JP5186519B2 - Mounting spacer and mounting structure - Google Patents

Description

  The present invention relates to a foundation spacer interposed between a foundation of a building and a foundation placed thereon, and a foundation spacer that secures an air passage between the two for ventilating the floor under the building. It is about.

  Conventionally, it is well known to provide ventilation holes in a part of the foundation of a building in order to ventilate the floor under the building. However, since this construction takes time, by inserting a foundation spacer, in which a ventilation passage for underfloor ventilation is formed in advance, between the foundation and the foundation, it is necessary for underfloor ventilation between the foundation and the foundation. It is also known to secure an air passage.

  For example, Patent Document 1 discloses a base spacer as described above in which through holes that penetrate in the width direction are provided at equal intervals as an air passage for underfloor ventilation.

  Also, in the same document, as the base spacer, grooves extending in the width direction are formed at equal intervals on the lower surface of the base spacer instead of the through holes, and the lower surface of the partition wall interposed between the grooves is formed. There is also disclosed a structure in which a ventilation path including the groove is formed on the foundation by being placed on the foundation.

Japanese Utility Model Publication No. 57-172810

  In the above-mentioned base spacer, how to ensure a large air flow while satisfying the strength required for the spacer is a big problem.

  From such a viewpoint, the foundation spacer disclosed in the above-mentioned Patent Document 1 is provided with a through-hole as the ventilation path, and the ventilation path is surrounded by walls from four sides. Since the effective cross-sectional area of the air passage is reduced by the wall thickness than the total cross-sectional area of the base spacer, it is difficult to ensure a large air flow. On the other hand, in the case of forming a groove opened downward as the above-mentioned air passage, it is possible to secure a larger air passage area because there is no wall on the lower side. Since the lower end of the partition wall portion is a free end and has a shape with low rigidity and strength as a whole, the thickness of the top wall portion connecting the partition wall portions must be set large in order to compensate for the strength. As a result, the air passage area is eventually reduced. Therefore, it is difficult to effectively promote ventilation by simply omitting the lower side wall.

  In view of such circumstances, an object of the present invention is to secure a larger air flow while satisfying the rigidity and strength required for a base spacer.

  As a means for solving the above problems, it is considered that by effectively reinforcing the spacer, the thickness of the connecting portion is kept small while maintaining sufficient rigidity and strength, and the air passage area is secured by that much. It is done.

  The invention according to claim 1 of the present application is made from such a viewpoint, and is a foundation spacer interposed between a foundation of a building and a foundation placed on the foundation, and is in a specific direction. A plurality of partition walls that are arranged side by side at a predetermined interval and whose bottom surface can be placed on the foundation, are interposed between these partition walls, and adjacent partition walls are arranged in the array direction. A plurality of connecting portions to be connected, and an upper surface of each of the partition walls and an upper surface of at least a part of the plurality of connecting portions are positioned on substantially the same plane, and the plane is placed on the base. It is configured as a base mounting surface that can be placed, and at least one of the end portions of the partition walls in the direction orthogonal to the arrangement direction protrudes outward from the edges of the connection portions. In between, the position that does not overlap with the connecting part in plan view , It is characterized in that the auxiliary connection portion interconnecting opposite the said connecting portion is formed in the adjacent partition wall portions vertically.

  According to this configuration, in addition to the adjacent partition walls being connected to each other by the connecting portion, the wall portion of the connecting portion is connected to each other by the auxiliary connecting portion on the side opposite to the connecting portion in the vertical direction. It is possible to ensure sufficient rigidity and strength while keeping the value small. In addition, since the auxiliary connecting portion is formed at a position that does not overlap with the connecting portion in plan view, the formation of the auxiliary connecting portion avoids reducing the air passage area or effectively reduces the reduction. Can be deterred. Furthermore, since the end portion of the partition wall portion protrudes from the edge of the connecting portion, the above effect can be obtained with the structure in which air easily flows into the air passage formed between the partition wall portions.

Further, as in the invention according to claim 1 of the present application, each of the connecting portions connects the upper end portions of the partition walls, and the upper surface of the connecting portions and the upper surface of the partition walls are substantially the same. If the base mounting surface is configured to be located on the same plane, and the auxiliary connecting portion connects the lower portions of the partition walls, the base mounting surface can be largely secured. The load from the base acting on the base mounting surface can be efficiently dispersed.

Here, the position where the auxiliary connecting portion connects the lower portions of the partition wall may be the lowermost end of the partition wall, but in that case, rainwater or the like that has entered the air passage may accumulate in the air passage. On the other hand, as in the invention according to claim 1 of the present application, the auxiliary connecting part connects the lower parts of the partition part at a height position above the lowest end of the partition part, If the drainage channel is secured below the auxiliary connecting part while the part is placed on the upper surface of the foundation, the drainage channel is secured while performing effective reinforcement by the auxiliary connecting part. Rainwater and the like that have entered the air passage can be drained from the drainage channel below the auxiliary connecting portion.

Further, in the invention according to the claim 1, further as in the invention according to the claims 2, the end of the partition wall portion projecting from the edge of the connecting portion is tapered toward its projecting direction If it is set as the structure which is set, the inflow of the air into the ventilation path formed between the said partition parts can be made smoother.

In the present invention, the specific structure of each partition wall can be set as appropriate. For example, as in the invention according to claim 3 of the present application, the partition wall has a cylindrical wall that opens on the bottom surface side, and the cylinder on the inside thereof. If the rib is provided to connect the wall in a direction parallel to the direction in which the partition walls are arranged, the weight can be reduced while ensuring sufficient strength as compared with the case where the partition wall has a completely solid structure. Material costs can be reduced. In particular, when a shear load in a direction parallel to the arrangement direction is applied to the partition walls, it is possible to effectively prevent the partition walls from being deformed in the shear direction by the presence of the ribs.

In addition, the foundation spacer according to the present invention can be integrally formed of synthetic resin as a whole as described in claim 4 of the present invention. Each effect can be obtained.

Further, as in the invention according to claim 5 of the present application, the upper surface of at least some of the plurality of partition walls is recessed downward from the base mounting surface and substantially orthogonal to the direction in which the partition walls are arranged. If a groove portion that extends in the direction of opening and opens on both sides of the partition wall portion is formed, a second air passage that faces the lower surface of the base is secured by the groove portion when the base is placed on the base placement surface. Therefore, the bottom surface of the foundation can be dried to prevent the foundation from being corroded.

In the invention according to claim 6 of the present application, the foundation spacer according to any one of claims 1 to 5 is interposed between the foundation of the building and the foundation placed thereon, and The relative position between the base spacer and the base is determined so that the end protruding from the edge of the connecting portion of the base spacer also protrudes from the edge of the base.

  According to this configuration, since the end portion of the partition wall portion protruding from the edge of the connecting portion also protrudes from the edge of the base, the air passage end opening formed between the end portions of the partition wall portion is provided. The air can be opened upward, and accordingly, the inflow of air into the ventilation path can be further promoted.

  As described above, according to the present invention, there is an effect that a larger amount of airflow can be secured while satisfying the rigidity and strength required for the spacer.

It is a perspective view which shows the state by which the spacer for foundations which concerns on a reference example was arrange | positioned. It is a perspective view of the base spacer which concerns on a reference example, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface. It is a principal part enlarged view of the spacer for foundations which concerns on a reference example, (a) is a top view, (b) is a front view, (c) is a bottom view. It is the II sectional view taken on the line in Fig.3 (a). It is the II-II sectional view taken on the line in Fig.3 (a). It is sectional drawing when the base spacer which concerns on a reference example is arrange | positioned between the foundation and the base. It is a perspective view of the base spacer which concerns on embodiment of this invention, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface. It is a principal part enlarged view of the spacer for foundations which concerns on the said embodiment, (a) is a top view, (b) is a front view, (c) is a bottom view. It is the III-III sectional view taken on the line in Fig.8 (a). It is the IV-IV sectional view taken on the line in Fig.8 (a). It is sectional drawing when the base spacer which concerns on the said embodiment is arrange | positioned between the foundation and the base. It is the perspective view of the spacer for foundations of a modification, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface. It is the perspective view of the spacer for foundations of a modification, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface. It is the perspective view of the spacer for foundations of a modification, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface. It is the perspective view of the spacer for foundations of a modification, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface. It is the perspective view of the spacer for foundations of a modification, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface. It is the perspective view of the spacer for foundations of a modification, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface. It is the perspective view of the spacer for foundations of a modification, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface. It is a perspective view of the base spacer which concerns on another reference example, (a) is the figure seen from the upper surface, (b) is the figure seen from the lower surface.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  First, FIG. 1 to FIG. 6 show a base spacer 10A according to a reference example.

  As shown in FIGS. 1 and 2, the base spacer 10 </ b> A is interposed between the foundation 20 of the building and the base 30 placed thereon. The base spacer 10A is formed in a long plate shape as a whole, and is placed on the foundation 20 so that its longitudinal direction is along the longitudinal direction of the foundation 20 of the building.

  At both ends in the longitudinal direction of the base spacer 10A, joint portions 18 to be joined with other base spacers 10A are provided, and the joint portions 18 continuously connect the base spacers 10A in the longitudinal direction. Can be joined.

  In the example shown in FIG. 1, a spacer piece 10 </ b> A ′ obtained by cutting the base spacer 10 </ b> A with an appropriate length is used in combination. By cutting the base spacer 10A in this way, it is possible to place the base spacer 10A without excess or deficiency with respect to the length of the foundation 20.

  As shown in FIG. 3, the base spacer 10 </ b> A is interposed between the plurality of partition walls 12 arranged in the longitudinal direction of the base spacer 10 </ b> A at predetermined intervals, and the partition walls 12. And a plurality of connecting portions 14 that connect adjacent partition wall portions 12 to each other.

  Each of the partition walls 12 has an elongated shape extending in the width direction of the planar base spacer 10A in appearance, and both ends thereof are formed in a rounded shape. Therefore, both ends in the longitudinal direction of the partition wall 12 are tapered toward the outside in the longitudinal direction. Further, the bottom surface of each partition wall portion 12 is positioned on substantially the same plane and can be placed on the foundation 20.

  In this reference example, the partition walls 12 are arranged in two rows at positions corresponding to both ends in the width direction of the base spacer 10A, and the partition walls 12 in both rows are positioned in the longitudinal direction of the base spacer 10A. Are arranged so as to match each other. And the upper end parts of the partition part 12 of each row | line | column are connected by the said connection part 14 in the longitudinal direction of 10 A of base spacers.

  In this reference example, a plurality of bridge portions 15 that connect predetermined connection portions 14 of the connection portions 14 in each row in the width direction of the base spacer 10A are provided at a plurality of locations. Of these, a predetermined bridge portion 15 is provided with a fixing portion 17 for fixing the base spacer 10A to the foundation 20 with a nail.

  Since the bridge portions 15 are arranged at a predetermined pitch, the base spacer 10A has a substantially ladder shape in plan view. The bridge portion 15 is disposed at an end portion at one end side in the longitudinal direction of the base spacer 10A, and is disposed at a position slightly inward from the end portion at the other end side. Is asymmetric in the longitudinal direction.

  The bridge portion 15 has a pair of partition walls 15a arranged in the longitudinal direction of the base spacer 10A, and the partition walls 15a are located at positions that match the position of the partition wall portion 12 in the longitudinal direction of the base spacer 10A. Has been placed.

  The partition wall 15 a is formed in substantially the same outer shape as the partition wall portion 12, and the bottom surface of the partition wall 15 a is positioned on the substantially same plane as the bottom surface of the partition wall portion 12. Further, a gap 11 as shown in FIGS. 3C and 4 is secured between each partition wall 15a and the partition wall portion 12 adjacent to the partition wall 15a in the longitudinal direction of the partition wall 15a. .

  And the said fixing | fixed part 17 is continuously provided by the side surface on the opposite side to the mutually opposing side surface of this partition 15a.

  The fixing portion 17 has an insertion portion 17b through which the main body portion of the nail can be inserted through the fixing portion 17 in the vertical direction, and a concave portion 17a into which the head portion of the nail can be fitted (FIG. 5). reference).

  Each connecting portion 14 is a plate-like body extending in the longitudinal direction of the base spacer 10 </ b> A in a posture substantially parallel to the bottom surface of the partition wall portion 12. Then, these connecting portions 14 connect the upper ends of the partition wall portions 12 so that the upper surface of the connecting portion 14 and the upper surface of the partition wall portion 12 are located on substantially the same plane, so that this plane becomes the base. 30 is configured as a base mounting surface 10a on which the mounting can be performed.

  In the present reference example, the upper surface of the bridge portion 15 is also located substantially on the same plane as the upper surface of the connecting portion 14, and the upper surface of the bridge portion 15 also constitutes the base mounting surface 10a.

  A window 19 is formed by the inner edge in the width direction of the base spacer 10 </ b> A in each connecting portion 14 and the edge of the bridge portion 15 described above, and an anchor bolt 25 protruding from the foundation can be inserted into the window 19. (See FIG. 1).

  Here, since the gap 11 is secured in the width direction of the base spacer 10A between the partition wall 15a and the partition wall portion 12 as described above, it is possible to ventilate between the windows 19 through the gap 11. ing.

  The thickness of each connecting portion 14 is that the connecting portion 14 connects the upper end portions of the partition wall portion 12 and the lower end of the partition wall portion 12 is a free end. The base spacer 10A is set sufficiently large so as not to be greatly bent.

  Further, as shown in FIG. 4, the width of each connecting portion 14 is set to a dimension shorter than the length of the partition wall portion 12, and the edge on the inner side in the width direction of the base spacer 10 </ b> A in the connecting portion 14 and the partition wall The end point on the inner side in the width direction of the base spacer 10 </ b> A in the portion 12 is set so as to substantially match.

  For this reason, the width direction outer end of the base spacer 10A in the partition wall 12 protrudes from the outer edge in the width direction of the base spacer 10A in each of the connecting portions 14, and in the region where the end protrudes. The space formed between the partition walls 12 is opened up and down before the foundation spacer 10A is constructed.

  Each of the partition walls 12 has a cylindrical wall 12 a that opens to the bottom surface side, and a rib 12 b that connects the cylindrical wall 12 a in a direction parallel to the direction in which the partition walls 12 are arranged is provided inside thereof.

  Among these partition walls 12, partition walls 12 ′ located at both ends in the longitudinal direction of the base spacer 10 </ b> A have a slightly different shape from the other partition walls 12. That is, one of the two rows of partition walls 12 ′ located on one end side of the base spacer 10 A protrudes in the longitudinal direction of the base spacer 10 A and protrudes in the vertical direction. A groove 18a is formed, and a groove 18b into which the protrusion 18a can be fitted is formed in the partition wall 12 'of the other row. In addition, a groove portion 18b similar to the groove portion 18b is formed in the partition wall portion 12 'in the row where the protrusion 18a is formed in the partition wall portion 12' located on the other end side of the base spacer 10A. On the partition wall portion 12 'in the other row, a ridge portion 18a similar to the ridge portion 18a is formed. In other words, the partition wall portion 12 'on one end side and the partition wall portion 12' on the other end side of the base spacer 10A are point-symmetric with respect to the center point on the plane of the base spacer 10A. And the joint part 18 mentioned above is comprised by this protrusion part 18a and the groove part 18b.

  Here, in order to join the two base spacers 10A in the longitudinal direction, one protrusion 18a is fitted into the other groove 18b, and the other protrusion 18a is fitted into one groove 18b. (See FIG. 1).

  Since the joint 18 on one end side in the longitudinal direction of the base spacer 10A and the joint 18 on the other end are point-symmetric due to the above-described configuration, the two base spacers 10A are joined in the same direction. In addition, it is possible to join the two base spacers 10A to each other even if one of them is inverted by 180 ° on a plane.

  In order to manufacture the base spacer 10A having such a configuration, it is possible to integrally mold with synthetic resin using a mold sandwiched from above and below.

  Next, the usage procedure and operation of the base spacer 10A will be described.

  First, the bottom surface of the partition wall 12 of the base spacer 10 </ b> A is placed on the foundation 20. When the length of the base spacer 10 </ b> A is shorter than the length of the foundation 20, a plurality of base spacers 10 </ b> A are joined to each other in the longitudinal direction by the joint portion 18.

  If the base spacer 10A is placed on the foundation 20 in the same direction, the bridge portion 15 of the base spacer 10A and the anchor bolt 25 may interfere with each other. In this case, as described above, even if one of the two foundation spacers 10A is inverted by 180 °, both the foundation spacers 10A can be joined to each other, and the bridge portion 15 is arranged in a longitudinal direction. Since the direction is asymmetrical, the anchor bolt 25 can be inserted into the window 19 by reversing the base spacer 10A as described above and avoiding the interference.

  When the length of the base spacer 10A is longer than the length of the foundation 20, or as a result of placing a plurality of base spacers 10 on the base 20 while joining, the terminal base spacer 10A is in the longitudinal direction of the base 20 When projecting from the end, the connecting portion 14 of the base spacer 10A is cut at an appropriate position to obtain a spacer piece 10A ′ having a desired length, and this spacer piece 10A ′ is mounted on the foundation 20. Put.

  Then, after placing the base spacer 10A, the fixing portion 17 of the base spacer 10A is fixed to the foundation 20 with a nail. Thereafter, the base 30 is placed on the base placement surface 10a of the base spacer 10A.

  When the base spacer 10A is interposed between the foundation 20 and the base 30 in this way, as shown in FIG. 6, in the portion where the connecting portion 14 is present, the left and right are sandwiched by the partition wall portion 12 and the upper and lower portions are connected to the connecting portion 14. An air passage 13 for underfloor ventilation is constituted by a space sandwiched between the foundation 20.

  On the other hand, in the region where the end of the partition wall portion 12 protrudes from the edge of the connection portion 14, the connection portion 14 does not exist, and the space formed between the partition wall portions 12 of this spacer portion opens up and down. In this state, the air passage 13 for underfloor ventilation is constituted by a space between the left and right sides of the partition wall portion 12 and the upper and lower sides between the base and the foundation. Become.

  Therefore, in this structure, the opening area of the end portion of the air passage 13 can be made larger than the structure in which the connecting portion 14 exists over the entire length of the partition wall portion 12, so It can be set as the structure where air flows in easily. If air easily flows into the air passage 13 as described above, it is possible to increase the air flow accordingly. In addition, it is possible to increase the air flow rate by merely projecting the end of each partition wall 12 from the edge of the connecting portion 14 and hardly affect the rigidity and strength of the entire spacer.

  Therefore, it is possible to secure a larger air flow while satisfying the rigidity and strength required for the spacer.

  In addition, as shown in FIG. 1, in the place where two base spacers 10A are orthogonal to each other in a T shape, the end face of the other base spacer 10A is in contact with the side surface of one base spacer 10A. Thus, a gap 11 is secured in the width direction of the base spacer 10A between the partition wall 15a and the partition wall portion 12 of the bridge portion 15, and ventilation can be performed in the longitudinal direction of the spacer 10A through the gap 11. Therefore, it is possible to ventilate between the base spacers 10A even in the orthogonal portion.

  Moreover, since the edge part of the said partition part 12 which protrudes from the edge of the said connection part 14 is tapering toward the protrusion direction, it goes into the ventilation path 13 formed between the said partition parts 12 mutually. Inflow of air can be made smoother.

  In particular, in the illustrated reference example, since both end portions of each partition wall portion 12 are tapered, the inside of the air passage 13 formed between these partition wall portions 12 is also inside from the outside of the base spacer 10A (that is, Air can also flow in smoothly from the window 19 side. For this reason, the air outside or inside the base 20 (that is, under the floor) smoothly flows into the air passage 13 and enters the window 19, and smoothly enters the air passage 13 on the opposite side from the window 19. It is possible to flow in and flow out to the opposite side of the foundation 20, and as a result, the air flow rate inside and outside the foundation increases.

  Further, in the illustrated reference example, the partition wall portion 12 has a cylindrical wall 12a that opens to the bottom surface side, and a rib 12b that connects the cylindrical wall 12a in a direction parallel to the alignment direction of the partition wall portions 12 inside thereof. Therefore, it is possible to ensure sufficient strength while reducing the weight and reducing the material cost as compared with the case where the partition wall portion 12 has a completely solid structure. .

  In particular, when a shear load in a direction parallel to the arrangement direction of the partition walls 12 is applied to the base spacer 10A, the presence of the rib 12b effectively suppresses the base spacer 10A from being deformed in the shear direction. Therefore, the strength of the base spacer 10A against the shear load is remarkably improved.

  Further, as shown in FIG. 6, the entire width of the base spacer 10A is set wider than the width of the base 30, and the end portion of the partition wall 12 protruding from the edge of the connecting portion 14 of the base spacer 10A is the base. If the relative position of the base spacer 10 </ b> A and the base 30 is determined so as to protrude from the edge of the base 30, the end portion of the air passage 13 formed between the end portions of the partition wall portion 12. The opening can be opened upward, and the inflow of air into the ventilation path 13 can be further promoted accordingly.

  Next, FIGS. 7 to 11 show a base spacer 10B according to an embodiment of the present invention. Compared to the base spacer 10A according to the above reference example, the base spacer 10B according to this embodiment is provided with the auxiliary connecting portions 16 that interconnect the lower portions of the partition wall portions 12, and each connecting portion 140. The only difference is that the wall thickness of the sheet is kept small, and the other components are the same. Therefore, the same components as those in the reference example described above are denoted by the same reference numerals, and the description thereof is omitted.

  Each of the connecting portions 140 is different from the connecting portion 14 according to the above-described reference example only in thickness, and the configuration and the like connecting the width and the partition wall portion 12 are exactly the same. The end of the partition wall 12 protrudes outward in the width direction of the base spacer 10B.

  The auxiliary connecting portion 16 is formed only in a region where the end portion of the partition wall portion 12 protrudes from the edge of the connecting portion 140. The auxiliary connecting portion 16 is a rod-shaped body having a substantially rectangular cross section extending in the longitudinal direction of the base spacer 10B (see FIG. 9). The auxiliary connecting portion 16 is formed with a tapered portion 16a by chamfering a corner portion sandwiched between the upper surface of the auxiliary connecting portion 16 and the side surface of the auxiliary connecting portion 16 on the outer side in the width direction of the base spacer 10B. .

  The position where the auxiliary connecting portion 16 is provided is not the lowermost end of the partition wall portion 12 but a height position slightly above the lowermost end. Further, the auxiliary connecting portion 16 and the connecting portion 140 are set so as not to overlap each other in plan view. Specifically, the side surface on the inner side in the width direction of the base spacer 10B in the auxiliary connecting portion 16 and the connecting portion. A gap t is provided between the base spacer 10 </ b> B and the outer edge in the width direction at 140.

  By providing this gap t, the connecting portion 14 and the auxiliary connecting portion 16 do not overlap each other in plan view, and there are no overlapping portions in the other portions. It is possible to manufacture the base spacer 10B by integrally molding with synthetic resin.

  If such an auxiliary connecting portion 16 is provided, in addition to the upper ends of the partition walls 12 being connected by the connecting portion 140, the lower portions of the partition walls 140 are also connected by the auxiliary connecting portion 16. Therefore, it is possible to ensure sufficient rigidity and strength while keeping the thickness of each connecting portion 140 small. And by setting the thickness of each connection part 140 small in this way, the area of the ventilation path 13 can be ensured large by that much.

  In addition, since the auxiliary connecting portion 16 is formed only in a region where the end of the partition wall portion 12 protrudes from an edge of the connecting portion 140, that is, in a region where the connecting portion 140 does not exist, the auxiliary connecting portion 16 It can be avoided that the air passage area is reduced by the formation of 16, or the reduction can be effectively suppressed.

  Specifically, as shown in FIG. 11, since the auxiliary connecting portion 16 is formed only in the region where the connecting portion 140 does not exist, the projected area of the auxiliary connecting portion 16 on the vertical surface is the area of the air passage 13 as it is. However, the reduction of the area of the air passage 13 by the amount obtained by subtracting the projected area of the connecting portion 140 from the projected area of the auxiliary connecting portion 16 is avoided. Here, if the projection area of the auxiliary connecting part 16 is set to be smaller than the projected area of the connecting part 140, the area of the ventilation path 13 is such that the connecting part 140 extends over the entire length of the partition wall part 12. It does not decrease as compared with the structure, and the reduction of the area of the air passage 13 can be effectively suppressed.

  Therefore, even if the auxiliary connecting portion 16 is formed only in the region where the connecting portion 140 does not exist, a larger air flow rate can be ensured while satisfying the rigidity and strength required for the spacer.

  In addition, since the taper portion 16a is formed in the auxiliary connecting portion 16 on the outer side in the width direction of the base spacer 10B, air flows smoothly into the air passage 13 from the upper side of the auxiliary connecting portion 16. become.

  Furthermore, in this embodiment, since the auxiliary | assistant connection part 16 is provided in the height position above the lowest end of the partition part 12, the auxiliary | assistant connection part 16 among the space which comprises the said ventilation path 13 for underfloor ventilation. The lower space 13 'functions as a drainage channel. That is, when rainwater or the like enters the air passage 13, the rainwater or the like is drained from the space 13 ′ below the auxiliary connecting portion 16.

  As described above, in order to secure the space 13 ′ functioning as a drainage channel below the auxiliary connecting portion 16, the distance between the lower surface of the auxiliary connecting portion 16 and the bottom surface of the partition wall portion 12 is set to about 2 mm. It is enough. If comprised in this way, a drainage channel can be ensured, performing the effective reinforcement by the auxiliary | assistant connection part 16. FIG.

  The base spacer 10B of the present invention is not limited to the form shown in the above-described embodiment, and various modifications can be made.

  For example, in the said embodiment, the partition part 12 was arranged in 2 rows, and the connection part 140 which connects the upper end parts of the partition part 12 was connected also to the width direction of the spacer 10B for foundations by the bridge part 15. Although shown, it is also possible to omit the bridge portion 15 and use each row as a base spacer. In this case, it is not necessary that both end portions of the partition wall portion 12 in the longitudinal direction protrude from the edge of the connecting portion 140, and at least one of them may protrude.

  Moreover, in the said embodiment, it is set so that the edge inside the width direction of the spacer 10B for foundations in each connection part 140 and the end point inside the width direction of the spacer 10B for foundations in the partition part 12 may correspond substantially. Although only the widthwise outer end of the base spacer 10B in the portion 12 is shown protruding outward from the edge of the connecting portion 140, the opposite end may protrude inward.

  Further, the edge on the inner side in the width direction of the base spacer 10B in each connecting portion 140 is positioned inside the end point on the inner side in the width direction of the base spacer 10B in the partition wall portion 12, so It is also possible to connect a plurality of positioned connecting portions 140 to each other.

  Note that the entire upper surface of the partition wall portion 12 does not have to be positioned substantially on the same plane as the upper surface of the connection portion 140. For example, the end of the partition wall portion 12 protruding from the edge of the connection portion 14 on the upper surface of the partition wall portion 12. The upper surface of the portion may be formed so as to be one step lower than the upper surface of the other portion, or the upper surface of the end portion may be formed in a tapered shape.

  On the other hand, the joining portion 18 is not an essential component and can be omitted.

  Further, the base spacer 10B does not need to be able to be reversed and placed by 180 °, and only one side surface of the base spacer 10B is configured as a surface facing the outside of the building material portion, and the base 20 is arranged in the same direction. It may be placed on top.

  Note that the partition wall portion 12 does not necessarily have the cylindrical wall 12a, and the specific structure of the partition wall portion 12 can be set as appropriate, such as a solid structure.

  Moreover, the position of the fixing | fixed part 17 can be changed suitably.

  Furthermore, in the base spacer 10B according to the above embodiment, the same effect can be obtained even if the base spacer 10B is deformed as shown in the base spacers 10C to 10H shown in FIGS. However, if it is the shape of the said spacer 10B for bases, since not only the said effect can be acquired by simple shape but the base mounting surface 10a can be ensured large, it acts on the said base mounting surface 10a. The load from the base 30 can be efficiently dispersed.

  In the base spacer 10C of the modification shown in FIG. 12, the width of each connecting portion 140 is set to be smaller, and the both ends of each partition wall portion 12 from the edges on both sides in the width direction of the base spacer 10C in each connecting portion 140. The part protrudes to both the width direction outer side and inner side of the base spacer 10C. And the auxiliary | assistant connection part 16 is alternately formed in the area | region where the edge part of this partition part 12 protrudes outside, and the area | region which protrudes inside.

  Also in the base spacer 10C, as in the base spacer 10B, the auxiliary connecting portion 16 is disposed at a position that does not overlap the connecting portion 140 in plan view. In addition, also in the base spacers 10D to 10H described below, the auxiliary connecting portion 16 is disposed at a position that does not overlap the connecting portion 140 in plan view.

  In the base spacer 10D of the modification shown in FIG. 13, the partition walls 12 are arranged in the longitudinal direction of the base spacer 10D in a posture slightly inclined with respect to the width direction of the base spacer 10D. Note that the partition walls 12 in one row (left side in FIG. 13B) and the partition walls 12 in the other row (right side in FIG. 13B) are on the same straight line extending in the longitudinal direction. They are not lined up and are located at slightly shifted positions.

  Also in the base spacer 10D, both ends of each partition wall portion 12 protrude from the edge of each connecting portion 140 on both sides, similarly to the above-described base spacer 10C. The part is formed in both the region protruding outward and the region protruding inward. In addition, the auxiliary | assistant connection part 16 is provided in the position which connects the lower end parts of the partition part 12, and the lower surface of the auxiliary | assistant connection part 16 and the bottom face of the partition part 12 are located on the substantially the same plane.

  In this way, the rigidity of the base spacer 10D can be further improved, and the cross-sectional area of the auxiliary connecting portion 16 can be set small, so that the area of the air passage 13 can be secured larger. .

  Further, in the foundation spacer 10D, substantially cone-shaped protrusions 10b that taper upward toward the foundation placement surface 10a are staggered. The protrusion 10 b is formed on the upper surface of each partition wall portion 12. For this reason, when the base 30 is mounted on the base mounting surface 10a, the protrusion 10b bites into the lower surface of the base 30, and the relative positional deviation between the base 30 and the base spacer 10D is restricted.

  In the base spacer 10E of the modified example shown in FIG. 14, groove portions 12c are formed on the upper surface and the lower surface of each partition wall portion 12. The groove portion 12 c formed on the upper surface of the partition wall portion 12 has a shape that is recessed downward from the base mounting surface 10 a and extends in the longitudinal direction of the partition wall portion 12 and opens on both sides of the partition wall portion 12. The groove 12c formed on the lower surface of the partition wall 12 has a similar shape.

  If such a groove portion 12c is formed, the second portion facing the lower surface of the base 30 by the groove portion 12c formed on the upper surface of the partition wall portion 12 when the base 30 is placed on the base mounting surface 10a. Since the air passage is secured, the lower surface of the base 30 can be dried to prevent the base 30 from being corroded. Similarly, the upper surface of the foundation 20 can be dried by the groove portion 12 c formed on the lower surface of the partition wall portion 12.

  The grooves 12c do not have to be formed on the upper and lower surfaces of all the partition walls 12, and may be formed only on the upper surfaces of some of the partition walls 12.

  The base spacer 10F according to the modification shown in FIG. 15 has a line-symmetric shape around the center line extending in the longitudinal direction of the base spacer 10F through the center in the width direction of the base spacer 10F. Even if they are reversed, they have the same appearance.

  That is, in one row (on the left side in FIG. 15A), the lower ends of the partition walls 12 are connected to each other by the connection portion 140, and the lower surface of the connection portion 140 and the bottom surface of each partition wall portion 12 are substantially on the same plane. The base mounting surface 10a is configured only by the upper surface of each partition wall portion 12. Similarly to the base spacer 10B, the auxiliary connecting portion 16 is formed only in a region where the end of the partition wall portion 12 protrudes outward, and the upper portions of the partition wall portion 12 are interconnected by the auxiliary connecting portion 16. Yes.

  On the other hand, in the other row (the right side in FIG. 15A), the upper end portions of the partition wall portions 12 are connected to each other by the connecting portions 140, similarly to the base spacers 10 </ b> B to 10 </ b> E described above. A base mounting surface 10 a is constituted by the upper surface and the upper surface of each partition wall 12. Further, the lower portions of the partition wall portion 12 are interconnected by the auxiliary connecting portion 16 in a region where the end portion of the partition wall portion 12 protrudes outward.

  The base spacer 10F formed in this way can be used with its upper and lower surfaces reversed.

  In the base spacer 10G of the modification shown in FIG. 16, the connecting portions 140 in each row are alternately arranged up and down along the longitudinal direction of the base spacer 10G. And the auxiliary | assistant connection part 16 has connected the lower part of the partition part 12 in the area | region where the edge part of the partition part 12 protrudes outside in the part in which the connection part 140 is arrange | positioned above, and the connection part 140 is lower. In the part arrange | positioned at the side, the upper part of the partition part 12 is connected in the area | region where the edge part of the partition part 12 protrudes inside.

  In the base spacer 10H of the modified example shown in FIG. 17, the connecting portion 140 is divided in the width direction of the base spacer 10H, and a gap S is provided therebetween, and the auxiliary connecting portion is provided below the gap S. 16 is disposed.

  The width direction dimension of the base spacer 10H in the auxiliary connecting portion 16 is set to be smaller than the width direction dimension of the base spacer 10H in the gap S, whereby the connecting portion 140 and the auxiliary connecting portion 16 are flat. They do not overlap with each other.

  The auxiliary connecting portion 16 connects the lower end portions of the partition wall portion 12, and the bottom surface of the auxiliary connecting portion 16 and the bottom surface of the partition wall portion 12 are located on substantially the same plane, and the partition wall portion They are arranged on the same straight line extending in a direction substantially parallel to the 12 arrangement directions.

  In this way, it is possible to improve the aesthetics by making the auxiliary connecting portion 16 inconspicuous while ensuring a large area for the air passage.

  Here, the auxiliary connecting portion 16 does not need to be formed at a position where the lower end portions of the partition wall portion 12 are connected to each other. As shown in FIG. You may form in the position to connect. If it does in this way, it is also possible to ensure a drainage channel under auxiliary connecting part 16 like base spacer 10B mentioned above.

  In each of the above-described foundation spacers 10B to 10H, the cross-sectional shape of the auxiliary connecting portion 16 may be, for example, a circular shape.

  Further, if the auxiliary connecting portion 160 is detachably attached to the partition wall portion 12 as in the base spacer 10I of another reference example shown in FIG. 19, the base spacer 10A of the reference example and the embodiment described above are used. The advantages of both the base spacer 10B can be taken.

  The auxiliary connecting portion 160 has a rectangular plate shape extending along the longitudinal direction of the base spacer 10I, and an engaging portion 160a is provided on the upper surface thereof at a position corresponding to each partition wall portion 12.

  On the other hand, a concave portion 12d into which the auxiliary connecting portion 160 can be fitted is formed at the bottom of each partition wall portion 12 in the center in the longitudinal direction of the partition wall portion 12. An engaging hole 12e that can be engaged with the inner peripheral surface of the engaging portion 160a of the connecting portion 160 is formed.

  With such a base spacer 10I, sufficient rigidity is ensured by fitting the auxiliary connection portion 160 to the partition wall portion 12 by fitting the engagement portion 160a of the auxiliary connection portion 160 into the engagement hole 12e of the partition wall portion 12. Therefore, the thickness of the connecting portion 140 can be kept small, and if the auxiliary connecting portion 160 is removed, a large effective cross-sectional area of the air passage can be secured over the entire length of the air passage. Then, the auxiliary connecting portion 160 may be attached to the partition wall portion 12 when particularly rigid is required during transportation or the like, and removed from the partition wall portion 12 immediately before being placed on the base 20.

  The engaging portions 160a of the auxiliary connecting portion 160 do not have to be provided at positions corresponding to all the partition walls 12, and are provided at a pitch that is an integral multiple of the pitch at which the partition walls 12 are provided. Alternatively, the engagement holes 12e of the partition walls 12 need not be formed in all the partition walls 12, and may be formed only in the partition walls 12 arranged at a pitch corresponding to the pitch of the engagement portions 160a. Good.

10A to 10I Foundation spacer 10a Foundation placement surface 12 Bulkhead portion 12a Cylindrical wall 12b Rib 12c Groove portion 13 Communication path 14,140 Connection portion 15 Bridge portion 16 Auxiliary connection portion 17 Fixed portion 18 Joint portion 19 Window 20 Foundation 25 Anchor bolt 30 foundation

Claims (6)

A spacer for a base interposed between a foundation of a building and a base placed on the foundation, arranged in a specific direction at a predetermined interval, and a bottom surface thereof placed on the foundation A plurality of possible partition walls, and a plurality of connection portions that are interposed between the partition walls and connect adjacent partition walls in the arrangement direction, and the upper surface of each partition wall and the plurality of connections The upper surface of at least some of the connecting portions is located on substantially the same plane, and the plane is configured as a base mounting surface on which the base can be mounted, and from the edge of each of the connecting portions At least one of the end portions of the partition walls in the direction orthogonal to the arrangement direction protrudes outward, and the partition walls adjacent to each other between the partition walls at positions where they do not overlap with the connecting portions in plan view. The parts are interconnected on the opposite side of the connecting part in the vertical direction. Auxiliary connecting portion that is formed,
Each of the connecting portions connects the upper end portions of the partition walls, and the upper surface of the connecting portions and the upper surface of the partition walls are positioned on substantially the same plane to form the base mounting surface. The auxiliary connecting portion connects the lower portions of the partition wall portions,
The auxiliary connecting portion connects lower portions of the partition wall portions at a height position higher than the lowest end of the partition wall portion, and the partition wall portion is placed on the upper surface of the foundation. A foundation spacer characterized in that a drainage channel is secured below the auxiliary connecting portion . 2. The foundation spacer according to claim 1, wherein an end of the partition wall protruding from an edge of the connecting portion is tapered in the protruding direction. 3. The base spacer according to claim 1, wherein the partition wall portion has a cylindrical wall that opens to the bottom surface side, and the cylindrical wall is connected to the inside of the partition wall in a direction parallel to the arrangement direction of the partition wall portions. A spacer for a foundation, wherein ribs are provided. The foundation spacer according to any one of claims 1 to 3 , wherein the whole is integrally formed of synthetic resin. The base spacer according to any one of claims 1 to 4 , wherein an upper surface of at least some of the plurality of partition walls is recessed downward from the base mounting surface, and the partition walls are A base spacer, characterized in that grooves extending in a direction substantially perpendicular to the alignment direction and having openings on both sides of the partition wall are formed. The foundation spacer according to any one of claims 1 to 5 is interposed between the foundation of the building and the foundation placed thereon, and protrudes from the edge of the connecting portion of the foundation spacer. The base structure is characterized in that the relative position between the base spacer and the base is determined so that the end of the base protrudes from the edge of the base.

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