JP5008966B2 - Wall joint structure - Google Patents

Description

  The present invention relates to a joint structure of a wall.

  Conventionally, since an outer wall material such as reinforced concrete and a metal fixing member such as an anchor bolt embedded in the outer wall material have almost the same linear expansion coefficient, no countermeasures by thermal expansion and contraction have been taken.

  However, recently, there is a configuration in which a metal body edge is fixed to the outside of an outer wall material such as concrete by a fixing means for fixing the body edge (see, for example, Patent Document 1).

JP 2004-251031 A

  However, when the trunk edge is disposed outside the outer wall material as in Patent Document 1 described above, the trunk edge has a smaller heat capacity than the outer wall material, and thus is easily affected by heat.

  Due to recent typhoons, even in relatively large buildings where the effects of thermal expansion and contraction are likely to occur, the difference in thermal expansion and contraction between the outer structure and the inner structure was not necessarily taken into account in terms of the fixing method. It was found that when the outer structure dropped out, it was discovered that the fixing means and the surrounding area were damaged by thermal expansion and contraction of the trunk edge. For this reason, if the outer edge of the shell is thermally expanded and contracted, the outer wall material may be damaged if the outer wall is a hard material such as concrete, or the outer wall may be soft, such as ALC (lightweight cellular concrete). In the case of this material, there is a possibility that the fixing means for the trunk edge may damage the outer wall material.

  The present invention solves the above-described problems, and an object thereof is to stabilize the trunk edge even when the trunk edge is thermally expanded and contracted in a configuration in which the trunk edge is disposed outside the outer wall material. Wall joint structure that can stably hold the joint portion between the upper trunk edge and the lower trunk edge even if the upper trunk edge and the lower trunk edge are thermally expanded and contracted Is intended to provide.

A first wall joint structure according to the present invention for achieving the above object is a wall joint structure, wherein a lateral trunk edge in which a guide portion is formed in the longitudinal direction, and the guide portion are slid in the longitudinal direction. a holding member gripping portion for rotatably gripping is formed by the horizontal furring strip fastener and a fixing means for fixing said holding member against the wall, the grip portion is the guide portion of the horizontal furring strips by grasping to have the guide portion and the gap, as the guide portion of the horizontal furring strip is slidable along said gripping portion, said horizontal furring strip is fixed against the wall, the horizontal furring strips are more disposed above and below the joint portion of the wall, on the horizontal furring strips disposed above the joint portion is erected pieces that extends in a vertical direction, and the from said standing piece An overhanging drainage plate having an overhanging portion inclined downward on the outer side of the joint portion, and an upper portion of the joint portion Is disposed and the upper exterior member becomes instrumentation is, below the horizontal furring strips disposed below the joint portion, discarded plate and from the lower horizontal furring strip is extended to an upper side of the joint portion A lower exterior material serving as an exterior under the joint, and the overhanging drainage plate is configured such that the front surface of the upright piece is in contact with the upper exterior material and the back surface is in contact with the upper portion of the discard plate. The lower part of the standing piece of the overhanging drainage plate is held by a Z-shaped step of the discard plate, and the overhanging portion is between the upper exterior material and the lower exterior material. It is the joint structure of the wall characterized by hold | maintaining so that it may protrude outside from.

  The second wall joint structure is characterized in that a waterproof seal is disposed between the overhanging portion of the overhanging water cutting plate and the lower exterior material. It is the joint structure of the wall as described in.

  According to the joint structure of the first wall, even if the trunk edge is thermally expanded and contracted, the trunk edge can be stably held, and is fixed to the trunk edge and is provided on the joint part of the wall. It is possible to stably support an exterior material that is disposed on the outside of the water discharge plate and the overhanging water discharge plate and fixed to the trunk edge. Further, even if the upper trunk edge and the lower trunk edge are thermally expanded and contracted, the joint portion between the upper trunk edge and the lower trunk edge can be stably protected.

  According to the joint structure of the second wall, it is possible to further reliably prevent water from entering the joint portion by using the water-stopping packing.

[First Embodiment]
An embodiment of a wall joint structure will be specifically described with reference to the drawings. First, the configuration of the first embodiment of the wall joint structure will be described with reference to FIGS. 1 to 4. 1 is an exploded perspective view showing the configuration of the first embodiment of the wall joint structure, FIG. 2 is a cross-sectional explanatory view showing the configuration of the first embodiment of the wall joint structure, and FIG. 3 is the first of the wall joint structure. 4 is a partially enlarged cross-sectional explanatory view showing the configuration of the embodiment, and FIG. 4 is a cross-sectional explanatory view showing the manner in which the bracket is fixed to the wall surface by the open leg nail in the first embodiment.

  1 to 3, reference numeral 2 denotes a wall joint structure. The joint structure 2 has a trunk edge 10 (upper trunk edge 10A, lower trunk edge 10B) for holding the exterior material 9 (upper exterior material 9A, lower exterior material 9B) above and below the joint part 5. The trunk edge 10 is fixed to the outer wall material 60 by the trunk edge fixture 1. Specifically, the trunk edge 10 is fixed to the wall surface 60 a of the outer wall material 60 so that the guide portion 12 of the trunk edge 10 can slide along the grip portion 21. The trunk edge fixture 1 includes a trunk edge 10 in which a guide portion 12 is formed in the longitudinal direction, and a holding member in which a gripping portion 21 that grips the guide portion 12 of the trunk edge 10 is slidable in the longitudinal direction. 20 and a fixing means (plate 30, open leg nail 40, bracket 50) for fixing the holding member 20 to the wall surface 60a of the outer wall member 60.

  First, the structure and procedure for attaching the trunk edge 10 to the outer wall member 60 will be described with reference to FIGS. Here, since the upper trunk edge 10A and the lower trunk edge 10B above and below the joint portion 5 are the same attachment method, the upper trunk edge 10A and the lower trunk edge 10B are not distinguished from each other as the attachment method of the trunk edge 10. explain. In FIG. 1, the state of the upper trunk edge 10A shows a state in which the trunk edge 10 is disassembled, and the state of the lower trunk edge 10B shows a state in which the attachment of the trunk edge 10 to the outer wall material 60 is completed.

  The trunk edge 10 has a rail-shaped guide part 12 projecting outward from the trunk part 11 in the longitudinal direction. Since the present embodiment has a horizontal body edge, the body part 11 is configured to be long in the lateral direction, and the guide part 12 disposed on the side surface of the body edge 10 protrudes from the body part 11 in the vertical direction.

  The holding member 20 has a holding portion 21 that protrudes in the surface direction of the holding member 20 in order to hold the guide portion 12 of the trunk edge 10 from both the upper and lower side surfaces. The grip portion 21 grips the guide portion 12 of the trunk edge 10, but grips the guide portion 12 so as to have a slight gap. Therefore, the guide portion 12 of the trunk edge 10 is slidably held by the holding portion 21. The holding member 20 is formed with a screw hole 22 through which the screw S passes. An opening 23 is provided at the center of the holding member 20.

  As shown in FIGS. 3A and 3C, the plate 30 abuts on the back surface of the holding member 20 and fixes the holding member 20 with screws S. A screw hole 31 (see FIG. 1) is formed in the center of the plate 30 for screwing a screw portion 51a (see FIG. 1) formed on an outer peripheral surface of a trunk edge side fixed shaft 51 of the bracket 50 described later. .

  The bracket 50 includes a trunk-side fixed shaft 51 projecting toward the trunk edge 10 side, an outer-wall-side fixed shaft 52 projecting toward the outer wall material 60 in the opposite direction, a trunk-edge-side fixed shaft 51, and an outer-wall-side fixed shaft 52. It has a flange portion 53 disposed between them and having a diameter larger than that of each of the shafts 51 and 52. The trunk edge side fixed shaft 51 is formed with a threaded portion 51 a that is screwed into the threaded hole 31 of the plate 30. Further, a through hole 51 b that penetrates in the axial direction of the bracket 50 is formed inside the trunk edge side fixed shaft 51 and the outer wall side fixed shaft 52.

  As shown in FIG. 1, the outer wall member 60 has a groove 61 for attaching the outer wall side fixed shaft 52 of the bracket 50. Although the outer wall material 60 of this embodiment is an example comprised by the ALC (lightweight cellular concrete) panel, the material of the outer wall material 60 is not specifically limited.

  When the body edge 10 is fixed to the outer wall member 60, as shown in FIG. 4A, first, the groove 61 of the outer wall member 60 is filled with the filler 3 such as mortar or adhesive, and the groove 61 is filled. The outer wall side fixed shaft 52 of the bracket 50 is inserted. In this state, the open leg nail 40 is driven into the outer wall material 60 through the through hole 51b of the bracket 50.

  When the open leg nail 40 is driven into the outer wall member 60 through the through hole 51b of the bracket 50, first, as shown in FIG. 4A, the first nail body of the open leg nail 40 is inserted into the through hole 51b of the bracket 50. 41 is inserted, and the first nail body 41 is driven on the outer wall member 60 (see FIG. 4B).

  The outer diameter of the leg opening control portion 41a provided at the tip of the nail body 41 is configured to have an outer diameter substantially the same as or larger than the outer diameter of the second nail body 42. The path front of the nail body 42 is previously opened by an opening leg control unit 41a that is integrally cast in the outer wall member 60.

  Then, as shown in FIG. 4B, the head 41 b of the first nail body 41 is locked to the through-hole peripheral portion 51 c of the bracket 50 in a state where the flange portion 53 of the bracket 50 is in contact with the outer wall material 60. To do. When the first nail body 41 is completely driven into the outer wall material 60 and the lower surface of the head 41b is locked to the through-hole peripheral portion 51c of the bracket 50, the first nail body 41 is inserted into the through-hole 51b of the bracket 50. The second nail body 42 is inserted along the nail body 41 and the head 42b of the second nail body 42 is driven. The nail body 42 is driven into the outer wall material 60 along the opening formed by the nail body 41 (see FIG. 4C).

  On the nail body 42 side of the leg opening control portion 41a, a guide surface 41a1 is provided for changing the advancing direction of the tip portion 42a of the nail body 42 to open the tip, and the head of the second nail body 42 is provided. The tip end portion 42a of the nail body 42 is guided along the guide surface 41a1 of the leg opening control portion 41a provided at the tip end portion of the first nail body 41 by driving the portion 42b. The advancing direction of 42a is changed and the tip of the nail body 42 is opened (see FIG. 2).

  Then, the head portion 42 b of the second nail body 42 is locked to the through-hole peripheral portion 51 c of the bracket 50 to fix the bracket 50 to the outer wall material 60.

  Next, as shown in FIG. 1, the screw holes 31 of the plate 30 are screwed into the screw portions 51 a of the bracket 50, and the plate 30 is screwed in the direction of the outer wall material 60.

  On the other hand, the trunk edge 10 is assembled and integrated with the holding member 20 in advance. When assembling, the two guide portions 12 of the trunk edge 10 are slid into the two gripping portions 21 of the holding member 20. Thereby, the trunk edge 10 is gripped by the holding member 20 and becomes integral.

  Next, the holding member 20 is arranged so that the screw hole 22 of the holding member 20 comes on the plate 30. In this state, the screw S is driven into the screw hole 22 of the holding member 20. Thereby, the trunk edge 10 is fixed to the plate 30.

  By taking the above procedure, the guide portion of the trunk edge 10 is obtained by the trunk edge fixture 1 having the trunk edge 10, the holding member 20, and the fixing means (plate 30, open leg nail 40, bracket 50). The trunk edge 10 is fixed to the wall surface 60 a of the outer wall material 60 so that 12 can slide along the grip portion 21 of the holding member 20.

  As described above, the trunk edge 10 fixed to be slidable in the longitudinal direction by the holding member 20 is disposed at least below the upper trunk edge 10A and the joint section 5 disposed above the joint section 5. There is a lower trunk edge 10B. The joint structure 2 is configured using the upper trunk edge 10A and the lower trunk edge 10B. This will be described with reference to FIGS.

  As shown in FIGS. 2 and 3, the upper trunk edge 10 </ b> A has an overhanging drainage plate 4 having an overhanging portion 4 b that is inclined downward on the outer side of the joint portion 5, and an upper portion that is an exterior above the joint portion 5. An exterior material 9A is disposed. On the other hand, on the lower waist edge 10B, a discard plate 6 extending from the lower waist edge 10B to the upper side of the joint portion 5 and a lower exterior material 9B serving as an exterior under the joint portion 5 are disposed. .

  As shown in FIG. 3 (b), the overhanging water cutting plate 4 is a plate-like body formed by bending the front and back of the overhanging portion 4 b into a Z-shaped cross section, and standing pieces 4 a extending in the vertical direction. And an overhanging portion 4b inclined downward from the upright portion 4a to the outside of the joint portion 5 and a hanging piece 4c hanging down from the overhanging portion 4b.

  As shown in FIGS. 3A to 3C, the discard plate 6 is an integral plate-like body, and the lower portion 6b is positioned on the front side of the upper portion 6a and the lower portion 6b as shown in FIGS. A step 6c having a Z-shaped cross section is provided. In addition, the magnitude | size of the level | step difference 6c is comparable as the thickness of the standing piece 4a of the overhanging water cutting board 4. FIG.

  With this configuration, as shown in FIGS. 3A to 3B, the upright piece 4 a of the overhanging draining plate 4 comes into contact with the upper exterior material 9 </ b> A and the back surface thereof is connected to the upper portion 6 a of the discard plate 6. It is sandwiched and held so as to abut. Further, the lower part of the upright piece 4 a of the overhanging draining plate 4 is held by a Z-shaped step 6 c of the discard plate 6. Thereby, the overhanging water cutting board 4 can be hold | maintained reliably.

  According to the present embodiment, even when the trunk edge 10 is thermally expanded and contracted, the outer edge member 60 is not damaged because the trunk edge 10 is slidable with respect to the holding member 20. Further, even if the exterior material 9, the overhanging water cutting plate 4, the overhanging water cutting plate 5, and the frame material 8 are thermally expanded and contracted, the outer wall material 60 is not damaged, and between the upper trunk edge 10A and the lower trunk edge 10B. A certain joint can be protected stably.

  And the overhang | projection part 4b is hold | maintained so that it may protrude outside from between the upper exterior material 9A and the lower exterior material 9B. Thereby, when water falls along the upper exterior material 9A, the water is discharged to the lower side outside the joint portion 5 after falling to the overhanging portion 4b, so that the water does not enter the joint portion 5. Absent. Therefore, the joint part 5 can be protected from intrusion of water.

  Moreover, as shown in FIG.3 (b), the water stop packing 7 is arrange | positioned between the overhang | projection part 4b of the overhanging water cutting board 4, and the lower exterior material 9B. If comprised in this way, it can prevent more reliably that water penetrate | invades into the joint part 5. FIG.

[Second Embodiment]
The configuration of the second embodiment of the wall joint structure according to the present invention will be described with reference to FIGS. 5 and 6. FIG. 5 is an exploded perspective view showing the configuration of the second embodiment of the wall joint structure, and FIG. 6 is a cross-sectional explanatory view showing the main part of the configuration of the second embodiment of the wall joint structure. In addition, what was comprised similarly to the said 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.

  Similarly to the first embodiment, the trunk edge fixture 1 of the present embodiment also has a trunk edge 10, a holding member 20 that holds the trunk edge 10, and fixing means for fixing the holding member 20 (plate 30, open leg nail 40, Bracket 50), and by these, the heat insulating material 70 is attached to the outer wall material 60, and the trunk edge 10 is fixed to the outer wall material 60.

  The heat insulating material 70 is sandwiched and disposed between the flange portion 53 of the bracket 50 and the plate 30. Further, the heat insulating material 70 is formed with a through hole 71 through which the trunk edge side fixed shaft 51 of the bracket 50 passes.

  On the wall surface 60a of the outer wall material 60, a seat carved portion 62 corresponding to the size of the flange portion 53 of the bracket 50 is formed continuously with the groove 61. By inserting the flange portion 53 of the bracket 50 into the carved portion 62, the wall surface 60a of the outer wall material 60 and the surface of the heat insulating material 70 can be in contact with each other without a step.

  Then, after the bracket 50 is fixed to the wall surface 60a of the outer wall material 60 by the open leg nail 40 in the same manner as in the first embodiment, the through hole 71 formed in the heat insulating material 70 is connected to the trunk edge side fixing shaft 51 of the bracket 50. The heat insulating material 70 is fitted into the bracket 50 so as to protrude. Thereby, as shown in FIG. 6, the threaded portion 51 a of the bracket 50 protrudes from the through hole 71 of the heat insulating material 70.

Next, the screw hole 31 of the plate 30 is screwed into the screw portion 51 a of the bracket 50, and the plate 30 is screwed in the direction of the heat insulating material 70. Then, the plate 30 is screwed into the screw portion 51a of the bracket 50, and the plate 30 is fixed by sandwiching the heat insulating material 70 between the flange portion 53 of the bracket 50. Other configurations are the same as those in the first embodiment, and the same effects can be obtained.
In the above-described embodiment, two upper trunk edges 10A and one lower trunk edge 10B are arranged above and below the joint portion 5 in total. However, the present invention is not limited to this. It may be arranged.

  The present invention can be applied to a joint structure of a wall in which a trunk edge is disposed outside an outer wall material.

The disassembled perspective view which shows the structure of 1st Embodiment of the joint structure of a wall. Cross-sectional explanatory drawing which shows the structure of 1st Embodiment of the joint structure of a wall. The partial expanded sectional explanatory view which shows the structure of 1st Embodiment of the joint structure of a wall. Cross-sectional explanatory drawing which shows a mode that a bracket is fixed to a wall surface with an open leg nail in 1st Embodiment. The disassembled perspective view which shows the structure of 2nd Embodiment of the lower structure of a wall. Cross-sectional explanatory drawing which shows the principal part of a structure of 2nd Embodiment of the lower structure of a wall.

Explanation of symbols

S ... Screw, 1 ... Trunk edge fixture, 2 ... Joint structure, 3 ... Filler, 4 ... Overhang drain plate, 4a ... Standing piece, 4b ... Overhang part, 4c ... Drooping piece, 5 ... Joint part, 6 ... Discard plate, 6a ... Upper part, 6b ... Lower part, 6c ... Step, 7 ... Water-proof packing, 9 ... Exterior material, 9A ... Upper exterior material, 9B ... Lower exterior material, 10 ... Trunk edge, 10A ... Upper trunk edge, 10B ... Lower trunk edge, 11 ... Body part, 12 ... Guide part, 20 ... Holding member, 21 ... Holding part, 22 ... Screw hole, 30 ... Plate, 31 ... Screw hole, 40 ... Open leg nail, 41 ... First Nail body, 41a ... leg opening control part, 41a1 ... guide surface, 42 ... second nail body, 42a ... tip part, 42b ... head, 50 ... bracket, 51 ... trunk side fixed shaft, 51a ... screw part, 51b ... through hole, 51c ... periphery peripheral edge, 52 ... outer wall side fixed shaft, 53 ... saddle part, 60 ... outer wall material, 60a ... wall surface, 61 ... groove, 62 ... seat carving part, 70 ... heat insulating material, 71 ... Through hole

Claims (2)

The joint structure of the wall,
A lateral trunk edge in which a guide portion is formed in the longitudinal direction; a holding member in which a gripping portion for gripping the guide portion so as to be slidable in the longitudinal direction; and a fixing means for fixing the holding member to a wall surface; the horizontal furring strip fasteners having,
The gripping part grips the guide part of the horizontal trunk edge so as to have a gap with the guide part, so that the guide part of the horizontal trunk edge can slide along the gripping part. , The lateral trunk edge is fixed to the wall surface,
A plurality of the horizontal trunk edges are disposed above and below the joint portion of the wall,
On the horizontal furring strip which is disposed above the joint portion, the standing piece that extends vertically, and overhanging having overhanging portion inclined toward the outside below the joint portion from the standing piece drained A plate and an upper exterior material serving as an exterior above the joint,
Wherein the lower horizontal furring strip disposed below the joint portion, a lower exterior member extending from the lower horizontal furring strip to the top side of the joint portion was discarded plate and the exterior below the joints And are arranged,
The overhang drain plate is
The upright piece is sandwiched and held so that the front surface is in contact with the upper exterior material and the back surface is in contact with the upper portion of the discard plate,
The lower part of the upright piece of the overhanging drainage plate is held by a Z-shaped step of the discard plate,
The wall joint structure is characterized in that the overhanging portion is held so as to protrude from between the upper exterior material and the lower exterior material. The wall joint structure according to claim 1, wherein a water-stopping packing is disposed between the overhanging portion of the overhanging water cutting plate and the lower exterior material.

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