JP2004075158A - Leg storing type pallet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a leg storing type pallet which does not cause trouble in the running of a carrier. <P>SOLUTION: This leg storing type pallet has a pallet main body 2 on which articles to be carried are loaded, and a plurality of legs 3 and so forth having a height under which the carrier can enter, which support the pallet main body 2. The legs 3 stand up at a location protruding from the side of the pallet main body 2 when the pallet main body 2 is supported. The legs 3 face sideways along the pallet main body 2 when the pallet main body 2 is loaded on the deck of the carrier, and can be housed in a housing part on the side of the pallet main body 2. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet used when a heavy object such as a product or a raw material (an object to be conveyed) is transported using a carrier, for example, at a steel mill, and more specifically, a pallet body on which the object to be conveyed is placed. The present invention relates to a leg retractable pallet capable of storing legs for supporting the pallet at a predetermined height.
[0002]
[Prior art]
2. Description of the Related Art Steelworks and the like have conventionally used large-sized transport vehicles (hereinafter, simply referred to as “carriers”) called carriers when transporting products, materials, scraps, and the like on premises. The carrier is provided with a carrier on which large-sized goods can be loaded, and an appropriate number of traveling devices arranged continuously in the front-rear direction are provided below the carrier. The traveling device has a plurality of tires, and a jack-up mechanism using a hydraulic cylinder as a driving means is provided between the tires and the loading platform, so that the loading platform can be raised and lowered to adjust the height. I have.
[0003]
Here, FIGS. 11 and 12 are views showing the carrier and the pallet from the front. In particular, FIG. 11 shows a state where the carrier has entered the pallet, and FIG. It is a figure showing a possible state. As one mode of transport by the carrier 100, transport using the pallet 200 of a tunnel-type structure having legs as described above is performed.
[0004]
In other words, the pallet 200 installed at a predetermined position has the transported object 300 placed thereon before the carrier 100 comes, and is prepared for transportation. As shown in FIG. 11, the carrier 100 advances into the top pallet 200 with the loading platform 110 lowered as shown in FIG. Then, as shown in FIG. 12, the loading platform 110 is lifted, the conveyed object 300 loaded on the pallet 200 is lifted and moved to a predetermined position, and the loading platform 110 is lowered again at that position to place the pallet 200. Then, transfer to the next pallet 200.
[0005]
[Problems to be solved by the invention]
However, the conventional pallet 200 used for transporting the carrier 100 has a problem in that the width of the conventional pallet 200 hinders the traveling of the carrier. That is, in the pallet 200, the interval between the left and right legs 201, 201 needs to be greater than the width of the carrier 100 so that the carrier 100 can enter the pallet 200. Therefore, when the carrier 100 travels while the pallet 200 is placed on the carrier 110, it becomes difficult to pass through a narrow portion by the increased width, and the legs 201, 201 are located beside the driver's seat. The driver's view.
[0006]
Therefore, an object of the present invention is to provide a leg-retractable pallet that does not hinder the traveling of a carrier in order to solve such a problem.
[0007]
[Means for Solving the Problems]
The leg retractable pallet of the present invention is a pallet having a pallet main body for placing an article to be conveyed and legs supporting the pallet main body at a height below which a carrier can enter, wherein the legs are: When supporting the pallet body, it stands upright at the position protruding to the side of the pallet body, and when the pallet body is placed on the carrier bed, it is turned sideways along the pallet body and It is characterized in that it can be stored in a unit.
[0008]
Therefore, according to the present invention, even when the width of the pallet body is the same as the carrier bed, the legs stand up at positions protruding laterally, so that the carrier can enter under the pallet body. And when carrying the pallet on the carrier, the legs can be stored in the storage section, so the width of the pallet is the same as the width of the pallet body as the carrier's carrier, and it also obstructs the driver's view. As a result, there is no hindrance to the traveling of the carrier.
[0009]
In addition, the leg retractable pallet of the present invention is characterized in that the leg is attached in a rotatable state by inserting a rotation shaft into the pallet body, and by inserting the rotation shaft further deeply in a horizontal state, the pallet body side It is characterized in that it can be stored in a groove-shaped storage section formed in the section.
Therefore, according to the present invention, the legs can be switched between the supporting state and the retracted state by the rotation about the rotation axis and the insertion of the rotation axis, and handling is easy with a simple configuration.
[0010]
Further, in the leg retractable pallet of the present invention, the leg is fixed to a tip of a rotating shaft inserted into the pallet main body, and the pallet main body includes a case where the leg supports the pallet main body. In correspondence with the insertion of each rotating shaft when stored in the rotary shaft, a detent is provided to sandwich the block body and regulate the rotation of the rotating shaft.
Therefore, according to the present invention, the leg can be stabilized in each state by regulating the rotation of the rotating shaft in two stages of the support state and the storage state.
[0011]
Further, in the leg retractable pallet of the present invention, the legs are formed of a solid portion that is heavy and short in size, and a channel portion that is light and long in size. Is characterized in that the weights are substantially balanced.
Therefore, according to the present invention, even a relatively heavy leg can be easily rotated by human power, making it easy to handle.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of a leg-retractable pallet according to the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show a leg-retractable pallet according to the present embodiment. FIG. 1 is a side view of the leg-retractable pallet, and FIG. 2 is a front view thereof. This leg-retractable pallet (hereinafter simply referred to as "pallet") 1 is provided with four legs 3, 3,... The main body 2 is supported at a predetermined height.
[0013]
As shown in FIG. 2, the leg 3 has a rotary shaft 11 inserted in the lateral direction with respect to the pallet main body 2 and rotates in the front-rear direction of the pallet 1 about the rotary shaft 11 as shown by an arrow in FIG. I can do it. As shown in FIG. 3, the leg 3 is divided into a solid solid portion 12 fixed perpendicular to the rotation axis 11 and a channel portion 13 made of a grooved steel. , A grounding portion 14 is hinged.
[0014]
In this way, the short and heavy solid portion 12 and the long and light channel portion 13 are divided into two parts. When the legs 3 are set in a horizontal state along the pallet body 2 as shown in FIG. This is to make the right and left weights substantially equal to each other with respect to 11, so that the leg 3 can be easily rotated by human power. The leg 3 is provided with three handles 15 at which the operator can take a hand when rotating the leg 3.
[0015]
Next, FIGS. 5 and 6 are cross-sectional views showing the support portion in the pallet main body 2 into which the rotation shaft 11 of the leg 3 is inserted. The support portion 20 is positioned in two stages: a state in which the leg 3 stands upright with respect to the pallet body 2 as shown in FIG. 3 and a state in which the leg 3 is horizontal along the pallet body 2 as shown in FIG. Can be performed. In the configuration, the block body 21 is fixed to the tip of the rotating shaft 11, and the detents 22 and 23 that sandwich the block body 21 in the pallet front-rear direction or the vertical direction are shifted in the support portion 20 of the pallet body 2 in the axial direction. It is provided in the position.
[0016]
Rotation support members 25 and 26 are fixed to the support portion 20 at two positions inside the insertion opening 27 of the rotation shaft 11 and further inside, respectively, and the rotation shaft 11 is rotatably supported by the rotation support members 25 and 26. ing. A detent 22 that sandwiches the block body 21 in the front-rear direction when the leg 3 stands upright (see FIG. 3) is disposed at the back of the rotation support member 26, and the leg 3 is further horizontal at the back. In this case (see FIG. 4), a detent 23 that sandwiches the block body 21 from above and below is disposed.
[0017]
Here, FIG. 7 is a diagram showing a cross section taken along the line AA in FIG. 5, and FIG. 8 is a diagram showing a cross section taken along the line BB in FIG. As shown in the figure, the pair of plate members forming the detents 22 and 23 are rotated in the front-rear direction of the pallet so that the block 21 having a rectangular parallelepiped shape fits in the width interval on the short side. A pair of frame members forming the stoppers 23 are fixed in the pallet vertical direction. When the blocks 21 are fitted in the postures shown in the drawing, the rotation of the rotation shaft 11 is hindered, and the legs 3 are maintained in a vertical or horizontal state.
[0018]
The pallet 1 of this embodiment has a foldable waterproof cover 5 attached to the pallet body 2 via a slider 6. Therefore, when the transported object is placed on the pallet main body 2, the waterproof cover 3 is folded as shown in FIG. 1 and the slider 6 is slid to move the waterproof cover 3 to a position off the pallet main body 2. it can. After the loading of the load on the pallet body 2 is completed, the slider 4 is moved so as to overlap the pallet body 2, and the waterproof cover 3 is further spread along the slider 4 to cover the entire pallet body 2. You can do it.
[0019]
Next, transport of the carrier using such a pallet 1 will be specifically described. When transporting by a carrier, first, the pallet 1 is set up with legs 3, 3... As shown in FIGS. 1 and 2, and the transported object is loaded on the pallet body 2 supported at that height. At this time, in the support portion 20, the rotary shaft 11 is pulled out to a position where the block body 21 abuts against the rotation support member 26 as shown in FIG. 5, and the block body 21 is sandwiched in the front-rear direction by the detent 22 as shown in FIG. Have been. Therefore, the leg 3 stands vertically with the rotation restricted, and the pallet 1 is stable with the pallet body 2 horizontally supported at its height by the four legs 3, 3,.
[0020]
The pallet 1 after the loading of the pallet 1 is finished, the waterproof cover 5 is spread to cover the pallet 2 on the pallet main body 2 and the carrier 100 enters under the pallet main body 2 as shown in FIG. Is lifted and mounted on the loading platform 110. At this time, the carrier 100 moves the carrier 100 below the pallet body 2 in the longitudinal direction of the pallet 1 by moving the carrier 100 below the pallet body 2 with the hydraulic cylinder 121 of the traveling device 120 contracting and operating. Stop at a predetermined position. At this time, the pallet body 2 and the carrier 110 of the carrier 100 have substantially the same width, but since the legs 3, 3... Protrude laterally from the pallet body 2, the carrier 100 is It can pass under the pallet 1 and go under it.
[0021]
When the carrier 100 extends the hydraulic cylinder 121 of the traveling device 120, the pallet main body 2 is placed on the carrier 110 and the pallet 1 is lifted. Therefore, the leg 3 supporting the pallet body 2 floats and becomes free, and the leg 3 can be stored by human power. Then, the worker pushes the rotary shaft 11 into the leg 3 in the state shown in FIG. At this time, even if the block body 21 is pushed too far in the posture shown in FIG. 7, the block body 21 hits the detent 23 and does not enter between the detents 23. Therefore, the block body 21 is located between the detents 22 and 23, and the rotating shaft 11 is free in the rotating direction.
[0022]
Next, the operator brings the leg 3 into a horizontal state along the pallet body 2. At this time, since the weight of the solid portion 12 and the channel portion 13 of the leg 3 is balanced, the leg 3 can be easily rotated. Since the short side of the block body 21 rotated by 90 ° is oriented in the up-down direction, if the rotating shaft 11 is further pushed in, the block body 21 fits into the detent 23 as shown in FIGS. A side frame 28 made of H steel is provided on a side surface of the pallet body 2, and the leg 3 is stored along a groove 29 of the side frame 28 (see FIG. 6). The legs 3 thus stored are not easily rotated by the vibration during traveling because the block body 21 is not rotated by the rotation between the detents 23 and 23 and the legs 3 themselves are balanced in a horizontal state. , And is maintained in a state stored in the side frame 28.
[0023]
On the other hand, when the pallet 1 is lowered from the carrier 100 by raising the leg 3 vertically again, the rotary shaft 11 is pulled out to a position where the block body 21 comes off the detent 23. At this time, even if the block body 21 is pulled out too much in the posture shown in FIG. 8, the block body 21 does not fall out by hitting the detent 22. Therefore, the block body 21 is located between the detents 22 and 23, and the rotating shaft 11 is free in the rotating direction. Since the rotation of the leg 3 is almost balanced in the horizontal state, the leg 3 does not vigorously rotate immediately after being pulled out and poses no danger to the operator. Then, the pulled-out leg 3 is turned by the operator, and when it stands up, the rotating shaft 11 is further pulled out. Then, the block body 21 is inserted into the detent 22, and the standing leg 3 is maintained so as not to tilt.
[0024]
Therefore, the pallet 1 of the present embodiment extends the legs 3 to support the pallet body 2 at a predetermined height until the legs 3 are mounted on the carrier 100, and after the pallets 1 are mounted on the carrier 100, as shown in FIG. It is stored in the pallet main body 2 and is invisible from the front without protruding from the side. Since the width of the pallet body 2 of the pallet 1 matches the width of the pallet 110 of the carrier 100, the pallet does not hinder the passage of the pallet even in a narrow place as in the related art, and obstructs the driver's view. No more.
[0025]
In addition, the pallet 1 can be switched between the supporting state (FIG. 3) and the retracted state (FIG. 4) by rotating the legs 3, and the pallets 3 symmetrically rotate the rotation axis 11 with a solid portion. By balancing the weight between the channel portion 12 and the channel portion 13, the device can be easily handled by human power.
In addition, the leg 3 is configured so that the rotating shaft 3 is displaced in the axial direction and the block body 21 is fitted into the detents 22 and 23 to maintain the support state and the stored state, so that the configuration is simple and the handling is easy. .
[0026]
As mentioned above, although one Embodiment of the leg storage type pallet was described, the present invention is not limited to this, and various changes can be made without departing from the gist thereof.
For example, in the above-described embodiment, the legs 3 are provided at four positions on the front, rear, left and right sides of the pallet main body 2. However, the number thereof may be arbitrarily changed according to the size of the pallet or the like. Can be.
[0027]
【The invention's effect】
According to the present invention, when the legs supporting the pallet body at a predetermined height support the pallet body, the legs stand up at positions protruding to the side of the pallet body, and the pallet body is placed on the carrier bed. Can be stored sideways along the pallet main body and can be stored in the storage section beside the pallet main body, so that it is possible to provide a leg-retractable pallet that does not hinder the traveling of the carrier. .
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a leg retractable pallet.
FIG. 2 is a front view showing an embodiment of a leg-retractable pallet.
FIG. 3 is a view showing a leg in a pallet body supporting state.
FIG. 4 is a diagram showing a leg in a stored state.
FIG. 5 is a cross-sectional view of a pallet body supporting state showing a leg supporting portion formed in the pallet body.
FIG. 6 is a sectional view of a stored state showing support portions of legs formed in the pallet main body.
FIG. 7 is a diagram showing a cross section taken along line AA of FIG. 5;
FIG. 8 is a view showing a BB section of FIG. 6;
FIG. 9 is a side view showing a state where a pallet is placed on a carrier.
FIG. 10 is a front view showing a state where a pallet is placed on a carrier.
FIG. 11 is a front view showing a state where a carrier has entered a conventional pallet.
FIG. 12 is a front view showing a state where a conventional pallet is lifted by a carrier and can travel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pallet 2 Pallet main body 3 Leg 11 Rotation shaft 12 Solid part 13 Channel part 14 Grounding part 20 Support part 21 Block body 22, 23 Non-rotating

Claims (4)

A pallet having a pallet body for placing a conveyed object and legs supporting the pallet body at a height below which a carrier can enter,
When supporting the pallet body, the leg stands up at a position protruding to the side of the pallet body, and when the pallet body is placed on the carrier bed, the leg is turned sideways along the pallet body, A pallet with retractable legs, characterized in that it can be stored in a storage section beside the main body. The leg retractable pallet according to claim 1,
The legs are rotatably mounted by inserting a rotation shaft into the pallet body, and by inserting the rotation shaft further deeply in a horizontal state, the leg is inserted into a groove-shaped storage portion formed on the side of the pallet body. A leg-retractable pallet, characterized in that it can be stored. The leg retractable pallet according to claim 2,
The legs, a block body is fixed to the tip of the rotating shaft inserted into the pallet body, in the pallet body of each of the rotating shaft when the legs support the pallet body and when stored in the pallet body A leg-retractable pallet, wherein a detent for regulating rotation of a rotating shaft by sandwiching the block body is provided corresponding to insertion. The leg retractable pallet according to claim 2 or 3,
The legs are formed of a solid portion that is heavy and short in size, and a channel portion that is light and long in size, so that the weight on the left and right is almost balanced with the rotation axis when the leg is horizontal. A pallet with retractable legs, characterized in that:

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