JPH08177178A - Drainage device for top light - Google Patents

Abstract

PURPOSE: To prevent condensed dew water led in main part of an inclined beam from overflowing receiving grooves while flowing backward through through-holes. CONSTITUTION: Receiving grooves 12a, 12a are formed by lug pieces 11a, 11a having a cross section of L-shaped configuration formed outside of a pair of right and left vertical plane parts forming main parts 10 of inclined crossbeams 5a. Upper surface 24 of bottom plane part 9 of the main part 10 is formed so as to be disposed lower position than that of bottom surfaces 26, 26 of the receiving grooves 12a, 12a. Thus, the upper surface 24 is disposed substantially the same position as the bottom surface of coupling member or lower.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The toplight drainage device of the present invention is used to discharge the dew condensation water generated on the lower surface of the toplight downward by using the inclined beam as a drainage channel.

[0002]

2. Description of the Related Art For example, when a space between walls of a pair of buildings built close to each other is used as a terrace, a daylight roof called a top light is provided above the terrace. FIG. 4 is a partial sectional view of a conventional top light. This toplight is formed by combining a plurality of frame members 1 each made of H-shaped steel, and a plurality of glass panels 3 and 3 are provided above a support frame 2 which spreads in an inclination direction (front and back directions in FIG. 4). It consists of supporting.

That is, a plurality of inclined beams 5, each of which is an extruded material of an aluminum alloy, are arranged along each frame member 1 by leg pieces 4 fixed to a plurality of upper surfaces of each frame member 1. There is. Then, the edge portions of the glass panels 3 and 3 are placed on the slanted beam 5, and the glass restraining member 6 screwed and fixed to the upper end portion of the slanted beam 5 is used to form the glass panels 3 and 3, respectively.
The upper surface of the peripheral portion of the glass panel is suppressed, and the edges of the adjacent glass panels 3 and 3 are simultaneously connected. The inclined beam 5 is composed of a pair of left and right vertical plate parts 7, 7 and a top plate part 8 and a bottom plate part 9 which connect the upper and lower end edges of the vertical plate parts 7, 7 to each other, and have a rectangular cross section. It has a part 10. Then, on the outer surface of the lower end portion of the vertical plate portions 7, 7, there are provided projecting pieces 11, 11 having a horizontal L-shaped cross section, and the upper side of each projecting piece 11, 11 is a receiving groove 12, 12 whose upper side is opened. I am trying. Further, on the upper surface of the top plate portion 8, the vertical supporting portions 13 are formed with concave grooves 14 and 14 divided into the left and right in FIG. This groove 1
The downstream end portions of 4 and 14 communicate with the upper end of a drainage tube (not shown), if necessary.

Downstream end portions of the receiving grooves 12, 12 of the inclined beam 5 (when a plurality of inclined beams 5 are vertically connected in the inclination direction and end surfaces thereof are opposed to each other and are connected to each other, the inclined beams are positioned on the upper side in the inclination direction). The lower end side of 5 is closed by a dam member 15 made of synthetic resin, rubber or the like in the shape of a rectangular parallelepiped as shown in FIG. Further, as shown in the figure, a through hole 16 is formed in a part of the vertical plate portions 7, 7 aligned with the downstream end of the receiving groove 12.
Is formed.

A packing 17 is provided between the upper edge of the inclined beam 5 and the lower surface of each glass panel 3, 3 and caulking is provided between the lower surface of the glass restraining member 6 and the upper surface of each glass panel 3, 3. The materials 18 are respectively provided to maintain the watertightness of the connecting portions between the edges of the adjacent glass panels 3 and 3. The inclined beams 5 are arranged along the frame member 1 which constitutes the grid-shaped support frame 2 and are vertically connected in series along the longitudinal direction (front and back directions in FIG. 4). .

The slanted beams 5 and 5 which are vertically adjacent to each other are shown in FIG.
By using the connecting member 19 shown in FIG. 5 and the caulking material 23 shown in FIG. 5, they are connected as shown in FIG. The connecting member 19 is a rectangular tubular main portion 10 that constitutes the inclined beam 5.
It has a fitting portion 20 that can be inserted into the fitting portion 20 without rattling, and a fitting insertion portion 21 having an outer surface shape that is smaller than the outer surface of the fitting portion 20 by a step a on each side. The inside of the connecting member 19 is formed into a rectangular tubular shape to form a passage 22. As shown in FIG. 7, the connecting member 19 thus formed has the fitting portion 20 at the downstream end (the left end in FIG. 7) of the main portion 10 that constitutes the inclined beam 5 on the upper side (right side in FIG. 7). Part) without rattling, and the insertion part 21 is loosely inserted into the inner surface of the upstream end (right end in FIG. 7) of the main part 10 constituting the lower (left side in FIG. 7) slant beam 5. To do. The caulking material 23 is filled between the inner surface of the upstream end portion and the outer peripheral surface of the fitting insertion portion 21 and between the mutually facing edges of the vertically adjacent inclined beams 5 and 5. , The vertically adjacent inclined beams 5 and 5 are connected to each other.

The inclined beams 5 and 5 are formed to have a length necessary for mounting the side edge portions of the glass panels 3 and 3 in consideration of transportation and assembling work on site. ing. Therefore, in the above-described connection, as shown in FIG. 8, the fitting portion 20 of the connecting member 19 is attached to the downstream side end portion (the left end portion in FIG. 8) of the main portion 10 of the inclined beam 5 arranged above. (FIGS. 6 to 7) and a part of the fitting insertion portion 21 on the fitting portion 20 side are inserted, and a caulking material is provided in a gap between the outer peripheral surface of the fitting insertion portion 21 and the inner peripheral surface of the main portion 10. 23 is filled and the inclined beams 5 and 5 and the connecting member 19 are previously coupled. Next, at the assembly work site, the fitting insertion portion 21 of the connecting member 19 connected to the inclined beam 5 arranged on the upper side is inserted into the upstream end of the main portion 10 of the inclined beam 5 arranged on the lower side. It is loosely inserted, and the caulking material 23 is filled between the gaps between the surfaces facing each other and the end surfaces of the inclined beams 5, 5 facing each other, and the caulking materials 23 are connected as described above and assembled sequentially.

Condensation water adheres to the lower surfaces of the glass panels 3 and 3 of the top light including the inclined beams 5 and 5 and the glass panels 3 and 3 as described above at night. The condensed water flows along the lower surfaces of the glass panels 3 and 3 and flows down to the gutter members 27 and 27 provided in the horizontal direction below the lower ends of the glass panels 3 and 3. Then, the condensed water flows horizontally on the upper surfaces of the gutter members 27, 27, and the projections 11, 11 formed on the outer surface of the main portion 10 forming the inclined beams 5, 5, the receiving groove 12 on the upper surface, Run down to 12. Further, the condensed water flows down through the receiving grooves 12, 12 as shown in FIG. In this way, each receiving groove 12, 12
The condensed water 28 that has flowed down and reached the connecting portion between the vertically adjacent inclined beams 5 and 5 is blocked by the dam member 15 and cannot flow down the receiving grooves 12 and 12 any more, and thus the main portion 10 described above.
Through the through holes 16 formed in the vertical plate portions 7, 7, which make up the above. And the above-mentioned condensed water 28
Flows through the main portion 10 and is discharged downward. The rainwater leaked due to the water sealing failure between the peripheral portions of the glass panels 3 and 3 and the caulking materials 18 and 18 is discharged through the concave grooves 14 and 14.

[0009]

However, in the toplight drainage device in the above-mentioned conventional structure,
When the vertically adjacent slanted beams 5 and 5 are connected to each other, the main portion 1
The bottom surface 25 of the passage 22 in the connecting member 19 with respect to the upper surface 24 of the bottom plate portion 9 of 0 has the above step a and the thickness b of the fitting insertion portion 21.
And c (= a + b), which is the sum of Then, the condensed water 28 collected in the receiving groove 12, passing through the through hole 16 and flowing into the main portion 10 is the fitting portion 20 of the connecting member 19.
Is blocked by the end face of. Therefore, the water level of the dew condensation water 28 that has flowed into the main portion 10 becomes higher than the water level in the receiving groove 12, flows back through the through hole 16 and is pushed back into the receiving groove 12, and overflows from the receiving groove 12, etc. Inconvenience occurs. In order to compensate for this inconvenience, the receiving groove 12 must be deepened,
Another problem arises that the material cost is high. The above-mentioned reverse flow of the condensed water does not have the through hole 16 at the downstream end of the vertical plate portion 7 as shown in FIG. It is thought that this can be prevented by providing it. However, when the through hole 16 is provided on the upstream side of the downstream end of the vertical plate portion 7 shown in FIG. 5, it is difficult to set a receiving mold used for punching the through hole 16, It is difficult to use because it may cause inconvenience such as deterioration of work efficiency and increase of cost. The present invention has been made in view of such circumstances.

[0010]

DISCLOSURE OF THE INVENTION A toplight drainage device according to the present invention comprises a plurality of inclined beams which are formed by extrusion molding of an aluminum alloy and are supported in an inclined direction, and a light beam which is supported on the upper surface of the inclined beams. It discharges water generated on the lower surface of the top light provided with a transparent panel, and has the following requirements.

Each of the inclined beams has a main portion having a rectangular cross section in which upper and lower end edges of a pair of left and right vertical plate portions are connected by a top plate portion and a bottom plate portion, and an outer surface of at least one of the vertical plate portions. The formed projecting piece has a horizontal L-shaped cross section, and a receiving groove provided on the upper side of the projecting piece and having an upper opening. The end portions of the vertically adjacent inclined beams are connected to each other through a rectangular tubular connecting member having both ends inserted inside the end portions of the main portions forming the inclined beams. The lower end of the receiving groove provided on the upper inclined beam is closed by a dam member. A through hole is formed in a portion of the vertical plate portion that constitutes the upper inclined beam and is aligned with the lower end portion of the receiving groove.

The above constructions 1 to 3 are the same as those of the conventional toplight drainage device described above. In particular, in the case of the drainage device for a top light of the present invention, the following constituent requirements are provided in addition to the above constituent requirements. The upper surface of the bottom plate portion is located below the bottom surface of the receiving groove. More preferably, the inner peripheral bottom surface of the connecting member is located below the bottom surface of the receiving groove. The upper and lower positional relationships are for comparison at the same axial position.

[0013]

According to the drainage device for a top light of the present invention constructed as described above, the water level inside the main portion is the water level in the receiving groove in the through hole portion that communicates the inside of the main portion with the receiving groove. No higher than. As a result, water does not flow back from the main part to the receiving groove, and drainage can be reliably performed without making the receiving groove particularly deep.

[0014]

1 and 2 show an embodiment of the present invention.
The drainage device for a top light of the present invention is characterized in that the upper surface 24 of the bottom plate portion 9 of the main portion 10 that constitutes the inclined beam 5 is attached to the right and left 1
Receiving grooves 12a, 1 formed on the outer surfaces of the pair of vertical plate portions 7, 7.
It is located at a point below the bottom surfaces 26, 26 of 2a. Since the other parts are the same as the conventional structure described above, the same parts are designated by the same reference numerals to omit or simplify the overlapping description, and the characteristic parts of the present invention will be mainly described below.

The inclined beam 5a has a main portion 10. The main part 10 has a pair of left and right vertical plate parts 7, 7 and a top plate part 8 and a bottom plate part 9 provided between the upper and lower end edges of the vertical plate parts 7, 7. Besides functioning as a member, it also functions as a drainage channel. The size of the main portion 10 itself is the same as that of the conventional structure described above. The vertical plate parts 7, 7
On the outer side of the protrusions 11a, 11a having a horizontal L-shaped cross section.
Are provided, and receiving grooves 12a, 12a having an open top are provided on the upper surfaces of the respective projecting pieces 11a, 11a. Each of the above protruding pieces 1
Reference numerals 1a and 11a denote outer side surfaces of the vertical plate portions 7 and 7, and are provided above the bottom plate portion 9. The upper surface 24 of the bottom plate portion 9 is the bottom surface 2 of the receiving groove 12a, 12a.
It is located below the heads 6 and 26 by a drop H.

The upper surface 24 of the bottom plate 9 and the receiving grooves 12a, 1
The drop H between the bottom surface 26 of 2a and the bottom surface 26 of the 2a is
The fitting portion 20 and the fitting insertion portion 21 of the connecting member 19 for connecting the 5a.
Is approximately equal to or slightly larger (H ≧ c) than the sum c (= a + b) of the step a between the and the thickness b of the bottom surface 25 of the fitting portion 21.

The downstream end (left end in FIG. 2) of the receiving groove 12a is closed by a dam member 15a as shown in FIG. A through hole 16 is formed in a part of the vertical plate portions 7, 7 that is close to the dam member 15a and is aligned with the downstream end of the receiving groove 12a. The dam member 15a has a stepped portion 15b at the end portion on the connection side (the left end portion in FIG. 2).
Is formed. And caulking material 23 described later
Is filled up to this step portion 15b to enhance the watertightness of the downstream end portion of the receiving groove 12a.

The inclined beams 5a, 5a formed as described above and arranged in the inclination direction on the frame member 1 (front and back directions in FIG. 1, diagonally left and right directions in FIG. 2) are shown in FIGS. As shown, the rectangular tubular connecting member 19 and the caulking material 23 are watertightly connected. The connecting method in this embodiment is the same as that of the above-mentioned conventional example.

In the toplight drainage device of the present invention, the bottoms 26, 2 of the receiving grooves 12a, 12a of each inclined beam 5a, 5a are provided.
6, the upper surface 24 of the bottom plate portion 9 constituting the main portion 10
As shown in FIG. 3, by locating the head H downward (shifting the formation position of the protrusions 11a, 11a upward),
The bottom surface 25 of the connecting member 19 is the bottom surface 26 of the receiving groove 12a.
Located at or below the same height as. Therefore, the condensed water 28 collected in the receiving groove 12a of the upper side inclined beam 5a (right side in FIG. 2), passing through the through hole 16 and flowing into the main portion 10 is blocked by the connecting member 19 from flowing. Also, without backflow from the through hole 16 to the receiving groove 12a side,
It flows down into the main part 10 of the inclined beam 5a on the lower side (left side in FIG. 2), passes through the inside of the main part 10 of the inclined beams 5a and 5a connected in sequence, and is discharged downward.

[0020]

Since the toplight drainage device of the present invention is constructed and operates as described above, drainage does not overflow from the receiving groove. Therefore, it is not necessary to form the receiving groove deep. As a result, the manufacturing cost of the inclined beam does not increase, and a toplight that does not leak water can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of an inclined beam that is vertically connected.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a vertical sectional view showing a conventional structure.

FIG. 5 is a perspective view of a main part of an inclined beam that is vertically connected.

FIG. 6 is a perspective view of a connecting member.

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

FIG. 8 is a perspective view showing an end portion on the downstream side of an inclined beam on which a connecting member is mounted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame material 2 Support frame 3 Glass panel 4 Leg piece 5, 5a Inclined beam 6 Glass restraining material 7 Vertical plate part 8 Top plate part 9 Bottom plate part 10 Main part 11, 11a Projection piece 12, 12a Receiving groove 13 Vertical support part 14 Recessed groove 15, 15a Weir member 15b Step portion 16 Through hole 17 Packing 18 Caulking material 19 Connecting member 20 Fitting portion 21 Fitting insertion portion 22 Passage 23 Caulking material 24 Top surface 25, 26 Bottom surface 27 Gutter member 28 Condensate

Claims (1)

[Claims] 1. A lower surface of a top light provided with a plurality of inclined beams which are formed by extrusion molding of an aluminum alloy and are supported in an inclined direction, and a light-transmissive panel supported on an upper surface of the inclined beams. The discharged water, the next ~
Drainage device for top light that meets the requirements of. Each of the inclined beams is formed on a main part having a rectangular cross section in which upper and lower end edges of a pair of left and right vertical plate parts are continuous by a top plate part and a bottom plate part, and an outer surface of at least one of the vertical plate parts. It has a protrusion having a lateral L-shaped cross section and a receiving groove provided on the upper side of the protrusion and having an upper opening. The end portions of the vertically adjacent inclined beams are connected to each other through a rectangular tubular connecting member having both ends inserted inside the end portions of the main portions forming the inclined beams. The lower end of the receiving groove provided on the upper inclined beam is closed by a dam member. A through hole is formed in a portion of the vertical plate portion that constitutes the upper inclined beam and is aligned with the lower end portion of the receiving groove. The upper surface of the bottom plate portion is located below the bottom surface of the receiving groove.