JPH08230548A - Load table operating device for vehicle with load box - Google Patents

Abstract

PURPOSE: To operate a load table easily and accurately by stopping a lifting support body at a middle position by a stopper in cooperation of the load table with a stop control device which controls a lifting drive device during the lifting of a lifting support body for the storage of the load table. CONSTITUTION: A stop control-device (safety device) 9 to stop a lifting support body (slider) S urgently during lifting is arranged at the lower rear end of a load box 1. When it is detected that foreign matter is adhered to a sensing bar 9a installed on the safety device 9, a stop switch Sw1 is turned off through a turning arm 9b. The safety device 9 controls a lifting drive device (hydraulic cylinder) C so that the slider S can be stopped occasionally during the lifting. Also, when a load table T is stored erectedly, it is turned erectedly and raised to a specified middle lifting position, and thus a stopper part 7 of a control arm A is pressed against the sensing bar 9a of the safety device 9, turning off the stop switch Sw1 and stopping the extension of the hydraulic cylinder C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load carrier actuating device for a vehicle with a luggage box, in particular, a luggage box on a vehicle body, an elevating support provided on the luggage box so as to be able to move up and down, and an elevating drive for the elevation support. A lifting drive device, a load pedestal that is pivotally supported by the lifting support and is rotatable up and down between a substantially horizontal upright position and a substantially vertical upright storage position, and the load receiving base from the upright storage position to the upright storage position. And a storage device that can be forcedly rotated.

[0002]

2. Description of the Related Art In a load carrier actuating device of the type described above, the load carrier in the down position when the lift support is at its highest position is provided for the convenience of loading luggage in a plurality of upper and lower stages in the cargo box. It is well known that the height of the floor is higher than that of the floor.

[0003]

However, in such a conventionally known device, when the load carrier is erected and stowed when the lifting / lowering support is raised to the maximum, the center of gravity of the rear part of the load box due to the position of the load carrier at the high position. Is relatively high, which impairs the running stability of the vehicle. To avoid this inconvenience, in the past, when raising and retracting the load receiving tray, the lifting support is being raised (that is, at the intermediate position). I'm trying to stop by visual inspection. For this reason, the worker must keep an eye on the lifting operation of the cradle when standing up and retracting the cradle, which causes a problem of inconvenience and inefficiency. , The position of the luggage box side element of the fastening device for locking the loading tray at the retracted position and the element of the loading tray side are likely to be displaced from each other, and the fastening device cannot be used depending on the degree of the displacement. Sometimes. Further, particularly in a vehicle provided with a standing guide member on the vehicle body side that cooperates with a regulation arm on the side of the cargo receiving stand to store the cargo receiving stand in a standing position, the standing guide is provided in consideration of variations in the ascending / descending position. There is also a problem that the length of the member must be made longer than necessary.

The present invention has been made in view of the above circumstances, and it is possible to accurately and automatically stop the elevating and lowering support body at a predetermined elevating and lowering intermediate position when the load receiving stand is to be stored upright. An object of the present invention is to provide a load carrier actuating device in a vehicle with a load box that has a simple structure that can be solved.

[0005]

In order to achieve the above object, the inventions of the respective claims are directed to a packing box on a vehicle body, an elevating support provided on the packing box so as to be movable up and down, and the elevating support is driven up and down. An elevating and lowering drive device, a load pedestal that is pivotally supported by the elevating and lowering support body, and is rotatable up and down between a substantially horizontal upright position and a substantially vertical upright storage position, and the load receiving base from the upright position to the upright storage position. In a load carrier actuating device in a vehicle with a load box, the load receiver is provided with a storage device that can be forcedly rotated, and the load carrier in the lying position is higher than the floor surface of the load container when the lift support is at the highest position. The vehicle body is provided with a stop control device capable of controlling the lifting drive device so as to stop the support body at any time during its ascent, and the load carrier is a stop control device in the process of raising the lift support body for storing the load carrier. Cooperate to stop the lift support at the predetermined lift intermediate position Characterized in that it comprises a stopper portion.

Further, in addition to the above-mentioned features, the invention according to claim 2 is characterized in that the storage device is supported by a load receiving base and is movable between a predetermined overhang position and a retreat position.
A guide member fixed to the vehicle body for engaging the regulation arm in the projecting position and raising and lowering the load receiving stand in the middle of the ascending / descending of the elevating / lowering support body, wherein the stopper portion is provided on the regulation arm. According to the invention of claim 3, in addition to the above respective features, the stop control device detects that a foreign object is sandwiched between the load carrier and the vehicle body while the elevating support is being raised, and the elevating and lowering device detects the foreign matter. In addition to the structure of the invention of claim 3, the safety device is a safety device for making an emergency stop of the support body. There is a sensing unit capable of mechanically detecting that a foreign object is sandwiched between the load receiving base and the vehicle body, and the stopper unit is attached to this detecting unit so that the load receiving base can be erected and rotated to the upright storage position and can be lifted and lowered. So that it comes into contact when the It is characterized in.

[0007]

According to the above-mentioned structure of the invention of each claim, when the supporting body is raised to a predetermined lifting intermediate position in the process of raising the raising / lowering support for storing the receiving stand, the stopper portion on the side of the receiving stand is provided. And the raising control of the lifting support automatically stops in cooperation with the stop control device on the vehicle body side, so the worker can monitor the raising movement of the cradle all the time and determine the raising stop position visually. It is not necessary to do so, and the ascending stop position is always constant, so that there is no variation in the ascending stop position as in the prior art.

Further, according to the above-mentioned structure of the invention of claim 2, since the stopper portion is provided on the regulating arm of the load carrier storage device, when the load carrier does not need to be stored upright, it is normally used. By placing the regulating arm at the retracted position, the stopper portion of the arm can be easily released from the stop control device without difficulty. Moreover, it is not necessary to set the effective length of the guide member of the storage device to be longer than necessary in consideration of the variation in the rising and stopping position of the load receiving base.

Further, according to the above-mentioned structure of the invention of claim 4, a safety device for detecting the presence of a foreign object between the load receiving platform and the vehicle body while the lifting support is being raised and for emergency stopping the lifting support is provided. By the mechanical contact between the sensing unit and the stopper unit, it is possible to accurately and automatically stop the ascending operation when the load receiving tray is stored.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. 1 to 7 show a first embodiment of the present invention, FIG. 1 is an overall side view of a vehicle, and FIG. 2 is a perspective view showing a rear portion of a cargo box in a state in which a cargo cradle is folded down. Three
2 is a partially cutaway enlarged cross-sectional view seen from the arrow 3 of FIG. 2 (a sectional view taken along the line 3-3 of FIG. 4), and FIG. 5 is a cross-sectional view (cross-sectional view taken along arrow 5-5 in FIG. 6) similar to FIG. 3, showing a standing storage state of the cargo tray, and FIG. 6 is a rear view seen from arrow 6 in FIG. FIG. 3 is a control circuit diagram of the above embodiment. FIG. 8 is a perspective view similar to FIG. 2, showing a second embodiment of the present invention.

A cargo box 1 is mounted on a vehicle body F of a cargo handling vehicle V as a vehicle, and a rear end opening 1a of the cargo box 1 is mounted.
A shutter 2 is provided as an opening / closing means. A pair of left and right hollow guide columns G extending vertically on the left and right sides of the opening 1a are fixedly provided at the rear end of the luggage box 1, respectively. These guide columns G may also be used as columns at the left and right rear end corners of the luggage box 1, or may be configured separately from the columns of the luggage box.

In each of the guide columns G, a movable column Gi that is long in the vertical direction is fitted so as to be movable up and down.
In i, a slider S as an elevating support is vertically supported by a plurality of guide rollers R so as to be elevatable. When the slider S reaches a predetermined relative upper limit position with respect to the movable strut Gi in the ascending process, the slider S can engage with the upper end of the movable strut Gi and ascend integrally with the movable strut Gi, while descending process. Initially, the movable column Gi is lowered together with the movable column Gi, but when the movable column Gi comes into contact with the ground and stops descending, the movable column Gi can be independently lowered to a predetermined relative lower limit position. Since such a structure in which the slider S is supported by the guide column G via the movable column Gi so as to be able to move up and down is conventionally known, a detailed description thereof will be omitted.

A hydraulic cylinder C functioning as a lifting drive device for driving the slider S up and down is installed along a rear end frame e of a vehicle body F extending left and right along the lower edge of the rear end opening 1a of the luggage box 1. ing. The piston rod portion 3 of the hydraulic cylinder C is interlockingly connected to the left and right sliders S through a known interlocking mechanism I which is formed by appropriately combining pulleys and wires, that is, the left and right sliders S extend from the hydraulic cylinder C. When actuated, the same amount rises at the same time along the guide column G, and when the cylinder C contracts, the same amount simultaneously descends along the guide column G. Since the structure of the interlocking mechanism I that interlocks the left and right sliders S with each other and interlocks with the hydraulic cylinder C in this manner is also known in the art, a detailed description thereof will be omitted.

Each of the sliders S is provided with a supporting frame portion Sa which is continuously exposed to the outside through vertical slits 4 and 4'formed in the rear walls of the corresponding guide columns G and movable columns Gi, respectively. The base end portion of the rectangular flat plate-shaped load receiving base T is pivotally supported on the support frame portion Sa via a pivot p _{1 in the} left-right direction, and a substantially horizontal lying position X shown in FIGS.
It is configured so that it can be raised and lowered and rotated between a substantially vertical standing storage position Y shown in FIGS. When the slider S is at the highest position, the lying position X'of the loading tray T at that time is set to be higher than the floor surface 1f of the packing box 1 as shown in FIG. Convenience is achieved when loading luggage such as above in a plurality of upper and lower stages.

Between the cargo box 1 and the cargo receiving tray T, there is provided a lashing device L for locking the cargo receiving tray T in the standing storage position Y to the cargo box 1. The lashing device L includes hooks 5a fixed to the left and right sides of the rear end of the luggage box 1 (guide struts G in the illustrated example), and the base portion rotatably and horizontally in the left and right edge portions of the load receiving tray T. An L-shaped lock lever 5b slidably supported within a predetermined range and a spring 5c for urging the lever 5b toward the center of the load receiving tray T are provided. Further, a shallow engaging recess (not shown) at which the lever 5b can be engaged and disengaged is provided at a proper position on the side edge of the load receiving tray T, and the intermediate portion of the spring-biased lever 5b is shallowly fitted into this recess. By engaging the lever 5b, it is possible to hold the lever 5b at a predetermined storage position (see FIGS. 1, 2 and 4) near the inside of the vehicle body and along the side edge of the load receiving tray T. By this holding, the lever 5b and the hook are hooked. The load receiving tray T can be rotated upright without interfering with 5a. After the loading tray T is erected, move the lever 5b to the spring 5c.
The lever 5b is pulled out in a direction away from the load receiving tray T against the urging force of the lever and locked in the locking groove of the hook 5a.
Since the fastening device L is brought into the lock operation state by rotating the container about 180 degrees, it is possible to reliably lock the loading tray T in the standing storage position (see FIGS. 5 and 6). Note that unlocking may be performed in the reverse order of the above.

Further, between the vehicle body F and the load receiving tray T, there is provided a storage device D capable of forcibly rotating the load receiving tray T from the lying position X to the standing storage position Y. This storage device D is a loading tray T
Is supported by the control arm A that is movable between a predetermined overhanging position M and a retracted position N, and the regulating arm A at the overhanging position M is engaged while the slider S is moving upward to move the load receiving tray T. The guide member 6 is fixed to the vehicle body F so as to be erected and rotated, and the guide member 6 is composed of a strip-shaped cam plate that is inclined stepwise backward and upward in the illustrated example.

In the illustrated example, the restricting arm A has a base end portion axially supported by the load receiving tray T via a pivot axis p ₂ in the left-right direction, and is swingable around the pivot axis p ₂ as shown in FIGS. It is possible to selectively move between the retracted position N and the extended position M shown by solid lines in FIGS. 5 and 6 and by chain lines in FIG. A cam roller 8 is rotatably supported on the free end of the regulation arm A via a pivot p ₃ fixed to the regulation arm A, and the guide roller 8 holds the regulation arm A in the extended position M. Is located immediately below the cam surface 6a of the guide member 6. Therefore, when the slider S is raised in this state, the cam roller 8 engages with the cam surface 6a of the guide member 6 during the upward movement, and the cam action causes the load receiving tray T to gradually move from the overturned position X in accordance with the upward movement. It can be rotated upright. On the other hand, when the regulation arm A is placed in the retracted position N, the guide member 6 is out of the ascending / descending trajectory of the cam roller 8 (the cam roller 8 does not engage with the guide member 6), so that the load receiving tray T is held in the lying position X. You can raise and lower while doing this.

An L-shaped stopper portion 7 is integrally connected to the inner end of the pivot p ₃ and the stopper portion 7 rotates upright and the slider S moves upright as described later. When the slider S is raised to a predetermined intermediate position, it comes into contact with the sensing rod 9a of the safety device 9 described below to automatically stop the rise of the slider S.

At the lower rear end of the luggage box 1, it is detected that a foreign object is caught between the load receiving tray T and the rear end frame e of the vehicle body F while the slider S (and therefore the load receiving tray T) is being raised. A safety device 9 for urgently stopping the slider S is provided, and the safety device 9 includes a sensing rod 9a as a sensing unit capable of mechanically detecting the entrapment of a foreign substance and the foreign substance on the sensing rod 9a. And a stop switch Sw ₁ for detecting the pressure contact. Thus, the safety device 9 constitutes a stop control device of the present invention capable of controlling the lifting drive device (hydraulic cylinder C) so as to stop the lifting support (slider S) at any time during the lifting thereof.

The sensing rod 9a extends behind the rear end frame e of the vehicle body to substantially the width of the luggage box 1. Both ends of the sensing rod 9a are pivotally supported 9p on the rear end frame e of the vehicle body so as to be vertically rotatable. It is laterally connected between the one ends of the pair of rotating arms 9b. Left and right rotating arm 9b
Is normally biased to a predetermined non-sensing position (see FIG. 3) by the elastic force of a spring 9c provided between at least one of them and the vehicle body rear end frame e. The stop switch Sw ₁ is fixed to the rear end frame e of the vehicle body with the opening / closing operation part 10 facing the other end of the one rotating arm 9b. As shown, the other end of the rotating arm 9b is pressed against the opening / closing operation unit 10 to keep the switch on, and the sensing state of the sensing rod 9a (that is, the rod 9b).
When a foreign substance or the stopper portion 7 is in pressure contact with a), the base end portion of the rotating arm 9b rotated counterclockwise is separated from the opening / closing operation portion 10 as shown in FIG.

FIG. 7 shows an electric and hydraulic circuit diagram of a control system for controlling the ascent and descent of the slider S (hence the extension and contraction of the hydraulic cylinder C). The power supply circuit 11 connected to the battery includes a first circuit 12 ₁ having a main switch Sw ₀ and a fuse in series, and a second circuit 12 ₂ having a normally open relay switch Sw ₂ and an electric motor M in series. Are connected in parallel with each other, and further, the relay coil 13 and the solenoid coil 14a of the electromagnetic switching valve 14 are connected in parallel with each other to the first circuit 11 ₁ via the up / down switching switch Sw ₃ .

On the other hand, in the hydraulic circuit, between the oil sump 15 and the hydraulic cylinder C, a hydraulic pump P driven by an electric motor M to pump the working oil in the oil sump 15 to the hydraulic cylinder C.
And the electromagnetic switching valve 14 are interposed in series. The solenoid operated directional control valve 14 is located at the left side port position having a one-way valve function that allows only one-way oil flow from the hydraulic pump P to the cylinder C side when the solenoid coil 14a is in a non-excited state. In the excited state of the coil 14a, the port is switched to the right port position that allows the oil to flow back from the hydraulic cylinder C to the pump P.

Next, the operation of the above embodiment will be described.
Now, it is assumed that the load receiving tray T is in a use position in which the load receiving tray T is lowered from the floor surface 1f of the load box 1 and is lying down as shown by a solid line in FIGS. In this state, when the load receiving tray T is simply moved up and down for loading and unloading the load, the restriction arm A is held at the retracted position N shown in FIGS. Here, the main switch Sw ₁ is turned on and the up / down changeover switch Sw ₃ is turned on as shown in FIG.
When switching to the right ascending switching position with, relay coil 1
The relay switch Sw ₂ is turned on by the excitation of No. 3 to operate the electric motor M, and the hydraulic pump P is driven by this to extend the hydraulic cylinder C, so that the slider S and thus the load receiving tray T are raised. .

If the up / down change-over switch Sw _{3 is changed} to the neutral position at any time during the ascent, the relay switch Sw ₂ is turned off by the non-excitation of the relay coil 13 and the electric motor M is stopped, so that the hydraulic pump P is stopped. Along with this, the extension of the hydraulic cylinder C stops, and the rise of the slider S, and by extension, the load receiving tray T, stops. In this case, since the return of the oil from the hydraulic cylinder C is blocked by the electromagnetic switching valve 14, the hydraulic cylinder C is prevented from contracting against the weight of the load receiving tray T and the like, and the load receiving tray T is suitable for loading the load. It can be held in any raised position. Further, when the up / down changeover switch Sw ₃ is switched to the lower left changeover position in FIG. 7 from this state, the solenoid coil 14a is energized and the electromagnetic changeover valve 14 is changed over to the right side port position. Oil flows back to the oil sump 15 and the cylinder C
Is contracted, and the slider S is gradually lowered by its own weight such as the load receiving tray T.

By the way, in the case where the foreign material such as luggage or the body of a worker is caught between the cargo receiving tray T and the rear end frame e of the vehicle body F in the process of raising the above-mentioned cargo receiving tray T, By pressing the foreign matter against the sensing rod 9a of the safety device 9,
The stop switch Sw ₁ is turned off via the rotating arm 9b. As a result, the relay coil 13 is de-excited and the relay switch Sw ₂ is turned off, so that the hydraulic cylinder C is stopped by stopping the electric motor M (and hence the hydraulic pump P).
Automatically stops and the rise of the slider S, and by extension, the cradle T, stops, so that the foreign matter is removed from the cradle T and the vehicle body F.
There is no danger of being hurt between them and it is highly safe.

Next, after the loading and unloading of the luggage is completed,
It is assumed that the state of FIGS. 1 to 4 is stored upright. This
In the case of, first, manually move the regulating arm A to the extended position M.
Move operation. Then the main switch Sw₀Turn on
And lifting switch Sw ₃Fig. 7 shows the right side ascending switching
If you switch to the left position, it will
Lift switch Sw₃Switch to the rising switching position
The same action as when the slider S, and by extension, the loading tray T
Begins to rise. During the ascent,
The cam roller 8 is arranged so that the arm A is in the extended position M.
As a result, the cam surface 6a of the guide member 6 is engaged,
After that, move the loading tray T to the down position X according to the amount of rise.
It is gradually rotated upright to the upright storage position Y.

In this way, when the load receiving tray T is rotated upright and the slider S (hence, the load receiving tray T) is raised to the predetermined intermediate position for raising and lowering, the stopper portion 7 of the regulating arm A is detected by the sensing rod 9a of the safety device 9. Since the relay switch 13 is de-excited and the relay switch Sw ₁ is switched to the OFF state by pressing the pressure switch to switch the stop switch Sw ₁ to the OFF state, the hydraulic pump P is stopped by the operation stop of the electric motor M. Then, the hydraulic cylinder C stops expanding. Even in this case, the recirculation of oil from the hydraulic cylinder C is blocked by the electromagnetic switching valve 14, so that the hydraulic cylinder C is prevented from contracting against the weight of the load receiving tray T or the like, and therefore the load receiving tray T is stored. It can be held at a suitable constant height position. After that, the locking device 5 is locked by the operation of the lock lever 5b, and the loading tray T is securely fastened to the standing storage position Y.

In this way, when the loading tray T is stored upright, the lifting operation can be automatically stopped at a predetermined intermediate position for raising and lowering, so that the operator can monitor the lifting operation of the loading tray T at all times and stop lifting. There is no need to visually determine the position, which improves work efficiency. Moreover, since the ascending / descending position is always constant, it is effective for preventing mutual displacement between the load box side element (hook 5a) and the load receiving side element (lock lever 5b) of the fastening device L, and the load receiving platform. The lashing device L can always be used accurately when the T is stored,
Furthermore, it is not necessary to set the effective length of the guide member 6 to be longer than necessary in consideration of variations in the rising stop position of the load receiving tray T.

Further, FIG. 8 shows a second embodiment of the present invention. In this embodiment, the regulating arm A is shown in FIG.
Is supported by the left and right central portions of the load receiving tray T so that the retracting position stored in the load receiving tray T and the retracted position stored in the load receiving tray T can be selectively slid. When the slider S (and therefore the load receiving tray T) is in the overhang position M and is raised to a predetermined intermediate position for raising and lowering, the top surface of the tip of the arm A, which is the stopper portion 7, directly contacts the sensing rod 9a of the safety device 9. Is composed of. Further, the guide member 6 corresponding to the restriction arm A is also arranged at the center of the vehicle body F in the left-right direction. Since other configurations are the same as those in the previous embodiment, the corresponding constituent members will be given the same reference numerals as those in the previous embodiment, and the description thereof will be omitted. Thus, in this embodiment, the upper surface of the tip end portion of the regulating arm A serves as the stopper portion 7 of the present invention which can directly contact the sensing rod 9a, so that the structure can be further simplified. Although not shown, in the present embodiment, a lock mechanism for locking the regulating arm A at the extended position M is provided with the arm A and the cargo receiving tray T.
It is provided between.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments and various embodiments can be made within the scope of the present invention. For example, although the stopper portion 7 is provided on the regulation arm A in the above-described embodiment, the stopper portion may be provided on the load receiving base independently of the regulation arm in the invention of claim 1, Although the safety device 9 is also used as the stop control device in the example, the stop control device separate from the safety device may be used in the invention of claims 1 and 2. Further, although the sensing rod is used as the sensing portion of the safety device 9 in the above-described embodiment, a flexible string-shaped sensing portion may be used, and in the above-described embodiment, the slider S is connected via the movable column Gi. Although it is supported by the elevating column G so as to be vertically movable, the movable column may be omitted and the slider may be directly supported by the elevating column. Further, in the above-described embodiment, the cargo receiving tray T is provided at the rear end of the cargo box for loading and unloading the cargo at the rear end opening of the cargo box 1. However, the cargo box opening is provided at the side of the cargo box. In some cases, a load receiving pedestal may be provided on the side of the load box corresponding to the opening.

[0031]

As described above, according to the invention of each claim,
In a load carrier actuating device for a vehicle with a load box, when the support is raised to a predetermined intermediate intermediate position in the process of raising the lift support for storing the load receiver, the stopper on the load carrier side and the body side Since the lifting operation of the lifting support is automatically stopped in cooperation with the stop control device,
It is not necessary for the worker to monitor the ascending movement of the cargo receiving tray or to visually determine the ascending / descending position, which contributes to the improvement of the work efficiency. In addition, since the ascending / descending position is always constant, it is effective for preventing mutual displacement between the load box side element and the load receiving side element of the lashing device for locking the load receiving base in the upright storage position.

According to the second aspect of the invention, in the storage device for the load receiving base, which comprises the guide member on the vehicle body side and the load receiving base side regulating arm cooperating therewith, the regulating arm is provided with the above-mentioned structure. Since the stopper is provided, if it is not necessary to store and store the cargo stand upright, the stopper of the arm can be easily released from the stop control device by simply placing the regulating arm in the retracted position. The operation is very simple and the structure is simplified by the restriction arm also serving as a stopper. Furthermore, the guide member
Since it is not necessary to form this for an unnecessarily long period in consideration of variations in the rising and stopping position of the load receiving table, the size of the device can be reduced.

Further, according to the third aspect of the invention, the safety device for urgently stopping the lifting support by detecting the presence of a foreign object between the load receiving platform and the vehicle body while the lifting support is being raised is provided with the stop device. Since it can be used as it is for the control device, the structure of the device can be simplified and the cost can be reduced.

Further, according to the invention of claim 4, the mechanical contact between the stopper portion and the sensing portion of the safety device can be utilized to easily and surely stop the lifting operation of the load receiving platform at a predetermined position. it can.

[Brief description of drawings]

FIG. 1 is an overall side view showing a vehicle according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a rear portion of the cargo box in a state in which the cargo receiving tray is turned down.

FIG. 3 is a partially cutaway enlarged cross-sectional view taken along the arrow 3 of FIG. 2 (cross-sectional view taken along the arrow 3-3 of FIG. 4).

4 is a partially cutaway enlarged cross-sectional view as seen from the direction of arrow 4 in FIG.

FIG. 5 is a cross-sectional view similar to FIG. 3 showing a standing state of the load receiving base (a cross-sectional view taken along arrow 5-5 in FIG. 6).

6 is a rear view seen from the direction of arrow 6 in FIG.

FIG. 7 is a control circuit diagram of the embodiment.

FIG. 8 is a perspective view similar to FIG. 2, showing a second embodiment of the present invention.

[Explanation of symbols]

 A ・ ・ ・ ・ ・ ・ Regulating arm C ・ ・ ・ ・ ・ ・ Hydraulic cylinder as a lifting drive device D ・ ・ ・ ・ ・ ・ Storing device F ・ ・ ・ ・ ・ ・ ・ ・ Car body M ・・ ・ ・ ・ Overhanging position N ・ ・ ・ ・ ・ ・ Retracting position T ・ ・ ・ ・ ・ ・ Receiving stand X ・ ・ ・ ・ ・ ・ Folding position Y ・ ・ ・・ ・ ・ Standing position 1 ・ ・ ・ ・ ・ ・ Packing box 1a ・ ・ ・ ・ ・ ・ ・ Opening 7 ・ ・ ・ ・ ・ ・ Stopper 9 ・ ・ ・ ・ ・ ・ As a stop control device Safety device 9a ........ Sensing rod as sensing unit

Claims (4)

[Claims] 1. A load box (1) on a vehicle body (F), a lift support (S) provided on the load box (1) so as to be able to move up and down, and a lift for driving the lift support (S) up and down. A drive unit (C),
A load receiving platform (T) which is pivotally supported by the lifting support (S) and which can be rotatably swung between a substantially horizontal lying position (X) and a substantially vertical standing storage position (Y), and this loading platform (T). (D) capable of forcibly rotating the) from the down position (X) to the standing storage position (Y).
And a cargo box with a cargo box (T) in the lying position (X) higher than the floor surface (1f) of the cargo box (1) when the lifting support (S) is fully raised. Stop device (9) for controlling the lifting drive device (C) to stop the lifting support (S) at any time during the lifting of the lifting support (S).
Is provided on the vehicle body (F), and the load carrier (T) cooperates with the stop control device (9) in the process of raising the lift support body (S) for storing the load carrier and the lift support body (S). A load carrier operating device in a vehicle with a load box, comprising a stopper portion (7) for stopping the vehicle at a predetermined intermediate position for raising and lowering. 2. The storage device (D) includes a restriction arm (A) that is supported by a load receiving base (T) and is movable between a predetermined overhang position (M) and a retracted position (N). , A guide member fixed to the vehicle body (F) so as to engage the regulating arm (A) at the projecting position (M) and raise and rotate the load carrier (T) while the lifting support (S) is being raised. (6), The stopper part (7) is provided in the said control arm (A), The load-carrying stand operation | movement apparatus in the vehicle with a luggage box of Claim 1 characterized by the above-mentioned. 3. The stop control device detects that a foreign object is sandwiched between a load carrier (T) and a vehicle body (F) while the lift support body (S) is being raised, and the lift support body (F) is detected. The load carrier actuating device for a vehicle with a luggage box according to claim 1 or 2, which is a safety device (9) for emergency stop of S). 4. The safety device (9) can mechanically detect that a foreign object is sandwiched between the load carrier (T) and the vehicle body (F) while the lifting support (S) is being raised. It has a sensing part (9a), and the stopper part (7) is attached to this sensing part (9a).
4. The load receiving base (T) is rotated upright to the upright storage position (Y), and is brought into contact when the up-and-down support body (S) is raised to a predetermined up-and-down intermediate position. A cradle activating device for a vehicle with a luggage box as described above.