JP6899396B2 - Coupure gate - Google Patents

Description

The present invention relates to an undulating coupure gate in which the door body falls down to form a road surface in normal times, and the door body stands up to block water in an emergency when the water surface is higher than the road surface.

The undulating coupure gate has the advantage of having a relatively simple structure that undulates around the base end side of the door body as the turning center. In particular, in the form in which the door body stands up due to the buoyancy from water, the door body automatically stands up in an emergency, so that no operator operation is required. For this reason, such undulating coupure gates are attracting attention in countries with high awareness of disaster prevention.

Japanese Patent Application Laid-Open No. 2013-238991

Generally, in an undulating coupure gate, a structure is adopted in which a groove formed on the base end side of the door body when the door body stands up becomes narrower due to the standing of the door body. Since the door body is exposed to the open due to the characteristic of the coupure gate that the door body constitutes the road surface in normal times, foreign matter such as gravel may enter the groove.

Even when a foreign substance that is normally expected enters the groove, the door body receives a buoyancy and has a strong force to stand up, and it has not been confirmed that the standing up is hindered by the foreign matter getting caught in the groove. However, the coupure gate is required to operate reliably (the door body stands up) in an emergency without the condition being confirmed by operating on a daily basis. For this reason, measures for more reliable operation are always required.

Therefore, an object of the present invention is to provide a coupure gate capable of more reliably standing up the door body by making it difficult for foreign matter to be caught in the groove.

In order to solve the above-mentioned problems, the coupure gate according to the first invention has a door body that undulates by rotating around an undulating axis and a door body that undulates.
A floor plate arranged adjacent to the undulating axis side of the laid-down door body,
A watertight material provided over the door body and the floor plate,
A groove formed between the watertight material, an end surface of the door body existing above the watertight material, and an end surface of the floor plate existing above the watertight material.
The groove portion is filled with the end face of the door body forming the groove portion and the filling material fixed to the end face of the floor plate.
When the filling material has elasticity and the groove portion becomes narrow due to the standing of the door body, the filling material rises higher than the lower end of the upper end surface of the door body and the upper end surface of the floor plate. ..

Further, the coupure gate according to the second invention has fluidity when the filling material in the coupure gate according to the first invention is filled in the groove portion, and the end face and the floor plate change with time. The exposed surface solidifies as it adheres to the end face.

Further, the coupure gate according to the third invention is the coupure gate according to the first or second invention, in a state where the door body is laid down, and the height of the padding material with respect to the depth of the groove portion. ratio is less than and 85% at 65% or more.

In addition, the coupure gate according to the fourth invention is the coupure gate according to the first or second invention in which the groove portion is wider toward the upper side with the door body lying down.

Further, the landlock gate according to the fifth invention is the landlock gate according to the fourth invention, in a state where the door body is laid down, the angle between the end surface of the door body and the horizontal plane, and the end surface of the floor plate. The angle between the door and the horizontal plane is 40 ° or more and 60 ° or less.
With the door body lying down, the relationship between the distance δ between the end face of the door body and the end face of the floor plate at the bottom of the groove and the depth D of the groove is D × 0.1 ≦ δ ≦ D. It is × 0.5.

According to the coupure gate, the filling material filled in the groove portion rises more than the lower end of the end face of the door body and the upper end of the end face of the floor plate when the door body stands up, so that foreign matter is less likely to be caught in the groove portion. As a result, the door body can be erected more reliably.

It is sectional drawing of the coupure gate according to the embodiment of the present invention seen from the center of the span in normal time to the right. It is a cross-sectional view seen to the right from the center of the span in an emergency of the coupure gate. FIG. 1 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a perspective view showing a connection portion between the collapsed door body of the coupure gate and the floor plate structure in FIG. 1. FIG. 2 is a perspective view showing a connection portion between an upright door body of the coupure gate and a floor plate structure in FIG. 2. It is an enlarged cross-sectional view which shows the filling material and its surroundings at the time of lying down of the door body. It is an enlarged cross-sectional view which shows the filling material and its surroundings at the time of standing up of the door body. It is an enlarged cross-sectional view which shows the state which the tire has passed over the groove part at the time of the downturn of the door body. It is an enlarged cross-sectional view for explaining the function of the same packing material, and shows the time when the door body is laid down. It is an enlarged cross-sectional view for explaining the function of the same packing material, and shows the time when a door body is standing upright. It is an enlarged cross-sectional view for explaining the function of the same packing material, and shows the time when the door body is completely upright. It is an enlarged cross-sectional view which shows the groove part and its periphery when the standing angle of the door body is made 90 °. It is an enlarged cross-sectional view which shows the groove part and its periphery when the standing angle of the door body is 80 °, and the inclination angle of both the door body side end face and the floor plate side end face is 55 °. It is an enlarged cross-sectional view which shows the groove part and its periphery when the standing angle of the door body is 80 °, and the inclination angle of the door body side end face and the floor plate side end face is 40 ° and 60 °, respectively. It is an enlarged cross-sectional view when the holding plate on the door body side of the coupure gate is thicker than the pressing plate on the floor plate side, and shows the time when the door body is laid down. It is an enlarged cross-sectional view when the holding plate on the door body side of the coupure gate is thicker than the pressing plate on the floor plate side, and shows the standing time of the door body. It is an enlarged cross-sectional view when the holding plate on the door body side of the coupure gate is thinner than the holding plate on the floor plate side, and shows the time when the door body is laid down. It is an enlarged cross-sectional view when the door body side presser plate of the coupure gate is thinner than the floor plate side presser plate, and shows the time when the door body stands up.

Hereinafter, the coupure gate according to the embodiment of the present invention will be described with reference to the drawings.

This coupure gate is installed on the road surface to block water that is about to flow into the road surface due to a storm surge or flood. As shown in FIG. 1, in normal times, that is, when the water surface S does not exceed the road surface R, the door body 2 included in the coupure gate 1 constitutes the road surface R while remaining lying down. On the other hand, as shown in FIG. 2, in an emergency, that is, when the water surface S rises to exceed the road surface R, the door body 2 provided in the coupure gate 1 reaches the water level until the upper end thereof becomes higher than the water surface S. By following and standing up, the water is blocked. Due to this damming, the road surface R on the water side (left side in FIG. 2) from the coupure gate 1 is submerged, but the road surface R on the land side (right side in FIG. 2) from the coupure gate 1 is not submerged. 1 and 2 are cross-sectional views of the coupure gate 1 as viewed from the center of the span to the right. Therefore, the coupure gate 1 naturally has a leftward configuration not shown in FIGS. 1 and 2, and the leftward configuration is the same as the rightward configuration.

In general, the coupure gate where the door body undulates (stands up and falls) has an opening / closing device type that uses the power of hydraulic pressure, pneumatic pressure, hoisting machine, etc., or a floating body type that uses the buoyancy of the door body itself. There is also. Floating coupure gates have the advantage that when water flows into them, that is, in an emergency, the door body stands up with basically no power due to buoyancy. The coupure gate 1 according to the present embodiment is not limited to the floating type, but will be described below as a floating type for the sake of simplicity.

As shown in FIGS. 1 to 3, the coupure gate 1 is installed on the base B. The base B is arranged so that its upper surface (receiving surface) is horizontal, and the portion below the upper surface (receiving surface) is embedded in the foundation concrete C. Further, the coupure gate 1 includes a door body 2, a floor plate structure 3, and a side door stop 4 installed on the base B. As shown in FIG. 1, on the water side of the fallen door body 2, equipment is provided on the foundation concrete C for water conduction including grating G.

The door body 2 is supported by a rotation bearing (not shown) so that its base end side serves as a center of rotation for undulation (hereinafter, referred to as an undulation axis). Further, the door body 2 includes a skin plate 21 that directly receives pressure (water pressure) from damming water, a girder structure 25 that reinforces the skin plate 21, a cover plate 22 that becomes a road surface R in normal times, and the skin. It has a buoyant body 23 filled between the plate 21 and the cover plate 22, and a watertight structure 26 for preventing water leakage in an emergency.

The girder structure 25 has an upper horizontal girder 51 and a lower horizontal girder 52 shown in FIGS. 1 and 2, left and right side vertical girders 54 shown in FIG. 3, and an intermediate vertical girder 53, if necessary. As shown in FIGS. 1 and 2, the upper horizontal girder 51 is configured to generate a buoyancy to the extent that the door body 2 basically stands up without power when submerged. The lower horizontal girder 52 includes an end portion of the cover plate 22 on the land side and a part of the watertight structure 26 (specifically, a portion 62 for ensuring watertightness between the door body 2 and the floor plate structure 3). Is fixed. As shown in FIG. 3, the left and right side vertical girders 54 have another part of the watertight structure 26 (specifically, a portion 64 for ensuring watertightness between the door body 2 and the side door stop 4). Is fixed. Further, pins 29 protruding toward the side door stop 4 are fixed to the left and right side vertical girders 54.

The watertight structure 26 is a three-way watertight structure having a lower watertight rubber 62 shown in FIGS. 1 and 2 and a side watertight rubber 64 shown in FIG. As the watertight structure 26, the lower watertight rubber 62 shown in FIGS. 1 and 2 is fixed to the lower horizontal girder 52 and the floor plate structure 3 by the door body side pressing plate 28 and the floor plate side pressing plate 38, respectively, and FIG. The side watertight rubber 64 shown in 1 is fixed to the side vertical girder 54 by the side holding plate 24.

As shown in FIG. 3, the side door stops 4 are arranged on the left and right sides of the door body 2 and are continuous with the waterproof wall W. In these side door contact 4, the surface on the door body 2 side is the side door contact surface 41, and the inside is a space. The side door contact surface 41 is pressed against the side watertight rubber 64 to ensure watertightness between the door body 2 and the side door contact 4. Further, as shown in FIGS. 1 and 2, an arc groove 49 through which the pin 29 passes is formed on the side door contact surface 41. These arc grooves 49 allow the pin 29 to pass through when the door body 2 undulates. As shown in FIG. 2, when the pin 29 is passed through these arc grooves 49 and the door body 2 is completely upright (hereinafter, referred to as standing up of the door body 2), the door body 2 and the horizontal plane are horizontal. The angle α with and from is the standing angle α of the door body 2.

Here, the connection portion between the door body 2 and the floor plate structure 3 will be described in detail with reference to FIGS. 4 and 5.

As shown in FIG. 4, the lower horizontal girder 52 has a web 56 welded to the skin plate 21 and a flange 57 to which the cover plate 22 and the lower watertight rubber 62 are fixed. The flange 57 is fixed by sandwiching the lower watertight rubber 62 between the door body side pressing plates 28 and using bolts 2B. Since the door body side pressing plate 28 is a constituent member of the door body 2, the end surface of the door body side pressing plate 28 is also the end surface of the door body 2.

The floor plate structure 3 has a lower plate 35 fixed to the base B, an upper plate 37 to which the lower watertight rubber 62 is fixed, and a rising plate 36 connecting the lower plate 35 and the upper plate 37. .. Foundation concrete C is cast in the space formed by the upper plate 37, the lower plate 35, and the rising plate 36. The upper plate 37 is fixed by sandwiching the lower watertight rubber 62 between the floor plate side pressing plates 38 and using bolts 3B. The foundation concrete C is also cast on the land side of the upper plate 37, the lower watertight rubber 62, and the floor plate side pressing plate 38. The floor plate side pressing plate 38 can be said to be a floor plate because it constitutes the road surface R regardless of the undulations of the door body 2. Therefore, the end surface of the floor plate side pressing plate 38 is also the end surface of the floor plate.

A groove 7 is formed between the land-side end surface 72 of the door body-side presser plate 28 and the water-side end surface 73 of the floor plate-side presser plate 38 over the span direction (left-right direction) of the door body 2. The groove 7 has a land-side end surface 72 of the door body-side presser plate 28 (hereinafter referred to as a door body-side end surface 72) and a water-side end surface 73 of the floor plate-side presser plate 38 (hereinafter referred to as a floor plate-side end surface 73). The fixed, elastic filling material 8 is filled. As shown in FIG. 5, the groove portion 7 becomes narrower when the door body 2 stands up. Here, since the filling material 8 has elasticity, it rises upward, which is a space where it can escape, by the amount that the groove portion 7 is narrowed. With this swelling, the amount and position of the filling material 8 to be filled in the groove portion 7 are determined so as to be higher than the lower of the upper end of the door body side end surface 72 and the upper end of the floor plate side end surface 73.

Hereinafter, the filling material 8 and its surroundings, which are the gist of the present invention, will be described in detail with reference to FIGS. 6 to 8.

As shown in FIG. 6, when the door body 2 is laid down, for example, the positions of the upper surface and the lower surface of the door body side pressing plate 28 and the floor plate side pressing plate 38 are substantially the same. That is, the door body side pressing plate 28 and the floor plate side pressing plate 38 have substantially the same thickness T1 and T2 and height. Therefore, the depth D of the groove portion 7 corresponds to the thicknesses T1 and T2 of the door body side pressing plate 28 and the floor plate side pressing plate 38. When the door body 2 is laid down, the door body side end surface 72 is inclined toward the water side toward the upper side, and the floor plate side end surface 73 is inclined toward the land side toward the upper side. That is, when the door body 2 is laid down, the door body side end surface 72 and the floor plate side end surface 73 are inclined so as to be separated from each other toward the upper side, in other words, the groove portion 7 is wider toward the upper side. Therefore, when the door body 2 is laid down, the door body side end surface 72 and the floor plate side end surface 73 have a minimum distance δ at their respective lower ends and a maximum distance W at their respective upper ends. The inclination angles θ1 and θ2 of the door body side end surface 72 and the floor plate side end surface 73 do not interfere with each other when the door body 2 stands up (see FIG. 7), and the door body side end surface 72 and the floor plate side end surface 73 do not interfere with each other and are jammed. It is designed so that the material 8 is not damaged and the tire T of the vehicle passing over the groove 7 does not come into contact with the filling material 8 when the door body 2 is laid down (see FIG. 8). The groove portion 7 is narrowed by standing up the door body 2, and as an example thereof, the groove portion 7 is arranged above the undulating axis 20 as shown in FIGS. 6 to 8. If the undulating shaft center 20 is located inside the lower watertight rubber 62, the lower watertight rubber 62 is not excessively expanded and contracted even if the door body 2 undulates, which is preferable. The height h of the filling material 8 when the door body 2 is laid down (see FIG. 6) is such that the upper end a of the filling material 8 when the door body 2 is upright is the upper end surface of the door body side end surface 72 and the floor plate side end surface 73. It is designed to be higher than the lower b of the upper end of the door (see FIG. 7). Further, as shown in FIGS. 6 to 8, the filling material 8 comes into contact with the lower watertight rubber 62 at the bottom of the groove 7 in order to assist the lower watertight rubber 62 to ensure water stoppage. Alternatively, it is preferably fixed.

The filling material 8 has fluidity when it is filled in the groove portion 7, and is fixed to the door body side end surface 72 and the floor plate side end surface 73 due to aging, and the exposed surface is solidified. Here, having fluidity means that it is in a liquid or gel state. Since the filling material 8 has fluidity when it is filled in the groove portion 7, the filling operation becomes easy. Further, the filling material 8 is fixed to the door body side end surface 72 and the floor plate side end surface 73 due to aging, so that the shape of the filling material 8 is formed by a trowel or the like after the filling and before the fixing. It becomes possible to prepare, and as a result, the filling operation becomes easy. Further, since the exposed surface of the packing material 8 is solidified due to the change with time, even if a heavy foreign matter enters the groove portion 7, the foreign matter does not sink into the surface.

As the filling material 8, for example, a material specified in JIS (Japanese Industrial Standards) A5758 is adopted. In particular, the filling material 8 includes "Silicone Sealant 8060 Pro (trade name)" manufactured by Cemedine Co., Ltd. and "Silicone" manufactured by Sekisui Fuller Co., Ltd., which are silicone sealants generally used as building sealants. "JX (trade name)" and "Sealant 45 (trade name)" manufactured by Shin-Etsu Chemical Co., Ltd. are optimal. The packing material 8 is not only silicone-based such as silicone sealant, but also polyisobutylene-based. It may be modified silicone type, polysulfide type, acrylic urethane type, polyurethane type, or acrylic type. The filling material 8 easily follows the shape change of the groove portion 7 due to the undulations of the door body 2 (low at the high elastic limit). It is preferable that the material has excellent elasticity), adhesiveness and water-stopping property, and also has excellent durability and weather resistance.

Hereinafter, the function of the filling material 8 accompanying the standing of the door body 2 will be described with reference to FIGS. 9 to 11.

As shown in FIG. 9, it is assumed that foreign matter X enters the groove 7 when the door body 2 is laid down. The foreign matter X is stationary on the filling material 8 filled in the groove 7. Next, as shown in FIG. 10, as the door body 2 stands up, the filling material 8 is fixed to the door body side end surface 72 and the floor plate side end surface 73 and has elasticity, so that the groove portion 7 becomes narrower. The filling material 8 rises above the groove 7 by the amount. At this time, since the surface of the filling material 8 has already solidified, even if the foreign matter X is heavy, it does not sink to the surface of the filling material 8. Then, as shown in FIG. 11, when the door body 2 is erected, the upper end a of the filling material 8 rises above the upper end of the door body side end surface 72 and the upper end of the floor plate side end surface 73, whichever is lower b. Foreign matter X is not bitten. Depending on the size of the foreign matter X, the raised filling material 8 discharges the foreign matter X from the groove 7 to the upper surface of the floor plate side pressing plate 38. Since the filling material 8 is fixed to the door body side end surface 72 and the floor plate side end surface 73, it does not peel off from the groove portion 7 when the door body 2 stands up.

As described above, according to the coupure gate 1, the filling material 8 filled in the groove portion 7 rises higher than the lower b of the upper end of the door body side end surface 72 and the upper end of the floor plate side end surface 73 when the door body 2 stands up. , Foreign matter X is less likely to be caught in the groove portion 7, and as a result, the door body 2 can be erected more reliably.

Further, since the filling material 8 has fluidity when filled in the groove portion 7 and is fixed to the door body side end surface 72 and the floor plate side end surface 73 due to aging, the filling work becomes easy, and as a result, the filling work becomes easy. As a result, the manufacturing period of the coupure gate 1 can be shortened. Further, since the exposed surface of the packing material 8 is solidified due to the change with time, the foreign matter X does not sink into the surface, so that the foreign matter X is less likely to be bitten into the groove portion 7, and as a result, the foreign matter X is more reliably bitten. The door body 2 can be erected.

In addition, when the door body 2 is laid down, the groove portion 7 is wider toward the upper side, so that the door body side end surface 72 and the floor plate side end surface 73 can be designed to be close to each other, so that the groove portion 7 becomes even narrower. Therefore, it is more difficult for the foreign matter X to be caught in the groove portion 7, and as a result, the door body 2 can be more reliably erected.

Hereinafter, experiments (1) to (4) have been carried out for Examples 1 to 3 in which the above-described embodiments are more specific, and these will be described in detail below. The configurations of Examples 1 to 3 not described below are the same as those of the above-described embodiment. Here, in the first to third embodiments, as a common point, the filling material 8 is a silicone sealant, the inclination angles θ1 and θ2 of the door body side end surface 72 and the floor plate side end surface 73 are both set to 45 °, and the door body side. The thicknesses T1 and T2 (hereinafter abbreviated as plate thicknesses T1 and T2) of the presser plate 28 and the floor plate side presser plate 38 are both 8 mm, and the minimum distance δ between the door body side end surface 72 and the floor plate side end surface 73 is 6 mm. The standing angle α of the door body 2 was set to 70 °. Further, in the first to third embodiments, the height h of the filling material 8 is different as a difference. Specifically, the height h of the packing material 8 is 4 mm in Example 1 (50% with respect to the depth D of the groove 7) and 6 mm in Example 2 (75 with respect to the depth D of the groove 7). %) And 8 mm (100% with respect to the depth D of the groove 7) in Example 3. The specific contents of the experiments (1) to (4) are as follows.
Experiment (1): Whether or not the tire T of the bicycle comes into contact with the packing material 8 by passing the bicycle over the groove 7.
Experiment (2): Whether or not the filling material 8 is peeled off from the door body side end surface 72 or the floor plate side end surface 73 due to the undulations of the door body 2.
Experiment (3): Whether or not water leaks from the filling material 8 by applying water pressure to the door body 2 three times when the door body 2 stands up.
Experiment (4): Is the foreign matter X arranged on the filling material 8 when the door body 2 is laid down bitten into the groove 7 when the door body 2 is upright? The foreign matter X was gravel having an outer diameter of 2 mm, gravel having an outer diameter of 4 mm, and metal round bars (four each of φ3 × 100 mm and φ6 × 100 mm).

As a result of the experiment (1), the bicycle tire T sank about 1.5 mm from the upper surface of the door body side pressing plate 28 and the floor plate side pressing plate 38 into the groove portion 7, but did not come into contact with the filling material 8. As a result of the experiment (2), the filling material 8 did not peel off from the door body side end surface 72 and the floor plate side end surface 73 after about 10 undulations. As a result of the experiment (3), there was no water leakage from the packing material 8, and the water blocking state was good. As a result of the experiment (4), the metal round bars having a diameter of 3 × 100 mm and a diameter of 6 × 100 mm were bitten into the groove portion 7 due to the standing of the door body 2, but gravel having an outer diameters of 2 mm and 4 mm was not bitten. It should be noted that the biting of the metal round bar into the groove 7 did not hinder the standing of the door body 2. Therefore, the door body 2 could be erected more reliably.

As a result of the experiment (1), the bicycle tire T sank about 1.5 mm from the upper surface of the door body side pressing plate 28 and the floor plate side pressing plate 38 into the groove portion 7, but did not come into contact with the filling material 8. As a result of the experiment (2), the filling material 8 did not peel off from the door body side end surface 72 and the floor plate side end surface 73 after about 10 undulations. As a result of the experiment (3), there was no water leakage from the packing material 8, and the water blocking state was good. As a result of the experiment (4), no foreign matter X was caught in the groove 7 due to the standing of the door body 2. Therefore, the door body 2 could be erected more reliably.

As a result of the experiment (1), the tire T of the bicycle came into contact with the filling material 8 in an attempt to sink into the groove 7 from the upper surfaces of the door body side pressing plate 28 and the floor plate side pressing plate 38. As a result of the experiment (2), the filling material 8 did not peel off from the door body side end surface 72 and the floor plate side end surface 73 after about 10 undulations. As a result of the experiment (3), there was no water leakage from the packing material 8, and the water blocking state was good. As a result of the experiment (4), no foreign matter X was caught in the groove 7 due to the standing of the door body 2. Therefore, the door body 2 could be erected more reliably.

The table summarizing the results of the experiments (1) to (4) for Examples 1 to 3 is as follows.

As described above, in each of the first to third embodiments, the filling material 8 is ensured to have durability in undulations of about 10 times and water stoppage assisted by the lower watertight rubber 62. It has been shown. Further, it was shown that in the first embodiment, the door body 2 was erected more reliably, and in the second and third embodiments, the door body 2 was erected more reliably. Further, in Examples 1 and 2, it was shown that non-contact with the tire T was ensured.

Further, in the second embodiment, the ratio of the height h of the filling material 8 to the depth D of the groove portion 7 is 75%, but even if the ratio is 65% or more and 85% or less. , The same effect as that of the second embodiment is obtained.

Next, from the first embodiment in which the metal round bars of φ3 and φ6 are bitten into the groove portion 7, the ratio of the height h of the filling material 8 to the depth D of the groove portion 7 is not changed, and other than that. The experiments (1) to (4) have been carried out for Examples 4 and 5 in which the parameters are changed, and these will be described in detail below. In addition, also in these Example 4 and Example 5, the configuration not described below is the same configuration as the above-described embodiment. Here, in the first, fourth, and fifth embodiments, as a common point, the filling material 8 is a silicone sealant, and the inclination angles θ1 and θ2 of the door body side end surface 72 and the floor plate side end surface 73 are all 45 °. The standing angle α of the door body 2 was set to 70 °, and the height h of the packing material 8 with respect to the depth D of the groove portion 7 was set to 50%. Further, in the first, fourth, and fifth examples, the plate thicknesses T1 and T2 and the minimum interval δ are different as the differences. Specifically, in the first embodiment, the plate thicknesses T1 and T2 are 8 mm and the minimum interval δ is 6 mm, whereas in the fourth embodiment, the plate thicknesses T1 and T2 are 8 mm and the minimum interval δ is 2 mm. In Example 5, the plate thicknesses T1 and T2 were set to 4 mm, and the minimum interval δ was set to 2 mm.

As a result of the experiment (1), the bicycle tire T sank about 1.5 mm from the upper surface of the door body side pressing plate 28 and the floor plate side pressing plate 38 into the groove portion 7, but did not come into contact with the filling material 8. As a result of the experiment (2), the filling material 8 did not peel off from the door body side end surface 72 and the floor plate side end surface 73 after about 10 undulations. As a result of the experiment (3), there was no water leakage from the packing material 8, and the water blocking state was good. As a result of the experiment (4), no foreign matter X was caught in the groove 7 due to the standing of the door body 2. Therefore, the door body 2 could be erected more reliably.

As a result of the experiment (1), the bicycle tire T sank about 1.0 mm from the upper surface of the door body side pressing plate 28 and the floor plate side pressing plate 38 into the groove portion 7, but did not come into contact with the filling material 8. As a result of the experiment (2), the filling material 8 did not peel off from the door body side end surface 72 and the floor plate side end surface 73 after about 10 undulations. As a result of the experiment (3), there was no water leakage from the packing material 8, and the water blocking state was good. As a result of the experiment (4), no foreign matter X was caught in the groove 7 due to the standing of the door body 2. Therefore, the door body 2 could be erected more reliably.

A table summarizing the results of experiments (1) to (4) for Examples 1, 4 and 5 is as follows.

As described above, in the first, fourth, and fifth embodiments, the filling material 8 has non-contact with the tire T, durability in about 10 undulations, and the lower watertight rubber 62. It was shown that water stoppage was ensured by assisting. Further, from the comparison of Examples 1, 4 and 5, even if the ratio of the height h of the filling material 8 to the depth D of the groove 7 is the same, if the minimum interval δ is small (that is, the groove 7 is It was shown that if it is narrow), it is possible to effectively prevent the foreign matter X from getting caught in the groove 7.

Further, in Examples 1 to 5, the cases where the inclination angles θ1 and θ2 are 45 °, the minimum interval δ is 2 mm or 6 mm, and the depth D of the groove portion 7 is 4 mm or 8 mm are shown. Even if θ1 and θ2 are 40 ° or more and 60 ° or less, and the depth D × 0.1 ≦ the minimum interval δ ≦ the depth D × 0.5 of the groove portion 7, the above-mentioned Examples 1 to 1 The same effect as in Example 5 is obtained.

By the way, in the above-described embodiment and Examples 1 to 5, the inclination angles θ1 and θ2 are both 45 °, and the standing angle α of the door body 2 is 70 °, but the present invention is limited to these. There is no. The inclination angles θ1 and θ2 and the standing angles α of the door body 2 are such that when the door body 2 stands up, the door body side end faces 72 and the floor plate side end faces 73 that are close to each other do not interfere with each other and the packing material 8 is not damaged. All you need is. As an example of such an inclination angle θ1, θ2 and an upright angle α, as shown in FIG. 12, the inclination angles θ1, θ2 of the door body side end surface 72 and the floor plate side end surface 73 are both 45 °, and the door body 2 has an inclination angle θ1, θ2. The standing angle α may be 90 °, and as shown in FIG. 13, the inclination angles θ1 and θ2 of the door body side end surface 72 and the floor plate side end surface 73 may both be 55 °, and the standing angle α of the door body 2 may be 80 °. As shown in FIG. 14, the inclination angle θ1 of the door body side end surface 72 may be 40 °, the inclination angle θ2 of the floor plate side end surface 73 may be 60 °, and the standing angle α of the door body 2 may be 80 °. In FIGS. 12 to 14 (the filling material 8 is not shown), the groove portions 7 are not wide when the door body 2 shown by the virtual line is upright, but they are close to each other by sufficiently providing the minimum distance δ. The door body side end surface 72 and the floor plate side end surface 73 do not interfere with each other, and the filling material 8 is not damaged.

Further, if the groove portion 7 is narrowed by standing up the door body 2, the positional relationship with the undulating axis 20 is not limited. For example, as shown in FIG. 12, the undulating axis 20 may be located at the bottom of the groove 7, and as shown in FIGS. 13 and 14, the undulating axis 20 may be located below the groove 7.

Further, in the above-described embodiment and Examples 1 to 5, the door body side pressing plate 28 and the floor plate side pressing plate 38 have been described as having substantially the same thickness T1, T2 and height. It is not limited to this. For example, FIGS. 15 to 18 show cases where the door body side pressing plate 28 and the floor plate side pressing plate 38 have different thicknesses T1 and T2, and FIGS. 15 and 16 show that the door body side pressing plate 28 is the floor plate side pressing plate 38. It is a case where it is thicker than (T1> T2), and FIGS. 17 and 18 are cases where the door body side pressing plate 28 is thinner than the floor plate side pressing plate 38 (T1 <T2). In either case, as shown in FIGS. 16 and 18, the upper end a of the packing material 8 is lower than the upper end of the door body side end surface 72 and the upper end of the floor plate side end surface 73 when the door body 2 stands up. If the door body 2 is raised, the foreign matter X is less likely to be caught in the groove portion 7, and as a result, the door body 2 can be more reliably raised. Of course, if the upper end a of the filling material 8 rises higher than the upper end of the door body side end surface 72 and the upper end of the floor plate side end surface 73 when the door body 2 stands up, the foreign matter X is less likely to be bitten into the groove portion 7, resulting in The door body 2 can be erected more reliably.

The embodiments and Examples 1 to 5 are exemplary in all respects and are not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims. It should be noted that, among the configurations described in the above-described embodiment and Examples 1 to 5, the configurations other than those described as the first invention in "Means for Solving the Problem" are arbitrary configurations and are appropriate. It can be deleted and changed.

Claims (5)

A door body that undulates by rotating around the undulation axis,
Floor boards arranged next to each other on the undulating axis side of the laid-down door body,
A watertight material provided over the door body and the floor plate,
A groove formed between the watertight material, an end surface of the door body existing above the watertight material, and an end surface of the floor plate existing above the watertight material.
The groove portion is filled with the end face of the door body forming the groove portion and the filling material fixed to the end face of the floor plate.
When the filling material has elasticity and the groove portion becomes narrow due to the door body standing upright, the filling material rises higher than the lower end of the upper end surface of the door body and the upper end surface of the floor plate. A coupure gate characterized by that. The claim is characterized in that the filling material has fluidity when filled in the groove portion, adheres to the end face and the end face of the floor plate due to aging, and the exposed surface solidifies. The coupure gate according to 1. In a state where the door body is laid down, Riku閘according to claim 1 or 2 the ratio of the height of the inter-filling material to the depth of the groove is equal to or less than and 85% in more than 65% Gate. The coupure gate according to claim 1 or 2, wherein the groove portion is wider toward the upper side in a state where the door body is laid down. With the door body lying down, the angle between the end face of the door body and the horizontal plane and the angle between the end face of the floor plate and the horizontal plane are both 40 ° or more and 60 ° or less.
With the door body lying down, the relationship between the distance δ between the end face of the door body and the end face of the floor plate at the bottom of the groove and the depth D of the groove is D × 0.1 ≦ δ ≦ D. The coupure gate according to claim 4, which is × 0.5.

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