JP4708977B2 - Window frame device - Google Patents

Description

  The present invention relates to a window frame device provided in precast concrete.

  The window frame device includes a horizontally extending upper and lower frame and a plurality of vertically extending vertices, and a window glass (window plate) is fitted in a space defined by the upper and lower frames and the erected. Yes.

  The window frame device is required to have strength to withstand wind pressure. More specifically, a positive wind pressure and a negative wind pressure act on the window glass, and the window frame needs to support the load from the window glass. In order to satisfy this requirement, the upper and lower frames are fixed to a precast concrete panel (hereinafter abbreviated as a PC panel) with fixing means such as bolts and nuts, and the upper and lower ends of the vertical are connected to the PC plate and wind pressure is applied. The generated load from the window glass was shared with the upper and lower frames and supported.

  Explaining the above-mentioned vertical connection structure, a highly rigid angle member is fixed to the inner surface of the PC panel window on the upper and lower floors, and a bracket is fixed to the angle member. The bracket has a vertical wall perpendicular to the longitudinal direction of the upper and lower frames, and the vertical upper and lower ends of the bracket are connected to the vertical wall by bolts and nuts.

  The upper and lower ends of the vertical are connected so as to absorb the relative displacement of the upper and lower frames during an earthquake. More specifically, the upper and lower ends of the vertical are pivotable about the axis of the bolt (the axis parallel to the upper and lower frames) in the connection structure. The relative displacement in the direction perpendicular to the longitudinal direction) can be absorbed.

  An elastic material is interposed between the upright wall and the vertical wall of the bracket. Further, a positioning bracket is fixed to the upper and lower frames, and this positioning bracket has receiving portions that form convex curved surfaces on both the left and right sides of the vertical wall, and the pair of receiving portions are in contact with the left and right inner surfaces of the vertical hollow portion. ing. As a result, the upper and lower ends of the vertical body can be rotated around an axis extending inward and outward of the window relative to the upper and lower frames, and the relative displacement of the upper and lower frames in the left-right direction of the window (longitudinal direction of the upper and lower frames) It can be absorbed.

  Recently, PC panels with embedded upper and lower frames have been developed. By fixing this PC panel to the building body, the installation work of the upper and lower frames can be omitted, and the installation cost can be greatly reduced. The above concrete-embedded upper and lower frames can withstand a greater load than the case where the upper and lower frames separate from the PC panel are fixed by fixing means.

  In the conventional window frame structure using the upper and lower frames embedded in the PC panel, as in the window frame device using the upper and lower frames separate from the PC panel, the stand is connected to the PC panel using angle members and brackets. As a result, the cost of the vertical consolidation was still high.

  The present invention has been made to solve the above-mentioned problems, and is made of an extrusion mold material, and is partially embedded in precast concrete, and extends horizontally, and is made of an extrusion mold material and extends vertically and disposed between the upper and lower frames. In the window frame device provided with a plurality of vertices, horizontally extending engagement ridges are integrally formed on the lower surface of the upper frame and the upper surface of the lower frame. A pair of receiving portions having a convex curved surface and extending horizontally are provided on the inner surface of the window, and engaging recesses for accommodating the above engaging protrusions are formed on the upper and lower ends of the vertical. Further, an abutting surface that is substantially in contact with the pair of receiving portions is formed.

  According to the above configuration, since the upper and lower ends of the vertical are connected to the upper and lower frames, the connection structure is simplified, the connection work is facilitated, and the cost is reduced as compared with the case where the vertical is connected to the precast concrete. be able to. More specifically, the engaging recesses at the upper and lower ends of the vertical are connected so that the engaging protrusions of the upper and lower frames are fitted. When the window plate receives wind pressure, a part of the load from the window plate can be received by the contact surface of the engaging recess hitting one of the pair of receiving portions of the engaging protrusions of the upper and lower frames. The upper and lower frames receive a load directly from the window plate and a part of the load from the window plate through the vertical frame. As a result, almost all the load from the window plate is received by the upper and lower frame. However, since it is embedded in precast concrete, it can receive a sufficiently large load.

  In addition, since the upper and lower ends of the vertical are in contact with the pair of receiving portions in which the pair of contact surfaces form a convex curved surface, the axis extending in the left-right direction of the window (longitudinal direction of the upper and lower frames) is centered with respect to the upper and lower frames. It is possible to rotate, and it is possible to absorb the relative displacement in the window inside and outside of the upper and lower frames during the earthquake (direction perpendicular to the longitudinal direction of the upper and lower frames). In addition, since the abutment surfaces of the upright and lower ends of the vertical are in contact with the receiving portions of the engaging ridges, they can be rotated around an axis extending inward and outward of the window. The relative displacement in the left-right direction can be absorbed.

  Preferably, the receiving portion is formed integrally with the engaging protrusion. According to this, a vertical connection structure can be obtained at a lower cost.

Preferably, positioning brackets are fixed to the lower surface of the upper frame and the upper surface of the lower frame, and each positioning bracket is provided with a pair of auxiliary receiving portions that have convex curved surfaces and extend inward and outward from the window. In addition, the upper and lower end portions of the vertical member have auxiliary contact surfaces that are substantially in contact with the pair of auxiliary receiving portions.
According to this configuration, the vertical bracket can be positioned at a predetermined position in the left-right direction of the window in the upper and lower frames by the positioning bracket, and cooperates with the fitting structure between the vertical engagement recess and the upper frame engagement protrusion. Thus, it is possible to stably support the vertical. Further, since the auxiliary receiving portion of the positioning bracket forms a convex curved surface and hits the vertical auxiliary contact surface, the upper and lower ends of the vertical bracket can be rotated around an axis extending inward and outward of the window with respect to the upper and lower frames. In the event of an earthquake, relative displacement in the horizontal direction of the window of the upper and lower frames can be allowed.

In one aspect of the positioning bracket, the window includes a pair of vertical walls that are spaced apart from each other in the left-right direction of the window, and the auxiliary receiving portion is formed on the surfaces of the pair of vertical walls that face each other. In this case, the upper and lower ends of the vertical are accommodated between the pair of vertical walls, and the outer surface of the vertical is provided as the auxiliary contact surface.
In another aspect of the positioning bracket, the positioning bracket has a vertical wall, and the pair of auxiliary receiving portions are formed on the left and right side surfaces of the vertical wall. The vertical has a hollow portion, and the vertical walls of the positioning bracket are accommodated in the upper and lower ends of the hollow portion. In this case, the inner side surface of the vertical hollow portion is provided as a secondary contact surface.

  Preferably, the upper and lower frames integrally have a horizontal support plate portion positioned on the inner side of the window from the engagement protrusion, and the positioning bracket is fixed to the horizontal support plate portion. According to this configuration, the positioning bracket can be covered with the finishing plate or the like disposed inside the window, and the appearance is good.

  Preferably, the upper and lower frames integrally have a support wall arranged outside the window of the engagement protrusion, and a fitting groove for fitting a window plate is provided between the support wall and the engagement protrusion. Is formed. According to this, since the engaging protrusion becomes one wall of the fitting groove, the configuration is simplified.

  According to the present invention, the vertical connecting structure is simplified and the connecting work is facilitated, so that the cost can be reduced.

  Hereinafter, a window frame device according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the window frame device includes an upper frame 10, a lower frame 20, and a plurality of verticals 30 as main components. A window glass 3 (window plate) is disposed in a space defined by the upper frame 10, the lower frame 20 and the vertical 30. The upper frame 10 and the lower frame 20 are made of an aluminum extrusion mold that extends horizontally, and the vertical 30 is made of an aluminum extrusion mold that extends vertically.

  The upper frame 10 is embedded in the lower surface of a precast concrete panel 1 (hereinafter abbreviated as a PC panel) extending horizontally and elongated. Further, the lower frame 20 is embedded in the upper surface of another PC panel 2 that extends horizontally and elongated. Although not shown, a lower frame of the upper floor window frame device is embedded in the upper surface of the PC panel 1, and an upper frame of the lower floor window frame device is embedded in the lower surface of the PC panel 2.

  The upper frame 10 includes a hollow base portion 11 having a flat rectangular cross section, a horizontal support plate portion 12 projecting horizontally from the base portion 11 toward the inside of the window, and extends upward from the base portion 11 and the horizontal support plate portion 12. Embedded in the PC panel 1, embedded hollow projections 15 projecting downward from the lower surface of the base 11 and having a vertically elongated cross section, and disposed outside the window from the engagement projections 15. And a support wall 16 that is vertically formed. A space between the engagement protrusion 15 and the support wall 16 is a fitting groove 17 for fitting the upper edge portion of the window glass 3.

  Similarly to the upper frame 10, the lower frame 20 has a hollow base portion 21 having a flat cross section, a horizontal support plate portion 22 projecting horizontally from the base portion 21 toward the inside of the window, and the base portion 21 and the horizontal support plate. Embedded pieces 23 and 24 that extend downward from the portion 22 and are embedded in the PC panel 2, a hollow engaging ridge 25 that protrudes upward from the upper surface of the base portion 21 and has a vertically rectangular cross section, and an engaging ridge 25 A vertical support wall 26 arranged on the outside of the window is integrally provided. A space between the engagement protrusion 25 and the support wall 26 is a fitting groove 27 for fitting the lower edge portion of the window glass 3.

  Receiving portions 15a and 15b each having a convex curved surface are integrally formed on the window outer surface and the window inner surface of the engaging protrusion 15 of the upper frame 10, respectively. The receiving portion 15a on the outside of the window is formed near the lower end of the engaging protrusion 15, and the receiving portion 15b on the inside of the window is formed at a position higher than the receiving portion 15a.

  Similarly, receiving portions 25a and 25b each having a convex curved surface are integrally formed on the outer surface of the window and the inner surface of the engagement protrusion 25 of the lower frame 20, respectively. The receiving part 25a on the outside of the window is formed near the upper end of the engaging protrusion 25, and the receiving part 25b on the inside of the window is formed at a position lower than the receiving part 25a.

  As shown best in FIGS. 2 and 3, the vertical 30 has a hollow portion 31 (base portion) whose cross-sectional shape is an elongated rectangle in the inside and outside of the window, and a connection extending from the hollow portion 31 to the outside of the window. The plate part 32 and the pressing edge 33 located at the end of the connecting plate part 32 outside the window are integrally provided. An intermediate portion of the connecting plate portion 32 is a thick portion 32a.

  As shown in FIGS. 1 to 3, the upper and lower end portions of the vertical 30 are cut out except for the hollow portion 31. More specifically, the thick portion 32 a of the connecting plate portion 32 is cut so as to be shorter than the hollow portion 31, and the upper and lower ends of the thick portion 32 a are retracted by a predetermined amount from the upper and lower ends of the hollow portion 31. Further, the other portions of the connecting plate portion 32 and the pressing edge 33 are cut so as to be shorter than the thick portion 32a, and the upper and lower ends of these portions are further retracted by a predetermined amount from the upper and lower ends of the thick portion 32a.

  By the above-described notch processing, engagement concave portions 35 are formed between the hollow portion 31 and the thick portion 32a at the upper and lower end portions of the vertical 30. The engagement recesses 35 accommodate the engagement protrusions 15 of the upper frame 10 and the engagement protrusions 25 of the lower frame 20, respectively.

  The two surfaces 35a and 35b that define the engaging recess 35 are provided as contact surfaces. One abutting surface 35a is a flat vertical surface inside the window of the thick portion 32a. The other abutment surface 35b is a flat vertical surface obtained by cutting the projection 31a on the surface outside the window of the hollow portion 31.

  The contact surfaces 35a and 35b of the upper engaging recess 35 are opposed to substantially contact the receiving portions 15a and 15b of the engaging protrusion 15 of the upper frame 10. The contact surfaces 35a, 35b of the lower engaging recess 35 are opposed to substantially contact the receiving portions 25a, 25b of the engaging protrusion 25 of the lower frame 20.

  As shown in FIG. 1, positioning brackets 40 are fixed to the horizontal support plate portions 12 and 22 of the upper frame 10 and the lower frame 20, respectively. 2 to 4, the positioning bracket 40 is formed integrally with a fixed plate portion 41 fixed to the horizontal support plate portions 12 and 22 with screws 49 and the fixed plate portion 41. And a pair of vertical walls 42 spaced apart from each other in the left-right direction of the window (the longitudinal direction of the upper frame 10 and the lower frame 20). A sub-receiving portion 42a made of a convex curved surface is formed at the front end edge of the inner surface of these vertical walls 42 so as to extend in the window inside / outside direction.

  The pair of vertical walls 42 of the upper and lower positioning brackets 40 accommodate the upper and lower ends of the hollow portion 31 of the vertical 30. The left and right flat outer surfaces of the hollow portion 31 are sub-abutting surfaces 31b that face each other so as to substantially contact the sub-receiving portions 42a of the pair of vertical walls 42.

  As shown in FIG. 4, a height adjusting screw 50 is screwed into the lower end of the hollow portion 31 of the vertical 30, and the head of the height adjusting screw 50 is placed on the fixing plate portion 41 of the positioning bracket 40. The weight of the vertical 30 is supported.

  As shown in FIG. 1, a concrete floor slab 4 is connected to each of the PC panels 1 and 2. A floor 5 is constructed above the floor slab 4. A horizontal finishing plate 6 is installed on the edge of the floor 5 on the window side, and the finishing plate 6 covers a positioning bracket 40 fixed to the lower frame 20 so that it cannot be seen from the outside.

  A ceiling 7 is constructed below the floor slab on the upper floor. A finishing plate 9 is connected to the edge of the ceiling on the window side through a plate material 8. The finishing plate 9 covers the positioning bracket 40 fixed to the upper frame 10 so that it cannot be seen from the outside.

The operation of the window frame device having the above configuration will be described. The window glass 3 positive, negative large wind pressure is applied, the upper frame 10 of the window frame device from the window glass 3, the lower frame 20, a large load to the window inward and outward in the mullion 30 is applied. Since the upper frame 10 and the lower frame 20 are embedded in the PC panels 1 and 2 and are firmly fixed, they can withstand a large load.

  When the wind pressure is positive, the load applied to the vertical 30 is received when the upper and lower contact surfaces 35a of the vertical 30 contact the receiving portion 15a of the upper frame 10 and the receiving portion 25a of the lower frame 20. When the wind pressure is negative, the upper and lower abutment surfaces 35b of the vertical 30 contact the receiving portion 15b of the engaging ridge 15 of the upper frame 10 and the receiving portion 25b of the engaging ridge 25 of the lower frame 20. It is accepted.

  Since the receiving portions 15a and 25a are provided on the engaging protrusions 15 and 25 formed integrally with the upper frame 10 and the lower frame 20, the receiving portions 15a and 25a can sufficiently withstand the load applied from the vertical 30. . Thus, the load on the vertical 30 is finally received by the upper frame 10 and the lower frame 20.

  When the upper frame 10 and the lower frame 20 are displaced relative to the inside and outside of the window (left and right direction in FIG. 1) due to the earthquake, the upper and lower ends of the vertical 30 are longer than the upper frame 10 and the lower frame 20. It can be rotated about an axis extending in a direction (a direction orthogonal to the paper surface of FIG. 1). This is because the upper and lower contact surfaces 35a and 35b of the vertical 30 are in contact with the receiving portions 15a and 15b and the receiving portions 25a and 25b that form convex curved surfaces, and thus the rotation thereof is allowed. As a result, it is possible to avoid applying an excessive bending load due to the relative displacement of the upper frame 10 and the lower frame 20 to the vertical 30.

  When the upper frame 10 and the lower frame 20 are relatively displaced by the earthquake in the left-right direction of the window (direction perpendicular to the paper surface of FIG. 1), the direction perpendicular to the longitudinal direction of the upper frame 10 and the lower frame 20 It can be rotated around an axis extending in the (left-right direction in FIG. 1). This is because the sub-abutment surfaces 31b at the upper and lower ends of the hollow portion 31 of the vertical 30 are in contact with the sub-receiving portions 42a forming a pair of convex curved surfaces of the positioning bracket 40, so that its rotation is allowed. As a result, it is possible to avoid applying an excessive bending load due to the relative displacement of the upper frame 10 and the lower frame 20 to the vertical 30.

  A positioning bracket 70 shown in FIG. 5 may be used in the window frame device of the present invention. The positioning bracket 70 includes a fixed plate portion 71 fixed to the horizontal plate portion of the upper frame and the horizontal plate portion 22 of the lower frame 20, and a vertical wall 72 integrally formed at the center portion thereof. On the left and right sides of the vertical wall 72, auxiliary receiving portions 72a having a convex curved surface are formed. In this case, the vertical wall 72 is accommodated in the hollow portion 31 of the vertical 30, and the left and right inner surfaces of the hollow portion 31 serve as contact surfaces 31 c that are substantially in contact with the auxiliary receiving portion 72 a. Since the operation is the same as that of the first embodiment, the description thereof is omitted.

  The present invention is not limited to the above embodiment, and various aspects can be adopted. For example, the receiving portion provided on the engaging ridges of the upper and lower frames may be separate from the engaging ridges and may be fixed with screws or the like.

It is a longitudinal cross-sectional view of the window frame apparatus which makes one Embodiment of this invention. It is an external appearance perspective view of the lower structure of the window frame apparatus. It is an inside perspective view of the lower structure of the window frame device. It is a longitudinal cross-sectional view which shows the standing state of the window frame apparatus, and the engagement state of a positioning bracket. FIG. 5 is a view corresponding to FIG. 4 showing another aspect of the positioning bracket.

Explanation of symbols

1, 2 PC panels (precast concrete panels, precast concrete members)
3 Window glass (window plate)
DESCRIPTION OF SYMBOLS 10 Upper frame 20 Lower frame 15, 25 Locking protrusion 15a, 15b, 25a, 25b Receiving part 16, 26 Support wall 17, 27 Fitting groove 30 Vertical 31 Hollow part 31b, 31c Sub contact surface 35 Engaging recessed part 35a, 35b Abutting surfaces 40, 70 Positioning brackets 42, 72 Vertical walls 42a, 72a

Claims (5)

And upper and lower frames extending horizontally in the partially embedded in the window lateral direction precast concrete consists extrusion, stand up toward the plurality disposed between the upper and lower frames extending perpendicularly consists extrusion comprises, upper and lower In a window frame device in which a window plate is arranged in a space defined by a frame and a vertical ,
Engagement ridges that extend horizontally in the left-right direction of the window are integrally formed on the lower surface of the upper frame and the upper surface of the lower frame, and the surfaces of the engagement ridges on the outer and inner sides of the window have convex curved surfaces. A pair of receiving portions extending horizontally in the left-right direction of the window ,
The upper and lower ends of the mullion engaging recess for accommodating the engaging protrusion is formed on the engaging concave portion, a pair of abutment surfaces consisting of flat vertical surface in contact with the pair of receiving portions are formed ,
The window frame device according to claim 1, wherein the vertical is rotatable in an inward / outward direction of the window with respect to the upper / lower frame about an axis extending in the left / right direction of the window by contact between the contact surface and the receiving portion .   The window frame device according to claim 1, wherein the receiving portion is formed integrally with the engaging protrusion. An upper and lower frame made of extruded mold material, partially embedded in precast concrete and extending horizontally in the left-right direction of the window, and a plurality of vertical walls made of extruded mold material and vertically disposed between the upper and lower frames. In a window frame device in which a window plate is arranged in a space defined by a frame and a vertical,
Engagement ridges that extend horizontally in the left-right direction of the window are integrally formed on the lower surface of the upper frame and the upper surface of the lower frame, and the surfaces of the engagement ridges on the outer and inner sides of the window have convex curved surfaces. A pair of receiving portions extending horizontally in the left-right direction of the window,
Engaging recesses for accommodating the engaging ridges are formed on the upper and lower ends of the stand, and a pair of contact surfaces made of flat vertical surfaces in contact with the pair of receiving portions are formed in the engaging recesses. ,
The vertical is pivotable in the window inside and outside with respect to the upper and lower frames around the axis extending in the left-right direction of the window by the contact between the contact surface and the receiving portion.
further,
Positioning brackets are fixed to the lower surface of the upper frame and the upper surface of the lower frame, and each positioning bracket is provided with a pair of auxiliary receiving portions that have convex curved surfaces and extend horizontally in the window inward and outward directions. ,
The upper and lower ends of the vertical part have a pair of flat vertical sub-abutting surfaces in contact with the pair of sub-receiving parts,
The window frame device characterized in that the stand is rotatable in the left-right direction of the window with respect to the upper and lower frames about the axis extending in the window inner and outer directions by the contact between the auxiliary contact surface and the auxiliary receiving portion. .   The upper and lower frames integrally have a horizontal support plate portion positioned on the inner side of the window from the engagement protrusion, and the positioning bracket is fixed to the horizontal support plate portion. Window frame device. The upper and lower frames integrally have a support wall disposed outside the window of the engagement protrusion, and a fitting groove for fitting a window plate is formed between the support wall and the engagement protrusion. The window frame device according to claim 1, wherein the window frame device is provided.

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