Curtain wall fitting structure

Abstract

To provide a curtain wall fitting structure securing high load resistant performance in a surface outer direction and a surface inner direction of a curtain wall and high quietness performance for movement of the curtain wall.SOLUTION: A curtain wall fitting structure has a frame fixed portion 40 to be fixed to a frame 3. Either one of the frame fixed portion 40 or the frame 3 has a protrusion 4112, and the other has a concavity 3012 to be fitted to the protrusion 4112. The protrusion 4112 consists of a plurality of crest parts extending in a vertical direction. The concavity 3012 consists of a plurality of valley parts extending in the vertical direction. The crest parts fit to the valley parts.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to an attachment structure for a curtain wall.

Background Art

[0002] A curtain wall provided in a building is known (see, for example, Patent Document 1). The curtain wall is fixed to the ground or the floor surface by a fixing device.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In recent years, there has been an increasing demand for high load-bearing performance (wind pressure resistance, seismic resistance, etc.) of a curtain wall in the out-of-plane and in-plane directions, and high quiet performance with respect to the movement of the curtain wall. There is a demand for improving the performance of the fastener bracket that constitutes the fixing member for ensuring these.

[0005] An object of the present disclosure is to provide an attachment structure for a curtain wall that ensures high load-bearing performance of the curtain wall in the out-of-plane and in-plane directions and high quiet performance with respect to the movement of the curtain wall.

Means for Solving the Problems

[0006] The present disclosure relates to an attachment structure for a curtain wall that fixes a frame supporting the face material of a curtain wall composed of a plurality of face materials to a building frame, the attachment structure including a frame-fixed portion fixed to the frame, wherein either one of the frame-fixed portion and the frame has a convex portion and the other has a concave portion that fits into the convex portion.

Brief Description of the Drawings

[0007]

Figure 1

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Embodiments for Carrying Out the Invention

[0008] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In this specification, the "looking direction" means the surface direction of the glass panel 2 of the curtain wall 1 of the building B as a building, and the "prospective direction" means the thickness direction (i.e., the depth direction) of the glass panel 2. The "prospective direction" is also the indoor-outdoor direction (the surface inside-outside direction). The "looking surface" means each surface facing the outdoor side and the indoor side of the glass panel 2, and the "prospective surface" means a surface extending in the indoor-outdoor direction. In the drawings, the outdoor side of the curtain wall 1 is defined as the outdoor side X1, and the side closer to the indoor side of the curtain wall 1 is defined as the indoor side X2.

[0009] As shown in FIG. 2 and the like, the mounting structure 10 of the curtain wall is fixed to the steel frame S constituting the building body and supports the frame 3 (marionette) that supports the glass panel 2 as the facing material. Specifically, as shown in FIG. 4 and the like, the mounting structure 10 of the curtain wall includes a building body fixing portion 20 (slab bracket), a connecting portion 30 (hook bracket), and a frame fixing portion 40 (marionette bracket).

[0010] As shown in FIG. 8 and the like, the building body fixing portion 20 (slab bracket) has a rectangular plate-shaped base portion 211, an end locking portion 212 that rises upward from the end of the outdoor side X1 of the base portion 211, and a movement preventing portion 213 that rises upward and has a lower height than the end locking portion 212 on the indoor side X2 with respect to the end locking portion 212.

[0011] The base portion 211 is fixed to the steel frame S by bolts 214, and thereby the building body fixing portion 20 is fixed to the steel frame S. The end locking portion 212 extends from one end to the other end of the end of the outdoor side X1 of the base portion 211 and rises upward. The upper end portion of the end locking portion 212 has a shape that is a part of a circle having an arc of a semicircle or more (central angle of 180 degrees or more) in a side view.

[0012] The movement prevention part 213 extends from one end to the other end in the left - right direction (the finding direction of the base part 211) parallel to the end - locking part 212 and rises upward. The upper end part of the movement prevention part 213 has a plate - like part 2131 that is horizontal and has a constant width in the prospective direction. On the upper surface of the plate - like part 2131, a groove 2132 is formed as a rotation prevention recess that has a constant width in the prospective direction and extends in the longitudinal direction of the plate - like part 2131.

[0013] On the upper surface of the plate - like part 2131, a stopper 2133 is provided. The stopper 2133 has a rectangular plate - like movement prevention part 2134 that is integrally formed and connected, and a rectangular plate - like rotation prevention convex part 2135 that projects downward from the movement prevention part 2134 by one step and has a width that fits into the groove 2132 and fits into the groove 2132. A rectangular notch 2136 is formed in the movement prevention part 2134 in a plan view. The rotation prevention convex part 2135 is fixed to the plate - like part 2131 by a screw 2137 in a state of being fitted into the groove 2132.

[0014] As shown in FIG. 10, the connecting part 30 (hook bracket) has an indoor - side part 311 with a downward - opening U - shaped notch formed integrally and connected, and a guide part 312 with a pair of C - shaped cylindrical parts extending in the vertical direction and integrally formed and connected on the indoor side. The connecting part 30 connects the body - fixed part 20 (slab bracket) and the frame - fixed part 40 (marionette bracket).

[0015] Between the downward - opening U - shaped notch of the indoor - side part 311 and the upper end part of the end - locking part 212 (see FIG. 8), a sound - suppressing member 42 is arranged so as to be sandwiched between them. Specifically, as shown in FIG. 12, the sound - suppressing member 42 has a downward - opening U - shaped sound - suppressing member main body 421, and screw - fixing parts 422 that project upward from both ends in the width direction of the sound - suppressing member main body 421 at the center of the U - shape of the U - shaped sound - suppressing member main body 421.

[0016] As shown in Fig. 8, by fixing the screwing portion 422 to the indoor side portion 311 with the screw 43, the sound suppression member 42 is fixed to the indoor side portion 311, and the sound suppression member main body 421 (see Fig. 12) is disposed between the indoor side portion 311 and the end locking portion 212. The indoor side portion 311 is slidable via the sound suppression member 42 with respect to the upper end portion of the end locking portion 212. When sliding in this way, it is possible to suppress the generation of abnormal sounds between the indoor side portion 311 and the end locking portion 212.

[0017] The indoor side portion 3112, which forms a U-shaped notch opening downward in the indoor side portion 311, is inserted into the notch 2136 as shown in Fig. 8 and the like. Thus, when the portion 3112 of the indoor side portion 311 abuts against the portion of the movement prevention portion 213 where the notch 2136 is formed, the movement of the connecting portion 30 in the left-right direction of the finding direction can be blocked.

[0018] Due to this abutment, a force trying to rotate acts on the movement prevention portion 213, but the rectangular rotation prevention convex portion 2135 is fitted in the groove 2132. Therefore, the portion of the movement prevention portion 213 forming the edge in the width direction of the groove 2132 and the long side of the rectangular rotation prevention convex portion 2135 abut against each other over a long distance, and the rotation of the movement prevention portion 213 can be blocked. Further, since the rotation prevention convex portion 2135 is fixed to the plate-like portion 2131 with the screw 2137 in a state of being fitted in the groove 2132, it can maintain a firmly fixed state.

[0019] A through hole 3111 with an internal thread is formed in the indoor side portion 311 of the connecting portion 30. A suspension fitting M (see Fig. 13) composed of a load ring for fail-safe can be fixed to the through hole 3111. When constructing the curtain wall, the glass panel 2 etc. are lifted by sandwiching the fittings provided at locations other than the connecting portion 30. However, even if the fitting comes off by any chance, by fixing the suspension fitting for fail-safe to the through hole 3111, it is possible to prevent the glass panel 2 etc. from falling.

[0020] As shown in Fig. 10, a support portion 313 protruding toward the outdoor side X1 is integrally formed and connected to the central portion of a pair of C-shaped cylindrical guide portions 312. The support portion 313 has a cylindrical shape extending in the vertical direction with the same length as the length of the guide portion 312 in the vertical direction.

[0021] As shown in Figs. 6, 9, etc., the frame fixing portion 40 (marionette bracket) includes a vertically long rectangular outdoor side plate portion 411, a guided contact portion 412, and a bolt 41 (see Figs. 8, 11) as a contact portion. The outdoor side plate portion 411 and the guided contact portion 412 are integrally formed and connected.

[0022] The rectangular outdoor side plate portion 411 has a through hole 4111 and a jagged convex portion 4112 formed by a plurality of small ridges and valleys extending in the vertical direction in parallel. A female screw is threaded in the through hole 4111, and a bolt 4113 (see Fig. 5) passes through, and the outdoor side plate portion 411 is fixed to the frame 3.

[0023] The jagged convex portion 4112 is formed from the upper end portion to the lower end portion of the frame fixing portion 40, more specifically, from the upper end portion to the lower end portion of the outdoor side plate portion 411. With this configuration, it becomes possible to form the frame fixing portion 40 having the jagged convex portion 4112 by extrusion molding. The shapes of the ridges and valleys of the jagged convex portion 4112 are the same as the shapes of the valleys and ridges of the jagged concave portion 3012 of the frame 3 described later and can be fitted to each other. The height from the apex of the ridge to the bottom of the valley of the jagged convex portion 4112 is 0.5 mm or more and 2 mm or less, and is 1.5 mm in this embodiment. The width of each ridge and valley is 1 mm or more and 4 mm or less, and is 3 mm in this embodiment.

[0024] If the value is smaller than this range, when the jagged convex portion 4112 is fitted into the jagged concave portion 3012 of the frame 3 as described later, it cannot be firmly fitted. If the value is larger than this range, it becomes difficult to process the jagged convex portion 4112, and it also becomes difficult to fit the jagged convex portion 4112 and the jagged concave portion 3012 and attach the frame 3 to the frame-fixed portion 40.

[0025] As described above, the frame-fixed portion 40 is fixed to the frame 3 by fixing the outdoor side plate portion 411 to the frame 3 by passing the bolt 4113 through the through-hole 4111. In addition, by fitting the jagged convex portion 4112 and the jagged concave portion 3012, the frame-fixed portion 40 is firmly fixed to the frame 3 in the expected direction, which is the indoor-outdoor direction. Therefore, it becomes possible to enhance the wind pressure resistance so that the frame 3 and the frame-fixed portion 40 fixed to the frame 3 via the frame 3 can withstand the wind pressure transmitted to the glass panel 2, and it becomes possible to further enhance the safety.

[0026] As shown in FIG. 6 and the like, the guided contact portion 412 has a bifurcated portion 4121 that bifurcates into a semicircular arc shape in a plan view from the indoor-side end of the outdoor side plate portion 411, and a pair of columnar portions 4122 that extend in the vertical direction at the tip of the bifurcated portion 4121. The bifurcated portion 4121 and the pair of columnar portions 4122 are integrally formed and connected.

[0027] A female thread is threaded on the inner peripheral surface of the bifurcated portion 4121. The male thread of the bolt 41 (see FIGS. 5, 8, and 11) inserted from above is screwed into the female thread in the space formed by the inner peripheral surface of the bifurcated portion 4121. Further, the support portion 313 is inserted into the space formed by the inner peripheral surface of the bifurcated portion 4121 so as to be non-contact and vertically movable with respect to the bifurcated portion 4121 from below. In addition, each of the pair of columnar portions 4122 is inserted into the space inside the guide portion 312, which is a pair of C-shaped cylindrical portions of the connecting portion 30, and is fitted to the guide portion 312 so as to be relatively slidable in the vertical direction with respect to the inner peripheral surface of the guide portion 312.

[0028] As a result, the pair of cylindrical portions 4122 are guided to slide in the vertical direction with respect to the pair of guide portions 312. Further, since the side surfaces (circumferential surfaces) of the pair of cylindrical portions 4122 are in contact with the inner circumferential surfaces of the pair of C-shaped cylindrical guide portions 312 from the outdoor side, they are configured to withstand the high wind pressure applied to the glass panel 2 transmitted to the frame 3 and the frame-fixed portion 40 fixed to the frame 3 via the frame 3.

[0029] As shown in FIG. 8 and the like, the bolt 41 is inserted from above into a space 4123 formed by the inner circumferential surface of the branch portion 4121 (see FIG. 9 and the like) through a nut and a washer. The male thread of the bolt 41 is screwed into the female thread screwed on the inner circumferential surface of the branch portion 4121. The lower end portion of the bolt 41 abuts on the upper end surface of the support portion 313 as shown in FIG. 11. By this abutment, the support portion 313 supports the bolt 41, the frame-fixed portion 40 having the branch portion 4121 with which the bolt 41 is screwed, and further the glass panel 2 supported by the frame 3 to which the frame-fixed portion 40 is fixed, and is configured to withstand the support of their own weights.

[0030] Thus, the bolt 41, the frame-fixed portion 40 having the branch portion 4121 with which the bolt 41 is screwed, and further the portion configured to withstand the support of the own weight of the glass panel 2 supported by the frame 3 to which the frame-fixed portion 40 is fixed, namely, the bolt 41 as the abutting portion, the guided abutting portion 412 of the frame-fixed portion 40, and the pair of cylindrical portions 4122 and the guide portion 312, which are the portions configured to withstand the high wind pressure applied to the glass panel 2 transmitted to the frame 3 and the frame-fixed portion 40 fixed to the frame 3 via the frame 3, are constituted by different portions.

[0031] Therefore, when a high wind pressure acts on the glass panel 2 or during an earthquake, it is possible to suppress the generation of abnormal noises due to shaking as compared with the case where the self-weight is received by the screwing of the bolts. Further, in the portion having a structure capable of withstanding the support of the self-weight, in the space 4123 formed by the inner peripheral surface of the branch portion 4121, the support portion 313 is inserted from below into the branch portion 4121 so as to be non-contact and vertically movable. Since a sufficient gap is formed between the support portion 313 and the branch portion 4121 so as to be non-contact, it is possible to prevent the generation of abnormal noises in this portion when a high wind pressure acts on the glass panel 2 or during an earthquake, and it is possible to obtain high quietness.

[0032] Furthermore, in the pair of columnar portions 4122 and the guide portion 312, which are portions having a structure capable of withstanding the high wind pressure transmitted to the glass panel 2 and fixed to the frame 3 via the frame 3 to the frame-fixed portion 40, the pair of columnar portions 4122 are slidable in the vertical direction with respect to the guide portion 312. Therefore, in the portion having a structure capable of withstanding high wind pressure, the glass panel 2 and the frame 3 supporting the glass panel 2 can move in the vertical direction.

[0033] Also, since the position of the bolt 41 does not displace in the vertical direction in the same manner as the position of the support portion 313 due to the contact of the lower end portion of the bolt 41 with the upper end surface of the support portion 313, by rotating the bolt 41 with respect to the branch portion 4121, the frame-fixed portion 40 having the branch portion 4121 with respect to the bolt 41 is configured to be relatively movable in the vertical direction.

[0034] The frame 3 (marion) has a hollow structure having a plurality of spaces inside. The inner surface of the wall portion 301 closer to the indoor side extending in the prospective direction (indoor-outdoor direction) constituting the hollow structure of the frame 3 has a jagged concave portion 3012 that fits into the jagged convex portion 4112 from the upper end portion to the lower end portion of the frame 3. With this configuration, it is possible to form the frame 3 in which the jagged concave portion 3012 is formed by extrusion molding. The outdoor end of the frame 3 supports the left or right edge of the glass panel 2 as shown in FIG. 4 and the like.

[0035] The preferred embodiment of the present disclosure has been described above. However, the present disclosure is not limited to the above-described embodiment and can be appropriately modified.

[0036] For example, in this embodiment, the outdoor side plate-like portion 411 has a jagged convex portion 4112, and the frame 3 has a jagged concave portion 3012, but the present disclosure is not limited thereto. For example, the outdoor side plate-like portion may have a concave portion, and the frame may have a convex portion. Further, the convex portion and the concave portion are not limited to a mountain portion and a valley portion, respectively, and the convex portion and the concave portion may be configured in a shape that fits with each other.

Explanation of Reference Numerals

[0037] 1 Curtain wall 2 Glass panel 3 Frame 10 Mounting structure of curtain wall 20 Fixed portion to the body 30 Connecting portion 40 Fixed portion to the frame 41 Bolt (contact portion) 42 Sound suppression member 312 Guide portion 313 Support portion 412 Contact portion with the guide 2132 Groove (rotation prevention concave portion) 2133 Stopper 2135 Rotation prevention convex portion 2137 Screw 3012 Jagged concave portion (concave portion) 3111 Through hole 4112 Jagged convex portion (convex portion) M Hanging metal fitting S Steel frame

Claims

1. A curtain wall mounting structure for fixing a frame that supports the facing materials of a curtain wall composed of a plurality of facing materials to the building structure, comprising a frame-fixed part fixed to the frame, wherein one of the frame-fixed part and the frame has a convex part, and the other has a concave part that fits into the convex part.

2. The convex part is composed of a plurality of ridges extending in the vertical direction, the concave part is composed of a plurality of valleys extending in the vertical direction, The curtain wall mounting structure according to claim 1, wherein the ridge fits into the valley.

3. The plurality of ridges are formed from the upper end to the lower end of the frame-fixed part, The curtain wall mounting structure according to claim 2, wherein the plurality of valleys are formed from the upper end to the lower end of the frame.

4. The height from the apex of the ridge to the bottom of the valley is 0.5 mm or more and 2 mm or less, and the width of one ridge is 1 mm or more and 4 mm or less. The curtain wall mounting structure according to claim 3.

5. a structure-fixed part fixed to the structure, and a connecting part that connects the frame-fixed part and the structure-fixed part, The curtain wall mounting structure according to claim 1, wherein the connecting part is configured to be able to fix a suspension fitting for fail-safe.

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