JP2011042951A - Anchor fitting for mounting external facing plate on building frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To employ a two-piece structure and structurally prevent the loss of an edge of an anchoring groove of a ceramic plate. <P>SOLUTION: This anchor fitting includes: one piece 4 for fixing the ceramic plate, which includes a pair of claws 8 hooked on the pair of parallel anchoring grooves 3b on the backside 3a of the ceramic plate 3, and a flat base plate 9 brought into contact with the backside 3a of the ceramic plate 3 between the claws 8, and which is mounted on the side of the ceramic plate 3 by hooking the claw 8 on the anchoring groove 3b; a center piece 2 which is placed on the piece 4 and mounted on the side of the building frame; and a fastening implement 5 for connecting the pieces 4 and the center piece 2 together and fixing the piece 4 to the ceramic plate 3 by deforming it. The base plate 9 of the piece 4 includes a slit 10 which divides the piece 4 into a first area 9a including the one claw 8 and a second area 9b including the other claw 8. The first and second areas 9a and 9b are connected together by means of connecting bridges 11 which are provided at both the ends of the slit 10, respectively; and the piece 4 is integrated. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an anchor hardware for attaching an exterior plate such as a ceramic plate (tile) to the surface of a building frame. More specifically, in the present invention, two parallel fixing grooves are provided on the porcelain plate side to form a (convex shape) between them, and nails on both sides are inserted into the fixing groove to sandwich them. It relates to anchor hardware to be fixed.

  As a method of attaching an exterior plate or a ceramic plate to the outer wall of the building frame, there is a method of attaching it to the building frame using dedicated hardware. In this method, two parallel fixing grooves are formed on the back of the porcelain plate, anchor metal fittings with claws hooked on the fixing groove are attached to the porcelain plate side, and a part of the anchor metal fittings are attached to the body frame on the building frame side. Alternatively, the ceramic plate is fixed to the building frame by attaching it to the foundation.

  The anchor metal fittings used in this construction method are a pair of left and right centerpieces that are attached to the building frame side and are fixed on both sides of the centerpiece by hooking nails into the two fixing grooves on the back of the ceramic plate. An anchor hardware (Patent Document 1) composed of a side piece and a single screw that connects and integrates these three independent parts is used. The anchor hardware is attached to the porcelain plate by tightening the screws and pulling the side pieces toward each other with the claws of the side piece hooked on the two fixing grooves on the back surface of the porcelain plate. Then, the ceramic plate is fixed to the building frame by attaching the center piece to the trunk edge or the base of the center piece mounting portion supported so as to be swingable in parallel with the ceramic plate on the screw supported between the pair of side pieces. . Due to this support structure, it is provided to prevent the shaking of the building frame from being transmitted to the ceramic plate side by the movement of the centerpiece against shaking such as an earthquake. In addition, since the center piece is supported by both side pieces with little or no gap between the center piece and the back surface of the ceramic plate in the wall surface direction, large backlash is rarely generated.

  Here, in order to ensure strength, each piece is provided with a groove-shaped skeleton having a pair of vertical walls orthogonal to the ceramic plate and a horizontal wall parallel to the ceramic plate connecting the vertical walls. And in the pair of side pieces, the lower end of the vertical wall outside each skeleton part is once bent outward to form a horizontal wall parallel to the porcelain plate, and further, the tip of the horizontal wall is bent so as to be folded downward. A reshaped nail is formed. Then, by inserting the claw of the side piece into each of the pair of fixing grooves and pulling them together by tightening the screws, an overhang portion of a certain edge formed by the fixing groove with the horizontal wall and the claw forming a rectangular shape The side piece is fixed to the back of the ceramic plate.

No. 06-9217

  However, the conventional anchor hardware is a three-piece structure consisting of a center piece and a pair of side pieces sandwiching the center piece, and has a structure in which one screw is passed through a slightly larger through-hole, so each is independent. Since the piece or member of the plate rotates around the screw or swings in the axial plane, the left and right side pieces are hooked with the claws into a pair of parallel fixing grooves on the porcelain plate side, and then pulled together by tightening the screws. In the case of fixing to the ceramic plate by narrowing the interval between the left and right side pieces, there is a problem that twisting and distortion between the left and right side pieces are likely to occur, and the fixing position and fixing posture to the ceramic plate are not stable. When the anchor hardware cannot be accurately positioned with respect to the porcelain plate, the screws connecting them are inclined in the horizontal plane or the vertical plane, and the angle of the center piece attached to the building frame side is pulled down to the building frame. There is a construction problem that the angle of the porcelain plate slightly shifts. Furthermore, since the clearance between the center piece and the back surface of the ceramic plate is not constant, there is a possibility that the rattling of the ceramic plate with respect to the center piece attached to the building frame side becomes large.

  In addition, since the three parts of the center piece and the pair of side pieces are connected by simply passing through one screw, they are rattled and the directions are scattered. There is a problem that work is troublesome because orientation and alignment are required. In addition, since the number of parts increases, there is a problem that the manufacturing cost and the management cost are high.

  Further, since the plate is repeatedly folded in the opposite direction and bent into a reshape to form the nail, it is not possible to obtain an acutely curved corner. On the other hand, since the edge of the groove opened in the ceramic plate is ground with a grinder rotating grindstone or the like, it becomes a sharp knife edge. For this reason, when a metal nail is hooked and the screw is tightened, there is a problem that the corner portion of the curved surface of the base of the nail hits the edge on the ceramic plate side and the edge of the fixing groove of the ceramic plate is missing.

  Further, in order to stabilize the degree of catching on the pair of fixing grooves on the ceramic plate side while pulling the left and right side pieces together by tightening screws, it is desirable to apply a certain tightening force. For this reason, conventionally, it is necessary to perform torque management by using a torque wrench during tightening.

  An object of the present invention is to provide an anchor fitting having a two-piece structure. It is another object of the present invention to provide an anchor fitting that can prevent the edge of the fixing groove of the ceramic plate from being lost.

  In order to achieve such an object, the anchor hardware of the present invention has a pair of claws hooked to a pair of parallel fixing grooves on the back surface of the porcelain plate and a flat substrate in contact with the back surface of the porcelain plate between the claws. One piece for fixing the ceramic plate attached to the ceramic plate side by hooking the nail into the fixing groove, a center piece placed on the ceramic plate fixing piece and attached to the building frame side, a piece for fixing the ceramic plate and the center piece And a fastener for deforming and fixing the ceramic plate fixing piece to the ceramic plate, and locally deforming the ceramic plate fixing piece by tightening the fastener between a pair of nails of the ceramic plate fixing piece Thus, a plastically deformable portion that allows adjustment of the distance between the pair of claws is provided.

  Here, the plastic deformation part is provided at both ends of the slit, which divides the substrate of the ceramic plate fixing piece into a first region including one nail and a second region including the other nail. It is preferable that the porcelain plate fixing piece is integrated by connecting the first and second regions. Each of the plastic deformation portions includes a pair of vertical walls orthogonal to the ceramic plate and a groove-shaped skeleton portion having a horizontal wall parallel to the ceramic plate connecting the vertical walls to the ceramic plate fixing pieces at both ends. In the horizontal wall of the skeleton part, leaving the central part of the horizontal wall, slits are made from the front and rear ends in the direction orthogonal to the fastening direction of the fastener, and the remaining horizontal wall part is configured as a connection bridge. good. Furthermore, the plastic deformation part provided in the substrate and the plastic deformation part provided in the skeleton part may be used in combination.

  According to a fourth aspect of the present invention, in the anchor hardware according to any one of the first to third aspects, the piece for fixing the ceramic plate includes a pair of vertical walls perpendicular to the ceramic plate and the vertical walls. Each is provided with a groove-shaped skeleton portion having a porcelain plate to be connected and a parallel horizontal wall at both ends, and the lower end edge of the vertical wall outside the skeleton portion is bent inward at an angle so as to fit into the fixing groove of the porcelain plate. The claw is formed continuously with the vertical wall.

  According to a fifth aspect of the present invention, in the anchor hardware according to any one of the first to fourth aspects, the four corners of the porcelain plate fixing piece protrude outward from the claws and have the same height as the substrate. It is characterized in that a collar serving as a flat surface is provided.

  Further, the invention according to claim 6 is the anchor hardware according to any one of claims 1 to 5, wherein the fastener is composed of a screw and a nut, and the nut has a larger diameter than the screw. The outer diameter portion of the head is fitted to a wrench, and the female screw portion is provided with a screw hole into which the screw is screwed. And when the torque exceeding a predetermined torque is applied through the head, the bent portion breaks.

  According to the anchor metal object of the first aspect, the plastic deformation portion provided on the ceramic plate fixing piece is crushed by tightening the fastener so that the nail interval can be adjusted. The ceramic plate can be supported by sandwiching the fixing groove.

  Moreover, according to the anchor hardware of the present invention, since it has a two-piece structure of a ceramic plate fixing piece and a center piece placed thereon, the manufacturing cost and the management cost can be reduced by reducing the number of parts. Can do. In addition, since the center piece is placed on the ceramic plate fixing piece and connected with a fastener, the center piece is placed in a non-rotatable manner in the vertical direction (around the screw shaft). Compared with a moving three-piece anchor metal, the anchor metal can be easily handled during the fixing operation to the ceramic plate, the mounting operation is simplified, and the centerpiece is less likely to rattle in the vertical direction.

  Further, the ceramic plate fixing piece allows the pair of nails to be fitted into the pair of fixing grooves of the ceramic plate while keeping the parallel to the rear surface of the ceramic plate by bringing the substrate between the pair of claws into contact with the back surface of the ceramic plate. . Therefore, by adjusting the distance between the nail of the ceramic plate fixing piece by tightening the fastener, the gap between the fixing grooves of the ceramic plate can be sandwiched between the pair of nails and the substrate, and the stable depth It is possible to prevent the ceramic plate from falling after construction by fixing with. In addition, since there is no bias in the degree of application between the left and right claws and the fixing groove, it is possible to prevent a defect caused by concentration of force on the overhang portion of one fixing groove. In addition, since the center piece is placed on the substrate of the ceramic plate fixing piece and the center piece and the ceramic plate fixing piece are kept at a certain height, the height of the ceramic plate attached to the building frame via the center piece is high. The finish of the wall made of ceramic plates can be improved.

  According to the anchor metal object of claim 2, a slit for dividing the substrate of the ceramic plate fixing piece into a first region including one nail and a second region including the other nail, and both ends of the slit Since the plastic deformation part is constituted by the connecting bridge provided on the plate, the first and second regions are connected and the porcelain plate fixing piece is integrated, the width of the substrate is deformed along the porcelain plate. It is adjusted, and the piece for fixing a ceramic plate having a one-piece structure can be fixed while being held parallel to the ceramic plate.

  Further, according to the anchor hardware according to claim 3, wherein a plastic deformation portion is formed in which a horizontal wall with a central portion left is formed by connecting a slit to a horizontal wall of a skeleton portion provided at both ends of a ceramic plate fixing piece. The width of the ceramic plate fixing piece can be adjusted only by the deformation of the skeleton, and the parallel state of the ceramic plate fixing piece is maintained. In particular, when using a plastic deformation part arranged in the approximate center of the substrate and a plastic deformation part arranged in the skeleton part, the width adjustment of the ceramic plate fixing piece by the fastener does not require a large tightening force. Can be implemented.

  Further, according to the anchor metal object of the fourth aspect, at the bent portion of the nail bent at an obtuse angle with respect to the vertical wall of the skeleton part, the edge is clean and the roundness that interferes with the edge of the fixing groove of the ceramic plate is generated. There is no risk of missing edges.

  Further, according to the anchor metal object of claim 5, since the four corners of the ceramic plate fixing piece are provided with flanges protruding outward from the claw and having a flat surface having the same height as the substrate, it is inserted into the fixing groove. The nail thus held is held at the same angle with respect to the fixing groove by the substrate and the heel in contact with the ceramic plate with the fixing groove interposed therebetween. Moreover, even when the force that tries to act in the direction of lifting the substrate of the ceramic plate fixing piece from the ceramic plate and removing the claw works relatively from the center piece side, the wrinkle works in the direction to suppress this force, so the ceramic plate fixing piece The strength of fixing the to the porcelain plate is strengthened, the catch of the nail is stabilized, and the porcelain plate can be prevented from falling after construction.

  Furthermore, according to the invention described in claim 6, when a torque exceeding a predetermined value is applied to the head of the nut, it can be broken from the bent portion to leave the female screw portion, so that it can be used for a ceramic plate with a certain tightening force or less. The connecting bridge of the fixed piece can be buckled to narrow the distance between the pair of claws, so that the pair of fixing grooves on the ceramic plate side can be sandwiched between the claws, and a stable fixing force can be exhibited. That is, a stable fixing force can be exerted on the ceramic plate as an anchor metal piece without performing torque management with a torque wrench.

It is a front view which shows 1st Embodiment of the anchor metal object concerning this invention, and shows the state before hooking a nail | claw on the fixing groove. It is sectional drawing which follows the II-II line of the anchor metal object. It is a front view which shows the state which buckled the connection bridge | bridging of the anchor metal object, and hooked the nail | claw on the fixing groove. It is a front view of the piece for earthen plate fixation of the anchor metal object. It is a left view of the same ceramic plate fixing piece. It is a center cross-sectional view of the same ceramic plate fixing piece. It is a perspective view of the piece for fixing the ceramic plate. It is a perspective view of the center piece of the anchor metal object of 1st Embodiment. It is a center longitudinal section half cut sectional view of the nut which constitutes the fastener of the anchor metal fitting. It is a front view of the piece for earthen plate fixation which shows 2nd Embodiment of the anchor metal object concerning this invention. It is a center cross-sectional view of the same ceramic plate fixing piece. It is a perspective view of the piece for fixing the ceramic plate. It is a front view of the piece for earthen plate fixation which shows 3rd Embodiment of the anchor metal object concerning this invention. It is a center cross-sectional view of the same ceramic plate fixing piece. It is a perspective view of the piece for fixing the ceramic plate. It is a perspective view which shows one Embodiment of the centerpiece used in 2nd Embodiment and 3rd Embodiment of the anchor metal object concerning this invention. It is a perspective view which shows other embodiment of the centerpiece used in 2nd Embodiment and 3rd Embodiment of the anchor metal object concerning this invention. It is a perspective view which shows other embodiment of the centerpiece used in 2nd Embodiment and 3rd Embodiment of the anchor metal object concerning this invention. It is a perspective view which shows other embodiment of the centerpiece used in 1st Embodiment of the anchor metal object concerning this invention. It is a perspective view which shows 4th Embodiment of the anchor metal object concerning this invention.

  Hereinafter, the configuration of the present invention will be described in detail based on embodiments shown in the drawings.

  1 to 9 show a first embodiment of the anchor hardware of the present invention. This anchor hardware 1 is generally made of stainless steel, and is a single piece attached to the ceramic plate 3 side by hooking a claw 8 into the center piece 2 attached to the building housing side and the fixing groove 3b of the back surface 3a of the ceramic plate 3. It comprises a ceramic plate fixing piece 4 and a fastener 5 for connecting the ceramic plate fixing piece 4 and the center piece 2 and fixing the ceramic plate fixing piece 4 to the ceramic plate 3 by locally deforming it. 2 and a ceramic plate fixing piece 4. The fixing grooves 3b on the back surface 3a of the porcelain plate 3 are grooves formed on the upper and lower rib surfaces of the porcelain plate 3, and are cut obliquely with respect to the porcelain plate back surface 3a as shown in FIG. An overhang portion 3c is formed on which the claw 8 of the fixing piece 4 is caught. The shape of the porcelain plate 3 surrounded by the pair of grooves 3b is a dovetail shape (referred to as a dough portion in this specification), and an overhang portion 3c is formed by the slope of the groove 3b that defines both ends thereof. Yes. In the present embodiment, the fastener 5 includes a screw 6 and a nut 7.

  The porcelain plate fixing piece 4 includes a pair of claws 8 hooked on a pair of parallel fixing grooves 3b on the back surface 3a of the porcelain plate 3, a flat substrate 9 in contact with the back surface 3a of the porcelain plate 3, and a skeleton portion 12 for strength reinforcement. And have. The skeleton 12 forms a groove shape with a pair of vertical walls 12a and 12b orthogonal to the ceramic plate 3 and a horizontal wall 12c parallel to the ceramic plate 3 connecting the vertical walls 12a and 12b. Each is provided. Then, the lower end edge of the vertical wall 12b outside the skeleton 12 is bent inward to form a claw 8 that fits into the fixing groove 3b of the ceramic plate 3. Therefore, it has a symmetrical shape in which the claw 8 is formed by being bent slightly inward from the lower end of the vertical wall 12b. The bending angle θ formed by the claw 8 and the vertical wall 12b is greater than 0 degree and less than 90 degrees, preferably 10 ° to 80 °, more preferably 30 ° to 60 °, and most preferably 40 ° to 50 °. Set to range. That is, the included angle φ between the claw 8 and the vertical wall 12b is an angle of 90 ° to less than 180 °, preferably 100 ° to 170 °, more preferably 120 ° to 150 °, and most preferably 130 ° to 140 °. It is bent so as to form an obtuse angle in the range.

  Further, at both ends of the claw 8, that is, at the four corners of the ceramic plate fixing piece 4, hooks 13 that protrude outward from the claw 8 and have the same height as the substrate 9 are provided. In the case of this embodiment, the claw 8 is formed longer than the skeleton part 12 so as to protrude from the substrate 9 and the skeleton part 12 of the ceramic plate fixing piece 4 in the length direction of the fixing groove 3b. The flanges 13 projecting outward from the fixing groove 3b and parallel to the surface 3a of the porcelain plate 3 are integrally formed by bending so as to protrude from the portion 12. The collar portion 13 and the substrate 9 between the skeleton portions 12 are arranged in a straight line and are provided flush with the ceramic plate 3. That is, the back surface of the collar portion 13 and the back surface of the substrate 9 between the skeleton portion 12 are arranged at the same height. As a result, the ridges 13 at the four corners of the porcelain plate fixing piece 4 get over the groove 3b on the porcelain plate 3 side and come into contact with the back surface of the porcelain plate 3. (The illustration is omitted) The ceramic plate-fixing piece 4 is hardly lifted by the rotational moment acting from the side. Here, the size, for example, the width (longitudinal direction of the fixing groove 3b) and the length (width / short direction of the fixing groove 3b) of the ridges 13 may be the same on the left and right sides. It is also possible to

  In addition, the ceramic plate fixing piece 4 is provided with a first region 9 a including one nail 8 and a second region 9 b including the other nail 8 by providing a slit 10 in the substrate 9 between the skeleton parts 12. While being divided, the first and second regions 9a and 9b are connected and integrated into one piece by connecting bridges 11 provided at both ends of the slit 10. The slit 10 is for adjusting the distance between the claw 8 and the claw 8 of the ceramic plate fixing piece 4 by changing the width W by buckling and plastically deforming the connecting bridges 11 at both ends. A shrinkage allowance is generated that allows a portion (convex portion) formed between the fixing grooves 3 b to be sandwiched between the pair of claws 8 and the substrate 9. That is, the slit 10 enables the width adjustment of the ceramic plate fixing piece 4, that is, the adjustment of the distance between the pair of claws 8, and has a width W that allows a sufficient adjustment allowance. In this embodiment, the width W (see FIG. 1) of the slit 10 before the connecting bridge 11 buckles is parallel to the back surface 3a of the ceramic plate 3 by bringing the substrate 9 of the ceramic plate fixing piece 4 into contact with the back surface 3a of the ceramic plate 3. The pair of claws 8 are fitted into the pair of fixing grooves 3b of the porcelain plate 3 so as to be movable while moving in the fixing groove 3b, and the width W ′ of the slit 10 after the connecting bridge 11 is buckled. (Refer to FIG. 3) is intended to exhibit a tightening allowance for firmly holding and fixing the portion of the ceramic plate 3 with a pair of claws 8. In addition, the adjustment which enables adjustment of the space | interval between a pair of nail | claw 8 so that the plastic deformation part comprised by the slit 10 and the connection bridge | bridging 11 may pinch | interpose the part between the fixing grooves 3b of the porcelain plate 3. As long as a sufficient allowance is obtained, the shape of the slit 10 and the connecting bridge 11 shown in the figure is not particularly limited.

  The slit 10 of the present embodiment has a trapezoidal shape (convex) protruding toward the second region 9b on the first region 9a side in the central portion where the bearing portion 14 is arranged, and the other second On the region 9b side, it is formed in a non-linear shape having an asymmetric shape with a trapezoidal concave portion and a constant width. The slit 10 is disposed at a position where the distance from the skeleton part 12 to the connecting bridge 11 is longer on the second region 9b side than the first region 9a, and is wide in the first region 9a and the second region 9b. The space for placing the centerpiece 2 on the second region 9b side is set differently. Further, in the case of the present embodiment, the connecting bridge 11 forms a semicircular belt shape and is formed so as to protrude toward the outside of the slit 10 orthogonal to the acting direction of the compressive force generated by the fastener 5. . In this case, when the compressive force acts in the width direction, the connecting bridge 11 is buckled and plastically deformed, and the width / interval W of the slit 10 is narrowed to W ′ in FIG. The interval between the second regions 9b, that is, the interval between the pair of claws 8 can be adjusted.

  A through-hole (so-called fool hole) 17 is provided at substantially the center of each vertical wall 12b of the skeleton 12 provided in each of the first region 9a and the second region 9b of the ceramic plate fixing piece 4. . Further, a bearing portion 14 is formed by cutting and raising in the vicinity of the vertical wall 12a inside the first region 9a and the second region 9b of the ceramic plate fixing piece 4. This bearing portion 14 is also provided with a through hole (so-called fool hole) 16 so as to be coaxial with the through hole 17 drilled at substantially the center of each vertical wall 12 b of the skeleton portion 12. Therefore, in the case of this embodiment, the screw 6 is supported at six places for convenience, and when the connecting bridge 11 is buckled, it is considered that the ceramic plate fixing piece 4 itself does not warp. Of course, it is preferable that the number of supporting points of the screw 6 is large because the supporting rigidity is high, but there is no reason why it is necessary to support at six points. The original purpose is achieved if it is supported at least at two points on both ends.

  On the other hand, the center piece 2 also has a pair of vertical walls 24a and 24b orthogonal to the ceramic plate 3 and a horizontal wall 9 parallel to the ceramic plate 3 connecting the vertical walls 24a and 24b. The groove-shaped skeleton portion 24 having the above is formed, and the strength as the support structure is maintained. The center piece 2 is provided with a mounting portion 19 that is fixed to a building frame (not shown), and at least one vertical wall 24a is extended to form a bent structure, thereby increasing the secondary moment of section. Yes. In the case of this embodiment, the bearing 21 of the ceramic plate fixing piece 4 passes through the horizontal wall 12c of the center piece 2 and the hole 21 has a width that allows the center piece 2 to move laterally (including swinging). Is provided. The bearing portion 14 is fitted into the hole 21 to allow relative lateral movement of the center piece 2 within the range of the width of the hole 21. Further, on the bottom surface of the vertical walls 24a, 24b of the center piece 2, a convex portion 22 projecting downward is provided in the periphery of the bearing portion, and one is formed in the hole 15 after being raised around the bearing portion 14, The other is inserted into the trapezoidal recess of the slit 10. Accordingly, the center piece 2 is placed on the bottom surface of the vertical wall 24a excluding the convex portion 22 while being kept parallel to the substrate 9 of the ceramic plate fixing piece 4, and the convex portion 22 is formed on the bearing portion 14 or the slit 10. It is possible to move in a lateral direction (including swinging) within a range in contact with the side of the trapezoidal recess. Reference numeral 20 in the figure denotes a hole through which a screw or the like is passed for fixing the center piece 2 to the support structure on the building frame side.

  Here, if the clearance between the bearing portion 14 of the ceramic plate fixing piece 4 and the hole 21 of the center piece 2 is narrowed, the allowable width in which the center piece 2 can move relatively during an earthquake or the like is narrowed. There is a problem that the movement is restricted and the force is transmitted directly to the ceramic plate 3 side. On the other hand, if the range in which the center piece 2 can move is widened too much, the position of the center piece 2 will not be stable, and the center piece 2 and thus the ceramic plate 3 will not be stable in normal times (when no seismic load is applied). There is a problem. Therefore, by setting the clearance to about 2 mm, vibrations are absorbed by the center piece 2 moving relatively freely when the trunk edge and the base move during an earthquake, while reducing the shakiness at normal times. However, the force is not easily transmitted directly to the ceramic plate 3 side.

  Thus, the ceramic plate fixing piece 4 and the center piece 2 are formed by passing the screw 6 in a state where the through holes 16 and 17 of the ceramic plate fixing piece 4 and the through hole 23 of the center piece 2 are arranged coaxially. By screwing the nut 7, the porcelain plate fixing piece 4 and the center piece 2 placed thereon are connected, and the screws 6 are moved to the porcelain plate fixing piece 4 mainly in the lateral direction. The center piece 2 is movably supported. Further, the screws 6 that pass through the through holes 16, 17, and 23 of the ceramic plate fixing piece 4 and the center piece 2 are screwed to the nut 7 outside the frame portion 12, and the nut 7 is tightened to connect the connecting bridge 11. A compressive force for buckling can be applied.

  Here, as shown in FIG. 9, the nut 7 has a screwless hole 7 a having a diameter larger than that of the screw 6, and a screw 7 into which the screw 6 is screwed with a head 7 a whose outer diameter portion is fitted to a wrench. When a torque exceeding a predetermined torque is applied via the head portion 7a, the inner screw portion 7b having the hole 7e is provided, and the neck portion 7c is provided at the boundary between the head portion 7a and the female screw portion 7b. It is comprised so that it may fracture | rupture in the part 7c. That is, when a torque of a certain value or more is applied, the head 7a of the nut 7 is torn off and no further tightening force is applied. Therefore, a constant tightening force can be applied without turning the screw 6 while managing the torque with a torque wrench, and the ceramic plate fixing piece 4 can be fixed to the ceramic plate 3 with a stable tightening force. Further, as shown mainly in FIGS. 4 and 5, a screw head 6a is provided on the vertical wall 12b on the outer side of the skeleton 12 on the side on which the head 6a of the screw 6 of the ceramic plate fixing piece 4 abuts. Protrusions 18 that prevent the rotation by being sandwiched are provided. Since the screw head 6a is non-rotatably supported by the projection 18, the fastener 5 can be tightened only by rotating the nut 7 side.

  Using the center piece 2, the ceramic plate fixing piece 4, and the fastener 5 combined as described above, a method of gripping the ceramic plate 3 and attaching it to a building frame (not shown) will be described. By the way, the construction method using the anchor hardware 1 is not shown in the figure, but a standard method of fixing to the base itself or a base metal fitting attached to the base, a hooking method for hooking on the trunk edge of the base hardware, or a combination method thereof. There is a difference in the shape of the center piece used accordingly.

  First, as indicated by phantom lines in FIGS. 1 and 2, a pair of fixing grooves 3 b are processed at appropriate positions over the upper and lower rib surfaces of the back surface 3 a of the ceramic plate 3. The fixing groove 3b is formed on the upper and lower rib surfaces of the porcelain plate 3, and is cut obliquely with respect to the porcelain plate back surface 3a so that the claw 8 of the porcelain plate fixing piece 4 is caught. Is formed. A pair of claws 8 of the porcelain plate fixing piece 4 of the anchor hardware 1 in a temporarily assembled state are fitted into the fixing groove 3b.

  At this time, in this embodiment, the bearing portion 14 and the hole 15 after being raised around the bearing portion 14 are formed at the same position from the skeleton portion 12 in the first region 9a and the second region 9b. On the other hand, the slit 10 has a trapezoidal shape (convex) protruding toward the second region 9b on the first region 9a side in the central portion where the bearing portion 14 is arranged, and the other second region. On the 9b side, the shape is asymmetric with a trapezoidal recess. Further, the hole 21 for receiving the bearing portion 14 provided on the horizontal wall 12 c corresponding to the ceiling of the center piece 2 is arranged so as to be biased from the center of the center piece 2 to the right half region. Therefore, as shown in FIG. 1, the center piece 2 has a hole 21 for receiving the bearing portion 14 between the bearing portion 14 and the skeleton portion 12 on the second region 9 b of the ceramic plate fixing piece 4. Only when the rear side (the right half side) is arranged, the center piece protrusions 22 are inserted into the slits 10 and the holes 15 after being cut and raised, and the center piece is placed on the substrate 9 of the ceramic plate fixing piece 4. 2 can be placed stably in parallel. In any other position or orientation, either one of the projections 22 of the centerpiece rides on the substrate 9 or tilts without allowing the bearing portion 14 to fit into the hole 21, and the screw 6 cannot penetrate the centerpiece 2. 2 cannot be set on the ceramic plate fixing piece 4. From this, the center piece 2 is arranged so as to be offset in the direction and position that is uniquely determined with respect to the ceramic plate fixing piece 4, so that it does not interfere with the center piece protruding from the other ceramic plate facing each other. Can be arranged.

  Then, after the ceramic plate fixing piece 4 is moved to a predetermined position, the head 7a of the nut 7 is rotated with a wrench or the like, whereby the screw 6 is tightened and the connecting bridge 11 is buckled while the ceramic plate fixing piece 4 is buckled. The first region 9a and the second region 9b are pulled toward each other, and the claw 8 is hooked on the fixing groove 3b and fixed to the ceramic plate 3. Thereafter, the center piece 2 is attached to a member on the building frame side by using the attachment part 19 of the center piece 2, and the ceramic plate 3 is fixed to the building frame.

  10 to 12, a second embodiment of the present invention will be described. In other embodiments described below, the same components as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In this embodiment, the anchor hardware 1 includes the slit 10 and the connecting bridge 11 so that the substrate 9 of the ceramic plate fixing piece 4 has a bilaterally symmetric shape, and the center piece can be translated in the lateral direction between the left and right skeleton parts 12. The swing is restricted. The slit 10 has a rectangular shape, and a left and right first region 9a and a second region 9b are connected to each other by a V-shaped connecting hinge 11 that protrudes inward at the center thereof. 9 is integrated. The distance between the substrates 9 before the connecting hinge 11 is buckled is, for example, between the left and right skeleton parts 12 with the center pieces 2 ', 2 "as shown in FIG. 16, FIG. 17 and FIG. Although there is a gap, if the screw 6 is tightened and a compressive force is applied via the vertical walls 12b of both skeleton parts 12, the connecting hinge 11 buckles inward, and the vertical walls 12b inside the skeleton parts 12 are inside. The clearance between the center pieces 2 ′ and 2 ″ is appropriately reduced so as to form a lateral shakiness of about 2 mm, for example. In the present embodiment, the first region 9a and the second region 9b are provided symmetrically about the bottom of the valley of the V-shaped connecting hinge 11. However, in some cases, the embodiment of FIG. You may provide in asymmetrical shape like this. Even in this case, there is no problem in restricting the lateral movement or swinging of the center pieces 2 ′, 2 ″ placed on the substrate 9 by the left and right skeleton parts 12.

  Here, since the bearing portion 14 is not provided in the ceramic plate fixing piece 4 of the present embodiment, the center piece 2 ′, 2 ″ is not provided with the hole 21 for receiving the bearing portion 14. Also, the ceramic plate fixing piece 4 is provided. In order to regulate the position of the center piece 2 ′, 2 ″ between the left and right skeleton parts 12 of the piece 4, the center piece 2 ′, 2 ″ is arranged at the approximate center of the ceramic plate fixing piece 4. Therefore, the center The bottom surfaces of the left and right vertical walls 24a and 24b of the pieces 2 ′ and 2 ″ do not have protrusions 22 and are flat surfaces. Of course, the protrusion 22 is provided on the bottom surfaces of the left and right vertical walls 24a, 24b of the center piece 2 ', 2 ", and the protrusion 22 is inserted into the slit 10 after the width is reduced. You may make it aim at horizontal position control of center piece 2 ', 2' 'with the clearance between the edges of the slit 10. FIG. In this case, by providing a recess for inserting the protrusion 22 near the center of the edges (sides) on both sides of the slit 10, the bottom surfaces of the left and right vertical walls 24a, 24b of the center piece 2 ', 2 " It is preferable to support by the surrounding substrate 9 in order to reduce the backlash in the vertical direction of the center pieces 2 ′, 2 ″.

  In the anchor metal object of this embodiment, when the anchor metal object 1 is arranged facing each other, the positions of the fixing grooves 3b formed in the ceramic plate 3 are shifted from each other so that the protruding center pieces do not interfere with each other, or It is desirable to use a center piece 2 ″ having an offset mounting portion 19 as shown in FIGS. 17 and 18 in an opposite combination. Incidentally, the center piece 2 ″ shown in FIGS. The attachment portion 19 is formed slightly offset from the center of the portion disposed between the left and right skeleton portions 12 and is combined in the opposite direction with respect to the fixing groove 3b on the straight line. Even when the two are attached, the attachment portions 19 are arranged side by side without interfering with each other.

  Further, the claw 8 need not be provided so as to protrude directly from the vertical wall 12b of the skeleton 12. In some cases, the nail structure of the invention described in Patent Document 1 may be applied only to the structure of the nail in a piece for fixing a ceramic plate. For example, as shown in FIGS. 13 to 15, the lower end of the vertical wall 12 b outside the left and right skeleton parts 12 of the ceramic plate fixing piece 4 is once bent outwardly on the extension line of the substrate 9 to be parallel to the ceramic plate 3. In addition, the horizontal claw 8 may be bent by bending the tip of the horizontal wall 25 downward. Also in the anchor hardware of this embodiment, the connecting bridge 11 of the ceramic plate fixing piece 4 is buckled by inserting the claws 8 into the pair of fixing grooves 3b and then pulling them together by tightening with the screws 6. The claw 8 is overhanged so as to sandwich a portion (convex portion) formed between the fixing groove 3b by the horizontal wall 25 and the claw 8 having a re-shape by reducing the distance between the pair of claws 8. It can be hooked on 3c and fixed to the ceramic plate. Also in the anchor metal object of this embodiment, center pieces 2 ', 2 "having no protrusion 22 on the bottom surface as illustrated in FIG. 16 or FIGS. 17 and 18 are used.

  The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the gist of the present invention. For example, in this embodiment, the fastener 5 is composed of a screw 6 and a nut 7 that are independent from the ceramic plate fixing piece 4, but in some cases, the first and second regions 9a, 9a, You may make it replace the nut 7 by cutting a female screw in the vertical wall 12b outside the frame part 12 of 9b.

  Further, the center piece is not particularly limited to the type that is directly fixed to the building housing side as shown in FIG. 18 or FIGS. 16 to 18, and is a hook type having an L-shaped hook 26 as shown in FIG. 19. In other words, the present invention can be applied to a hook-type anchor hardware. The hook-type anchor hardware has a hook 26 in the center piece 2 ″ ′, and a building frame. The hook 26 is hooked on the body edge (not shown) of the base metal installed on the side. The trunk edge in this case has a flange that is accommodated in the recess 27 surrounded by the hook 26 portion, and is provided so as to be hooked without rattling in a direction orthogonal to the ceramic plate. Usually, this anchor hardware is attached to the lower side of the ceramic plate and hooked on the base metal to support the ceramic plate. In the case of applying this center piece 2 ″ ′ as an anchor metal object in the embodiment of FIG. 1, a ceramic plate is provided by providing a projection 22 and fitting the projection 22 into a hole 15 around the slit 10 and the bearing portion 14. The position of the fixing piece 4 is restricted.

  Moreover, the nail | claw structure shown in FIGS. 4-7 prevents the defect | deletion of the edge (overhang part) of the fixing groove | channel of a ceramic plate also when applying to the anchor metal object of the invention of patent document 1 description of 3 piece structure. It is effective. That is, at the angle at which the lower edge of the vertical wall outside the skeleton formed on each of the pair of side pieces is inserted into the fixing groove of the porcelain plate as shown in FIGS. The claws may be continuously formed at an obtuse angle with respect to the vertical wall by being bent directly inward. In this case, it is preferable to provide hooks that protrude outward from the claws across the fixing grooves of the ceramic plate at both ends of the claws of each side piece. For example, as shown in FIGS. 4 to 7, the claw is formed longer than the skeleton so as to protrude from the skeleton in the length direction of the fixing groove, and the fixing groove is formed in a portion protruding from the skeleton of the nail. The flanges projecting outward and parallel to the back surface of the ceramic plate are integrally formed by bending. The collar portion and the bottom surface of the vertical surface inside the skeleton portion are arranged in a straight line and are provided flush with the ceramic plate. As a result, each side piece is installed with an inclination between the bottom surface of the vertical wall inside the skeleton and the heel, so that it is formed with a fixing groove like the side piece described in Patent Document 1. Even if the claw is not formed in a shape that holds the edge / overhang portion of a certain portion, the inclination of the claw with respect to the overhang portion can be maintained in the fixing groove.

  Moreover, the plastic deformation part which adjusts the space | interval of the nail | claw 8 of the 1st and 2nd area | regions 9a and 9b and the nail | claw 8 by deform | transforming the ceramic plate fixing piece 4 locally may be the skeleton part 12 depending on the case. You may make it provide in. For example, as shown in FIG. 20, slits (notches) 28 are formed in the horizontal wall 12c of the skeleton part 12 from the front and rear ends (both ends in the direction orthogonal to the screws 6) of the horizontal wall, so that By leaving 12c, a plastically deformed portion is formed. That is, by shortening the length of the horizontal wall 12c, the strength in the width direction of the skeleton part (interval direction between the pair of claws 8) is reduced, and the horizontal wall 12c is buckled by applying a compressive force by the fastener 5. Thus, the skeleton 12 is crushed in the width direction so that the nail interval can be adjusted. In this case, the horizontal wall 12c functions as a connecting bridge, and the horizontal wall 12c is buckled to change the width of the slit 28, whereby the ceramic plate can be supported even by the piece for fixing the ceramic plate having a one-piece structure. In the embodiment shown in FIG. 20, the plastic deformed portion composed of the slit 10 and the connecting bridge 11 disposed substantially at the center of the substrate 9, the slit 28 opened in the horizontal wall 12 c of the skeleton portion 12, and the remaining horizontal wall 12 c. And a plastic deformation part consisting of This further reduces the strength of the ceramic plate fixing piece in the direction in which the compression force is applied by the fastener 6 from that of the embodiment shown in FIG. In some cases, the width of the ceramic plate fixing piece 4 may be adjusted only by the plastic deformation part formed in the skeleton part 12.

1 Anchor metal 2 Centerpiece 3 Porcelain plate 3a Back side of porcelain plate 3b Fixing groove 3c Overhang part (edge of fixing groove)
4 Porcelain plate fixing piece 5 Fastener 6 Screw 7 Nut 7a Head 7b Female thread portion 7c Bending portion 8 Claw 9 Substrate 9a First region 9b Second region 10 Slit 11 Connecting bridge 12 Grooved skeleton portion 12a To the porcelain plate The inner wall 12b of the pair of vertical walls perpendicular to each other 12b The outer wall of the pair of vertical walls orthogonal to the porcelain plate 12c The horizontal wall 13 parallel to the porcelain plate 13 鍔 14 Bearing part 15 22 A projection 28 inserted into a hole after cutting and raising the slit and the bearing portion. A slit .theta. For forming a plastic deformation portion in the skeleton portion. A bending angle .phi. Formed by the claw 8 and the vertical wall 12b. The claw 8 and the vertical wall 12b. The included angle

Claims (6)

The ceramic plate has a pair of claws hooked to a pair of parallel fixing grooves on the back surface of the ceramic plate, and a flat substrate in contact with the back surface of the ceramic plate between the claws. One piece for fixing the ceramic plate attached to the side, a center piece placed on the building plate side mounted on the piece for fixing the ceramic plate, and connecting the piece for fixing the ceramic plate and the center piece and the ceramic plate A fastener for deforming and fixing the fixing piece to the ceramic plate, and locally deforming the ceramic plate fixing piece by tightening the fastener between the pair of nails of the ceramic plate fixing piece. An anchor hardware comprising a plastic deformation portion that enables adjustment of the distance between the pair of claws. The plastic deformation portion is provided at both ends of the slit, which divides the substrate of the ceramic plate fixing piece into a first region including one of the claws and a second region including the other of the claws. 2. The anchor hardware according to claim 1, wherein the ceramic plate fixing piece is integrated by connecting the first and second regions. The porcelain plate fixing pieces respectively include groove-shaped skeleton portions having a pair of vertical walls orthogonal to the porcelain plate and horizontal walls parallel to the porcelain plates connecting the vertical walls, and A slit is formed in the horizontal wall from the front and rear ends in a direction orthogonal to the fastening direction of the fastener, leaving the central portion of the horizontal wall, and the plastic deformation portion is configured using the remaining horizontal wall portion as a connection bridge. The anchor hardware according to claim 1 or 2, wherein: The porcelain plate fixing pieces each include a groove-shaped skeleton portion having a pair of vertical walls orthogonal to the porcelain plate and horizontal walls parallel to the porcelain plate connecting the vertical walls. The lower end edge of the outer vertical wall is bent inward at an angle so as to fit into the fixing groove of the ceramic plate, and the claw is formed continuously with the vertical wall. The anchor hardware according to any one of the above. The anchor metal object according to any one of claims 1 to 4, wherein a ridge that protrudes outward from the claw and is a flat surface having the same height as the substrate is provided at four corners of the ceramic plate fixing piece. The fastener includes a screw and a nut. The nut has a screwless hole having a diameter larger than that of the screw, and a head having an outer diameter portion fitted to a wrench and a screw hole into which the screw is screwed. Having a female threaded portion, and having a twisted portion at the boundary between the head and the female threaded portion, and breaking at the twisted portion when a torque exceeding a predetermined torque is applied through the head. The anchor hardware according to any one of claims 1 to 5, wherein:

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