JP6968747B2 - Joint structure - Google Patents

Description

The present invention relates to a joint structure of two members.

As a joining structure of two members, for example, a joining structure for joining an eaves gutter and a waterproof cap that closes one of the drain holes provided at both ends of the eaves gutter is known ( For example, see Patent Document 1). In this joint structure, a plate-shaped waterproof cap that covers the drainage hole provided in the eaves gutter is interposed between the eaves gutter and a waterproof sheet made of soft synthetic resin. It is attached to. The water stop cap and the water stop sheet are each provided with an insertion hole through which a screw screwed into an eaves gutter is inserted.

Then, the water stop cap on which the water stop sheets are stacked is arranged so as to cover the drain hole of the eaves gutter, and the screw entering from the water stop cap side is screwed into the eaves gutter through the insertion hole. .. Some have a wet sealant around the screw holes through which the screws screwed into the eaves gutter penetrate.

Japanese Unexamined Patent Publication No. 6-299607

In the above-mentioned joint structure, since a screw entering from the water stop cap side is screwed into the eaves gutter with a water stop sheet interposed between the eaves gutter, the water stop sheet is compressed by tightening the screws. At this time, if the waterproof sheet is crushed to a state where it is not elastically deformed, a gap is likely to occur due to aging or the like, and there is a risk of water leakage. Further, since the screw tightening amount and the method of applying the sealing material differ depending on the skill of the operator and the like, there is a problem that sufficient water stopping performance may not be obtained.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a joining structure capable of joining with high water stopping performance by a simple operation.

In order to achieve such an object, the joining structure of the present invention is a joining structure of two members in which a screw inserted into an insertion hole provided in a first member is screwed into a second member to be joined. A seal member is interposed between the first member and the second member, and the seal member is inserted into the insertion hole, and the first member has a facing surface facing the second member. The first member has a tubular portion that protrudes from the opposite surface on the opposite side, and the first member has an annular protrusion that protrudes from the anti-opposite surface and has an inner diameter larger than that of the insertion hole and surrounds the insertion hole. The screw is screwed into the second member and the head is in contact with the annular protrusion, and the tubular portion is formed inside the annular protrusion with the first member and the screw. It is a joint structure characterized by being compressed by the head of the head.

According to such a joining structure, when the screw inserted into the insertion hole of the first member is screwed into the second member, the head of the screw protrudes from the opposite surface of the first member in an annular protrusion. It comes into contact with the part. Therefore, since the screws are tightened by a certain amount regardless of the operator, it is possible to suppress variations in the finished state depending on the operator. Further, since a space of a predetermined space is formed between the head of the screw and the opposite surface of the first member, the first member and the head of the screw can be connected by a simple operation of tightening the screw. It is possible to compress the tubular portion by a certain amount.

Further, since the tubular portion protruding from the opposite surface of the first member is compressed between the first member and the head of the screw, it is screwed into the second member and is screwed from the second member. It is possible to provide high water stopping performance without sealing around the protruding screw. For this reason, since sealing is not performed, it is possible to join with high water stopping performance without being left to the skill of the operator. Further, since the tubular portion is compressed inside the annular protrusion, it is not exposed to the outside. Therefore, it is possible to realize a aesthetically pleasing joint structure.

The joint structure is characterized in that the inner diameter of the annular protrusion is smaller than the outer diameter of the head of the screw.
According to such a joining structure, since the inside of the annular protrusion can be covered by the head of the screw, it is possible to more reliably prevent the compressed tubular portion from being exposed to the outside.

The joining structure is characterized in that the wall thickness of the tubular portion is thicker than the amount of protrusion of the annular protrusion from the opposite surface.
According to such a joining structure, it is possible to reliably compress the tubular portion that has entered between the first member and the head of the screw when the screw is tightened.

The joint structure is characterized in that the distance between the insertion hole and the annular protrusion in the diametrical direction is wider than the protrusion amount of the tubular portion that protrudes from the opposite surface.
According to such a joining structure, even if the cylindrical portion bent when the screw is tightened enters between the first member and the head of the screw, it does not jump out of the annular protrusion. It is possible to prevent the tubular portion from being exposed to the outside.

In such a joint structure, the volume of the space formed between the counter-opposed surface and the head by the head of the screw abutting against the annular protrusion is the opposite of the tubular portion. It is characterized by being larger than the volume of the portion protruding from the facing surface.

According to such a joining structure, when the head of the screw is in contact with the annular protrusion, the cylindrical portion that has entered between the first member and the head of the screw is formed between the first member and the head. Since it is housed in the space between them, it is possible to prevent the tubular portion from being exposed to the outside.

According to the present invention, it is possible to provide a joining structure that can be joined with high water stopping performance by a simple operation.

It is a perspective view which shows an example of the joining structure which concerns on this embodiment. It is a perspective view which shows the joint part of the eaves gutter member and the downspout. It is a perspective view seen from the lower side which shows the structure of the joint structure which concerns on this embodiment. It is a perspective view seen from the upper side which shows the structure of the joint structure which concerns on this embodiment. It is a vertical sectional view which shows the joining structure.

Hereinafter, the joint structure according to the embodiment of the present invention will be described with reference to the drawings, taking as an example the joint portion of the eaves gutter member attached to a building or the like.

In the present embodiment, when the state in which the eaves gutter member is attached to the building is viewed toward the building, the up-down direction is shown as the up-down direction and the left-right direction is shown as the left-right direction. Further, even if it is each part of the eaves gutter member, or even if each member constituting the eaves gutter member is in a single state, it is in the vertical direction and the horizontal direction in the state of being attached to a building or the like. The direction is specified by the direction and explained.

As shown in FIG. 1, the eaves gutter member 1 shown in the present embodiment has left and right drain holes 10a that allow rainwater or the like in the gutter portion 10 of the eaves gutter member 1 to flow to the downspout 2 (FIG. 2). It has both ends in the direction. The drainage hole 10a on the left side is closed by the cover member 3. As shown in FIG. 2, the drainage hole 10a on the right side communicates with the downspout 2 attached to the eaves gutter member 1 via the connecting member 5. FIG. 2 shows a state in which the connecting member 5 and the downspout 2 are separated from the eaves gutter member 1 in order to show the drainage hole 10a.

The joining structure of the present embodiment is used for the joining portion of the cover member 3 as the first member to the eaves gutter member 1 as the second member. The cover member 3 is attached to the eaves gutter member 1 via a flexible and elastically deformable synthetic tree sealing member 6 (FIGS. 3 and 4) between the cover member 3 and the eaves gutter member 1. ..

The eaves gutter member 1 is an extruded member, and as shown in FIG. 3, an elliptical drainage hole 10a long in the left-right direction is provided on the left-right end side of the bottom plate portion 10b of the gutter portion 10 of the eaves gutter member 1. It is provided. Screw screw holes 10c into which screws 7 for fixing the cover member 3 or the connecting member 5 are screwed are provided on the left and right sides of the drain hole 10a, respectively. In the present embodiment, a truss screw having a low head 7a and a large outer diameter D1 of the head 7a is used as the screw 7.

As shown in FIGS. 4 and 5, the cover member 3 has a rectangular substantially flat plate shape, and is provided with insertion holes 3a through which screws 7 are inserted on both ends in the longitudinal direction. Further, when attached to the eaves gutter member 1, the facing surface 3b facing the bottom plate portion 10b of the eaves gutter member 1 of the cover member 3 has an outer peripheral protrusion 3c slightly protruding along the outer peripheral portion and a drainage hole. It is provided between the elliptical protrusion 3d that is slightly larger than the portion facing the 10a and protrudes along the contour of the drainage hole 10a, and the outer peripheral protrusions 3c on both the left and right sides of the elliptical protrusion 3d, and is concentric with the insertion hole 3a. It has an arc protrusion 3e formed on the surface of the sill. The amount of protrusion of the outer peripheral protrusion 3c, the elliptical protrusion 3d, and the arc protrusion 3e from the facing surface 3b is the same.

Further, in the cover member 3, the anti-opposite surface 3f on the opposite side of the facing surface 3b is provided with an annular projecting portion 3g formed concentrically with the insertion hole 3a and projecting on the opposite side of the eaves gutter member 1. .. The inner diameter D2 of the annular protrusion 3g is formed to be smaller than the outer diameter D1 of the head portion 7a of the screw 7. Then, when the screw 7 inserted from the cover member 3 side is screwed into the eaves gutter member 1, the outer peripheral edge portion of the head portion 7a of the screw 7 is brought into contact with the annular protrusion 3g, and inside the annular protrusion 3g. A space S is formed between the cover member 3 and the head portion 7a of the screw 7.

The seal member 6 of this embodiment is integrally molded with the cover member 3. The seal member 6 has an outer peripheral water blocking portion 6a provided over the entire circumference inside the outer peripheral protrusion 3c provided on the facing surface 3b of the cover member 3, and an elliptical protrusion 3d on the outside of the elliptical protrusion 3d along the elliptical protrusion 3d. It has an elliptical water stop portion 6b provided, and a circular water stop portion 6c provided inside the arc projection 3e between the outer peripheral water stop portion 6a and the elliptical water stop portion 6b. The outer peripheral water stop portion 6a, the elliptical water stop portion 6b, and the circular water stop portion 6c are integrally connected, and protrude larger than the outer peripheral protrusion 3c, the elliptical protrusion 3d, and the arc protrusion 3e. The protrusions of the outer peripheral water stop portion 6a, the elliptical water stop portion 6b, and the circular water stop portion 6c are the same.

As shown in FIG. 5, the circular water stop portion 6c is provided with a through hole 6d that protrudes from the insertion hole 3a provided in the cover member 3 to the opposite side of the cover member 3 and penetrates in the thickness direction of the cover member 3. It has a tubular portion 6e. The outer peripheral surface of the tubular portion 6e of the seal member 6 integrally molded with the cover member 3 is connected to the insertion hole 3a of the cover member 3.

The tubular portion 6e projects larger than the annular projecting portion 3g provided on the cover member 3. The protrusion amount L1 of the tubular portion 6e from the opposite surface 3f is smaller than the radial distance W between the annular protrusion 3g and the insertion hole 3a. Further, the wall thickness t of the tubular portion 6e is formed to be thicker than the protrusion amount L2 from the opposite surface 3f of the annular protrusion portion 3g. Further, the screw 7 is screwed into the eaves gutter member 1 to be formed inside the annular protrusion 3g, and the volume of the space S between the cover member 3 and the head portion 7a is larger than that of the cover member 3 of the annular protrusion 3g. Is configured to be larger than the volume of the protruding portion 6f.

When the cover member 3 integrated with the seal member 6 is attached to the eaves gutter member 1, first, the seal member 6 side of the cover member 3 is brought into contact with the lower surface of the bottom plate portion 10b of the eaves gutter member 1. At this time, when the positions of the two screw screw holes 10c of the eaves gutter member 1 and the two through holes 6d of the seal member 6 are aligned, the drainage hole 10a of the eaves gutter member 1 becomes the elliptical water stop portion 6b of the seal member 6. Placed inside.

Next, the screw 7 inserted through the through hole 6d is screwed into the screw screw hole 10c, and the cover member 3 and the seal member 6 are attached to the eaves gutter member 1. At this time, when the head portion 7a of the screw 7 is brought into contact with the annular protrusion portion 3g, the outer peripheral water stop portion 6a, the elliptical water stop portion 6b, and the circular water stop portion 6c are compressed, and the sealing member 6 is tubular. The portion 6f protruding from the cover member 3 of the portion 6e is compressed between the cover member 3 and the head portion 7a of the screw 7 inside the annular protruding portion 3g.

According to the joining structure of the present embodiment, when the screw 7 inserted into the insertion hole 3a of the cover member 3 is screwed into the eaves gutter member 1, the head portion 7a of the screw 7 becomes the opposite surface of the cover member 3. It is in contact with the annular protrusion 3g protruding from 3f. Therefore, since the screw 7 is tightened by a certain amount without being left to the operator, it is possible to suppress variations in the finished state depending on the operator. At this time, since a predetermined space S is formed between the head portion 7a of the screw 7 and the opposite surface 3f of the cover member 3, the cover member 3 and the screw can be screwed by a simple operation of tightening the screw 7. It is possible to compress the tubular portion 6e by a certain amount by the head portion 7a of 7.

Further, since the tubular portion 6e protruding from the opposite surface 3f of the cover member 3 is compressed between the cover member 3 and the head portion 7a of the screw 7, for example, it is screwed into the eaves gutter member 1. Therefore, it is possible to provide high water stopping performance without sealing around the screw 7 protruding from the cover member 3. Therefore, since sealing is not performed, it is possible to provide high water stopping performance regardless of the skill of the operator. Further, since the tubular portion 6e is compressed inside the annular protrusion 3g, it is not exposed to the outside. Therefore, it is possible to realize a aesthetically pleasing joint structure.

Further, since the inner diameter D2 of the annular protrusion 3g is smaller than the outer diameter D1 of the head 7a of the screw 7, the inside of the annular protrusion 3g can be covered by the head 7a of the screw 7. Therefore, it is possible to more reliably prevent the compressed tubular portion 6e from being exposed to the outside.

Further, since the wall thickness t of the tubular portion 6e is thicker than the protrusion amount L2 of the annular protrusion 3g, the tubular portion that has entered between the cover member 3 and the head portion 7a of the screw 7 when the screw 7 is tightened. It is possible to reliably compress 6e.

Further, since the distance W between the insertion hole 3a and the annular protrusion 3g in the radial direction is wider than the protrusion amount L1 of the tubular portion 6e, the tubular portion 6e bends when the screw 7 is tightened, and the cover member 3 and the cover member 3. Even if it enters between the head portion 7a of the screw 7, it does not jump out of the annular protrusion 3g. Therefore, it is possible to more reliably prevent the tubular portion 6e from being exposed to the outside.

Further, the volume of the space S formed between the anti-opposing surface 3f and the head 7a when the head 7a of the screw 7 is in contact with the annular projecting portion 3g protrudes from the anti-opposing surface 3f of the tubular portion 6e. Since the volume of the portion 6f is larger than the volume of the portion 6f, the tubular portion 6e that has entered between the cover member 3 and the head portion 7a of the screw 7 when the head portion 7a of the screw 7 is in contact with the annular protrusion portion 3g. Is housed in the space S between the cover member 3 and the head 7a. Therefore, the tubular portion 6e can be accommodated in the space S without being exposed to the outside.

In the above embodiment, the example in which the seal member 6 is integrally molded with the cover member 3 has been described, but the seal member 6 and the cover member 3 may be separate members.

In the above embodiment, the joining structure of the present invention is applied to the joining of the cover member 3 and the sealing member 6 for closing one of the two drain holes 10a provided in the eaves gutter member 1 to the eaves gutter member 1. However, it is not limited to this. For example, as shown in FIG. 2, it may be applied to the joining of the connecting member 5 for communicating the drainage hole 10a provided in the eaves gutter member 1 and the downspout 2 to the eaves gutter member 1. In this case, if the connecting member 5 is integrally provided with a tubular body portion 5a communicating with the drainage hole 10a inside the elliptical water blocking portion 6b of the cover member 3, the joining structure is the same. ..

Further, in the above embodiment, the joint structure for the eaves gutter member 1 has been described as an example, but the present invention is not limited to this, and any joint portion may be used as long as it has water stopping performance and joins two members.

Further, the above-described embodiment is for facilitating the understanding of the present invention, and is not for limiting the interpretation of the present invention. It goes without saying that the present invention can be modified and improved without departing from the spirit thereof, and the present invention includes an equivalent thereof.

1 gutter member, 3 cover member, 3a insertion hole, 3f anti-opposite surface, 3g annular protrusion,
6 Seal member, 6e cylindrical part, 6f part protruding from the opposite surface, 7 screws,
7a head,
S space, W radial distance between the annular protrusion and the insertion hole, t thickness of the tubular part,
D1 Outer diameter of the head, D2 Inner diameter of the annular protrusion, L1 Protrusion amount of the tubular part,
The amount of protrusion of the L2 annular protrusion,

Claims (4)

It is a joining structure of two members in which a screw inserted into an insertion hole provided in the first member is screwed into the second member to be joined.
A sealing member is interposed between the first member and the second member.
The seal member has a cylindrical portion that is inserted into the insertion hole and protrudes from the opposite surface of the first member that faces the second member and that faces the opposite surface.
The first member has an annular protrusion that protrudes from the opposite surface and has an inner diameter larger than that of the insertion hole and surrounds the insertion hole.
The screw is screwed into the second member, and the head is in contact with the annular protrusion.
The tubular portion is compressed by the first member and the head of the screw inside the annular protrusion .
A joining structure characterized in that the distance between the insertion hole and the annular protrusion in the radial direction is wider than the protrusion amount of the tubular portion so as to protrude from the opposite surface. The joint structure according to claim 1.
A joining structure characterized in that the inner diameter of the annular protrusion is smaller than the outer diameter of the head of the screw. The joint structure according to claim 1 or 2.
The joining structure is characterized in that the wall thickness of the tubular portion is thicker than the amount of protrusion of the annular protrusion portion from the opposite surface. The joint structure according to any one of claims 1 to 3.
The volume of the space formed between the counter-opposed surface and the head by abutting the head of the screw on the annular projecting portion is a portion of the tubular portion projecting from the anti-opposing surface. A joint structure characterized by being larger than the volume of.

Images