JP2006132287A - Coffin fittings - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dredging joint capable of increasing the amount of drainage of rain gutter at a low cost without impairing the appearance.
SOLUTION A dredging joint 1 is a hollow joint that connects crutches 15 and 16 used for drainage and has a hollow drainage channel 6 therein, and projects from the peripheral wall 2 into the drainage channel 6. A throttle 4 is formed in the drainage channel 6 to form an opening 5 that is smaller than the inner diameters of the flanges 15 and 16.
[Selection] Figure 1

Description

  The present invention relates to a joint for scissors for connecting one scissors used for drainage and another scissors.

  Conventionally, in order to drain rainwater from the eaves of the roof downward, for example, a lantern attached to the eaves of the roof is connected to the eaves via a joint, and this gutter is further underground. The structure of a rain gutter connected to a drain pipe buried in is known.

  However, in such a rain gutter structure, in order to increase the flow rate of water that can be treated by the eaves, the cross-sectional dimensions of the eaves itself, the diameter of the eaves, the diameter of the eaves, or the number of these can be increased. This will increase costs and reduce appearance.

  Therefore, a siphon-type drainage system has been devised as a rain gutter structure that increases the amount of wastewater treatment without causing such an increase in diameter or increase in number (see, for example, Patent Document 1 and Patent Document 2). ).

  That is, Patent Document 1 provides a siphon in which a recess-shaped drop opening having a cross-sectional dimension smaller than that of the eave bowl and having a larger cross-sectional dimension is provided on the bottom face of the eave fence, and a hook is connected to the bottom face of the drop opening. A drainage system is described.

  Patent Document 2 describes a roof intake port in which two parallel flat plates are spaced apart from each other above a drop port provided in a bowl-shaped body.

  However, the rain gutter described in Patent Document 1 cannot be expected to have an effect unless it has a large depth as a recess-shaped drop opening. However, a recess-shaped drop opening having a large depth on the bottom surface of the eaves wall. If the eaves are provided, a large pit is visible when the eaves is viewed from below, and the appearance is not good.

Moreover, in the rain gutter described in Patent Document 2, dust such as fallen leaves is easily caught on the flat plate, and dust clogging is likely to occur at the drop mouth, and dust removal is troublesome. Furthermore, there is a problem that the drainage structure of the outlet is complicated and also causes an increase in cost.
Japanese Patent Application Laid-Open No. 9-111972 Japanese National Patent Publication No. 8-506396

  This invention is made | formed in view of such a problem, and makes it the subject to provide the coupling for dredgings which can increase the wastewater treatment amount of rain gutter at low cost, without impairing appearance.

  In order to solve such a problem, the invention described in claim 1 is a dredging joint having a hollow drainage channel connected to a trough used for drainage, and the drainage channel from a peripheral wall. It is a joint for saddles provided with the throttle part which protrudes inward and forms the opening smaller than the internal diameter of the said saddle in this drainage channel.

  According to a second aspect of the present invention, in the joint for scissors according to the first aspect, the opening has a circular shape.

  According to a third aspect of the present invention, in the joint for scissors according to claim 1 or 2, the bent pipe joint that connects the scissors and an extending scissors extending from one end of the scissors in the other direction. And the said aperture | diaphragm | squeeze part is distribute | arranged to the edge part side to which the said collar is connected, It is characterized by the above-mentioned.

  Invention of Claim 4 is a branch pipe joint which connects the said scissors and the branch scissors branched from this scissors in the joint for scissors of Claim 1 or Claim 2, Comprising: The said branch The throttling portion is arranged on an end side to which the ridge above the ridge branch position is connected.

  According to the invention according to any one of claims 1 to 4, the throttle portion is provided in the throttle portion that protrudes from the peripheral wall into the drainage channel and forms an opening smaller than the inner diameter of the trough. As a result, a siphon phenomenon is induced, and the wastewater treatment capacity in the rain gutter using this dredging joint can be greatly improved. In addition, it is not necessary to increase the cross-sectional dimension, the size of the eaves, the diameter of the eaves, or increase the number of eaves as in the past, and the structure of the eaves joint itself is simpler and further improved in appearance. Is no different from ordinary joints. Therefore, with the joint for dredging, it is possible to increase the amount of drainage of rain gutter without incurring problems such as an increase in cost and a decrease in appearance.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a joint for scissors according to an embodiment of the present invention. This dredging joint 1 is a hollow cylinder having a substantially square shape in plan view with its four corners recessed in an arc toward the inside, and this hollow space becomes a drainage channel 6. The scissors joint 1 is made of, for example, resin and is formed by injection molding. At both the upper and lower ends (both ends in the axial direction) of the flange joint 1, connection portions 3 for fitting the flanges to the inner surface of the peripheral wall 2 are formed.

  In addition, a throttle portion 4 is provided inside the heel joint 1. The throttle portion 4 protrudes from the peripheral wall 2 into the drainage channel 6 in a direction perpendicular to the peripheral wall 2, and a cylindrical opening (opening) 5 extending downward in the axial direction is provided at the center thereof. The opening 5 is formed so that its inner diameter is smaller than the inner diameter of the trough, thereby inhibiting the flow of water in the drainage channel 6.

  This dredging joint 1 connects the troughs by internally fitting the scissors used for drainage into the connecting portions 3, and FIG. 2 shows a rain gutter system using the dredging joint 1. An example is shown. In this rain gutter system 10, an eaves 11 is attached to the eaves of a roof 30 of a house, and one end of a call bar 13 is connected to the lower side of the eaves 11 via an elbow 12. On the other hand, the other end of the call bar 13 is connected to the upper end of the bar 15 via an elbow 14. The lower end of the flange 15 is connected to the upper end of the flange 16 via the flange joint 1. That is, the lower end of the flange 15 is internally fitted into the connection portion 3 at the upper end of the flange joint 1, and the upper end of the flange 16 is internally fitted into the connection portion 3 at the lower end of the flange joint 1.樋 15 and 竪 樋 16 are connected. Furthermore, the lower end of the gutter 16 is connected to a drain pipe 18 embedded in the ground via a drain pipe cover 17.

  In this rain gutter system 10, the eaves gutter 11, the call gutter 13, the gutters 15, 16, the elbows 12, 14, and the gutter joint 1 form a drainage channel 6 to the drain pipe 18, and the roof 30 After the rain water falling on the eaves 11 is received by the eaves 11, it flows in order through the elbow 12, the call 13, the elbow 14, the eaves 15, the eaves joint 1, and the drainage channel 6 in the eaves 16. It flows down along 31 and is finally drained into the drain pipe 18.

  At this time, the flow of rainwater flowing through the eaves 15 is once inhibited by the throttle portion 4 of the eaves joint 1. As a result, the inside of the drainage channel 6 above the throttle part 4 becomes full and causes a siphon phenomenon, so that the drainage is vigorously drained downward (to the drainage pipe 18 side). The siphon phenomenon here will be described. When the flow of rainwater from above is obstructed by the throttle portion 4 and the upper drainage channel 6 becomes full, air flows into the drainage channel 6 below the throttle portion 4. It becomes difficult. As a result, the rainwater in the lower drainage channel 6 becomes close to a vacuum state that does not contain air bubbles. As a result, the rainwater in the lower side pulls the rainwater in the upper drainage with a large force while flowing down. Becomes easier to flow.

  In the dredging joint 1 according to this embodiment, a throttle portion 4 is provided which protrudes from the peripheral wall 2 into the drainage channel 6 in a direction perpendicular to the peripheral wall 2 and has an opening 5 smaller than the inner diameter of the flange 15. Therefore, the siphon phenomenon is induced by the throttle portion 4 as described above, and the wastewater treatment capacity in the rain gutter system 10 using the gutter joint 1 can be greatly improved.

  In addition, it is not necessary to increase the cross-sectional dimensions, the size of the eaves, the diameter of the eaves, or increase the number of eaves as in the prior art, and the structure of the eaves joint 1 is simple and has a further appearance. The top is no different from normal joints. Therefore, the dredging joint 1 can increase the amount of drainage of rain gutter without incurring problems such as an increase in cost and a decrease in appearance.

  Furthermore, since the throttle part 4 is formed in the gutter joint 1 which is a joint part of the gutter, the versatility is high, and the siphon effect can be easily achieved simply by using the gutter joint 1 for a normal gutter. Can get to.

  The present invention is not limited to the above-described embodiment. For example, in the present embodiment, the joint for scissors (joint 1 for scissors) has one scissors (15) and other scissors. However, the present invention is not limited to this, and for example, a bent pipe joint (elbow) that connects a spear and a spear or the like and a spear that branches off the spear It may be a branch pipe joint (cheese) or the like to be connected.

  For example, as schematically shown in FIG. 3A, the curved pipe joint 20 connects a flange 21 and a callout (extension rod) 22 extending from one end of the flange 21 in the other direction. Therefore, the narrowed portion 4 is formed on the end side (the lower end side in FIG. 3A) to which the flange 21 is connected, among the end portions of the bent pipe joint 20. Further, as schematically shown in FIG. 3 (b), the branch pipe joint 25 connects the flanges 26, 27 and the horizontal anchor (branch rod) 28 branched from the flanges 26, 27. Of the three end portions of the branch pipe joint 25, the throttle portion 4 is formed on the upper end side to which the flange 26 is connected (upper end side than the branch position). Thus, by providing the aperture | diaphragm | squeeze part 4, it becomes possible to induce a siphon phenomenon reliably.

BRIEF DESCRIPTION OF THE DRAWINGS The joint for scissors which concerns on embodiment of this invention is shown, (a) is the perspective view seen from upper direction, (b) is the perspective view seen from the downward direction. It is a figure which shows an example of the gutter system using the coupling for gutters of FIG. The other example of the rain gutter system using the joint for dredging is shown typically, (a) is the figure which shows the case where the joint for dredging is a curved pipe joint, (b) It is a figure which shows the case of a branch pipe coupling.

Explanation of symbols

1 Fence joint 2 Peripheral wall 4 Restriction part 5 Opening part (opening)
6 Drainage channels 15, 16, 21, 26, 27 竪 樋 20 Curved pipe joint (joint for 竪 樋)
22 Calling (extended)
25 Branch pipe joint
28 Yokohama (branch fence)

Claims (4)

It is a joint for dredging that has a hollow drainage channel inside that is connected to the dredging used for drainage,
A gutter joint comprising a throttle portion that protrudes from a peripheral wall into the drainage channel and forms an opening smaller than the inner diameter of the gutter in the drainage channel.   The joint for scissors according to claim 1, wherein the opening has a circular shape. A curved pipe joint that connects the rod and an extending rod extending in the other direction from one end of the rod;
The joint for scissors according to claim 1 or 2, wherein the throttle part is arranged on an end side to which the scissors are connected. A branch pipe connecting the flange and a branch flange branched from the flange;
3. The scissor joint according to claim 1, wherein the throttle portion is disposed on an end side to which the scissors are connected above the branch position of the branch scissors.

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