JP7206457B2 - Shut-off mechanism of conveying device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blocking mechanism for a conveying device capable of coping with separation by a blocking wall such as a fire shutter on a conveying path of the conveying device.

Japanese Unexamined Patent Application Publication No. 2002-100000 proposes a structure for preventing damage to a conveying portion of a conveying device due to the falling of a blocking wall. According to this patent document 1, a transported article side-drop prevention guide is used, and when the blocking wall descends and collides with the guide, an auxiliary roller of a relay member is rotated by a swing arm.

JP-A-10-59521

A blocking wall such as a fire shutter, for example, descends under its own weight. There is a risk that the swing arm and the roller to be retracted may be damaged by the falling force. Also, if the blocking wall has a function of detecting an obstacle, it will stop in the middle and the blocking process itself will not be possible.

In order to solve such a problem, the present invention provides a barrier wall (of a type that descends or rises) in advance even when a conveying device is arranged at a position that interferes with the operation of the barrier such as a fire shutter. or a type that slides from the side, etc.). It is an object of the present invention to provide a shutoff mechanism for a conveying device that shuts off safely.

In order to achieve the above object, the present invention provides detection means for detecting the blocking operation of a blocking wall, and biasing means for biasing a conveying path in a gap corresponding to the blocking position of the blocking wall in a direction to retreat. and wherein the biasing means retracts the conveying path when the detection means detects the blocking operation of the blocking wall.

Further, the present invention is characterized in that the urging means comprises an air circuit, and the air circuit is switched and energized according to the detection result of the detecting means.

Further, according to the present invention, the urging means includes a spring mechanism in addition to the air circuit, and the spring mechanism applies a pulling force in the direction of retracting the conveying path, and the detection result of the detection means detects the air pressure. It is characterized in that the circuit is switched to energize the conveying path in the retracting direction.

Further, according to the present invention, the urging means comprises a weighted wire mechanism attached to the air circuit, and the wire mechanism applies a pulling force in the direction of retracting the conveying path, and according to the detection result of the detecting means, It is characterized in that the air circuit is switched to urge the conveying path in a retracting direction.

Further, the present invention is characterized in that the air circuit is provided with air supply means.

Further, the present invention is characterized in that the air supply means is an air tank.

Further, the present invention is characterized in that the air supply means is composed of an air tank and an auxiliary tank.

Moreover, the present invention is characterized by further comprising a compressor for supplying air to the air tank and/or the auxiliary tank.

Further, the present invention is characterized in that the air supply means uses residual air in the air wiring.

Moreover, the present invention is characterized in that the wiring that constitutes the air circuit is made of a noncombustible material and/or a metal pipe.

Moreover, the present invention is characterized in that the metal pipe is a copper pipe.

Further, in the present invention, the air circuit is provided with an air switching circuit by the detection mechanism and an electromagnetic valve for switching the air when the power is turned off, and the air is switched when the blocking wall shuts off and/or when the power is turned off. It is characterized by

Further, the present invention is characterized in that the detection mechanism detects the blocking operation by any one of a wall surface of the blocking wall, a wall side, or a projection on the wall surface, or a combination thereof.

Further, the present invention is characterized in that the switching of the air circuit includes activation based on notification information from an alarm device such as a fire alarm or smoke detector.

Further, the present invention is characterized in that the detection mechanism includes a detection pin for detecting the blocking operation of the blocking wall and/or a flexible cord-like member.

Also, the present invention is characterized in that the urging means retracts the conveying path by any one of rotational drive, sliding drive, lateral drive, or a combination thereof.

Further, the present invention comprises detection means for detecting the blocking operation of the blocking wall, and biasing means for biasing the conveying path in the gap corresponding to the blocking position of the blocking wall in a direction to retreat, wherein the detection means comprises the detection means. and the urging means is driven by an emergency power supply to provide a shutoff mechanism for a conveying device.

Further, the present invention is characterized in that the biasing means is driven by a motor.

Further, the present invention is characterized in that wiring to the detection means and the evacuation means is made of incombustible material and/or metal pipe.

Moreover, the present invention is characterized in that the metal pipe is a copper pipe.

Also, the present invention is characterized in that the urging means retracts the conveying path by any one of rotational drive, sliding drive, lateral drive, or a combination thereof.

Further, the present invention is characterized in that the emergency power supply automatically detects a power failure and/or power failure and switches to the emergency power supply.

Also, the present invention is characterized in that the urging means is activated by the operation of any one or a combination of fire alarms, smoke detectors or sprinkler systems.

Also, the present invention is characterized in that the detection mechanism for detecting the blocking operation of the blocking wall is based on either light detection, sound wave detection, or radio.

Also, the present invention is characterized in that the urging means retracts the conveying path by any one of rotational drive, sliding drive, lateral drive, or a combination thereof.

Further, the present invention comprises detection means for detecting the blocking operation of the blocking wall, and retraction means for retracting the conveying path at a gap corresponding to the blocking position of the blocking wall, wherein the detection means is the movement of the blocking wall. and a support portion for supporting the retracting means, wherein the retracting means holds the conveying path and engages an engaging portion that engages the supporting portion of the detecting means and the engaging portion. The present invention provides a blocking mechanism for a conveying device, characterized in that the conveying path is retracted when the joint is released.

Further, the present invention is characterized in that the detection section of the detection means detects movement of at least part of the blocking wall.

Further, the present invention is characterized in that the blocking wall has a protrusion, and the detection section of the detection means detects movement of the protrusion.

Further, the present invention is characterized in that the detection portion of the detection means includes a first contact portion that contacts at least a portion of the blocking wall and a second contact portion that contacts a wall surface of the blocking wall. do.

Further, the present invention is characterized in that the detection portion of the detection means has an inclination, and the blocking wall expands the inclination to release the engagement.

Moreover, the present invention is characterized by further comprising a means for removing the conveyed article on the conveying path and/or part of the conveying path.

According to the present invention, even if the transport path is arranged at a position that interferes with the operation of the blocking wall, such as a fire shutter, the blocking operation of the blocking wall is detected in advance and the transport path is retracted at a predetermined timing. Therefore, it is possible to safely shut off without breaking or damaging the device in the transport path or damaging the function of the shut-off wall.

In addition, according to the present invention, since the evacuation of the conveying path arranged in the gap is made possible by air drive or mechanical drive, it does not depend on the electric power of the normal electric system, and in the event of a failure such as a power failure, it can be used in an emergency. By using a normal power supply, it is possible to respond even when the normal power supply is cut off in the event of a disaster or the like.

Further, according to the present invention, when the wall surface of the blocking wall is used, even if there is a function to automatically stop the blocking wall along with blocking operation such as lowering of the blocking wall, it is not affected.

Furthermore, in the case of buildings, etc., when they are constructed beyond a predetermined floor area, in order to respond to disasters such as fires and earthquakes, for example, the Fire Service Law refers to the Building Standards Law and fireproof shutters Fire prevention equipment such as is to be provided, and power supply interruptions may occur in the event of a disaster. I can handle it. In addition, it is possible to prevent the shutter from stopping in the middle due to the detection of an obstacle such as a disaster prevention shutter and not being useful for the fire prevention function.

It is a perspective view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on one Embodiment of this invention. It is a top view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on one Embodiment of this invention. It is a side view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on one Embodiment of this invention. FIG. 5 is a diagram illustrating a pneumatic supply route according to an embodiment when an air cylinder is used for the shutoff mechanism of the conveying device of the present invention; FIG. 10 is a diagram illustrating a pneumatic supply route according to a second embodiment in which an air cylinder is used for the blocking mechanism of the conveying device of the present invention; FIG. 11 is a diagram illustrating a pneumatic supply route according to a third embodiment when an air cylinder is used for the shutoff mechanism of the conveying device of the present invention; FIG. 11 is a diagram illustrating a pneumatic supply route according to a fourth embodiment when an air cylinder is used for the shutoff mechanism of the conveying device of the present invention; It is a perspective view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 2nd Embodiment of this invention. It is a perspective view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 3rd Embodiment of this invention. FIG. 4 is a configuration diagram of a detection mechanism for detecting a blocking operation according to one embodiment used in the blocking mechanism of the conveying device of the present invention; It is a figure explaining operation|movement of the detection mechanism which detects the interruption|blocking operation|movement based on one Embodiment used for the interruption|blocking mechanism of the conveying apparatus of this invention. FIG. 7 is a configuration diagram of a detection mechanism for detecting a blocking operation according to a second embodiment used in the blocking mechanism of the conveying device of the present invention; FIG. 11 is a configuration diagram of a detection mechanism for detecting a blocking operation according to a third embodiment used in the blocking mechanism of the conveying device of the present invention; It is a figure explaining operation|movement of the detection mechanism which detects the interruption|blocking operation|movement based on 3rd Embodiment used for the interruption|blocking mechanism of the conveying apparatus of this invention. FIG. 10 is a configuration diagram of a detection mechanism for detecting a blocking operation according to a fourth embodiment used in the blocking mechanism of the conveying device of the present invention; It is a perspective view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 2nd Embodiment of this invention. It is a perspective view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 3rd Embodiment of this invention. It is a perspective view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 4th Embodiment of this invention. FIG. 20 is a perspective view illustrating a blocking mechanism of a conveying device according to a fifth embodiment of the present invention, and is a diagram illustrating a configuration before blocking of a conveying path; FIG. 20 is a perspective view illustrating a blocking mechanism of a conveying device according to a fifth embodiment of the present invention, and is a diagram illustrating a configuration after blocking of a conveying path; It is a perspective view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 6th Embodiment of this invention. It is a perspective view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 7th Embodiment of this invention. FIG. 21 is a perspective view illustrating a blocking mechanism of a conveying device according to an eighth embodiment of the present invention; It is a perspective view explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 9th Embodiment of this invention. FIG. 21 is a perspective view illustrating a blocking mechanism of a conveying device according to a tenth embodiment of the present invention; FIG. 21 is a perspective view illustrating a blocking mechanism of a conveying device according to an eleventh embodiment of the present invention; It is a figure explaining the principal part structure of the interruption|blocking mechanism of the conveying apparatus which concerns on the 12th Embodiment of this invention. It is a figure explaining the principal part structure of the interruption|blocking mechanism of the conveying apparatus which concerns on the 13th Embodiment of this invention. FIG. 21 is a side view for explaining the main configuration of a blocking mechanism of a conveying device according to a fourteenth embodiment of the present invention; It is a figure explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 15th Embodiment of this invention. FIG. 21 is a side view for explaining the main configuration of a blocking mechanism of a conveying device according to a sixteenth embodiment of the present invention; It is a figure explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 17th Embodiment of this invention. It is a figure explaining the interruption|blocking mechanism of the conveying apparatus which concerns on the 18th Embodiment of this invention. FIG. 20 is a diagram illustrating a blocking mechanism of a conveying device according to a nineteenth embodiment of the present invention; FIG. 21 is a diagram for explaining a blocking mechanism of a conveying device according to a twentieth embodiment of the present invention; FIG. 30B is a side view illustrating the blocking mechanism of the conveying device of the present invention illustrated in FIG. 30A; FIG. 30B is a plan view illustrating a blocking mechanism of the conveying device of the present invention illustrated in FIG. 30A; It is a figure explaining the relationship between a conveying apparatus and an interruption|blocking installation as a background art.

In order to facilitate understanding of the present invention, first, the background of the present invention will be described. For buildings, etc., if they are constructed beyond a predetermined floor area, in order to respond to disasters such as fires and earthquakes, for example, the Fire Defense Law refers to the Building Standards Law and fire prevention shutters, etc. Equipment is to be installed. Buildings include storage warehouses for goods, etc., and buildings such as manufacturing facilities and transportation facilities.

Specifically, regarding fire prevention divisions in buildings, for example, the installation of fire prevention equipment, etc. is obligatory for certain area divisions, such as ^floor area ≥ 1,500m2 (Article 112 of the Enforcement Order of the Building Standards Law). It is also cited in law.

For example, FIG. 31 is a diagram for explaining the relationship between a conveying device as a background art and a blocking facility (hereinafter also referred to as blocking wall or blocking facility) that blocks a predetermined section such as fire prevention equipment. In addition, in a building with a wide area larger than the prescribed size, in addition to building pillars 17 , etc., fire prevention equipment 15 including equipment for guiding blocking walls (fire shutters, etc.) is installed (blocking walls themselves is not shown). When the conveying device 1 is arranged across the fire prevention equipment 15, when a disaster such as a fire occurs and the blocking wall descends along the guide of the fire prevention equipment 15, the corresponding portion of the conveyance path under the blocking wall or the blocking wall itself will be damaged. In addition, when an obstacle detection function is provided on the lower surface of the shielding wall, a problem arises in that the transport device stops when it is detected, and the fire prevention function is not fulfilled.

The present invention focuses on detecting the descent of the blocking wall in advance, and is characterized by a blocking mechanism that detects the descent of the blocking wall and withdraws the relevant portion of the conveying path under it.

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

FIG. 1 is a perspective view illustrating a blocking mechanism of a conveying device according to an embodiment of the present invention, FIG. 2A is a plan view, and FIG. 2B is a side view. The same reference numerals indicate the same objects in each figure.

In FIG. 1, at a place where equipment 5 is arranged, for example, where a blocking wall descends to block the inside of a predetermined section, the transporting device 1 is composed of a transporting device 11 and a transporting device 12, and between the transporting devices A gap is provided in the A roller 13 forming a conveying path is arranged in the gap. The blocking equipment 5 is provided with a guide rail 51 for guiding the blocking wall when it is lowered. According to the present invention, the blocking wall descending along the guide rail 51 is detected in advance, and the rollers 13 serving as the transport path in the gap between the transport devices are retracted. A detection mechanism 4 is provided for detecting the blocking wall. The detection mechanism 4 is composed of a blocking wall detection portion 41 and an air selector switch 42 . Air pipes 43 and 44 for supplying and discharging air are attached to an air selector switch 42 of the detection mechanism 4 . The detection part 41 of the detection mechanism 4 only needs to be able to detect the blocking operation of the blocking wall, and for example, a detection pin (also called a bar switch) can be used. Hereinafter, the detection pin 41 will be described in this embodiment. The detection pin 41 is attached across the guide rail of the blocking wall. As the blocking wall descends, the detection pin 41 rotates downward to operate the air changeover switch 42 to retract the roller 13 .

The roller 13 is attached to one end of the rotating side plate 2, and the other end of the rotating side plate 2 is attached to the piston rod 31 of the air cylinder 3. The rotating side plate 2 rotates about the rotating shaft 21 as indicated by the arrow a. rotatable.

One end of the air cylinder 3 is attached to a fixed portion 34 so as to be swingable on the side plate of the conveying device, and rotates the rotary side plate 2 with respect to the rotary shaft 21 of the rotary side plate 2 in accordance with the movement of the piston rod 31 .

The air cylinder 3 is provided with air supply/discharge ports 321 and 322 for supply/discharge on both sides, which are connected to respective air pipes 32 and 33 . When the blocking wall descends, the roller 13 is retracted, and the blocking wall can be lowered to block the conveying path. That is, the air cylinder 3 constitutes a biasing mechanism (biasing means) that biases the conveying path (roller) 13 through the piston rod 31 so as to rotate.

As shown in the plan view of FIG. 2A, air cylinders 3a and 3b are provided on both sides of the conveying path formed by the roller conveyor 111 as biasing mechanisms for biasing the rollers 13 to rotate downward. Air pipes 32a, 33a, 32b, and 33b for air supply and discharge are connected to the air cylinders 3a and 3b, respectively, and are controlled by a common air supply route as will be described later.

As shown in the side view of FIG. 2B, air pipes 43 and 44 for supplying and discharging air connected to the air selector switch 42 of the shielding wall detection mechanism 4 described above serve as air supply sources for the air cylinders 3a and 3b. , and when the detection pin 41 of the detection mechanism 4 is driven, the air selector switch 42 operates to control the air in the air cylinders 3a and 3b. This air control is described in FIGS. 3A-5.

In the diagrams of FIGS. 2A and 2B, the gap A, including the rollers 13, represents the clearance that takes into account the working range of the barrier.

FIG. 3A is a diagram illustrating a pneumatic supply route according to an embodiment when an air cylinder is used for the shutoff mechanism of the conveying device of the present invention.

In FIG. 3A, the air cylinders 3a and 3b and the blocking wall detection mechanism 4 are connected to an air gas supply source (for example, an air tank) 39 by an air supply pipe. Air is supplied from an air gas supply source 39 to the air cylinders 3a and 3b through an air switch 38 and through pipes 32a, 33a, 32b, and 33b, and air is supplied from a pipe 43 to an air switch 42. In the illustrated example of FIG. 3, air is supplied to the left supply/discharge ports 321a and 321b of the air cylinders 3a and 3b by the air switch 38, and the piston rods 31a and 31b of the air cylinders 3a and 3b are moved to the right side, that is, as shown in FIG. As shown in FIGS. 2A and 2B, the rollers 13 arranged in the gap are pressed in a supporting direction.

Here, when the detection pin 41 of the shielding wall detection mechanism 4 detects the descent of the shielding wall and rotates downward, the air selector switch 42 is switched to connect the air pipes 43 and 44, and the air pipe 44 is closed. Air pressure is applied to the air switch 38 via the air switch 38, and the air switch 38 switches the air supply to the right side of the drawing. Accordingly, the supply and discharge of air to the air cylinders 3a and 3b are reversed to move the piston rods 31a and 31b toward the left. That is, the air cylinders in FIGS. 1 and 2B operate in the opposite direction to urge the roller 13 downward, rotate it and move it away from the gap.

On the other hand, when the detection pin 41 is returned to its original position, the air pressure applied to the air switch 38 is released and the route of the air gas is restored. .

In addition to such return, a release switch 45 may be provided to drive the air switch 38 .

Although the detection pin 41 has been exemplified as the detection portion 41 of the detection mechanism 4, the detection pin 41 is a thin rod-shaped pin such as a wire. will not be Another embodiment of the detection unit 41 will be described later.

FIG. 3B is a diagram for explaining a pneumatic supply route according to the second embodiment when an air cylinder is used for the blocking mechanism of the conveying device of the present invention.

FIG. 3B differs from FIG. 3A in that the air remaining inside the air wiring (piping) is used instead of the air gas supply source (for example, air tank) 39 . If the air wiring (piping) 392 connected to the air gas supply source 39 from the connection port 393 as an air gas supply is not connected to the air gas supply source 39, the air wiring (piping) 392 and/or the existing air wiring It is possible to continuously maintain the air for a predetermined time due to the remaining air in (piping), so that the cylinder 3 can be driven. Of course, it may be connected to the air gas supply source 39, or may be connected after a predetermined time has elapsed.

FIG. 4 is a diagram for explaining a pneumatic supply route according to a third embodiment in which an air cylinder is used for the blocking mechanism of the conveying device of the present invention.

4 is characterized in that an auxiliary air gas supply source (auxiliary tank) 391 is provided in addition to the air gas supply source (air tank) 39 for the cylinders 3a and 3b shown in FIG. 3A. In order to maintain the conveying path (roller) 13 in a predetermined state, it is necessary to continuously supply air to the air cylinders 3a and 3b to maintain the air pressure. In FIG. 4, air is supplied from an air gas supply source 39 and an auxiliary air gas supply source 391 in order to maintain the conveying path (roller) 13 by the piston rods 31a and 31b of the air cylinders 3a and 3b. Even if the air supply pressure of 39 drops, the conveying path 13 can be maintained as in normal use, and the air can be controlled during retraction. Further, even when the conveying path 13 is once retracted and then restored after being retracted, since the air gas supply source is duplicated, the restoration operation is ensured. It is also effective when repeating evacuation and recovery driving as a test operation.

Further, as shown in FIG. 4, a compressor 390 may be connected to each of the air gas supply source 39 and the auxiliary air gas supply source 391 to prevent the air pressure from dropping. A decrease in the air pressure of the air gas supply source 39 and the auxiliary air gas supply source 391 over time can be prevented. In the illustrated example, the compressor 390 is commonly provided for both the air gas supply source 39 and the auxiliary air gas supply source 391, but it may be provided separately for each, or may be provided for either one. . Also, even if the auxiliary tank shown in FIG. 3A is not used, the compressor 390 may be connected to the air gas supply source 39 .

FIG. 5 is a diagram for explaining a pneumatic supply route according to a fourth embodiment in which an air cylinder is used for the blocking mechanism of the conveying device of the present invention.

5 differs from those shown in FIGS. 3A, 3B, and 4 in that, in addition to the air changeover switch 382 operated by the detection mechanism 4, an air changeover switch 381 by an electromagnetic valve is provided in the air supply route. . Although the air route is changed directly from the detection mechanism 4 without going through the air changeover switch 42, it may be changed through the air changeover switch 42 as shown in FIG. 3A.

In FIG. 5 , air supplied from an air gas supply source (air tank) 39 through an air wiring (air pipe) a 1 enters an air selector switch 382 of the detection mechanism 4 . The air output from the air selector switch 382 is input to the air selector switch 381 via the air wiring (air piping) a2 or a3. This air changeover switch 381 has a route through which the air output a2 or a3 from the air changeover switch 382 is passed as it is and a route through which it is selectively output by an electromagnetic valve. A solenoid valve provided in the air selector switch 381 outputs air in one direction while power is supplied through the electric wiring 383 .

In the example shown in FIG. 5, as the air route of the air changeover switch 381, during the air output of the air changeover switch 382 operated by the detection result of the detection mechanism 4, in addition to the broken line a3 route, a normal power supply (normal power supply) is used. The air route indicated by the solid line is maintained while power is being supplied, and in the event of a power failure or the like in which there is no power supply from the electric wiring 383, the air route is changed to the broken line.

Therefore, in the example shown in FIG. 5, while the conveying apparatus is normally operated and the normal power supply is supplied, the air route is from the air gas supply source 39, for example, the air wiring (air piping) a1, the air switch 382 , air wiring (air piping) a2, air selector switch 381, and air wiring (air piping) a4, air (or air pressure) is supplied to the cylinders 3a and 3b to maintain the piston rods and the conveying path in an operational state. are doing.

In addition, when a disaster such as a fire occurs, when the detection mechanism 4 detects the blocking operation of the blocking wall, the air switch 382 is switched. , air wiring (air piping) a3, air selector switch 381, and air wiring (air piping) a5, air (or air pressure) is supplied to the cylinders 3a and 3b in the direction of retracting the piston rods to retract the conveying path. . In this case, regardless of whether utility power is maintained or not.

In addition, when a power failure occurs, the electromagnetic valve of the air switching switch 381 operates as the power from the power supply line 383 is stopped, and as an air route, from the air gas supply source 39, the air wiring (air pipe) a1, the air switching switch Air (or air pressure) is supplied to the cylinders 3a and 3b in the direction of retracting the piston rod via 382, air wiring (air piping) a2, air selector switch 381, and air wiring (air piping) a5 to retract the conveying path. Let In this case, it is irrelevant whether or not the blocking wall performs the blocking operation.
Further, when the power is restored, the solenoid valve of the air selector switch 381 is restored and the air circuit is returned to the normal state. That is, the transport path is restored.

The initialization (initial setting) of the air routes in the air selector switches 382 and 381 may be performed via the control line SS by the release switch 45 as described with reference to FIG. 3A.

In the example shown in FIG. 5, the air changeover switch 382 and the changeover switch 381 for changing the air route are directly provided from the detection mechanism 4. However, the present invention is not limited to this, and is shown in FIG. 3A. , FIG. 3B, and FIG. Moreover, the auxiliary air gas supply source (auxiliary air tank) 391, the compressor 390, and the like shown in FIGS. 3A, 3B, and 4 may be provided.

For the air wiring (air piping) used in the air circuit and air route described in the above embodiments, it is desirable to use incombustible materials and/or metal pipes from the standpoint of disaster prevention against disasters such as fires. As the metal tube, a copper tube may be used considering ease of wiring and ease of bending.

Further, in the above embodiment, the piston rod of the air cylinder 3 may be driven and controlled by activation based on notification information from an alarm device such as a fire alarm or smoke detector.

In the embodiments of the present invention explained above with reference to FIGS. should not be. Further, in the illustrated example, as a retraction structure for the rollers 13 provided in the gap, air cylinders are arranged on both sides of the conveying path. An air cylinder may be provided only on the side surface. In addition, the air supply/discharge port of the air cylinder is configured assuming both retraction and return operations. It is okay to be Further, although a roller conveyor has been described as an example of a conveying path, the present invention is not limited to this roller conveyor, and may be applied to a belt conveyor or other conveying means.

In addition, in the embodiment of the present invention, a type in which the blocking wall descends is shown, but in a type in which the blocking wall is housed under the floor or the like and the blocking wall rises upward from the floor surface or the like. Even if there is, it can be configured in the same way. In the case of a type in which the blocking wall rises, a detection mechanism for detecting the blocking operation of the blocking wall may be provided below the conveying path of the conveying device. Further, a slide door type or a bellows type (accordion type) in which the blocking wall is housed in a side wall surface or the like and slides from the lateral direction during the blocking operation may be used. In the case of a blocking wall that blocks from the lateral direction, the detection mechanism may be arranged in parallel with the conveying path. Furthermore, a type of door that opens and closes like a hinge door may be used. In the case of a door that opens and closes, it is possible to determine the blocking distance (interval) for blocking the conveying path in consideration of the width (range) of the opening and closing operation of the door.

The same applies to the following, and although each embodiment will be described in terms of a type that descends as the blocking operation of the blocking wall, the operating direction of these blocking walls is not limited.

FIG. 6 is a perspective view for explaining the blocking mechanism of the conveying device according to the second embodiment of the present invention.

6 differs from the one described in FIG. 1 in that an urging mechanism (retraction mechanism) for retracting the conveying path (roller) 13 includes an elastic member (e.g., a spring member) in addition to the air drive by the air cylinder 3. ) 30.

In FIG. 6, an end portion 301 and a fixed portion 34 are shown on the other end side where the piston rod 31 of the air cylinder 3 is attached for downward rotation with respect to the rotary shaft 21 of the rotary side plate 2 to which the conveying path (roller) 13 is attached. A spring member 30 is attached between and pulls the rotating side plate 2 in the direction of rotation. When the rollers 13 are in operation as a conveying path connecting the conveying devices, the piston rod 31 of the air cylinder 3 pushes and maintains the conveying path against the tensile force of the spring member 30 . When the detection mechanism 4 detects the blocking operation of the blocking wall, the switch 42 switches the air route, and the piston rod 31 of the air cylinder 3 moves to bias the conveying path 13 in the retracting direction. Along with this, the spring member 30 is pulled.

In the present invention according to FIG. 6, even when the force that urges the retraction drive of the conveying path by switching the air supply route to the air cylinder 3 is weak, for example, when the air pressure is low, the spring member 30 It can be completely retracted by the tensile force (shrinking force) of Further, even when retracting (falling) due to the weight of the transport path, by providing the spring member 30, it is possible to completely retract due to its tensile force (contracting force).

FIG. 7 is a perspective view illustrating a blocking mechanism of a conveying device according to a third embodiment of the invention.

7 differs from the one described in FIG. 1 in that, in addition to the air drive by the air cylinder 3, a tension member (for example, belt material, 302 and a weight 304 are provided side by side.

In FIG. 7, the rotation shaft 21 of the rotary side plate 2 to which the conveying path (roller) 13 is attached is rotated downward from the other end to which the piston rod 31 of the air cylinder 3 is attached. A wire member 302 is stretched between the side and a piece member 305 , and a weight 304 is attached via the piece member 305 . When the rollers 13 are in operation as a transport path connecting the transport devices, the piston rod 31 of the air cylinder 3 presses and maintains the transport path against the tensile force of the wire member 302 and the weight 304 . When the detection mechanism 4 detects the blocking operation of the blocking wall, the switch 42 switches the air route, and the piston rod 31 of the air cylinder 3 is moved to bias the conveying path 13 in the retracting direction. Along with this, the wire member 302 pulled by the weight 304 pulls the rotating side plate 2 .

In the present invention according to FIG. 7, as in the case shown in FIG. 6, when the force that urges the retracting drive of the conveying path by switching the air supply route to the air cylinder 3 is weak, for example, the air pressure decreases. Even when it is in place, it can be completely retracted due to the tensile force of the wire member 302 and the weight 304 provided side by side. Further, even if the wire member 302 and the weight 304 are provided side by side, the pulling force of the wire member 302 and the weight 304 can be used to completely retract (fall) the transport path due to its own weight.

Alternatively, the end portion 303 of the rotating side plate 2 may be directly connected to the weight 304 without the top member 305 interposed therebetween.

8A and 8B show the configuration of a detection mechanism for detecting a blocking operation according to an embodiment used in the blocking mechanism of the conveying apparatus of the present invention, and FIG. It also explains the operation corresponding to the return operation of the blocking wall.

A detection pin was exemplified above as an example of the detection unit 41 of the detection mechanism 4 that detects the blocking operation of the blocking wall described in FIG. 1 and the like. By using this detection pin, at least a portion of the blocking wall and/or a wall surface, for example, an end surface (also referred to as a lower surface, a lower side, or an operating side) hits, and rotates. The change-over switch 42 is driven by this rotating operation. On the other hand, when restoring including the conveying device, the blocking wall is returned to its original position. In this case, if the detection pin is used, a force is applied to the detection pin in the opposite direction when the blocking wall is restored to its original position. At this time, the detection pin may be damaged. 8A and 8B are invented to prevent such damage to the detection pin.

In FIG. 8A, the detection mechanism includes a changeover switch (for example, an air changeover switch when an air circuit is used as described above) 42, a detection pin 411, and a flexible member (for example, made of synthetic resin or the like) covering the detection pin. tube material) 412.

With such a configuration, as shown in FIG. 8B, when the blocking wall 52 descends as the blocking operation of the blocking wall 52 and the detection pin 411 rotates, the flexible member 412 covering the detection pin 411 follows the movement of the detection pin 411 and may be caught. Since it can be freely deformed without any deformation, it can flexibly correspond to the wall surface of the blocking wall. Also, damage to the detection pin can be prevented.
On the other hand, when the shielding wall is restored, the flexible member covering the detection pin follows the shielding wall surface to change its shape, thereby preventing damage to the detection pin.
When the detection pin returns to its original position, the change-over switch is reset and the conveying path is restored to its original state.

FIG. 9 is a configuration diagram of a detection mechanism for detecting a blocking operation according to a second embodiment used in the blocking mechanism of the conveying apparatus of the present invention.

9 is different from FIG. 8A in that the detection section 41 of the detection mechanism is composed only of a flexible member (for example, a tube material made of synthetic resin or the like) 413 .

The flexible member 413 may be a tubular tube attached like a ring, or a rubber-like balloon attached.

With such a configuration, the flexible member 413 rotates following the blocking operation of the blocking wall to drive the switch 42 . In the illustrated example, the flexible member 413 also serves as a detection pin and is deformable, so that it can flexibly correspond to the wall surface of the blocking wall. Restoration at the time of recovery is also facilitated. That is, when the blocking wall recovers, the flexible member follows the blocking wall surface and changes its shape. When the flexible member returns, the changeover switch returns and the conveying path returns to its original state.

10A and 10B are diagrams showing the configuration of a detection mechanism for detecting a blocking operation according to a third embodiment used in the blocking mechanism of the conveying apparatus of the present invention, and FIG. It is a figure explaining corresponding operation|movement.

In FIG. 10A, the detection mechanism is composed of a changeover switch (for example, an air changeover switch when an air circuit is used as described above) 42 and a spring member 416 and an inclined member 415 as a detection portion. .

In the state shown in FIG. 10A, the spring member 416 and the member 415 of the detection unit are in a state in which the spring member 416 presses the member 415 having an inclination toward the blocking equipment side, and the blocking wall 52 is shown by the arrow line. , the member 415 is pushed. That is, this detecting portion works as a slider by means of the spring member 416 and member 415 .

In FIG. 10B, as the blocking wall 52 descends, the member 415 moves against the spring member 416 as indicated by the left arrow to operate the switch 42 .
Further, when the blocking wall is restored, the member 415 returns to its original position and the switch is reset.

FIG. 11 is a configuration diagram of a detection mechanism for detecting a blocking operation according to a fourth embodiment used in the blocking mechanism of the conveying apparatus of the present invention.

Although FIGS. 8A to 10B described above show an example of a detection unit of the detection mechanism that directly detects at least a part of the blocking wall, FIG. It is the one that was made.

In FIG. 11, the detection mechanism comprises a changeover switch (for example, an air changeover switch when using an air circuit as described above) 42 and a detection pin 411 . On the other hand, the blocking wall 52 is provided with a protrusion 53 on its wall surface.

As shown in FIG. 11, when the blocking wall 52 performs the blocking operation in the direction indicated by the arrow, the protrusion 53 on the wall surface of the blocking wall hits the tip of the detection pin 411 of the detection mechanism. A detection pin 411 of the detection mechanism is pushed by the protrusion 53 and rotated in the direction indicated by the arrow to drive the switch 42 .
In addition, the change-over switch is restored in the same manner as before by returning the detection pin of the detection mechanism to its original position.

As described with reference to FIGS. 8A to 11, various configurations have been shown as the detection unit of the detection mechanism that detects movement of at least a part of the blocking wall or the wall surface. Even if it has a function to detect an obstacle, it may detect and move with a smaller pressing force than the pressing force to be detected as an obstacle. That is, even if there is a pressure switch or the like for detecting an obstacle on at least a part of the blocking wall or on the wall surface, the detection mechanism can be operated with a pressing force that does not activate the switch. As for the detection mechanism, a mechanism for switching the air route using an air circuit has been described as an example, and detection is performed by physically contacting the blocking wall. It may be something to do. For example, it may be based on an optical detection mechanism, a sound wave detector, or a wireless method. In the case of these non-contact detection mechanisms, transmission detection may be performed across the gap of the shielding range of the shielding wall, or reflection may be detected.

FIG. 12 is a perspective view for explaining the blocking mechanism of the conveying device according to the second embodiment of the present invention.

12, the difference from the configuration of FIG. 1 is that the roller 13 arranged in the gap between the conveying device 11 and the conveying device 12 is slid toward the conveying device 11 side. The tip of the piston rod 31 of the air cylinder 3 is fixed to a roller holding member 25 that holds the roller 13 . A sliding member 23 is arranged under the roller holding member 25, and slides on the rail 24 arranged on the lower side of the conveying device 11 in the lateral direction of the arrow a. 13 is evacuated. Further, in this case, in order to provide a retreat path for the rollers 13, a retreat space can be formed by narrowing a part of the roller gap of the roller conveyor 11. FIG.

A mechanism for detecting the descent of the blocking wall is the same as in FIG. 1 and is not shown. When this detection mechanism detects the descent of the blocking wall, air is supplied from the air pipe 33 instead of air from the air pipe 32 of the air cylinder 3, so that the roller 13 slides to the left side in the drawing and is retracted from the gap. In this way, it is possible to prevent damage or the like caused by the descent of the blocking wall.

In the illustrated example, only one side of the conveying path is shown as a retracting structure for the rollers 13 provided in the gap, but they are provided on both sides and driven synchronously. Considering dynamic operation and mechanical strength, a retraction structure having a driving device on only one side may be used.

FIG. 13 is a perspective view illustrating a blocking mechanism of a conveying device according to a third embodiment of the invention.

13 is different from the configuration of FIG. 12 in that a belt conveyor is used for the transport path of the transport device 1. In FIG. The conveying path is composed of a belt conveyor 112 on the conveying device 1 side, a belt conveyor 113 having a retraction structure from the gap, and a belt conveyor 121 on the conveying device 12 side through the gap.

The belt conveyor 113 arranged in the gap comprises two or three rotating bodies for guiding the conveying belt arranged side by side in the horizontal direction of the drawing.

The retracting structure of the belt conveyor 113 is designed to slide toward the conveying device 1 side, similar to the one shown in FIG. The tip of the piston rod 31 of the air cylinder 3 is attached to a roller holding member 25 that holds the belt conveyor 113 . A sliding member 23 is arranged under the roller holding member 25, and slides on the rail 24 arranged on the lower side of the conveying device 1 in the horizontal direction of the arrow a. 13 is evacuated. In this case, the evacuation path of the evacuation conveyor 113 may be provided with a mechanism for adjusting the length of the belt, as in the case of the roller conveyor.

A mechanism for detecting the descent of the blocking wall is the same as in FIG. 1 and is not shown. When the detection mechanism detects the descent of the blocking wall, the air is supplied from the air pipe 33 instead of the air pipe 32 of the air cylinder 3, thereby causing the roller 13 to slide to the left side in the figure and retreat from the gap. In this way, it is possible to prevent damage or the like caused by the descent of the blocking wall.

Also, a slider bed may be retracted instead of the central roller of the belt conveyor.

In the illustrated example, only one side of the conveying path is shown as the retraction structure of the belt conveyor 113 provided in the gap, but it is provided on both sides and driven synchronously. Considering dynamic operation and mechanical strength, a retraction structure having a driving device on only one side may be used.

FIG. 14 is a perspective view illustrating a blocking mechanism of a conveying device according to a fourth embodiment of the invention.

In FIG. 14, a belt conveyor is used for the conveying path as in the configuration illustrated in FIG. A belt conveyor 114 having a retraction structure is arranged in a gap between the conveyor 112 and the conveyor 121 as a conveying path having a retraction mechanism.

The belt conveyor 114 arranged in this gap is composed of, for example, three rotating bodies (rollers) for guiding the conveying belt arranged side by side in the horizontal direction of the figure, and they are connected to each other by a spring member 254 so as to be stretchable. .

The belt conveyor 114 is held by belt conveyor holding members 25 on both sides. As a retraction structure of the belt conveyor 114, a rotating body (roller) is arranged below a rotating body (roller) that guides the conveying belt, and the lower rotating body (roller) is moved downward as indicated by the arrow a. As a result, the space between the upper rotating bodies is shortened and retracted. A mounting plate 253 having a rotating shaft 251 is provided at the bottom of the belt conveyor holding member 25, the shaft of the lower rotating body is mounted on one end 252 of the mounting plate 253, and the piston rod 31 of the air cylinder 3 is mounted on the other end of the mounting plate 253. be. This piston rod 31 pulls or pushes. When the blocking wall is lowered, the piston rod 31 is retracted to rotate the mounting plate 253, thereby reducing the space between the upper rotors in the direction of the arrow b and retracting the belt conveyor 114. As shown in FIG.

In addition, among the three rotating bodies (rollers), a mechanism for moving the central rotating body (roller) downward is provided, and the upper rotating body (roller) is moved in the same manner as the lower rotating body (roller). You can narrow the interval between

Also, it may be used in combination with a sliding slide mechanism as in the previous example.

Further, as a retraction path for the belt conveyor 114, a retraction space can be formed by controlling a portion of the conveyor 112 so as to close the gap between rollers in use.

A detection mechanism for detecting the blocking operation of the blocking wall is the same as that shown in FIGS. When the blocking wall (not shown) descends, the detection mechanism detects the blocking operation, and the air cylinder 3 is driven to rotate the mounting plate 253 to retract the belt conveyor 114 from the gap. In this way, it is possible to prevent damage to the blocking wall and the retraction conveyor due to the blocking operation of the blocking wall.

In the illustrated example, only one side of the conveying path is shown as the retraction structure of the belt conveyor 114 provided in the gap, but it is provided on both sides and driven synchronously. Considering dynamic operation and mechanical strength, a retraction structure having a driving device on only one side may be used.

FIG. 15A is a perspective view for explaining a blocking mechanism of a conveying device according to a fourth embodiment of the present invention, and is a diagram for explaining the configuration before blocking the conveying path, and FIG. 15B is a diagram after blocking the conveying path. It is a figure explaining a structure of.

The conveying path shown in FIG. 15A is composed of belt conveyors 112, 113 and 121, like the conveying path shown in FIG.

In FIG. 15, it is rotatably mounted as a retraction structure for the belt conveyor 113 arranged in the gap.

In FIG. 15A , a conveying path is formed by belt conveyors 112 and 113 of conveying device 1 and belt conveyer 121 of conveying device 12 . The belt conveyor 113 arranged in the gap is rotatable with the shaft of the rotating body (roller) 37 attached to the holding member 25 to rotate the belt.

The tip of the piston rod 31 of the air cylinder 3 is attached to the shaft of the rotating body 36 of the belt conveyor 113 .

A mechanism for detecting the descent of the blocking wall is the same as in FIG. 1 and is not shown. When the detection mechanism detects the descent of the blocking wall, the piston rod 31 is retracted into the cylinder by supplying air from the air pipe 33 in place of the air supply from the air pipe 32 of the air cylinder 3 . The belt conveyor 113 subjected to this action rotates about the shaft of the rotating body (roller) 37 as shown in FIG. In this way, it is possible to prevent damage or the like caused by the descent of the blocking wall. In this case, even if the rotating direction of the conveyor 113 is the opposite direction (upward) to the drawing, the same function is achieved, and the conveyor 113 also has the function of retaining the conveyed products flowing on the conveyor 1 side.

In the illustrated example, only one side of the conveying path is shown as the retraction structure of the belt conveyor 113 provided in the gap, but it is provided on both sides and driven synchronously. As in the previous embodiment, if dynamic operation and mechanical strength are taken into consideration, the retraction structure may be provided with a driving device on only one side.

12 to 15, an elastic member (such as a spring member) 30 as described with reference to FIG. 6 may also be provided. The (wire member or the like) 33 and the weight 304 may be provided side by side.

FIG. 16 is a perspective view illustrating a blocking mechanism of a conveying device according to a sixth embodiment of the invention.

16 differs from FIG. 1 in that an emergency power source is used as an urging mechanism (retraction mechanism) for retracting the conveying path and is operated by that power.

In FIG. 16, a roller 13 forming a conveying path is arranged in a gap between a conveying device (conveyor) 11 and a conveying device (conveyor) 12 at a place where the blocking device 5 is arranged. As in the previous embodiment, the blocking wall descending along the blocking wall guide rail 51 is detected in advance and the conveying path (roller) 13 is retracted. In FIG. 16, roller 13 is attached to shaft 22 at one end of rotary side plate 2 . The other end side of the rotary side plate 2 is attached to a shaft 21 rotatable on the side surface of the conveying device 11 . The rotating side plate 2 is rotatable by a rotating shaft 21 . A driving device 340 driven by a power source is also provided. A drive rod (bar) 310 is provided for pushing or pulling by the drive device 340 , and one end 35 of the drive rod (bar) 310 is attached to the lower side of the rotating side plate 2 .

This driving device 340 is normally driven by a normal power source and is provided with an emergency power source (which may be an emergency power source or the like) 300 . This emergency power supply 300 may be charged in parallel while the normal power supply is being supplied.

Even if a power failure occurs due to a disaster such as a fire, the emergency power supply 300 can supply necessary power to the driving device 340, the detection mechanism 40, and the like.

Therefore, even when a power failure occurs in an emergency, the transport path can be driven to retract.

Further, the drive device 340 may be controlled by activation based on notification information from an alarm device such as a fire alarm or smoke detector. The same applies to the embodiments described below.

The driving device 340 maintains the roller 13 as a conveying path in a state where the driving rod (bar) 310 is pushed out by a normal power source.
On the other hand, a detection mechanism 40 is provided for detecting a blocking operation when a blocking wall (not shown) of the blocking device 5 descends along the blocking wall guide rail 51 . The detection mechanism 40 is composed of a detection unit 410 for an interruption operation and a changeover switch 420 for notifying the drive device 340 of the detection result. A switching signal based on this detection result is transmitted to the driving device 340 via the signal line 430 .
In response to this switching signal, the driving device 340 is controlled to pull in the driving rod (bar) 310 by driving the motor or the like, so that the rotating side plate 2 rotates about the rotating shaft 21 as indicated by the arrow a, thereby serving as a conveying path. The roller 13 is retracted.

In addition, when at least one of the detection of the interruption operation by the detection mechanism 40 and the switching to the emergency power supply 300 during a power outage occurs, it is also possible to operate so as to bias the conveying path in the retraction direction. can.

As described above, various configurations can be used as the detection unit of the detection mechanism that detects movement of at least a portion of the blocking wall or the wall surface. Further, even if the blocking wall has a function of detecting an obstacle as the blocking wall moves, it is sufficient that the blocking wall detects and moves with a pressing force smaller than the pressing force to be detected as an obstacle. That is, even if there is a pressure switch or the like for detecting an obstacle at the lower end of the blocking wall, the detection mechanism can be operated with a pressing force that does not activate the switch.

Also, as the detection mechanism, a circuit that operates with an emergency power supply may be used even when the normal power supply cannot be used. Alternatively, detection may be performed without contacting the blocking wall. For example, it may be based on an optical detection mechanism, a sound wave detector, or a wireless method. In the case of these non-contact detection mechanisms, transmission detection may be performed across the blocking range of the blocking wall, or reflection may be detected. Alternatively, the transmission signal may be blocked by placing the transmitting/receiving device across the gap which is the operating range of the blocking wall, and the detection may be determined when the blocking operation of the blocking wall blocks the transmission signal.

In the illustrated example, only one side of the conveying path is shown as the retraction structure for the rollers 13 provided in the gap, but they are provided on both sides and driven synchronously. Considering dynamic operation and mechanical strength, a retraction structure having a driving device on only one side may be used. In addition, although a roller conveyor has been described as an example of a conveying path, it is not limited to this roller conveyor, and may be applied to a belt conveyor or other conveying means, and may be applied to other embodiments. It is the same.

FIG. 17 is a perspective view illustrating a blocking mechanism of a conveying device according to a seventh embodiment of the invention.

17 differs from the configuration shown in FIG. 16 in that the retracting structure for the rollers 13 arranged in the gap between the conveying device 11 and the conveying device 12 is slid toward the conveying device 11 side. Both sides of the roller 13 are held by roller holding members 25 . A sliding member 23 is attached to the lower portion of the roller holding member 25 and coupled with a rail 24 provided on the conveying device side. A drive bar 310 is attached to the side surface of the roller holding member 24 , and the drive bar 310 is connected to a drive device 340 . The driving bar 310 is pulled or pushed out by driving a motor or the like provided in the driving device 340 . The roller holding member 25 is slid on the lower rail 24 in the horizontal direction as indicated by the arrow a, and the roller 13 is retracted when the blocking wall is lowered.

Further, as a retraction path for the rollers 13, a retraction space can be formed by controlling a part of the roller gap of the conveying device 11 to be closed.

The mechanism for detecting the blocking operation of the blocking wall, for example, the descent, is the same as that shown in FIG. 16 and is not shown in FIG. A drive instruction is issued to the drive device 340 described above via a signal line. The drive device 340 thereby draws the drive bar 310 by driving a motor or the like, drives the roller holding member 25 to slide, and retracts the roller 13 from the gap. In this way, it is possible to prevent the blocking operation of the blocking wall, for example, damage caused by descent.

16, the drive device 340 is supplied with power from the emergency power source even if the normal power source is cut off, so that it functions effectively even in the event of a power failure in the event of a disaster such as a fire.

Also, in the illustrated example, only one side of the conveying path is shown as the retraction structure for the rollers 13 provided in the gap, but they are provided on both sides and driven synchronously. Considering dynamic operation and mechanical strength, a retraction structure having a driving device on only one side may be used.

FIG. 18 is a perspective view illustrating a blocking mechanism of a conveying device according to an eighth embodiment of the invention.

18 differs from the configuration of FIG. 17 in that a belt conveyor is used for the conveying path. A belt conveyor 113 having a retraction structure is arranged in a gap between the transport device 11 and the transport device 12 as a transport path having a retraction mechanism.

The belt conveyor 113 arranged in this gap comprises two or three rotating bodies for guiding the conveying belt arranged side by side in the horizontal direction of the drawing.

The retracting structure of the belt conveyor 113 is designed to slide toward the conveying device 11, as in the case shown in FIG. The belt conveyor 113 is held by belt conveyor holding members 25 on both sides. A sliding member 23 is attached to the lower portion of the belt conveyor holding member 25 and coupled to a rail 24 provided on the lower attachment side (not shown) of the conveying device 11 . A drive bar 310 is attached to the side of the belt conveyor holding member 25 and connected to a drive device 340 . The driving bar 310 is pulled or pushed out by driving a motor or the like provided in the driving device 340 . The belt conveyor holding member 25 is slid on the lower rail 24 in the lateral direction as indicated by the arrow a to retract the belt conveyor 113 when the blocking wall is lowered.

Also, a slider bed may be retracted instead of the central roller of the belt conveyor.

Also, as a retraction path for the belt conveyor 113, a retraction space can be formed by controlling the gaps between some of the rollers used in the conveyor of the conveying device 11 to be closed.

The mechanism for detecting the blocking operation of the blocking wall, for example, its descent, is the same as that shown in FIG. 16 and not shown in FIG. The detection mechanism detects this in the same manner as described above, and the driving device 340 pulls the driving bar 310 by driving a motor or the like, drives the belt conveyor holding member 25 to slide, and retracts the belt conveyor 113 from the gap. In this way, it is possible to prevent damage or the like caused by the blocking operation of the blocking wall.

16, the drive device 340 is supplied with power from the emergency power source even if the normal power source is cut off, so that it functions effectively even in the event of a power failure in the event of a disaster such as a fire.

In the illustrated example, only one side of the conveying path is shown as the retraction structure of the belt conveyor 113 provided in the gap, but it is provided on both sides and driven synchronously. Considering dynamic operation and mechanical strength, a retraction structure having a driving device on only one side may be used.

FIG. 19 is a perspective view illustrating a blocking mechanism of a conveying device according to a ninth embodiment of the invention.

In FIG. 19, a belt conveyor is used for the conveying path as in the configuration shown in FIG. 18 above. A belt conveyor 114 having a retraction structure is arranged in a gap between the transport device 11 and the transport device 12 as a transport path having a retraction mechanism.

The belt conveyor 114 arranged in this gap is composed of, for example, three rotating bodies (rollers) for guiding the conveying belt arranged side by side in the horizontal direction of the figure, and they are connected to each other by a spring member 254 so as to be stretchable. .

The belt conveyor 114 is held by belt conveyor holding members 25 on both sides. As a retraction structure of the belt conveyor 114, a rotating body (roller) is arranged below a rotating body (roller) that guides the conveying belt, and the lower rotating body (roller) is moved downward as indicated by the arrow a. As a result, the space between the upper rotating bodies is shortened and retracted. A mounting plate 253 having a rotating shaft 251 is provided at the bottom of the belt conveyor holding member 25 , one end 252 of which is mounted with the shaft of the lower rotating body, and the other end of the mounting plate 253 is mounted with a drive bar 310 . This drive bar 310 is connected to a drive device 340 . The driving bar 310 is pulled or pushed out by driving a motor or the like provided in the driving device 340 . When the blocking wall is lowered, the driving bar 310 is retracted to rotate the mounting plate 253, thereby reducing the space between the upper rotating bodies and retracting the belt conveyor 114. - 特許庁

In addition, among the three rotating bodies (rollers), a mechanism for moving the central rotating body (roller) downward is provided, and the upper rotating body (roller) is moved in the same manner as the lower rotating body (roller). may be narrowed, or may be used together with a sliding slide mechanism as in the previous example.

Further, as a retraction path for the belt conveyor 114, a retraction space can be formed by controlling the gap between the rollers used in the conveyor of the conveying device 11 to be closed.

The mechanism for detecting the blocking operation of the blocking wall, for example, the descent, is the same as that shown in FIG. 16 and not shown in FIG. The detection mechanism detects this, and the drive device 340 draws in the drive bar 310 by driving a motor or the like, rotates the mounting plate 253, and retracts and retracts the belt conveyor 114 from the gap. In this way, it is possible to prevent damage or the like caused by the blocking operation of the blocking wall.

16, the drive device 340 is supplied with power from the emergency power source even if the normal power source is cut off, so that it functions effectively even in the event of a power failure in the event of a disaster such as a fire.

In the illustrated example, only one side of the conveying path is shown as the retraction structure of the belt conveyor 114 provided in the gap, but it is provided on both sides and driven synchronously. Considering dynamic operation and mechanical strength, a retraction structure having a driving device on only one side may be used.

FIG. 20 is a perspective view for explaining the blocking mechanism of the conveying device according to the tenth embodiment of the present invention.

The conveying path shown in FIG. 20, like the conveying path shown in FIG. 18, shows an example using a belt conveyor structure.

In FIG. 20, the difference from the configuration of FIG. 18 is that a belt conveyor 113 is arranged as a conveying path having a retraction mechanism in a gap between the conveying device 11 and the conveying device 12 so as to be rotatably retractable. be.

The belt conveyor 113, which is arranged at a gap corresponding to the interrupting equipment, has a plurality of rotating bodies for guiding the conveyor belt arranged side by side in the horizontal direction of the figure.

The retraction structure of the belt conveyor 113 is such that it is driven to rotate toward the conveying device 11 side. The belt conveyor 113 includes a belt conveyor holding member 25 that holds the axis 37 of the roller member that drives and controls the conveyor from both sides, and one end of a drive bar 310 that is connected to a drive device 340 that provides rotational drive. It is configured to be connected to the rotation axis 36 of one roller member.

As a conveying path arranged in a gap corresponding to the blocking equipment 5, it is normally supported by the holding member 25 and one end of the driving bar 310 as shown in the illustrated example.

When the belt conveyor 113 is retracted from the gap, the drive bar 310 is retracted by the drive device 340 so that the shaft center 37 of the roller member held by the holding member 25 is connected to the tip side of the drive bar 310 as the rotation axis. The roller member is rotated in the direction indicated by the downward arrow a.

Therefore, when the blocking wall (not shown) descends as a blocking operation, the mechanism for detecting the descent of the blocking wall is the same as that shown in FIG. 16 and not shown in FIG. The driving device 340 receives the detection result of . As a result, the drive device 340 draws the drive bar 310 by driving the motor or the like, and causes the belt conveyor 113 to rotate, thereby retracting the belt conveyor 113 from the gap. In this way, it is possible to prevent damage or the like caused by the descent of the blocking wall.

16, the drive device 340 is supplied with power from the emergency power source even if the normal power source is cut off, so that it functions effectively even in the event of a power failure in the event of a disaster such as a fire.

In the illustrated example, only one side of the conveying path is shown as the retraction structure of the belt conveyor 113 provided in the gap, but it is provided on both sides and driven synchronously. Considering dynamic operation and mechanical strength, a retraction structure having a driving device on only one side may be used.

FIG. 21 is a perspective view for explaining the blocking mechanism of the conveying device according to the eleventh embodiment of the present invention. FIG. 21 shows a case where a conveying path having a retraction mechanism is formed between conveying paths having steps of different heights.

FIG. 21 shows a case where the transport path of the transport device 11 and the transport path of the transport device 12 have a step with respect to the floor surface, and the transport path (inclined plate) between the transport device 11 and the transport device 12 is inclined. ) 115. During this time, even when the transport path 115 having a retraction function is formed corresponding to the blocking equipment 5, drive control of the transport device 11, the transport device 12 and the transport path 115 corresponding to an emergency is performed.
In FIG. 21, an inclined conveying path (inclined plate) 115 has a rotating shaft 1140 on the upper portion of the inclined plate 115 and is attached to a post 114 provided on the conveying device 11 side.

The inclined plate 115 is rotated downward, for example, as indicated by the arrow a, and retracted so as not to interfere with the blocking operation of the blocking wall of the blocking device 5, for example, the descent. It should be noted that the detection mechanism, driving device, etc. for the breaking operation may be the same as those shown in FIG.

Here, as the direction in which the inclined plate 115 is rotated and retracted, it may be rotated and retracted upward of the conveying device 11 as indicated by the arrow b instead of the arrow a. Further, as the rotating shaft of the inclined plate 115, instead of the upper portion, the lower end surface side of the lower portion may be fixed so as to serve as the rotating shaft. In this case, the tilt plate 115 rotates in the direction indicated by the arrow c.

The inclined plate 115 may be composed of a single plate. It may be configured by a plate member 115b made of a material having elasticity. When the inclined plate 115 rotates in the direction of the arrow a, the tip of the plate member 115b comes into contact with the conveying path (belt conveyor) 12 and moves downward against the conveying path 12 because the plate member 115b has greater elasticity. It also has the effect of preventing failures such as breakage. The elastic plate member 115b may be made of flame-retardant or non-combustible material such as plastic, hard vinyl, plate-shaped rubber material, etc., which can withstand wear and breakage. Note that the plate material is not limited to these, and the plate material may be a plate-shaped object, and the material thereof is not limited to wood or steel. Also, the elastic plate material may be elastic, easily deformable, and restoreable, and may be soft or flexible. In addition, by using this elastic plate member 115b, it is possible to prevent the articles from falling off or being pinched when moving them to the conveying path (belt conveyor) 12 in the subsequent stage. , scrap materials, unnecessary materials, recycled materials, etc.).

In addition, although not shown, the driving device, like the one shown in FIG. 16, is powered by the emergency power supply even if the normal power supply is cut off, so it is effective even if a power failure occurs in the event of a disaster such as a fire. function.

Further, the driving devices are provided on both sides of the conveying path and driven synchronously. Considering dynamic operation and mechanical strength, a retraction structure having a drive control section provided only on one side surface may be used.

22A and 22B are diagrams for explaining the main configuration of a blocking mechanism of a conveying device according to a twelfth embodiment of the present invention. FIG.

In FIG. 22, a spring 7 is provided to urge the rollers 13 in the gap in the direction of the gap. The other end is attached to the shaft 71 of the roller 13 .

On the other hand, the detection mechanism 4 for detecting the descent of the blocking wall has a detection pin 41 as a detecting portion for detecting the descent of the blocking wall, and a wire 76 is connected to the detection mechanism 4 instead of the air selector switch. This wire 76 is connected to the stop pin 74 via the top 75 .

When the barrier wall descends and the detection pin 41 detects the downward movement of the barrier wall, the detection mechanism 4 rotates and pulls the wire 76 . The tension generated in the wire 76 causes the stop pin 74 to come off, and the one end 72 of the spring 7 is pulled leftward in the drawing by the springs 731 and 732, and the roller 13 retreats leftwardly from the gap. In this way, it is possible to prevent damage or the like caused by the descent of the blocking wall.

23A and 23B are diagrams for explaining the main configuration of a blocking mechanism of a conveying device according to a thirteenth embodiment of the present invention. FIG.

In FIG. 23, a spring 8 is provided to urge the roller 13 in the gap in the gap direction. It is fixed and maintained by a stop pin 84 and the other end is attached to the shaft 81 of the roller 13 .

On the other hand, the detection mechanism for detecting the descent of the blocking wall is the same as that shown in FIG.

The blocking wall drops, and when it detects this, the detection mechanism rotates and pulls the wire. The tension generated in the wire causes the stop pin 84 to come off, or the roller 13, which rotates in the direction of the spring 8 and descends along the guide plate due to the weight of the weight 821 and is connected to the shaft 81 at the other end of the spring 8, is shown. Pulled leftward, the roller 13 is withdrawn from the gap. In this way, it is possible to prevent damage or the like caused by the descent of the blocking wall.

FIG. 24 is a side view for explaining the essential configuration of a blocking mechanism of a conveying device according to the fourteenth embodiment of the present invention.

In FIG. 24, a conveying device 11 and a conveying device 12 are arranged with a predetermined gap on the boundary of the blocking device 5, and a roller 13 is arranged in the gap between the conveying devices so as to be rotatably retractable. The conveying path is formed by roller conveyors 111 and rollers 13 arranged in the conveying device 11 and roller conveyors arranged in the conveying device 12 .

The retraction structure of the roller accompanying the detection of the descent of the shielding wall shown in FIG. 24 is different from that of FIG.

As a mechanism for detecting the descent of the blocking wall 52 , a wheel 92 is used as a rotating body that contacts the side surface of the blocking wall 52 , and the wheel 92 and idle wheel 93 are fixed to both ends of the arm 91 . The free wheel 93 side of the arm 91 is rotatably attached to the conveying device 11 side and is pressed toward the wheel 92 side by a pressing spring 96 . A stopper 98 is provided to prevent the entire arm 91 from moving downward due to the force acting downward as the wheel 92 slides on the wall surface of the blocking wall 52 .

It can be said that the wheel 92, the arm 91, the idle wheel 93, the pressing spring 96, and the like constitute a mechanism for detecting the descent of the blocking wall 52.

On the other hand, the roller 13 is attached to a rotatable fixed member 99, and a weight 97 having a predetermined weight is attached to the other end.

A wire 95 is attached around the idle wheel 93 between the end 962 of the fixed member 99 to which the weight 97 is attached and the rotating shaft of the wheel 92 .

When the wheel 92 slides and rotates on the wall of the blocking wall 52 as the blocking wall 52 descends, the wire 95 is wound around the wheel shaft and pulls up the weight 97 via the idle wheel 93 . As a result, the fixing member 99 rotates, and the roller 13 descends and retreats.

Here, the winding force of the weight 97 and the wheel 92 is balanced with the pressing force of the wheel 92 against the blocking wall 52 by the pressing spring 96 . According to the present invention, since the wall surface of the blocking wall is used, even if there is an automatic stop function by detecting an obstacle on the lower surface of the blocking wall as the blocking wall descends, it will not be affected.

That is, the fixing member 99 is rotated in accordance with the upward movement of the weight 97, and the roller 13 is moved and retreated from the gap to a predetermined position. In this way, it is possible to prevent damage or the like caused by the descent of the blocking wall.

It should be noted that although the retraction and return can be performed automatically by vertical movement of the weight 97, the weight can be eliminated by using a timing belt in place of the wire, and the reciprocating motion of the timing belt by the rotation of the wheel 92 can also be performed. return is possible.
Although not shown, the side surface on the opposite side is similarly provided with a structure for detecting the descent of the blocking wall 52 and withdrawing the roller, and is driven from both ends of the roller 13 . Also, if control can be physically performed only on one side due to the relationship between the members of the conveying path and the strength, it is not necessary to provide the same configuration on both ends.

25A and 25B are diagrams for explaining a blocking mechanism of a conveying device according to a fifteenth embodiment of the present invention. FIG.

In FIG. 25, the same reference numerals as those used in FIG. 24 denote the same objects. A spring 963 for pulling the support arm (support member) 91 is provided in the central portion of the support arm 91 instead of the spring 96 .

During normal use when the blocking wall 52 does not operate, the arm 91 is urged downward by a pulling spring 963 and the wheel 92 is at a predetermined position on the blocking device 5 side. When the blocking wall 52 is operated to block, the wheel 92 comes into contact with the wall surface of the blocking wall 52 along with this descent, and the rotation of the wheel 92 causes detection of the descent of the blocking wall 52 . A tensioning spring (spring) 963 maintains the wheel 92 as the descent detecting means, and also maintains the shunting movement of the conveying path due to the rotational movement of the wheel 92 accompanying the descent of the blocking wall.

An example of using a spring for maintaining and retracting the conveying path has been described above, but the present invention is not limited to this, and a spring material corresponding to the movement of the conveying path during normal maintenance and retracting operations may be used. can be done.

If the wheel 92 has weight and is lowered by its own weight to maintain balance, the spring member such as the spring 963 may be omitted.
Also, although not shown, the opposite side surface is similarly provided with a structure for detecting the descent of the blocking wall 52 and withdrawing the roller, and is driven from both ends of the roller 13 . Also, if control can be physically performed only on one side due to the relationship between the members of the conveying path and the strength, it is not necessary to provide the same configuration on both ends.

FIG. 26 is a side view for explaining the main configuration of a blocking mechanism of a conveying device according to the sixteenth embodiment of the present invention.

In FIG. 26, a conveying device 11 and a conveying device 12 are arranged with a predetermined gap on the boundary of the blocking device 5, and a roller 13 is arranged in the gap between the conveying devices so as to be rotatably retractable. The conveying path is formed by a roller conveyor arranged in the conveying device 11 , rollers 13 , and a roller conveyor arranged in the conveying device 12 .

As a retraction structure for the rollers in the gap accompanying detection of the descent of the blocking wall shown in FIG. 26, the difference from the embodiment of FIG. It is to let

In FIG. 26, a rotating body such as a wheel or a projecting portion 53 is provided on a side portion of a predetermined position from below the blocking wall 52 . When the blocking wall 52 descends as indicated by the arrow a, the rotating body or projection 53 is detected and the roller 13 is retracted.

In FIG. 26, an inverted U-shaped member 101 is used to detect the descent of the blocking wall 52 and retract the roller 13, and the tip of the upper side is used as a rotating body or a detection portion for the projection 53, and the other end of the upper side is rotated. A shaft 103 is rotatably attached to the member attachment portion 102 . This upper side becomes the driving bar of the member 101 . A shaft 105 of the roller 13 is attached to the tip of the lower side of the member 101, and a pressing spring 106 is attached to the opposite end 104 thereof. When the blocking wall 52 is retracted, the U-shaped member 101 maintains the roller 13 at a predetermined position by the pressing force of the pressing spring 106, and the roller conveyor of the conveying device 11, the roller 13, and the roller conveyor of the conveying device 12 It forms a transport path. In this case, the lowering force of the blocking wall is greater than that of the pressing spring 106.

Further, instead of the pressure spring 106, a spring that pulls the roller 13 in the direction opposite to the direction of the arrow c may be provided between the rotating shaft 103 and the end portion 104 to maintain the normal position of the roller 13. FIG. Also, instead of these springs, weights may be used for tension.

When the blocking wall 52 descends, the rotating body or projection 53 arranged on the side surface of the blocking wall 52 rotates the upper side downward about the rotating shaft 103 of the U-shaped member 101 . Along with this, the lower side also rotates against the spring 106, and the roller 13 is retracted from the gap as indicated by the dotted line in the drawing.

In this way, the roller 13 can be moved and retracted from the gap to a predetermined position, and damage or the like caused by the descent of the blocking wall can be prevented.

Although not shown, the opposite side surface is also provided with a similar structure and is driven from both ends of the roller 13 . Also, if control can be physically performed only on one side due to the relationship between the members of the conveying path and the strength, it is not necessary to provide the same configuration on both ends. Also, the inverted U-shaped member shown in the figure, which is composed of the upper side, the lower side, and the side connecting the upper side and the lower side, may be made by integral molding. Further, the rotating shaft 103 may be provided between the position of the mounting portion 102 shown in the drawing and the tip on the blocking wall side. The upward rotation of the member 101 may be restricted by providing a stopper for restricting the member 101, or by restricting the rotating shaft.

FIG. 27 is a diagram for explaining a blocking mechanism of a conveying device according to the seventeenth embodiment of the invention.

In FIG. 27, the conveying device and the conveying device are arranged with a predetermined gap on the boundary of the blocking equipment, and the roller as the conveying path is arranged in the gap between the conveying devices so that it can be rotatably retracted, which is the same as the previous example. . The detection mechanism for detecting the operation of the blocking wall of the present invention comprises a detection section 271 and a support section (hook section) 273 for maintaining the roller 13 at a predetermined position as a conveying path, and is rotatably attached to a post 272 on the device side. It is A roller 13 is attached to a mounting plate 274 having a rotatable shaft on the conveying device 11 side. A stop pin 275 is attached to the central portion of the mounting plate 274 to maintain the roller 13 as the conveying path.

In FIG. 27, during normal operation, the support portion 273 of the detection mechanism hooks onto the stop pin 275 to hold the mounting plate 274 .

By the blocking operation of the blocking wall 52, at least a part of the blocking wall 52 becomes the detection part 271. For example, by pushing down the rod-like tip part, the support part 273 is disengaged from the stop pin 275, and the roller 13 is rotated by the rotation of the mounting plate 274. Rotate and retract downward.

In the example shown in FIG. 27, the detecting portion 271 and the supporting portion 273 are shown as integrally formed L-shaped rod-shaped bodies, but the present invention is not limited to rod-shaped bodies. It may be a combination of parts. Moreover, although the mounting plate 274 is also hinge-shaped, it is not limited to this shape.

Also, although not shown, the opposite side surface is similarly provided with a structure for detecting the descent of the blocking wall 52 and withdrawing the roller, and is driven from both ends of the roller 13 . Also, if control can be physically performed only on one side due to the relationship between the members of the conveying path and the strength, it is not necessary to provide the same configuration on both ends.

28A and 28B are diagrams for explaining a blocking mechanism of a conveying device according to an eighteenth embodiment of the present invention. FIG.

In FIG. 28 as well, the conveying devices are arranged with a predetermined gap on the boundary of the blocking equipment, and the rollers serving as the conveying paths are arranged in the gaps between the conveying devices so as to be rotatably retractable, as in the previous example. be. 27, the detection mechanism for detecting the operation of the blocking wall of the present invention is composed of a detection section 276 and a support section (hook section) 273 for maintaining the roller 13 at a predetermined position as a conveying path. It is rotatably mounted on side struts 272 . Further, the roller 13 is attached to a mounting plate 274 having a rotatable shaft on the conveying device 11 side. A stop pin 275 is attached to the central portion of the mounting plate 274 to maintain the roller 13 as the conveying path.

28 is different from FIG. 27 in that the detection section 276 of the detection mechanism detects, for example, the protrusion 53 provided on the blocking wall 52 .

In FIG. 28, during normal operation, the supporting portion 273 of the detection mechanism hooks onto the stop pin 275 and holds the mounting plate 274 .

Due to the blocking action of the blocking wall 52 , the protrusion 53 on the side surface of the blocking wall 52 pushes down the rod-shaped tip that serves as the detection part 271 , so that the support part 273 is disengaged from the stop pin 275 , and the roller 13 rotates the mounting plate 274 . to rotate and retract downward.

In the example shown in FIG. 28, the detecting portion 276 and the supporting portion 273 are shown as integrally formed L-shaped rod-shaped bodies, but the present invention is not limited to rod-shaped bodies. It may be a combination of parts. Moreover, although the mounting plate 274 is also hinge-shaped as in the previous example, it is not limited to this shape.

Also, although not shown, the opposite side surface is similarly provided with a structure for detecting the descent of the blocking wall 52 and withdrawing the roller, and is driven from both ends of the roller 13 . Also, if control can be physically performed only on one side due to the relationship between the members of the conveying path and the strength, it is not necessary to provide the same configuration on both ends.

29A and 29B are diagrams for explaining a blocking mechanism of a conveying device according to a nineteenth embodiment of the present invention. FIG.

In FIG. 29, the conveying device and the conveying device are arranged with a predetermined gap on the boundary of the blocking equipment, and the roller as the conveying path is arranged in the gap between the conveying devices so that it can be rotatably retracted, which is the same as the previous example. . The detection mechanism for detecting the operation of the blocking wall of the present invention is characterized by detecting at least a part of the blocking wall and moving it using the wall surface of the blocking wall as the blocking wall 52 blocks.

29, the detection mechanism 291 is composed of a first contact portion 292, a second contact portion 293, and a support portion (hook portion) 290 for maintaining the roller 13 at a predetermined position as a conveying path. It is rotatably attached to an elongated hole 296 for slide provided in a post 295 . Further, the roller 13 is attached to a mounting plate 298 having a rotatable shaft on the conveying device 11 side. A stop pin 299 is attached to the central portion of the mounting plate 298 to maintain the roller 13 as the conveying path.

In FIG. 29, during normal operation, the supporting portion 290 of the detection mechanism hooks onto the stop pin 299 and holds the mounting plate 298 . The detection mechanism is pulled and fixed to a post 295 by a stabilizing spring 294 so as to be stably positioned within the range of the blocking operation of the blocking wall 52 . This stabilizing spring 294 can be omitted due to lateral pressure in relation to the slot 296 and the stop pin 299 .

Due to the blocking operation of the blocking wall 52 , at least a portion of the blocking wall 52 presses down the first contact portion 292 to apply a rotational force. Along with this, the tip of the second contact portion 293 is caught and pushed by the wall surface of the blocking wall 52 or the groove 521 in the wall surface (the wall surface and the groove are also collectively referred to as the wall surface). As a result, the detection mechanism 291 slides in the elongated hole 296, the support portion 290 is disengaged from the stop pin 299, and the roller 13 rotates downward due to the rotation of the mounting plate 298. As shown in FIG.

In the example shown in FIG. 29, the detection section and the support section are integrally formed. Also, the mounting plate 298 is not limited to this shape.

Also, although not shown, the opposite side surface is similarly provided with a structure for detecting the descent of the blocking wall 52 and withdrawing the roller, and is driven from both ends of the roller 13 . Also, if control can be physically performed only on one side due to the relationship between the members of the conveying path and the strength, it is not necessary to provide the same configuration on both ends.

FIG. 30A is a perspective view of the blocking mechanism of the conveying device according to the twentieth embodiment of the present invention, viewed obliquely from above, and FIG. 30B shows the blocking mechanism of the conveying device of the present invention illustrated in FIG. FIG. 30C is an explanatory side view, and FIG. 30C is a plan view explaining the blocking mechanism of the conveying apparatus of the present invention illustrated in FIG. 30A;

In FIG. 30A, a mounting plate 263 having a rotating shaft 264 is provided on the side surface of the conveying device 11 . This mounting plate 263 has a roller mounting portion 265 on its tip side. The rollers 13 , which serve as a conveying path having a retracting mechanism of the conveying device, are attached to this attachment portion 265 . Further, an L-shaped support 266 is provided on the side surface of the transfer device 11 as a detection mechanism for the blocking wall 52 . As shown in FIG. 30B, a holding member 267 is attached to the post 266 with an inclination to hold a predetermined portion of the mounting plate 263 of the roller. The upper part of the holding member 267 is attached to the support 266 through a long hole so as to be movable outward, and the bent part 2671 at the lower end supports the lower surface of the mounting plate 263 .

When the blocking wall 52 descends due to the blocking operation, the protrusion 53 provided on the wall surface of the blocking wall 52 moves downward as indicated by the arrow a1 in the figure and acts to widen the inclination of the holding member 267 . The bent portion 2671 of the holding member 267 is removed from the lower side of the mounting plate 263 as indicated by the arrow a2, and the roller 13 is rotated downward.

The plan view of FIG. 30C shows a state in which at least a portion of blocking wall 52 or protrusion 53 pushes holding member 267 outward from the conveying path, and roller 13 is retracted from the gap between conveying device 11 and conveying device 12. In FIG. showing.

Although FIG. 30A, FIG. 30B, and FIG. 30C show the strut 266, the holding member 267, etc., only on one side, the structure for detecting the descent of the blocking wall 52 and retracting the rollers is also shown on the opposite side. , and driven from both ends of the roller 13 . Also, if control can be physically performed only on one side due to the relationship between the members of the conveying path and the strength, it is not necessary to provide the same configuration on both ends.

In addition, in the embodiments illustrated in FIGS. 22 to 30C, the conveying path can be retracted entirely by mechanical drive without using electric power.

Each of the embodiments described above can further include means for removing the conveying path and/or the conveyed article on a part of the conveying path. The means for removing the conveyed article may be any mechanism that removes the conveyed article on the conveying path within a range that interferes with the blocking operation of the blocking wall. The mechanism may have a function of detecting a conveyed article on the conveying path and ejecting or ejecting the conveyed article from the conveying path.

In each of the embodiments described above, a roller-type conveying path having a retraction mechanism may be used instead of a belt conveyer, and vice versa. is not limited to Further, in each embodiment, an example of retracting to the conveying device 11 side as a retracting mechanism has been described, but the retracting mechanism may be configured to retract to the conveying device 12 side, and the retracting direction is not limited.

As described above with reference to the drawings, it is possible to safely perform the shut-off operation without damaging or damaging the shut-off wall such as the fire shutter and without damaging or damaging the conveying device or the like in the event of a disaster or the like.

In addition, the interrupting mechanism of the conveying path can be driven by an emergency power supply even in the event of a power failure or power interruption, and can be handled without depending on electric power by air driving or mechanical driving.

It should be noted that each of the embodiments described with reference to the drawings is only an example, and any configuration that can be similarly applied as a retraction and blocking mechanism for the transport path in terms of the relationship between the transport path and the blocking wall is exemplified as the transport path. , roller conveyor type, belt conveyor type, and the like.

Moreover, it is not intended to be construed as being limited to the arrangement configuration, equipment configuration, dimensions, etc., given as illustrated examples. Also, portions not directly related to the present invention may be omitted, and should not be construed as being limited to the illustrated examples.

The embodiments described above are provided as examples for understanding the present invention, and the present invention is not limited to these embodiments but is defined by the claims. In addition, as long as they do not deviate from the technical idea of the present invention, configurations equivalent to those described in the claims are also included in the scope of protection of the present invention.

According to the present invention, even if the conveying device is placed at a position that interferes with the operation of the blocking wall, such as a fire shutter, by detecting the blocking operation of the blocking wall in advance, the device on the conveying path can be detected. It is possible to evacuate a part of the transport path and safely block it without breaking, damaging, or damaging the function of the blocking wall. When applied to storage warehouses, manufacturing equipment, transportation equipment, etc., it is highly safe and has a large economic effect in terms of equipment construction.

Reference Signs List 1, 11, 12 Conveying device 101 Members 103, 21, 251, 264, 1140 Rotating shafts 111, 112, 113, 114, 121 Conveyor 115 Conveying path (inclined plate)
115a, 115b Plate material 13 Roller 2 Rotary side plates 21, 22 Shaft 21 Rotating shaft 23 Sliding member 24 Rail 25 Roller holding member 253, 263, 274, 298 Mounting plate 265 Mounting portion 266, Reference numerals 272, 295: Strut 267: Holding member 2671: Bending portions 271, 276, 292, 293, 410: Detecting portions 273, 290: Supporting portions (hook portions)
275, 299... Stop pin 294... Stabilizing spring 296... Long hole 3, 3a, 3b... Air cylinder 30, 254, 416... Spring member 300... Emergency power source 301, 303... End 302... Tension member 304, 821, 97... Weight 305... Piece members 31, 31a, 31b... Piston rod 310... Driving rod (bar)
32, 33, 32a, 33a, 32b, 33b, 43, 44... Air pipes 321, 322, 321a, 321b... Air supply/discharge port 34... Fixed part 340... Drive devices 36, 37... Rotating body 38... Air switch 381 , 382 Air selector switch 383 Electrical wiring 39 Air gas supply source 390 Compressor 391 Auxiliary air gas supply source (auxiliary tank)
392 Air wiring (piping)
393... Connection port 4, 40... Detection mechanism 41, 411... Detection pin 412... Flexible member 415... Block material 42, 420... Changeover switch 430... Signal line 45... Release switch 5... Blocking device 51... Guide rail 52... Blocking wall 521... Groove in wall surface 53... Rotating body or protrusion 7, 731, 732, 8, 98, 106, 963... Spring (spring)
73, 83 Guide plates 74, 84 Stop pins 75, 85, 86 Tops 76, 95 Wire 91 Arm 92 Wheel 93 Idle wheel 96 Stopper 962 End 99 Fixed member

Claims (14)

detection means for detecting the blocking operation of the blocking wall;
urging means for urging the conveying path in the gap corresponding to the blocking position of the blocking wall in a direction to retreat ;
a normal power supply and an emergency power supply that supply power for operating the urging means;
with
At least one of when the urging means is driven by the normal power supply in a normal state, and when the detecting means detects the blocking operation of the blocking wall, and when the power is switched to the emergency power supply during a power failure. When an event occurs, the urging means is driven by an emergency power supply to cause the urging means to move the drive rod attached to the member pivotally supported by the rotating shaft of the rotating body constituting the conveying path. A blocking mechanism for a conveying device characterized by being biased by pushing/pulling. 2. A blocking mechanism for a conveying device according to claim 1, wherein said biasing means is biased by a motor drive. 3. The shut-off mechanism of a conveying device according to claim 1, wherein wiring to said detecting means and said urging means is made of incombustible material and/or metal pipe. 4. A shut-off mechanism for a conveying device according to claim 3, wherein said metal pipe is a copper pipe. The urging means may be rotationally driven, slidingly driven, or retracted in a direction opposite to the conveying direction of the conveying path by reducing a space between a plurality of rotating bodies arranged in the lateral direction constituting the conveying path. 5. The conveying apparatus according to any one of claims 1 to 4, wherein the conveying path is retracted by pulling in a direction opposite to the conveying direction of the conveying path and driving in the opposite direction, or a combination thereof. shut-off mechanism. 6. The shut-off mechanism for a conveying apparatus according to claim 1, wherein a power outage and/or power interruption is automatically detected to switch to the emergency power supply. 6. Shutoff of a conveying apparatus according to any one of claims 1 to 5, wherein the biasing means is activated by the operation of any one or combination of fire alarms or smoke detectors or sprinkler systems. mechanism. 8. The conveying apparatus according to any one of claims 1 to 7, wherein said detection means for detecting the blocking operation of said blocking wall is based on either light detection, sound wave detection, or radio. shut-off mechanism. The biasing means is disposed between an air cylinder, an air gas supply source for supplying air to the air cylinder, and between the air cylinder and the air gas supply source to reverse supply and discharge of air to the air cylinder. and a second air selector switch disposed between the air cylinder and the first air selector switch for reversing supply and discharge of air to the air cylinder,
The emergency power supply drives the first air changeover switch when the detecting means detects the blocking operation of the blocking wall. 9. The shut-off mechanism for a conveying device according to any one of claims 1 to 8, wherein two air selector switches are driven . detection means for detecting the blocking operation of the blocking wall;
a retracting means for retracting the conveying path in the gap corresponding to the blocking position of the blocking wall;
The detection means has a detection portion for detecting movement of the blocking wall and a support portion for supporting the retraction means,
A first rod-shaped body that constitutes the detection section, and a second rod-shaped body that is connected to an end portion of the first rod-shaped body that faces the blocking wall side end so as to form a substantially right angle with the first rod-shaped body. and the end of the second rod opposite to the end connected to the first rod is connected to the second rod so as to form a substantially right angle with the second rod to constitute the support part. A third rod-shaped body is formed by being connected in this order,
The retracting means holds the conveying path by engaging a rod-shaped body internal corner portion formed by the second rod-shaped body and the third rod-shaped body with a stop pin, and the first rod-shaped body is A blocking mechanism for a conveying device, wherein the locking pin is disengaged from the inner corner of the rod-shaped body by being pushed downward by the blocking operation of the blocking wall, thereby retracting the conveying path. 11. A blocking mechanism for a conveying apparatus according to claim 10, wherein said detecting portion of said detecting means detects movement of at least a part of said blocking wall. The blocking wall has a protrusion,
11. A blocking mechanism for a conveying device according to claim 10, wherein said detecting portion of said detecting means detects movement of said projecting portion. 11. A blocking mechanism for a conveying device according to claim 10, wherein said detecting portion of said detecting means has an inclination, and said blocking wall expands said inclination to release said engagement. 14. The blocking mechanism of the conveying apparatus according to any one of claims 1 to 13, further comprising means for removing the conveyed article on the conveying path and/or part of the conveying path.

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