JP4236658B2 - Pallet repair device - Google Patents

Description

  The present invention relates to a pallet repair device for removing an edge board from a pallet.

  In physical distribution, pallets for transporting articles to be transported together are used for efficient transportation. Even when the board constituting the main surface is dirty or damaged, the pallet may be reused by being repaired. Repair is performed by removing a dirty or damaged board from the pallet and attaching a new board. The board to be repaired is often an edge board arranged at both ends of the pallet. This is because the edge board is located at the end of the pallet and is therefore easily dirty or damaged. The edge board is removed from the pallet by, for example, a method using a bar or the like, or a method of cutting a nail that fixes the board to the pallet body. Since this background art is a so-called known invention, it does not relate to a known literature invention. Therefore, the applicant recognizes that there is no prior art document to be described.

  However, in the above method, when the edge board is removed, the pallet body may be damaged, making it difficult to reuse the pallet. In addition, both the method using a bar and the like and the method of cutting a nail are time-consuming and cannot be said to be a simple method.

  The present invention has been made to solve the above problems, and a pallet repairing apparatus that can easily and easily remove an edge board of a pallet without damaging the edge board and other components of the pallet. The purpose is to provide.

  A pallet repair device according to the present invention is a pallet repair device that removes an edge board that constitutes a main surface of a pallet on which the object to be transported is loaded, and a base having a mounting surface on which the pallet is placed; A holding member that has a pressing surface that faces the mounting surface and presses the pallet; and a claw member that is rotatably installed so that the tip of the pressing member forms an arc from the mounting surface side toward the pressing surface side. The claw member is located on the opposite side of the mounting surface with the center of rotation sandwiching the pressing surface, and the tip portion sandwiches the pressing surface without contacting the holding member from the mounting surface side. It is provided so that it may rotate toward the pressing surface side.

  In the pallet repairing apparatus according to the present invention, the pallet is placed on the mounting surface of the base in a state where the claw member is inserted into the insertion port of the pallet and the edge board is positioned on the rotation track of the claw member. And the pressing surface of the holding member. In this state, the claw member is rotated from the placement surface side toward the pressing surface side, and the edge board can be removed by applying a force for removal to the edge board by the rotation.

  According to the present invention, the edge board can be removed by a uniform operation of positioning and pressing the pallet and rotating the claw member, and simple removal can be realized. Moreover, since the components of the pallet other than the edge board are only pressed, they are not damaged. In addition, since the claw member is provided so that the center of rotation is located on the opposite side of the mounting surface across the pressing surface, force is sequentially applied to the edge board according to the state of removal. For example, no excessive force is applied to one place. Therefore, it is possible to remove the edge board without damaging it.

  Moreover, it is preferable that a nail | claw member is provided with the contact surface contact | abutted to an edge board, and the contact surface is formed along one plane. According to this configuration, since the portion of the claw member that applies force to the edge board is widened, the force for removal can be sufficiently transmitted, and easier removal is possible.

  The pallet repair device further includes a drive mechanism for rotating the claw member, and the drive mechanism is mounted between the rotation center and the distal end portion of the claw member and has a placement surface and a pressing surface. It is preferable to have a push rod that is driven in a direction opposite to each other. According to this configuration, in the pallet repair device, a force for rotation can be applied to the claw member, and the implementation of the present invention becomes easy.

  Moreover, it is preferable that the thickness of the rotation direction in the part to which the push rod of the claw member is attached is larger than the thickness of the other part. According to this configuration, it is possible to maintain sufficient strength against the force for driving the claw member, and it is possible to more reliably implement the present invention.

  Further, it is preferable that the holding member can be driven in a direction in which the placement surface and the pressing surface face each other, and the pallet is pressed by pressing the board adjacent to the edge board to be removed by the driving. According to this configuration, the pallet can be fixed more reliably and can be removed more easily.

  According to the present invention, it is possible to remove the edge board by uniform operations such as positioning of the pallet, pressing and rotation of the claw member, and simple removal can be realized. Further, according to the present invention, since an excessive force is not applied for the removal, the removal can be realized without damaging the edge board and the components of the pallet other than the edge board.

  Hereinafter, preferred embodiments of a pallet repair apparatus according to the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, the dimensional ratios in the drawings do not necessarily match those described.

  A pallet repair device 1 according to this embodiment is shown in FIGS. FIG. 1 shows the left side of the pallet repair device 1. FIG. 2 shows the front surface of the pallet repair device 1 (the surface seen from the right side in FIG. 1). FIG. 3 shows the top surface of the pallet repairing apparatus 1. The pallet repair device 1 is a device that removes an edge board constituting the main surface of the pallet.

  As shown in FIGS. 1 to 3, the pallet repair device 1 is provided with components that act on the pallet in order to remove the edge board inside a rectangular parallelepiped frame 10. These components are a base 11, a holding member 12, a claw member 14, push rods 13 and 17, a rotation shaft 15, and a rotation shaft support portion 16 described below. The frame 10 is configured by combining a plurality of columnar members 10a, 10b, and 10c into a rectangular parallelepiped shape. That is, the frame 10 has a columnar member 10b assembled in a rectangular shape on the upper side and a columnar member 10c assembled in a rectangular shape on the lower side with respect to the columnar member 10a provided in the vertical direction. It is formed by fixing to the side. The frame 10 is configured so that a pallet can be inserted from the front direction shown in FIG. 2 (the right direction in FIG. 1). In order to stabilize the pallet repair apparatus 1, the frame body 10 is preferably fixed to the installation surface 20 on which the pallet repair apparatus 1 is installed by a fixing member 18, for example, an anchor bolt.

  The frame body 10 is provided with a base 11 having a placement surface 11a on which a pallet is placed. The placement surface 11a is preferably a rectangular planar shape so that a portion along the edge board can be placed. Specifically, the base 11 is configured by fixing both ends in the long side direction of a rectangular plate-shaped member at the same height position of the two columnar members 10 a in the frame 10. . Further, a triangular reinforcing member 19 is provided between the end of the base 11 and the columnar member 10a to which the end is fixed. Thereby, the base 11 is fixed to the frame 10 so that the mounting surface 11a becomes horizontal when the pallet repairing apparatus 1 is installed. The base 11 is preferably provided with a positioning portion 11b at the tip so that the pallet can be positioned when the pallet is inserted and placed on the mounting surface 11a. Specifically, the positioning part 11b is formed so that it abuts when the end of the plate-like member constituting the base 11 is bent and the pallet is inserted.

The frame 10 is provided with a holding member 12 having a pressing surface 12a that faces the mounting surface 10 of the base 11 and presses the pallet. The holding member 12 is configured by a member having a rectangular surface that serves as the pressing surface 12a. The holding member 12 is provided so that the long side direction of the pressing surface 12 a is the same as the long side direction of the mounting surface 11 a of the base 11. The pressing surface 12a is flat so that the pallet can be securely pressed. The holding member 12 is supported by two push rods 13 so as to be suspended from above (the direction opposite to the base 11). When the push rod 13 is driven by a drive device (not shown) such as a hydraulic pump provided in the pallet repair device 1, the holding member 12 is moved in the vertical direction d ₁ (mounting surface 11a) in FIGS. And the pressing surface 12a can be driven in the opposite direction). The holding member 12 may be driven by a user operation or automatically by detecting that a pallet has been inserted by a sensor.

  The holding member 12 fixes the pallet between the mounting surface 11a and the pressing surface 12a by driving the pallet while the pallet is placed on the mounting surface 11a of the base 11 and pressing the pallet. The part where the pallet is pressed is preferably the board next to the edge board to be removed. Moreover, it is preferable that the width of the pressing surface 12a is substantially the same as that of the board. Thereby, a pallet can be fixed more reliably and an edge board can be easily removed. The pressing pressure at this time is preferably a pressure that can securely fix the pallet, for example, about 6.5 MPa.

  As shown mainly in FIG. 1, the base 11 and the holding member 12 are provided along one vertical surface of a rectangular parallelepiped shape in the frame body 10.

The frame body 10 is provided with a claw member 14 that applies a removal force to the edge board in a state of being inserted into the insertion port of the pallet via the rotation shaft 15 and the rotation shaft support portion 16. As shown mainly in FIG. 3, the claw member 14 has a shape extending in a direction perpendicular to the placement surface 11a and the pressing surface 12a. As shown in FIG. 1, the claw member 14 has a distal end portion 14 a that does not contact the holding member 12, and a pressing surface 12 a that presses the pallet with the pressing surface 12 a sandwiched from the mounting surface 11 a side to the pressing surface 12 a side. Rotate over Figure 1 shows the direction _{r 1} of the rotation. By this rotation, the claw member 14 applies a removal force to the edge board. The claw member 14 has a rear end portion 14b fixed to a rotation shaft 15 that is a rotation center thereof, and can be rotated by rotating the rotation shaft 15. For example, the rear end portion 14b of the claw member 14 is fixed to the rotation shaft 15 by passing the rotation shaft 15 through the rear end portion 14b (with a hole).

  As shown in FIG. 1, the claw member 14 has a shape that tapers toward the distal end portion 14 a when viewed from the side so that it can be inserted into the insertion port of the pallet. The claw member 14 has a thickness sufficient to apply a force to the pallet in the rotating direction. The claw member 14 includes an abutment surface 14c that abuts when applying force to the edge board. The contact surface 14c is a surface on the side of the pressing surface 12a in the rotation direction of the claw member 14. The contact surface 14c is formed along one plane. The contact surface 14c has a rectangular shape, and the long side direction is the radial direction of rotation. The claw member 14 is formed of a member such as steel that can sufficiently apply a removal force to the edge board.

  A plurality of claw members 14 are preferably provided. As shown in FIGS. 2 and 3, four claw members 14 are provided in the present embodiment. The two claw members 14 on the end side are provided so as to be positioned in the vicinity of each end girder member in the pallet to be described later when inserted into the insertion port of the pallet. Further, the two inner claw members 14 are provided so as to be positioned in the vicinity of both sides of the central girder member in the pallet described later when inserted into the insertion port of the pallet. The above-described position of the claw member 14 is to efficiently apply a removal force to the edge board.

Further, the pallet repair device 1 includes a drive mechanism for rotating the claw member 14. The drive mechanism includes a push rod 17 and a drive device (not shown) such as a hydraulic pump. The push rod 17 is attached between the rotation center of the claw member 14 and the tip end portion 14a on the mounting surface 11a side in the rotation direction. As shown mainly in FIG. 1, the claw member 14 rotates when the push rod 17 is driven in the vertical direction d ₁ (the direction in which the mounting surface 11 a and the pressing surface 12 a face each other) by the driving device. sell. The pressure of the force applied to the edge board by rotation is preferably set to a pressure at which the edge board can be reliably removed, for example, about 6.5 MPa. Note that the push rods 17 do not have to be attached to all the claw members 14, and may be provided on the claw members 14 at both ends as shown in FIGS. 2 and 3, for example. The force applied to the claw member 14 to which the push rod 17 is attached by the push rod 17 is transmitted via the rotating shaft 15 to the claw member 14 to which the push rod 17 is not attached.

  The thickness of the claw member 14 to which the push rod 17 is attached is larger in the rotational direction than the thickness of the other part of the claw member 14. This is to keep the claw member 14 sufficiently strong against the driving force. The claw member 14 may be rotated by a user operation or automatically by detecting that a pallet has been inserted by a sensor.

  As shown in FIGS. 1 to 3, the rotation shaft 15 includes a plurality of rotation shaft support portions 16 provided on the surface side facing the surface along which the base 11 and the holding member 12 are aligned in the rectangular parallelepiped shape of the frame body 10. It is provided in the frame 10 by being held in a rotatable state. Specifically, the rotation shaft support portion 16 is provided with a hole, and the rotation shaft 15 is held in a rotatable state by passing the rotation shaft 15 through the hole. The rotation shaft 15 is provided so as to be parallel to the long side direction of the mounting surface 11a and the long side direction of the pressing surface 12a.

  It is preferable that the portion of the rotation shaft 15 supported by the rotation shaft support portion 16 has a cylindrical shape so that it can be easily rotated. Moreover, it is preferable that the part which fixes the rear-end part 14b in the rotating shaft 15 is a prismatic shape so that the nail | claw member 14 may not slide with respect to the rotating shaft 15. FIG. Further, the rotation shaft 15 is provided so as to be positioned on the opposite side of the mounting surface 10 of the base 11 with the pressing surface 12a in a state of pressing the pallet.

  Next, a pallet to be repaired by the pallet repair device 1 will be briefly described. FIG. 4 shows the pallet 30. The pallet 30 to be repaired by the pallet repairing apparatus 1 is mainly wooden. The pallet 30 is configured by arranging girder members 31 which are three square members in parallel, and a plurality of boards 32 and 33 are fixed to the girder member by nails on both sides of the girder member 31. The main surface on which the transportation object is loaded is constituted by the boards 32 and 33.

The four edge boards 33 located at the ends of the plurality of boards 32 and 33 are easily damaged, and therefore, members wider than the other boards are used. The edge board 33 is removed by the pallet repairing apparatus 1. The two edge boards 33 facing each other with the girder member 31 therebetween constitute an insertion port 34 of the pallet 30. The insertion port 34 is an opening into which a fork or the like is inserted, and the claw member 14 is inserted in the pallet repair device 1 when the edge board 33 is removed. The pallet 30 is inserted into the pallet repair device 1 in a direction d _{2 in} which the main surface is horizontal and parallel to the girder member 31 (that is, the insertion port faces the pallet repair device 1). The

  Then, operation | movement of the apparatus 1 for pallet repair is demonstrated using FIGS. 5-7 which is the figure which showed the apparatus 1 for pallet repair from the side surface. First, the pallet 30 is inserted into the pallet repair apparatus 1. As shown in FIG. 5, it is preferable to prepare an auxiliary base 40 in advance so that the pallet 30 can be easily inserted. The auxiliary table 40 has a surface that is substantially the same height as the mounting surface 10 of the base 11 of the pallet repair device 1 for loading and conveying the pallet 30. A plurality of rollers 41 are provided on the surface of the auxiliary base 40 to facilitate the conveyance of the pallet 30.

As shown in FIG. 5, the pallet 30 is placed on the auxiliary table 40 with the main surface parallel to the mounting surface 11 a of the base 11 of the pallet repairing apparatus 1. Pallet 30 is inserted an auxiliary table 40 above are transported in the direction d ₂ to the pallet repair apparatus 1. At that time, the edge board 33a to be removed is positioned on the pallet repair device 1 side of the upper surface (the surface on the pressing surface 12a side). This conveyance may be performed by the user or automatically.

  As shown in FIG. 6, the pallet 30 is inserted and positioned until it hits the positioning portion 11b of the base 11, and is placed on the placement surface 11a. The positioning of the pallet 30 may be performed by abutting the pallet 30 against the contact surface 14 c of the claw member 14. Further, when the pallet 30 is inserted, the push rod 13 attached to the holding member 12 in advance is controlled, for example, so that an interval greater than the thickness of the pallet 30 is provided between the mounting surface 11a and the pressing surface 12a. Keep it. By this positioning, the board 32a adjacent to the edge board 33a is located at a position where it can be pressed by the pressing surface 12a.

Subsequently, as shown in FIG. 6, the push rod 13 is controlled to drive the holding member 12 so that the pressing surface 12a presses the board 32a adjacent to the edge board 33a to be removed. By this pressing, the pallet 30 is pressed by the mounting surface 11a of the base 11 and the pressing surface 12a of the holding member 12, and moves in the vertical direction d ₁ (the direction in which the mounting surface 11a and the pressing surface 12a face each other). It becomes a state that can not be. The claw member 14 is inserted into the insertion port 34 of the pallet 30, and the edge board 33 a to be removed is positioned on the rotation path of the claw member 14.

Subsequently, a force for driving the push rod 17 attached to the claw member 14 in the upward direction d ₃ (direction from the placement surface 11a toward the pressing surface 12a) is applied. In accordance with the force applied to the push rod 17, a force that rotates in the direction r ₂ (the direction from the placement surface 11a toward the push surface 12a) is applied to the claw member 14. This rotating force is applied to the edge board 33a from the contact surface 14c of the claw member 14. Since the pallet 30 is pressed so as not to move in the direction as described above, the edge board 33 a is removed by the force received from the claw member 14.

  The claw member 14 is provided so that its rotation center (rotation shaft 15) is located on the opposite side of the mounting surface 11a across the pressing surface 12a, so that it is removed from the edge board 33a. Depending on the state, force is sequentially applied from the contact surface 14 c of the claw member 14. Therefore, an excessive force is not applied to the edge board 33a, for example, at one place. When the edge board 33a is removed, the tip 14a of the claw member 14 is positioned above the pallet 30 (position on the holding member 12 side with respect to the pallet 30) as shown in FIG.

  In addition, since the nail which fixed the edge board 33a may remain in the part which the edge board 33a removed in the pallet 30, it presses with the pressing surface 12a of the holding member 12, and crushes the nail. May be. By crushing the nail, the pallet 30 can be easily reused. Moreover, you may remove the edge board 33 of the other pallet 30 sequentially in the above-mentioned procedure. In that case, in order to make it easy to insert the pallet 30 in a predetermined direction, the auxiliary base 40 may be provided with a function of rotating the pallet 30.

  As described above, according to the pallet repair device 1 of the present embodiment, the edge board 33a can be removed by a uniform operation of positioning and pressing the pallet 30 and rotating the claw member 14, and simple removal. Can be realized. Moreover, since the components of the pallet 30 other than the edge board 33a are only pressed, they are not damaged. Further, for example, an excessive force is not applied to the edge board at one place. Therefore, it is possible to remove the edge board without damaging it. Since the pallet 30 is not damaged by pulling, it is easy to reattach the edge board to the pallet 30 for reuse.

  Further, if the contact surface 14c of the claw member 14 is formed along a single plane as in the present embodiment, the portion of the claw member 14 to which force is applied to the edge board 33a becomes wider, so that it can be removed. It is possible to sufficiently convey the power of the above, and it is possible to remove it more easily.

  Moreover, if the force which rotates the nail | claw member 14 with the drive mechanism containing the push rod 17 attached to the nail | claw member 14 like this embodiment is applied, implementation of this invention will become easy.

  Further, as in this embodiment, if the thickness of the claw member 14 to which the push rod 17 is attached is larger than the thickness of the other portions of the claw member 14, the claw member 14 is Sufficient strength can be maintained with respect to the driving force, and the present invention can be implemented more reliably. In addition, when the nail | claw member 14 is comprised with a member with sufficient intensity | strength, it does not necessarily need to do as mentioned above.

  Further, if the holding member 12 can be driven as in this embodiment, the pallet 30 can be more reliably fixed, and the edge board 33a can be removed more easily.

It is a side view of the apparatus for pallet repair concerning the embodiment of the present invention. It is a front view of the apparatus for pallet repair concerning the embodiment of the present invention. It is a top view of the apparatus for pallet repair concerning the embodiment of the present invention. It is a perspective view of the pallet of the repair object of the apparatus for pallet repair. It is a figure for demonstrating operation | movement of the apparatus for pallet repair which concerns on embodiment of this invention. It is a figure for demonstrating operation | movement of the apparatus for pallet repair which concerns on embodiment of this invention. It is a figure for demonstrating operation | movement of the apparatus for pallet repair which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Pallet repair apparatus, 10 ... Frame, 11 ... Base, 11a ... Mounting surface, 11b ... Positioning part, 12 ... Holding member, 12a ... Pushing surface, 13 ... Push rod, 14 ... Claw member, 14a ... Front end, 14b ... rear end, 14c ... abutment surface, 15 ... rotating shaft, 16 ... rotating shaft support, 17 ... push rod, 30 ... pallet, 31 ... girder member, 32 ... board, 33 ... edge Board, 34 ... Insert.

Claims (5)

A pallet repair device that removes an edge board that constitutes the main surface of the pallet for loading an object to be transported on the main surface,
A base having a mounting surface on which the pallet is placed;
A holding member facing the mounting surface and having a pressing surface for pressing the pallet;
A claw member that is rotatably installed so that its tip portion forms an arc from the placement surface side toward the pressing surface side,
The claw member has a center of rotation located on the opposite side of the placement surface with the pressing surface sandwiched therebetween, and the tip portion of the claw member with the pressing surface interposed therebetween without contacting the holding member. It is provided so as to rotate from the surface side to the pressing surface side,
Pallet repair device characterized by that.   The pallet repair device according to claim 1, wherein the claw member includes a contact surface that contacts the edge board, and the contact surface is formed along a single plane. A drive mechanism for rotating the claw member;
The drive mechanism includes a push rod that is attached between the rotation center of the claw member and the tip portion and that drives in a direction in which the mounting surface and the pressing surface face each other.
The apparatus for pallet repair according to claim 1 or 2.   The pallet repair device according to claim 3, wherein a thickness of the claw member to which the push rod is attached in the rotation direction is larger than a thickness of the other portion. 2. The holding member can be driven in a direction in which the mounting surface and the pressing surface face each other, and presses a board adjacent to an edge board to be removed by the driving to press the pallet. The apparatus for pallet repair as described in any one of -4.

Images