JP5851702B2 - Junction structure between structures of transportation vehicles and transportation vehicles - Google Patents

Description

  The present invention relates to a joining structure of structures of a transportation vehicle configured by joining a plurality of structures.

  Generally, the structure of a transportation vehicle is roughly classified into a hexahedral structure including a floor structure and a roof structure along the horizontal direction, and six structures including two side structures and two wife structures along the vertical direction (for example, the following patents). References 1 and 2).

  Conventionally, welding joining (for example, refer to the following Patent Document 1) has been taken as a joining structure between structures. Moreover, as another joining structure, joining with a bolt and a nut (for example, refer to Patent Documents 2 and 3 below) has been taken. In the joining with the bolt and nut, by tightening the nut to the screw portion of the bolt, the force acting in the axial direction of the bolt is supported by the tensile strength or compressive strength of the bolt, and is orthogonal to the axial direction of the bolt. The force acting in two directions is supported mainly by the shear strength of the bolt.

JP-A-5-4579 Japanese Utility Model Publication No. 48-64910 JP 2004-189013 A

By the way, in welding joining, since the structure contracts and deforms due to heat, the interior member has to be attached after welding the structure. However, in the work after joining the structures, the work space is limited to the inside of the structure, and it becomes necessary to work in an unreasonable posture. Also, with welding joints, field work is difficult due to equipment limitations and weather restrictions, and transporting to the site after joining at the factory results in an increase in transportation costs. It was.
On the other hand, in the joining by the bolt and the nut as in Patent Documents 2 and 3, the bonding strength is obtained by the tensile strength or the compressive strength of the bolt against the force acting in the axial direction of the bolt. In addition, for a force acting in two directions perpendicular to the axial direction of the bolt, the coupling strength is obtained mainly by the shear strength of the bolt. For this reason, in order to obtain high bond strength, it is necessary to enlarge the cross-sectional area of the shaft portion of the bolt and then tighten it with a nut to be joined to the bolt. There was also a problem with the standard. In addition, in joining with bolts and nuts, it is necessary to further increase the hole through which the bolt is inserted, the bolt head, and the nut with respect to the effective sectional area in terms of strength, and the necessary strength can be obtained in a limited joining space. There was a limit to the size.

  In order to solve the above-described problems in the prior art, the present invention provides a joining structure of transportation vehicle structures capable of improving joining strength at the joining portion while allowing joining in a minimum space. It is intended.

In order to achieve the above object, the present invention employs the following means.
In other words, the structure for joining traffic vehicle structures according to the present invention is a structure for joining traffic vehicle structures formed by joining a plurality of structures, and is formed in a concave shape extending to one structure. The groove is formed so that the width on the back side with respect to the opening position is increased, and is extended to the other structure, and is fitted to the groove and extends along the extending direction. An end face groove is formed at the tip, and by changing the width of the end face groove, a convex strip that can elastically change the outer width dimension, and the end face groove are fitted into the end face groove. Pressing means for elastically expanding the outer width of the strip and pressing the outer surface of the convex portion against the inner surface of the concave groove , and the pressing means elastically deforms the convex portion to widen the width. A fitting portion fitted into the end surface groove of the ridge, and the fitting And having a fixing portion for fixing the parts with respect to the groove portion.

In this configuration, in addition to the frictional force generated between the concave groove portion and the convex strip portion, the concave groove portion and the convex strip portion are engaged with each other with respect to the force in the direction in which the concave groove portion and the convex strip portion are fitted. The bond strength can be obtained also by the restraining force acting by combining. Here, by pressing the outer surface of the ridge portion against the inner surface of the groove portion by the pressing means, the above-described frictional force and restraining force can be effectively exhibited to obtain high bonding strength.
In addition, when the force is in one direction out of two directions orthogonal to the fitting direction and corresponds to the width direction of the groove portion, the groove portion and the ridge portion are engaged with each other. The bond strength can be obtained by the shear strength of the members constituting each of the groove portion and the ridge portion.
For the force in the other direction out of the two directions orthogonal to the fitting direction and in the direction in which the recessed groove portion and the protruding strip portion are extended, the frictional force generated between the recessed groove portion and the protruding strip portion is caused. Bonding strength can be obtained. Here, by pressing the outer surface of the ridge portion against the inner surface of the groove portion by the pressing means, it is possible to effectively exert the above frictional force and obtain a high bonding strength.
Moreover, since the joining structure is formed by simple work, field work is possible.

  In this configuration, the fitting portion is inserted into the end surface groove of the ridge portion, and the ridge portion is elastically deformed so as to widen the groove width. The outer surface of the portion is pressed against the inner surface of the recessed groove portion. In addition, since the fitting portion is fixed to the concave groove portion by the fixing portion, when the concave groove portion and the ridge portion are fitted to exert a binding force, the repulsive force causes the fitting portion to move from the end surface groove. It is possible to prevent the strength of pulling out and pushing down and reducing the bonding strength.

  Moreover, in the joining structure of the structures of the transportation vehicle, the fitting portion is formed in a tapered shape that becomes gradually narrower toward the convex strip portion, and the fixing portion is in a direction toward the convex strip portion. And the fitting part is fixed so that the position thereof can be adjusted.

  In this configuration, since it is formed in a tapered shape that becomes gradually narrower from the base end portion toward the tip end portion, the groove width is obtained by inserting the fitting portion to the back side of the end face groove by the fixing portion. Can be gradually widened, and thereby, a force for effectively pressing the outer surface of the ridge portion against the inner surface of the groove portion can be exhibited.

  Further, in the joining structure of the transportation vehicle structures described above, the pressing means is fitted into the concave groove portion by shrinking the width of the end surface groove and elastically reducing the outer width dimension. It is comprised by the said protruding item | line part which is making the restoring force act on the inner surface of a groove part, It is characterized by the above-mentioned.

  In this configuration, by reducing the width of the end face groove and elastically reducing the outer width, the protrusion can be inserted into the groove, and the groove and the protrusion are fitted. And since the restoring force with respect to the force which shrinks elastically acts on this protruding item | line part, the force which expands the width | variety of an end surface groove and expands an external width dimension elastically arises. Therefore, since the outer surface of the ridge portion is pressed against the inner surface of the groove portion by the force to be enlarged, the ridge portion and the groove portion are firmly fitted.

  Further, in the structure for joining the structures of the transportation vehicle, a lock that opens at least at one end in the extending direction is provided on both outer surfaces that are pressed against the inner surface of the concave groove portion of the convex strip portion. A member insertion groove is formed.

  In this configuration, by inserting the lock member into the lock member insertion groove provided in the ridge and reducing the width of the end surface groove, the outer width of the ridge can be elastically reduced. . If the locking member is extracted from the locking member insertion groove in a state in which the protruding portion is inserted into the recessed groove portion, the protruding portion can apply a restoring force to elastically increase the outer width. .

  Moreover, in the joining structure of the structures of the transportation vehicle, the concave groove and the ridge are formed integrally with the corresponding structure.

  In this configuration, the concave groove portion and the convex strip portion, which are the joining members related to the joining structure, can be formed integrally with the corresponding structure, respectively, so that the manufacture of the joining member is facilitated, and the contact surface between the structure and the joining member A sufficient bonding strength can be secured.

  The transportation vehicle of the present invention includes a plurality of structures, and the plurality of structures are joined by the joint structure described above.

  In this configuration, since the transportation vehicle has the joint structure of the structures of the present invention, it can be made stronger by the joint structure.

According to the joining structure of the transportation vehicle structures according to the present invention, the joining strength at the joining location can be improved while enabling joining in a minimum space.
Moreover, according to the traffic vehicle which concerns on this invention, it can be set as a firm structure.

It is sectional drawing which looked at the traffic vehicle of 1st embodiment of this invention from the side. It is sectional drawing which looked at the transportation vehicle of 1st embodiment of this invention from the front. In the traffic vehicle of 1st embodiment of this invention, it is sectional drawing seen from the front which shows the detail of joining structure. In the traffic vehicle of 1st embodiment of this invention, it is sectional drawing seen from the front which shows the detail of the state before joining. In the traffic vehicle of the modification of 1st embodiment of this invention, it is sectional drawing seen from the front which shows the detail of joining structure. It is sectional drawing which looked at the traffic vehicle of 2nd embodiment of this invention from the front. In the traffic vehicle of 2nd embodiment of this invention, it is sectional drawing seen from the front which shows the detail of joining structure. In the traffic vehicle of 2nd embodiment of this invention, it is sectional drawing seen from the front which shows the detail of the state before joining. In the traffic vehicle of 2nd embodiment of this invention, it is sectional drawing seen from the horizontal which shows the detail of a junction structure. In the traffic vehicle of 2nd embodiment of this invention, it is a longitudinal cross-sectional view which shows the detail of a junction structure.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
1 and 2 show a traffic vehicle.
As shown in FIGS. 1 and 2, the transportation vehicle 101 includes a vehicle main body 101A, a chassis (not shown) that is provided at a lower portion of the vehicle main body 101A, supports the vehicle main body 101A, and has traveling wheels. The vehicle main body 101A of the transportation vehicle 101 is configured by assembling a plurality of structures 112 to each other. The transportation vehicle 101 according to the present embodiment extends as a structure 112 in the horizontal direction, and includes a floor structure 102 and a roof structure 103 that form a lower part and an upper part, and two sheets that form a side part that extends in the vertical direction. This is a hexahedral structure having the side structure 104 and two wife structures 105 constituting the front and rear portions. And each structure 112 is joined by the joining structure 1 of this embodiment with the other adjacent structure 112 in the edge part.

Hereinafter, the joint structure 1 of the present embodiment will be described by taking the joint portion between the floor structure 102 and the side structure 104 as an example. In the following description, the front-rear direction of the transportation vehicle 101 in the horizontal direction will be described as the Y direction, the width direction as the X direction, and the vertical direction as the Z direction.
As shown in FIG. 3, the floor structure 102 includes a main body portion 102 a, a side beam 121 extending along the Y direction at the X direction end of the main body portion 102 a, and an upper surface of the side beam 121 along the Y direction. And a concave groove portion 21 having a concave shape.
In the present embodiment, the main body portion 102a has a double skin structure including two plates 102b and 102c constituting the lower surface and the upper surface, and a rib 102d disposed between the plates. The rib 102d extends along the Y direction. The main body portion 102a and the concave groove portion 21 are integrally formed by extrusion molding along the Y direction in which the rib 102d and the concave groove portion 21 of the main body portion 102a are extended.

Further, the side structure 104 includes a main body 104a, and a protruding ridge 11 having a convex shape extending in the Y direction at the lower end of the main body 104a and fitting in the opening direction of the groove 21.
In the present embodiment, the main body portion 104a has a double skin structure including two plates 104b and 104c constituting the inner surface and the outer surface, and a rib 104d disposed between the plates. The rib 104d extends along the Y direction. The main body portion 104a and the ridge portion 11 are integrally formed by extrusion molding along the Y direction in which the rib 104d and the ridge portion 11 of the main body portion 104a are extended.

  When the structure 112 is a metal molded product such as aluminum, the groove 21 or the protrusion 11 can be formed integrally with the structure 112 corresponding to the groove 21 or the protrusion 11, respectively. Thereby, manufacture of the groove part 21 or the protruding item | line part 11 becomes easy, and the joint strength in the base end part of the groove part 21 or the protruding item | line part 11 can also be ensured enough. In addition, the recessed groove part 21 or the protruding item | line part 11 may be not only a metal product but a resin product etc., if sufficient intensity | strength can be obtained.

  And the joining structure 1 has the said groove part 21 and the protruding item | line part 11, and the pressing means 31 which presses the protruding item | line part 11 to the groove part 21. As shown in FIG.

This will be described in detail below.
The groove portion 21 is formed with a groove portion 22 of a groove portion that is concave in the X direction, and the width of the groove portion 22 is set so that the back side is larger than the opening position.
The ridge portion 11 is formed to have a width dimension that can be inserted into and removed from the groove portion 22 of the recessed groove portion 21, and the end surface groove along the Y direction extending to the distal end portion 13 that is the distal end portion. 12 is formed. And the convex part 11 is elastically deformed so that the width | variety of this end surface groove | channel becomes large in an opening position with respect to the back side by the pressing means 31, and the external width dimension is expanded, The groove part of the concave groove part 21 22 is fitted.

The pressing means 31 includes a fitting portion 32 and a bolt 33 that is a fixing portion.
The fitting portion 32 is formed in a tapered shape that gradually becomes narrower toward the end surface groove 12. And the end surface groove | channel 12 is expanded so that the fitting part 32 may be fitted, and it forms so that a width | variety may become large in an opening position with respect to the back side so that it may correspond to the taper shape of the fitting part 32. Has been.
The bolt 33 is screwed into a screw hole that penetrates the bottom surface of the concave groove portion 21, and the tip projects in the direction toward the end surface groove 12, and the fitting portion 32 is fixed to the tip. Further, the bolt 33 has a position adjustment function of adjusting the position of the fitting portion 32 along the X direction that is a direction toward the ridge portion 11 by rotating around the axis to advance and retract. A plurality of fitting portions 32 and bolts 33 are provided at a predetermined pitch in the Y direction.

Next, the assembly procedure of the joining structure 1 of this embodiment will be described.
As shown in FIG. 4, the fitting portion 32 of the pressing means 31 is retracted to the back side of the groove portion 22 of the concave groove portion 21 with a bolt 33. Then, by moving the side structure 104 relative to the floor structure 102 in the X direction, the ridge 11 is inserted through the opening of the groove 22 of the groove 21 and the fitting part 32 is inserted into the end face groove 12. .
Next, the fitting portion 32 is advanced to the back side of the end surface groove 12 by the bolt 33. Here, the fitting portion 32 is formed in a tapered shape that gradually becomes narrower toward the end surface groove 12, so that the end surface groove 12 is expanded and expanded as the bolt 33 is advanced. The part 11 elastically changes the outer width dimension.
And by inserting the fitting part 32 based on the position adjusting function of the bolt 33 to the position where the fitting part 32 is firmly fitted to the end face groove 12, the outer surface of the ridge part 11 is the concave groove part 21. This is pressed against the inner surface of the groove portion 22, whereby the joining structure 1 is configured, and the side structure 104 and the floor structure 102 are assembled.

  Here, in the case of welding joining, since welding work in a factory is required, since the structures are joined to each other and then transported to the site, transportation costs have increased. However, since the joining structure 1 is formed by a simple work and can be performed on-site, the transportation cost can be reduced compared with the case of welding joining.

  Moreover, in the joining structure 1 of this embodiment, with respect to the force in the X direction in the direction in which the groove portion 21 and the ridge portion 11 are fitted, the contact surface between the groove portion 21 and the ridge portion 11 is in the X direction. The coupling strength can be obtained by the frictional force acting on. Further, the coupling strength can be obtained also by the restraining force that acts when the concave groove portion 21 and the convex strip portion 11 are engaged with each other. Here, by pressing the outer surface of the ridge portion 11 against the inner surface of the concave groove portion 21 by the pressing means 31, the frictional force and the binding force can be effectively exhibited to obtain a high bonding strength.

  In addition, for the force in the Z direction that is one of the two directions orthogonal to the fitting direction and that corresponds to the width direction of the groove 21, the groove 21 and the ridge 11 are The coupling strength can be obtained by the shear strength generated according to the cross-sectional area along the Z direction of the members constituting the concave groove portion 21 and the convex strip portion 11 by engaging with each other.

  Further, the concave groove portion 21 and the convex portion are not affected by the force in the Y direction in the other direction of the two directions orthogonal to the fitting direction and in the direction in which the concave groove portion 21 and the convex strip portion 11 extend. Bonding strength can be obtained by the frictional force acting in the Y direction on the contact surface with the strip 11. Here, by pressing the outer surface of the ridge portion 11 against the inner surface of the concave groove portion 21 by the pressing means 31, the frictional force can be effectively exerted to obtain a high bonding strength.

  Here, when the fitting portion 32 is inserted into the end surface groove 12, the width of the end surface groove 12 is expanded, and the outer width of the tip end portion 13 of the ridge portion 11 is elastically expanded. Thereby, the ditch | groove part 21 and the protruding item | line part 11 can be made to fit reliably, and high bond strength can be obtained. In addition, since the fitting portion 32 is fixed to the concave groove portion 21 by the bolt 33, when the concave groove portion 21 and the convex strip portion 11 are fitted to exert a restraining force, the repulsive force causes the end surface groove 12 to It is possible to prevent the joint strength from being reduced due to the force with which the fitting portion 32 is extracted and pressed down.

  Moreover, since the fitting part 32 is formed in the taper shape which becomes narrow gradually toward the protruding item | line part 11, the insertion of the fitting part 32 to the end surface groove | channel 12 is easy. Since the position of the bolt 33 can be adjusted, the fitting portion 32 can be moved to a position where the fitting portion 32 is firmly fitted to the end face groove 12. And the fitting part 32 and the end surface groove | channel 12 are made to fit firmly, and thereby the force which presses the outer surface of the protruding item | line part 11 against the inner surface of the recessed groove part 21 effectively can be exhibited.

  As described above, in the bonding structure 1 according to the present embodiment, the bonding strength can be improved in any of the X direction, the Y direction, and the Z direction while allowing bonding in a minimum space, and the structures 112 are firmly connected. It becomes possible to join to.

  Then, if the structures 112 are joined to each other by the joining structure 1, the transportation vehicle 101 can be made to have a strong structure because the structure is formed by the firm joining.

  FIG. 5 shows a joint structure 1X according to a modification of the present embodiment. As shown in FIG. 5, in the joining structure 1 </ b> X of this modified example, in the pressing means 31 </ b> X, a male screw having the same direction as the bolt 33 is formed on the surface of the fitting portion 32 </ b> X. In addition, a screw groove for screwing the male screw of the fitting portion 32X is formed on the wall surface of the end surface groove 12X of the protruding portion 11X. With such a configuration, when the bolt 33 is rotated about the axis and the fitting portion 32X is advanced toward the end surface groove 12, the fitting portion 32X is screwed into the end surface groove 12X, and a convex having the end surface groove 12X. The strip portion 11X is attracted to the concave groove portion 21 to which the fitting portion 32X is fixed. For this reason, the protruding line part 11X can be more firmly fitted in the groove part 21.

(Second embodiment)
Hereinafter, the junction structure 1Y according to the second embodiment of the present invention will be described.
In this embodiment, members that are the same as those used in the above-described embodiment are assigned the same reference numerals, and descriptions thereof are omitted.

FIG. 6 shows a traffic vehicle.
As shown in FIGS. 7 and 8, in the floor structure 102, the upper surface of the side beam 121 is provided with a concave groove portion 21 </ b> Y that extends along the Y direction and opens upward in the Z direction. Yes.
Further, in the side structure 104, a projecting ridge portion 11Y extending along the Y direction and projecting downward in the Z direction is provided at the lower end portion of the main body 104aX.

  And the joining structure 1Y of this embodiment has the recessed groove part 21Y and the protruding item | line part 11Y, and the pressing means 31Y is comprised by this protruding item | line part 11Y itself so that it may mention later.

This will be described in detail below.
A groove portion 22Y of a groove portion that is concave in the Z direction is formed in the groove portion 21Y, and the width of the groove portion 22Y is set larger on the back side than the opening position.
As for the protruding item | line part 11Y, the end surface groove | channel 12Y is formed in the front-end | tip part 13Y.
Further, the outer width of the tip 13Y of the ridge 11Y is set to be larger than the width on the back side of the groove 22Y of the groove 21Y, and the ridge 11Y narrows the end groove 12Y. The outer diameter width dimension is reduced by being elastically deformed to be fitted into the groove portion 22Y of the concave groove portion 21Y. For this reason, a restoring force is generated in the convex portion 11Y, and the outer surface of the convex portion 11Y is pressed against the inner surface of the groove portion 22Y of the concave groove portion 21Y by the restoring force, that is, pressing means by the convex portion 11Y. 31Y is configured.
Further, in the protruding portion 11Y, lock member insertion grooves 14Y are formed along the Y direction so as to open to both ends in the Y direction on both outer surfaces that are pressed against the inner surface of the recessed groove portion 21Y. .

Next, the assembly procedure of the joint structure 1Y of this embodiment will be described.
First, a wire 15Y serving as a lock member is inserted into the lock member insertion groove 14Y, wound around the outer periphery of the convex strip portion 11Y, and tightened. Then, since the external width dimension of the convex strip portion 11Y is reduced elastically so as to narrow the width of the end surface groove 12Y, the convex strip portion 11Y can be inserted into the groove portion 22Y.

  Then, the ridge 11Y is inserted into the groove 22Y from the Y-direction end of the groove 21Y. Next, the wire 15Y is removed from the lock member insertion groove 14Y in a state in which the ridge 11Y is inserted into the groove 22Y. That is, the portion exposed from the Y-direction end portion of the concave groove portion 21Y is cut at the wire 15Y and pulled out from the lock member insertion groove 14Y. Thereby, the restriction | limiting of the protruding part 11Y by the number wire | line 15Y is cancelled | released, and the protruding item | line part 11Y tries to enlarge an external width dimension elastically with an own restoring force. And since the outer surface of the convex strip portion 11Y is pressed against the inner surface of the groove portion 22Y of the concave groove portion 21Y by the restoring force, the convex strip portion 11Y and the concave groove portion 21Y are firmly fitted, and the floor structure 102X and the side The structure 104X is assembled.

  In the above description, the locking member insertion groove 14Y is formed along the Y direction so as to open at both ends in the Y direction, and the number wire 15Y is inserted as the locking member. It is not limited. As the locking member, the convex strip portion can be constrained in the width direction, and as the locking member insertion groove, the locking member can be inserted, and after the convex strip portion is inserted into the concave groove portion, the convex strip portion and the concave groove portion are It is only necessary to open the lock member so that it can be pulled out at any of the end portions in the Y direction. Specifically, for example, the lock member may be a U-shaped member, and the lock member insertion groove may be formed so that the U-shaped member can be inserted and removed.

Moreover, you may implement shrink fitting as another method of applying a restoring force.
Specifically, the concave groove is heated. Then, since the concave groove portion expands, it becomes possible to insert the convex strip portion into the groove portion of the concave groove portion.
And if it cools in the state where the protruding line part was inserted in the recessed groove part, the recessed groove part contracts, so that the protruding line part is forced to be narrowed, so that the outer width dimension of the protruding line part is elastically increased. Restoring force will be generated when trying to enlarge. For this reason, the outer surface of the ridge portion 11Y presses the inner surface of the groove portion 21Y, and similarly, the ridge portion 11Y and the groove portion 21Y are firmly fitted, and the floor structure 102X and the side structure 104X are assembled. It is done.

In each of the above-described embodiments and modifications thereof, when the side structure 104 and the floor structure 102 are joined, the side structure 104 is fitted from the end of the floor structure 102. Therefore, when the side structure 104 is divided, workability is improved. .
As shown in FIGS. 9 and 10, a projecting butting portion 51 is provided at the end of the divided side structure 104 in the Y direction. The abutting part 51 of one side structure 104 and the abutting part 51 of the other adjacent side structure 104 are butted together by a clip member 52 that is a member that sandwiches both the abutting parts 51, thereby adjoining the side structure 104. Can be joined.
Further, by providing the abutting portion 51 at the end of the side structure 104 in the Y direction, the abutting portion 51 functions as a vertical beam, and the bending rigidity of the side structure 104 can be increased.

  It should be noted that the assembling procedure shown in the above-described embodiment, the various shapes and combinations of the constituent members, and the like are merely examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1, 1X, 1Y ... Joining structure 11, 11X, 11Y ... Projection part 12, 12X, 12Y ... End surface groove | channel 14Y ... Lock member insertion groove | channel 15Y ... Number wire (lock member)
21, 21 </ b> Y... Groove 31, 31 </ b> X, 31 </ b> Y ... pressing means 32 fitting part 33 bolt (fixing part)
101 ... Transportation vehicle 112 ... Structure

Claims (8)

It is a junction structure of traffic vehicle structures configured by joining a plurality of structures,
A concave groove formed on one structure and formed in a concave shape so that the width on the back side with respect to the opening position is increased;
Extending to the other structure, fitted into the concave groove, and formed with an end face groove at the tip along the extending direction, and the width of the end face groove is changed, so that elasticity Ridges capable of changing the external width dimension automatically,
A pressing means that fits into the end surface groove and elastically expands the outer width of the ridge, and presses the outer surface of the ridge against the inner surface of the groove ,
The pressing means is
A fitting portion that is fitted into the end surface groove of the convex portion so that the convex portion is elastically deformed and widened.
A joint structure for a structure of a transportation vehicle, comprising: a fixing portion that fixes the fitting portion to the concave groove portion . It is a junction structure of traffic vehicle structures configured by joining a plurality of structures,
A concave groove formed on one structure and formed in a concave shape so that the width on the back side with respect to the opening position is increased;
Extending to the other structure, fitted into the concave groove, and formed with an end face groove at the tip along the extending direction, and the width of the end face groove is changed, so that elasticity Ridges capable of changing the external width dimension automatically,
Pressing means for elastically expanding the outer width of the ridge portion and pressing the outer surface of the ridge portion against the inner surface of the groove portion;
The pressing means is
A fitting portion that is fitted into the end surface groove of the convex portion so that the convex portion is elastically deformed and widened.
A joining structure for a structure of a transportation vehicle, comprising: a fixing portion that fixes the fitting portion to the concave groove portion. The fitting portion is formed in a tapered shape that gradually becomes narrower toward the convex strip portion,
The said fixing | fixed part is fixing the said fitting part so that position adjustment is possible along the direction which goes to the said protruding item | line part, Between the structures of the traffic vehicle of Claim 1 or Claim 2 characterized by the above-mentioned. Junction structure. It is a junction structure of traffic vehicle structures configured by joining a plurality of structures,
A concave groove formed on one structure and formed in a concave shape so that the width on the back side with respect to the opening position is increased;
Extending to the other structure, fitted into the concave groove, and formed with an end face groove at the tip along the extending direction, and the width of the end face groove is changed, so that elasticity Ridges capable of changing the external width dimension automatically,
A pressing means that fits into the end surface groove and elastically expands the outer width of the ridge, and presses the outer surface of the ridge against the inner surface of the groove ,
The pressing means is
Consists of the convex strips that cause a restoring force to act on the inner surface of the concave groove portion by shrinking the width of the end face groove and elastically reducing the outer width dimension and fitting into the concave groove portion. bonding structure for assembly between transport vehicle, characterized in that it is. It is a junction structure of traffic vehicle structures configured by joining a plurality of structures,
A concave groove formed on one structure and formed in a concave shape so that the width on the back side with respect to the opening position is increased;
Extending to the other structure, fitted into the concave groove, and formed with an end face groove at the tip along the extending direction, and the width of the end face groove is changed, so that elasticity Ridges capable of changing the external width dimension automatically,
Pressing means for elastically expanding the outer width of the ridge portion and pressing the outer surface of the ridge portion against the inner surface of the groove portion;
The pressing means is
Consists of the convex strips that cause a restoring force to act on the inner surface of the concave groove portion by shrinking the width of the end face groove and elastically reducing the outer width dimension and fitting into the concave groove portion. This is a joint structure between transportation vehicle structures. Locking member insertion grooves that open at least at one end in the extending direction are formed on both outer surfaces that are pressed against the inner surface of the concave groove portion of the convex strip portion. The junction structure of the structures of the traffic vehicle according to claim 4 or 5 . The junction structure of traffic vehicle structures according to any one of claims 1 to 6 , wherein the concave groove portion and the protruding line portion are formed integrally with the corresponding structure. A transportation vehicle comprising a plurality of structures, wherein the plurality of structures are joined by the joint structure according to any one of claims 1 to 7 .

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