JP2002114075A - Cargo receiving platform elevating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate various work before and after conveyance of a cargo receiving platform elevating device by conveying a parallel link side and a cargo receiving platform as one body without separating them. SOLUTION: A mounting bracket 6 and a parallel link 12 are provided on a support frame 3. A connection link 15 and the cargo receiving platform 17 are connected to a tip of the parallel link 12. A cutout groove 24 of a range allowing entrance of a part of the parallel link 12 is formed on a base end of the cargo receiving platform 17. A lower link 11 and the connection link 15 are connected by a detachable connection pin 19. When the connection pin 19 is removed, the cargo receiving platform 17 can rotate to a state overlapping the parallel link 12 and the cargo receiving platform can be supported by the mounting bracket 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transporting a single loading / unloading device and a simple operation of transporting the loading / unloading device. Also, the present invention relates to a loading tray lifting device which can be performed by a simple operation.

[0002]

2. Description of the Related Art Generally, when assembling a loading cradle lifting device to a vehicle, the loading cradle lifting device is transported from a manufacturing place of the loading cradle lifting device to a mounting place for assembling to a vehicle, and a mounting place for assembling the same. The assembly work is carried out at to complete it. By the way, the transport posture of the conventional loading tray lifting device separates the parallel link side and the loading tray,
Each is transported on a separate transport pallet. The reason is that the receiving platform has a structure that can rotate from the horizontal state to the standing state, but the parallel link and the receiving table are connected in any of the horizontal state, the standing state, and the intermediate state. If it is attempted to convey it while it is transported, the width and height of the conveyance posture become very large and a large dead space is generated, and waste is caused at the time of conveyance, so the conveyance is performed in a separated state as described above. .

[0003]

However, when the parallel link side and the receiving stand are separated and conveyed as described above, a separation operation is first required in a step before the conveyance, and a separation operation is required in a step after the conveyance. There is a drawback that an assembling work with the receiving table is required. In addition, there is also a problem that the number of articles to be conveyed becomes two at the time of conveyance, and an extra space is required in a storage space before conveyance and a storage space at the time of conveyance. Therefore, the present invention is to provide a loading / unloading device that can facilitate the work before and after the transport of the loading / unloading device and reduce the extra space during the storage and the transportation before the transportation. .

[0004]

Means for Solving the Problems According to the present invention, claim 1 is provided.
In the above, mounting members are fixed to the left and right ends of a support frame that can be mounted on a vehicle body, and parallel links composed of an upper link and a lower link are provided on each of the mounting members so as to be vertically rotatable, and connected to the ends of the parallel links. A load receiving platform elevating device that supports a link, supports a loading platform on the connection link or the upper link, and vertically moves the loading platform by rotating the parallel link up and down by driving means; A notch groove is formed at the base side of the loading tray to allow a part of the parallel link to enter, and when transporting the loading tray elevating device, the loading tray is centered on a pivot point between the connection link or the upper link and the loading tray. , So that a part of the parallel link can be inserted into the notch groove, and the receiving table can be placed above the parallel link.

[0005] As a result, since the transport can be carried out without separating the parallel link side and the load receiving side, work before and after the transport can be facilitated, and no extra space is required at the time of storage and transport. . According to claim 2, mounting members are fixed to left and right ends of a support frame that can be mounted on a vehicle body, and a parallel link including an upper link and a lower link is provided on each of the mounting members so as to be vertically rotatable, and an end of the parallel link is provided. Part, a connecting link is pivotally supported, a loading tray is pivotally supported on the connecting link or the upper link, and an upright assisting device is connected between the connecting link and the loading tray to assist rotation in a loading tray rising direction, In a loading tray lifting device capable of vertically moving the loading tray by rotating the parallel link up and down by driving means, a notch groove in which a part of the parallel link can be inserted is formed on the base side of the loading tray. Further, the connection between the lower link and the connection link can be released or the connection between the upright assisting device and the connection link can be released, and when the loading / unloading device is transported, the connection of the connection link to the lower link is performed. At the time of removal or disconnection of the upright assisting device with respect to the connecting link, the receiving platform is rotated about the pivot point between the connecting link or the upper link and the receiving platform, and a part of the parallel link is inserted into the cutout groove. In addition, the receiving table can be placed above the parallel link.

[0006] With this, it is possible to facilitate the operation of standing up and storing the load receiving table in a state of being attached to the vehicle together with the above-described effects. In the third aspect, mounting members are fixed to left and right ends of a support frame that can be mounted on a vehicle body, and a parallel link including an upper link and a lower link is provided on each of the mounting members so as to be vertically rotatable, and an end of the parallel link is provided. Part, a connecting link is pivotally supported, a loading tray is pivotally supported on the connecting link or the upper link, and an upright assisting device is connected between the connecting link and the loading tray to assist rotation in a loading tray rising direction, In the loading / unloading device which is provided with a driving means for rotating the parallel link and can be mounted on a transport pallet, a cutout groove in which a part of the parallel link can be inserted is formed on the base side of the loading pedestal, and The link between the link and the connecting link can be released or the connection between the upright assisting device and the connecting link can be released, and when the loading / unloading device is transported, the connection of the connecting link to the lower link is also released. Alternatively, when the stand-up assisting device is disconnected from the connecting link, the receiving tray is rotated around the pivot of the connecting link or the upper link and the receiving tray, and a part of the parallel link is inserted into the cutout groove. In addition, the loading tray can be supported by a transport pallet in a state of being superimposed on the parallel link.

[0007] Thus, together with the above-described effects, the receiving table can be independently supported in the transport state, and it is possible to reliably prevent the receiving table from rattling during the transport. According to claim 4, mounting members are fixed to left and right ends of a support frame that can be mounted on a vehicle body, and a parallel link including an upper link and a lower link is provided on each of the mounting members so as to be vertically rotatable, and an end of the parallel link is provided. Part, a connecting link is pivotally supported, a loading tray is pivotally supported on the connecting link or the upper link, and an upright assisting device is connected between the connecting link and the loading tray to assist rotation in a loading tray rising direction, In a loading tray lifting device capable of vertically moving the loading tray by rotating the parallel link up and down by driving means, a notch groove in which a part of the parallel link can be inserted is formed on the base side of the loading tray. Further, the connection between the lower link and the connection link can be released or the connection between the upright assisting device and the connection link can be released, and when the loading / unloading device is transported, the connection of the connection link to the lower link is performed. At the time of removal or disconnection of the upright assisting device with respect to the connecting link, the receiving platform is rotated about the pivot point between the connecting link or the upper link and the receiving platform, and a part of the parallel link is inserted into the cutout groove. In addition, the loading tray is overlapped above the parallel link, and a part of the loading tray is supported by an arbitrary member of the loading tray lifting device.

[0008] Thus, since the conveyer can be conveyed while the load receiving table is connected to the parallel link side, the work before and after the convey is facilitated. Further, an extra member for supporting the load receiving table in the transporting posture can be eliminated. In claim 5,
An arbitrary member of the loading stand elevating device is a mounting bracket.

[0009] In addition to the above-described effects, the positioning for connecting the load receiving table and the parallel link side when the load receiving table is deployed becomes easy, and the mounting operation to the vehicle can be performed quickly due to the presence of the mounting bracket. Work can be performed more efficiently, and work efficiency can be improved. According to claim 6, mounting members are fixed to left and right ends of a support frame that can be mounted on a vehicle body, and a parallel link including an upper link and a lower link is provided on each of the mounting members so as to be vertically rotatable, and an end of the parallel link is provided. Part, a connecting link is pivotally supported, a load receiving stand is pivotally supported on the connecting link or the upper link, and a power device box containing a power device is attached to a part of the support frame. The loading support can be raised and lowered in a horizontal state by connecting an upright assisting device that assists the rotation of the loading support in the upright direction and rotating the parallel link up and down by driving means driven by the power device. In the loading / unloading device, a notch groove in which a part of the parallel link can be inserted is formed on the base side of the loading tray, and furthermore, the connection between the lower link and the connection link can be released or connected with the erecting assist device. When transporting the loading / unloading device, the loading tray is rotated around a pivot point between the connection link or the upper link and the loading tray, and a parallel link is formed in the notch groove. And the receiving tray is overlapped above the parallel link, and a part of the receiving tray is supported by the power unit box.

[0010] With this configuration, it is possible to superimpose the load receiving table on the parallel link side in a state of being connected to the parallel link side as the transfer posture, thereby making it possible to make the transfer posture compact and to simplify the work before and after the transfer. it can. Furthermore, since the power unit can be transported with the unit integrated,
Operations such as separation and connection of piping and the like between the power unit and the drive unit can be omitted.

According to a seventh aspect of the present invention, an optional member of the lifting / lowering device is a mounting member or a support frame. Thus, even in a case where the mounting bracket is detached during the transfer, the transfer posture can be maintained without requiring an extra member for supporting the load receiving table. Further, even when the height of the mounting bracket is lower than the height of the mounting member or the like, the same effect can be exhibited.

According to an eighth aspect of the present invention, an arbitrary member of the lifting / lowering device is a parallel link. As a result, the standing angle of the parallel link can be increased, and the projected length of the parallel link is shortened. Therefore, the upper area of the transport pallet on which the parallel link side is mounted can be reduced, and the transport pallet can be reduced. The transport pallets can be manufactured at low cost, and the storage space for the transport pallets can be reduced.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a loading / unloading device 1 for a vehicle 2
FIG. FIG. 5 shows a state in which the load receiving pedestal elevating device 1 is set in a transfer state and mounted on a transfer pallet. First, the loading / unloading device 1 will be described. Reference numeral 3 denotes a support frame having a length substantially equal to the width of the vehicle 2. The support frame 3 has a structure in which two members having a box-shaped cross section are integrally stacked vertically. Although not shown, the center of the lower member is notched but removed so that a part of a spare tire (not shown) provided in the vehicle 2 can be inserted.

A box-shaped connecting member 4 extending rearward (right side in FIG. 2) and a flat mounting member 5 extending upward are fixed to both ends of the support frame 3, respectively. A pair of front and rear mounting brackets 6 are erected on the upper surface of the connecting member 4. By fixing the mounting brackets 6 to the vehicle body 7 of the vehicle 2, the support frame 3 can be fixed to the vehicle body 7. I have. As shown in FIG. 3, an upper portion of the swing link 8 is pivotally supported by the mounting member 5, and a base of the upper link 9 is pivotally supported at an intermediate portion of the swing link 8, and an upper portion is pivotally supported at a lower portion of the swing link 8. An end portion of a lifting cylinder 10 which is a driving means for vertically swinging the link 9 is pivotally supported. At the end of the support frame 3, the base of the lower link 11 is pivotally supported via a separate mounting member 5 so as to be below and outside the upper link 9. And constitute the parallel link 12. The upper link 9 includes an upper link main body 9A in which a pair of left and right link plates are integrated, and a single plate upper link auxiliary member 9B welded to one side surface of the front end of the upper link main body 9A. A round pipe-shaped reinforcing member 12 is connected between a pair of left and right upper link bodies 9A at the tip of the upper link body 9A. A stopper 13 is provided on the mounting member 5 for restricting the swing link 8 from swinging clockwise more than a predetermined time. Reference numeral 14 denotes a restricting member provided between the upper link main bodies 9A of the upper link. The restricting member 14 comes into contact with the mounting member 5 and restricts the upward rotation of the parallel link 12 by a predetermined amount or more.

As shown in FIG. 4, a connecting link 15 is pivotally supported at the tip of the upper and lower links 9 and 10, so that the upper and lower links 9 and 10 can maintain a parallel state.
The connecting shaft 16 that supports the upper link 9 and the upper portion of the connecting link 15 is also supported by a reinforcing member 18 formed at the base of the receiving table 17, whereby the upper link 9, the connecting link 15, and the receiving table are supported. 17 are connected to each other, and each of them can rotate vertically about the connection shaft 16. As shown in FIGS. 18 and 20, the lower link 11 and the lower portion of the connection link 15 are pivotally supported by a connection pin 19, and a retaining pin 21 is inserted into a hole 20 formed at an end of the connection pin 19, By fixing the retaining pin 21 to the connecting link 15 with a bolt 22, the connecting pin 19 is prevented from coming off.
That is, by removing the bolt 22 and pulling out the retaining pin 21, the connecting pin 19 can be removed and the lower link 11 can be easily removed from the connecting link 15.

The loading table 17 has a flat upper surface to facilitate loading of a load, and a lower surface of a reinforcing frame 17 for reinforcement.
A is fixed as a pair of left and right. A reinforcing girder 23 forming a part of the loading table 17 is formed at the base of the loading table 17 in the width direction with an inverted L-shaped cross section, the upper part is a flat part 23A and forms a part of the receiving surface, and the outer part of the lower part is formed. A mounting surface 23B of the reinforcing frame 17A is formed, and a reinforcing member 18 is mounted inside the lower portion. The lower part of the reinforcing girder 23 is in contact with the lower part of the connecting link 15 so that the loading table 17 can be kept horizontal.

A notch groove 24 is formed in the upper part of the reinforcing girder 23 as shown in FIG. 15, so that when the loading table 17 is turned 180 degrees upward from the horizontal state,
When the upper link 9 is rotated in a direction to overlap with the upper side, a part of the upper link 9, that is, the upper link auxiliary member 9B does not enter the cutout groove 24 so as not to hinder the rotation of the load receiving table 17. By the way, the notch groove 24 is formed at a position through which the goods to be unloaded and unloaded by the loading tray elevating device 1 passes, and the width of the notch groove 24 is limited to the upper link auxiliary member 9.
Since it is slightly larger than the thickness of B, the casters such as luggage, especially containers, do not enter.

An erecting cylinder 25, which is an erecting assisting device, is pivotally supported between the middle of the connecting link 15 and the reinforcing frame 17A of the receiving table 17, and the erecting cylinder 25 extends to lift the receiving table 17 and reduce it. To return the load receiving table 17 to a horizontal position. In particular, as shown in FIGS. 18 and 19, the pivotal support with the connecting link 15 is pivotally supported by the connecting pin 26, and a retaining pin 28 is inserted into a hole 27 formed at an end of the connecting pin 26, and The fixing pin 28 is fixed to the connecting link 15 with a bolt 29 so that the connecting pin 26 does not come off. That is, bolt 2
9 is removed and the retaining pin 28 is pulled out, thereby removing the connecting pin 26 and connecting the connecting cylinder 25 to the connecting link 15.
It can be easily removed from.

Next, the positional relationship between the mounting bracket 6 and the load receiving table 17 will be described. The upper end of the mounting bracket 6 is horizontal, and the load receiving table 17 is stopped at a predetermined position (FIG. 12) during ascent and descent. When it is rotated upward by about 180 degrees in this state, as shown in FIG. 5, the load receiving table comes in contact with the upper end of the mounting bracket 6 in an inverted state, and the load receiving table 17 is supported in a substantially horizontal state. By the way, the reason for stopping the load receiving table 17 at a predetermined position in the middle of elevating is determined by performing positioning with an arbitrary jig.

Reference numeral 30 denotes a bumper for preventing rushing.
6 is divided into three so that the left and right parallel links 12 can pass through as shown in FIG. 6, the center bumper 30 is attached to the end of the connecting member 4, and the left and right bumpers 30 project from the support frame 3. It is attached to a bumper stay 31. Reference numeral 32 denotes a transport pallet for transporting the loading tray elevating device 1.
Is transported from the manufacturing place to the mounting place where the loading / unloading device 1 is mounted on the vehicle 2. The transfer pallet 32 is, as shown in FIGS.
A, a support post 32B and a fork hole 32C. The pallet body 32A has a flat plate-like rectangular shape,
The upper area is the same width as the support frame 3 and the parallel link 1
2, and the upper surface of the pallet body 32A has a flat loading surface for supporting the support frame 3 side. The receiving column 32B is erected at a position near one side of the pallet main body 32A, and a receiving portion 32D having a semicircular cross section is formed at the upper end of the receiving column 32B. The receiving portion 32D is rotated in a state where the receiving table 17 is rotated by about 180 degrees and is brought into contact with the mounting bracket 6.
When the supporting member 3 is supported by the support frame 3, the support frame 3 and the receiving table 17 are in a substantially horizontal state. The fork hole 32C is provided in a fork lift fork 33.
Is inserted into the pallet main body 32A to move the transport pallet 32, and the pallet main body 32A is opened and penetrated on the side surface of the pallet main body 32A.

FIG. 21 to FIG. 24 show another embodiment, in which a power device box 34 which is a part of the loading / unloading device 1 is fixed to the upper end of one end of the support frame 3 with bolts 35.
The power unit box 34 has a power unit (not shown) for operating the elevating cylinder 10 and the like as driving means.
Is housed. The upper surface of the box 34 is flat,
It is slightly higher than the upper end of the mounting bracket 6. Thus, when the loading table 17 is rotated about 180 degrees, the loading table 17 contacts the box 34 and the loading table 17 is rotated.
Can be supported. According to this structure, the power unit and the box for power unit 34 can be transported while being integrated as a part of the loading / unloading device, so that the pipe 34A can be separated from the lifting cylinder 10 and the like as the driving means. The connection work can be omitted.

FIG. 25 shows another embodiment. When the upper end of the mounting member 5 is flattened and the load receiving table is rotated by about 180 degrees, the load receiving table contacts the upper end of the mounting member or a cushioning member such as rubber. Is to be supported through. With such a structure, the mounting bracket 6 and the power device box 34
Is not mounted, for example, mounting bracket 6
May need to be welded to the vehicle body 7 first, or the power unit may need to be transported by separate means from the viewpoint of damage prevention. In such a case, extra members are required. Without being rotated, the receiving table 17 can be rotated and supported by the mounting member 5 in a substantially horizontal state.

FIGS. 26 to 28 show another embodiment, in which an I-shaped auxiliary member 36 is provided upright at the center of the support frame 3.
The load receiving table 17 is supported when the load receiving table 17 is rotated by 180 degrees by the upper support portion 36A of the auxiliary member 36. That is, the receiving table 17 can be indirectly supported by the support frame 3. The lower support portion 36B of the auxiliary member 36 is in contact with the upper surface of the support frame 3, and is connected between the lower plate 36 and the backing plate 37 in contact with the lower surface of the support frame 3 with bolts 38 and nuts 39. 38,3
The auxiliary member 36 is fixed to the support frame 3 by tightening the support frame 9 to clamp the support frame 3. According to this structure, the load receiving table 17 is supported by the support frame 3 having inherently high strength, so that no extra load acts on the mounting bracket 6 and the mounting member 5, and the mounting member 5 It is not necessary to increase extra strength only to support the receiving table 17 against the like.

FIG. 29 shows another embodiment in which a support portion 9C is formed on a part of the upper link 9 and when the load receiving table 17 is rotated about 180 degrees, the load receiving table 17 is moved to the supporting portion of the upper link 9. At 9C, the receiving table 17 can be supported in a substantially horizontal state. According to this structure, the transport state can be formed while the upper link 9 is sufficiently rotated upward, so that the projection length of the parallel link 12 is reduced and the upper area of the transport pallet 32 is reduced. Become like

FIGS. 30 and 31 show another embodiment of the erecting assist device, in which a spring 40 is used instead of the erecting cylinder 25. FIG.
The spring 40 is urged in a direction in which the load receiving stand rises, so that the load receiving stand 17 can be raised with a small amount of labor. That is, one end of the spring 40 is engaged with the reinforcing frame 17 </ b> A, and the other end is engaged with the connection pin 26 fixedly protruded in the middle of the connection link 15. With this structure, when the load receiving table 17 is in a horizontal state, the spring 40 is compressed by the weight of the load receiving table 17 and urges the load receiving table 17 in the rising direction. In some cases, it can be erected with little effort.

FIG. 32 and FIG.
An erecting cylinder 25 which is an erecting assist device when rotating by 0 degrees
Alternatively, the state in which the spring 40 is disconnected from the connection link 15 and the load receiving table 17 is rotated is shown. FIG.
In FIG. 19, the lower link 11 and the connecting link 15 are connected and the connecting pin 26 is removed to separate the lower part of the connecting link 15 from the upright cylinder 25 as shown in FIG. Can be done. FIG. 33 shows the use of a spring 40 as an erecting assisting device. With the lower link 11 and the connecting link 15 still connected, the spring 40 is removed from the connecting pin 26 to rotate the load receiving table 17 about the connecting shaft 16. Can be moved.

FIG. 34 to FIG. 36 show another embodiment of the transport pallet.
A support member 32B having a support post 32B having a flat support portion 32F and a guide portion 32G on the other side.
When the loading device 2E is erected and the loading table lifting device 1 is mounted, the connecting member 12 provided on the upper link 9 is supported by the receiving portion 32D of the receiving column 32B, and the receiving table 17 is received by the receiving member 32E.
Is supported by the receiving portion 32F. Also,
Since the receiving member 32E is disposed at a position surrounded by the support frame 3 and the parallel link 12, when the loading pallet lifting device 1 is placed on the transport pallet 32, the support frame 3G is guided by the guide portion 32G of the receiving member 32E. The transport pallet 32
After completion, the receiving member 32E interferes with the support frame 3, the parallel link 12, and the like, so that the displacement of the loading / unloading device 1 can be restricted. 37 and 38 show another embodiment in which the upright storage device is omitted. That is, the load receiving table 17 is connected to the parallel link 12 side by the connecting shaft 16, and a part of the load receiving table 17 comes into contact with the contact portion 42 of the connecting link 41 so that the horizontal state of the load receiving table 17 can be secured. Has become. Further, when the loading tray is to be stood up and stored, it is performed manually, but it is also possible to provide a torsion bar or a coil spring at the center of rotation so that less human power is required. With this structure, when the transport posture is set, as shown in FIG. 38, the load receiving table 17 can be rotated while being suspended by a crane or the like, and the load receiving table 17 can be overlapped on the parallel link side. ing. At this time, a part of the parallel link enters into the notch groove on the loading table 17 side.

In the embodiment, the lifting cylinder is provided on each of the left and right upper links. The same operation and effect can be obtained by transmitting the rotating power to the parallel link via the shaft. Also,
In the embodiment, the upright cylinders are provided on the left and right loading tray side reinforcing frames as the upright assisting devices. However, it is not necessary to provide a pair of right and left, but it is sufficient to provide them on either one.

Further, in the embodiment, the receiving table, the upper link and the connecting link are integrally connected by a connecting shaft. However, the receiving table is independently connected to the upper link by a shaft support or a connecting link. You may make it pivotally support. In that case, the connecting shaft would be mounted separately.
Further, in the embodiment, the bumper is provided on the support frame as the loading / unloading device, but the bumper does not necessarily need to be attached to the support frame, and the supporting member projects from the vehicle body separately from the loading device. It is also possible to make it attach to.

The operation of the present invention having the above-described structure will be described below. First, the loading tray elevating device 1 is manufactured at a manufacturing location, and after confirming the operation of the loading tray elevating device 1, it is mounted on the transport pallet 32. In the mounting procedure, first, the loading tray 17 is stopped at a position where the loading tray 17 is raised to a predetermined position, and in this state, the loading tray lifting device 1 is suspended by a crane or the like, and the transport pallet 32 is placed below the loading tray lifting device 1 ( (FIG. 12). In this case, the load receiving table 17 is in a horizontal state, but the upright cylinder 25 may be extended to suspend the load receiving table 17 in an upright state.

12 is lowered from the state shown in FIG. 12 in the direction of the arrow so that the lower end of the swinging link 8 or the lower end of the lifting cylinder 10 contacts the loading surface of the pallet main body 32A and the upper link 9 The connecting member 12 on the side is received in contact with the receiving portion 32D of the support post 32B (FIG. 13).
Thereafter, the connecting pin 19 that supports the lower link 11 and the connecting link 15 is pulled out. That is, as shown in FIG. 20, the bolt 22 is removed from the connecting link 15, the retaining pin 21 is pulled out from the connecting pin 19, and the connecting pin 19 is connected to the connecting link 1.
5 and the lower link 11, and the end of the lower link 11 is lowered to the loading surface of the pallet main body 32A as shown by the chain line in FIG.

Alternatively, without pulling out the connection pin 19, the connection pin 26 connecting the upright cylinder 25 is removed as shown in FIG. 19, and the upright cylinder 25 is separated from the connection link 15. In that case, the lower link 11 is the connecting link 15
There is no need to lower to the loading surface because it is still connected to the loading surface.
On the other hand, the upright cylinder 25 slightly fluctuates, but the reinforcing frame 1
Since it is stored in 7A, there is no problem when it is moved.

In this state, the load receiving table 17 is moved about 18 degrees by a human or a crane around a shaft fulcrum of a connecting shaft 16 connecting the upper link 9 and the reinforcing member 18 on the load receiving table 17 side.
By turning it upward by 0 degrees, the load receiving table 17 is brought into contact with the upper end of the mounting bracket 6 in a state of being overlapped on the parallel link 12 side (FIG. 5). At this time, a part of the reinforcing girder 23 at the base of the load receiving table 17 tries to interfere with the upper link 9, particularly the upper link auxiliary member 9 B, but the notch groove 24 is formed on the flat portion 23 A of the reinforcing girder 23.
Is formed, the upper link auxiliary member 9B does not enter the notch groove 24 and does not hinder the rotation of the load receiving table 17. In the state where the rotation of the load receiving table 17 is completed, the connecting link 15 is connected to the load receiving table 17 via the upright cylinder 25, so that the connecting link 15 also rotates integrally with the load receiving table 17. . On the other hand, the upright cylinder 25
Is separated from the connecting link 15, the connecting link 15 remains on the parallel link 12 side as shown in FIG. Also, instead of the upright cylinder 25, a spring 40 is used.
FIG. 33 shows a case where is used.

5 is secured to the transport pallet 32 by any means from the state shown in FIG. 5, and in this state, the fork 33 of the forklift is connected to the fork hole 32 of the transport pallet 32.
C, and lifts the transport pallet 32 and loads it on a freight truck or the like as a transport means. At that time, the loading platform lifting device 1
Indicates that the amount of protrusion from the transport pallet 32 on the receiving post 32B side is small,
Is opened to the receiving column 32B side, so that the fork 33 of the forklift can be brought close to the end of the transport pallet 32. When the fork 33 is inserted into the fork hole 32C, the fork 33 is moved to the center of gravity of the loading / unloading device 1. Can be fully inserted up to a position exceeding, and can be moved by a forklift in a stable state.

When the loading on the freight car or the like is completed, the freight car or the like is transported to the place where the loading / unloading device 1 is mounted. After arriving at the mounting location, the transport pallet 32 is lowered, and then the load receiving pallet lifting device 1 is replaced with a trolley (not shown) that can be lifted and lowered from the transport pallet 32. After being put on the trolley, the load receiving table 17 is rotated by a crane or the like to be in a horizontal state or an upright state, and is held by the crane. In that state, lower link 1
1 and the connecting link 15 are separated, the lower link 11
When the connecting link 15 and the standing cylinder 25 are separated from each other, the connecting link 15 and the standing cylinder 25 are connected to the connecting pin 26 when the connecting link 15 and the standing cylinder 25 are separated. To connect. that time,
Since the receiving table 17 is connected to the parallel link 12 and the connecting shaft 16, the lower link 11 and the connecting link 15 are aligned or the upright cylinder 25 and the connecting link 1 are connected.
5 is very easy to align. Further, in the latter case, the operation of lifting the lower link 11 is not required, and the operation can be facilitated.

When the connection between the side of the parallel link 12 and the side of the loading platform 17 is completed, the truck is moved, the loading platform lifting device 1 is aligned with the rear mounting position of the vehicle 2, and the mounting bracket 6 is fixed to the vehicle body 7. With this, the mounting of the loading / unloading device 1 is completed. When loading and unloading goods in the vehicle 2 on which the loading / unloading device 1 is mounted, as shown in FIGS. 1 and 2, the standing cylinder 25 is reduced from the state shown by the two-dot chain line in FIG. Is horizontal (solid line in FIG. 1), and then the parallel link 12 is moved up and down by the lifting cylinder 10 to
Up and down. In particular, when the load receiving table 17 is lowered and a part of the load receiving table 17 comes into contact with the ground, if the elevating cylinder 10 is further reduced, the swinging link 8 swings in the direction away from the stopper 13 as shown in FIG. 17 is tilted as shown in FIG.
The loading operation of the carts with casters and the like on the receiving table 17 is facilitated.

[0037]

As described above, according to the first aspect of the present invention, a notch groove is provided in a part of the load receiving table, and the load receiving table elevating device is rotated without separating the load receiving table from the parallel link. As a result, it is possible to carry the goods without separating the receiving table, and it is possible to eliminate the need for extra spaces before, after, and during carrying. Also, the work before and after the transfer can be simplified.

According to a second aspect of the present invention, a notch groove is provided in a part of the load receiving table, and the connection between the lower link and the connecting member can be released or the connection between the standing support device and the connecting member can be released. Can be rotated to the upper side of the parallel link without being separated from the side of the parallel link so that the stacking state can be achieved. Can be achieved.

According to a third aspect of the present invention, a notch groove is provided in a part of the loading tray, and the lower link can be disconnected from the connecting member, or the standing assist device can be disconnected from the connecting link.
Further, the loading tray is rotated to a position above the parallel link to be in an overlapped state, and a part of the loading tray is supported by the receiving member of the transport pallet. The support can be supported, and it is possible to reliably prevent the receiving table from rattling during the transportation.

According to a fourth aspect of the present invention, a notch groove is provided in a part of the receiving table, and the lower link can be disconnected from the connecting member, or the erecting auxiliary device can be disconnected from the connecting link.
Furthermore, since the loading tray is rotated above the parallel link and is placed in an overlapped state, and the loading tray is supported by a part of the loading / lifting device, the loading tray is supported in the transport position together with the above-described effect. Extra members can be eliminated.

According to the fifth aspect of the present invention, the load receiving table is rotated to support the load receiving table on the mounting bracket which is a part of the load receiving table elevating device. Positioning for connection with the parallel link side is facilitated. Further, the mounting work to the vehicle can be performed quickly due to the presence of the mounting bracket, and the work efficiency can be improved.

According to the sixth aspect of the present invention, the load receiving table is rotated to support the load receiving table in the box for the power unit, so that the efficiency of the work before and after the transfer can be improved, and the piping between the power unit and the driving means is further improved. Since the transfer can be carried out while the connection is maintained, the preparation work before and after the transfer can be simplified. According to the seventh aspect, since the loading tray is rotated to support the loading tray on the mounting member or the support frame, an extra member for supporting the loading tray is not required, and an inexpensive transport pallet can be used. Can be. Furthermore, even when it is necessary to remove the mounting bracket and transport, the transport attitude can be maintained without requiring an extra member for supporting the load receiving table. Also, the same effect can be exerted when the mounting bracket is lower than the mounting member or the like.

In the eighth aspect, since the load receiving table is rotated to support the load receiving table on the parallel link, an extra member for supporting the load receiving table is not required, and an inexpensive transport pallet can be used. Can be. Furthermore, since the loading stand can be piled up by increasing the standing angle of the parallel link, the projection length of the parallel link is shortened, and the length of the transport pallet can be shortened. And the storage space for the transport pallets can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall view of a vehicle equipped with a loading tray elevating device.

FIG. 2 is a diagram showing a state in which a receiving table is grounded on the ground.

FIG. 3 is an enlarged view of a parallel link base.

FIG. 4 is an enlarged view of a connecting portion between the parallel link and the receiving tray.

FIG. 5 is an overall view showing a transfer state of the loading tray elevating device.

FIG. 6 is an AA diagram of FIG. 5;

FIG. 7 is a BB diagram of FIG. 5;

FIG. 8 is a CC diagram of FIG. 6;

FIG. 9 is a DD diagram of FIG. 6;

FIG. 10 is an EE diagram of FIG. 6;

FIG. 11 is an FF diagram of FIG. 6;

FIG. 12 is an assembling diagram in which a loading pallet lifting device is loaded on a transport pallet.

FIG. 13 is a diagram showing a state in which the loading / unloading device is loaded on a transport pallet.

FIG. 14 is a GG diagram of FIG. 13;

FIG. 15 is an enlarged perspective view of a cutout groove portion of the loading tray.

FIG. 16 is an enlarged sectional view of a connecting portion between the parallel link and the loading tray in a horizontal state of the loading tray.

FIG. 17 is an enlarged sectional view of a connecting portion between the parallel link and the loading tray when the loading tray is rotated by 180 degrees.

FIG. 18 is an enlarged view of a connecting link.

19 is a sectional view taken along the line HH in FIG. 18;

FIG. 20 is a sectional view taken along the line II of FIG. 18;

FIG. 21 is a view showing a state of conveyance of a loading tray elevating device according to another embodiment.

FIG. 22 is a JJ diagram of FIG. 21;

FIG. 23 is an overall view of the unfolding stand shown in FIG. 21;

24 is a KK diagram of FIG.

FIG. 25 is a view showing a state of conveyance of a loading tray elevating device according to another embodiment.

FIG. 26 is a transfer state diagram of the loading / unloading device in another embodiment.

FIG. 27 is an overall view of the unloading table shown in FIG.

FIG. 28 is an enlarged sectional view taken along line LL of FIG. 27;

FIG. 29 is a transfer state diagram of a loading tray elevating device in another embodiment.

FIG. 30 is a partially enlarged view in which a spring is used as a standing assist device.

FIG. 31 is a partially enlarged view of FIG. 30;

FIG. 32 is a partially enlarged view in which the connecting link and the upright cylinder are separated from each other and the load receiving table is rotated.

FIG. 33 is a partially enlarged view showing a state where a connection link and a spring are separated from each other, and the receiving tray is rotated.

FIG. 34 is a transfer state diagram of the loading / unloading device in another embodiment.

FIG. 35 is an assembly diagram when the loading / unloading device lifting / lowering device of FIG. 34 is loaded on a transport pallet.

FIG. 36 is an MM diagram of FIG. 35;

FIG. 37 is a partially enlarged view of a connecting portion between a parallel link and a loading tray of the loading tray lifting device according to another embodiment.

FIG. 38 is a diagram illustrating a state in which the transfer posture is set in FIG. 37;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 loading tray lifting device 3 support frame 5 mounting member 6 mounting bracket 9 upper link 10 lifting cylinder 11 lower link 12 parallel link 15 connection link 17 loading tray 19 connection pin 24 cutout groove 25 upright cylinder 32 transport pallet 34 box for power device

Claims (8)

[Claims] An attachment member is fixed to left and right ends of a support frame attachable to a vehicle body, and a parallel link comprising an upper link and a lower link is provided on each of the attachment members so as to be vertically rotatable,
A connecting link is pivotally supported at an end of the parallel link, a loading tray is pivotally supported at the coupling link or the upper link, and the loading link is raised and lowered in a horizontal state by rotating the parallel link up and down by driving means. In the receiving platform lifting device, a notch groove in which a part of the parallel link can be inserted is formed on the base side of the loading platform, and when transporting the loading platform lifting device,
In a state in which the loading tray is rotated around a pivot point between the connecting link or the upper link and the loading tray, a part of the parallel link is inserted into the cutout groove, and the loading tray is overlapped above the parallel link. Loading / unloading device for lifting and lowering a receiving tray. 2. A mounting member is fixed to left and right ends of a support frame that can be mounted on a vehicle body, and a parallel link including an upper link and a lower link is provided on each of the mounting members so as to be vertically rotatable,
Erecting assistance for pivotally supporting a connecting link at an end of the parallel link, supporting a loading table on the connecting link or the upper link, and assisting rotation of the loading link between the connecting link and the loading table in the upright direction. In a loading / unloading device capable of moving the loading / unloading platform in a horizontal state by connecting the apparatus and rotating the parallel link up and down by driving means, a cut-off portion in which a part of the parallel link can enter a base side of the loading platform. Form a notch,
Further, the connection between the lower link and the connection link can be released or the connection between the upright assisting device and the connection link can be released. When the loading / unloading device is transported, the connection of the connection link to the lower link is released or the connection link is disconnected. By releasing the connection of the erecting assist device with respect to, the load receiving platform is rotated around the pivot of the connection link or the upper link and the load receiving platform, and a part of the parallel link is inserted into the cutout groove and the load receiving platform is moved. A loading tray raising / lowering device characterized in that it can be placed in a state of being superimposed on a parallel link. 3. A mounting member is fixed to left and right ends of a support frame that can be mounted on a vehicle body, and a parallel link including an upper link and a lower link is provided on each of the mounting members so as to be vertically rotatable,
Erecting assistance for pivotally supporting a connecting link at an end of the parallel link, supporting a loading table on the connecting link or the upper link, and assisting rotation of the loading link between the connecting link and the loading table in the upright direction. A device for connecting the devices, a driving means for rotating the parallel link is provided, and in a loading tray elevating device which can be mounted on a transport pallet, a notch groove in which a part of the parallel link can be inserted is provided on the base side of the loading tray. Formed, and furthermore, the connection between the lower link and the connecting link can be released or the connection between the upright assisting device and the connecting link can be released, and when the loading / unloading device is transported, the connection of the connecting link to the lower link is released. Alternatively, upon release of the connection of the erecting assisting device to the connection link, the receiving table is rotated around the pivot point between the connecting link or the upper link and the receiving table, and the parallel link is formed in the notch groove. Receiving platform lifting device being characterized in that to be able to support the transport pallet in a state of superposed receiving platform above the parallel link causes enter a part of. 4. A mounting member is fixed to left and right ends of a support frame that can be mounted on a vehicle body, and a parallel link including an upper link and a lower link is provided on each of the mounting members so as to be vertically rotatable,
Erecting assistance for pivotally supporting a connecting link at an end of the parallel link, supporting a loading table on the connecting link or the upper link, and assisting rotation of the loading link between the connecting link and the loading table in the upright direction. In a loading / unloading device capable of moving the loading / unloading platform in a horizontal state by connecting the apparatus and rotating the parallel link up and down by driving means, a cut-off portion in which a part of the parallel link can enter a base side of the loading platform. Form a notch,
Further, the connection between the lower link and the connection link can be released or the connection between the upright assisting device and the connection link can be released. When the loading / unloading device is transported, the connection of the connection link to the lower link is released or the connection link is disconnected. By releasing the connection of the erecting assist device with respect to, the load receiving platform is rotated around the pivot of the connection link or the upper link and the load receiving platform, and a part of the parallel link is inserted into the cutout groove and the load receiving platform is moved. A loading tray raising / lowering device, wherein a part of the loading tray is supported by an arbitrary member of the loading tray lifting / lowering device by being superimposed on the parallel link. 5. The lifting device according to claim 4, wherein an arbitrary member of the lifting device is a mounting bracket. 6. A mounting member is fixed to left and right ends of a support frame that can be mounted on a vehicle body, and a parallel link comprising an upper link and a lower link is provided on each of the mounting members so as to be vertically rotatable,
An end of the parallel link supporting a connecting link, a supporting base supported on the connecting link or the upper link, and a power device box containing a power device mounted on a part of the support frame; An upright assisting device for assisting the rotation of the load receiving stand in the direction in which the load receiving stand rises is connected between the load receiving stand and the load receiving stand. In the loading / unloading device which can be lifted and lowered in a state, a cutout groove in which a part of the parallel link can be inserted is formed on the base side of the loading tray, and further, the connection between the lower link and the connection link can be released or the erecting assist device and When the connection with the connecting link can be released, and the carrier receiving / lifting device is transported, the carrier is rotated around a pivot point between the connecting link or the upper link and the carrier, and the notch groove is formed. Superposed above the parallel link the receiving platform causes enter a part of the parallel link, receiving platform lifting device, wherein a part of said receiving platform and to be supported by the power unit boxes. 7. An apparatus according to claim 4, wherein an arbitrary member of said apparatus is an attachment member or a support frame. 8. An apparatus according to claim 4, wherein an arbitrary member of said apparatus is a parallel link.