JP7263168B2 - gate device - Google Patents

Description

The present invention relates to a gate device capable of stopping a gate at an open position or a closed position.

A sliding gate is sometimes provided at the entrance to the site of a building. A door roller is provided at the bottom of the gate, and the door roller rolls on a rail provided on the ground, so that even a heavy gate can be easily opened and closed manually.

However, when the door rollers are provided at the bottom of the gate as described above, the gate may move unintentionally due to a slight inclination of the installation location, wind, or the like. In this regard, in the gate device disclosed in Patent Document 1 below, a fixing device is provided at the bottom of the gate, and the contact portion of this fixing device comes into contact with the passage surface, thereby fixing the gate at a desired position. there is

JP 2018-17009 A

However, with the conventional technology described above, if a pebble or the like is interposed between the contact portion and the passage surface, the required frictional force cannot be generated between the contact portion and the passage surface, and there is still a possibility that the gate cannot be fixed. be.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a gate device capable of securely fixing a gate.

In order to solve the above-mentioned problems, a gate device according to an aspect of the present invention includes a gate door having a door roller at the bottom thereof, and a door roller provided on the ground, and the door roller being arranged thereon, whereby the gate door can be opened and closed. a rail that guides the gate, a stopper part provided on the gate and perpendicular to the extending direction of the rail, and the stopper part provided on the ground and when the gate is in the closed position or the open position a catch portion that contacts and maintains contact with the stopper portion by magnetic force.

Further, in the gate device according to one aspect of the present invention, one of the stopper portion and the catch portion includes a magnet, and the other includes a metal plate attracted to the magnet.

Further, in the gate device according to the aspect of the present invention, one of the magnet and the metal plate is supported by a base section arranged on the opposite side of the other so as to be movable in the extending direction of the rail. A first spring is provided between the one and the base portion.

Also, in the gate device according to the aspect of the present invention, the end of the first spring is not fixed to one of the magnet and the metal plate, or to the base.

Further, in the gate device according to one aspect of the present invention, one end of a guide shaft extending in the extending direction of the rail is fixed to one of the magnet and the metal plate, and the guide shaft is attached to the base. A second spring is provided between the other end of the guide shaft and the base portion so as to pass through the base portion and the other end thereof is arranged on the side opposite to one of the magnet and the metal plate. be done.

Also, in the gate device according to the aspect of the present invention, the constant of the second spring is smaller than the constant of the first spring.

Further, in the gate device according to one aspect of the present invention, when the gate moves from the open position to the closed position, the front end of the gate approaches the gatepost, and the gatepost moves toward the inside or outside of the site from the front end. A shielding portion is located and overlaps the tip portion when viewed from the passageway.

ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to fix a gate reliably.

It is a figure which shows the installation state of the gate device which concerns on 1st Embodiment. It is a figure which shows the installation state of the gate device which concerns on 1st Embodiment. It is a figure which shows the stopper part and catch part which concern on 1st Embodiment. It is a figure which shows the stopper part and catch part which concern on 1st Embodiment. It is a figure which shows the operation|movement of a stopper part and a catch part. It is a figure which shows the operation|movement of a stopper part and a catch part. It is a figure which shows the operation|movement of a stopper part and a catch part. It is a figure which shows the installation state of the gate device which concerns on 2nd Embodiment. It is a figure which shows the stopper part and catch part which concern on 2nd Embodiment. It is a figure which shows the stopper part and catch part which concern on 3rd Embodiment. It is a figure which shows the stopper part and catch part which concern on 3rd Embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention are described below with reference to the drawings. Note that the present disclosure is merely an example, and those skilled in the art are naturally included in the scope of the present invention for appropriate modifications that can be easily conceived while maintaining the gist of the invention. In addition, in order to make the description clearer, the drawings may schematically show the width, thickness, shape, etc. of each part compared to the actual embodiment, but this is only an example, and the interpretation of the present invention is not intended. It is not limited. In addition, in this specification and each figure, the same reference numerals may be given to the same elements as those described above with respect to the existing figures, and detailed description thereof may be omitted as appropriate.

1 and 2 are diagrams showing the installed state of the gate device 1 according to the first embodiment. FIG. 1 shows the state of the gate device 1 viewed from the passage in the site, and FIG. 2 shows the state of the gate device 1 viewed from above. A gate device 1 is a rail opening/closing type gate device provided at an entrance to a facility (factory, school, hospital, park, research institute, etc.), and includes a gate 10 and a rail 20 . A gate 10 has a plurality of door rollers 11 at its lower portion, and a rail 20 is provided on the ground such as concrete, cement, mortar, or the like. The rail 20 guides the opening/closing movement of the gate 10 by arranging the door roller 11 of the gate 10 on the rail 20.例文帳に追加The gate 10 is positioned between a closed position A indicated by a solid line and a broken line in FIG. direction).

A gate post 50 and a gate wall 60 positioned apart from the gate post 50 are installed around the gate device 1. - 特許庁In the present disclosure, the end of the gate 10 near the gate post 50 (the left end of the gate 10) is referred to as the front end 12a, and the opposite end (the right end of the gate 10) is referred to as the rear end 12b. Further, the ground that continues inside and outside the site including the entrance/exit of the site where the gate device 1 is arranged is called a passage. The points indicated by C and D in FIG. 2 correspond to a passage within the site and a passage outside the site, respectively. When the gate 10 moves from the open position B to the closed position A, the front end portion 12a approaches the gate post 50. - 特許庁Further, the gate 10 is arranged in front of the gate wall 60 at the open position B as viewed from the passage C in the site.

The gate 10 is a heavy object made of a metal material such as steel, stainless steel, or aluminum. As shown in FIG. 2, the gate 10 has a rectangular frame portion 13 composed of a plurality of bar-shaped frames at its lower portion, and a plurality of door rollers 11 are rotatably mounted under the frame portion 13. . Two rails 20 are arranged on the ground on the front side and the back side of the passage so as to be parallel to each other. The frame on the front side of the frame portion 13 extends along the rails 20 on the front side, and the frame on the back side of the frame portion 13 extends along the rails 20 on the back side.

Further, the gate device 1 includes a stopper portion 30 provided at the lower portion of the gate 10 and perpendicular to the extending direction of the rail 20, and a catch portion 40 provided on the ground. In the example shown in FIG. 1 , the stopper portion 30 is arranged at the lower end of the frame (rear end portion 12 b ) on the rear end side of the frame portion 13 of the gate 10 . In the example shown in FIGS. 1 and 2, the catch portion 40 contacts the stopper portion 30 when the gate 10 is in the closed position A. As shown in FIG. At this time, the catch portion 40 maintains contact with the stopper portion 30 by magnetic force. As a result, it is possible to prevent the gate 10 from opening due to a slight inclination of the rail 20 or wind from the closed state.

3 and 4 are diagrams showing the stopper portion 30 and the catch portion 40. FIG. 3 is an enlarged view of the stopper portion 30 and the catch portion 40 of FIG. 1, and FIG. 4 is a partial cross-sectional view taken along line IV-IV of FIG. Logically, one of the stopper portion and the catch portion should include a magnet, and the other should include a metal plate to be attracted to this magnet. It includes a metal plate 31 that attracts a magnet 41 . Alternatively, the stopper portion 30 may include a magnet and the catch portion 40 may include a metal plate.

The metal plate 31 is fixed to the lower part of the gate 10 by a bolt or the like (not shown), at a position projecting downward from the lower end of the rear end portion 12b in the example shown in FIG. Moreover, as shown in FIG. 3, the catch portion 40 includes a support 42, a guide shaft 43, a nut 44, a first spring 45a, and a second spring 45b. The abutment 42 is fixed to the ground by an anchor (not shown) or the like. In this embodiment, the abutment 42 corresponds to the "base part" described in the claims, and a hole H1 is formed therein through which the rod-shaped guide shaft 43 is inserted.

The guide shaft 43 extends along the extending direction of the rail 20, has a magnet 41 fixed to its rear end (one end), and has a nut 44 attached to its tip (other end). The guide shaft 43 passes through the hole H1 of the support 42, and its tip (the side to which the nut 44 is attached) is arranged on the opposite side of the support 42 from the magnet 41. As shown in FIG. A magnet 41 fixed to a guide shaft 43 is supported by a support 42 arranged on the side opposite to the metal plate 31 .

As shown in FIG. 4, the magnet 41 is disc-shaped, and a guide shaft 43 is fixed at the center position of the circle of the magnet 41 . The metal plate 31 has a flat surface wider than the magnet 41 and is attracted to the magnet 41 on that surface. The inner diameter of the hole H<b>1 formed in the support 42 is larger than the outer diameter of the guide shaft 43 . Therefore, the guide shaft 43 , the magnet 41 fixed thereto, and the nut 44 are relatively movable along the extending direction of the rail 20 with respect to the support 42 .

Furthermore, as shown in FIG. 3, a first spring 45a is provided between the magnet 41 (the rear end of the guide shaft 43) and the support 42, and the support 42 and the nut 44 (the rear end of the guide shaft 43). A second spring 45b is provided between the tips). The first and second springs 45 a and 45 b are coil springs, and both are wound around the guide shaft 43 . Also, the constant (spring constant) of the second spring 45b is smaller than the constant of the first spring 45a. The role of the first and second springs 45a and 45b will be described below.

FIG. 5 shows the first and second springs 45a and 45b when the gate 10 moves from the open position B to the closed position A. As shown in FIG. As shown in FIG. 5, when the gate 10 moves from the open position B to the closed position A, the first spring 45a is pushed and compressed by the surface (surface on the tip side) of the magnet 41 and the support 42. . At this time, a force acts on the first spring 45a to return it to its natural length from the compressed state, so that the impact on the magnet 41 (see impact force F1 in FIG. 5) is alleviated. As a result, when the gate 10 moves to the closed position A and the metal plate 31 hits the magnet 41, the metal plate 31 can be reliably attracted to the magnet 41.例文帳に追加

The second spring 45b has one end fixed to the support base 42 and the other end fixed to the nut 44, respectively. Therefore, when the gate 10 is moved from the open position B to the closed position A, the second spring 45b is stretched by being pulled by the support 42 and the nut 44 at both ends. Thus, similarly to the first spring 45a, the impact when the metal plate 31 hits the magnet 41 can be reduced. That is, both the second spring 45b and the first spring 45a, which has a larger constant than the second spring 45b, contribute to mitigating the impact force F1, so that the metal plate 31 can be attracted to the magnet 41 more reliably. .

After the metal plate 31 is attracted to the magnet 41, the first and second springs 45a and 45b return to their natural lengths, and the catch portion 40 returns to its initial state shown in FIG. As a result, the gate 10 is fixed at the closed position A.

6A and 6B are diagrams showing the first and second springs 45a and 45b when a person moves the gate 10 from the closed position A to the open position B. FIG. As shown in FIG. 6A, when a person moves the gate 10 from the closed position A, the second spring 45b is pushed and compressed by the abutment 42 and the nut 44, and pulls the magnet 41 from the metal plate 31 with a force F3A. occurs. In FIG. 6, F2A indicates the force acting on the gate 10 when the gate 10 is manually moved from a stationary state (when the gate starts to open).

After that, as shown in FIG. 6B, when the person moves the gate 10 further, an inertial force is applied to the gate 10, and the force F2B acting on the gate 10 becomes larger than the force F2A at the start of gate opening. At this time, the compression rate of the second spring 45b becomes larger than that at the start of gate opening, and the force F3B pulling the magnet 41 from the metal plate 31 also becomes larger than the force F3A at the start of gate opening. That is, the force that pulls the magnet 41 from the metal plate 31 is increased at the timing when inertia is added to the motion of the gate 10 . This makes it easier to separate the magnet 41 from the metal plate 31 compared to the case where the magnet 41 is fixed.

Here, one end of the first spring 45 a is not fixed to the magnet 41 or the other end is not fixed to the support base 42 . Therefore, when the gate 10 moves away from the closed position A, the first spring 45a maintains its natural length unlike the second spring 45b. This prevents the force F3A that pulls the magnet 41 attracted to the metal plate 31 from becoming excessively large when the gate starts to open, so that the gate 10 is pulled in the direction opposite to the direction in which the person moves the gate 10. This is to prevent the gate 10 from being difficult to open manually by suppressing the force applied. That is, by pulling the magnet 41 only with the second spring 45b whose constant is smaller than that of the first spring 45a, it is possible to prevent the gate 10 from being difficult to open manually.

After that, when the magnet 41 is separated from the metal plate 31, the second spring 45b returns to its natural length. Thereby, the catch portion 40 returns to the initial state shown in FIG.

As described above, when the gate 10 moves from the open position B to the closed position A and the metal plate 31 hits the magnet 41, the first spring 45a is compressed and the second spring 45b is stretched. At this time, the tip 12a of the gate 10 comes closest to the gate post 50. As shown in FIG. After that, the first and second springs 45a and 45b return to their natural lengths, so that the tip portion 12a is slightly separated from the gate post 50. As shown in FIG. Therefore, as shown in FIGS. 1 and 2, when the gate 10 is positioned at the closed position A, there is a gap G between the tip portion 12a of the gate 10 and the gate post 50. As shown in FIGS. The length of the gap G is the value obtained by subtracting the maximum compressed length from the natural length of the first spring 45a (in other words, the value obtained by subtracting the natural length from the maximum expanded length of the second spring 45b). is designed to slightly exceed the

In order to hide the gap G between the gate 10 and the gatepost 50, the gatepost 50 has a shielding part 51 located inside or outside the site from the tip part 12a of the gate 10. - 特許庁The shielding portion 51 overlaps the tip portion 12a when viewed from the passage (the passage C within the site or the passage D outside the site). The shielding part 51 may be formed integrally with the gatepost 50 , or may be formed so that a wall or a post that is a separate member from the gatepost 50 is in contact with the gatepost 50 .

The case where the catch portion 40 is brought into contact with the stopper portion 30 by magnetic force when the gate 10 is at the closed position A has been described above. can be maintained. In the following, as another embodiment (second embodiment) of the present invention, a case where a magnetic force works to maintain both the closed and open gates 10 will be described.

FIG. 7 is a diagram showing an installation state of the gate device 2 according to the second embodiment. In a second embodiment, the gate device 2 includes two catches 40a, 40b. The catch portion 40a contacts the stopper portion 30 when the gate 10 is at the open position A, and the catch portion 40b contacts the stopper portion 30 when the gate 10 is at the open position B. As shown in FIG. Both of the catch portions 40a and 40b maintain contact with the stopper portion 30 by magnetic force. Note that the catch portion 40a is the same as the catch portion 40 described in the first embodiment, and other constituent elements other than the catch portion 40b are also the same as those described in the first embodiment, so description thereof will be omitted. .

FIG. 8 is a diagram showing the stopper portion 30 and the catch portion 40b according to the second embodiment. The catch portion 40b has a bilaterally symmetrical structure with the catch portion 40a (see the catch portion 40 shown in FIG. 3), and its constituent elements are the same as those of the catch portion 40a. The magnet 41 of the catch portion 40a is attracted to the surface of the metal plate 31 on the front end side, while the magnet 41 of the catch portion 40b is attracted to the surface of the metal plate 31 on the rear end side. Also in the second embodiment, a first spring 45a is provided between the magnet 41 and the support 42, and a second spring 45b is provided between the support 42 and the nut 44, respectively. As a result, even when the gate 10 moves from the closed position A to the open position B, the metal plate 31 can be reliably attracted to the magnet 41 by alleviating the impact of the catch portion 40b on the magnet 41 . Further, when a person moves the gate 10 from the open position B toward the closed position A, the person moves the gate 10 to the closed position A at the timing when the force to pull the magnet 41 attracted to the metal plate 31 increases. It is possible to make it easy to move the gate 10 manually by shifting the start timing (at the start of closing the gate).

Further, in the first embodiment, the catch portion 40 fixed to the ground includes the first and second springs 45a and 45b, but the stopper portion 30 fixed to the gate 10 includes the first and second springs 45a and 45b. Two springs may be included. This example will be described as another embodiment (third embodiment) of the present invention.

9 and 10 are diagrams showing the stopper portion 70 and the catch portion 80 of the gate device 3 according to the third embodiment. 10 is a partial cross-sectional view taken along line XX of FIG. 9. FIG. In addition, other components except for the stopper portion 70 and the catch portion 80 are the same as those described in the first embodiment, so description thereof will be omitted.

As shown in FIG. 9, in the third embodiment, the stopper portion 70 includes first and second springs 75a and 75b, and the catch portion 80 does not include springs. The catch portion 80 has a magnet 81 attracted to the second metal plate 72 , a support 82 , a rod-shaped fixed shaft 83 extending along the extending direction of the rail 20 , and a nut 84 . The support 82 is fixed to the ground by an anchor or the like, the fixed shaft 83 passes through a hole H3 formed in the support 82 and is fixed by a nut 84, and the magnet 81 is fixed to the rear end of the fixed shaft 83. That is, unlike the first embodiment, the magnet 81 is fixed so as not to move along the extending direction of the rail 20 .

The stopper portion 70 includes a first metal plate 71 fixed to the lower portion (rear end portion 12b) of the gate, a second metal plate, a guide shaft 73, nuts 74a and 74b, and a first spring 75a. A second spring 75 b is arranged between the rear end (nut 74 b ) of the guide shaft 73 and the first metal plate 71 . In the third embodiment, the first metal plate 71 corresponds to the "base portion" described in the claims, and is formed with a hole H2 through which a rod-shaped guide shaft 73 is inserted.

The guide shaft 73 extends along the extending direction of the rail 20, and has a second metal plate 72 fixed to its tip (one end) by a nut 74a and a nut 74b attached to its rear end (the other end). there is The guide shaft 73 passes through the hole H2 of the first metal plate 71, and its rear end (the side to which the nut 74b is attached) is arranged on the side opposite to the second metal plate 72 with respect to the first metal plate 71. be done. Thereby, the second metal plate 72 fixed to the guide shaft 73 is supported by the first metal plate 71 arranged on the opposite side of the magnet 81 of the catch portion 80 . Here, the first spring 75a is arranged between the second metal plate 72 (tip of the guide shaft 73) and the first metal plate 71, and the second spring 75a and the first metal plate 71 It is arranged between the nuts 74b (the rear end of the guide shaft 73). As in the first embodiment, the constant (spring constant) of the second spring 75b is smaller than the constant of the first spring 75a.

As shown in FIG. 10, holes H2 of the first metal plate 71 are provided on the left and right sides of the magnet 81 , respectively, and two guide shafts 73 are inserted therethrough. A second metal plate 72 having a broader flat surface than the magnet 81 is fixed to the tip of these two guide shafts 73 . The two nuts that fix the second metal plate 72 are arranged at positions that do not come into contact with the magnet 81 . As in the first embodiment, the inner diameter of each hole H2 formed in the first metal plate 71 is larger than the outer diameter of each guide shaft 73 . Therefore, the guide shaft 73, the second metal plate 72 fixed thereto, and the nuts 74a and 74b are relatively movable along the extending direction of the rail 20 with respect to the first metal plate 71. .

When the gate 10 moves from the open position B to the closed position A, the first spring 75a is pushed and compressed by the second metal plate 72 and the first metal plate 71, as in the first embodiment. Thereby, the impact on the magnet 81 is alleviated. As a result, when the gate 10 moves to the closed position A and the second metal plate 72 hits the magnet 81 , the second metal plate 72 can be reliably attracted to the magnet 81 . One end of the second spring 75b is fixed to the first metal plate 71, and the other end is fixed to the nut 74b. stretched by As a result, the impact on the magnet 81 is further reduced, and the attraction of the magnet 81 can be made more reliable.

Also, when a person moves the gate 10 from the closed position A to the open position B, the second spring 75b is pushed and compressed by the first metal plate 71 and the nut 74b so that the second metal plate 72 The magnet 81 attracted to is pulled. Since the force with which the second metal plate 72 is pulled increases according to the magnitude of the compression ratio of the second spring 75b, the timing at which the force with which the second metal plate 72 is pulled from the magnet 81 increases is determined by human power. It can be shifted from the opening start time of the gate 10. - 特許庁This makes it easier to move the gate 10 manually.

As in the first embodiment, the first spring 75a has one end attached to the second metal plate 72 so as not to pull the second metal plate 72 when a person moves the gate 10. Preferably, it is not fixed or the other end is not fixed to the first metal plate 71 . By doing so, it is possible to prevent the gate 10 from being difficult to open manually.

As described above, in the gate devices 1, 2 and 3 according to the respective embodiments, the catch portions 40 and 80 provided on the ground maintain contact with the stopper portions 30 and 70 provided on the gate 10 by magnetic force. Thus, the gate 10 can be reliably fixed.

In each embodiment, an example in which the stopper portion or the catch portion has the first and second springs has been described, but the gate device according to the present invention is not limited to this. For example, only the first spring or only the second spring may be arranged in the stopper portion or the catch portion. Also, a third spring may be included that is different from the first and second springs. In each embodiment, an example in which one end or the other end of the first spring is not fixed has been described. Alternatively, it may be one that pulls a metal plate that is attracted to a magnet.

Reference Signs List 1, 2, 3 gate device, 10 gate, 11 door roller, 12a tip portion, 12b rear end portion, 13 frame portion, 20 rail, 30, 70 stopper portion, 31 metal plate, 40, 40a, 40b, 80 catch portion, 41, 81 magnet 42, 82 base 43, 73 guide shaft 83 fixed shaft 44, 74a, 74b, 84 nut 45a, 75a first spring 45b, 75b second spring 50 gate post 51 shielding part 60 gate wall 71 first metal plate 72 second metal plate;

Claims (3)

A gate with a door roller at the bottom,
a rail that is provided on the ground and guides the opening and closing movement of the gate by placing the door roller on the rail;
a stopper portion provided on the gate and perpendicular to the extending direction of the rail;
a catch portion that is provided on the ground, contacts the stopper portion when the gate is in the closed position or the open position, and maintains contact with the stopper portion by magnetic force;
including
One of the stopper portion and the catch portion includes a magnet, and the other includes a metal plate attracted to the magnet,
One of the magnet and the metal plate is supported by a base portion arranged on the opposite side to the other so as to be movable in the extending direction of the rail. A first spring is provided between,
One end of a guide shaft extending in the extending direction of the rail is fixed to one of the magnet and the metal plate, the guide shaft passes through the base portion, and the other end is connected to the magnet. arranged opposite to one of the metal plates,
A second spring is provided between the other end of the guide shaft and the base ,
the constant of the second spring is less than the constant of the first spring;
gate device. In the gate device according to claim 1 ,
the end of the first spring is not fixed to one of the magnet and the metal plate or to the base;
gate device. In the gate device according to claim 1 or 2 ,
When the gate door moves from the open position to the closed position, the tip of the gate approaches the gate post,
The gatepost is located inside or outside the site from the tip, and has a shielding part that overlaps the tip when viewed from the passage.
gate device.

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