JP6080690B2 - Lorry box - Google Patents

Description

  The present invention relates to a box body of a freight car that is provided in a freight car such as a van or a wing and forms a luggage compartment.

  The lorry has a chassis provided with tires. The chassis is mounted with a body of a cargo handling part composed of a loading platform and a luggage compartment and a cab having a driver's seat, and the body part forming the luggage compartment is called a box. The box body has a front wall provided at the front end of the floor plate, that is, the bottom wall, and a rear wall provided at the rear end of the bottom wall, and the ceiling wall and the left and right walls are provided between the front wall and the rear wall. Side walls are provided. By these wall bodies, the box body has an overall rectangular parallelepiped shape, and a luggage compartment is formed inside. On the rear wall or side wall, an opening / closing door for carrying the baggage into and out of the baggage compartment is provided.

  A box body in which a ceiling wall and left and right side walls are fastened to a front wall and a rear wall is called a van body. On the other hand, a box having an openable wing is called a wing body. The wing is a structure in which a part of the ceiling wall and a part of the side wall are integrated in an L-shaped cross section, and is attached to a support beam provided between the front wall and the rear wall so as to be freely opened and closed. . A wall body such as a side wall constituting the box has an inner panel, an outer panel, and a core material, and the strength of the wall body is enhanced by bonding the core material to the inner panel and the outer panel. .

  In a freight car for transporting a refrigerated product or a frozen product, in order to keep the luggage compartment cool, the box is formed of a panel material having a heat insulating structure, and in that case, a heat insulating material is used as a core material. For example, Patent Document 1 describes a heat insulating box for a refrigeration vehicle and a freezer car. A heat insulating panel constituting the box includes a heat insulating layer, an outer surface plate provided outside the heat insulating layer, and an inner side of the heat insulating layer. And a sandwich panel. Patent Document 2 describes a refrigerator car having a side wall portion provided with a heat insulating material between an outer surface plate and an inner surface plate. The outer surface plate is formed by a plurality of outer surface plate forming pieces, Between the face plate forming pieces, a strain absorbing portion that absorbs strain in the front-rear direction is provided.

Japanese Patent No. 2807187 Japanese Patent No. 4598661

  Conventionally, wall bodies such as front and rear, left and right, and ceiling that constitute a box body of a truck are formed by plate members that are integrally connected to each other as described in Patent Document 1. For this reason, in order to manufacture a box body of a lorry, after manufacturing a wall body such as a side wall having a length dimension in an assembled state, each wall body is assembled. However, since a large-scale facility is required for bonding the outer plate and the sandwich panel to the heat insulating layer as the core material, the wall cannot be easily manufactured.

  Further, as described in Patent Document 2, even when the outer surface plate is formed by a plurality of outer surface forming pieces, the outer surface plate and the inner surface plate corresponding to the entire length of the box are arranged inside. By filling the heat insulating material for filling, a wall body as a side wall is formed. For this reason, in order to manufacture a box, it is necessary to manufacture beforehand the wall which has the length dimension of the assembled state. When manufacturing a wall body, since a large-scale facility is required to incorporate a heat insulating material as a core material between the inner surface plate and the outer surface plate, the wall body cannot be easily manufactured.

  An object of the present invention is to enable easy manufacture of a wall body such as a side wall constituting a box.

A box body of a truck according to the present invention includes a front wall provided at a front end portion of a bottom wall, a rear wall provided at a rear end portion of the bottom wall, and a ceiling wall disposed between the front wall and the rear wall. A box body of a cargo truck provided on a chassis of a truck with left and right side walls, having an inner panel and an outer panel joined to the inner panel via a core, and joined to each other A plurality of wall members forming at least the left and right side walls, an inner abutting piece formed by bending a side part of the inner panel, and a side part of the outer panel being bent. An outer abutting piece that forms an abutting surface of the wall member together with the abutting piece, and a coupling groove that is exposed between the inner abutting piece and an opening edge of the outer abutting piece and provided in the core member; The connection of the two wall members to be abutted Is bonded is inserted within, have a, a connecting member for joining said wall member to each other, the connecting member includes a base portion that is inserted into the coupling groove, on the inner surface of the inner panel from the base portion An inner leg extending toward the outer panel and an outer leg extending from the base toward the outer surface of the outer panel, and an adhesive layer is provided between the base and the inner surface of the connecting groove, the inner leg And an adhesive layer is provided between the outer leg and the abutment surface, and an adhesive accommodating recess is provided on both the inner and outer surfaces of the base so as to approach the inner leg and the outer leg, and the adhesive accommodating recess. A caulking material is filled in the gap formed between the inner leg portion and the abutting surface and the gap formed between the outer leg portion and the abutting surface. Fill.

At least the side walls of the wall for constituting the box of the truck are formed by joining a plurality of wall members, and each wall member is bonded to the outer panel and the inner panel. And a core material. After manufacturing the wall member, the side wall is assembled by abutting a plurality of wall members on the abutment surface, so that the manufacturing facility for the wall member can be reduced in size, and it is easier to use the small manufacturing facility. A wall body member can be manufactured. A connecting member is inserted into a connecting groove formed in the wall member so as to couple a plurality of wall members . The connecting member has a base, an inner leg, and an outer leg, and the base and the connecting groove Adhesive layer is provided between the inner surface, inner and outer legs, and the abutting surface. Adhesive layer is placed on the inner and outer legs on both the inner and outer surfaces of the base. A recess is provided, the adhesive containing recess is filled with an adhesive lump, a gap formed between the inner leg and the abutment surface, and a gap formed between the outer leg and the abutment surface Since the caulking material is filled , the strength as the side wall can be held by the plurality of wall members.

It is a perspective view which shows the external appearance of the lorry provided with the van body. It is a perspective view which shows the external appearance of the lorry provided with the wing body. It is a disassembled perspective view which shows the several wall body member which comprises the box of a truck. (A) is sectional drawing which shows a part of two wall body members before being abutted, (B) is sectional drawing which shows a part of two wall body members in the abutted state. (A) is sectional drawing which shows a part of modification of two wall-body members before abutting, (B) shows a part of modification of two wall-body members in the state of abutting It is sectional drawing. (A) is sectional drawing which shows a part of other modification of two wall body members before being abutted, (B) is another modification of two wall body members in the abutted state It is sectional drawing which shows a part.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. A lorry 10 a shown in FIG. 1 has a loading platform provided with wheels 11, that is, a chassis 12, and a cab 13 having a driver's seat is mounted on the front side of the chassis 12. On the rear side of the chassis 12, a body forming a luggage compartment 14, that is, a box body 15 is mounted, and the box body 15 is a van body.

  The box 15 has a bottom wall 21, a front wall 22 provided at the front end portion, and a rear wall 23 provided at the rear end portion of the bottom wall 21. A ceiling wall 24 is provided between the upper end portion of the front wall 22 and the upper end portion of the rear wall 23, and left and right side walls 25 are provided between the left and right end portions of the front wall 22 and the left and right end portions of the rear wall 23. Each is fastened and integrated. The rear wall 23 is formed by a frame body 23a and an open / close door 23b provided on the rear wall 23 through a hinge portion so as to be openable and closable. 1 is formed by the bottom wall 21, the front wall 22, the rear wall 23, the ceiling wall 24, and the left and right side walls 25 as wall bodies.

  In the truck 10b shown in FIG. 2, the box 15 is a wing body, and has two wings 26 that can be opened and closed. Each wing 26 has a structure in which a part 24a of the ceiling wall and a part 25a of the side wall are integrated, and can be freely opened and closed by a support beam (not shown) provided between the front wall 22 and the rear wall 23. It is installed. The box 15 has left and right side walls 25, and each side wall 25 is a turn plate that can be opened and closed by a hinge portion. In this way, the box 15 constituting the wing body has a side wall formed by the side wall portion 25 a of the wing 26 and the side wall 25 as a turn plate. It is formed.

  In the illustrated truck 10a, 10b, left and right of the bottom wall 21, the front and rear walls 22, 23, the ceiling wall 24, and the left and right side walls 25 that constitute the box body 15 as a van body and a wing body. The side wall 25 is formed by joining a plurality of wall members 30 to each other.

  FIG. 3 is an exploded perspective view showing a plurality of wall members 30, and FIG. 4 is a cross-sectional view showing a part of the two wall members 30.

  As shown in FIGS. 3 and 4, the wall member 30 includes a quadrilateral inner panel 31 and an outer panel 32. A quadrilateral core member 33 is disposed between these two panels, and the inner panel 31 is joined to the outer panel 32 via the core member 33 by an adhesive. The inner panel 31 and the outer panel 32 are formed of a metal such as iron or aluminum, and the core member 33 is formed of a heat insulating material such as styrene or urethane. In FIG. 3, the inner panel 31 and the outer panel 32 are shown one by one, and the inner panel 31 and the outer panel 32 that are joined to the other core members 33 are not shown.

  As shown in FIG. 3 and FIG. 4A, the inner panel 31 is provided with an inner abutting piece 31a by bending its side portion in a direction substantially perpendicular to the central portion. Similarly, the outer panel 32 is provided with an outer abutting piece 32a by bending the side portion thereof in a direction substantially perpendicular to the central portion. When the inner panel 31 and the outer panel 32 are joined to both the inner and outer surfaces of the core member 33, as shown in FIG. 4 (A), the inner abutting piece 31a and the outer abutting piece 32a are attached to the side surface of the wall member 30. The abutting surface 34 is formed. When the side wall 25 is formed by joining a plurality of wall members 30, the abutting surfaces 34 of the adjacent wall members 30 are abutted against each other.

  The width dimension of the inner abutting piece 31 a and the outer abutting piece 32 a is about one third of the thickness dimension of the wall member 30. A connecting groove 37 is provided on the abutting side surface of the core member 33 so as to be exposed between the opening edge 35 of the inner abutting piece 31a and the opening edge 36 of the outer abutting piece 32a. When the two wall members 30 are abutted against each other with the abutting surfaces 34, a space is formed by the connecting grooves 37 of both wall members 30. A rod-like connecting member 38 is inserted into the connecting groove 37 forming the space, and the plurality of wall members 30 are connected by the connecting member 38 inserted into the connecting groove 37. The connecting member 38 has a length corresponding to the length dimension of the core member 33 and is made of resin, metal, or the like.

  As described above, since the side wall 25 is formed by the plurality of wall members 30, the wall member 30 is extremely downsized as compared with the side walls 25. For example, when the side wall 25 is formed by the six wall body members 30, the wall body member 30 has a size that is 1/6 of the side wall 25. Thereby, the installation which adhere | attaches the inner side panel 31 and the outer side panel 32 on both the inner and outer surfaces of the core material 33 can be reduced in size, and the manufacture can be performed easily.

  FIG. 4A shows a part of the two wall members 30 before being abutted, and before the abutment, the adhesive 39 is applied to the connecting grooves 37 of both wall members 30. Is done. The adhesive 39 is applied in a streak shape from one end side to the other end side of the connecting groove 37. Under this state, when the connecting member 38 is inserted into the connecting groove 37 so that the abutting surfaces 34 of both wall members 30 are in contact with each other, as shown in FIG. An adhesive layer 39 a is formed between the inner surface of the connecting groove 37 and the abutting surface 34. By this adhesive layer 39a, the core members 33 of the two wall members 30 adjacent to each other are bonded and fixed to each other, the inner butting pieces 31a are bonded and fixed to each other, and the outer butting pieces 32a are bonded and fixed to each other. Is done. Thereby, the intensity | strength of the side wall 25 which consists of the several wall body member 30 is raised.

  As shown in FIG. 4B, a sufficient amount of the adhesive 39 is sufficient to allow the adhesive 39 to leak out of the inner panel 31 and the outer panel 32 when the connecting member 38 is inserted into the connecting groove 37. And applied to the connecting grooves 37 of both wall members 30. Thereby, the adhesive layer 39a is formed in the above-mentioned part. When the connecting member 38 is inserted into the connecting groove 37, the adhesive 39 leaked to the outside of the inner panel 31 and the outer panel 32 is wiped off.

  FIG. 5 is a cross-sectional view showing a part of a wall member 30 which is a modified example. The wall member 30 shown in FIG. 5 is different from the connecting member 38 shown in FIGS. 3 and 4 in the shape of the connecting member 38. The shapes of the inner panel 31, the outer panel 32, and the core member 33 are the same as those described above. In FIG. 5, members that are the same as those shown in FIG.

  The connecting member 38 shown in FIG. 5 has a base 41 having substantially the same shape as the connecting member 38 shown in FIG. The base portion 41 is provided with an inner leg portion 42 extending from one surface side toward the inner surface of the inner panel 31, and an outer leg portion 43 extending from the other surface side of the base portion 41 toward the outer surface of the outer panel 32. Is provided on the base 41.

  As shown in FIG. 5A, before the wall member 30 is abutted, an adhesive 39 is applied to the connecting grooves 37 of both wall members 30. Under this state, when the base 41 of the connecting member 38 is inserted into the connecting groove 37 so that the abutting surfaces 34 of both wall members 30 are in contact with each other, as shown in FIG. An adhesive layer 39 a is formed between 41 and the inner surface of the connecting groove 37, between the inner leg portion 42 and the abutting surface 34, and between the outer leg portion 43 and the abutting surface 34. By this adhesive layer 39a, the core members 33 of the two wall members 30 adjacent to each other are bonded and fixed to each other via the base 41, and the inner abutting piece 31a is bonded and fixed to each other via the inner leg 42. The outer abutting pieces 32a are bonded and fixed to each other via the outer leg portions 43. Thereby, the intensity | strength of the side wall 25 which consists of the several wall body member 30 is raised.

  As shown in FIG. 5, a covering portion 44 that covers the abutting surface 34 is provided at the protruding end portion of the outer leg portion 43. Similarly, a covering portion 45 that covers the abutting surface 34 is provided at the protruding end portion of the inner leg portion 42. As shown in FIG. 5B, when the base portion 41 is inserted into the connecting groove 37, an adhesive layer 39 a is also provided on the inner surfaces of the covering portions 44 and 45. Each of the covering portions 44 and 45 has a circular arc surface, and the width dimension is set to be larger than the width of the inner leg portion 42 and the outer leg portion 43. As described above, when the covering portions 44 and 45 are provided, not only the appearance quality of the inner and outer surfaces as the side wall 25 is improved, but also the area of the adhesive layer can be increased and the inside of the abutting surface 34 can be increased. It is possible to reliably prevent moisture and the like from entering. Considering only prevention of moisture ingress, it is not necessary to provide the covering portion 44 only at the protruding end portion of the outer leg portion 43 and to provide the covering portion 45 at the protruding end portion of the inner leg portion 42.

  FIG. 6 is a cross-sectional view showing a part of a wall member 30 which is another modified example. 6 is different from the connecting member 38 shown in FIG. 5 in the shape of the connecting member 38. The wall member 30 shown in FIG. The shapes of the inner panel 31, the outer panel 32, and the core member 33 are the same as those described above. In FIG. 6, members that are the same as those shown in FIGS. 4 and 5 are given the same reference numerals. .

  The connecting member 38 shown in FIG. 6 is provided with a base 41, an inner leg 42 and an outer leg 43 on the base 41, similarly to the connecting member 38 shown in FIG. 5. However, unlike the connecting member 38 shown in FIG. 5, the dimension between the protruding end surface of the inner leg portion 42 and the protruding end surface of the outer leg portion 43 of the connecting member 38 shown in FIG. The covering portions 44 and 45 are not provided on the leg portions 42 and 43, respectively. On the other hand, adhesive accommodating recesses 46 and 47 are provided on both the inner and outer surfaces of the base 41 so as to approach the inner leg 42 and the outer leg 43. Further, the horizontal length of the base 41 in FIG. 6 is set shorter than the total length of the two connecting grooves 37 of the two wall members 30 to be abutted.

As shown in FIG. 6A, before the wall member 30 is abutted, an adhesive 39 is applied to the connecting grooves 37 of both wall members 30 as described above. . Under this condition, if you the abutment surface 34 of both of the wall member 30 so as to contact to insert a base portion 41 of the connecting member 38 to the connecting groove 37, as shown in FIG. 6 (B), the base 41 between the inner and outer surfaces of 41 and the inner surfaces of the connecting grooves 37 facing each other, between the inner leg portion 42 and the abutting surface 34, and between the outer leg portion 43 and the abutting surface 34. Layer 39a is formed. Further, a large amount of adhesive 39 is arranged in a block shape between the base 41 and the bottom surface of the connecting groove 37 and in the adhesive accommodating recesses 46 and 47, thereby forming an adhesive lump 39b.

  In the case shown in FIG. 6, when the base portion 41 of the connecting member 38 is inserted into the connecting groove 37 so that the abutting surfaces 34 of both wall members 30 are in contact with each other, both the inner surface of the inner leg portion 42 and both of the abutting portions are inserted. A gap is generated between the contact surfaces 34 and between the outer surface of the outer leg portion 43 and both the contact surfaces 34. A caulking material 48 is embedded in the gap. Thereby, the gap corresponding to the thickness of the inner leg portion 42 and the outer leg portion 43 is finished finely by the caulking material 48. As the caulking material 48, a silicon, urethane, or acrylic material is used.

  In this way, the core material 33 of the two wall members 30 adjacent to each other is bonded and fixed to each other via the base 41 by the adhesive layer 39a and the adhesive lump 39b. The strength of the side wall 25 is further increased. Further, the abutting portion is finished by the caulking material 48.

  When the side wall 25 shown in FIG. 1 is formed by joining six wall body members 30 shown in FIGS. 4 to 6, the outer periphery of the six wall body members 30 joined is A frame material having a U-shaped cross section is attached. Similarly, when the side wall 25 shown in FIG. 2 is formed by joining six wall members 30, a similar frame member is attached to the outer periphery of the joined wall members 30.

  When a wall body such as the side wall 25 is formed by the wall body member 30 provided with the core member 33 made of a heat insulating material, the box body 15 can be applied to a lorry for transporting a refrigerated product or a frozen product. However, the material of the core material 33 is not limited to the heat insulating material.

  In the freight car 10a shown in FIG. 1 and the freight car 10b shown in FIG. 2, the side wall 25 is formed by abutting a plurality of wall members 30. Similarly, the bottom wall 21, the front wall 22, the open / close door 23 b constituting the rear wall 23, and the ceiling wall 24 may be formed by joining a plurality of wall members 30. Further, the wing 26 may be formed by joining a plurality of wall members 30. When each wall member constituting the box 15 is formed by connecting the wall member 30 like the bottom wall 21 and the front wall 22, each manufacturing facility can be reduced in size, The box 15 can be easily manufactured.

  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. Although the case where the present invention is applied to the wall member constituting the box 15 of the lorry shown in FIGS. 1 and 2 has been described, the present invention can also be applied to the box of other types of lorries. .

10a, 10b Lorry 11 Wheel 12 Chassis 14 Luggage compartment 15 Box 21 Bottom wall 22 Front wall 23 Rear wall 24 Ceiling wall 25 Side wall 26 Wing 30 Wall body member 31 Inner panel 31a Inner abutting piece 32 Outer panel 32a Outer abutting Piece 33 Core material 34 Abutting surface 35, 36 Open edge 37 Connection groove 38 Connection member 39 Adhesive 41 Base 42 Inner leg 43 Outer leg 44, 45 Cover 46, 47 Adhesive accommodation recess

Claims (1)

A front wall provided at a front end portion of the bottom wall; a rear wall provided at a rear end portion of the bottom wall; a ceiling wall disposed between the front wall and the rear wall; A freight car box provided in the chassis of
A plurality of wall members having an inner panel and an outer panel joined to the inner panel via a core member, and joined to each other to form at least the left and right side walls;
An inner abutting piece formed by bending a side portion of the inner panel;
An outer abutting piece formed by bending a side part of the outer panel, and forming an abutting surface of the wall member together with the inner abutting piece;
A connecting groove that is exposed between the opening edge of the inner abutting piece and the outer abutting piece and provided in the core member;
Is bonded is inserted into the coupling groove of the abutted two of said wall member, have a, a connecting member for joining said wall member to each other,
The connecting member includes a base inserted into the connecting groove, an inner leg extending from the base toward the inner surface of the inner panel, and an outer leg extending from the base toward the outer surface of the outer panel. Having an adhesive layer between the base and the inner surface of the connecting groove, and providing an adhesive layer between the inner leg and the outer leg and the abutting surface,
Provide an adhesive accommodating recess on both the inner and outer surfaces of the base to the inner leg and the outer leg, and fill the adhesive accommodating recess with the adhesive mass,
A box body of a truck that fills a gap formed between the inner leg and the abutting surface and a gap formed between the outer leg and the abutting surface with a caulking material .

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