JPH0237921Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is an expansion joint wind and rain prevention device, specifically, a device installed between building structures such as parapets that are closely spaced and facing each other. , an expansion joint in which a draining cap is provided on at least one of the building structures via a cap holder, and an expansion joint that prevents wind and rain from blowing between the building structure and the draining cap. Regarding the wind and rain prevention device for joints and joints.

(Prior art) In general, an expansion joint cover is installed between two building structures that face each other closely and at least one of which is a rising structure such as a parapet installed on the building. For expansion joints that cover the space between building structures, in addition to the expansion joint cover, a Kasagi holder is fixed on the rising building structure in advance, and the Mizukiri Kasagi is secured to this Kasagi holder. It is done to protect the structure of the building from wind and rain by fixing it. in this case,
Since the cap holder is interposed between the water cutter cap and the building structure, it is unavoidable that a space is formed between the members. Moreover, this space was not sealed, and since there were gaps formed at both ends of the space through which air could circulate, wind and rain could sometimes blow into the space.

For example, the one shown in FIG. 1 is a conventional expansion joint, in which short Kasagi holders 40 are fixed at regular intervals on building structures a, a' such as parapets that are closely spaced apart. Furthermore, on the inside of both holders 40, a long support portion 41 is provided with a draining cap locking groove 41a. The locking portion 40a of the Kasagi holder 40 projects diagonally downward from the upper end of the building structures a, a'. Reference numeral 42 denotes a long water-cutting cap, and one end of the water-cutting cap 42 is engaged with the water-cutting cap latching groove 41a of the supporting portion 41, and the other end thereof is fixed with the latching portion 40a of the cap holder 40. Therefore, it is fixed on the building structures a and a'. Note that there is a joint on the support part 41.
A holder 46 is mounted and held, and an expansion joint cover is fitted over the holder 46. 44 is an airtight material, and 45 is a water stop plate.

In this way, building structures a, a' and Mizukiri Kasagi 42
In an expansion joint configuration in which the cap holder 40 is interposed between the water-cutting cap 42 and the building structure, and the locking portion 40a thereof protrudes to the side of the building structures a and a', structurally speaking, the water-cutting cap 42 and the building structure It is unavoidable that a space S having an open end at _S1 is generated between a and a'. Moreover, at the opposite end of this space S, the support part 41 and the building structure a,
It is closed by fixing with a′. However, since it is impossible to configure the upper surfaces of building structures a and a' as completely flat surfaces during construction, it is unavoidable that some unevenness will occur, and the supporting parts will be placed on these uneven surfaces. 41 is mounted and fixed, a gap 〓S ₂ is created between the lower end surface 41b of the support member and the recessed portions of the building structures a and a' in which air can flow. During this time
Since S ₂ will communicate with the space S, after all, the space S will communicate with the outside at both ends, so the air in the space S will be able to circulate with the outside, and for example, wind and rain will be able to flow between the drain ends. When the air is blown from _S2 , the internal pressure of the space S is increased by the air blowing, so it is blown out into the building structure between a and a' through _S2 . Therefore, if the blowing continues for a long time, wind and rain will be blown into the space S from the space _S1 , and then from the back side of the water stop plate 45 through the drain base space _S2 into the space between the building structures. infiltrate. For this reason, there are disadvantages such as moisture filling the space, staining the building frame, causing mold, and accelerating weathering of the building.

(Purpose of the invention) The present invention solves the above-mentioned drawbacks by forming a stagnation space in which air does not move between the expansion joint's draining cap and the building structure, and reducing the internal pressure in this space from the outside. The purpose of the present invention is to propose a device for preventing wind and rain from blowing into a mizukiri kasagi, which prevents wind and rain from blowing in by always keeping the pressure equal to the blowing pressure of wind and rain.

(Means for achieving the purpose) In order to achieve the above purpose, the expansion joint wind and rain prevention device according to the present invention has the following features:
An expansion joint cover is erected between two building structures that face each other in close proximity and at least one of which is an upright structure erected on top of a building to cover the gap between these building structures. In the expansion joint, a support part for supporting one side of the expansion joint cover is erected on the side between the top end of the rising structure and the support part that supports one side of the expansion joint cover. The locking pieces of the Kasagi holder, which are arranged and fixed at regular intervals along the longitudinal direction of the top end, protrude diagonally downward from the end opposite to the spacer, and the expansion holder is placed on the Kasagi holder.・The above-mentioned Mizukiri Kasagi is arranged below the joint cover, and the above-mentioned interval between the Mizukiri Kasagi is
The side end extends to the support part, and the end of the mizukiri kasagi on the opposite side from the gap is locked by the locking piece, and the lower end of the support part is fixed. A water stop plate fitting groove is formed in the water stop plate fitting groove, and one edge of the water stop plate made of an elastic material and disposed within the gap between the structures is fitted into the water stop plate fitting groove. , the lower end of the support part and the rising structure are pressed into contact with each other to seal the gap between the water cutter cap and the rising structure, while the gap between the sealing part and the ceiling On the opposite side across the end,
An opening space is formed between the water cutter cap and the standing structure, and the water stop plate fitting groove is formed at the lower end of the expansion joint cover support of the other building structure. The other edge of the water plate is fitted, and the other edge is brought into pressure contact between the supporting portion of the other building structure and the other building structure.

(Example) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 2 is a cross-sectional view of an expansion joint installed between structures such as parapets formed in building frames that are closely spaced from each other.

The symbol A indicates an expansion joint. This expansion joint A is provided on the space 〓α formed on the outside of each rising structure a, a' such as a parapet, which is erected at approximately the same height with respect to each other. , a′, a Mizukiri Kasagi 2 covered over the Kasagi holder 1, and an extract held at the base of the Mizukiri Kasagi 2 that covers the space between the rising structures a and a′ α. Between pansion joint cover 3 and the above〓α
It consists of a water stop plate 4 stretched inside.

The end of the water stop plate 4 is pressed between the end of the water-cutting cap 2 on the α side and the rising structures a, a', and the water-stop plate 4 is pressed against the end of the water-cutting cap 2 on the α side, and the water-stop plate 4 is pressed against the end of the water-cutting cap 2 on the An air retention space S is formed between and the rising structures a and a'.

That is, the Kasagi holder 1 is short, and has a locking piece 1b provided at one end of the screw-fastened fixing piece 1a, and a locking protrusion 1c formed bent at the upper end of the other end. A Kasagi receiving portion 1d is formed approximately above the central portion. The above-mentioned Kasagi holder 1 is fixed on the upright structures a, a' by screwing the screw fixing pieces 1a to the anchor plugs 5 buried in the upright structures a, a', and at this time, the Piece 1b is a rising structure a,
It protrudes obliquely downward along the inner wall surface 6a of a'.

The Mizukiri Kasagi 2 is long, and has a Kasagi main body 2a that is bent at one end and covers the tops of the standing structures a and a′, and an expander that is erected from the end on the α side between the Kasagi main body 2a. Support part 2 of the joint cover 3
b, and by locking locking pieces 7a and 7b formed at the α side and the opposite end between the Kasagi main body 2a and the locking protrusion 1c and the locking piece 1b, respectively. It is fixed on the Kasagi holder 1.

An airtight material fitting groove 8 and a hook-shaped locking protrusion 9 are formed at the upper end of the expansion joint cover support portion 2b. An airtight member 10 is fitted and held in the fitting groove 8, and a joint holder 11 is attached to the locking protrusion 9.

The joint holder 11 has bent locking pieces 11a at both ends, and a short W-shaped elastic holding part 11 made of an integral or separate member on the back side of the center part.
b is provided, and both side release portions of this holding portion 11b are locked to the locking protrusion 9. This joint
An expansion joint cover 3 is fitted over the holder 11.

The expansion joint cover 3 is long and bent at both ends, and a locking receiving part 3b is provided at the end. The expansion joint cover 3 has a bent portion 3a.
is pushed down along the locking piece 11a, and this locking piece 1
It is fitted over the joint holder 11 by resiliently locking the tip end of 1a to the locking receiving portion 3b.

With the above configuration, the joint holder 11
The elastic holding portion 11b of the joint holder 1 can sufficiently respond to this displacement due to its elasticity.
1 and the locking protrusion 9 will not come off, and therefore the expansion joint cover 3
It can always be held on the support part 2b of the mizukiri kasagi 2.

Next, a water stop plate fitting groove 2c is integrally formed at the lower end of the support portion 2b, and a water stop plate 4 made of an elastic material of synthetic rubber or synthetic resin is inserted into the water stop plate fitting groove 2c on both sides. The end expansion protrusion 4a is fitted and held, so that the water stop plate 4 is stretched in the space α between the two rising structures, and rainwater that has entered from the back side of the expansion joint cover 3 is prevented. etc. and guide it to the drain at the end. The opening of the fitting groove 2c of the waterstop plate 4 may be oriented horizontally as shown on the right side of FIG. 2, or downward as shown on the left side of the figure.

With the above-described configuration, the Mizukiri Kasagi main body 2a is attached to the upright structures a and a' via the Kasagi holder 1, so that air can circulate between the Kasagi main body 2a and the upright structures a and a'. An open space S having a width of 100 mm is formed into which outside air can be blown. On the other hand, the lower end of the support part 2b and the rising structure a,
The end of the water stop plate 4 is pressed between the support part 2 and a'.
The space between the lower end of b and the rising structures a and a' is sealed. That is, in the example on the left side as viewed in FIG. 2, the end of the water stop plate 4 has a thick wall portion 4b at the bottom of the fitting expansion protrusion 4a that is fitted into the water stop plate fitting groove 2c as shown in FIG. is formed. The thick part 4b is interposed between the fitting groove 2c and the upper surfaces of the upright structures a and a', but at this time, the thick part 4b is inserted into the locking protrusion 1c.
The distance between the lower end of the fitting groove 2c of the support part 2b and the rising structures a, a' is thicker than β, so the thick part 4b is thicker than the fitting groove 2c and the rising structures a, a'. Since they are pressed into close contact with each other, the gap 〓β is completely sealed. Therefore, the air that has entered the space S formed between the base of the Kasagi main body 2a and the upright structures a and a' remains in the space S and does not move. That is, even if wind and rain blow in from the gap _S1 , the air pressure in the internal retention space S acts in the same way as the cushion and increases depending on the blowing pressure at that time, and immediately becomes equal to the blowing pressure. Similarly, if the blowing pressure decreases, the internal pressure of the space S also decreases. In a state of equal pressure, since air does not move, wind and rain will not enter into the space 〓α between the rising structures a and a'.

As shown in the example on the right side of FIG.
It may be formed separately from the swollen protrusion 4a, or it may be formed integrally with the swollen protrusion 4a, as in the example on the left side of the drawing and the example in FIG. The same applies to the following examples.

Figure 4 shows an example of a wind and rain prevention device installed in another expansion joint device.
One standing structure a is a rising structure such as a parapet, while the other building structure b is a wall frame.

A Kasagi holder 13 is fixed to the top end of the rising structure a, as in the example shown in FIG. has been done.

A support part 14c of the expansion joint cover 17 is provided upright between the top ends of the rising structure a and the end on the α side, and one end of the cap body 14a is connected to the intermediate part of the support part 14c. A locking piece 14b is formed at the other end of the cap body 14a, thereby forming a drain cap 14. Further, a locking portion 14d is formed at the lower end of the locking piece 14b, and a locking groove 14e and a water stop plate fitting groove portion 14g are formed at the lower end of the support portion 14c.

The Mizukiri Kasagi 14 locks the locking groove 14e with the locking protrusion 13b of the Kasagi holder 13, and also locks the locking portion 14d with the bent locking piece 13c of the Kasagi holder 13.
It is fixed on 3. In addition, 15 is a locking uneven|corrugated strip|line.

Furthermore, a locking protrusion 9 and an airtight material fitting groove 8 are formed on the expansion joint cover support portion 14c.

Next, on the other building structure b, an elongated expansion joint cover support member 16 is provided opposite to the expansion joint cover support section. This support member 16
is provided with an engaging protrusion 16a at the upper end, and a support portion 16d is formed extending from the lower end toward the α side, and a locking protrusion 16b is formed at the tip thereof.
Furthermore, a water stop plate fitting groove 16 is provided at the lower end of the support portion 16d.
c is formed. The locking protrusion 9 of the water cutter cap 14 and the locking protrusion 16b of the support member 16 are opposed to each other. The same joint holder 11 as in the example shown in FIG. 2 is attached to these locking protrusions 9, 16b.
The joint holder 11 is held by locking the open end of the W-shaped elastic holding part 11b.
A long expansion joint cover 17 is fitted over the top.

The cover body of the expansion joint cover 17 is bent into a cover part 17a for one rising structure a and a cover part 17b for the other building structure b, and the back side of the tip of the latter cover part 17b is bent. A weather strip 18 is fitted, and a downward engaging protrusion 19 is provided at the bottom of the weather strip 18.
is formed. A locking portion 20 is formed on the back side of the bent tip of the former cover portion 17a, and the locking portion 20 and the tip of the locking piece formed below the joint portion of both the covers 17a and 17b is locked. 21 and the joint holder 11 in the same manner as the example in FIG.
By locking the locking pieces 11a, 11a at both ends in a resilient manner, the expansion joint
The cover 17 is held by the joint holder 11. At this time, the weather strip 18 of the cover portion 17b comes into contact with the wall surface of the building structure, and the engaging protrusion 19 contacts the engaging protrusion 16a of the support member 16.
engage with. An airtight material 22 is inserted into the engaging portions of both the engaging protrusions 19 and 16a.

The water stop plate 4 is installed in the same manner as shown in Fig. 2, and the water cutter cap 14 is
The fitting groove 14g of the support member 16 and the fitting groove 16c of the support member 16
By being fitted and held by the structures a and b, the structure is stretched within the space α between the two structures a and b.

Incidentally, as in FIG. 2, the side end portion of the water stop plate 4 is pressed into contact between the support portion 14c and the upright structure a, and during this time the end portion on the α side is sealed.

With the above configuration, the air in the space S between the Mizukiri Kasagi 14 and the rising structure a stays without moving,
Therefore, the inside of this retention space S is always kept at the same pressure as the blowing pressure of wind and rain from the outside, and wind and rain are prevented from penetrating deep inside the space S.

Next, FIG. 5 shows still another example of a wind and rain blow-in prevention device configured in an expansion joint, in which a cap holder 24 and a drain cap are placed in a divided manner on a rising structure a' such as a parapet. This is an example of a configuration.

A locking groove 27 is formed at the upper edge of the support portion 25c of the expansion joint cover support member 25. The draining cap 26 is integrally connected to the support portion 25c by fitting the insertion locking portion 26c at the end on the α side into the locking groove 27.

In the Kasagi holder 24, a connecting part 24b' of a holding piece 24b corresponding to an L-shaped locking protrusion is fitted into one end of the rectangular tubular connecting body 24a, while the connecting part 24b'
One end 24b' of a bent locking piece 24b is inserted and connected to the other end, and the holding piece 24b and the connecting body 24a are screwed and fixed onto the upright structure a'. In this case, the connecting body 24a can be cut to adjust the length to an appropriate length according to the width of the rising structure a'.

Next, a water stop plate fitting groove 2 is provided at the lower end of the support portion 25c.
5b, and an airtight material fitting groove 8 and a locking protrusion 9 are formed at the upper end. The same joint holder 11 as in the previous example is secured to the locking protrusion 9, and the expansion joint cover 28 is secured to the locking protrusion 9.
is held.

The water stop plate 4 has a swollen protrusion 4a at its end that is connected to the support portion 2.
By being fitted and held in the fitting groove 25b of 5c, it is pressed into contact between the support portion 25c and the rising structure a', thereby sealing this portion.

Therefore, even in the above configuration, Mizukiri Kasagi 2
6 is installed on the upright structure a' via the cap holder 24, a space S is formed between the draining cap 26 that is continuous with the support member 25 and the upright structure a', into which wind and rain can blow. Ru. However, water stop plate 4
The thick portion 4b is pressed onto the upright structure a', and the space between the support member 25 and the upright structure a' is hermetically sealed. Therefore, even if a space _S1 is formed between the Mizukiri Kasagi 24 and the standing structure a', the space S becomes a stagnation space where air does not move. Department S ₁
Even when wind and rain blow in, the air remaining inside acts as a kind of cushioning material, and the internal pressure is always equal to the blowing pressure, so wind and rain cannot penetrate deep into the space.

In addition, FIG. 6 shows an example in which the above-mentioned wind and rain prevention device is applied to a draining cap 29 that is attached independently to the top end of a protruding wall b' in a case where one side of the wall frame b of a building protrudes laterally. This is an example of a case in which a Kasagi holder 1' having substantially the same configuration as the example shown in FIG. It is locked.

The Mizukiri Kasagi 29 is long, and one end of the Kasagi main body 29a is formed parallel to the wall surface, and elastic members 3 are attached to both the upper and lower ends of the Kasagi main body 29a.
In addition to forming fitting grooves 29d and 29c into which 0' and 30 are fitted, locking portions 29b and 29c are formed at the opposite end.
29b', and similarly to the illustrated example, the locking parts 29b' and 29b are elastically locked and fixed to the locking parts 1b' and 1c' of the Kasagi holder 1, respectively. .

At the lower end of the draining cap 29, an elastic member 30 fitted into the fitting groove 29c is pressed onto the top end of the protruding wall b'. Therefore, the inside of the space S becomes a space where air accumulates, and the pressure is always equal to the pressure of wind and rain blowing in from the outside, so that wind and rain are prevented from blowing into the space S.

(Effects of the invention) As explained in detail above, according to the invention,
Since the cap holder is disposed between the Mizukiri Kasagi and the top end of the standing structure, a space is formed that opens at the end of the Mizukiri Kasagi opposite to the space between the structures. However, one end edge of the water stop plate is fitted into the lower end of the support part of the expansion joint cover that is erected on the above-mentioned side of the top end of the rising structure, and the water stop plate is pressed against the lower end of the support part.
For this reason, the end of the space on the side opposite to the space is sealed, and the space is configured as a retention space in which air does not move and circulate. Therefore, even if wind and rain try to blow in from between the other ends, the internal pressure of the space will be higher if the blowing pressure of the wind and rain is higher, and lower accordingly if it is lower, so that the internal pressure of the space is always equal. Infiltration of wind and rain is well prevented. In addition, the other end edge of the water stop plate is fitted into the water stop plate fitting groove formed at the lower end of the support part of the other building structure for the rising structure, and the support part and the other side of the water stop plate are fitted. Since the building structure is in pressure contact with the building structure, the other building structure side is also well sealed.

Therefore, although the structure of the present invention is extremely simple and the construction is easy, it can effectively prevent wind and rain from blowing in, and has a very large practical effect.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of a conventional expansion joint, Fig. 2 is a longitudinal cross-sectional view of an expansion joint equipped with a wind and rain prevention device according to the present invention, and Fig. 3 is a vertical cross-sectional view of a conventional expansion joint. 4 and 5 are longitudinal cross-sectional views of other examples of the above-mentioned wind and rain blow-in prevention device, and Fig. 6 shows a state diagram of the above-mentioned wind and rain blow-in prevention device in a separately provided draining cap. It is a sectional view of an example of application. Code A...Expansion joint, S
... Space, 1, 13, 24 ... Kasagi holder, 1
b, 13c, 24b...Locking piece, 2, 14, 2
6, 29...Mizukiri Kasagi, 2b, 14c, 25c...
...Expansion joint cover support part, 2a, 14a...Kasagi body, 2c, 14g,
25b... Water stop plate fitting groove, 3, 17, 28... Expansion joint cover, 4... Water stop plate.

Claims (1)

[Scope of utility model registration request] An expansion joint cover is erected between two building structures that face each other in close proximity and at least one of which is an upright structure erected on top of a building to cover the gap between these building structures. In the expansion joint, a support part for supporting one side of the expansion joint cover is erected on the side between the top end of the rising structure and the support part that supports one side of the expansion joint cover. The locking pieces of the Kasagi holder, which are arranged and fixed at regular intervals along the longitudinal direction of the top end, protrude diagonally downward from the end opposite to the spacer, and the expansion holder is placed on the Kasagi holder. - Arrange the above-mentioned water-cutting cap below the joint cover, extend the end of the water-cutting cap on the side opposite to the above-mentioned support part, and connect the end of the water-cutting cap on the side opposite to the above-mentioned space to the above-mentioned It is fixed by being locked to the stopper, and a water stop plate fitting groove is integrally formed at the lower end of the support part, and the support part is made of an elastic material and is disposed within the gap between the structures. One side edge of the water stop plate is fitted into the water stop plate fitting groove, and is pressed between the lower end of the support portion and the rising structure to connect the water cutter cap and the rising structure. While sealing the space between the spaces, on the opposite side of the seal between the space and the top end, an open space is formed between the mizukiri kasagi and the rising structure. , Fit the other side edge of the water stop plate into the water stop plate fitting groove formed at the lower end of the expansion joint cover support part of the other building structure, and the other side edge is pressed into contact between the supporting part of the other building structure and the other building structure.
Joint's wind and rain prevention device.