JP5058568B2 - Exterior wall structure - Google Patents

Description

  The present invention relates to an outer wall structure of a building.

  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-mentioned problems, and an object of the present invention is to easily and reliably fix the trunk edge to the outer wall material in a configuration in which the trunk edge is disposed outside the outer wall material. It is intended to provide an outer wall structure that can stably hold the trunk edge even when the heat expands and contracts.

In order to achieve the above object, a first outer wall structure according to the present invention has a lateral trunk edge in which a guide portion is formed in the longitudinal direction, and has a slight gap between the guide portion and the guide portion in the longitudinal direction. The guide part of the lateral trunk edge is gripped by a trunk edge fixing tool having a holding member formed with a gripping part for movably gripping and a fixing means for fixing the holding member to the wall surface of the outer wall material. The lateral trunk edge is fixed to the wall surface so as to be slidable along the portion, and the fixing means includes a plate-like body to which the holding member is attached, and a bracket to which the plate-like body is screwed. And an open leg nail is used to fix the bracket to the wall surface, and the open leg nail comprises first and second nail bodies that are driven into the outer wall material. An opening leg control unit is provided at the tip, and the second leg control unit performs the second leg control unit. The tip of the body, characterized by comprising the open leg.

  The second outer wall structure according to the present invention includes a body edge on which a guide portion is formed in the longitudinal direction, a holding member on which a gripping portion is formed that slidably holds the guide portion in the longitudinal direction, and the holding member The barrel edge is fixed to the wall surface by a barrel edge fixture having a fixing means for fixing the barrel edge to the wall surface so that the guide portion of the trunk edge can slide along the gripping portion. The fixing means includes a plate-like body to which the holding member is attached, a bracket to which the plate-like body is screwed, and an open leg nail for fixing the bracket to a wall surface. On the wall surface to which the portion is attached, a seated portion is formed so that the flange portion and the wall surface are flush with each other.

  A third outer wall structure according to the present invention includes a trunk edge formed with a guide portion in a longitudinal direction, a holding member formed with a grip portion that slidably holds the guide portion in the longitudinal direction, and the holding member The barrel edge is fixed to the wall surface by a barrel edge fixture having a fixing means for fixing the barrel edge to the wall surface so that the guide portion of the trunk edge can slide along the gripping portion. An exterior material is fixed to the trunk edge.

According to the first outer wall structure, by using the open leg nail, the fixing means including the open leg nail can be easily attached to the wall surface. On the other hand, since the open leg nail prevents the fixing means from coming off, the holding member fixed to the fixing means is also securely fixed to the wall surface. Therefore, to prevent loss of lateral furring strip that is held by the holding member can be reliably fixed to the wall. In addition, since the trunk edge is configured to be slidable at the holding portion of the holding member, the trunk edge guide portion slides within the holding portion of the holding member even when the trunk edge is thermally expanded and contracted. Thus, the trunk edge can be stably held.

  According to the 2nd outer wall structure, since the collar part and wall surface of a bracket become the same plane, when installing a heat insulating material, a heat insulating material can be arrange | positioned reliably. Moreover, even when the trunk edge is thermally expanded and contracted, the trunk edge can be stably held.

  According to the third outer wall structure, even when the trunk edge is thermally expanded and contracted, the trunk edge can be stably held, and the exterior material attached to the trunk edge can also be stably held.

  An embodiment of the outer wall structure according to the present invention will be specifically described with reference to the drawings.

[First Embodiment]
First, the configuration of the first embodiment of the outer wall structure according to the present invention will be described with reference to FIGS. 1 is an exploded perspective view showing the configuration of the first embodiment of the outer wall structure according to the present invention, FIG. 2 is a cross-sectional explanatory view showing the configuration of the first embodiment of the outer wall structure according to the present invention, and FIG. 3 is the first embodiment. In form, it is sectional explanatory drawing which shows a mode that a bracket is fixed to a wall surface by an open leg nail.

  1 and 2, reference numeral 2 denotes an outer wall structure, and a body edge 10 in which a guide part 12 is formed in the longitudinal direction, and a gripping part 21 that grips the guide part 12 of the body edge 10 so as to be slidable in the longitudinal direction. A waistband fixture having a holding member 20 formed with a fixing member and fixing means for fixing the holding member 20 to the wall surface 60a of the outer wall member 60 (plate 30 as a plate-like body, open leg nail 40, bracket 50). 1, the trunk edge 10 is fixed to the wall surface 60 a of the outer wall material 60 so that the guide part 12 of the trunk edge 10 can slide along the gripping part 21.

  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 protrudes from the body part 11 in the vertical direction.

  The holding member 20 has a gripping portion 21 that protrudes in the surface direction of the holding member 20 in order to grip 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. 1 and 2, the plate 30 abuts against the back surface of the holding member 20 and fixes the holding member 20 with screws S. A screw hole 31 is formed at the center of the plate 30 for screwing a screw portion 51a formed on the 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.

  The outer wall material 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, first, as shown in FIG. 3A, 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. Then, the bracket 50 is positioned with respect to the outer wall material 60. 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, the first nail body of the open leg nail 40 is inserted into the through hole 51b of the bracket 50 as shown in FIG. Insert 41. Then, as shown in FIG. 3B, the first nail body 41 is driven on the outer wall material 60.

  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.

  3B, the head 41b of the first nail body 41 is locked to the peripheral edge 51c of the through hole of the bracket 50 with the flange 53 of the bracket 50 in contact with the outer wall member 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. Then, as shown in FIG. 3 (c), the nail body 42 is driven into the outer wall material 60 along the opening formed by the nail body 41.

  As shown in FIG. 3, on the second nail body 42 side of the leg opening control portion 41a, a guide surface 41a1 for changing the advancing direction of the tip portion 42a of the second nail body 42 and opening the tip. Is provided. Then, when the head portion 42b of the second nail body 42 is driven, the front 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 front end portion of the first nail body 41. Is done. Thereby, the advancing direction of the front-end | tip part 42a of the nail body 42 is changed, and the front-end | tip of the nail body 42 is opened (refer FIG. 2).

  Then, when 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, the bracket 50 is fixed to the outer wall material 60. Thus, by fixing the bracket 50 using the open leg nail 40, the bracket 50 is more reliably fixed to the outer wall member 60 than using a normal nail.

  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. At the time of this assembly, the upper and lower 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 the trunk edge 10 and the holding member 20 are integrated.

  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. As a result, 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 exterior material 9 is attached to the body edge 10 fixed by the holding member 20 so as to be slidable in the longitudinal direction using screws S.

  As described above, according to the outer wall structure 2, since the space between the guide portion 12 of the trunk edge 10 and the grip portion 21 of the holding member 20 is configured to be slidable, it is disposed outside the outer wall material 60. Even when the trunk edge 10 is thermally expanded and contracted, the holding member 20 and the fixing means are not affected, and the trunk edge 10 can be stably held. As a result, the exterior material 9 fixed to the trunk edge 10 can also be stably supported.

[Second Embodiment]
Next, the structure of 2nd Embodiment of the outer wall structure based on this invention is demonstrated using FIG. 4A is an exploded perspective view showing the configuration of the second embodiment of the outer wall structure according to the present invention, and FIG. 4B is a cross-sectional view showing the main part of the configuration of the second embodiment of the outer wall structure according to the present invention. It is explanatory drawing. In addition, what was comprised similarly to 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 disposed so as to be sandwiched between the flange portion 53 of the bracket 50 and the plate 30, and 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 collar portion 53 of the bracket 50 is formed continuously with the groove 61, and the collar portion 53 of the bracket 50 is fitted into the seat carved portion 62. . Thereby, the wall surface 60a of the outer wall material 60 and the surface of the heat insulating material 70 are on the same plane, and can contact 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.4 (b), it will be in the state which the thread part 51a of the bracket 50 protruded from the through-hole 71 of the heat insulating material 70. As shown in FIG.

  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.

  As an application example of the present invention, the trunk edge can be applied to the outer wall configuration of various buildings.

It is a disassembled perspective view which shows the structure of 1st Embodiment of the outer wall structure which concerns on this invention. It is a section explanatory view showing the composition of a 1st embodiment of the outer wall structure concerning the present invention. In 1st Embodiment, it is cross-sectional explanatory drawing which shows a mode that a bracket is fixed to a wall surface with an open leg nail. It is a disassembled perspective view and principal part sectional explanatory drawing which show the structure of 2nd Embodiment of the outer wall structure which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS S ... Screw, 1 ... Body edge fixing tool, 2 ... Outer wall structure, 3 ... Filler, 9 ... Exterior material, 10 ... Body edge, 11 ... Body part, 12 ... Guide part, 20 ... Holding member, 21 ... Holding part 22 ... Screw hole, 23 ... Opening part, 30 ... Plate, 31 ... Screw hole, 40 ... Open leg nail, 41 ... First nail body, 41a ... Open leg control part, 41a1 ... Guide surface, 41b ... Head 42 ... 2nd nail body, 42a ... tip part, 42b ... head, 50 ... bracket, 51 ... trunk edge side fixed shaft, 51a ... screw part, 51b ... through hole, 51c ... peripheral part of through hole, 52 ... outer wall Side fixed shaft, 53 ... collar, 60 ... outer wall material, 60a ... wall surface, 61 ... groove, 62 ... seated part, 70 ... heat insulating material, 71 ... through hole

Claims (3)

A horizontal trunk edge in which a guide portion is formed in the longitudinal direction, a holding member having a slight gap with the guide portion and slidably gripping the guide portion in the longitudinal direction, and the holding member The horizontal trunk edge is fixed to the wall surface of the outer wall material by the trunk edge fixture so that the guide part of the horizontal trunk edge can slide along the grip part. Fixed against
The fixing means includes
A plate-like body to which the holding member is attached;
A bracket to which the plate-like body is screwed and attached;
Use an open leg nail to fix the bracket to the wall ,
The open leg nail includes first and second nail bodies that are driven into the outer wall material, and an open leg control unit is provided at a tip of the first nail body, and the open leg control unit The outer wall structure is characterized in that the tip of the second nail body is opened by the above . A body edge formed with a guide portion in the longitudinal direction, a holding member formed with a gripping portion for slidably holding the guide portion in the longitudinal direction, and a fixing means for fixing the holding member to the wall surface The trunk edge is fixed with respect to the wall surface so that the guide part of the trunk edge can be slid along the grip portion by the trunk edge fixing tool having
The fixing means includes a plate-like body to which the holding member is attached, a bracket to which the plate-like body is screwed, and an open leg nail for fixing the bracket to a wall surface.
An outer wall structure, wherein a wall surface to which the flange portion of the bracket is attached is formed with a seated portion so that the flange portion and the wall surface are flush with each other.   The outer wall structure according to claim 1, wherein an exterior material is fixed to the body edge.

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