JP4782919B2 - Panel joint structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a panel joining structure, and more particularly to a structure of a packing material inserted in a joint portion between panels.
[0002]
[Prior art]
Conventionally, when a plurality of panels are joined to form an outer wall of a building, a convex portion is provided at one end of one adjacent panel, and a concave portion in which the convex portion is fitted is provided at one end of the other panel. By fitting the convex part of the panel into the concave part of the other panel, the end parts of the panels are joined to each other.
[0003]
[Problems to be solved by the invention]
However, in the conventional concave-convex fitting structure, if the gap between the convex portion and the concave portion is eliminated, the convex portion becomes difficult to insert into the concave portion, and conversely, if the insertion is attempted to be easy, the convex portion and the concave portion As a result, it was difficult to satisfy both the fitting property and the sealing property. In particular, in order to absorb the panel width tolerance, it is necessary to adjust the joint width. However, if the joint width is to be increased, the insertion depth of the convex portion must be reduced. As a result, the joint width is limited. In addition, it is necessary to separately apply caulking to the joints between the panels, not only is the application of the caulking agent troublesome, but the construction is easily affected by the weather, and the caulking agent takes time to dry, There are also problems such as unevenness on the surface of the caulking agent, resulting in poor finish, and water resistance being impaired due to variations in the amount of caulking or deterioration of the caulking agent. In addition, when the conventional concave / convex fitting portion is made waterproof with a packing material, it is necessary to interpose the packing material between the concave and convex portions when connecting the panels. However, there was also a problem that the packing material could not be attached, and the packing material retrofit system could not be adopted. In addition, in the conventional uneven fitting method, it is necessary to construct a wall or the like by connecting a plurality of panels in order, and for this purpose, for example, a part of the wall is left as a work space and finally a work space. There was also a problem that it was not possible to adopt a retrofitting method in which a single panel was fitted.
[0004]
The present invention has been made in view of the above-described conventional example. The object of the present invention is to facilitate joining between panels and to have a waterproof property, and the joint width can be adjusted. Such a caulking process is unnecessary, and it is possible to obtain a good finish in a short time without being influenced by the weather. In addition, it is possible to retrofit the packing material after panel construction, greatly improving the construction efficiency. Is to provide a panel joining structure that can
[0005]
[Means for Solving the Problems]
In order to solve the above problems, in the present invention, the first groove 3 is formed at one end of one adjacent panel and the second groove 3 is opposed to the first groove 3 at one end of the other panel. A groove 4 is formed, and a packing material 5 is interposed between the first and second grooves 3, 4, and the packing material 5 extends from the joint portion 7 between the panels to the first and second grooves 3, 4. A core portion 13 inserted between the core portion 13, a plurality of fin pieces 11 protruding from both sides of the core portion 13 and having respective tips elastically contacting the inner surfaces of the first and second concave grooves 3 and 4, and the joint portion 7. The closing portion 12 that is closed is integrally formed, and the core portion 13 is formed in a hollow shape by a V-shaped portion 13a and arc-shaped portions 13b that are connected to both ends of the V-shaped portion 13a. The V-shaped portion 13a can be freely bent in the closing direction (a), and the plurality of fin pieces 11 are connected to the core portion 13. Together from both ends of the arcuate portion 13b toward the opposite direction are projected, the closing portion 12 is protruded toward the opposite directions from the proximal end of the V-shaped portion 13a of the core portion 13 With this configuration, the V-shaped portion 13a of the core portion 13 can be freely bent in the closing direction (i), so that the structure can be easily inserted into the joint portion 7. In addition, after the insertion into the joint portion 7, the V-shaped portion 13 a of the core portion 13 returns to the opening direction B, and accordingly, the plurality of fin pieces 11 are opened to bite into the interior packing 15 of the concave grooves 3 and 4. In addition, the joint portion 7 can be reliably closed by the closing portion 12 to prevent water from entering from the joint portion 7, and at the same time, the plurality of fin pieces 11 elastically contacting the concave grooves 3 and 4 are not inclined. The watertightness of the joint portion 7 can be secured. Accordingly, the core portion 13 with the fin piece 11 is fixed without being inclined or displaced between the first and second concave grooves 3 and 4, and a sufficient water stop effect by the packing material 5 is obtained. Further, even if water enters from the blocking portion 12, the water is prevented from flowing into the indoor side F by the plurality of fin pieces 11, thereby further ensuring water tightness. As a result, the conventional caulking process is not required, so that the construction can be performed easily and at low cost in a short time without being influenced by the weather, and the finishing performance and waterproofness are improved. Moreover, it becomes possible to attach the packing material 5 to the joint part 7 by inserting it after constructing the panel. Furthermore, by simply changing the dimensions of the packing material 5 according to the size of the joint width D, the size of the joint width D can be easily accommodated while ensuring waterproofness.
[0006]
The packing material 5 is made of an elastic material such as rubber. The packing material 5 protrudes from both side surfaces on the distal end side of the core 13 and the first and second concave grooves 3, 4. A pair of left and right fin pieces 11 that elastically contact the inner surface and a closing portion 12 that protrudes from the proximal end side of the core portion 13 and closes the joint portion 7 are integrally formed, and each length of the pair of left and right fin pieces 11 is The length M is preferably shorter than the inner dimension N between the fin piece 11 and the closing portion 12 in the core portion 13. In this case, if both the fin pieces 11 are picked with fingers and the core portion 13 is sandwiched from both sides, the expansion and contraction occurs. The free hollow core portion 13 is crushed and the entire thickness of the core portion 13 and both fin pieces 11 is reduced, so that the core portion 13 and both fin pieces 11 can be easily inserted into the joint portion 7. The packing material 5 is attached to the joint 7 because the tip of The thickness of the closing portion 12 can be prevented from thickening the fin piece 11 during the entry, closure portion 12 is also easily inserted into the joint portion 7. Further, both fin pieces 11 open inside the concave grooves 3 and 4 and elastically contact the inner surfaces of the concave grooves 3 and 4, and the closing portion 12 closes the joint portion 7, thereby closing the joint portion 7 by the closing portion 12. It is possible to prevent the tilting of the pair of left and right fin pieces 11 at the same time.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0008]
In this example, as shown in FIG. 6, a description will be given of a joint structure between panel units 2 including a plurality of panel units 1. In the example shown in FIG. 6, among the plurality of panel singles 1 constituting the panel unit 2, the convex part 21 is fitted to one end 1 a of the panel single 1 adjacent in the lateral direction A, and the convex part 21 is fitted to the other end 1 b. The recesses 22 are provided, and the end portions 1a and 1b of the adjacent panel unit 1 are joined to each other by the fitting of the projections 21 and the recesses 22, and these are the base steel frames constituting the horizontal trunk edges. One panel unit 2 is configured by being attached to the material 23. Reference numeral 14 in FIG. 6 denotes a pillar material that supports the base steel frame material 23. Further, the number and arrangement of the single panels 1 constituting one panel unit 2 are not particularly limited.
[0009]
A first concave groove 3 is formed at one end 2a of the panel unit 2 (here, the end 1a of the panel unit 1 positioned on the rightmost side of the panel unit 1 constituting the panel unit 2 shown in FIG. 6). Has been. In addition, a second groove 4 is formed at a position facing the first groove 3 at the other end 2b of the panel unit 2 (here, the end 1b of the panel unit 1 located on the leftmost side). . In the state in which the end portions 2a and 2b of the panel unit 2 adjacent to each other in the lateral direction A are abutted with each other, the first groove 3 and the second groove 4 are arranged to face each other. A packing material 5 or 5 ′ described later is interposed between the first and second concave grooves 3 and 4. That is, in this example, the panel units 1 and 1 constituting the panel unit 2 are joined by the same concave / convex fitting as in the prior art, but the panel units 2 and 2 are joined by concave / convex joining.
[0010]
As shown in FIG. 1, the panel unit 1 is configured by filling a core material 10 made of a heat insulating material between a metal skin 8 and a metal skin 9. For example, rock wool, glass wool, urethane foam or the like is used as the heat insulating material. The first and second concave grooves 3 and 4 provided in the panel unit 1 are formed in a U-shaped cross section in a plan view, and the end portions 8a and 9a of the metal outer skin 8 and the metal inner skin 9 are formed on the bottom side. They are bent so as not to contact each other and embedded in the core material 10. An inner packing 15 is provided over the substantially entire length of the bottom portion of each of the concave grooves 3 and 4, but the inner packing 15 is not necessarily required.
[0011]
A packing material 5 is interposed between the first and second concave grooves 3 and 4. As shown in FIGS. 1 and 2, the packing material 5 is made of an extrusion-molded product made of an elastic material such as rubber. The packing material 5 has a hollow core 13 that can be expanded and contracted and both side surfaces on the tip side of the core 13. A pair of left and right fin pieces 11 protruding and elastically contacting the inner surfaces of the first and second concave grooves 3 and 4, and a pair of left and right fin-like blocking portions protruding from the proximal end side of the core portion 13 and closing the joint portion 7. 12 are integrally formed. Here, the telescopic hollow core 13 includes a V-shaped portion 13a and arc-shaped portions 13b connected to both ends of the V-shaped portion 13a. The V-shaped portion 13a is closed. (B) can be freely bent. The pair of left and right fin pieces 11 project from both ends of the arc-shaped portion 13 b of the core portion 13 in opposite directions, and the pair of left and right fin-shaped blocking portions 12 are V-shaped of the core portion 13. It protrudes in the opposite direction mutually from the base end of the shaped part 13a.
[0012]
Then, as shown in FIG. 2B, when both fin pieces 11 are picked with fingers and sandwiched between both side surfaces of the core portion 13, the arc-shaped portion 13b is elastically deformed and the V-shaped portion 13a is closed. The core portion 13 and the fins 11 are reduced in overall thickness and are easy to insert into the joint portion 7. After insertion into the joint portion 7, the V-shaped portion 13 a of the core portion 13 is As shown in FIG. 1, it returns to the opening direction B by the elastic restoring force of the arc-shaped portion 13b, and accordingly, both fin pieces 11 are opened and elastically contact the interior packing 15 of the concave grooves 3 and 4.
[0013]
Here, claw portions 31 that can bite into the interior packing 15 on the bottom surfaces of the concave grooves 3 and 4 are provided at the tips of the fin pieces 11. The interior packing 15 is made of EPT rubber, for example. Further, each length M of both fin pieces 11 is shorter than the inner dimension N between the fin piece 11 and the closing portion 12 in the core portion 13. Thus, even when the fins 11 are picked with fingers and the core 13 is sandwiched from both sides, the tips of the fins 11 do not reach the closing part 12 and the packing material 5 is inserted into the joint part 7. The thickness of the blocking portion 12 can be prevented from being increased by the fin pieces 11, and the blocking portion 12 can be easily inserted into the joint portion 7. Further, the closed portion 12 is formed in a slightly tapered shape so as to be easily inserted into the joint portion 7, and the entire width dimension of the closed portion 12 is longer than at least the width dimension D (for example, 25 mm) of the joint portion 7. It is a dimension (for example, 34 mm), and has a structure capable of watertightly closing the joint portion 7.
[0014]
Thus, when both fin pieces 11 are picked with fingers and the core portion 13 is sandwiched from both sides, the V-shaped portion 13a of the core portion 13 bends in the closing direction A, and the thickness of the core portion 13 and both fin pieces 11 as a whole. In this state, with the arc-shaped portion 13b of the core portion 13 as a head, the core portion 13 and both fin pieces 11 are inserted into the joint portion 7, and then the closing portion 12 is inserted into the joint portion 7. . At this time, the tips of the two fin pieces 11 do not reach the closing portion 12, thereby preventing the thickness of the closing portion 12 from being increased by the fin pieces 11 when the packing material 5 is inserted into the joint portion 7. 12 also becomes easy to insert into the joint part 7.
[0015]
Further, when both fin pieces 11 pass through the joint portion 7 and enter the inside of the concave grooves 3, 4, the V-shaped portion 13 a of the core portion 13 is in an open state. At the same time, the claw portion 31 provided in the groove 3 bites into the interior packing 15 in the grooves 3 and 4, and at the same time, the closing portion 12 is opened to close the joint portion 7. In this way, when the fin piece 11 bites into the interior packing 15, the closing portion 12 is held in a state of being pressed in the direction of closing the joint portion 7, whereby the closing portion 12 is blocked by the closing portion 12. This is surely performed, so that the intrusion of water from the joint portion 7 can be prevented, and at the same time, the pair of left and right fin pieces 11 are held without tilting, and the water tightness of the joint portion 7 can be secured. Even if water enters from the blocking portion 12, the pair of left and right fin pieces 11 prevents the water from flowing into the indoor side F, thereby further ensuring water tightness.
[0016]
Moreover, since the joint part 7 can be obstruct | occluded by the obstruction | occlusion part 12, it becomes unnecessary to use the conventional caulking agent, and the effort concerning a caulking process can be saved, As a result, construction is not influenced by the weather. It can be performed easily and at low cost in a short time, and finish and waterproof properties are improved.
[0017]
Moreover, it becomes possible to easily cope with the size of the joint width D while ensuring waterproofness only by changing the width dimension of the closing portion 12 of the packing material 5 according to the size of the joint width D. Adjustment is easy. Furthermore, the fin piece 11 can absorb the deformation of the panel and the displacement at the time of construction, so that both the fitting property between the panels and the sealing property can be satisfied. Even if stress such as displacement occurs between the two, it can be absorbed by the fin 11 having elasticity, so that it is not subjected to stress such as displacement during an earthquake, and the earthquake resistance can be improved. .
[0018]
As a modification of the packing material 5, as shown in FIG. 4, a thick reinforcing portion 32 is integrally provided on the back side of the closing portion 12, and the reinforcing portion 32 is fitted to the joint portion 7. Good. By fitting the reinforcing portion 32 to the joint portion 7, the pair of left and right fin pieces 11 can be fixed so as not to be inclined, thereby further improving the watertightness.
[0019]
The width dimension D ′ (FIG. 4) of the joint portion 7a on the indoor side F of the panel 1 is about 15 to 25 mm. For example, the portion indicated by C in FIG. It is also possible to have a structure with a wide joint width.
[0020]
FIG. 5 shows another example of the packing material 5 ′. The packing material 5 ′ of this example is formed of an elastic material such as rubber and has a substantially T-shaped cross section, and extends over substantially the entire length in the vertical direction B of the grooves 3 and 4. The packing material 5 ′ has a core portion 13 inserted between the first and second concave grooves 3, 4, and protrudes from both sides of the core portion 13, and each tip is formed in each of the first and second concave grooves 3, 4. A pair of left and right fin pieces 11 that elastically contact the inner surface and a closing portion 12 that is fixed to the joint portion 7 on the outdoor side E by insertion and closes the joint portion 7 are integrally formed. Here, when the core portion 13 is pushed into the joint portion 7 from the outdoor side E, as shown in FIG. 7, the pair of left and right fin pieces 11 bend in the direction in contact with both side surfaces of the core portion 13, respectively. 13 and the fin piece 11 are configured to be able to pass through the joint portion 7, and after passing through the joint portion 7, the tip of the fin piece 11 is attached to the interior packing 15 provided on each inner surface of the concave grooves 3 and 4, respectively. It is configured so that it can be elastically contacted and the closing portion 12 can be inserted into the joint portion 7. As a result, the closed portion 12 is fixed in a state of covering the joint portion 7. The number of fins 11 is not limited to a pair of left and right, but may be two or more pairs.
[0021]
Thus, just by pushing the core portion 13 from the outdoor side E into the joint portion 7, the joint portion 7 can be closed by the closing portion 12 as well as the embodiment shown in FIG. Since the core portion 13 with the fin piece 11 can be fixed without being inclined or displaced between the first and second concave grooves 3 and 4, the packing material 5 'can be bonded to the joint. It is securely fixed inside the portion 7, and a sufficient water stop effect by the packing material 5 'can be obtained. In addition, as shown in FIG. 8, you may make it the outer end surface of the fin piece 11 of the core part 13 contact the joint part 7a of the indoor side F. As shown in FIG. In this case, the contact location of packing material 5 'and a panel increases, and the fixed state of packing material 5' can be stabilized more.
[0022]
Further, in this example, since the fin pieces 11 on both sides of the core portion 13 are bent and inserted into the joint portion 7, the mounting work of the packing material 5 ′ is accelerated. Since there is a gap between the part 7 and the rainwater infiltrate from the joint 7, the rainwater will flow down through this gap, causing leakage to the back of the panel. As a result, the waterproof property between the panel units 1 and 1 can be maintained over a long period of time, and maintenance is not required.
[0023]
By the way, during the construction of the wall made up of a plurality of panel units 2, a work space serving as a doorway for a person or a machine is provided in advance, and the plurality of panel units 2 are installed with the work space remaining. In some cases, the work space is closed with the last panel unit to complete the wall. However, in the present invention, since the concave connection structure is adopted, the last panel unit is fitted between the adjacent panel units 2. In addition, the packing material 5 'of the present invention can be mounted from the joint portion 7 on the outdoor side E after the panel construction, and the packing material 5 that could not be realized by the conventional uneven fitting structure. There is also an advantage that a retrofit method can be adopted. In the example of FIG. 9, the joint portion 7 a on the indoor side F is covered with a closing plate 50, and the closing plate 50 is fixed to the metal inner skin 9 of the adjacent panel with a stopper 51. The closing plate 50 is attached for the purpose of preventing the sound insulation property of the joint portion 7 from being lowered. However, the closing plate 50 is not particularly necessary and can be omitted.
[0024]
In each of the above embodiments, the case where the panel units 2 and 2 are joined together by the concave and convex joint structure has been described. However, the panel units 1 constituting the panel unit 2 of FIG. 6 may be joined by the concave and convex joint structure. is there.
[0025]
【The invention's effect】
As described above, in the first aspect of the invention, the first concave groove is formed at one end of one adjacent panel, and the second concave is opposed to the first concave groove at one end of the other panel. A groove is formed, and a packing material is interposed between the first and second concave grooves. The packing material is inserted between the first and second concave grooves from the joint between the panels, and the core part. A plurality of fin pieces projecting from both sides of the first and second tips and elastically contacting the inner surfaces of the first and second concave grooves are integrally formed with a closing portion for closing the joint portion, and the core portion is V-shaped. The V-shaped part and the arc-shaped part connected to both ends of the V-shaped part are formed in a hollow shape, and the V-shaped part can be freely bent in the closing direction. Are protruded in opposite directions from both ends of the arc-shaped portion of the core portion, and the closing portion is formed of the core portion. Since the proximal end of the shaped portion is projected toward the opposite directions, only push the core in the joint portion, and at the same time it is possible to close the joint portion by the blocking portion, fixing the closing portion to the joint portion As a result, the core with fins can be fixed without tilting or shifting between the first and second grooves, and a sufficient water-stopping effect can be obtained with the packing material. Since the processing can be omitted, the construction can be done easily and at low cost in a short time without being influenced by the weather, and the finish and waterproofing are improved. Since it becomes possible to attach to a joint part by insertion, construction efficiency can be improved significantly. Furthermore, by simply changing the dimensions of the packing material to match the joint width, the joint width can be easily adjusted while ensuring waterproofness, and the joint width can be easily adjusted. And as a result of absorbing the displacement at the time of construction, it is possible to satisfy both the fitting property and the sealing property between the panels. Further, even when a stress such as displacement occurs between the panels during an earthquake, it can be absorbed by the fin pieces, so that the stress such as displacement is not received during the earthquake, and the earthquake resistance can be improved. Furthermore, by adopting a concave-concave fitting method between panels or panel units, for example, a retrofitting method in which a part of the wall is left as a working space, and finally the panel alone or the panel unit is fitted into this working space without gaps. Can be adopted.
[0026]
In addition to the effect of the first aspect, the packing material is made of an elastic material such as rubber and protrudes from a stretchable hollow core portion and both side surfaces on one end side of the core portion. And a pair of left and right fin pieces elastically contacting the inner surfaces of the first and second concave grooves, and a pair of left and right closing portions projecting from both side surfaces on the other end side of the core portion to close the joint portion. In addition, the length of the pair of left and right fin pieces is shorter than the inner dimension between the fin piece and the closed portion in the core portion. The hollow core of the hollow shape is crushed and the thickness of the core and both fins is reduced, making it easier to insert the core and both fins into the joint. At this time, the tips of both fins are closed Therefore, when inserting the packing material into the joint, the thickness of the blocking part It can be prevented from becoming thicker I, also easily inserted into the joint portion occlusion. Further, both fin pieces open inside the concave groove and elastically contact the inner surface of the concave groove, and the closing portion closes the joint portion, so that the joint portion is reliably closed by the closing portion, and the pair of left and right fin pieces 11 As a result, the watertightness of the joint can be secured.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of an embodiment of the present invention.
FIG. 2A is a front view of the above packing material, and FIG. 2B is a front view showing a state in which a fin piece of the packing material is bent.
FIG. 3 is an explanatory diagram when the packing material is press-fitted into the joint.
FIG. 4 is an explanatory view of a modified example of the packing material.
FIG. 5 is a plan sectional view showing another embodiment.
FIG. 6 is a plan view illustrating a joined state between the panel units same as above.
FIG. 7 is an explanatory diagram when the packing material is inserted into the joint.
FIG. 8 is an explanatory diagram of still another embodiment.
FIG. 9 is an explanatory view showing a state in which a closing plate is attached.
[Explanation of symbols]
3 First concave groove 4 Second concave groove 5, 5 ′ Packing material 7 Joint portion 11 Fin piece 12 Closure portion 13 Core portion M Fin piece length N Core portion length

Claims (2)

A first groove is formed at one end of one adjacent panel, a second groove opposite to the first groove is formed at one end of the other panel, and packing is provided between the first and second grooves. The packing material includes a core portion inserted between the first and second concave grooves from the joint portion between the panels, and protrudes from both sides of the core portion, and each tip has the first and second concave portions. A plurality of fin pieces that elastically contact each inner surface of the groove and a closing portion that closes the joint portion are integrally formed, and the core portion is connected to both ends of the V-shaped portion and the V-shaped portion. The V-shaped part is flexible in the closing direction, and the plurality of fin pieces are opposite to each other from both ends of the arc-shaped part of the core part. The blocking portion extends in the opposite direction from the base end of the V-shaped portion of the core portion. Junction structure of a panel, characterized in that it is projected. 2. The panel joining structure according to claim 1, wherein the packing material is made of an elastic material such as rubber, and is capable of extending and contracting from a telescopic hollow core portion and both side surfaces on the tip side of the core portion. A pair of left and right fin pieces elastically contacting each inner surface and a closing portion protruding from the base end side of the core portion and closing the joint portion are integrally formed, and the lengths of the pair of left and right fin pieces are The panel joining structure is characterized in that it is shorter than the internal dimension between the fin piece and the closed part in the part.

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