JP2607303Y2 - Load lifting device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo lifting / lowering device provided at the rear of a cargo bed of a truck for collecting and delivering cargo.

[0002]

2. Description of the Related Art In recent years, moving luggage is housed in a dedicated box in which a caster foil is attached to the lower surface of a box or basket of about 1100 mm in width, 1100 mm in length and 1900 mm in height, and is transported. Established by traders and deployed on nationwide networks. Also, the same logistics company has established and operates a home delivery system on a nationwide network.

[0003] However, since a home delivery car delivers a small load to individual homes, it must be a small car having a short overall length so that it can enter even on narrow roads. On the other hand, a moving exclusive vehicle requires a large lifting device (table lifter) in order to load and unload the above-mentioned dedicated box, and is a large vehicle having a long overall vehicle length.

It is impossible to provide a large-sized lifting device in the former small-sized home delivery vehicle because the function of the home delivery vehicle is impaired. In the latter case, when moving small packages in and out of the rear door without using the rear elevating device, the elevating device is jammed, which is inconvenient. In addition, in recent times with severe traffic congestion and strict parking regulations, short turnability is poor, and speedy collection and delivery processing is required for home delivery,
It is totally inappropriate and cannot be used. In other words, load lifting equipment is used when lifting heavy loads from the ground to the loading platform, so it is indispensable for moving vehicles that carry large heavy loads, but it is essential for home delivery vehicles that collect and deliver small loads. Was not needed.

However, since the vehicles are different, the garage, the sales office, and the driver are different, and the same company operates different vehicles independently in the same area. That is the current situation.

[0006]

Problems to be Solved by the Invention As a cargo lifting / lowering device used in the above-mentioned moving-only vehicle, FIGS.
And A to G types as shown in FIG. Note that the same functional components will be described with the same reference numerals.

A, B, and E types (FIGS. 9, 10, and 1)
In the case of 3), the lift table 103 is connected to the parallel link 1
The lift table 103 is flipped up or down behind or in front of the rear door 102 of the luggage compartment 101 when the lift device is stored. If the lift table 103 is not operated and leveled, the luggage compartment 101
There is a drawback that you cannot take in and out the luggage inside.

In the case of the C type (FIG. 11),
Since the lift table 103 is retracted and stored under the floor by the parallel link 104, the length L
When the length is increased, the dimension ROH (rear overhang) from the rear wheel tire 106 to the rearmost portion of the vehicle body becomes longer, and there is a disadvantage that the total length of the vehicle body becomes longer. This is the same for the D type (FIG. 12) in which the floor of the ROH part moves up and down.

In the case of the F type (FIG. 14), since the lift table 103 is folded and stored under the floor during traveling, the storing operation is complicated. In particular, the lift table 10
If the number 3 is large, the weight becomes heavy, which is dangerous and difficult to handle, and there are drawbacks that the parallel link 104 is present and the ROH cannot be shortened too much.

The G type (FIG. 15) is a modification of the A type, in which the lift table 103 is stored by vertically falling below the rear door 102. When the lift table 103 is made larger, the lift table 10
Since the ground clearance H at the tip of No. 3 is insufficient, lift table 1
03 has the disadvantage that it cannot be made too large.

An object of the present invention is to have a large lift table capable of lifting and lowering a large heavy load, mount it on a small vehicle body with a short ROH, and open the rear door without raising / lowering operation. It is an object of the present invention to provide a cargo lifting / lowering device capable of loading / unloading and easy operation.

[0012]

In order to solve the above-mentioned problems, a load lifting device according to the present invention includes a column disposed on both sides of a rear end of a luggage compartment, a support member provided on a chassis frame, and One or more sets of first and second arm members constituting a parallel link mechanism, wherein one end of the support is rotatably provided at the other end of the support member at a predetermined center distance; Or, a driving means for driving the first or second arm member, a connecting member for connecting the lower sides of the two columns, and a slit corresponding to the chassis frame or a portion corresponding to the vertical joist; And a lift table that slides.

[0013] In this case, the first and second arm members may be configured such that the distance between the shafts on the side of the support member is shorter than the distance between the axes on the side of the column, so that the column is substantially vertical when the column is raised. When it descends, it can be characterized by inclining backward. Further, a rolling member rotatably provided on the connecting member and in rolling contact with the lift table may be provided. Furthermore, a suspending member for suspending the back of the lift table from the support column may be provided. At this time, the length of the hanging member can be adjusted.

[0014]

According to the present invention, columns are provided on both sides of the rear end of the luggage compartment, and the columns are raised and lowered by a parallel link mechanism comprising a support member and first and second arm members, and both columns are connected by a connecting member. Since the lift table with the slit is inserted so as to be slidable back and forth, it can be retracted and stored while avoiding the chassis frame or the vertical joist under the floor of the vehicle. Therefore, it can be attached to a conventional vehicle without any improvement. In addition, the swinging motion of the first and second arm members causes the support column to move up and down while maintaining a substantially vertical position outside the gate post. Therefore, at the ascending position (top dead center), the front end of the lift table is separated from the rear end of the bed by the clearance. No contact and stop, so loading and unloading can be done smoothly.

Further, the rolling table allows the lift table to be in rolling contact with the connecting member, so that the lift table can be easily taken in and out. Furthermore, since the suspension member is provided, the lift table can be kept substantially horizontal in the pulled-out state. At this time, if the length of the suspension member can be adjusted, the lift table can be raised or lowered.

On the other hand, since arm members projecting rearward and supporting the lift table are provided on both sides of the connecting member,
The lift table can be simply and reliably supported without using any hanging members on both sides of the lift table.

[0017]

Next, the present invention will be described in more detail by way of examples. 1 to 3 are views showing an embodiment of a cargo lifting device according to the present invention. FIG. 1 is a perspective view, FIG. 2 is a side view, and FIG. 3 is a rear view. As shown in FIGS. 1 to 3, the automobile 1 is a vehicle having a vehicle weight of about 3 tons used for home delivery or the like.
Those having a height of about 30 mm and a total height of about 3110 mm are preferably used. This automobile 1 has a gate post 5
The rear door 3 is provided on the gate post 51 via a hinge 51b.

At the lower portion of the rear surface of these portal columns 51, there are formed vertically elongated openings 51a. Left and right support 5
2 is provided corresponding to each gate post 51, and is vertically translated by an upper arm 53 and a lower arm 54,
When the top dead center is reached, each gate post 5 passes through the opening 51a.
Housed in one. The left and right columns 52 are connected by a cylindrical connection bar 55 arranged in the horizontal direction via a bracket 52c provided at the lower end of the rear surface.

The lift table 57 is for loading and lowering the luggage, and is inserted on the connecting bar 55 so as to be able to be pulled out. The lift table 57 is a vertical joist 1c
Slits 57b to cut into the web part
Are formed. The chain 56 is connected to the lift table 5
7 is suspended, and its lower end is fixed to an anchor 57 a of the lift table 57. The upper end of the chain 56 is hooked on a T-shaped hole 52d formed on the upper rear surface of the column 52. The length of the chain 56 can be adjusted by hooking the link near the upper end in the T-shaped hole 52d one pitch at a time, and hooking the link.
Thereby, the inclination angle of the lift table 57 can be set. Therefore, the lift table 57 can be adjusted upward or downward. For example, even when there is a step between the loading platform and the platform, the lift table 57 can be used as a crossing plate.

The support bar 60 is horizontally fixed to a chassis frame 58 of the vehicle 1 via a bracket 59. Brackets 61A and 61B made of two plates are vertically fixed to both left and right ends of the support bar 60.
The bracket 61 (61A, 61B), the support column 52, the upper arm 53, and the lower arm 54 constitute a parallel link mechanism. That is, the upper arm 53 is
Is rotatably mounted via a pin 52a, and one end of a lower arm 54 is rotatably mounted via a pin 52b. Also, upper arm 5
3 has a bracket 61A,
61B while being rotatably supported in the lower arm 5B.
4 is a bracket 61A,
It is rotatably supported in 61B.

The lift cylinder 62 is for driving the parallel link mechanism. The upper end of the lift cylinder 62 is rotatably supported in the brackets 61A and 61B by a pin 62a. It is rotatably supported at the end. Therefore, by extending and retracting the lift cylinder 62, the support column 52 is translated while keeping it substantially vertical, and the lift table 57 is moved via the connecting bar 55 to the table position (A) and the table position (FIG. Move up and down between C).

The connecting bar 55 connects the left and right columns 51 at the lower ends and supports the front end of the lift table 57. In this embodiment, a cylindrical member (round pipe) is used. . The connection bar 55 is provided with a collar 55a rotatably mounted on the outer periphery thereof, and the lift table 57 is in rolling contact with the collar 55a, so that it can be smoothly put in and out.

FIG. 4 to FIG. 6 are views showing a lock mechanism used in the load lifting device according to the embodiment. The lock mechanism 63 is provided below the lift table 57,
Lever 64 rotatably provided on lift table 57
A connecting rod 65 having one end pivotally supported by the lever 64 and transmitting the driving force of the lever 64; a lock claw 66 connected to the other end of the connecting rod 65 and rotatably attached to the lift table 57; A spring 67 for urging the pawl 66 in the counterclockwise direction in FIG.
The lock receiving plate 68 is engaged with the lock receiving plate 68.

The lock mechanism 63 rotates the lever 64 in the direction of the arrow, pulls out the lift table 57 with the lock claw 66 retracted, and moves the lever 64 at the pulled-out position.
The lock claw 66 rotates counterclockwise in FIG. 5 by the urging force of the spring 67 to engage with the lock receiving plate 68, and locks the lift table 57 to the connection bar 55.

Next, the operation of the cargo lifting / lowering apparatus according to this embodiment will be described. When using the elevating device of this embodiment, first, the rear door 3 of the automobile 1 is pivoted about 26 degrees around a hinge 51b provided at an outer corner behind the gate post 51.
Open 0 ° to make it fully open. Next, at the table position (B) in FIG. 2 or FIG. 3, the lock mechanism 63 (see FIG. 4) stored below the lift table 57 is removed, and the lift table 57 is pulled out to the rear of the vehicle body 2.

When the lift table 57 is pulled out to the maximum, the front end of the lift table 57 rests on the support bar 60 and does not protrude forward from the rear surface of the column 52. At this time, it is automatically locked by the lock mechanism 63 and does not return. In this state, the upper end of the chain 56 is inserted into the T-shaped hole 52d of the support post 52, and the lift table 5
7 is lifted and supported.

Next, the lift cylinder 62 is extended, and the upper dead center (the left side in FIG. 3) of the movement area of the upper arm 53 and the lower arm 54, that is, the lift table 57 is moved to the table position (A). At this position, as shown in FIG. 2, the lift table 57 is at the same position as the floor plate 1a.

Subsequently, the load in the vehicle body 2 is placed on the lift table 57, and the lift cylinder 62 is contracted. When the lift cylinder 62 is contracted, the columns 52 supported by the upper arm 53 and the lower arm 54 are lowered while maintaining parallelism (parallel link mechanism), and reach the table position (C). During this movement, the support column 52 is kept vertical, so that the lift table 5
7 keeps a horizontal state, and a load does not slip and fall.

Conversely, when loading a load, the load can be placed on the lift table 57, moved from the table position (C) to the table position (A), and the load can be loaded into the vehicle body 2.

Next, when the lift table 57 is stored, the lift cylinder 57 is used to lift the lift table 57.
Is moved to the table position (B), the lock mechanism 63 is unlocked, and the lift table 57 is pushed forward to the table position (B ′) shown in FIG. Then, the lock mechanism 63 is operated and fixed at a position where the lift table 57 does not protrude rearward from the support bar 60, and the storage of the lift device is completed. At this time, since the inserted lift table 57 has the slit 57b, it can be stored without interfering with the chassis frame 1b or the vertical joist 1c of the automobile 1.

Since the lift table 57 can be stored in front of the floor under the tire 1d of the car 1,
The lift table 57 can be made sufficiently long as needed. Even in such a case, the front end of the lift table 57 is supported by the support bar 60 and the rear portion is supported by the chain 56. Therefore, the strength of the lift table 57 is limited to the case of cantilever support as in other types of lifting devices. Compared to, it is sufficiently strong and can achieve weight reduction.

FIG. 7 is a perspective view partially showing a second embodiment of the cargo lifting apparatus according to the present invention. Note that parts that perform the same functions as in the above-described first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

In the first embodiment, the lift table 57
Has been described in a state of being supported substantially horizontally, but when the load is a box with caster wheels or the like, it is preferable that the load be lowered rearward when landing. However, when the lift table 57 is lowered backward, the caster wheel-equipped box may roll down when ascending and descending. Therefore, in the second embodiment, the box with caster wheels is structured so that it can be moved up and down safely and easily.

In the lifting device according to the second embodiment, the lift table 57 is provided with the road plate 68 and the caster stopper 69. The road plate 68 and the caster stopper 69 are provided on the lift table 57 so as to be rotatable around shafts 68b and 69b, respectively. The road plate 68 and the caster stopper 69 are provided with slits 57 of the lift table 57.
A slit 68a, 69a is formed at a position corresponding to a. The caster stopper 69 is urged by a spring 70 via a lever 71 in a rising direction (the state shown in FIG. 7). When storing the lift table 57, the road plate 68 is lifted and the lift table 57 is lifted.
When the caster stopper 69 is placed upside down, the caster stopper 69 is pressed by the weight of the road plate 68, and is sandwiched between the upper surface of the lift table 57 and the road plate 68.

By adjusting the length of the chain 56, at the time of landing (the bottom dead center of the upper arm 53 and the lower arm 54), the upper surface of the lift table 57 is lowered rearward, and the rear end of the road plate 68 is easily formed. Land on. The road plate 68 hits the abutment (stopper) 57c of the lift table 57 and stops at a rearward downward angle. When loading the box with caster wheels containing the load, the caster wheels passing over the road plate 68 move the caster stopper 69 to the lift table 5.
7 and push over, but after getting over, the caster stopper 69 rises by the spring 70,
The caster wheels are prevented from rolling due to the downward slope of the lift table 57.

FIG. 8 is a schematic view partially showing a third embodiment of the cargo lifting apparatus according to the present invention. In the first and second embodiments, the position of the pin 61a serving as the axis of the upper arm 53 or the lower arm 54 is A, the position of the support lever 60 is B, the position of the pin 52a is C, and the position of the pin 52b is D. Then, the straight line AB = the straight line CD = the straight line C′D ′, and the straight line AB, the straight line CD, and the straight line C′D ′ become substantially parallel. Therefore, when the lift table 57 is moved up and down on the caster wheel box, if it is lowered rearward at the time of landing, the lift table 57 will be lowered rearward even in the state of the table position (A).

In the third embodiment, the straight line AB is changed to the straight line A'B
Like slightly shorter. That is, the position of the pin 61a of the upper arm 53 is slightly shifted downward and attached.
Therefore, the straight line A'B and the straight line CD are substantially parallel, but the straight line A'B and the straight line C "D 'are not parallel, and the point C" is shifted behind the point C'. Therefore, even if the straight lines A'B and CD are parallel to the gate post 51, the straight line C "D 'is not parallel at the lower end, and the upper part of the gate post 51 falls backward. But, it lands at the same time as the connecting bar 52.

As described above, in the third embodiment, at the table position (A), the lift table 57 is parallel to the floor plate 1a, and at the table position (C), the lift table 57
The upper surface is lowered rearward and the rear end easily lands.

FIGS. 16 to 18 are views showing a fourth embodiment of the load lifting device according to the present invention, wherein FIG. 16 is a top view, FIG. 17 is a rear view, and FIG. 18 is a side view. . In the first embodiment, the rear end of the lift table 57 is suspended by the chain 56. In the fourth embodiment, as shown in FIG. 16, an L-shaped bracket 80 is attached to the support 52. And a connecting bar 55, and a roller 82 is further rotatably attached to the rear end side. A grip 8 is provided at the front end of the lift table 57.
2 are provided, and the connection bar 55 is hooked by the grip 82. According to the fourth embodiment, the attachment / detachment of the chain 56 is not required, and the side surface of the lift table 57 is opened, so that cargo can be handled from the side.

FIG. 19 is a perspective view partially showing a fifth embodiment of the cargo lifting apparatus according to the present invention. In the fifth embodiment, a rail 84 having a U-shaped cross section is attached to a bracket 52c provided at the lower end of the left and right support columns 52 by a pin 85 so as to be rotatable in a horizontal plane. When the lift table 57 is stored under the floor plate 1a, the rail 84 is rotated so as to be parallel to the connecting bar 55, as shown in the left half of FIG. 19, and embraces the connecting bar 55. When pulling out the lift table 57, as shown in the right half of FIG.
Is rotated so as to be substantially perpendicular to the connecting bar 55, and the outermost bone 57 c of the lift table 57 is placed inside the rail 84.
And pull it out so that the rail 84 serves as a guide. Therefore, the lift table 57 is connected to the rail 8
4 so that there is no deviation in the left-right direction.

According to the fifth embodiment, the lift table 5
The outermost bones 57c installed on the left and right of the
Because it is supported by, it is hard to bend. Therefore,
The lift table 57 is supported by the connecting bar 55 at the front end and by the transverse bone 57d of the lift table 57 at the rear end, and both ends are supported, which is advantageous in strength. Also,
When the lift table 57 is used, the lift table 57 can be pulled out only by opening the rail 84 approximately 90 degrees to the left and right, so that the weight of the lift table 57 is applied to the rail 84, and there is no need to pull out the lift table 57 while lifting it. Further, when the lift table 57 and the rail 84 are stored (see the left half state in FIG. 19),
The rail 84 serves as a step, making it easy for workers to get in and out of the loading platform. In the fifth embodiment, the grip 82 as shown in the fourth embodiment is unnecessary because the front end of the lift table 57 does not float from the connecting bar 55 regardless of the position of the load.

FIG. 20 is a side view partially showing a sixth embodiment of the cargo lifting apparatus according to the present invention. In the sixth embodiment, a ball caster 86 is provided at the rear end of the side surface of the lift table 57. A guide 87 and a guide groove 88 are provided inside the rail 84 to guide left and right and up and down.
It falls to 8 and is automatically locked. Therefore, the lock mechanism (see FIG. 6) for pulling out the lift table 57 can be omitted. According to such a locking means, even if the rear end of the lift table 57 lands first and then the rail 84 lands, the lift table 57 escapes without exerting an excessive force. Note that a roller may be used instead of the ball caster 86.

By using the above-described cargo lifting device, a moving truck with a lifting device which is currently widely used in Japan and a small-sized home delivery truck which is very often used exclusively for parcel collection and delivery are used. Can also be used. That is, if the small home delivery vehicle is equipped with the elevating device of the present invention, the small home delivery vehicle can also collect and deliver moving luggage in the operation area. Therefore, the provision of the cargo lifting device according to the present invention to small home delivery vehicles, and the fact that the home delivery vehicles can partially take over the moving field, means that the current transportation industry suffers from a serious labor shortage and worsening traffic conditions. The economic effects they give are immense.

Further, the lifting device according to the present invention is fixed only to the chassis frame, and the entire lifting device is configured separately from the vehicle body, so that the lifting device is mounted in a chassis state, and the , Body can be mounted. Therefore, as long as a space for accommodating the columns is secured, the lifting device of the present invention can be attached regardless of the shape of the body (for example, a fire truck, a tank truck, a mixer truck, etc.).

[0045]

As described above in detail, according to the present invention, since the two supporting columns are connected by the connecting member and the lift table having the slit is inserted so as to be able to slide back and forth, the chassis frame under the vehicle floor or It can be retracted and stored, avoiding vertical joists. Therefore, it can be attached to a conventional vehicle without any improvement.

Further, the column is moved up and down by a parallel link mechanism comprising a support member, first and second arm members, and the first and second arm members swing.
Since the support column moves up and down while maintaining a substantially vertical position outside the gate post, the front end of the lift table comes into contact with the rear end of the cargo bed floor at the ascending position (top dead center) without any gap, and loading and unloading can be performed smoothly.

Further, the rolling table allows the lift table to be in rolling contact with the connecting member, so that the lift table can be easily taken in and out.

Further, since the suspension member is provided, the lift table can be kept substantially horizontal when pulled out. At this time, if the length of the suspension member can be adjusted, the lift table can be raised backward or lowered backward.

On the other hand, since arm members projecting rearward and supporting the lift table are provided on both sides of the connecting member,
The lift table can be supported from the lower side or the lateral side, and both sides of the lift table can be opened without using a hanging member, which is advantageous in terms of strength. Further, since the arm member serves as a guide, there are effects such as easy access to the lift table.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a cargo lifting device according to the present invention;

FIG. 2 is a side view showing the elevating device according to the first embodiment.

FIG. 3 is a rear view showing the lifting device according to the first embodiment.

FIG. 4 is a view showing a lock mechanism used in the lifting device according to the first embodiment.

FIG. 5 is a view partially showing the lock mechanism shown in FIG. 4;

FIG. 6 is a view partially showing the lock mechanism shown in FIG. 4;

FIG. 7 is a perspective view partially showing a second embodiment of the cargo lifting device according to the present invention;

FIG. 8 is a schematic view partially showing a third embodiment of the load lifting device according to the present invention;

FIG. 9 is a diagram showing a conventional example (A type) of a cargo lifting device.

FIG. 10 is a view showing a conventional example (B type) of a cargo lifting / lowering device.

FIG. 11 is a view showing a conventional example (C type) of a cargo lifting / lowering device.

FIG. 12 is a diagram showing a conventional example (D type) of a cargo lifting / lowering device.

FIG. 13 is a view showing a conventional example (E type) of a cargo lifting / lowering device.

FIG. 14 is a view showing a conventional example (F type) of a cargo lifting device.

FIG. 15 is a view showing a conventional example (G type) of a cargo lifting / lowering device.

FIG. 16 is a top view showing a fourth embodiment of the load lifting device according to the present invention.

FIG. 17 is a rear view of the fourth embodiment of the cargo lifting device according to the present invention;

FIG. 18 is a side view showing a fourth embodiment of the load lifting device according to the present invention.

FIG. 19 is a perspective view partially showing a fifth embodiment of the cargo lifting apparatus according to the present invention;

FIG. 20 is a side view partially showing a sixth embodiment of the cargo lifting apparatus according to the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile 1a Packing floor 1c Vertical joist 1d Tire 1e Horizontal joist 2 Body 3 Rear door 51 Gate post 52 Support post 53 Upper arm 54 Lower arm 55 Connection bar 56 Chain 57 Lift table 58 Chassis frame 59 Bracket 60 Support bar 61 Bracket 62 Lift cylinder

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-218437 (JP, A) JP-A-61-249845 (JP, A) Fully open 63-59045 (JP, U) Really open 1842 (JP, U) Japanese Utility Model 4-1223836 (JP, U) Japanese Utility Model 3-40132 (JP, U) Japanese Utility Model Application Hei 2-26954 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B60P 1/44-1/46

Claims (3)

(57) [Scope of request for utility model registration] 1. A lorry equipped with a lifting device, wherein the lorry is disposed between the luggage floor and a chassis frame of the lorry, which directly or indirectly supports the luggage floor. The lifting device comprises a lift table, a holding member that holds the lift table slidably in the front-rear direction, and a moving mechanism that moves the holding member. The space between the chassis frames is open rearward at the vertical joist height. When the lift table is at the vertical joist height, the lift table slides on the holding member to load the lift table. Move forward and backward between the storage position at least partially located at the vertical joist height below the room floor plate and the lifting / lowering start position where the lift table is located behind the luggage compartment. The moving mechanism moves the holding member so that the lift table moved to the elevating start position moves up and down at least between the vertical joist height and the substantially ground level. At the time of movement between the position and the elevating start position, the lift table is provided so as not to interfere with the vertical joist, and at least a front portion of the lift table is divided into left and right directions at intervals.
A lorry having a slit in the front-rear direction. 2. The truck according to claim 1, wherein the slit is provided between a front end of the lift table and a position near a rear end of the lift table, and the lift table is located forward of the position near the rear end. Has a shape that is separated into a plurality at intervals in the left-right direction by the slit, and is continuous in the left-right direction on the rear side from the position near the rear end. A pair of struts and a connecting member for connecting the lower portion of the struts to the left and right, wherein the lift table is supported on the connecting member so as to be slidable in the front-rear direction, and at the lifting start position A truck having a front end supported from below by the connecting member. 3. The lorry according to claim 1, wherein the lorry has a pair of hollow pillars provided at the left and right ends of the rear end of the luggage, which support the rear door of the luggage compartment. The holding member includes a pair of columns, and a coupling member that connects the lower portions of the columns to the left and right and supports the lift table so as to be slidable in the front-rear direction. The moving mechanism moves the columns. A parallel link mechanism provided at a lower portion of a chassis frame of the lorry, wherein the parallel link mechanism has a position where the lift table has a vertical joist height and the strut is housed in the gate post; The support member moves between the position where the connecting member is at the ground level behind the luggage compartment, and the pair of gate posts is a passage for the support column when the support column moves between the inside and the outside of the gate post. At least partially Truck, characterized in that has an opening opened toward.