JP2010058780A - Waterproof structure of box type loading space - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide waterproof structure of a box type loading space, improving durability of a waterproof sheet while securing excellent waterproof function. <P>SOLUTION: The waterproof structure 10 of a box type loading space includes: the waterproof sheet 22 disposed to the outside of the box type loading space 11 having a movable part 13 freely openably/closably movable with respect to a loading space body part 12 to cross over and cover a boundary 14 between the loading space body part 12 and the movable part 13 in an upper face part 11A of the box-type loading space; and engaging parts 24 engaged with engaged parts 23 disposed at ends of the waterproof sheet 22, and disposed in a longitudinal direction of the boundary part 14. In the waterproof structure of a box type loading space, the engaging part 24 is formed in a hollow shape having an opening groove 36 connecting an internal engagement space 24A to the outside. The engaged part 23 is constituted of: a core 26 engaged with the engaging part 24; and a connecting piece 27 wrapping the core 26 and connecting it to the end of the waterproof sheet 22. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a waterproof structure for, for example, a box-type cargo bed in a wing vehicle having a cargo bed body portion and a movable portion, and more specifically, in the upper part of the box-type cargo bed, from the boundary portion between the cargo bed body portion and the movable portion. The present invention relates to a waterproof structure for a box-type cargo bed that prevents water from entering the inside of the cargo bed.

  Conventionally, as a waterproof measure to prevent rainwater or the like from entering the boundary between the movable part of the cargo bed main body and the cargo bed main body at the upper part of the box-type cargo bed of the wing car, the above boundary is made of a waterproof sheet. Covering from the outside, the waterproof sheet was applied to the top of the box-type cargo bed with tape or sealed with a sealing material.

  However, since the boundary portion between the movable part and the cargo bed main body in the upper part of the wing car is formed along the entire longitudinal direction in the upper part of the cargo bed, it is very difficult to perform the above-described construction in the longitudinal direction. In addition to time and labor, construction spots are likely to occur, and water leakage may occur through the gaps left by the construction spots.

Moreover, since the waterproof sheet needs regular maintenance, it is necessary to re-execute after removing the applied sealing material and tape, and time and labor are required each time.
In addition, the truck could not run until the sealing material that had been sealed was dry, forced to be closed, and the loss was also large economically.

Against this background, for example, the following Patent Document 1 discloses a “campus mounting structure for sealing a roof portion in a wing body type packing box” (hereinafter referred to as “campus mounting structure”).
The campus mounting structure in Patent Document 1 includes the campus fixed rail along a center frame disposed in the longitudinal direction at the center in the width direction of the upper part of the loading platform. The campus fixed rail has a fitting groove formed in the longitudinal direction thereof, and the groove opening direction of the fitting groove is formed so as to face outward with respect to the center frame at the upper part of the box-type loading platform. .

  Then, the gap between the center frame and the wing is covered with the campus, and the campus is press-fitted together with the fitting shaft into the fitting groove of the campus fixed rail with the end in the width direction wound around the fitting shaft. Waterproofing measures can be taken by fixing.

  However, since the mounting structure of the campus is formed so that the groove opening direction of the fitting groove faces outward with respect to the center frame, when the campus is fitted into the fitting groove as described above, The end portion in the width direction of the camshaft excessively contacts the opening edge of the fitting groove in the campus fixed rail.

  As a result, the end portion of the campus in the width direction is worn out every time the movable portion moves, and thus easily breaks. When the end portion in the width direction of the campus is damaged, it is necessary to replace the entire campus from the viewpoint of waterproofness. Therefore, it is necessary to replace each time, and the cost is increased.

Japanese Utility Model Publication No. 02-40625

  Therefore, an object of the present invention is to provide a waterproof structure for a box-type cargo bed capable of improving the durability of a waterproof sheet while ensuring an excellent waterproof function.

  The present invention provides the box from the boundary between the cargo bed main body portion and the movable portion in the upper part of the box-type cargo bed constituted by the cargo bed main body portion and a movable portion that can be opened and closed with respect to the cargo bed main body portion. A waterproof structure for a box-type cargo bed that prevents water from entering the inside of the mold bed, provided on the outside of the box-type cargo bed, and covering the boundary portion, and provided at the end of the waterproof sheet The engagement portion is arranged in the longitudinal direction of the boundary portion for engaging the engagement portion, and the engagement portion is formed in a hollow shape having an opening groove that communicates the internal engagement space with the outside. And the said to-be-engaged part is comprised with the core material engaged with the said engaging part, and the connection piece which wraps this core material and it connects with the edge part of the said waterproof sheet, It is characterized by the above-mentioned.

  By the above configuration, by covering the boundary portion between the cargo bed main body portion and the movable portion with a waterproof sheet in a state straddling from the outside, it is possible to prevent inflow of water from the boundary portion to the inside of the box type cargo bed. It can be surely prevented.

  Further, the end portion of the waterproof sheet is a portion that is particularly likely to be loaded and easily damaged by contacting the engaging portion every time the movable portion is moved, and a connecting piece is provided at the end portion of the waterproof sheet. By configuring, the strength of the waterproof sheet can be improved efficiently.

  Furthermore, since the end of the waterproof sheet is formed with a connecting piece that is a separate member from the waterproof sheet, for example, if the connecting piece is formed of a material having higher strength than the waterproof sheet, The strength of the end portion of the waterproof sheet can be intensively improved.

  Furthermore, since the connecting piece is connected to the end portion of the waterproof sheet in a state of wrapping the core material, water can be prevented from entering between the core material and the connecting piece. Therefore, generation | occurrence | production of mold | fungi etc. can be prevented and it can prevent that a waterproofing function falls because a raw material deteriorates.

  In addition, the movable portion includes a configuration that can move in various directions, such as rotating in a freely openable and closable manner with respect to the cargo bed body, sliding in a linear direction, or moving in combination with sliding and rotation. .

  As an aspect of the present invention, the connecting piece can be configured in a form in which both sides of the waterproof sheet are sandwiched and attached to end portions of the waterproof sheet.

  By the said structure, it can connect firmly by the said connection piece from the both surfaces side in the edge part of the said waterproof sheet. Furthermore, since it becomes possible to wrap the whole circumferential direction of a core material with a connection piece, it can prevent more reliably that water permeates between a connection piece and a core material.

  As an aspect of the present invention, the opening direction of the opening groove with respect to the engagement space in the engagement portion can be formed obliquely upward with respect to the outer side in the width direction of the boundary portion.

  With the above configuration, when the engagement portion is engaged with the engagement portion by directing the opening direction of the opening groove of the waterproof sheet in the engagement portion to the outside with respect to the boundary portion, the end of the waterproof sheet It can attach in the state which covered the engaging part by the part, and can prevent that water permeates into the engaging part of an engaging part and a to-be-attached part.

  Furthermore, by forming the opening direction of the opening groove in the engaging portion obliquely upward with respect to the outside in the width direction of the boundary portion, it is easy to fold lightly without folding the sheet end portion inward. Can be attached to the attachment portion. Furthermore, when the engaged portion is engaged with the engaging portion, contact resistance generated when the connecting piece of the engaged portion comes into contact with the engaging portion can be reduced. The load can be reduced and the durability of the waterproof sheet can be improved.

  Further, as an aspect of the present invention, the engagement portion has an insertion engagement structure in which the core material together with the connecting piece is inserted in the engagement space in the longitudinal direction to engage the engagement portion, and the opening The groove can be formed with a groove width that allows insertion of the connecting piece and does not allow passage of the core material.

  With the above configuration, for example, the groove width of the opening groove of the engaging portion is passed through the core material, as compared with a fitting engagement structure in which the engaged portion is engaged by being pushed into the opening groove from the outside of the engaging portion. Can be formed with a small groove width that does not allow the above.

  Therefore, even if the movable portion is repeatedly moved, it is possible to reliably prevent the engaged portion from being unexpectedly removed through the opening groove of the engaging portion, and to be firmly attached.

  Further, when the attached portion is attached to or detached from the attached portion, the attached portion can be easily attached or detached by sliding the attached portion in the longitudinal direction of the attached portion and inserting / removing it.

  Further, as an aspect of the present invention, the facing portion between the connecting piece and the core member can be configured with a position shift preventing structure that prevents the connecting piece and the core member from shifting in the longitudinal direction. .

  By the said structure, when a to-be-engaged part is fastened to a fastening part, it can prevent that the said connection piece and the said core material mutually shift in a longitudinal direction. For this reason, the connecting piece is loosened in the engagement space or the core material is twisted, and a space is unexpectedly generated between the engagement portion and the engagement portion, and water enters the space. As a result, mold and the like can be prevented from occurring.

  For example, the misalignment prevention structure can be configured such that the engaged portion wraps the entire circumferential direction of the core member in a state where the connecting piece is in close contact with the core member. In the case of this structure, since the integrity of the connecting piece and the core material is improved, it is possible to reliably prevent the engaged portion from being displaced in the longitudinal direction of the engaging portion.

  Moreover, as an aspect of the present invention, an end waterproof structure is configured at at least one end in the longitudinal direction of the waterproof sheet, and the end waterproof structure includes a center side flap portion formed on the center side in the width direction, and The outer side flap part formed in the outer side of the width direction can be provided, the said center side flap part can be attached to the said load body main-body part in the suspended state, and the said outer side flap part can be attached to the said movable part.

  With the above configuration, water enters the lower side of the waterproof sheet covering the boundary portion from at least one end side in the longitudinal direction of the waterproof sheet at the center side flap portion and the outer side flap portion, and through the boundary portion. It is possible to reliably prevent water from entering the inside of the box-type carrier.

  Further, as an aspect of the present invention, an auxiliary waterproof sheet that assists the waterproof sheet is provided on the lower side of the waterproof sheet in an arrangement that covers the boundary portion, and an engaged portion provided at an end of the waterproof sheet is provided. An engaging member is constituted by the engaging part to be attached and an attaching part attached to the upper part of the box-type carrier, and the engaging member is arranged in the width direction of the boundary portion at the upper part of the box-type carrier. The auxiliary waterproof sheet is interposed between the upper part of the box-type cargo bed and the attachment part, and can be sandwiched between the upper part of the box-type cargo bed and the attachment part. .

  With the above configuration, even if water enters the lower side of the waterproof sheet through between the engaged part and the attached part, the lower side of the waterproof sheet is arranged so as to cover the auxiliary waterproof sheet across the boundary part. Therefore, it is possible to prevent water that has entered the lower side of the waterproof sheet from further entering the boundary portion.

  Therefore, the waterproof structure of the box-type carrier is installed on the upper part of the box-type carrier for a long period of time and may be exposed to rain and wind. Even if it tries, it can prevent surely.

  In addition, the waterproof structure of the box-type cargo bed can be easily attached / detached to the waterproof sheet and the auxiliary waterproof sheet even for an amateur who does not have specialized technology. For example, the waterproof structure can be sealed with a sealing material or tape. Since spots do not occur as in the case of reinforcement, the water stop performance can be obtained with good appearance and reliability.

  As an aspect of the present invention, a water stop layer can be formed between the upper part of the box-type carrier and the attachment part.

  The water blocking layer can reliably prevent water from entering the lower part of the waterproof sheet through the space between the upper part of the box-type cargo bed and the mounting part, and further entering the boundary part.

  As an aspect of the present invention, the engaging attachment member can be fastened together with the auxiliary waterproof sheet to the upper portion of the box-type cargo bed by fastening means.

  Since the engaging attachment member can be attached to the upper part of the box-type cargo bed together with the auxiliary waterproof sheet and the water-stopping layer at the same time, the attachment process and the number of parts can be reduced, so the attachment effort And cost can be reduced.

  Furthermore, the auxiliary waterproof sheet and the water blocking layer can be firmly sandwiched between the attachment portion of the engaging attachment member and the upper portion of the box-type bed using the fastening force of the fastening means.

  According to the present invention, it is possible to provide a waterproof structure for a box-type cargo bed capable of improving the durability of a waterproof sheet while ensuring an excellent waterproof function.

The external view of the wing vehicle provided with the waterproof structure of the box-type loading platform of 1st embodiment. Structure explanatory drawing of the waterproof structure of the box-type cargo bed of 1st embodiment shown by the AA cross section in FIG. The enlarged view of the area | region X in FIG. Structure explanatory drawing of a waterproof sheet edge part. Structure explanatory drawing of the waterproof structure of the box-type cargo bed of 1st embodiment shown in the state which opened the wing. Action explanatory drawing which showed a mode that a waterproof sheet was attached to a box-type loading platform. Structure explanatory drawing of the waterproof structure of the box-type loading platform of 2nd embodiment. Structure explanatory drawing of the edge part of the longitudinal direction of the waterproof structure of the box-type carrier of 2nd embodiment. Explanatory drawing of the attachment method of the waterproof structure of the box-type loading platform of 2nd embodiment. Explanatory drawing of the attachment method of the waterproof structure of the box-type loading platform of 2nd embodiment. Explanatory drawing of the attachment method of the waterproof structure of the box-type loading platform of 2nd embodiment. Explanatory drawing of the attachment method of the waterproof structure of the box-type loading platform of 2nd embodiment. Structure explanatory drawing of the waterproof structure of the box-type loading platform of 3rd embodiment. Sectional drawing which shows the waterproof structure of the box-type loading platform of 3rd embodiment. The enlarged view of the area | region X in FIG. Structure explanatory drawing of the waterproof structure of the box-type cargo bed of 3rd embodiment shown in the state which opened the wing. Explanatory drawing of an effect | action of the waterproof structure of the box-type loading platform of 3rd embodiment. Explanatory drawing of the attachment method of the waterproof structure of the box-type loading platform of 3rd embodiment. Structure explanatory drawing which showed the waterproof structure of the box-type loading platform of 3rd embodiment corresponding to FIG.11 (b) and FIG.12 (b). Structure explanatory drawing of the waterproof structure of the box-type loading platform of 4th embodiment. Structure explanatory drawing of the waterproof structure of the box-type loading platform of 5th embodiment. Structure explanatory drawing of the waterproof structure of the box-type loading platform of 6th embodiment.

An embodiment of the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is an external view of a wing vehicle 60 as viewed obliquely from the front. 2 is a cross-sectional view taken along the line AA in FIG. 1, FIG. 3 is an enlarged view of a region X in FIG. 2, and FIG. 4 schematically shows the configuration of the end portion in the width direction of the waterproof sheet 22. FIG. 5 is a cross-sectional view taken along line AA of FIG. 1 when the wing 13 is moved upward.
4 includes FIGS. 4A to 4D. FIG. 4A is a plan view of an end portion in the width direction of a waterproof sheet 22 to be described later, and FIG. 4B is FIG. FIG. 4C is an enlarged view of the region Y in FIG. 4B, and FIG. 4D is an enlarged view of the region Z in FIG. 4B. ing.

  In the following description, unless otherwise indicated, the longitudinal direction indicates the vehicle length direction of the wing vehicle 60, and the width direction is the direction perpendicular to the longitudinal direction, that is, the vehicle of the wing vehicle 60. The width direction shall be indicated.

  The box-type loading platform 11 provided in the wing vehicle 60 includes a loading platform main body 12 and a wing 13 that is movable with respect to the loading platform main body 12 so as to be freely opened and closed.

  The cargo bed body 12 includes a front wall 15 and a rear door frame 16 (see FIG. 1), and is installed in the longitudinal direction between the central portions of the upper portions of the front wall 15 and the rear door frame 16 in the width direction. The intermediate support portion 17 is provided.

  The wing 13 is provided on each side in the width direction with respect to the intermediate support portion 17, and is configured in an inverted L shape in cross section by a wing roof portion 13 a and a wing side wall portion 13 b.

As shown in FIG. 2, the upper surface portion 11A of the box-type cargo bed 11 is formed in a substantially flat shape with the wing roof portion 13a on each side in the width direction and the intermediate support portion 17, and the intermediate support portion 17 and the wing roof portion 13a. The boundary portion 14 includes a pivot portion 21. The wing 13 is configured to be rotatable with respect to the intermediate support portion 17 with the pivot portion 21 as a fulcrum.
The waterproof structure 10 for the box-type cargo bed in the first embodiment is configured along the longitudinal direction in the intermediate portion in the width direction of the upper surface portion 11A of the box-type cargo bed 11 configured as described above, and is provided in the cargo bed main body portion 12. In addition, water is prevented from entering the inside of the box-type cargo bed 11 from the boundary portion 14 between the intermediate support portion 17 and the wing 13.
The waterproof structure 10 of the box-type cargo bed is provided above the upper surface portion 11A of the box-type cargo bed 11 and covers the waterproof sheet 22 that covers the boundary portion 14 and both ends of the waterproof sheet 22 in the width direction. The engagement portion 24 is arranged in the longitudinal direction of the boundary portion 14 to be worn.

  Further, at both ends in the width direction of the waterproof sheet 22, there are provided engaged portions 23 that can be engaged with the engaging portions 24 formed on the upper surface portion 11 </ b> A of the box-type loading platform 11.

  Specifically, the waterproof sheet 22 has a width that can be attached to the wing roof portion 13a on both sides in the width direction of the intermediate support portion 17 in a state of straddling the intermediate support portion 17 (see FIG. 2). It is formed in a vertically long band shape having a length of 17 in the longitudinal direction (see FIG. 1).

As shown in FIG. 4B, the waterproof sheet 22 has a PVC layer 25 coated with polyvinyl chloride (PVC) formed on both surfaces.
Note that the PVC layer 25 is not limited to being formed on both surfaces of the waterproof sheet 22, but may be formed on at least end portions in the width direction on both surfaces of the waterproof sheet 22.

  Furthermore, as shown in FIGS. 4A and 4B, the engaged portion 23 provided at the end of the waterproof sheet 22 includes a core material 26 engaged with the engagement portion 24, and the core material. 26 and a connecting piece 27 that wraps 26 and connects to the end of the waterproof sheet 22.

  The core material 26 is formed of a long and flexible columnar shape using polyvinyl chloride. The thickness is formed to be approximately 2 mm smaller than the inner diameter of the engagement space 24A so as to be inserted into the engagement space 24A of the engagement portion 24, and the length thereof is substantially the same as the length of the intermediate support portion 17 in the longitudinal direction. It is formed with length.

The connecting piece 27 is a cloth piece formed in a vertically long shape having the same length as the core material 26, and is formed of a woven cloth made of nylon fiber having excellent wear resistance. As shown to d), it forms with the fabric | texture by which many smooth and hard unevenness | corrugations 31 appear on the whole surface. Furthermore, as shown in FIGS. 4B and 4C, a PVC layer 32 coated with polyvinyl chloride is formed on both surfaces of the connecting piece 27.
FIG. 4B illustrates only the PVC layer 25 formed on the surfaces facing each other when the core material 26 is wrapped, out of the PVC layers 25 formed on both surfaces of the connection piece 27. Illustration of the PVC layer 25 formed on the outer surface is omitted.

  As described above, the connecting piece 27 is wrapped in a state where the core material 26 is arranged in the middle in the width direction over the entire longitudinal direction, and is further wrapped at both ends in the width direction which are extra length portions when wrapped. The end of the waterproof sheet 22 is fixed in a state where it is sandwiched from both sides (see FIG. 4B).

  The connecting piece 27 and the waterproof sheet 22 are integrally fixed to each other by welding the opposing portions by welder welding.

  As described above, since the PVC layers 25 and 32 made of thermoplastic resin are formed on the surface of the connecting piece 27 and the end of the waterproof sheet 22 as described above, as shown in FIG. The PVC layer 32 of the connecting piece 27 and the PVC layer 25 of the waterproof sheet 22 can be welded in a polymerized state.

  Therefore, excellent weldability can be exhibited, and it is possible to weld firmly without generating a gap in the facing portion between the connecting piece 27 and the waterproof sheet 22.

  Further, an anchoring plate 33 made of aluminum is attached to an end of the wing roof portion 13a facing the intermediate support portion 17 in the width direction in parallel to the intermediate support portion 17 (see FIGS. 2 and 3). ).

  The engaging plate 33 is made of aluminum, and has a plate main body portion 34 formed in a plate shape that can be attached to the wing roof portion 13a, and a rail-like outer side in the width direction of the plate main body portion 34. And the engaging portion 24 protruding over the entire length (see FIG. 2).

The engaging plate 33 is attached by fastening to the wing roof portion 13a at predetermined intervals with bolts 35 as a plurality of fastening means in the longitudinal direction of the plate main body portion 34.
The engaging portion 24 has a hollow shape with an annular shape in cross section, and a part in the circumferential direction is cut away to form an opening groove 36 that connects the internal engaging space 24A and the outside. The engaging portion 24 is configured in a rail shape by including the opening groove 36 formed in a slit shape over the entire longitudinal direction of the engaging portion 24.

  As shown in FIG. 3, the opening direction of the opening groove 36 with respect to the engagement space 24 </ b> A in the engagement portion 24 is directed to the outside in the width direction of the boundary portion 14 as shown in FIG. 3. Forming.

  Further, the engaging portion 24 is configured so that the engaged portion 23 (that is, the core member 26 together with the connecting piece 27) can be inserted in the longitudinal direction, and the opening groove 36 is formed by the engaged portion 23. Is inserted into the engaging portion 24, the end of the connecting piece 27 is configured to communicate with the inside and outside of the engaging space 24A.

  Specifically, the opening groove 36 is formed with a groove width that allows the connecting piece 27 to be inserted and does not allow the core material 26 to pass therethrough.

  In other words, the opening groove 36 is formed with a groove width narrower than the compressed diameter when the core material 26 is compressed, and is wider than the thickness of the connecting piece in the form sandwiching both sides of the waterproof sheet. It is formed with a width.

The waterproof structure 10 for a box-type cargo bed having the above-described configuration can exhibit the following operations and effects.
The waterproof structure 10 of the box-type carrier can cover the boundary portion 14 between the intermediate support portion 17 and the wing roof portion 13a with the waterproof sheet 22 from above, as shown in FIG. Similarly, when the wing 13 is rotated upward, the boundary portion 14 can be kept covered with the waterproof sheet 22, so that water flows into the box-type bed 11 from the boundary portion 14. This can be surely prevented.

  Further, as described above, the waterproof structure 10 of the box-type cargo bed is configured so that the opening direction of the opening groove 36 with respect to the engagement space 24A in the engagement portion 24 is set to the outside in the width direction of the boundary portion 14, that is, Since the box-type loading platform 11 is formed so as to face the outer side in the width direction, when the engaged portion 23 is engaged with the engaging portion 24, the engaged portion 23 is disposed on the lower side of the waterproof sheet 22. It can be engaged in a form folded back inward in the width direction of 22 (see FIG. 3).

  For this reason, the engaging portion 24 and the engaged portion 23 are covered with the end portion of the waterproof sheet 22 by winding the end portion of the waterproof sheet 22 inward and downward in the width direction of the waterproof sheet 22. It is possible to prevent the water from entering between the engaging portion 24 and the engaged portion 23.

Further, the end portion of the waterproof sheet 22 is rubbed against the edge portion of the engaging groove 24, particularly when the engaged portion 23 is inserted into the engaging space 24 </ b> A, or whenever the wing 13 is moved, so that a load is applied. Although it is easy, by providing the connecting piece 27 formed of nylon fiber, it is possible to improve the strength of the end portion of the waterproof sheet 22 that receives a load among the waterproof sheets 22.
Thereby, the durability of the entire waterproof sheet 22 can be efficiently improved while ensuring the excellent waterproof property originally provided in the waterproof sheet 22 itself.
The connecting piece 27 is not limited to being formed of nylon fiber, but can be formed in other forms as long as the form has excellent wear resistance.

  Further, the connecting piece 27 is in a state of wrapping the core material 26 and is connected to the end portion of the waterproof sheet 22 in a state of being in close contact with the entire circumferential direction of the core material 26 (FIG. 4B). Reference), it is possible to reliably prevent water from entering between the connecting piece 27 and the core member 26, generating mold, and the like so that the core member 26 itself deteriorates and the waterproof function is lowered.

  Furthermore, since the to-be-attached part 23 is the structure inserted | pinched from the both surfaces side in the edge part of the said waterproof sheet 22 with the edge part of the said connection piece 27, and connected to the edge part of this waterproof sheet 22, the said waterproof sheet 22 and the connecting piece 27 can be firmly connected.

  Further, by fixing the connecting piece 27 and the end portion of the waterproof sheet 22 by welding by welding (thermal welding), excellent integrity can be ensured even if the fixed portion gets wet with water, Since no through holes are formed by seams as in the case of sewing, water does not pass through the waterproof sheet 22 and the connecting piece 27, and excellent waterproof properties can be ensured.

  In addition, the connection piece 27 and the core member 26 are welded together by welder welding, so that the entire peripheral direction of the core member 26 is wrapped with the connection piece 27 in close contact with the core member 26 as described above. The wearing part 23 can be easily manufactured. Thus, mass production of the waterproof sheet 22 provided with the to-be-attached part 23 of the form excellent in waterproofness and durability can be achieved.

  The waterproof structure 10 for a box-type cargo bed is formed with the opening groove 36 having a groove width that allows the connection piece 27 to pass therethrough and does not allow the core material 26 to pass therethrough. The core member 26) together with the connecting piece 27 is configured with an insertion engagement structure that can be inserted into the engagement space 24A of the engaged portion 23 in the longitudinal direction.

  Thereby, for example, compared with a configuration in which the engaged portion 23 is engaged with the engaging portion 24 by fitting through the opening groove 36, the groove width of the opening groove 36 of the engaging portion 24 is reduced to the core. The groove 26 can be formed with a small groove width that does not allow the fitting of the material 26.

  Therefore, once the engaged portion 23 is inserted into the engaging portion 24, even if the wing 13 is repeatedly moved unless it is intentionally extracted, the engaged portion 23 unexpectedly extends from the opening groove 36 of the engaging portion 24. It can be firmly attached without being removed.

Next, a procedure for attaching the waterproof sheet 22 to the box-type loading platform 11 will be described with reference to FIG.
FIG. 6 is an explanatory diagram for explaining a method of attaching the waterproof sheet 22 to the box-type loading platform 11.

The engaged portion 23 is engaged with the engaged portion 24. This is because the engaged portion 23 is, for example, a front end side opening portion among the openings that open at both ends in the longitudinal direction of the engaged portion 24. It engages by inserting into the engaging space A of the engaging part 24 from 24b.
At this time, the engaged portion 23 is inserted into the engaging portion 24 in a state where the end portion of the connecting piece 27 is communicated with the opening groove 36 of the engaging portion 24.

  And the to-be-engaged part 23 is attached to the engaging part by pulling the both sides of the waterproof sheet 22 to the rear side in the longitudinal direction of the engaging part 24 by picking both sides in the width direction by hand. In a state where it is inserted into 24, it can be slid at a stroke.

The waterproof structure 10 of the box-type cargo bed is configured such that the waterproof sheet 22 is covered with the box-type cargo bed 11 in a state where the boundary portion 14 between the cargo bed main body 12 and the wing 13 is covered from above (that is, outside the cargo bed main body 12). The following operational effects can be obtained by such attachment.
In order to ensure the waterproof property of the boundary portion 14 between the intermediate support portion 17 and the wing roof portion 13a, the waterproof sheet 22 needs to be attached to the box-type bed 11 over the entire longitudinal direction of the boundary portion 14. However, the waterproof structure 10 for the box-type cargo bed described above can be engaged simply by inserting the engaged portion 23 into the engaging portion 24 and sliding it.

  For this reason, compared with the waterproof structure of the conventional box-type cargo bed which attaches the waterproof sheet 22 by caulking or rivets, the installation work time and labor costs can be significantly reduced. Furthermore, even a person who attaches and detaches the waterproof sheet 22 for the first time without skilled skills can easily perform it at the site and without any spots on the finish.

  Further, when inserted into the engaging portion 24, the connecting piece 27 excessively contacts the edge of the opening groove 36 due to the tension between the widths of the waterproof sheet 22 stretched horizontally on the upper surface portion 11 </ b> A of the box-type loading platform 11. Damage can be mitigated.

  Further, since the connecting piece 27 is held in a state of being in close contact with the core member 26 and enclosing the entire circumferential direction of the core member 26, the engaged portion 23 is inserted into the engaging portion 24 and slid. In this case, the connecting piece 27 and the core member 26 can be integrally slid in the engagement space 24A without being displaced from each other in the longitudinal direction.

  Furthermore, since the connecting piece 27 has the PVC layer 32 formed on the surface, the engaged portion 23 is normally difficult to slide in the engaging space 24A due to the frictional resistance against the engaging portion 24. Since the texture of the irregularities 31 appears on the surface of the connecting piece 27 (see FIG. 5D), a plurality of smooth and hard convex portions of the irregularities 31 are involved. By making contact with the inner peripheral surface of the attachment portion 24, the engagement portion 23 can be smoothly slid with respect to the engagement portion 24, and the engagement portion 23 is repeatedly slid in the engagement space 24A. However, it is possible to prevent the connecting piece 27 from being deteriorated due to wear.

Moreover, the waterproof structure of the box-type carrier of the present invention is not limited to the above-described embodiment, and can be configured in other embodiments.
Below, the waterproof structure of the box-type loading platform in other embodiment is demonstrated.
However, among the configurations of the waterproof structure 61, 71, 81, 81, 101 of the box-type cargo bed described below, the same reference numerals are used for the same configurations as the waterproof structure 10 of the box-type cargo bed in the first embodiment described above. The description is omitted.

(Second embodiment)
For example, as shown in FIG. 7, the waterproof structure 61 of the box-type cargo bed in the second embodiment has a water intrusion from the boundary portion 14 to the inside of the box-type cargo bed 11 on at least one end side in the longitudinal direction. It is possible to configure the end side waterproof structure 62 that prevents the above.
FIG. 7 shows an external view of the waterproof structure 61 of the box-type cargo bed provided with the end side waterproof structure 62.

As shown in FIG. 7, the waterproof sheet 22 used for the waterproof structure 61 of the box-type cargo bed is formed in an end shape as shown in FIG. 8 before being mounted on the box-type cargo bed 11.
8A is a cross-sectional view taken along the line CC of FIG. 8B, and FIG. 8B is a plan view of the end portion side portion of the waterproof sheet 22 in the longitudinal direction. (C) is the DD line end view of FIG.8 (b).

As shown in FIG. 8, the end of the waterproof sheet 22 in the longitudinal direction is formed in a shape in which both outer sides protrude in the longitudinal direction with respect to the intermediate portion in the width direction. Furthermore, by superposing the sheet-like member 63 formed separately on the end of the waterproof sheet 22 in the longitudinal direction from the back side, the end of the waterproof sheet 22 is centered on the center in the width direction. While forming the side flap part 64, the outer side flap part 65 is formed in each side of the both outer sides of the width direction.
Note that the sheet-like member 63 has the same shape as the end shape in the longitudinal direction of the waterproof sheet 22 and the front view (back view), and is formed of the same material.

  The central flap portion 64 is welded to the entire circumferential direction of the central flap portion 64 to integrally form the waterproof sheet 22 and the sheet-like member 63 in a polymerized state.

  The outer flap portion 65 is welded to only the inner portion in the width direction of the outer flap portion 65 so as to be openable in a flap shape outward in the width direction (see FIG. 8A).

  A foamed urethane member 66 formed in a sheet shape is attached to the surface of the outer side flap portion 65 on the side facing the sheet-like member 63 of the waterproof sheet 22.

A procedure for mounting the waterproof structure 61 of the box-type cargo bed provided with the end-side waterproof structure 62 configured as described above to the box-type cargo bed 11 as shown in FIG. 7 will be described with reference to FIGS. To do.
9 to 12 are explanatory views for explaining a procedure for mounting the waterproof structure 61 of the box-type cargo bed to the box-type cargo bed 11. Particularly, FIG. 11 (b) is an E diagram of FIG. 11 (a). -E line arrow expanded sectional view is shown, and FIG.12 (b) has shown the FF line arrow expanded sectional view of Fig.12 (a).

  First, as already described with reference to FIG. 6, the waterproof structure 61 of the box-type cargo bed attaches the engaged portion 23 to the engaging portion 24 and slides the waterproof sheet 22 in the longitudinal direction of the engaging portion 24. Thus, it can be attached to the box-type carrier 11.

  At this time, as indicated by phantom lines in FIG. 9, the end portion in the longitudinal direction of the waterproof sheet 22 can constitute an extra length portion 69 that is not attached to the engaging portion 24. The extra length portion 69 can be composed of a center side flap portion 64 and an outer side flap portion 65.

  As shown in FIG. 10 from the state shown in FIG. 9, the central side flap part 64 is folded downward by approximately 90 degrees and the central side flap part 64 in the suspended state is connected to the intermediate support part 17 in the box-type cargo bed main body part 12. The fixed frame 100 disposed at the end in the longitudinal direction is bent into an L shape along the L shape in a sectional view.

  Then, as shown in FIGS. 11A and 11B, the center side flap portion 64 is fastened to the fixed frame 100 by fastening with the screw 60 via the L-shaped bracket 67.

  Further, as shown in FIG. 11 (a), the outer flap portion 65 extends along the end shape of the movable frame 101 as shown in FIGS. 12 (a) and 12 (b) from a state in which the outer flap portion 65 protrudes outward in the longitudinal direction. The sheet-like member 63 can be attached by being bent approximately 90 degrees downward and inserting the sheet-like member 63 into the back side of the movable frame 101.

Accordingly, as shown in FIG. 12B, the outer flap portion 65 is attached to the opposite end portion of the movable frame 101 in a form sandwiched between the waterproof sheet 22 and the sheet-like member 63 constituting the outer flap portion 65. be able to.
The fixed frame 100 is a frame that forms part of the cargo bed body 12 together with the intermediate support 17. The movable frame 101 is a frame that constitutes a part of the wing roof portion 13a, and is a frame that is disposed in the width direction at the end portion in the longitudinal direction of the wing roof portion 13a. Further, the movable frames 101 on each side in the width direction are arranged so that the ends thereof face each other in the width direction.

  As shown in FIG. 7, the pressing plate 68 and the movable frame 101 are screwed together while the outer flap portion 65 is pressed against the movable frame 101 with a pressing plate 68 made of aluminum or the like. The waterproof structure 61 of the box-type cargo bed provided with the waterproof structure 62 can be securely attached to the box-type cargo bed 11.

  Since the waterproof structure 61 of the box-type cargo bed is provided with the end-side waterproof structure 62, the above-mentioned boundary from the end in the longitudinal direction of the box-type cargo bed 11 is formed by the center side flap portion 64 and the outer side flap portion 65 that are bent downward. Water can be reliably prevented from entering the inside of the box-type carrier 11 through the portion 14.

  Furthermore, since the waterproof structure 61 of the box-type cargo bed is easy to attach to the box-type cargo bed 11 as described above, it can be easily attached and detached at the site.

  Furthermore, when the wing 13 is moved, the movable frame 101 moves upward with respect to the fixed frame 100 and is tilted. For this reason, the end portion of the waterproof sheet 22 has a shape in which the outer side flap portion 65 attached to the movable frame 101 is inclined with respect to the center side flap portion 64 attached to the fixed frame 100.

Thus, since the outer side flap part 65 and the center side flap part 64 move independently corresponding to the movement of the wing 13, respectively, the waterproof sheet 22 is damaged due to excessive stretching or the like of the wing 13. There is no blocking movement.
Furthermore, the water stop performance of the end portion in the longitudinal direction of the box-type cargo bed 11 can be maintained in an excellent state both when the wing 13 is lowered or moved upward.

(Third embodiment)
Next, a waterproof structure 71 for a box-type cargo bed according to a third embodiment will be described. As shown in FIGS. 13 to 15, the waterproof structure 71 of the box-type cargo bed according to the third embodiment is configured such that the auxiliary waterproof sheet 72 that assists the waterproof sheet 22 is disposed so as to cover the boundary portion 14. 22 is provided on the lower side.

  Specifically, the auxiliary waterproof sheet 72 is formed in a vertically long belt shape having substantially the same length and width as the waterproof sheet 22 and is formed of the same water-repellent material as the waterproof sheet 22. A PVC layer 25 coated with vinyl (PVC) is formed.

  Both side portions of the auxiliary waterproof sheet 72 in the width direction are between the plate main body portion 34 and the wing roof portion 13a (upper surface of the wing) of the anchoring plate 33, and the plate main body portion 34 and the wing roof portion 13a from both the upper and lower sides. It is pinched.

  Further, as shown in FIG. 15, water blocking layers 73 are formed on both surfaces of the auxiliary waterproof sheet 72 between the plate main body portion 34 and the wing roof portion 13 a.

  The water stop layer 73 is configured by interposing a water stop sheet 73A formed of a material having a water stop function such as butyl rubber or silicon rubber.

The waterproof sheet 73A includes four sheets formed in a vertically long belt shape having substantially the same length as the auxiliary waterproof sheet 72 so that the waterproof sheet 73A can be fixed over the entire longitudinal direction of the auxiliary waterproof sheet 72. On both sides of the waterproof sheet 72 in the width direction, the waterproof sheet 72 is fixed to both sides.
In addition, the auxiliary | assistant waterproof sheet 72 is not equipped with the to-be-attached part 23 (the core material 26 and the connection piece 27) like the waterproof sheet 22 in the both ends of the width direction.

  The auxiliary waterproof sheet 72 is disposed so as to face the waterproof sheet 22 so as to be substantially parallel to the waterproof sheet 22 over the entire length in the longitudinal direction of the intermediate support portion 17 at a predetermined distance from the waterproof sheet 22 when the wing 13 is lowered. ing.

The auxiliary waterproof sheet 72 is firmly sandwiched between the plate body portion 34 and the wing roof portion 13a using the fastening force of the bolts 35 for attaching the engaging plate 33 to the wing roof portion 13a.
Specifically, when attaching the anchoring plate 33 to the wing roof portion 13a, the anchoring plate 33 is attached to the wing roof portion 13a together with the auxiliary waterproof sheet 72 and the waterproof sheets 73A arranged on both sides thereof. The fastening plate 33, the auxiliary waterproof sheet 72, and the waterproof sheet 73A are integrally attached to the wing roof portion 13a by tightening.
The waterproof sheet 73A may be fixed to the auxiliary waterproof sheet 72 in advance by, for example, adhering with an adhesive or heat welding.

The waterproof structure 71 of the box-type cargo bed having the above-described configuration can exhibit the following operations and effects.
As shown in FIG. 16, when the wing 13 is rotated upward, the wing roof portions 13 a on both sides of the intermediate support portion 17 in the width direction are inclined in a V shape as viewed from the front. Even in this case, the auxiliary waterproof sheet 72 is deformed flexibly into a concave shape in cross-sectional view along the wing roof portion 13a and the intermediate support portion 17, and covers the boundary portion 14 without partially relaxing. Can keep.

  On the other hand, for the waterproof sheet 22, when the wing 13 is rotated upward, as described above, the central portion in the width direction is deformed flexibly without being partially relaxed into a convex shape in a sectional view protruding upward, The wing 13 can be smoothly rotated without interference between the waterproof sheet 22 and the auxiliary waterproof sheet 72.

Further, specific actions and effects obtained when the water-proof intrusion into the boundary portion 14 is prevented by the waterproof structure 71 of the box-type cargo bed will be described with reference to FIGS. 17 (a) and 17 (b).
17A is an enlarged view of the region X in FIG. 14, and FIG. 17B is a cross-sectional view of the vicinity of the bolt 35 that fastens the engaging plate 33. It is action explanatory drawing for demonstrating a mode that the permeation of the water from the outer side of the structure 71 to an inner side is prevented.
The bold arrows D1 to D4 in FIGS. 17A and 17B schematically show how water flows into the boundary portion 14 so that the bold arrows D1 to D4 are shown. Of these, arrows D2, D3, and D4 indicated by phantom lines indicate the water intrusion route when water has entered, and the “x” mark attached to the tip of the bold arrow indicates that the water has entered further. It shall indicate that the water has been stopped so as not to enter.

  Furthermore, the inner side of the waterproof structure 71 of the box-type cargo bed indicates the inner space A of the boundary portion 14 surrounded by the engagement plate 33, the waterproof sheet 22, and the upper surface of the box-type cargo bed 11 (FIG. 17). (Refer to (a)), the outside of the waterproof structure 71 of the box-type cargo bed indicates the outside with respect to the inside space A.

First, as shown by an arrow D1 in FIG. 17A, when water tries to enter from the outside to the inside of the waterproof structure 71 of the box-type cargo bed through the space between the engaging plate 33 and the wing roof portion 13a. Will be described.
Between the engaging plate 33 and the wing roof portion 13a, both sides of the auxiliary waterproof sheet 72 are provided with water blocking layers 73, and further between the engaging plate 33 and the wing roof portion 13a by bolts 35. Since the auxiliary waterproof sheet 72 and the waterproof layer 73 are integrally fastened, the auxiliary waterproof sheet 72 and the engagement plate 33 and the auxiliary waterproof sheet 72 and the wing roof portion 13a are separated by the waterproof layer 73. It is possible to ensure water tightness.

  Therefore, the water stop performance between the engaging plate 33 and the wing roof portion 13a can be remarkably improved, and water can be reliably prevented from entering between the engaging plate 33 and the wing roof portion 13a.

  For example, when the wing 13a is wet due to rain or the like, as shown in FIG. 16, when the wing 13 is rotated upward so that the wing 13 is inclined, water droplets attached to the wing roof 13a are inclined. Since it flows downward along the wing roof portion 13a, a large amount of water tends to flow between the engaging plate 33 and the wing roof portion 13a that are located below the wing roof portion 13a (in FIG. 17A). (See arrow D1).

  Even in such a case, the water blocking layer 73 interposed between the engaging plate 33 and the wing roof portion 13a reliably prevents water from entering between the engaging plate 33 and the wing roof portion 13a. be able to.

  In addition, as shown by an arrow D2 in FIG. 17A, in the unlikely event that water has entered the waterproof structure 71 of the box-type cargo bed from the outside to the inside through the space between the engaged portion 23 and the engaging portion 24. In such a case, it is assumed that the infiltrated water further flows through the plate main body 34 to the boundary portion 14 side.

  However, in the waterproof structure 71 of the box-type cargo bed of the third embodiment, since the auxiliary waterproof sheet 72 is disposed on the lower side of the waterproof sheet 22 so as to cover the boundary portion 14, the auxiliary waterproof sheet is provided. 72, it is possible to prevent water that has entered the lower portion of the waterproof sheet 22 from further entering the boundary portion 14 (see arrow D3 in FIG. 17A).

  Furthermore, as shown by an arrow D4 in FIG. 17B, water that has entered the inside of the waterproof structure 71 enters the boundary portion 14 through a bolt hole 37 formed in the plate main body 34 so that the bolt 35 can be inserted. Even if it is going to do, since the watertightness is ensured by the water stop layer 73, the bolt hole 37 can also prevent the penetration | invasion of the water through the bolt hole 37 (it expanded and showed a part of FIG.17 (b)). (See arrow D4 in the figure).

  Accordingly, the waterproof structure 71 of the box-type carrier is installed on the upper surface of the box-type carrier 11 for a long period of time and may be exposed to rain and wind. Even in such an installation situation, as described above. Even if water tries to enter from any route (arrows D1 to D4), it can be surely prevented.

  Further, the waterproof structure 71 of the box-type cargo bed can be easily replaced even in the replacement of the waterproof sheet 22 and the auxiliary waterproof sheet 72 even by an amateur who does not have specialized technology. Since spots do not occur as in the case of sealing with a material or reinforcing with a tape, it is possible to obtain a good water stop performance with good appearance.

For example, as described above, the waterproof sheet 22 can be easily and easily replaced by engaging / disengaging the engaging portion 24 and the engaged portion 23.
On the other hand, the auxiliary waterproof sheet 72 can be attached / detached easily and with good appearance by attaching / detaching the bolts 35 to / from the engaging plate 33.

  Specifically, the engagement plate 33 is fastened together with the auxiliary waterproof sheet 72 to the upper portion of the box-type cargo bed 11 with bolts 35.

  That is, when attaching the anchoring plate 33 to the wing roof portion 13a, the auxiliary waterproof sheet 72 and the waterproof sheet 73A can be set at the same time, so that the installation effort can be suppressed.

  Further, the plate main body 34 of the engagement plate 33 not only serves as a bracket for attaching the engagement plate 33 provided with the engagement portion 24 to the wing roof portion 13a, but also firmly attaches the auxiliary waterproof sheet 72 and the water stop sheet 73A. It can also be used as a pinching member for pinching with the wing roof portion 13a.

  Therefore, since the component mounting process and the number of components can be reduced, the mounting labor and cost can be suppressed.

Further, the waterproof structure 71 of the box-type cargo bed can be constituted by the end side waterproof structure 74 as described below.
An end portion of the auxiliary waterproof sheet 72 in the longitudinal direction forms a surplus length portion 79 protruding in the longitudinal direction with respect to the box-type loading platform 11. The extra length portion 79 is formed with slits in the longitudinal direction from the end side, so that the central flap portion 76 on the central side in the width direction and the outer flap portion on both sides of the central flap portion 76 in the width direction. 75.

  In addition, since the edge part of the longitudinal direction of the waterproof sheet 22 is the same structure as the edge part side waterproof structure 62 mentioned above, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

Here, since the auxiliary waterproof sheet 72 is provided below the waterproof sheet 22, the extra length portion 79, the central side flap portion 76, and the outer side flap portion 75 of the auxiliary waterproof sheet 72 are respectively provided as the lower extra length portion 79 and the lower center. The side flap portion 76 and the lower outer flap portion 75 are set.
The lower surplus length portion 79 is formed without overlapping the separate sheet-like member 63 like the surplus length portion 69 of the waterproof sheet 22.

  As described above, in the state where the waterproof sheet 22 and the auxiliary waterproof sheet 72 are attached by the engaging plate 33 (see FIG. 18), the central flap portion 64 is downward as shown in FIG. In a state where the center side flap portion 76 is interposed between the center side flap portion 64 and the L-shaped fixed frame 100, the center side flap portion 76 is bent along the L-shape in a sectional view of the fixed frame 100.

  Then, the L-shaped bracket 67 is pressed from the outside of the center side flap portion 64 and fastened with the screw 60 to be fixed to the fixed frame 100.

  On the other hand, as shown in FIG. 18, the outer flap portion 65 has a lower outer flap between the outer flap portion 65 and the movable frame 101 as shown in FIG. With the portion 75 interposed, it is bent approximately 90 degrees downward along the cross-sectional shape of the movable frame 101.

Further, the waterproof sheet 22 and the sheet-like member 63 constituting the outer flap portion 65 can be attached so as to sandwich the end portion of the movable frame 101 and the lower outer flap portion 75 (auxiliary waterproof sheet 72).
Finally, as shown in FIG. 7, the presser plate 68 made of aluminum or the like, the waterproof sheet 22 of the outer flap portion, and the presser plate 68 in a state where the lower outer flap portion 75 is pressed against the movable frame 101. The movable frame 101 can be integrally formed by screwing.
In addition, as shown in FIG. 7, the end side waterproof structure 74 has the same external configuration as the end side waterproof structure 62 constituted only by the waterproof sheet 22 described above.

  The waterproof structure 71 of the box-type cargo bed is provided with the above-described end-side waterproof structure 74, so that water enters the inside of the box-type cargo bed 11 from the end in the longitudinal direction of the box-type cargo bed 11 through the boundary portion 14. While being able to prevent reliably, the extra length part 79 does not crawl up or relax, and can be attached with good appearance.

Further, the end side waterproof structure is not limited to the above-described configuration, and can be configured in various configurations.
For example, although not shown, the end side waterproof structure may have a configuration in which the sheet-like member 63 is fixed to the lower extra length portion 79 of the auxiliary waterproof sheet 72 similarly to the waterproof sheet 22. In the case of this configuration, similarly to the outer flap portion 65 shown in FIG. 19B, the lower outer flap portion 76 may be attached so that the movable frame 101 is sandwiched between the auxiliary waterproof sheet 72 and the sheet-like member 63. Good.

  In addition, for example, although not shown, after the waterproof sheet 22 is attached, the waterproof sheet 22 is formed so as to have an extra length portion that is not engaged with the engagement portion 24 on the end side in the longitudinal direction. You may comprise so that the front-end side opening part 24b (refer FIG. 6) of the engaging part 24 may be covered by a long part. The extra length portion of the waterproof sheet 22 may be configured to be attached to the front end portion of the engagement plate 33 as appropriate while covering the front end side opening 24b of the engagement portion 24.

  With the above configuration, it is possible to prevent water from entering the engagement space 24A through the front end side opening 24b of the engagement portion 24 when the wing vehicle 60 travels.

(Fourth embodiment)
Next, a waterproof structure 81 for a box-type cargo bed according to a fourth embodiment will be described. As shown in FIG. 20, the waterproof structure 81 of the box-type cargo bed is such that the opening direction of the opening groove 36 with respect to the engagement space 24 </ b> A in the engagement portion 24 is a boundary portion as shown in FIG. 14 is formed so as to be inclined upward by 45 degrees obliquely with respect to the outer side in the width direction of 14, that is, with respect to the outer side in the width direction of the box-type loading platform 11 (see θ in FIG. 20).
FIG. 20 is a configuration explanatory view of the waterproof structure 81 of the box-type cargo bed in the fourth embodiment shown corresponding to FIG.

  As described above, when the opening direction of the opening groove 36 in the engaging portion 24 is formed obliquely upward by 45 ° with respect to the outer side in the width direction of the box-type loading platform 11, both ends of the waterproof sheet 22 in the width direction. Even if the portion is not turned inward by about 180 °, it is easy to make the attached portion 23 to the engaging portion 24 in a state where the end portion of the connecting piece 27 is communicated with the opening groove 36 by only slightly bending about 135 °. Can be plugged into.

  In the case where the opening direction of the opening groove 36 with respect to the engagement space 24A in the engagement portion 24 is formed obliquely upward with respect to the outer side in the width direction of the box-type loading platform 11, it is oblique as described above. The angle is not limited to 45 ° upward, but can be set at a desired angle.

  For example, the opening direction of the opening groove 36 is preferably directed obliquely upward within a range of 30 ° to 60 ° with respect to the outer side in the width direction of the box-type loading platform 11.

(Fifth embodiment)
Next, a waterproof structure 91 for a box-type cargo bed according to a fifth embodiment will be described. The waterproof structure 91 for the box-type cargo bed according to the fifth embodiment prevents the water from entering the engagement space 24A through the front end side opening 24b in the longitudinal direction of the engagement portion 24 to which the engagement portion 23 is engaged. The front end portion of the wearing portion 24 is configured with a waterproof measure.

Specifically, as shown in FIG. 21, the waterproof structure 91 of the box-type cargo bed has the engaging portion 44 protruding from the front wall 15 of the box-type cargo bed 11 obliquely downward to the front in the longitudinal direction. It can be formed in a rail shape.
In addition, FIG. 21 is a configuration explanatory view showing a partially enlarged cross-sectional view of the configuration of the engaging portion to which waterproof measures are taken.

  With the above configuration, the opening direction of the front end side opening 44b of the engaging portion 44 can be directed in a direction that avoids the direction in which rainwater falls, and therefore, particularly when the wing vehicle 60 travels. It is possible to prevent rainwater from entering from the front end side opening 44b. Since the core member 26 in the engaged portion 23 is flexible, when the engaged portion 23 is inserted into the engaging portion 44, the front end portion 44a is inclined to the engaging portion 44 having the inclined shape as described above. Also, it can be smoothly inserted and attached.

(Sixth embodiment)
Next, a waterproof structure 101 for a box-type cargo bed according to a sixth embodiment will be described. As shown in FIG. 22, the waterproof structure 101 of the box-type cargo bed of the sixth embodiment relaxes the wind resistance on the outer side portion in the width direction of the attached waterproof sheet 22 on the upper surface portion 11 </ b> A of the box-type cargo bed 11. A wind guide member 51 is provided.
FIG. 22 is a configuration explanatory view showing a cross section of the waterproof structure 101 of the box-type cargo bed provided with the air guide member 51.

  The air guide member 51 includes an inclined surface on the outer side in the width direction of the upper surface portion 11A of the box-type loading platform 11, and the inclined surface increases in the width direction of the upper surface portion 11A of the box-shaped loading platform 11 as it proceeds from the lower side to the upper side. It is formed in a shape inclined from the outside to the inside.

  By the said structure, especially the resistance which generate | occur | produces when the wind sprayed from the edge part of the waterproof sheet 22 or the side of the engaging part 24 collides can be relieved. The air guide member 51 may be formed of a plate-like elastic body that can be elastically deformed so as not to obstruct the attachment and detachment of the waterproof sheet 22, or with respect to the upper surface portion 11 </ b> A of the box-type loading platform 11. You may form so that attachment or detachment is possible.

  Further, as described above, the engaging portion 24 is not limited to the circular shape in cross section having the opening groove 36, but may be formed in a rectangular shape in cross section, an inverted bell shape, or the like. Further, in the engagement space 24A, between the engagement portion 24 and the engaged portion 23, a filler is interposed between the engagement portion 24 and the engaged portion 23 in order to prevent positional displacement in the longitudinal direction. It may be configured to include a stopper member such as a bolt or a screw that is filled or protruded into the engagement space to be pressed against the engagement portion 23.

Further, in the correspondence between the above-described embodiment and the configuration of the present invention, the upper surface portion 11A of the box-type cargo bed 11 of this embodiment corresponds to the upper part of the box-type cargo bed of the present invention.
Wing 13 corresponds to the movable part,
"The form in which the entire circumferential direction of the core material 26 is wrapped with the connecting piece 27 in close contact with the core material 26", or the stopper member corresponds to the positional displacement prevention structure,
“To the outside in the width direction of the box-type loading platform 11” corresponds to “to the outside in the width direction of the boundary portion”
The engagement plate 33 corresponds to the engagement attachment member,
The plate body 34 corresponds to the mounting part,
The bolt 35 corresponds to the fastening means,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

DESCRIPTION OF SYMBOLS 10,61,71,81,91,101 ... Waterproof structure of box type loading platform 11 ... Box type loading platform 11A ... Upper surface part of box type loading platform 12 ... Loading platform main body 13 ... Wing 14 ... Boundary part of loading platform main body and wing DESCRIPTION OF SYMBOLS 22 ... Waterproof sheet 23 ... Engagement part 24, 44 ... Engagement part 24A ... Engagement space 26 ... Core material 27 ... Connecting piece 33 ... Engagement plate 34 ... Plate main-body part 35 ... Bolt 36 ... Opening groove 62, 74 ... end side waterproof structure 64 ... central side flap part 65 ... outer side flap part 73 ... water blocking layer

Claims (9)

In the upper part of a box-type cargo bed composed of a cargo bed main body and a movable part that is movable openably and closably with respect to the cargo bed main body, the inside of the box-type cargo bed from the boundary between the cargo bed main body and the movable part A waterproof structure of a box-type carrier that prevents water from entering
A waterproof sheet covering outside the box-type cargo bed and covering the boundary portion;
The engagement portion is disposed in the longitudinal direction of the boundary portion for engaging the engagement portion provided at the end portion of the waterproof sheet,
The engaging part is
It is formed in a hollow shape having an open groove that communicates the inner engagement space and the outside,
The attached part is
A waterproof structure for a box-type cargo bed comprising a core material engaged with the engagement portion and a connecting piece that wraps the core material and is connected to an end portion of the waterproof sheet. The connecting piece
The waterproof structure for a box-type cargo bed according to claim 1, wherein both sides of the waterproof sheet are sandwiched and attached to end portions of the waterproof sheet. An opening direction of the opening groove with respect to the engagement space in the engagement portion,
The waterproof structure for a box-type cargo bed according to claim 1 or 2, wherein the waterproof structure is formed obliquely upward with respect to the outside in the width direction of the boundary portion. The engaging part is
The core member together with the connecting piece is inserted into the engagement space in the longitudinal direction to have an insertion engagement structure that engages with the engagement portion,
The opening groove,
The waterproof structure for a box-type cargo bed according to any one of claims 1 to 3, wherein the waterproofing structure is formed with a groove width that allows insertion of the connecting piece and does not allow passage of the core material. Opposing portions of the connecting piece and the core material
The waterproof structure for a box-type carrier according to any one of claims 1 to 4, wherein the waterproof structure is configured to prevent a positional shift between the connecting piece and the core member in the longitudinal direction. At least one end of the waterproof sheet in the longitudinal direction constitutes an end waterproof structure,
The end waterproof structure includes a central flap portion formed on the inner side in the width direction, and an outer flap portion formed on the outer side in the width direction,
Attach the central flap part to the cargo bed body part in a suspended state,
The waterproof structure for a box-type cargo bed according to any one of claims 1 to 5, wherein the outer flap portion is attached to the movable portion. Auxiliary waterproof sheet for assisting the waterproof sheet is provided on the lower side of the waterproof sheet in an arrangement covering the boundary portion,
An engaging attachment member is constituted by the engaging portion for engaging the engaged portion provided at the end of the waterproof sheet, and the attaching portion attached to the upper portion of the box-type cargo bed,
The engaging member is provided on both outer sides with respect to the width direction of the boundary portion in the upper part of the box-type loading platform,
The above auxiliary tarpaulin
The waterproof structure for a box-type cargo bed according to any one of claims 1 to 6, wherein the waterproof structure is interposed between an upper portion of the box-type cargo bed and the attachment portion and is sandwiched between the upper portion of the box-type cargo bed and the attachment portion. The waterproof structure for a box-type cargo bed according to claim 7, wherein a water blocking layer is formed between an upper portion of the box-type cargo bed and the mounting portion. The waterproof structure for a box-type cargo bed according to claim 7 or 8, wherein the engaging member is fastened together with the auxiliary waterproof sheet to the upper part of the box-type cargo bed by fastening means.

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