JP2008230276A - Skeleton structure for transport machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a skeleton structure for a transport machine capable of filling powder and grains in a skeleton member without using a major device such as a vibration exciter, and applying paint in the inner peripheral surface of the skeleton member. <P>SOLUTION: This skeleton structure 10 comprises a container 13 storable in a hollow section 34 leaving a prescribed space S relative to the skeleton member 12 in a condition of storing the powder and grains 23 roughly, which contacts the inner peripheral surface 12a when the powder and grains 23 in a rough condition are filled tightly, and a clip 25 capable of retaining the container 13 while leaving the prescribed space S relative to the skeleton member 12 in a condition of storing the plurality of the powder and grains 23 roughly. The paint 35 applied to the inner peripheral surface 12a can be introduced in a clearance 46 between the inner peripheral surface of the skeleton member 12 and the container 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a skeletal structure for a transportation device including a portion where compressive stress is generated and a portion where tensile stress is generated when an impact is applied.

A transportation device such as a vehicle includes a hollow skeleton member in order to ensure rigidity. Among these hollow skeleton members, for example, a skeleton structure for a transportation device in which powders are filled inside (that is, a hollow portion) is known (see, for example, Patent Document 1).
JP 2003-267260 A

The skeletal structure for a transport device of Patent Document 1 is such that a hollow part of a skeleton member is filled with powder and closed at both ends with flat partition walls. Thereby, when a load acts on the skeleton member, the absorbed energy can be increased by the granular material.
Furthermore, the skeletal structure for a transportation device can increase the energy absorption at the time of collision and increase the strength and rigidity of the skeletal member by filling the hollow portion of the skeleton member with powder particles.

By the way, the skeleton member needs to be coated on the inner surface of the skeleton member in order to prevent rust. However, when the hollow part of the skeleton member is filled with a plurality of powder particles, the paint cannot be applied to the inner peripheral surface of the skeleton member.
Therefore, before the hollow portion of the skeleton member is filled with a plurality of powder particles, it is necessary to apply a paint to the inner peripheral surface of the skeleton member.

Here, for example, the skeleton member is assembled into a hollow cylindrical body by joining two members having a substantially U-shaped cross section by spot welding or the like. For this reason, after assembling the skeleton member, it is difficult to fill the skeleton member with a plurality of powder particles.
Therefore, before assembling the skeleton member with two members, by placing a plurality of powder particles on one of the two members, and then joining the other member to one member, A plurality of powder particles are filled.

On the other hand, in transportation equipment, for example, automobiles, a skeleton member is assembled and then a paint is applied to the skeleton member.
Therefore, in order to fill the granular material after applying the paint to the inner peripheral surface of the skeleton member, it is necessary to fill the skeleton member formed in the cylindrical body with a plurality of powder particles.
For this reason, it becomes difficult to fill the skeletal member with powder particles, and a large-scale device such as a vibration device for vibrating the entire automobile is required.

  The present invention is a skeleton for transportation equipment that can fill a skeletal member with a granular material without using a large-scale device such as a vibration device and can apply a paint to the inner peripheral surface of the skeleton member. It is an object to provide a structure.

  According to the first aspect of the present invention, a hollow portion is formed in a skeleton member used in a transportation device, and at least a part of the hollow portion is filled with a plurality of powder particles, and both ends of the filled powder particles are In the skeleton structure for transportation equipment each supported by a partition wall, a container capable of storing the plurality of powder particles, a holding member capable of holding the container at a predetermined interval with respect to an inner peripheral surface of the skeleton member, The paint for applying the inner peripheral surface can be introduced into the space between the inner peripheral surface of the skeleton member and the container.

  The invention according to claim 2 is a powder in which a hollow portion is formed in a skeleton member used in a transportation device, and a plurality of powder particles are densely filled in at least a part of the hollow portion, and the powder is densely filled. In a skeleton structure for transportation equipment in which both ends of the body are supported by partition walls, the plurality of powder particles are roughly stored, and are stored in the hollow portion at a predetermined interval with respect to the inner peripheral surface of the skeleton member. A container that is in contact with the inner peripheral surface when the coarse granular material is dense, and the inner peripheral surface of the skeleton member in a state in which the plurality of powder granular materials are roughly stored. A holding member that can be held at a predetermined interval, and a paint that applies the inner peripheral surface can be introduced into a space between the inner peripheral surface of the skeleton member and the container. Features.

  The invention according to claim 3 is characterized in that the holding member is a clip.

  The invention according to claim 4 is characterized in that a partition is provided at each end of the container, and a first through hole is formed in each partition to guide the paint to the hollow portion.

  The invention according to claim 5 is characterized in that the container is formed of a heat softening material.

  The invention according to claim 6 is characterized in that a foam material is provided between the container and the granular material.

  The invention according to claim 7 is characterized in that a second through hole is formed in the skeleton member facing the container, and a plate material is provided between the second through hole and the container.

In the invention which concerns on Claim 1, Claim 2, the container which accommodates a some granular material was provided. And this container was hold | maintained at predetermined intervals with respect to the internal peripheral surface of a frame | skeleton member by hold | maintaining with a holding member.
The paint can be applied to the inner peripheral surface by introducing the paint into the space between the inner peripheral surface of the skeleton member and the container.

Therefore, it becomes possible to store the granular material in the skeleton member in the pre-process of applying the paint to the inner peripheral surface of the skeleton member. Thereby, in the pre-process which assembles | attaches a frame member, a granular material can be arrange | positioned in a storage position, and a frame member can be assembled | attached integrally after that.
Therefore, the granular material can be filled in the skeleton member without using a large-scale device such as the vibration device described in the prior art, and the paint can be applied to the inner peripheral surface of the skeleton member. There are advantages.

In the invention according to claim 3, a clip is used as the holding member. The clip is an existing member usually used in a production process of an automobile or the like, for example.
Thereby, since a holding member can be obtained easily, there exists an advantage that the cost of the frame structure for transport equipment can be held down.

In the invention which concerns on Claim 4, a some granular material can be supported by providing a partition in the both ends of a container.
Therefore, when a load acts on the skeleton member, the granular material can be held in a sealed state by the partition walls. Thereby, there exists an advantage that an impact can be absorbed favorably by the pressure which generate | occur | produces inside a granular material, and absorption energy can be raised.

Furthermore, since the first through hole is formed in the partition wall, the paint can be guided from the first through hole to the hollow portion.
Accordingly, there is an advantage that the paint can be satisfactorily introduced into the space between the inner peripheral surface of the skeleton member and the container, and the paint can be satisfactorily applied to the inner peripheral surface.

In the invention which concerns on Claim 5, when a coating material apply | coated to the internal peripheral surface of a frame | skeleton member is dried by forming a container with a heat softening material, a container can be deform | transformed with the heat which dries.
Thereby, there exists an advantage that a container can be deform | transformed so that it may adapt to a hollow part, and a several powder body can be favorably filled in the whole hollow part.
Here, the thermosoftening material refers to a material that softens when heat is applied. As an example, a thermoplastic resin such as polypropylene (PP) or polyethylene terephthalate (PET) is applicable.

In the invention which concerns on Claim 6, the foaming material was provided between the container and the granular material. Therefore, by foaming the foam material, it is possible to apply a pressing force (that is, initial pressure) to the granular material with the foam material before the load acts on the skeleton member.
Thereby, there exists an advantage that the intensity | strength and rigidity of the frame structure for transport equipment can be improved with the granular material with which the frame member was filled.

In the invention which concerns on Claim 7, the 2nd through-hole was formed in the frame | skeleton member facing a container. Since the second through hole is formed in the skeleton member, the paint can be guided from the second through hole to the hollow portion.
Thereby, there is an advantage that the paint can be more satisfactorily introduced into the space between the inner peripheral surface of the skeleton member and the container, and the paint can be more satisfactorily applied to the inner peripheral surface.

Furthermore, a 2nd through-hole can be block | closed with a board | plate material by providing a board | plate material between a 2nd through-hole and a container. Therefore, it can prevent that the granular material in a container protrudes from a 2nd through-hole when a load acts on a skeleton member.
Thus, there exists an advantage that the granular material in a container can prevent protruding from a 2nd through-hole, and can improve the absorbed energy of a several granular material.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a skeletal structure for a transportation device (first embodiment) according to the present invention.
The skeletal structure 10 for a transport device includes a skeleton member 12 used in an automobile as the transport device 11, a container 13 provided in the skeleton member 12, and a left wall (left end) 14 in the container 13 (see FIG. 2). The left foam material 21 as the provided foam material, the right foam material 22 as the foam material provided on the right wall (right end) 15 (see FIG. 2) in the container 13, the container 13 and the left and right A plurality of powder particles 23 filled in a block shape between the foam materials 21 and 22, a clip 25 (see FIG. 2) as a holding member for locking the container 13 to the skeleton member 12, and the left wall of the container 13 14 is provided with a left partition wall (partition wall) 26 provided to face 14 and a right partition wall (partition wall) 27 provided to face the right wall 15 of the container 13.

The skeleton member 12 is a member formed in a rectangular cylindrical body by joining a lower member 31 constituting the lower half and an upper member 32 constituting the upper half.
The lower member 31 is formed in a substantially U-shaped cross section, and has a lower left flange 31a projecting to the left side and a lower right flange 31b projecting to the right side.
The upper member 32 is formed in a substantially U-shaped cross section, and has an upper left flange 32a projecting to the left side and an upper right flange 32b projecting to the right side.

The lower left flange 31a of the lower member 31 and the upper left flange 32a of the upper member 32 are joined by spot welding, for example.
Similarly, the lower right flange 31b of the lower member 31 and the upper right flange 32b of the upper member 32 are joined by spot welding, for example.

By joining the lower left flange 31a and the upper left flange 32a, and joining the lower right flange 31b and the upper right flange 32b, the lower member 31 and the upper member 32 are integrally connected to form the skeleton member 12.
The skeleton member 12 is a cylindrical member that is formed in a substantially rectangular cross section and in which a hollow portion 34 is formed on the inner peripheral surface 12a.
A coating 35 is applied to the inner peripheral surface 12 a of the skeleton member 12.

FIG. 2 is a cross-sectional view showing the skeletal structure for a transport device according to the first embodiment, and FIG. 3 is a cross-sectional view showing the skeleton structure for a transport device before the foam material is expanded.
The container 13 is formed of a heat softening material and has a substantially rectangular cross section, and is locked in the skeleton member 12 by a clip 25.
The thermosoftening material is a material that softens when heat is applied, and examples thereof include thermoplastic resins such as polypropylene (PP) and polyethylene terephthalate (PET).
In this container 13, a left foam material 21 is accommodated adjacent to the left wall 14, a right foam material 22 is accommodated adjacent to the right wall 15, and a granular material between the left and right foam materials 21, 22. 23... Are filled.

  As shown in FIG. 3, the container 13 can roughly store a plurality of powder bodies 23 before the left and right foam materials 21 and 22 expand (foam), and as shown in FIG. 2. The left and right foam materials 21 and 22 are expanded and the container 13 is heat-softened, so that a plurality of powder particles 23 can be densely filled.

  Furthermore, the container 13 can be accommodated in the hollow portion 34 at a predetermined interval S with respect to the inner peripheral surface 12a of the skeleton member 12 in a state where a plurality of powder particles 23 are roughly accommodated as shown in FIG. In addition, as shown in FIG. 2, when the left and right foamed materials 21 and 22 are expanded to make the powder bodies 23 dense, the inner peripheral surface 12a is deformed so as to be in contact therewith.

Specifically, when the left and right foam materials 21 and 22 are expanded by heat (temperature change), the container 13 is softened and deformed by the heat.
By deforming the container 13, the container 13 is made to conform to the inner peripheral surface 12 a of the skeleton member 12, and the plurality of powder particles 23 are satisfactorily filled in at least a part 34 a of the hollow portion 34 over the entire area. Can do.

The plurality of powder particles 23 are filled in at least a part 34a of the hollow portion 34 in a block shape.
By filling a plurality of powder bodies 23 in a block shape, a powder body block 24 is formed.

When the skeleton member 12 is deformed due to a load acting on the skeleton member 12, the powder particles 23 ... generate pressure inside the particle body 23 and absorb the load (impact energy).
Furthermore, the granular material 23 increases the strength and rigidity of the skeleton member 12 by filling the skeleton member 12.

As the granular material 23, for example, silicon dioxide (SiO ₂ ), aluminum oxide (Al ₂ O ₃ : alumina), silica alumina, resin, glass, and ceramics are suitable.

A left foam material 21 is provided between the left wall 14 in the container 13 and the left end (one end of both ends) 24 a of the granular material block 24.
The left foam material 21 is a porous material having a large number of substantially spherical independent bubbles therein. When the left foam material 21 is heated (temperature change), the bubbles expand (foam) and the volume of the left foam material 21 increases.

A right foam material 22 is provided between the right wall 15 in the container 13 and the right end (the other end of both ends) 24b of the powder block 24.
Like the left foam material 21, the right foam material 22 is a porous material having a large number of substantially spherical independent bubbles therein. When the right foam material 22 is heated (temperature change), the bubbles expand (foam) and the volume of the right foam material 22 increases.

By foaming the left and right foam materials 21 and 22, a pressing force (that is, initial pressure) can be applied to the granular material 23... Before the load is applied to the skeleton member 12.
Thereby, the intensity | strength and rigidity of the frame structure for transport equipment can be improved with the granular material with which the frame member was filled.

The container 13 containing the left and right foam materials 21 and 22 and the granular material 23 is locked to the skeleton member 12 with a clip 25.
The clip 25 is a member that can be locked in a mounting hole 37 a provided in the lower wall 37 among the lower members 31 constituting the lower half of the skeleton member 12. As the clip 25, for example, an existing resin clip that is usually used in a production process of an automobile or the like is used.
By using an existing clip, the holding member can be easily obtained, and the cost of the framework structure 10 for transportation equipment can be suppressed.

  As an example, the clip 25 includes a head 41 provided on the bottom wall 17 of the container 13, a locking shaft 42 extending downward from the head 41, and a diameter-enlarged portion 43 provided in the middle of the locking shaft 42. And a locking claw 44 provided at the tip of the locking shaft 42.

By locking the locking claw 44 in the mounting hole 37 a of the lower wall 37, the clip 25 is attached to the lower wall 37 by the locking claw 44 and the enlarged diameter portion 43. In this state, the enlarged diameter portion 43 is in contact with the inner peripheral surface 12 a of the lower wall 37.
Here, the container 13 is formed of a heat softening material. Therefore, by expanding the left and right foam materials 21 and 22 and heating the container 13, the bottom wall 17 of the container 13 is deformed following the enlarged diameter portion 43 as shown in FIG. It abuts on the peripheral surface 12a.

On the other hand, as shown in FIG. 3, in the state before the left and right foam materials 21, 22 and the container 13 are deformed by heat (that is, a state in which the granular material 23 is roughly stored in the container 13), the container 13 bottom walls 17 are supported by the enlarged diameter portion 43.
Thereby, the container 13 is maintained in a state in which the lower wall 37 is floated by the thickness dimension (predetermined interval) S of the enlarged diameter portion 43 with respect to the inner peripheral surface 12 a of the lower wall 37.
Furthermore, both side walls (not shown) and the top wall 16 of the container 13 are kept in a state separated from the inner peripheral surface 12a of the skeleton member 12 by a predetermined distance S.

That is, the container 13 is maintained in a state where the entire peripheral wall is separated from the inner peripheral surface 12 a of the skeleton member 12 by a predetermined distance S.
A rectangular cylindrical space (space) 46 is formed in a part 34 a of the hollow portion 34 on the peripheral wall of the container 13 and the inner peripheral surface 12 a of the skeleton member 12.

The rectangular cylindrical space 46 is a space into which a paint 35 (see FIG. 2) for applying the inner peripheral surface 12a of the skeleton member 12 can be introduced.
The reason why the entire peripheral wall of the container 13 is separated from the inner peripheral surface 12a of the skeleton member 12 by a predetermined distance S will be described in detail with reference to FIG.

A left partition wall 26 is provided adjacent to the left wall 14 of the container 13.
The left partition wall 26 includes a substantially rectangular flat portion 51 that faces the left foam material 21 via the left wall 14, and upper, lower, left, and right mounting pieces 53 to 56 (right mounting pieces 56) provided on the peripheral edge 52 of the flat portion 51. 1).

In the flat portion 51, first through holes 58 (see also FIG. 1) are formed in the vicinity of the peripheral edge 52.
As shown in FIG. 2, the first through holes 58 are kept closed by the left wall 14 of the container 13 when the left and right foam materials 21 and 22 are expanded and the container 13 is heated. .

On the other hand, as shown in FIG. 3, in the state before the left and right foam materials 21, 22 and the container 13 are deformed by heat (that is, a state in which the granular material 23 is roughly accommodated in the container 13), the first The through holes 58... Open to the rectangular space 46.
By forming the first through holes 58... In the left partition wall 26, the paint 35 for applying the inner peripheral surface 12 a of the skeleton member 12 can be guided to the rectangular space 46 through the first through holes 58.
The reason why the first through holes 58 are opened in the rectangular space 46 will be described in detail with reference to FIG.

The upper attachment piece 53 of the left partition wall 26 is an attachment piece projecting forward from the upper part of the peripheral edge 52. The upper attachment piece 53 is attached to the upper part of the inner peripheral surface 12a with a fastening member (not shown) such as a bolt.
The lower attachment piece 54 is an attachment piece that protrudes forward from the lower portion of the peripheral edge 52. The lower mounting piece 54 is joined to the lower part of the inner peripheral surface 12a by spot welding.

The left attachment piece 55 is an attachment piece projecting forward from the left portion of the peripheral edge 52. The left attachment piece 55 is joined to the left part of the inner peripheral surface 12a by spot welding.
The right attachment piece 56 shown in FIG. 1 is an attachment piece that protrudes forward from the right portion of the peripheral edge 52. The right attachment piece 56 is joined to the right part of the inner peripheral surface 12a by spot welding.

  In this way, the upper attachment piece 53 is attached to the upper part, the lower attachment piece 54 is joined to the lower part, the left attachment piece 55 is joined to the left part, and the right attachment piece 56 is joined to the right part. A partition wall 26 is attached to the skeleton member 12.

A right partition wall 27 is provided adjacent to the right wall 15 of the container 13.
Since the right partition wall 27 is the same member as the left partition wall 26, the same reference numerals as those of the left partition wall 26 are assigned to the respective components and the description thereof is omitted.

By providing the left partition wall 26 adjacent to the left wall 14 of the container 13, the left foam material 21 can be supported by the left partition wall 26.
By providing the right partition wall 27 adjacent to the right wall 15 of the container 13, the right foam material 22 can be supported by the right partition wall 27.

Therefore, the plurality of powder bodies 23 can be supported by the left and right partition walls 26 and 27 via the left and right foam materials 21 and 22.
Thereby, when a load acts on the skeleton member 12, the granular materials 23 can be held in a sealed state by the left and right partition walls 26 and 27. Therefore, the absorbed energy can be increased by the pressure generated in the powder body 23.

  As described above, in the skeletal structure 10 for a transport device, the hollow portion 34 is formed in the skeleton member 12 used in the transport device 11, and a plurality of powder particles 23 are blocked in at least a part 34a of the hollow portion 34. The left end 24a of the powder block 24 is supported by the left foam material 21 and the left partition wall 26, and the right end 24b of the powder block 24 is supported by the right foam material 22 and the right partition wall 27. Yes.

Thereby, by foaming the left and right foam materials 21 and 22, it is possible to maintain a state in which the pressing force (initial pressure) is generated satisfactorily in the granular material 23... Before the load acts on the skeleton member. Is possible.
Therefore, the strength / rigidity of the skeletal structure 10 for transportation equipment can be increased by the powders 23 filled in the skeleton member 12.

In addition, by foaming the left and right foam materials 21 and 22, for example, when a load acts on the skeletal structure 10 for transport equipment in the direction of the arrow (see FIG. 2), the granular material filled in the skeleton member 12 Can be held in a sealed state by the left and right foam materials 21 and 22.
By holding the powder particles 23 in a sealed state, the impact can be favorably absorbed by the pressure generated inside the powder particles 23.

Next, the process of assembling the skeletal structure 10 for transportation equipment will be described with reference to FIGS.
4 (a) and 4 (b) are diagrams illustrating a process of housing the powder body in the skeleton member according to the first embodiment.
In (a), the left and right partition walls 26 and 27 are attached (joined) to the lower member 31 constituting the lower half of the skeleton member 12 at a predetermined interval.
The left and right foam materials 21 and 22 are accommodated in the container 13, and the granular material 23 is roughly accommodated between the left and right foam materials 21 and 22.

The container 13 is locked to the lower wall 37 of the lower member 31 with the clip 25. The bottom wall 17 of the container 13 is kept in a state of being floated by the thickness dimension (predetermined interval) S of the clip 25 (specifically, the enlarged diameter portion 43).
The upper member 32 constituting the upper half of the skeleton member 12 is attached (joined) to the lower member 31 as indicated by an arrow A.

In (b), a hollow portion 34 is formed in the skeleton member 12, and the container 13 is accommodated in at least a part 34 a of the hollow portion 34.
The container 13 is held in a state in which the entire peripheral wall is separated from the inner peripheral surface 12 a of the skeleton member 12 by a predetermined distance S.
A rectangular cylindrical space 46 is formed in a part 34 a of the hollow portion 34 on the peripheral wall of the container 13 and the inner peripheral surface 12 a of the skeleton member 12.

The rectangular cylindrical space 46 communicates with the outer space 34C of the left partition wall 26 through the first through holes 58 of the left partition wall 26 and the right partition wall 27 through the first through holes 58 of the right partition wall 27. The outer space 34D is communicated with.
The outer space 34 </ b> C of the left partition wall 26 and the outer space 34 </ b> D of the right partition wall 27 communicate with the outside of the skeleton member 12.

FIGS. 5A and 5B are diagrams illustrating a process of applying a paint to the inner peripheral surface of the skeleton member according to the first embodiment.
In (a), the skeletal structure 10 for transportation equipment is immersed in the paint 35 so that the paint 35 is introduced into the rectangular cylindrical space 46 as indicated by the arrow B through the first through holes 58 of the left partition wall 26. To do.
Similarly, the paint 35 is introduced into the rectangular cylindrical space 46 as indicated by the arrow C through the first through holes 58 of the right partition wall 27.
The introduced paint 35 can be applied to the inner peripheral surface 12 a of the skeleton member 12.

In (b), when the paint 35 applied to the inner peripheral surface 12a is dried, the container 13 is softened by drying heat and the left and right foam materials 21, 22 are expanded.
The container 13 can be made to conform to the inner peripheral surface 12 a of the skeleton member 12, and the granular material 23 can be satisfactorily filled in the entire region of at least a part 34 a (see FIG. 5A) of the hollow portion 34.
Thereby, the process of assembling the frame structure 10 for transportation equipment is completed.

As described above, according to the skeletal structure 10 for a transport device, the paint 35 can be applied to the inner peripheral surface 12 a of the skeleton member 12 in a state where the granular material 23 is housed in the skeleton member 12.
Therefore, as shown in FIGS. 4A to 4B, it is possible to store the granular material 23 in the skeleton member 12 in the previous step of applying the paint 35 to the inner peripheral surface 12 a of the skeleton member 12. .

Thereby, in the pre-process which assembles frame member 12, granular material 23 ... can be arranged in an accommodation position, and skeleton member 12 can be assembled integrally after that.
Therefore, the granular material 23 can be filled in the skeleton member 12 without using a large-scale device such as the vibration device (not shown) described in the prior art, and the inner peripheral surface of the skeleton member 12 The coating material 35 can be applied to 12a.

  Hereinafter, the skeletal structure for a transport device according to the second to fifth embodiments will be described with reference to FIGS. In addition, in the frame structure for transportation equipment of the second to fifth embodiments, the same reference numerals are given to the same similar members as the members of the first embodiment, and the description thereof is omitted.

(Second Embodiment)
FIG. 6 is a cross-sectional view showing a skeletal structure for a transport device (second embodiment) according to the present invention.
In the frame structure 60 for a transport device according to the second embodiment, a lower wall through hole (second through hole) 62 is formed in the frame member 12, and a bottom wall plate (plate material) is formed between the lower wall through hole 62 and the container 13. ) 63 is provided, and the other configuration is the same as that of the skeletal structure 10 for transportation equipment according to the first embodiment.

The lower wall through hole 62 is formed in a portion of the lower wall 37 of the lower member 31 that faces the container 13.
The lower member 31 is a member constituting the lower half of the skeleton member 12.
The bottom wall plate 63 is provided in a portion of the bottom wall 17 of the container 13 that faces the lower wall through hole 62.

The bottom wall plate material 63 is held at a position where the lower wall through-hole 62 is closed in a state where the left and right foam materials 21 and 22 are expanded.
Therefore, for example, when a load acts on the skeletal structure 10 for transport equipment in the direction of the arrow, the granular materials 23 filled in the skeleton member 12 can be held in a sealed state.
By holding the powder particles 23 in a sealed state, the impact can be favorably absorbed by the pressure generated inside the powder particles 23.

On the other hand, in the state before the left and right foamed materials expand, the bottom wall plate 63 is held at a position away from the lower wall through-hole 62 as shown in FIG.
Therefore, the rectangular cylindrical space 46 is kept in communication with the outside of the skeleton member 12 through the lower wall through-hole 62.

Next, the process of assembling the transport equipment skeleton structure 60 of the second embodiment will be described with reference to FIG.
FIGS. 7A and 7B are views for explaining the assembly process of the skeleton structure for a transport device according to the second embodiment.
In (a), a hollow portion 34 is formed in the skeleton member 12, and the container 13 is accommodated in at least a part 34 a of the hollow portion 34.
The container 13 is held in a state in which the entire peripheral wall is separated from the inner peripheral surface 12 a of the skeleton member 12 by a predetermined distance S.
Therefore, the bottom wall plate 63 can be held at a position away from the lower wall through hole 62.

A rectangular cylindrical space 46 is formed in a part 34 a of the hollow portion 34 on the peripheral wall of the container 13 and the inner peripheral surface 12 a of the skeleton member 12.
The rectangular cylindrical space 46 communicates with the outer space 34C of the left partition wall 26 through the first through holes 58 of the left partition wall 26 and the right partition wall 27 through the first through holes 58 of the right partition wall 27. The outer space 34D is communicated with.

The outer space 34 </ b> C of the left partition wall 26 and the outer space 34 </ b> D of the right partition wall 27 communicate with the outside of the skeleton member 12.
Further, the rectangular cylindrical space 46 is communicated with the outside of the skeleton member 12 through the lower wall through hole 62.

Therefore, by immersing the skeletal structure 60 for transportation equipment in the paint 35, the paint 35 is introduced into the rectangular cylindrical space 46 as indicated by an arrow B through the first through holes 58 of the left partition wall 26.
Similarly, the paint 35 is introduced into the rectangular cylindrical space 46 as indicated by the arrow C through the first through holes 58 of the right partition wall 27.

At the same time, it is introduced into the rectangular cylindrical space 46 as indicated by the arrow D through the lower wall through hole 62.
In this way, by introducing the paint 35 into the rectangular cylindrical space 46 through the first through holes 58... And the lower wall through holes 62, the paint 35 can be satisfactorily introduced into the rectangular cylindrical space 46. The paint can be applied to the inner peripheral surface 12a even better.

In (b), when the paint is dried, the container 13 is softened by drying heat and the left and right foam materials 21 and 22 are expanded.
The container 13 can be made to conform to the inner peripheral surface 12a of the skeleton member 12, and the granular material 23 can be satisfactorily filled in at least a part 34a (see FIG. 7A) of the hollow portion 34.
At this time, the bottom wall 17 of the container 13 is pressed against the lower wall 37 of the skeleton member 12. Therefore, the bottom wall plate 63 is held at a position where the lower wall through hole 62 is closed.
Thereby, the process of assembling the frame structure 60 for transportation equipment is completed.

  As described above, according to the transportation device skeleton structure 60 of the second embodiment, the same effects as those of the transportation device skeleton structure 10 of the first embodiment can be obtained.

  Furthermore, according to the skeletal structure 60 for transportation equipment of the second embodiment, the coating 35 is passed through the first through holes 58 and the lower wall through holes 62 by forming the lower wall through holes 62 in the skeleton member 12. Introducing into the rectangular cylindrical space 46 allows the paint 35 to be satisfactorily introduced into the rectangular cylindrical space 46 so that the paint 35 can be more satisfactorily applied to the inner peripheral surface 12a.

In addition, according to the skeletal structure 60 for transportation equipment of the second embodiment, when the left and right foam materials 21 and 22 are expanded by providing the bottom wall plate 63 on the bottom wall 17 of the container 13, the bottom wall The lower wall through hole 62 can be closed with the plate material 63.
Therefore, when a load acts on the skeleton member 12, it is possible to prevent the powder particles 23 from protruding from the lower wall through-hole 62.
Thus, it is possible to prevent the powder particles 23 from protruding from the lower wall through-hole 62 and to secure the absorbed energy of the powder particles 23.

(Third embodiment)
FIG. 8 is a cross-sectional view showing a skeletal structure for a transportation device (third embodiment) according to the present invention.
In the skeleton structure 70 for a transport device according to the third embodiment, an upper wall through hole (second through hole) 72 is formed in the upper wall 36 of the skeleton member 12, and the top wall 36 is located between the upper wall through hole 72 and the container 13. A wall plate material (plate material) 73 is provided, and the other configuration is the same as that of the skeletal structure 60 for transportation equipment according to the second embodiment.

The upper wall through hole 72 is formed in a portion of the upper wall 36 of the upper member 32 that faces the top wall 16 of the container 13.
The upper member 32 is a member constituting the upper half of the skeleton member 12.
The top wall plate material 73 is provided in a portion of the top wall 16 of the container 13 that faces the upper wall through hole 72.

Therefore, by immersing the skeleton structure 70 for transportation equipment in the paint 35, the paint 35 is introduced into the rectangular cylindrical space 46 through the first through holes 58 and the lower wall through holes 62, and the upper wall It can be introduced into the rectangular cylindrical space 46 through the through hole 72.
Thereby, the coating material 35 can be satisfactorily introduced into the rectangular cylindrical space 46, and the coating material 35 can be applied more satisfactorily to the inner peripheral surface 12a.

Furthermore, by providing the top wall plate material 73 on the top wall 16 of the container 13, when the left and right foam materials 21 and 22 are expanded, the top wall plate material 73 can close the upper wall through-hole 72.
Therefore, when a load acts on the skeleton member 12, it is possible to prevent the powder particles 23 from protruding from the upper wall through-hole 72.
In this way, it is possible to prevent the powder particles 23 from protruding from the upper wall through-hole 72, and to secure the absorbed energy of the powder particles 23.

  In addition, according to the skeletal structure for transportation equipment 70 of the third embodiment, the same effect as that of the skeleton structure 60 for transportation equipment of the second embodiment can be obtained.

(Fourth embodiment)
FIG. 9 is a cross-sectional view showing a skeletal structure for a transport device (fourth embodiment) according to the present invention.
In the skeleton structure 80 for transportation equipment according to the fourth embodiment, one side wall through hole (second through hole) 82, 82 is formed on one side wall 38 of the skeleton member 12. One side wall plate material (plate material) 85 is provided between the container 13 and the other side wall through hole (second through hole) 83, 83 is formed on the other side wall 39 of the skeleton member 12. The other side wall plate material (plate material) 86 is provided between 83 and 83 and the container 13, and the other structure is the same as that of the skeleton structure 10 for transportation equipment of the first embodiment.

Therefore, by immersing the skeleton structure 80 for transportation equipment in the paint 35, the paint 35 is introduced into the rectangular cylindrical space 46 through the one side wall through holes 82 and 82 and the other side wall through holes 83 and 83. can do.
Thereby, the coating material 35 can be satisfactorily introduced into the rectangular cylindrical space 46, and the coating material 35 can be applied more satisfactorily to the inner peripheral surface 12a.

Further, when the left and right foam materials 21 and 22 shown in FIG. 2 are expanded by providing one side wall plate material 85 on one side wall 18 of the container 13, one side wall through hole 82, 82 can be closed.
Similarly, by providing the other side wall plate member 86 on the other side wall 19 of the container 13, when the left and right foam materials 21 and 22 shown in FIG. 2 are expanded, the other side wall plate material 86 uses the other side wall through hole 83. , 83 can be blocked.

(Fifth embodiment)
FIG. 10 is a cross-sectional view showing a skeletal structure for a transportation device according to the present invention (fifth embodiment).
The frame structure 90 for transportation equipment of the fifth embodiment is obtained by replacing one wall plate material 85 and the other wall plate material 86 of the fourth embodiment with one wall plate material 92 and the other wall plate material 93, respectively. Other configurations are the same as those of the framework structure 80 for transportation equipment according to the fourth embodiment.

One wall plate member 92 and the other wall plate member 93 are formed integrally with the top wall 16 and the bottom wall 17 when the container 13 is formed.
When molding the container, the one wall plate material 92 and the other wall plate material 93 can be integrally formed, so that the step of attaching the one wall plate material 92 and the other wall plate material 93 can be omitted.
Thereby, a manufacturing process can be simplified and productivity can be improved.

  In the first to fourth embodiments, the automobile is exemplified as the transport device 11 to which the transport device skeleton structure 10, 60, 70, 80, 90 is applied. However, the present invention is not limited to this. The skeletal structure 10, 60, 70, 80, 90 can also be applied to other transportation equipment such as railroads, ships, airplanes, and motorcycles.

  In the first to fourth embodiments, the left and right foam materials 21 and 22 have been described as members that expand (foam) by heating (temperature change). However, the present invention is not limited to this. It is also possible to use a foam material that expands (foams) due to the above.

  INDUSTRIAL APPLICABILITY The present invention is suitable for application to an automobile or the like provided with a skeletal structure for transportation equipment in which a skeleton member is filled with powder particles.

It is a perspective view which shows the frame | skeleton structure (1st Embodiment) for transport equipment which concerns on this invention. It is sectional drawing which shows the frame structure for transport apparatuses which concerns on 1st Embodiment. It is sectional drawing which shows the frame | skeleton structure for transportation equipment before expanding a foaming material. It is a figure explaining the process of accommodating a granular material in the frame | skeleton member which concerns on 1st Embodiment. It is a figure explaining the process of apply | coating a coating material to the internal peripheral surface of the frame member which concerns on 1st Embodiment. It is sectional drawing which shows the frame | skeleton structure for transport equipment (2nd Embodiment) which concerns on this invention. It is a figure explaining the assembly | attachment process of the frame structure for transport apparatuses which concerns on 2nd Embodiment. It is sectional drawing which shows the frame | skeleton structure (3rd Embodiment) for transport equipment which concerns on this invention. It is sectional drawing which shows the frame | skeleton structure (4th Embodiment) for transport equipment concerning this invention. It is sectional drawing which shows the frame | skeleton structure (5th Embodiment) for the transport equipment which concerns on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10,60,70,80,90 ... Skeletal structure for transport equipment, 11 ... Transport equipment, 12 ... Skeletal member, 12a ... Inner peripheral surface, 13 ... Container, 14 ... Left wall (left end of both ends), 15 ... Right wall (right end of both ends), 21 ... left foam material (foam material), 22 ... right foam material (foam material), 23 ... powder body, 24 ... powder block, 24a, 24b ... left and right end ( (Both ends), 25 ... clip (holding member), 26 ... left partition (partition), 27 ... right partition (partition), 34 ... hollow part, 34a ... at least part of the hollow part, 35 ... paint, 37 ... lower wall, 58 ... 1st through hole, 62 ... Lower wall through hole (second through hole), 72 ... Upper wall through hole (second through hole), 63 ... Bottom wall plate material (plate material), 73 ... Top wall plate material (plate material) 82 ... One side wall through hole (second through hole), 83 ... The other side wall through hole (second through hole), 85, 92 ... One side wall plate material (plate material), 86, 3 ... the other side wall sheet (plate material), S ... predetermined intervals.

Claims (7)

A skeleton for a transportation device in which a hollow portion is formed in a skeleton member used in a transportation device, a plurality of powder particles are filled in at least a part of the hollow portion, and both ends of the filled powder material are supported by partition walls, respectively. In structure
A container capable of storing the plurality of powder particles;
A holding member capable of holding the container at a predetermined interval with respect to the inner peripheral surface of the skeleton member,
A skeleton structure for transportation equipment, wherein a coating material for applying the inner peripheral surface can be introduced into a space between the inner peripheral surface of the skeleton member and the container. A hollow portion is formed in a skeleton member used in a transportation device, and at least a part of the hollow portion is densely filled with a plurality of powder particles, and both ends of the densely packed powder particles are supported by partition walls, respectively. In the framework for transportation equipment,
In a state in which the plurality of powder particles are roughly stored, the hollow powder can be stored in the hollow portion at a predetermined interval with respect to the inner peripheral surface of the skeleton member, and the coarse powder particles are made dense. Sometimes a container in contact with the inner peripheral surface;
A holding member capable of holding the container at a predetermined interval with respect to the inner peripheral surface of the skeleton member in a state in which the plurality of powder particles are roughly stored,
A skeleton structure for transportation equipment, wherein a coating material for applying the inner peripheral surface can be introduced into a space between the inner peripheral surface of the skeleton member and the container.   The skeleton structure for a transportation device according to claim 1, wherein the holding member is a clip. A partition is provided at each end of the container,
The skeletal structure for a transportation device according to any one of claims 1 to 3, wherein each partition wall is formed with a first through hole that guides the paint to the hollow portion.   The said container is formed with the heat softening material, The frame | skeleton structure for transport apparatuses as described in any one of Claims 1-4 characterized by the above-mentioned.   The framework for transportation equipment according to claim 4 or 5, wherein a foaming material is provided between the container and the granular material. A second through hole is formed in the skeletal member facing the container;
The frame structure for transportation equipment according to any one of claims 1 to 6, wherein a plate material is provided between the second through hole and the container.

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