JP2016041534A - Loading platform lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loading platform lifting device which includes a loading platform which utilizes lifting operation of the loading platform to change its posture to a standing posture and eases limitations on an attachment position of a member provided between left and right posts.SOLUTION: A loading platform lifting device 100 includes: a pair of posts 2 erected at a vehicle T; sliders 3 which move up or down in the posts 2; and a loading platform 1 which is pivotally supported by the sliders 3 and may rotate between a horizontal posture and a standing posture. A posture of the loading platform 1 is changed from the horizontal posture to the standing posture through first engagement parts 41 provided in the loading platform 1 and second engagement parts 42 provided at the posts 2. The invention is applied to the loading platform lifting device 100. The first engagement part 41 is provided at a side part of the loading platform 1 which faces the post 2 in a direction substantially perpendicular to a width direction. The second engagement part 42 is provided at a standing surface part or an interior part of each post 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a load receiving platform lifting apparatus that includes a load receiving platform that moves up and down along a post erected on a vehicle, and that uses the lifting operation to place the load receiving platform in an upright posture.

As a load receiving table lifting device equipped with a load receiving table that is in a standing posture when the vehicle is running, for example, by using the lifting operation of the load receiving table that moves up and down along a pair of left and right posts as shown in FIG. There are things that change their posture.
In the load receiving platform lifting / lowering device 90 of FIG. 5A, the posture of the load receiving platform 92 is changed when it is raised to the vicinity of the lower ends of the cross members 93 installed on the left and right posts 91.

This posture change is performed by engaging a hook 94 provided so as to be able to protrude and retract from the base end portion 92a of the load receiving base 92 and a lever 95 provided so as to be swingable in the vehicle front-rear direction below the cross member 93. . As shown in the enlarged view, when the horizontal load receiving platform 92 is raised, a hook 94 projecting forward of the vehicle is provided at the front end portion of the lever 95 in a suspended state and engages with a pin 95b whose longitudinal direction is the vehicle width direction. . Even when the hook 94 and the pin 95b are engaged, the ascending operation of the load receiving base 92 is continued as it is. For this reason, the lever 95 is pulled and rotated to the vehicle rear side around the shaft support portion 95a, and the hook 94 is also pulled by the engaging portion with the pin 95b. As a result, the loading platform 92 starts to rotate from a horizontal posture and changes its posture to an upright posture (arrow A92) as indicated by a two-dot chain line (for example, Patent Document 1).
With the load receiving table lifting device 90, it is possible to omit the work of changing the posture from the horizontal posture to the standing posture while the operator directly supports the load receiving stand 91 by hand.

JP 2012-006454 A

  However, when the load receiving platform 92 stands up with the hook 94 and the lever 95 engaged as in the load receiving device lifting / lowering device 90, the mounting position of the tail lamp and the bumper of the vehicle is restricted, and the left and right posts 91 are sandwiched. The members provided in the area are affected.

  For example, as shown in the schematic plan view of FIG. 5B, when the tail lamp 96 is installed in the vicinity of the post 91 on the left side of the vehicle, the obstruction of the irradiation light is prevented from intervening in the left and right predetermined angles S91 and S92. There is a need. On the other hand, the hook 94 and the lever 95 are provided between the post 91 and the tail lamp 96, specifically, at a position closer to the center of the vehicle by a horizontal distance L91 from the post 91, and therefore the schematic side surface of FIG. As shown in the figure, the tail lamp 96 is installed at a position lower than the hook 94 and the lever 95 so that the irradiation light is not obstructed. Further, with respect to the irradiation light of the tail lamp 96, it is necessary to prevent the obstructions from intervening in the predetermined angles S93 and S94, so that the tail lamp 96 is installed at a position separated by a predetermined distance from the standing load receiving base 92. Is done.

  As a result, as shown in the schematic rear view of FIG. 5D, the tail lamp 96 is installed at a low position via the stay 97 suspended by a predetermined length L92, and the ground height is also reduced.

  Further, in the case of the configuration including the left and right posts 91 as in the load receiving platform lifting device 90, a bumper may be provided at a position below the cross member 63 between the posts 91, although not shown. In addition, there may be provided a safety bar or the like for preventing a baggage or the like protruding from the load receiving table 92 from interfering with other members while the load receiving table 92 is raised. The mounting positions of these bumpers and safety bars are largely limited by hooks 94 and levers 95 provided between the left and right posts 91.

  The present invention has been made in view of these points, and includes a load receiving table that changes its posture to a standing posture using the ascending operation of the load receiving table, and can relieve restrictions on the mounting position of members provided between the left and right posts. The purpose is to provide a loading platform lifting device.

  In the present invention, the following means are used to solve the above problems.

  A pair of posts erected on a vehicle; a slider that moves up and down in the post; and a load receiving platform that is pivotally supported by the slider and is rotatable between a horizontal posture and a standing posture. The present invention is directed to a load receiving platform lifting apparatus in which the load receiving platform is changed from a horizontal posture to a standing posture through a first engaging portion and a second engaging portion provided on the load receiving stand. The load receiving platform is provided with the first engaging portion on a side portion facing the post in a direction substantially perpendicular to the width direction thereof, and the second engaging portion on an elevation surface portion or an inward portion of the post. It is set as the structure by which the part is provided.

  In the above configuration, the first sub-configuration includes a rotation lever whose one end portion is rotatably supported with respect to one of the first engagement portion or the second engagement portion. An end portion is configured to be locked to the other of the first engagement portion or the second engagement portion.

  Further, the first engagement portion is provided in a protruding state on the outer side in the width direction of the load receiving platform, and the second engagement portion is provided on a vehicle rear surface portion of the standing surface portion of the post. It is good also as a structure currently provided.

  Further, unlike the first sub-configuration, as the second sub-configuration, the first engagement portion is a hook portion that can partly move up and down in the post below the slider, and the second engagement portion Is a rotating part that is rotatably supported on the inside of the post with the width direction of the post as an axial direction and can be switched between a suspended state and a horizontal state. It can also be set as the structure located so that it may be located ahead and may engage with the hook part which raises / lowers in the said horizontal state.

  With the first engagement portion and the second engagement portion that are used for the standing operation of the cargo cradle according to the present invention, the mounting limitation of members provided in the region sandwiched between the left and right posts is greatly relaxed.

  Since the first engaging portion is provided on the side portion of the load receiving table and facing the post, the first engaging portion does not obstruct the region between the left and right posts. Further, the second engagement portion is provided on the vertical surface portion or the inward portion of the post, and is not provided near the center in the vehicle width direction in the region sandwiched between the left and right posts. The area between the left and right posts is not obstructed in the same way as the section.

It is a side view of the load receiving table raising / lowering apparatus which concerns on 1st Embodiment of this invention. It is a model side view which shows the attitude | position change of the goods receiving stand which concerns on 1st Embodiment of this invention. It is a schematic diagram which shows the attachment position of the tail lamp which concerns on 1st Embodiment of this invention. It is a side view which shows the raising operation | movement and standing-up operation | movement of the load receiving table raising / lowering apparatus which concerns on 2nd Embodiment of this invention. (A) is a side view of the load receiving table elevating device according to the conventional embodiment, and (b) to (d) are schematic views showing the attachment position of the tail lamp according to the same embodiment.

  An example of an embodiment of a load receiving table lifting apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 is a side view of the load receiving table lifting apparatus 100 according to the first embodiment of the present invention. FIG. 1 (a) is a view when the load receiving table 1 is moved up and down, and FIG. This is the state when the posture is changed.

  The load receiving platform lifting / lowering device 100 is mounted on the rear part of the vehicle T, and is inserted in a pair of left and right posts 2 slidably in the vertical direction via rollers 2a and 2b. A sub post 20, a slider 3 that slides in the sub post 20 in the vertical direction via upper and lower rollers 3 a and 3 b, and a load receiving platform 1 that is pivotally supported by the slider 3 are provided. Further, the load receiving table lifting / lowering device 100 includes a posture changing unit 4 that changes the posture from a horizontal posture to a standing posture at a predetermined position by using the lowering operation of the load receiving stand 1. In FIG. 1, the post 2 is indicated by a one-dot chain line, and the inner member of the post 2 is indicated by a solid line for convenience of explanation of the operation of the load receiving stand 1.

  The post 2 has an upright portion 20 standing in the front-rear direction and the left-right direction, and the sub post 201 has an upright portion 201 standing in the front-rear direction and the left-right direction. A cutout groove (not shown) whose longitudinal direction is the vertical direction is provided in each of the vehicle rear surface portions on the vehicle rear side among the standing surface portions 20 and 201 of the post 2 and the sub post 20.

A part of the slider 3 protrudes rearward through the notch groove, and a shaft support portion 5 that supports the load receiving platform 1 is provided at the protruding portion. The load receiving platform 1 is centered on the shaft support portion 5. It can be rotated between a horizontal posture and a standing posture.

  Between the left and right posts 2, a cross member 6 having a longitudinal direction in the vehicle width direction is installed. The cross member 6 accommodates a hydraulic cylinder (not shown), and a wire (not shown) is attached to the hydraulic cylinder. As is known, this wire is pulled out from the cross member 6 to the inside of the post 2 with one end attached to the rod end of the hydraulic cylinder, folded back by the upper pulley C1 of the post 2, It is stretched with the ends fixed. When the hydraulic cylinder is extended, the wire is attracted and the slider 3 is moved upward, and when the hydraulic cylinder is contracted, the wire is drawn out and the slider 3 is moved downward.

  1A moves up and down along the post 3 (along the vertical direction) in the illustrated horizontal posture as the slider 3 moves up and down. When loading and unloading a load between the ground and the loading platform 2, the loading platform 1 is moved up and down with the height position substantially the same as the floor surface of the loading box B as an upper limit position (state shown in the figure).

  The sub post 20 is supported by the slider 3 to be accommodated, and descends following the descending of the slider 3. When the slider 3 descends from the upper limit position of the load receiving stand 1 shown in FIG. 1A, the upper and lower rollers 2a and 2b also roll in the sub post 20 and descend in the vertical direction. When the sub post 20 descends and touches the ground, only the slider 3 descends. At this time, the upper and lower rollers 3a and 3b provided on the slider 3 roll, and the slider descends in the vertical direction until the load receiving platform 1 is grounded.

  After completion of the loading and unloading operation, the posture changing unit 4 is set to a functioning state in order to change the posture of the cargo receiving platform 1 to the standing posture. The posture changing unit 4 includes a first engagement portion 41 provided on the side surface portion 11 on the side portion of the load receiving platform 1 and a vehicle rear surface portion (hereinafter referred to as “rear stand upright”) which is one of the vertical surface portions 21 of the post 2. The second engagement portion 42 provided on the surface portion ”) 21R, and the first engagement portion 41 and the rotation lever 43 that is detachably supported at both ends with respect to the second engagement portion 42 are provided. . The “side portion” of the load receiving platform 1 is an end portion in the width direction of the load receiving platform 1 and means not only the side surface portion 11 but also the end portion of the load placement surface on which the load is placed. .

  The first engaging portion 41 is a pin-like protruding portion that protrudes outward from the vehicle with the width direction (vehicle width direction) of the load receiving platform 1 as a longitudinal direction, and the vehicle front-rear direction (in the drawing) (In the left-right direction). The shaft support portion 5 that pivotally supports the load receiving platform 1 is located further rearward than the rear vertical surface portion 21R of the post 2, and is provided at a position overlapping the rear vertical surface portion 21R when viewed from the rear of the vehicle. For this reason, the load receiving platform 1 is also provided so that the side portion overlaps with the rear vertical surface portion 21R when viewed from the rear of the vehicle, and the first engagement portion 41 is similarly positioned so as to overlap with the rear vertical surface portion 21R. Is provided.

  The second engagement portion 42 is a fixed bracket fixed to the outer surface of the rear vertical surface portion 21 </ b> R, and is provided on the upper portion of the post 2. The second engagement portion 42 is provided with a substantially circular hole 42a.

  The rotating lever 43 is a metal member having a predetermined rigidity extending in one direction, and has a size that can be installed on the first engaging portion 41 and the second engaging portion 42 as shown in FIG. . The rotary lever 43 is pivotally supported at one end 43a so as to be rotatable about the second engagement portion 42, and has a hook shape in which the other end 43b can be locked to the first engagement portion 41. It is comprised so that it may become.

  The one end portion 43 a is provided with a pivot portion (not shown) whose longitudinal direction is the vehicle width direction, and this pivot portion is inserted into the hole portion 42 a of the second engagement portion 42. The tip of the pivot portion is threaded, and the retaining member of the pivot portion is screwed into the hole portion 42a while being inserted. Since the retaining member is screwed, the rotating lever 43 is pivotally supported around the second engaging portion 42 without being removed from the second engaging portion 42. Then, when the screwing of the one end portion 43a to the second engaging portion 42 is released, the locked other end portion 43b can be easily detached from the first engaging portion 41.

  Next, the operation of changing the posture of the load receiving platform 1 in the horizontal posture to the standing posture will be described with reference to FIG. In this figure, as in FIG. 1, the post 2 is indicated by a one-dot chain line, and the inner member is indicated by a solid line.

  In a state where the rotation lever 43 is installed on the first engagement portion 41 and the second engagement portion 42, the slider 3 is lowered. At this time, since the second engaging portion 42 is fixed to the post 2, the one end portion 43a of the rotating lever 43 does not move in the vertical direction. On the other hand, the slider 3 descends in the vertical direction (arrow A11). At this time, the load receiving platform 1 in which the first engagement portion 41 is locked to the other end portion 43b of the rotation lever 43 and the base end portion 1a is supported by the shaft support portion 5 is moved by the movement of the shaft support portion 5 and the first engagement. It is affected by the pulling force of the rotating lever 43 provided via the joint portion 41 and the second engaging portion 42. That is, the base end portion 1 a of the load receiving platform 1 is pulled to the lower side of the post 2 and pivots downward toward the rear of the vehicle, and the rotation lever 43 pivots clockwise around the second engagement portion 42. (Arrow A21), the front end 1b of the load receiving platform 1 rotates upward (arrow A22). When the slider 3 continues to descend (arrow A12), the load receiving platform 1 assumes the standing posture (solid line portion) shown in FIG.

  When the posture of the load receiving platform 1 is changed from the horizontal posture to the standing posture, the slider 3 descends and is positioned below the cross member 6. Therefore, the engagement state in which the one end portion 43a of the rotary lever 43 and the second engagement portion 42 which are in the upright posture are pivotally supported is released, and the other end portion 43b is also locked by the first engagement portion 41. The engaged state is released, and the restraint of the load receiving platform 1 by the rotation lever 43 is released. Then, the slider 3 is raised again (arrow A13). The load receiving stand 1 rises upward along the vertical direction while keeping the standing posture together with the slider 3 (arrow A23). When the load receiving platform 1 rises and becomes a standing state (a two-dot chain line portion) at a desired height, the ground clearance can be sufficiently secured, and the vehicle can travel in a stable state.

  Since the posture changing unit 4 that functions to change the posture of the load receiving platform 1 is provided in a region overlapping the post 2 when viewed from the rear of the vehicle (a region facing the post 2 in the vehicle front-rear direction), Does not disturb the area. Therefore, even if it compares with the load receiving stand raising / lowering apparatus which raises a load receiving stand manually, an attachment position is not restrict | limited with respect to the member attached between the left-right post 2 similarly. For this reason, as shown in the schematic diagram of FIG. 3, it is possible to ensure a predetermined visibility in the tail lamp R and to prevent the ground height from being suppressed.

  Specifically, as shown in the schematic plan view of FIG. 3A showing the positions of the post 2 and the tail lamp R, in a state where the tail lamp R is set apart from the post 2 by a predetermined distance L1, The posture changing unit 4 is not provided between them, and the tail lamp R can secure predetermined irradiation angles S1 and S2 on the left and right respectively. Although the second engagement portion 42 is provided on the rear vertical surface portion 21R, the second engagement portion 42 is provided on the upper portion of the post 2 and does not hinder the irradiation light of the tail lamp R.

  Since the predetermined angles S1 and S2 can be ensured, the irradiation angle in the vertical direction of the tail lamp R at the position shown in the side view of FIG. 3B without moving the tail lamp R in the vertical direction. Also, sufficient angles S3 and S4 can be secured respectively.

  As a result, as shown in the rear view of FIG. 3C, the tail lamp R can be installed at a position away from the cross member 6 by a desired vertical distance H1, and the tail lamp R does not need to be installed at a low position, so that visibility is sufficient. Therefore, it is possible to prevent a drop in the ground height while securing the same.

  As shown in FIG. 3, the posture changing unit 4 that can relax the restriction on the attachment position of the tail lamp R has the same effect not only on the tail lamp R but also on other members. For example, even when the bumper is installed on the left and right posts 2 below the cross member 6 (for example, Japanese Patent No. 3892448), the posture changing unit 4 is not provided between the left and right posts 2. Therefore, the mounting position of the bumper is not limited. In addition, when the object placed on the load receiving platform 1 protrudes from the base end portion 1a (see FIG. 2A) to the front of the vehicle, the object to be brought into contact with the load receiving platform 1 is raised. Even in the case of a known safety bar (for example, Japanese Patent No. 4212589) provided with the vehicle width direction as a longitudinal direction along the lower surface of the cross member 6, the mounting position thereof is not limited.

  Furthermore, since the lowering operation of the slider 3 is used to change the posture of the load receiving platform 1, it is useful for reducing the load on the motor used for extending and retracting the wire and the hydraulic cylinder. As is known, the expansion and contraction of the hydraulic cylinder is performed by supplying and discharging hydraulic oil by driving a motor. When the slider 3 is raised, the motor is driven ON, whereas when the slider 3 is lowered, the motor is driven OFF. (For example, Unexamined-Japanese-Patent No. 2010-188985). When the propulsive force of the movement of the slider 3 along the vertical direction is used for changing the posture of the load receiving table 1 as in the present embodiment, the posture changing unit is used when changing the posture of the load receiving stand 1 to the standing posture against gravity. 4 is heavily loaded. That is, when changing the posture of the load receiving stand 1 in a standing posture as compared to the lifting / lowering operation of the load receiving stand 1 performed in a horizontal posture, it is used for the wire on which the slider 3 is suspended, and for feeding or drawing the wire. The motor is loaded. In this embodiment, the posture change of the load receiving platform 1 is performed when the slider 3 is lowered when the motor is driven OFF, and the posture change of the load receiving stand 1 is performed when the slider 3 is driven when the motor is turned ON. Compared with the configuration in which the operation is performed, it is possible to suppress a sudden change in hydraulic pressure with respect to the hydraulic oil supplied and discharged. Further, since the motor is driven OFF, the driving sound of the motor is reduced, which is preferable. In particular, the longer the load receiving platform 1 is, the greater the load applied to the posture changing unit 4 due to the posture change to the standing posture, so the effect of suppressing this load becomes more prominent.

  Moreover, if the 1st engaging part 41 and the 2nd engaging part 42 are the structures provided in the outer surface of the cargo receiving stand 1 and the post | post 2, at least 1st engaging part 41 and the 2nd engaging part 42 are included. The first engagement portion 41 and the second engagement portion 42 can be appropriately installed with respect to a load receiving table lifting device (for example, a conventional load receiving table lifting device that has already been used).

  As described above, in the load receiving platform lifting apparatus 100 according to the present embodiment, the posture changing unit 4 is provided in the region facing the post 2 in the vehicle front-rear direction, and the rotation lever 43 is the first engaging unit. 41 and the second engagement portion 42 are detachable, but the rotation lever 43 may be detachable only to either the first engagement portion 41 or the second engagement portion 42. In addition, one of the rotating levers 43 is pivotally supported and the other is locked (see FIG. 1B). However, one of the rotating levers 43 may be locked with the other while being locked. Of course, both may be pivotally supported or locked.

  In addition, although the 1st engaging part 41 was fixed to the side part 11 of the load receiving stand 1 and the 2nd engaging part 42 was set as the structure fixed to the back elevation surface part 21R, As long as the effect of not inhibiting the region is produced, a configuration provided in another part may be used.

  For example, with respect to the first engagement portion 41, the above-described effects can be obtained as long as it is a region on the side of the load receiving tray 1 that overlaps the post 2 when viewed from the rear of the vehicle. A configuration provided in the region can also be applied.

  The second engagement portion 42 may be configured not only in the rear vertical surface portion 21R but also in the vertical surface portion 21 that is the outer surface facing the vehicle width direction outer side in the post 2. In particular, even when the second engaging portion 42 is provided on the upright surface portion 21 that is the outer surface, the second engagement member has a shape in which the portion where the rotation lever 43 is pivotally supported is the rear of the post 2 in the vehicle front-rear direction. If it is a joint part, the effect equivalent to the 2nd engaging part 42 shown in FIG.1 and FIG.2 can be acquired. On the contrary, the post 2 may be provided on the upright portion 21 that is the inner surface facing the inner side in the vehicle width direction. In the case of the configuration in which the second engaging portion 42 is provided on the upright surface portion 21 serving as the inner surface, the second engaging portion 42 is positioned between the left and right posts 2, but the rotating lever 43 is a cross member. Therefore, the attachment position of the member installed below the cross member 6 is not limited.

  In this embodiment, when raising the load receiving stand 1 from the horizontal posture to the standing posture, the slider 3 is lowered to a position below the cross member 6, but the rising end position is set further upward than FIG. 1. Thus, when the posture is changed from the horizontal posture to the standing posture, a configuration in which a suitable ground height during traveling of the vehicle T can be secured may be adopted. In this case, the slider 3 is not raised again after the posture change.

A second embodiment, which is different from the first embodiment in which the posture of the load receiving platform 1 in the horizontal posture is changed to the standing posture using the lowering operation of the slider 3 described above, will be described with reference to FIG. In the second embodiment, parts having different configurations will be mainly described, and parts having the same configurations will be described using the same reference numerals. In FIG. 4, as in FIGS. 1 and 2, the post 2 is indicated by a one-dot chain line, and the inner member is indicated by a solid line.
The load receiving table elevating device 200 according to the present embodiment includes a posture changing unit 240 that changes the posture of the load receiving stand 1 in a horizontal posture to a standing posture using the ascending operation of the slider 3.

  FIG. 4 (a) shows a load receiving stand 1 that is used for loading and unloading luggage while keeping the horizontal posture. The posture changing portion 240 includes a first engaging portion 241 that extends from the shaft support portion 5 at the left end portion of the load receiving platform 1 toward the vehicle front side (left side in the figure), the inner side of the post 2 and the cross member 6. And a second engaging portion 242 provided in a vertically lowered state at the low position. When the first engagement portion 241 and the second engagement portion 242 are engaged, the posture change of the load receiving platform 1 from the horizontal posture to the standing posture is performed.

  As shown in FIG. 4A, the first engaging portion 241 is a plate member fixed to the side surface of the load receiving platform 1 with the longitudinal direction of the vehicle as the longitudinal direction, and the front end portion 241a stands up vertically. have. The front end 241a is inserted inward from the rear of the post 2, and this insertion portion has a length LP1 in the horizontal direction.

  The second engagement portion 242 is rotatably supported by the vertical surface portion 21 on the outer side in the vehicle width direction (the vertical surface portion in FIG. 4A) 21 at the post 2 at the low position of the cross member 6. The second engaging portion 242 has a shaft portion 242a fixed to the outer vertical surface portion 21 with the vehicle width direction as the longitudinal direction, and can rotate with the longitudinal direction of the shaft portion 242a as the axial direction, with one direction as the longitudinal direction. Rotating part 242b.

  As shown in the figure, when the load receiving platform 1 is raised for loading and unloading, the rotating portion 242b of the second engaging portion 242 is located at the front end 241a of the first engaging portion 241 inside the post 2. Is stored in the front side region (length LP2) in a posture in which the vertical direction is the longitudinal direction. At this time, an adjacent space 242S is formed on the vehicle rear side (right side in the drawing) of the shaft portion 242a. Therefore, when the slider 3 rises in the state shown in the drawing, the first engagement portion 241 does not engage with the second engagement portion 242, and the front end portion 241a passes through the adjacent space 242S and is indicated by a two-dot chain line portion. It can be raised to the position.

  When the load receiving platform 1 is changed to an upright posture after the loading and unloading operation is completed, the rotating portion 242b of the second engaging portion 242 is lowered from the vertically downward state around the shaft portion 242a. It is rotated counterclockwise so as to be in a horizontal posture as shown in 4 (b). Although not shown, the rotating portion 242b is provided with an operation lever that protrudes outward in the vehicle width direction. This operation lever is provided on the vertical surface 21 of the post 2 on the outer side in the vehicle width direction and is approximately 1 / It protrudes to the outside of the vehicle through a notch cut out in a four-circle shape. An operator can hold the operation lever and rotate the rotating portion 242b. The rotating portion 242b whose posture has been changed to the horizontal posture is in a state lying on the adjacent space 242S, and is positioned above the front end portion 241a of the first engaging portion 241 in the vertical direction. That is, the region where the front end 241a rises is closed by the rotating portion 242b.

  If the slider 3 is lifted in a state where the rotating portion 242b is in the horizontal posture, the front end 241a abuts on the rotating portion 242b during the rising, and the rising operation of the front end 241a is restricted. . However, since the upward movement of the slider 3 is continued, as shown in FIG. 4B, the load receiving platform 1 is rotated counterclockwise as shown by a two-dot chain line, and the standing posture shown by a solid line. It becomes. In this embodiment, the roller 3a provided on the upper portion of the slider 3 is in contact with the stopper ST provided on the post 2, and the ascending operation of the slider 3 is regulated by these contacts.

  Accordingly, the first engaging portion 241 and the second engaging portion 242 engage with each other at the position inward of the post 2 and at a position lower than the cross member 6, so that the load receiving platform 1 is in the middle of ascending the slider 3 and the load receiving platform 1. The posture is changed. At this time, since the posture changing unit 240 is not positioned between the left and right posts 2, the attachment position of the member between the left and right posts 2 is not limited as in the first embodiment. The second engaging portion 242 is configured such that the rotating portion 242b is rotated around the shaft portion 242a. However, if there is a space in front of the post 2, the second engaging portion 242 in a horizontal posture is provided. It may be configured to be slidable in the front-rear direction while maintaining a horizontal posture.

As described above, in the first embodiment, the posture change portion including the rotation lever 43 in addition to the first engagement portion 41 and the second engagement portion 42 is configured to change the posture of the load receiving platform 1. In 2 embodiment, although it was set as the attitude | position change part 240 in which the 1st engaging part 241 and the 2nd engaging part 242 directly engage, and functioning, in any case, the area | region between the right-and-left post | mailbox 2 is made. Has the effect of not inhibiting. Moreover, although the attitude | position change parts 4 and 240 which concern on both embodiment were set as the structure provided in the left end part, what is necessary is just to be provided in at least any one of right-and-left both ends. In addition, when provided at both the left and right end portions, the load of the wire fixed to the slider 3 can be reduced as compared with the case where it is provided only on either the left or right side. When it is provided only on one side, the load when shifting from the ascending operation of the load receiving platform 1 to the rotation operation for changing the posture is concentrated on the wire stretched on the one side, but provided on both the left and right sides. Is effective in reducing the load. Even if both the first engaging portion 41 and the second engaging portion 42 are provided on both sides of the left and right end portions, they are not provided between the left and right posts 2. This region is not inhibited.
In addition, any configuration can be applied not only to the load receiving table lifting device provided at the rear of the vehicle, but also to a device provided at the side of the vehicle.

  INDUSTRIAL APPLICABILITY The present invention is useful for all load receiving table lifting / lowering devices that change the posture of a load receiving table from a horizontal posture to a standing posture using the ascending operation of the load receiving table.

DESCRIPTION OF SYMBOLS 1 Load receiving stand 2 Post 3 Slider 4, 240 Posture change part 5 Shaft support part 6 Cross member 41,241 1st engaging part (posture change part)
42, 242 second engaging portion (posture changing portion)
43 Rotating lever (Attitude change part)
T Vehicle B Cargo box R Tail lamp 100, 200 Loading platform lifting device 8 Shaft support 9 Cross member 2a Upper surface (loading platform)
5a Gate arm 61 First engagement portion 62 Second engagement portion 62a Lower surface (second engagement portion)
62b Vehicle rear surface (second engaging portion)
71 Rotating bracket 72 Fixed bracket 7S Fixed bracket 71a Shaft 701 Operation plate 9a Upper surface (cross member)
T Torsion bar R Tail lamp 100 Loading platform lifting device

Claims (4)

A pair of posts erected on a vehicle; a slider that moves up and down in the post; and a load receiving platform that is pivotally supported by the slider and is rotatable between a horizontal posture and a standing posture. A load receiving platform lifting device in which the load receiving platform is changed in posture from a horizontal posture to a standing posture via a first engaging portion and a second engaging portion provided in the receiving tray,
In the direction substantially perpendicular to the width direction of the load receiving table, the first engaging portion is provided on a side portion facing the post,
The load receiving platform elevating device, wherein the second engaging portion is provided on an elevation surface portion or an inward portion of the post. One end of the first engagement portion or the second engagement portion has a rotation lever that is rotatably supported at one end,
The load receiving platform lifting / lowering device according to claim 1, wherein the rotation lever has the other end portion locked to the other of the first engagement portion or the second engagement portion. The first engaging portion is provided in a protruding state on the outer side in the width direction of the load receiving platform,
The said 2nd engaging part is provided in the vehicle rear surface part among the said standing surface parts of the said post. The load receiving stand raising / lowering apparatus of Claim 2 characterized by the above-mentioned. The first engaging portion is a hook portion that can partly move up and down in the post below the slider,
The second engagement portion is a rotation portion that is rotatably supported with the width direction of the post as an axial direction inside the post and can be switched between a suspended state and a horizontal state,
2. The consignment according to claim 1, wherein the rotating part is provided so that a support part thereof is positioned in front of the hook part and engages with a hook part that moves up and down in the horizontal state. Stand lifting device.

Images