JP2006232233A - Protection plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protection plate of a wooden cargo bed for a carrying vehicle capable of enhancing the durability of the cargo bed, and suppressing any increase in the weight of the entire cargo bed, and easily mounted on a floor plate. <P>SOLUTION: The protection plate 14 has a plate body 15 fixed to a surface of a floor plate, a plurality of through-holes 16 formed in the plate body 15 in a distributed manner on a front surface of a plate body 15 to absorb the deformation in the direction along the surface caused by the cargo load applied on the surface of the plate body 15, and a plurality of biting teeth 17 which are provided in a distributed manner on a back side of the plate body 15, protruded from the back side to be bitten in a wooden floor plate to fix the plate body 15 to the floor plate. Even when the cargo load is applied to the plate body, and a part of the protection plate is subjected to plastic deformation and displaced in the surface direction, the displaced portion is not raised in a ridge, and any space is hardly formed from the floor plate. Thus, the protection plate can be used in a flat state over a long time. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a protective plate for a wooden carrier for a transportation vehicle that protects a wooden floor board of the transportation vehicle from a load.

  The loading platform of trucks and other transport vehicles is made of metal molds and is made of wood, such as Apiton, which is the main tree of tropical forests, based on a combination of vertical and horizontal aggregates called horizontal joists. It is formed by attaching a plurality of floor boards formed with the main raw material with screws or the like. The floor plates are connected to each other by fitting a concave end surface and a convex end surface formed on the side surfaces of the floor plates to each other.

  In the case of a transportation vehicle having a wooden floor board, the floor board may be worn away due to vibration during the transportation of the luggage or loading and unloading work of the luggage. Therefore, a plurality of striped plates are welded in accordance with the size of the loading platform to form a single protective plate, which is adhered to the floor plate using an adhesive, and the durability of the loading platform may be improved.

  Cargo carts that can carry multiple small packages at the same time may be carried into the carrier platform, but the number of cart carts that can be carried into the carrier platform is limited by the size of the cart Therefore, each cart is sequentially carried into a predetermined position along a predetermined loading / unloading route. Therefore, even if the floor plate is attached with a protective plate, if the carriage is transported over a long period of time, the traces of the wheels of the cart where the load is concentrated will follow the carry-in / carry-out path of the cart. There was a rut, and the part corresponding to both sides of the rudder sometimes became a mountain and was raised greatly. This is presumably because the protective plate is plastically deformed so that the rudder portion becomes thin, and is displaced to both sides of the rudder, peeled off from the floor plate, and bent to form a raised portion. If a raised portion is formed on the protective plate on which the load is loaded, the loading / unloading operation of the load is hindered and the load cannot be stably loaded, and the wear of the protective plate mainly on the raised portion of the protective plate Becomes easier to progress.

  In addition, if a wooden plate is protected by attaching a steel plate protection plate to the entire surface of the floor plate as in the prior art, the weight of the entire cargo bed is increased.

  An object of the present invention is to provide a protective plate for a wooden loading platform for a transportation vehicle that can improve the durability of the loading platform, can suppress an increase in the weight of the entire loading platform, and can be easily attached to a floor plate. It is in.

  The protective plate of the present invention is a protective plate for a wooden carrier for a transport vehicle that protects a wooden floor plate of a transport vehicle, the plate main body being fixed to the surface of the floor plate, and the plate main body on the entire surface of the plate main body. A plurality of through-holes formed in a dispersed manner, and a plurality of biting teeth protruding from the back surface of the plate body so as to protrude from the back surface and biting into the floor plate and fixing the plate body to the floor plate. Features.

  In the protection plate of the present invention, each of the through holes is a long hole, and when the long hole is formed, the biting teeth starting from the end of the through hole are formed by a portion corresponding to the long hole. It is characterized by that.

  The protective plate of the present invention is a twist for capturing a part of the floor plate plastically deformed by biting the biting tooth into the floor plate by twisting the biting tooth from the starting point of the biting tooth toward the tip. A portion is formed on the biting tooth.

  The protective plate according to the present invention transports a load and moves in the front-rear direction of the transport vehicle, and is loaded into the loading platform and carried out from the loading platform along a loading / unloading path of a cart, and the plate body is provided with a plurality of plate bodies. It is characterized by being fixed to.

  According to the present invention, the plurality of through holes formed on the entire surface of the plate body absorb the deformation of the plate body in the direction along the surface due to the load applied to the surface of the plate body, that is, the surface direction. The plurality of biting teeth formed on the back surface can bite into the floor board and fix the plate body to the floor board at a plurality of locations. As a result, even if a load is applied to the plate body and a part of the protective plate is plastically deformed and displaced in the surface direction, the displaced portion does not rise in a mountain shape and the gap between the floor plate and Since it is difficult to form, the protective plate can be used in a flat state for a long period of time. Since the raised portion that causes wear of the protective plate is not formed, the durability of the loading platform is improved.

  According to the present invention, when the through hole is formed, the biting tooth starting from the end of the through hole can be formed by the portion corresponding to the through hole, so that the processing efficiency is good and the material is not wasted. By pressing the entire surface of the protective plate using a press machine and biting teeth into the floor plate, the protective plate can be fixed to the floor plate, and there is no need to apply adhesive as in the prior art, Installation work is easy.

  According to the present invention, the twisted portion formed by twisting the biting tooth from the starting point of the biting tooth toward the tip portion captures a part of the floor plate that is plastically deformed when the biting tooth is bitten into the floor plate. The protective plate can be firmly fixed.

  According to the present invention, the protective plate can be attached only to a portion where the load of the load is concentrated. For example, the carry-in / out route of the cart that carries the load and moves in the front-rear direction of the carrying vehicle and is carried into and out of the loading platform. A plurality of protective plates can be fixed to the floor plate along the line, thereby suppressing an increase in the weight of the entire loading platform while ensuring the required durability. Even when a protective plate is attached to the entire surface of the floor plate as in the prior art, the weight can be reduced by reducing the thickness of the protective plate by an amount corresponding to the improved durability.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a van body vehicle as an example of a transport vehicle, and FIG. 2 is a longitudinal sectional view in a direction along the line AA in FIG. A container 1 is mounted on the van body vehicle. The container 1 has a loading platform 2 on which loads are loaded, a front wall 3 disposed at the front end of the loading platform 2, and a rear end of the loading platform 2 with a hinge at the center. A rear wall 5 having a pair of doors 4 that can be opened and closed in a double door manner, left and right side walls 6, 7 and a ceiling wall 8 integrated with these walls 3, 5-7, the interior of which is a cargo It is chamber 9. Not only can the cargo be loaded directly into the cargo compartment 9, but also a cart that can transport and store a plurality of packages can be carried in.

  The loading platform 2 has a base 12 in which a plurality of vertical joists 10 extending in the front-rear direction of the vehicle and a plurality of horizontal joists 11 assembled on the vertical joists 10 and extending in the vehicle width direction are combined in a blistered state. The floor board 13 made of a wooden board is attached by using a flat tapping screw. The vertical joists 10 and the horizontal joists 11 are formed of an iron channel material having a U-shaped cross section, and the floor board 13 is formed of Apton, which is a main tree of a tropical forest, and the floor boards 13 are formed on the side surfaces of the floor boards. The formed concave end surface 13a and convex end surface 13b are connected to each other by being fitted to each other (see FIG. 5 described later). The floor board 13 is not limited to Apton, and may be formed using other trees as long as it is wood, or plywood may be used.

  On the surface of the floor plate 13, a protection plate 14 for a carrier for a transportation vehicle according to an embodiment of the present invention is attached. On the other hand, an underpan (not shown) made of a metal sheet such as aluminum or a resin sheet such as FRP is affixed to the back surface of the floor board 13, and the water resistance of the floor board 13 is secured by this underpan. Yes.

  FIG. 3 is an enlarged perspective view showing the protective plate of the carrier for a transportation vehicle according to one embodiment of the present invention from the front side, and FIG. 4 is an enlarged perspective view showing the protective plate shown in FIG. 3 from the back side. The protective plate 14 is a thin plate made of a steel plate having a thickness of about 1 mm, for example, and has a plate body 15 fixed to the surface of the floor plate 13. The plate body 15 is dispersed on the entire surface of the plate body 15. A plurality of through-holes 16 are formed, and each of the through-holes 16 has a property of absorbing the deformation of the plate body 15 in the direction along the surface due to the load applied to the surface of the plate body 15, that is, the surface direction. By forming a plurality of through holes 16 dispersed over the entire surface of the plate main body 15, even if a load is applied to the plate main body 15 and a part of the protective plate 14 is displaced in the surface direction, the through holes 16 in the vicinity. The deformation can be absorbed.

  These through holes 16 are formed by pressing a predetermined processing tool mounted on a press machine onto the surface of the plate body 15. In the illustrated case, the through-holes 16 are arranged in a staggered pattern with 8 rows and 32 columns, but the number and arrangement of the through-holes 16 can be arbitrarily set. The shape and size can be arbitrarily set and can be different from each other.

  A plurality of biting teeth 17 protruding from the back surface are provided on the back surface of the plate body 15 in a distributed manner. Each of the biting teeth 17 shown in the figure starts from the end of the through-hole 16, and when the through-hole 16 is formed by press working, a portion punched out by a processing tool, that is, a portion corresponding to the through-hole 16 is formed. It can be formed by protruding to the back side of the plate body 15, and the processing efficiency is good and the material is not wasted. The leading end surface of each biting tooth 17 is a sharp cut surface, and the base end portion of the biting tooth 17 is integrated with the end portion of the through hole 16, and the biting tooth is inserted into the wooden floor material constituting the floor board 13. 17 is driven into the floor plate 13 from the cut surface side of the bite teeth 17 so that the protective plate 14 is fixed to the floor plate 13.

  In the present embodiment, each through-hole 16 is a long hole formed such that each major axis direction faces the same direction, and each end of the through-hole 16 in the major axis direction has a biting tooth 17. The base end portion is provided integrally with the plate body 15, and two biting teeth 17 are formed for one through hole 16. When the through hole 16 is a long hole, the deformation of the protective plate 14 generated in the short diameter direction of the long hole is likely to be absorbed. In addition, in the present embodiment, each biting tooth 17 is plasticized by being bitten into the floor plate 13 by being twisted from the starting point of the biting tooth 17, that is, from the base end portion toward the tip end portion. A twist portion 17 a that captures a part of the deformed wood fiber is formed, and the biting teeth 17 are difficult to come off from the floor plate 13, so that the protective plate 14 can be firmly fixed to the floor plate 13. One through hole 16 may be provided with one or more biting teeth, and a cylindrical biting tooth is provided so as to surround the through hole 16 along the edge of the through hole 16. May be.

  FIG. 5 is an enlarged perspective view showing an example of a state in which the protection plate shown in FIGS. 3 and 4 is attached to the floor board. The floor plates 13 are connected to each other by fitting a concave end surface 13 a and a convex end surface 13 b formed on the side surfaces of the floor plate 13 to each other, thereby forming a bottom surface of the cargo compartment 9.

  When the protective plate 14 is attached to the floor plate 13, the protective plate 14 is disposed on the floor plate 13 so that the back surface on which the bite teeth 17 are formed faces the floor plate 13, and then the protective plate 14 is placed on the floor plate 13 using a press. The entire surface is pressed and each biting tooth 17 is driven into the floor board 13. At this time, since the twisted portion 17a formed on each biting tooth 17 captures a part of the wood fiber of the floor board 13, it cannot be easily removed, that is, it can be firmly fixed. Since it is not necessary to use an adhesive as in the prior art, the attachment work is easy, and the durability of the loading platform 2 can be improved by attaching the protective plate 14 to the floor plate 13. Note that the floor plate 13 may be attached to the base 12 after the protective plate 14 is attached to the floor plate 13, or the protective plate 14 may be attached to the floor plate 13 after the floor plate 13 is attached to the base 12. good.

  The plate body 15 is firmly fixed to the floor plate 13 at a plurality of locations by a plurality of biting teeth 17, so that the plate body 15 is not easily deformed as a whole, and the plurality of through holes 16 formed in the plate body 15 are formed by the plate body 15. 15 has a property of absorbing deformation in the direction along the surface, that is, in the plane direction, so that even if the protective plate 14 and the floor plate 13 are deformed in the direction along the surface, a part of the protective plate 14 is raised in a mountain shape. In other words, the protective plate 14 can be used in a flat state for a long period of time because a gap is not easily formed between the protective plate 14 and the floor plate 13. Since the raised portion that causes the wear of the protective plate 14 to progress is not formed, the durability of the loading platform 2 is improved, and the raised portion can stably load the load without hindering the loading / unloading operation of the load.

  A cart 18 that can transport and store a plurality of small packages can be carried into the loading platform 2 of the transport vehicle. In the case shown in FIG. 5, the car cart 18 includes a rectangular bottom plate 20 to which wheels 19 are attached, and a lattice frame 22 on the back side that is attached at right angles to the bottom plate 20 and defines a luggage storage chamber 21. And lattice frames 23a and 23b on the side surfaces, and the opposite side of the lattice frame 22 is opened to serve as a luggage storage port.

  Since the number of car carts 18 that can be carried into the loading platform 2 of the transport vehicle is limited by the size thereof, each car cart 18 is sequentially carried into a predetermined loading position along a predetermined loading path. . In this case, the protective plate may be attached only to the portion to which the load is applied, that is, the carry-in / carry-out route of the cart 18 and the installation position at the time of transportation. In the case shown in FIG. The protective plate 14 and a protective plate 14a having a smaller width than this are attached, so that an increase in the weight of the entire carrier is suppressed as compared with the case where the protective plate 14 is attached to the entire carrier.

  Even if the rubbing traces of the wheels generated by the movement of the car cart 18 are formed on the protective plates 14 and 14a along the predetermined loading / unloading path, the plate body 15 is formed at a plurality of positions by the plurality of biting teeth 17. Since the plate body 15 is firmly fixed to the floor plate 13 and hardly deforms as a whole, and the through hole 16 has a property of absorbing deformation in the surface direction, both sides of the rut may be raised in a mountain shape. The deformation of the entire plate body 15 is suppressed. In particular, as shown in FIG. 5, the protection plates 14 and 14 a are protected by attaching the protection plates 14 and 14 a so that the major axis direction of the through hole 16 and the movement direction of the cart 18 moved along a predetermined loading / unloading path are matched. Even if displacement occurs on both sides of the plate due to plastic deformation so that the plate portions of the plates 14 and 14a become thin, the displacement can be effectively absorbed.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, the present invention can also be applied to other transport vehicles such as a covered car, a wing car, and a trailer.

It is a perspective view which shows the van body vehicle as an example of a transport vehicle. It is a longitudinal cross-sectional view of the direction in alignment with the AA of FIG. It is an expansion perspective view which shows the protection plate of the carrier for carrier vehicles which is one embodiment of this invention from the surface side. It is an expansion perspective view which shows the protection plate shown in FIG. 3 from the back side. It is an expansion perspective view which shows an example of the state which attached the protection plate to the floor board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 2 Loading platform 3 Front wall 4 Door 5 Rear wall 6,7 Side wall 8 Ceiling wall 9 Cargo compartment 10 Vertical joist 11 Horizontal joist 12 Base 13 Floor board 13a Concave end surface 13b Convex end surface 14 Protective plate 14a Protective plate 15 Plate Body 16 Through-hole 17 Biting tooth 17a Twist part 18 Basket carriage 19 Wheel 20 Bottom plate 21 Storage chamber 22 Grid frames 23a, 23b Grid frame

Claims (4)

A protection plate for a wooden carrier for a transportation vehicle that protects the wooden floor of the transportation vehicle,
A plate body fixed to the surface of the floor plate;
A plurality of through holes formed in the plate body to be dispersed over the entire surface of the plate body;
A protective plate having a plurality of dispersed projections protruding from the back surface of the plate body, and having bite teeth that bite into the floor plate and fix the plate body to the floor plate.   2. The protective plate according to claim 1, wherein each of the through holes is a long hole, and when the long hole is formed, the biting teeth starting from an end of the through hole are formed by a portion corresponding to the long hole. A protective plate characterized by being formed.   3. The protection plate according to claim 1, wherein a part of the floor plate plastically deformed by biting the biting tooth into the floor plate by twisting the biting tooth from the starting point of the biting tooth toward the tip portion. The protective plate is characterized in that a twisted portion for catching the dent is formed on the biting tooth.   The protection plate according to any one of claims 1 to 3, wherein the cargo is transported and moved in the front-rear direction of the transport vehicle, and is carried into the loading platform and carried out from the loading platform to a loading / unloading path of the cart. A plurality of the plate main bodies are fixed to the floor plate along the protection plate.

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