JPH046437Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for mounting a ventilation cylindrical body on a ventilation roof that can be easily and quickly installed and has good rain protection.

[Conventional technology and its problems]

The applicant has already developed a ventilation structure with a folded plate roof that has good rain protection (Utility Model Application No. 61-129039, Utility Model Application No. 61-129040). This is done by providing a through hole at the top of the folded plate roof, providing a cylindrical part in the through hole, forming a shape such that the lower part fits into the peak part from above, and having a through hole in the lower side that is in contact with the outside air. It covers and fixes the ventilation outer casing, which has formed a ventilation roof, and prevents wind and rainwater from entering the room even during strong winds and rain, and has extremely good rain control compared to conventional ventilation roofs. The construction was also very easy.

However, in order to improve rain protection in the folded plate roof ventilation structure, the cylindrical portion provided in the through hole on the top must be watertightly fixed to the through hole location. For this reason, when the cylindrical part is made of steel pipe or the like, fixing to the top through hole is done by watertight fixing means such as welding, or at the same time as drilling the through hole on the top. The cylindrical portion may be formed by raising the periphery of the tube into a cylindrical shape by press working or the like.

These must be done in a factory or the like when manufacturing the roofing sheets for a folded-plate roof, and usually,
Since the wall thickness of a folded plate roof is thin, welding is difficult, and in the case of press working, it is difficult to form the cylindrical part to the required height, and furthermore, welding or press working makes it difficult to fabricate. There are still problems that need to be improved, such as the number of steps involved, which is time consuming and costly.

[Means for solving problems]

Therefore, as a result of intensive research to solve the above-mentioned problems, the inventor created the present invention by drilling a through hole at the top of the peak of a folded plate roof where a peak was formed. On a ventilation roof that covers and fixes a ventilation outer casing with an appropriate gap, a water return flange is formed at the top of a cylindrical part of an appropriate height, and a water return flange is formed at the lower end of the cylindrical part as it goes downward. Ventilation made of an elastic material, with a tapered guide part that gradually becomes thinner, and a cylindrical part immediately above the tapered guide part with an annular locking groove that can be watertightly locked to the periphery of the through hole. By adopting a ventilation cylindrical mounting structure in which the cylindrical body is inserted into the through hole from the top of the peak and its annular locking groove is locked at the periphery of the through hole, the top of the peak of the folded plate roof can be easily penetrated. The ventilation cylindrical body can be fixed to the hole location very simply and quickly, and the watertightness can be improved, thereby solving the above-mentioned problems.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 7.

A is a folded plate roof, and peaks 1, 1, ... are formed continuously or at appropriate intervals (the first
(see figure). This folded plate roof A consists of roof plates having two or more peaks 1, 1, ... in the width direction, and a plurality of these are installed side by side, and the peaks 1, 1 of adjacent roof plates are arranged side by side.
The folded plate roof A is formed by overlapping each other.

A plurality of perfectly circular through holes 2, 2, .

B is a ventilation cylindrical body made of an elastic material such as synthetic rubber or soft synthetic resin, and has a flat annular water return collar part 4 on the outer periphery of the upper part of the cylindrical part 3 having an appropriate wall thickness and an appropriate height. is formed. A burr edge 4a may be formed that is curved downward from the outer end edge of the water return collar portion 4.

At the lower end of the cylindrical portion 3, there is formed a tapered guide portion 5 which is approximately in the shape of an inverted truncated cone and is formed to become gradually thinner as it goes downward. The outer diameter of the lower part of the tapered guide part 5 is smaller than the diameter of the through hole 2, and the outer diameter of the upper part of the tapered guide part 5 is equal to the outer diameter of the lower end of the cylindrical part 3. is formed. In addition, the height of the tapered guide portion 5 is as shown in the solid line section in FIG.
It may be made lower, or if it is made of a relatively hard material, it is preferable that the height is increased and the taper angle θ is acute (see the dashed line in FIG. 3).

Reference numeral 6 denotes an annular locking groove, which is formed in the cylindrical portion 3 immediately above the tapered guide portion 5. The annular locking groove 6 corresponds to the through hole 2, has a depth that allows the peripheral edge of the through hole 2 to be inserted into the annular locking groove 6, and has a groove width (vertical) of the annular locking groove 6. The width) is the same as or slightly narrower than the thickness of the folded plate roof A.

The respective axes of the water return collar portion 4, the cylindrical portion 3, and the tapered guide portion 5 substantially coincide with each other, and the ventilation hole 7 is formed around this axis.

Further, only the outer diameter of the cylindrical portion 3 directly above the location where the annular locking groove portion 6 is formed is made larger than the outer diameter above the tapered guide portion 5 to form a lower flange portion 3a. (See the dashed line in Figure 3). Furthermore, in the embodiment, only the outer diameter of the cylindrical portion 3 directly above the location where the annular locking groove portion 6 is formed is
It is larger than the outer diameter of the cylindrical part 3 on the other side,
Although it is formed in a flange shape, the outer diameter of this flange shape is the original outer diameter of the cylindrical portion 3, and the upper side thereof is made thinner for weight reduction and the like.

The ventilation cylindrical body B is inserted into the through hole 2 of the top part 1a of the folded plate roof A through the tapered guide part 5 (see FIG. 4), and is pressed from above into the through hole 2, As the tapered guide part 5 is inserted deeper and deeper, the tapered guide part 5 becomes gradually thinner (see FIG. 5), and the annular locking groove 6 reaches the periphery of the through hole 2 and becomes the annular locking groove 6. When the periphery of the through-hole 2 is inserted, the ventilating cylindrical body B is fixed to the two through-holes in a water-tight manner by being elastically restored to its original shape.

C is a ventilation outer casing, which is hollow and open at the bottom. Its lower part is formed in a shape corresponding to the peak part 1 of the folded plate roof A. As a specific example, substantially inverted V-shaped outer covering side portions 9, 9 are closed and formed on both sides in the longitudinal direction of an outer covering portion 8 having a shape substantially the same as the peak portion 1 of the folded plate roof A. Bottom parts 10 and 1 of an appropriate width are located inwardly from the lower ends of both sides in the width direction of the covering part 8.
0 is formed, and a through hole 10 is formed in the bottom portions 10, 10.
A, 10a are drilled in plural numbers (see Fig. 1).

Outer side parts 9, 9 of the inverted V-shaped part of the ventilation outer casing C
The lower piece is placed so as to straddle the peak 1 of the folded plate roof A, and the ventilation outer casing C is fixed to the ventilation cylindrical body B on the peak 1 in a saddle state. At this time,
A gap is formed between the peak 1 and the ventilation outer casing C, and the flow from indoors to outdoors or vice versa is controlled through the ventilation holes 7 of the ventilation cylinder B and the ventilation outer casing C. This is done through the hole 10a (see Figure 2).

Numeral 11 is a fixing device that fixes the peak 1 of the folded plate roof A and the ventilation outer casing C. It is fixed from both sides with nuts 11b, 11b, and the upper end is penetrated into the outer covering part 8 of the ventilation outer casing C.
It is tightened with a nut 11b.

In the figure, 12 is a structural member such as a main building.

[Effect of idea]

In the present invention, a through-hole 2 is bored at the top 1a of the crest 1 of the folded plate roof A on which the ridge 1 is formed, and the ventilation outer casing C is formed between the two through-holes with appropriate gaps. In the ventilation roof with the cover fixed, a water return collar part 4 is formed on the upper part of the cylindrical part 3 of an appropriate height, and a tapered guide part 5 is provided at the lower end of the cylindrical part 3, which becomes gradually thinner as it goes downward. A ventilation cylinder part B made of an elastic material is provided in the cylindrical part 3 at the position directly above the tapered guide part 5, and has an annular locking groove part 6 that can be watertightly locked to the periphery of the through hole 2. , by inserting the ventilation cylinder into the through-hole 2 from the top 1a of the mountain part 1 and locking the annular locking groove part 6 to the periphery of the through-hole 2, first of all, the ventilation cylinder can be mounted. B
It can be easily and quickly fixed to two through-holes, and secondly, it can create a ventilation structure with good rain protection.
Thirdly, there are various effects such as being able to easily configure the ventilation structure at the site.

To explain these effects in detail, the ventilation cylindrical body B of the present invention has a tapered guide part 5 at the lower end of the cylindrical part 3, and a tapered guide part 5 is provided at the cylindrical part 3 at the position directly above the tapered guide part 5. By forming the annular locking groove 6, the ventilation cylindrical body B is inserted into the through hole 2 through the tapered guide portion 5, and an appropriate pressing force F is applied to the ventilation cylindrical body B.
, a reaction force R from the periphery of the through hole 2 is naturally generated on the outer periphery of the tapered guide portion 5.
In addition, since the ventilation cylinder B is made of an elastic material, the reaction force R deforms the tapered guide portion 5 into a thinner shape so that the tapered guide portion 5 can be easily inserted, and at the same time, the annular locking groove portion 6 also becomes thinner. The annular locking groove 6 can be easily moved to the two through holes, and the annular locking structure 6 can move to two through holes.
When the position is reached, the annular locking groove 6 returns to its original state due to elastic force, and at the time of this restoration, the annular locking groove 6
The periphery of the through-hole 2 is inserted into the hole, and the ventilation cylinder B can be fixed to the two through-holes. , it can be done simply by pushing it into the through hole 2, and can be done extremely simply and quickly, that is, instantaneously. Moreover, the relationship between the pressing force F and the reaction force R is determined by the taper angle of the tapered guide portion 5 being θ.
Then, it is expressed as F=2Rsin(θ/2), but when the taper angle θ is extremely small and θ is expressed in radians, the above equation can be expressed as F≒R·θ.

Also, since θ is extremely small, 0<θ(rad)<
1, so F<R, and the reaction force R has a larger value than the pressing force F. That is, even if the pressing force F is small, a reaction force R larger than the pressing force F is generated, so there is an advantage that the ventilation cylindrical body B can be fixed to the through hole 2 without particularly increasing the pressing force F.

Therefore, as shown in FIG. 6, when the ventilation cylinder B, which is not provided with the tapered guide part 5, is fixed to the through hole 2, the lower end of the ventilation cylinder B is fixed to the through hole 2, as shown in FIG. Since it comes into contact with the periphery of the hole 2, the ventilation cylinder B cannot be fixed to the through-hole 2 unless an extremely large pressing force F is applied, and if the pressing pressure F is large, the ventilation cylinder B cannot be forcefully pressed. This will cause deformation, which may cause damage such as cracks to the ventilation cylinder B, but
In the present invention, since the pressing force F may be small, the ventilation cylindrical body B can be fixed to the through hole 2 without being subjected to excessive deformation.

Next, in the present invention, the peripheral edge of the through hole 2 is inserted and locked into the annular locking groove 6 of the ventilation cylinder B to fix the ventilation cylinder B to the through hole 2. When the periphery of the through hole 2 is inserted into the hole 6, since the ventilation cylindrical body B is made of an elastic material, the upper and lower surfaces of the annular locking groove 6 are in close contact with the periphery of the through hole 2. ventilation cylinder B and through hole 2
This means that they are fixed in a water-tight manner, so that during strong winds and rain, rainwater that has entered with the wind flowing through the through hole 10a of the ventilation outer casing C will enter the room through the fixed point between the ventilation cylinder B and the through hole 2. It can prevent
Furthermore, even if the rainwater rises up inside the ventilation outer casing C due to turbulence such as strong winds, it is bounced back by the water return flange 4 provided at the top of the ventilation cylinder B, and the ventilation cylinder It is possible to prevent rainwater from entering through the ventilation hole 7 of B.

In addition, the present invention has a simple structure, and if the through hole 2 is bored in the top part 1a of the folded plate roof A, welding and
The ventilation cylindrical body B can be easily and quickly fixed to the two through-holes without using adhesives, and by preparing the ventilation outer casing C, ventilation equipment can be installed on the folded plate roof A even on site. It can be easily constructed. That is, if the ventilation cylinder B is made of steel pipe or the like, the ventilation cylinder B cannot be watertightly fixed to the two through holes without welding, and furthermore, the ventilation cylinder B cannot be fixed watertightly to the two through holes without welding. Even when B is integrally formed on the periphery of the through hole 2 by press working etc.,
Large press machines are required and these can only be manufactured in factories, so for example, folded plate roof A, which did not require a ventilation system at the design stage, will require a ventilation system at the construction stage. When such a situation occurred, the roof panels had to be removed and a new roof panel with ventilation cylinder B manufactured at the factory had to be re-roofed.
However, according to the present invention, the ventilation system can be constructed extremely easily by simply drilling the through holes 2 at appropriate locations on the folded plate roof A, and even in the above-mentioned situation, it saves time. and cost losses can be minimized.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cut away perspective view of the invention, Fig. 2 is a vertical side view of Fig. 1, and Fig. 3 is a part of the ventilation cylinder. The partially cut away side view, Figures 4 and 5 are schematic views showing the construction procedure of the present invention, and Figures 6 and 7 are schematic diagrams showing the construction procedure of an embodiment other than the present invention. be. A...Folded plate roof, 1...Mountain part, 1a...Top part,
2... Through hole, B... Ventilation cylindrical body, 3... Cylindrical part,
4... Water return flange part, 5... Tapered guide part, 6
...Annular locking groove, C...Ventilated outer casing.

Claims (1)

[Scope of utility model registration request] A through-hole is drilled at the top of the crest of a folded plate roof with a ridge formed therein, and the through-hole is placed at an appropriate height with an appropriate gap in the ventilation roof which is covered and fixed to the ventilation outer casing. A water return flange is formed at the top of the cylindrical part, a tapered guide part is provided at the lower end of the cylindrical part, and the taper-shaped guide part becomes gradually thinner as it goes downward, and the cylindrical part immediately at the upper end of the tapered guide part is provided with: An annular locking groove portion that can be locked in a watertight manner is formed on the periphery of the through hole;
A ventilation cylindrical body mounting structure characterized in that a ventilation cylindrical body made of an elastic material is inserted into a through hole from the top of a mountain portion, and its annular locking groove portion is locked to the periphery of the through hole.