JP2006037537A - Repair structure of wall panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To save the labor of repair works by re-covering a damaged wall panel from the outdoor side, and to improve the appearance of an outer wall after a repair by solving an exposure on a wall external-surface of a structure for fixing the wall panel. <P>SOLUTION: The mounting wall 10 of a new wall panel 2A fitted at the place of the repair is fixed inseparably on a wall foundation 1 through a pressure-fitting engaging structure. The pressure-fitting engaging structure is composed of a first engaging body 18 mounted and fixed on the columnar wall foundation 1 from the outdoor side and a second engaging body 19 fixed on the internal surface of the mounting wall 10. The new wall panel 2A temporarily joined in a doglegged shape and the existing wall panel 2 are pushed in and operated in a flush state, and the new wall panel 2A is fitted at the place of the repair. The first engaging body 18 and the second engaging body 19 are pressure-fitted and engaged simultaneously, and the new wall panel 2A is fixed inseparably on the wall foundation 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wall panel repair structure suitable for replacing a wall panel that has been damaged by mistake after the construction of an outer wall.

  For example, Patent Document 1 discloses a repair structure that replaces a wall panel in which an abrasion or a dent is formed. There, the damaged wall panel and the lower wall panel are removed, the new wall panel and the lower wall panel are temporarily joined in a square shape, and then the upper and lower mating parts of both wall panels The new wall panel is inserted into the repair site by pushing it into the same plane while engaging the installed wall panel. Bolts (self-drilling screws) are screwed into both wall panels in advance, and the two wall panels are fixed to the vertical body edge in an inseparable manner by tightening with bolts to a fixing bracket attached to the vertical body edge. To do. The fixing bracket is formed in a hat shape in cross section, and is externally fitted to the vertical trunk edge from the wall inner surface side.

  This type of repair structure can also be found in US Pat. There, only the damaged wall panel is removed, a new wall panel is fitted into the repaired part, and nails are driven from the outer surface of the wall panel to the vertical trunk edge to fix the wall panel inseparably.

Japanese Patent No. 2647612 (paragraph number 0014, FIG. 1) Japanese Patent No. 3498552 (paragraph number 0014, FIG. 3)

  According to the repair structure of Patent Document 1, the wall panel to be replaced and the lower wall panel are fastened and fixed to the fixing bracket with bolts and nuts, respectively. Both wall panels can be firmly fixed. Since the operation head of the bolt screwed into the wall panel in advance is not exposed to the outer wall surface, there is an advantage that the appearance of the outer wall after repair can be improved. The problem is that since the bolt and the fixing metal are fastened on the inner surface side of the wall panel, it is necessary to perform repair work from both the indoor and outdoor sides, which takes a lot of work. In particular, when indoor wall construction and interior construction are being carried out at the same time, it is necessary to disassemble and reconstruct the inner wall and interior, requiring much labor for repair work.

  In this regard, according to the repair structure of Patent Document 2, it is only necessary to replace the damaged wall panel from the outdoor side, and the labor of repair work can be saved. However, since the new wall panel fitted in the repair location is fastened and fixed with a nail driven from the outer surface, the head of the nail is exposed on the outer wall surface after repair, and the appearance is impaired and the nail head is hidden. Extra work such as sealing and repair painting is added. There is a risk that rainwater will permeate from the nail holes.

  It is an object of the present invention to replace a damaged wall panel from the outside, eliminating the trouble of repair work, eliminating the exposure of the structure for fixing the wall panel to the outer surface of the wall, and repairing the outer wall after repair. An object of the present invention is to provide an outer wall material repair structure that can improve the appearance. An object of the present invention is to provide a repair structure for an outer wall material that can fix a wall panel in a state where the wall panel can be firmly and highly waterproof.

  The repair structure of the wall panel of the present invention applies to an outer wall configured by engaging the adjacent ends of a group of wall panels 2 with unevenness. The wall panel 2 has a pair of connecting portions 7 and 8 that are in a concavo-convex engagement relationship along the opposite sides in the longitudinal direction, and is solidified to the wall base 1 on one of the connecting portions 7 and 8. The mounting wall 10 is provided. The mounting wall 10 of the new wall panel 2A to be fitted into the repair location can be fixed to the wall base 1 in an inseparable manner through the press-fitting engagement structure. The press-fitting engagement structure includes a first engagement body 18 that is mounted and fixed to the columnar wall base 1 from the outdoor side, and a second engagement body 19 that is fixed to the inner surface of the mounting wall 10 that faces the first engagement body 18. including. When the new wall panel 2A temporarily joined in a square shape and the existing wall panel 2 are pushed and operated to be flush with each other, when the new wall panel 2A is fitted into the repair location, the first engagement body 18 and the second The new wall panel 2A is fixed to the wall base 1 in an inseparable manner by simultaneously press-fitting with the engaging body 19.

  Specifically, as shown in FIG. 4, a pair of retaining step portions 22 are respectively provided on the left and right leg walls 21 of the first engagement body 18 fixed to the wall base 1, so that the left and right sides of the second engagement body 19 are left and right. Are formed with a fastening seat 28 fastened and fixed to the mounting wall 10 with a fastener 32 and a pair of left and right engaging claws 29 that are press-fitted into the retaining step portion 22. It is formed so as to project outward from the claw 29 on the left and right sides.

  The first engagement body 18 includes a base wall 20 that is received on the outer surface of the wall base 1, a pair of left and right leg walls 21 that are continuous with the base wall 20 along both side surfaces of the wall base 1, and a middle portion of both leg walls 21. A pair of retaining step portions 22 projectingly provided, and an inclined guide surface 23 formed between the base wall 20 and the projecting end of the retaining step portion 22 for engaging and guiding the engaging claws 29; Each engaging claw 29 of the two engaging body 19 includes a claw arm 30 and a claw portion 31 provided at the tip of the claw arm 30.

  One of the leg walls 21 of the first engaging body 18 is formed with a hooking claw 35 that is hooked to the wall base 1 as shown in FIG. The wall base 1 can be fastened and fixed via a fastener 24.

In the present invention, the new wall panel 2A temporarily joined in a square shape and the existing wall panel 2 are pushed in from the outside in a flush manner, and the new wall panel 2A is fitted into the repair location. At this time, the second engagement body 19 fixed to the inner surface of the mounting wall 10 of the new wall panel 2A is press-fitted and engaged with the first engagement body 18 fixed to the wall base 1, whereby the new wall panel 2A is Since it is fixed to the wall substrate 1 so as not to be separated, the replacement work of the damaged wall panel 2 can be performed from the outdoor side. Therefore, it is possible to save time and labor required for a series of operations compared to conventional repair operations. Since the wall panel 2A is engaged and fixed to the wall base 1 via both the first and second engaging bodies 18 and 19 provided on the inner surface of the mounting wall 10, bolts and the like that cannot be avoided in the conventional repair structure There is an advantage that the operation head such as a screw can be surely eliminated from the outer surface of the wall, the appearance of the outer wall after repair can be improved, and the construction quality can be improved.

  A pair of left and right retaining step portions 22 project from both leg walls 21 of the first engaging body 18, and a pair of left and right engaging claws 29 that are press-fitted into the retaining step portion 22 on the left and right sides of the second engaging body 19. By forming the two, the engaging bodies 18 and 19 can be firmly engaged and fixed, and the new wall panel 2A can be securely attached to the wall base 1. When the fastening seat 28 is formed so as to protrude outward in the left and right directions from the engagement claw 29, it is possible to prevent the fastening body 24 screwed into the fastening seat 28 via the mounting wall 10 from interfering with the first engagement body 18. Of course, when the engaging claw 29 falls into the retaining step portion 22 while being elastically deformed, it is possible to prevent the engaging claw 29 from coming into contact with the fastening body 24. Moreover, it can be easily engaged and connected.

  When the inclined guide surface 23 is formed on the first engaging body 18 and the engaging claw 29 is constituted by the claw arm 30 and the claw portion 31 provided at the tip of the claw arm 30, both the engaging bodies 18 and 19 are connected. When engaging and connecting, the engaging claw 29 can be guided to drop into the retaining step portion 22 while being gradually expanded and deformed by the inclined guide surface 23, so that the engaging claw 29 is reliably engaged with the retaining step portion 22, It is possible to perform the engagement and connection work of both the engagement bodies 18 and 19 with high reliability. Since the engaging claw 29 is configured by providing the claw portion 31 at the tip of the claw arm 30, the amount of elastic deformation of the engaging claw 29 can be increased within the elastic limit of the claw arm 30. Compared with the case where the amount of deformation is very small, both engagement bodies 18 and 19 can be engaged and connected with high reliability while clearly confirming that the engaging claw 29 has fallen into the retaining step portion 22 and engaged.

  As shown in FIG. 6, the first engagement is such that the latching claws 35 provided on one side of the leg wall 21 are attached to the wall base 1 and the other leg wall 21 is fastened and fixed to the wall base 1 with the fastener 24. According to the united body 18, it is only necessary to fasten and fix only one leg wall 21 to the wall base 1 with the fastener 24, so that the first engaging body 18 can be easily attached. Even when the internal pressure acts on the outer wall, it is possible to reliably prevent the new wall panel 2 </ b> A from being lifted off or rattling from the trunk edge 1.

(Embodiment) FIGS. 1 to 5 show an embodiment in which the wall panel repair structure according to the present invention is applied to a laterally stretched outer wall. In FIG. 1 to FIG. 3, the outer wall is configured by attaching left and right horizontally long wall panels 2 in order from the bottom to the outer surface of a columnar trunk edge (wall base) 1 arranged at regular intervals. The trunk edge 1 is made of steel having a C-shaped cross section, and one side thereof is open. The wall panel 2 is constituted by an outer cover plate 3 formed of a coated steel plate or a galvalume steel plate, a heat insulating layer 4 provided on the inner surface thereof, and an aluminum sheet 5 covering the inner surface of the heat insulating layer 4. The heat insulating layer 4 is formed by filling a foamed plastic material or rock wool. The wall panel 2 may be configured by covering the outer surface and the inner surface of the heat insulating layer 4 with the jacket plate 3.

  On the upper and lower sides of the wall panel 2, a pair of connecting portions 7, 8 having a relationship capable of engaging with the concave and convex portions is formed. Specifically, a connecting portion 7 made of an inverted U-shaped groove is formed along the lower side of the wall panel 2, and a connecting portion 8 made of a protrusion that fits into the connecting portion 7 is formed along the upper side of the wall panel 2. To do. A waterproof rubber packing 9 is disposed inside the former connecting portion 7. Both the connecting portions 7 and 8 are formed by bending the outer cover plate 3, but the connecting wall 10 extending upward continuously from the inner end of the connecting portion 8 on the upper side is formed by bending. In FIG. 2, a fastening seat 15 that accommodates the operating head of the self-drilling screw (fastening tool) 13 is formed in a recess near the upper end of the mounting wall 10. In the state where the vertically adjacent wall panel 2 is assembled to the trunk edge 1, the fastening seat 15 is covered with the upper wall panel 2, so that the operation head of the self-drilling screw 13 is not exposed to the outer wall surface. .

  In the laterally extending outer wall as described above, after the construction of the outer wall, the wall panel 2 may be accidentally damaged, and the outer cover plate 3 may be scratched or dented. In such a case, the damaged wall panel 2 is replaced according to the repair structure of the present invention. The repair work includes a preparation work for removing the damaged wall panel 2 and an installation work for fitting and fixing the new wall panel 2 in the repair portion.

  In the preparatory work, the upper end of the damaged wall panel 2 is cut in the longitudinal direction by an electric circular saw or the like, and the panel portion below the cutting line is removed from the lower wall panel 2. The connecting portion 8 remaining in the panel portion above the cutting line is removed from the connecting portion 7 of the upper wall panel 2, and the upper wall panel 2 is lifted to the wall outer surface side, so that the mounting wall 10 of the cut panel portion is removed. A work space is secured on the outer surface. In this state, the self-drilling screw 13 screwed into the mounting wall 10 is removed, and the upper panel portion including the connecting portion 8 is removed from the trunk edge 1.

  In the mounting operation, after the new wall panel 2A is fitted into the repaired portion, the mounting wall 10 is engaged and fixed to the trunk edge 1 via the press-fitting engagement structure. In FIG. 3, the press-fitting engagement structure includes a first engagement body 18 that is fixed to the trunk edge 1, and a second that is fixed to the inner surface of the mounting wall 10 of the new wall panel 2 </ b> A corresponding to the first engagement body 18. The engagement body 19 is used.

  The first engagement body 18 includes a base wall 20 that is received on the outer surface of the trunk edge 1, a pair of left and right leg walls 21 that are continuous with the base wall 20 along both side surfaces of the trunk edge 1, and a middle portion of both leg walls 21. It consists of a press metal fitting provided integrally with a pair of retaining stepped portions 22 projecting and an inclined guide surface 23 formed between both side ends of the base wall 20 and the projecting ends of the retaining step portion 22. The first engagement body 18 is fitted and attached to all the trunk edges 1 intersecting with the new wall panel 2A from the wall outer surface side, and the left and right leg walls 21 are fastened to the trunk edge 1 with self-drilling screws (fasteners) 24. .

  In FIG. 4, it is preferable that both the retaining step portions 22 are formed symmetrically, and the angle α between the retaining step portion 22 and the leg wall 21 is 90 degrees or less. When the angle α is 90 degrees or slightly smaller than 90 degrees, the amount of movement to the wall outer surface side is zero or very small when the claw portion 31 described later is engaged with the retaining step portion 22. Therefore, the play in the inner and outer directions in the state where the second engagement body 19 is engaged with the first engagement body 18 can be effectively restricted. The protrusion dimension b of the retaining step portion 22 from the leg wall 21 is set to be larger than the protrusion dimension of the operation head of the self-drilling screw 24, and in a state where both the engagement bodies 18 and 19 are engaged, a second relationship described later. Avoid contact interference of the claw portion 31 of the united body 19 with the operation head.

  1 and 4, the second engagement body 19 includes an engagement base 27 joined to the mounting wall 10, a pair of fastening seats 28 formed by folding the left and right ends of the engagement base 27 toward the inner surface side, It consists of a press fitting that is integrally provided with a pair of left and right engagement claws 29 formed on the inner surface side of the engagement base 27 so as to be continuous with the fastening seat 28. Each engagement claw 29 includes a claw arm 30 that can be elastically deformed, and a claw portion 31 formed by obliquely folding the tip of each claw arm 30 toward the inner surface, and the claw arm 30 and the engagement base 27 are sandwiched between them. The angle β was set to 90 degrees. The second engagement body 19 joins the engagement base 27 to the inner surface of the mounting wall 10 of the new wall panel 2 </ b> A, and fastens the left and right fastening seats 28 to the trunk edge 1 with rivets (fasteners) 32. A hole for the rivet 32 is formed in the mounting wall 10 and the fastening seat 28 in advance.

  As shown by the dimension c in FIG. 4, the fastening seat 28 is formed to project outward from the engaging claw 29 and the retaining step portion 22, and the rivet 32 that fastens the fastening seat 28 interferes with the first engaging body 18. To prevent it. As described above, when the angle β between the claw arm 30 and the engagement base 27 is 90 degrees and the fastening seat 28 is constituted by the inner and outer double walls, the structural strength of the second engagement body 19 is improved and both engagement bodies are improved. The engagement strength of 18/19 can be increased. The pair of engagement claws 29 are formed symmetrically. In FIG. 2, the vertical length of the second engagement body 19 is set slightly smaller than the vertical length of the mounting wall 10. The vertical length of the first engagement body 18 is set larger than the vertical length of the second engagement body 19.

  As described above, after the first engagement body 18 is fastened to the trunk edge 1 and the second engagement body 19 is fastened to the new wall panel 2A, the new wall panel 2A is repaired in the manner shown in FIG. Fit into. The lower connecting portion 7 of the new wall panel 2A is fitted into the upper connecting portion 8 of the lower wall panel 2, and the upper connecting portion 8 of the new wall panel 2 A is connected to the upper wall panel 2. The two panels 2 and 2A are temporarily assembled in a square shape by fitting into the lower connecting portion 7.

  In this state, the temporarily assembled portions of both the panels 2 and 2A are pushed to the body edge 1 so as to be flush with each other, and the second engagement body 19 is press-fitted to the first engagement body 18. At this time, the engaging claw 29 is guided by the inclined guide surface 23 and gradually expands and deforms, and when the claw portion 31 gets over the protruding end of the retaining step portion 22, the engaging claw 29 falls and engages with the retaining step portion 22. . As shown in FIGS. 1 and 2, when the claw portion 31 is engaged with the retaining step portion 22, the free end of the claw portion 31 is received by the base portion of the retaining step portion 22 and is engaged with the base wall 20. The base 27 is in close contact. Since the new wall panel 2A and the existing wall panel 2 located above the new wall panel 2A are drawn toward the trunk edge 1 by the first and second engaging bodies 18 and 19, the new wall panel 2A is moved to the other side. It can be fixed and held flush with the wall panel 2. As described above, the repair work of the damaged wall panel 2 only needs to be performed from the outside of the outer wall.

  FIG. 6 shows another embodiment of the first engagement body 18. There, a latching claw 35 that is latched and attached to the side opening edge 1 a of the trunk edge 1 is formed on one of the leg walls 21 of the first engagement body 18, and the other leg wall 21 is trunked with a self-drilling screw 24. Fastened to edge 1. As described above, when the first engaging body 18 is fastened and fixed to the trunk edge 1 with the hooking claws 35 being hooked, only one leg wall 21 may be fastened with the self-drilling screw 24. The trouble of attaching 18 can be saved. For example, even when an internal pressure acts on the outer wall, it is possible to reliably prevent the new wall panel 2 </ b> A from floating away from the trunk edge 1.

  In addition to the above embodiment, the first engagement body 18 can fasten the left and right leg walls 21 to the trunk edge 1 with self-drilling screws 24. The wall substrate 1 may be a stud or may be formed of wood in addition to the shape steel. The fasteners 24 and 32 for fixing the first and second engaging bodies 18 and 19 do not have to be self-drilling screws or rivets, but may be tapping screws, blind rivets, bolts or screws, or the like. Strength reinforcement ribs can be formed on the base wall 20, the leg wall 21, the engagement base 27, the claw arm 30, the claw portion 31, and the like as necessary.

  In the above embodiment, the laterally extending outer wall has been described. However, the present invention can be similarly applied to a longitudinally extending outer wall. The retaining step portion 22 may be formed by cutting and raising a part of the leg wall 21 instead of being bent. The retaining step portion 22 and the claw portion 31 can each be formed in a plurality of steps. The second engagement body 19 is preferably configured as a single component, but can be configured as two components in which the engagement base 27 is divided into left and right as necessary. In the case where the second engagement body 19 is composed of two parts, the engagement base 27 is overlapped on the inside and outside and connected so as to be slidable in the left-right direction, thereby changing the width dimension of the trunk edge 1. Correspondingly, the left and right width dimensions of the engagement base 27 can be changed and adjusted. Similarly, the first engagement body 18 can also be composed of two parts divided into left and right.

It is the sectional view on the AA line in FIG. It is a vertical side view of a repair location. It is a disassembled perspective view of a repair structure. It is an exploded plan view of the press-fitting engagement structure. It is sectional drawing which shows the assembly | attachment point of a novel wall panel. It is a cross-sectional top view which shows another Example of a 2nd engagement body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wall base 2 Wall panel 2A New wall panel 7/8 Connection part 10 Attachment wall 18 1st engagement body 19 2nd engagement body 20 Base wall 21 Leg wall 22 Stopping step part 23 Inclination guide surface 24 Fastener 28 Fastening seat 29 Engagement Claw 30 Claw arm 31 Claw part 32 Fastener

Claims (4)

A repair structure of a wall panel on an outer wall configured by engaging and engaging adjacent ends of a group of wall panels 2,
The wall panel 2 has a pair of connecting portions 7 and 8 that can be engaged with each other along the opposite sides in the longitudinal direction, and is fastened to the wall base 1 on one of the connecting portions 7 and 8. A mounting wall 10 to be solidified,
The mounting wall 10 of the new wall panel 2A to be fitted into the repair location can be fixed to the wall base 1 in an inseparable manner via the press-fit engagement structure,
A first engagement body 18 having a press-fitting engagement structure mounted and fixed to the columnar wall base 1 from the outdoor side, and a second engagement body 19 fixed to the inner surface of the mounting wall 10 facing the first engagement body 18 Including
When the new wall panel 2A temporarily joined in a square shape and the existing wall panel 2 are pushed and operated to be flush with each other, when the new wall panel 2A is fitted into the repair location, the first engagement body 18 and the second A repair structure for an outer wall material, wherein the new wall panel 2A is fixed to the wall base 1 in an inseparable manner by simultaneously press-fitting with the engagement body 19. A pair of retaining step portions 22 project from the left and right leg walls 21 of the first engagement body 18 fixed to the wall base 1, respectively.
On the left and right sides of the second engagement body 19, there are formed a fastening seat 28 fastened and fixed to the mounting wall 10 with a fastener 32, and a pair of left and right engagement claws 29 that are press-fitted into the retaining step portion 22. The repair structure for an outer wall material according to claim 1, wherein the fastening seat is formed so as to protrude outward in the left and right directions from the engaging claw. The first engaging body 18 is received by the outer surface of the wall base 1, the pair of left and right leg walls 21 extending along the both side surfaces of the wall base 1 continuously to the base wall 20, and the middle part of both leg walls 21. A pair of retaining steps 22 projectingly provided, and an inclined guide surface 23 formed between the base wall 20 and the projecting ends of the retaining steps 22 to engage and guide the engaging claws 29;
The outer wall material repairing structure according to claim 2, wherein each engaging claw 29 of the second engaging body 19 includes a claw arm 30 and a claw portion 31 provided at the tip of the claw arm 30. On one of the leg walls 21 of the first engagement body 18, a latching claw 35 that is latched and attached to the wall base 1 is formed.
The repair structure of the outer wall material according to claim 2 or 3, wherein the other of the leg walls (21) of the first engagement body (18) is fastened and fixed to the wall base (1) via a fastener (24).

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