JP6928808B2 - Foundation packing - Google Patents

Description

The present invention relates to a foundation packing that is continuously arranged between a foundation and a foundation, and more specifically, to a foundation packing having an airtightness that is used around an entrance or a bathroom.

A foundation packing method using foundation packing is known for forming an underfloor ventilation path. In the foundation packing used in this foundation packing method, for example, in order to continuously arrange long foundation packings in parallel between the foundation and the foundation, fitting portions are provided on both end surfaces of the foundation packing in the long side direction. And a fitted portion are formed (see Patent Document 1).

On the other hand, some parts of the building may be required to have no ventilation under the floor. For example, around the entrance or bathroom, if there is a gap (ventilation port) between the foundation and the base, warm air in the room will flow out from here or cold outside air will invade, and the heat retention of the room will be maintained. Is impaired, so it is required that there is no ventilation under the floor. The foundation packing adopted in such a place is, for example, a foundation packing arranged between the foundation and the foundation in order to improve the airtightness between the foundation and the foundation, and is long on the upper and lower surfaces. Some elastic materials are attached over the entire length in the lateral direction (see Patent Document 2).

Japanese Unexamined Patent Publication No. 2002-129662 Utility Model Registration No. 3071575

Although there is a technique for connecting long foundation packings and a technique for improving the airtightness between the foundation and the foundation as described above, there is no foundation packing having both of these functions.

Therefore, the present inventor has formed a connecting convex portion and a connecting concave portion that can be fitted to the connecting convex portion on both end faces in the long side direction of the packing main body, and has a total length in the long side direction on at least the upper surface of the packing main body. As a result of examining the foundation packing provided with the elastic material, the following problems were found. When a plurality of long foundation packings are connected and arranged in the long side direction between the foundation and the foundation, the foundation packings are arranged by providing an elastic material on at least the upper surface of each foundation packing. The airtightness between the foundation and the foundation is improved, but if the two foundation packings adjacent to each other in the long side direction are separated even slightly in the long side direction, the elastic materials provided in both foundation packings are separated in the short side direction. There is a problem that a gap for communication is created. Further, when the connecting convex portion is not formed over the entire width in the thickness direction of the foundation packing, if the two foundation packings adjacent to each other in the long side direction are separated from each other even slightly in the long side direction, the two foundation packings are separated from each other. There is a problem that gaps communicating with each other in the short side direction are formed above and below the connecting convex portion.

Therefore, an object of the present invention is to provide a foundation packing capable of stably arranging and fixing the foundation packing even if the upper surface of the foundation is uneven.

Basic packing of the present invention is an airtight elongated foundation packing continuous to be interposed between the base and the foundation as airtight between the foundation and the foundation, the longitudinal direction A pair of extending bases and a connecting portion for connecting the pair of bases in the short side direction are provided, and at least one of the pair of bases has one end in the long side direction. It has a connecting portion formed on the portion and a connected portion formed on the other end portion, and the connecting portion is located on one end surface of the one substrate below the upper surface of the substrate. The connected portion has a plurality of convex portions protruding from the surface, and the connected portion has a plurality of concave portions recessed from a position lower than the upper surface of the substrate on the other end surface of the one substrate, and the concave portions are downward. It is open toward you.

According to this, when connecting another foundation packing of the same type to one foundation packing in the long side direction, the upper surface of the convex portion of the connecting portion of one foundation packing is the concave portion of the connected portion of another foundation packing. It is possible to connect by pressing down from above with the upper wall part. Therefore, even if the upper surface of the foundation is uneven, the foundation packing can be stably arranged and fixed.

According to the foundation packing of the present invention, the foundation packing can be stably arranged and fixed even if the upper surface of the foundation is uneven.

It is a partial perspective view of the building structure which used the foundation packing which concerns on one Embodiment of this invention. It is a perspective view of the foundation packing shown in FIG. It is a perspective view of the foundation packing in a state where the elastic material is removed from the foundation packing shown in FIG. It is a top view of the foundation packing shown in FIG. It is a front view of the foundation packing shown in FIG. The situation when the two foundation packings connected in the long side direction are slightly separated in the long side direction is shown, (a) is a plan view of the main part, and (b) is a cross-sectional view of the main part. Two foundation packings connected in the short side direction are shown, and (a) shows the case where the three first convex portions constituting the connecting convex portion are fitted between the two adjacent second convex portions. It is a plan view of a main part, and (b) is a plan view of a main part when the second convex part is fitted between two adjacent first convex parts.

Hereinafter, the building structure 100 in which the foundation packing 10 according to the embodiment of the present invention is used will be described below with reference to FIG.

As shown in FIG. 1, the building structure 100 in the present embodiment extends over a long foundation 1 (for example, a cloth foundation) and a long foundation along the extending direction of the foundation 1, and the building structure 100 extends on the foundation 1. A plurality of foundation packings 10 connected in the long side direction A and a long wooden base arranged in the long side direction A so as to sandwich the plurality of foundation packings 10 with the foundation 1. 2 and are included. The building structure 100 shows, for example, a part of a part used for the entrance, but is adopted in a place where it is necessary to shield between the foundation 1 and the foundation 2. The foundation 1 is composed of a footing 1a and a rising portion 1b erected above the footing 1a. The base 2 and the plurality of foundation packings 10 are fixed on the rising portion 1b by anchor bolts, square washers and nuts (both not shown) planted in the foundation 1.

The foundation packing 10 is made of synthetic resin, but is not particularly limited, and may be made of, for example, metal. As shown in FIGS. 2 to 4, the foundation packing 10 includes a packing main body 11, two connecting convex portions 12, two connecting first concave portions 13, four elastic members 14, and a plurality of connecting convex portions. It has a second recess 15. In addition, in FIG. 2 and FIG. 3, the foundation packing 10 in a state where the four elastic members 14 are removed is shown in order to make the structure of the packing main body 11 and the like easy to understand. The packing body 11 has five connections for connecting a pair of bases 21 and 22 extending along the long side direction A and a pair of bases 21 and 22 in the short side direction B (direction orthogonal to the long side direction A). It has a part 23.

Each of the substrates 21 and 22 has a quadrangular prism shape. The pair of substrates 21 and 22 are arranged in parallel with each other, and the inner side surfaces 21c and 22c are arranged so as to face each other along the short side direction B while being separated from each other by the five connecting portions 23. As shown in FIGS. 3 and 4, step surfaces 21f and 22f and inclined surfaces 21g and 22g are provided on the upper surfaces 21d and 22d of the pair of substrates 21 and 22 and the inner end portions in the short side direction B, respectively. Two are formed. The two stepped surfaces 21f are formed at both ends of the substrate 21 in the long side direction A. The two stepped surfaces 22f are formed at both ends of the substrate 22 in the long side direction A. In other words, the four stepped surfaces 21f and 22f are arranged at both ends of the packing main body 11 in the long side direction A. The stepped surfaces 21f and 22f are arranged below the upper surfaces 21d and 22d. Each inclined surface 21g is connected to the stepped surface 21f, and is inclined downward as it approaches the stepped surface 21f from the upper surface 21d of the substrate 21. Each inclined surface 22g is also connected to the stepped surface 22f, and is inclined downward as it approaches the stepped surface 22f from the upper surface 22d of the substrate 22.

As shown in FIGS. 3 to 5, grooves 21h and 22h extending in the long side direction A are formed on the upper surfaces 21d and 22d of the inner ends of the pair of bases 21 and 22 in the short side direction B. On the lower surfaces 21e and 22e, grooves 21i and 22i extending in the long side direction A are formed. Both ends of the bottom surface of the groove 21h in the long side direction A are connected to the inclined surface 21g. Both ends of the bottom surface of the groove 22h in the long side direction A are connected to the inclined surface 22g. That is, the grooves 21h and 22h are arranged between the inclined surfaces 21g and between the inclined surfaces 22g. The grooves 21i and 22i are formed over the entire length of the lower surfaces 21e and 22e in the long side direction A. An elastic material 14 is attached to each of the bottom portions of the grooves 21h, 21i, 22h, and 22i with an adhesive. Further, the elastic material 14 is also attached to the stepped surfaces 21f and 22f and the inclined surfaces 21g and 22g by an adhesive.

As shown in FIG. 2, the five connecting portions 23 are arranged apart from each other along the long side direction A, and a hole 24 for inserting an anchor bolt is formed between the two adjacent connecting portions 23. Has been done. Of the five connecting portions 23, two connecting portions 23 arranged at both ends in the long side direction A are formed with nail holes 25 for driving nails for temporarily fixing the foundation packing 10 to the foundation 1. There is.

As shown in FIG. 4, the connecting convex portions 12 are formed on both end faces 11a and 11b of the packing main body 11 in the long side direction A, respectively. More specifically, the connecting convex portion 12 is formed on the left end surface 21a of the base 21 in FIG. 4 and the right end surface 22b of the base 22 in FIG. These two connecting convex portions 12 are arranged point-symmetrically with respect to the center points of the packing main body 11 in the long side direction A and the short side direction B. Further, these two connecting convex portions 12 are composed of three first convex portions 31 protruding from the left end surface 21a and three first convex portions 31 protruding from the right end surface 22b. The three first convex portions 31 constituting the connecting convex portion 12 are separated from each other and arranged at equal intervals in the short side direction B, and the second convex portion 31 described later is provided between the two adjacent first convex portions 31. The portion 15a is arranged so that it can be fitted. As shown in FIGS. 3 and 5, each first convex portion 31 extends from a position slightly below the upper surface 11c of the packing main body 11 to the lower end of the packing main body 11. Further, the upper surface of each first convex portion 31 is arranged at the same height level as the stepped surfaces 21f and 22f. Further, among the three first convex portions 31 constituting the connecting convex portion 12, the first convex portion 31 arranged on the innermost side in the short side direction B has a short side as shown in FIGS. 3 to 5. It is arranged at a position overlapping the stepped surfaces 21f and 22f with respect to the direction B, and its upper surface is integrally connected to the stepped surfaces 21f and 22f at the same plane level.

As shown in FIG. 4, the first connecting recess 13 is also formed on both end faces 11a and 11b of the packing main body 11, respectively. More specifically, the connecting first recess 13 is formed on the left end surface 22a of the base 22 in FIG. 4 and the right end surface 21b of the base 21 in FIG. These two connecting first recesses 13 are arranged point-symmetrically with respect to the center points of the packing main body 11 in the long side direction A and the short side direction B. These two connecting first concave portions 13 are formed on the left end surface 22a, three first concave portions 32 that can be fitted with each of the three first convex portions 31, and three right end surfaces 21b. It is composed of three first concave portions 32 that can be fitted with each of the first convex portions 31. The three first concave portions 32 constituting the connecting first concave portion 13 are arranged so as to be separated from each other in the short side direction B, and the three first convex portions of the connecting convex portion 12 of another foundation packing 10 of the same type. It is arranged so that it can be fitted with 31. As shown in FIGS. 3 and 5, each first recess 32 is arranged at a position slightly lower than the upper surface 11c of the packing main body 11 and opens downward. Further, of the three first recesses 32 constituting the connecting first recess 13, the first recess 32 arranged on the innermost side in the short side direction B is in the short side direction as shown in FIGS. 3 to 5. It is arranged at a position overlapping the stepped surfaces 21f and 22f with respect to B, and a part of the corresponding stepped surfaces 21f and 22f is cut out. That is, of the three first recesses 32 constituting the connecting first recess 13, the first recess 32 arranged on the innermost side in the short side direction B opens not only downward but also upward.

As shown in FIG. 5, the four elastic members 14 are arranged in the four grooves 21h, 21i, 22h, and 22i. The elastic material 14 is not entirely buried in the grooves 21h, 21i, 22h, 22i, but is partially buried in the grooves 21h, 21i, 22h, 22i, but the rest is buried in the grooves 21h, 21i, 22h, It is exposed from 22i. Therefore, even if the elastic material 14 is compressed over time by the packing main body 11 and the foundation 1 or the base 2, the compression is relaxed by the grooves 21h, 21i, 22h, 22i, and the elastic force is maintained. Further, since the four elastic members 14 are arranged in the grooves 21h, 21i, 22h, and 22i, the positional deviation can be suppressed. Further, the two elastic members 14 provided on the upper surface 11c side of the packing main body 11 are arranged so as to face the stepped surfaces 21f and 22g in the vertical direction C.

As shown in FIG. 2, each elastic material 14 extends along the long side direction A, and both ends of the long side direction A are outside the long side direction A of the packing main body 11 at both end surfaces 11a and 11b. Have been placed. The elastic material 14 in the present embodiment is arranged so as to protrude from both end faces 11a and 11b of the packing main body 11 so that the end portion thereof reaches the position of the central portion of the first convex portion 31 in the long side direction A. There is. Further, as shown in FIG. 2, one end of each elastic member 14 in the long side direction A is arranged on the innermost side of the short side direction B of the three first convex portions 31 constituting the connecting convex portion 12. It is arranged so as to face the first convex portion 31 in the vertical direction C.

The constituent material of the elastic material 14 is not particularly limited, and examples thereof include a resin material and a rubber material. When the elastic material 17 is provided on the upper surface 11c and the lower surface 11d of the packing main body 11, the elastic material 14 may be fitted into the grooves 21h, 21i, 22h, 22i without using an adhesive. Further, as the elastic material 17, for example, a rubber tape, a urethane tape, a foamed resin tape, or the like may be used.

As shown in FIGS. 3 and 4, the plurality of connecting second recesses 15 are formed by the plurality of second convex portions 15a, the two overhanging portions 15b, and the outer surfaces 21f and 22f of the bases 21 and 22 in the short side direction B. It is defined and configured. That is, the plurality of connecting second recesses 15 are formed side by side along the long side direction A on each of the side surfaces 11e and 11f of the packing main body 11 in the short side direction B.

The plurality of second convex portions 15a project outward from each of the outer surfaces 21f and 22f in the short side direction B and are arranged in the long side direction A. The plurality of second convex portions 15a fit the connecting convex portion 12 (that is, the three first convex portions constituting the connecting convex portion 12) between the two second convex portions 15a adjacent to the long side direction A. They are arranged at equal intervals along the long side direction A so that they can be combined. The overhanging portion 15b is formed so as to project outward from each of the upper end portions of the outer surface surfaces 21f and 22f in the short side direction B. Further, the overhanging portion 15b is formed over the entire length of the outer surfaces 21f and 22f in the long side direction A, and is integrally connected to the upper ends of the plurality of second convex portions 15a. As shown in FIG. 5, the upper surface of the overhanging portion 15b constitutes a part of the upper surface 11c of the packing main body 11. As shown in FIGS. 3 and 5, each of the connecting second recesses 15 defined by the second convex portion 15a and the overhanging portion 15b is arranged at a position slightly lower than the upper surface 11c of the packing main body 11. And it opens downward.

Subsequently, a state when a plurality of foundation packings 10 are connected in the long side direction A will be described below with reference to FIG.

The foundation packing 10 is usually arranged on the rising portion 1b of the foundation 1, and is sandwiched and fixed between the foundation 2 and the foundation 1. That is, when a plurality of foundation packings 10 are arranged between the foundation 1 and the foundation 2, as shown in FIG. 6A, the three first convex portions 31 of the connecting convex portions 13 of one foundation packing 10 Is fitted into the three first concave portions 32 of the first concave portion for connection of another foundation packing 10 of the same type, and the three first convex portions 31 of the convex portion 13 for connection of another foundation packing 10 are 1 The two foundation packings 10 are fitted into the three first recesses 32 of the first recesses for connection, and both foundation packings 10 are connected in the long side direction A.

When a plurality of foundation packings 10 are connected in the long side direction A in this way, the elastic members 14 of each foundation packing 10 come into contact with each other at the ends in the long side direction A as shown in FIG. 6 (b). It is compressed in the long side direction A. Further, each elastic material 14 is also compressed in the vertical direction C by the foundation packing 10 and the foundation 1, and by the foundation packing 10 and the foundation 2. As a result, the gap between the foundation 1 and the foundation 2 and the foundation packing 10 and the gap between the connected foundation packing 10 are filled with the elastic material 14.

As shown in FIG. 6, even when the two connected foundation packings 10 are slightly separated from each other along the long side direction A, the ends of the elastic members 14 come into contact with each other and shrink in the long side direction A. Further, the elastic material 14 is arranged at a position facing the first convex portion 31 and the first concave portion 32 in the vertical direction C. Therefore, as shown in FIG. 6B, most of the gap communicating with the short side direction B between the two foundation packings 10 is closed by the first convex portion 31 whose tip fits into the second concave portion 32. The peeling and other gaps are closed by the portions of the elastic material 14 protruding from the end faces 11a and 11b of the packing body 11. As a result, a gap communicating with the short side direction B between the two foundation packings 10 is less likely to occur.

As a modification, even if the first convex portion 31 has a convex shape that protrudes only from the central portion of the end surface 11a in the vertical direction C, it protrudes from the end surfaces 11a and 11b of the packing body 11 of the elastic material 14. The portion enters the gap between the end faces 11a and 11b of both packing bodies (the gap existing above and below the first convex portion 31) due to the pressing force from the foundation 1 and the base 2. Therefore, as in the above-described embodiment, a gap communicating with the two foundation packings 10 in the short side direction B is less likely to occur.

Subsequently, a state when a plurality of foundation packings 10 are connected in the short side direction B will be described below with reference to FIG. 7.

When connecting a plurality of foundation packings 10 in the short side direction B, as shown in FIG. 7A, the three first convex portions 31 of the connecting convex portions 12 of one foundation packing 10 are of the same type. Both foundation packings 10 are connected in the short side direction B by fitting into the second connecting recess 15 of another foundation packing 10.

When a plurality of foundation packings 10 are connected in the short side direction B in this way, the end of each elastic member 14 of another foundation packing 10 (foundation packing 10 at the lower part in FIG. 7) becomes one foundation packing 10 (FIG. 7). 7 It comes into contact with the side surface 11f of the foundation packing 10) located at the upper center and is compressed in the short side direction B. Further, each elastic material 14 is also compressed in the vertical direction C by the foundation packing 10 and the foundation 1, and by the foundation packing 10 and the foundation 2. As a result, the gap between the foundation 1 and the foundation 2 and the foundation packing 10 and the gap between the connected foundation packing 10 are filled with the elastic material 14 as described above.

Even when the two foundation packings 10 connected in the short side direction B are slightly separated along the long side direction A, the end portion of the elastic material 14 is in contact with the side surface 11f of the packing main body 11. Further, the elastic material 14 is arranged at a position facing the first convex portion 31 in the vertical direction C. Therefore, as in the case where the foundation packing 10 described above is connected in the long side direction A, most of the gaps communicating with the long side direction A between the two foundation packings 10 have a tip of the second concave portion 15 for connection. It is closed by the connecting convex portion 13 (first convex portion 31) fitted to the above, and the other gaps are closed by the elastic material 14. As a result, a gap communicating with the two foundation packings 10 in the long side direction A is less likely to occur.

In the present embodiment, the three first convex portions 31 constituting the connecting convex portion 12 are arranged so that the second convex portion 15a can be fitted between the two adjacent first convex portions 31. There is. Therefore, as shown in FIG. 7B, another foundation packing 10 is arranged in the long side direction A with respect to one foundation packing 10 by shifting the pitch of the first convex portion 31 in the long side direction A. It becomes possible to do. Also in this case, as described above, a gap communicating with the two foundation packings 10 in the long side direction A is less likely to occur.

As described above, according to the foundation packing 10 of the present embodiment, the connecting convex portion 12 of another foundation packing 10 of the same type is fitted into the connecting first concave portion 13 of one foundation packing 10 to form both. In a state where the foundation packings 10 are connected in the long side direction A, even if both foundation packings 10 are slightly separated in the long side direction A, the ends of the elastic materials 17 of both foundation packings 10 in the long side direction A are in contact with each other. Along with being in contact with each other, the portion contracted in the long side direction A or the vertical direction C due to the contact enters the gap between the two foundation packings (packing main body) 10. Therefore, even when the two foundation packings 10 are slightly separated from each other in the long side direction A, it is possible to suppress the formation of a gap communicating with the short side direction B between the two foundation packings 10.

Further, the connecting convex portion 12 (first convex portion 31) extends from a position below the upper surface 11c of the packing main body 11 to the lower end of the packing main body 11, and the connecting first concave portion 13 (first concave portion 32). Is arranged at a position below the upper surface 11c of the packing main body 11 and opens downward. As a result, when another foundation packing 10 of the same type is connected to one foundation packing 10 in the long side direction A, the upper surface of the connecting convex portion 12 of one foundation packing 10 is used for connecting another foundation packing 10. It is possible to connect by pressing the upper wall portion of the first recess 13 from above. Therefore, even if the upper surface of the rising portion 1b of the foundation 1 is uneven, both foundation packings 10 can be stably arranged and fixed.

Further, since the stepped surfaces 21f and 22f and the inclined surfaces 21g and 22g are formed on the portion of the packing main body 11 facing the elastic material 14, both foundation packings 10 connected in the long side direction A are in the long side direction. Even if it is slightly separated from A, the elastic material 14 is likely to be guided to the gap between the two foundation packings. Therefore, it is possible to further suppress the gap communicating in the short side direction B between the two foundation packings 10 and above the connecting convex portion 12.

Further, the stepped surfaces 21f and 22f are arranged at the same height level as the upper surface of the connecting convex portion 12 (first convex portion 31). As a result, even when the two foundation packings 10 connected in the long side direction A are slightly separated from each other in the long side direction A, the gap communicating with the short side direction B is between the two foundation packings 10 and the connecting convex portion. It is possible to further suppress the occurrence above 12.

Further, the elastic material 14 is attached to the grooves 21h, 21i, 22h, 22i. As a result, even if the elastic material 14 is compressed by the packing main body 11 and the foundation 1 or the base 2 over time, the compression is relaxed by the grooves 21h, 21i, 22h, 22i, and the elastic force is maintained. Therefore, ventilation can be prevented in the long term.

Further, a plurality of connecting second recesses 15 are formed in the packing main body 11 along the long side direction A. As a result, another foundation packing 10 of the same type as one foundation packing 10 can be connected in the short side direction B at a desired position in the long side direction A of one foundation packing 10.

Further, the connecting second recess 15 is arranged at a position lower than the upper surface 11c of the packing main body 11 and opens downward. As a result, the area of the upper surface 11c of the packing main body 11, that is, the upper surface 11c of the foundation packing 10 is not reduced even if the plurality of connecting second recesses 15 are provided. Therefore, the area of contact with the base 2 of the foundation packing 10 becomes large, and the base 2 is less likely to sink.

Further, according to the foundation packing 10 of the present embodiment, when another foundation packing 10 of the same type is connected to one foundation packing 10 in the short side direction B, two adjacent second convexes of one foundation packing 10 are used. The connecting convex portions 15 (three first convex portions 31) of another foundation packing 10 are fitted between the portions 15a to connect the two, and the second convex portion 15a of one foundation packing 10 is separated. It is possible to fit between two adjacent first convex portions 31 of the foundation packing 10 of the above and to connect the two. Therefore, in the long side direction A, it is possible to improve the degree of freedom in connecting another foundation packing 10 to one foundation packing 10. Further, the connecting first recess 13 is composed of a plurality of first recesses 32. As a result, when another foundation packing 10 of the same type is connected to one foundation packing 10 in the long side direction A, both foundation packings 10 are less likely to shift in the short side direction B.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. The foundation packing 10 in the above-described embodiment has four elastic materials 14, but one or two elastic materials 14 may be provided only on the upper surface 11c of the packing main body 11. Also in this case, similarly to the above, even when both foundation packings 10 are slightly separated in the long side direction A, it is possible to suppress the formation of a gap communicating with the short side direction B between the two foundation packings 10. It becomes. Further, the number of elastic materials 14 may be appropriately determined. Further, both ends of the elastic material 14 in the above-described embodiment are arranged outside the both end faces 11a and 11b of the packing main body 11 in the long side direction A, but in the present invention, one end face 11a of the packing main body 11 is arranged. , 11b may be arranged so as to project outward from the long side direction A. The amount of protrusion of the elastic material 14 is preferably within the range of the protrusion length of the opposed connecting convex portion 13 (first convex portion 31).

The packing main body 11 may have a hole for inserting an anchor bolt into a simple plate-shaped member. Further, the members (a pair of bases 21 and 22 and the connecting portion 23) constituting the packing main body 11 may be formed with a plurality of recesses that open downward or cavities inside. In this way, since the foundation packing is manufactured, it is possible to suppress an increase in the amount of raw materials used, and it is possible to suppress an increase in the weight of the foundation packing.

The connecting convex portion 12 may be composed of two and four or more first convex portions 31. Further, the connecting convex portion 12 may be formed only on one of the end faces 11a and 11b of the packing main body 11. In this case, it is preferable that the connecting first recess 13 is formed only on the other side of the end faces 11a and 11b. Further, two or more connecting convex portions 12 may be formed on one of the end faces 11a and 11b. In this case, it is preferable that two or more connecting first recesses 13 are formed on the other side of the end faces 11a and 11b. In short, the connecting convex portion 12 and the connecting first concave portion 13 may be arranged so that the foundation packings 10 can be connected to each other in the long side direction A. The connecting first recess 13 may be composed of 2 , and 4 or more first recesses 32 .

Only one connecting second recess 15 may be formed on each of the side surfaces 11e and 11f of the packing main body 11, or one or more connecting second recesses 15 are formed on only one of the side surfaces 11e and 11f. You may be. Further, the connecting second recess 15 may not be provided in the foundation packing 10. The connecting second recess 15 does not have to be open downward.

The packing main body 11 may be provided with grooves 21h, 21i, 22h, 22i having 1 to 3 and 5 or more, or may not be provided with the grooves themselves. Stepped surfaces 21f and 22f and inclined surfaces 21g and 22g are provided at both ends of the packing body 11 in the long side direction A and facing the elastic material 14, but one end of the packing body 11 in the long side direction A. The stepped surface and / or the inclined surface may be provided on the packing body 11, and the stepped surfaces 21f and 22f and the inclined surfaces 21g and 22g may not be provided on the packing main body 11. Further, the stepped surfaces 21f and 22f may not be arranged at the same height level as the upper surface of the connecting convex portion 12 (first convex portion 31).

1 Foundation 2 Foundation 10 Foundation packing 11 Packing body 11a, 11b End surface 11c Top surface 12 Convex part for connection 13 First concave part for connection 14 Elastic material 15 Second concave part for connection 21f, 22f Step surface 21g, 22g Inclined surface

Claims (1)

A airtightness of the elongated basic packing continuous to be interposed between the base and the foundation as airtight between the foundation and the foundation,
A pair of substrates extending in the long side direction,
It is provided with a connecting portion for connecting the pair of substrates in the short side direction.
At least one of the pair of substrates has a connecting portion formed at one end and a connected portion formed at the other end in the long side direction.
The connecting portion has a plurality of convex portions protruding from a position below the upper surface of the substrate on one end surface of the one substrate.
The connected portion has a plurality of recesses recessed from a position below the upper surface of the substrate on the other end surface of the one substrate.
The foundation packing, wherein the recess is open downward.

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