JP2020045058A - Goods loaded dolly - Google Patents

Abstract

To provide a goods loaded dolly which is preferable for vehicles, in particular bicycles etc., and enables easy loading to/unloading from a loading space part of a vehicle with loaded goods placed thereon.SOLUTION: A goods loaded dolly includes a lifting tool 5 which supports a placement base 4 in a manner such that the placement base 4 can move up or down relative to a dolly base part 3. The lifting tool 5 includes: spring means 11 which biases the placement base 4 and the dolly base part 3 in a direction that the placement base 4 and the dolly base part 3 move close to each other; an actuator 12 which moves up the placement base 4 from the dolly base part 3 against biasing force of the spring means 11; and an inflow tool 13 which causes a high pressure fluid to flow into the actuator 12.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a loading truck having a loading table on which a load is placed so as to be able to move up and down.

  Even in an area where road conditions are poor and vehicles such as four-wheeled vehicles are difficult to enter, or where parking and stopping on the road are difficult, it is necessary to deliver packages such as home delivery. At this time, it is widely practiced to temporarily park a vehicle in a space where parking is possible, such as a parking lot, and to deliver the luggage using a bogie from there to a delivery position.

  However, in this case, it is necessary to reload the luggage from the vehicle to the trolley, and when the distance from the parking position to the delivery position is large, it is necessary to push the trolley for a long time. Therefore, much labor is required for the worker.

  Patent Literature 1 listed below proposes a rear-car-shaped towing truck connected to a bicycle. This is useful for delivery operations in areas with poor road conditions. However, since the truck is towed by a bicycle, the road surface resistance during traveling is large, and the labor for the operator is still large. In addition, there is a problem that it is difficult to make a small turn and it is difficult to operate the bicycle.

  On the other hand, Patent Literature 2 below proposes an elevating bogie device that enables a bogie carrying luggage to be directly loaded and unloaded on a truck bed or the like. However, this structure requires a hydraulic cylinder and a hydraulic tank for the elevating mechanism, and a detachable rear wheel (sub-wheel) is additionally required for loading the bogie, so that the structure is complicated and heavy. . For this reason, it is difficult to adopt the present invention to a vehicle such as a bicycle.

JP 2008-012956 A JP 2001-10502 A

  An object of the present invention is to provide a loading truck that is particularly suitable for vehicles such as bicycles and that can easily load and unload cargo on a loading portion of the vehicle while carrying luggage.

The present invention is a load carrier capable of moving with a load,
A traveling trolley base having wheels, a mounting table for mounting luggage, and an elevating device that supports the mounting table so as to be able to move up and down relative to the trolley base,
The lifting device,
A spring means for urging the mounting table and the carriage base in a direction to approach each other,
An actuator for lifting the mounting table away from the carriage base against the urging force of the spring means,
And an inflow device for flowing high-pressure fluid into the actuator,
The mounting table is lifted from the carriage base by the flow of the high-pressure fluid into the actuator,
Due to the outflow of the high-pressure fluid from the actuator, the urging force of the spring means causes the mounting table and the bogie base to approach each other.

  In the loading truck according to the present invention, in a state in which the loading platform is lifted from the truck base, the loading truck is pushed under the loading platform without interfering with the loading platform and wheels of the vehicle. It is preferable that a space in which the placing table can be positioned above the loading section is formed.

  In the loading cart according to the present invention, after the placing table is positioned above the loading section, the high-pressure fluid is allowed to flow out, whereby the placing table is supported by the loading section, and the cart base is grounded. It is preferred that it rises from the surface.

  In the loading cart according to the present invention, it is preferable that the placing table includes a falling-off preventing device that engages with the loading section to prevent the loading section from falling off.

In the loading cart according to the present invention, the actuator is a pneumatic cylinder, and the inflow device is an air pump for supplying high-pressure air to the pneumatic cylinder,
Preferably, the pneumatic cylinder or the air pump includes an exhaust valve for discharging high-pressure air from the pneumatic cylinder.

  In the loading truck according to the present invention, it is preferable that the truck base includes a U-shaped frame body in a plan view in which rear ends of a pair of side frame pieces are connected by a rear joint frame piece.

In the loading truck according to the present invention, the lifting / lowering device includes X-shaped cross link bodies in which intermediate portions of the first link and the second link are connected to each other with a horizontal axis, on both sides in the width direction of the truck.
In each of the cross link bodies, one end of the first link and one end of the second link are pivotally connected to the cart base and the mounting table, respectively.
It is preferable that the other end of the first link and the other end of the second link are respectively attached to the mounting base and the carriage base so as to be movable back and forth.

  In the loading truck according to the present invention, in the cross link bodies on both sides, it is preferable that the other ends of the first links are integrally connected to each other by a connecting member.

  In the loading truck according to the present invention, it is preferable that the actuator is disposed so as to horizontally move the connecting member with respect to the mounting table.

  As described above, in the present invention, the mounting table is lifted from the carriage base by the flow of the high-pressure fluid into the actuator. Also, the mounting table can cause the mounting table and the carriage base to approach each other by the urging force of the spring means due to the outflow of the high-pressure fluid from the actuator.

  Therefore, if the loading platform is advanced in a state where the mounting platform is lifted from the bogie base, it is possible to position the mounting platform on a loading platform of a vehicle such as a bicycle. In this state, when the high-pressure fluid flows out of the actuator, the mounting table is first supported by the loading section, and then the carriage base can be lifted off the ground.

  That is, it is possible to easily load and unload a loading truck on the loading portion of the vehicle while the luggage is placed on the loading table. In the loaded state, the bogie base rises from the ground and does not contact the ground. Therefore, for example, when the vehicle is a bicycle or the like, the running resistance from the road surface is reduced, so that the labor for the operator can be reduced. Further, the adverse effect on the steering performance of the vehicle can be reduced.

  Here, the loading truck can make the mounting table and the truck base approach each other by the urging force of the spring means. Therefore, the structure of the elevating mechanism can be simplified and the weight can be reduced as compared with a case where a hydraulic pump and a hydraulic cylinder are used, for example. In addition, no separate auxiliary wheels are required. For this reason, it can be used in vehicles such as bicycles, which helps to improve delivery operations in areas where road conditions are poor.

It is a side view showing the state where the loading truck of one embodiment of the present invention was loaded in the vehicle. It is a perspective view of a loading cart. It is a perspective view of a loading cart. It is a top view of a loading truck. (A), (b) is the side view and back view of a loading truck. It is a side view explaining the first half of loading of a loading truck to a loading platform part. It is a rear view explaining the first half of loading of a loading truck to a loading platform part. It is a side view explaining the latter half of loading of a loading truck to a loading platform part. (A), (b) is a perspective view which shows a fall prevention tool. (A) is a perspective view conceptually showing a support structure of a main wheel, and (b) is a perspective view conceptually showing a support structure of an auxiliary wheel.

Hereinafter, embodiments of the present invention will be described in detail.
As shown in FIG. 1, the loading truck 1 of the present embodiment is a movable truck carrying a load W, and is configured to be able to be loaded and unloaded on the loading portion 41 of the vehicle 40 with the load W loaded. Have been.

  As the vehicle 40, a bicycle provided with a plurality of wheels 42 on the rear wheel side is suitably employed. In particular, as in this example, it is preferable that the rear wheel 42 is composed of a main driving wheel 42A and auxiliary wheels 42B arranged on both sides thereof. Such a bicycle bears the loading load by the three wheels 42, so that the loading capacity can be increased, and the bicycle can be prevented from tipping over and stable traveling can be performed, so that the bicycle can be suitably used for delivery work. As the bicycle, a so-called assist type bicycle using an electric motor as an auxiliary power is suitably used, but a non-assist type bicycle having no auxiliary power can also be used. Also, a motorcycle having a plurality of rear wheels may be used in place of a bicycle.

  The vehicle 40 includes a loading platform 41 above the wheels 42 on the rear wheel side. In this example, the loading platform 41 has a rectangular frame shape that is long in the front-rear direction. At the front end of the loading platform 41, for example, an inverted U-shaped stopper portion 41A for contacting and positioning the loaded loading truck 1 is provided. It protrudes upward.

  Next, the loading trolley 1 supports a freely movable trolley base 3 having wheels 2, a mounting table 4 for mounting a load W, and the mounting table 4 so as to be able to move up and down relative to the trolley base 3. And a lifting tool 5 that moves. 5A and 5B, the mounting table 4 is lifted from the carriage base 3 (hereinafter, sometimes referred to as a first state Y1), and the mounting table 4 and the carriage base 3 are approached. A state (hereinafter, may be referred to as a second state Y2) is shown.

  As shown in FIG. 2, the bogie base 3 includes a U-shaped frame body 6 in a plan view in which the rear ends of the pair of side frame pieces 6A, 6A are connected by a rear joint frame piece 6R. Wheels 2 such as caster wheels are rotatably attached to the front and rear of the lower surface of each side frame piece 6A. An inverted U-shaped handle 9 for a worker to manually operate the loading cart 1 is provided on the rear joint frame piece 6R.

  In this example, the mounting table 4 includes a rectangular frame body 7 in which the front end and the rear end of the pair of side frame pieces 7A, 7A are connected by the front joint frame piece 7F and the rear joint frame piece 7R. The luggage W is placed on the upper surface. A contact portion 22 for contacting the stopper portion 41A on the vehicle body side projects upward from the mounting table 4 (the front joint piece 7F in this example). Further, on the mounting table 4 (in this example, the side frame piece 7A), for example, a pin-shaped positional deviation preventing portion 23 for preventing a positional deviation in the width direction by coming into contact with the outer surface of the loading table portion 41 projects downward. I have. On the mounting table 4 (in this example, the front and rear joint frame pieces 7F and 7R), for example, an inverted U-shaped fixing frame 24 for fixing the loaded package W projects upward.

  As shown in FIG. 3, the lifting / lowering tool 5 includes a pair of X-shaped cross link bodies 10, a spring means 11, an actuator 12, and an inflow tool 13.

  The cross link body 10 has an X shape in which an intermediate portion between the first link 15 and the second link 16 is connected to each other by a horizontal shaft 19, and is disposed on both sides in the bogie width direction.

  Specifically, one end 15a (for example, a front end) of the first link 15 and one end 16a (for example, the front end) of the second link 16 are respectively connected to the bogie base 3 (in this example, the side frame 6A). It is pivotally attached to the mounting table 4 (side frame piece 7A in this example). The other end 15b (for example, the rear end) of the first link 15 and the other end 16b (for example, the rear end) of the second link 16 are respectively connected to the mounting table 4 (the side frame piece 7A in this example) and It is attached to the carriage base 3 (in this example, the side frame piece 6A) so as to be movable back and forth.

  Therefore, the mounting table 4 is guided by the pair of cross links 10 so as to be able to move up and down with respect to the carriage base 3.

  In this example, between the cross link bodies 10 on both sides, the other end portions 15b of the first link 15 are integrally connected to each other by a connecting member 17.

  The connecting member 17 forms a U-shaped frame in a plan view in which the front ends of the pair of side pieces 17A, 17A are connected by a joint piece 17B. The other end 15b of the first link 15 is pivotally connected to the rear end of each side piece 17A. The side piece 17A extends parallel to the side frame piece 7A, and the joint piece 17B extends parallel to the previous joint frame piece 7F.

  Further, a pair of guide shafts 18 extending forward and backward through the connecting member 17 (in this example, the joint piece 17B) are bridged between the front and rear joint frame pieces 7F and 7R. The connecting member 17 suppresses the twist between the cross link bodies 10 and 10 and facilitates the elevating operation.

  The spring means 11 urges the mounting table 4 and the carriage base 3 in a direction to approach each other. Although there is no particular limitation on the spring means 11, a coil spring, an air spring, a gas spring, or the like can be suitably used. In this example, a coil spring is used as the spring means 11. The spring means 11 is extrapolated to each guide shaft 18 and disposed between the front joint frame piece 7F and the connecting member 17 (joint piece 17B in this example). Thereby, the spring means 11 urges the other end 15b of the first link 15 to the rear side via the connecting member 17. That is, the mounting table 4 and the carriage base 3 are urged in a direction to approach each other.

  The actuator 12 lifts the mounting table 4 away from the carriage base 3 against the urging force of the spring means 11 due to the inflow of the high-pressure fluid.

  A pneumatic cylinder 20 is preferably used as the actuator 12. The actuator 12 is arranged to move the connecting member 17 horizontally with respect to the mounting table 4. Specifically, the pneumatic cylinder 20 is attached to one of the mounting table 4 and the connecting member 17, and the rod end 20 </ b> A that is horizontally expandable and contractable is mounted to the other of the mounting table 4 and the connecting member 17. In this example, the pneumatic cylinder 20 is pivotally supported by the joint frame piece 7F behind the mounting table 4, and the rod tip 20A is pivotally supported by the joint piece 17B of the connecting member 17.

  The inflow device 13 causes the high-pressure fluid to flow into the actuator 12. In this example, an air pump 21 for supplying high-pressure air to a pneumatic cylinder 20 serving as the actuator 12 is preferably used as the inflow device 13. As the air pump 21, a pump dedicated to the pneumatic cylinder 20 can be used. However, for example, the tire of the vehicle 40 can also be used as an inflator for filling the air. The air pump 21 (air pump) may be a pump that compresses air manually or an electric pump that uses a battery of an assist type bicycle.

  Such an air pump 21 can be detachably held on the carriage base 3 or the mounting table 4, for example. However, the vehicle 40 may be detachably held. The air pump 21 may be connected to the pneumatic cylinder 20 at all times, but may be configured to be connected to the pneumatic cylinder 20 only during use.

  One of the pneumatic cylinder 20 and the air pump 21 is provided with an exhaust valve (not shown) for discharging high-pressure air from the pneumatic cylinder 20.

  In such a loading truck 1, the mounting table 4 is lifted from the truck base 3 by the inflow of the high-pressure fluid into the actuator 12. Also, due to the outflow of the high-pressure fluid from the actuator 12, the urging force of the spring means 11 causes the mounting table 4 and the carriage base 3 to approach each other.

  As shown in FIG. 2, in the loading cart 1, a space H whose front side is open is formed below the placing table 4 in a state where the placing table 4 is lifted from the cart base 3 (first state Y1). You. The width of the space H is larger than the width of the loading platform 41 and the wheels 42 of the vehicle 40, and the height of the space H is set to be greater than the height up to the upper surface of the loading platform 41.

  Therefore, as shown in FIG. 6, in the first state Y1, the loading truck 1 is pushed forward without interfering with the loading platform 41 and the wheels 42 of the vehicle 40, and the loading platform 4 is moved to the upper portion of the loading platform 41. Can be positioned. In this example, the loading truck 1 can move forward to a forward movement position YF where the front end thereof comes into contact with the stopper 41A of the loading platform 41. FIG. 7 is a rear view at the forward position YF. For convenience, the vehicle 40 is drawn by a solid line, and the loading truck 1 is drawn by a one-dot chain line.

  When the high-pressure fluid flows out from the actuator 12 at the forward position YF, the mounting table 4 and the carriage base 3 are urged by the spring means 11 in a direction in which the carriage approaches the carriage 4.

  In the process of this approach, as shown in FIG. 8, the mounting table 4 first descends from the first state Y1. After the mounting table 4 is supported by being in contact with the loading platform 41, the carriage base 3 is lifted up to the second state Y2 and lifts off the ground GL.

  As described above, the loading cart 1 can easily load the loading cart 1 on the loading section 41 of the vehicle 40 with the load placed on the mounting table 4. For unloading, a high-pressure fluid flows into the actuator 12 by the inflow device 13. Thus, after the carriage base 3 descends and comes into contact with the ground GL, the mounting table 4 rises from the loading platform 41, so that it can be easily unloaded.

  In this example, the mounting table 4 includes a falling-off prevention tool 25 (shown in FIGS. 9A and 9B) that engages with the loading platform 41 to prevent the loading platform 41 from falling off.

  The stopper 25 includes a first stopper 25A disposed on the front end of the mounting table 4 and a second stopper 25B (shown in FIG. 4) disposed on the rear end of the mounting table 4. including.

  The first and second stoppers 25A and 25B have substantially the same configuration, and the first stopper 25A will be described with reference to FIGS. 9A and 9B.

  In the present embodiment, the abutting portion 22 includes a pair of standing pieces 22A protruding from the front joining frame piece 7F, and a joining piece 22B joining the upper ends of the standing pieces 22A. In a contact state between the standing piece 22A and the stopper 41A, the front surface of the joint piece 22B is flush with the front surface of the stopper 41A. The first stopper 25A is arranged on the front surface of the joint piece 22B. On the front surface of the stopper 41A, an engaging member 26 that engages with the first stopper 25A is arranged.

  In this example, the engaging tool 26 includes a lever 27 that can be tilted up and down around the axis j1 and a U-shaped hook fitting 28 that is supported by the lever 27 so as to be tiltable up and down around the axis j2. Including. The first stopper 25A includes a hook receiving portion 29 for receiving the hook fitting 28. Note that the lever 27 and the hook fitting 28 may be provided on the first drop-off preventing tool 25A, and the hook receiving portion 29 may be provided on the engaging tool 26.

  The second fall prevention device 25B is disposed on the rear surface of the rear joint frame piece 7R, and the engaging device 26 is disposed on the rear surface of the loading platform 41. Various structures other than the above structure can be adopted as the falling-off preventing device 25.

  FIGS. 10A and 10B conceptually show how the rear wheels 42 of the vehicle 40 are attached.

  As shown in FIG. 10A, in this example, the main wheel 42A is attached via a axle portion 45 between rear ends of a pair of arms 44 extending rearward from a horizontal support shaft 43. The support shaft 43 is fixed to the frame F. The axle 45 is provided with a sprocket 47 that is linked to a sprocket (not shown) on the pedal side via a chain 46. In this example, a wheel motor (not shown) for auxiliary power is built in the axle portion 45.

  As shown in FIG. 10B, the auxiliary wheels 42B are arranged on both sides of the main wheel 42A. Specifically, in the vehicle 40, the tilting operation of the first and second swing arms 48A and 48B whose rear end side is freely tiltable up and down and the tilting operation of the first and second swing arms 48A and 48B are alternately moved up and down. And interlocking means 49. Hereinafter, this mechanism may be called a synchro mechanism. Note that FIG. 10A omits the auxiliary wheel 42B and its attachment structure, and FIG. 10B omits the main wheel 42A and its attachment structure.

  The front ends of the first and second swing arms 48A and 48B are pivotally supported on both ends of the support shaft 43. Auxiliary wheels 42B are attached to the rear ends of the first and second swing arms 48A, 48B via axles.

  The interlocking means 49 includes first and second tilting members 50A and 50B having arcuate surface portions concentric with the support shaft 43, and an axis i2 in a direction orthogonal to the axis i1 of the support shaft 43 (vertical direction in this example). The first and second rotating bodies 51A and 51B, for example, each having a disk shape, and a string-shaped body 52 are provided.

  The first and second tilting members 50A and 50B are fixed to the first and second swing arms 48A and 48B, and can tilt integrally with the first and second swing arms 48A and 48B.

  The first and second rotating bodies 51A and 51B are supported by the frame F via a holder 53 so as to be rotatable around the axis i2.

  One end of the cord-shaped body 52 is fixed to the first tilting member 50A, and the arc-shaped surface portion of the first tilting member 50A, the outer peripheral surface portions of the first and second rotating bodies 51A and 51B, and the second The other end is fixed to the second tilting member 50B through the arcuate surface of the tilting member 50B. Reference numeral 54 denotes a guide roller. The string-shaped body 52 is horizontally moved between the guide roller 54 and the first and second rotating bodies 51A and 51B and between the first and second rotating bodies 51A and 51B. I support it. Reference numeral 55 denotes a spring interposed between the frame F and the holder 53, which functions as a suspension.

  In this example, the cord-like body 52 is a roller chain, and the outer peripheral surface of the guide roller 53, the outer peripheral surface of the first and second rotating bodies 51A and 51B, and the arcs of the first and second tilting members 50A and 50B. Each of the face portions has a tooth groove portion that engages with the roller chain.

  By such interlocking means 49, when one auxiliary wheel 42A is pushed up from the road surface, the other auxiliary wheel 42B can be pressed against the road surface with the same force. In other words, the contact pressure from the road surface can be kept constant on the left and right, and the vehicle can be prevented from tipping over to improve running stability. In addition, since the load can be evenly distributed to three, the load capacity can be further improved.

  In addition, the vehicle 40 of the present embodiment, which is composed of the driving main wheels 42A and the auxiliary wheels 42A and 42B using the synchronizing mechanism, has an effect that the driving structure can be simplified in addition to the above effects. it can.

  It should be noted that a so-called three-wheeled bicycle having two wheels 42 on the rear wheel side can be used as the vehicle 40. At this time, it is preferable to employ a synchronization mechanism. However, a so-called three-wheeled bicycle with a swing mechanism in which the two wheels 42 are tilted left and right around the axis in the front-rear direction, a three-wheeled bicycle with a non-swing mechanism in which the two wheels 42 are not tilted with respect to the frame, and the like. Can also be adopted.

The method of transporting the luggage W using the loading truck 1 is as follows.
(1) a vehicle stage for preparing a vehicle 40 having a carrier 41;
(2) In the loading truck 1,
(2.1) a loading stage of loading the luggage W on the mounting table 4;
(2.2) Prior to the mounting step, a high-pressure fluid flows into the actuator 12 and lifts the mounting table 4 to the first state Y1 with respect to the bogie base 3, or the high-pressure fluid flows into the actuator 12 after the mounting step. And a lifting step of lifting the mounting table 4 with respect to the carriage base 3 to the first state Y1;
(3) The loading cart 1 on which the luggage W is loaded on the mounting table 4 and the mounting table 4 is lifted to the first state Y1 is pushed forward, and the mounting table 3 in the first state Y1 is positioned above the loading section 41. Pushing stage;
(4) After the pushing step, an approach step of causing the high-pressure fluid to flow out of the actuator 12 and bringing the mounting table 4 and the carriage base 3 closer to the second state Y2 by the spring means 11 is included.

  In the approaching step, the mounting table 4 is lowered from the first state Y1 to be mounted and supported on the carrier 41, and thereafter, the carriage base 3 is lifted to the second state Y2 and lifted off the ground GL. And a second stage.

  As described above, particularly preferred embodiments of the present invention have been described in detail. However, the present invention is not limited to the illustrated embodiments, and can be implemented in various forms.

DESCRIPTION OF SYMBOLS 1 Loading cart 2 Wheel 3 Dolly base 4 Mounting table 5 Lifting tool 6 Frame 6A Side frame piece 6R Joint frame piece 10 Cross link body 11 Spring means 12 Actuator 13 Inflow tool 15 First link 15a One end 15b The other end 16 second link 16a one end 16b other end 17 connecting member 19 horizontal shaft 20 pneumatic cylinder 21 air pump 25 fall-off prevention device 40 vehicle 41 loading platform 42 wheels H space W luggage

Claims (9)

A loading cart that can be loaded and moved.
A traveling trolley base having wheels, a mounting table for mounting luggage, and an elevating device that supports the mounting table so as to be able to move up and down relative to the trolley base,
The lifting device,
A spring means for urging the mounting table and the carriage base in a direction to approach each other,
An actuator for lifting the mounting table away from the carriage base against the urging force of the spring means,
And an inflow device for flowing high-pressure fluid into the actuator,
The mounting table is lifted from the carriage base by the flow of the high-pressure fluid into the actuator,
Due to the outflow of the high-pressure fluid from the actuator, the urging force of the spring means causes the mounting table and the carriage base to approach each other,
Loading trolley.   In a state in which the placing table is lifted from the cart base, the loading cart is pushed under the placing section without interfering with the loading section and wheels of the vehicle, and the placing table is moved to the upper portion of the loading section. The loading truck according to claim 1, wherein a space that can be positioned is formed.   3. The method according to claim 2, wherein after the placing table is positioned above the loading section, the high-pressure fluid is allowed to flow out so that the placing table is supported by the loading section, and the bogie base rises from the ground. 4. Loading trolley.   4. The loading cart according to claim 2, wherein the mounting table includes a falling-off preventing device that engages with the loading platform to prevent the loading platform from falling off. 5. The actuator is a pneumatic cylinder, and the inflow device is an air pump for supplying high-pressure air to the pneumatic cylinder,
The loading truck according to any one of claims 1 to 4, wherein the pneumatic cylinder or the air pump includes an exhaust valve for discharging high-pressure air from the pneumatic cylinder.   The loading truck according to any one of claims 1 to 5, wherein the cart base includes a U-shaped frame body in a plan view in which rear ends of a pair of side frame pieces are connected by a rear joint frame piece. The elevating and lowering tool includes X-shaped cross link bodies in which intermediate portions of the first link and the second link are connected to each other with a horizontal axis on both sides in a bogie width direction,
In each of the cross link bodies, one end of the first link and one end of the second link are pivotally connected to the cart base and the mounting table, respectively.
The loading truck according to any one of claims 1 to 6, wherein the other end of the first link and the other end of the second link are attached to the mounting table and the truck base, respectively, so as to be movable back and forth. .   The loading truck according to claim 7, wherein in the cross link bodies on both sides, the other end portions of the first link are integrally connected to each other by a connecting member.   The loading truck according to claim 8, wherein the actuator is arranged to move the connecting member horizontally with respect to the mounting table.

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