JP2006290423A - Pallet breaking-up apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pallet breaking-up apparatus which can rapidly separate and break up a part or the whole of a pallet for carrying a load which is repeatedly used in a loading and unloading operation by a forklift and in which wooden cross beams and plates are fixed by fasteners. <P>SOLUTION: For the pallet in which a plurality of the cross beams with the same length are arranged in parallel, and a plurality of upper plates and lower plates are arranged on the upper faces and the lower faces of the cross beams so as to intersect the cross beams at right angles, the pallet breaking-up apparatus has a rod-like body inserted into a space formed by the upper plates, the lower plates and the cross beams, an abutment body abutting on the upper faces of the cross beams exposed between the arranged upper plates, and a driving mechanism for pushing up the rod-like body. While the upper faces of the cross beams are locked by the abutment body, the plates arranged on the upper sides of the pallet are pushed up by the rod-like body to separate the plates and the cross beams. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus for disassembling a part or all of a cargo carrying pallet, which is repeatedly used in a cargo handling operation by a forklift, and mainly includes a wood-based beam and a plate fixed by a fastener.

Conventionally, a pallet for carrying goods (hereinafter referred to as a pallet) is damaged even if part of the plate of the pallet or a girder arranged perpendicular to the plate is damaged due to contact with the fork pawls of a forklift. If you replace the plates and girders, you can use them as they were.
For example, if the plate is damaged, the nail that fastens the plate and girder of the pallet is pulled out, the damaged plate is removed, replaced with a new plate, and fixed again with the nail.
However, when stripping a plate manually, a nail bar is inserted into the gap between adjacent plates on the pallet, and the plate is lifted up using the lever principle with the end of the plate next to the plate to be peeled off as a fulcrum. The board was separated from the girders. In this method, not only the nail does not come off but remains in the girder, the plate to be peeled often breaks, and if the pallet girder is damaged, all the nails related to the broken girder are pulled out There was a need. Therefore, both in the case of repairs and when considering the reuse of plates and girders, a great deal of labor is required to disassemble the pallet. It was crushed into metal scrap and used for raw materials such as artificial timber with low utility value and fuel.

  On the other hand, a device has also been devised that inserts a saw into the joint surface between the plate and girder of the pallet and cuts and disassembles the nail that fastens the plate and girder. Since the cut nails remain in the plate, and the joint surfaces of the plate and girders are also cut with a saw, there is a problem that the commercial value after reuse decreases.

In order to cope with such a problem, several inventions and devices have been disclosed.
For example, Patent Document 1 discloses a device related to an apparatus for disassembling a panel used as a formwork material in a concrete formwork used for concrete construction under the name of “panel dismantling apparatus”.
The “panel dismantling device” disclosed in Patent Document 1 is capable of automatically pulling out a plinth nailed to a panel without relying on human power. These support columns are connected by front, rear, left and right horizontal rails to form a substantially gate-shaped support frame body, and a clamp body that can move horizontally is supported on the support frame body. , B, and the same hydraulic cylinder for clamping the crosspiece attached to the panel and pulling it upward against the pressing force of the panel pressing rods A, B. And a disassembling clamp arm that pulls upward by “.”
Generally, a panel used as a formwork material is obtained by hitting a square member such as a crosspiece with a nail or the like on a flat member such as a plywood. The “panel dismantling device” according to the present invention is for dismantling both sides of the pier while clamping the both sides of the pier while placing the panel so that the surface on which the pier is struck is on the base of the device The pier is pulled out by holding it with a clamp arm and pulling it up.
According to this “panel dismantling device”, the pier and the plywood can be disassembled without depending on human power. Further, since the pier is pulled up in a direction parallel to the direction in which the nail is driven, damage to the pier and the plywood can be reduced as compared with the case where the pier is peeled off by the lever principle using a nail extraction bar or the like. Therefore, the recycling rate of piers and plywood is improved.
In addition, the present invention is configured to disassemble the pier and plywood of the panel, but as a pre-treatment, the board on the upper or lower surface of the pallet is peeled off in advance, so that the pallet girder and board can be disassembled in principle. Can be used.

Patent Document 2 discloses an invention relating to a formwork demolition machine having a name of “formwork demolition machine” and provided with a nail extraction and a slot removal of a formwork panel used at a construction site or the like.
Similarly to the invention of Patent Document 1, the present invention also disassembles a formwork panel in which a square member such as a plinth is struck with a nail or the like on a flat member such as a plywood. Gap formation that forms a gap between the frame and the plywood, a frame having a front and a rear of the frame panel, a conveyance mechanism that conveys the form panel from the carry-in side to the carry-out side, and a frame. It has a configuration including a mechanism, a pressing mechanism that pushes the plywood toward the pier and protrudes the nail head, and a nail removal mechanism that pulls out the protruding nail head.
The “formwork dismantling machine” according to the present invention first needs to manually remove the piers located at both ends in the short direction of the formwork panel as a pretreatment before the formwork panel is put into the carry-in entrance. is there. After this processing, when the formwork panel is horizontally loaded so that the pier is positioned on the upper side at the entrance of the “formwork dismantling machine”, first, the end mill abuts on both sides of the formwork panel in the keren mechanism, The stick attached to this part is deleted.
Next, in the carry-in side gap forming mechanism, if the hammer is applied to the plywood from above by the hammer portion A while the pier is sandwiched between the driving roller and the driven roller, the plywood is moved downward by this striking, and the pier A gap can be formed between the plywood. Further, the gap is widened by pushing the wedge portion into the gap. After this, in the carry-out side gap forming mechanism, the upper surface of the plywood is pressed downward by the expansion bearing, and the plywood is again pressed by the hammer portion B while preventing the plywood from returning to the pier side by the elastic force of the plywood itself. Is blown to widen the previously formed gap. At this time, the nail head is locked to the lower surface of the plywood, and the nail head also moves downward as the plywood moves downward. As a result, the nail is pulled out from the pier by the gap that has been expanded.
Subsequently, in the pressing mechanism, when the plywood is pressed upward from below by the plywood support roller, the plywood gradually moves upward. At this time, the pedestal that is lifted from the plywood is tilted left and right (twisted) by the drive taper roller and the driven taper roller of the inclined transport mechanism, so that only the plywood is pushed to the pier side without returning to the nail hole of the pier. The nail crest of the nail is lifted to the lower surface of the plywood.
Finally, in the nail removal mechanism, when the nail head position of the nail that is lifted on the lower surface of the plywood is detected by the infrared sensor, the burl cylinder is activated, the nail is pulled out by the burl part, and the nail is pulled out by the transport mechanism Carrying out the formwork panel dismantling.
According to the “formwork dismantling machine”, the formwork panel can be dismantled without relying on human power, and separated into the members of the pier, plywood, and nail, thereby promoting the reuse of these members.
Similarly to the idea of Patent Document 1, it is also possible to use in principle for dismantling the pallet's girders and plates by preliminarily removing the plate on the upper or lower surface of the pallet as a pretreatment.

Japanese Utility Model Publication No. 6-71765 Japanese Patent Laid-Open No. 2001-20521

However, when trying to use the conventional “panel dismantling device” as disclosed in the above-mentioned Patent Document 1 for dismantling the pallet, the plate on the upper surface or the lower surface of the pallet is pre-processed before being loaded into the device. It was necessary to remove it in advance, which was complicated. At this time, in order to peel off the upper or lower plate of the pallet in advance, it is necessary to peel off the plate using the lever principle using a nail puller bar, etc. there were.
In the case of a pallet, unlike a formwork panel, the plate is thick and the girder is thick, so a relatively long and thick nail with a holding force per nail of about 1000 to 4000 N is used for joining the plate and girder. It has been. For this reason, when clamping a girder, a device having a strong clamping force is required, and the device itself is large and expensive.
Furthermore, when the conventional “panel dismantling device” is used for disassembling the pallet, the girders are pulled out one by one while clamping the upper plate or the lower plate, so that it is difficult to improve the work efficiency.

Also, in the invention disclosed in Patent Document 2, as in the case of the device disclosed in Patent Document 1, when the “formwork dismantling machine” is used for dismantling the pallet, before the pallet is carried into the carry-in entrance, As a pretreatment, it is necessary to peel off the upper or lower plate of the pallet in advance, which is complicated.
In addition, as described in Patent Document 1, in the case of a pallet, unlike a formwork panel, a plate and a girder are thick. Therefore, when a plate and a girder are joined, a holding force per nail is relatively about 1000 to 4000 N. Long and thick nails are used. For this reason, when clamping a girder, a device having a strong clamping force is required, and the device itself is large and expensive.
That is, the conventional “former demolition machine” has a complicated process for pallet demolition, and the apparatus itself is large and expensive. However, since the pretreatment as described above is necessary, it is cost effective. There were also challenges.
In addition, if the hammers A and B are subjected to a local blow that causes the nail to slightly slip out of the upper plate or the lower plate to form a gap between the plate and the girders, the plate may be broken and broken along the grain. there were.

  The present invention has been made in response to such a conventional situation, and an object of the present invention is to provide a pallet disassembling apparatus that can quickly separate and disassemble the girders and plates constituting the pallet with little effort and less damage. .

In order to achieve the above object, the pallet disassembling apparatus according to the first aspect of the present invention has a plurality of girders having the same length arranged in parallel, and a plurality of upper plates so that the upper and lower surfaces of the girders are orthogonal to the girders. And a pallet dismantling device for disassembling a pallet configured by arranging a lower plate, between a bar-shaped body inserted into a space formed by the upper plate, the lower plate and the girder of the pallet, and the arranged upper plate A contact body that comes into contact with the upper surface of the spar exposed from, a fixing mechanism that fixes the contact body at a desired height, and a drive mechanism that pushes up the rod-shaped body.
The upper and lower expressions described in claims 1 and 2 define the direction of gravity.
In the pallet disassembling apparatus having the above configuration, the drive mechanism has an action of operating the rod-shaped body. Further, the rod-shaped body abuts on the lower surface of the upper plate and has an action of pushing up the pallet. Further, the abutting body abuts on the upper surface of the rising spar and has an effect of preventing the spar from being pulled up.

In the pallet disassembling apparatus according to the second aspect of the present invention, a plurality of girders having the same length are arranged in parallel, and a plurality of upper and lower plates are arranged on the upper and lower surfaces of the girders so as to be orthogonal to the girders. A pallet dismantling device for disassembling a pallet configured as described above, wherein a bar-like body inserted into a space formed by an upper plate, a lower plate and a girder of a pallet, and a girder exposed from between the arranged upper plates A contact body that contacts the upper surface, a fixed mechanism that fixes the rod-shaped body to a desired height, and a drive mechanism that pushes down the contact body are provided.
In the pallet disassembling apparatus having the above-described configuration, the drive mechanism has an action of operating the contact body. Further, the abutting body abuts on the upper surface of the girders exposed from between the upper plates of the pallet arranged for dismantling, and has an action of pushing down the pallet. Further, the rod-shaped body has an action of coming into contact with the lower surface of the descending upper plate and preventing the lower plate from descending.

The pallet disassembling apparatus according to claim 3 is configured by arranging a plurality of girders having the same length in parallel and arranging a plurality of upper and lower plates on the upper and lower surfaces of the girders so as to be orthogonal to the girders. A pallet dismantling device for disassembling a pallet to be disposed on a bar-like body inserted into a space formed by an upper plate, a lower plate and a girder of the pallet, and an upper surface of the girder exposed from between the arranged upper plates A first abutting body that abuts, a second abutting body that abuts the lower surface of the beam exposed from the gap between the lower plates, a first drive mechanism that pushes up at least one of the rod-shaped bodies, A second drive mechanism that pushes down one abutment body, a third drive mechanism that pushes down at least one rod-like body other than the rod-like body pushed up by the first drive mechanism among the rod-like bodies, and a second abutment body And a fourth drive mechanism for pushing up
In addition, the upper and lower expressions described in claims 3 to 6 are the same as in the case of claims 1 and 2, in order to explain the positional relationship between the components, upward in the direction of gravity. Although the direction is defined as downward, in the invention quoting claim 3 and claim 3, the top may be read as left and right.
In the pallet disassembling apparatus having the above configuration, the first driving mechanism operates at least one of the rod-shaped bodies, the second driving mechanism operates the first abutting body, and the third driving mechanism is the first driving mechanism. The fourth drive mechanism that operates at least one of the rod-shaped bodies that are not operated by the drive mechanism has an action of operating the second contact body. Further, the first abutting body abuts on the upper surface of the girders exposed between the arranged upper plates and presses the girders from above, and the second abutting bodies are arranged between the arranged lower plates. It has the effect | action which contact | abuts to the lower surface of the spar exposed from the bottom, and presses a spar from below. Furthermore, at least one rod-shaped body has an action of abutting against the lower surface of the upper plate and pushing up the upper plate, and at least one rod-shaped body other than the rod-shaped member pushing up the upper plate is in contact with the upper surface of the lower plate. It has the effect of pushing down the lower plate.

The pallet dismantling apparatus according to claim 4 is the pallet disassembling apparatus according to any one of claims 1 to 3, wherein the bar-shaped body has at least a part of the upper surface or the lower surface of the bar-shaped body. It has a partial extraction block that is provided so as to be covered and detachable or slidable.
In the pallet disassembling apparatus having the above-described configuration, the partial punching block has an action of selectively abutting against an upper plate or a lower plate to be replaced or reusable and pressing in a direction of peeling from the girder.

The pallet disassembling apparatus according to claim 5 is the pallet disassembling apparatus according to any one of claims 1 to 4, wherein the contact body, the first contact body, and the second contact body. Has an abutting portion that abuts against the upper or lower surface of the beam exposed from the gap between the upper plate and the lower plate, and an abutting portion holding portion that connects the upper end portion or the lower end portion of the abutting body.
In the pallet disassembling apparatus having the above-described configuration, the contact portions of the contact body, the first contact body, and the second contact body are in contact with the upper surface or the lower surface of the beam exposed from the gap between the upper plate and the lower plate, Has the effect of pressing the girder

A pallet disassembling apparatus according to a sixth aspect of the present invention is the pallet disassembling apparatus according to any one of the first to fourth aspects, wherein the contact body, the first contact body, and the second contact body. The contact body includes a block body having a hole and a connecting rod that is inserted into the hole and holds the block body in a slidable or detachable manner.
In the pallet disassembling apparatus having the above-described configuration, the block body has an action of contacting the upper surface or the lower surface of the girders exposed from the gap between the upper plate and the lower plate and pressing the girders. Further, the connecting rod has an action of holding the block body in a slidable or detachable manner.

As described above, in the pallet dismantling apparatus according to claims 1 and 2 of the present invention, all the upper plates constituting the pallet can be separated from the girders at a time. Furthermore, by reversing the upper and lower sides of the pallet that has been separated from the upper plate by separating the upper plate, the entire lower plate can be separated from the girders at once.
Thus, when the pallet disassembling apparatus according to the present invention is used, the pallet can be completely disassembled into plates and girders, so that it is easy to collect plates and girders with a low degree of damage. For this reason, it is possible to save labor and time for pallet dismantling, and it is possible to prevent the upper and lower plates from being damaged during dismantling and to promote the reuse of the plates and girders.

  In the pallet disassembling apparatus according to claim 3 of the present invention, since all the upper and lower plates of the pallet can be separated from the girders at a time, labor and time for pallet disassembling can be saved. Further, it is possible to prevent the upper plate and the lower plate from being damaged during dismantling and to promote the reuse of the plates and girders.

  In the pallet dismantling device according to claim 4 of the present invention, at least one of the upper plate and the lower plate to be replaced for repair or to be reused can be selectively separated from the girders. Exchange of a board or a lower board becomes easy. For this reason, a waste pallet can be reduced.

  Moreover, in the pallet dismantling apparatus according to claim 5 of the present invention, when dismantling a large number of pallets with a unified standard, the configuration of the pallet disassembling apparatus can be simplified, and the manufacturing cost can be reduced. In addition, there is no fear that the distance between the contact portions will be shifted, and maintenance work can be saved.

  In the pallet dismantling apparatus according to claim 6 of the present invention, when disassembling pallets with different standards, it is possible to adjust the interval between the block bodies in accordance with the plate width of the upper plate or lower plate of the pallet. In addition, when disassembling a pallet having different intervals between girders, it is possible to adjust the interval between the connecting rods, thereby increasing the versatility of the pallet demolition device.

[1] Hereinafter, the configuration and operation of the pallet dismantling apparatus according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. (In particular, it corresponds to claim 1, claim 5 and claim 6.)
FIG. 1 is an outline view of a pallet dismantling apparatus according to the first embodiment of the present invention.
Moreover, Fig.2 (a) is a top view of the pallet demolition apparatus which concerns on the 1st Embodiment of this invention, (b) is a side view of the pallet demolition apparatus which concerns on the 1st Embodiment of this invention. (C) is a side view according to a modification of the pallet dismantling apparatus according to the first embodiment of the present invention. Furthermore, FIG. 3 is a principal part outline drawing of the pallet demolition apparatus which concerns on the 1st Embodiment of this invention.
Note that the direction indicated by the symbol M in FIGS. 2 and 3 matches the direction indicated by the symbol M in FIG.
As shown in FIG. 1, the pallet dismantling apparatus 1a is provided with a plurality of rollers 19 that allow a pallet to be disassembled to slide in and out on the gantry 18a to 18c, and a column 17a on the side of the gantry 18b. ˜17d are provided, and a bridge member 25 connecting the tops of these columns is arranged. Needless to say, a conveyor belt or a conveyor chain may be used in place of the roller 19. Inside the bridging member 25, as an abutment member 8a ₁ parallel to the direction indicated by the symbol P in FIG. 1, a block body connecting rod 10 digits and for example the same number of pallets, not shown is top plate provided It has been. For example, the same number of block bodies 9a _{1 as} the number of gaps in the upper plate of the pallet are inserted into the block body connecting rod 10, and when the rod-like body 7a ₁ is pushed up, the upper end of the block body 9a ₁ is in contact with the upper side. A top plate is covered so that it touches.
When the pallet is actually dismantled, the dismantling operation is performed by inserting the pallet from the direction indicated by the symbol M in FIG.

Further, a plurality of rod-like bodies 7a ₁ pushed up by the hydraulic devices 14a ₁ and 14b ₁ through the pressing plates 15a and 15b are indicated by a symbol P in the figure on the gantry 18d arranged at the end of the pallet dismantling device 1a. The rod-shaped body 7a ₁ enters between the two beams 5 of the pallet 2, and the upper plate is peeled off from the beam by the operation of the rod-shaped body 7a ₁ .
In the present embodiment, the hydraulic devices 14a ₁ and 14b ₁ are driven by hydraulic pressure, and thus include a hydraulic pipe 20 and a hydraulic pump and a control panel (not shown).
Further, a plurality of rod-shaped body 7a ₁ is connected while maintaining a predetermined distance by the rod-like body connecting rod 13, an end portion of the pillar 17b, 17c of the side and platform 18c, the rod-like body 7a when the hydraulic system is reset There are provided support plates 16a and 16b which are movable and can be adjusted up and down to support ₁ horizontally and at a predetermined height. Further, for the purpose of holding the plurality of rod-like bodies 7a ₁ horizontally, the counter balance 12 is suspended from the end of the rod-like body 7a _{1 on} the gantry 18d side. On the upper surface of the mount 18 d, when the repeated lifting of the rod-shaped body 7a _1, the rod-shaped body 7a ₁ stopper 21 so as not to move in the direction indicated by the symbol P in the drawing is provided.

Next, the arrangement of the pallet demolition apparatus 1a and the pallet 2 when the pallet 2 is carried into the pallet demolition apparatus 1a from the direction indicated by the symbol M in FIG. 1 will be described with reference to FIGS. explain. In addition, the same code | symbol is attached | subjected about the part same as what was described in FIG. 1, and the description about the structure is abbreviate | omitted.
2 (a) and 2 (b), a plurality of girders 5 having the same length are arranged in parallel, and a plurality of upper plates 3 such that the upper surface and the lower surface of the girder 5 are orthogonal to the girders 5 and When the pallet 2 in which the lower plate 4 is arranged at equal intervals and fixed with the nail 6 is inserted into the lower part of the top plate 11a ₁ from the direction indicated by the symbol M, the rod-like body 7a ₁ is moved to the upper plate 3 and the lower plate of the pallet 2 4 and enters from the space 26 formed by the digits 5, the pallet 2 is in a state such as that skewered by the rod-shaped body 7a _1. At this time, as shown in FIG. 2 (b), when the block body 9a ₁ is located directly above the upper surface of the girder 5 exposed from the gap between the top plate 3, the pallet 2 is pushed upward, the upper plate 3 is in contact with the upper surface of the beam 5 exposed from the gap 3. The block body 9a ₁ is connected by a block body connecting rod 10, and a top plate 11a ₁ is covered on the block body 9a ₁ . Therefore, when a force to push up the lower surface of the block body 9a ₁ is applied, the upper portion of the block body 9a ₁ is the contact that forces the top plate 11a ₁ is dispersed into the top plate 11a _1.
Since the block body 9a ₁ is slidable or detachable on the block body connecting rod 10, it is possible to disassemble pallets with different plate widths of the upper plate 3 by adjusting the distance between the block bodies 9a _1. is there. Similarly, since the interval between the block connecting rods 10 can be adjusted, pallets with different arrangement intervals of the beams 5 can be disassembled.
Moreover, when using the pallet dismantling apparatus 1a, it is not always necessary to install and use the contact body 8a ₁ on the frame 25 shown in FIG. 1, for example, only the top plate 11a ₁ is installed on the frame 25, The contact body 8a ₁ or the block body 9a ₁ is placed in advance on the upper surface of the girder 5 so as to fit into the gap between the upper plates 3 of the pallet 2, and the pallet 2 is inserted directly under the top plate 11a ₁ for disassembly. Processing may be performed. Thus, even if the shape size of the pallet 2 is changed by using the contact body 8a ₁ or the block body 9a ₁ , it is not necessary to adjust the insertion position of the pallet 2 every time the dismantling process is performed, and work efficiency can be improved. it can.
Then, as shown in FIG. 3, the rod-like body 7a ₁ inserted into the space 26 is pushed up by hydraulic devices 14a ₁ and 14b ₁ (shown in FIG. 2 (b)) in the direction indicated by the symbol S in the figure. Then, the abutment body 8a ₁ prevents the girder 5 from rising, while the bar-shaped body 7a ₁ pushes up the upper plate 3 so that the upper plate 3 to which the nail 6 is engaged is separated from the girder 5. At this time, the upper plate 3 is semi-disassembled in a state of being placed so as to float on the girder 5. Thereafter, the hydraulic devices 14a ₁ and 14b ₁ are reset and returned to the positions before the dismantling process, and the pallet 2 semi-disassembled by the conveying roller 19 can be pulled out.
Only the contact body 8a ₁ or the block body 9a ₁ is placed on the upper surface of the beam 5 exposed from the gap between the upper plates 3 of the pallet 2, and then the pallet 2 is inserted directly below the top plate 11a _1. When the disassembling process is performed, the contact body 8a ₁ or the block body 9a ₁ is pulled out from the lower side of the top plate 11a ₁ together with the pallet 2 while being placed on the beam 5 of the pallet 2 in the semi-disassembled state. It is.

In the pallet disassembling apparatus 1a according to the present embodiment, the case where the number of the rod-like bodies 7a ₁ is four has been described as an example. However, the number of the rod-like bodies 7a ₁ and the insertion position to the pallet 2 are as follows.
Is not limited to the case shown in FIGS. 1 to 3, and may be appropriately changed according to the shape of the pallet 2 to be disassembled. That is, at least one of the rod-like bodies 7a ₁ may be inserted into the space 27 shown in FIG.
Further, the rod-like body 7a ₁ may have a length such that at least the upper surface of the rod-like body 7a ₁ abuts at least a part of all the upper plates 3 arranged on the pallet 2. The rod-like body 7a ₁ penetrates the fork claw insertion space 26 of the pallet 2 and contacts the lower surface of all the upper plates 3 from the upper plate 3a at one end of the pallet 2 to the upper plate 3e at the other end. The rod-shaped bodies 7a ₁ are configured to project from the end portions of the plates 3a and 3e toward the outside of the pallet 2, respectively. Thus, by constituting the rod-shaped body 7a ₁ according to the present embodiment, the lower surface of the rod-shaped body 7a ₁ is not only the pressure plate 15a and the hydraulic device 14a ₁ but also the pressure plate on the side protruding from the pallet 2. since pushed through 15b and the hydraulic apparatus 14b _1, it is possible to more stably driven.
Further, the cross-sectional shape of the rod-like body 7a ₁ is not limited to the square shape as shown in FIGS. 1 to 3, but is smaller than the cross-sectional shape in the vertical direction of the space 26 or the space 27, and the space 26 or the space 27 The cross-sectional shape is not a problem as long as it can be inserted and is configured to have sufficient strength. For example, the rod-like body 7a ₁ may be flat.
Further, the block body 9a ₁ is not necessarily provided so as to be in contact with the entire upper surface of the exposed beam 5. That is, when the bar-like body 7a ₁ is pushed up, the number of insertions does not matter if the girder 5 is held horizontally.
Further, in the present embodiment, the block connecting rod 10 is arranged in parallel with the digit 5 directly above the digit 5, but the arrangement of the block 9a ₁ is not changed, and the digit 5 and the block connecting rod 10 are orthogonal to each other. That is, it may be arranged parallel to the upper plate 3. By comprising in this way, when the number of the upper board 3 or the lower board 4 is smaller than the number of the girders 5, the number of the block body connection rods 10 can be decreased, and the structural member of the pallet demolition apparatus 1a can be decreased.
Further, in the present embodiment, to constitute a contact body 8a ₁ and the ceiling plate 11a ₁ separately, may not necessarily be formed separately. For example, as in the pallet dismantling apparatus 1c shown in FIG. 2 (c), the top plate contact body 34 integrally formed with the top plate 11a ₁ and the block body 9a ₁ is replaced with the top plate 11a ₁ and the contact body 8a ₁ . You may use for. Thus, the top plate contact body 34 in which the top plate and the block body are integrally formed may be detachably installed on the frame member 25 in FIG.
By preparing such a top plate abutting body 34 in advance for each pallet with different standards, when a large number of pallets with different standards are disassembled by a plurality of pallet dismantling apparatuses 1a, the block body 9a ₁ The labor for changing the interval between the block bodies 9a ₁ of the contact body 8a _{1 made} of the block body connecting rod 10 each time is saved, and the work efficiency is improved.
Details of the shape of the block body 9a ₁ will be described later.

Next, the process of demolishing the pallet 2 using the pallet demolition apparatus 1a will be described in more detail with reference to FIG.
4A to 4C are cross-sectional views showing a pallet dismantling process by the pallet disassembling apparatus according to the first embodiment of the present invention. The same parts as those described in FIGS. 1 to 3 are denoted by the same reference numerals, and description of the configuration is omitted.
First, when the pallet 2 was inserted into the lower part of the contact body 8a ₁ from the direction indicated by the symbol M in the figure, the pallet 2 was skewered by the rod-shaped body 7a ₁ as shown in FIG. 4 (a). It will be in such a state. At this time, the upper surface of the rod-shaped body 7a ₁ and the lower surface of the upper plate 3 of the pallet 2 are not in contact with each other.
Next, when the hydraulic devices 14a ₁ and 14b ₁ are driven to push up the rod-shaped body 7a _{1 in the} direction indicated by the symbol S in the figure, the upper surface of the rod-shaped body 7a ₁ and the lower surface of the upper plate 3 come into contact with each other, and the pallet 2 Is raised by being locked to the rod-like body 7a ₁ . Further, when the rod-like body 7a ₁ is pushed up, as shown in FIG. 4B, the lower end of the block body 9a ₁ enters the gap of the upper plate 3 and comes into contact with the upper surface of the exposed spar 5.
When the rod-like body 7a ₁ is further pushed up, the upper plate 3 is pushed up by the rod-like body 7a ₁ , while the block 9a ₁ prevents the beam 5 from being raised. That is, a force acts so as to push down the girder 5, and the upper plate 3 to which the nail 6 is locked is separated from the girder 5 as shown in FIG. 4 (c).
The semi-disassembled pallet 2 is turned upside down and reinserted into the lower part of the contact body 8a ₁ from the direction indicated by the symbol M in FIG. 4, and is shown in FIGS. 4 (a) to 4 (c). When the above process is repeated, all the plates locked by the nail 6 are separated from the girder 5 and the dismantling process ends.
Thus, according to the pallet demolition apparatus 1a, the pallet can be quickly disassembled into plates and girders without going through complicated apparatuses and processes. Further, when disassembling, a force that peels off the plate and the girder acts in a direction parallel to the insertion direction of the nail 6, so that there is no fear of damaging the plate or the girder. For this reason, the reuse rate of the board and the girder which comprise a pallet increases.

[2] Next, modified examples of the rod-like body, the block body, and the contact body according to the pallet disassembling apparatus according to the first embodiment of the present invention will be described with reference to FIGS.
(1) First, a modification of the rod-shaped body will be described with reference to FIG. 5. FIG. 5 is a partial view showing a modification of the rod-shaped body of the pallet dismantling apparatus according to the first embodiment of the present invention.
1 to 4, the rod-like body 7a ₁ has a prismatic shape, but is not necessarily limited to this form. For example, an H-shaped steel as shown in FIG. 5 may be arranged and used so that the cross section is substantially I-shaped. In this way, when the H-shaped steel is used as the rod-like body 7a ₂ , it becomes easy to procure parts constituting the pallet dismantling apparatus, and it is inexpensive and excellent in strength.

(2) Next, the block body and its modification will be described with reference to FIG.
First, the shape of the block body 9a _{1 according} to the first embodiment of the present invention will be described. FIG. 6A is an external view of a block body according to the first embodiment of the present invention, and FIG. 6B is an external view of a modified example of the block body.
As shown in FIG. 6A, the block body 9a ₁ is formed of a rectangular steel block having a hole 23 formed in the upper portion, and the plurality of block bodies 9a ₁ are inserted through the hole 23 although not shown. The block body connecting rods 10 are connected.
The dimension of the reference symbol A ₁ related to the block body 9a ₁ is such that the block body 9a ₁ does not contact the upper plate 3 when the block body 9a ₁ is brought into contact with the upper surface of the beam 5 exposed from the gap of the upper plate 3. It is preferable that the width is set slightly smaller than the width of the gap between the plates 3, and in practice, a gap of ₁ to 2 mm may be formed between the upper plate 3 and the block body 9 a ₁ .
On the other hand, when the upper surface of the girder 5 is pressed by the lower surface of the block body 9a ₁ , in order to minimize the pressure per unit area applied to the girder and reduce damage to the girder 5, the rod-like body 7a ₁ is also used as the upper plate 3. In order to avoid the contact between the block body 9a ₁ and the rod-shaped body 7a ₁ when the lower surface of the block body 9a is pushed up, it is desirable that the shape of the lower surface of the block body 9a ₁ and the shape of the upper surface of the exposed beam 5 match. Therefore, it is preferable that the dimension of the code B ₁ related to the block body 9a ₁ is configured to be substantially the same as the width of the beam 5 so as not to exceed the width of the beam 5.
Further, the dimensions of the code C ₁ in FIG. 6 (a) is the total thickness and nail pull stroke dimensions of planks constituting the upper plate 3 and the lower plate 4, when the size C ₁ longer than the length of the nail The upper plate 3 or the lower plate 4 can be completely separated from the beam 5. On the other hand, if the dimension C ₁ is shorter than the length of the nail, the upper plate 3 or the lower plate 4 is not completely separated from the girder 5, and the plate surface comes into contact with the block connecting rod 10 in a state of floating on the girder 5. Stop. Thus, the size of the code C ₁ in the figure may be modified as desired depending on the purpose of the work.
Note that A _{2 to} A ₄ , B _{2 to} B ₄ , and C _{2 to} C _{4 according} to the block body modification example and the contact body modification example described below are the same as in the case of A ₁ , B ₁ , and C _1. It is preferable to set to.

Will now be described block body 9a ₂ is a modified example of the block body 9a _1.
As shown in FIG. 6B, the block body 9a ₂ includes a top plate contact portion 30 and a girder contact portion 31 having a hole 23 above, and the plurality of block bodies 9a ₂ are block bodies through which the hole 23 is inserted. They are connected by a connecting rod 10. The block body 9a ₂ has a larger contact area with the top plate than the block body 9a ₁ , can disperse the pressure transmitted from the beam 5 to the top plate, and can reduce deformation of the top plate. Further, even when the top surface of the block body 9a ₂ is pressed by driving the top plate, the force can be transmitted to the girder contact portion 31 while reducing the deformation of the top plate.

(3) Finally, a modified example of the contact body will be described with reference to FIG.
FIGS. 7A and 7B are external views showing a modification of the contact body of the pallet dismantling apparatus according to the first embodiment of the present invention.
The partial contact bodies 33a and 33b shown in FIGS. 7 (a) and 7 (b) have the same action as that of the block body connecting rod 10 and the block body 9a _{1 of the} contact body 8a _1. Whereas the block body 9a ₁ connected by the connecting rod 10 is slidable or detachable, the partial contact bodies 33a and 33b have contact portions 29a and 29b corresponding to the block body 9a ₁ at the block body connecting rod 10. Since it is formed integrally with the abutting portion support portions 28a and 28b corresponding to the above, it cannot slide and cannot be removed.

As shown in FIGS. 7A and 7B, the partial contact bodies 33a and 33b are configured by contact portions 29a and 29b and contact portion support portions 28 and 28b, respectively, and this contact portion 29a. 29b is in contact with the upper surface of the exposed girders, and the upper surfaces of the contact portion support portions 28a and 28b are in contact with the lower surface of the top plate.
Portion abutting member 33a is to be placed directly above the digits 5, can be prevented to contact the top plate 3 by slightly greater than the width of the upper plate 3 a code L ₁ in FIG. 7 (a). Further, the partial contact body 33 b is arranged in parallel with the upper plate 3 or the lower plate 4 just above the gap between the upper plate 3 or the lower plate 4. Therefore, it is possible to reliably press the upper surface of the digit 5 by configuring to distance substantially coincides connecting side code L ₂ digit 5 in FIG. 7 (b).
Reference numerals A _{3 to} A ₄ , B _{3 to} B ₄ , and C _{3 to} C ₄ in FIGS. 7A and 7B are denoted by reference numeral A ₁ in FIGS. 6A and 6B, respectively. This corresponds to the total width of the gap between the upper plate 3 or the lower plate 4, the girder width indicated by the symbol B ₁ , the thick plate indicated by the symbol C ₁ , and the nail extraction stroke size. Therefore, it is preferable to set the same as these.
By configuring the partial contact bodies 33a and 33b in this way, it is convenient when disassembling a large number of pallets with standardized standards.

The configuration and operation of the pallet dismantling apparatus according to the second embodiment of the present invention will be described below with reference to FIGS. (In particular, corresponding to claim 4)
The pallet demolition apparatus according to the second embodiment of the present invention is provided with a mounting groove in the rod-like body of the pallet demolition apparatus according to the first embodiment, and a pallet is mounted by mounting a partial removal block in the mounting groove. It enables partial decomposition of

[1] First, a configuration when a partial removal block is attached to a pallet dismantling apparatus according to a second embodiment of the present invention will be described with reference to FIGS.
FIG. 8 (a) is an external view of the pallet dismantling apparatus according to the second embodiment of the present invention when a partial punching block is mounted on the rod-shaped body, and (b) is a Q in FIG. 8 (a). It is -Q line arrow sectional drawing. (C) It is sectional drawing at the time of mounting | wearing with the modification of the part extraction block to the rod-shaped body in the pallet demolition apparatus which concerns on the 2nd Embodiment of this invention.
As shown in FIGS. 8A and 8B, a mounting groove 32a for mounting the partial removal block 22a is formed in a concave shape on the side surface of the rod-like body 7b ₁ according to the pallet demolition apparatus 1b ₁ . The partial removal block 22a is slidably fitted into the mounting groove 32a. In actual use, the partial removal block 22a is slid under the upper plate 3 to be replaced or reused. The partial removal block 22a is slid onto the end of the rod-like body 7b _{1 so} that it can be attached and detached. When the partial punching block 22a is not mounted, the entire pallet can be disassembled in the same manner as the pallet dismantling apparatus 1a. Also, without sliding the part-removal block 22a to the end portion of the rod-shaped body 7b _1, it may be detachable for example a part-removal block 22a by, for example, made of rubber of a hard.

In order to reliably separate only the upper or lower plate attempts to replace or reuse, part-removal block 22a width indicated at D ₁ of the in FIG. 8 (a) ~ (c) is the upper plate 3 It is preferable to substantially coincide with the plate width. Further, the dimension C ₅ in the figure is always affected by the height of the girder 5, that is, the value obtained by adding the height of the rod-like body 7 b ₁ and the dimension C ₅ must always be smaller than the height of the girder 5. However, it is set so as to have a dimension obtained by subtracting the thickness of the thick plate from the length of the nail 6. In the case of smaller than this, in order to ensure the release of the upper plate 3 and the lower plate 4, to increase the size C ₅ than the thickness of the planks constituting the 4 least upper 3 or the lower plate There is a need.
Further, the fitting portion of the rod-shaped body 7b ₁ and part-removal block 22b, as shown in FIG. 8 (c), may be configured to extend toward the upper surface of the bar-like member 7b _2. By thus constituting, without reducing the top surface area of the bar-like member 7b _2, may facilitate processing of the fitting portion between the rod-like member 7b _2.

Next, the attachment structure of the partial removal block when H-shaped steel is used as the rod-shaped body will be described with reference to FIG.
Fig.9 (a) is an external view at the time of attaching the block for partial extraction to the rod-shaped body which uses H-shaped steel, (b) is RR arrow sectional drawing in Fig.9 (a).
The partial punching block 22c according to the pallet demolition apparatus 1b ₂ has the same operations and effects as the partial punching blocks 22a and 22b, and the configuration thereof is as shown in FIGS. 9 (a) and 9 (b). , part-removal block 22c is slidably mounted on the upper surface of the rod member 7b _3, it is possible to attachment and detachment of the rod-like body 7b ₃ of the slides in the end portion vent block 22c.
Further, reference numerals D ₂ and C ₆ in the figure are the same as D ₁ and C ₅ in the partial removal blocks 22a and 22b, and thus detailed description thereof is omitted.

Here, the number of the partial punching blocks 22a attached to the pallet dismantling apparatus 1b ₁ will be described.
Part-removal block 22a is may be attached to any of the rod-shaped body 7b ₁ of the pallet disassembling apparatus 1b _1, not all of the rod-shaped body 7b ₁ positioned just below the top plate 3 that attempts to replace or reuse There is no need to mount the partial block 22a. That is, when the upper plate 3 to be replaced is pushed up by the rod-like body 7b ₁ , it is only necessary to hold the upper plate 3 so that it is horizontal, and the number and position of the partial punching blocks 22a to be mounted are problematic. do not do.
Further, when there are a plurality of upper plates 3 to be exchanged or reused, the partial removal block 22a so that the upper plate 3 is supported horizontally just below all the upper plates 3 to be exchanged or reused. By arranging, all the upper plates 3 to be exchanged or reused can be separated from the beam 5 by one dismantling operation.
Note that the number of partial punching blocks 22c attached to the pallet dismantling apparatus 1b ₂ may be changed as appropriate according to the purpose for the same reason.
In this way, by attaching the partial removal blocks 22a to 22c, the pallet dismantling apparatus can be used also for the partial disassembly of the pallet. As a result, the recycling rate of pallets can be improved and waste pallets can be reduced.

In this embodiment, the partial removal blocks 22a to 22c are detachable by sliding. However, the partial removal blocks 22a to 22c do not necessarily need to be moved or detached by sliding, such as a laundry scissors. as a pincer, or configured to sandwich the rod-shaped body 7b _1, 7b ₂ with the grip portion and the elastic body, for example, configured to sandwich the rod-shaped body 7b _1, 7b ₂ by an elastic member such as rubber These may be detachable. That is, as long as the partial punching blocks 22a to 22c are detachably and detachably mounted on the rod-like bodies 7b ₁ and 7b ₂ and have sufficient strength when pressed, the form does not matter.

[2] Next, a process of separating one of the upper plates using the pallet disassembling apparatus according to the second embodiment of the present invention equipped with the partial punching block will be described with reference to FIG.
10 (a) to 10 (c) are cross-sectional views showing a pallet part disassembly process by the pallet disassembly apparatus according to the second embodiment of the present invention. The same parts as those described in FIGS. 1 to 3 are denoted by the same reference numerals, and description of the configuration is omitted. Here, a process of separating the upper plate 24 of the pallet 2 shown in FIGS. 10 (a) to 10 (c) will be described.
First, the partial removal block 22a is mounted on the rod-like body 7b ₁ , and when the pallet 2 is inserted into the lower portion of the contact body 8a ₁ , the partial removal block 22a is slid so as to be positioned directly below the upper plate 24.
Then, as shown in FIG. 10A, the pallet 2 is inserted into the lower portion of the contact body 8a ₁ from the direction indicated by the symbol M in the drawing. At this time, the upper surface of the partial punching block 22a attached to the rod-like body 7b ₁ and the lower surface of the upper plate 24 are not in contact with each other.
Next, when the hydraulic devices 14a ₁ and 14b ₁ are driven to push up the plurality of rod-like bodies 7b ₁ in the direction indicated by symbol S in the figure, first, the partial removal block 22a attached to the rod-like body 7b _{1 is} moved. The upper surface contacts the lower surface of the upper plate 24. Then, the pallet 2 is raised by being locked to the rod-like body 7b ₁ . Further, when the rod-like body 7b ₁ is pushed up, as shown in FIG. 10B, the lower end of the block body 9a ₁ related to the contact body 8a ₁ enters the gap of the upper plate 3 and hits the upper surface of the beam 5. Touch.
Subsequently, when the rod-like body 7b ₁ is further pushed up, only the upper plate 24 is pushed up by the partial punching block 22a, while the raising of the girder 5 is prevented by the block body 9a ₁ . As a result, a force acts so as to push down the girder 5 and only the upper plate 24 locked by the nail 6 is separated from the pallet 2 as shown in FIG.

The configuration and operation of the pallet dismantling apparatus according to the third embodiment of the present invention will be described below with reference to FIG. (In particular, corresponding to claim 2)
FIGS. 11A to 11C are sectional views showing a pallet dismantling process by the pallet disassembling apparatus according to the third embodiment of the present invention. The same parts as those described in FIGS. 1 to 10 are denoted by the same reference numerals, and description of the configuration is omitted.
Third pallet disassembling apparatus 1d according to the embodiment of the present invention, like the pallet disassembling apparatus according to the first and second embodiments, the rod-shaped body 7a ₁ is driven by a hydraulic unit 14a _1, 14b ₁ However, the upper plate 3 of the pallet 2 is separated from the girder 5 by driving and pushing down the contact body 8a ₁ disposed substantially above the rod-like body 7a ₁ with the hydraulic devices 14c ₁ and 14d _1. It is.
Next, a process of separating the upper plate 3 of the pallet 2 by the pallet demolition apparatus 1d will be described with reference to FIGS.

As shown in FIG. 11 (a), first, from the direction indicated by reference sign M in the drawing, by inserting the pallet 2 to the pallet disassembling apparatus 1d for locking the pallet 2 on the upper surface of the rod-shaped body 7a _1. That is, the hydraulic devices 14a ₁ and 14b ₁ are driven so that the lower surface of the pallet 2, that is, the lower surface of the lower plate 4 is lifted from the roller 19, so that the rod-shaped body 7 a ₁ is moved in the direction indicated by the symbol S in the drawing. Raise and adjust to desired height.
When pushing down the abutting member 8a ₁ in the direction indicated by reference numeral T in FIG drives the hydraulic unit 14c _1, 14d _1, as shown in FIG. 11 (b), first, the block body 9a ₁ The lower end enters the gap of the upper plate 3 and comes into contact with the upper surface of the girder 5.
When the abutting body 8a ₁ is further pushed down, the upper plate 3 is locked by the rod-like body 7a ₁ to prevent the lowering, while the girder 5 is further pushed down by the block body 9a ₁ . That is, a force acts to push up the upper plate 3. As a result, as shown in FIG. 11 (c), the upper plate 3 to which the nail 6 is locked is separated from the girder 5.
Note that by similarly to the pallet disassembling apparatus 1a of the first embodiment, and reinserted by reversing the upper and lower half-dismantled pallet 2 to the abutment body lower part of 8a _1, repeat the above steps, the pallet 2 All plates can be separated from the spar 5.
As described above, in the pallet disassembling apparatus 1d, the contact body 8a ₁ is made movable, and the contact body 8a ₁ can be substantially disassembled, so that, for example, a conventional drive mechanism for the contact body 8a ₁ can be used. The drive mechanism of the press machine can be applied, and the cost for manufacturing the pallet dismantling apparatus 1d can be reduced.

Hereinafter, the configuration and operation of the pallet dismantling apparatus according to the fourth embodiment of the present invention will be described with reference to FIGS. 14 to 16. (In particular, corresponding to claim 3)
FIG. 12A is an outline view of a main part of a pallet dismantling apparatus according to the fourth embodiment of the present invention, and FIG. 12B is a cross-sectional view taken along the line U-U in FIG. Fig.13 (a) is a principal part external view of the pallet demolition apparatus which concerns on the 4th Embodiment of this invention, (b) is the VV arrow directional cross-sectional view in Fig.13 (a). FIG. 14A is a main part outline view of a pallet dismantling apparatus according to a fourth embodiment of the present invention, and FIG. 14B is a cross-sectional view taken along line WW in FIG.
The same parts as those described in FIGS. 1 to 11 are denoted by the same reference numerals, and description of the configuration is omitted. Further, the contact body 8a ₂ in the present embodiment is the same structure as the contact body 8a ₁ described in the first embodiment, but is vertically inverted, and is distinguished from the contact body 8a _1. Therefore, the contact body 8a ₂ is used. Further, the pallet disassembling apparatus according to the present embodiment specifically explains the invention described in claim 3, and each component of the invention described in claim 3 is expressed as upper and lower. This part is read as left and right.
The pallet demolition apparatus 1e according to the fourth embodiment of the present invention separates all of the upper plate 3 and the lower plate 4 of the pallet 2 from the girder 5 at a time in a series of demolition processes.

Next, a process of disassembling the pallet 2 by the pallet disassembling apparatus 1e will be described with reference to FIGS.
In the following description, in order to explain the positional relationship between the components, in FIGS. 12 to 14, the direction indicated by the symbol M is upward in the direction of gravity, the direction indicated by the symbol X is indicated by the right direction, and the symbol Y is indicated. However, these directions are merely for explaining the relative positional relationship, and do not limit the configuration of the pallet dismantling apparatus 1e.
As shown in FIG. 12B, the rod-like body 7a ₁ related to the pallet dismantling device 1e is pressed rightward (direction indicated by the symbol Y in FIG. 12) by the hydraulic devices 14a ₁ and 14b ₁ to form a rod-like shape. The body 7c is configured to be pressed leftward (in the direction indicated by the symbol X in FIG. 12) by the hydraulic devices 14a ₂ and 14b ₂ , and the contact body 8a ₁ is pressed by the hydraulic devices 14c ₁ and 14d _1. The abutting body 8a ₂ is configured to be pressed leftward by the hydraulic devices 14c ₂ and 14d ₂ .
When dismantling the pallet 2 in this way constructed pallet disassembling apparatus 1e, first, in a state where the reset all hydraulic devices 14a ₁ ~14d _2, i.e., all of the hydraulic apparatus 14a ₁ ~14d ₂ is rod-like body In a state separated from 7a ₁ and 7c, the pallet 2 sandwiched and carried by a transfer arm or the like from the direction indicated by the symbol M in FIGS. 12 (a) and 12 (b) is loaded into the rod-like bodies 7a ₁ and 7c. Insert. At this time, as shown in FIG. 12A, the contact surface of the block body 9a ₁ related to the contact body 8a ₁ is opposed to the left side surface of the beam 5 exposed from the gap of the upper plate 3, The contact surface of the block body 9a ₁ related to the contact body 8a ₂ is opposed to the right side surface of the beam 5 exposed from the gap between the plates 4. That is, the contact body 8a ₁ and the contact body 8a ₂ are arranged symmetrically about the pallet 2.
Next, as a first stage, the hydraulic devices 14c ₁ and 14d ₁ and the hydraulic devices 14c ₂ and 14d ₂ are driven to press the contact body 8a ₁ and the contact body 8a ₂ from the left and right directions of the pallet ₂ , respectively. The contact surfaces of the block body 9a ₁ related to the contact body 8a ₁ and the contact body 8a ₂ are brought into contact with the left and right side surfaces of the beam 5. At this time, as shown in FIGS. 13A and 13B, the block body 9a ₁ is fitted in the gap between the upper plate 3 and the lower plate 4, and the girder 5 is pressed from both the left and right sides, and the disassembly described later is performed. In the second stage of the process, the girder 5 is held so as not to move left and right.

Subsequently, as a second stage, the hydraulic devices 14a ₁ and 14b ₁ are driven to press the rod-like body 7a ₁ in the direction (left direction) indicated by the symbol Y in FIG. The devices 14a ₂ and 14b ₂ are driven to press the rod-like body 7c in the direction indicated by the symbol X in the figure. By this operation, the upper plate 3 is pushed rightward by the rod-like body 7a ₁ and the lower plate 4 is pushed leftward by the rod-like body 7c. As a result, as shown in FIGS. 14A and 14B, the upper plate 3 and the lower plate 4 are separated so as to float on the left and right side surfaces of the beam 5 of the pallet 2. After this process, when all the hydraulic devices 14a _{1 to} 14d ₂ are reset, that is, returned to the position shown in FIG. 12 (b), the upper plate 3 and the girders 5 of the disassembled pallet 2 fall.
In the second stage of the dismantling process, it is not always necessary to drive the hydraulic devices 14a ₁ and 14b ₁ and the hydraulic devices 14a ₂ and 14b ₂ at the same time, and only one of them may be driven depending on the purpose of the work. good. Furthermore, according to the mounting the second embodiment of the part-removal block 22a and part-removal block 22b described in the form rod-shaped body 7a ₁ or rod member 7c, the desired upper plate 3 and the lower plate 4 only It can also be separated.
According to the pallet demolition apparatus 1e configured as described above, the pallet 2 can be disassembled at a higher speed than the pallet demolition apparatuses according to the first to third embodiments.

  The pallet disassembling apparatus according to the present invention is an apparatus that dismantles a part or all of a cargo carrying pallet in which a wood-based girder and a plate are mainly fixed by a fastener while reducing damage to the girder and the plate. It is provided and has a high possibility of use when disassembling a plurality of types of pallets with a single device, repairing a part of the pallet, or reusing the material of the pallet after dismantling.

1 is an external view of a pallet dismantling apparatus according to a first embodiment of the present invention. (Corresponding to claim 2) (A) It is a top view of the pallet demolition apparatus which concerns on 1st Embodiment of this invention, (b) It is a side view of the pallet demolition apparatus which concerns on 1st Embodiment of this invention, (c) is It is a side view which concerns on the modification of the pallet demolition apparatus which concerns on the 1st Embodiment of this invention. FIG. 2 is an external view of a main part of the pallet dismantling apparatus according to the first embodiment of the present invention. (A)-(c) It is sectional drawing which shows the pallet demolition process by the pallet demolition apparatus which concerns on the 1st Embodiment of this invention. It is a fragmentary figure which shows the modification of the rod-shaped body of the pallet demolition apparatus which concerns on the 1st Embodiment of this invention. (A) It is an external view of the block body which concerns on the 1st Embodiment of this invention. (B) It is an external view of the modification of a block body. (A), (b) It is an external view which shows the modification of the contact body of the pallet demolition apparatus which concerns on the 1st Embodiment of this invention. (A) It is an external view at the time of mounting | wearing with the block for part extraction in the rod-shaped body in the pallet demolition apparatus which concerns on the 2nd Embodiment of this invention. (B) It is a QQ arrow directional cross-sectional view in Fig.8 (a). (C) It is sectional drawing at the time of mounting | wearing with the modification of the part extraction block to the rod-shaped body in the pallet demolition apparatus which concerns on the 2nd Embodiment of this invention. (A) It is an external view at the time of mounting | wearing with the block for part extraction to the rod-shaped body which uses H-shaped steel. (B) It is the RR arrow sectional drawing in Fig.9 (a). (A)-(c) It is sectional drawing which shows the pallet part decomposition | disassembly process by the pallet demolition apparatus which concerns on the 2nd Embodiment of this invention. (A)-(c) It is sectional drawing which shows the pallet demolition process by the pallet demolition apparatus which concerns on the 3rd Embodiment of this invention. (A) It is a principal part external view of the pallet demolition apparatus which concerns on the 4th Embodiment of this invention. (B) It is a UU arrow directional cross-sectional view in Fig.12 (a). (A) It is a principal part external view of the pallet demolition apparatus which concerns on the 4th Embodiment of this invention. (B) It is a VV arrow directional cross-sectional view in Fig.13 (a). (A) It is a principal part external view of the pallet demolition apparatus which concerns on the 4th Embodiment of this invention. (B) It is a WW arrow directional cross-sectional view in Fig.14 (a).

Explanation of symbols

_{1a, 1b 1, 1b 2,} 1c~e ... pallet disassembling apparatus 2 ... pallet 3, 3a, 3e ... upper 4 ... lower plate 5 ... digit 6 ... nails _{7a 1, 7a 2, 7b 1} ~7b 3, 7c ... Bar-shaped bodies 8a ₁ , 8a ₂ ... abutting bodies 9a ₁ , 9a ₂ ... block bodies 10 ... block body connecting rods 11a ₁ , 11a ₂ ... top plate 12 ... counter balance 13 ... rod-shaped body connecting rods 14a _{1 to} 14d ₁ , 14a _{2 to} 14d ₂ ... Hydraulic devices 15a and 15b ... Press plates 16a and 16b ... Support plates 17a to 17d ... Struts 18a to 18d ... Stand 19 ... Rollers 20 ... Pipes 21 ... Stoppers 22a to 22c ... Partial removal blocks 23 ... Holes 24 ... Upper plate 25 ... Frame member 26 ... Space 27 ... Space 28a, 28b ... Abutting portion support portion 29a, 29b ... Abutting portion 30 ... Top plate abutting portion 31 ... Girder abutting portion 32a, 32b ... Mounting groove 33a, 3 b ... portion abutting member 34 ... top plate contact member

Claims (6)

  A pallet dismantling device for disassembling a pallet configured by arranging a plurality of girders of the same length in parallel and arranging a plurality of upper and lower plates on the upper and lower surfaces of the girders so as to be orthogonal to the girders. A rod-like body inserted into a space formed by the upper plate, the lower plate and the spar of the pallet, a contact body abutting on an upper surface of the spar exposed from between the arranged upper plates, A pallet disassembling apparatus comprising: a fixing mechanism that fixes a contact body at a desired height; and a drive mechanism that pushes up the rod-shaped body.   A pallet dismantling device for disassembling a pallet configured by arranging a plurality of girders of the same length in parallel and arranging a plurality of upper and lower plates on the upper and lower surfaces of the girders so as to be orthogonal to the girders. And a bar-like body inserted into a space formed by the upper plate, the lower plate and the girder of the pallet, a contact body abutting on the upper surface of the girder exposed from between the arranged upper plates, A pallet disassembling apparatus comprising: a fixing mechanism for fixing a rod-like body at a desired height; and a drive mechanism for pushing down the contact body.   A pallet dismantling device for disassembling a pallet configured by arranging a plurality of girders of the same length in parallel and arranging a plurality of upper and lower plates on the upper and lower surfaces of the girders so as to be orthogonal to the girders. A bar-like body inserted into a space formed by the upper plate, the lower plate and the girder of the pallet, and a first abutting body abutting on the upper surface of the girder exposed from between the arranged upper plates A second contact body that contacts the lower surface of the beam exposed from the gap between the lower plates, a first drive mechanism that pushes up at least one of the rod-shaped bodies, and the first contact A second drive mechanism that pushes down a body, a third drive mechanism that pushes down at least one rod-like body other than the rod-like body pushed up by the first drive mechanism among the rod-like bodies, and the second contact body Having a fourth drive mechanism to push up Pallet dismantling apparatus according to symptoms.   The pallet disassembling apparatus according to any one of claims 1 to 3, further comprising a partial removal block that covers at least a part of the upper surface or the lower surface of the rod-like body and is provided so as to be detachable or slidable. .   The contact body, the first contact body, and the second contact body include a contact portion that contacts an upper surface or a lower surface of the beam exposed from a gap between the upper plate and the lower plate, and the contact body. The pallet disassembling apparatus according to claim 1, further comprising a contact portion holding portion that connects the upper end portion or the lower end portion of the pallet. The contact body, the first contact body, and the second contact body include a block body having a hole and a connecting rod that is inserted through the hole and holds the block body in a slidable or detachable manner. The pallet dismantling apparatus according to any one of claims 1 to 4, wherein the pallet disassembling apparatus is characterized.