JP2005119337A - Load receptacle table fastening structure of load receptacle table elevation device of intra-platform accommodation type - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a load receptacle table fastening structure of a load receptacle table elevation device of intra-platform accommodation type capable of quickly fastening a load receptacle table stably in the upright position using a simple constitution and through simple operations. <P>SOLUTION: The load receptacle table fastening structure of the load receptacle table elevation device of intra-platform accommodation type is configured so that the load receptacle table 3 installed in continuity to the bottom of a slider 42 is arranged so as to be capable of being elevated and sunk between a platform and the ground by an elevating/sinking mechanism 4, that the load receptacle table 3 and the elevating/sinking mechanism 4 are arranged turnably between the accommodation position inside the platform and a working position outside the platform, and that the load receptacle table 3 is arranged rotatable to the vertical position and the rising position and also capable of being fastened in the rising position by a fastening means 5, wherein the fastening means 5 includes an engaging pin 52 protruded sideways from a middle part on one side face of the load receptacle table 3, a first fastening means 51 mounted turnably on a column 41 and including an locking piece 53 capable of being locked with the locking pin 52, a fastening hole 56 formed in the load receptacle table 3, and a second fastening means 55 protruded from the column 41 consisting of a fastening pin 57 to be inserted in and locked by the fastening hole 56 in the rising position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a load receiving platform lifting device in which a load receiving platform is provided so as to be able to move up and down between a loading platform and the ground. It relates to the tying structure.

  Conventionally, this type of loading platform lifting device for storage in the loading platform is provided so as to be rotatable between a storage position in the loading platform and a work position outside the loading platform, with a pivot post standing on the loading platform side as the center, In the work position, the load receiving platform is movable up and down between a most elevated position substantially flush with the loading platform and a most lowered position where the load receiving platform contacts the ground.

  The load receiving platform is provided so as to be rotatable in the vertical direction between the horizontal position and the standing position, and when rotating between the storage position and the working position, the load receiving table is disposed at the standing position. The above-described elevating operation is performed by rotating from the standing position to the horizontal position while being arranged at the work position (see, for example, Patent Document 1).

Such a load receiving platform lifting / lowering device is provided with a securing means for stably holding the load receiving stand in an upright position during traveling or the like. As the securing means, the locking device as shown in Patent Document 2 prevents the load receiving table from rotating from the standing position to the horizontal position, and prevents the load receiving table from lowering due to the lowering of the slider due to oil leakage or the like. I try to stop it. Specifically, the lock device is composed of a lock lever provided on the load receiving side and a locking piece provided on the fixed side, and locks the load receiving base by locking the lock lever to the locking piece. doing.
Japanese Utility Model Publication No. 6-39574 JP-A-11-105749

  However, in the conventional lock device, when the lock lever is locked to the locking piece, it is necessary to rotate the lock lever while pulling it against the urging force of the spring and lock it to the locking piece. There is a problem that the operation is complicated and a force that resists the urging force of the spring is required, which requires extra labor.

  The present invention has been made in view of the above-described problems, and the object of the present invention is to store in a cargo bed that can quickly and stably lock the cargo tray in an upright position with a simple operation with a simple configuration. An object of the present invention is to provide a load carrier securing structure in a type of load carrier lifting device.

  In order to achieve the above object, the load receiving platform securing structure in the load receiving platform lifting apparatus of the invention according to claim 1 is a lifting mechanism in which a slider is slidably provided in a vertical direction in a support column. The load receiving platform connected to the lower end of the slider can be moved up and down between the loading platform and the ground, and the load receiving platform and the lifting mechanism are centered on the swivel post erected in the loading platform. In addition to being provided so as to be able to rotate in a horizontal direction between a storage position disposed outside and a work position outside the loading platform, and further, the loading platform can be pivoted in a vertical direction between a horizontal position and a standing position. In the stowage type load receiving base lifting apparatus in which the load receiving platform is secured by the securing means at the standing position, the securing means is configured to rotate the standing position of the load receiving platform from the standing position to the horizontal position side. A first securing means to prevent movement; A second securing means for preventing downward movement of the load receiving table, wherein the first securing means includes a locking pin projecting laterally from a middle portion of one side surface of the load receiving table; The second securing means includes a securing hole provided in a load receiving table, and a protruding piece provided on the support stand. It consists of a lashing pin that is inserted and locked into the lashing hole at the position.

  According to the present invention, it is possible to easily and quickly prevent the pivot from the standing position to the horizontal position in the standing position by simply rotating the locking piece and locking it to the locking pin. In addition, the downward movement of the load receiving table due to oil leakage or the like can be prevented, and the operation burden on the operator can be reduced as much as possible.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a schematic configuration of a load receiving table elevating device of a storage type in the loading platform.

  In FIG. 1, reference numeral 1 denotes a loading platform of a cargo vehicle, and the loading platform 1 is provided with a loading platform elevating device 2. The load receiving table elevating device 2 includes a load receiving table 3 and an elevating mechanism 4 for moving the load receiving table 3 up and down.

  Specifically, as shown in FIGS. 2 and 3, the elevating mechanism 4 includes a pair of left and right columns 41, 41 provided in parallel in the vertical direction via two upper and lower connecting members 41 a, 41 b. , 41 is provided so that the slider 42 can be raised and lowered.

  Each slider 42 is provided with a lower end portion protruding from the support column 41, and a base end portion of the load receiving platform 3 is connected to the lower end portion. An extension cylinder 45 is connected between a connecting member 43 that connects the left and right sliders 42 and an upper connecting member 41 a that connects the columns 41.

  A first guide roller 46 and a second guide roller 47 are provided at the upper end portion of the slider 42. When the slider 42 is raised and lowered, the first guide roller 46 is in front of the column 41 as shown in FIG. The second guide roller 47 is configured to roll on the inner surfaces of the left and right side walls as viewed from the front of the support column 41.

  In addition, a third guide roller 48 and a fourth guide roller 49 (see FIG. 4) are also provided at the lower portion of the support column 41, and the third guide roller 48 moves on the outer surface of the inner side wall of the slider 42 when the slider 42 moves up and down. The fourth guide roller 49 rolls on the outer surface of the rear wall as viewed from the front of the slider 42.

  By providing the guide rollers 46 to 49 in this way, the slider 42 is smoothly moved up and down.

  As shown in FIG. 4, the load receiving platform 3 is arranged at a lower end portion of a slider 42 via a hinge 31 so that it can be disposed between a standing position that stands vertically and a horizontal position (see a two-dot chain line in FIG. 4). It is supported rotatably.

  As shown in FIG. 4, the support structure of the load receiving platform 3 for the slider 42 projects obliquely upward toward the distal end portion of the bracket 32 protruding from the proximal end portion of the load receiving platform 3 and the lower end portion of the slider 42. A tip end portion of the provided bracket 42 a is rotatably connected by a hinge 31. Thus, by supporting the load receiving table 3 so as to be rotatable, the position of the hinge 31 serving as the rotation center becomes higher than the lower end of the slider 42, and when the load receiving table 3 is arranged in a horizontal position, the load receiving table 3 3 is held by a stopper bolt 33 projecting horizontally at the lower end of the slider 42 so that the horizontal position is maintained.

  Further, the load receiving platform 3 is secured and held by the securing means 5 including the first securing means 51 and the second securing means 55 in the standing position.

  The first securing means 51 prevents rotation of the load receiving platform 3 from the standing position to the horizontal position, and includes a locking pin 52 projecting laterally from one side of the side of the load receiving platform 3; It is composed of a locking piece 53 that is rotatably provided on the column 41 and can be locked to the locking pin 52.

  The second securing means 55 prevents the downward movement of the load receiving table 3 due to the lowering of the slider 42 due to oil leakage or the like. The second securing means 55 protrudes from the securing hole 56 provided in the load receiving table 3 and the column 41. The lashing pin 57 is inserted and locked in the lashing hole 56 in the retracted position.

  Accordingly, when the load receiving platform 3 is arranged from the horizontal position to the standing position, the securing pin 57 is inserted into and locked in the securing hole 56, so that the load receiving platform 3 can be automatically operated only by the rotation operation of the load receiving platform 3. 3 is prevented from moving downward, and the locking piece 53 is rotated from the hanging position indicated by a two-dot chain line, and is locked to the locking pin 52 from above, so that the horizontal position from the standing position of the load receiving platform 3 can be obtained. The rotation to the position side can be prevented. That is, according to the securing means 5, the rotation of the load receiving platform 3 from the standing position to the horizontal position side can be prevented by only a simple operation of locking the locking piece 53 to the locking pin 52. In addition, the downward movement of the load receiving platform 3 can be prevented, and the load receiving platform 3 can be stably secured in the standing position during traveling or the like.

  In addition, when the locking piece 53 is locked to the locking pin 52, an appropriate holding mechanism is provided so that the locking piece 53 is not carelessly detached from the locking pin 52 due to vibration during traveling or the like. preferable.

  On the other hand, a turning post 6 is erected at a rear corner of the loading platform 1 (right corner with respect to the traveling direction in the drawing), and the turning side of the turning post 6 is adjacent via an upper and lower turning arm 61. One column 41 is connected. As a result, the entire load receiving platform lifting / lowering device 2 including the load receiving platform 3 and the lifting / lowering mechanism 4 is provided to be rotatable about the turning post 6.

  Further, as shown in FIG. 1, the rear part of the loading platform 1 is openable and closable by a door-opening door 11. As shown in FIG. 3, the opening / closing door 11 on one side facing the load receiving platform lifting / lowering device 2 is integrally connected to the load receiving platform lifting / lowering device 2 through the connecting member 41 b below the support column 41 and the connecting rod 12. Both can be separated by removing the connecting rod 12.

  That is, when the opening / closing door 11 is opened in a state where the opening / closing door 11 and the load receiving platform lifting / lowering device 2 are integrally connected by the connecting rod 12, the load receiving platform lifting / lowering device 2 is centered on the turning post 6 in conjunction with the opening. It will be arranged outside the loading platform 1 from inside the loading platform 1.

  In addition, the code | symbol A shown in FIG. 1 is a cover which covers the whole between the support | pillar 41 which provided the expansion-contraction cylinder 45, and while improving the aesthetics by this cover A, it loaded on the load receiving stand 3 at the time of raising / lowering Interference between the load and the movable part such as the telescopic cylinder 45 can be prevented, and damage to both due to the interference can be prevented.

  The load receiving platform lifting / lowering device 2 configured as described above has a storage position in which the entire device is disposed in the width direction along the opening / closing door 11 at the rear portion in the load storage 1, and the swivel post 6 from the storage position. It is arranged at a work position rotated, for example, 90 °, and the load is unloaded between the ground and the loading platform 1 at this work position.

  Specifically, the load receiving platform lifting device 2 disposed at the storage position is rotated to be disposed at the work position, and the load receiving platform 3 is disposed at the work position from the standing position to the horizontal position. By moving the slider 42 up and down along the column 41, the load receiving platform 3 connected to the slider 42 is moved up and down between the floor surface of the loading platform 1 and the ground. In this manner, loading of the load from the ground onto the loading platform 1 or loading of the loading from the loading platform 1 to the ground is performed.

  Note that, as described above, the load receiving platform lifting / lowering device 2 arranged at the storage position and the work position is stably held by the holding means (not shown) at the storage position and the work position.

  Further, the loading / unloading of the load by the load receiving platform 3 is performed in the horizontal position as shown by a two-dot chain line in FIG. 3 at the uppermost position where the load receiving platform 3 is disposed slightly above the floor surface of the load platform 1. By placing it in the storage position in 1, it is also possible to transfer the load between the load receiving platform 3 and the floor surface in the loading platform 1.

  In such a case, it is preferable to rotate only the load receiving platform lifting / lowering device 2 with the opening / closing door 11 opened by removing the connecting rod 12. That is, it is only necessary to appropriately select whether or not to interlock with the opening and closing of the opening and closing door 11 by detaching the connecting rod 12 according to the work situation.

  When each operation as described above is completed, the load receiving platform 3 is rotated from the horizontal position to the standing position at the operation position, and is rotated and stored to the storage position while being secured by the securing means 5.

  At this time, the lashing of the load receiving platform 3 at the standing position can be easily and quickly performed by simply rotating the locking piece 53 and locking it to the locking pin 52. The burden can be reduced as much as possible.

  Furthermore, when loading a load on the loading platform 1 without using the loading platform lifting device from a platform higher than the ground, the loading platform lifting device 2 disposed at the storage position obstructs the loading. In the state where 3 is secured to the standing position, the load receiving table lifting / lowering device 2 is rotated and arranged at the work position.

It is a perspective view which shows schematic structure of the load receiving stand raising / lowering device of the stowage storage type provided in the cargo vehicle. It is a front view which shows the load receiving table raising / lowering apparatus arrange | positioned in a work position. It is a top view which similarly shows the load receiving table raising / lowering apparatus arrange | positioned in a work position. It is a side view which shows the support structure of the load receiving stand with respect to a slider.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Loading platform 2 Loading platform raising / lowering device 3 Loading platform 4 Lifting mechanism 5 Locking means 51 First locking means 52 Locking pin 53 Locking piece 55 Second locking means 56 Locking hole 57 Locking pin 6 Rotating post

Claims (1)

A loading platform connected to the lower end of the slider is vertically movable between the loading platform and the ground by an elevating mechanism in which the slider is slidable in the vertical direction in the support column. An elevating mechanism is provided so as to be pivotable in a horizontal direction between a storage position arranged in the cargo bed and a work position outside the cargo bed around a swivel post erected in the cargo bed. In the stowage-type stowage lifting and lowering device of the stowage in the loading platform that is provided so as to be rotatable in the vertical direction between the position and the standing position, and that the loading platform is secured by the securing means at the standing position,
The lashing means includes first lashing means for preventing rotation of the cargo cradle from an upright position to a horizontal position, and second lashing means for preventing downward movement of the cradle. The first securing means includes a locking pin projecting laterally from a middle portion of one side of the load receiving table, and a locking piece that is rotatably provided on the support column and can be locked to the locking pin. The second lashing means comprises a lashing hole provided in a load receiving table and a lashing pin protruding from the column and inserted and locked into the lashing hole in an upright position. The cradle lashing structure in the cradle storage type cradle lifting device.

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