JP3513231B2 - Steel transport container - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical frame in which a side wall panel is erected on a lower side of a waist and slightly inclined outward to lower a side frame of a side wall panel on a lower side. The present invention relates to a steel transport container adapted to engage with a side portion. 2. Description of the Related Art Without using connection fittings such as bolts,
Various steel transport containers have been proposed that can assemble and disassemble a panel serving as a side wall and a lower waist serving as a floor. 4 to 7 show a conventional steel transport container C ′. [0003] In this conventional steel transport container C ', a total of four panels are vertically erected on the upper surface of the four sides of the waist 13 serving as the floor of the container, and the panel sides are mutually connected. It is formed in a rectangular cylindrical box shape. [0004] The four side wall panels include a side panel P1 arranged in the longitudinal direction of the sliding member 12, and a toe panel P2 arranged perpendicular to the longitudinal direction of the sliding member 12. A lower frame 1 for reinforcement is provided at the lower edge of the side panel P1 and the toe panel P2.
9 is fixed. The lower waist 13 includes a plurality of sliding members 12 disposed at equal intervals in parallel, a corrugated floor member 18 disposed on the sliding members 12, and a lower edge of the toe panel P2. It has a toe grip angle 11 for locking and a side grip angle 21 for locking the lower edge of the side panel P1. As shown in FIG. 4, the grip angle 11 has a horizontal portion 14 and a pair of vertical walls 15 and 16 rising from both ends thereof.
Is bent at an acute angle diagonally inward and downward, and the
2 is a wedge-shaped portion 17 for locking. As shown in FIG. 5, the side grip angle 21 has bent pieces 22 and 23 which are alternately bent downward and upward at one edge, and faces the inside of the bent piece 23 which is bent upward. The cut-and-raised piece 24 stands vertically from the horizontal portion 25. The side grip angles 21 are respectively placed on the sliding members 12 located at both ends of the lower waist 13, and bent pieces 22 bent downward.
Is fitted to one of the flanges 12a of the sliding members 12 and 12 and joined, and the flat plate portion 25 is spot-welded to the other flange 12b to form the sliding member 12
And integrated. The bent piece 23 bent upward is slightly tilted inward so that the lower frame 19 of the side panel P1 fitted between the bent piece 23 and the cut-and-raised piece 24 is prevented from falling out. The side panel P1 and the tongue panel P2 are assembled to the tongue grip angle 11 and the side grip angle 21 as follows. First, the side panel P1 is largely inclined outwardly with respect to the side grip angle 21 as shown in FIG. 6, and as shown by a dashed line in FIG.
1. The lower frame 19 is inserted between the bent piece 23 and the cut-and-raised piece 24 of the side grip angle 21, and from this state, the side panel P1 is vertically erected as shown by a solid line in FIG. As a result, the side panel P1 is prevented from being pulled upward by the bent pieces 23 of the side grip angles 21. Similarly, the tongue panel P2 is largely inclined outwardly with respect to the tongue grip angle 11, and the lower frame 19 of the tongue panel P2 is locked to the wedge-shaped portion 17 as shown in FIG. Raise panel P2 and lower frame 19
Is fitted between the vertical walls 15, 16. Thus, the tongue panel P2 is prevented from being pulled upward by the wedge-shaped portion 17 of the tongue grip angle 11. The side P1a (P1b) of the side panel P1 and the side P2a of the panel P2 are adjacent to each other.
(P2b) are engaged with each other as shown in FIG. The other side panel P1 and the toe panel P
2 is also erected vertically under the waist 13 by the same procedure, and similarly, the side P1a and the side P2a, and the side P1b and the side P
2b is engaged to form a cylindrical side wall. In the conventional steel transport container C ', the distance L' between the lower end portion 17a of the wedge-shaped portion 17 of the toe grip angle 11 and the vertical wall 15 is reduced, and the toe panel P2 4 and 6, the lower frame 19 is largely inclined outward (θ2 = approximately 45 ° to 60 °), so that the lower frame 19 is
7. The same applies to the side panel 1. For this reason, a large space is required in the front, rear, left and right of the lower waist 13, and the steel transport container C 'cannot be assembled in a narrow place. Further, since the panels P1 and P2 are attached while being greatly inclined as described above, the line of sight of an operator who stands the panels is blocked by the panels P1 and P2, and the wedge-shaped portion 17 of the grip angle 11 and the grip angle 21 are bent. Piece 23 was difficult to confirm. Furthermore, since the operator must carry out the engagement work between the lower frame 19 and the grip angles 11 and 21 while supporting the weight of the panels P1 and P2, the work efficiency is extremely poor. In addition, as shown by a two-dot chain line in FIG.
Once the lower frame 19 of the toe panel P2 is placed on the grip angle 11, the lower frame 19 is press-fitted between the wedge-shaped portion 17 and the vertical wall 15, and the right and left of the toe panel P2 with respect to the grip angle 11 In some cases, position adjustment in the direction (the direction perpendicular to the plane of FIG. 4) may not be possible. The present invention has been proposed in view of such circumstances, and has as its object to provide a steel transport container that can be easily assembled and disassembled simply by slightly inclining the side wall panel outward. . In order to achieve the above-mentioned object, a grip angle for a steel transport container according to the present invention is provided at each side edge of an upper edge of a lower part of a waist serving as a floor of the transport container. A steel transport container comprising: a side wall panel standing upright; and a side wall of the side wall panel is engaged with a side side of an adjacent side wall panel to form a side wall closed in a cylindrical shape. A horizontal plate-shaped lower frame fixed to a lower edge of the lower frame, and a locked portion extending integrally and horizontally outward from the outer side of the lower frame so as to slightly protrude from the outer surface of the side wall panel. And an inner vertical wall extending vertically upward on the side of the upper edge of the lower part of the waist and inside the lower edge of the side wall panel, and on the side of the upper edge of the lower part of the waist And an outside extending vertically upward outside a lower edge of the side wall panel. A side vertical wall, which extends integrally from the upper end of the outer vertical wall, hangs down below the side wall panel side via a semicircular bent portion, and terminates at a position immediately above the locked portion. A locking portion, wherein the radius of curvature of the bent portion is vertically supported on the lower side of the waist in the process of erecting the side wall panel, and the lower end surface of the locked portion of the side wall panel is provided. Is applied to the upper end surface of the bent portion to deposit the weight of the side wall panel in the bent portion. In this state, when the side wall panel is tilted outward with an upper limit of about 10 °, the lower frame of the side wall panel and the locked The portion has a small radius of curvature that can be fitted between the inner vertical wall and the outer vertical wall, and the side wall panel is returned from the inclined posture to the vertical posture to insert the locked portion below the locking portion. It is characterized by having such a configuration. With the side wall panel standing upright on the lower side of the waist, the lower end of the locked portion at the lower end of the side wall panel is brought into contact with the upper end surface of the bent portion of the outer vertical wall below the waist. Then, the weight of the side wall panel is stored in the bent portion. In this state, the left and right sides of the side panels and the lower waist are positioned so that the side portions of the panels do not protrude from the lower back corners. Since the contact area between the lower end surface of the locked portion and the upper end surface of the bent portion is extremely small, the frictional force is small, and the operator can perform the positioning with a light force. From this state, the side wall panel is turned outward by about 10 °.
And the locked portion slides along the locking portion between the inner vertical wall and the outer vertical wall. Next, the side wall panel is returned from the inclined posture to the original vertical posture again with the leading end of the locked part abutting on the upper surface under the waist. Thereby, the lower frame and the locked portion are fitted between the inner vertical wall and the outer vertical wall, and the locking portion is positioned right above the locked portion, thereby preventing the side wall panel from falling off. The removal of the side wall panel is performed by reversing the above procedure. Next, an embodiment of the present invention will be described with reference to FIGS. The same components as those in the related art are denoted by the same reference numerals as those in FIGS. The steel transport container C is entirely constructed by erected side panels P1 and toe panels P2 on the four sides of the lower part of the waist 13. A lower frame 19 is attached to lower end edges of the side panel P1 and the toe panel P2, and a locked portion 19a extending from the lower frame 19 is connected to the side panel P1 and the toe panel P2.
Slightly projecting outward from the outer surface in the horizontal direction. A grip angle 1 for locking the lower edges of the side panel P1 and the toe panel P2 is attached to the lower waist 13. The grip angle 1 has a horizontal portion 4 on which the side panel P1 or the toe panel P2 on which the lower frame 19 is mounted, and inner vertical walls extending vertically upward at both ends of the horizontal portion 4. 5 and an outer vertical wall 6, a bent portion 7 extending from the upper end of the outer vertical wall 6 and formed in a semicircular shape with a small curvature toward the inner vertical wall 5, and vertically suspended downward from the bent portion 7. And a locking portion 8. The width of the lower frame 19 including the locked portion 19a is
It is configured to be slightly shorter than the horizontal width of the horizontal portion 4 of the grip angle 1. In addition, the grip angle 1 includes the locking portion 8
The distance L from the lower portion 17a of the conventional wedge-shaped portion 17 to the vertical wall 15 and the distance L '
3 is wider than the distance L "between the upper end 23a and the cut-and-raised piece 24. That is, when the side panel P1 or the toe panel P2 is inclined outward with an upper limit of about 10 degrees from the inner vertical wall 5. , Lower frame 19 and locked portion 19a
The curvature of the bent portion 7 is set to be relatively small, so that the space between the outer vertical wall 6 and the locking portion 8 is set to be relatively small so that the inside of the grip angle 1 can slide. Next, how to attach the side panel P1 or the toe panel P2 to the grip angle 1 will be described. First, as shown by a two-dot chain line in FIG. 1, the locked portion 19 a is placed on the upper end surface 7 a of the bent portion 7 with the bottom surface of the lower frame 19 parallel to the horizontal portion 4 of the grip angle 1. At this time, the lower end surface 19b of the locked portion 19a is in line contact with the upper end surface 7a of the bent portion 7. In this manner, the position of the side panel P1 or the toe panel P2 in the left-right direction with respect to the grip angle 1 is adjusted in a state where the entire weight of the side panel P1 or the toe panel P2 is stored in the bent portion 7. The sliding resistance of the lower frame 19 against the upper end surface 7a of the bent portion 7 is low friction due to line contact, so that the side panel P1 or the toe panel P2 can be moved in the left-right direction with a small force. Thereafter, as shown in FIG. 2, the side panel P1 or the tab panel P2 is inclined outward. When the side panel P1 or the tongue panel P2 is inclined from the inner vertical wall 5 of the grip angle 1 to the angle θ1, as shown by a dashed line in FIG. 1, the lower frame 19 and the locked portion 19a.
Is fitted between the inner vertical wall 5 and the outer vertical wall 6 of the grip angle 1. This angle θ1 is about 10 in this embodiment.
°, but can also be implemented at angles that include more than 10 degrees, ie, less than 20 degrees. The lower end surface 19b of the locked portion 19a is shown in FIG.
As shown by the chain line in the middle, after abutting on the horizontal portion 4 of the grip angle 1, the tongue panel P2 is raised vertically, and the vertical wall of the lower frame 19 is overlapped with the inner vertical wall. At this time, the front end lower surface 19b of the locked portion 19a comes into surface contact with the horizontal portion 4 of the grip angle 1 and is inserted below the locking portion 8, and the side wall panel P (a pair of side panels P1 and a toe panel P2). And the grip angle 1 is completed. In addition, the side part P1
a and the side part P2a, and the side part P1b and the side part P2b have a structure similar to that of FIG. As described above, according to the present embodiment,
When the lower ends of the panels P1 and P2 are placed vertically on the grip angle 1, the sliding friction generated between them can be reduced, and when the panels are set upright, the grip between the side panel P1 or the toe panel P2 can be made. Since the state of engagement with the angle 1 can be easily checked visually, the panel can be positioned quickly. Further, since the side panel P1 or the tongue panel P2 does not need to be largely inclined outward, the panels P1 and P2 can be efficiently and reliably assembled to the grip angle 1 even in a narrow place. In disassembling the steel transport container, the procedure reverse to the above procedure, that is, the side panel P1 or the toe panel P2 is inclined outward by about 10 °, and the side panel P1 is disassembled.
Alternatively, by lifting the tab panel P2 above the grip angle 1, the side panel P1 or the tab panel P2 can be easily pulled out without damaging the locking portion 8, and the steel transport container C is reused. It becomes possible. The grip angle 2 shown in FIG.
A bent portion 7 ′ having a U-shaped cross section extends from the upper end of the outer vertical wall 6 toward the inner vertical wall 5. The grip angle 3 shown in FIG.
A panel grip 9 bulging in a semicircular shape toward the inner vertical wall 5 is formed at an intermediate portion of the outer vertical wall 6. The grip angle 10 shown in FIG.
Is formed by cutting and raising 10a in the middle part of the outer vertical wall 6 toward the inner vertical wall 5. These grip angles 2, 3, and 10 can also be suitably used for engaging the panels P1 and P2 at a small angle of about 10 °. As described above, according to the steel shipping container of the present invention, when the side wall panel is temporarily placed under the waist,
Sliding friction generated between the two can be reduced. Further, since the side wall panel is temporarily placed vertically, the lower end of the side wall panel can be easily seen from an operator who supports the side wall panel by hand, and the position of each panel with respect to the lower part of the waist can be easily adjusted in the left-right direction.
In addition, by increasing the distance between the locking part and the inner vertical wall, making the bent part a small curvature, and narrowing the distance between the locking part and the outer vertical wall, the locked part can be tilted slightly outward. Can be easily slid into the locking portion and can be removed, so that it can be assembled or disassembled even in a narrow space where space is not sufficient.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an enlarged side view of a grip angle used in one embodiment of the present invention. FIG. 2 is an explanatory view for assembling a steel transport container according to one embodiment of the present invention. FIGS. 3A, 3B, and 3C are enlarged side views of other examples of the grip angle used in the embodiment of the present invention. FIG. 4 is an enlarged side view of a toe grip angle of a conventional steel transport container. FIG. 5 is an enlarged side view of a side grip angle of a conventional steel transport container. FIG. 6 is an explanatory view for assembling a conventional steel transport container. FIG. 7 is a cross-sectional view showing an engaged state of a side portion. [Description of Signs] 1 Grip angle 4 Horizontal portion 5 Inner vertical wall 6 Outer vertical wall 7 Bending portion 7a Upper end surface of bending portion 8 Locking portion 13 Lower waist 19 Lower frame 19a Locked portion 19b Tip of locked portion Bottom C Steel transport container P1 Side panel (side wall panel) P2 Toe panel (side wall panel)

Claims (1)

(57) Claims: 1. A side wall panel is erected on each side of an upper edge of a lower part of a waist serving as a floor of a transport container, and a side wall adjacent to the side portion of the side wall panel. In a steel transport container configured to form a cylindrically closed side wall by being engaged with a side portion of a panel, a horizontal plate-shaped lower frame fixed to a lower edge of the side wall panel; A locked portion integrally and horizontally extended outwardly from the outer end of the side wall panel so as to slightly protrude from the outer surface of the side wall panel; and An inner vertical wall extending vertically upward inside the lower edge of the lower end, and vertically extending above the lower edge of the side wall panel on a side of the upper edge of the lower waist. An outer vertical wall, via a semi-arc-shaped bent portion integrally extended from an upper end of the outer vertical wall A locking portion that hangs down on the side of the side wall panel and terminates at a position immediately above the locked portion. Support vertically on the lower side,
When the lower end of the locked portion of the side wall panel is applied to the upper end surface of the bent portion and the weight of the side wall panel is deposited in the bent portion, and the side wall panel is inclined outward with an upper limit of about 10 ° in this state. The lower frame and the locked portion of the side wall panel have a small radius of curvature that can be fitted between the inner vertical wall and the outer vertical wall, and the locked portion is returned by returning the side wall panel from the inclined posture to the vertical posture. Is inserted under the locking portion.