JP2007331853A - Conveying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying device capable of preventing runaway of a vehicle by restricting traveling of the vehicle. <P>SOLUTION: According to the conveying device 1 of the present invention, a runaway prevention member 11 is pivoted to a projection position projected from a frame 2 by drive force given from a runaway prevention cylinder 13. Thereby, in conveying the vehicle 100 lifted up with a front wheel 100a, when an engine is started by rotation of a ground-contacted rear wheel and the vehicle 100 runs away, the runaway prevention member 11 positioned at the projection position collides with the runaway vehicle 100 to restrict traveling of the vehicle 100, thereby, runaway of the vehicle 100 can be prevented. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a transport device, and more particularly, to a transport device that can prevent vehicle runaway by restricting vehicle travel.

  In general, when X-ray inspection is performed on a vehicle on which a container is mounted, a transport device for transporting the vehicle is used. Such a transport device is configured to be able to run by itself while lifting the front wheels of the vehicle, and the vehicle and the container are passed through a shielding room where X-rays are irradiated, and the vehicle and the container are subjected to X-ray inspection.

For example, Japanese Patent Laid-Open No. 2003-287507 discloses a technique in which a passenger car fork (holding device) that can be moved up and down is disposed on an upper portion of a transport carriage (transport device). The transport cart is disposed so as to be self-propelled through a cart passage formed in the basement, and a passenger car fork lifts the front wheel of the vehicle on the ground. Then, when the transport carriage self-travels in the carriage passage with the front wheel of the vehicle raised, the vehicle and the container pass through the shielding chamber, and the X-ray inspection of the vehicle and the container is performed.
JP 2003-287507 A (paragraph [0013], FIG. 2 etc.)

  Here, when the transport carriage transports the vehicle, the vehicle driver is neutralized in order to prevent the so-called catching that the engine is started by the power transmitted to the engine by the rotation of the grounded rear wheel. Mandatory to position.

  However, if the driver gets off while the gear is in the drive, there is a problem that the engine starts due to the catch and the vehicle runs out of control. In addition, there was a problem of causing a collision accident due to vehicle runaway.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a transport device that can prevent the vehicle from running out of control by restricting the traveling of the vehicle.

  In order to achieve this object, a transport device according to claim 1 includes a frame, a travel drive device that travels the frame, and a holding device that is arranged to be movable up and down on the frame. The holding device is lifted while holding the front wheel of the vehicle, and the frame is driven by the travel drive device to convey the vehicle with the front wheel lifted. A runaway prevention member disposed on the front side in the approach direction and pivotally supported on the frame so as to be swingable between an overhanging position protruding from the frame and a storage position stored on the frame side; and the runaway A swing drive device that applies a driving force to the prevention member to swing the runaway prevention member between the extended position and the retracted position. Together to position the member in the protruding position to restrict the travel of the vehicle, and is configured so that the runaway prevention member is positioned at the retracted position to permit travel of the vehicle by the swing drive.

  According to a second aspect of the present invention, there is provided the conveying apparatus according to the first aspect, further comprising a receiving member that restricts the runaway prevention member located at the extended position from swinging forward in the approach direction of the vehicle. ing.

  The conveying device according to claim 3 is the conveying device according to claim 2, further comprising a buffer member made of an elastic material interposed between the runaway prevention member located at the projecting position and the cradle member. I have.

  According to a fourth aspect of the present invention, there is provided the conveying device according to the second or third aspect, wherein the pin portion protruding from one of the runaway prevention member or the swing driving device is engaged with the pin portion. And a pin groove formed on the other of the swing drive device. The swing drive device is configured as an extendable actuator, and the pin groove allows the runaway prevention member to be swung. The pin portion is configured to have a clearance to move relative to the dynamic drive device forward in the approach direction of the vehicle.

  The conveying device according to claim 5 is the conveying device according to any one of claims 1 to 4, wherein the arrangement position of the runaway prevention member in the vertical direction is at least 400 mm or more from the lowest point of the holding device, and It is set within a range of 600 mm or less.

  According to the transport device of claim 1, the runaway prevention member that is pivotally supported by the frame while being disposed on the front side in the vehicle approach direction relative to the holding device, and the swing drive device that swings the runaway prevention member. The runaway prevention member is swung to the overhanging position where it protrudes from the frame by the driving force applied from the swing driving device. As a result, when the vehicle with the front wheel lifted by the holding device is transported, the engine is started by the so-called catch that starts the engine by the rotation of the grounded rear wheel, and the vehicle is run out and is positioned at the extended position. There is an effect that the runaway prevention member collides with the runaway vehicle and restricts the running of the vehicle, thereby preventing the runaway of the vehicle.

  Further, since the runaway of the vehicle can be prevented, there is an effect that the runaway vehicle can be prevented from causing a collision accident.

  Further, the runaway prevention member is swung to the storage position stored on the frame side by the driving force applied from the swing driving device. Thereby, since the runaway prevention member allows the vehicle to travel without colliding with the vehicle, the vehicle after transportation can be transported as it is without moving backward, and the handling of the vehicle after transportation can be simplified. There is.

  According to the transport device of claim 2, in addition to the effect produced by the transport device of claim 1, the transport device includes a receiving member disposed on the front side in the vehicle approach direction of the runaway prevention member, and the receiving member is The runaway prevention member located at the overhang position restricts the vehicle from swinging forward in the direction of entry of the vehicle, so when the runaway vehicle collides with the runaway prevention member, the runaway prevention member enters the vehicle from the overhang position. It can prevent swinging toward the front side in the direction.

  As a result, there is an effect that it is possible to prevent the swing drive device from being damaged by pushing the swing drive device while the runaway prevention member swings from the protruding position toward the front side in the vehicle approach direction.

  In addition, since the runaway prevention member with the cradle member positioned in the overhang position is restricted from swinging forward in the vehicle entry direction, the load when the runaway vehicle collides with the runaway prevention member is shared by the cradle member. Accordingly, there is an effect that the driving force of the swing driving device necessary for the swing driving device to hold the runaway prevention member at the extended position can be reduced.

  According to the transport device of claim 3, in addition to the effect of the transport device of claim 2, comprising a buffer member interposed between the runaway prevention member located in the overhang position and the cradle member, Since the buffer member is made of an elastic material, when a vehicle that has runaway collides with the runaway prevention member, the buffer member elastically deforms and absorbs the load at the time of the collision, and the runaway prevention member and the cradle member are damaged. There is an effect that can be prevented.

  According to the transport device of claim 4, in addition to the effects exhibited by the transport device of claim 2 or 3, the pin portion drilled in one of the runaway prevention member or the swing drive device, and the runaway prevention member or The pin groove is formed on the other side of the swing drive device and engages with the pin portion, and the pin groove has a clearance for moving the runaway prevention member relative to the swing drive device in the forward direction of the vehicle. Therefore, when a runaway vehicle collides with the runaway prevention member, the runaway prevention member is controlled by the cradle driving device while being restricted from swinging forward in the vehicle entry direction by the receiving member. On the other hand, it is possible to prevent the load at the time of the collision from being applied to the swing drive device by relatively moving forward in the approach direction of the vehicle. As a result, it is possible to prevent the swing drive device from being damaged.

  According to the conveying apparatus of Claim 5, in addition to the effect which the conveying apparatus in any one of Claim 1 to 4 shows, the arrangement position of the runaway prevention member in the vertical direction is at least 400 mm from the lowest point of the holding apparatus. As described above, since it is set within the range of 600 mm or less, the runaway prevention member can collide with the bumper of the vehicle.

  That is, in a general vehicle, at least a part of a bumper as a protection device is disposed within a range of 400 mm or more and 600 mm or less from the lowest point of the holding device. As a result, the runaway prevention member collides with the bumper of the runaway vehicle by setting the arrangement position of the runaway prevention member in the substantially vertical direction within the range of at least 400 mm and 600 mm or less from the lowest point of the holding device. Therefore, there is an effect that the vehicle damage at the time of the collision can be suppressed.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings. FIG. 1 is a side view of a transport apparatus 1 according to the first embodiment of the present invention. 2A is a front view of the transfer device 1, and FIG. 2B is a top view of the transfer device 1. FIG.

  In FIGS. 1 and 2B, only a part of the vehicle 100 and the container 101 is shown. For ease of understanding, the fork cylinder 9 and the rotating members 93 and 94 are not shown in FIG. 1, and the telescopic member 7 and the arm cylinder 8 are not shown in FIG. In (b), illustration of the collision preventing member 24 is omitted. Moreover, in FIG.1 and FIG.2, the vehicle 100 and the container 101 are illustrated with the dashed-two dotted line.

  First, the overall configuration of the transport apparatus 1 will be described with reference to FIGS. 1 and 2. As shown in FIGS. 1 and 2, the transport device 1 is for self-propelling and transporting the vehicle 100 to a predetermined position with the front wheel 100 a of the vehicle 100 lifted, and is formed in a substantially gate shape. A frame 2, a wheel 3 that is pivotally supported by the frame 2, a pair of arm members 4 projecting from one end side in the running direction of the frame 2 (right side in FIGS. 1 and 2B), and a swinging motion to the arm member 4 A pair of fork members 5 that are pivotally supported, an auxiliary wheel 6 that rolls on a rail 151 that is laid on the ground, and a telescopic member 7 that is interposed between the auxiliary wheel 6 and the arm member 4. And an arm cylinder 8 for applying a driving force for expanding and contracting the telescopic member 7, a fork cylinder 9 for applying a driving force for swinging the fork member 5, and an arm member 4 for supporting the frame 2. Support device 10 and frame 2 A pair of runaway prevention members 11 that are pivotally supported, and a receiving member 12 disposed on the other end side in the running direction of the frame 2 of the runaway prevention member 11 (left side in FIGS. 1 and 2B) The runaway prevention cylinder 13 that swings by applying a driving force to the runaway prevention member 11 and the first and second detection positions of the runaway prevention member 11 that is swung by the drive force of the runaway prevention cylinder 13 are detected. Proximity sensors 14 and 15 are mainly provided.

  As shown in FIGS. 1 and 2, the frame 2 includes a pair of substantially gate-shaped gate portions 2a, an upper connecting portion 2b for connecting the upper portions of the pair of gate portions 2a to each other, and the center of the pair of gate portions 2a. The central connection part 2c which mutually connects, and the lower side connection part 2d which mutually connects the lower part of a pair of gate part 2a are comprised.

  The gate portion 2a is set to have a height dimension larger than the height dimension of the container 101 mounted on the vehicle 100, and the width dimension is set to be equal to or greater than the width dimension of the vehicle 100 and the container 101. The mounted vehicle 100 is configured to be able to pass through the gate 2a.

  A control panel 21 (to be described later) is provided at one end of the gate 2a in the direction orthogonal to the traveling direction of the frame 2 (the rear side in the vertical direction in FIG. 1, the left side in FIG. 2A and the upper side in FIG. 2B). An anti-collision member 24 and an overhang member 26, which will be described later, are overhang-fixed on one end side (right side in FIG. 1) in the running direction of the frame 2 of the gate 2a and on both end sides in the width direction.

  A travel motor 22 and a hydraulic unit 23, which will be described later, are placed on the upper surface of the lower connecting portion 2d, and a clamping member 25 for clamping the wheel 3 is fixed on the lower surface. Further, a runaway prevention member 11, a receiving member 12, a runaway prevention cylinder 13 and a first proximity sensor 14, which will be described later, are disposed on the side surfaces of the lower connecting portion 2d facing each other.

  The control panel 21 is for controlling the traveling motor 22 and the hydraulic unit 23 as shown in FIGS. 1 and 2, for example, the traveling speed of the frame 2 is set by controlling the traveling motor 22, The hydraulic unit 23 is controlled to extend and contract the arm, fork and runaway prevention cylinders 8, 9, and 13.

  As shown in FIG. 1, the travel motor 22 is for driving drive wheels 3c and 3d, which will be described later, and drives the drive roller 22a clockwise and counterclockwise (clockwise and counterclockwise in FIG. 1). Rotate. Then, due to the rotation of the driving roller 22a, the driving wheel 3d is rotated through the driving chain 22b wound around the driving roller 22a and the wheel side roller 3d1, and the frame 2 is caused to travel. Note that the drive wheel 3c and the drive wheel 3d are driven by the chain 22d so that the vehicle can travel even in the gap portion of the rail 151.

  The travel motor 22 is provided with a speed sensor 22c for detecting the rotation of the drive roller 22a, and the current position of the frame 2 is calculated from the rotational speed of the drive roller 22a detected by the speed sensor 22c. The

  As shown in FIG. 1, the hydraulic unit 23 is for expanding and contracting the arm, fork, and runaway prevention cylinders 8, 9, and 13, and for arm and fork via a hose (not shown). And runaway prevention cylinders 8, 9 and 13, respectively.

  Then, the hydraulic unit 23 changes the hydraulic pressure in the arm, fork and runaway prevention cylinders 8, 9, and 13 through the hose, respectively, so that the arm, fork and runaway prevention cylinders 8, 9, and 13 are changed. Extend and contract.

  As shown in FIG. 1, the collision prevention member 24 is fixed to the side surface at one end side (right side in FIG. 1) of the frame 2 of the gate portion 2 a and the both end sides in the width direction via two support members 24 a. In this case, the vehicle 100 is for collision prevention when the frame 2 is moved backward after the vehicle 100 is moved to the left or right with the limit being exceeded.

  As shown in FIGS. 1 and 2A, the clamping member 25 clamps the wheel 3 while being disposed on both side surfaces of the wheel 3, and rotatably supports the wheel 3.

  As shown in FIGS. 1 and 2 (b), the projecting member 26 is provided at both ends of the gate 2a in the direction perpendicular to the traveling direction of the frame 2 (the vertical direction in FIG. 1 and the vertical direction in FIG. 2 (b)). Each is overhanging and fixed, and supports the support device 10.

  As shown in FIGS. 1 and 2 (a), the wheels 3 roll on the rail 151, and four wheels 3 are arranged at the lower portion of each lower connecting portion 2d.

  Further, as described above, the drive wheels 3c and 3d disposed on one end side in the running direction of the frame 2 (right side in FIG. 1) and on both end sides in the width direction are rotationally driven by the running motor 22 as described above. The driven wheels 3 a and 3 b which are the wheels 3 other than the wheel 3 rotate following the traveling of the frame 2.

  Note that the distance between the driven wheels 3a and 3b arranged on the other end side in the running direction of the frame 2 (left side in FIG. 1) and the distance between the driving wheels 3c and 3d arranged on one end side in the running direction of the frame 2 are separated. The dimensions are set to be larger than gap dimensions d2 to d4 (see FIG. 3) of the rail 151 described later.

  Thereby, even when one wheel 3 is located in the gap of the rail 151, the other wheels 3 are located on the rail 151. Therefore, all the wheels 3 are dropped from the gap of the rail 151, and the impact caused by the dropout is caused. Can be prevented from being applied to the frame 2. Further, even when one drive wheel 3c, 3d is traveling through the gap of the rail 151, the other drive wheel 3c, 3d can travel.

  As shown in FIGS. 1 and 2 (b), the arm member 4 is a pair of substantially L-shaped members supported by the frame 2 via the support device 10, and the traveling direction of the frame 2 with respect to the gate 2a. It is arranged at both ends of the orthogonal direction (the vertical direction in FIG. 1 and the vertical direction in FIG. 2B), and projects toward the side facing the frame 2 (the right side in FIGS. 1 and 2B).

  Further, a substantially cylindrical tip member 41 is disposed on the tip end side of the arm member 4 in the overhang direction (right side in FIGS. 1 and 2B), and the tip member 41 is disposed on the tip end side of the tip member 41 in the overhang direction. A contact member 42 having a smaller diameter than 41 is fitted.

  The abutting member 42 expands and contracts along the traveling direction of the frame 2 (left and right direction in FIGS. 1 and 2B), and contracts by abutting with a stopper member 151a (see FIG. 3) described later. To absorb the impact at the time of contact.

  As shown in FIGS. 1 and 2B, the fork member 5 is composed of two first and second fork members 51 and 52 that are pivotally supported on the lower surface of the arm member 4. The first fork member 51 is disposed on the front end side in the projecting direction of the arm member 4 (right side in FIGS. 1 and 2B), and the second fork member 52 is on the frame 2 side (see FIG. 1). 1 and FIG. 2B (left side).

  The first and second fork members 51 and 52 swing by the expansion and contraction of a fork cylinder 9 described later, and sandwich the front wheel 100a of the vehicle 100. When the arm member 4 is lowered, a gap is formed between the first and second fork members 51 and 52 and the ground, and the first and second fork members 51 and 52 are expanded and contracted by the fork cylinder 9. It swings without touching the ground.

  As shown in FIG. 1, two auxiliary wheels 6 are provided for each arm member 4 and supported by two second link members 72, which will be described later, and rails 151 (FIG. 2A). (Refer to) It is configured to roll on top.

  As shown in FIG. 1, the extendable member 7 is configured to be extendable while being interposed between the arm member 4 and the auxiliary wheel 6, and is pivotally supported on the side surface of the arm member 4 with a predetermined distance therebetween. The two first link members 71, the two second link members 72 that pivotally support the auxiliary wheels 6 while being pivotally supported by the first link members 71, and the axes of the auxiliary wheels 6, respectively. A first connecting member 73 to be connected, a second connecting member 74 that pivotally supports an end of the first connecting member 73 on the frame 2 side (left side in FIG. 1), and a connecting portion between the first and second link members 71 and 72. A third connecting member 75 that connects each other is provided.

  The first link member 71 is disposed between the first and second fork members 51 and 52, and one end side (upper side in FIG. 1) is pivotally supported on the side surface of the arm member 4 and the other end side (lower side in FIG. 1). ) Pivotally supports the second link member 72.

  One end side (upper side in FIG. 1) of the second link member 72 is pivotally supported by the first link member 71, and the other end side (lower side in FIG. 1) pivotally supports the auxiliary wheel 6.

  The length dimensions of the first and second link members 71 and 72 are such that when the arm member 4 is lowered, the shape formed by the first and second link members 71 and 72 is the frame 2 side (left side in FIG. 1). It is set so as to have a substantially square shape with corners.

  The 1st connection member 73 is for connecting the axis | shafts of each auxiliary wheel 6, and the hole for pivotally supporting each auxiliary wheel 6 is drilled in the both ends. The distance between the holes is set to be larger than gap dimensions d2 to d4 (see FIG. 3) of the rail 151, which will be described later, and the distance between the auxiliary wheels 6 that are pivotally supported in the holes. The clearance dimension d2 to d4 of the rail 151 is larger.

  As a result, even when one auxiliary wheel 6 is positioned in the gap of the rail 151, the other auxiliary wheel 6 is positioned on the rail 151 to prevent the one auxiliary wheel 6 from falling out of the gap of the rail 151. it can. As a result, it is possible to prevent all the auxiliary wheels 6 from falling out of the gaps of the rails 151, the support position of the arm member 4 is lowered, and the front wheel 100a is grounded.

  The second connecting member 74 is for restricting the movement of each auxiliary wheel 6 in the traveling direction of the frame 2 (left and right direction in FIG. 1), and one end side (left side in FIG. 1) is pivotally supported on the side surface of the arm member 4. At the same time, the other end side (right side in FIG. 1) pivotally supports the frame 2 side (left side in FIG. 1) end portion of the first connecting member 73 to restrict the movement of the first connecting member 73.

  The 3rd connection member 75 is for connecting the connection parts of the 1st and 2nd link members 71 and 72, The 1st and 2nd link members 71 and 72 are pivotally supported in the both ends. A hole is drilled. The distance between the holes is set to be approximately the same as the distance between the mounting positions of the first link members 71 with respect to the arm member 4, and the inclination angle of the first link member 71 with respect to the ground is approximately equal. It becomes.

  As shown in FIG. 1, the arm cylinder 8 is disposed on the side surface of the arm member 4 where the first link member 71 is disposed, and expands and contracts in a substantially horizontal direction (left and right direction in FIG. 1). (Left side in FIG. 1) is pivotally supported on the side surface of the arm member 4, and the other end side (right side in FIG. 1) is pivotally supported on the frame 2 side (left side in FIG. 1) end portion of the third connecting member 75.

  As shown in FIG. 2 (b), two fork cylinders 9 are provided on the upper surface of the arm member 4, and are arranged on the front end side of the arm member 4 in the protruding direction (right side in FIG. 2 (b)). The first fork cylinder 91 and a second fork cylinder 92 disposed on the frame 2 side (left side in FIG. 2B) with respect to the first fork cylinder 91 are configured.

  The first fork cylinder 91 is pivotally supported by a fixing member 4a that is fixed to the upper surface of the arm member 4, and a first rotating member 93 described later is pivotally supported at the tip thereof. Then, when the first fork cylinder 91 expands and contracts, the first rotating member 93 is rotated.

  The first rotating member 93 is a substantially L-shaped member that pivotally supports the first fork member 51, and rotates by the expansion and contraction of the first fork cylinder 91 to swing the first fork member 51.

  The second fork cylinder 92 is pivotally supported on the upper surface of the arm member 4, and a second rotating member 94 described later is pivotally supported at the tip thereof. Then, the second rotating member 94 is rotated by the expansion and contraction of the second fork cylinder 92.

  The second rotating member 94 is a substantially L-shaped member that pivotally supports the second fork member 52, and rotates by the expansion and contraction of the second fork cylinder 92 to swing the second fork member 52.

  As shown in FIGS. 1 and 2 (b), the support device 10 is interposed between the frame 2 and the arm member 4, and moves while keeping the distance between the arm member 4 and the ground in parallel. There is a parallel link mechanism including upper and lower link members 10a and 10b pivotally supported by the overhang member 26 and the arm member 4.

  The upper link member 10a has one end side (the left side in FIG. 1 and FIG. 2B) pivotally supported by the overhanging member 26 by the upper first shaft support pin 10a1, and the other end side (the right side in FIG. 1 and FIG. 2B). ) Is pivotally supported on the arm member 4 by the upper second pivotal support pin 10a2. Similarly, one end side of the lower link member 10b is pivotally supported by the extension member 26 by the lower first pivot support pin 10b1, and the other end side is pivotally supported by the arm member 4 by the lower second pivot support pin 10b2. .

  The separation dimension between the upper first pivot support pin 10a1 and the upper second pivot support pin 10a2 is set to be approximately the same as the separation dimension between the lower first pivot support pin 10b1 and the lower second pivot support pin 10b2. ing. Further, the separation dimension between the upper first pivot support pin 10a1 and the lower first pivot support pin 10b1 is set substantially equal to the separation dimension between the upper second pivot support pin 10a2 and the lower second pivot support pin 10b2. ing.

  As a result, the shape formed by the upper first and upper second pivot pins 10a1 and 10a2 and the lower first and lower second pivot pins 10b1 and 10b2 is a substantially parallelogram. Thereby, the arm member 4 moves in parallel with the frame 2, that is, moves in parallel with the ground.

  Here, with reference to FIG.1 and FIG.2, operation | movement of the arm member 4 and the fork member 5 is demonstrated.

  In a state where the first fork cylinder 91 is extended, the first fork member 51 is disposed below the tip member 41 while the tip of the first fork member 51 projects toward one end side in the running direction of the frame 2 (right side in FIG. 2B). ing.

  On the other hand, in the state where the second fork cylinder 92 is extended, the second fork member 52 protrudes toward the other end side in the running direction of the frame 2 (the left side in FIG. 2B) and below the arm member 4. Is arranged.

  As shown in FIG. 2 (b), the front wheel 100a of the vehicle 100 is disposed at the approximate center between the first and second fork members 51, 52, and the first and second fork cylinders 91, 92 are contracted. The

  That is, when the first fork cylinder 91 contracts in the arm member 4 disposed on one end side (the upper side in FIG. 2B) of the frame 2, the first rotating member 93 is rotated clockwise (FIG. 2 ( b) Rotate approximately 90 ° clockwise. Then, the rotation of the first rotating member 93 causes the first fork member 51 to rotate about 90 ° in the clockwise direction, and the fork member 51 is disposed below the front wheel 100a (in FIG. 2B, the depth in the direction perpendicular to the paper surface). .

  Similarly, when the first fork cylinder 91 contracts in the arm member 4 disposed on the other end side (the lower side in FIG. 2B) of the frame 2, the first rotating member 93 and the first fork The member 51 rotates about 90 ° counterclockwise (counterclockwise in FIG. 2B), and the first fork member 51 is disposed below the front wheel 100a.

  On the other hand, when the second fork cylinder 92 contracts in the arm member 4 disposed on one end side of the frame 2, the second rotating member 94 rotates about 90 ° counterclockwise. Then, the rotation of the second rotating member 94 causes the second fork member 52 to rotate about 90 ° counterclockwise, and the second fork member 52 is disposed below the front wheel 100a.

  Similarly, in the arm member 4 disposed on the other end side of the frame 2, when the second fork cylinder 92 contracts, the second rotating member 94 and the second fork member 52 are approximately 90 ° clockwise. The second fork member 52 is disposed below the front wheel.

  As described above, the first and second fork cylinders 91 and 92 are contracted so that the first and second fork members 51 and 52 are respectively disposed below the front wheel 100a. 52 hold the front wheel 100a.

  Next, as shown in FIG. 1, the arm cylinder 8 extends toward one end side (right side in FIG. 1) of the frame 2 and is arranged on the other end side (left side in FIG. 1) of the frame 2. The connecting portions of the first and second link members 71 and 72 and the connecting member 8 are extruded. Thereby, each 1st and 2nd link member 71,72 is extended in the substantially perpendicular direction (FIG. 1 up-down direction), and raises the arm member 4. As shown in FIG.

  As described above, the vehicle 100 is lifted by raising the arm member 4 in a state where the front wheel 100a is sandwiched between the first and second fork members 51 and 52.

  The expansion member 7 is configured to raise the arm member 4 while supporting the arm member 4 with respect to the ground. Therefore, when the load of the vehicle 100 is applied to the arm member 4, the expansion member 7 is The arm member 4 is supported with respect to the ground, and the other end side in the traveling direction of the frame 2 (left side in FIG. 1) can be prevented from floating.

  Moreover, since the dead weight for preventing the frame 2 from being lifted can be eliminated, the overall weight can be reduced, and the cost can be reduced.

  Here, the configuration of the transfer device 1 will be described.

  As shown in FIG. 2, the runaway prevention member 11 is a pair of rod-like members that are pivotally supported by pivotal support members 11a projecting from the opposite side surfaces of the respective lower connecting portions 2d. 13 is configured to be swingable by expansion and contraction.

  That is, in the state where the runaway prevention cylinder 13 is contracted, the runaway prevention member 11 is located at the overhanging position where the ends of the runaway prevention member 11 project to the sides facing each other. In the state where the runaway prevention cylinder 13 is extended, the runaway prevention member 11 is stretched at one end side in the running direction of the frame 2 (FIG. 2A, the rear side in the vertical direction in FIG. 2 and the right side in FIG. 2B). It is located in the storage position.

  It should be noted that the “extension position” described in claims 1 to 3 is a position where the tip of the runaway prevention member 11 projects to the side facing each other, and at least a part of the runaway prevention member 11 overlaps the passage of the vehicle 100. Is applicable.

  Further, the “storage position” described in claim 1 corresponds to a position where the tip of the runaway prevention member 11 is located at one end side in the running direction of the frame 2 and the runaway prevention member 11 and the passage of the vehicle 100 do not overlap.

  In addition, the longitudinal dimension of the runaway prevention member 11 (FIG. 2A, the horizontal dimension and FIG. 2B, the vertical dimension) is such that the separation dimension d1 between the runaway prevention members 11 located at the overhang position is the vehicle 100. It is set to be smaller than the vehicle width dimension.

  Further, the height dimension h1 of the runaway prevention member 11 in the substantially vertical direction (the vertical direction in FIG. 2A and the vertical direction in FIG. 2B) is 570 mm from the bottom surface of the fork member 5 in a state where the arm member 4 is lowered. Is set to

  The “lowermost point of the holding device” described in claim 5 corresponds to the bottom surface of the fork member 5 in a state where the arm member 4 is lowered.

  Here, with reference to FIG. 4, the runaway prevention member 11, the cradle member 12, the runaway prevention cylinder 13, and the first and second proximity sensors 14 and 15 will be described.

  As shown in FIG. 4, the engagement member 11 b projects and is fixed to the side surface of one end side (the lower side in FIG. 4A and the left side in FIG. 4B) of the runaway prevention member 11. The abutting plate member 11c is projected and fixed downward.

  The engaging member 11b is a connecting portion with the runaway prevention cylinder 13, and a pin groove 11b1 for engaging with a pin portion 13b described later is formed so as to penetrate in a substantially vertical direction (perpendicular direction in FIG. 4).

  The pin groove 11b1 is composed of a long hole extending along the protruding direction of the engaging member 11b (the vertical direction in FIG. 4 (a) and the horizontal direction in FIG. 4 (b)). 4A and 4B are set larger than the outer diameter of the pin portion 13b.

  The contact plate member 11c is fixed to the bottom surface of the runaway prevention member 11, and the overhang dimension is set to be larger than the distance between the runaway prevention member 11 and the receiving member 12 in the substantially vertical direction.

  Further, in the state in which the runaway prevention member 11 is located at the overhanging position, the contact plate member 11c is set so that the distance from the lower connecting member 2d is substantially equal to the overhanging dimension of the receiving member 12, and a buffer member described later 12a can be contacted.

  As shown in FIG. 4, the cradle member 12 is a plate-like member disposed below the runaway prevention member 11, and is fixed to project from the mutually opposing side surfaces of the lower coupling portions 2 d. In addition, a buffer member 12a is disposed on one side surface (right side in FIG. 4) of the cradle member 12 in the traveling direction of the frame 2.

  The buffer member 12a is an elastic member disposed on the front end side (lower side in FIG. 4) of the cradle member 12, and abuts against the contact plate member 11c in a state where the runaway prevention member 11 is positioned at the overhang position. It is configured to be possible.

  As shown in FIG. 4, the runaway prevention cylinder 13 is a telescopic member that is pivotally supported by a pivotal support member 13 a that protrudes from the mutually opposing side surfaces of each lower connecting portion 2 d, and the traveling direction of the frame 2 (FIG. 4). It is comprised so that expansion-contraction is possible along the left-right direction. Further, at the tip of the runaway prevention cylinder 13, a pin portion 13 b projects from the upper and lower surfaces.

  The pin portion 13b is a substantially cylindrical member that engages with the pin groove 11b1, and is configured to be slidable along the pin groove 11b1 while engaging with the pin groove 11b1.

  As for the 1st proximity sensor 14, the arrangement position in a substantially vertical direction is set to the height dimension substantially equivalent to the height dimension of the runaway prevention member 11. Furthermore, the arrangement position of the frame 2 in the traveling direction is set to a position corresponding to the tip of the runaway prevention member 11 located at the storage position, and the runaway prevention member 11 located at the storage position can be detected.

  The second proximity sensor 15 is a device for receiving the light emitted from the light projecting unit by the light receiving unit, and detecting the presence or absence of the runaway prevention member 11 from the detected light amount change, and corresponds to the contact plate member 11c. It is arranged on the upper surface of the cradle member 12 while being arranged at the position, and is configured to be able to detect the runaway prevention member 11 located at the extended position.

  Next, the X-ray inspection apparatus 150 will be described with reference to FIG. FIG. 3A is a top view schematically showing an X-ray inspection apparatus 150 in which the vehicle 100 before X-ray inspection is arranged, and FIG. 3B is a diagram in which the vehicle 100 under X-ray inspection is arranged. 3 is a top view schematically showing the X-ray inspection apparatus 150, and FIG. 3C is a top view schematically showing the X-ray inspection apparatus 150 on which the vehicle 100 after the X-ray inspection is arranged. In FIG. 3, the vehicle 100 and the container 101 are illustrated by a two-dot chain line, and an X-ray irradiation apparatus disposed on the ceiling of the shielding room 160 is omitted for easy understanding. .

  As shown in FIG. 3A, the X-ray inspection apparatus 150 is an apparatus that performs an X-ray inspection of the vehicle 100 and the container 101. The X-ray inspection apparatus 150 self-travels on a rail 151 laid on the ground and the rail 151. No. 1 machine 1A (conveyance apparatus 1) and No. 2 machine 1B that convey the vehicle 100, an X-ray irradiation apparatus 161 that irradiates the vehicle 100 conveyed to the No. 2 machine 1B with X-rays, and the X-ray irradiation apparatus 161 are arranged. The shield chamber 160 is provided and partitioned, and a traveling current collector 164 provided in parallel with the rail 151 is mainly provided.

  The first machine 1A is the same apparatus as the above-described transfer apparatus 1, and the second machine 1B is a runaway prevention member 11, a cradle member 12, a runaway prevention cylinder 13, first and second proximity switches 14, 15 Is a device in which is not arranged.

  The rail 151 is a conveyance path laid on the ground so that the first car 1A and the second car 1B run on its own, and the height dimension of the abutting member 42 is provided at both ends thereof (FIG. 3 (a) right and left sides). Stopper members 151a and 151b having a larger height dimension are erected from the ground.

  The stopper member 151a abuts against the abutting member 42 of the first car 1A to restrict the running of the first car 1A, and the stopper member 151b is the other end side in the running direction of the frame 2 of the second car 1B (FIG. 3A). The left side) and the traveling of the second machine 1B is restricted.

  In addition, gaps having gap dimensions d2 and d4 are formed on rails 151 at positions corresponding to entry doors 162 and exit doors 163, which will be described later. It is configured to be slidable in a direction (vertical direction in FIG. 3A) orthogonal to the traveling direction.

  Further, a gap having a gap dimension d3 is formed on the rail 151 on an extension line of the X-ray irradiation direction (downward direction in FIG. 3A) of the X-ray irradiation apparatus 161 described later, and the rail 151 is projected at the time of X-ray inspection. Is prevented.

  The first machine 1A is configured such that a current collector (not shown) disposed on the side surface of the frame 2 and a travel current collector 164 can be engaged with each other, and is supplied from the travel current collector 164. It reciprocates between the first position and the second position by electricity.

  The first position corresponds to a position where the abutting member 42 of the first car 1A and the stopper member 151a come into contact with each other, and the second position refers to the approximate center of the frame 2 of the first car 1A with X-ray irradiation. The position arranged on the extended line in the X-ray irradiation direction of the apparatus 161 corresponds.

  Similar to Unit 1 1A, Unit 2 1B is configured such that a current collector (not shown) disposed on the side surface of frame 2 and travel current collector 164 can be engaged. The electricity supplied from the electric device 164 reciprocates between the second position and the third position.

  The third position corresponds to a position where the other end side in the running direction of the frame 2 of the No. 2 machine 1B contacts the stopper member 151b.

  The X-ray irradiation device 161 is a device that irradiates X-rays while being arranged on the side wall and ceiling of the shielding room 160, and is substantially horizontal (FIG. 3 (a) vertical direction) and substantially vertical (FIG. 3 (a) paper surface. X-rays are irradiated in the vertical direction. An image processing apparatus (not shown) performs image processing with the irradiated X-rays.

  The shielding room 160 is disposed near the center of the conveyance path of the vehicle 100 and can be opened and closed on the entry side (right side in FIG. 3 (a)) and the exit side (left side in FIG. 3 (a)). The entrance door 162 and the exit door 163 are respectively disposed, and the entrance door 162 and the exit door 163 are closed to form a partition.

  In the shielding room 160, an X-ray irradiation device 161, an X-ray detector, and the like are disposed, and the entrance door 162 and the exit door 163 are closed during X-ray irradiation, so that X-rays leak out. To prevent it.

  The traveling current collector 164 supplies electricity to the first car 1A and the second car 1B, and enables signal conversion between the transport device 1 and a ground control panel (not shown). A gap having gap dimensions d2 and d4 is formed at a position corresponding to the exit door 163, and the entrance door 162 and the exit door 163 are configured to be slidable in a direction orthogonal to the traveling direction of the first machine 1A and the second machine 1B. . Further, a gap having a gap dimension d3 is formed on the extended line in the X-ray irradiation direction of the X-ray irradiation apparatus 161, and the traveling current collector 164 is prevented from being projected during the X-ray inspection.

  Note that a plurality of current collectors that are engaged with the travel current collector 164 to secure electricity are disposed on the side surface of the frame 2, and the travel direction of the frame 2 of each current collector (FIG. 3 (a) left-right direction). Is set larger than the gap dimensions d2 to d4. Thereby, even when one current collector is located in the gap between the traveling current collectors 164, the other current collectors can be engaged with the traveling current collector 164 to ensure electricity.

  In the X-ray inspection apparatus 150 configured as described above, as shown in FIG. 3A, in the state before the vehicle 100 to be subjected to the X-ray inspection is carried in, the first machine 1A is at the first position. Waiting, the second machine 1B is waiting at the third position.

  The first machine 1A swings the fork member 5 to clamp the front wheel 100a, lifts the arm member 4 with the front wheel 100a held, and lifts the vehicle 100. Then, the first car 1A travels from the first position to the second position with the vehicle 100 lifted, and transports the vehicle 100 to the second position.

  The first car 1A is allowed to travel from the first position to the second position only when the second proximity sensor 15 (see FIG. 4) detects the runaway prevention member 11 located at the extended position. Thus, the vehicle 100 is transported in a state where the runaway prevention member 11 is located at the retracted position, and it is possible to prevent the runaway of the vehicle 100 from being prevented.

  Next, as shown in FIG. 3B, the first car 1A that has transported the vehicle 100 to the second position lowers the arm member 4 and then swings the fork member 5 to make the vehicle 100 an X-ray irradiation device. 161 and the entrance door 162.

  The runaway prevention member 11 located at the extended position at the first position is directed toward the storage position when the deceleration of the first unit 1A from the ground control panel is detected during the outward path from the first position to the second position. Is swung.

  That is, it can be determined that the vehicle 100 transported at least for a certain distance until the first car 1A decelerates has its gear positioned in the drive, so that the engine is started by the rotation of the grounded rear wheel and the vehicle does not run away. As a result, it is unnecessary to place the runaway prevention member 11 in the overhanging position to prevent the vehicle 100 from running away, and the runaway prevention member 11 can be stored in the storage position before the first machine 1A arrives at the second position. it can.

  As a result, compared with the case where the runaway prevention member 11 is swung toward the storage position after the vehicle 100 is lowered at the second position, the time spent for storing the runaway prevention member 11 is omitted, and the conveyance is performed accordingly. Efficiency can be improved.

  Next, the first car 1A with the vehicle 100 lowered travels from the second position to the first position. The first car 1A is allowed to travel from the second position to the first position only when the first proximity sensor 14 (see FIG. 4) detects the runaway prevention member 11 located at the storage position.

  As a result, when the first unit 1A moves from the second position to the first position, the vehicle 100 is reliably prevented from colliding with the runaway prevention member 11 located at the extended position and the vehicle 100 is damaged. Is surely prevented.

  Further, the runaway prevention member 11 located at the retracted position at the second position is directed toward the overhang position when the deceleration of the first unit 1A is detected from the ground control panel during the return path from the second position to the first position. It is swung.

  Thereby, compared with the case where the runaway prevention member is swung toward the projecting position after the vehicle 100 is lifted at the first position, the time spent for projecting the runaway prevention member 11 is omitted, and the conveyance is performed accordingly. Efficiency can be improved.

  On the other hand, the No. 2 machine 1B waiting at the third position travels toward the second position. The entrance door 162 and the exit door 163 are closed after the No. 2 machine 1B enters the shielding room 160, and the inside of the shielding room 160 is closed.

  The second machine 1B located at the second position swings the fork member 5 to sandwich the front wheel 100a, and lifts the vehicle 100 by raising the arm member while the front wheel 100a is sandwiched. The second machine 1B travels at a constant speed from the second position to the third position with the vehicle 100 lifted, and the X-rays irradiated from the X-ray irradiation device 161 are equally spaced from the vehicle 100 and the container 101. Irradiate.

  As described above, the No. 2 machine 1B is not provided with the runaway prevention member 11, the receiving member 12, the runaway prevention cylinder 13, and the first and second proximity switches 14 and 15. This is because the second car 1B transports at least the vehicle 100 transported by the first car 1A to the second position, and as a result, the vehicle 100 that does not run away when the first car 1A transports the gear is located in the neutral position. This is because there is no risk of runaway when the second machine 1B is transported.

  Next, as shown in FIG. 3 (c), after the vehicle 100 and the container 101 are irradiated with X-rays, the entrance door 162 and the exit door 163 are opened, and the second machine 1B located in the shielding room 160 is Drive towards the third position. Then, after lowering the arm member 4, the fork member 5 is swung to lower the vehicle 100, and the X-ray inspection of the vehicle 100 and the container 101 is completed.

  On the other hand, the first car 1A that stands by at the first position stands by with the front wheel 100a of the vehicle 100 that performs X-ray inspection next lifted. And the inspection process mentioned above is repeated.

  Next, the swinging operation of the runaway prevention member 11 will be described with reference to FIG. FIG. 4A is a top view of the runaway prevention member 11 located at the retracted position, and FIG. 4B is a top view of the runaway prevention member 11 located at the extended position. 4B is a partially enlarged view of the runaway prevention member 11, the cradle member 12, and the runaway prevention cylinder 13 as viewed in the direction of the arrow IVb in FIG. 4B. is there. In FIG. 4, only a part of the lower connecting portion 2d is shown.

  First, the storing operation of the runaway prevention member 11 will be described with reference to FIG. As shown in FIG. 4 (a), the runaway prevention member 11 located at the overhang position has its wall surface of the pin groove 11b1 pushed out to the pin portion 13b by extension of the runaway prevention cylinder 13. Then, the runaway prevention member 11 pushed out by the pin portion 13b is swung in the counterclockwise direction (the counterclockwise direction in FIG. 4A) and stored in the storage position.

  As described above, the runaway prevention member 11 is stored in the retracted position, so that the runaway prevention member 11 allows the vehicle 100 to travel without colliding with the vehicle 100 (see FIG. 3). Since the first car 1A (see FIG. 3) that is positioned can travel from the second position toward the first position without moving the vehicle 100 placed at the second position, the vehicle 100 is moved. Compared with the case, handling of the vehicle 100 can be simplified.

  The runaway prevention cylinder 13 is configured to store the runaway prevention member 11 in the retracted position at the maximum extension, and the runaway prevention member 11 is moved from the retracted position to the lower connecting portion 2d side (FIG. 4A). It is prevented from colliding with the first proximity switch 14 by swinging upward).

  Next, the overhanging operation of the runaway prevention member 11 will be described with reference to FIG. As shown in FIG. 4B, the runaway prevention member 11 located at the retracted position has its pin groove 11b1 pulled by the pin portion 13b by the contraction of the runaway prevention cylinder 13. Then, the runaway prevention member 11 pulled by the pin portion 13b is swung in the clockwise direction (clockwise direction in FIG. 4 (b)) and is positioned at the overhang position.

  Here, as described above, the longitudinal dimension of the runaway prevention member 11 is such that the separation dimension d1 (see FIG. 2) between the runaway prevention members 11 located at the overhang position is larger than the width dimension of the vehicle 100 (see FIG. 2). Therefore, the runaway prevention member 11 located at the overhanging position overlaps the passage route of the vehicle 100.

  That is, when the vehicle 100 in which the front wheel 100a is lifted is transported, when the engine is started by the rotation of the grounded rear wheel and the vehicle 100 runs out of control, the vehicle 100 in which the runaway prevention member 11 located at the overhanging position runs away. The vehicle 100 can be restricted from traveling and the vehicle 100 can be prevented from running away.

  Furthermore, since the runaway of the vehicle 100 can be prevented, an accident in which the runaway vehicle 100 collides with the X-ray inspection apparatus 150 (see FIG. 3) or the second machine 1B (see FIG. 3) can be prevented.

  Further, as shown in FIG. 4B, the cradle member 12 is disposed on the other end side in the running direction of the frame 2 of the runaway prevention member 11 (left side in FIG. 4B), and the runaway prevention member 11 protrudes. It swings clockwise from the position. Thereby, when the vehicle 100 that has runaway collides with the runaway prevention member 11, the runaway prevention member 11 can be prevented from swinging in the clockwise direction and being loaded with the runaway cylinder 13. As a result, it is possible to prevent the runaway cylinder 13 from being damaged.

  Further, since the cradle member 12 restricts the rocking motion of the runaway prevention member 11 in the clockwise direction, the load when the runaway vehicle 100 collides is shared by the cradle member 12, and the runaway prevention cylinder correspondingly. 13 can reduce the driving force required to hold the runaway prevention member 11 in the overhang position.

  Further, as shown in FIG. 4B, a buffer member 12a is disposed on the side surface of the cradle member 12 at one end side (right side in FIG. 4B) of the frame 2 in the running direction, and the buffer member 12a prevents runaway. It is interposed between the member 11 and the cradle member 12. Thereby, when the vehicle 100 that has runaway collides with the runaway prevention member 11, the buffer member 12a can be elastically deformed to absorb the impact at the time of the collision and prevent the runaway prevention member 11 and the cradle member 12 from being damaged. .

  Further, as shown in FIG. 4B, the pin groove 11b1 is formed of a long hole along the running direction of the frame 2 (the left-right direction in FIG. 4B), and the frame 2 of the pin portion 13b and the pin groove 11b1. A gap is formed between the wall surface at one end in the traveling direction.

  As a result, when the vehicle 100 that has runaway collides with the runaway prevention member 11, the runaway prevention member 11 is restricted from swinging in the clockwise direction by the receiving member 12, and the frame 2 travels against the runaway prevention member 11. It moves relative to the other end side in the direction (left side in FIG. 4B). As a result, it is possible to prevent the runaway prevention cylinder 13 from being subjected to a load at the time of collision and prevent the runaway prevention cylinder 13 from being damaged.

  Further, as described above, the height dimension h1 of the runaway prevention member 11 is set to 570 mm from the bottom surface of the fork member 5 in a state where the arm member 4 is lowered (see FIG. 2A).

  Here, in a general vehicle, particularly a truck, at least a part of a bumper as a protection device is set to a height within a range of 400 mm or more and 600 mm or less. As a result, the runaway prevention member 11 collides with the bumper 100b (see FIG. 2A) of the vehicle 100 by setting the height dimension h1 of the runaway prevention member 11 to 570 mm. Can be suppressed.

  The runaway prevention member 11 in the present embodiment has a height dimension h1 set to 570 mm, but is not necessarily limited to this, and can be variously changed within a range of 400 mm or more and 600 mm or less. Is possible.

  The first and second proximity sensors 14 and 15 are configured to detect that the runaway prevention member 11 is located at the overhang position or the retracted position from the swinging operation of the runaway prevention member 11.

  Here, when detecting that the runaway prevention member 11 is located at the overhang position or the retracted position from the expansion / contraction operation of the runaway prevention cylinder 13, a connection failure between the runaway prevention member 11 and the runaway prevention cylinder 13 occurs. In the case where the runaway prevention member 11 cannot be detected, the frame 2 travels with the runaway prevention member 11 positioned at the overhanging position, and the runaway prevention member 11 and the vehicle 100 collide with each other. May be damaged, or the vehicle 100 may be transported in a state where the runaway prevention member 11 is located at the retracted position and the vehicle 100 may not be prevented from running away.

  On the other hand, it is possible to reliably prevent the vehicle 100 from being damaged or runaway by detecting that the runaway prevention member 11 is located at the overhang position or the retracted position from the swinging operation of the runaway prevention member 11.

  The present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed.

  For example, in the present embodiment, the runaway prevention member 11, the cradle member 12 and the runaway prevention cylinder 13 are disposed on the other end side in the running direction of the frame 2, but the present invention is not necessarily limited thereto. You may arrange | position on the one running direction side of 2. As a result, the distance between the runaway prevention member 11, the cradle member 12 and the runaway prevention cylinder 13 and the vehicle 100 lifted by the arm member 4 is reduced, and the vehicle 100 in which the runaway prevention member 11 has runaway is immediately blocked. can do.

  Further, in the present embodiment, during the forward path from the first position to the second position or during the return path from the second position to the first position, the runaway prevention member 11 detects the deceleration of the first machine 1A by the deceleration sensor 22c. However, for example, a sensor is provided at a predetermined position on the transport path so that the runaway prevention member 11 is swung after the sensor detects the passage of the first machine 1A. You may comprise. Moreover, you may comprise so that the runaway prevention member 11 may be rocked | swiveled after predetermined time passes since the 1st machine 1A started from the 1st position or the 2nd position.

  Further, in the present embodiment, the first car 1A is allowed to travel from the first position to the second position only when the second proximity sensor 15 detects that the runaway prevention member 11 is located at the overhang position. In addition, traveling from the second position to the first position is allowed only when the first proximity sensor 14 detects that the runaway prevention member 11 is located at the retracted position.

  However, the first car 1A moves from the first position to the second position only when the second proximity sensor 15 detects the runaway prevention member 11 and the first proximity sensor 14 does not detect the runaway prevention member 11. The first position sensor 14 detects the runaway prevention member 11 and the second proximity sensor 15 does not detect the runaway prevention member 11. You may comprise so that driving | running | working to is permitted.

  As a result, when the runaway prevention member 11 is located between the extended position and the retracted position, the first and second proximity sensors 14 and 15 detect the runaway prevention member 11 and allow the first unit 1A to travel. Can be prevented.

It is a side view of the conveyance apparatus in 1st Embodiment of this invention. (A) is a front view of a conveying apparatus, (b) is a top view of a conveying apparatus. (A) is a top view which shows typically the X-ray inspection apparatus by which the vehicle before X-ray inspection is arrange | positioned, (b) is a schematic X-ray inspection apparatus by which the vehicle under X-ray inspection is arrange | positioned. (C) is a top view schematically showing an X-ray inspection apparatus in which a vehicle after X-ray inspection is arranged. (A) is a top view of the runaway prevention member located in the retracted position, and (b) is a top view of the runaway prevention member located in the overhang position.

Explanation of symbols

1 Conveyor 1A Unit 1 (Conveyor)
2 Frame 4 Arm member (part of holding device)
5 Fork member (part of holding device)
11 Runaway prevention member 11b1 Pin groove 12 Receiving member 12a Buffer member 13 Runaway prevention cylinder (oscillation drive device)
13b Pin 22 Traveling motor (traveling drive device)
100 vehicle 100a front wheel

Claims (5)

A frame, a travel drive device that travels the frame, and a holding device that is disposed on the frame so as to be movable up and down. The holding device lifts the holding device while holding a front wheel of the vehicle, and the travel drive. In a transport device that travels the frame by a device and transports the vehicle in a state where the front wheel is lifted,
It is arranged on the front side of the vehicle in the approach direction with respect to the holding device, and is pivotally supported by the frame so as to be swingable between an overhanging position protruding from the frame and a storage position stored on the frame side. A runaway prevention member,
A swing drive device that applies a driving force to the runaway prevention member to swing the runaway prevention member between the extended position and the retracted position;
The rocking drive device places the runaway prevention member in the overhanging position to restrict the travel of the vehicle, and the rocking drive device places the runaway prevention member in the retracted position to allow the vehicle to travel. It is comprised so that it may carry out, The conveying apparatus characterized by the above-mentioned.   The conveying apparatus according to claim 1, further comprising a receiving member that restricts the runaway prevention member positioned at the extended position from swinging forward in the approach direction of the vehicle.   The conveying apparatus according to claim 2, further comprising a buffer member formed of an elastic material interposed between the runaway prevention member located at the projecting position and the cradle member. A pin portion protruding from one of the runaway prevention member or the swing drive device, and a pin groove formed on the other of the runaway prevention member or the swing drive device to engage with the pin portion. Prepared,
The swing drive device is configured as a telescopic actuator,
The pin groove is configured to have a gap in which the pin portion moves in order to move the runaway prevention member relative to the swing drive device forward in the approach direction of the vehicle. Item 4. The transfer device according to Item 2 or 3.   The arrangement position in the vertical direction of the runaway prevention member is set in a range of at least 400 mm and 600 mm or less from the lowest point of the holding device. The conveying apparatus as described.

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