JP3303124B2 - Apparatus and method for preventing access of traveling body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for moving two or more vehicles in a traveling path supported between adjacent columns when a plurality of traveling bodies travel on the same traveling path supported from below by the columns. The present invention relates to a device and a method for preventing approach of a traveling body for preventing a body from entering.

[0002]

2. Description of the Related Art Conventionally, as a device for preventing a vehicle from approaching as described above, a "device for preventing a collision of a vehicle such as a crane" disclosed in Japanese Patent Application Laid-Open No.
No. 247689 discloses a "crane collision prevention device".

[0003] The "anti-collision device for a traveling object such as a crane" disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 58-155761 is a device for preventing collision of a traveling object such as a crane which is disposed on a plurality of same traveling paths. A light beam supply means for supplying a light beam generated from a light beam generator disposed at a position to a required position of each traveling body, and scanning and irradiating the supplied light beam to an adjacent traveling body. A light beam scanning means disposed at a predetermined position, and a reflection means disposed at an irradiation area of the light beam of each of the adjacent traveling bodies and reflecting an incident light beam as a reflected light beam in the same direction as the incident direction. A reflected light beam detector disposed on each traveling body to detect the reflected light beam; and a reflected light beam detector disposed on each traveling body to detect an incident angle of the reflected light beam to the reflected light beam detector. Angle detector and angle detection More resulting detection result is provided with a travel control circuit disposed in each traveling member so allowed to stop the travel drive if it matches the value set in advance.

[0004] More specifically, a laser beam generated by a laser beam generator housed in a case of a traveling body is applied to a half mirror, and a beam passing through the half mirror is reflected by a reflection mirror and a half mirror. Incident on the scanning mirror. The beam is reflected as a reflected beam to the scanning mirror. These beams are input to a control circuit to control a motor of the traveling body, thereby preventing a plurality of traveling bodies arranged on the same traveling path from colliding.

[0005] Further, the "collision prevention device for crane" disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 6-247689 discloses a method in which two cranes (A) and (B) are mounted on the same track laid between a pair of wall surfaces. The two cranes (A) and (B) are supported so that they can travel, and the two cranes (A) and (B) predict collisions with their respective wall surfaces and the other crane. A first transmitting unit for projecting a radar wave toward the first and a first receiving unit for receiving a reflected wave from the mating crane (B); a second transmitting unit for projecting the radar wave toward one wall; A second receiving unit that receives a reflected wave from one wall, and a first crane and another crane based on information from the first and second transmitting units and the first and second receiving units. Calculate the distance and the distance between the other crane and the other wall That it is provided with an operation circuit.

At the position of one of the cranes, the distance between the crane, the one wall surface and the other crane, and the distance between the other crane and the other wall surface are detected based on those distances. Or, each of the cranes is prevented from collision with the wall.

[0007]

Normally, when a plurality of traveling bodies travel on the same traveling path supported from below by a column, the strength of the traveling path supported between adjacent columns is one. It is designed to have the strength necessary and sufficient for the traveling body to travel.

However, if there is a possibility that a plurality of traveling bodies may enter the traveling path supported between the adjacent columns at the same time and exceed the above-mentioned design strength, from the viewpoint of safety and the like, the above-mentioned structure may be adopted. It is necessary to prevent a plurality of traveling bodies having a total weight exceeding the design strength from entering the traveling path.

However, the above-mentioned conventional traveling body approaching prevention device can prevent a plurality of traveling bodies traveling on the same traveling road from abnormally approaching or colliding with each other. There was a problem that it was not possible to prevent two or more traveling bodies from entering the traveling path supported between them.

Further, the distance of the traveling path supported between the adjacent columns, that is, the distance of one span is not always the same in all spans. For this reason, when the above-described conventional traveling body approaching prevention device is used, it is necessary to set the approaching prevention distance so that a plurality of traveling bodies do not enter within the maximum span distance.

However, when the approach preventing distance is set on the basis of the maximum span distance in this manner, in a span where the distance of one span is short, the traveling body may not be able to enter the span, and the working efficiency is extremely high. There was a problem that it was lowered.

Accordingly, the present invention has been made in view of the above-mentioned problems of the related art, and does not reduce workability when a plurality of traveling bodies travel on the same traveling path supported from below by pillars. An object of the present invention is to provide a traveling body approaching prevention device and an approaching prevention method that can reliably prevent two or more traveling bodies from entering a traveling path supported between adjacent columns.

[0013]

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above object, and has the following features.

According to the first aspect of the present invention, when a plurality of traveling bodies travel on the same traveling path supported from below by a column, two or more traveling bodies are supported in a traveling path supported between adjacent columns. An approach prevention device for a traveling body for preventing the body from entering, wherein each traveling body has a launching device that emits a light wave to an adjacent traveling body, and a launching device that is fired from an adjacent traveling body. A light receiving device for receiving a light wave, and when the light receiving device receives a light wave emitted from a launching device provided on an adjacent traveling body, the traveling body moves in a direction approaching the adjacent traveling body. And a striker provided toward an adjacent traveling body, and a support position above the traveling path is provided at a shielding position for always shielding a light wave emitted from a launching device of the traveling body. And the above Displaced by car in characterized by comprising a shield member movable to and shielding release position for releasing the shielding of the light wave.

[0015] The invention according to claim 2 is the above-described claim 1.
In addition to the configuration of the invention described, the shielding member, for each pillar,
It is characterized in that one pair is provided in the length direction of the traveling path with the support interposed therebetween.

The third aspect of the present invention is the first aspect of the present invention.
Alternatively, in addition to the configuration of the invention described in claim 2, the shielding member is made of a goodwill-like non-reflective light shielding material.

According to a fourth aspect of the present invention, when a plurality of traveling bodies travel on the same traveling path supported from below by the pillars, two or more traveling bodies travel in the traveling path supported between the adjacent pillars. A method for preventing approach of a traveling body for preventing the body from entering, wherein a light wave is emitted from a launching device provided on each traveling body toward an adjacent traveling body, and is always provided at each pillar position. The shielding member is in the shielding position and shields the light waves, and when the striker provided in each traveling body pushes the shielding member away and moves to the shielding release position, the light receiving device provided in each traveling body is moved from the adjacent traveling body. The apparatus is characterized in that the emitted laser light is received, and that the traveling body is prevented from moving toward an adjacent traveling body by a movement inhibiting means provided on each traveling body.

Since the present invention has the above-described configuration, it has the following effects. According to the first or fourth aspect of the invention, when a plurality of traveling bodies travel on the same traveling path supported from below by the columns, each traveling body transmits light waves from the launching device to the adjacent traveling body. Is firing.

In addition, the support position above the traveling path is moved to a shielding position where the light wave emitted from the launching device of the traveling body is always shielded, and a shielding release position where the light wave is released by the striker and the shielding of the light wave is released. A possible shielding member is provided. Since the light waves emitted from the traveling body are always shielded by the shielding member, the light waves are not received by the light receiving device of the adjacent traveling body. In this state, each traveling body can travel freely and move.

On the other hand, when the striker provided on the traveling body pushes the shielding member away from the shielding position, the light wave emitted from the launching device of the traveling body is irradiated on the adjacent traveling path. At this time, if another traveling body is present in the adjacent traveling path, the light receiving device of each traveling body will receive the light wave emitted from the launching device of the other traveling body. In this state, the movement preventing means provided on each traveling body prevents the traveling body from moving toward an adjacent traveling body.

Also in this state, since each traveling body can move in a direction in which the traveling body moves away from the adjacent traveling body, any traveling body moves in a direction away from the adjacent traveling body. When the light wave emitted from the launching device of the adjacent traveling body is shielded by the shielding member, the movement inhibition of the traveling body by the movement inhibiting means is released, and each traveling body returns to a state where it can travel freely and move. .

Therefore, according to the first or fourth aspect of the present invention, even on a traveling path having a different span distance, the traveling path supported between the adjacent columns is maintained without lowering the workability. It is possible to reliably prevent two or more traveling bodies from entering.

According to the second aspect of the present invention, when a traveling body is present in each of the adjacent traveling paths, a striker provided on the traveling body traveling in one traveling path is adjacent to the striker of the pair of shielding members. When the shield member in the other traveling path is pushed away from the shield position to the shield release position, or when the striker provided on each opposing traveling body pushes each of the pair of shield members to the shield release position. Only, the light wave emitted from the launching device is applied to the adjacent traveling path. Therefore, even if the traveling bodies exist in the adjacent traveling paths, each traveling body can approach the vicinity of the support, and the workability can be further improved.

According to the third aspect of the present invention, the shielding member is made of a goodwill-like non-reflective light shielding material. Therefore, the structure of the shielding member is simplified, and equipment costs can be reduced.

[0025]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a schematic explanatory view of a traveling body approaching prevention device according to the present invention, FIG. 2 is a partial plan view of the traveling body approaching prevention device in FIG. 1 as viewed from above, and FIG. 3 is a side view of the traveling body. 4, FIG. 4 is a partial plan view of the traveling body viewed from above in FIG. 3, FIG. 5 is a front view of the shielding member, FIG. 6 is a side view of the shielding member, and FIG. FIG. 8 is a side view of the member and the striker, and FIG. 8 is a side view of the traveling body and the shielding member installed on the traveling path.

1 and 3, reference numeral 1 denotes a traveling body approaching prevention device 1 according to the present invention.
Are provided on each of the cranes 2 as traveling bodies, and emit a light wave to the adjacent crane 2, a light receiving device 4 for receiving the light wave emitted from the adjacent crane 2, and a light receiving device 4. A movement preventing means 5 for preventing the crane 2 from moving in a direction approaching the adjacent crane 2 when receiving a light wave emitted from the launching device 3 provided on the adjacent crane 2; A striker 6 provided to the matching crane 2 and a launching device 3 of the crane 2 provided at a position of a support 8 above the traveling path 7
And a shielding member 9 which can be moved to a shielding position where the light wave emitted from the light source is always shielded, and a shielding release position where the light wave is released by the striker 6 and the shielding of the light wave is released.

As shown in FIGS. 3 and 8, the above-described crane 2 is installed on the same traveling path 7 supported from below by columns 8. As shown in FIG. 8, the distance of the traveling path 7 supported by the adjacent columns 8, that is, the span distance of the traveling path 7 is not the same in all spans. For example, in this embodiment, the span distance is about 15 m at the longest and about 10 m at the shortest.

The crane 2 installed on the traveling path 7
Is composed of, for example, a self-propelled crane 2 as shown in FIGS. 3, 4, and 8. In this embodiment, a small crane 2a and a large crane 2b are installed on the same traveling path 7.

Therefore, the large crane 2
When one vehicle b is traveling, if the driving operation is performed, it is possible to make the small crane 2a enter the same span of the traveling path 7 further, but if there is a problem in the strength of the traveling path, However, from the viewpoint of safety and the like, it is impossible to allow another small crane 2a to enter the same span of the travel path 7. Of course, when one large crane 2b is traveling on the traveling path 7, one more large crane 2b cannot enter the same span of the traveling path 7.

As shown in FIGS. 1 to 4, the above-mentioned large crane 2b is composed of a roll transport crane, and supports a support rod 11 upward and backward on a frame 10 of a bogie installed on a traveling path 7, respectively. The striker 6 is provided upright at the upper end of the support rod 11.

As shown in FIGS. 1 to 4, the small crane 2a is composed of a hoist crane, and is mounted at one end adjacent to the large crane 2b on a frame 12 of a bogie to be installed on the traveling path 7. The support rod 13 is provided upright, and the striker 6 is provided at the upper end of the support rod 13.

As shown in FIGS. 1 to 4, the striker 6 is formed of a plate-like member whose front and rear ends are tapered toward the front end, and pushes back the shielding member 9 at the front and rear ends. ing.

As shown in FIGS. 1 to 4, the above-described launching device 3 and light receiving device 4 support the support rod 1 standing on the frames 10 and 12 of the large crane 2b or the small crane 2a.
The lower and upper cranes 1 and 13 are attached to the adjacent large crane 2b or small crane 2a.

The launching device 3 is a device for emitting a light wave by, for example, a light emitting diode. The light receiving device 4 is a device that receives a light wave emitted by the emitting device 3 and generates a light receiving signal. Further, a movement preventing means 5 composed of a microcomputer or the like is provided integrally with the emitting device 3 and the light receiving device 4.

In this embodiment, the launching device 3 and the light receiving device 4 are arranged side by side, and an amplifier box in which circuits such as the movement preventing means 5 for controlling the launching device 3 and the light receiving device 4 are integrated into an IC is integrated. Although provided, the launching device 3 and the light receiving device 4
May be provided separately, or a control circuit may be separately provided.

In this embodiment, the adjacent cranes 2
Although the light wave emitted from the launching device 3 provided in the light receiving device 4 is received by the light receiving device 4, a reflecting plate is provided on the adjacent crane 2, and the light wave is emitted from the launching device 3 toward the reflecting plate, and the light is emitted by the reflecting plate. It is also possible to configure so that the reflected light wave is received by the light receiving device 4.

However, when the light wave is reflected by the reflecting plate, the reflected light is diffused, so that the adjacent crane 2
May not be detected, and in order to reliably detect the adjacent cranes 2, as described above, each crane 2
It is preferable that a light emitting device 3 and a light receiving device 4 are provided in the device, and a light wave emitted from an adjacent emitting device 3 is received by the light receiving device 4.

Next, the shielding member 9 will be described with reference to FIGS. As shown in FIGS. 5 to 8, the above-described shielding member 9 is disposed above each of the columns 8 and below a trolley wire 14 provided above the traveling path 7 with a predetermined interval sandwiching each of the columns 8. Each pair is provided at a distance.

Each of the shielding members 9 is made of a rubber plate material having a flexible and elastic, non-reflective and light-shielding property, and the upper portion of the rubber plate material is attached to the wall surface 1 of the building.
5 and the like, and is rotatably supported by a support member 16 extending toward the traveling path 7.

In this embodiment, the dimension of the shielding member 9 in the height direction is about 0.5 m, and the interval between the pair of shielding members 9 and 9 is several meters. The present invention can be appropriately changed and implemented based on the mounting position of the striker 6 and the like.

At both ends of the traveling path 7 shown in FIG. 8, the shielding member 9 is supported by a support post so as not to travel on the left side of the left end traveling path 7 and the right side of the right end traveling path 7 for work. Only one location is provided directly above the reference numeral 8.

In addition to the rubber plate material described above, any other light-shielding member having light-shielding properties and non-reflection properties, as well as abrasion resistance and the like, may be used as the shielding member 9. For example, a metal plate, a resin plate, an acrylic plate, or the like may be used.

The operation of the above-mentioned shielding member 9 will be described with reference to FIG. The shielding member 9 always hangs downward from the support member 16 by its own weight, and
Is located at a shielding position for shielding the light wave emitted from the camera (shown by a broken line in FIG. 7).

When the striker 6 provided on the crane 2 is pushed forward while contacting the shielding member 9,
Is rotated about the support member 16 in the traveling direction of the crane 2, is bent at about the middle and lifts upward, and is pushed away by the striker 6 to move to the shielding release position where the shielding of the light wave is released ( FIG. 7 shows a solid line).

Thus, the crane 2 (small crane 2a or large crane 2b) traveling on the traveling path 7
When the striker 6 provided at the position pushes out the shielding member 9 in the other adjacent traveling path 7 of the pair of shielding members 9 from the shielding position to the shielding release position, or the inside of the adjacent traveling path 7 When the striker 6 provided on each of the traveling cranes 2 (the small crane 2a and the large crane 2b) pushes each of the pair of shielding members 9, 9 to the shielding release position, the two cranes 2 (the small crane 2a).
Light waves emitted from the launching device 3 of the large crane 2b) are irradiated into the adjacent traveling path 7.

When the light receiving device 4 of each crane 2 receives the light wave emitted from the launching device 3 of the crane 2 traveling in the adjacent traveling path 7, each crane 2 is moved Movement in the approaching direction is prevented, and two or more cranes 2 and 2
Can be prevented from entering.

For example, the movement preventing means 5 that has received the light receiving signal from the light receiving device 4 is configured to prevent the movement of the crane 2 by the movement preventing means 5 with respect to driving means (not shown) such as a motor for driving the crane 2. Is performed by performing control such that the cranes 2 can be driven only in directions away from each other.

In a state in which the adjacent cranes 2 are prevented from approaching in this manner, one of the cranes 2 is moved in a direction away from the adjacent cranes 2 to emit light waves emitted from the launching device 3 of the adjacent cranes 2. Is shielded by the shielding member 9, the movement inhibition means 5 stops the movement of the crane 2 from being released, and each of the cranes 2 can travel freely and move, and the work can be resumed.

Next, another embodiment of the mounting position of the shielding member 9 will be described with reference to FIG. FIG. 9 is a side view of the crane 2 and the shielding member 9 installed on the traveling path 7 in another embodiment of the mounting position of the shielding member 9.

In this embodiment, one shielding member 9 is attached directly above the column 8.
Other configurations are the same as those of the embodiment in which the pair of shielding members 9 are attached, and thus the same reference numerals are given and the description is omitted.

In this embodiment, the length of the shielding member 9 made of a rubber plate material in the height direction is set slightly longer than in the embodiment in which the pair of shielding members 9 and 9 are attached. Since the time required for the striker 6 to push away the shielding member 9 can be set long, each crane 2 can be brought close to the column 8 and the workability can be improved.

[0052]

Since the present invention has the above-described structure,
The following effects can be obtained.

According to the first or fourth aspect of the present invention,
When the striker provided on the traveling body pushes the shielding member away from the shielding position toward the shielding release position, light waves emitted from the launching device of the traveling body are irradiated on the adjacent traveling path,
When there is another traveling body in the adjacent traveling path, the light receiving device of each traveling body receives the light wave emitted from the launching device of the other traveling body, and the light receiving device is provided by the movement inhibiting means provided on each traveling body. The traveling body is prevented from moving toward the adjacent traveling body.

Therefore, according to the first or fourth aspect of the present invention, even on a traveling path having a different span distance, the traveling path supported between the adjacent columns is maintained without lowering the workability. It is possible to reliably prevent two or more traveling bodies from entering.

According to the second aspect of the present invention, when a traveling body exists in each of the adjacent traveling paths, a striker provided on the traveling body traveling in one traveling path is adjacent to the striker of the pair of shielding members. When the shield member in the other traveling path is pushed away from the shield position to the shield release position, or when the striker provided on each opposing traveling body pushes each of the pair of shield members to the shield release position. Only, the light wave emitted from the launching device is applied to the adjacent traveling path.

Therefore, even if the traveling bodies are present in the adjacent traveling paths, each traveling body can lean close to the column, and the workability can be further improved.

According to the third aspect of the present invention, the shielding member is made of a non-reflective non-reflective light shielding material.

Therefore, the structure of the shielding member is simplified, and the equipment cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a traveling body approach prevention device according to the present invention.

FIG. 2 is a partial plan view of the traveling body approaching prevention device in FIG. 1 as viewed from above.

FIG. 3 is a side view of the traveling body.

FIG. 4 is a partial plan view of the traveling body in FIG. 3 when viewed from above.

FIG. 5 is a front view of the shielding member.

FIG. 6 is a side view of the shielding member.

FIG. 7 is a side view of the shield member and the striker illustrating the operation of the shield member.

FIG. 8 is a side view of a traveling body and a shielding member installed on a traveling path.

FIG. 9 is a side view of a traveling body and a shielding member installed on a traveling path in another embodiment of a mounting position of the shielding member.

[Explanation of Signs] 1 Access prevention device 2 Crane 2a Small crane 2b Large crane 3 Launching device 4 Light receiving device 5 Movement prevention means 6 Striker 7 Travel path 8 Prop 9 Shielding member 10 Frame (large crane) 11 Support rod (large crane) 12 Frame (small crane) 13 Supporting rod (small crane) 14 Trolley wire 15 Building wall 16 Support member

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-58-155761 (JP, A) JP-A-53-75656 (JP, A) JP-A-6-247689 (JP, A) 156191 (JP, U) Japanese Utility Model 2-91779 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B66C 15/04 B60R 21/00

Claims (4)

(57) [Claims] When a plurality of traveling bodies travel on the same traveling path supported from below by pillars, two or more traveling bodies enter a traveling path supported between adjacent pillars. An approach prevention device for a traveling body for preventing, wherein each traveling body includes a launching device that emits a light wave to an adjacent traveling body, and a light receiving device that receives a light wave emitted from an adjacent traveling body. When the light receiving device receives a light wave emitted from a launching device provided on an adjacent traveling body, the movement inhibiting means for preventing the traveling body from moving in a direction approaching the adjacent traveling body. And a striker provided toward an adjacent traveling body. The strut position above the traveling path includes a shielding position for always shielding a light wave emitted from a launching device of the traveling body, and the striker. Push Dismissed are in approach prevention device of the traveling body characterized by having a shielding member movable to and shielding release position for releasing the shielding of the light wave. 2. The traveling body approaching prevention device according to claim 1, wherein a pair of shielding members are provided for each of the columns in the longitudinal direction of the traveling path with the columns interposed therebetween. 3. The traveling body approaching prevention device according to claim 1, wherein the shielding member is made of a curtain-like non-reflective light shielding material. 4. When two or more traveling bodies travel on the same traveling path supported from below by a column, two or more traveling bodies enter the traveling path supported between adjacent columns. A method of preventing approach of a traveling body for preventing, wherein a light wave is emitted from a launching device provided on each traveling body toward an adjacent traveling body, and a shielding member provided at each support position is always in a shielding position. In addition to shielding the light waves in the above, when the striker provided in each traveling body pushes the shielding member to move to the shielding release position, the light receiving device provided in each traveling body emits laser light emitted from the adjacent traveling body. A method for preventing approach of a traveling body, comprising: receiving light and preventing the traveling body from moving toward an adjacent traveling body by a movement inhibiting means provided on each traveling body.