Decorative material fall prevention tool, decorative material with the same, and decorative material unit with the same

Abstract

To provide a decorative material fall prevention tool capable of preventing falling of a decorative material even when slackening occurs in a coupling material for fixing the decorative material to a fixing member.SOLUTION: As a fall prevention 16 for preventing falling of a louver 2, one is used, which comprises: an abutment 40 that is disposed above a stringer 10a for fixing the louver 2 to a curtain wall 1 and that supports the weight of the louver 2 on the stringer 10a; and an attachment 41 that slides to be engaged with the louver 2 disabling deformation to at least the lower part of the louver 2 and that is fixed to the louver 2 by a fastening member 15.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present disclosure relates to a cosmetic material fall prevention device, a cosmetic material with a fall prevention device, and a cosmetic material unit with a fall prevention device. [Background technology]

[0002] In buildings and other structures, efforts are being made to improve the exterior design by improving the surface properties of the panel materials that make up the walls and by improving the arrangement of the frame materials that make up the walls.

[0003] In recent years, the demands for the exterior design of buildings have become more diverse, and it may not be possible to fully meet the demands for exterior design by simply improving the wall components that make up the walls of the building.

[0004] Therefore, it has been considered to improve the exterior design by attaching decorative materials to wall components of buildings.

[0005] Japanese Patent Application Laid-Open Publication No. 2013-174078 discloses a structure in which multiple vertical crosspieces, which are decorative materials, are fixed to an exterior wall via furring strips, which are fixing metal fittings, and wall-edge materials fixed to the exterior wall. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-174078 Summary of the Invention [Problem to be solved by the invention]

[0007] Bolts and nuts are commonly used as fastening members for fixing decorative materials to fastening fittings. In addition, to prevent the bolts and nuts from loosening, it has also been considered to use bolts and / or nuts that have been treated to prevent loosening.

[0008] However, even when using bolts and / or nuts that have been treated to prevent loosening, it is difficult to completely prevent the bolts and nuts from loosening. In the unlikely event that the bolts and nuts loosen, there is a risk that the decorative material will fall off the fastening hardware.

[0009] The present disclosure aims to provide a cosmetic material fall prevention device that can prevent a cosmetic material from falling even if a connecting member for fixing the cosmetic material to a fixing member becomes loose. [Means for solving the problem]

[0010] The decorative material fall prevention device of the first aspect of the present disclosure is fixed by a fastening member to a decorative material fixed to a wall component via a fixing bracket, and prevents the decorative material from falling, and is equipped with an abutment portion and an attachment portion.

[0011] The abutment portion is disposed above the fixing metal fitting and allows the fixing metal fitting to support the weight of the decorative material.

[0012] The mounting portion slides and engages with the decorative material so as to prevent the decorative material from being displaced downward at least, and is fixed to the decorative material by the fastening member.

[0013] A second aspect of the cosmetic fall prevention device of the present disclosure is the cosmetic fall prevention device of the first aspect of the present disclosure, wherein the abutment portion is configured to be able to engage with the fixing bracket in the out-of-plane direction of the wall component.

[0014] A cosmetic fall prevention tool according to a third aspect of the present disclosure is the cosmetic fall prevention tool according to the second aspect of the present disclosure, wherein the abutting portion has a substantially L-shaped end face shape.

[0015] A cosmetic material fall prevention device of a fourth aspect of the present disclosure is a cosmetic material fall prevention device of any of the first to third aspects of the present disclosure, wherein the mounting portion slidably engages with the cosmetic material to prevent the cosmetic material from being displaced in an out-of-plane direction of the wall component.

[0016] A cosmetic fall prevention device according to a fifth aspect of the present disclosure is a cosmetic fall prevention device according to any one of the first to fourth aspects of the present disclosure, wherein the attachment portion has an engagement groove for sliding engagement with the cosmetic material.

[0017] A cosmetic fall prevention device of a sixth aspect of the present disclosure is a cosmetic fall prevention device of the fifth aspect of the present disclosure, wherein the mounting portion has a first mounting plate connected to the abutment portion, a second mounting plate spaced apart in the thickness direction of the first mounting plate and arranged approximately parallel to the first mounting plate, and a connecting plate connecting the first mounting plate and the second mounting plate. The engagement groove is provided in a portion surrounded on three sides by the first mounting plate, the second mounting plate, and the connecting plate.

[0018] A seventh aspect of the cosmetic fall prevention device of the present disclosure is a cosmetic fall prevention device of the sixth aspect of the present disclosure, wherein the first mounting plate has a first mounting hole through which the fastening member is inserted, and the second mounting plate has a second mounting hole through which the fastening member is inserted, coaxial with the first mounting hole.

[0019] The eighth aspect of the cosmetic fall prevention device of the present disclosure is the seventh aspect of the cosmetic fall prevention device of the present disclosure, wherein the second mounting plate engages with the cosmetic so as to prevent relative rotation around the central axis of the second mounting hole.

[0020] A cosmetic fall prevention device of a ninth aspect of the present disclosure is a cosmetic fall prevention device of any of the seventh to eighth aspects of the present disclosure, wherein the second mounting plate has a pair of seat portions for protruding strips on both sides of the second mounting hole on the surface facing away from the first mounting plate.

[0021] A decorative material fall prevention device of a 10th aspect of the present disclosure is a decorative material fall prevention device of any of the first to ninth aspects of the present disclosure, in which the decorative material is a louver arranged with its longitudinal direction facing up and down, and the fixing metal fittings are stringers arranged with its longitudinal direction facing left and right.

[0022] The decorative material with fall prevention device of the first to third aspects of the present disclosure comprises a decorative material that is fixed to a wall component via fixing brackets, and a fall prevention device that is fixed to the decorative material by a fastening member and prevents the decorative material from falling.

[0023] A cosmetic material with a fall prevention device according to the first aspect of the present disclosure has a fall prevention device which is any one of the cosmetic material fall prevention devices according to the first to tenth aspects of the present disclosure, and the cosmetic material has an engagement portion which slides and engages with the mounting portion.

[0024] A cosmetic material with a fall prevention device of the second aspect of the present disclosure is a cosmetic material fall prevention device according to any one of the sixth to ninth aspects of the present disclosure, and the cosmetic material has an engagement portion consisting of an engagement plate that slides into engagement groove provided in the mounting portion, and an accommodating portion that can accommodate the second mounting plate that constitutes the mounting portion without rattle.

[0025] A third aspect of the present disclosure is a decorative material with fall prevention devices, wherein the decorative material has a slit-shaped insertion portion that opens on the surface facing the wall component and communicates with the storage portion, and has a pair of engaging plates on both sides of the insertion portion.

[0026] The decorative material unit with fall prevention device of the first aspect of the present disclosure comprises a plurality of decorative materials, fixing brackets that connect the plurality of decorative materials and fix the plurality of decorative materials to a wall component, connecting members that fix each of the plurality of decorative materials to the fixing brackets, and a fall prevention device that is fixed to the decorative materials by a fastening member and prevents the decorative materials from falling. The fall prevention device is a cosmetic material fall prevention device according to any one of the first to tenth aspects of the present disclosure, and the cosmetic material has an engaging portion that slides and engages with the attachment portion. [Effects of the Invention]

[0027] According to the cosmetic fall prevention device according to one aspect of the present disclosure, even if the joining member for fixing the cosmetic material to the fixing member becomes loose, the cosmetic material can be prevented from falling. [Brief explanation of the drawings]

[0028] [Figure 1] FIG. 1 is a schematic diagram showing the exterior wall of a building to which louvers to which a fall prevention device according to a first embodiment of the present disclosure is applied are fixed. [Figure 2] FIG. 2 is a schematic cross-sectional view taken along line AA in FIG. [Figure 3] FIG. 3 is a schematic diagram showing the curtain wall in the first example before the louvers are fixed. [Figure 4] FIG. 4 is an enlarged view of part B in FIG. [Figure 5] FIG. 5 is a cross-sectional view taken along line CC in FIG. [Figure 6] FIG. 6 is a partially enlarged view of FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along line DD in FIG. [Figure 8] FIG. 8 is a partially enlarged view of FIG. [Figure 9] FIG. 9 is a schematic diagram showing the louver unit of the first example. [Figure 10] FIG. 10 is a view of a portion of the louver in the vertical direction as viewed from the indoor side before the fall prevention device is fixed, in the first example. [Figure 11] FIG. 11 is a view corresponding to FIG. 10, showing a state in which the fall prevention device is fixed to the louver, in relation to the first example. [Figure 12] FIG. 12 is a cross-sectional view taken along line EE in FIG. [Figure 13] FIG. 13 is a view of FIG. 11 as seen from above. [Figure 14] 14A to 14C are diagrams showing a fall prevention device of the first example, in which FIG. 14A is a front view, FIG. 14B is a side view, and FIG. 14C is a plan view. [Figure 15] FIG. 15 is a perspective view showing a fall prevention device of the first example. DETAILED DESCRIPTION OF THE INVENTION

[0029] [Example 1] A first example of an embodiment of the present disclosure will be described with reference to FIGS.

[0030] In this example, a case will be described in which a decorative material fall prevention device according to one aspect of the present disclosure is applied to prevent the fall of a louver, which is a decorative material.

[0031] However, the decorative material fall prevention device according to one aspect of the present disclosure is not limited to louvers, but can be applied to prevent the fall of other decorative materials other than louvers, such as decorative panels and punched metals.

[0032] FIG. 1 shows an example of an exterior wall of a building 3, in which a plurality of louvers 2 are fixed to the exterior side of a curtain wall 1.

[0033] In the following explanation, the left-right direction and the up-down direction refer to the respective directions when the curtain wall 1, which is the wall component to which the louvers 2 are fixed, is viewed from the front. Furthermore, the out-of-plane direction refers to the depth direction (projection direction) when the curtain wall 1 is viewed from the front, and the outdoor side in the out-of-plane direction is simply referred to as the "outdoor side," and the indoor side in the out-of-plane direction is simply referred to as the "indoor side." Below, an overview of the curtain wall 1 and the louvers 2 will be given, followed by a detailed explanation of the structure of the louvers 2 and their surrounding components, as well as the fall prevention device 16.

[0034] The curtain wall 1 forms the exterior wall of the building 3 .

[0035] The curtain wall 1 of this example is a mullion-type curtain wall, and includes a plurality of mullions 4, a plurality of mullions 5a, 5b, a plurality of glass panels 6, and a plurality of spandrel panels 7.

[0036] The mullions 4 are arranged with their longitudinal axes facing up and down and are fixed to the outdoor side of the main body 9 via mounting brackets 8. The transoms 5a, 5b are arranged with their longitudinal axes facing left and right and are connected to span between adjacent mullions 4 in the left and right direction. The glass panels 6 are installed in openings surrounded on all four sides by the mullions 4 and the transoms 5a, 5b and form the window section of the building 3. The spandrel panels 7 are installed in openings surrounded on all four sides by the mullions 4 and the transoms 5a, 5b and form the wall section of the building 3.

[0037] In the building 3 of this example, the glass panels 6 and spandrel panels 7 are arranged continuously in the left-right direction, sandwiching the mullions 4 between them, and the glass panels 6 and spandrel panels 7 are arranged alternately in the up-down direction, sandwiching the latticework 5a and 5b between them.

[0038] The louvers 2 are fixed to the exterior side of the curtain wall 1 as described above, and form the exterior wall of the building 3.

[0039] The louvers 2 are fixed to the curtain wall 1 via stringers 10 a and 10 b, which are fixing metal fittings, and brackets 11 fixed to the curtain wall 1 .

[0040] Specifically, the louvers 2 are fixed to the stringers 10a and 10b by first connecting members 12. The stringers 10a and 10b are fixed to the brackets 11 by second connecting members 13. The brackets 11 are fixed to the mullions 4 of the curtain wall 1 by third connecting members 14.

[0041] Fall prevention devices 16 are fixed to the louver 2 by fastening members 15. Fall prevention devices 16 prevent the louver 2 from falling even if the first connecting members 12 for fixing the louver 2 to the stringers 10a, 10b become loose.

[0042] The multiple louvers 2 are arranged with their longitudinal directions facing up and down, and are connected by multiple stringers 10a, 10b that are arranged with their longitudinal directions facing left and right, to form a louver unit 17, which is an example of a decorative material unit. In the example shown in Figure 9, the louver unit 17 is formed by connecting eight louvers 2 with two stringers 10a, 10b.

[0043] The multiple louvers 2 that make up the louver unit 17 are arranged parallel to each other and at equal intervals in the left-right direction. The multiple stringers 10a, 10b that make up the louver unit 17 are arranged parallel to each other and spaced apart in the up-down direction.

[0044] The louver units 17 are arranged continuously in the vertical and / or horizontal directions on the outdoor side of the curtain wall 1, arranged at intervals in the vertical and / or horizontal directions, or arranged randomly, thereby giving design characteristics to the exterior wall of the building 3.

[0045] The number of louvers and stringers that make up a louver unit can be changed as appropriate depending on the installation position of the louver unit, etc. Furthermore, the vertical positions of the stringers that make up the louver unit can also be changed as appropriate depending on the installation position of the louver unit, etc.

[0046] The louver unit 17 is fixed to the curtain wall 1 by fixing both left and right end portions of the stringers 10a, 10b to the brackets 11 with second connecting members 13.

[0047] The louver units 17 are pre-assembled in a factory and transported to the construction site of the building 3. The louver units 17 are then lifted using a crane or the like and fixed to the brackets 11 which have been pre-fixed to the mullions 4 in the factory.

[0048] The following describes the structure of the louver 2 and its peripheral components, as well as the fall prevention device 16. However, the following description is an example of an embodiment, and can be modified as desired within the scope of the effects of the invention.

[0049] The louver 2 is made of an extruded aluminum alloy material and has a generally rectangular cylindrical shape.

[0050] The louver 2 has an engaging portion 18 that slides and engages with a mounting portion 41 (described later) that constitutes the fall prevention device 16 .

[0051] In this example, the louver 2 further has an indoor side wall portion 19 facing the curtain wall 1, a storage portion 20, and an insertion portion 21 that penetrates the indoor side wall portion 19 and communicates with the storage portion 20.

[0052] The storage section 20 is provided in the left-right center of the indoor end of the louver 2. The storage section 20 is a space with a rectangular cross section, and accommodates the second mounting plate 47 (described below) that constitutes the mounting section 41 of the fall prevention device 16, and the head 23 of the bolt 22 that constitutes the first connecting member 12. The storage section 20 can accommodate the second mounting plate 47 without rattle. The storage section 20 can also accommodate the head 23 of the bolt 22 so that it cannot rotate relative to the bolt 22. The head 23 of the bolt 22 is configured in the shape of a rectangular plate.

[0053] The storage section 20 opens onto both vertical end faces of the louver 2. The storage section 20 is provided over the entire length of the louver 2. The storage section 20 is formed in an area surrounded on all four sides by the indoor side wall section 19 and a partition section 24 provided on the outdoor side of the indoor side wall section 19 and having a substantially U-shaped cross section. The partition section 24 is composed of a bottom wall section 24a arranged substantially parallel to the indoor side wall section 19 and a pair of side wall sections 24b spaced apart in the left-right direction and arranged substantially parallel to each other. A screw hole 25 is formed in one vertical location of the bottom wall section 24a. The screw hole 25 has a tapping (internal thread groove) formed in it. The screw hole 25 is threadedly engaged with a screw, which is the fastening member 15.

[0054] The insertion section 21 penetrates the indoor side wall section 19 in the out-of-plane direction and communicates with the storage section 20. The insertion section 21 is configured as a long slit in the longitudinal direction of the louver 2, and opens at both end faces in the vertical direction of the louver 2 and at the center in the horizontal direction of the indoor side surface. The insertion section 21 is provided over the entire length of the louver 2.

[0055] The insertion portion 21 has a narrow portion 26 and a wide portion 27 that have different width dimensions in the left-right direction. Most of the insertion portion 21 is made up of the narrow portion 26, and the wide portion 27 is formed in one location in the up-down direction of the insertion portion 21. Specifically, the wide portion 27 is formed in the vicinity of the upper side of the portion of the louver 2 to which the stringer 10a is fixed.

[0056] The width dimension in the left-right direction of the narrow width portion 26 is larger than the diameter of the shaft portion 28 of the bolt 22 that constitutes the first connecting member 12 and smaller than the left-right dimension of the head portion 23 of the bolt 22.

[0057] The width dimension in the left-right direction of the wide portion 27 is greater than the width dimension in the left-right direction of the narrow portion 26. In this example, the width dimension in the left-right direction of the wide portion 27 is the same as the width dimension in the left-right direction of the storage portion 20.

[0058] In this example, the engagement portion 18 is provided on the upper portion of the wide portion 27 of the indoor side wall portion 19 of the louver 2 .

[0059] In this example, the engaging portion 18 is made up of a pair of flat engaging plates 29. Specifically, the engaging portion 18 is made up of a pair of engaging plates 29.

[0060] The pair of engagement plates 29 are provided on portions of the indoor side wall 19 of the louver 2 that are located on both sides of the narrow width portion 26 of the insertion portion 21. In other words, the pair of engagement plates 29 are located near both the left and right sides of the narrow width portion 26 of the indoor side wall 19 and are formed by portions that protrude toward the indoor side of the storage section 20. In the illustrated example, the lower end surfaces of the pair of engagement plates 29 are formed as concave curved surfaces, but they may also be formed as flat surfaces.

[0061] Both upper and lower end faces of the louver 2 are covered by covers 30. The cover 30 fixed to the lower end face of the louver 2 has drainage holes 31 formed therein.

[0062] The stringers 10 a and 10 b correspond to fixing members and fix the louvers 2 to the curtain wall 1 .

[0063] The stringers 10a and 10b are long members made of extruded aluminum alloy material, and are arranged with their longitudinal directions oriented in the left-right direction.

[0064] The stringers 10a and 10b have an L-shaped plate configuration, and have an end face shape that is approximately L-shaped when viewed from the left and right. The stringers 10a and 10b include a vertical plate portion 32 and a horizontal plate portion 33.

[0065] The stringers 10a and 10b are arranged at positions overlapping the stringers 5a and 5b in the out-of-plane direction.

[0066] In this example, the stringers 10a, 10b are attached in opposite directions in the vertical direction depending on their attachment positions relative to the louver 2. That is, the stringer 10a, which is located on the outdoor side of the transom 5a that holds the upper edge of the glass panel 6, is attached to the louver 2 with the unconnected end of the vertical plate portion 32, which is not connected to the horizontal plate portion 33, facing upward, whereas the stringer 10b, which is located on the outdoor side of the transom 5b that holds the lower edge of the glass panel 6, is attached to the louver 2 with the unconnected end facing downward. The stringers 10a, 10b are the same part, except that they are attached in different directions.

[0067] The vertical plate portion 32 has a generally flat plate shape, is disposed with its plate thickness direction aligned with the out-of-plane direction, and is fixed to the indoor side wall portion 19 of the louver 2 by the first connecting member 12 .

[0068] The vertical plate portion 32 has a plurality of through holes 34 through which the shafts 28 of the bolts 22 constituting the first connecting member 12 can be inserted. The vertical plate portion 32 has the same number of through holes 34 as the number of louvers 2 constituting the louver unit 17. The plurality of through holes 34 are arranged spaced apart in the left-right direction at an equal pitch as the louvers 2 constituting the louver unit 17. The through holes 34 are provided in the middle of the vertical plate portion 32.

[0069] The louver 2 and the vertical plate portion 32 are fastened together by accommodating the head 23 of the bolt 22 in the accommodation portion 20 of the louver 2, loosely fitting a washer 35 onto the shaft portion 28 that is inserted in the out-of-plane direction through the insertion portion 21 of the louver 2 and the through hole 34 of the vertical plate portion 32, and then screwing in a nut 36. In this example, the bolt 22 and the nut 36 are fitted with a loosening prevention device. Note that although the work of fixing the louver 2 to the stringers 10a, 10b can be performed at the construction site, it is preferable to perform this work in a factory to improve workability.

[0070] In this example, the vertical plate portion 32 has a flat end face on the non-connection side that is not connected to the horizontal plate portion 33. That is, the upper end face of the vertical plate portion 32 that constitutes the stringer 10a and the lower end face of the vertical plate portion 32 that constitutes the stringer 10b are flat.

[0071] In this example, the vertical plate portion 32 has a protruding portion 37 at the end on the non-connecting side that protrudes toward the indoor side. The protruding portion 37 has a substantially trapezoidal cross-sectional shape. However, when implementing a decorative material fall prevention device according to one embodiment of the present disclosure, the protruding portion can be omitted. Furthermore, the cross-sectional shape of the protruding portion is not limited to a trapezoid, and other shapes, such as a hook shape, can be used.

[0072] The horizontal plate portion 33 has a flat plate shape and is disposed substantially horizontally with its thickness direction aligned with the vertical direction.

[0073] For stringer 10a, which is arranged on the outdoor side of transom 5a that holds the upper edge of glass panel 6, the outdoor side end of horizontal plate portion 33 is connected to the lower end of vertical plate portion 32. In contrast, for stringer 10b, which is arranged on the outdoor side of transom 5b that holds the lower edge of glass panel 6, the outdoor side end of horizontal plate portion 33 is connected to the upper end of vertical plate portion 32.

[0074] The horizontal plate portion 33 has both left and right end portions fixed to the bracket 11 by second connecting members 13. Specifically, the both left and right end portions of the horizontal plate portion 33 are fixed to the bracket 11 using the second connecting members 13 arranged with their central axes oriented vertically.

[0075] The bracket 11 is fixed to the outdoor side of the mullion 4 using a third connecting member 14 arranged with its central axis facing out of the plane. The bracket 11 is made of, for example, aluminum, stainless steel, or steel, and includes a vertical wall portion 38 fixed to the mullion 4 and a base plate portion 39 to which the horizontal plate portions 33 of the stringers 10a, 10b are fixed.

[0076] Fall prevention equipment The fall prevention device 16 is fixed to the louver 2 by a fastening member 15 to prevent the louver 2 from falling even if the bolt 22 and nut 36 that make up the first connecting member 12 become loose.

[0077] In this example, one fall prevention device 16 is fixed to one louver 2. However, when implementing a decorative material fall prevention device according to one embodiment of the present disclosure, multiple fall prevention devices can also be fixed to one decorative material.

[0078] The fall prevention device 16 is made of an extruded aluminum alloy material and is integrally constructed as a whole. The width of the fall prevention device 16 in the left-right direction is smaller than the width of the louver 2 in the left-right direction.

[0079] The fall prevention device 16 has a contact portion 40 and an attachment portion 41 .

[0080] The abutment portion 40 is positioned above the stringer 10a, which is a fixing metal fitting, and allows the weight of the louver 2 to be supported by the stringer 10a in the event that the bolt 22 and nut 36 that constitute the first connecting member 12 become loose.

[0081] In this example, the fall prevention device 16 is disposed above one stringer 10a, of the multiple stringers 10a, 10b fixed to the louver 2, which is attached to the louver 2 with the non-connected end of the vertical plate portion 32 facing upward. The abutment portion 40 is disposed above the vertical plate portion 32.

[0082] The abutment portion 40 has an abutment portion main body 42. The abutment portion main body 42 abuts against the stringer 10a and serves to support the weight of the louver 2 on the stringer 10a. The abutment portion main body 42 has a lower surface that can come into contact with the upper end surface of the vertical plate portion 32 of the stringer 10a. In this example, the lower surface of the abutment portion main body 42 is configured as a flat surface. Therefore, the lower surface of the abutment portion main body 42 is in surface contact with the upper end surface of the vertical plate portion 32. However, the lower surface of the abutment portion main body 42 can also be positioned closely opposite the upper end surface of the vertical plate portion 32. The abutment portion main body 42 is configured in a substantially flat plate shape (rectangular plate shape).

[0083] The out-of-plane dimension of the abutment portion main body 42 is slightly larger than the out-of-plane dimension of the upper end of the vertical plate portion 32 that constitutes the stringer 10a, i.e., the portion of the vertical plate portion 32 that includes the protrusion portion 37.

[0084] In this example, the abutment portion 40 has a hook portion 43 in addition to the abutment portion main body 42. The hook portion 43 can engage with the stringer 10a in the out-of-plane direction and serves to prevent the louver 2 from moving away from the curtain wall 1 to the outdoor side.

[0085] When implementing a cosmetic material fall prevention device according to one aspect of the present disclosure, the hook portion can be omitted from the abutment portion if a separate member is provided to prevent the cosmetic material from moving in a direction away from the wall constituent material, or if the abutment portion main body can prevent the cosmetic material from moving in a direction away from the wall constituent material by, for example, engaging the lower surface of the abutment portion main body with the upper end surface of the fixing member in a concave-convex manner.

[0086] The hook portion 43 extends downward from the indoor end of the contact portion main body 42. The hook portion 43 is configured in a generally flat plate shape (rectangular plate shape) and is bent at a right angle to the contact portion main body 42. Therefore, the entire contact portion 40 is configured in a generally L-shaped plate shape, and has a generally L-shaped end face shape when viewed from the left and right direction.

[0087] The hook portion 43 is disposed on the indoor side of the upper end of the vertical plate portion 32 that constitutes the stringer 10a. The upper end (extension portion 37) of the vertical plate portion 32 and the hook portion 43 face each other in the out-of-plane direction with a small gap between them. This allows the hook portion 43 to engage with the upper end of the vertical plate portion 32 in the out-of-plane direction. The vertical dimension of the hook portion 43 can be determined appropriately depending on the overall length and weight of the louver 2, but in the illustrated example, it is slightly smaller than the out-of-plane dimension of the abutment portion main body 42.

[0088] In this example, the left-right dimension of the hook portion 43 is the same as the left-right dimension of the contact portion main body 42. Therefore, the hook portion 43 is provided over the entire left-right length of the contact portion main body 42. However, the hook portion may be provided only on a portion of the left-right length of the contact portion main body.

[0089] In this example, the plate thickness of the abutment portion main body 42 is greater than the plate thickness of the hook portion 43. A thick reinforcing portion 44a is provided at the corner between the abutment portion main body 42 and the hook portion 43. The thick reinforcing portion 44a prevents the angle between the abutment portion main body 42 and the hook portion 43 from becoming larger than 90 degrees.

[0090] In this example, the contact portion 40 is configured as a generally L-shaped plate, consisting of a flat contact portion body 42 and a hook portion 43. However, the shape of the contact portion is not limited to a generally L-shaped plate, and can be changed as appropriate depending on the shape of the upper end of the fixing member, etc., as long as the fixing member can support the weight of the decorative material.

[0091] Mounting portion 41 slidably engages with louver 2 to prevent at least downward displacement of louver 2 (preventing louver 2 from at least downward displacement relative to mounting portion 41), and is fixed to louver 2 by fastening member 15. In other words, mounting portion 41 is not only fastened and fixed to louver 2 by fastening member 15, but also slidably engages with louver 2.

[0092] In this example, attachment portion 41 slidably engages with louver 2 to prevent louver 2 from being displaced downward and to prevent louver 2 from being displaced in an out-of-plane direction.

[0093] In this example, the mounting portion 41 has an engagement groove 45 for sliding engagement with the louver 2. The engagement groove 45 engages with the engagement portion 18 provided on the louver 2. Specifically, the engagement groove 45 is a recessed groove having a rectangular cross-sectional shape, and engages with a pair of engagement plates 29 provided on the louver 2. The engagement of the engagement groove 45 with the pair of engagement plates 29 prevents the louver 2 from displacing downward relative to the mounting portion 41, and also prevents the louver 2 from displacing in an out-of-plane direction relative to the mounting portion 41.

[0094] The engagement groove 45 opens upward so that the pair of engagement plates 29 can enter the inside of the engagement groove 45 by displacing the mounting portion 41 from the bottom side to the top side with respect to the louver 2, and the mounting portion 41 can slide and engage with the louver 2. The engagement groove 45 also opens on both the left and right sides so as to engage with the pair of engagement plates 29.

[0095] The engagement grooves 45 are closed on the bottom to prevent downward displacement of the louver 2 relative to the mounting portion 41. In addition, the engagement grooves 45 are closed on both out-of-plane sides to prevent displacement of the louver 2 relative to the mounting portion 41 in both out-of-plane directions.

[0096] In this example, an example is shown in which the engagement groove 45 provided on the mounting portion 41 engages with the engagement portion 18 consisting of a pair of engagement plates 29 provided on the louver 2, but when implementing a decorative material fall prevention device according to one embodiment of the present disclosure, a structure can also be adopted in which the engagement portion (engagement plate) provided on the mounting portion engages with the engagement groove provided on the decorative material.

[0097] In this example, the mounting portion 41 further includes a first mounting plate 46 connected to the abutment portion 40, a second mounting plate 47 spaced apart in the thickness direction of the first mounting plate 46 and arranged approximately parallel to the first mounting plate 46, and a connecting plate 48 connecting the first mounting plate 46 and the second mounting plate 47.

[0098] The engagement groove 45 is provided in a portion surrounded on three sides by the first attachment plate 46, the second attachment plate 47, and the connecting plate 48.

[0099] The first mounting plate 46 extends upward from the outdoor end of the abutment portion main body 42 that constitutes the abutment portion 40. The first mounting plate 46 is configured in a substantially flat plate shape (rectangular plate shape) and is bent at a right angle to the abutment portion main body 42. The first mounting plate 46 and the hook portion 43 that constitutes the abutment portion 40 are arranged substantially parallel to each other.

[0100] The plate thickness of the first mounting plate 46 is greater than the plate thickness of the abutment portion main body 42. A thick reinforcing portion 44b is provided at the inside corner between the first mounting plate 46 and the abutment portion main body 42. The thick reinforcing portion 44b prevents the angle between the first mounting plate 46 and the abutment portion main body 42 from becoming larger than 90 degrees.

[0101] The left-right dimension of the first mounting plate 46 is the same as the left-right dimension of the abutting portion main body 42. The up-down dimension of the first mounting plate 46 is greater than the out-of-plane dimension of the abutting portion main body 42.

[0102] The first mounting plate 46 has a first mounting hole 49 through which the fastening member 15 is inserted. The first mounting hole 49 is formed in the upper part of the center in the left-right direction of the first mounting plate 46. In this example, the fastening member 15 is formed by a screw, and therefore the first mounting hole 49 is formed by a cylindrical hole.

[0103] The second mounting plate 47 is configured in a substantially flat plate shape (rectangular plate shape).

[0104] The left-right dimensions and plate thickness (out-of-plane dimensions) of the second mounting plate 47 are restricted to a size that allows the second mounting plate 47 to be accommodated inside the accommodation section 20 of the louver 2 without any rattling in the out-of-plane and left-right directions.

[0105] Specifically, the left-right dimension of the second mounting plate 47 is slightly smaller than the left-right dimension of the accommodating section 20 (wide portion 27) and is larger than the left-right width dimension of the narrow portion 26 of the insertion section 21. The left-right dimension of the second mounting plate 47 is also smaller than the left-right dimension of the first mounting plate 46. In the illustrated example, the left-right dimension of the second mounting plate 47 is approximately one-third of the left-right dimension of the first mounting plate 46.

[0106] The thickness of the second mounting plate 47 is slightly smaller than the out-of-plane dimension of the accommodating portion 20 and is greater than the thickness of the first mounting plate 46 .

[0107] The vertical dimension of the second mounting plate 47 is slightly smaller than the vertical dimension of the wide portion 27. The vertical dimension of the second mounting plate 47 is also smaller than the vertical dimension of the first mounting plate 46. The second mounting plate 47 is disposed in a position facing the upper portion of the first mounting plate 46. In the illustrated example, the upper end of the second mounting plate 47 protrudes higher than the upper end of the first mounting plate 46, but the upper end of the second mounting plate 47 can also be disposed in the same position as the upper end of the first mounting plate 46. The second mounting plate 47 is disposed in a position facing the center of the first mounting plate 46 in the left-right direction.

[0108] The second mounting plate 47 has a second mounting hole 50 through which the fastening member 15 is inserted. The second mounting hole 50 is arranged coaxially with the first mounting hole 49. The second mounting hole 50 is configured as a cylindrical hole.

[0109] The second mounting plate 47 is accommodated inside the accommodation portion 20 of the louver 2 without any rattle in the out-of-plane direction or the left-right direction. In other words, the second mounting plate 47 is accommodated between the indoor side wall portion 19 and the partition wall portion 24 that constitute the louver 2 with almost no gap.

[0110] The second mounting plate 47 is accommodated inside the accommodation portion 20 through the wide portion 27 of the insertion portion 21 formed in the indoor side wall portion 19 of the louver 2.

[0111] The second mounting plate 47 engages with the louver 2 to prevent relative rotation about the central axis of the second mounting hole 50. In other words, the left and right side surfaces of the second mounting plate 47 abut against the side wall portions 24b that separate the left and right sides of the storage section 20, preventing relative rotation about the central axis of the second mounting hole 50 with respect to the louver 2.

[0112] The second mounting plate 47 has a pair of protruding seats 51 on both sides of the second mounting hole 50 in the vertical direction on its outdoor side facing away from the first mounting plate 46. The seats 51 are provided at the upper and lower ends of the outdoor side of the second mounting plate 47 over the entire length in the horizontal direction. The amount of protrusion of the seats 51 is sufficiently small compared to the thickness of the second mounting plate 47.

[0113] The connecting plate 48 connects the vertical middle portion of the first mounting plate 46 and the lower end portion of the second mounting plate 47. The left-right dimension of the connecting plate 48 is the same as the left-right dimension of the second mounting plate 47.

[0114] In this example, in order to fix the fall prevention device 16 to the louver 2, first, the mounting portion 41 is slidably engaged with the louver 2. For this purpose, the second mounting plate 47 constituting the mounting portion 41 is inserted into the inside of the storage portion 20 through the wide portion 27 of the insertion portion 21 provided on the louver 2.

[0115] Next, the fall prevention device 16 is displaced from below to above relative to the louver 2, causing the pair of engagement plates 29 to enter inside the engagement groove 45 and slidingly engaging the mounting portion 41 with respect to the louver 2. When displacing the fall prevention device 16 from below to above relative to the louver 2, the fall prevention device 16 is displaced upward relative to the louver 2 until the lower ends of the pair of engagement plates 29 abut against the upper surface of the connecting plate 48 that forms the bottom surface of the engagement groove 45.

[0116] After the mounting portion 41 is slidably engaged with the louver 2, a screw, which is the fastening member 15, is inserted through the insertion portion 21, the first mounting hole 49, and the second mounting hole 50, in that order. The fastening member 15 is then screwed into the screw hole 25 in the bottom wall portion 24a that constitutes the partition wall portion 24 of the louver 2. This causes the mounting portion 41 of the fall prevention device 16 to slidably engage with the louver 2 and be fixed by the fastening member 15. In this example, a case has been described in which a screw is used as the fastening member 15, but when implementing a decorative material fall prevention device according to one embodiment of the present disclosure, the fastening member for fixing the fall prevention device to the decorative material is not limited to a screw, and tapping screws, bolts and nuts, rivets, etc. can also be used.

[0117] The work of fixing the fall prevention device 16 to the louver 2 can be performed in a factory before the work of fixing the louver 2 to the stringers 10a, 10b. When fixing the louver 2 to the stringers 10a, 10b after fixing the fall prevention device 16 to the louver 2, the head 23 of the bolt 22 constituting the first connecting member 12 is inserted into the inside of the accommodation portion 20 from the lower end surface of the louver 2. Then, the bolt 22 is moved upward relative to the louver 2, and the shank 28 of the bolt 22 is inserted into the through-hole 34 of the vertical plate portion 32 constituting the stringer 10a. Then, with the upper end surface of the vertical plate portion 32 constituting the stringer 10a abutting against the lower surface of the abutment portion main body 42 of the abutment portion 40 constituting the fall prevention device 16, a washer 35 is loosely fitted onto the shank 28 of the bolt 22, and a nut 36 is screwed onto it. The louver 2 can be secured to the other stringer 10b after the louver 2 has been secured to the stringer 10a.

[0118] According to this example, even if the bolts 22 and nuts 36 of the first connecting members 12 that secure the louvers 2 to the stringers 10a and 10b become loose, the louvers 2 can be prevented from falling.

[0119] That is, in this example, a fall prevention device 16 is fixed to the louver 2, and includes an abutment portion 40 that is positioned above the stringer 10a and supports the weight of the louver 2 on the stringer 10a, and an attachment portion 41 that slides and engages with the louver 2 to prevent at least downward displacement of the louver 2 and is fixed to the louver 2 by a fastening member 15.

[0120] Therefore, even if the bolts 22 and nuts 36 of the first connecting member 12 loosen, the weight of the louvers 2 can be supported by the stringer 10a via the abutment portions 40 of the fall prevention device 16. Specifically, the weight of the louvers 2 can be supported by the stringer 10a via the abutment portion main body 42 of the fall prevention device 16 that abuts against the upper end surface of the vertical plate portion 32 that constitutes the stringer 10a. As a result, the louvers 2 fixed to the curtain wall 1 can be prevented from falling. Furthermore, when the louver unit 17 is lifted using a crane or the like to be fixed to the curtain wall 1, the louvers 2 can be prevented from falling.

[0121] Furthermore, the attachment portion 41 of the fall prevention device 16 is not only fixed to the louver 2 by the fastening member 15, but also slides into engagement with the louver 2 to prevent the louver 2 from being displaced downward. Therefore, even if the fastening member 15 loosens, the louver 2 can be prevented from falling.

[0122] In this example, the abutment portion 40 constituting the fall prevention device 16 has a configuration that allows it to engage with the stringer 10a in the out-of-plane direction. Specifically, the abutment portion 40 has a hook portion 43 arranged on the indoor side of the vertical plate portion 32 constituting the stringer 10a, and the hook portion 43 is capable of engaging with the vertical plate portion 32 in the out-of-plane direction. Therefore, even if the fastening member 15 loosens, the hook portion 43 engages with the vertical plate portion 32 in the out-of-plane direction, preventing the louver 2 from moving outdoors relative to the curtain wall 1. Therefore, the abutment portion main body 42 constituting the abutment portion 40 can be prevented from falling off the upper end surface of the vertical plate portion 32 constituting the stringer 10a, effectively preventing the louver 2 from falling.

[0123] In this example, mounting portion 41 constituting fall prevention device 16 is slidably engaged with louver 2 to prevent displacement in an out-of-plane direction. Specifically, a pair of engagement plates 29 constituting engagement portion 18 provided on louver 2 are engaged with engagement groove 45 constituting mounting portion 41 to prevent displacement in an out-of-plane direction. Therefore, even in the unlikely event that fastening member 15 becomes loose, it is possible to prevent louver 2 from being displaced in an out-of-plane direction relative to fall prevention device 16.

[0124] In this example, the second mounting plate 47 that constitutes the mounting portion 41 of the fall prevention device 16 is housed without rattle inside the housing portion 20 provided in the louver 2, and is engaged with the louver 2 so that it cannot rotate relative to the louver 2 around the central axis of the second mounting hole 50. Therefore, even in the unlikely event that the fastening member 15 becomes loose, the louver 2 can be prevented from rotating relative to the fall prevention device 16 around the central axis of the second mounting hole 50. Therefore, this also helps to prevent the louver 2 from falling.

[0125] In this example, the outdoor side of the second mounting plate 47 that constitutes the mounting portion 41 of the fall prevention device 16 has a pair of protruding seats 51 on both sides of the second mounting hole 50 in the vertical direction, so that when a screw that is the fastening member 15 is screwed into the screw hole 25 in the bottom wall portion 24a of the louver 2, the second mounting plate 47 can be elastically deformed so as to be curved, with the pair of seats 51 as fulcrums. This improves the bonding strength between the fall prevention device 16 and the louver 2 by the fastening member 15. This effectively prevents the louver 2 from falling. [Explanation of symbols]

[0126] 1. Curtain wall 2 Louvers 3 Building 4 mullions 5a, 5b no eyes 6 Glass Panels 7 Spandrel Panels 8 Mounting Brackets 9 skeleton 10a, 10b stringer 11 Bracket 12 first connecting member 13 Second connecting member 14 Third connecting member 15 Fastening members 16 Fall prevention equipment 17 Louver unit 18 Engagement part 19 Indoor wall 20 Storage section 21 Insertion part 22 volts 23 Head 24 Bulkhead 24a Bottom wall 24b Side wall part 25 screw holes 26 Narrow part 27 Wide section 28 Shaft 29 Engagement plate 30 Cover 31 Drain hole 32 Vertical plate section 33 Horizontal plate part 34 Through hole 35 washer 36 Nut 37 Overhang 38 Vertical wall 39 Seat plate part 40 Contact part 41 Mounting part 42 Contact body 43 Hook 44a, 44b Thick reinforcement section 45 Engagement groove 46 First mounting plate 47 Second mounting plate 48 Connecting plate 49 First mounting hole 50 Second mounting hole 51 Seat area

Claims

1. A decorative material fall prevention device that is fixed by a fastening member to a decorative material that is fixed to a wall component via a fixing metal fitting and prevents the decorative material from falling, a contact portion disposed above the fixing metal fitting and allowing the fixing metal fitting to support the weight of the decorative material; and an attachment portion that slides and engages with the decorative material to prevent downward displacement of the decorative material, and is fixed to the decorative material by the fastening member. A device to prevent makeup from falling.

2. The decorative material fall prevention device according to claim 1 , wherein the abutting portion is configured to be able to engage with the fixing metal fitting in an out-of-plane direction of the wall component.

3. The cosmetic fall prevention device according to claim 2 , wherein the contact portion has a substantially L-shaped end face.

4. 2. The decorative material fall prevention device according to claim 1, wherein the mounting portion slidably engages with the decorative material to prevent the decorative material from being displaced in an out-of-plane direction of the wall component.

5. The cosmetic fall prevention device according to claim 1 , wherein the attachment portion has an engagement groove that slides and engages with the cosmetic material.

6. the mounting portion includes a first mounting plate connected to the abutment portion, a second mounting plate spaced apart in a thickness direction of the first mounting plate and disposed substantially parallel to the first mounting plate, and a connecting plate connecting the first mounting plate and the second mounting plate, The engagement groove is provided in a portion surrounded on three sides by the first mounting plate, the second mounting plate, and the connecting plate. The cosmetic fall prevention device according to claim 5.

7. the first mounting plate has a first mounting hole through which the fastening member is inserted; The second mounting plate has a second mounting hole, through which the fastening member is inserted, coaxially with the first mounting hole. The cosmetic fall prevention device according to claim 6.

8. 8. The cosmetic fall prevention device according to claim 7, wherein the second mounting plate engages with the cosmetic material so as to prevent relative rotation about the central axis of the second mounting hole.

9. The cosmetic fall prevention device described in claim 7, wherein the second mounting plate has a pair of protruding seats on both sides of the second mounting hole on the surface facing away from the first mounting plate.

10. The decorative material is a louver arranged with its longitudinal direction facing the up-down direction, The fixing metal fittings are stringers arranged with their longitudinal directions oriented in the left-right direction. The cosmetic fall prevention device according to claim 1.

11. The wall structure includes a decorative material that is fixed to a wall component via a fixing bracket, and a fall prevention device that is fixed to the decorative material with a fastening member and prevents the decorative material from falling, The fall prevention device is a cosmetic material fall prevention device according to any one of claims 1 to 10, The decorative material has an engagement portion that slides and engages with the attachment portion. Decorative material with fall prevention device.

12. The wall structure includes a decorative material that is fixed to a wall component via a fixing bracket, and a fall prevention device that is fixed to the decorative material with a fastening member and prevents the decorative material from falling, The fall prevention device is a cosmetic material fall prevention device according to any one of claims 6 to 9, The decorative material has an engaging portion formed of an engaging plate that slides and engages with the engaging groove provided in the mounting portion, and an accommodating portion that can accommodate the second mounting plate that constitutes the mounting portion without rattle. Decorative material with fall prevention device.

13. The decorative material with fall prevention device described in claim 12, wherein the decorative material has a slit-shaped insertion portion that opens on the surface facing the wall component and communicates with the storage portion, and has a pair of the engaging plates on both sides of the insertion portion.

14. The wall structure comprises a plurality of decorative materials, fixing hardware that connects the plurality of decorative materials and fixes the plurality of decorative materials to a wall component, a connecting member that fixes each of the plurality of decorative materials to the fixing hardware, and a fall prevention device that is fixed to the decorative materials by a fastening member and prevents the decorative materials from falling, The fall prevention device is a cosmetic material fall prevention device according to any one of claims 1 to 10, The decorative material has an engagement portion that slides and engages with the attachment portion. Cosmetic material unit with fall prevention device.

Images