JP3291162B2 - Eave fittings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eaves gutter joint for connecting square eaves gutters, and more particularly to an eaves gutter joint capable of absorbing longitudinal expansion and contraction of an eaves gutter.

[0002]

2. Description of the Related Art In a conventional eaves gutter joint of this type, as shown in FIGS. 14 and 15, a bellows-like shape which can be extended and contracted between a pair of joint pieces 1 'along the outer surface of a rectangular eave gutter. Telescopic connecting band 2 '
To form a joint body 3 ', and a protrusion a protruding in the longitudinal direction of the eaves gutter is provided integrally on the inner peripheral side of the joint piece 1', and between the joint piece 1 'and the protrusion a. Forming an insertion gap b,
A decorative cover 4 'is fitted along the outer periphery of the joint body 3', and one joint piece 1 'of the joint body 3' is fitted to the decorative cover 4 '.
The decorative cover 4 'is formed by providing ear fitting portions 5a' and 5b 'on the upper ends of both ends.
Such an eaves gutter joint is formed by inserting the end of the eaves gutter into the insertion gap b of the joint body 3 'and joining with an adhesive, and fitting the ears of the eaves gutter to the ear fitting portions 5a' and 5b '. An eaves gutter is connected. Even if the eaves gutter expands and contracts in the longitudinal direction of the eaves gutter, the expansion and contraction of the eaves gutter is absorbed by sliding the joint piece 1 ′ that is not adhered via the elastic connecting band 2 ′ to the decorative cover 4 ′. Is done.

[0003]

In the case of the above eaves gutter joint, a pair of joint pieces 1 'of the joint body 3' are formed by injection molding of synthetic resin. Since it is formed by extrusion molding of a soft synthetic resin or the like, it has an elongated flat plate shape. And the joint piece 1 'and the telescopic connecting band 2'
When the two are joined together to assemble them together, the telescopic connecting band 2 'is bent into the same shape as the joint piece 1', and the side end of the joint piece 1 'and the side end of the telescopic connecting band 2' are bonded. However, when the flat elastic connecting band 2 'is bent along the shape of the joint piece 1', the elastic connecting band 2 'must be sharply bent at a position corresponding to the lower corner. The outer periphery is strongly pulled and the inner periphery is in a compressed state, and it is difficult for this portion to expand and contract in the longitudinal direction of the eaves gutter, which causes a problem that expansion and contraction of the eaves gutter cannot be smoothly absorbed. Further, in the case of the eaves gutter joint having the above-described structure, it is necessary to prepare a pair of joint pieces 1 ′ having different shapes, and thus there is a problem that the number of types of parts is increased, productivity is reduced, and cost is increased. is there.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a bellows-like expansion / contraction connecting band which can smoothly expand and contract in the longitudinal direction of the gutter at any part. An object of the present invention is to provide an eaves gutter joint that can smoothly absorb the expansion and contraction of the eave.

[0005]

In order to achieve the above object, the eaves gutter joint of the present invention connects a pair of joint pieces 1 along the outer surface of a rectangular eaves gutter 6 with a bellows-shaped expansion / contraction connection band 2. And a decorative cover 4 along the outer surface of the joint body 3 is fitted on the outer surface of the joint body 3 and at least one of the joint pieces 1 and the decorative cover 4 slides in the longitudinal direction of the eaves gutter 6. in eaves gutter joint fitted with a decorative cover 4 to the outer surface of the joint body 3 so as to freely the bellows-like stretchable connection band 2 substantially the same as a shape that along the outer surface of the eaves gutter 6 and the shape of the joint piece 1 In addition, the upper end surfaces 20 at both ends of the elastic connecting band 2
Formed by injection molding into a shape comprising a planar, decorative cover 4
The above-mentioned expansion and contraction in the ear cover parts 8a and 8b provided at the upper part of both ends
It is characterized in that the upper end surfaces 20 at both ends of the connecting band 2 are located .

Further, a concave step 16 is provided in the circumferential direction of both side edges of the eaves gutter 6 of the joint piece 1 in the longitudinal direction, and one concave step 16 is provided.
It is also preferable that the side edges of the expansion and contraction connection band 2 are integrally connected to each other, and a seal packing 17 is attached to the other concave step portion 16 .

[0007]

According to the above construction, the bellows-like expansion / contraction connection band 2 is formed by injection molding so as to follow the outer surface of the eaves gutter 6 in substantially the same shape as the joint piece 1. A portion corresponding to the outer shape is formed, and there is no portion that is suddenly bent later as in the case of bending a flat plate as in the conventional case, and the elastic connecting band 2 smoothly expands and contracts in the longitudinal direction of the eaves gutter 6 at any portion. The expansion and contraction of the eaves gutter 6 can be smoothly absorbed. Also,
A shape in which the upper end surfaces 20 at both ends of the elastic connecting band 2 are planar.
Ear cover formed on both ends of the decorative cover 4
Upper end faces at both ends of the elastic connecting band 2 in the portions 8a and 8b
Since 20 is located, it becomes a bellows-like elastic connecting band 2
A gap into which rain during rainfall enters from above with the cosmetic cover 4
Can leak and leak from the eaves gutter joint
Disappears.

[0008] The recessed step 16 provided in the circumferential direction of both sides in the longitudinal direction of the side edge of the eaves gutter 6 of the joint piece 1, one of the recessed step 16
When the side edges of the elastic connecting band 2 are integrally connected to each other and the seal packing 17 is attached to the other concave step portion 16, the shape of the pair of joint pieces 1 can be made the same, and the pair of joint pieces 1
Therefore, the same members can be used, the types of parts can be reduced, the productivity can be improved, and the cost can be reduced. In addition, the side ends of the elastic connecting band 2 and the seal packing 17 can be easily joined by using the concave step portion 16.

[0009]

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1, 2 and 3, the eaves gutter joint is mainly composed of a joint body 3, a decorative cover 4 and an eaves gutter retainer 14. FIG. The joint main body 3 is formed of a pair of joint pieces 1 and a bellows-shaped expansion / contraction connection band 2, and extends between the pair of joint pieces 1 arranged at intervals over substantially the entire length by the expansion / contraction connection band 2. Connected. As shown in FIG. 4, the joint piece 1 is formed of a synthetic resin such as vinyl chloride or acrylic resin along the outer surface of the rectangular eaves gutter 6. A substantially U-shaped ear fitting portion 5a, 5b that can be fitted on the outer surface side of the ear portion 7a, 7b is provided. A concave step 16 is provided on both sides of the inner periphery of the joint piece 1 so as to extend over substantially the entire length, and a side end of the elastic connecting band 2 is fitted into one concave step 16 and integrally joined, A seal packing 17 is fitted into the other concave step 16 and joined with an adhesive or the like. Telescopic connecting band 2
The seal packing 17 is formed of a soft synthetic resin such as soft vinyl chloride or an elastic material such as rubber. Joint piece 1
On the upper surfaces of the ear fitting portions 5a and 5b, a stepped locked portion 10 is provided.
Are provided in the width direction, and a columnar engaging projection 11 is protrudingly provided on the upper surfaces of the ear fitting portions 5a and 5b near the locked portion 10. A locking projection 18 protruding downward is hung from the tip of the upper surface piece of each of the ear fitting portions 5a and 5b.

[0011] The joint piece 1, the decorative cover 4, the eaves gutter retainer 14
Is formed by injection molding of a synthetic resin. In the case of the present invention, the elastic connecting band 2 is also formed into a shape along the shape of the eaves gutter 6 by injection molding an elastic material such as a soft synthetic resin or rubber. Formed. In the case of the present embodiment, after the joint piece 1 is formed by injection molding in advance, the elastic connecting band 2 is formed by injection molding the elastic connecting band 2 and the elastic connecting band 2 and the joint piece 1 are formed.
Are integrated. A cavity 24 having the same shape as the joint body 3 is provided between the upper mold 22 and the lower mold 23, and a pair of joint pieces 1 are set at predetermined positions of the lower mold 23 as shown in FIG. Then, the upper mold 22 and the lower mold 23 are clamped, and the elastic material is injected from the sprue 25 into the remaining part of the cavity 24, thereby forming the bellows-like elastic connecting band 2 and the elastic connecting band. 2 is integrated with the joint piece 1.
At this time, the connecting portions 26 on both sides of the elastic connecting band 2 are integrally joined to one concave step 16 of the joint piece 1 to form the joint main body 3 as shown in FIGS. 6 to 8. In addition, by forming the expansion / contraction band 2 by injection molding in this way, the joint body 3 is formed.
Can be formed at the corners of the elastic connecting band 2 at the lower corners of the elastic connecting band 2 which bends at a gentler radius than the corners of the joint piece 1 and the connecting portion 26.

As shown in FIG. 5, the decorative cover 4 is formed of a synthetic resin such as vinyl chloride or acrylic resin in a shape following the shape of the outer surface of the joint piece 1 of the joint body 3. At the upper part, ear covers 8a, 8b are provided along the outer surfaces of the ear fittings 5a, 5b. Hook-shaped locking portions 9 are provided at the tips of the upper surface pieces of the ear cover portions 8a and 8b over the entire length in the width direction. Also, the ear cover 8a,
The upper surface piece of 8b is provided with an engagement hole 12 and a slide engagement long hole 13. The eaves gutter retainer 14 is formed of a synthetic resin such as vinyl chloride or acrylic resin in a shape along the inner surface of the eaves gutter 6.
Are provided integrally.

As shown in FIGS. 10 and 11, the joint body 3 is disposed on the inner periphery of the decorative cover 4, so that the inner surface of the decorative cover 4 and the outer surface of the joint piece 1 are in close contact with each other and the ear cover 8
The ear fitting portions 5a and 5b are fitted into the a and 8b. When the ear fitting portions 5a, 5b are fitted into the ear cover portions 8a, 8b, the locking portions 9 of the ear cover portions 8a, 8b are engaged with the ear fitting portions 5a, 5b.
As shown in FIG. 12, the engagement protrusions 11 of the ear fitting portions 5a, 5b of one joint piece 1
Are engaged with the engagement holes 12 of the ear cover portions 8a, 8b, and the engagement protrusions 11 of the ear engagement portions 5a, 5b of the other joint piece 1 are further engaged.
Are slidably engaged with the slide engagement slots 13 of the ear covers 8a and 8b. By engaging the engagement projection 11 with the engagement hole 12, one joint piece 1 is fixed so as not to slide with respect to the decorative cover 4, and the engagement projection 11 engages with the slide engagement long hole 13. This causes the other joint piece 1 to slide. At this time, the engagement protrusion 11 is guided by the slide engagement long hole 13 and slides smoothly.

The connection of the pair of eaves gutters 6 using the eaves gutter joint constructed as described above is performed as follows. The outer surface of the end of the eaves gutter 6 extends along the inner surface of each joint piece 1, and the ears 7a and 7b of the eaves gutter 6 are fitted into the ear fitting portions 5a and 5b. Eaves gutter retainer 14 along the inner surface
And the upper ends of both ends of the eave gutter retainer 14
And attach the eave gutter retainer 14. In the case of this embodiment, by attaching the eaves gutter retainer 14, the end of the eaves gutter 6 can be sandwiched between the eaves gutter retainer 14 and the joint piece 1, and the outer surface of the eaves gutter 6 can be brought into close contact with the seal packing 17, and the adhesive can be used. And can be connected in a waterproof manner. Also eaves gutter 6
When the eaves gutter 6 is connected, the eaves gutter 6 is connected to the joint body 3 with the decorative cover 4 removed, and the eaves gutter 6 is connected later. The decorative cover 4 may be fitted on the outer surface and attached. When the eaves gutter 6 is connected by the eaves gutter joint as described above, even if the eaves gutter 6 expands and contracts in the longitudinal direction, the expansion and contraction connecting band 2 expands and contracts, and the joint piece 1
Between the eaves gutter 6 and the decorative cover 4 in the longitudinal direction.
Can absorb expansion and contraction. Further, in the case of the present invention, since the bellows-like elastic connecting band 2 is formed by injection molding, the elastic connecting band 2 smoothly expands and contracts even at the lower corner portion, and the eaves gutter 6 is formed.
Can be reliably absorbed. Furthermore, in the case of the present invention, since the circular arc portion 27 is provided at the lower corner of the elastic connecting band 2, when the elastic connecting band 2 expands and contracts, the elastic connecting band 2 smoothly contacts without contacting the inner surface of the decorative cover 4. Expand and contract. Also, the end surfaces 20 at both ends of the upper part of the elastic connecting band 2 become vertical surfaces,
As shown in FIG. 13B, the ear cover 8 of the decorative cover 4
Since it is located on the outer surface side from the tips of the upper pieces a and 8b, as shown in FIG. 13 (a), the raindrops 28 of rainwater infiltrate from the upper part between the telescopic connecting band 2 and the decorative cover 4 as shown in FIG. There is no danger of rain leaking from the lower part of the decorative cover 4.

[0015]

According to the first aspect of the present invention, since the bellows-like expansion / contraction connection band is formed by injection molding so as to follow the outer surface of the eave gutter substantially in the same manner as the shape of the joint piece. The shape according to the outer shape of the eaves gutter is formed, and there is no part that suddenly bends later like bending a flat plate as in the past, and any stretchable connecting band can be smoothly in the longitudinal direction of the eaves gutter at any part. It expands and contracts and can smoothly absorb the expansion and contraction of the eaves gutter. In addition, the upper end surfaces of both ends of the elastic connection band are made planar.
Ear covers provided at the top of both ends of the decorative cover
Position the upper end faces of both ends of the elastic connection band in the bar
Between the bellows-like elastic connecting band and the decorative cover
There is no gap between the top and the bottom during rainfall
And there is no danger of rain leaking from the eaves gutter.
is there.

In the invention of claim 2 of the present invention,
A concave step is provided in the circumferential direction of both side edges in the longitudinal direction of the eaves gutter of the joint piece, and the side edge of the expansion connection band is integrally connected to one concave step and sealed to the other concave step. Since the packing is installed, the shape of the pair of joint pieces can be made the same, the same member can be used for the pair of joint pieces, the number of parts can be reduced, productivity can be improved, and cost can be reduced. In addition, the side ends of the elastic connecting band and the seal packing can be easily joined using the concave step.

[0017]

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a state where an eaves gutter is connected by an eaves gutter joint of the present invention.

FIG. 2 is an exploded perspective view of the eaves gutter joint according to the first embodiment.

FIG. 3 is a partially cutaway front view showing a state where the eaves gutter is connected by the eaves gutter joint of the above.

4A and 4B show a joint piece of the above, wherein FIG. 4A is a plan view and FIG.
Is a front view, and (c) is a partially cutaway side view.

FIG. 5 shows the decorative cover according to the embodiment, (a) is a plan view,
(B) is a front view.

FIG. 6 is a front view of the joint body according to the first embodiment.

FIG. 7 is a sectional view taken along line AA of FIG. 6;

FIG. 8 is a sectional view taken along the line BB of FIG. 7;

FIG. 9A is a cross-sectional view as viewed from the front, illustrating a state in which the stretchable connecting band is formed, and FIG. 9B is a cross-sectional view as viewed from the side of FIG. 9A.

FIG. 10 is a front view showing a state where a decorative cover is attached to the joint main body according to the third embodiment.

FIG. 11 is a sectional view taken along line CC of FIG. 10;

FIG. 12 is a sectional view taken along line DD of FIG. 10;

FIG. 13A is a perspective view illustrating a state at the time of rainfall,
(B) is a top view explaining the position of the end face of a telescopic connection band.

FIG. 14 is a front view of a conventional eaves gutter joint.

FIG. 15 is a cross-sectional view as viewed from the side of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint piece 2 Telescopic connection band 3 Joint main body 4 Decorative cover 5a, 5b Ear fitting part 6 House gutter 14 House gutter holder 15 Inclined surface 17 Seal packing 20 End face

Claims (2)

(57) [Claims] 1. A joint body is formed by connecting a pair of joint pieces along an outer surface of a rectangular eaves gutter with a bellows-like expansion / contraction connection band, and a decorative cover along an outer surface of the joint body is attached to an outer surface of the joint body. In an eaves gutter joint having a decorative cover attached to the outer surface of the joint body such that at least one of the joint pieces and the decorative cover are slidable in the longitudinal direction of the eaves gutter, a bellows-shaped expansion / contraction connection band is fitted to the fitting piece. It has a shape along the outer surface of the eaves gutter almost in the same shape as the shape of the joint piece , and both ends of the above-mentioned expansion joint
The upper end face of the is formed by injection molding into a planar shape ,
Insert the extension into the ear cover provided at the top of both ends of the decorative cover.
An eaves gutter joint , wherein upper end surfaces of both ends of the compression connection band are located . 2. A concave step is provided in the circumferential direction of the side edges on both sides in the longitudinal direction of the eaves gutter of the joint piece, and the side edges of the elastic connecting band are integrally connected to one concave step and the other is connected. NokitoiTsugi hand according to claim 1, characterized in that it comprises a sealing gasket attached to the recessed step.