JP7467788B2 - Shut-off mechanism for conveyor - Google Patents

Description

The present invention relates to a blocking mechanism for a transport device that can accommodate the separation of rooms and buildings by blocking walls such as fire shutters in a transport facility in which transported goods are freely moved between rooms and buildings within a building.

In recent years, buildings such as automated warehouses, logistics centers, and factories that house transportation and manufacturing equipment have a large total floor area and many enclosed spaces with few windows. As a result, once a fire breaks out, it can become a large-scale fire that has a major impact not only on the building itself but also on nearby residents, so countermeasures against fires have become extremely important.

Fire prevention measures are taken at each stage of a fire, from prevention to firefighting activities, but it is the Fire Service Act and the Building Standards Act that are responsible for enforcing various measures for buildings. The Fire Service Act is responsible for measures in the early stages of a fire, while the Building Standards Act is responsible for measures in case the initial stage of a fire, such as fire prevention equipment, escape routes, and emergency equipment, is breached.

In particular, the Building Standards Act prescribes fire compartments of specified areas and compartmentalization methods according to the size, type, and use of a building in order to prevent the spread of fire, secure evacuation routes, and assist with firefighting and rescue efforts (Article 112 of the Enforcement Order of the Building Standards Act).

For example, in a fire-resistant building with a floor area exceeding 1,500 ^m2 , there is an obligation to separate every ^1,500 m2 with semi-fire-resistant floors or walls, or specific fire prevention equipment, and various types of fire shutters, etc. must be installed between the rooms of the building.

Figure 1 shows a schematic diagram of the inside of a building where transport equipment that allows goods to be freely moved between rooms in the building is installed, as can be found in multi-story automated warehouses and logistics centers, and fire shutters are installed as partition walls that can separate the rooms. As shown in Figure 1, rooms 1-1 and 1-2 divided within a building of a specified size or larger are provided with a quasi-fireproof fire shutter 2-1 on the wall 1-3 of the building, along with guide rails 2-2, sensors 2-3, automatic switches 2-4, etc., and this fire protection equipment can separate the transport equipment 1-4 and 1-5 installed in different rooms in the event of a fire. Then, between the transport equipment 1-4 and 1-5 installed across this fire protection equipment, a relay transport equipment 1-6 is usually installed that can transfer goods so that they can be freely moved between the rooms, but some kind of device is used to evacuate the relay transport equipment 1-6 so that it does not interfere with the fire shutter 2-1 that descends in the event of a fire.

For example, Patent Document 1 describes a mechanism for retracting relay members that transfer transported objects between transport devices in different rooms without being an obstacle to the descending barrier wall. The mechanism includes a transport section, a guide that prevents the transported object from falling sideways, and a fitting, and is held in the transported object transfer position by a fitting holder that has a compression spring and a sphere. When the descending barrier wall collides with the guide that prevents the transported object from falling sideways, the fitted and held state is released, and the transport section rotates under its own weight to move to the retracted position.

In this example, it is described that the descending barrier wall collides with the guide that prevents the transported goods constituting the relay member from falling sideways, thereby avoiding collision with the transport section and protecting the transport section. However, in the event of an emergency fire, the heavy, fire-resistant barrier wall will descend at high speed to close the room, and will still collide violently with the guide. In addition, since the relay member is held by the engagement between the fitting provided on the relay member and the fitting holder equipped with a compression spring and a sphere, the impact when the heavy barrier wall descends at high speed collides with the guide is extremely large, and the damage to the relay member is thought to be beyond imagination. Furthermore, there is no guarantee that such mechanical engagement and evacuation by its own weight will work reliably. Moreover, there is no mechanism for quickly restoring the transport equipment, and manual labor is required. In order to quickly restore the transport equipment after the fire is over, and considering the malfunction of the barrier wall due to the increased sensitivity of fire detectors, it is desirable for the transport equipment to be easily, preferably automatically, restored when the barrier wall is opened and restored.

Various other mechanisms have been proposed to prevent relay transport devices, which transfer transported goods between transport devices in different rooms, from becoming an obstacle to the descending barrier wall. However, a mechanism for reliably operating and quickly recovering from the high-speed descent of a heavy barrier wall without damaging the relay transport device has not yet been found; that is, a mechanism for reliably operating and quickly recovering from the descent of a heavy barrier wall at high speed without damaging the relay transport device, i.e., a mechanism for reliably operating and quickly recovering from the descent of a transport device that is safe, secure, and capable of dealing with the separation of rooms and buildings by a barrier wall such as a fire shutter, without damaging the transport equipment.

Japanese Patent Application Laid-Open No. 10-59521

The present invention aims to provide a safe, secure, reliable, and quickly recoverable shutoff mechanism for a transport device that does not damage the transport equipment, in fire protection equipment that has been enhanced due to the social background of preventing the spread of fire damage associated with the large scale of buildings such as automated warehouses and logistics centers equipped with transport equipment, and in particular in fire protection equipment that separates rooms and buildings with blocking walls such as fire shutters in transport equipment that allows goods to be moved freely between rooms and buildings within a building.

More specifically, the objective is to provide a blocking mechanism for a transport device that is installed between transport devices in different rooms that require fire protection equipment to separate rooms and buildings using a blocking wall such as a fire shutter, and that transfers transported goods, and that can reliably and quickly evacuate without being damaged when the blocking wall is closed, and can quickly recover when the blocking wall is opened.

The present invention is basically a blocking mechanism that is equipped with a means for detecting the descent of a blocking wall, and is equipped with a drive device or operating parts that enable an intermediate transport device that is installed between transport devices in different rooms and transfers transported goods to and from the blocking space where the blocking wall is lowered, based on a signal or power from the detection means, but is a blocking mechanism for a transport device that has its own characteristics in the detection means, intermediate transport device, and operating parts.

The present invention was completed by considering the material and structure of the lever or roller that comes into contact with or collides with the barrier for the detection means, the mechanism for the rotation, sliding or extension for the relay transport device, the cylinder and its power source for the drive device, the combination of springs, weights and pulleys for the operating parts, as well as the holding parts and holding methods for the relay transport device, etc.

In other words, the present invention is a blocking mechanism for a conveying device, which is a conveying facility capable of moving objects between rooms, and is provided with a conveying device whose start and end are located between the rooms, an intermediate conveying means located in the blocking space where a blocking wall between the rooms rises and falls, a detection means for detecting the blocking operation of the blocking wall, and a double-acting means capable of stopping and driving the intermediate conveying means, and which is characterized in that the intermediate conveying means is a conveyor that responds to the conveying device and is journaled at one end of a rotating side plate that is supported around the pivot of a rotating side plate support member provided near the start or end of the conveying device, and the double-acting means is connected to the rotating side plate so that it can support the conveyor that responds to the conveying device and can rotate out of the blocking space to retreat.

The conveyor that operates in response to the transport device used as the relay transport means is not particularly limited, and any conveyor that can transfer transported items between rooms without hindrance and that fits within the barrier space that allows the barrier wall to be raised and lowered is suitable, and a general roller conveyor, belt conveyor, etc. is suitable. In the case of a roller conveyor, it is preferable to have only one roller, which allows for the construction of a simple barrier mechanism.

The rotating side plate that supports the relay conveying means and is supported by the rotating side plate support member so that it can rotate and retreat from the blocking space, and the double-acting means that supports the rotating side plate and is connected so that it can retreat from the blocking space may be installed on at least one side of the two conveying devices whose starting and ending points are located between the rooms, but it is preferable to install them on both sides in order to stably perform the relay conveying device's function of transferring transported items and the relay conveying device's function of retreating.

The rotating side plate support member that rotatably supports the rotating side plate that supports the conveyor may be specially provided, but it can be replaced by the side wall of the conveying device. Similarly, new support members for fixing the detection means and double-acting means may be provided, but they may also be fixed using the side wall of the conveying device.

In this type of transport device's shutoff mechanism, when a signal is issued from the detection means that detects the shutoff operation in which the shutoff wall descends to close the room, the double-acting means, which supports the relay transport means and is connected to a rotating side plate that is supported around the rotation axis of the rotating side plate support member, rotates the rotating side plate downward to move the relay transport means out of the shutoff space. Conversely, when the detection means detects the connection operation in which the shutoff wall rises to open the room, a switching signal is issued and the double-acting means rotates the rotating side plate upward to return the relay transport means to its original position.

The blocking mechanism of the conveying device of the present invention therefore operates the double acting means to which the relay conveying device is rotatably connected, based on a signal sent from the detection means, without the barrier coming into contact with the relay conveying device, and the relay conveying device can be evacuated from the blocking space. This allows the relay conveying device to be evacuated reliably and quickly without being damaged, and can be quickly restored when the barrier is opened.

Furthermore, the cutoff mechanism of the transport device of the present invention is characterized by the application of the relay transport means described below from the viewpoint of reliable and rapid evacuation and rapid return.

First, in the blocking mechanism of the conveying device, which includes a conveying device whose starting and ending points are located between the rooms, an intermediate conveying means located in the blocking space where the blocking wall between the rooms rises and falls, a detection means for detecting the blocking operation of the blocking wall, and a double-acting means capable of stopping and driving the intermediate conveying means, the intermediate conveying means is a conveyor that responds to the conveying device and is journaled on a conveyor sliding support member that slides on a sliding member provided outside the blocking space adjacent to the starting or ending point of the conveying device, and the double-acting means is connected to the conveyor sliding support member so that the conveyor sliding support member can be prevented from sliding and can be slid out of the blocking space to be withdrawn.

In this case, the conveyor that operates in response to the transport device used as the relay transport means is not particularly limited, and any conveyor that can transfer the transported items between rooms without hindrance and that fits within the barrier space that allows the barrier wall to be raised and lowered is suitable, and a general roller conveyor, belt conveyor, etc. is suitable. In the case of a roller conveyor, it is preferable to have only one roller, which allows for the construction of a simple barrier mechanism.

The sliding member provided outside the cut-off space adjacent to the start or end of the conveying device, the conveyor sliding support member that supports the conveyor and slides on the sliding member, and the double-acting means that connects the conveyor sliding support member so that it can slide and retreat from the cut-off space may be installed on at least one side of the two conveying devices whose start and end are located between the rooms, but it is preferable to install them on both sides in order to stably realize the relay conveying device's function of transferring the transported goods and the relay conveying device's function of retreating.

The sliding member that receives the double-acting means and the conveyor sliding support member may be fixed by providing a new support member, or may be fixed by using the side wall of the conveying device.

In this type of shutoff mechanism of the conveying device, when a signal is issued from the detection means that detects the shutoff operation in which the shutoff wall descends to close the room, the double-acting means that slides on a sliding member provided outside the shutoff space adjacent to the start or end of the conveying device and is connected to a conveyor sliding support member that supports the relay conveying means is contracted, causing the conveyor sliding support member to slide and the relay conveying means to retreat from the shutoff space. Conversely, when the detection means detects the connection operation in which the shutoff wall rises to open the room, a switching signal is issued and the double-acting means is extended, causing the conveyor sliding support member to slide and return the relay conveying means to its original position.

Secondly, in the blocking mechanism of the conveying device, which is equipped with a conveying device whose starting and ending points are located between the rooms, an intermediate conveying means located in the blocking space where the blocking wall between the rooms rises and falls, a detection means for detecting the blocking operation of the blocking wall, and a double-acting means capable of stopping and driving the intermediate conveying means, the intermediate conveying means is a conveyor that responds to the conveying device, one end of the conveyor that responds to the conveying device is supported by a conveyor fixing support member outside the blocking space adjacent to the starting or ending point of the conveying device, and the double-acting means is connected so that it can be supported by the other end of the conveyor that responds to the conveying device and can be rotated and retreated from the blocking space.

As a conveyor, a general roller conveyor, belt conveyor, etc. are suitable, but in this case, the roller conveyor must have at least two rollers, since a single roller is not enough to move the intermediate transport means out of the blocked space.

In this transport device's shutoff mechanism, when a signal is issued from the detection means that detects the shutoff operation in which the shutoff wall descends to close the room, the double-acting means connected to one end of the relay transport means, one end of which is journalled to a fixed conveyor support member outside the shutoff space adjacent to the start or end of the transport device, retracts, and the relay transport means rotates downward to retreat from the shutoff space. Conversely, when the detection means detects the connection operation in which the shutoff wall rises to open the room, a switching signal is issued and the double-acting means extends, allowing the relay transport means to return to its original position.

Otherwise, the installation method and location of the conveyor fixing support member and double acting means are the same as those of the above-mentioned blocking mechanism, so explanation will be omitted.

Thirdly, in a blocking mechanism for a conveying device that includes a conveying device whose start and end are located between the rooms, an intermediate conveying means located in the blocking space where the blocking wall between the rooms rises and falls, a detection means for detecting the blocking operation of the blocking wall, and a double-acting means capable of stopping and driving the intermediate conveying means, the intermediate conveying means is a conveyor that responds to the conveying device and is supported by a conveyor extension and contraction support member provided near the start or end of the conveying device, and the double-acting means is connected to the conveyor extension and contraction support member so that the conveyor that responds to the conveying device can be held back and can be retreated from the blocking space.

In this case, a general belt conveyor or roller conveyor cannot be used as the relay transport means. Instead, an expansion/contraction means such as a spring must be provided between the support members that support at least two or more rollers that make up the conveyor, and a double-acting means must be connected so that the expansion/contraction means can be contracted and the conveyor can be held.

With this configuration, when a signal is issued from the detection means which detects the blocking operation in which the blocking wall descends to close the room, the double acting means contracts, causing the extension means between the support members which support the rollers which make up the relay conveying means to contract, shortening the length of the conveyor and allowing the relay conveying means to retreat from the blocking space. Conversely, when the detection means detects the connecting operation in which the blocking wall rises to open the room, a switching signal is issued and the double acting means expands, causing the extension means between the support members which support the rollers which make up the relay conveying means to also expand, lengthening the length of the conveyor and allowing the relay conveying means to return to its original position.

Otherwise, the installation method and location of the conveyor fixing support member and double acting means are the same as those of the above-mentioned blocking mechanism, so explanation will be omitted.

Fourthly, in the blocking mechanism of the conveying device, which includes a conveying device whose start and end are located between the rooms, an intermediate conveying means located in the blocking space where the blocking wall between the rooms rises and falls, a detection means for detecting the blocking operation of the blocking wall, and a double-acting means capable of stopping and driving the intermediate conveying means, the intermediate conveying means is a roller that responds to the conveying device, and the roller that responds to the conveying device is supported by a roller rotation support member, and the roller rotation support member is supported by a spherical bearing provided on a spherical bearing support member near the start or end of the conveying device, and further includes a guide plate that slides against the roller rotation support member so that it can be retracted from the blocking space, and the double-acting means is connected to the roller rotation support member so that it can support the roller that responds to the conveying device and can be retracted by rotating vertically and then horizontally from the blocking space.

In this case, the relay conveying means is limited to one roller. The L-shaped roller rotation support member on which this roller is supported is supported by a spherical bearing, and the double acting means is connected to the arm of the L-shaped roller rotation support member. A guide plate that guides the roller to a track that allows it to retreat from the blocking space and return to the blocking space as the double acting means extends and retracts is in slidable contact with the arm of the L-shaped roller rotation support member.

The roller trajectory caused by the guide plate of the blocking mechanism of this configuration will be explained in more detail. The L-shaped roller pivot shaft support member is supported by a spherical bearing, so the L-shaped roller pivot shaft support member can move three-dimensionally. Therefore, when the double-acting means connected to the arm of the L-shaped roller pivot shaft support member extends, the roller supported by the L-shaped roller pivot shaft support member rotates upward from the position of the conveying device installed in a different room, and if the guide plate is shaped so that it can rotate perpendicular to the conveying device and retreat when the double-acting means extends, the double-acting means can be converted into a rotational motion of the roller, and it can easily be retreated from the blocking space and returned to the blocking space.

In the case of this blocking mechanism, the installation method and location of the spherical bearing support member, L-shaped roller pivot shaft support member, and double-acting means differ from the blocking mechanism described above, and it is preferable that the spherical bearing support member and double-acting means are fixed below the conveying device, and the L-shaped roller pivot shaft support member is naturally provided on one side of the roller of the relay conveying means.

Fifthly, in a blocking mechanism for a transport device having a start and end located between the rooms, an intermediate transport means located in the blocking space where the blocking wall between the rooms rises and falls, a detection means for detecting the blocking operation of the blocking wall, and a double-acting means capable of stopping and driving the intermediate transport means, a step is provided at the start and end of the transport device, the intermediate transport means is a conveyor or an inclined plate that responds to the transport device, one end of the conveyor or inclined plate that responds to the transport device is journaled by a conveyor fixing support member or an inclined plate fixing support member outside the blocking space adjacent to the start or end of the transport device so as to relay the step, and the double-acting means is connected to the conveyor or inclined plate that responds to the transport device so as to be able to hold back the conveyor or inclined plate that responds to the transport device and to be able to rotate and retreat from the blocking space.

In this case, the conveyor can be a general roller conveyor, belt conveyor, etc., and the conveyor fixing support member or inclined plate fixing support member and double action means that support them can be installed on at least one side of the conveyor device, but to ensure stable retraction and return of the conveyor or inclined plate, it is preferable to install them on both sides of the conveyor device. In addition, the method of fixing these can be to install new support members, or to utilize the side walls of the conveyor device, etc.

The cutoff mechanism of the conveying device of the present invention also provides the following solutions for the double-acting means, with the aim of quickly and reliably retracting the intermediate conveying means and quickly returning it to its original position.

First, the double-acting means is an air cylinder and an electric cylinder that reciprocates a piston to move the intermediate transport means out of the blocking space and back to the blocking space in response to an instruction from the detection means.

Since air cylinders are powered by compressed air, they are simple in structure, small in size, highly safe and clean devices, and can be used even in high-temperature environments, making them suitable as double-acting means to be driven in the event of a fire. In addition, because compressed air is elastic, there is less chance of damaging the relay transport means of the present invention when it is retracted and restored.

Air cylinder air supply switching valves can be pneumatic switching valves or electromagnetic switching valves, but are not limited to these. From the viewpoint of not using electricity, pneumatic switching valves are preferable, and a device using an all-pneumatic circuit is possible. However, as the power supply issue can be resolved by applying an emergency power supply or a self-generating device, as described below, it is desirable to use both types with consideration given to switching speed.

And by providing an air tank for storing high-pressure air connected to the compressor via an on-off valve as the air supply means to the air cylinder, there is also the characteristic that, like the shutoff mechanism of the conveying device of the present invention, it is not necessary to enlarge the device when it is to be used only in the event of a fire. Furthermore, in order to deal with failures of the main air tank, it is preferable to provide an auxiliary tank via an on-off valve, and it is even more preferable to provide an auxiliary tank connected to the compressor via an on-off valve. In the worst case scenario, since the shutoff mechanism of the conveying device of the present invention is used only in the event of a fire, the air supply means to the air cylinder can be fully operated by air piping formed by the air cylinder and the on-off valve. In this way, air cylinders are particularly superior from the viewpoint of safety.

On the other hand, the double-acting means of the cutoff mechanism of the conveying device of the present invention is characterized as an electric cylinder because it has characteristics different from those of an air cylinder.

Electric cylinders, in particular, have the great advantage of being easy to control, allowing easy position and speed adjustments, and quick initial action. Therefore, their high controllability makes it possible to prevent damage, and their fast initial action makes them suitable for emergency evacuation of relay transport means.

The need for a power source can be resolved by applying an emergency power source or a self-generating device, as described below.

Secondly, the double-acting means of the present invention is characterized by a mechanism in which a mechanical expansion and contraction device is provided in tandem with an air cylinder or an electric cylinder that reciprocates a piston to move the intermediate transport means out of the blocking space and return the intermediate transport means to the blocking space in accordance with the instruction of the detection means.

In this way, by arranging a mechanical extension device in parallel with an air cylinder or electric cylinder, the reciprocating motion of the pinwheel of the air cylinder or electric cylinder is assisted, and not only is the load on the power source related to the air cylinder or electric cylinder reduced, but the operation of the relay conveying means is also controlled.

The mechanical expansion and contraction device is not particularly limited, but is preferably a weighted wire, a compression spring, or a tension spring. In the case of a weighted wire, it encourages the relay transport means to move quickly when the relay transport means is retracted. In the case of a compression spring, it assists in holding the relay transport means that transfers the transport means between different rooms, and gives elasticity to the relay transport means when retracting, helping to prevent damage to the relay transport means. And in the case of a tension spring, it encourages the relay transport means to move quickly, just like a weighted wire.

Furthermore, in a conveying facility capable of moving objects between rooms, the conveying device has a start and end located between the rooms, an intermediate conveying means located in the interrupting space where the interrupting wall between the rooms rises and falls, a detection means for detecting the interrupting operation of the interrupting wall, and a double-acting means for stopping and driving the intermediate conveying means. The detection means can be cited as a feature of the interrupting mechanism of the conveying device of the present invention.

The detection means of the present invention is characterized by having a lever that is located in the blocking space and comes into contact with or collides with the blocking wall when the blocking wall descends, a switching device that converts the displacement of the lever into a signal, and wiring that transmits the signal to the double-acting means and/or the transport device.

By providing the detection means of the present invention, the relay conveying means can be shifted to a retreating operation without contact or collision between the blocking wall and the relay conveying means, which not only reduces damage to the relay conveying means, but also allows the relay conveying means to shift to a retreating operation and stop the conveying device depending on the position of the lever of the detection means, making it possible not only to quickly retreat the relay conveying means but also to prevent the conveyed goods from falling from the conveying device.

Conversely, after a fire is extinguished or the barrier malfunctions, the barrier rises and the signal is switched by the lever of the detection means, allowing the relay transport means to return to its original position for transferring transported goods between the transport devices in different rooms.

Furthermore, by devising a lever that comes into contact with or collides with the blocking wall as the blocking wall descends and ascends, such a detection means can induce the retraction and return of the relay transport means without the need for a power source. That is, the detection means is a wheel-shaft-shaped generator roller that rotates in contact with the blocking wall and is journaled on a first detection roller support member fixed near the beginning or end of the transport device, and is rotatably connected to a rotary generator equipped with an amplifier, and is wired to an air cylinder and utilized as a power source for driving the electromagnetic switching valve of the air cylinder. This detection means has the advantage that it can drive the air cylinder to retract and return the relay transport means without the need for a power source at all. It can also serve as a power source when an electric cylinder is used.

On the other hand, when the cutoff mechanism of the conveying device of the present invention uses an air cylinder or an electric cylinder as the double-acting means for retracting the relay conveying means, the detection means does not need to be a lever that comes into contact with or collides with the blocking wall, but may be a fire alarm and/or a sprinkler. By transmitting a signal from the fire alarm and/or sprinkler to the double-acting means and/or the conveying device, the relay conveying means can be shifted to a retracting operation and the conveying device can be stopped, which not only enables the relay conveying means to be quickly retracted, but also makes it possible to prevent the transported object from falling from the conveying device.

As mentioned above, if a double-acting means that requires a certain amount of power, such as an air cylinder or an electric cylinder, is used in the cutoff mechanism of the conveying device of the present invention, it is expected that there will be a power outage in the event of a fire, so it is preferable to make it possible to switch to an emergency power source.

In this way, in a transport facility capable of moving transported objects between rooms, the transport device has a start and end located between the rooms, an intermediate transport means located in the blocking space where the blocking wall between the rooms rises and falls, a detection means for detecting the blocking operation of the blocking wall, and a double-acting means for stopping and driving the intermediate transport means. As features of the blocking mechanism of the transport device of the present invention, the intermediate transport means and the detection means have been described, but furthermore, a solution has been found that combines the detection means and the double-acting means.

Conventional double-acting means have been used to retreat and return relay transport means by utilizing the reciprocating motion of a piston in a cylinder powered by water, air, oil, electricity, etc., but the double-acting means of the present invention, which will be described below, is characterized by the use of a double-acting means that can move with applied pressure during reciprocating motion in either direction without using a power source such as air or electricity.

In other words, the blocking mechanism of the transport device of the present invention is a transport facility capable of moving transported objects between rooms, the transport device having a start and end located between the rooms, an intermediate transport means located in the blocking space where the blocking wall between the rooms rises and falls, a detection means for detecting the blocking operation of the blocking wall, and a double-acting means for stopping and driving the intermediate transport means, the intermediate transport means being a conveyor that responds to the transport device and is journaled on a conveyor sliding support member that slides on a sliding member provided outside the blocking space adjacent to the start or end of the transport device, the double-acting means being a tension spring that is connected to the conveyor sliding support member so that the conveyor sliding support member can be prevented from sliding by a stopper and can slide out of the blocking space and be withdrawn, and the detection means being a winding device equipped with a lever located in the blocking space, the stopper and the winding device being connected so that the blocking wall comes into contact with or collides with the lever and the stopper can be released. A weight can also be used instead of the tension spring.

This cutoff mechanism also causes the relay transport means to retreat when the detection means comes into contact with or collides with the barrier wall, so there is no damage to the relay transport means, and because it is powered by a spring or weight, the retreat action of the relay transport means is gentle, making it a highly safe cutoff mechanism. In addition, it does not require a power source, making it suitable as a device to be activated in the event of a fire.

The above describes a cutoff mechanism for a transport device that is capable of moving transported objects between rooms, and that includes a transport device whose start and end are located between the rooms, an intermediate transport means located in the cutoff space where the barrier between the rooms rises and falls, a detection means for detecting the blocking operation of the barrier, and a double-acting means for stopping and driving the intermediate transport means. However, the objective of the present invention, which is to realize a cutoff mechanism that does not damage the transport equipment due to the descent of the barrier wall, is safe and secure, can be reliably handled, and can be quickly restored, is not limited to this configuration, and can also be realized by a cutoff mechanism that does not require a power source and is characterized by the combination of various parts.

An example of such a cut-off mechanism for a conveying device of the present invention is a conveying facility capable of moving conveyed objects between rooms, the conveying device having a start and end located between the rooms, relay conveying means located in a cut-off space where a cut-off wall between the rooms rises and falls, a locking means capable of stopping the relay conveying means, and a detection means for detecting the cut-off operation of the cut-off wall, and the detection means for detecting the cut-off operation of the cut-off wall and the locking means capable of stopping the relay conveying means are integrated into an relay conveying means release arm, the relay conveying means release arm is supported with the axis of a support pillar provided near the start or end of the conveying device as the center of rotation, the relay conveying means is a roller that responds to the conveying device and is journaled on one end of a rotating side plate to which a suspension pin is attached that is supported with the rotation axis of a rotating side plate support member provided near the start or end of the conveying device as a fulcrum, the locking means suspends the rotating side plate using the suspension pin, and the detection means is a switching device with a lever located in the cut-off space. In this blocking mechanism, the blocking wall comes into contact with or collides with the lever as it descends, and the locking means releases the suspension of the rotating side plate, allowing the relay means to move aside.

This blocking mechanism has an extremely simple structure, and the relay transport means can be quickly evacuated without contact or collision between the blocking wall and the relay transport means. Conversely, because of its simple structure, it can be easily restored, although not automatically.

By attaching a bearing to the suspension pin of this blocking mechanism, the retraction operation of the relay transport means can be made smoother, which is preferable. Conversely, by connecting the lever, which is the detection means, to a support post provided near the start or end of the transport device with a tension spring, the relay transport means can be held stably.

A second cutoff mechanism that does not require a power source and is characterized by combining various parts can be mentioned as a cutoff mechanism for a transport device, which is characterized in that, in a transport facility capable of moving transported objects between rooms, the cutoff mechanism comprises a transport device whose start and end are located between the rooms, a relay transport means located in the cutoff space where the cutoff wall between the rooms rises and falls, a locking means capable of stopping the relay transport means, and a detection means for detecting the cutoff operation of the cutoff wall, and the relay transport means retraction arm is integrated with the detection means for detecting the cutoff operation of the cutoff wall, the relay transport means retraction arm is a roller that responds to the transport device and is supported at the tip of the relay transport means retraction arm with the axis of a support column provided near the start or end of the transport device as the center of rotation, the locking means is a compression spring that is fixed to the transport device and presses the relay transport means retraction arm, and the detection means is a switching device with a lever located in the cutoff space. According to this cutoff mechanism, the cutoff wall comes into contact with or collides with the lever as the cutoff wall descends, and the locking means retracts, causing the relay means to retract.

This second blocking mechanism also has a very simple structure, and the blocking wall and the relay transport means do not come into contact with or collide with each other, allowing the relay transport means to quickly retreat. In addition, because the relay transport means is pressed by a compression spring, it does not fall freely, making it safe for workers and preventing damage to the transport device.

Because it has a simple structure, it can be easily restored, although not automatically. In the case of this second cutoff mechanism, as described below, by devising a lever for the detection means, it is possible to automatically return the relay transport means to its original position as the cutoff wall rises.

Although various types of blocking mechanisms that solve the problems of the present invention have been described, there are various means of solving the problems of the present invention that are common to all of them. These are the material and configuration of the lever used as the detection means, and are intended to mitigate impact and damage to the blocking wall and blocking mechanism, and to facilitate the restoration of the transport equipment when the blocking wall is opened.

When the lever located in the blocking space provided in the detection means is displaced by contact or collision with the descending blocking wall, whether an electrical signal initiates the retreat operation of the relay transport means or a mechanical operation initiates the retreat operation of the relay transport means, as long as the lever is at least an elastic structure, the lever can be displaced to function the blocking mechanism of the present invention.

However, the impact on the barrier and lever caused by the heavy, fire-resistant barrier descending at high speed and coming into contact with or colliding with the lever is extremely large, and it is expected that the barrier and lever may be damaged. Therefore, the lever of the elastic structure located in the barrier space provided in the detection means is preferably covered with a rubber-like material or enclosed in a rubber balloon in order to cushion the impact. It is also more preferable to form the lever itself from a rubber-like material having an elastic modulus that does not impair the displacement of the lever due to contact or collision with the barrier. It goes without saying that a lever made of such a material can be displaced by contact or collision with the descending barrier, and can function as the barrier mechanism of the present invention, in either case where an electrical signal initiates the retraction operation of the relay transport means or where a mechanical operation initiates the retraction operation of the relay transport means, just like the lever of the elastic structure. And because the barrier can remain in contact even after it descends, the friction between the barrier and the lever makes it possible to reverse the electrical signal or mechanical operation of the lever when the relay transport means returns to its original position as the barrier rises, making it possible to semi-automate or automate the return of the relay transport means.

After examining not only the material of this type of lever but also its structure, it was found that by modifying it as follows, it was possible to obtain better results than levers with improved elastic structures and materials without compromising the lever's original functions, leading to the completion of this invention.

First, the lever is characterized by a configuration in which a roller is supported at the tip of the lever so as to come into contact with the descending barrier. The roller is displaced while rotating in contact with the descending barrier, so the impact on the barrier and the lever is further mitigated. In this case, it is more preferable that the roller is covered with a rubber-like material or is made of a rubber-like material in order to make it easier to rotate in contact with the barrier and further mitigate the impact. The lever on which the roller is supported not only mitigates the impact, but as described above, the roller that maintains contact with the barrier can semi-automate or automate the return of the relay transport means as the barrier rises.

Secondly, the detection means is characterized in that the lever located in the blocking space is equipped with a columnar part that contacts or collides with the lower end of the descending blocking wall and expands and contracts within the cylindrical part. The method of expanding and contracting the columnar part is simple and preferable to hold the columnar part with a compression spring provided within the cylindrical part or to hold it with compressed gas in the sealed space formed by the cylindrical part and the columnar part. As with the material of the roller, the tip of this columnar part is preferably a columnar part covered with a rubber-like material or a columnar part formed of a rubber-like material. The lever with the columnar part that expands and contracts not only absorbs the impact, but also plays an important role in semi-automating or automating the return of the relay conveying means when the blocking wall rises, as described above.

Furthermore, in addition to the material and configuration of the lever, the blocking mechanism of the conveying device can also include a blocking wall with special features, providing a means for solving the problems of the present invention.

That is, the blocking mechanism of the conveying device is characterized in that the blocking mechanism includes a protruding blocking wall, more preferably a protruding blocking wall made of a rubber-like material, attached to a position near the bottom end of the blocking wall where the blocking wall comes into contact with or collides with a lever, a lever supported by a roller, or a columnar part that constitutes the detection means when the blocking wall descends. This configuration prevents the blocking wall from coming into direct contact with the detection means, so that when a heavy, fire-resistant blocking wall descends at high speed, the impact is absorbed by the protruding part, and the impact on the blocking wall and the lever can be reduced.

More preferably, the blocking mechanism of the conveying device includes a lever, a lever supporting a roller, or a roller blocking wall having a roller attached to a position where the roller comes into contact with or collides with the columnar part, located near the lower end of the blocking wall. In this case, it is more preferable that the roller attached to the blocking wall is a roller covered with a rubber-like material or a roller made of a rubber-like material.

With such protruding blocking walls and roller blocking walls, when the blocking wall rises, the protruding parts and rollers come into contact with or collide with the lever, the lever supporting the roller, and the columnar part, making it possible to reverse the electrical signal or mechanical operation of the lever, and thus semi-automating or automating the return of the relay transport means.

Finally, we provide a cutoff mechanism that combines various parts such as rollers, pulleys, weights, and springs, does not require a power source, and solves the problems of the present invention. The cutoff mechanism is characterized by using a roller instead of a lever as the detection means.

That is, a transport facility capable of moving transported objects between rooms includes a transport device whose start and end are located between the rooms, an intermediate transport means located in the blocking space where a blocking wall between the rooms rises and falls, a locking means capable of stopping the intermediate transport means, and a detection means for detecting the blocking operation of the blocking wall, the intermediate transport means being a conveyor that responds to the transport device and is supported on one end of a rotating side plate that is supported around a pivot axis of a rotating side plate support member provided near the start or end of the transport device, and the detection means is provided near the start or end of the transport device. A first roller in the shape of an axle, which is supported by a fixed first detection roller support member and rotates in contact with the blocking wall, and a second roller in the shape of an axle, which is supported by a second detection roller support member fixed near the start or end of the conveying device, are connected so as to be capable of rotating in a counter-rotating manner, and the second roller is connected to one end of a rotating side plate having a relay conveying means supported at one end, and the other end of the rotating side plate is connected to a mechanical contraction device capable of supporting the relay conveying means and being retracted from the blocking space. This blocking mechanism is characterized in that, as the blocking wall descends, the relay conveying device retreats downward, and as the blocking wall rises, the relay conveying device returns to its original blocking space.

The mechanical contraction device is preferably a weighted wire, and more preferably a tension spring to ensure stable operation of the blocking mechanism.

To ensure that the first roller makes contact with the descending blocking wall, it is preferable that the first and second detection rollers are connected by a connecting arm, and that the first detection roller, the second detection roller, or the connecting arm is connected to an expandable means having one end fixed thereto, so that pressure is applied to the first detection roller. Depending on the connection method, this expandable means is preferably a compression spring or a tension spring, which has a simple structure.

In this way, by using rollers that rotate in contact with the descending barrier as the detection means, the heavy, fire-resistant barrier descending at high speed does not collide with the detection means; instead, only the rollers that make up the detection means rotate, so the barrier and detection means are not subjected to any shock, and the problem of damage to the transport equipment can be solved. In addition, since no power source is required, this device is suitable for use in the event of a fire. Furthermore, when the barrier is raised to restore operation after a fire has been extinguished or after a malfunction, the rollers that make up the detection means rotate in the reverse direction as the barrier rises, allowing the relay transport means to automatically return to normal.

The above describes the shutoff mechanism of the conveying device of the present invention. Since the shutoff mechanism is used in the event of a fire, the air piping system and the electrical wiring system must all be protected with non-flammable materials, and are preferably covered with non-flammable organic or metallic materials.

The transport device shutoff mechanism of the present invention allows the relay transport device to retreat from the shutoff space where the shutoff wall descends, without the shutoff wall, such as a fire shutter, coming down in the event of a fire coming into direct contact with the transport devices installed in each room, or with the transport equipment, such as the relay transport device that delivers transported goods between the transport devices installed in each room. In addition, because the relay transport device retreats and returns using conventional technology such as cylinders, springs, rollers, and pulleys, it can operate reliably in response to the descending and ascending of the shutoff wall. Furthermore, by applying levers, rollers, pistons, etc. made of a rubber-like material to the device that detects the operation of the shutoff wall, it is possible to reduce the impact caused by a collision between the shutoff wall and the detection device, and damage to the shutoff wall and the detection device can also be avoided.

Therefore, according to the present invention, in fire protection equipment that has been developed in response to the social background of preventing the spread of fire damage associated with the large scale of buildings such as automated warehouses and logistics centers equipped with transport equipment, particularly in fire protection equipment that separates rooms and buildings with blocking walls such as fire shutters in transport equipment that allows transported goods to be moved freely between rooms and buildings within a building, it is possible to provide a shutoff mechanism for a transport device that is safe, secure, reliable, and can be quickly restored without damaging the transport equipment.

This is a schematic diagram of the inside of a building, as can be found in typical automated multi-story warehouses and logistics centers, where transport equipment is installed that allows transported goods to move freely between rooms within the building, and fire shutters are provided as barriers that can separate the rooms. This is an oblique schematic diagram showing one embodiment of the present invention, in which a rotatable side plate that supports the relay roller and is attached to the conveying device is connected to an air cylinder so that it can be retracted and returned to the blocking space by the air cylinder. 2B is a schematic plan view of a blocking mechanism of the transport device shown in FIG. 2A. 2B is a side schematic view of the cutoff mechanism of the transport device shown in FIG. 2A. This is an oblique schematic diagram showing an embodiment of the present invention, in which a support member that supports an intermediate transport conveyor and is slidable on a sliding rail attached to the transport device is connected to an air cylinder so that the support member can be retracted and returned to the blocking space by the air cylinder. This is an oblique schematic diagram showing an embodiment of the present invention, in which a support member that supports the relay roller and is slidable on a sliding rail attached to the conveying device is connected to an air cylinder so that the support member can be retracted and returned from the blocking space by the air cylinder. This is an oblique schematic diagram showing an embodiment of the present invention, in which an intermediate transport conveyor, one end of which is rotatably supported, is connected by an air cylinder so that it can be retreated from and returned to the blocking space, as is the case with the blocking mechanism of a conveying device as defined in claim 3. This is an oblique schematic diagram showing an embodiment of the present invention, in which a conveyor extension/retraction support member that supports the relay conveyor in an extendable/retractable manner is connected to an air cylinder so that the conveyor can be retracted and returned to the interruption space by the air cylinder. This is an outline schematic diagram showing an embodiment of the present invention, in which a roller rotation support member that supports a relay roller and is supported by a spherical bearing so as to slide on a guide plate is connected to an air cylinder, and is an embodiment of the present invention. This is an oblique schematic diagram showing an embodiment of the present invention, in which an inclined plate having one end pivotally supported for rotation is connected to an air cylinder so as to be able to retreat from and return to the blocking space by the air cylinder, and which is an embodiment of the present invention, in which an oblique schematic diagram showing an interrupting mechanism of a conveying device included in claim 6 is shown. FIG. 11 is a schematic diagram of the piping of the high-pressure air supply system encompassed by claim 10, in one embodiment of the high-pressure air supply system of the air cylinder that drives the shutoff mechanism of the present invention, in which the air supply means to the air switching valve that switches the air intake and exhaust of the air cylinder is an air tank connected to a compressor. FIG. 17 is a schematic diagram of the piping of a high-pressure air supply system included in claim 11, which is an embodiment of a high-pressure air supply system for an air cylinder that drives the shutoff mechanism of the present invention and is provided with an auxiliary air tank in addition to the air tank of FIG. 8A. FIG. 17 is a schematic diagram of the piping of the high-pressure air supply system included in claim 11, which is one embodiment of the high-pressure air supply system of the air cylinder that drives the shutoff mechanism of the present invention and includes an auxiliary air tank to which a compressor is connected in addition to the air tank of FIG. 8A. FIG. 14 is a schematic diagram of the piping of the high-pressure air supply system encompassed by claim 12, in one embodiment of the high-pressure air supply system of the air cylinder that drives the shutoff mechanism of the present invention, in which the air supply means to the air switching valve that switches the intake and exhaust of the air cylinder is an air piping. This is a schematic oblique view showing an embodiment of the present invention, in which a rotatable side plate that supports the relay roller and is attached to the conveying device is connected to an electric cylinder so that it can be retracted and returned from the blocking space by the electric cylinder. This is an oblique schematic diagram showing an embodiment of the present invention, in which a rotatable side plate that supports the relay roller and is attached to the conveying device is connected to an air cylinder so that it can be retracted and returned from the blocking space by the air cylinder, and is also connected to a weight, showing a blocking mechanism of the conveying device as encompassed by claim 15. This is an oblique schematic diagram showing an embodiment of the present invention, in which a rotatable side plate that supports the relay roller and is attached to the conveying device is connected to an air cylinder so that it can be retracted and returned from the blocking space by the air cylinder, and is also connected to a spring, showing the blocking mechanism of the conveying device as encompassed by claim 16. This is an outline schematic diagram showing the shut-off mechanism of the conveying device of the present invention included in claim 18, which is one embodiment of the present invention, in which the power source for driving the electromagnetic switching valve of the air cylinder is obtained by rotation due to contact with the descending fire shutter of the power generating roller. This is a schematic side view showing an embodiment of the present invention, in which a support member that supports the relay roller and is slidable on a sliding rail attached to the conveying device is connected to a tension spring so that the support member can be retracted and returned from the blocking space by the tension spring. This is a schematic side view showing an embodiment of the present invention, in which a support member that supports the relay roller and is slidable on a sliding rail attached to the conveying device is connected to a tension spring so that it can be retracted and returned from the blocking space by a weight, as defined in claim 22. This is a schematic perspective view of an embodiment of the present invention showing a cutoff mechanism of a conveying device as defined in claim 23, in which a rotatable side plate suspending pin of a rotatable side plate that supports the relay roller and is attached to the conveying device is suspended by a relay roller release arm in which a fire shutter detection lever and a rotatable side plate suspending lever are integrated so that the relay roller retreats from the shielded space as the fire shutter descends. This is also a schematic perspective view of a cutoff mechanism of a conveying device as defined in claim 24, in which a bearing is provided on the suspending pin of the rotatable side plate. This is an oblique schematic diagram showing the blocking mechanism of a conveying device as encompassed by claim 25, in one embodiment of the present invention, in which the relay roller is supported by a relay roller release arm that is an integrated part of a fire shutter detection lever and a rotating side plate hanging pin of a rotatable rotating side plate that is attached to the conveying device and supports the relay roller, so that the relay roller is removed from the blocked space as the fire shutter descends, and the hanging of the rotating side plate is assisted by a tension spring. This is a schematic side view of an embodiment of the present invention, which is a blocking mechanism for a conveying device as defined in claim 26, in which a relay roller retraction arm, which integrates a detection lever and a relay roller, is rotatably supported, and a compression spring is used to press the relay roller so that it is held in place and retracted from the blocked space when the fire shutter is lowered. 1 is a schematic diagram showing a detection means of the present invention, which includes a detection lever, a change-over switch, and a signal wiring, and in which the detection lever is an elastic structure. 15B is a schematic diagram showing a detection means in which the detection lever in FIG. 15A is an elastic body covered with a rubber-like material. FIG. 15B is a schematic diagram showing a detection means in which the detection lever in FIG. 15A is an elastic body covered with a rubber balloon. 15B is a schematic diagram showing a detection means in which the detection lever in FIG. 15A is formed only of a rubber-like material. FIG. 15B is a schematic diagram showing a detection means in which the detection lever in FIG. 15A has a roller wheel covered with a rubber roller tire attached to the tip of an elastic arm. FIG. 15B is a schematic diagram showing a detection means in which the detection lever of FIG. 15A is a spring-type retractable detection lever. FIG. 15B is a schematic diagram showing a detection means in which the detection lever of FIG. 15A is an air piston type retractable detection lever. FIG. 15C is a schematic diagram showing a state in which the detection lever of FIG. 15B comes into contact with the fire shutter and activates the change-over switch. FIG. 15E is a schematic diagram showing a state in which the detection lever of FIG. 15E comes into contact with the fire shutter and activates the change-over switch. FIG. 16C is a schematic diagram showing a state in which the detection lever of FIG. 16B comes into contact with the fire shutter and activates the change-over switch. 1 is a schematic diagram showing a situation in which a fire shutter having a protrusion comes into contact with a detection lever to activate a change-over switch. FIG. This is a schematic diagram showing a situation in which a fire shutter equipped with a roller wheel covered with a rubber roller tire and an elastic arm comes into contact with a detection lever and activates a change-over switch. This is a schematic side view showing a situation in which the rubber roller tire of the fire shutter comes into contact with the detection lever and activates the relay roller retraction arm when a fire shutter having a roller wheel covered with a rubber roller tire attached to an elastic arm is applied to the blocking mechanism of the conveying device shown in Figure 14. This is a schematic side view showing the blocking mechanism of a conveying device as encompassed by claim 39, in which a roller connected to rotate in the opposite direction to a detection roller that contacts the fire shutter and a rotatable rotating side plate that supports the relay roller and is attached to the conveying device are connected by a wire so that the relay roller is removed from the blocked space by the rotation of the detection roller as the fire shutter descends, and the rotating side plate and the weighted wire are connected to hold the relay roller. This is a schematic side view showing the blocking mechanism of a conveying device as encompassed by claim 39, in which a roller connected to rotate in the opposite direction to a detection roller that contacts the fire shutter and a rotatable rotating side plate that supports the relay roller and is attached to the conveying device are connected by a wire so that the relay roller is removed from the blocked space by the rotation of the detection roller as the fire shutter descends, and the rotating side plate and a tension spring are connected to hold the relay roller. This is a schematic side view showing the blocking mechanism of a conveying device included in claim 43, in which a roller connected to rotate in the opposite direction to a detection roller that contacts the fire shutter and a rotatable side plate that supports the relay roller and is attached to the conveying device are connected by a wire so that the relay roller is removed from the blocking space by the rotation of the detection roller as the fire shutter descends, and the rotating side plate and the weighted wire are connected to hold the relay roller, and further, the detection roller and the conveying device are connected via a compression spring so as to press the detection roller against the fire shutter. This is a schematic side view showing the blocking mechanism of a conveying device included in claim 44, in which a roller connected to rotate in the opposite direction to a detection roller that contacts the fire shutter and a rotatable side plate that supports the relay roller and is attached to the conveying device are connected by a wire so that the relay roller is removed from the blocked space by the rotation of the detection roller as the fire shutter descends, and the rotating side plate and the weighted wire are connected to hold the relay roller, and further the detection roller and the conveying device are connected via a tension spring so as to press the detection roller against the fire shutter.

The present invention will be described in more detail below using an embodiment shown in the drawings. However, these are examples of representative forms of the present invention, and the present invention is not limited to these. Various modifications can be made without departing from the spirit of the present invention, and the present invention is limited only by the technical ideas described in the claims.

Figure 2A is a schematic perspective view showing the blocking mechanism of the conveying device included in claim 1, in which the rotating side plate 6 rotates around the rotating side plate pivot 6-1, the relay roller 1-71, which is a relay conveying means supported by the roller pivot 6-2 of the rotating side plate 6, is supported by the roller pivot 6-2 of the rotating side plate 6, and the rotating side plate 6, which can rotate around the rotating side plate pivot 6-1 attached to the rotating side plate support member/cylinder fixing part 7 of the side wall 1-512 of the roller conveyor 1-51 provided in the second room, which is the conveying device, is connected to the tip of the piston 5-1 of the air cylinder 5 and the rotating side plate support shaft 5-11 so that it can be retreated and returned from the blocking space by the air cylinder 5.

In this blocking mechanism, an intermediate roller 1-71 which transfers the transported goods from the conveying device 1-41 arranged in the first room 1-1 to the roller conveyor 1-51 which is a conveying device arranged in the second room 1-2 is located in the blocking space of the fire shutter 2-1 which descends along a guide rail 2-2 provided on the wall 1-3 which divides the room, and in order to retract and return the intermediate roller 1-71 from this blocking space, a rotating side plate 6 which can be rotated by a rotating side plate pivot shaft 6-1 attached to the rotating side plate support member/cylinder fixing part 7 of the side wall 1-512 of the roller conveyor 1-51 arranged in the second room is connected to the rotating side plate support shaft 5-11 at the tip of the piston 5-1 of the air cylinder 5 so as to be retracted and returned from the blocking space by an air cylinder 5, and a detection device 4 which detects the blocking operation of the fire shutter by colliding with the fire shutter 2-1 is provided. The detector 4 is composed of a detector lever 4-1 that collides with the fire shutter 2-1, a change-over switch 4-2 that converts the displacement of the detector lever into an electric signal, and a signal wiring 4-3 that transmits the electric signal. The air cylinder 5 is connected to air pipes 5-2 and 5-3 through which high-pressure air is supplied to double-act the piston 5-1, via air supply and exhaust ports 5-21 and 5-31.

This cut-off mechanism operates as follows, allowing the relay roller 1-71 to retreat from and return to the cut-off space of the fire shutter. When the fire shutter 2-1 descends along the guide rail 2-2, it collides with the detection lever 4-1, and the start of the cut-off operation of the fire shutter is transmitted as an electric signal from the change-over switch 4-2 through the signal wiring 4-3 to the air switching valve 5-7 (not shown) connected to the high-pressure air tank supply system 5-8 (described later). Based on this signal, high-pressure air is supplied from the air piping 5-3, causing the piston 5-1 to retract, causing the rotating side plate 6 to rotate around the rotating side plate rotation shaft 6-1, and the relay roller 1-71 journaled by the roller rotation shaft 6-2 of the rotating side plate 6 to retreat from the cut-off space (the rotating side plate 6 moves to the rotating side plate 6' indicated by the broken line. The same applies below). Conversely, when the fire shutter 2-1 rises and the switch lever 4-1 returns to its original position, a signal is sent via a similar path to the air switch valve 5-7, high-pressure air is supplied from the air piping 5-2, the piston 5-1 extends, the rotating side plate 6 rotates around the rotating side plate pivot shaft 6-1, and the relay roller 1-71 journalled by the roller pivot shaft 6-2 of the rotating side plate 6 returns to the blocking space.

In FIG. 2A, it appears that the blocking mechanism is only provided on the left side of the roller conveyor 1-51 provided in the second room in the conveying direction, but as is clear from FIG. 2B, which is a schematic plan view of the blocking mechanism of the conveying device shown in FIG. 2A, it is preferable to provide it on both sides of the roller conveyor 1-51 provided in the second room from the standpoint of stable operation of the blocking mechanism. However, depending on the type and size of the conveying device, it is possible to provide it on only one side.

Figure 2C is a schematic side view of the cutoff mechanism of the conveying device shown in Figure 2A, and is shown to clarify the positional relationship and operation of the cutoff mechanism.

Here, the roller conveyors consisting of rollers 1-411 and 1-511 are illustrated as the conveying devices 1-41 and 1-51 provided in the first and second rooms, but this is not limited thereto, and this blocking mechanism can be applied to any general conveyor such as a belt conveyor, a slat conveyor, etc. Also, a rotating side plate support member/cylinder fixing portion 7 is provided on the side wall 1-512 of the roller conveyor 1-51 provided in the second room, and the air cylinder 5 is fixed thereto with the air cylinder fixing member 5-4, and the rotating side plate 6 is connected to be rotatable by the rotating side plate rotation shaft 6-1, but it may be directly installed on the side wall 1-512 of the roller conveyor 1-51 provided in the second room. The same applies to the detection device.

Figure 3A is a schematic perspective view showing the blocking mechanism of the conveying device included in claim 2, in which a first relay belt conveyor support member 1-721 equipped with a first relay belt conveyor sliding member 1-722, which is arranged on a first relay belt conveyor sliding rail 1-723 that supports the first relay belt conveyor 1-72 as a relay conveying means and is attached to a belt conveyor 1-52 as a conveying device, is connected by a piston 5-1 and a first relay belt conveyor support member support part 5-12 so that it can be retreated and returned from the blocking space by an air cylinder 5. Here, the first relay belt conveyor sliding rail 1-723 needs to be arranged outside the blocking space where the fire shutter 2-1 descends.

The environment in which this blocking mechanism is deployed is the same as that shown in Figures 2A to 2C, and the operation of this blocking mechanism, from the operation of the fire shutter 2-1 to the operation of the air cylinder 5, is the same as that shown in Figures 2A to 2C, both in the lowering and raising of the fire shutter 2-1.

This blocking mechanism is characterized in that the first relay belt conveyor support member 1-722, which supports the first relay belt conveyor 1-72 equipped with the first relay belt conveyor sliding member 1-723, slides on the first relay belt conveyor sliding rail 1-723 attached to the belt conveyor 1-52, which is the transport device, by the piston 5-1 of the air cylinder 5, and the first relay belt conveyor 1-72 retreats from and returns to the blocking space. Here, a belt conveyor is illustrated as the relay transport means, but it is not limited to this and a general conveyor such as a roller conveyor can be applied, but it is necessary to design the length according to the width of the blocking space.

3B is a perspective schematic diagram showing the cutoff mechanism of the conveying device included in claim 2, which is different in that the second roller conveyor support member 1-731 equipped with the second intermediate roller 1-732, which is arranged on the second intermediate roller slide rail 1-733 attached to the roller conveyor 1-51 provided in the second room as the conveying device, is connected to the piston 5-1 and the second roller conveyor support member support part 5-13 so that it can be retreated and returned from the cutoff space by the air cylinder 5. In this case, too, the second intermediate roller slide rail 1-733 needs to be arranged outside the cutoff space where the fire shutter 2-1 descends. The operation of this cutoff mechanism is exactly the same as that of FIG. 3A, so details will be omitted.

Figure 4 is a schematic perspective view showing the blocking mechanism of the conveying device included in claim 3, in which the second relay belt conveyor support member 1-741 provided adjacent to the belt conveyor 1-52, which is the conveying device, supports the rotation center roller 1-742 of the second relay belt conveyor located at the most downstream in the conveying direction of the second relay belt conveyor 1-74, which is the relay conveying means, and the tip of the piston 5-1 and the rotation guide roller 1-743 of the second relay belt conveyor located upstream of the rotation center roller 1-742 of the second relay belt conveyor are connected by the support shaft 5-14 of the second relay belt conveyor so that the second relay belt conveyor 1-74 can be retreated and returned from the blocking space by the air cylinder 5.

The operation of this blocking mechanism, from the operation of the fire shutter 2-1 to the operation of the air cylinder 5, is the same as in Figures 2A to 2C, both for the lowering and raising of the fire shutter 2-1, but differs in that the second relay belt conveyor 1-74 rotates largely around the rotation center roller 1-742 of the second relay belt conveyor.

Here, a second relay belt conveyor 1-74 consisting of four rolls is shown as the relay transport means, but this is not limited to this, and the number of rolls is determined according to the blocking space into which the fire shutter 2-1 descends and the diameter of the rolls, etc. Also, the second relay belt conveyor 1-74 does not have to be a belt conveyor, and a general roller conveyor, etc. can also be applied.

Figure 5 is a schematic perspective view showing the blocking mechanism of the conveying device included in claim 4, in which an extendable roller extension arm 1-753 that extends and retracts to support the extendable roller 1-752 of the relay telescopic conveying conveyor 1-75, which is the relay conveying means, is attached to the side wall 1-522 of the belt conveyor 1-52 provided in the second room, which is the conveying device, and the tip of the piston 5-1 of the air cylinder 5 and the vertically moving roller 1-751 that constitutes the relay telescopic conveying conveyor 1-75 are connected by the relay telescopic belt conveyor support part 5-15 so that the relay telescopic conveying conveyor 1-75 can be retreated and returned from the blocking space by the air cylinder 5.

As for the operation of this blocking mechanism, the process from the operation of the fire shutter 2-1 to the operation of the air cylinder 5 is the same as in Figures 2A to 2C for both the lowering and rising of the fire shutter 2-1. When the fire shutter 2-1 is lowered, the piston 5-1 of the air cylinder 5 retracts, and when the fire shutter 2-1 is raised, the piston 5-1 of the air cylinder 5 extends. This blocking mechanism is characterized in that as the piston 5-1 retracts, the vertically movable roller 1-751 descends, and the extendable roller 1-752 that constitutes the relay telescopic transport conveyor 1-75 retracts along the roller extendable arm 1-753, causing the relay telescopic transport conveyor 1-75 to retreat from the blocking space. When the fire shutter 2-1 is raised, the opposite operation is performed.

Figure 6 is a schematic diagram showing the cutoff mechanism of the conveying device included in claim 5, in which a roller rotation support member 1-761, which supports the third relay roller 1-76 and is supported by a spherical bearing 1-762 so as to slide on a roller rotation shaft guide plate 1-763, is connected to the piston 5-1 of the air cylinder 5 and the third relay roller rotation support member support shaft.

In Figure 6, the detection device 4 consisting of the detection lever 4-1, change-over switch 4-2, and signal wiring is omitted, but the shutoff mechanism operates in the following process. When the fire shutter 2-1 descends along the guide rail 2-2, it collides with the detection lever 4-1, and the start of the fire shutter's shutoff operation is transmitted as an electrical signal from the change-over switch 4-2 via the signal wiring 4-3 to the air switch valve 5-7 (not shown) connected to the high-pressure air tank supply system 5-8 (described below). Based on this signal, high-pressure air is supplied from the air piping 5-2, causing the piston 5-1 to extend, and the roller rotation support member 1-761 supported by the spherical bearing 1-762 slides along the roller rotation shaft guide plate 1-763, causing the third relay roller 1-76 to lift upward. Furthermore, when the piston 5-1 extends, the roller rotation support member 1-761 supported by the spherical bearing 1-762 slides along the roller rotation shaft guide plate 1-763 and rotates perpendicular to the conveying direction of the conveying device 1-5 installed in the second room, causing the third relay roller 1-76 to retreat from the blocked space. Conversely, when the fire shutter 2-1 rises and the switching lever 4-1 returns to its original position, a signal is sent to the air switching valve 5-7 via a similar route, high-pressure air is supplied from the air piping 5-3, the piston 5-1 retracts, and the third relay roller 1-76 returns to the blocked space in the reverse process to the retreat.

Figure 7 is a schematic perspective view showing a blocking mechanism when there is a step between the conveying device 1-42 in the first room and the conveying device 1-52 in the second room. The relay inclined plate rotating roller 1-523, which is supported by the relay inclined plate rotating roller support member 1-524 provided adjacent to the conveying device 1-52 in the second room, is connected to the relay inclined plate 1-77, which is the relay conveying means, at the most downstream side in the conveying direction, and the tip of the piston 5-1 and the relay inclined plate 1-77 are connected by the relay inclined plate support shaft 5-16 of the relay inclined plate 1-77 so that the relay inclined plate 1-77 can be retreated and returned from the blocking space by the air cylinder 5. However, in the case of this Figure 7, the moving direction of the conveyed object is reversed from the previous embodiments, and it is an embodiment in which the conveyed object moves from the first room 1-1 to the second room 1-2.

The operation of this blocking mechanism is the same as that of the blocking mechanism shown in Figure 4, so a description will be omitted, but the relay inclined plate 1-77 does not need to be an inclined plate, and general conveyors such as roller conveyors, belt conveyors, and slat conveyors can be applied. When a conveyor capable of driving such a conveyor is applied instead of the relay inclined plate 1-77, the direction of movement of the transported goods is not limited, and the transported goods can be moved without hindrance whether in the direction from the first room 1-1 to the second room 1-2 or vice versa.

The above describes an embodiment in which an air cylinder is used as a double-acting means for operating the relay conveying means in the cutoff mechanism of the conveying device of the present invention. This is because an air cylinder is powered by compressed air, so it has a simple structure, is small in size, is a safe and clean device, can be used in high-temperature environments, and is suitable as a double-acting means to be driven in the event of a fire, and because compressed air has elasticity, there is less chance of damaging the relay conveying means of the present invention when it is retracted and restored.

For the air switching valve of an air cylinder, generally, a pneumatic switching valve and an electromagnetic switching valve are used, and the shutoff mechanism of the present invention is not particularly limited. From the viewpoint of not using electricity, an air switching valve is preferable, and a device using an all-pneumatic circuit is possible, but from the viewpoint of switching speed, an electromagnetic switching valve is superior and can be selected appropriately. In particular, since the shutoff mechanism of the present invention can use an emergency power source or a self-generating device, it is preferable to select from both in consideration of switching speed.

On the other hand, the high-pressure air that is the power source that realizes the characteristics of the air cylinder can be supplied in various ways, but a representative embodiment of an air supply method suitable for the cutoff mechanism of the present invention is shown in Figures 8A to 8D.

Figure 8A shows one embodiment of the high-pressure air supply system 5-8 of the air cylinder 5 that drives the cutoff mechanism of the present invention, in which the air supply means to the air switching valve 5-7 that switches the air supply and exhaust of the air cylinder 5 is the main air tank 5-81 connected via the compressor 5-84 and the switching valve 5-831. This is a schematic diagram of the piping of the high-pressure air supply system 5-8 included in claim 10.

As is clear from the diagram, the air cylinder 5 is connected to the main air tank 5-81, which is connected to the compressor 5-84 via an on-off valve 5-831, via the air switching valve 5-7 and throttle valves 5-5 and 5-7, and high-pressure air is supplied and exhausted through the air supply and exhaust ports 5-21 and 5-31. Here, the flow of high-pressure air is shown when the piston of the air cylinder 5 is retracted. The air switching valve 5-7 is not particularly limited, and either a pneumatic switching valve or an electromagnetic switching valve can be used.

In this way, by providing an air tank for storing high-pressure air connected to a compressor via an on-off valve as a high-pressure air supply means, there is no need to enlarge the device, and it is suitable for use only in the event of a fire, such as the shutoff mechanism of the conveying device of the present invention.

However, in a shutoff mechanism used in an emergency, it is preferable to have an auxiliary air tank via an on-off valve to deal with failure of the main air tank, etc. One embodiment of this is shown in Figure 8B. Figure 8B is one embodiment of the high-pressure air supply system 5-8 of the air cylinder 5 that drives the shutoff mechanism of the present invention, and is a schematic diagram of the piping of the high-pressure air supply system included in claim 11, which is equipped with an auxiliary air tank 5-82 in addition to the main air tank 5-81 in Figure 8A.

Moreover, it is even more preferable to have an auxiliary tank connected to the compressor via an on-off valve, and one embodiment of this is shown in Figure 8C. Figure 8C is one embodiment of the high-pressure air supply system 5-8 of the air cylinder 5 that drives the cutoff mechanism of the present invention, and is a schematic diagram of the piping of the high-pressure air supply system included in claim 11, which is equipped with an auxiliary air tank 5-82 to which a compressor 5-84 is connected via an on-off valve 5-842 to the main air tank 5-81 in Figure 8A.

In the worst case, the air supply means to the air cylinder 5 can be sufficiently operated by air piping formed from an air cylinder and an on-off valve. One embodiment of this is shown in Figure 8D. Figure 8D is one embodiment of the high-pressure air supply system 5-8 of the air cylinder 5 that drives the cutoff mechanism of the present invention, and is a schematic diagram of the piping of the high-pressure air supply system included in claim 12, in which the air supply means to the air switching valve 5-7 that switches the air supply and exhaust of the air cylinder 5 are air piping 5-2, 5-3. In this way, air cylinders are particularly superior from the standpoint of safety.

However, the double-acting means of the cutoff mechanism of the conveying device of the present invention is not limited to an air cylinder, and an electric cylinder is also preferably used. This is because an electric cylinder has characteristics different from an air cylinder. In particular, an electric cylinder has the great characteristic of being excellent in controllability, easy to adjust position and speed, and has a fast initial movement. Therefore, the high controllability can prevent damage, and the fast initial movement is suitable for the evacuation of relay conveying means that requires urgency. The need for a power source can be solved by applying an emergency power source or a self-generating device, as described below.

One embodiment of the cutoff mechanism for the conveying device of the present invention, which employs an electric cylinder as the double-acting means, is shown in Figure 9. Figure 9 is a schematic perspective view showing the cutoff mechanism for the conveying device included in claim 13, in which a rotatable side plate 6 attached to a rotating side plate support part/cylinder fixing member 7 provided on a side wall 1-512 of a belt conveyor 1-51 provided in the second room, which supports a first relay roller 1-71, is connected to the tip of the piston 10-1 of the electric cylinder 10 by the rotating side plate support shaft 10-11 so that it can be retreated and returned from the cutoff space by the electric cylinder 10.

The electric cylinder 10 is equipped with a motor 10-2 that double-acts the piston 10-1, and is fixed to an electric cylinder fixing member 10-5 of a rotating side plate support part/cylinder fixing member 7 provided on a side wall 1-512 of a belt conveyor 1-51 provided in the second room, and is connected to a power source 11 and a signal wiring 4-3 of a detection device 4 via a controller/PLC 10-3, and the electric cylinder 10 is driven according to instructions from the detection device 4.

As described above, the double-acting means for controlling the retraction and return of the relay conveying means of the cutoff mechanism of the conveying device of the present invention is preferably a cylinder, particularly an air cylinder or an electric cylinder, but in order to reduce the load on the power source related to the cylinder and to control the operation of the relay conveying means, it is preferable to use a mechanism in which a mechanical expansion and contraction device is provided in parallel with the cylinder. One embodiment of such a cutoff mechanism is shown in Figures 10A and B.

Figure 10A is a schematic perspective view showing the cutoff mechanism of the conveying device included in claims 14 and 15, in which an air cylinder auxiliary mechanism 9 equipped with a weight 9-1 as a mechanical expansion device is provided in parallel with the air cylinder 5 of the cutoff mechanism in Figure 2A. The wire connection part 9-21 of the rotating side plate 6 and the weight 9-1 are connected by a wire 9-2 via a wire guide pulley 9-22, and the first relay roller 1-71 supported by the roller rotation shaft 6-2 on the rotating side plate 6 is connected so that it can be retreated and returned from the cutoff space, promoting a quick retreat operation of the first relay roller 1-71.

Figure 10B is a schematic perspective view showing the cutoff mechanism of the conveying device included in claims 14 and 16, in which the air cylinder 5 of the cutoff mechanism in Figure 2A is provided with an air cylinder auxiliary mechanism 9 equipped with a spring 9-3 as a mechanical expansion and contraction device. The spring connection part 9-21 of the rotating side plate 6 and the spring connection part of the air cylinder fixing member 5-4 are connected by the spring 9-3. The spring 9-3 can be a compression spring or a tension spring depending on the purpose. In the case of a compression spring, it stably holds the first relay roller 1-71 supported by the roller rotation shaft 6-2 on the rotating side plate 6, and gives elasticity to the operation of the first relay roller 1-71 in the retraction, thereby helping to prevent damage to the first relay roller 1-71. In the case of a tension spring, it promotes a quick retraction operation of the first relay roller 1-71.

The above describes an embodiment of the cutoff mechanism of the conveying device of the present invention, which is equipped with a conveying device in a conveying facility capable of moving conveyed objects between rooms, a relay conveying means located in a cutoff space where a cutoff wall between the rooms rises and falls, a detection means for detecting the cutoff operation of the cutoff wall, and a double-acting means for stopping and driving the relay conveying means, in which the detection means uses a detection device composed of a lever that comes into contact with or collides with the cutoff wall, a switching device that converts the displacement of the lever into a signal, and wiring that transmits the signal to the double-acting means, and a cylinder is used as the double-acting means, and which is characterized by the retraction and return operations of the relay conveying means, as included in claims 1 to 17. Next, we will explain one embodiment of the cutoff mechanism of the present invention characterized by the detection means.

Fig. 11 is a schematic diagram showing the cutoff mechanism of the conveying device of the present invention included in claim 18, characterized in that the power generation shutter contact roller 11-1 is adopted instead of the detection device 4 as the detection means of the cutoff mechanism of Fig. 2A. As is clear from the figure, this detection means has a major feature in that the power generation shutter contact roller 11-1 and the amplifier-equipped generator 11-2 are fixed to the generator support member 11-4, and are directly connected to each other by the generator drive wire 11-2 so that they can rotate in conjunction with each other. When the power generation shutter contact roller 11-1 comes into contact with the descending fire shutter 2-1 and rotates, the power generated is transmitted through the wiring 11-5 to the electromagnetic switching valve 5-71 connected to the air cylinder 5, and the piston 5-1 of the air cylinder 5 contracts, and the first relay roller 1-71 journaled on the rotating side plate 6 retreats. Conversely, when the fire shutter 2-1 rises, the piston 5-1 extends, and the first relay roller 1-71 returns to its original position.

This self-powered detection device can also be connected to an electric cylinder to activate the cylinder.

When using a double-acting means that operates with a power source, the detection means is connected, for example, not only to the detection device 4 and the power-generating contact roller 11-1, but also to a fire alarm and/or sprinkler, although not shown. Similarly, although not shown, when a double-acting means that requires at least a small amount of power is used in the cutoff mechanism of the conveying device of the present invention, it is possible to switch to an emergency power source since a power outage is expected in the event of a fire.

Next, in a transport facility capable of moving transported objects between rooms, the transport device has a start and end located between the rooms, an intermediate transport means located in the blocking space where the blocking wall between the rooms rises and falls, a detection means for detecting the blocking operation of the blocking wall, and a double-acting means capable of stopping and driving the intermediate transport means. An embodiment is illustrated in which a double-acting means is used as a blocking mechanism for the transport device of the present invention, which combines the detection means and the double-acting means and is capable of moving with applied pressure during reciprocating movement in either direction without using a power source such as air or electricity.

Figure 12A is an embodiment of a blocking mechanism that uses a double-acting means that does not use a power source such as air or electricity, and is a schematic side view showing a blocking mechanism for a conveying device included in claim 21, in which a second relay roller support member 1-731 that supports a second relay roller 1-73 and can slide on a second relay roller sliding rail 1-733 attached to a roller conveyor 1-51 provided in the second room, which is a conveying device, is connected so that it can be retreated from and returned to the blocking space by a second relay roller tension spring drive device 12-3-1 using tension springs 12-31 and 12-32.

The meaning of "combining the detection means and the double-acting means" is based on the blocking mechanism which moves the second relay roller aside by linking the detection means consisting of the fire shutter detection lever 12-1, wire winding device 12-2, wire 12-21, and wire guide pulley 12-22 with the second relay roller tension spring drive device 12-3-1, which is a double-acting means consisting of the first tension spring 12-31, second tension spring 12-32, second tension spring stopper 12-33, and second tension spring stopper holding member 12-34. In other words, in this cutoff mechanism, when the fire shutter 2-1 descends, the fire shutter detection lever 12-1 rotates downward, the wire winding device 12-2 pulls the wire 12-21, the second tension spring stopper 12-33 held by the second tension spring stopper holding member 12-34 is released upward, and the first tension spring 12-31 and the second tension spring 12-32 move the second relay roller 1-73 out of the cutoff space. When the fire shutter 2-1 rises, the fire shutter detection lever 12-1 returns to its original position, causing the second tension spring stopper 12-33 to descend, and the second relay roller 1-73 can be returned, albeit semi-automatically. The first tension spring 12-31 does not necessarily have to be a spring, but is preferably a compression spring to cushion the movement of the second relay roller 1-73 and prevent damage from collision with the roller conveyor 1-51 provided in the second room.

Figure 12B is also one embodiment of the present invention, and is a schematic side view showing the blocking mechanism of the transport device included in claim 22, in which a second relay roller support member 1-731 that supports the second relay roller 1-73 and can slide on a second relay roller sliding rail 1-733 attached to a roller conveyor 1-51 provided in the second room, which is the transport device, is connected so that it can be retreated from and returned to the blocking space by a second relay roller weight drive device 12-3-2 using a weight 12-35.

In this case, the detection means operates with the same mechanism as in Figure 12A, but the second relay roller weight drive device 12-3-2 that retracts the second relay roller 1-73 is composed of a first tension spring 12-31, weight 12-35, weight stopper 12-36, and weight stopper holding member 12-37, and when the wire 12-21 is pulled, the weight stopper 12-36 is released, and the weight 12-35 falls, causing the second relay roller 1-73 to retract. The return of the second relay roller 1-73 and the first tension spring 12-31 are the same as in Figure 12A.

Furthermore, the present invention achieves the objective of realizing a shutoff mechanism that is safe, secure, and capable of dealing with problems reliably and quickly recovering without causing damage to the transport equipment due to the lowering of the shutoff wall, by combining various components and not requiring a power source. One embodiment of this is shown in Figures 13A, 13B, and 14.

Figure 13A is a schematic perspective view showing a blocking mechanism of a conveying device included in claim 23, in which a first relay roller 1-71 is supported by a roller rotation shaft 6-2, and a rotating side plate 6 that can rotate on a rotating side plate rotating shaft 6-1 attached to a side wall 1-512 of a roller conveyor 1-51 provided in a second room, which is a conveying device, is suspended by a first relay roller release arm 12-4, which is an integrated unit of a fire shutter detection lever 12-1 and a rotating side plate hanging lever 12-41, so that the first relay roller 1-71 retreats from the blocked space as the fire shutter descends. Figure 13A is a schematic perspective view showing a blocking mechanism of a conveying device included in claim 24, in which a bearing 12-42 is provided on the rotating side plate hanging pin 12-42.

The operation of this blocking mechanism is extremely simple. The first relay roller 1-71 is supported by the roller rotation shaft 6-2 around the first relay roller release arm pivot shaft 12-44 fixed to the first relay roller release arm support member 12-43 which supports the first relay roller release arm 12-4, which is an integrated combination of the fire shutter detection lever 12-1 and the pivot side plate hanging lever 12-41. The pivot side plate 6 attached to the side wall 1-512 of the roller conveyor 1-51 provided in the second room which can be rotated by the pivot side plate pivot shaft 6-1 is suspended. When the fire shutter 2-1 descends and collides with the fire shutter detection lever 12-1, the pivot side plate hanging lever 12-41 easily comes off the pivot side plate hanging pin 12-42 around the first relay roller release arm pivot shaft 12-44 as the pivot axis, and the first relay roller 1-71 retreats from the blocking space. Fitting the bearing 12-45 to the rotating side plate hanging pin 12-42 has the effect of making it easier for the rotating side plate hanging lever 12-41 to come off the rotating side plate hanging pin 12-42 with the relay roller release arm pivot shaft 12-44 as the pivot shaft. The work of raising the fire shutter 2-1 and restoring the blocking mechanism is not performed automatically, but because of the simple structure, the rotating side plate hanging lever 12-41 can be easily hung and restored to the rotating side plate hanging pin 12-42.

Figure 13B is a schematic perspective view showing the cutoff mechanism of the conveying device included in claim 25, in which the fire shutter detection lever 12-1 and the first relay roller release arm support member 12-43 in Figure 13A are supported by a rotating side plate suspension lever stabilizing spring 12-46 to suspend the rotating side plate 6. This rotating side plate suspension lever stabilizing spring 12-46 uses a tension spring, which enables stable delivery of the transported object by the first relay roller 1-71 and also has the effect of facilitating recovery work of the cutoff mechanism.

Figure 14 is a schematic side view of a cutoff mechanism for a conveying device included in claim 26, in which a fourth relay roller retraction arm 12-5, in which a fire shutter detection lever 12-1 and a fourth relay roller 1-78 are integrated, is rotatably supported by a fourth relay roller retraction arm support shaft 12-52 fixed to a support post 12-51 of the fourth relay roller retraction arm, and a fourth relay roller retraction arm holding spring 12-53 presses the fourth relay roller 1-78 to hold it so that the fourth relay roller 1-78 retracts from the cutoff space when the fire shutter 12-1 descends.

In this blocking mechanism, the fourth relay roller standby arm holding spring 12-53, which is a compression spring, is fixed by the fourth relay roller standby arm holding spring fixing member 12-532, and the fourth relay roller standby arm and standby arm connection part 12-531 press the fourth relay roller standby arm 12-5. Therefore, the fourth relay roller 1-78 stably transfers the transported goods between the roller conveyor 1-41 provided in the first room and the roller conveyor 1-51 provided in the second room. However, when the fire shutter 2-1 descends, it collides with the fire shutter detection lever 12-1 of the fourth relay roller waiting arm 12-5, and the fourth relay roller waiting arm 12-5 retracts the fourth relay roller waiting arm holding spring 12-53 and rotates around the fourth relay roller waiting arm support shaft 12-52, causing the fourth relay roller 1-78 to retreat from the blocking space (the fourth relay roller 1-78 retreats to the fourth relay roller 1-78' shown in broken lines). The blocking mechanism is restored when the fire shutter 2-1 rises, causing the fire shutter detection lever 12-1 to return to its original position, and the fourth relay roller waiting arm 12-5 is restored by the action of the fourth relay roller waiting arm holding spring 12-53, and the fourth relay roller 1-78 automatically returns to its original position.

Although various embodiments of the blocking mechanism that solve the problems of the present invention have been described above, these are merely examples, and the present invention is not limited to these, and various modifications can be made without departing from the scope of the claims. Furthermore, the present invention describes various embodiments of the material and configuration of the lever used in the detection means as a means for solving various problems common to the blocking mechanisms described above. The main purpose of these is to mitigate impact and damage to the blocking wall and blocking mechanism, and to facilitate the recovery of the transport equipment when the blocking wall is opened. Here, the detection device 4, which is composed of a detection lever 4-1, a changeover switch 4-2, and a signal wiring 4-3, is used as a representative example for the description, but it can also be applied to the detection lever 12-1 of another embodiment of the present invention.

Figure 15A is a schematic diagram showing a detection device in which the detection lever 4-1 is provided with an elastic material detection lever 4-11 and the elastic material detection lever 4-11 is pivotally supported by the changeover switch 4-2 in the case of a detection device 4 in which the detection means of the present invention is provided with a detection lever 4-1, a changeover switch 4-2, and a signal wiring 4-3. This elastic material detection lever 4-11 must be a structure having at least elasticity because it must convert the displacement caused by direct contact or collision with a heavy barrier wall descending at high speed, such as a fire shutter, into an electrical signal to start the retreat operation of the relay transport means. The same is true in the case of the detection lever 12-1 in which the displacement caused by contact or collision with a heavy barrier wall descending at high speed is converted into a mechanical operation. Therefore, in the following embodiment, a detection device 4 consisting of the detection lever 4-1, the changeover switch 4-2, and the signal wiring 4-3 will be described using a diagram as a representative example, but the description will be omitted because it is also applicable to the detection lever 12-1 of another embodiment of the present invention. It should only be listed if it has a special significance or effect.

However, contact or collision with a heavy barrier wall descending at high speed creates an impact beyond imagination, which poses the risk of damaging or destroying not only the detection lever that comes into contact with or collides with, but also the detection device and barrier wall. For this reason, it is preferable that the detection lever that comes into direct contact with or collides with the barrier wall is covered with a rubber-like material that cushions the impact.

FIG. 15B is a schematic diagram showing a detector 4 in which the elastic material detection lever 4-1 in FIG. 15A is provided with a rubber-like material-coated detection lever 4-12 in which an elastic material 4-121 is coated with a rubber-like material, and the rubber-like material-coated detection lever 4-12 is pivotally supported by a changeover switch 4-2. The rubber-like material 4-122 that coats the elastic material 4-121 is not particularly limited as long as it is an organic polymer material with a low elastic modulus, but natural rubber and synthetic rubber are preferable, and in particular, butadiene rubber, chloroprene rubber, nitrile rubber, and various thermoplastic elastomers are suitable. If repeated use is not taken into consideration, thermoplastic polymer materials can also be applied. In this case, the elastic material 4-121 may be the same elastic body as the elastic material detection lever 4-11 in FIG. 15A, but it is preferable that the elastic material 4-121 is an elastic structure suitable for coating a rubber-like material, for example, an elastic structure with good adhesion to a rubber-like material.

Figure 15C is a schematic diagram showing a detection device 4 in which the detection lever 4-1 in Figure 15A is equipped with a rubber balloon-coated detection lever 4-13 in which an elastic material 4-131 is coated with a rubber balloon 4-132, and the rubber balloon-coated detection lever 4-13 is pivotally supported by a changeover switch 4-2, for the same purpose. In this case, the elastic material 4-131 may be the same elastic material as the elastic material detection lever 4-11 in Figure 15A, but it is preferable that the elastic material be an elastic structure suitable for coating a rubber balloon.

Figure 15D is a schematic diagram showing a detection device for the same purpose, in which the detection lever 4-1 in Figure 15A is equipped with a rubber-like material detection lever 4-14 made only of a rubber-like material, and the rubber-like material detection lever 4-14 is pivotally supported by a change-over switch 4-2. In this case, since there is no elastic structure, it is preferable to use the same material as the rubber-like material used to cover the elastic structure, but one with higher elasticity.

Figure 15E is a schematic diagram showing a detection device for the same purpose, in which the detection lever 4-1 in Figure 15A is equipped with a detection lever 4-15 with a rubber-like material-covered roller, in which a roller wheel 4-151 covered with a rubber-like roller tire 4-152 is attached to the tip of an elastic arm 4-153, and the detection lever 4-15 with a rubber-like material-covered roller is rotatably supported by a change-over switch 4-2. This detection lever has the best shock mitigation effect because the roller rotates. Note that here, a rubber-like roller tire 4-152 is used, but it does not necessarily have to be a tire made of a rubber-like material, and there is no particular limitation as long as it is made of an organic polymer material. Also, the roller wheel 4-151 is not necessarily required, and it is more preferable for the entire roller to be a rubber-like tire.

Fig. 16A is a schematic diagram showing a detection device in which the detection lever 4-1 in Fig. 15A is a spring-type retractable detection lever 4-16, and the spring-type retractable detection lever 4-16 is pivotally supported by a changeover switch 4-2. As is clear from the figure, the spring-type retractable detection lever 4-16 is a piston in which a compression spring 4-163 is inserted into a cylindrical member 4-161, a columnar member 4-162 is fitted into the compression spring 4-163, and the compression spring 4-163 is directly connected to the compression spring 4-163, and the compression spring 4-163 contracts when it comes into contact with or collides with the blocking wall. In the figure, the columnar member 4-162 is made of a rubber-like material, but the columnar member 4-162 may be a columnar part covered with a rubber-like material or a columnar part only with a tip made of a rubber-like material.

Figure 16B is a schematic diagram showing a detection device in which the detection lever 4-1 in Figure 15A is an air piston type retractable detection lever 4-17, and the air piston type retractable detection lever 4-17 is rotatably supported by a changeover switch 4-2. This air piston type retractable detection lever 4-17 is an air cylinder in which a piston 4-172 is fitted inside a cylinder 4-171 to seal in air 4-173, and it contracts upon contact or collision with a blocking wall. In this case, the piston 4-172 needs to seal in the air 4-173, and a rubber-like material 4-174 needs to be fixed, coated, or integrally molded onto the tip of the body made of a material that slides against the cylinder 4-171.

The purpose of adopting such a detection lever is to avoid damage or destruction of the detection device and the barrier due to contact or collision with a heavy barrier descending at high speed, as well as the following: First, it is possible to increase the frictional force when it comes into contact with a barrier such as a fire shutter, thereby ensuring that the detection lever operates. Also, it becomes easy to reverse the electrical signal or mechanical operation of the detection lever when the barrier rises after a fire is extinguished or the barrier malfunctions, making it possible to semi-automate or automate the return of the relay transport means.


<Outline of rebuttal>
Unity of invention As mentioned above, the invention has been narrowed down to claims 1, 7-20, 27-40, and 48.

○Clarity Resolved by the above amendment

○Inventive step The mechanism in which " when the detection means detects the blocking operation of the blocking wall, the double-acting means rotates the rotating side plate around the rotating side plate pivot shaft in a first direction, thereby retracting the relay conveying means journaled on the roller pivot shaft from the blocking space, and when the detection means detects the return operation of the blocking wall from blocking, the double-acting means rotates the rotating side plate around the rotating side plate pivot shaft in a second direction that is opposite to the first direction, thereby returning the relay conveying means journaled on the roller pivot shaft to the blocking space " is neither disclosed nor suggested in any of the cited documents 1-3.
- Citation 1: When the shutter is lowered, the limit switch turns OFF, and the rod is pulled out from the rod insertion hole of the fixed boss. Therefore, there is no disclosure or suggestion of a mechanism in which "when the detection means detects the return movement of the blocking wall from blocking, the double-acting means rotates the rotating side plate around the rotating side plate pivot axis in a second direction that is the opposite direction to the first direction, thereby returning the relay conveying means journaled on the roller pivot axis to the blocking space ."
- Citation 2: Since this is an attempt to control the switching of the conveyor to a retracted position when an earthquake occurs, etc., both the problem and the mechanism are different from those of the present application, and there is no disclosure or suggestion of a mechanism in which "when the detection means detects the blocking operation of the blocking wall, the double-acting means rotates the rotating side plate around the rotating side plate pivot shaft in a first direction, thereby retracting the relay conveying means journaled on the roller pivot shaft from the blocking space, and when the detection means detects the return operation of the blocking wall from blocking, the double-acting means rotates the rotating side plate around the rotating side plate pivot shaft in a second direction that is opposite to the first direction, thereby returning the relay conveying means journaled on the roller pivot shaft to the blocking space ."
Reference 3: Since the operation of the driving means is controlled so that the position can be changed between a conveying position and a retracted position in order to prevent articles from falling when the driving force from the driving means is cut off, both the problem and the mechanism are different from those of the present application. There is no disclosure or suggestion of a mechanism in which "when the detection means detects the blocking operation of the blocking wall, the double-acting means rotates the rotating side plate around the rotating side plate pivot shaft in a first direction, thereby retracting the relay conveying means journaled on the roller pivot shaft from the blocking space, and when the detection means detects the return operation of the blocking wall from blocking, the double-acting means rotates the rotating side plate around the rotating side plate pivot shaft in a second direction that is opposite to the first direction, thereby returning the relay conveying means journaled on the roller pivot shaft to the blocking space ."

Figure 17A is a schematic diagram showing the state in which the rubber-like material-coated detection lever 4-12 in Figure 15B comes into contact with the fire shutter 2-1 and activates the changeover switch 4-2. Because it is coated with the rubber-like material 4-122, it is reliably rotated downward by frictional force as the fire shutter 2-1 descends, and a signal is sent from the changeover switch 4-2 to the cylinder via the signal wiring 4-3, allowing the relay transport means to retreat from the blocking space. Conversely, when the fire shutter 2-1 is raised to restore the blocking device, the rubber-like material-coated detection lever 4-12 is reliably restored, and a signal is sent from the changeover switch 4-2 to the cylinder via the signal wiring 4-3, allowing the relay transport means to return to its original position. As is clear from this figure, because it is coated with the rubber-like material 4-122, damage to the rubber-like material-coated detection lever 4-12, the detection device 4, and the blocking wall due to collision with the blocking wall can be prevented.

Figure 17B is a schematic diagram showing the situation in which the detection lever 4-15 with the rubber-like material-coated roller in Figure 16E comes into contact with the fire shutter 2-1 and activates the change-over switch 4-2. In this case, the rollers 4-151 and 4-152 rotate, achieving the object of the present invention with an effect greater than that of the rubber-like material-coated detection lever 4-12 shown in Figure 17B. In particular, the rotation of the rollers 4-151 and 4-152 during recovery makes it possible to more reliably activate the detection device 4.

Figure 17C is a schematic diagram showing the state in which the air piston type retractable detection lever 4-17 in Figure 17B comes into contact with the fire shutter 2-1 and activates the changeover switch 4-2. This detection lever uses air 4-173 as a power source to push the fire shutter 2-1 with the piston 4-171, allowing for more reliable operation of the detection device 4.

Furthermore, in addition to the material and configuration of such levers, by forming the blocking mechanism of the transport device with a protruding blocking wall or roller blocking wall, which has a protrusion or roller attached near the bottom end of the blocking wall at a position where it will come into contact with or collide with the various detection levers that make up the detection means when the blocking wall descends, direct contact between the blocking wall and the detection means is avoided, so that when a fire-resistant, heavy blocking wall descends at high speed, the impact is absorbed by the protrusion or roller, and the impact on the detection means and blocking wall can be reduced. In this case, too, when the blocking wall rises, the protrusions and rollers come into contact with or collide with the various detection levers, making it possible to reverse the electrical signals or mechanical operations of the various detection levers, and the return of the relay transport means can be semi-automated or automated.

Figures 18A and 18B show examples of these embodiments, but various combinations of detection levers and fire shutters are possible as blocking mechanisms. Figure 18A shows a combination of a rubber-like material-covered detection lever 4-12 and a fire shutter 2-1 equipped with a detection lever pressing protrusion 2-12, and Figure 18B shows a schematic diagram showing a situation in which a detection device 4 is activated by a combination of a rubber-like material-covered detection lever 4-12 and a fire shutter 2-1 equipped with a detection lever pressing roller 2-11. The figures show an example in which the detection lever pressing protrusion 2-12 is firmly fixed to the fire shutter with a rubber-like material, and the detection lever pressing roller 2-11 shows an example in which a roller wheel 2-111 journaled by an elastic arm 2-113 is covered with a rubber-like roller tire 2-112, and the elastic arm 2-113 and the fire shutter are fixed by welding or the like, but the present invention is not limited to these.

In particular, the fire shutter 2-1 equipped with a detection lever pressure roller 2-11 is an effective solution for achieving the objectives of the present invention, and one embodiment of the system is shown in Figure 19, including an overview of the blocking mechanism.

Figure 19 is a schematic side view showing a state in which a roller wheel 2-111 (not shown) fixed to the fire shutter 2-1 by an elastic arm 2-113 comes into contact with a roller covered with a rubber roller tire 2-112 and a fire shutter detection lever 12-1, and operates a fourth relay roller retraction arm 12-5 in a cutoff mechanism including a fire shutter 2-1 equipped with a detection lever pressing roller 2-11 in the cutoff mechanism of the conveyor device shown in Figure 14. As is clear from the figure, the detection lever pressing roller 2-11 equipped to the fire shutter reliably rotates and displaces the fire shutter detection lever 12-1 downward when the fire shutter is lowered, and the fourth relay roller retraction arm 12-5 rotates downward with the fourth relay roller retraction arm support shaft as a fulcrum, so that the fourth relay roller 1-78 can be retracted from the cutoff space (the fourth relay roller 1-78 is retracted to the fourth relay roller 1-78' indicated by the dashed line). Conversely, when the fire shutter 2-1 rises, the detection lever pressing roller 2-11 reliably rotates and displaces the fire shutter detection lever 12-1 upward when the fire shutter is lowered, and the fourth relay roller retract arm 12-5 rotates upward with the fourth relay roller retract arm support shaft as a fulcrum, allowing the fourth relay roller 1-78 to return to its original position.

Finally, Figures 20A to 20D show an embodiment of a cutoff mechanism that combines various parts such as rollers, pulleys, weights, and springs, does not require a power source, and solves the problems of the present invention. The cutoff mechanism is characterized by using a roller instead of a lever as the detection means.

Figure 20A is a schematic side view showing the blocking mechanism of the transport device included in claim 39, in which the second detection roller 13-2 that drives the first relay roller connected to rotate in the opposite direction to the first detection roller 13-1 that contacts the fire shutter 2-1, and the rotating side plate 6 that supports the first relay roller 1-71 with a roller rotation shaft 6-2 and rotates around the rotating side plate rotation shaft 6-1 attached to the roller conveyor 1-51 provided in the second room, which is the transport device, are connected by a wire so that the first relay roller 1-71 is retracted from the blocking space by the rotation of the first detection roller 13-1 that contacts the fire shutter as the fire shutter 2-1 descends, and the rotating side plate 6 and the rotating side plate holding weight 13-23 are connected to hold the first relay roller 1-71.

Here, the first detection roller 13-1 that comes into contact with the fire shutter is preferably a wheel-shaft-shaped pulley with a rubber-like material coated on the circumference that comes into contact with the fire shutter 2-1.

This blocking mechanism operates to move the first relay roller aside and return as follows: When the fire shutter 2-1 descends, the first detection roller 13-1, which is in contact with the fire shutter fixed to the first detection roller support member 13-11, rotates, and the second detection roller 13-2, which drives the first relay roller and is fixed to the second detection roller support member 13-21 connected by a wire or the like so as to rotate in the opposite direction, also rotates. Then, the first relay roller 1-71 is supported by the roller pivot shaft 6-2, and the pivot side plate drive wire 13-22 attached to the pivot side plate support shaft 13-25 of the pivot side plate 6 which rotates around the pivot side plate pivot shaft 6-1 attached to the roller conveyor 1-51 provided in the second room, which is the transport device, is wound up by the rotation of the second detection roller 13-2 which drives the first relay roller, and the pivot side plate support shaft 13-25 side of the pivot side plate 6 is lifted with the pivot side plate pivot shaft 6-1 as the fulcrum, and the pivot side plate holding weight 13-23 is lifted, causing the first relay roller 1-71 to rotate downward and move out of the way (the first relay roller 1-71 moves to the first relay roller 1-71' indicated by the dashed line. The same applies below). Conversely, when the fire shutter 2-1 rises, the two detection rollers 13-1 and 13-2 rotate in the opposite direction, causing the rotating side plate holding weight 13-23 to descend, and the roller support shaft 6-2 side of the rotating side plate 6 to be lifted with the rotating side plate pivot shaft 6-1 as the fulcrum, and the first relay roller returns to its original position.

This cut-off mechanism does not use a power source, but only utilizes the descending movement of the barrier wall, and provides a cut-off mechanism for the transport device that transfers transported goods and is installed between transport devices in different rooms that require fire protection equipment to separate rooms or buildings with barrier walls such as fire shutters, without being damaged when the barrier wall is closed, and that can be quickly restored when the barrier wall is opened.

Figure 20B is a schematic side view showing the cutoff mechanism of the conveying device covered by claim 39, which has exactly the same structure as Figure 20A except that a rotating side plate holding spring 13-24 is used instead of the rotating side plate holding weight 13-23, so a detailed explanation is omitted, but the rotating side plate holding spring 13-24 is preferably a tension spring, with one end connected to the rotating side plate support shaft 13-25 and the other end fixed to the floor or the like below.

Figure 20C is a schematic side view showing the blocking mechanism of a conveying device included in claim 43, which has the same structure as the blocking mechanism of Figure 20A, but in order to ensure contact between the first detection roller 13-1 that contacts the fire shutter and the fire shutter 2-1 and prevent idling, the first detection roller 13-1 that contacts the fire shutter and the second detection roller 13-2 that drives the first relay roller are connected by a detection roller connecting arm 13-3, and the side wall 1-512 of the roller conveyor 1-51 provided in the second room and the second detection roller 13-2 that drives the first relay roller are connected by a compression spring, so that the first detection roller 13-1 that contacts the fire shutter presses the fire shutter 2-1.

Figure 20D is also a schematic side view of the cutoff mechanism of the conveying device included in claim 44, which has the same purpose as Figure 20C, and in order to ensure contact between the first detection roller 13-1 that contacts the fire shutter and the fire shutter 2-1 and prevent idling, the first detection roller 13-1 that contacts the fire shutter is connected to the second detection roller 13-2 that drives the first relay roller by the detection roller connecting arm 13-3, and the side wall 1-512 of the roller conveyor 1-51 provided in the second room is connected to the second detection roller 13-2 that drives the first relay roller by a tension spring, so that the first detection roller 13-1 that contacts the fire shutter presses the fire shutter 2-1.

The transport site shutoff mechanism of the present invention is not specifically illustrated or described because it operates after a fire has occurred, but all air piping and electrical wiring systems must be protected with non-combustible materials and must be coated with non-combustible organic or metallic materials.

By explaining the present invention in detail using an embodiment that specifically reflects the technical concept of the blocking mechanism of the transport device of the present invention, it has become clear that the present invention functions effectively as a means of solving the problems of the prior art, but the present invention is not limited to the embodiment, but is limited only to the technical concept described in the claims.

The blocking mechanism of the present invention is described as a blocking mechanism for transport equipment in automated warehouses and logistics centers that have a large total floor area, many enclosed spaces with few windows, and many transport equipment. However, in factories, hospitals, restaurants, and other places where logistics are expected to span different rooms, fire protection equipment that separates rooms with blocking walls is required, and transport equipment is installed in the space where the blocking walls descend, so the blocking mechanism of the present invention can be used in a wide range of applications. The principle of the blocking mechanism of the present invention can also be used in theaters, movie theaters, schools, and other places that have a large total floor area and require fire protection equipment that separates rooms with blocking walls.

1 Building equipped with a conveying device and a fire shutter equipped with a blocking device between rooms 1-1 First room 1-2 Second room 1-3 Wall 1-4 Conveying device equipped in the first room 1-41 Roller conveyor equipped in the first room 1-411 Roller 1-412 Side wall 1-42 Belt conveyor equipped in the first room 1-421 Belt 1-422 Side wall 1-5 Conveying device equipped in the second room 1-51 Roller conveyor equipped in the second room 1-511 Roller 1-512 Side wall 1-52 Belt conveyor equipped in the second room 1-521 Belt 1-522 Side wall 1-523 Relay inclined plate rotating roller 1-524 Relay inclined plate rotating roller support member 1-6 Relay conveying device 1-7 Relay conveying device of the present invention 1-71 First relay roller 1-72 First relay belt conveyor 1-721 First relay belt conveyor support member 1-722 First relay belt conveyor sliding member 1-723 First relay belt conveyor sliding rail 1-73 Second relay roller 1-731 Second relay roller support member 1-732 Second relay roller sliding member 1-733 Second relay roller sliding rail 1-74 Second relay belt conveyor 1-741 Second relay belt conveyor support member 1-742 Second relay belt conveyor rotation center roller 1-743 Second relay belt conveyor rotation guide roller 1-75 Relay expandable belt conveyor 1-751 Up-down moving roller 1-752 Expandable roller 1-753 Roller expandable arm 1-754 Roller expandable guide member 1-76 Third relay roller 1-761 Roller rotation support member 1-762 Spherical bearing 1-763 Roller pivot shaft guide plate 1-77 Relay inclined plate 1-771 Relay inclined plate support roller 1-78 Fourth relay roller 2 Fire shutter equipment 2-1 Fire shutter 2-11 Detection lever pressing roller 2-111 Roller wheel 2-112 Rubber roller tire 2-113 Elastic arm 2-12 Detection lever pressing protrusion 2-2 Guide rail 2-3 Sensor 2-4 Automatic switch 3 Shut-off mechanism of conveyor equipment 4 Detection device 4-1 Detection lever 4-11 Elastic material detection lever 4-12 Rubber-like material coated detection lever 4-121 Elastic material 4-122 Rubber-like material 4-13 Rubber balloon coated detection lever 4-131 Elastic material 4-132 Rubber balloon 4-14 Rubber-like material detection lever 4-15 Detection lever with rubber-like material coated roller 4-151 Roller wheel 4-152 Rubber roller tire 4-153 Elastic arm 4-16 Spring-type elastic detection lever 4-161 Cylindrical member 4-162 Pillar member 4-163 Compression spring 4-17 Air piston type elastic detection lever 4-171 Piston 4-172 Cylinder 4-173 Air 4-174 Rubber-like material 4-2 Change-over switch 4-3 Signal wiring 5 Air cylinder 5-1 Piston 5-11 Rotating side plate support shaft 5-12 First relay belt conveyor support member support part 5-13 Second relay roller support member support part 5-14 Second relay belt conveyor support shaft 5-15 Relay elastic belt conveyor support part 5-16 Relay inclined plate support shaft 5-17 Third relay roller rotation support member support shaft 5-2, 5-3 Air piping 5-21, 5-31 Air supply and exhaust port 5-4 Air cylinder fixing member 5-5, 5-6 Throttle valve 5-7 Air switching valve 5-71 Electromagnetic switching valve 5-8 High-pressure air supply system 5-81 Main air tank 5-82 Auxiliary air tank 5-83 Air cylinder-air tank on-off valve 5-831 First on-off valve 5-832 Second on-off valve 5-833 Third on-off valve 5-834 Fourth on-off valve 5-84 Air tank-compressor on-off valve 5-841 First on-off valve 5-842 Second on-off valve
6 Rotating side plate 6-1 Rotating side plate pivot shaft 6-2 Roller pivot shaft 7 Rotating side plate support member and cylinder fixing member 8 Air cylinder fixing member 9 Air cylinder auxiliary mechanism 9-1 Weight 9-2 Wire 9-21 Wire connection part of rotating side plate 9-22 Wire guide pulley 9-3 Spring 9-31 Spring connection part of rotating side plate 9-32 Spring connection part of air cylinder fixing member 10 Electric cylinder 10-1 Piston 10-11 Rotating side plate support shaft 10-2 Motor 10-3 Controller/PLC (Programmable Logic Controller)
10-4 Wiring 10-5 Electric cylinder fixing member 11 Power source 11-1 Power generation shutter contact roller 11-2 Generator drive wire 11-3 Generator with amplifier 11-4 Generator device support member 11-5 Wiring 12 Shutter detection and relay conveyor retraction integrated cutoff device 12-1 Fire shutter detection lever 12-2 Wire winding device 12-21 Wire 12-22 Wire guide pulley 12-3-1 Second relay roller tension spring drive device 12-31 First tension spring 12-32 Second tension spring 12-33 Second tension spring stopper 12-34 Second tension spring stopper holding member 12-3-2 Second relay roller weight drive device 12-31 First tension spring 12-35 Weight 12-36 Weight stopper 12-37 Weight stopper holding member 12-4 First relay roller release arm 12-41 Rotating side plate suspension lever 12-42 Rotating side plate suspension pin 12-43 First relay roller release arm support member 12-44 First relay roller release arm rotation shaft 12-45 Bearing 12-46 Rotating side plate suspension lever stabilizing spring 12-5 Fourth relay roller shunt arm 12-51 Fourth relay roller shunt arm support pillar 12-52 Fourth relay roller shunt arm support shaft 12-53 Fourth relay roller shunt arm holding spring 12-531 Fourth relay roller shunt arm holding spring and shunt arm connection part 12-532 Fourth relay roller shunt arm holding spring fixing member 13 Rotary cutoff device 13-1 First detection roller that contacts the fire shutter 13-11 First detection roller support member 13-12 Reverse rotation drive wire 13-2 Second detection roller that drives the first relay roller 13-21 Second detection roller support member 13-22 Rotating side plate drive wire 13-23 Rotating side plate holding weight 13-24 Rotating side plate holding spring 13-25 Rotating side plate support shaft 13-3 Detection roller connecting arm 13-4 Detection roller pressing compression spring 13-5 Detection roller pressing tension spring

Claims (30)

In a conveying facility capable of moving an object between rooms,
A conveying device having a start and end located between the rooms;
a relay conveying means located in a blocking space where the blocking wall between the rooms rises and falls;
A detection means for detecting a blocking operation of the blocking wall;
A double-acting means capable of stopping and driving the relay conveying means,
The relay conveying means is a conveyor responsive to the conveying device, and the relay conveying means is supported by a roller pivot shaft disposed at an opposite end of a rotating side plate having one end pivotally supported by a rotating side plate pivot shaft attached to an outer surface of a rotating side plate support member provided on an outer wall surface of a side wall near a start end or a finish end of the conveying device,
the rotating side plate and one end side of the double-acting means are connected, and the rotating side plate support member and the other end side of the double-acting means are connected at a position below the rotating side plate rotation shaft and below the roller rotation shaft when the blocking wall is raised and the relay conveying means is in a position located in the blocking space,
When the detection means detects the blocking operation of the blocking wall, the double-acting means on the outer surface of the rotating side plate support member rotates the rotating side plate about the rotating side plate pivot shaft in a first direction, thereby retracting the relay conveying means pivoted on the roller pivot shaft from the blocking space, and when the detection means detects the return operation of the blocking wall from blocking, the double-acting means on the outer surface of the rotating side plate support member rotates the rotating side plate about the rotating side plate pivot shaft in a second direction that is opposite to the first direction, thereby returning the relay conveying means pivoted on the roller pivot shaft to the blocking space.
A shutoff mechanism for a conveying device. The shutoff mechanism for the conveying device according to claim 1, characterized in that the double-acting means is an air cylinder that connects the rotating side plate and the rotating side plate support member, and the double-acting means rotates the rotating side plate in the first or second direction around the rotating side plate rotation axis by reciprocating a piston according to an instruction from the detection means. The cutoff mechanism for the conveying device according to claim 2, characterized in that the air supply switching means for the air cylinder is an air-operated switching valve. The cutoff mechanism for the conveying device according to claim 2, characterized in that the air supply switching means for the air cylinder is an electromagnetic switching valve. The shutoff mechanism for a conveying device according to any one of claims 2 to 4, characterized in that the air supply means to the air cylinder is an air tank that stores high-pressure air and is connected to a compressor via an on-off valve. The shutoff mechanism for a conveying device according to any one of claims 2 to 5, characterized in that, as an air supply means to the air cylinder, in addition to an air tank that stores high-pressure air and is connected to a compressor via an on-off valve, an auxiliary air tank that is connected to the air tank via an on-off valve and/or an auxiliary air tank that is connected to the compressor via an on-off valve, is provided. The shutoff mechanism for a conveying device according to any one of claims 2 to 6, characterized in that the air supply means to the air cylinder is an air pipe. The shutoff mechanism for the conveying device according to claim 1, characterized in that the double-acting means is an electric cylinder that connects the rotating side plate and the rotating side plate support member, and the double-acting means rotates the rotating side plate in the first or second direction around the rotating side plate rotation axis by reciprocating a piston according to an instruction from the detection means. The shutoff mechanism for the conveying device described in claim 1, characterized in that the double-acting means is a mechanism in which an air cylinder or an electric cylinder that connects the rotating side plate and the rotating side plate support member and a mechanical extension device connected to the rotating side plate are arranged in parallel, and the double-acting means rotates the rotating side plate in the first or second direction around the rotating side plate rotation axis by reciprocating a piston according to an instruction from the detection means. The cutoff mechanism for a conveying device according to claim 9, characterized in that the mechanical expansion and contraction device is a weighted wire. The shutoff mechanism of the conveying device according to claim 9, characterized in that the mechanical expansion and contraction device is a compression spring or a tension spring. The cutoff mechanism for a transport device according to any one of claims 1 to 11, characterized in that the detection means comprises a lever located in the cutoff space and contacting or colliding with the cutoff wall when the cutoff wall descends, a switching device that converts the displacement of the lever into a signal, and wiring that transmits the signal to the double-acting means and/or the transport device. The cutoff mechanism for the conveying device described in claim 4 is characterized in that the detection means is a mechanism in which a wheel-shaft-shaped power generating roller that rotates in contact with the blocking wall is directly connected to a rotary generator equipped with an amplifier so that they can rotate in conjunction with each other, and the power generated by the power generating roller rotating in contact with the blocking wall is transmitted to an electromagnetic valve connected to the air cylinder, thereby retracting the piston of the air cylinder. The shutoff mechanism for a conveying device according to any one of claims 1 to 11, characterized in that the detection means transmits a signal from a fire alarm and/or a sprinkler to the double-acting means and/or the conveying device through wiring. The cutoff mechanism for a conveying device according to any one of claims 1 to 12 and 14, characterized in that the double-acting means requires a power source to operate the double-acting means, and the power source can be switched to an emergency power source. The cutoff mechanism for a conveying device according to claim 12, characterized in that in the detection means, the lever located in the cutoff space is an elastic structure. The cutoff mechanism of the conveying device according to claim 16, characterized in that the lever is covered with a rubber-like material. The shutoff mechanism for a conveying device according to claim 16, characterized in that the lever is enclosed within a rubber balloon. The cutoff mechanism of the conveying device according to claim 16, characterized in that the lever is made of a rubber-like material. The cutoff mechanism for a conveying device according to claim 16, characterized in that a roller is supported at the tip of the lever so as to come into contact with the descending cutoff wall. The cutoff mechanism for a conveying device according to claim 20, characterized in that the roller is a roller covered with a rubber-like material or a roller made of a rubber-like material. The blocking mechanism of the conveying device according to claim 12, characterized in that the detection means is configured such that the lever located in the blocking space is provided with a columnar part that contracts within the cylindrical part by contacting or colliding with the lower end of the descending blocking wall. The cutoff mechanism of the conveying device according to claim 22, characterized in that the columnar part is held by a compression spring provided inside the cylindrical part. The shutoff mechanism of the conveying device described in claim 22, characterized in that the columnar part is held by compressed gas in a sealed space formed by the cylindrical part and the columnar part. The cutoff mechanism for a conveying device according to any one of claims 22 to 24, characterized in that the tip of the columnar part is a columnar part coated with a rubber-like material or is a rubber-like material. The blocking mechanism of a conveying device described in any one of claims 16 to 25, further comprising a protruding blocking wall having a protrusion near the lower end of the blocking wall at a position that will contact or collide with the lever constituting the detection means when the blocking wall descends. The blocking mechanism for a conveying device according to claim 26, characterized in that the protruding portion of the protruding blocking wall is formed of a rubber-like material. The blocking mechanism of a conveying device described in any one of claims 16 to 25, further comprising a roller blocking wall having a roller attached near the lower end of the blocking wall at a position that contacts or collides with the lever constituting the detection means when the blocking wall descends. The blocking mechanism of the conveying device according to claim 28, characterized in that the roller of the roller blocking wall is a roller covered with a rubber-like material or a roller formed of a rubber-like material. The shutoff mechanism for a conveying device according to any one of claims 1 to 29, characterized in that in the shutoff mechanism for the conveying device, the double-acting means is a piston that extends or retracts when high-pressure air is supplied from an air piping, the detection means is equipped with electrical wiring that transmits detection by the detection means as an electrical signal, and the air piping and the electrical wiring are coated with a non-flammable organic material and/or metal.

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