JP2021188693A - Screwing part structure of screw, and fixing mechanism of fixed member - Google Patents

Abstract

To provide a screwing part structure, etc. of a screw that are more excellent in a water stop property.SOLUTION: A screwing part structure of a screw screwed to a wood part covered by a waterproof sheet comprises an interposed member interposed between the waterproof sheet and the wood part. The screw penetrates the waterproof sheet and the interposed member. The interposed member presses the penetrating screw from an outer peripheral side.SELECTED DRAWING: Figure 3

Description

The present invention relates to a screwed portion structure of a screw screwed into a wooden portion covered with a waterproof sheet, and a fixing structure of a fixed member.

As the screwing part structure of the screw screwed into the wood part covered with the waterproof sheet, for example, a cap tree receiving piece and a cap tree are placed on the upper end surface of the panel formed by forming the base part of the roof balcony and 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 cap tree along the length direction, and a plurality of screw holes are provided on the bottom surface of the groove. Then, after the cap tree is fixed by the screw inserted into the screw hole, the groove is closed by the sealing material.

Japanese Unexamined Patent Publication No. 11-350584

In the cap tree fixed as described above, the upper part of the cap tree is blocked by the sealing material, but since the waterproof sheet has a hole due to the screw, rainwater etc. will infiltrate onto the waterproof sheet from either side. In addition, there is a possibility that the waterproof sheet may infiltrate the panel side through the hole, and there is a problem that the water blocking property is low.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a screw threaded portion structure having better water stopping property and a fixing structure of a fixed member.

The main invention for achieving such an object is a screwed portion structure of a screw screwed into a wood portion covered with a waterproof sheet, and an interposition interposed between the waterproof sheet and the wood portion. A screw screw having a member, the screw penetrating the waterproof sheet and the interposing member, and the interposing member pressing the penetrating screw from the outer peripheral side. It is a joint structure.
Other features of the present invention will be clarified by the description in the present specification and the accompanying drawings.

According to the present invention, it is possible to provide a screw threaded portion structure having better water stopping property and a fixing structure of a member to be fixed.

It is a perspective view which shows the mounting structure of a cap tree which is an example of the screwed part structure of the screw of this invention. It is a vertical sectional view which shows the structure of the handrail wall to which a cap tree is attached. It is an enlarged view of the part A in FIG.

Hereinafter, the screwed portion structure of the screw and the fixing structure of the fixed member according to the embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the screw screwed portion structure of the present embodiment will be described by an example of applying the holder 2 as a fixed member for holding the cap tree 1 to the handrail wall 3.
As shown in FIG. 1, the cap tree 1 is fitted and attached to a holder 2 fixed to a woody portion 3a of a handrail wall 3 by a screw 4.

The xylem portion 3a forms a handrail wall 3 that partitions the inside and outside of the balcony, the outer peripheral surface is covered with a waterproof sheet 3b, and surface materials 3c are provided on the inner surface side and the outer surface side of the balcony.
In the following description, the direction along the wall surface of the handrail wall 3 will be described as the in-plane direction, and the direction orthogonal to the wall surface will be described as the out-of-plane direction.

The cap tree 1 is provided over the entire length of the handrail wall 3 along the in-plane direction (longitudinal direction) of the handrail wall 3, and as shown in FIG. The top surface portion 1a 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 at the upper portion of the handrail wall 3. On the inner surface of the side surface portion 1b of the cap tree 1, a locking portion 1c that projects 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 narrower than that of the handrail wall 3.

The holder 2 has a rectangular top fixing portion 2a screwed to the wood portion 3a, two upward extending portions 2b extending upward from both ends of the top fixing portion 2a in the out-of-plane direction, and 2 A horizontal plane portion 2c extending from the upper end of each of the two upward extending portions 2b in the inward / outward direction of the balcony in the out-of-plane direction to form a substantially horizontal surface, and a horizontal plane portion 2c extending from the horizontal plane portion 2c to lower the front side. It has an extended arm portion 2d that is curved so as to be. The extending arm portion 2d is extended so that the tip thereof is located outside the upper part of the handrail wall 3, and the locking portion 1c of the cap tree 1 is locked to the tip thereof.

The holder 2 is fixed by the screw 4 under the waterproof sheet 3b covering the top end of the woody portion 3a via a rubber sheet 5 as an interposition member whose pressing force against the peripheral surface of the penetrating screw 4 is higher than that of the waterproof sheet 3b. ing. Here, the waterproof sheet 3b has a thin sheet shape, for example, TYVEK \ Tyvek (registered trademark) manufactured by EI DuPont do Numur & Company, and the rubber sheet 5 is thicker than the waterproof sheet 3b. , The peripheral surface of the tightened screw 4 is pressed toward the shaft side of the screw 4. Further, an adhesive 6 is provided between the rubber sheet 5 and the waterproof sheet 3b.

The top fixing portion 2a of the holder 2 is provided with four elongated holes 2e through which the screws 4 can be inserted. In the present embodiment, the screws 4 are inserted into two elongated holes 2e out of the four elongated holes 2e. The holder 2 is fixed by inserting it. The elongated holes 2e are provided in the vicinity of the four corners of the top end fixing portion 2a along the out-of-plane direction, and the screws 4 are inserted into the two elongated holes 2e located diagonally. 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 that of the elongated hole 2e is interposed between the waterproof sheet 3b and the top end of the wooden portion 3a. The rubber sheet 5 is integrally formed by interposing a sheet-shaped core material 5a such as a non-woven fabric, a cloth, or a net between two rubber sheet members. The two sheet members may be members having the same thickness, elasticity, material, etc., or members having different thicknesses, elasticity, materials, and the like. Further, in the present embodiment, the rubber sheets 5 are provided corresponding to the individual 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 half-screw having a cylindrical portion 4c without a thread 4b on the head 4a side. The diameter D of the cylindrical portion 4c is formed to be slightly larger than the width W obtained by adding the height of the thread to the valley diameter of the threaded portion 4d. Further, the length L1 of the columnar portion 4c is formed to be longer than the thickness t1 + t2 + t3 which is the sum of the thickness t1 of the top fixing portion 2a, the thickness t2 of the rubber sheet 5, and the thickness t3 of the waterproof sheet. Therefore, the lower end of the columnar portion 4c of the screw 4 is in a state where the screw 4 penetrates the long hole 2e of the top end fixing portion 2a, the rubber sheet 5, and the waterproof sheet 3b, is screwed into the wooden portion 3a, and is tightened. The portion on the portion side has entered the woody portion 3a. At this time, the peripheral surface of the portion of the columnar portion 4c that penetrates the rubber sheet 5 is pressed toward the shaft side of the columnar portion 4a by the rubber sheet 5.

In the method of attaching the cap tree 1 to which the screwed portion structure of the screw 4 of the present embodiment is applied, the rubber sheet 5 is placed on the top end of the wood portion 3a via the adhesive 6, and the wood portion 3a is made a waterproof sheet together with the rubber sheet 5. Cover with 3b. At this time, the adhesive 6 is also provided between the upper surface of the rubber sheet 5 and the waterproof sheet 3b.

Next, a pilot hole (not shown) corresponding to the outer diameter of the screw is formed so as to penetrate the waterproof sheet 3b and the rubber sheet 5 and reach the xylem portion 3a.

Next, the holder 2 is arranged by aligning the positions of the prepared hole and the long hole 2e, and the screw 4 is inserted into the long hole 2e and the prepared hole from above and screwed into the xylem 3a, and is screwed into the head 4a of the screw 4. The top end fixing portion 2a is pressed toward the wooden portion 3a to fix the holder 2 to the handrail wall 3. At this time, the portion of the screw 4 on the tip end side of the columnar portion 4c enters the woody portion 3a, and the peripheral surface of the columnar portion 4a that penetrates the rubber sheet 5 is pressed toward the shaft side of the columnar portion 4a by the rubber sheet 5. Has been done. Further, the space between the rubber sheet 5 and the waterproof sheet 3b and the space between the rubber sheet 5 and the wood part 3a are both watertight due to the adhesive 6.
Next, the cap tree 1 is covered from above the handrail wall 3 and the holder 2, the cap tree 1 is locked to the holder 2, and the cap tree 1 is attached to the handrail wall 3.

According to the screw screw portion structure of the present embodiment, the rubber sheet 5 interposed between the waterproof sheet 3b covering the wood portion 3a and the wood portion 3a penetrates the cylindrical portion 4c of the screw 4 on the outer periphery. Since it is pressed from the side, even if the screw 4 penetrates the waterproof sheet 3b and the rubber sheet 5 and water enters the rubber sheet 5 side from the screw hole of the waterproof sheet 3b, the rubber sheet 5 causes water to the wood part 3a side. It is possible to prevent the infiltration. Therefore, it is possible to prevent rainwater or the like from entering the woody portion 3a side. Therefore, it is possible to provide a screwed portion structure of the screw 4 having more excellent water stopping property.

Further, the rubber sheet 5 is not between the holder 2 and the head portion 4a of the screw 4 but between the peripheral surface of the cylindrical portion 4c of the screw 4 and the rubber sheet 5 so that rainwater or the like that infiltrates the woody portion 3a side is formed. Since the peripheral surface of 4c is pressed to stop water, it is possible to more reliably prevent rainwater or the like from entering the woody portion 3a side.

Further, the screwed screw 4 has a diameter D slightly larger than the width W obtained by adding the height of the thread to the root diameter of the screw 4, and the columnar portion 4c in which the thread 4b is not provided is a rubber sheet. Since it penetrates the rubber sheet 5, the cylindrical portion 4c penetrates the rubber sheet 5 so as to push the screw hole formed by the screw portion 4d penetrating the rubber sheet 5. Therefore, the cylindrical portion 4c is pressed more strongly from the outer peripheral side by the rubber sheet 5, so that a gap is unlikely to occur. Therefore, it is possible to more reliably prevent rainwater or the like from entering the woody portion 3a side from the head portion 4a side of the screw 4.

Further, since the adhesive 6 is provided between the rubber sheet 5 and the waterproof sheet 3b and between the rubber sheet 5 and the wood portion 3a, the adhesive sheet 6 is provided between the rubber sheet 5 and the waterproof sheet 3b, and the rubber sheet. The space between 5 and the wood part 3a becomes watertight. Therefore, it is possible to prevent rainwater or the like from entering between the rubber sheet 5 and the waterproof sheet 3b and between the rubber sheet 5 and the woody portion 3a, and to provide higher water stopping property.

At this time, the pressure-sensitive adhesive 6 does not necessarily have to be provided on both sides of the rubber sheet 5. For example, if the pressure-sensitive adhesive 6 is provided on at least one side of the rubber sheet 5, the pressure-sensitive adhesive is provided. Since water is stopped between the rubber sheet 5 and the waterproof sheet 3b or between the rubber sheet 5 and the wood portion 3a, it is higher than when the adhesive 6 is not provided on either side of the rubber sheet 5. It is possible to provide water stoppage.

Further, since the rubber sheet 5 having higher elasticity than the waterproof sheet 3b is interposed between the waterproof sheet 3b and the wood portion 3a, the screwed screw 4 is pressed more strongly and the rubber sheet 5 is pressed. It is possible to more reliably prevent the ingress of rainwater or the like from the screw holes of the.

Further, since the core material 5a is provided inside the rubber sheet 5, when the screw 4 is screwed to form a screw hole in the rubber sheet 5, the rubber sheet 5 is torn and propagated. It is possible to prevent it. Therefore, it is possible to more reliably prevent rainwater or the like from entering through the screw holes.

In the above embodiment, an example in which the cylindrical portion 4c of the screw 4 is screwed into the wood portion 3a so as to enter the wood portion 3a has been described, but the present invention is not limited to this, and for example, the cylindrical portion of the screw does not reach the wood portion and is made of rubber. It is also possible that the cylindrical portion that has entered the sheet is pressed by the rubber sheet from the outer peripheral side. Further, the screw does not have a cylindrical portion, and the screw portion penetrating the rubber sheet may be pressed by the rubber sheet from the outer peripheral side.

In the above embodiment, the rubber sheet 5 is used as the interposing member, but the present invention is not limited to this, and the pressing force against the penetrating screw such as a synthetic resin sheet material is higher than that of the waterproof sheet, that is, the tightened screw. Any member may be used as long as it is a member that presses the peripheral surface of the threaded portion of the screw portion toward the shaft side of the threaded portion so that a gap is less likely to occur on the peripheral surface of the penetrating screw portion than the waterproof sheet. At this time, the pressing force may be due to elasticity, or may be in a form in which the pressing force acts on the peripheral surface of the screw that enters because it is thicker than the waterproof sheet, and there is a gap in the peripheral surface of the screw. It does not have to be a rubber sheet as long as it is a member that is unlikely to cause.

In the above embodiment, an example in which the screwed portion structure of the screw of the present invention is applied to the fixing of the holder 2 to the wooden portion 3a of the handrail wall 3 has been described, but the present invention is not limited thereto. That is, the wood 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, while preventing water from entering the member side to which the screw is screwed. It can be applied to any part as long as it is a part where a screw is screwed. For this reason, it can be applied not only when fixing some member but also when the screw is provided with the seat surface of the screw head at a distance from the waterproof sheet, such as for hooking a member such as a spring or wire. Is.

The above 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.

The present embodiment includes at least the following inventions.
It is a screwed portion structure of a screw screwed into a wood part covered with a waterproof sheet, and has an intervening member interposed between the waterproof sheet and the wood part, and the screw is waterproof. The intervening member penetrates the sheet and the interposing member, and the interposing member is a screw screw portion structure characterized in that the penetrating screw is pressed from the outer peripheral side.

According to the screwed portion structure of such a screw, the interstitial member interposed between the waterproof sheet covering the woody portion and the woody portion presses the penetrating screw from the outer peripheral side, so that it is waterproof. Even if the screw penetrates the sheet and the interposing member and water infiltrates into the interposing member side from the screw hole of the waterproof sheet, it is possible to prevent the water from invading the wood portion side by the interposing member. Therefore, it is possible to prevent rainwater or the like from entering the woody portion from the screwed portion of the screw. Therefore, it is possible to provide a screw thread structure having better water stopping property.

In the screwed portion structure of such a screw, the screw is not provided with a thread having a diameter larger than the width obtained by adding the height of the thread to the valley diameter of the screw on the head side. It has a columnar portion, and the columnar portion has entered the intervening member in a screwed state.

According to the threaded portion structure of such a screw, the screwed screw is a columnar portion having a diameter larger than the width obtained by adding the height of the thread to the root diameter of the screw and having no thread. Has entered the intervening member, so that the columnar portion has entered the interposing member so as to push the screw hole formed in the interposing member by the threaded portion of the screwed screw. Therefore, the cylindrical portion is pressed more strongly from the outer peripheral side by the interposing member, so that a gap is unlikely to occur. Therefore, it is possible to more reliably prevent rainwater or the like from entering the woody portion from the screwed portion of the screw.

In the screwed portion structure of the screw, the adhesive is provided at least one of between the interposing member and the waterproof sheet and between the interposing member and the woody portion. It is characterized by.
According to the screwed portion structure of such a screw, since the adhesive is provided at least one of the space between the interposing member and the waterproof sheet and between the interposing member and the wood portion, the interposing member is provided. It becomes watertight between the waterproof sheet or the wood part on the side where the adhesive is provided in the mounting member. For this reason, rainwater or the like does not enter from between the member on the side of the interstitial member where the adhesive is provided, rather than when the interstitial member is simply interspersed between the wood part and the waterproof sheet. It is possible to prevent and provide higher tarpaulin.

The threaded portion structure of the screw is characterized in that the interposing member is a rubber sheet.
According to the screwed portion structure of such a screw, since the interposition member is a rubber sheet, the screwed screw is pressed more strongly to more reliably prevent rainwater or the like from entering through the screw hole of the rubber sheet. Is possible.

It is a screwed portion structure of such a screw, and the rubber sheet is characterized by having a core material inside.
According to such a screw threaded portion structure, since the core material is provided inside the rubber sheet, the rubber sheet is torn when the screw is screwed to form a screw hole in the rubber sheet. It is possible to prevent it from propagating.

Further, the fixing structure of the fixed member is characterized in that the fixed member arranged in contact with the waterproof sheet is sandwiched and fixed between the screw and the screw portion structure of the screw. Is.
According to such a fixing structure of the fixed member, when the fixed member is sandwiched and fixed between the screw and the waterproof sheet, the screw penetrates the waterproof sheet and the interposing member even if the fixed member is sandwiched and fixed. Even if water infiltrates into the interstitial member side from the screw hole of the waterproof sheet, it is possible to prevent water from infiltrating into the woody portion side by the interstitial member. That is, it is possible to prevent water from entering the xylem side of the interposing member that presses the screw from the outer peripheral side.

2 holder, 3a wood part, 3b tarpaulin, 4 screws, 4a head,
4b thread, 4c cylinder, 5 rubber sheet, 5a core, 6 adhesive,
D The diameter of the cylinder, the width of the valley diameter of the W thread plus the height of the thread,

Claims (6)

It is a screwed part structure of a screw that is screwed into a wooden part covered with a waterproof sheet.
It has an interstitial member interposed between the waterproof sheet and the woody part, and has an interstitial member.
The screw penetrates the waterproof sheet and the interposition member, and
The interposition member has a screw screw portion structure, characterized in that the penetrating screw is pressed from the outer peripheral side. The threaded portion structure of the screw according to claim 1.
The screw has a columnar portion on the head side having a diameter larger than the width obtained by adding the height of the thread to the valley diameter of the screw and having no thread.
A screw threaded portion structure, characterized in that the cylindrical portion has entered the intervening member in a screwed state. The threaded portion structure of the screw according to claim 1 or 2.
A screw screw portion structure, characterized in that an adhesive is provided between at least one of the intervening member and the waterproof sheet, and between the interposing member and the woody portion. The screw screw portion structure according to any one of claims 1 to 3.
The interposition member has a screw thread structure, characterized in that it is a rubber sheet. The threaded portion structure of the screw according to claim 4.
The rubber sheet has a screw thread structure having a core material inside. According to the screwed portion structure of the screw according to any one of claims 1 to 5.
A fixing structure of a fixed member, characterized in that a fixed member arranged in contact with the waterproof sheet is sandwiched and fixed between the screw and the fixed member.

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