JP5337682B2 - Floor structure of carrier platform - Google Patents

Description

  The present invention relates to a floor structure of a carrier bed for a transport vehicle, which is formed by arranging a plurality of floor members made of an aluminum profile in the vehicle width direction.

  A transport vehicle such as a trailer or a truck has a vertical joist extending in the vehicle front-rear direction and a plurality of horizontal joists extending in the vehicle width direction and fixed to the vertical joist at predetermined intervals in the vehicle front-rear direction. A loading platform for loading luggage is provided on Yokojina. Conventionally, the floor structure of a carrier bed has been formed by fixing a flooring made of Apiton material on the side joist, but by using an aluminum profile as the flooring, weight reduction and corrosion resistance can be achieved. For example, Patent Document 1 discloses a floor structure of a carrier platform for transportation vehicles that is intended to be improved.

  The floor structure of the carrier for a carrier vehicle has a plurality of floors made of an aluminum shape, in which a floor plate part forming the floor surface of the carrier bed and a plurality of support legs extending downward from the floor plate part are integrally formed by extrusion molding. The cargo bed is formed by arranging a plurality of flooring materials in the vehicle width direction and arranging them on the horizontal joists and assembling adjacent flooring materials to each other. Adhesives made of rubber or synthetic resin are attached to the connecting parts of adjacent flooring materials to prevent foreign materials, rainwater, etc. from entering the floor of the cargo bed from the bottom of the vehicle through the gaps of the connecting parts. Has been.

  However, as described in Patent Document 1, when a sealing material is attached to the connecting portion of the flooring, the flooring is mutually attached in a state where the sealing material is attached to the connecting portion along the longitudinal direction of the flooring. It is necessary to assemble, and the work of forming the loading platform becomes complicated. Further, since the sealing material is pressure-bonded by the floor materials adjacent to each other, the sealing material may leak onto the floor surface of the cargo bed, and the aesthetics of the cargo bed may be impaired. Therefore, for example, as described in Patent Document 2, a waterproof undersheet (underpan) is provided between the side joists and the flooring material, and foreign matter, rainwater, etc. enter the floor of the cargo bed from below the vehicle. There is a floor structure of a carrier bed for carrying vehicles that is prevented from doing so. In this floor structure of the loading platform, undersheets are spread over a plurality of horizontal joists and the flooring is assembled on the undersheet, so the work of forming the loading platform is easy and the sealing material is the floor surface of the loading platform. There is no risk of leaking upward, and the aesthetics of the loading platform can be maintained.

JP 2000-108952 A JP 2004-155370 A

  By the way, in the case of the truck described in Patent Document 2, the horizontal joists are fixed on the vertical joists, and the upper surface of the horizontal joists on which the loading platform is provided are formed continuously in the vehicle width direction. Therefore, in the floor structure of this truck bed, it is possible to spread one under sheet between the side joist and the floor material over the whole bed. Both side portions of the under seat in the vehicle width direction are stacked on the upper surfaces of a pair of side rails extending in the vehicle front-rear direction, and are supported by the side rails over the entire vehicle front-rear direction. Thereby, both sides of the undersheet do not bend, and water can be reliably prevented from rising onto the floor surface of the loading platform.

  On the other hand, in the case of trailers and some trucks, the vertical joists are fixed in a state of projecting upward from the upper surface of the horizontal joists, and the upper surface of the horizontal joists on which the loading platform is provided are arranged in the vehicle width direction by the vertical joists. It is partitioned. Therefore, in these floor structures of the carrier platform, it is impossible to lay one undersheet between the horizontal joists and the flooring throughout the entire carrier, and a plurality of divisions corresponding to the vertical joists It is necessary to spread undersheets between the floor joists and the floor joists. In that case, the side portion of the undersheet on the vertical joist side is stacked on the upper surfaces of a plurality of horizontal joists arranged at predetermined intervals in the vehicle longitudinal direction, and is not supported between the horizontal joists. It becomes a state. Therefore, there is a possibility that the side portion of the undersheet on the vertical joist side will bend between the horizontal joists, and it is not possible to reliably prevent foreign matter, rainwater, etc. from entering the floor surface of the loading platform from below the vehicle. .

  An object of the present invention is to reliably prevent water from rising onto the floor surface.

  Another object of the present invention is to improve the assemblability of the floor structure.

  The floor structure of the carrier for a transport vehicle according to the present invention includes a floor plate portion that forms a floor surface and a plurality of support legs that are formed integrally with the floor plate portion and extend downward, and each of the plurality of connection floors is made of an aluminum profile. A plurality of connecting floor materials arranged in the vehicle width direction on both sides of the covering floor material that is mounted so as to cover the vertical joists protruding from the upper surface of the horizontal joists. A floor structure of a carrier platform for a transport vehicle that is arranged to form a loading platform, the connection being provided on both sides of a floor plate portion of the coated floor covering the upper surface of the vertical joists and adjacent to both sides of the coated flooring A pair of engaging portions respectively engaged with the floor material and a pair of supporting leg portions provided on both sides of the covering floor material extend from the lower ends of the supporting leg portions to the side away from each other, and are laminated on the upper surface of the horizontal joist A pair of horizontal wall portions and at least one side portion of the horizontal wall portion A waterproof sheet laminated on a surface and spread between the horizontal joists and the plurality of connecting floor materials, and a fastening member for fastening the horizontal wall portion, the waterproof sheet, and the horizontal joists together. And

  In the floor structure of the carrier for a transport vehicle according to the present invention, the pair of engaging portions are engaging grooves into which engaging protrusions provided on the adjacent connecting floor members are engaged.

  The floor structure of a carrier for a transport vehicle according to the present invention is characterized in that a gap adjusting material is sandwiched between a floor plate portion of the covering floor material and an upper surface of the vertical joist.

  According to the present invention, the covering flooring is mounted so as to cover the vertical joists protruding from the upper surface of the horizontal joists, and the side portions of the waterproof sheet are laminated on the upper surface of the horizontal wall portion of the covering flooring. The side portion of the waterproof sheet is supported by the horizontal wall portion of the covering floor material over the entire vehicle longitudinal direction. As a result, the side portion of the waterproof sheet is bent, so that a gap is not generated between the waterproof sheet and the chassis frame, and water can be reliably prevented from rising onto the floor surface of the loading platform. Moreover, since it was set as the hat-type covering floor material provided with a pair of horizontal wall parts arrange | positioned at the vehicle width direction both sides of a vertical joist, the side part of a pair of waterproof sheet arrange | positioned at the vehicle width direction both sides of a vertical joist Can be supported by one coated flooring. Accordingly, the floor structure of the cargo bed is simplified and the assembly workability of the floor structure is improved as compared with the case where the pair of profiles supporting the side portions of the waterproof sheet are respectively disposed on both sides of the longitudinal joists in the vehicle width direction. be able to.

It is a perspective view of a wing type trailer. (A), (B) is sectional drawing which shows the left side part and right side part of the loading platform floor which are one embodiment of this invention, respectively. It is sectional drawing which expands and partially shows the loading platform floor shown to FIG. 2 (A). (A)-(C) are sectional drawings which each show the floor material which forms a loading platform floor. (A)-(C) is an expanded sectional view which shows the side part of an underpan, respectively. It is explanatory drawing which shows the assembly | attachment state of the side part of an underpan. FIG. 7 is an exploded perspective view of FIG. 6.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The trailer 10 is a wing type trailer having a loading platform 11 for loading a load, and travels by a traveling wheel 12 to carry the load. The trailer 10 has a chassis frame 13 to which traveling wheels 12 are mounted, and a tractor 14 for pulling the trailer 10 is connected to the front of the chassis frame 13 extending in the vehicle front-rear direction.

  The chassis frame 13 includes a pair of vertical joists (main rails) 15 extending in the vehicle front-rear direction and a plurality of horizontal joists (cross members) 16 extending in the vehicle width direction. A pair of vertical joists 15 are fixed to each other at a predetermined interval in the direction. As shown in FIGS. 2 (A) and 2 (B), the vertical joist 15 includes a top wall 15a and a bottom wall 15b extending in the horizontal direction, and a connecting wall that extends in the vertical direction and connects the top wall 15a and the bottom wall 15b. 15c, and a horizontal joist 16 made of a steel material having a U-shaped cross section in a plurality of through holes 15d formed in the connecting wall 15c at predetermined intervals in the vehicle front-rear direction. Are respectively inserted and fixed. That is, the vertical joist 15 is fixed in a state in which the upper surface wall 15 a is disposed above the horizontal joist 16 and a part of the vertical joist 15 protrudes above the upper surface of the horizontal joist 16. Further, side rails 17 extending in the vehicle front-rear direction are provided at both ends of the chassis frame 13 in the vehicle width direction. The side rail 17 is a steel material having a substantially U-shaped cross section having an upper surface wall 17 a laminated on the upper surface of the horizontal joist 16, and both end portions of each horizontal joist 16 are fixed to the side rail 17. A loading platform 11 is formed on the horizontal joists 16 of the chassis frame 13.

  The loading platform 11 has a box shape extending in the front-rear direction of the vehicle, and a rear door 11 is provided on the rear wall 11a so as to be openable and closable. In addition, on the left and right sides of the loading platform floor 19 of the loading platform 11, a cover plate 20 is attached to the side rail 17 so as to be freely opened and closed. . Each wing 21 has a side wall portion 21a and a top wall portion 21b integrated therewith, and these are bent at right angles to each other. In order to open and close the wings 21, piston rods of hydraulic cylinders (not shown) are connected to the wings 21, respectively. The cargo transported by the trailer 10 is carried into the loading platform 11 from the side of the vehicle with the wing 21 and the cover plate 20 opened, or the loading platform from the rear of the vehicle with the back door 18 opened. 11 and loaded on the loading platform floor 19.

  Each of the cargo bed floors 19 has a plurality of connecting floor materials 23 and a pair of covering floor materials 24 as floor materials made of aluminum. The pair of covering floor materials 24 are respectively mounted so as to cover the vertical joists 15 projecting from the upper surface of the horizontal joists 16, and a plurality of connecting floor materials 23 are arranged on both sides of the covering floor materials 24 in the vehicle width direction. 16 is disposed on the floor 16 to form a cargo bed floor 19. Each floor material is an aluminum shape member in which a horizontal plate-like floor plate portion 25 that forms the floor surface of the cargo bed floor 19 and a plurality of support legs 26 extending downward from the floor plate portion 25 are integrally formed by extrusion molding. And the longitudinal direction, that is, the extrusion direction is arranged in the vehicle front-rear direction.

  As shown in FIG. 3, a plurality of substantially semicircular ridges 27 and 28 extending in the longitudinal direction of the flooring are appropriately provided on the upper and lower surfaces of the floor plate portion 25, and the floor surface of the cargo bed floor 19 is The plurality of protrusions 27 provided on the upper surface of the floor plate portion 25 of each floor material are uneven in the vehicle width direction. As a result, when the load is moved in the vehicle longitudinal direction on the load carrier floor 19, the load becomes easy to slide on the floor surface of the load carrier floor 19, and the floor surface of the load carrier floor 19 is uneven in the vehicle width direction. For this reason, when an operator works on the loading platform floor 19, the operator is prevented from slipping and falling on the floor surface of the loading platform floor 19.

  The plurality of support legs 26 of each floor material are formed to extend in the longitudinal direction of the floor material at predetermined intervals in the vehicle width direction, and at the lower end of each support leg 26 in the vehicle width direction. A protruding seat 29 is provided. The seating portions 29 of the respective support legs 26 are formed in parallel to the floor plate portion 25 at a predetermined interval in the vertical direction, and the covering flooring 24 has the seating portions 29 that contact the upper surface of the horizontal joists 16. It is supported on the horizontal joist 16 by being in contact. On the other hand, the connecting flooring 23 is configured such that each seat 29 is brought into contact with the upper surface of the horizontal joist 16 through the underpans 30 and 31 as waterproof sheets spread on the horizontal joist 16. Supported on top.

  4 (A) to 4 (C) are cross-sectional views showing floor materials forming the cargo bed floor. As shown in FIG. 4A, the covering floor material 24 includes a floor plate portion 25 that covers the upper surface wall 15 a of the vertical joist 15, and a pair of support leg portions 26 that extend downward from both side portions of the floor plate portion 25. It is the shape of the mold. Engaging grooves (engaging portions) 32 that open to the outside of the covering floor material 24 are formed on both sides of the floor plate portion 25 of the covering floor material 24, and each engaging groove 32 is formed on the covering floor material 24. It has an arc shape that curves upward as it goes inward. The pair of support legs 26 disposed on both sides of the vertical joists 15 have a horizontal wall portion 33 extending integrally from the lower end toward the outside of the covering floor material 24 toward the outside of the covering floor material 24. Is provided. Each horizontal wall portion 33 is abutted against the horizontal joist 16 and laminated on the upper surface of the horizontal joist 16, and the pair of horizontal wall portions 33 are fastened to the horizontal joist 16 by a tapping screw 34 as a fastening member. The covering flooring 24 is fixed to the horizontal joists 16 so as to cover the vertical joists 15. As shown in FIG. 3, a gap adjusting material 35 made of tape or the like is sandwiched between the floor plate portion 25 of the covering floor material 24 and the upper surface wall 15 a of the vertical joist 15. The portion 25 is abutted against the upper surface wall 15 a of the vertical joist 15 via the gap adjusting material 35.

  The plurality of connecting floor materials 23 arranged side by side on both sides of the covering floor material 24 include various types having different shapes depending on the use and assembly position, and the vehicle width direction outer side of the pair of covering floor materials 24. A pair of outer floor material groups 38 arranged respectively in the above are formed by the connecting floor materials 23a to 23c. FIG. 4B shows a connecting floor material 23 a disposed adjacent to the outer side of the covering floor material 24 in the vehicle width direction. An engagement groove 39 that opens to the outside of the connection floor material 23a is formed on one side of the floor plate portion 25 of the connection floor material 23a, and a connection floor material is formed on the other side of the floor plate portion 25 of the connection floor material 23a. Engagement projections 40 are provided to project outward from 23a. The engagement groove 39 has an arc shape that curves upward as it goes inward of the connecting floor material 23 a, and has the same shape as the engagement groove 32 of the covering floor material 24. The engagement protrusion 40 has an arc shape that curves upward as it goes to the outside of the connecting floor material 23 a, and has a shape that can be engaged with the engagement groove 32 of the covering floor material 24.

  The support leg portion 26 provided on one side of the connecting floor material 23a is provided with a horizontal wall portion 41 extending from the lower end thereof toward the outside of the connecting floor material 23a so as to be integrated with the seating portion 29. The portion 41 is abutted against the upper surface of the lateral joist 16 through the underpan 30. The connecting floor material 23a is disposed adjacent to the outer side in the vehicle width direction of the covering floor material 24, engages the engaging protrusion 40 of the connecting floor material 23a and the engaging groove 32 of the covering floor material 24, and also has a horizontal wall portion. 41 is fastened to the horizontal joist 16 by fastening it with the tapping screw 34. The tapping screw 34 for fastening the horizontal wall portion 32 on the outer side in the vehicle width direction of the covering flooring 24 is covered with the connecting flooring 23a.

  Similarly, the connecting floor material 23b is disposed adjacent to the outer side in the vehicle width direction of the connecting floor material 23a, engages the engaging protrusion of the connecting floor material 23b and the engaging groove 39 of the connecting floor material 23a, and connects the connecting floor material 23b. The horizontal wall portion of the flooring 23 b is fixed to the horizontal joist 16 by fastening it to the horizontal joist 16 with a tapping screw 34. The connecting floor material 23c is disposed adjacent to the outer side in the vehicle width direction of the connecting floor material 23b, engages the engaging protrusion of the connecting floor material 23c and the engaging groove of the connecting floor material 23b, and connects the connecting floor material 23c. 23 c is fixed to the lateral joist 16 by fastening to the lateral joist 16 and the side rail 17 by the tapping screw 34. In this way, the outer floor material group 38 is formed by assembling the connecting floor materials 23a to 23c sequentially to the outer side of the covering floor material 24 in the vehicle width direction.

  On the other hand, the inner floor material group 42 disposed on the inner side in the vehicle width direction of the pair of covering floor materials 24 is formed by the connecting floor materials 23d to 23f, respectively. FIG. 4C shows a connecting floor material 23d disposed adjacent to the inner side of the covering floor material 24 in the vehicle width direction. An engagement groove 39 that opens to the outside of the connection floor material 23d is formed on one side of the floor plate portion 25 of the connection floor material 23d, and a connection floor material is formed on the other side of the floor plate portion 25 of the connection floor material 23d. Engaging protrusions 40 that protrude outward from 23d are provided. In addition, the support leg 26 provided on one side of the connecting floor 23d is provided with a horizontal wall 41 extending integrally from the lower end thereof toward the outside of the connecting floor 23d integrally with the seat 29. The horizontal wall portion 41 is abutted against the upper surface of the lateral joist 16 through the underpan 31. The connecting floor material 23d is disposed adjacent to the inner side in the vehicle width direction of the covering floor material 24, engages the engaging protrusion 40 of the connecting floor material 23d and the engaging groove 32 of the covering floor material 24, and also has a horizontal wall portion. 41 is fastened to the horizontal joist 16 by fastening it with the tapping screw 34. The tapping screw 34 that fastens the horizontal wall portion 32 on the inner side in the vehicle width direction of the covering flooring 24 is covered with the connecting flooring 23d.

  Similarly, the connecting floor material 23e is disposed adjacent to the inner side in the vehicle width direction of the connecting floor material 23d, and engages the engaging protrusion of the connecting floor material 23e with the engaging groove 39 of the connecting floor material 23d. The horizontal wall portion of the flooring 23e is fixed to the horizontal joist 16 by fastening it to the horizontal joist 16 with a tapping screw 34. The connecting floor material 23f is disposed adjacent to the inner side in the vehicle width direction of the pair of connecting floor materials 23e, and is fixed to the connecting floor material 23e by fastening the pair of connecting floor materials 23e with the blind rivets 45, respectively. . In this manner, the inner floor material group 42 is formed by assembling the connecting floor materials 23d to 23f in order in the vehicle width direction inner side of the covering floor material 24.

  It should be noted that the number and shape of the connecting floor materials 23 forming the floor material groups 36 and 42 can be variously changed, and an arbitrary cargo bed floor 19 depending on the width dimension of the cargo bed floor 19 and the presence / absence of installation of a floor transfer device. Can be formed. For example, in the present embodiment, the connecting floor materials 23b and 23d are used as air roll mounting floor materials for mounting the air roll 43 as a floor conveying device, and the air rolls mounted on the connecting floor materials 23b and 23d, respectively. 43, the cargo can be smoothly moved on the loading bed floor 19. However, when the air roll 43 is not installed on the loading bed floor 19, the connecting floor materials 23b and 23d are connected to other shapes of the connecting floor materials 23. Will be changed respectively.

  In order to prevent foreign matter, rainwater and the like from entering the floor surface of the cargo bed 19 from below the vehicle, underpans 30 and 31 made of a resin sheet are provided between the lateral joists 16 and the connecting floor material 23. Is provided. The underpans 30 and 31 are divided into three parts corresponding to the pair of vertical joists 15, and the pair of underpans 30 are respectively arranged on the outer sides in the vehicle width direction of the pair of vertical joists 15. The pair of vertical joists 15 are arranged on the inner side in the vehicle width direction.

  Next, the assembly structure of the underpans 30 and 31 will be described. FIGS. 5A to 5C are enlarged sectional views showing the side portions of the underpan, FIG. 6 is an explanatory view showing the assembled state of the side portions of the underpan, and FIG. It is a disassembled perspective view. 6 and 7, the protrusions 27 formed on the covering floor material 24 are omitted.

  The underpans 30 respectively disposed on the outside in the vehicle width direction of the pair of vertical joists 15 are between the horizontal joists 16 and the connecting floor material 23 of the outer floor material group 38, that is, between the covering floor material 24 and the side rails 17. Is spread on the side joist 16. As shown in FIG. 5A, the side part 30 a on the outer side in the vehicle width direction of the underpan 30 is laminated on the upper surface of the upper surface wall 17 a of the side rail 17. And by the tapping screw 34 for fastening the connection floor material 23c as the outermost floor material respectively arranged on both sides of the cargo bed floor 19 to the lateral joists 16, the connection floor material 23c and the side portion 30a of the under pan 30 The upper surface wall 17 a of the side rail 17 and the lateral joist 16 are fastened together, and the side portion 30 a of the underpan 30 is fixed to the lateral joist 16. The upper surface wall 17a of the side rail 17 on which the side portion 30a of the underpan 30 is stacked is formed to extend in the vehicle front-rear direction, and the side portion 30a of the underpan 30 is the side of the entire cargo front floor 19 in the vehicle front-rear direction. The rail 17 is supported by the upper surface wall 17a.

  In addition, a spacer 44 made of wood is provided between the connecting floor material 23 c and the side portion 30 a of the underpan 30, and the tapping screw 34 is fastened via the spacer 44, whereby the tapping screw 34. The fastening force is improved, and the tapping screw 34 is prevented from loosening. The spacer 44 is not limited to wood, and may be formed of, for example, a resin material.

  As shown in FIG. 5 (B), the inner side in the vehicle width direction of the underpan 30, that is, the side portion 30 b on the vertical joist 15 side is laminated on the upper surface of the horizontal wall portion 33 on the outer side in the vehicle width direction of the covering flooring 24. Yes. And the side part 30b of the underpan 30, the horizontal wall part 33 of the covering flooring 24, and the horizontal joist 16 are fastened together by a tapping screw 34 for fastening the covering flooring 24 to the horizontal joist 16. 30 side portions 30 b are fixed to the lateral joists 16. As shown in FIGS. 6 and 7, the horizontal wall portion 33 of the covering floor material 24 on which the side portion 30 b of the underpan 30 is stacked is formed so as to extend in the vehicle front-rear direction. 30 b is supported by the horizontal wall 33 of the covering floor material 24 over the entire vehicle longitudinal direction of the loading platform floor 19.

  Further, the under pan 31 disposed on the inner side in the vehicle width direction of the pair of vertical joists 15 is between the horizontal joists 16 and the connecting floor material 23 of the inner floor material group 42, that is, between the pair of covering floor materials 24. It is spread on Yokoneta 16. As shown in FIG. 5C, the side portions 31a on both sides in the vehicle width direction of the underpan 31 are respectively stacked on the upper surface of the horizontal wall portion 33 on the inner side in the vehicle width direction of the pair of covering floor materials 24. Then, similarly to the side portion 30 b of the underpan 30, the side wall portion 31 a of the underpan 31 and the horizontal wall portion 33 of the covering floor material 24 are provided by a tapping screw 34 for fastening the covering floor material 24 to the lateral joists 16. And the side joist 16 are fastened together, and the side portion 31 a of the under pan 31 is fixed to the side joist 16. As shown in FIGS. 6 and 7, the horizontal wall portion 33 of the covering floor material 24 on which the side portion 31 a of the underpan 31 is stacked is formed to extend in the vehicle front-rear direction. 31 a is supported by the horizontal wall portion 33 of the covering floor material 24 over the entire vehicle front-rear direction of the cargo bed floor 19.

  As a result, the side portions 30a, 30b, 31a of the underpans 30, 31 are supported throughout the vehicle longitudinal direction, so that the side portions 30a, 30b, 31a of the underpans 30, 31 are bent. As a result, there is no gap between the underpans 30 and 31 and the chassis frame 13, and it is possible to reliably prevent foreign matters, rainwater, and the like from entering the floor surface of the cargo bed floor 19 from below the vehicle. . On the other hand, as compared with the present invention, the side portions 30a, 30b, 31a of the underpans 30, 31 are stacked on the plurality of horizontal joists 16 arranged at predetermined intervals in the vehicle longitudinal direction. In such a case, the side portions 30a, 30b, 31a of the underpans 30, 31 are not supported between the horizontal joists 16, so the side portions 30a, 30b, 31a of the underpans 30, 31 are not supported. Sag may cause a gap between the underpans 30 and 31 and the chassis frame 13, and it is not possible to reliably prevent water from rising onto the floor surface of the cargo bed floor 19.

  Although not shown in the drawings, both ends of the underpans 30 and 31 in the vehicle front-rear direction are stacked on the upper surface of the horizontal joists 16 disposed at both ends of the chassis frame 13 in the vehicle front-rear direction. Both end sides of 31 are supported by lateral joists 16 over the entire vehicle width direction. Accordingly, it is possible to prevent a gap from being generated between the underpans 30 and 31 and the chassis frame 13 due to bending of both end sides of the underpans 30 and 31.

  Next, the assembly process of the cargo bed floor 19 will be briefly described. The operation of assembling the cargo bed floor 19 on the side joist 16 is performed before the operation of mounting the cover plate 20 on the side rail 17.

  First, the covering flooring 24 is mounted so as to cover the pair of vertical joists 15 projecting upward from the upper surface of the horizontal joists 16. Subsequently, the side portion 30a on the outer side in the vehicle width direction is laminated on the upper surface of the upper surface wall 17a of the side rail 17, and the side portion 30b on the inner side in the vehicle width direction is a horizontal wall on the outer side in the vehicle width direction of the covering flooring 24. A pair of underpans 30 are respectively arranged on the outer side in the vehicle width direction of the covering flooring 24 so as to be laminated on the upper surface of the portion 33 and spread on the horizontal joists 16. Further, the underpan 31 is arranged in the vehicle width direction of the covering floor material 24 so that the side portions 31a on both sides in the vehicle width direction are respectively laminated on the upper surface of the horizontal wall portion 33 on the inner side in the vehicle width direction of the pair of covering floor materials 24. Place it on the inside and lay it on the side joists 16. And the horizontal wall part 33 of the covering flooring 24, the side parts 30b and 31a of the underpans 30 and 31 and the lateral joists 16 are fastened together with the tapping screws 34, and the side of the underpans 30 and 31 together with the covering flooring 24 The side portions 30 b and 31 a are fixed to the lateral joists 16.

  Thereafter, a plurality of connecting floor materials 23 are assembled on the underpans 30 and 31 on both sides of the covering floor material 24 to form a pair of outer floor material group 36 and inner floor material group 42. The outer floor material group 36 is formed by assembling the connecting floor materials 23 a to 23 c in order to the outer side in the vehicle width direction of the covering floor material 24, and the tapping screws 34 that fasten the connecting floor materials 23 a to 23 c to the horizontal joists 16. The under pan 30 is fastened to the side joist 16 together. Similarly, the inner floor material group 42 is formed by assembling the connecting floor materials 23 d to 23 f in order in the vehicle width direction inside of the covering floor material 24, and the tapping for fastening the connecting floor materials 23 d and 23 e to the lateral joists 16. The underpan 31 is fastened to the side joists 16 by screws 34.

  Thus, the covering floor material 24 is mounted so as to cover the vertical joists 15 protruding from the upper surface of the horizontal joists 16, and the side portions 30b and 31a on the vertical joist 15 side of the underpans 30 and 31 are attached to the covering floor materials 24. Since it is made to laminate | stack on the upper surface of the horizontal wall part 33, the side parts 30b and 31a by the side of the vertical joist 15 of the underpans 30 and 31 are supported by the horizontal wall part 33 of the covering flooring 24 over the whole vehicle front-back direction. . Accordingly, the side portions 30b and 31a on the vertical joist 15 side of the underpans 30 and 31 are bent, so that no gap is generated between the underpans 30 and 31 and the chassis frame 13, and the floor of the loading platform floor 19 It is possible to reliably prevent water from rising onto the surface.

  Further, since the hat-type covering floor material 24 having the pair of horizontal wall portions 33 disposed on both sides in the vehicle width direction of the vertical joists 15 is provided, a pair of underpans disposed on both sides of the vertical joists 15 in the vehicle width direction. The side portions 30 b and 31 a on the vertical joist 15 side of 30 and 31 can be supported by one covering flooring 24. Therefore, compared with the case where a pair of shape members which support the side portions 30b and 31a on the vertical joist 15 side of the underpans 30 and 31 are arranged on both sides of the vertical joist 15 in the vehicle width direction, the structure of the cargo bed floor 19 is It is simplified and the workability of assembling the cargo bed floor 19 can be improved.

  Furthermore, the engagement grooves 32 are provided on both sides of the floor plate portion 25 of the covering floor material 24 so that the engagement protrusions 40 of the connecting floor materials 23a and 23d and the engagement grooves 32 of the covering floor material 24 are engaged. The work of assembling the connecting floor materials 23a and 23d on both sides of the covering floor material 24 becomes easy, and the workability of assembling the cargo bed floor 19 can be improved.

  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, in the above-described embodiment, the floor structure of the carrier for a transport vehicle according to the present invention is applied to the carrier floor 19 of the carrier 11 of the wing type trailer 10, but it may be applied to a carrier such as another trailer or truck. Also good.

  Moreover, in the said embodiment, although the tapping screw 34 was used as a fastening member, it is not limited to this. Similarly, in the said embodiment, although the underpans 30 and 31 which consist of a resin sheet were used as a waterproof sheet, it is not limited to this.

  Further, in the above-described embodiment, the open floor material in which the seating portions 29 of the adjacent support leg portions 26 are not connected to each other is used as the connection floor material 23. However, the seating portion 29 of the adjacent support leg portion 26 is used. You may make it use for the connection flooring 23 the hollow type flooring which was made to connect mutually.

DESCRIPTION OF SYMBOLS 10 Trailer 11 Loading platform 11a Rear wall 11b Front wall 12 Traveling wheel 13 Chassis frame 14 Tractor 15 Vertical joist 15a Upper surface wall 15b Lower surface wall 15c Connecting wall 15d Through hole 16 Horizontal joist 17 Side rail 17a Upper surface wall 18 Back door 19 Cargo bed floor 20 Plate 21 Wing 21a Side wall part 21b Top wall part 23, 23a-23f Connection floor material 24 Covered floor material 25 Floor board part 26 Support leg part 27, 28 Projection 29 Seating part 30 Under pan (waterproof sheet)
30a, 30b Side part 31 Under pan (waterproof sheet)
31a Side side portion 32 Engagement groove (engagement portion)
33 Horizontal wall 34 Tapping screw (fastening member)
35 Clearance Adjusting Material 38 Outer Floor Material Group 39 Engaging Groove 40 Engaging Protrusion 41 Horizontal Wall 42 Inner Floor Material Group 43 Air Roll 44 Spacer 45 Blind Rivet

Claims (3)

A floor plate portion that forms a floor surface and a plurality of support leg portions that are integrally formed with the floor plate portion and extend downward are provided, each having a plurality of connecting floor materials made of aluminum and a covering floor material. A carrier bed for a transport vehicle that forms a loading platform by arranging the plurality of connecting floor materials on both sides of the covering floor material that is mounted so as to cover a vertical joist projecting from the upper surface of the floor and arranging the connecting floor materials on the horizontal joists A floor structure,
A pair of engaging portions that are provided on both sides of the floor plate portion of the covering floor covering the upper surface of the vertical joists, and are respectively engaged with the connecting floor covering adjacent to both sides of the covering floor;
A pair of horizontal wall portions that extend from the lower ends of the pair of support legs provided on both sides of the covering floor material and are stacked on the upper surface of the horizontal joists;
At least one side part is laminated on the upper surface of the horizontal wall part, and a waterproof sheet spread between the lateral joists and the plurality of connecting floor materials,
A floor structure for a carrier bed for a transport vehicle, comprising: a fastening member that fastens the horizontal wall portion, the waterproof sheet, and the horizontal joists together.   2. The floor structure of a carrier platform according to claim 1, wherein the pair of engaging portions are engaging grooves into which engaging protrusions provided on the adjacent connecting floor members are engaged. The floor structure of the carrier for the transporting vehicle.   The floor structure of a carrier for a carrier vehicle according to claim 1 or 2, wherein a gap adjusting material is sandwiched between a floor plate portion of the covering floor member and an upper surface of the vertical joist. .

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