JP2012011952A - Slide pallet unit and freight train car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide pallet unit and a freight train car having the same, high in reliability, easy in installation, and superior in work efficiency, by surely holding a leg part in a standing posture.SOLUTION: A leg part lock mechanism 30 of a temporary stand part of the slide pallet unit includes a diagonal member part 38 capable of fixing the leg part 26 in the standing attitude by holding an upper structure part side sliding part 38B in a predetermined position, a guide part 40 for the diagonal member part having a standing locking part 40B capable of locking the upper structure part side sliding part 38B, a standing lock member 42 capable of holding the upper structure part side sliding part 38B in the standing locking part 40B and capable of advancing-retreating so as to be separable from a position for covering an opening part of the standing locking part 40B by abutting on the upper structure part side sliding part 38B sliding toward the rising locking part 40B, and a standing spring member 44 for energizing the standing lock member 42 in the direction of the position for covering the opening part of the standing locking part 40B.

Description

  The present invention relates to a slide pallet unit installed on a loading platform of a freight vehicle and a freight vehicle equipped with the same.

  Conventionally, forklifts, cranes, and the like have been used for loading and unloading cargo trucks. By the way, there are various types of freight car bodies such as a flat body type without a roof and a box type with a roof. In the case of a car body with a roof, the cargo can be loaded onto the loading platform from above with a crane or the like. It is difficult to lift and unload a load from a loading platform with a crane or the like. There are some box-type car bodies that can open and close the side wall part called the wing type, but the side wall part is located above the loading platform even when the side wall part is opened. Because it is moving, it is difficult to load and unload with a crane.

  On the other hand, a plurality of first rails installed on the cargo bed, a plurality of second rails guided by the first rail and capable of projecting outside the cargo bed, and the second rail and the ground A loading / unloading device is known that includes a leg portion that is mounted between and supports a second rail, and a pallet loader that moves a load between the first rail and the second rail (for example, Patent Document 1). The leg is rotatably attached to the second rail so that it can be retracted.

  An oblique member that can be folded is mounted between the leg portion and the second rail, and the leg portion is held in an upright position by the oblique member. The diagonal member comprises a pair of links, one link is rotatably connected to the leg, the other link is rotatably connected to the second rail, and the two links are rotatably connected at the tip. ing. When the legs are stored, these links are also folded and stored. Further, the leg portion has a structure in which the tip portion is screwed to the base portion, and the length of the leg portion can be adjusted according to the height of the ground or the like.

  A freight vehicle equipped with this loading / unloading device can load a pallet loader on a plurality of second rails projecting outside the loading platform from above with a crane or the like, or load a cargo on the second rail with a crane or the like. It is possible to lift and unload luggage from other pallet loaders.

JP 7-315108 A

  However, since the above-described loading and unloading device has a structure in which the link for holding the leg in the standing posture is folded as the leg is retracted, the leg rotates to the side farther from the stowing posture than the standing posture. Even if this could be prevented, the leg could not be prevented from rotating to the side closer to the retracted position than the standing position. For example, if a single rod-shaped member is attached and detached with a bolt or the like between the leg portion and the rail, the leg portion may also be rotated from the standing posture to the side farther from the retracted posture. Although it is possible to prevent rotation closer to the retracted posture than the posture, it takes time to attach and detach, and there is a problem in terms of work efficiency.

  Moreover, since the above-mentioned loading / unloading device has a structure in which the tip portion is screwed to the base portion of the leg portion, there is also a problem that it takes time to adjust the length of the leg portion. In particular, when working in a place where the ground has a large undulation, there is a problem that the amount of adjustment of the required leg length is large and the working time is greatly increased.

  The present invention has been made in view of the above problems, and a slide pallet unit that can reliably hold the legs in an upright position, has high reliability, is easy to install, and has high work efficiency. It is an object to provide a provided freight vehicle.

  The present invention includes a loading platform upper guide portion installed on a loading platform of a freight vehicle, a temporary installation platform portion that can be installed adjacent to the loading platform and can be accommodated in the loading platform, and the temporary installation platform portion and the temporary installation platform portion. A movable pallet that is movable above the upper pedestal, and the temporary pedestal unit is provided with an upper structure unit including a pedestal upper guide unit for guiding the movable pallet, and stands to support the upper structure unit from below. A leg part rotatably coupled to the upper structure part so that it can be stored in the upper structure part, and a leg lock mechanism that can be fixed / released in an upright posture. The leg lock mechanism is connected to the upper structure part so as to be slidable on a leg side rotating part rotatably connected to the leg part and a predetermined sliding track along a horizontal direction. The upper structure part is provided with a sliding part on the upper structure part side The structure-side sliding portion is held at a predetermined position in the upper structure portion so that the leg portion can be fixed to the upright posture by being obliquely mounted between the leg portion and the upper structure portion. Adjacent to a certain diagonal member, a sliding surface portion extending to the predetermined position for guiding the upper structure portion side sliding portion of the diagonal member along the sliding track, and the sliding surface portion Then, the upper structure portion side sliding portion is recessed in the vertical direction from the sliding surface portion so that the upper structure portion side sliding portion can be fitted to the predetermined position, and the upper structure portion side sliding portion is moved in the sliding direction. By covering and covering the opening portion of the upright locking portion, the guide member for the slant member including the upright locking portion capable of locking the upper structure portion side sliding portion at the predetermined position. The upper structure portion side sliding portion can be held by the standing-up locking portion and is directed toward the standing-up locking portion. Standing lock that can move forward and backward in the sliding direction so that it can be separated from a position that covers the opening of the standing locking part by being in contact with the sliding part on the upper structure side that slides A member, a standing spring member that biases the standing lock member in a direction to cover the opening of the standing locking portion, and the standing lock member against the biasing force of the standing spring member The above-mentioned problem is solved by a slide pallet unit having a standing stopper element for latching a stopper at a position covering the opening of the standing latching part.

  The temporary gantry is further provided with a storage locked portion that is connected to the leg portion and holds the leg portion in a posture stored in the upper structure portion, and the leg lock mechanism includes: The storage locked portion is supported from below, the legs can be held in the posture stored in the upper structure portion, and contacted with the storage locked portion approaching from below. A storage lock member that is movable back and forth so that it can be separated from a position that supports the locked portion for storage from below, and the lock for storage in the direction of a position that supports the locked portion for storage from below A storage spring member for biasing the member, and a storage spring for locking the storage lock member at a position where the storage locked portion is supported from below against the biasing force of the storage spring member. And a stopper element.

  Further, the storage lock member supports the storage locked portion from below by moving in the same direction as the direction in which the standing lock member separates from the position covering the opening of the rising locking portion. The leg lock mechanism is connected to the standing lock member and the storage lock member, and these members are used as urging forces of the standing spring member and the storage spring member. Accordingly, the standing lock member is biased in a direction away from a position where it covers the opening of the standing locking portion and away from a position where the storage locking member supports the locked portion from below. The link mechanism is further engaged with the standing lock member and the storage lock member via a long hole in the sliding direction and a pin member engaged with the long hole. Configuration and May that.

  Further, at least one pair of the leg portions is provided, and the two leg portions constituting a pair are connected by a common locked portion for storage, and the diagonal member portion is U-shaped or U-shaped and has an opening side. Two end portions are the leg-side rotating portion, and the leg-side rotating portion is rotatably connected to the two leg portions that are paired via the storage locked portion, The end opposite to the two ends may be configured to be the upper structure side sliding portion.

  The leg portion includes an upper leg portion rotatably connected to the upper structure portion, a lower leg portion slidably fitted to the upper leg portion, and the lower leg portion fixed to the upper leg portion. And a releasable length lock mechanism, and the length of the leg is adjustable.

  Moreover, this invention solves the said subject with the freight car provided with the slide pallet unit in any one of said.

  ADVANTAGE OF THE INVENTION According to this invention, a leg part can be reliably hold | maintained in an upright attitude | position, a reliability is high, and a slide pallet unit with easy installation and working efficiency can be implement | achieved, and a freight vehicle provided with the same.

The rear view which shows typically the schematic structure of the freight vehicle and slide pallet unit which concern on embodiment of this invention The top view which shows typically schematic structure of the movable pallet of the slide pallet unit and a guide part on a loading platform The top view which shows typically the schematic structure of the temporary mount part of the slide pallet unit Rear view Side view Side view schematically showing an enlarged schematic structure of the legs of the temporary mount The top view which expands and shows the schematic structure of the leg part locking mechanism of the temporary installation frame part typically Rear view Rear view showing the structure of the main part of the leg lock mechanism in an enlarged manner Rear view showing the operation of the leg locking mechanism when the leg is standing Rear view showing the operation of the leg locking mechanism when the leg is retracted

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

  As shown in FIG. 1, a freight vehicle 10 according to the present embodiment includes a slide pallet unit 16 that can transfer a load 14 between the top of the loading platform 12 and a position protruding in the horizontal direction from the loading platform 12. The structure of the slide pallet unit 16 is characteristic.

  The freight vehicle 10 includes a box-shaped vehicle body called, for example, a wing type, and the vehicle body can be opened and closed.

  The slide pallet unit 16 includes a loading platform upper guide portion 18 installed on the loading platform of the freight vehicle 10, a temporary mounting platform portion 20 that can be installed adjacent to the loading platform 12 and can be accommodated in the loading platform 12, and a top of the loading platform 12. And a movable pallet 22 that is movable on the temporary mount 20.

  As shown in FIG. 2, the loading platform upper guide portion 18 is a pair of rod-shaped members arranged in parallel along the direction in which the movable pallet 22 is guided (in this embodiment, the vehicle width direction of the freight vehicle 10). Is placed. These loading platform upper guide portions 18 are arranged so that the cross-section is U-shaped and the side where the U-shaped opening is directed to the inner side (the side where the pair of loading platform upper guide portions 18 face each other). Further, the pair of loading platform upper guide portions 18 are connected by two pairs of connecting members 19A and 19B. The pair of connecting members 19 </ b> A connect the pair of loading platform upper guide portions 18 on the lower surfaces of both ends of the loading platform upper guide portion 18. On the other hand, the other pair of connecting members 19 </ b> B is arranged at a position that divides the cargo bed upper guide portion 18 into three equal parts in the longitudinal direction, and couples the pair of cargo bed upper guide portions 18 on the lower surface of the cargo bed upper guide portion 18. .

  As shown in FIGS. 3 to 5, the temporary mount 20 has an upper structure 24 and an upper structure so that the upper structure 24 can stand and support the upper structure 24 from below and can be stored in the upper structure 24. A leg portion 26 rotatably connected to the portion 24, a storage locked portion 28 connected to the leg portion 26 for holding the leg portion 26 in a posture stored in the upper structure portion 24, and the leg portion 26 And a leg lock mechanism 30 that can be fixed / released in an upright posture. The temporary mount 20 also includes turnbuckle-type auxiliary supports 31A and 31B for fixing the legs 26 in an upright posture.

  The upper structure portion 24 includes a gantry upper guide portion 32 for guiding the movable pallet 22, and three pairs of beam members 34 </ b> A, 34 </ b> B, 34 </ b> C that connect the gantry upper guide portion 32. A pair of gantry upper guide portions 32 are arranged in parallel along the direction in which the movable pallet 22 is guided by a bar-shaped member having a U-shaped cross section, like the loading platform upper guide portion 18. These gantry upper guide portions 32 are arranged so that the U-shaped opening side faces the outside (the side opposite to the side where the pair of gantry upper guide portions 32 face each other). Further, the pair of gantry upper guide portions 32 are arranged with a space narrower than the space between the pair of gantry upper guide portions 18. The beam members 34 </ b> A, 34 </ b> B, 34 </ b> C are arranged in this order at an appropriate interval from the intermediate position side in the longitudinal direction of the gantry upper guide portion 32 toward both ends. It is installed symmetrically with respect to the intermediate position. Two small rollers 33 for supporting the pair of gantry upper guide portions 32 from below are installed on the upper surface side of each of the connecting members 19A and 19B linking the pair of cargo bed upper guide portions 18 ( (See FIG. 2). The temporary gantry 20 is smooth between the top of the platform 12 and the position protruding in the horizontal direction from the platform 12 while being supported from below by the small roller 33 that rolls with the legs 26 stored in the upper structure 24. Can be moved to. In addition, the temporary mount 20 can protrude on both sides of the loading platform upper guide 18 (both sides of the loading platform 12 in the vehicle width direction). Small rollers 35 are installed on the upper surface side of both ends of the gantry upper guide portion 32.

  Two pairs (four) of the leg portions 26 are provided symmetrically with respect to an intermediate position in the longitudinal direction of the gantry upper guide portion 32. As shown in FIG. 6, each leg portion 26 includes an upper leg portion 26A that is rotatably connected to the upper structure portion 24, a lower leg portion 26B that is slidably fitted to the upper leg portion 26A, and a lower leg portion. 26B is provided with a length locking mechanism 36 that can fix / release 26B to the upper leg portion 26A, and the length of the leg portion 26 can be adjusted. The beam member 34B connecting the pair of gantry upper guide portions 32 also serves as the rotation axis of the leg portion 26, and the two leg portions 26 forming a pair can freely rotate to the upper structure portion 24 via the common beam member 34B. Installed on. The length lock mechanism 36 includes a rack member 36A that is long in the longitudinal direction of the leg portion 26 attached to the lower leg portion 26B side, a pinion (not shown) and a lever that are attached to the upper leg portion 26A side and engage with the rack member 36A. And a lock mechanism 36B that is capable of restricting / releasing the rotation of the pinion by lever operation.

  The storage locked portion 28 is a round bar-like member, and is provided with two corresponding to the two pairs of leg portions 26. The two leg portions 26 forming a pair are connected by a common locked portion 28 for storage.

  Two sets of leg lock mechanisms 30 are also provided corresponding to the two pairs of leg portions 26, and are installed symmetrically with respect to the intermediate position in the longitudinal direction of the gantry upper guide portion 32. Note that two auxiliary supports 31A are provided, for example, mounted between a pair of (two) leg portions 26 and the upper structure portion 24 on the outer side (side away from the loading platform 12). Moreover, it is also possible to mount the auxiliary support 31A between the pair (two) of the leg portions 26 on the inner side (side closer to the loading platform 12) and the upper structure portion 24 as necessary. On the other hand, a total of four auxiliary supports 31B are provided for each leg portion 26.

  As shown in FIGS. 7 to 9, each leg lock mechanism 30 is slidable on a leg-side rotating part 38 </ b> A rotatably connected to the leg part 26 and a predetermined sliding track along the horizontal direction. In this way, the upper structure portion side sliding portion 38B connected to the upper structure portion 24 is provided, and the upper structure portion side sliding portion 38B is held at a predetermined position in the upper structure portion 24 to thereby form the leg portion 26 and the upper structure portion. An oblique member 38 that is mounted obliquely between 24 and can be fixed in an upright posture, and an upper structure side sliding portion 38B of the oblique member 38 is guided along the sliding track. Therefore, the sliding surface portion 40A extending to the predetermined position and the upper structure portion side sliding portion 38B provided at the predetermined position adjacent to the sliding surface portion 40A are slidable. How to slide the upper structure portion side sliding portion 38B recessed in the vertical direction from the surface portion 40A The oblique member guide portion 40 having the upright engaging portion 40B capable of engaging the upper structure portion side sliding portion 38B at the predetermined position by restricting the movement of the upper structure portion, and the opening of the upright engaging portion 40B The upper structure portion side sliding portion 38B can be held by the standing locking portion 40B by covering the portion, and is brought into contact with the upper structure portion side sliding portion 38B that slides toward the standing locking portion 40B. Thus, the standing lock member 42 that can be moved forward and backward in the sliding direction so as to be separated from the position covering the opening of the standing locking portion 40B, and the standing locking member 42 is connected to the standing locking portion. The standing spring member 44 that biases in the direction of the position that covers the opening of 40B, and the position that covers the opening of the locking portion 40B for standing up against the biasing force of the standing spring member 44 And an upstanding stopper element 46 for locking to

  Further, each leg lock mechanism 30 supports the locked portion 28 for storage from below, can hold the leg 26 in the posture stored in the upper structure 24, and approaches the storage lock approaching from below. A storage locking member 48 that can be moved forward and backward so that it can be separated from a position for supporting the storage locked portion 28 from below by being brought into contact with the locking portion 28, and a storage locked portion The storage spring member 50 that biases the storage lock member 48 in the direction of the position where the 28 is supported from below, and the locked portion for storage against the biasing force of the storage spring member 50 And a retracting stopper element 52 for locking the lever 28 at a position where it is supported from below. The storage lock member 48 supports the storage locked portion 28 from below by moving in the same direction as the direction in which the lock member 42 for rising stands away from the position covering the opening of the lock 40B for standing. It is comprised so that it may space apart from.

  Further, each leg lock mechanism 30 is connected to the standing lock member 42 and the storage lock member 48 and resists the urging force of the standing spring member 44 and the storage spring member 50 to raise the lock member. A link mechanism 54 for biasing in a direction away from a position where 42 is separated from a position covering the opening of the standing locking portion 40B and the storage lock member 48 supports the locked portion 28 for storage from below. In addition.

  The diagonal member 38 is U-shaped or U-shaped, and the two end portions on the opening side are leg-side rotating portions 38A, and the leg-side rotating portion 38A is provided with a pair (2 The leg part 26 of the book) is rotatably connected. The upper structure portion side sliding portion 38B is an end portion on the opposite side to the two end portions on the opening side in the diagonal member portion 38.

  The oblique member guide section 40 is a substantially rectangular plate-like body that extends from the vicinity of the center of the beam member 34A (in the direction perpendicular to the longitudinal direction of the gantry upper guide section 32) in the longitudinal direction of the gantry upper guide section 32. A base member 40C that extends to the vicinity of the intermediate position and whose end on the beam member 34A side is bent upward; and a slope portion 40D that is installed near the end of the base member 40C that is bent upward. Yes. The base member 40C is directly or indirectly coupled to the beam member 34A. The slope portion 40D is composed of two substantially right-angled triangular plate-like members, and these plate-like members are inclined upward in the direction in which the oblique side faces upward and away from the longitudinal intermediate position of the gantry upper guide portion 32. It is installed in a posture. Further, these substantially right triangular plate-like members are installed in parallel with a certain gap in a direction perpendicular to the sliding direction of the upper structure portion side sliding portion 38B. Note that the vicinity of the upper end portion of the slope portion 40D (the upper surface portion of the end portion on the side facing the end portion bent upward in the base member 40C) is a horizontal plane. The sliding surface portion 40A is a portion closer to the intermediate position in the longitudinal direction of the gantry upper guide portion 32 than the slope portion 40D in the upper surface portion of the slope portion 40D and the upper surface portion of the base member 40C. The standing locking portion 40B includes an end portion bent upward in the base member 40C and an end portion of a slope portion 40D facing the end portion.

  The standing lock member 42 includes a covering portion 42A for covering the opening of the standing engaging portion 40B, the longitudinal direction of the gantry upper guide portion 32 from the covering portion 42A, and the intermediate position side of the gantry upper guide portion 32. And a standing bracket 42C coupled to an end of the shaft portion 42B opposite to the covering portion 42A, and the standing spring holder 56 at the shaft portion 42B. It is slidably supported by. The standing spring holder 56 is a substantially rectangular hollow structure in which an opening of a member in which a plate-like body is bent in a U-shape is closed with another plate material, and the longitudinal direction of the beam member 34A (the longitudinal length of the guide unit 32 on the gantry). The central part of the direction perpendicular to the direction). The shaft portion 42 </ b> B of the standing lock member 42 is fitted in through holes formed in the side wall portions on both sides in the longitudinal direction of the gantry upper guide portion 32 in the standing spring holder 56.

  The standing spring member 44 is a compression coil spring, and is mounted between the side wall portions on both sides in the longitudinal direction of the gantry upper guide portion 32 in the standing spring holder 56 so as to surround the shaft portion 42 </ b> B of the standing locking member 42. Yes.

  The standing stopper element 46 is a ring-shaped member fixed to the outer periphery of the shaft portion 42B of the standing locking member 42, and is one side in the longitudinal direction of the gantry upper guide portion 32 (the covering portion 42A side) in the standing spring holder 56. Between the side wall portion and the standing spring member 44. In a normal state (a state in which the standing stopper element 46 is in contact with the side wall portion of the standing spring holder 56), the covering portion 42A of the standing locking member 42 is positioned so as to cover the opening of the standing locking portion 40B. The stopper element 46 is fixed to the outer periphery of the shaft portion 42B of the standing lock member 42.

  The storage lock member 48 includes a holding portion 48A for supporting the storage locked portion 28 from below and holding the leg portion 26 in a posture stored in the upper structure portion 24, and a guide on the gantry from the holding portion 48A. A storage rod coupled to the longitudinal direction of the portion 32 and a round bar-shaped shaft portion 48B protruding to the opposite side to the intermediate position side of the gantry upper guide portion 32 and the end portion of the shaft portion 48B opposite to the holding portion 48A. Bracket 48C, and is slidably supported by storage spring holder 58 at shaft portion 48B. The holding portion 48A is a slope portion in which at least a part of the lower surface portion is inclined downward in a direction away from the longitudinal intermediate position of the gantry upper guide portion 32, and the locked portion 28 for storage approaching from below is provided. The storage lock member 48 is urged in a direction away from the position where the storage locked portion 28 is supported from below by contacting the inclined surface. The storage spring holder 58 is a member obtained by bending a plate-like body into a U-shape, and is coupled to the beam member 34 </ b> A via an overhang member 59. The shaft portion 48 </ b> B of the storage lock member 48 is fitted in through holes formed in two opposing side wall portions of the storage spring holder 58.

  The storage spring member 50 is a compression coil spring similar to the standing spring member 44, and is mounted so as to surround the shaft portion 48B of the storage lock member 48 between two opposing side wall portions of the storage spring holder 58. Has been.

  The storage stopper element 52 is a ring-shaped member fixed to the outer periphery of the shaft portion 48B of the storage lock member 48 in the same manner as the standing stopper element 46. The storage stopper element 52 includes a side wall portion on the holding portion 48A side of the storage spring holder 58. It is installed between the storage spring member 50. In the normal state (the state in which the storage stopper element 52 is in contact with the side wall portion of the storage spring holder 58 on the side of the holding portion 48A), the holding portion 48A of the storage lock member 48 supports the locked portion 28 for storage from below. The storage stopper element 52 is fixed to the outer periphery of the shaft portion 48B of the storage lock member 48 so as to be held in position.

  The link mechanism 54 includes a handle 60, a bell crank mechanism 62, and a connecting member 64 that connects the standing bracket 42 </ b> C of the standing lock member 42 and the storage bracket 48 </ b> C of the storage lock member 48. The handle 60 is installed in the upper structure portion 24 so as to be slidable in a direction perpendicular to the longitudinal direction of the gantry upper guide portion 32 (the sliding direction of the standing lock member 42 and the storage lock member 48). . The bell crank mechanism 62 moves the handle 60 in a direction perpendicular to the longitudinal direction of the gantry upper guide portion 32 (the sliding direction of the upright lock member 42 and the storage lock member 48) and the upright lock member 42 and the storage lock. It is configured to convert the sliding direction of the member 48 and amplify the force acting on the handle 60 and transmit it to the connecting member 64. The connecting member 64 is a member bent in a U-shape and is arranged so that two opposing wall portions are aligned in the vertical direction, and is engaged with the standing bracket 42C via the pin member 66 at the upper side wall portion, At this portion, the storage bracket 48C is engaged via a pin member 68. The standing bracket 42C is formed with a long hole 70 that is long in the sliding direction of the standing lock member 42. The standing bracket 42C is engaged with the connecting member 64 through the pin member 66 in the long hole 70. . The storage bracket 48C is also formed with a long hole 71 that is long in the sliding direction of the storage lock member 48. The storage bracket 48C is also engaged with the connecting member 64 via the pin member 68 in the long hole 71. Has been.

  The movable pallet 22 includes a substantially rectangular frame portion 72, an upper surface portion 74 supported by the frame portion 72, and four outer rollers 76 that are rotatably mounted in the vicinity of the four corners of the frame portion 72. And four inner rollers 78 that are rotatably mounted in the vicinity of the four corners of the frame portion 72. The movable pallet 22 is engaged with the loading platform upper guide portion 18 at the outer roller 76, and is engaged with the mounting platform upper guide portion 32 at the inner roller 78. The movable pallet 22 is provided with a pair of fork pockets 80 that are long in the moving direction of the movable pallet 22 and a pair of roller skate rails 82 that are also long in the moving direction of the movable pallet 22.

  Next, a method for using the slide pallet unit 16 will be described.

  First, a method of using the cargo 14 on the loading platform 12 of the freight vehicle 10 will be described. First, the operator opens the side wall portion of the vehicle body, and moves the slide pallet unit 16 in a state where the temporary gantry 20 is stored inside the pair of loading platform upper guides 18 and the movable pallet 22 is further disposed thereon. It is loaded on the loading platform 12 of the freight vehicle 10. The slide pallet unit 16 may be loaded in advance on the loading platform 12 of the freight vehicle 10. When a forklift or the like is used for loading the slide pallet unit 16, a fork pocket 80 can be used. The loading platform upper guide portion 18 only needs to be placed on the loading platform 12. Moreover, you may fix the loading platform upper guide part 18 on the loading platform 12 with a predetermined | prescribed jig | tool, a volt | bolt, etc. as needed.

  Next, the worker moves the temporary mount 20 with the legs 26 stored in the upper structure 24 along the loading platform upper guide 18 so that the temporary mount 20 protrudes from the loading platform 12 in the horizontal direction. . At this time, the temporary mount 20 is supported from below by a small roller 33 that rolls.

  Next, the operator pulls the handle 60, and from the position where the storage lock member 48 supports the locked portion 28 for storage from below against the urging force of the standing spring member 44 and the storage spring member 50. The storage lock member 48 is slid in the separating direction. As a result, the storage locked portion 28 and the leg portion 26 connected thereto are released from the storage lock member 48, and the leg portion 26 rotates downward. At this time, the standing lock member 42 is also separated from the position covering the opening of the standing locking portion 40B. When the leg portion 26 starts to rotate downward, the operator releases his / her hand from the handle 60. As a result, the urging force of the standing spring member 44 and the storage spring member 50 causes the storage lock member 48 to return to the position where the locked portion 28 for storage is supported from below, and the lock member 42 for standing also rises. It returns to the position which covers the opening part of the latching | locking part 40B.

  As shown in FIG. 10, when the leg portion 26 rotates downward, the upper structure portion side sliding portion 38B of the diagonal member 38 slides on the sliding surface portion 40A of the diagonal member guide portion 40. It faces in the direction of the standing locking portion 40B and comes into contact with the standing locking member 42 that covers the opening of the rising locking portion 40B. As a result, the standing lock member 42 separates again from the position covering the opening of the standing locking portion 40B against the urging force of the standing spring member 44, and slides on the upper structure portion side of the diagonal member 38. The portion 38B is fitted into the standing locking portion 40B. Thereby, the leg part 26 becomes a standing posture. Since the standing lock member 42 is connected to the handle 60 via the bell crank mechanism 62, the force for operating the handle 60 is amplified and transmitted to the standing lock member 42, while acting on the standing lock member 42 side. The force to be transmitted is reduced and transmitted to the handle 60. Therefore, the handle 60 can be a resistance for the standing lock member 42 to slide, but the standing bracket 42C is formed with a long hole 70 in the sliding direction of the standing lock member 42, so that Since the bracket 42C is engaged with the connecting member 64 via the pin member 66 in the long hole 70, the standing lock member 42 can be opened to the standing locking portion 40B without moving the bell crank mechanism 62 or the handle 60. It slides smoothly in a direction away from the position covering the part.

  When the upper structure portion side sliding portion 38B of the diagonal member 38 is fitted to the standing locking portion 40B, the standing lock member 42 is released from the upper structure portion side sliding portion 38B, and the standing spring member 44 is attached. Due to the force, the standing lock member 42 returns to the position covering the opening of the standing locking portion 40B. Thereby, the upper structure part side sliding part 38B is held by the standing locking part 40B, and the leg part 26 is held in an upright posture.

  Note that turnbuckle-type auxiliary supports 31A and 31B are mounted between the leg portion 26 and the upper structure portion 24 as necessary. If necessary, the length of the leg 26 is adjusted by operating the length lock mechanism 36 so that the length of the leg 26 matches the level of the ground. Since the length lock mechanism 36 is configured to include a rack and a pinion, for example, even when the level difference on the ground is large and the adjustment amount of the leg length is large, the adjustment operation of the leg length can be performed quickly. Can be completed. By performing the above operation on the two pairs of leg portions 26, the installation of the temporary mount base portion 20 is completed.

  Next, the operator manually moves the movable pallet 22 from the loading platform 12 onto the temporary mount 20. The movable pallet 22 is guided by the loading platform upper guide portion 18 and the loading platform upper guide portion 32 and smoothly moves onto the temporary mounting platform portion 20.

  In this state, the load 14 is lifted by a crane or the like, and the load 14 is placed on the movable pallet 22 from above. The freight vehicle 10 includes a box-shaped vehicle body called a wing type, and even when the side wall portion is opened, there is a portion that forms the side wall portion of the vehicle body on the loading platform 12. Since the movable pallet 22 is on the temporary mount 20 that protrudes laterally, the load 14 can be easily loaded onto the movable pallet 22 from above with a crane or the like.

  Next, the operator manually moves the movable pallet 22 toward the loading platform 12 and accommodates the load 14 together with the movable pallet 22 on the loading platform 12. Thereby, the loading operation of the load 14 on the loading platform 12 of the freight vehicle 10 is completed.

  Next, the worker stores the temporary gantry 20 on the loading platform 12 in the reverse order of the above. Specifically, first, the operator operates the length lock mechanism 36 to draw the lower leg portion 26B of the leg portion 26 into the upper leg portion 26A so that the leg portion 26 is contracted. Next, the operator pulls the handle 60 and moves away from a position where the standing lock member 42 covers the opening of the standing locking portion 40B against the urging force of the standing spring member 44 and the storage spring member 50. The standing lock member 42 is slid in the direction. At this time, the storage lock member 48 is also separated from the position where the storage locked portion 28 is supported from below. In this state, when the leg portion 26 is slightly rotated upward (in the retracting direction) by human power, the upper structure portion side sliding portion 38B of the diagonal member 38 is detached from the standing locking portion 40B. As a result, the leg portion 26 can be further rotated upward (in the storing direction). When the leg portion 26 is rotated to a position where the upper structure portion side sliding portion 38B is detached from the standing locking portion 40B, the hand is released from the handle 60. As a result, the standing lock member 42 returns to the position covering the opening of the standing locking portion 40B by the urging force of the standing spring member 44 and the retracting spring member 50. The storage lock member 48 also returns to the position where the storage locked portion 28 was supported from below. When the leg portion 26 is rotated further upward (in the storing direction) by human power and the storing locked portion 28 comes into contact with the inclined surface of the lower surface of the holding portion 48A of the storing locking member 48, the storing lock member 48 is The storage locked portion 28 is separated from the position where the storage locked portion 28 is supported from below against the biasing force of the storage spring member 50. The storage bracket 48C is formed with a long hole 71 that is long in the sliding direction of the storage lock member 48, and the storage bracket 48C is engaged with the connecting member 64 through the pin member 68 in the long hole 71. Therefore, without moving the bell crank mechanism 62 or the handle 60, the storage lock member 48 slides smoothly in a direction away from the position where the storage locked portion 28 is supported from below. When the leg 26 is further rotated upward and the locked portion 28 for storage is raised above the holding portion 48A of the lock member 48 for storage, the lock member 48 for storage is released from the locked portion 28 for storage. The storage lock member 48 returns to the position where the storage locked portion 28 is supported from below by the biasing force of the storage spring member 50. As a result, the leg portion 26 is held in the posture stored in the upper structure portion 24. By performing the above operation on the two pairs of legs 26, the storage of the legs 26 in the upper structure 24 is completed.

  Next, the worker moves the temporary mount 20 with the legs 26 stored in the upper structure 24 onto the loading platform 12. The temporary gantry 20 is stored inside the pair of cargo bed guides 18. Further, the storing operation is completed by closing the side wall of the vehicle body.

  In addition, when unloading the load 14 from the loading platform 12 of the freight car 10, the temporary mount 20 is installed outside the loading platform 12 in the same manner as the loading operation described above, and as shown in FIG. The load 14 may be moved together with the movable pallet 22 from the loading platform 12 to the temporary mount 20, the loading 14 is lifted by a crane or the like, and the loading 14 is lowered from the movable pallet 22.

  In this way, the upper structure portion side sliding portion 38B of the diagonal member 38 is fitted into the standing engagement portion 40B, and the standing lock member 42 covers the opening portion of the standing engagement portion 40B so that the leg portion is covered. Since 26 is securely held in the standing posture, the slide pallet unit 16 is highly reliable.

  In addition, since both of the pair of gantry upper guide portions 32 are provided in the upper structure portion 24 of the temporary gantry 20, when installing the temporary gantry 20, the pair of gantry upper guides 32 are separately attached to the loading platform 12. It is not necessary to pull out from above, and the upper pallet 24 (with the legs 26 stored) need only be pulled out from the top of the cargo bed 12, so that the slide pallet unit 16 can be loaded onto the cargo bed 12, from the cargo bed 12. Contributes to improving the efficiency of unloading work.

  In addition, the operation of the handle 60 of the link mechanism 54 may be performed only once at the start of work in the work of raising the leg part 26 of the temporary mount 20 or the work of storing it. Is automatically performed by the leg lock mechanism 30, the slide pallet unit 16 also contributes to improving the efficiency of the loading operation on the loading platform 12 and the unloading operation from the loading platform 12.

  Further, the length lock mechanism 36 of the leg portion 26 is configured to include a rack and a pinion. For example, even when the step of the ground is large and the adjustment amount of the leg length is large, the length of the leg portion is adjusted. Since the adjustment work can be completed quickly, the slide pallet unit 16 also contributes to an improvement in the efficiency of the loading work on the loading platform 12 and the unloading work from the loading platform 12.

  Moreover, since the slide pallet unit 16 can be easily installed on the loading platform 12 of the freight car 10, it is highly versatile.

  In the present embodiment, the temporary mount 20 includes two pairs (four) of the leg portions 26. For example, when the assumed weight of the luggage is relatively light, the leg portions 26 are provided as one pair. It is good also as a structure provided only with a pair (two). For example, it is good also as a structure provided with a pair of (two) leg part only in the side away from the loading platform 12 in the temporary mounting base part 20. FIG.

  In the present embodiment, the temporary mount 20 is installed on the side of the loading platform 12 in the vehicle width direction, and the movable pallet 22 moves in the vehicle width direction of the freight vehicle 10. May be installed behind the loading platform 12 so that the movable pallet 22 moves in the front-rear direction of the freight vehicle 10.

  In the present embodiment, the movable pallet 22 can project on both sides of the loading platform upper guide portion 18. For example, the movable pallet 22 projects only on one side in the vehicle width direction of the freight vehicle 10 or only on the rear side. When it is sufficient, the movable pallet may be configured to protrude only on one side of the loading platform upper guide portion.

  In the present embodiment, the freight vehicle 10 includes a box-shaped vehicle body called a wing type. However, the present invention can be applied to other types of box-shaped vehicle bodies and freight vehicles provided with a flat body. is there. The freight vehicle is not limited to a truck, and the present invention can be applied to, for example, a trailer or a freight train.

  The present invention can be used for freight vehicles and the like.

DESCRIPTION OF SYMBOLS 10 ... Cargo truck 12 ... Loading platform 16 ... Slide pallet unit 18 ... Loading platform upper guide part 20 ... Temporary mount frame part 22 ... Movable pallet 24 ... Upper structure part 26 ... Leg part 26A ... Upper leg part 26B ... Lower leg part 28 ... Cover for storage Locking portion 30 ... Leg locking mechanism 32 ... Stage upper guide portion 36 ... Length locking mechanism 38 ... Diagonal portion 38A ... Leg side rotating portion 38B ... Upper structure portion side sliding portion 40 ... Diagonal portion guide portion 40A ... Sliding surface portion 40B ... Standing locking portion 42 ... Standing lock member 44 ... Standing spring member 46 ... Standing stopper element 48 ... Storage locking member 50 ... Storage spring member 52 ... Storage stopper element 54 ... Link mechanism 66, 68 ... Pin member 70, 71 ... Long hole

Claims (6)

Move on the loading platform and the temporary loading platform on the loading platform, the temporary loading platform that can be installed adjacent to the loading platform and can be accommodated in the loading platform, and the temporary loading platform. A movable pallet that is possible,
The temporary mount section can be supported by an upper structure section having a mount upper guide section for guiding the movable pallet, and can stand upright to support the upper structure section from below and can be stored in the upper structure section. A leg part rotatably connected to the upper structure part, and a leg lock mechanism that can be fixed / released in an upright posture.
The leg lock mechanism includes a leg-side rotating part rotatably connected to the leg part and an upper structure connected to the upper structure part so as to be slidable on a predetermined sliding track along a horizontal direction. The upper structure portion side sliding portion is held at a predetermined position in the upper structure portion so that the leg portion is obliquely mounted between the leg portion and the upper structure portion. A diagonal member that can be fixed to the upright posture, and a slide that extends to the predetermined position to guide the upper structure portion side sliding portion of the diagonal member along the sliding track. The upper structure portion side slide is recessed in the vertical direction from the sliding surface portion so as to be fitted to the moving surface portion and the sliding surface portion at the predetermined position so that the upper structure portion sliding portion can be fitted. The movement of the moving part in the sliding direction is restricted, and the upper structure part side sliding part is placed at the predetermined position. Covering the upper structure part side sliding part to the standing part locking part by covering the opening part of the standing part and the oblique part guide part having the standing part latching part that can be stopped And the upper structure portion side sliding portion that slides toward the standing locking portion so as to be separated from a position that covers the opening of the rising locking portion. A standing-up lock member that can be moved back and forth in the sliding direction, a standing-up spring member that urges the standing-up lock member in the direction of a position that covers the opening of the standing-up engaging portion, and the upright spring member A slide pallet unit, comprising: a standing stopper element for latching the standing lock member at a position covering the opening of the standing latching part against the urging force. In claim 1,
The temporary gantry is further provided with a storage locked portion that is connected to the leg portion and holds the leg portion in a posture stored in the upper structure portion,
The leg locking mechanism is configured to support the storage locked portion from below and hold the leg in a posture stored in the upper structure portion, and approach the storage locked portion from below. And a storage lock member that can be moved forward and backward so that the storage locked portion can be separated from a position where the storage locked portion is supported from below, and the storage locked portion is supported from below. A storage spring member for urging the storage lock member in a position direction, and a position for supporting the storage lock member from below against the urging force of the storage spring member. A slide pallet unit, further comprising: a storage stopper element for locking to the storage pallet. In claim 2,
The storage lock member supports the storage locked portion from below by moving in the same direction as the direction in which the lock member for standing moves away from the position covering the opening of the locking portion for standing up. Configured to be spaced apart from
The leg lock mechanism is connected to the standing lock member and the storage lock member, and the standing lock member is against the urging force of the standing spring member and the storage spring member. A link mechanism for urging the storage lock member away from a position covering the opening of the standing locking portion and biasing the storage lock member from a position supporting the storage locked portion from below;
The slide mechanism is characterized in that the link mechanism is engaged with the standing lock member and the storage lock member via a long hole that is long in the sliding direction and a pin member that is engaged with the long hole. . In claim 2 or 3,
Comprising at least a pair of the legs,
The two leg portions forming a pair are connected by the common locked portion for storage,
The diagonal portion is U-shaped or U-shaped, and two ends on the opening side are the leg-side rotating portions, and the leg-side rotating portions are paired via the storage locked portions. A slide pallet unit, wherein the slide pallet unit is rotatably connected to the two leg portions, and an end portion opposite to the two end portions on the opening side is the upper structure portion side sliding portion. In any one of Claims 1 thru | or 4,
The leg includes an upper leg that is rotatably connected to the upper structure, a lower leg that is slidably fitted to the upper leg, and a lower leg that can be fixed to and released from the upper leg. A slide pallet unit, wherein the length of the leg portion is adjustable.   A freight vehicle comprising the slide pallet unit according to any one of claims 1 to 5.

Images