Patent Publication Number: US-10774520-B2

Title: Column frame structure for prefabricated house

Description:
TECHNICAL FIELD 
     The present invention relates to a column frame structure for a prefabricated house which is produced in a factory and is assembled locally, which enhances the efficiency of transportation and design and which can maintain waterproof performance. 
     BACKGROUND ART 
     Conventionally, as this type of prefabricated house, folding prefabricated houses disclosed in patent literatures 1 and 2 are proposed. 
     The holding prefabricated house disclosed in patent literature 1 is previously proposed by the present applicant, a column frame, a wall panel and the like are folded between a floor panel and a roof panel and they are transported in a folded state and are assembled locally. 
     On the other hand, in the prefabricated house disclosed in patent literature 2, an eaves gutter is provided on a gable end portion of a roof. The eaves gutter is formed such that rainwater received on the roof is received in a gutter so as to be drained through a chain. 
     CITATION LIST 
     Patent Literature 
     Patent Literature 1: Japanese Utility Model Registration No. 3058646 
     Patent Literature 2: Japanese Unexamined Utility Model Application Publication No. 61-184054 
     SUMMARY OF INVENTION 
     Technical Problem 
     However, in the prefabricated house disclosed in patent literature 1, when the prefabricated house is assembled, an eave on a gable is extended outward of the column frame and a gable wall panel. Hence, when the house is folded, since the eaves portion of the roof panel is greatly protruded, the eaves portion is disadvantageously an obstacle at the time of stacking. 
     When as in patent literature 2, the eaves gutter is fitted to the eaves portion on the gable, the eaves gutter which is fitted to the gutter that is greatly protruded is fitted in an extremely prominent position, and thus the eaves gutter is problematic in terms of appearance. In other words, in recent prefabricated houses, attention is also focused on the applications of noticeable high-quality buildings such as a shop, an office and a showroom. However, conventionally, in the conventional prefabricated houses in which the eave and the gutter on the gable are greatly protruded, it may be difficult to adapt the prefabricated houses to the noticeable high-quality buildings. 
     On the other hand, since the eaves gutter is provided in the protruded eaves portion so as to enhance waterproof performance, if in order for a satisfactory appearance to be achieved, the eaves portion and the eaves gutter are provided so as not to be protruded, the waterproof performance of the eaves gutter may be degraded. 
     Hence, the present invention is made so as to remove the problem described above, and an object of the present invention is to provide a column frame structure for a prefabricated house which enhances the efficiency of transportation, which maintains waterproof performance and which achieve a satisfactory appearance in terms of appearance. 
     Solution to Problem 
     In order to achieve the above object, a first means in the present invention is provided such that in a prefabricated house P in which a column frame  20  is foldably fitted onto a floor panel  40 , in which a roof panel  10  is stacked on the column frame  20  and which is transported, when the prefabricated house is assembled, the outside surface of a gable end portion in the roof panel  10  is prevented from being protruded beyond the outside surface of the column frame  20  on a gable that is arranged to stand, an eaves gutter  50  is installed so as to extend downward from the gable end portion in the roof panel  10  and the eaves gutter  50  is prevented from being protruded outward beyond the outside surface of the column frame  20  on the gable. 
     In a second means, a top plate  21  which makes contact with the lower surface of the gable end portion in the roof panel  10  is provided on an upper end portion of the column frame  20 , and a concave portion  21 A is formed in a part of the top plate  21  which makes contact with the eaves gutter  50  such that the outside surface of the eaves gutter  50  which is overlaid on the concave portion coincides with the outside surface of the column frame  20  on the gable. 
     In a third means, a gable beam  22  which is arranged along the gable of the roof panel  10  is mutually provided in the upper end portion of the column frame  20 , the gable beam  22  swings together with the column frame  20  and when the prefabricated house P is assembled, the gable lower surface of a roof beam  11  which supports the roof panel  10  is overlaid on an upper end portion of the gable beam  22 . 
     In a fourth means, the column frame  20  is coupled with a coupling tool  60  formed with a coupling fixed member  61  which is fixed to the gable of the roof beam  11  and a swing fixed member  62  which is swingably coupled to the coupling fixed member  61  and which is fixed to a side surface of the column frame  20  on the side of the upper end portion, an insertion hole  62 A through which a coupling pin  61 A that is provided on a side surface of the coupling fixed member  61  so as to be protruded is inserted is formed in the coupling fixed member  62  and the insertion hole  62 A is formed in the shape of a long hole such that the upper end portion of the column frame  20  which is arranged to stand when the prefabricated house P is assembled is moved in a longitudinal direction. 
     Advantageous Effects of Invention 
     As in claim  1 , when the prefabricated house P is assembled, the outside surface of the gable end portion in the roof panel  10  is prevented from being protruded beyond the outside surface of the column frame  20  on the gable that is arranged to stand, and thus when the prefabricated house P is folded, the eaves portion of the roof panel  10  is prevented from being greatly protruded, with the result that it is possible to perform very efficient stacking. 
     Moreover, the eaves gutter  50  is installed so as to extend downward from the gable end portion in the roof panel  10  and the eaves gutter  50  is prevented from being protruded outward beyond the outside surface of the column frame  20  on the gable, and thus the eaves gutter  50  is unnoticeable. Consequently, it is possible to adapt the prefabricated house to the applications of noticeable high-quality buildings such as a shop, an office and a showroom. 
     As in claim  2 , the top plate  21  which makes contact with the lower surface of the gable end portion in the roof panel  10  is provided on the upper end portion of the column frame  20 , the concave portion  21 A is formed in the part of the top plate  21  which makes contact with the eaves gutter  50  such that the outside surface of the eaves gutter  50  which is overlaid on the concave portion coincides with the outside surface of the column frame  20  on the gable and thus a sense of unity of the column frame  20  and the eaves gutter  50  is provided, with the result that it is possible to provide an excellent appearance design. 
     As in claim  3 , the gable beam  22  which is arranged along the gable of the roof panel  10  is mutually provided in the upper end portion of the column frame  20 , the gable beam  22  swings together with the column frame  20  and when the prefabricated house P is assembled, the gable lower surface of the roof beam  22  which supports the roof panel  10  is overlaid on the upper end portion of the gable beam  22 , with the result that the gable beam  22  is stored in the side of the lower surface of the roof beam  11 . Hence, even when the outside surface of the roof panel  10  is prevented from being protruded beyond the outside surface of the column frame  20  on the gable that is arranged to stand, it is possible to enhance waterproof performance. 
     As in claim  4 , the insertion hole  62 A of the coupling tool  60  is formed in the shape of a long hole such that the upper end portion of the column frame  20  which is arranged to stand when the prefabricated house P is assembled is moved in the longitudinal direction, and thus the column frame  20  is further lifted upward from the state where the column frame  20  is arranged to stand so as to make contact with the lower surface of the roof panel  10 . Consequently, while the column frame  20  which is folded is being stored in a compact manner, it is possible to achieve satisfactory storage of the column frame  20  at the time of the assembly. 
     As described above, according to the present invention, the original object is achieved in which the efficiency of transportation is enhanced and in which a satisfactory appearance in terms of appearance is achieved while waterproof performance is being maintained. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a perspective view showing an embodiment of a prefabricated house in the present invention; 
         FIG. 2  is a front view showing a state where the prefabricated house in the present invention is folded; 
         FIG. 3  is a front view showing a process of assembling the prefabricated house in the present invention; 
         FIG. 4  is a side view showing a state where the prefabricated house in the present invention is assembled; 
         FIG. 5  is a side view of a main part showing a state where the column frame of the present invention is folded; 
         FIG. 6  is a side view of the main part showing a process of assembling the column frame of the present invention; 
         FIG. 7  is a side view of the main part showing a state where the column frame of the present invention is assembled; 
         FIG. 8  is a side view of the main part showing a state where the column frame of the present invention is moved to slide; and 
         FIG. 9  is a side view of the main part showing a relationship between a roof beam and an eaves gutter when the prefabricated house in the present invention is assembled. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     An embodiment of the present invention will be described below. The present invention is a prefabricated house P which is produced in a factory and is assembled locally (see  FIG. 1 ). 
     The prefabricated house P is transported in a state where a column frame  20  is folded so as to be stacked on a floor panel  40  and where a roof panel  10  is further stacked on the column frame  20  (see  FIG. 2 ). Then, when the roof panel  10  is lifted locally (see  FIG. 3 ), the column frame  20  is gradually developed, and when the prefabricated house P is assembled, the column frame  20  is arranged to stand between the roof panel  10  and the floor panel  40  (see  FIG. 4 ). 
     In the present invention, when the prefabricated house P is assembled, the outside surface  10 A of a gable end portion in the roof panel  10  is prevented from protruding beyond the outside surface  20 A of the column frame  20  on a gable which is arranged to stand (see  FIG. 7 ). Furthermore, an eaves gutter  50  is installed so as to extend downward from the gable end portion of the roof panel  10 , and the eaves gutter  50  is formed so as not to be protruded outward beyond the outside surface  20 A of the column frame  20  on the gable  80  (see  FIG. 1 ). 
     On the upper end portion  20 B of the column frame  20 , a top plate  21  is provided. The top plate  21  is a portion which makes contact with the lower surface  10 B of the gable end portion in the roof panel  10 , and in particular, a concave portion  21 A is formed in a part of the top plate  21  which makes contact with the eaves gutter  50 . The concave portion  21 A is formed such that the eaves gutter  50  fitted to the gable end portion of the roof panel  10  is overlaid on the concave portion  21 A. Specifically, when the eaves gutter  50  is wound so as to be overlaid on the concave portion  21 A of the top plate  21 , the outside surface  50 A of the eaves gutter  50  coincides with the outside surface  20 A of the column frame  20  on the gable  80  (see  FIG. 1 ). 
     In the illustrated column frame  20 , a gable beam  22  is provided which is arranged along the gable  80  of the roof panel  10 , and the gable beam  22  swings together with the column frame  20  (see  FIG. 6 ). When the prefabricated house P is assembled, the gable lower surface  11 A of a roof beam  11  which supports the roof panel  10  is overlaid on the upper end portion of the gable beam  22  (see  FIG. 9 ). 
     The column frame  20  is swingably coupled through a coupling tool  60  to the roof beam  11  (see  FIG. 5 ). The coupling tool  60  is formed with a coupling fixed member  61  and a swing fixed member  62 . Specifically, the coupling fixed member  61  is a member which is fixed to the gable  80  of the roof beam  11 , and includes a coupling pin  61 A. On the other hand, the swing fixed member  62  is a member which is swingably coupled to the coupling fixed member  61 , and is fixed to the side surface of the column frame  20  on the side of the upper end portion  20 B (see  FIG. 6 ). 
     In the swing fixed member  62 , an insertion hole  62 A is formed through which the coupling pin  61 A of the coupling fixed member  61  is inserted, in which the insertion hole  62 A is formed in the shape of a long hole and thus the column frame  20  is moved in two steps, that is, a swinging movement and a slide movement (see  FIGS. 6 and 7 ). 
     Specifically, in order for the column frame  20  in a folded state to be arranged to stand, the column frame  20  is moved to swing about the coupling fixed member  61  of the coupling tool  60  (see  FIG. 6 ). Then, the upper end portion  20 B of the column frame  20  which is arranged to stand is moved to slide in a longitudinal direction (see  FIGS. 7 and 8 ). In the illustrated example, the insertion hole  62 A is formed in the shape of a long hole along the longitudinal direction of the column frame  20 , and is provided such that the column frame  20  is moved to slide along the insertion hole  62 A in the longitudinal direction (see  FIG. 7 ). 
     In an actual procedure, when the prefabricated house P is assembled, the roof panel  10  which is lifted is lowered, and thus the position of the column frame  20  is relatively moved to slide. When as described above, the column frame  20  is move to slide along the insertion hole  62 A in the longitudinal direction, the gable lower surface of the roof panel  10  is overlaid on the top plate  21  of the column frame  20  (see  FIG. 8 ). At the same time, the gable beam  22  is stored in the roof beam  11 , and thus it is possible to enhance waterproof performance. 
     When the column frame  20  is in the folded state, the position of the column frame  20  can be moved to slide horizontally along the insertion hole  62 A, and thus it is possible to perform compact storage (see  FIG. 5 ). 
     The configuration of the prefabricated house P in the present invention is not limited to the illustrated example, and the configurations and the shapes of the roof panel  10 , the column frame  20 , the eaves gutter  50  and the like can be arbitrarily changed. The design can freely be changed without departing from the spirit of the present invention. 
     REFERENCE SIGNS LIST 
     P prefabricated house 
       10  roof panel 
       11  roof beam 
       20  column frame 
       21  top plate 
       21 A concave portion 
       22  gable beam 
       30  wall panel 
       40  floor panel 
       50  eaves gutter 
       60  coupling tool 
       61  coupling fixed member 
       61 A coupling pin 
       62  swing fixed member 
       62 A insertion hole