JP7221153B2 - Threaded portion structure of screw and fixing structure of fixed member - Google Patents

Description

TECHNICAL FIELD The present invention relates to a threaded portion structure for a screw threaded into a wooden portion covered with a waterproof sheet, and a fixing structure for a member to be fixed.

As for the structure of the threaded part of the screw that is screwed into the wooden part covered with the waterproof sheet, for example, a top rail bracket and a top rail are attached to the upper end surface of the panel that forms the base of the roof balcony and is covered with the waterproof sheet. A handrail attachment structure for a roof balcony that is screwed from above is known (see, for example, Patent Document 1). A groove is formed in the coping along the length direction, and a plurality of screw holes are provided in the bottom surface of the groove. After the coping is fixed by screws inserted through the screw holes, the grooves are closed by fitting sealing materials.

JP-A-11-350584

The upper part of the coping fixed as described above is covered with a sealing material, but since there are holes in the waterproof sheet with screws, rainwater and the like can enter the waterproof sheet from either side. If this happens, there is a risk of intrusion into the panel side through the holes in the waterproof sheet, resulting in a problem of low water stopping performance.
SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to provide a threaded portion structure of a screw and a fixing structure for a member to be fixed, which are more excellent in water-stopping properties.

The main invention for achieving this object is a threaded portion structure of a screw that is screwed into a wooden portion covered with a waterproof sheet, and is interposed between the waterproof sheet and the head of the screw. an intervening member that abuts against the waterproof sheet, and the screw has an enlarged diameter portion that has a diameter larger than the outer diameter of the screw on the head side of the screw portion in which the screw thread is formed; An intersecting surface that intersects the axial direction of the threaded portion is provided at the boundary between the threaded portion and the enlarged diameter portion, and penetrates through the interposition member and the waterproof sheet to be screwed together. In the threaded portion structure of the screw, the intersecting surface compresses the interposed member toward the wooden portion.
Other features of the present invention will become apparent from the description of the specification and accompanying drawings.

ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the threaded part structure of a screw, and the fixing structure of a to-be-fixed member which are more excellent in waterproofness.

1 is a perspective view showing a coping mounting structure, which is an example of a threaded portion structure of a screw according to the present invention; FIG. It is a longitudinal cross-sectional view which shows the structure of the handrail wall to which the coping is attached. FIG. 3 is an enlarged view of part A in FIG. 2 ;

Hereinafter, a threaded portion structure of a screw according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the threaded portion structure of the screw of the present embodiment will be described by taking an example of applying it to a handrail wall 3 of a holder 2 as a member to be fixed that holds a coping 1. As shown in FIG.
As shown in FIG. 1, the top rail 1 is fitted and attached to a holder 2 fixed to a wooden portion 3a of a handrail wall 3 with screws 4. As shown in FIG.

The wooden part 3a forms a handrail wall 3 that partitions the inside and outside of the balcony, the outer peripheral surface of which is covered with a waterproof sheet 3b, and surface materials 3c are provided on the inner and outer surfaces of the balcony.
In the following description, the direction along the wall surface of the handrail wall 3 is defined as the in-plane direction, and the direction perpendicular to the wall surface is defined as the out-of-plane direction.

As shown in FIG. 2, the top rail 1 is provided over the entire length of the handrail wall 3 along the longitudinal direction of the handrail wall 3. It has a side surface portion 1b that is connected almost vertically from the end portion in the out-of-plane direction and faces the side surface of the upper portion of the handrail wall 3. As shown in FIG. On the inner surface of the side portion 1b of the coping 1, a locking portion 1c that protrudes inward and is locked to the holder 2 is provided.

A plurality of holders 2 are provided at appropriate intervals in the in-plane direction of the handrail wall 3 . That is, the holder 2 is a member whose width in the longitudinal direction of the handrail wall 3 is sufficiently smaller than that of the handrail wall 3 .

The holder 2 includes a rectangular top end fixing portion 2a screwed to the wooden portion 3a, two upwardly extending portions 2b extending upward from both ends of the top end fixing portion 2a in the out-of-plane direction. From the upper ends of the two upwardly extending portions 2b, the horizontal surface portion 2c extends in the inward and outward directions of the balcony in the out-of-plane direction to form a substantially horizontal surface, and the horizontal surface portion 2c extends from the horizontal surface portion 2c so that the front side is lower. and an extending arm portion 2d that is curved in such a manner. The extending arm portion 2d extends so that the tip thereof is positioned outside the upper portion of the handrail wall 3, and the engaging portion 1c of the top rail 1 is engaged with the tip thereof.

The holder 2 is fixed with a screw 4 via a rubber sheet 5 as an interposed member on a waterproof sheet 3b covering the top end of the wooden portion 3a. Here, the waterproof sheet 3b has a thin sheet shape, for example, TYVEK/Tyvek (registered trademark) manufactured by E.I. , is compressed by the tightened screw 4 . An adhesive 6 is provided between the rubber sheet 5 and the waterproof sheet 3b.

The top end fixing portion 2a of the holder 2 is provided with four elongated holes 2e through which the screws 4 can be inserted. It is inserted and fixed. The long holes 2e are provided along the out-of-plane direction on the four sides of the top end fixing portion 2a, and the screws 4 are inserted through the two diagonally positioned long holes 2e. Here, the hole through which the screw 4 is inserted is not limited to the elongated hole.

As shown in FIG. 3, a rubber sheet 5 having a size sufficiently larger than the long hole 2e is interposed between the top fixing portion 2a and the waterproof sheet 3b. The rubber sheet 5 is integrally formed by interposing a sheet-like core material 5a such as non-woven fabric, cloth, or net between two rubber sheet members. The two sheet members may be members having the same thickness, elasticity, material, etc., or may be members different from each other. Further, in the present embodiment, the rubber sheets 5 are provided corresponding to the respective elongated holes 2e, but one rubber sheet 5 having a size that accommodates the four elongated holes 2e may be used.

The screw 4 is a so-called stepped screw having, on the side of the head 4a, a cylindrical portion 4c having a diameter D1 larger than the screw outer diameter D2 of the threaded portion 4d and having no thread 4b. and the threaded portion 4d forms an intersecting plane 4e orthogonal to the axial direction of the threaded portion 4d. Here, the cylindrical portion 4c corresponds to the enlarged diameter portion.

In addition, the length L1 of the cylindrical portion 4c is longer than the thickness t1 of the top end fixing portion 2a and shorter than the total thickness t1+t2 of the thickness t1 of the top end fixing portion 2a and the thickness t2 of the rubber sheet 5. there is Therefore, when the threaded portion 4d is inserted through the elongated hole 2e of the crown fixing portion 2a, the rubber sheet 5, and the waterproof sheet 3b, and is screwed into the wooden portion 3a and tightened, the intersecting surface 4e of the screw 4 is The rubber sheet 5 is pressed toward the wooden portion 3a to compress the rubber sheet 5. - 特許庁That is, the intersecting surface 4e of the screw 4 presses the rubber sheet 5 and the waterproof sheet 3b toward the wooden portion 3a.

In the method of attaching the coping 1 to which the threaded portion structure of the screw 4 of this embodiment is applied, first, a pilot hole (not shown) corresponding to the outer diameter D2 of the screw is formed in the wooden portion 3a covered with the waterproof sheet 3b. , a through hole (not shown) having an inner diameter smaller than that of the pilot hole is formed in the rubber sheet 5 .
Next, the through-holes of the rubber sheet 5 are aligned with the prepared holes of the waterproof sheet 3b and the wooden portion 3a and placed on the waterproof sheet 3b.

Next, the holder 2 is placed by aligning the pilot hole, the through hole, and the slot 2e, and the screw 4 is inserted from above into the slot 2e, the through hole, and the pilot hole and screwed to the wood portion 3a, and the holder is mounted. 2 is fixed to the handrail wall 3. At this time, the adhesive 6 makes the gap between the rubber sheet 5 and the waterproof sheet 3b watertight.
Next, the top rail 1 is put on the handrail wall 3 and the holder 2 from above, the top rail 1 is locked to the holder 2, and the top rail 1 is attached to the handrail wall 3. - 特許庁

According to the threaded portion structure of the screw of this embodiment, the threaded screw 4 has an intersection surface 4e forming a boundary between the enlarged diameter portion 4c having a diameter D1 larger than the screw outer diameter D2 and the threaded portion 4d. Since the rubber sheet 5 is compressed toward the wooden portion 3a, it is possible to close the screw hole formed in the rubber sheet 5 by screwing the screw 4 with the intersecting surface 4e. In addition, since the intersection plane 4e compresses the rubber sheet 5 toward the wooden part 3a, the waterproof sheet 3b is pressed against the wooden part 3b together with the rubber sheet 5, so that the gap between the rubber sheet 5 and the waterproof sheet 3b and the waterproof sheet Water is also cut off between the portion 3b and the wooden portion 3a. That is, it is possible to prevent water from entering the wooden portion 3a side of the rubber sheet 5 on which the intersecting surface 4e of the screw 4 is compressed. Therefore, it is possible to prevent rainwater or the like from entering the wooden portion 3a through the threaded portion of the screw 4. As shown in FIG. For this reason, it is possible to provide a threaded portion structure for the screw 4 that is more excellent in waterproofing.

Moreover, since the adhesive 6 is provided between the rubber sheet 5 and the waterproof sheet 3b, the gap between the rubber sheet 5 and the waterproof sheet 3b is watertight. Therefore, it is possible to prevent rainwater and the like from entering from between the rubber sheet 5 and the waterproof sheet 3b, thereby providing a higher waterproof performance.

Further, since the rubber sheet 5 having elasticity higher than that of the waterproof sheet 3b is interposed between the holder 2 and the waterproof sheet 3b, the screws 4 that are screwed together are pressed more strongly, and the screws of the rubber sheet 5 are tightened. It is possible to more reliably prevent rainwater and the like from entering through the holes.

Further, since the rubber sheet 5 has the core material 5a inside, when the screw 4 is screwed to form the screw hole in the rubber sheet 5, the rubber sheet 5 is not torn and propagated. It is possible to prevent Therefore, it is possible to more reliably prevent rainwater or the like from entering through the screw hole.

In the above embodiment, the interposed member is the rubber sheet 5, but this is not the only option. For example, a member such as a sheet material made of rigid resin, which is more easily compressed than the waterproof sheet due to the intersecting surfaces 4e of the tightened screws. It doesn't matter if it is.

In the above embodiment, an example in which the threaded portion structure of the screw of the present invention is applied to fix the holder 3 to the wooden portion 3a of the handrail wall 3 has been described, but the present invention is not limited to this. That is, the wooden part to which the screw is screwed is not limited to the handrail wall, and the member fixed by the screw is not limited to the holder. Any part can be applied as long as it is a part to which a screw is screwed. For this reason, it can be applied not only when fixing some kind of member, but also when a screw is provided with a gap between the bearing surface of the screw head and the waterproof sheet, such as for hooking a member such as a spring or wire. is.

In the above embodiment, as a method of attaching the coping 1 to which the threaded portion structure of the screw 4 is applied, a pilot hole is formed in the wooden portion 3a covered with the waterproof sheet 3b, and the rubber sheet 5 has an inner diameter smaller than that of the pilot hole. Although an example of forming a through-hole has been described, the present invention is not limited to this. A rubber sheet is placed on a wooden part covered with a waterproof sheet, and pilot holes having the same diameter are formed in the waterproof sheet, the wooden part, and the rubber sheet. I don't mind.

The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit and interpret the present invention. The present invention can be modified and improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof.

This embodiment includes at least the following inventions.
A threaded portion structure of a screw that is screwed into a wooden portion covered with a waterproof sheet, the insert being interposed between the waterproof sheet and the head of the screw and brought into contact with the waterproof sheet. The screw has an enlarged diameter portion having a diameter larger than the outer diameter of the screw and a boundary between the screw portion and the enlarged diameter portion. and an intersecting surface that intersects the axial direction of the threaded portion, penetrates the interposing member and the waterproof sheet, and the intersecting surface intersects the interposing member in a screwed state. The threaded portion structure of the screw is characterized by being compressed toward the wood portion.

According to such a threaded portion structure of a screw, the intersecting surface forming the boundary portion between the enlarged diameter portion having a diameter larger than the outer diameter of the screw and the thread portion of the threaded screw faces the wood portion side of the interposed member. Since it is compressed to a degree, it is possible to close the threaded hole formed in the interposed member by screwing the screw with the intersecting surface. In addition, since the intersecting surface compresses the interposed member toward the wooden portion, the interposed member and the waterproof sheet are pressed against the wooden portion. is also shut off. Therefore, it is possible to prevent rainwater or the like from entering the wooden portion through the threaded portion of the screw. For this reason, it is possible to provide a threaded portion structure of a screw that is more excellent in waterproofing.

Such a threaded portion structure of a screw is characterized in that an adhesive is provided between the interposed member and the waterproof sheet.
According to such a threaded portion structure of the screw, since the adhesive is provided between the interposed member and the interposed member, the space between the interposed member and the waterproof sheet becomes watertight. For this reason, it is possible to prevent rainwater and the like from entering between the interposed member and the waterproof sheet, thereby providing a higher waterproof performance.

The threaded portion structure of the screw is characterized in that the interposition member is a rubber sheet.
According to such a threaded portion structure of the screw, since the interposed member is a rubber sheet having higher elasticity than the waterproof sheet, it is possible to press the rubber sheet, the waterproof sheet, and the wooden portion more strongly. It is possible to more reliably prevent rainwater or the like from entering through the formed screw hole.

In such a screw engagement structure, the rubber sheet has a core inside.
According to this threaded portion structure of the screw, since the rubber sheet has a core material inside, the rubber sheet is torn when the screw is threaded to form a screw hole in the rubber sheet. It is possible to prevent it from propagating.
Further, the member to be fixed arranged in contact with the interposing member is sandwiched and fixed between the screw and the interposing member due to the threaded portion structure of the screw. It is a fixing structure of a member to be fixed.
According to such a fixing structure for a member to be fixed, even if the member to be fixed is sandwiched and fixed between the screw and the interposing member, even if water is prevented from entering between the member to be fixed and the interposing member. Even if water enters the threaded part side, the intersecting surface of the screw compresses the interposed member toward the wood part side, so it is possible to prevent water from entering the wood part where the screw is screwed. is. That is, it is possible to prevent water from entering the wood portion side of the interposed member where the crossing surfaces of the screws are compressed.

2 holder, 3a wooden part, 3b waterproof sheet, 4 screw, 4a head,
4b thread, 4c cylindrical portion, 4d threaded portion, 4e intersecting surface, 5 rubber sheet,
6 adhesive,
D1 diameter of cylindrical part, D2 screw outer diameter,

Claims (5)

A threaded portion structure of a screw that is screwed to a wooden portion covered with a waterproof sheet,
an interposition member interposed between the waterproof sheet and the head of the screw and abutted against the waterproof sheet;
The screw is
An enlarged diameter portion having a diameter larger than the outer diameter of the screw on the head side of the threaded portion, and a boundary portion between the threaded portion and the enlarged diameter portion in the axial direction of the threaded portion. a single member having an intersecting cross plane and penetrating the interposed member and the waterproof sheet,
A threaded portion structure of a screw, wherein the intersecting surface compresses the interposed member toward the wooden portion in a threaded state. The threaded portion structure of the screw according to claim 1,
The threaded portion structure of the screw, wherein the interposed member has an adhesive provided between it and the waterproof sheet. The threaded portion structure of the screw according to claim 1 or claim 2,
The threaded portion structure of the screw, wherein the interposition member is a rubber sheet. The threaded portion structure of the screw according to claim 3,
The threaded portion structure of the screw, wherein the rubber sheet has a core material inside. With the threaded portion structure of the screw according to any one of claims 1 to 4 ,
A structure for fixing a member to be fixed, wherein the member to be fixed arranged in contact with the interposition member is sandwiched and fixed between the screw and the interposition member.

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