JP2020199894A - Load-carrying platform lifting device, and vehicle equipped with load-carrying platform lifting device - Google Patents

Abstract

PURPOSE: To provide a load-carrying platform lifting device which is mounted behind a load box, becomes an available state in a projection state that a load-carrying platform projects rearward from a substantially lengthwise direction of the load box, to which a camera, which photographs a rear region, can be fixed, and which can contribute to higher efficiency in loading and unloading work in addition to avoiding collisions with facilities and obstacles behind a vehicle, and the vehicle equipped with the load-carrying platform lifting device.CONSTITUTION: In this load-carrying platform lifting device, a pair of support parts which supports a load-carrying platform on both sides of a vehicle, a pair of columns or a vertically rotatable link arm with which these support parts are engaged, and a cross member which is connected to a load box, supports the column and has a longitudinal direction as a longer direction or a connection part which is connected to the load box, supports the link arm and has a longitudinal direction as a longer direction, are provided. The cross member or the connection part is provided with a stationery portion of a camera which photographs the rear of the vehicle, and thus, it is possible to take a picture of a region behind the vehicle from an area below the load box with the camera.SELECTED DRAWING: Figure 1

Description

The present invention relates to a loading platform elevating device mounted on a vehicle and used for loading and unloading a load between a packing box and the ground, and a vehicle provided with the loading platform lifting device.

The loading platform lifting device is mainly provided (mounted) at the rear of the vehicle and has a loading platform that can be lifted and lowered. Such a cradle elevating device includes a cradle that is held in an upright position behind the cradle and is held by a lock member when the vehicle is running (for example, Patent Document 1), or a cradle below the cradle. There are things that are stored and held in (for example, Patent Document 2). Vehicles equipped with a loading platform lifting device are loaded with a large amount of luggage on the loading platform, and a large luggage box taller than the driver's cab is provided behind the driver's cab. For this reason, it is difficult for the driver of the vehicle to visually recognize the rear part of the vehicle.

For this reason, in order to ensure safety when moving the vehicle backward, a technology that allows the driver to confirm the safety confirmation of the area behind the vehicle by installing the camera in the packing box and switching the gear for backward movement. Is also known (for example, Patent Document 3). Furthermore, there are vehicles (ordinary vehicles and other types of freight vehicles) equipped with cameras for the purpose of confirming safety to the same effect.

Japanese Patent No. 6294451 JP-A-2017-137046 Japanese Patent No. 3291963

The above-mentioned existing vehicle with a camera is intended only for visually recognizing the rear area of the vehicle, and is called grasping the rear area assuming the situation where the device is installed in the vehicle equipped with the loading platform lifting device. There is room for improvement in terms of points.

In general, when the vehicle is simply moved backward so as to be parked in a parking lot, contact with an obstacle or the like behind the vehicle can be prevented if the presence or absence of a person or an object in the rear region of the vehicle can be grasped. Further, in terms of a guide for stopping the vehicle, there are some that monitor the virtual stop line (boundary line) according to the actual "length of the vehicle to be moved backward". However, in the case of a vehicle equipped with a cargo cradle lifting device at the rear, the vehicle was stopped, not just "safety confirmation of the rear area of the vehicle" and "stop according to the size of the vehicle (approximately the length of the cargo box)". Later, the vehicle must be stopped in the "proper position" to make good use of the cradle lift.

Specifically, when the vehicle is running, including backward movement, the cradle is held in an upright position behind the packing box or stored and held under the packing box. When using the loading platform lifting device after the vehicle is stopped, the loading platform shall be in a horizontal state overhanging behind the packing box. For this reason, the position of the rear end of the vehicle changes by the amount of this "overhang", and the driver is in a situation or closer than expected with respect to the "appropriate position" when using the loading platform lifting device. It can be too much of a situation.

For example, when loading and unloading luggage at a collection point, the tip of the load receiving platform in a horizontal position must be in good contact with the dog shelter at the collection point, and the vehicle must be in contact with the above "overhanging" length. It will stop away from the dog shelter. Even if the contact state is slightly different, the tip of the loading platform will float with respect to the floor surface of the dog shelter, which will reduce the efficiency of loading and unloading the trolley, etc., so the stop position of the vehicle is adjusted. This is complicated and may require not only the driver but also a confirmer who confirms the contact state in the surrounding area.

In addition, even if the luggage to be loaded is placed on the ground outside the collection area, if the cargo cradle is in the "overhanging" state after the vehicle is stopped, the vehicle will approach the luggage more than necessary and the cargo cradle will be loaded. May come into contact with. In particular, since the luggage is loaded and unloaded using the loading platform lifting device, not only its size but also its weight is sufficiently large, so as a driver (worker), the vehicle can be used as much as possible to reduce the moving distance of the luggage. The point of trying to bring them closer is also a psychological factor.

Therefore, although there is a technique of using a camera as in Patent Document 3, the dog shelter as described above can be used only for the purpose of checking the rear area of the vehicle from a bird's-eye view or checking a wide area. It is difficult to stop the vehicle at an "appropriate position" for the load to be loaded, and to set the desired position (state) for quickly using the subsequent "overhanging" cradle. Therefore, it is desirable to check the rear area of the vehicle from a viewpoint that can assume a cradle in an "overhanging" state. However, since the load receiving platform elevating device itself is mounted on the rear part of the vehicle, it is necessary to prevent the rear area that can be confirmed from being shielded by the device, and there are large layout restrictions on the installation.

The present invention has been made in view of these points, and is mounted behind a packing box mounted on a vehicle so that the loading platform projects rearward from the substantially length direction of the packing box. A camera that can be used for loading and unloading luggage and a camera that captures the area behind the vehicle can be fixed, which contributes to more efficient loading and unloading work in addition to avoiding collisions with facilities and obstacles behind the vehicle. An object of the present invention is to provide a vehicle equipped with a platform lifting device and a loading platform lifting device thereof.

In the present invention, the following means are used to solve the above problems.
It is provided at the rear of the vehicle on which the packing box is mounted, and is included in the approximate packing box length area in the front-rear direction of the vehicle when the vehicle is running, and is also used for loading and unloading luggage between the packing box and the ground. The target is a cradle elevating device provided with a cradle that is in a horizontal state so as to project from the substantially cargo box length region to the rear side of the vehicle. The "approximately cargo box length area" refers to the area in which the cargo box is mounted in the front-rear direction of the vehicle, and in a vehicle equipped with a cargo cradle lifting device in which the cradle is in an upright posture, the load is loaded. In addition to the rear end face of the box, the thickness of the loading platform in the standing position is also added to the area.

In the load receiving platform elevating device, the pair of left and right support portions that support the load receiving platform and the pair of left and right support portions are engaged with each other on both sides of the vehicle in the left and right directions, and the left and right sides have a vertical direction as a longitudinal direction. A pair of struts or a pair of left and right link arms that can rotate up and down with the left and right directions of the vehicle as axial directions are connected to the packing box, and the pair of left and right struts are supported to lengthen the left and right directions of the vehicle. A cross member having a direction or a connecting portion for supporting the pair of left and right link arms and having a longitudinal direction in the left-right direction of the vehicle is provided. The cross member or the connecting portion is provided with a fixed portion of a camera portion that reflects the rear of the vehicle, and the region below the packing box or the lower portion of the packing box is provided by the camera portion fixed to the fixed portion. From the area, the rear area of the vehicle can be photographed. By providing a fixed portion on the cross member or the connecting portion, the rear region can be photographed starting from a position close to the overhanging cradle. Therefore, it is easy to assume the overhanging cradle, and even if the cradle is held in the substantially length area of the cargo box, the vehicle can be stopped while assuming the overhanging cradle. .. In particular, for the driver (worker) of the vehicle equipped with the load receiving platform elevating device, the effect of being able to photograph the rear region in which the state in which the load receiving platform is overhanging can be easily assumed is great.

The cross member or the connecting portion may be provided with a mounting stay to which the tail lamp is mounted, and the mounting stay may have the fixing portion. Since the mounting stay is provided with the fixed portion, it is possible to secure a state in which the photographing area is not obstructed by other members as in the case of the tail lamp in the close state.

Alternatively, the fixing portion provided on the cross member may be provided in a state of protruding downward from the cross member. Since the loading platform in the standing posture is held in a state of facing the cross member or slightly above the cross member, the fixed portion is provided so as to protrude downward from the cross member. It is possible to prevent the shooting area of the camera from being obstructed by the posture cradle.

The above-mentioned cargo cradle is provided so as to be in an upright posture when the vehicle is in a running state, and the fixed portion is provided so that the camera unit can take a picture from a region below the cradle in an upright posture. It is desirable that it is done.

Further, when the packing box mounted on the chassis frame whose longitudinal direction is the front-rear direction and the packing box is used for loading and unloading the luggage between the packing box and the ground, the packing box protrudes rearward from the packing box. It is provided with a load receiving platform elevating device provided with a load receiving table in a horizontal state, and a mounting stay fixed so that a tail lamp can be mounted at the rear of the packing box. The mounting stay is a camera that looks at the rear. The fixed portion is also applicable to a vehicle provided with a fixed portion thereof so that the camera portion can photograph a rear region of the packing box from a lower region of the packing box.

Since the load receiving platform elevating device according to the present invention is provided with fixing portions for fixing the camera to the above-mentioned cross member, connecting portion, or mounting stay at the rear of the packing box, it can be operated from these height positions. The person (worker) can operate the rearward movement of the vehicle while confirming the safety of the rear area of the vehicle. Further, since the fixing portion is provided on the cross member, the connecting portion, or the mounting stay at the rear part of the packing box, the camera image taken is also a viewpoint based on these members. For this reason, the rear area can be grasped based on a viewpoint close to the cradle in the horizontal posture, and the distance required for the cradle in the horizontal posture at the time of manipulating the rear movement of the vehicle can be accurately determined. Can be confirmed in. That is, it is easier to secure an appropriate distance for skillfully using the load receiving platform elevating device after the vehicle is stopped, as compared with the case where the purpose is merely to confirm the safety of the rear area of the vehicle. In particular, since the position of this viewpoint is provided at the height of the ground and the floor of the cargo box, the elevating area of the cradle that is lifted and lowered can be reliably projected, so that the vehicle is equipped with the cradle lifting device. Is a very suitable configuration.

Further, the tail lamp is required to accurately irradiate the rear of the vehicle while the vehicle is running, and if the tail lamp mounting stay satisfies the condition, a load receiving platform elevating device is mounted at the rear of the vehicle. The camera can be fixed with a sufficient shooting area secured even when the camera is in the position.

(A) is a side view of a main part of the vertical load receiving platform elevating device according to the first embodiment of the present invention as seen from the side of the vehicle, and (b) is a rear view of the main part of the device as seen from the rear of the vehicle. is there. It is a schematic side view seen from the side of the vehicle which shows the loading platform elevating device which concerns on 1st Embodiment of this invention. (A) is a side view showing a vehicle loading platform before mounting the loading platform elevating device in the first embodiment of the present invention, and (b) is a side view showing a vehicle loading platform after mounting the device. (A) is a side view of a main part seen from the side of the vehicle showing a modified example of the vertical load receiving platform elevating device according to the first embodiment of the present invention, and (b) is a key point of the modified example seen from the rear of the vehicle. It is a rear view of a part. It is a perspective view which shows the loading platform elevating device which concerns on other embodiment of this invention.

An example of an embodiment of the load receiving platform elevating device according to the present invention will be described with reference to the drawings.
FIG. 1A is a side view of a main part of the load receiving platform elevating device 100 mounted on the rear part of the vehicle T according to the first embodiment. The vehicle T has a pair of left and right chassis frame CFs whose longitudinal direction is the front-rear direction of the vehicle, a subframe SF laminated on the chassis frame CF, and a packing box B mounted on the subframe SF. The loading platform elevating device 100 includes a pair of left and right columns 1 erected at the rear end of the loading box B, a slider 2 that can be moved up and down inside the columns 1, and a loading platform 3 supported by the lower end of the slider 2. A cross member 4 erected between the left and right columns 1, a hydraulic cylinder (not shown) provided in the cross member 4 with the vehicle left-right direction as the longitudinal direction, and a pair of left and right fixedly attached to the bottom of the cross member 4. The mounting stays 5L and 5R, the tail lamps 6 fixed to the mounting stays 5L and 5R, and the camera 7 fixed to one of the mounting stays 5L and 5R are provided. For convenience of explanation, the support column 1 is shown by a alternate long and short dash line, and the camera 7 is shown by a diagonal line.

The support column 1 is provided with a notch on the rear wall, and a part of the slider 2 projects rearward from the notch, and the load receiving base 3 can rotate in the vertical direction with respect to the protruding portion. It is pivotally supported. In addition, in FIG. 1A, the load receiving table 3 is in a standing posture so that the vehicle T can travel while traveling, and can be deployed from this standing posture to a horizontal posture (arrow A1), and further with respect to the ground. It can be raised and lowered in a horizontal position (arrow A2).

The slider 2 is provided with rolling rollers 2a and 2b capable of rolling an inner wall 1a that divides the inner space of the support column 1 into a front side and a rear side, and a fastening portion to which a wire W is fastened at an intermediate portion. 2c is provided.

The cross member 4 is welded to the floor surface of the support column 1 and the packing box B in a hollow state with the left-right direction of the vehicle as the longitudinal direction. The cross member 4 has a main body portion 41 having a substantially U-shaped cross section and a cover 42 that closes an open portion of the main body portion 41 that is open to the rear side of the vehicle. The hydraulic cylinder is housed inward from the open portion of the main body 41 with the cover 42 removed. The cover 42 has a known configuration (for example, Japanese Patent Application Laid-Open No. 2011-126485) that is engaged with the open portion edge of the main body 41, and the upper portion of the cover 42 is provided on the open edge of the main body 41. It is inserted into the inserted insertion port (locking portion), and the lower portion of the cover portion 42 is fastened to the edge of the open portion via bolts and nuts provided at predetermined intervals along the vehicle width direction.

The hydraulic cylinder in the cross member 4 extends and contracts to extend the wire W to the support column 1 or pull it in from the support column 1 to raise and lower the slider 2. One end of the wire W is fixed to the upper ends of the left and right sliders 2, is guided upward from the slider 2, and is folded downward by a pulley C provided on the upper part of the support column 1. The other end of the folded wire W is guided downward, guided from the intermediate portion of the column 1 into the cross member 4 via a sheave (not shown), and appropriately fastened to the hydraulic cylinder. The expansion and contraction force of the hydraulic cylinder is used as the power for raising and lowering the slider 2, and this expansion and contraction force is transmitted to the slider 2 via a power transmission unit such as a wire W. As a result, as shown by the arrow A2, the loading platform 3 is moved up and down along the support column 1 between the ground and the floor height of the packing box B.

The mounting stays 5L and 5R are formed by bending a metal plate, and the bent upper end portion is welded to the bottom surface portion of the main body portion 41 of the cross member 4, and the lower end portion faces the rear side of the vehicle. It is folded so that it is in the original state.

As shown in FIG. 1B in a state where the load receiving platform lifting device 100 is viewed from the rear of the vehicle, the left and right mounting stays 5L and 5R have different lengths in the left and right directions.

The left side mounting stay 5L is longer in the left-right direction than the right side mounting stay 5R. A tail lamp 6 having a longitudinal direction in the left-right direction is attached to a tail lamp attachment portion 51 having a length L1 on the outside of the vehicle, and a camera 7 capable of photographing the rear of the vehicle is fixed to a fixed portion 52 having a length L2 inside the vehicle. Has been done. The tail lamp 6 is fixed in each of the mounting stays 5L and 5R so as to be fitted in the notches 5La and 5Ra whose longitudinal direction is the left-right direction, and the irradiation surface as a part thereof slightly protrudes to the rear side of the vehicle. The camera 7 is fixed to the fixed portion 52 on the front side of the vehicle so that the rear side of the vehicle can be imaged through the rectangular cutout portion 5Lb. Although the fixing portion 52 is provided only on the left side mounting stay 5L, it may be provided on the right side mounting stay 5R. Further, it may be provided on both mounting stays 5L and 5R. In particular, the fixed portion 52 is provided at a position inside the vehicle T (closer to the center) in order to capture an as wide a range as possible in the rear region of the vehicle, but depending on the photographing region of the camera 7, the fixed portion 52 of the vehicle T A fixed portion 52 may be provided on the outside. In particular, when it is preferable to focus on the side of the vehicle, it is preferable to provide the fixed portion 52 on the outside.

Although not shown, the camera 7 is connected to a control unit that receives power from the battery of the vehicle T. A gear position sensor installed in the driver's cab (cab) to detect a change in the position of the gear (shift lever) of the vehicle T and a monitor installed in the driver's cab are also connected to the control unit. When the control unit receives the signal output from the gear position sensor due to the change in the gear position of the driver, the camera 7 is turned on and the vehicle is turned on when the gear position is in the reverse position (movement backward of the vehicle T). The area behind T is photographed, and the photographed image is controlled so as to be displayed on the monitor. The electrical wiring between the camera 7 and the control unit, or the electrical wiring between the gear position sensor and the monitor and the control unit is provided along the chassis frame CF, and the electrical wiring connected to the camera 7 is the camera 7. Is fixed to the mounting stay 5L in a state of being close to the tail lamp 6. Therefore, these electric wirings can be provided together with the electric wirings connected to the tail lamp 6, and it is possible to prevent the wiring of the electric wirings in the vehicle T from being complicated.

In the case of the load receiving platform elevating device 100 according to the present embodiment and the vehicle T provided with the device 100, the following effects are obtained.

Since the load receiving platform lifting device 100 is provided at the rear of the vehicle T and has a configuration and a function of raising and lowering the loading platform 3 behind the vehicle T, a member for operating the loading platform 3 is also located at the rear of the vehicle T. There are multiple. The camera 7 is provided so that the image of the camera 7 is not hindered when the driver moves the vehicle T backward by these members. As shown in FIG. 2A, the vehicle T is generally moved backward while the vehicle is running, specifically, the load receiving table 3 is held in the upright posture. At this time, when the driver sets the gear position to the reverse position, the rear region of the vehicle T is displayed on the monitor in the driver's cab. At this time, the photographing area S is photographed by the camera 7 from the lower area DS of the packing box B, and the photographing area S is photographed from the area below the loading platform 3 in the standing posture. Since the camera 7 is provided below the packing box B at a position close to the cross member 4, as shown in the drawing, it is possible to take a picture from the base end side when the loading platform 3 projects in a horizontal posture. That is, since the captured image from a position close to the load receiving table 3 which is in the horizontal position when the vehicle T is stopped after the fact is displayed on the monitor, the driver considers it appropriate when the load receiving table 3 is in the horizontal position. It is easy to assume the position to be, and the error of the stop position of the vehicle T becomes smaller as compared with the images taken from other positions. Further, since the fixing portion 52 (see FIG. 1 (b)) of the mounting stay 5L to which the camera 7 is fixed is provided at a position adjacent to the tail lamp 6 (see FIG. 1 (b)), the irradiation area is different. Similar to the tail lamp 6 which is set so as not to be hindered by the members of the above, the photographing area S projected by the camera 7 can be projected well. As long as the photographing area S can be satisfactorily secured, the fixed portion 52 may be the photographing area S behind the vehicle from the lower area DS of the packing box B even if it is above or below the tail lamp 6. Of course, the luggage (such as propane gas to be delivered) P to be loaded is also projected well in the packing box B at the rear of the vehicle, and the vehicle T is at a position approaching an appropriate distance D as shown in FIG. 2 (b). Can be stopped. In the present embodiment, the mounting stay 5L has a configuration in which the tail lamp mounting portion 51 and the fixing portion 52 are integrated, but the configuration is not necessarily limited to the integrated configuration when the same effect is obtained. The fixed portion 52 may be provided on the cross member 4 in a state of being separated from the tail lamp mounting portion 51.

The distance D refers to a distance at which the load receiving table 3 can be easily loaded on the load receiving table 3 by being lowered until the load receiving table 3 touches the ground when the load receiving table 3 is in the horizontal posture. That is, since the distance between the load receiving table 3 and the load P is large after the load receiving table 3 touches down, the load piece P must be unnecessarily carried to the load receiving table 3, or the vehicle T is moved backward again after the load receiving table 3 touches down. If the cargo cradle 3 is changed (deployed) to the horizontal posture after the vehicle T is stopped, the luggage does not interfere with the luggage pedestal 3 and the luggage does not move unnecessarily. Also refers to the distance at which loading can be easily performed on the loading platform 3. By obtaining the distance D when the vehicle T moves backward for the first time, it contributes to shortening the time required for the entire loading / unloading work of the luggage P and reducing the burden on the operator. In particular, since the image taken by the camera 7 (dotted line area G in FIG. 2 (a)) is taken from a position approximately the same as the load receiving table 3 in the horizontal posture, it is more accurate than the camera image taken from other parts. It is possible to accurately grasp the size of the load receiving table 3 projecting rearward from the packing box B. Moreover, since it is fixed to the mounting stay 5L, it is possible to prevent interference not only with the loading platform 3 in the standing posture but also with the loading platform 3 that moves up and down.

In addition, the cargo box B of the vehicle may have a shape in which the upper part is closed, a so-called van type, or a shape in which the cargo box of the vehicle on which the loading platform elevating device is mounted has an open upper part, so-called cargo. There is also a type type. In the case of the van type, it is possible to install the camera on the upper part of the packing box as in Patent Document 3, but in the case of the cargo type, it is difficult to install the camera on the upper part of the packing box. That is, if the camera 7 is provided at the fixed portion 52 of the mounting stay 5L according to the present embodiment, the conditions for whether or not the camera can be installed do not differ depending on the type of the packing box B, and the packing box B is stable. Can be attached to the vehicle T on which the camera is mounted. Further, when the load receiving table 3 is in the upright posture in the vehicle traveling state as in the load receiving table lifting device 100 according to the present embodiment, the load receiving table covers a region on the rear side substantially the entire width of the vehicle. Therefore, the installation position of the camera is very limited, and in addition, it is important to ensure the wide area and sharpness of the view area for the purpose of confirming the safety of the rear area. It is preferable for the driver and the manufacturer that the photographing area S behind the vehicle can be secured so that the vehicle T can be stopped at an appropriate distance D at a close position.

In particular, in the case of a cargo type packing box B, in the case of a tall luggage P or the like, when the luggage P is loaded on the packing box B, the loading platform 3 in an upright posture as shown in FIG. The height of the uppermost part of the luggage P may be larger than that of the luggage P. In this case, the driver's field of view behind the vehicle is further obstructed, but the camera 7 can stably grasp the area behind the vehicle.

In addition, the rearward movement of the vehicle T is explained only when the load receiving table 3 stands upright, but depending on the operator, the load receiving table 3 is placed in a horizontal position after the vehicle T is stopped near the loading / unloading work site. It is also possible to move the vehicle T backward by the remaining short distance. In this case, since it is the photographing area of the camera 7 from the lower area of the packing box B, it is possible to grasp the rear area S even if the loading platform 3 is deployed on the photographing area.

As described above, in the camera 7 according to the present embodiment, the camera 7 is attached to the lower region DS of the packing box B for the purpose of confirming the safety behind the vehicle and stopping at an appropriate position when the vehicle T moves backward. It has a structure. Therefore, it does not require an unnecessarily wide shooting area, but rather makes good use of the loading platform elevating device 100 provided at the rear of the vehicle T after moving to the target loading / unloading site. It suffices if a camera 7 is provided that can capture a distance and an area that can be moved backward. Since it is sufficient if the function of the camera 7 is to satisfy such a purpose, it is not necessary to install an unnecessarily high-precision camera or high-performance equipment for making the camera shooting usable for various purposes, so that the installation cost is high. Can also be suppressed.

In the case of the load receiving platform lifting device 100 according to the present embodiment, the vehicle manufacturer delivers the load receiving platform lifting device 100 to the mounting manufacturer of the loading platform lifting device 100, and the loading platform lifting device 100 is installed (mounted) as shown in FIG. 3A. In the previous state, in order to install the load receiving platform elevating device 100 with respect to the chassis frame length LT, the chassis frame CY and the subframe are set by the mounting manufacturer by a predetermined length LL from the rear end portion of the length LT. The SF and the floor surface portion (not shown) of the packing box B are cut and removed. Reinforcing members (horizontal members for reinforcing between the pair of left and right chassis frame CFs) and mounting members that are preliminarily attached within the range of the length LL are also removed at the same time.

After the cutting, the support column 1 and the cross member 4 are welded and fixed to the packing box B as shown in FIG. 3B (similarly welded and fixed to the chassis frame CY and the subframe SF). As a result, the load receiving platform lifting device 100 is mounted on the rear part of the loading box B, and the loading box B and the loading platform lifting device 100 in a state where the loading platform 3 is held in an upright posture are combined. The length in the front-rear direction of the vehicle is approximately the packing box length region. When loading and unloading the load using the load receiving platform elevating device 100, the load receiving table is in a horizontal posture in which the load receiving table protrudes from the substantially cargo box length region to the rear side of the vehicle. As described above, the mounting stays 5L and 5R are attached to the cross member 4, and each of these members is individually fixed to the vehicle T, but each member is integrated in advance as a unit. It may be fixed to the vehicle T. By unitizing in advance, it is possible to store it in a unitized state, and it is also possible to ship the unitized product. Of course, the tail lamp 6 or the camera 7 may be fixed in advance in the unitized state.

With respect to the load receiving platform elevating device 100 according to the present embodiment, the present invention can be applied to the modified example shown in FIG. In this modification, the camera 7 is fixed to the cover 442 of the cross member 400, and members and the like having the same configuration will be described using the same reference numerals.

The camera 7 is located below the packing box B as in the above-described configuration, and is provided on the fixed portion 442b of the cover 442 in a state where the rear region of the vehicle can be photographed well. The fixed portion 442b is a rectangular plate portion, and as shown in FIG. 4B, the lower side from the substantially central lower end portion in the left-right direction of the covering portion 442a that closes the open portion of the main body portion 41 of the cross member 400. It has been extended to. The camera 7 is fixed in a state in which the rear region of the vehicle can be photographed from the rectangular notch 442s formed in the substantially central portion of the fixed portion 442b.

By using the fixed portion 442b of the cover 442 as in this modification, the camera 7 is fixed to the center of the vehicle or a portion near the center, unlike the configuration shown in FIG. 1 (b). be able to. As a result, the image of the rear region displayed on the monitor can be set to start from the center of the vehicle. In particular, since the camera 7 is fixed to the central portion of the vehicle in the left-right direction, the monitor image is even on the left and right, and the rear area of the vehicle can be confirmed in a well-balanced manner. Therefore, it is easy to grasp the state of the load receiving table 3 which is in the horizontal posture after the vehicle T is stopped and the state of the relative position between the load receiving table 3 and the load to be loaded.

The fixed portion 442b extending downward has a height H2 in the vertical direction, and is provided so as to be shorter than the same height H1 of the left and right mounting stays 5L and 5R on which the tail lamp 6 is provided. There is. The height H2 of the fixed portion 442b may be equal to or larger than the height H1 of the mounting stays 5L and 5R, but it is preferably smaller in order to secure the ground clearance and prevent interference with other members. .. The fixed portion 442b is not limited to the central portion in the left-right direction not only in its size but also in its position, and can be appropriately changed as long as it does not interfere with other members. Further, regarding the position of the fixed portion 442b, a configuration may be provided in a position closer to the left or right in order to avoid interference with another member, for example, a license plate provided on the vehicle T. Further, although the cover 442 has a fixed portion 442b, the cover 442 may have only the shielding portion 442a and the main body portion 41 may be provided with the same fixed portion. For example, the main body 41 may have a structure in which the rectangular fixing portion extends downward at the lower end of the open edge.

As described above, the configuration in which the various fixing portions 52 and 442b are provided has been described, but other members may be used as long as the camera 7 can be fixed below the packing box B. .. Further, not only the fixing portions 52 and 442b extending from the mounting stay 5L or the cross member 400, but also the fixing portions formed by welding or fastening to the mounting stay or the cross member may be used. Furthermore, the structure is such that a fixed portion is provided at a position outside the cross members 4 and 400, but if an installation space is secured inside the cross members 4 and 400, the fixed portion is provided inside. The camera 7 may have a fixed portion and the camera 7 may be fixed to the fixed portion. In the case where the fixed portion of the camera 7 is provided inside the cross members 4 and 400, the loading platform 3 in the standing posture faces the cross members 4 and 400 (or slightly) as shown in the figure. Since the load receiving table 3 is held on the upper side), it is preferable to provide the cross member 4 and 400 on the lower end side so as not to obstruct the photographing area. In this case as well, the cross member 4 is provided in the "lower region" DS of the packing box B.

In the first embodiment, the type of load receiving platform lifting device 100 in which the loading platform 3 moves vertically along the support column 1 has been described, but the present invention can be applied to other types of loading platform lifting devices.

As an example thereof, the load receiving platform elevating device 200 according to the second embodiment of the present invention shown in FIG. 5A and the vehicle T2 in which the device 200 is installed will be described.

The load receiving platform lifting device 200 according to the present embodiment is applicable to the loading platform lifting device 200 supported by a pair of left and right link arms 201. The configuration of the load receiving platform lifting device 200 and the vehicle T will be described focusing on a portion different from the loading platform lifting device 100 described above. As in the first embodiment, the load receiving table 3 is held in an upright posture when the vehicle is running, and has the same reference numerals. The other members having the same functions as those in the first embodiment are designated by the same reference numerals.

The load receiving platform elevating device 200 is provided on a pair of left and right arms 201 that are vertically rotatable with respect to the vehicle, a column 202 that is fixed to the tip of the arms 201 and three plates are welded to the column 202. On the other hand, a load receiving table 3 supported so as to be vertically rotatable is provided as a known configuration (for example, Japanese Patent Application Laid-Open No. 2015-166236). The arm 2 is connected to a connecting portion 203 erected on a pair of left and right chassis frames CY that support the cargo box B of the vehicle. In the loading platform 3, the loading platform 3 is moved up and down between the ground and the loading platform height by the rotating arm 201. In the illustrated load receiving platform lifting device 200, the loading platform 3 is rotated (deployed) to the rear of the vehicle and is in a state of being grounded.

The connecting portion 203 is composed of a frame bracket 203a fixed to the lower part of the chassis frame CY, a connecting pipe 203b erected on the left and right frame brackets 203a, and mounting members 203c fixed to both ends of the connecting pipe 203b. There is.

The arm 201 is supported by each of the left and right mounting members 203c. Each of the left and right arms 201 is composed of two arms (lift arm 211 and compression arm 212). The upper lift arm 211 is pivotally supported on the proximal end side by the pivot 211a, and the lower compression arm 212 is pivotally supported on the proximal side by the pivot 212a. Further, the tip ends of the arms 21 and 22 are pivotally supported by the axes 211b and 212b with respect to the column 202, respectively. In the lift arm 211 and the compression arm 212, the mounting member 203c and the column 202 form a parallel link mechanism. A hydraulic cylinder 204 is provided on the mounting member 203c, and the vertical rotation of the parallel link mechanism is driven by utilizing the expansion and contraction of the hydraulic cylinder 204, and the lifting operation of the load receiving table 3 maintains the horizontal state shown in the figure. It will be done as it is.

The illustrated loading platform 3 has a base end portion on the side closer to the loading platform 203 (the front side of the vehicle in the drawing) in a direction orthogonal to the width direction (the same direction as the vehicle width direction) (the same direction as the vehicle front-rear direction). It has a tip on the side far from the loading platform 203 (the rear side of the vehicle in the figure). The loading platform 3 is raised and lowered while maintaining the horizontal state shown in the figure by using a parallel link mechanism composed of a mounting member 203c, a lift arm 211, a compression arm 212, and a column 202.

The loading platform elevating device 200 according to the present embodiment is also provided with mounting stays 205L and 205R. The tail lamp 6 and the camera 7 are fixed to the left mounting stay 205L, and the tail lamp 6 is fixed to the right mounting stay 205R. Has been done.

The mounting stays 205L and 205R are provided on the left and right side portions of the connecting pipe 203b via two upper brackets fixed to the connecting pipe in a state of extending upward. The tail lamp 6 or the camera 7 is fixed to the mounting stays 205L and 205R as in the first embodiment. Therefore, the camera 7 is provided in the lower region of the packing box B in a state adjacent to the tail lamp, and the photographing region S (see FIG. 2A) can be seen behind the vehicle without being hindered by the loading platform 3 in the standing state. Can be secured.

Further, in the present invention, the same cargo receiving platform 3 is in an upright posture, and the cargo receiving platform elevating device 300 according to the third embodiment shown in FIG. 5 (b) and the vehicle on which the device 300 is installed. It is also applicable to T3. Similarly, in the present embodiment, the same reference numerals are given to those having the same functions as those in the first embodiment.

The loading platform elevating device 300 has a configuration in which the loading platform 3 is connected to a parallel link mechanism 301 provided at the rear of the vehicle, which is also a known configuration (for example, Japanese Patent Application Laid-Open No. 2011-157029). The parallel link mechanism 301 is attached to a chassis frame (not shown) composed of a main frame or the like of a vehicle via a support member 302 whose longitudinal direction is the vehicle width direction. As shown in the figure, in the traveling state in which the load receiving table 2 is not used, the load receiving table 3 is in an upright state facing the rear surface of the packing box B3. Below the packing box B3, a bumper (rear collision prevention means) divided into three so as not to interfere with the parallel link mechanism 1 is also provided.

The packing box B3 is not a cargo type but a van type as in the first and second embodiments, and has mounting stays 305L and 305R fixed to the lower left and right sides of the packing box B3. A tail lamp 6 or a camera 7 is fixed to these mounting stays 305L and 305R as in other embodiments. Since the load receiving platform elevating device 300 according to the present embodiment is provided with the left and right parallel link mechanisms 301 at positions closer to the center in the left-right direction (vehicle width direction) of the vehicle T3, the tail lamp 6 is irradiated by the mechanism 301. Mounting stays 305L and 305R are provided at the ends in the left-right direction so that the area and the photographing area of the camera 7 are not obstructed, but the position is not particularly limited.

In the third embodiment, the load receiving platform lifting device using the parallel link mechanism is in an upright posture when the loading platform 3 is in the vehicle traveling state, but as a loading platform lifting device using the parallel link mechanism. There is also a type in which the receiving platform is folded and stored under the packing box B3. Even if the loading platform elevating device capable of accommodating the loading platform 3 below the packing box B3 and the vehicle in which the device is installed, the mounting stays 305L and 305R and the tail lamp 6 are used as in the third embodiment. , The present invention having a configuration in which the camera 7 is installed is applicable.

As described above, regardless of the type of cargo receiving platform lifting device and any type of packing box, the camera is fixed via a part (mounting stay or cover) provided below the packing box. Having a possible configuration not only prevents the loading platform elevating device from obstructing the imaging area, but also allows the vehicle rear area to be viewed from a viewpoint suitable for the height of the loading platform in a state of being projected to the rear of the packing box. You can check. Therefore, it is useful to stop the vehicle moving backward at a distance suitable for loading and unloading the luggage without the vehicle colliding with the dog shelter or the loaded luggage. Since the target is luggage that is heavy or large enough to require a loading platform lifting device for loading and unloading the vehicle (loading box), stopping the vehicle at an appropriate distance is not only a collision with the luggage, but also a target stop position. Due to the fact that the vehicle is stopped farther away, the work for bringing the luggage closer to the vehicle and the re-movement of the vehicle backward (driving operation) can be omitted, which is related to the entire loading and unloading work of the luggage. It leads to improvement of work efficiency. Furthermore, since the fixing part is provided below the packing box, and in particular, the fixing part is provided on the cross member, the connecting member, and the mounting stay fixed to the cross member, the fixing part is limited to a position close to the ground. It will not be shot from a higher position than necessary. That is, a fixed portion is provided in the elevating area of the load receiving table operated between the ground and the floor surface of the packing box, and the area can be photographed satisfactorily.

The present invention relates to all cradle lifting devices equipped with a cradle that raises and lowers the cradle in a horizontal position behind the cradle when used from the loading box installation area, and a vehicle equipped with the cradle lifting device. On the other hand, it is useful.

1 Prop 2 Slider 3 Cargo stand 4 Cross member 5 Mounting stay 6 Tail lamp 7 Camera 51 Tail lamp mounting part 52 Fixing part T, T2, T3 Vehicle B, B2, B3 Cargo box 100, 200, 300 Cargo stand lifting device Chassis frame CF
Subframe SF

Claims (5)

It is mounted on the rear part of the vehicle on which the packing box is mounted, and is included in the approximate packing box length area in the front-rear direction of the vehicle when the vehicle is running, and is used for loading and unloading luggage between the packing box and the ground. It is a loading platform elevating device provided with a loading platform that is in a horizontal state protruding from the substantially cargo box length region to the rear side of the vehicle when in a state of being used.
A pair of left and right support portions that support the load receiving platform on both sides of the vehicle in the left-right direction,
A pair of left and right support columns whose left and right support portions are engaged with each other and whose longitudinal direction is the vertical direction, or a pair of left and right link arms which can rotate up and down with the left and right direction of the vehicle as the axial direction.
While being connected to the packing box, the cross member that supports the pair of left and right columns and has the left and right direction of the vehicle as the longitudinal direction or the pair of left and right link arms is supported and the left and right direction of the vehicle is defined as the longitudinal direction. With the connecting part to
Is provided,
The cross member or the connecting portion is provided with a fixed portion of a camera portion that reflects the rear of the vehicle.
A load receiving platform elevating device characterized in that a camera unit fixed to the fixed portion enables an image of a rear region of the vehicle from a region below the packing box. A mounting stay to which the tail lamp is mounted is provided on the cross member or the connecting portion.
The load receiving platform elevating device according to claim 1, wherein the mounting stay has the fixed portion. The load receiving platform elevating device according to claim 1, wherein the fixing portion provided on the cross member is provided in a state of projecting downward from the cross member. The cradle is provided so as to be in an upright posture when the vehicle is in a running state.
The loading platform elevating device according to any one of claims 1 to 3, wherein the fixed portion is provided so that the camera unit can take a picture from a region below the loading platform in an upright posture. A packing box mounted on a chassis frame with the front-rear direction as the longitudinal direction,
A cradle elevating device equipped with a cradle that is in a horizontal state protruding rearward from the cradle when it is used for loading and unloading luggage between the cradle and the ground.
A mounting stay fixed so that a tail lamp can be mounted at the rear of the packing box,
Is equipped with
The mounting stay has a fixed portion of a camera portion that reflects the rear, and has a fixed portion.
The fixed portion is a vehicle provided with a loading platform elevating device, characterized in that the camera unit is provided so as to be able to take a picture of a rear region of the packing box from a lower region of the packing box.

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