JP3210604B2 - Transport trolley operating device - 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 of constructing a tunnel, in which a carrier for transporting materials such as segments sent from the ground into a shaft is sent out from the shaft onto a track laid in a tunnel, and after the material is transferred, the material is transported from the track. The present invention relates to a transport trolley operating device for transferring to a shaft and sending it to the ground.

[0002]

2. Description of the Related Art Conventionally, as such a transport vehicle operating device, as shown in FIG. 8, a material transport vehicle 20 which is carried in from above the ground on a rear wall side bottom of a shaft A by a lifting means.
And a turning mechanism 30 for transferring the track 10 on the transport start end of the track 10 laid in the tunnel T, and laying a branch track 11 from the track 10 toward the shaft A side.
It is configured such that the starting vehicle 90 is on standby on 11.

[0003] After the material transporting trolleys 20 sequentially loaded from the ground onto the turning mechanism 30 are transferred from the turning mechanism 30 onto the track 10 and connected sequentially, the starting vehicle waiting on the branch track 11 is connected. 90 is moved forward and connected to the rear end of this row of material transport carts, transported to the material construction site such as a segment by the starting vehicle 90, and then the empty transport cart 20 is again moved to the shaft A side by the starting vehicle 90. Tow the starting vehicle 90
Is separated from the row of carrier trucks and waits on the branch track 11 side,
The transport vehicles 20 are sequentially sent to the turning mechanism 30, and are carried out to the ground side by the elevating means.

[0004]

According to the above-mentioned transporting vehicle operation system, in order to send out the empty transporting vehicle 20 to the turning mechanism 30 after the material is loaded into the tunnel, first, the starting vehicle 90 is transported. Although it is necessary to separate from the bogie train and make it stand by at a place distant from the track 10, as the waiting method, since the branch track 11 is laid conventionally as described above, the starting vehicle 90 is After being sent to the branch track 11, the row of transport carts must be moved to the turning mechanism 30 by manual pushing, and this work requires a great deal of labor and labor.

[0005] Further, when the transport vehicle 20 loaded with materials such as segments is sent from the revolving mechanism 30 onto the track 10, the transport vehicle 20 at the rear end is sequentially turned to the state where it has passed the branch track 11 forward. However, there is a problem that the work efficiency has to be remarkably reduced because the work has to be sent by manual push, requiring more labor and time.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a material transporting trolley fed from a turning mechanism to the end of a track without requiring any manual operation.
Sequentially to the position where the last carrier can be connected to the starting vehicle,
It is an object of the present invention to provide a transport trolley operating device that automatically and efficiently transports a transport trolley, which has been automatically transported and has completed material transport, to a position of a turning mechanism.

[0007]

According to a first aspect of the present invention, there is provided a transport vehicle operating apparatus configured to transport a plurality of connected transport vehicle trains on a track by a starting vehicle. In the transporting vehicle operating device described above, a groove corresponding to the length of the row of transporting vehicles is provided below the track along the track, and a first transporting vehicle is loaded and transported one by one in the groove. At the end of the groove, a transverse groove orthogonal to the groove is provided, and a second lift truck on which the starting vehicle is mounted and temporarily waits from a track is disposed in the transverse groove. A split track piece having a length obtained by splitting the track portion on the transverse groove is fixed to the second hoisting truck.

The invention according to claim 2 is the first and second inventions.
A running track of the first hoisting truck, wherein the running track of the first hoisting truck is laid in the groove without the portion of the transverse groove. A running track of the second lifting truck is laid below the running track.

According to a third aspect of the present invention, there is provided the structure of the first hoisting truck, wherein the first hoisting truck is provided with a carrier bogie cradle which moves up and down by operation of a jack on a bogie main body.
The invention according to claim 4 is the structure of the second hoisting truck, wherein the second hoisting truck is provided with a starting vehicle receiving stand which is raised and lowered by operation of a jack on one half of the bogie main body. A track portion of a transverse groove portion of the track laid in the groove is mounted on the other half. or,
The invention according to claim 5 is characterized in that the material transporting trolley and the starting vehicle are provided with connecting pins projecting downward at the front and rear ends thereof and connecting holes into which the connecting pins can be fitted, respectively.

[0010]

A transport truck loaded with materials such as segments from the ground is carried into the turning mechanism on the bottom of the shaft by the lifting equipment, and the turning mechanism is turned so that the material transport truck is directed to the end of the track laid in the tunnel. . At this time, the first hoisting carriage movably disposed in the groove is moved to the track end side and kept on standby, while the second hoisting carriage in the transverse groove is the first hoisting carriage. In order not to hinder the running of the vehicle, the vehicle is kept on standby at the back of the crossing groove with the starting vehicle mounted. In this state, the material transporting trolley is mounted on the transporting trolley cradle of the first lifting trolley from the turning mechanism, and the first lifting trolley is moved along the track to the front end of the groove, and then the transporting trolley is received. By lowering the platform, the material transport trolley on the receiving platform is placed on the track.

Next, the first lift truck is retracted to the end of the track, and the material transporting truck transported from the ground onto the turning mechanism is mounted on the first lift truck, and the material previously fed along the track is transported. After being transported to the rear end side of the transport vehicle, the material transport vehicle is placed on the track by lowering the transport vehicle cradle, and its front end is connected to the rear end of the material transport vehicle on the front side. Hereinafter, in the same manner, a plurality of material transport vehicles are sequentially mounted from the turning mechanism side on the first hoisting vehicle, placed on the track on the rear end side of the material transport vehicle sent in earlier, and connected to each other. After that, the second lifting truck waiting in the crossing groove is moved to below the track end, and the starting vehicle cradle is lowered to connect the divided track pieces to the above track and start on the track. A vehicle is placed, and a front end of the starting vehicle is connected to a rear end of a rearmost transportation vehicle in a material transportation vehicle train formed by connecting a plurality of vehicles.

In this state, the starting vehicle is driven to convey the material conveying vehicle train to the construction site in the tunnel, and after supplying the material, the empty conveying vehicle train is moved to the turning mechanism side by the starting vehicle. The starting vehicle that has been towed and reached the crossing groove is caused to travel on the divided track piece of the second hoisting vehicle, which is kept at the intersection of the groove and the crossing groove, to receive the starting vehicle of the second hoisting vehicle. Stop on the bench. Thereafter, the connection of the starting vehicle is released from the rear end of the row of transport vehicles, and the second lifting vehicle is moved to the far side of the transverse groove.

Next, the first lift truck is moved below the rearmost transport truck, and the transport truck is lifted by raising the transport truck receiving stand, and the connection with the front transport truck is released. The lifting truck is moved to the end of the track to transfer the transport truck on the first lifting truck to the turning mechanism side, and is carried out from the turning mechanism to the ground side by the lifting equipment. Similarly, after the first lifting truck is again moved to the lower side of the rear transportation truck in the row of transportation trucks, the transportation truck is transported to the track end by the first lifting truck, sent out to the turning mechanism side, and moved up and down. The equipment is carried out to the ground side, and thereafter, this operation is repeated to carry out all the transport vehicles.

[0014] In such a transport vehicle operating device, the first and second hoisting vehicles are as described in claim 2;
By providing the tracks for running the first and second hoisting trucks in the groove and the transverse groove, respectively, the first and second hoisting trucks can be run accurately and smoothly, and laid in the groove. In the track, a portion intersecting with the transverse groove is cut off, and as described in claim 4, the track portion provided on the second hoisting carriage side is configured to match with the portion. With the heavy truck standing by at the back of the crossing groove, the first lifting truck can be moved on the above-mentioned track portion and moved to the track end.

Further, since the first and second hoisting trucks are provided with the receiving stand which is lifted and lowered by the jack on the bogie main body as described in the third and fourth aspects of the present invention, The transporting vehicle and the starting vehicle are reliably raised and lowered with respect to the connecting pins, and furthermore, the connecting pins projecting downward at the front and rear ends of the material transporting vehicle and the starting vehicle as described in claim 5 and the connection. By providing a connection hole in which a pin can be inserted, the connection work and the uncoupling work between the transport trolleys and the connection work and the decoupling work between the transport trolley and the starting vehicle are performed by elevating the receiving pedestal as described above. At the same time, it can be performed efficiently.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, a specific embodiment of the present invention will be described.
The excavation start end of the tunnel T under construction is open at the bottom front wall side, and a track 1 is laid on the bottom surface of the tunnel T to the lining site of the tunnel T, and a segment S is loaded on the track 1. The trolley 2 is configured to move the transport trolley 2, and a turning mechanism 3 is disposed on the bottom rear wall side of the shaft A, and the end of the track 1 is moved to a position near the turning mechanism 3. It is constructed such that it is laid on the bottom so that the end of the track faces the transfer trolley transfer unit on the turning mechanism 3.

Further, a lifting device 4 for loading and unloading the transporting trolley 2 from the ground B to the turning mechanism 3 through the shaft A is provided, and the rail 1 is located between the left and right rails of the track 1 from the track end. Excavating a groove 5 corresponding to the length of a row of carriages formed by connecting a plurality of carriages 2 forward;
In the groove 5, a first lift truck 6 for carrying one transport truck 2 thereon is provided so as to be able to travel. Further, a transverse groove 7 perpendicular to the groove 5 and deeper than the groove 5 is excavated and formed below the track end in the vicinity of the turning mechanism 3. A second lifting truck 8 for lifting the transport starting vehicle 11 of the transport truck 2 from above the track 1 and waiting inside one side of the transverse groove 7 is movably disposed in a direction intersecting the groove 5. At the intersection between the groove 5 and the transverse groove 7, the track 1 is divided at a portion corresponding to the length of the transverse groove 7 in the front-rear direction, and the track piece 1a intervening in the divided portion (FIG. 6)
Is laid on the second hoisting carriage 8 side.

As shown in FIG. 3, a connecting pin 12 projecting downward is provided at the center of the front and rear ends of the carrier 2.
And a connection hole 13 large enough to allow the connection pin 12 to be fitted therein. The connection hole 13 is also provided at the center of the starting vehicle 11 with a connection pin 14 projecting downward as shown in FIG. Hole 15
Are provided respectively.

The elevating equipment 4 causes the wire 42 wound around the winch 41 installed on the ground B to hang down in the shaft A,
The lower end of the wire 42 is wrapped around a sheave 45 rotatably supported by a gate-shaped frame 44 having its legs fixed to the four corners of the lifting platform 43, and the winch 41 is actuated. Is moved up and down between the ground and the turning mechanism 3. Further, the lower end of the rear wall of the shaft A reaches near the upper surface of the turning mechanism 3, and the upper end of the shaft
Vertical rails 46, 46 provided up to the upper end of 44 are fixed, and guide pieces 47 fixed to both ends of one side end surface of the elevating gantry 43 can be disengaged from the vertical rails 46, 46. Engage to raise and lower the lifting frame 43 along the vertical rails 46, 46,
Further, the guide piece 47 is detached from the lower ends of the vertical rails 46 when the lift frame 43 is received on the turntable 31 of the turn mechanism 3. Further, on the upper surface of the lift frame 43, a vehicle-mounted vehicle mounting track 48 is laid at the same interval as between the rails of the track 1 described above.

The turning mechanism 3 is a fixed base installed at the bottom of the shaft.
A swivel base 32 for receiving the elevating mount 43 is disposed on the upper base 31, and a rear end center portion of the swivel base 32 is pivotally attached to a fixed base 31 so as to be rotatable in a horizontal direction 33. A fixed guide rail 34, which is curved in an arc shape around the pivotal connection portion 33, is integrally provided on the front end side of the base 31 so that the swivel base 32 is swiveled along the fixed guide rail 34, and the swivel base 32 A pivoting jack 36 is connected between the bracket 35 protruding from the rear end and the rear end face of the fixed base 31 or the shaft A, and by operating this jack 36, the swivel table 32 is pivoted right and left. are doing. The height of the swivel 32 is
When the elevating platform 43 is mounted on the elevating platform 43, the on-vehicle mounting track 48 laid on the elevating platform 43 is formed at a height substantially on the same horizontal plane as the track 1.

The running track 9 of the first hoisting truck 6 and the running track 10 of the second hoisting truck 8 intersecting below the track 9 are respectively provided on the groove bottoms of the groove 5 and the transverse groove 7. The running track 9 of the first hoisting carriage 6 is cut off at a portion intersecting with the transverse groove 7 so that a track portion 9a corresponding to the length of the cutout portion is formed on the second hoisting carriage 8 side. Is laid.

As shown in FIGS. 3 and 4, the first hoisting carriage 6 travels on the track 9 laid in the groove 5.
A transport trolley support 62 is arranged via an elevating means 63 composed of a link mechanism combined in an X-shape on 61, and the trolley main body 61 and the cradle 62 are connected by a jack 64, and By operating the jack 64, the lifting / lowering means 63 is expanded and contracted in the vertical direction, and the receiving table 62 is raised and lowered. Front and rear wheels 2 of the transport vehicle 2 are provided on front and rear ends of the upper surface of the receiving table 62.
Receiving members 65, 65 for receiving the lower surface of the carrier 2 at a smaller interval than between a and 2b are fixed. Further, the truck main body 61 is provided with a drive motor 66, a hydraulic unit 67, a drive operation cable 68, and the like of the first lifting truck 6.

As shown in FIGS. 5 to 7, the second hoisting carriage 8 is mounted on one half of the carriage body 81 (on the back side of the transverse groove 7) running on the track 10 laid in the transverse groove 7. A starting vehicle cradle 82 is provided via lifting means 83 comprising a link mechanism having the same structure as the first lifting trolley 6, and the bogie main body 83 and the cradle 82 are connected by a jack 84. The operation of the jack 84 causes the elevating means 83 to expand and contract in the up and down direction, thereby moving the receiving table 82 up and down. At the front and rear ends of the upper surface of the receiving base 82, receiving members 8 for receiving the lower surface of the starting vehicle 11 with a smaller gap than the front and rear wheels 11a and 11b of the starting vehicle 11
5, 85 are fixed. Further, a traveling jack 88 having one end fixed to the groove bottom and the other end connected to the bogie main body 83 is provided between the rails of the track 10, and the second lifting bogie 8 is operated by the operation of the traveling jack 88. It is configured to run in the left-right direction crossing the groove 5. Reference numeral 86 denotes a hydraulic unit installed at an appropriate position in the transverse groove 7.

On the other half of the bogie main body 81, the above-mentioned track portion 9a for laying in the cutout portion of the track 9 laid in the above-mentioned groove 5 in the front-rear direction is laid and one half of the bogie main body 81 is provided. Supports 87, 87 are erected on the base with the receiving stand 82
Track pieces 1a that intervene in the divided portions of the track 1 are laid on the tracks 87 and 87. The elevating means 63 and 83 combine the two links in an X-shape to pivotally connect the intersections thereof, and attach one end of each of these links to the bogie main body and one end facing surface of the receiving stand, respectively. Although it has a structure in which it is pivotally attached and the other end is slidably supported on the other end side of the bogie main body and the receiving stand, lifting means such as a jack or a screw mechanism may be adopted.

Materials such as segments (hereinafter referred to as "segments") by the transporting vehicle operating device configured as described above.
The following describes a system in which the transport trolley 2 loaded with the vehicle is loaded into the tunnel T from the ground B and the empty transport trolley 2 is transported from the tunnel T to the ground B. After loading, the transport cart 2 is
As shown in (1), the vehicle travels on the track 16 laid on the ground B to the lifting equipment 4. At this time, the lifting platform 43 of the lifting equipment 4 has been raised to the upper end of the shaft A by the operation of the winch 41 using the vertical rail 46 fixed to the rear wall of the shaft A as a guide.
The carrier 2 is transferred from the track 12 to a track 48 on the lifting platform 43.

Thereafter, the lifting platform 43 is lowered along the vertical rail 46 to the bottom of the shaft A, and the rotating platform 3 of the rotating mechanism 3 is rotated below the lifting platform 43 by the operation of the jack 36. The lifting platform 43 is placed on the platform 32. When the lifting platform 43 rides on the swivel base 32, the guide piece 47 is separated from the lower end of the vertical rail 46, and then the jack 36 is operated to move the swivel base 32 from the tunnel T to the shaft A.
Is rotated to a position that matches the end of the track 1 laid down to the center of the bottom surface of the track 1, and the segment loading / transporting carriage 2 on the lifting platform 43 is moved to the end of the track 1. In addition, the movement of the carrier 2 from the elevating platform 43 to the track 1 side may be performed manually, or a pressing means such as a jack may be provided on the rear end of the elevating platform 43, and the pressing means may be used. May go.

When the movement of the carriage 2 from the lifting platform 43 to the track 1 is completed, the swivel 32 of the rotating mechanism 3 is swung rearward so that the guide piece 47 of the lifting platform 43 faces the lower end of the vertical rail 46. Activate the winch 41 of the lifting equipment 4
43 is raised to the ground B, and the next segment loading and transporting vehicle 2 is received on the track 48 on the upper surface thereof.

On the other hand, on the end side of the track 1, a first lifting truck 6 running in the groove 5 is on standby, and the segment loading machine which is moved from the elevating platform 43 to the end side of the track 1 The transport vehicle 2 is transferred onto the receiving platform 62 of the first lifting truck 6, and after the transfer, the receiving platform 62 of the first lifting truck 6 is slightly raised by the extension of the jack 64 to be received. The bottom surface of the carriage 2 is received by the material 65, and the carriage 2 is lifted from the track 1. In this state, the first lift truck 6 is caused to travel on the track 9 laid in the groove 5, and the groove 5 in the tunnel T is moved.
To the front end of the At this time, the second hoisting carriage 8 stands by at the back of the transverse groove 7 away from the intersection of the groove 5 and the transverse groove 7 with the starter car 11 received on the receiving stand 82. And the track piece 9a laid on the other half of the bogie main body 81 is interposed in the divided portion of the track 9, and therefore,
The first lifting truck 6 can travel forward on the track 9 via the track piece 9a.

When the first lifting carriage 6 reaches the front end of the groove 5, the jack 64 is contracted at that position to cause the receiving platform 62 to contract.
And the wheels 2a and 2b of the segment loading and transporting vehicle 2 on the receiving table 62 are placed on the track 1, and the receiving table 62 is separated downward from the bottom surface of the transporting vehicle 2. Thereafter, the first lift truck 6 is again moved to a position below the end of the rail 1 at the rear end of the groove 5 and is carried into the turning mechanism 3 from the ground B by the lifting equipment 4 in the same manner as described above. The next segment loading and transporting vehicle 2 is moved from the lifting platform 43 to the receiving platform 62 of the first hoisting vehicle 6.
After the transfer, the pedestal 62 is slightly raised and
62, the first carriage 6 is set in a state where the carriage 2 is received.
Is advanced to the rear end of the segment-loaded transporting vehicle 2 that has been transported earlier, and then the receiving platform 62 is lowered to project downward at the center of the front end of the transporting vehicle 2 on the receiving platform 62. Connecting hole 13 formed in the center of the rear end of the segment loading and transporting carriage 2 which has previously transported the connecting pin 12
And the two carriages 2 are connected to each other.

As described above, the reciprocating traveling process of the first lifting truck 6 in the groove 5, the loading process of the segment loading transport truck 2 from the ground by the lifting equipment 4, and the segment loading transport truck 2 are performed. The transfer process from the revolving platform 32 of the revolving mechanism 3 to the first lifting platform 6 is repeatedly performed so that the rearmost transport platform 2 reaches the front end side of the transverse groove 7 on the track 1 on the groove 5. In this way, a plurality of segment-loaded carriages 2 are connected to form a carriage train.

Next, the second lifting carriage 8 waiting in the transverse groove 7 is moved toward the groove 5 by the operation of the jack 88, and the divided track piece 1a laid on the column 87 is moved to the track 1 After stopping at the position where it was interposed between the cut portions, the receiving pin 82 was lowered to connect the connecting pin 14 projecting from the center of the front end of the starting vehicle 11 placed on the receiving table 82. The starting vehicle is inserted into the rear end connecting hole 13 of the rearmost segment loading and transporting vehicle 2.
11 is connected to the rear end of the carriage 2 and placed on the track 1.

Thereafter, the starting vehicle 11 is driven forward to transport the train of transport vehicles to the segment construction location in the tunnel T, and the segments S are sequentially loaded and unloaded from the transport vehicle 2, and then the empty train of transport vehicles is activated. The vehicle 11 is pulled to the shaft A side. When the starting vehicle 11 reaches the crossing groove 7, the starting vehicle 11 is stopped at the position where the rear wheel 11b has passed on the divided track piece 1a on the second hoisting vehicle 8 waiting at that position, and the second hoisting vehicle 8 The starting vehicle 11 is received by the receiving base 82 and the front and rear wheels 11a and 11b are lifted from the track 1 and the connecting pin 14 at the center of the front end is moved from the connecting hole 13 of the transporting vehicle 2 After being released, the second lifting truck 8 is moved to the rear side of the transverse groove 7 by the operation of the jack 88, and
The track piece 9a laid on the other half of the bogie main body 81 of the hoisting trolley 8 is made to be in a state of being interposed in the divided portion of the track 9 laid in the groove 5.

In this state, the first lifting carriage 6 is moved below the rearmost carriage 2, the receiving table 62 is raised, the carriage 2 is lifted, and the connecting pin 12 is connected to the front carriage 2. After being detached from the connection hole 13, the first lifting truck 6 is caused to travel on the track piece 9a of the track 9 to the end of the track 1 in a state where the carrier 2 is placed on the receiving table 62. After that, the transport vehicle 2 is transferred to the lifting platform 43 on the revolving table 32 of the revolving mechanism 3. Then, the swivel table 32 is swung rearward to move the elevating platform 43 along the vertical rails 46 of the elevating equipment 4, and while the guide pieces 47 are engaged with the vertical rails 46, the lifting and lowering is performed by the operation of the winch 41 of the elevating equipment 4. Raise the base 43, and
The transport carriage 2 is sent out from the lift platform 43 that has reached the above to the track 16 laid on the ground to prepare for the next segment loading.

On the other hand, the first lifting truck 6 moves to a position below the next trailing truck 2 and carries the truck 2 in the same manner as described above and transports it to the end of the track. After being sent to the elevating platform 43 on the swivel base 32 turned to a position facing the track end, it is carried out to the ground B side, and this operation is repeated to carry out all the transport vehicles 2 sequentially. Then, again, the segment loading / transporting vehicle 2 is sequentially moved from the ground B through the shaft A by the lifting / lowering facility 4 to the turning mechanism 3.
And the segment loading and transporting cart 2 is moved to the first position.
The starting vehicle 11 which is sequentially conveyed on the track 1 by the hoisting truck 6 and connected to each other, and this conveyer train is waiting in the transverse groove 7
Transport to the construction site of the tunnel T. The material to be loaded on the transport trolley 2 is not limited to the segment S, and may be other materials necessary for building the tunnel T.

[0035]

As described above, according to the transport vehicle operating device according to the first aspect of the present invention, the first material loading transport vehicle carried into the shaft from the ground stands by at the track end from the turning mechanism. Since the first lift truck is sent on the lift truck and the first lift truck travels along the groove provided below the track, the transport trucks are sequentially moved on the track by the first lift truck. It can be transported smoothly and efficiently to the position. Furthermore, since a transverse groove intersecting the above-mentioned groove is provided at the end of the track, and the second lift truck on which the starting vehicle is mounted is disposed in the transverse groove, the plurality of transport vehicles transported on the track are provided. The starting vehicle can be immediately connected to the rear end of the row, and the row of carriages can be carried to a predetermined location in the tunnel.

Further, since the divided track piece having a length obtained by dividing the track portion on the transverse groove is fixed to the second hoisting truck, the moving path of the second hoisting vehicle intersects the track. Nevertheless, the track can be continued to the turning mechanism by the divided track pieces. Therefore, after the material is conveyed into the tunnel, the empty carrier is securely pulled by the starting vehicle to the track end on the ship turning mechanism side. This makes it possible to efficiently carry out the work of unloading the carriage.

In such a transport vehicle operating device, in the invention according to claim 2, since the tracks for running the first and second lifting vehicles are provided in the groove and the transverse groove, respectively, The first and second hoisted trucks can be accurately and smoothly run, and a portion intersecting with the transverse groove in the track laid in the groove is cut off. Since the track portion provided on the side is configured to match, the first lift truck is caused to travel on the track portion with the second lift truck standing by at the back side of the transverse groove. It can be moved to the end of the orbit.

Further, the first and second hoisting trucks are provided with a receiving stand which is lifted and lowered by a jack on the bogie main body as described in the third and fourth aspects. The transporting vehicle and the starting vehicle are reliably raised and lowered with respect to the connecting pins, and furthermore, the connecting pins projecting downward at the front and rear ends of the material transporting vehicle and the starting vehicle as described in claim 5 and the connection. By providing a connection hole in which a pin can be inserted, the connection work and the uncoupling work between the transport trolleys and the connection work and the decoupling work between the transport trolley and the starting vehicle can be performed by raising and lowering the receiving stand as described above. At the same time, it can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a simplified side view of the entire transport trolley operating device,

FIG. 2 is a plan view thereof,

FIG. 3 is a side view of a first hoisting truck arranged in the groove;

FIG. 4 is a front view thereof,

FIG. 5 is a side view of a second hoisting truck disposed in the transverse groove,

FIG. 6 is a front view thereof,

FIG. 7 is a plan view thereof,

FIG. 8 is a simplified plan view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Track 1a Separated track piece 2 Carriage truck 3 Swivel mechanism 4 Elevating equipment 5 Groove 6 First hoisting carriage 7 Crossing groove 8 Second hoisting car 9 Track of first hoisting car 10 Track of second hoisting car 11 Starting vehicle 12, 14 Connection pin 13, 15 Connection hole

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-9-217600 (JP, A) JP-A-1-131800 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E21F 13/00-13/02 E21D 11/40

Claims (5)

(57) [Claims] 1. A transport vehicle operating device configured to transport a plurality of coupled transport vehicles on a track by a starting vehicle, the transport vehicle operating device corresponding to a length of the transport vehicle array along the track below the track. A first lifting truck for carrying and transporting the carriages one by one in the groove, and a transverse groove orthogonal to the groove at the end of the groove; And a split track piece having a length obtained by separating the track portion on the transverse groove from the second hoist truck, wherein the second hoist truck is mounted on the track and temporarily suspended from the track. A transport trolley operating device characterized in that the trolley is fixed. 2. The running track of the first hoisting truck is laid in the groove except for the portion of the transverse groove, while the running track of the first hoisting truck is provided in the transverse groove. The transporting vehicle operating device according to claim 1, wherein a traveling track of the second lifting vehicle is laid so as to be positioned also below. 3. The transport vehicle operating device according to claim 1, wherein the first hoisting truck is provided with a transport truck receiving stand that is raised and lowered by actuation of a jack on a truck body. . 4. The truck according to claim 2, wherein the second lift truck has a starter cradle which moves up and down by actuation of a jack on one half of the truck body and a track laid in the groove on the other half. 3. The transport vehicle operating device according to claim 1, wherein a track portion of the transverse groove portion is attached. 5. The material transporting trolley and the starting vehicle are provided with connecting pins protruding downward at the front and rear ends thereof and connecting holes into which the connecting pins can be fitted, respectively. The transport vehicle operating device according to claim 3 or 4.