JP2005146637A - Elbow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elbow connecting a rainwater drain pipe and a leader capable of watertightly connecting to the drain pipe while flexibly coping with large and small oblique angle of the drain pipe and making the external appearance fine and elegant. <P>SOLUTION: The elbow is constituted of a cylindrical main body (1) and an integral with the main body (1) protruded to the side of the main body (1) or separate therefrom, the inside diameter of the joint (2L) is made larger than the drain pipe socket(23) opening diameter and a flushing piece (25) proptruding to the main body part is provided in the inside face of the lower side of the pipe socket (23). The main body (1) is fitted to the leader (G). The end of the drain pipe (D) protruded from the external wall (W) of the building is fitted in the drain pipe socket (23) of the joint (2L) to connect the drain pipe (D) and the leader (G). The main body is constituted so that the drain pipe (D) is connected to the leader (G). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a structure of a call that connects a rainwater drain pipe connected to a roof drain of a land roof or a balcony and a fence.

  In order to drain rain that has fallen on the balcony, a roof drain is provided on the upper surface of the balcony, a drain pipe is connected to the drain outlet, and an end of the drain pipe is pulled out from the outer wall of the building and connected to a gutter. Conventionally, as shown in FIG. 4, for example, as shown in FIG. 4, the drain pipe D and the gutter G are connected by using an elbow-type pipe joint 4 </ b> A or a water collecting gutter 4 </ b> B as shown in FIG. 4. (For example, refer to Patent Document 1).

Japanese Utility Model Publication No.6-222026

The drainage pipe D is attached by being inclined downward toward the end of the building that protrudes from the balcony side to the outside of the building. However, the inclination angle is not constant, and is actually different depending on the construction site.
Therefore, in the elbow-type pipe joint 4A shown in FIG. 4 (A), when the both receiving ports 4A1, 4A2 of the pipe joint 4A are inserted into the drain pipe D and the end of the gutter G, they must be pushed in forcefully. The pipe joint 4A may be bent and connected to the drainage pipes D and G due to stress applied to the connecting portion when pushed in, and the appearance of the outer wall surface may be deteriorated. When the inclination angle of the drainage pipe D is large, it may be necessary to cut the receiving port 4A1 of the pipe joint 4A at the enforcement site, or to fill the gap formed in the joining portion with a filler. Further, it is necessary to prepare a plurality of pipe joints 4A having different lengths of the receiving port 4A1 in correspondence with the length of the interval between the outer wall W and the flange G.
In the water collecting basin 4B shown in FIG. 5B, since the periphery of the end of the drainage pipe D is covered widely, there is no problem in mounting due to the inclination of the drainage pipe D, but the outer wall surface of the building in this case is The large catchment 4B sits on the top of the kite G, and the catchment 4B becomes a noticeable appearance. The water collecting basin 4B cannot be used when it is desired to keep the connecting portion between the drain pipe D and the ridge G thin and clear due to the design requirements of the outer wall of the building.

  In view of the above-described problems of the prior art, the present invention provides a sewage pipe that connects the rainwater drainage pipe and the dredging, and the drainage pipe and the trough are connected in a watertight manner in a flexible manner corresponding to the inclination angle of the drainage pipe. At the same time, it is an object of the present invention to make the appearance of the connecting portion thin and clean.

  In order to solve the above-mentioned problem, the call of the present invention has a cylindrical main body part and a cylindrical joint part protruding to the side of the main body part, the main body part is attached to the scissors, and the end face of the joint part An end of a drain pipe projecting from the outer wall of the building is fitted into a drain pipe receptacle formed on the drain pipe, and the drain pipe and the trough are connected to each other. The water outlet is provided larger than the opening diameter of the receiving port, and a water return piece protruding toward the main body is provided on the lower inner surface of the drain pipe receiving port.

  According to this, the inner side of the joint part of the call having a drain pipe receptacle formed at the tip is a hollow part having a larger diameter than the outer diameter of the drain pipe. Therefore, when the end of the drain pipe is fitted into the drain pipe receptacle, a gap is formed between the outer peripheral surface of the drain pipe and the inner peripheral face of the joint, and the inclination angle at which the drain pipe peripheral face collides with the inner peripheral face of the joint. The end portion of the drain pipe that is appropriately inclined to the range can be connected to the joint portion without applying stress to the connecting portion. In addition, since a water return piece is provided at the bottom of the drain pipe receptacle, the rainwater that has flowed into the tub from the drain pipe does not flow back to the tip of the joint, and the junction between the drain pipe receptacle and the drain pipe It can prevent flowing out from the outside.

  The said structure WHEREIN: It can comprise so that a main-body part and a joint part can be provided separately, and the joint part of the width | variety according to the installation space | interval of a building outer wall and a fence can be selected and attached to a main-body part. That is, at least two joint parts are prepared, although the cylinder length is large and small, and a large joint part is provided when the space between the building outer wall and the fence is large, and a small joint part is provided when the gap is small. If it is attached to the drainage pipe, it will be possible to connect the drainage pipe and the dredging corresponding to various buildings with long and short intervals. In this case, the main body can be shared, and a plurality of types of joints having different widths may be formed.

In the above configuration, in order to make it easier for rainwater flowing from the drainage pipe to flow into the callout, the joint portion is inclined upward from the original end portion connected to the main body portion to the tip end portion where the drainage pipe is fitted. It is preferable.
Also, if the body part is formed in the same cross-sectional shape as the heel, and connecting portions with the heel end parts are provided on both the upper and lower parts, The integrated and clean appearance shape makes the connecting part with the drain pipe inconspicuous.
When a kite is connected to the upper part of the main body, rainwater flows down into the main body along the upper kite. In this case, in order to prevent rainwater from entering the drain pipe, it is preferable to provide a rectifying piece having an appropriate width depending on the upper edge of the opening surface in the side opening surface of the main body.

A preferred embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an external perspective view of a constituent member of a call according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the state in which the components are separated, and FIG. It is sectional drawing of a state.

  As shown in the drawing, this call is composed of a main body 1, joint portions 2 </ b> L and 2 </ b> S having different widths from the main body 1, and a lid 3.

The main body portion 1 has a cylindrical shape having a body portion 11 having a cross-sectional shape substantially the same as that of the rectangular square ridge G to be connected, and the upper portion 12 is sized so that the outer periphery of the end portion of the ridge G is fitted inside. The lower part 13 is provided with a skirt part to which the inner periphery of the end of the collar G is fitted, and the oval projecting ring 14 to which the joint parts 2L and 2S are connected is provided on the side part.
The projecting ring 14 is inclined upward and protrudes from the body 11, and the inside of the main body 1 and the opening surface of the projecting ring 14 are communicated with each other through an opening 15 formed in the body 11. Further, the upper portion of the opening 15 is edged in an inverted U shape by a rectifying piece 16 that hangs down from the base portion of the protruding ring 14 along the trunk portion 11, that is, the opening 15 is smaller than the opening surface of the protruding ring 14. It is formed in an oval shape.
Further, the opposing wall surface of the upper part 12 of the main body part 1 is provided with a locking hole 17 for fixing the lid part 3 and supports the end parts of the collar G fitted into the upper opening at the four corners of the inner peripheral surface. Ribs 18 are provided.

  Each of the joint portions 2L and 2S has a cylindrical shape having an oval cross section substantially the same as that of the projecting ring 14, opens so that the original end portion 21 can be externally fitted to the projecting ring 14, and the end surface of the distal end portion 22 A circular drainage pipe receiving opening 23 into which the drainage pipe D is fitted almost completely is provided. The drain pipe receiving port 23 has a peripheral edge inclined inward by a taper surface, and a center thereof is provided at a position deviated upward from the center of the end face of the tip portion defined in an oval shape. Further, a flange 24 projecting outward is provided on the peripheral surface of the tip 22, and protrudes in a substantially U shape with an appropriate width toward the original end 21 on the lower inner surface of the drain pipe receiving port 23. The water return piece 25 is provided.

  The lid portion 3 has a rectangular shape that covers the upper surface portion 12 of the main body portion 1, and an upper step portion 33 that fits into the upper surface portion 12 and a lower portion of the top surface 31 that has a through hole 32 in the center. A lower step portion 34 that fits inside the end portion is integrally formed. A protrusion 35 that engages with the locking hole 17 of the main body 1 is provided on the opposing outer surface of the upper step 33. In order to suppress the falling sound of rainwater dripping from the through holes 32, the through holes 32 may be provided at the corners of the top surface 31 so that the rainwater travels along the gutter G and the inner surface of the main body 1.

  As shown in FIG. 3, the call formed in this way is configured by integrally connecting the joint 2 </ b> L to the projecting ring 14 of the main body 1, and fitting the drainage pipe D into the drainage pipe opening 23. The upper heel G is fitted to the lower portion 13 of the main body 1 and the upper ridge G is fitted to the upper portion 12 of the main body 1 as required, for example, to improve the appearance of the outer wall surface. The lid 3 is fitted into the upper end of the heel G to connect the drain pipe D and the heel G. The connecting portions between the members are integrally fixed by an adhesive.

At this time, since the inner diameter of the joint portion 2L is larger than the opening diameter of the water pipe receiving port 23 and the inside of the joint portion 2L is a wide cavity, the drain pipe D having a large inclination as shown by the broken line in FIG. , Can be connected without stress.
Further, the water return piece 25 provided in the joint portion 2L prevents rainwater flowing from the drainage pipe D into the pallet from flowing backward to the distal end side of the joint portion 2L. The rectifying piece 16 provided in the surface prevents rainwater dripping along the upper gutter G and the inner peripheral surface of the main body 1 from flowing into the drain pipe D. Further, the joint flange 2 </ b> L is joined to the building outer wall W to prevent rainwater falling on the upper surface of the joint 2 </ b> L from being transmitted to the outer wall W.
In addition, when the space | interval of the building outer wall W and the eaves G is small, it replaces with the joint part 2L, the short joint part 2S is attached, and when the upper eaves G are not attached, The lid 3 is attached to the upper part 11.

  In the illustrated embodiment, the main body portion and the joint portion are provided separately, but they may be integrally formed. Also, when the flange to be connected is a round shape with a circular cross section, the main body portion has a corresponding cross section. It is formed in a circle. The illustrated form of call is an example, and the present invention can be configured in other appropriate forms.

It is an external appearance perspective view of the structural member of the call of one Embodiment of this invention. It is sectional drawing of the state which isolate | separated the structural member of the call of FIG. It is sectional drawing of the state which connected the drain pipe and the trough with the call of FIG. (A), (B) is sectional drawing of the state which connected the drain pipe and the trough with the conventional call.

Explanation of symbols

1 Body part, 2L, 2S joint part, 3 lid part, D drain pipe, G 竪 樋, W outer wall

Claims (2)

It has a cylindrical main body part and a cylindrical joint part projecting to the side of the main body part. The main body part is attached to the eaves, and the drain pipe receiving port formed on the end surface of the joint part is connected to the outer wall of the building. In the call that connects the drainage pipe and the trough by fitting the end of the drainage pipe protruding,
The joint portion is provided with an inner diameter larger than the opening diameter of the drain pipe receptacle and a water return piece projecting toward the main body on the lower inner surface of the drain pipe receptacle.樋. The call body according to claim 1, wherein the main body portion and the joint portion are provided separately, and the joint portion having a width corresponding to the installation interval between the building outer wall and the eaves can be attached to the main body portion.

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