JP7417479B2 - 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. The screw has an enlarged diameter portion having a diameter larger than the outer diameter of the screw on the head side of the threaded portion where the thread is formed, and a boundary portion between the threaded portion and the enlarged diameter portion. and an intersecting surface that intersects with the axial direction of the threaded portion, and the intersecting surface intersects with the waterproof sheet and the intervening member in a state where the waterproof sheet and the intervening member are screwed together through each other. This is a screw threaded part structure characterized in that the screw is pressed against the wooden part side.
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 A structure of a threaded part of a screw according to an embodiment of the present invention will be described below 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 longitudinal direction of the handrail wall 3, and as shown in FIG. It has a side surface part 1b that is connected almost vertically from the end in the out-of-plane direction 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 a waterproof sheet 3b covering the top end of the wooden part 3a via a rubber sheet 5 as an intervening member. 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. It is pressed and compressed by the tightened screw 4. Further, an adhesive 6 (FIG. 3) is provided between the rubber sheet 5 and the waterproof sheet 3b, and between the rubber sheet 5 and the wooden part 3a.

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. It is inserted and fixed. 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 stepped screw having a cylindrical portion 4c on the head 4a side, which has a diameter D1 larger than the thread outer diameter D2 of the threaded portion 4d and is not provided with a thread 4b. The boundary between the threaded portion 4d and the threaded portion 4d forms an intersecting surface 4e orthogonal to the axial direction of the threaded portion 4d. Here, the cylindrical portion 4c corresponds to the enlarged diameter portion. Further, the outer circumferential surface of the enlarged diameter portion may be provided with irregularities such as threads.

Further, the length L1 of the columnar part 4c is longer than the thickness t1 of the top end fixing part 2a, and 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. It is also formed short. Therefore, when the threaded part 4d is inserted through the elongated hole 2e of the top fixing part 2a, the waterproof sheet 3b, and the rubber sheet 5, and is screwed into the wooden part 3a and tightened, the intersecting surface 4e of the screw 4 is The waterproof sheet 3b is pressed together with the rubber sheet 5 toward the wooden part 3a, and the rubber sheet 5 is compressed. That is, the intersecting surfaces 4e of the screws 4 press the rubber sheet 5 and the waterproof sheet 3b toward the wooden portion 3a. At this time, the waterproof sheet 3b conforms to the shape of the rubber sheet 5 that has been pressed and deformed.

The method of attaching the cap 1 to which the threaded structure of the screw 4 of this embodiment is applied is to first place the rubber sheet 5 on the top of the wooden part 3a via the adhesive 6, and then attach the wooden part 3a together with the rubber sheet 5. Cover 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) is formed in the wooden part 3a, penetrating through the waterproof sheet 3b and the rubber sheet 5, and corresponding to the outer diameter D2 of the screw.

Next, arrange the holder 2 by aligning the prepared hole with the elongated hole 2e, insert the screw 4 into the elongated hole 2e and the prepared hole from above, screw it into the wooden part 3a, and attach the holder 2 to the handrail wall 3. Fixed to. At this time, both the space between the rubber sheet 5 and the waterproof sheet 3b and the space between the rubber sheet 5 and the woody part 3a are made watertight by the adhesive 6.
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 threaded screw 4 has an intersecting surface 4e that forms the boundary between the cylindrical part 4c and the threaded part 4d, which have a diameter D1 larger than the screw outer diameter D2. Since the rubber sheet 5 is pressed and compressed together with the waterproof sheet 3b toward the wooden part 3a, the screws 4 can be screwed together and the screw holes formed in the waterproof sheet 3b and the rubber sheet 5 can be closed by the intersecting surface 4e. be.

In addition, since the intersecting surface 4e presses and compresses the rubber sheet 5 together with the waterproof sheet 3b toward the wooden part 3a, water is also stopped between the waterproof sheet 3b and the rubber sheet 5, and between the rubber sheet 5 and the wooden part 3a. Ru. Therefore, it is possible to prevent rainwater or the like from entering from the head side of the screw 4 to 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.

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.

Further, since the adhesive 6 is provided between the rubber sheet 5 and the waterproof sheet 3b, even if the screw 4 is tightened while the waterproof sheet 3b is pressed against the intersecting surface 4e, the waterproof sheet 3b will not be twisted. The intersecting surface 4e presses against the waterproof sheet 3b which remains flat. Therefore, a gap is unlikely to be formed between the intersecting surface 4e and the waterproof sheet 3b, so that higher water-stopping performance can be ensured.

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 6 is not necessarily provided on both sides of the rubber sheet 5. Water is stopped between the rubber sheet 5 and the waterproof sheet 3b or between the rubber sheet 5 and the wooden part 3a, which is lower than when the adhesive 6 is not provided on either side of the rubber sheet 5. It is possible to provide high water-stopping properties.

Furthermore, 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 rubber sheet 5 is compressed and deformed by the tightened screws 4. However, since the waterproof sheet 3b located between the intersecting surface 4e of the screw 4 and the rubber sheet 5 runs along the deformed rubber sheet 5, it has higher water-stopping properties between the intersecting surface 4e and the rubber sheet 5. Is possible.

Moreover, since the compressed rubber sheet 5 strongly presses the wooden part 3a, it is possible to provide higher water-stopping properties between the rubber sheet 5 and the wooden part 3a. Therefore, it is possible to more reliably prevent rainwater and the like from entering through the screw holes formed in the waterproof sheet 3b and the rubber sheet 5.

Furthermore, since the rubber sheet 5 has a core material 5a inside, 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.

Furthermore, due to the above-described threaded structure of the screws 4, when the holder 2 is clamped and fixed between the screws 4 and the waterproof sheet 3b, even if water leaks from between the holder 2 and the waterproof sheet 3b. Even if the water enters the threaded part, the intersecting surface 4e of the screw 4 presses and compresses the rubber sheet 5 together with the waterproof sheet 3b toward the woody part 3a, so water does not enter the woody part 3a where the screw 4 is threaded. It is possible to prevent the infiltration of That is, it is possible to prevent water from entering into the wooden part 3a side of the waterproof sheet 3b pressed by the intersecting surfaces 4e of the screws 4.

In the above embodiment, the rubber sheet 5 is used as the intervening member, but the intervening member is not limited to this. For example, the intervening member may be made of a synthetic resin sheet material, etc., which is more easily compressed than the waterproof sheet 3b by the intersecting surface 4e of the tightened screws. It does not matter if it is a member.

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 threaded into a wooden part covered with a waterproof sheet, the screw having an intervening member interposed between the waterproof sheet and the wooden part, the screw having a threaded part. an enlarged diameter part having a diameter larger than the outer diameter of the thread on the head side of the threaded part, and an intersection that intersects with the axial direction of the threaded part at the boundary between the threaded part and the enlarged diameter part. The intersecting surface presses the waterproof sheet and the intervening member toward the wooden part in a state where the waterproof sheet and the intervening member are screwed together through the waterproof sheet and the intervening member. This is the characteristic threaded structure of the screw.

According to this structure of the threaded part of the screw, the intersecting surface forming the boundary between the expanded diameter part and the threaded part, which has a larger diameter than the outer diameter of the screw, is attached to the intervening member together with the waterproof sheet. Since the screws are pressed against the wooden part side, the screws can be screwed together and the screw holes formed in the waterproof sheet and the intervening member can be closed at the intersecting surfaces. Further, since the intersecting surface presses the intervening member together with the waterproof sheet toward the wooden part, water is also stopped between the waterproof sheet and the intervening member and between the intervening member and the wooden part. Therefore, it is possible to prevent rainwater and the like from entering from the head side of the screw into the woody part side. Therefore, it is possible to provide a screw threaded portion structure with better water-stopping properties.

This screw threading structure is characterized in that the intervening member is provided with an adhesive between at least one of the waterproof sheet and the wooden part. .
According to this structure of the threaded part of the screw, since the adhesive is provided between the intervening member and the waterproof sheet and at least one between the intervening member and the wooden part, the intervening 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.

In addition, since the adhesive is provided between the intervening member and the waterproof sheet, even if the screws are tightened while the waterproof sheet is pressed against the intersecting surface, the waterproof sheet is difficult to twist, so the intersecting surface is , press the tarpaulin while it remains flat. Therefore, it is difficult to form a gap between the crossing surface and the waterproof sheet, so it is possible to ensure higher water-stopping properties.

At this time, if adhesive is provided on either side of the intervening member, water will be stopped between the intervening member and the waterproof sheet and between the intervening member and the wooden part. Therefore, it is possible to provide even 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 rubber sheet is compressed and deformed by the intersecting surfaces of the tightened screws, and the intersecting surface of the screws is compressed and deformed. Since the waterproof sheet is placed along the deformed rubber sheet, it is possible to provide higher water-stopping properties between the intersection surface and the rubber sheet. Moreover, since the compressed rubber sheet presses the wood part more strongly, it is possible to provide higher water-stopping properties between the rubber sheet and the wood part. Therefore, it is possible to more reliably prevent rainwater and the like from entering from the waterproof sheet side to the wooden part side.

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 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 fixing structure of the fixed member, when the fixed member is held and fixed between the screw and the waterproof sheet, even if water leaks from between the fixed member and the waterproof sheet, the screw Even if water intrudes into the threaded part, the intersecting surface of the screw presses the intervening member together with the waterproof sheet against the wooden part, so it is possible to prevent water from entering the wooden part to which the screw is threaded. It is possible. That is, it is possible to prevent water from penetrating into the wood part side of the waterproof sheet pressed by the intersecting surfaces of the screws.

2 Holder, 3a Wooden part, 3b Waterproof sheet, 4 Screw, 4a Head,
4b thread, 4c cylindrical part, 4d threaded part, 4e intersecting surface, 5 rubber sheet,
5a core material, 6 adhesive,
D1 Diameter of cylindrical part, D2 Outer diameter of screw,

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 includes a head , a threaded portion on which a thread is formed , an enlarged diameter portion having a diameter larger than an outer diameter of the screw on the head side of the threaded portion, and the threaded portion and the enlarged diameter. and an intersecting surface that intersects with the axial direction of the threaded part at the boundary with the threaded part, and is formed of a single member ;
A threaded screw connection characterized in that the intersecting surface presses the waterproof sheet and the intervening member toward the wooden portion in a state where the waterproof sheet and the intervening member are screwed together through the intervening member. Department structure.
The threaded part structure of the screw according to claim 1,
The screw threading structure is characterized in that the intervening member is provided with an adhesive at least one of between the waterproof sheet 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. With 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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