JP7407660B2 - Structure of the threaded part of the screw and structure of fixing the member to be fixed - Google Patents

Description

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

The structure of the threaded part of the screw threaded into the wooden part covered with a waterproof sheet is, for example, a Kasagi bracket and a Kasagi attached to the upper end surface of a panel that forms the base part of a roof balcony and is covered with a waterproof sheet. A roof balcony handrail mounting structure is known that is screwed from above (see, for example, Patent Document 1). A groove is formed along the length of the cap, and a plurality of screw holes are provided at the bottom of the groove. After the cap is fixed with the screws inserted into the screw holes, the groove is closed by fitting a sealing material.

Japanese Patent Application Publication No. 11-350584

When the Kasagi is fixed as above, the upper part of the Kasagi is covered with sealing material, but since there are holes in the waterproof sheet made by screws, rainwater etc. can seep into the waterproof sheet from either side. However, there is a risk that water may enter the panel side through the holes in the waterproof sheet, and there is a problem that the water sealing performance is low.
The present invention has been made in view of such problems, and its purpose is to provide a screw threading structure 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 part structure of a screw that is screwed into a wooden part covered with a waterproof sheet, the interposition being interposed between the waterproof sheet and the wooden part. A screw thread member, wherein the screw passes through the waterproof sheet and the intervening member, and the intervening member presses the penetrating screw from an outer peripheral side. It has a joint structure.
Other features of the present invention will become apparent from the description of this specification and the accompanying drawings.

According to the present invention, it is possible to provide a screw threading part structure and a fixing structure for a member to be fixed, which are more excellent in water-stopping properties.

FIG. 2 is a perspective view showing a capacitor mounting structure, which is an example of a screw threading structure of the present invention. FIG. 2 is a longitudinal cross-sectional view showing the configuration of a handrail wall to which a capstone is attached. 3 is an enlarged view of section A in FIG. 2. FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a structure of a threaded part of a screw and a structure of fixing a member to be fixed according to an embodiment of the present invention will be described with reference to the drawings.
The screw threading structure of this embodiment will be explained using an example in which it is applied to attaching a holder 2, which is a fixed member that holds a cap 1, to a handrail wall 3, as shown in FIG.
As shown in FIG. 1, the cap 1 is fitted and attached to a holder 2 which is fixed to the wooden part 3a of the handrail wall 3 with screws 4.

The wooden part 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 a surface material 3c is provided on the inner and outer sides of the balcony.
In the following description, the direction along the wall surface of the handrail wall 3 will be described as an in-plane direction, and the direction perpendicular to the wall surface will be described as an out-of-plane direction.

The cap 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. , and a side surface portion 1b that is connected almost vertically from the out-of-plane end of the top surface portion 1a and faces the side surface at the upper part of the handrail wall 3. A locking portion 1c that protrudes inward and is locked to the holder 2 is provided on the inner surface of the side surface portion 1b of the cap 1.

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 the handrail wall 3.

The holder 2 includes a rectangular top fixing part 2a that is screwed to the wooden part 3a, two upwardly extending parts 2b extending upward from both ends of the top fixing part 2a in the out-of-plane direction, and two upwardly extending parts 2b. Horizontal surface portions 2c extend from the upper ends of the two upwardly extending portions 2b in the outward and outward directions of the balcony to form a substantially horizontal surface; It has an extending arm portion 2d that is curved as shown in FIG. The extending arm portion 2d is extended such that its tip is located outside the upper part of the handrail wall 3, and the locking portion 1c of the cap 1 is locked to the tip.

The holder 2 is fixed by screws 4 under the waterproof sheet 3b that covers the top end of the wooden part 3a through a rubber sheet 5 as an intervening member whose pressing force against the circumferential surface of the screws 4 that penetrate is higher than that of the waterproof sheet 3b. ing. Here, the waterproof sheet 3b is in the form of a thin sheet, for example, TYVEK\Tyvek (registered trademark) manufactured by E.I. DuPont de Nemours & Co., and the rubber sheet 5 is thicker than the waterproof sheet 3b. , the circumferential surface of the tightened screw 4 is pressed against 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 end fixing part 2a of the holder 2 is provided with four elongated holes 2e into which screws 4 can be inserted. In this embodiment, the screws 4 are inserted into two of the four elongated holes 2e. The holder 2 is fixed by being inserted. The elongated holes 2e are provided along the out-of-plane direction near the four corners of the top fixing portion 2a, and the screws 4 are inserted through the two elongated holes 2e located diagonally. Here, the hole into which the screw 4 is inserted is not limited to a long hole.

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

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 slightly larger than the width W, which is the sum of the root diameter and the height of the thread in the threaded portion 4d. Moreover, the length L1 of the columnar part 4c is longer than the thickness t1+t2+t3, which is the sum of the thickness t1 of the top end fixing part 2a, the thickness t2 of the rubber sheet 5, and the thickness t3 of the waterproof sheet. Therefore, when the screw 4 passes through the elongated hole 2e of the top end fixing part 2a, the rubber sheet 5, and the waterproof sheet 3b, and is screwed into the wooden part 3a and tightened, the lower end of the cylindrical part 4c of the screw 4 The part on the side has entered the woody part 3a. At this time, the peripheral surface of the portion of the cylindrical portion 4c that passes through the rubber sheet 5 is pressed by the rubber sheet 5 toward the shaft side of the cylindrical portion 4a.

The method of attaching the cap 1 to which the threaded structure of the screw 4 of this embodiment is applied is to place the rubber sheet 5 on the top of the wooden part 3a via the adhesive 6, and cover the wooden part 3a together with the rubber sheet 5 with a waterproof sheet. 3b. At this time, an adhesive 6 is also provided between the upper surface of the rubber sheet 5 and the waterproof sheet 3b.

Next, a prepared hole (not shown) corresponding to the outer diameter of the screw is formed to penetrate through the waterproof sheet 3b and the rubber sheet 5 and reach the wooden part 3a.

Next, arrange the holder 2 by aligning the prepared hole and the elongated hole 2e, insert the screw 4 from above into the elongated hole 2e and the prepared hole, screw it into the wooden part 3a, and insert the screw 4 into the head 4a. The holder 2 is fixed to the handrail wall 3 by pressing the top end fixing part 2a toward the wooden part 3a. At this time, the tip end side of the cylindrical part 4c of the screw 4 enters the wooden part 3a, and the peripheral surface of the part of the cylindrical part 4a penetrating the rubber sheet 5 is pressed against the shaft side of the cylindrical part 4a by the rubber sheet 5. has been done. Furthermore, the adhesive 6 makes the spaces between the rubber sheet 5 and the waterproof sheet 3b and between the rubber sheet 5 and the woody part 3a watertight.
Next, the cap 1 is placed on the handrail wall 3 and the holder 2 from above, the cap 1 is locked to the holder 2, and the cap 1 is attached to the handrail wall 3.

According to the threaded part structure of the screw of this embodiment, the rubber sheet 5 interposed between the waterproof sheet 3b covering the wooden part 3a and the wooden part 3a covers the cylindrical part 4c of the screw 4 passing through the outer periphery. Since the pressure is applied from the side, even if the screws 4 penetrate the waterproof sheet 3b and the rubber sheet 5 and water enters the rubber sheet 5 side from the screw holes in the waterproof sheet 3b, the rubber sheet 5 will prevent the water from flowing into the wooden part 3a side. It is possible to prevent the infiltration of Therefore, it is possible to prevent rainwater and the like from entering into the wooden part 3a side. Therefore, it is possible to provide a structure for the threaded portion of the screw 4 that has better water-stopping properties.

In addition, the rubber sheet 5 prevents rainwater from penetrating into the wooden part 3a from between the holder 2 and the head 4a of the screw 4, but between the circumferential surface of the cylindrical part 4c of the screw 4 and the rubber sheet 5. Since water is stopped by pressing the circumferential surface of 4c, it is possible to more reliably prevent rainwater etc. from entering the wooden part 3a side.

Further, the threaded screw 4 has a diameter D slightly larger than the width W which is the sum of the root diameter of the screw 4 and the height of the thread, and the cylindrical portion 4c where the thread 4b is not provided is covered with a rubber sheet. 5, the cylindrical portion 4c penetrates the rubber sheet 5 so as to expand the screw hole formed by the screw portion 4d that penetrates the rubber sheet 5. Therefore, the cylindrical portion 4c is more strongly pressed from the outer peripheral side by the rubber sheet 5, so that gaps are less likely to occur. Therefore, it is possible to more reliably prevent rainwater or the like from entering from the head 4a side of the screw 4 to the wooden part 3a side.

Moreover, since the adhesive 6 is provided between the rubber sheet 5 and the waterproof sheet 3b and between the rubber sheet 5 and the wooden part 3a, the adhesive 6 is provided between the rubber sheet 5 and the waterproof sheet 3b and between the rubber sheet 5 and the waterproof sheet 3b. 5 and the woody part 3a becomes watertight. Therefore, it is possible to prevent rainwater and the like from entering between the rubber sheet 5 and the waterproof sheet 3b and between the rubber sheet 5 and the wooden part 3a, thereby providing higher water-stopping properties.

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

Moreover, since a rubber sheet 5 having higher elasticity than the waterproof sheet 3b is interposed between the waterproof sheet 3b and the wooden part 3a, the screws 4 screwed together are pressed more strongly, and the rubber sheet 5 It is possible to more reliably prevent rainwater, etc. from entering through the screw holes.

Moreover, since the core material 5a is provided inside the rubber sheet 5, when the screw 4 is screwed together and a screw hole is formed in the rubber sheet 5, the rubber sheet 5 is prevented from tearing and propagating. It is possible to prevent this. Therefore, it is possible to more reliably prevent rainwater and the like from entering through the screw holes.

In the above embodiment, an example has been described in which the cylindrical part 4c of the screw 4 is screwed into the wooden part 3a so as to enter into the wooden part 3a, but the invention is not limited to this. The cylindrical portion entering the seat may be pressed from the outer circumferential side by the rubber sheet. Alternatively, the screw may not have a cylindrical portion, and the screw portion passing through the rubber sheet may be pressed by the rubber sheet from the outer circumferential side.

In the above embodiment, the rubber sheet 5 is used as the intervening member, but it is not limited to this. For example, the intervening member may be made of a synthetic resin sheet material, etc., which has a higher pressing force against the screws passing through the waterproof sheet than the waterproof sheet, that is, the screws that are tightened. Any material may be used as long as it is less likely to cause a gap on the circumferential surface of the screw passing through it by pressing the circumferential surface of the threaded portion toward the shaft side of the threaded portion than the waterproof sheet. At this time, the pressing force may be exerted not only by elasticity but also by the fact that the sheet is thicker than the waterproof sheet, so that the pressing force acts on the circumferential surface of the screw as it enters, and there is no gap between the circumferential surface of the screw. It does not need to be a rubber sheet as long as it is a member that is unlikely to cause this.

In the embodiment described above, an example has been described in which the threaded part structure of the screw of the present invention is applied to fixing the holder 2 to the wooden part 3a of the handrail wall 3, but the invention is not limited to this. In other words, the wooden part to which the screw is screwed is not limited to the handrail wall, and the component to be fixed by the screw is not limited to the holder. It can be applied to any site as long as it is a site where screws are screwed together. Therefore, it can be applied not only to fixing some kind of component, but also to hooking components such as springs and wires, where the screw head is installed with a space between the seat surface of the screw head and the waterproof sheet. It is.

The embodiments described above are provided to facilitate understanding of the present invention, and are not intended to be interpreted as limiting the present invention. It goes without saying that the present invention may be modified and improved without departing from its spirit, and that the present invention includes equivalents thereof.

This embodiment includes at least the following inventions.
A threaded part structure of a screw screwed into a wooden part covered with a waterproof sheet, the screw having an intervening member interposed between the waterproof sheet and the wooden part, and the screw is screwed into the wooden part covered with a waterproof sheet. This screw threading part structure is characterized in that the screw passes through the sheet and the intervening member, and the intervening member presses the passing screw from the outer peripheral side.

According to this structure of the threaded part of the screw, the intervening member interposed between the waterproof sheet covering the wooden part and the wooden part presses the penetrating screw from the outer periphery, so it is waterproof. Even if a screw passes through the sheet and the intervening member and water infiltrates into the intervening member through the screw holes in the waterproof sheet, the intervening member can prevent water from infiltrating into the wooden part. Therefore, it is possible to prevent rainwater and the like from entering into the wooden part from the threaded part of the screw. Therefore, it is possible to provide a screw threaded portion structure with better water-stopping properties.

In the threaded part structure of such a screw, the screw is not provided with a thread on the head side with a diameter larger than the width of the root diameter of the screw plus the height of the thread. It is characterized in that it has a cylindrical part, and the cylindrical part enters the interposed member in a screwed state.

According to such a structure of the threaded part of the screw, the threaded thread has a diameter larger than the width of the root diameter of the thread plus the height of the thread, and has a cylindrical part without a thread. has entered the intervening member, so that the cylindrical portion has entered the intervening member in such a way that the screw hole formed in the intervening member is expanded by the threaded portion of the threaded screw. Therefore, the cylindrical portion is more strongly pressed from the outer circumferential side by the intervening member, so that gaps are less likely to occur. For this reason, it is possible to more reliably prevent rainwater or the like from entering into the wooden part from the threaded portion of the screw.

In such a screw threaded part structure, an adhesive is provided between at least one of the intervening member and the waterproof sheet, and between the intervening member and the wooden part. It is characterized by
According to such a structure of the threaded part of the screw, the adhesive is provided between the intervening member and the waterproof sheet, and between the intervening member and the wooden part, so that the intervening part can be easily removed. In the mounting member, the space between the waterproof sheet or the wooden part on the side where the adhesive is provided becomes watertight. For this reason, compared to a case where the intervening member is simply interposed between the wooden part and the tarpaulin, this prevents rainwater etc. from entering between the intervening member and the member on the side where the adhesive is provided. It is possible to prevent this and provide higher water-stopping properties.

This screw threaded portion structure is characterized in that the interposed member is a rubber sheet.
According to this structure of the threaded part of the screw, since the intervening member is a rubber sheet, the threaded screw can be pressed more strongly to more reliably prevent rainwater etc. from entering through the screw hole of the rubber sheet. is possible.

This screw threading structure is characterized in that the rubber sheet has a core material inside.
According to this structure of the threaded part of the screw, the rubber sheet has a core material inside, so when the screw is threaded together and a screw hole is formed in the rubber sheet, the rubber sheet is not torn. It is possible to prevent it from spreading.

Further, the structure for fixing a member to be fixed is characterized in that the member to be fixed, which is placed in contact with the waterproof sheet, is held and fixed between the screws by the threaded part structure of the screw. It is.
According to such a structure for fixing the member to be fixed, when the member to be fixed is held and fixed between the screw and the waterproof sheet, even if the screw passes through the waterproof sheet and the intervening member, Even if water intrudes into the intervening member through the screw holes of the waterproof sheet, the intervening member can prevent water from infiltrating into the wooden part. That is, it is possible to prevent water from penetrating into the wood part side rather than the intervening member that presses the screw from the outer circumferential side.

2 Holder, 3a Wooden part, 3b Waterproof sheet, 4 Screw, 4a Head,
4b screw thread, 4c cylindrical part, 5 rubber sheet, 5a core material, 6 adhesive,
D: Diameter of the cylindrical part, W: Width of the thread, which is the sum of the root diameter of the thread and the height of the thread.

Claims (5)

A threaded part structure of a screw threaded into a wooden part covered with a waterproof sheet,
an intervening member interposed between the waterproof sheet and the wooden part;
The screw has, on the head side, a cylindrical portion having a diameter larger than the width of the root diameter of the screw plus the height of the thread, and is not provided with a thread. penetrates the intervening member,
In the screwed state, the cylindrical part enters the intervening member and penetrates the threaded hole formed by the threaded part so as to expand it ,
A screw threaded part structure, wherein the intervening member presses the cylindrical part passing through it from the outer peripheral side. The threaded part structure of the screw according to claim 1 ,
A screw threading structure, characterized in that an adhesive is provided between at least one of the intervening member and the waterproof sheet, and between the intervening member and the wooden part. The threaded part structure of the screw according to claim 1 or 2 ,
A screw threading structure, wherein the intervening member is a rubber sheet. The threaded part structure of the screw according to claim 3 ,
A screw threading structure, wherein the rubber sheet has a core material inside. The screw threaded portion structure according to any one of claims 1 to 4 ,
A structure for fixing a member to be fixed, characterized in that the member to be fixed is disposed in contact with the waterproof sheet and is held and fixed between the screws.

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