JP2012067517A - Support of bent toughened glass plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support of a bent toughened glass plate, capable of preventing a mounting hole deformed by bending from receiving a locally concentrated load, so as to prevent the glass plate from being damaged.SOLUTION: A support 100 supports a bent toughened glass plate 1 through a mounting hole 2 arranged at a corner of the bent toughened glass plate 1, and comprises a fastening member 4 which is inserted through the mounting hole 2, a fastening nut 9 which holds the toughened glass plate 1 between the nut and the fastening member 4, and interposing members which are interposed between the fastening member 4 and the mounting hole 2. The mounting hole 2 has a large enlarged diameter part 2a with an opening in a convex surface of the bent toughened glass plate 1 and a small enlarged diameter part 2b with an opening in a concave surface of the bent toughened glass plate 1. The interposing members have a first interposing member 3 of which at least a part is interposed between the large enlarged diameter part 2a and the fastening member 4 and a second interposing member 14 which is interposed between the small enlarged diameter part 2b and the fastening member 4. At least a contact surface with the mounting hole 2 of the first interposing member 3 is formed from an elastic material.

Description

  The present invention relates to a support member that is inserted into an attachment hole provided in a corner portion of a bent tempered glass sheet and supports the bent tempered glass sheet.

  Various methods are known as a method of attaching a plate-like body such as a glass plate or a panel material for an outer wall of a building. Among them, a DPG (Dot Point Glazing) method for supporting a glass plate by supporting attachment holes provided at four corners of the glass plate with metal fittings is known as a method for constructing a glass screen without a frame.

  In this DPG method, a support bracket is provided at the tip of an X-shaped or H-shaped arm fixed to a housing, and the support bracket is inserted into mounting holes drilled in four corners of a glass plate, a panel, etc. It is a construction method that supports Various documents related to the DPG method are disclosed.

  Usually, in the DPG method, it is necessary to provide attachment holes for attaching support metal fittings to the four corners of a glass plate, and a flat glass plate is used as the glass plate.

  For example, in Japanese Patent Application Laid-Open No. H10-260260, the applicant of the present invention has an interposition member inscribed in the end surface of the mounting hole provided at the four corners of the plate-like body, and a tightening member matched to the end surface shape of the mounting hole is attached to the mounting hole. In the support structure of the plate-like body that is inserted through the other end and is clamped and clamped from the other end side by a tightening nut, a substantially cylindrical tightening member having a lid portion that matches the shape of the end surface of the mounting hole and a flange at one end A head bolt having a head with a concave portion in the vicinity of the center on the lid side, and a support bolt that supports the other end by being screwed to the housing directly or to a support fitting, and an inner surface of the fastening member at the front end of the opening side And a substantially cylindrical presser nut that contacts the spherical surface portion of the head to support the head and allows the support bolt to be detachable; A clamping nut that clamps and clamps the body, and a rotatable and slidable sphere provided between the recess and the lid, and the center of the sphere As the center of gravity of the plate are the same vertical line, discloses a support structure of the plate-like body, characterized in that supporting the supporting bolt tiltably by the retainer nut.

  Further, in Patent Document 2, a curved wall surface is formed by supporting adjacent panels with an arbitrary bending angle and allowing a support bolt for supporting the panel to be lowered at a nut fastening portion. A panel support structure that can be used is disclosed.

Japanese Patent Laid-Open No. 2003-176591 Japanese Patent Laid-Open No. 08-338096

  In the DPG method, it is necessary to provide mounting holes for mounting the support metal fittings at the four corners of the glass plate. Here, when the glass plate is a tempered glass plate, the tempered glass plate has a stress on the surface thereof, so that no attachment hole can be provided after the tempering treatment. Therefore, it is necessary to reinforce the glass plate after providing the mounting holes. In this case, there is no change in the shape of the mounting hole.

  However, when the glass plate is bent tempered glass, the glass plate is subjected to a bending process after an attachment hole is provided. In this case, since the attachment hole is stretched along the bent shape, the attachment hole gradually changes from a largely deformed portion to a hardly deformed portion. Therefore, compared with the case where an attachment hole is provided in a flat tempered glass board, an attachment hole becomes the shape (refer FIG. 1) which deform | transformed complicatedly. Therefore, when the support metal fitting is inserted into the deformed mounting hole and the glass plate is tightened, the glass plate is easily damaged due to the deformed mounting hole shape.

  For example, the support structure described in Patent Document 1 is a flat glass plate in which a hard material such as an aluminum material or a tin alloy is used as an interposition member interposed in mounting holes provided at four corners of a plate-like body. Suitable for supporting. On the other hand, when using the support structure to support a bent tempered glass plate having a deformed mounting hole, the followability of the interposed member with respect to the mounting hole is poor, and a local concentrated load is applied to a part of the mounting hole. There is a problem that the glass plate is damaged.

  Further, the support structure described in Patent Document 2 supports adjacent panels with an arbitrary bending angle, and allows the support bolts supporting the panels to be freely lowered at the nut fastening portion, thereby forming a curved surface. It is the support structure which made it possible to form the wall surface. However, since a flat panel is used, it is impossible to obtain a wall body having a smooth curved surface as a whole, and there is a problem in terms of design.

  The present invention has been made in view of the above problems, and in the case of constructing a bending tempered glass plate by the DPG method, it prevents a concentrated load from being locally applied to the mounting hole deformed by bending, An object of the present invention is to provide a support for a bending-strengthened glass sheet that can prevent breakage of the glass sheet.

  The present invention is a bending tempered glass support for supporting a bending tempered glass plate through an attachment hole provided at a corner of the bending tempered glass plate, the fastening member for inserting the mounting hole, and the tightening member A fastening nut that is fastened to the fastening member and sandwiches the bending-strengthened glass plate with the fastening member, and an interposed member that is interposed between the fastening member and the mounting hole, The mounting hole has a large-diameter portion that opens to the convex surface of the bending-strengthened glass plate, and a small-diameter portion that opens to the concave surface of the bending-tempered glass plate and has a smaller diameter than the large-diameter portion. The interposed member includes a first interposed member that is at least partially interposed between the large-diameter portion and the tightening member, and between the small-diameter portion and the tightening member. A second interposed member to be interposed, and at least a contact surface of the first interposed member with the mounting hole is formed of an elastic material. And features.

  Further, the present invention is characterized in that the first interposed member has a two-layer structure including an elastic material layer that contacts the mounting hole and a metal material layer that contacts the fastening member.

  Further, the present invention is characterized in that a hook-shaped protrusion is provided at an end portion which is a minimum outer diameter portion of the metal material layer.

  Further, the present invention is characterized in that the entire end face of the first interposed member facing the opening of the mounting hole is composed of the elastic material layer.

  Further, the present invention is provided between the first interposed member and the second interposed member in contact with the small diameter enlarged portion of the mounting hole and the tightening member, and is made of an elastic material. A water-stopping O-ring is further provided.

  Moreover, this invention is comprised with the bending strengthening glass plate supported by the said support tool, The handrail structure characterized by the above-mentioned.

  According to the support of the present invention, the mounting hole and the tightening member of the bending strengthened glass plate are locally concentrated on the mounting hole deformed by the bending process because the surface contact is made through the first interposing member which is an elastic material. It is possible to prevent the load from being applied and to prevent the bending strengthened glass plate from being damaged.

Sectional drawing (A) and front view (B) of the attachment hole of a bending strengthening glass plate. The longitudinal cross-sectional view of the support tool which concerns on the 1st Embodiment of this invention. The longitudinal cross-sectional view of the support tool which concerns on the 2nd Embodiment of this invention. The longitudinal cross-sectional view of the support tool which concerns on the 3rd Embodiment of this invention. The longitudinal cross-sectional view of the support tool which concerns on the 4th Embodiment of this invention. The perspective view which shows the state which attaches the support tool of this invention to a support metal fitting. The construction example of the bending tempered glass board by the support of this invention.

  In the present invention, a glass plate is formed by a fastening member 4 inserted from one end side of an attachment hole 2 provided at the four corners of the glass plate 1 through interposing members 3 and 14 and a fastening nut 9 on the other end side. 1 is a support 100 for tightening and clamping 1. In particular, the structure of the first interposing member 3 interposed between the large-diameter portion 2a of the mounting hole 2 and the tightening member 4 is improved. The glass plate 1 supported by the support tool 100 of the present invention is manufactured by processing the mounting hole 2 and then bending and further strengthening it. Hereinafter, a glass plate that has been tempered after bending is referred to as “bending tempered glass”.

  As shown in FIG. 7, the present invention is a support device 100 for bending-strengthened glass plate 1 used when arranging a plurality of rectangular bent-strengthening glass plates 1 in a row or vertically and horizontally like a grid. is there. The bending-strengthened glass plate 1 is used as, for example, a curved outer wall of a building or a glass plate handrail of a spiral staircase.

  First, the shape of the mounting holes 2 provided at the four corners of the bending strengthened glass plate 1 will be described. The mounting hole 2 opens in a large-diameter portion 2a that opens to the convex surface that is the outer surface of the bending-strengthened glass plate 1 and a concave surface that is the inner surface of the bending-strengthened glass plate 1, and has a smaller diameter than the large-diameter portion 2a. And a small-diameter portion 2b. The large-diameter portion 2a is formed in a tapered shape that gradually decreases in diameter from the opening end toward the small-diameter portion 2b. The mounting hole 2 is deformed along with bending which is one of the manufacturing steps of the bending strengthened glass sheet 1. The shape of the deformed mounting hole 2 will be described with reference to FIG. 1 in comparison with a mounting hole provided in a flat glass plate that has been conventionally applied to the DPG method.

  FIG. 1 illustrates the shape of the mounting hole 2 of the bending-strengthened glass plate 1 after drilling the mounting hole 2 in the glass plate and then bending and further strengthening the processing. FIG. FIG. 1B is a front view of the mounting hole 2 as viewed from the maximum diameter side of the large-diameter portion 2a. Moreover, the attachment hole 2 'provided in the flat glass plate 1' is shown by a broken line.

  As shown in FIG. 1, when the mounting hole 2 is drilled and then bent in the glass plate, the shape of the mounting hole 2 is deformed unlike the mounting hole 2 ′ provided in the flat glass plate 1 ′. It becomes a shape. Specifically, as shown in FIG. 1 (A), the large-diameter portion 2a and the small-diameter portion 2b of the mounting hole 2 of the bending-strengthened glass plate 1 are stretched in the bending direction and become stretched and deformed. .

  Further, as shown in FIG. 1B, the mounting hole 2 of the bending strengthened glass plate 1 is substantially elliptical when viewed from the maximum diameter side of the large diameter enlarged portion 2a, and the small diameter enlarged portion 2b from this one end side. The shape of the mounting hole 2 changes from a substantially elliptical shape to a substantially circular shape.

  As can be seen from FIGS. 1 (A) and 1 (B), the shape of the inner peripheral surface of the small-diameter enlarged portion 2b of the bending-strengthened glass sheet 1 is the straight small-diameter diameter of the mounting hole 2 'of the flat glass sheet 1'. It is slightly tapered as compared with the portion 2b ′. Therefore, the position of the intersection 2c between the large diameter enlarged portion 2a and the small diameter enlarged portion 2b of the bending strengthened glass plate 1 varies depending on the radius of curvature of the bending strengthened glass plate 1.

  Therefore, when using the thing made from metals, such as an aluminum material and a tin alloy, as the 1st interposed member 3 interposed between the attachment hole 2 and the clamping member 4, the shape of the 1st interposed member 3 is used. It is difficult to accurately match the shape of the mounting hole 2 of the bending strengthened glass sheet 1 having various radii of curvature.

  Therefore, when the first interposing member 3 provided in the mounting hole 2 of the bending strengthened glass plate 1 is made of a metal such as an aluminum material that is not sufficiently followable with respect to the deformation of the mounting hole 2, the mounting hole 2, Further, an excessive concentrated load is easily applied to the intersecting portion 2c, and the bending strengthened glass plate 1 may be damaged even by a small external force.

  In addition, when a hard material such as aluminum is used as the first interposed member 3 provided in the large-diameter portion 2a of the mounting hole 2 having such a complicated shape, the fitting into the mounting hole 2 is deteriorated, and the appearance is reduced. There is also a problem that the above looks worse.

  Hereinafter, the support tool 100 of the bending strengthened glass sheet 1 according to the first embodiment of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments, and it is obvious that various modifications are made within the scope of the technical idea. For example, in the embodiment of the present invention, the support structure disclosed in Japanese Patent Application Laid-Open No. 2003-176591 by the present applicant is adopted, but for example, Japanese Patent Application Laid-Open No. 2000-110283 and Japanese Patent Application Laid-Open No. 9-291629. Other known DPG methods such as a gazette can also be applied.

<First Embodiment>
As shown in FIG. 2, the support 100 according to the first embodiment has the interposition members 3 and 14 inscribed in the attachment holes 2 provided at the four corners of the bending strengthened glass plate 1, 2 is inserted into the mounting hole 2 from one end side of the mounting hole 2, and a tightening nut 9 is fastened to the tightening member 4 from the other end side to tighten the bending strengthened glass plate 1. It is something to pinch.

  The support tool 100 includes a cylindrical portion 4b that passes through the mounting hole 2 and a substantially bottomed cylindrical fastening member 4 having a head portion 4a that is larger in diameter than the cylindrical portion 4b, and a cylindrical portion 4b. A tightening nut 9 that is screwed into the end portion to clamp and clamp the bent tempered glass plate 1 and a head 5a connected to the inside of the tubular portion 4b and the tubular portion 4b. A support bolt 5 having a bolt portion 5c to be screwed through a support fitting, a ball 7 which is rotatably slidable between a bottom portion of the cylindrical portion 4b and a head portion 5a of the support bolt 5, and a cylindrical shape A presser nut 6 is provided which is screwed into the inner periphery of the portion 4 b and rotatably connects the fastening member 4 and the head 5 a of the support bolt 5 via a ball 7.

  The head 4 a of the tightening member 4 is formed in a tapered shape corresponding to the shape of the large diameter enlarged portion 2 a of the mounting hole 2. Specifically, the end surface that is flush with the convex surface of the bent tempered glass plate 1 has a maximum outer diameter, and the outer diameter decreases toward the tubular portion 4b. The maximum outer diameter of the head 4 a is set to be larger than the inner diameter of the small-diameter portion 2 b of the mounting hole 2. Thereby, the bending tempered glass plate 1 can be locked by the head 4a. Moreover, the end of the cylindrical part 4b is obstruct | occluded by the head 4a, and the bottom part of the cylindrical part 4b is formed. The cylindrical part 4b has a cylindrical hollow part on the inner side, and has an outer diameter and an inner diameter substantially uniform. An end portion of the cylindrical portion 4 b extends to the outside of the mounting hole 2. A male screw is formed on the outer periphery of the end of the cylindrical portion 4b, and a tightening nut 9 is screwed to the male screw and fastened. A female screw is formed on the inner periphery of the end of the cylindrical portion 4b, and a presser nut 6 is screwed to the female screw and fastened. On the end surface of the cylindrical portion 4b, a concave groove portion 4d for tightening is provided.

  Between the head part 4a of the fastening member 4 and the large-diameter part 2a of the mounting hole 2, there is a taper shape matching the outer peripheral surface shape of the head part 4a and the inner peripheral surface form of the large-diameter part 2a. 1 Interposing member 3 is interposed. On the other hand, an annular second interposed member 14 is interposed between the cylindrical portion 4 b of the tightening member 4 and the small diameter enlarged portion 2 b of the mounting hole 2.

  Further, a water-stopping O-ring 10 made of an elastic material such as elastic rubber is interposed between the first interposing member 3 and the second interposing member 14 so that the cylindrical portion 4b of the tightening member 4 and the mounting hole 2 are small. You may make it contact | abut with the enlarged diameter part 2b. When the outer peripheral portion of the water-stopping O-ring 10 is brought into line contact with the inner peripheral surface of the small diameter enlarged portion 2b and the outer peripheral surface of the tubular portion 4b, water can be effectively stopped.

  The countersunk bolt-like tightening member 4 is inserted into the mounting hole 2 from the large-diameter portion 2a side on one end side so as to be in contact with the inner surface of the first interposed member 3 and the second interposed member 14. Then, from the other end side, a tightening nut 9 is screwed onto the outer periphery of the end of the tubular portion 4b of the tightening member 4 via a disk-shaped cushioning material 11 made of a resin such as ethylene-propylene-diene rubber (EPDM). Combine. Thereby, the bending strengthened glass plate 1 is clamped and clamped between the head 4 a of the clamping member 4 and the clamping nut 9.

  The head 5a of the support bolt 5 is formed in a truncated spherical shape and is disposed in the cavity of the cylindrical portion 4b. The head 5a is provided with a recess 5e that opens toward the bottom surface of the cylindrical portion 4b and that accommodates a part of the sphere 7. The recess 5e is formed in a shape in which the sphere 7 can rotate inside. On the bottom surface of the cylindrical portion 4b, a recessed portion 4c that is recessed in a curved shape into which the outer peripheral surface of the sphere 7 is fitted is formed. Thus, the sphere 7 is provided between the recess 5e and the recess 4c so as to be freely slidable. As a result, even when a load such as wind pressure is applied to the bent tempered glass plate 1 from the outside, the tightening member 4 tilts and rotates with respect to the support bolt 5 via the ball 7, so that the tempered glass plate 1 is supported well. It becomes possible to do.

  The presser nut 6 has a substantially cylindrical shape, and a threaded portion formed on the outer periphery thereof is screwed into an inner peripheral female screw of the cylindrical portion 4b and fastened in a hollow portion of the cylindrical portion 4b. Thereby, the spherical surface portion 6 a formed on the inner peripheral end portion of the presser nut 6 comes into contact with the outer peripheral surface of the head portion 5 a of the support bolt 5. In this way, the presser nut 6 presses the support bolt 5 against the tightening member 4. The pressing force applied to the support bolt 5 by the presser nut 6 is set to such a size that the ball 7 can rotate and slide between the recess 5e and the recess 4c.

  A tapered portion 6b is formed on the inner periphery of the presser nut 6 so as to be connected to the spherical surface portion 6a. The tapered portion 6b is formed so that the inner diameter increases toward the opening. A concave groove 6c is formed at the end of the tapered portion 6b.

  The support bolt 5 is formed with a narrow diameter constricted portion 5b between the head portion 5a and the bolt portion 5c as compared with other portions. A gap exists between the inner periphery of the presser nut 6 and the outer periphery of the support bolt 5 due to the tapered portion 6b and the constricted portion 5b. By this gap, the tightening member 4 can swing with respect to the support bolt 5.

  A seal ring 22 is provided between the tapered portion 6 b of the presser nut 6 and the constricted portion 5 b of the support bolt 5. The seal ring 22 prevents dust from entering the cylindrical portion 4b. Since the seal ring 22 is an elastic material, the tilting of the tightening member 4 with respect to the support bolt 5 is not hindered. Further, if a tube-like elastic rubber is used as the seal ring 22, the degree of freedom of tilting of the tightening member 4 with respect to the support bolt 5 is increased.

  The bent tempered glass plate 1 is disposed so that the vertical plane including the center of gravity coincides with the vertical plane including the center of the sphere 7. Therefore, even when the bending strengthened glass sheet 1 is tilted by receiving a load such as wind pressure from the outside, the bending strengthened glass sheet 1 returns to its original position by its own weight if the external load is released. Therefore, it does not take time to manage the position of the bent tempered glass sheet.

  The screwing operation of the tightening member 4 and the tightening nut 9 is performed by rotating the tightening nut 9 in a state where the tool is inserted and fixed in the concave groove portion 4d provided at the indoor front end of the tightening member 4. Tightened. Similarly, the screwing operation of the clamping member 4 and the presser nut 6 is performed by inserting the tool into the concave groove part 6c of the presser nut 6 and rotating the tool with the tool inserted into the concave groove part 4d of the clamping member 4 and rotating. It is allowed to tighten. Thus, the tightening operation can be performed only on the indoor side.

  The first intervention member 3 is made of EPDM, which is an elastic material, and has a shape that matches the head 4a and the large-diameter portion 2a. As other usable elastic materials, elastic materials having good weather resistance such as neoprene rubber, silicon rubber, viton rubber, and urethane rubber can be used.

  Since the first interposing member 3 is made of an elastic material such as EPDM, the contact between the mounting hole 2 of the bending strengthened glass plate 1 and the tightening member 4 can be a surface contact instead of a point contact. The force acting on the mounting hole 2 is dispersed by the tilting of the glass plate 1. Therefore, the stress applied to the mounting hole 2 can be reduced and the bending strengthened glass plate 1 can be prevented from being damaged.

  As shown in FIG. 2, the first intervention member 3 is formed between the head portion 4 a of the fastening member 4 and the large diameter enlarged portion 2 a of the mounting hole 2, and the cylindrical portion 4 b of the fastening member 4. The mounting hole 2 may be interposed between the small-diameter portion 2b and between the head 4a of the fastening member 4 and the large-diameter portion 2a of the mounting hole 2. You may disguise. That is, it is only necessary that at least a part of the first interposing member 3 is interposed between the head 4 a of the tightening member 4 and the large-diameter portion 2 a of the mounting hole 2.

  Further, the second interposed member 14 is interposed between the small diameter enlarged portion 2b of the mounting hole 2 and the cylindrical portion 4b of the tightening member 4, so that the bending strengthened glass plate 1 is sheared and bent in the bending direction. Even when the external force acts and the first intervention member 3 is deformed, the contact between the small-diameter expanded portion 2b and the cylindrical portion 4b can be prevented. As the material of the second intervention member 14, a metal such as aluminum or a resin such as polycarbonate is used. However, since polycarbonate may be damaged when an excessive load is applied, it is preferable to use a metal such as aluminum that has a certain degree of hardness and is less likely to be damaged. Furthermore, an aluminum material is particularly preferable because it has a thermal expansion coefficient close to that of a glass plate as compared with polycarbonate, and therefore the load on the mounting hole 2 caused by the difference in thermal expansion coefficient is extremely small.

  The buffer material 11 is made of a synthetic resin such as polytetrafluoroethylene (PTFE).

  The water-stopping O-ring 10 is made of EPDM. Instead, an elastic body having good weather resistance such as neoprene rubber, silicone rubber, viton rubber, urethane rubber, or the like may be used.

  Further, the tightening member 4, the tightening nut 9, the presser nut 6, the support bolt 5, the ball 7 and the like are made of rust-free metal such as SUS. Instead, an SS material that has been subjected to a rust-proof coating process or a plating process may be used.

  As shown in FIG. 7, a plurality of bending tempered glass plates 1 are arranged vertically and horizontally, and the four bending tempered glass plates 1 adjacent to each other are clamped and supported through attachment holes 2 provided at the corners. For example, the support bolt 5 of the support tool 100 is inserted into four fastening holes 31 provided at the tip of the support arm 32 of the support fitting 30 as shown in FIG. And if the rod 33 extended from the center of the support metal fitting 30 is fixed to a structural housing (not shown), the glass screen 40 shown in FIG. 7 can be formed. In FIG. 6, the support metal fitting 30 is shown in which the support arm 32 extends in an X shape and is supported at four points. However, instead of this, an H-shaped four-point support, V-shaped, I-shaped two-point support, or I-shaped one-point support arm 32 may be used.

  Moreover, it is also possible to arrange a plurality of bending-strengthened glass plates 1 on the left and right and use them as glass plate handrails provided on a spiral staircase or the like.

  On the convex surface side of the fastening member 4, at least one screw hole 15 for attaching an accessory such as a scaffold, lighting, a signboard, or an ornament is provided. When necessary, these accessory holes are attached using the screw holes 15, and when not necessary, the screw holes 15 may be closed with bolts or the like.

  A fixing screw (not shown) may be fastened and fixed to the outer peripheral side surface of the tightening nut 9 as a loosening prevention.

  Since the large-diameter portion 2a of the mounting hole 2 has a tapered shape, a part of the vertical load applied to the mounting hole 2 due to its own weight or the like of the bending strengthened glass plate 1 can be dispersed in an oblique direction by the large-diameter portion 2a. The strength of the mounting hole 2 of the bending strengthened glass plate 1 can be improved.

  When the bending tempered glass plate 1 is bent by a load such as wind pressure acting on the glass screen 40 shown in FIG. 7 composed of the bent tempered glass plate 1 suspended by using the support fitting 30 as shown in FIG. The fastening member 4 of the support tool 100 rotates about the sphere 7 with respect to the support bolt 5. This is because the support bolt 5 is pressed toward the fastening member 4 by the presser nut 6 that contacts the outer peripheral surface of the head 5a.

  The moment generated by bending applied to the glass plate does not act on the mounting hole 2 of the bending tempered glass plate 1, and only a vertical load due to the weight of the bending tempered glass plate 1 acts.

  When the thickness of the bending strengthened glass plate 1 is changed, it is only necessary to change the thickness of the head 4a of the fastening member 4.

  Moreover, when the curvature radius of the bending strengthened glass plate 1 is large, it is possible to prevent the concentrated load from being applied to the intersecting portion 2c by increasing the thickness of the first interposed member 3. What is necessary is just to change the thickness of the 1st intervention member 3 corresponding to a curvature radius change suitably.

  According to the above 1st Embodiment, there exists the effect shown below.

  Since the first interposed member 3 interposed between the large-diameter portion 2a of the mounting hole 2 and the head portion 4a of the fastening member 4 is formed of an elastic material, it is locally generated in the mounting hole 2. Can be prevented, and the breakage of the bending strengthened glass plate 1 can be prevented.

  Moreover, since the 1st intervention member 3 is formed with an elastic material, the followability with respect to the attachment hole 2 deform | transformed into the complicated substantially elliptical shape with the bending process of the glass plate is good, and the attachment hole 2 It doesn't stick out. Therefore, it becomes possible to provide the support tool 100 of the bending-strengthened glass plate 1 having a good appearance.

  Further, when the bending strengthened glass plate 1 is used as an outer wall, there is a risk of intrusion of rainwater or the like, and therefore a water stop O-ring 10 is provided between the first interposed member 3 and the second interposed member 14. And can prevent the intrusion of rainwater.

<Second Embodiment>
With reference to FIG. 3, the support 200 which concerns on 2nd Embodiment is demonstrated. The support 200 is a first embodiment in that the first intervention member 3 has a two-layer structure of a portion formed of an elastic material such as rubber and a portion formed of a metal material such as aluminum. Is different. Below, it demonstrates centering on a different point from the said 1st Embodiment, and attaches | subjects the same code | symbol to the structure which corresponds to 1st Embodiment, and abbreviate | omits description.

  The first intervention member 3 includes an elastic material layer 3a such as rubber that comes into contact with the large-diameter portion 2a of the mounting hole 2 and a metal material layer 3b such as aluminum material that comes into contact with the head 4a of the fastening member 4. It is a two-layer structure. Thus, the first interposing member 3 has at least a contact surface with the large diameter enlarged portion 2a formed of an elastic material.

  The metal material layer 3b is for sufficiently fixing the water-stopping O-ring 10 provided between the first interposed member 3 and the second interposed member 14. From this point, it is particularly preferable that the thickness d1 of the metal material layer 3b is 1/2 or more of the wire diameter (thickness) d3 of the water-stopping O-ring 10. Here, the wire diameter d3 of the water-stopping O-ring 10 is an interval between the small diameter enlarged portion 2b of the mounting hole 2 and the cylindrical portion 4b of the fastening member 4 as shown in FIG.

  The first intervention member 3 is manufactured by baking and bonding an elastic material such as rubber to a metal material layer 3b such as an aluminum material.

  According to the second embodiment described above, the following effects are obtained.

  Since the first intervention member 3 has a two-layer structure of an elastic material layer 3a that abuts on the large-diameter portion 2a of the mounting hole 2 and a metal material layer 3b that abuts on the head 4a of the fastening member 4, The water-stopping O-ring 10 provided between the first interposing member 3 and the second interposing member 14 can be sufficiently brought into close contact with the mounting hole 2 and the tightening member 4 to prevent intrusion of rainwater or the like. Can be prevented.

<Third Embodiment>
With reference to FIG. 4, the support tool 300 which concerns on 3rd Embodiment is demonstrated. The third embodiment is a modification of the second embodiment, and a hook-shaped protrusion 3c is provided at the end that becomes the minimum outer diameter portion of the metal material layer 3b constituting the first interposing member 3. It is done. In addition, a stepped portion that engages with the protruding portion 3c of the metal material layer 3b is formed at the end of the elastic material layer 3a. Instead of providing a step in the elastic material layer 3a, an elastic material such as rubber may be filled between the protrusion 3c and the inner periphery of the small diameter enlarged portion 2b.

  By providing the protrusion 3c on the metal material layer 3b, the water-stopping O-ring 10 provided between the first interposed member 3 and the second interposed member 14 can be sufficiently fixed, and the elastic material layer 3a and the metal material layer 3b can be prevented from shifting.

  In order to sufficiently fix the water-stopping O-ring 10, it is particularly preferable that the height d2 of the protrusion 3c is 1/2 or more of the wire diameter (thickness) d3 of the water-stopping O-ring 10. Here, the wire diameter d3 of the water-stopping O-ring 10 is the distance between the small-diameter enlarged portion 2b of the mounting hole 2 and the cylindrical portion 4b of the fastening member 4.

  According to the third embodiment described above, the water-stopping O-ring 10 is more firmly attached to the mounting hole 2 and the tightening member 4 than in the case where the first interposing member 3 has a two-layer structure. It can be sufficiently adhered.

<Fourth embodiment>
With reference to FIG. 5, the support 400 which concerns on 4th Embodiment is demonstrated. The fourth embodiment is a modification of the second embodiment, and the entire end surface 2d of the first interposing member 3 facing the opening of the large-diameter portion 2a of the mounting hole 2 is an elastic material layer 3a. Composed.

  According to the fourth embodiment described above, when the bending strengthened glass plate 1 is viewed from the front (convex surface side), the mounting hole 2 has a triple structure of the metal material layer 3b, the elastic material layer 3a, and the tightening member 4. Instead, the elastic material layer 3a and the fastening member 4 are two layers, so that the appearance from the front is good. That is, design properties can be improved.

  The present invention can be used as a support for a bending strengthened glass sheet.

100, 200, 300, 400 Supporting tool 1 Bending tempered glass plate 2 Mounting hole 2a Large-diameter portion 2b Small-diameter portion 2c Intersection 3 First interposing member 3a Elastic material layer 3b Metal material layer 3c Protruding portion 4 Tightening Member 4 a Head 4 b Cylindrical part 4 c Recessed part 4 d Concave groove part 5 Support bolt 5 a Head part 5 b Body part 5 c Bolt part 5 e Concave part 6 Presser nut 6 b Taper part 6 c Concave groove part 7 Ball part 9 Clamping nut 1 0 O-ring 1 for water stop 1 1 Cushioning material 1 4 2nd intervention member 1 5 Screw hole 2 2 Seal ring 3 0 Support metal fitting 3 1 Fastening hole 3 2 Arm 4 0 Glass screen

Claims (6)

Bending tempered glass support that supports the bending tempered glass plate through mounting holes provided in the corners of the bent tempered glass plate,
A tightening member that is inserted through the mounting hole;
A tightening nut that is fastened to the tightening member and sandwiches a bending-strengthened glass plate with the tightening member;
An interposed member interposed between the fastening member and the mounting hole,
The mounting hole is
A large-diameter expanded portion that opens to the convex surface of the bending-strengthened glass plate;
Open to the concave surface of the bending tempered glass plate, and having a small diameter enlarged portion smaller than the large diameter enlarged portion,
The intervention member is
A first interposed member at least partially interposed between the large-diameter enlarged portion and the fastening member;
A second interposed member interposed between the small diameter enlarged portion and the fastening member,
The first interposing member has at least a contact surface with the mounting hole formed of an elastic material.   2. The support according to claim 1, wherein the first interposing member has a two-layer structure including an elastic material layer that abuts on the attachment hole and a metal material layer that abuts on the fastening member. .   The support according to claim 2, wherein a hook-shaped protrusion is provided at an end that is a minimum outer diameter portion of the metal material layer.   4. The support according to claim 2, wherein the entire end surface of the first interposing member facing the opening of the attachment hole is formed of the elastic material layer. 5.   A water-stopping O-ring made of an elastic material is provided between the first interposed member and the second interposed member in contact with the small-diameter enlarged portion of the mounting hole and the fastening member. The support according to any one of claims 1 to 4, further comprising:   A handrail structure comprising a bent tempered glass plate supported by the support according to any one of claims 1 to 5.

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