JP4170957B2 - Cargo box - Google Patents

Description

  The present invention relates to a cargo transportation box.

  Conventionally, as one form of cargo transportation box, it has front, rear, left and right side wall parts, a ceiling part and a floor part, and at least the rear wall part can be opened and closed, and the floor part has a vibration isolating function. There is what it has (see, for example, Patent Document 1).

That is, the floor has a structure in which a plurality of vibration isolators are interposed between the support and the floor main body, and the vibration isolator has a vibration isolating function.
Japanese Patent No. 3388238

  However, in the freight shipping box described above, the elastic force of the vibration isolator is constant and is not configured to be replaceable. Therefore, cargo having a different weight per unit quantity, for example, There is a problem that it is not possible to fully exhibit the anti-vibration function by adapting to all cargos from light-weight fruits such as strawberries to heavy-weight frozen meats.

  For this reason, there is a problem in that cargo damage due to vibration during transportation cannot be reliably prevented.

Therefore, in the present invention, the front / rear / left / right side wall part, the ceiling part and the floor part are provided, and at least the rear wall part can be freely opened and closed, and the floor part is provided with a vibration isolating function. in the box, the floor portion, the supporting machine frame formed body in which framework formed, attach the floor body detachably via an isolator formed in a band shape and extends in the longitudinal direction, the isolator The present invention provides a freight transport box having a support piece formed by extending in the front-rear direction in a band shape and a plurality of strip-like vibration isolator main pieces detachably attached to the support piece .

  The present invention is also characterized by the following configuration.

  (1) The vibration isolator includes a support piece formed by extending in the front-rear direction, and a plurality of vibration isolator main pieces removably attached to the support piece.

  (2) The vibration isolator main piece is formed in a belt shape along the support piece by an elastic material, and the vibration isolator main piece and the left and right extension pieces forming a part of the support machine frame forming body intersect. A plate-shaped pressure receiving area adjusting piece is interposed in the portion to be used.

(1) The present invention according to claim 1 includes front, rear, left and right side wall parts, a ceiling part, and a floor part, and at least the rear wall part can be opened and closed, and the floor part has a vibration isolating function. In the cargo transport box, the floor is detachably attached to the frame forming support machine frame forming body through a vibration isolator that extends in the front-rear direction and is formed in a band shape. The vibration isolator includes a support piece formed by extending in the front-rear direction in a band shape, and a plurality of band-shaped vibration isolator main pieces detachably attached to the support piece .

  In this way, the vibration isolator is removed from the support machine frame forming body, and the rear wall portion is opened so that it can be taken out from the rear. Can be attached to.

  Accordingly, by preparing in advance a plurality of types of vibration isolator having an elastic force adapted to the weight of the cargo to be accommodated, it is possible to appropriately replace the vibration isolator with an optimum one. In addition, the vibration isolator can be easily maintained.

  As a result, it is possible to satisfactorily prevent cargo damage and the like by ensuring a good vibration preventing function for the floor main body during transportation.

Further, the vibration isolator includes a support piece formed by extending in the front-rear direction and a plurality of vibration isolator main pieces detachably attached to the support piece. In this way, since the vibration isolator is detachably attached to the support piece formed by extending in the front-rear direction, the vibration isolator body is removed from the support machine frame forming body together with the support piece. Each vibration isolator main piece can be removed from the support piece and replaced with a vibration isolator main piece having a required elastic force.

Therefore, the work of replacing the vibration isolator main piece can be easily performed. As a result, it is possible to satisfactorily prevent cargo damage and the like by ensuring a good vibration preventing function for the floor main body during transportation.

(2) In the present invention described in claim 2, the support piece includes a narrow strip-like support piece and left and right guide pieces formed by raising upward from the left and right side edge portions of the support piece. The vibration isolator main piece is formed while being slid on the left and right guide pieces and arranged on the support main piece.

  (3) The vibration isolator main piece is formed in a belt shape along the support piece with an elastic material, and the vibration isolator main piece and the left and right extension pieces forming a part of the support machine frame forming body intersect. A plate-shaped pressure receiving area adjusting piece is interposed in the portion to be performed.

  In this way, by interposing the pressure receiving area adjusting piece at the intersection of the vibration isolator main piece and the left and right extension pieces, the area of the pressure received by the vibration isolator main piece from the floor main body by the pressure receiving area adjusting piece. In other words, since the pressure receiving area can be adjusted easily, the vibration prevention function of the floor body during transportation can be secured well without replacing the vibration isolator, and damage to the cargo can be assured. Can be prevented.

  1 to 4 is a cargo transportation box according to the present invention. The cargo transportation box A includes front, rear, left and right side wall portions 1, 2, 3, and a ceiling portion. 5 and the floor portion 6 form a box body 7, and the front end of the floor portion 6 of the box body 7 is extended forward to form a functional portion support body 8. The refrigeration device 9 is provided on the front wall portion 1 located above 8, and the fuel tank 10 is mounted on the functional unit support 8 to drive the refrigeration device 9, thereby freezing the inside of the box body 7. It is possible. Reference numeral 11 denotes a lifting ladder disposed on the left and right sides of the refrigeration apparatus 9.

  Further, the double-sided side doors 12 are provided on the left and right side wall parts 3 and 4, and the rear wall 2 is formed of a quadrangular frame-like door frame 13 and a double-sided rear door 14, and these doors are provided. The bodies 12 and 14 can be freely opened and closed.

  Further, as shown in FIG. 9, the floor portion 6 is attached to the support machine frame forming body 15 formed with a frame by detachably attaching the floor body 17 through the vibration isolator 16, The floor body 17 thus removed is pushed up from the ground G by a jack 18 (see FIG. 9) as a lifting means, whereby the vibration isolator 16 is removed from the support machine frame forming body 15 and the rear wall 4 is opened. The gist of the present invention resides in the configuration of the floor portion 6.

  Accordingly, each configuration of the floor portion 6 constituting the gist of the present invention, that is, the support machine frame forming body 15, the vibration isolator 16, and the floor body 17 will be described in detail below with reference to FIGS. Explained.

[Description of Support Machine Frame Forming Body 15]
As shown in FIGS. 6A to 8, the support machine frame forming body 15 includes left and right machine frame forming pieces 15a and 15a extending in the front-rear direction, and front and rear machine frame forming pieces extending in the left-right direction. A rectangular frame-shaped machine frame main piece is formed from 15b and 15c, and a plurality of (left and right) machine frame forming pieces 15a, 15a extending in the left-right direction at the front, middle and rear end portions (this embodiment) 3) main horizontal machine frame forming pieces 15d, 15e, 15f are installed, and a number of left and right machine frame forming pieces 15a, 15a are arranged with a number of sub horizontal machine frame forming pieces 15g as left and right extending pieces. Are installed at approximately equal intervals.

  Here, as shown in FIG. 7, the main horizontal machine frame forming pieces 15d, 15e, 15f are formed in a square pipe shape having a square cross section, while the sub horizontal machine frame forming pieces 15g are formed in a U-shaped cross section. ing.

  As shown in FIGS. 6 (b) to 9 (c), a thin plate 20 made of FRP is stretched on the support machine frame forming body 15 formed as described above. On the left and right side portions of the front portion, the central portion, and the rear portion, push-up openings 21 are formed between the auxiliary horizontal machine frame forming pieces 15g and 15g adjacent in the front-rear direction.

  And in the center part of the right and left of the thin plate 20, the inspection port 22 is formed in the front part, the center part, and the rear part so as to be positioned between the auxiliary horizontal machine frame forming pieces 15g and 15g adjacent in the front-rear direction.

  As shown in FIGS. 6B to 9, a plurality of (four in the present embodiment) vibration isolators 16 are arranged on the thin plate 20 at regular intervals in the left-right direction. ing.

[Description of vibration isolator 16]
Each vibration isolator 16 includes a support piece 23 formed by extending in the front-rear direction, and a plurality of vibration isolator main pieces 24 detachably attached to the support piece 23.

  The support piece 23 is formed by extending a narrow strip-like support main piece 23a extending between the front wall portion 1 and the rear wall portion 2 and the right and left side edges of the support main piece 23a. The left and right guide pieces 23b and 23b are formed.

  Further, the vibration isolator main piece 24 is formed in a band shape extending in the front-rear direction along the support piece 23 by an elastic material such as an elastic rubber material, and the vibration isolator main piece 24 is a left / right guide. The upper groove 25 is formed to have a thickness that is approximately twice the height of the pieces 23b, 23b, and extends in the left-right direction to approximately one third of the upper part. A large number of the same intervals are formed in the front-rear direction, and a lower groove 26 extending in the front-rear direction is formed in approximately one-third of the lower portion. Many have formed.

  In this way, the vibration isolator main piece 24 is partially bent easily.

  Then, a plate-shaped pressure receiving area adjusting piece 27 is interposed at a portion where the vibration isolator main piece 24 and the sub horizontal machine frame forming piece 15g forming a part of the support machine frame forming body 15 intersect.

[Description of floor unit 17]
As shown in FIGS. 6 (c) to 9, the floor portion main body 17 is formed of a rectangular plate-like heat insulator 28 and a cooling air flow path forming body 29 placed on the heat insulator 28.

  The heat insulating body 28 is covered with a casing body 28b with a heat insulating material 28a such as a styrofoam formed in a rectangular plate shape, and a lower side forming piece of the door frame 13 is formed on a rear end edge portion of the heat insulating body 28. 13a is connected continuously.

  Further, the cooling air flow path forming body 29 is formed with a large number of protrusions 29a extending in the front-rear direction at intervals in the left-right direction, and in the front-rear direction between the protrusions 29a, 29a adjacent in the left-right direction. An extending cooling air passage 29b is formed.

  7 and 8, 30 is a front load receiving piece, 31 is a side load receiving piece, 32 is packing, 33 and 34 are packing retaining pieces, and 35 is a front load receiving body.

  Next, the assembly structure of the floor 6 configured as described above will be described with reference to FIGS. 6 and 7.

[Assembly structure of floor 6]
As shown in FIGS. 6 and 7, the floor 6 has four vibration isolator bodies 16, 16, 16, 16 on the main horizontal machine frame forming pieces 15d, 15e, 15f and the sub horizontal machine frame forming pieces 15g. Placed at a certain interval in the left-right direction, placed the floor body 17 on the vibration isolator 16, 16, 16, 16, in the same state, the floor body 17 and the vibration isolator 16, A connecting bolt 40 extending in the vertical direction is passed through 16, 16 and 16, and the main body and auxiliary horizontal machine frame are formed with the floor main body 17 and the vibration isolator 16, 16, 16, 16 with the connecting bolt 40. The pieces 15d, 15e, 15f, and 15g are detachably connected and fixed integrally.

  Here, 15h is a rear connecting piece connected to the main horizontal machine frame forming piece 15f, 15i is a front connecting piece connected to the sub horizontal machine frame forming piece 15g, 41 is a vibration isolating piece, and 42 is a vibration isolating piece. One-piece receiver 43 is a nut.

  Further, the lower forming piece 13a of the door frame body 13 includes rear connecting bolts on the rear machine frame forming piece 15c via upper and lower vibration isolating pieces 44 and 45 and upper and lower vibration isolating piece receivers 46 and 47. 48 is detachably connected and fixed. 49 is a rear nut.

  Next, an operation procedure for removing the vibration isolator 16 from the support machine frame forming body 15 will be described with reference to FIG.

[Explanation of removal work procedure of vibration isolator 16]
(1) As shown in FIG. 9 (a), the cargo transportation box A according to the present invention is placed on the movable carriage B and moved to a predetermined place.

  Then, the rear door body 14 is opened, and in this state, the floor main body 17 and the vibration isolator 16, 16, 16, 16 are main / sub horizontal machine frame forming pieces 15d, 15e, 15f, While removing the connecting bolt 40 connected to 15g, the lower forming piece 13a of the door frame 13 is attached to the rear machine frame forming piece 15c with the upper and lower vibration isolating pieces 44, 45 and the upper and lower vibration isolating piece receivers. The rear connecting bolt 48 connected via 46, 47 is removed. 50 is an auxiliary square for pushing up.

  (2) As shown in FIGS. 9 (a) and 9 (b), the ground located below the floor 6 and directly below each push-up opening 21 with the rear door 14 open. The jacks 18 are respectively arranged on G, and the floor main body 17 is pushed up (jacked up) by the jacks 18 through the auxiliary square members 50 for raising.

  (3) As shown in FIG. 9 (c), each anti-vibration body 16 can be easily removed by pulling each anti-vibration body 16 rearward through the opening 51 of the opened rear door body 14.

  Then, replacement work or maintenance of the vibration isolator main piece 24 of each pulled out vibration isolator 16 is easily performed.

  Moreover, the attachment work of each vibration isolator 16 can be easily performed by following the reverse procedure of the above-described removal work.

  Therefore, by preparing a plurality of types of vibration isolator main pieces 24 having elasticity suitable for the weight of the cargo to be accommodated in advance, it can be appropriately replaced with the optimum vibration isolator main piece 24. .

  As a result, the vibration preventing function of the floor main body 17 during transportation can be secured satisfactorily and cargo damage and the like can be reliably prevented.

  At this time, since the vibration isolator 16 is detachably attached to the support piece 23 formed by extending in the front-rear direction, the vibration isolator main piece 24 is detachably attached to the support machine frame forming body 15 together with the support piece 23. Thus, each vibration isolator main piece 24 can be detached from the support piece 23 and replaced with the vibration isolator main piece 24 having a required elastic force.

  Therefore, the work of replacing the vibration isolator main piece 24 can be easily performed. As a result, the vibration preventing function of the floor main body 17 during transportation can be secured satisfactorily and cargo damage and the like can be reliably prevented.

In addition, by providing a plate-shaped pressure-receiving area adjustment piece 27 at a portion where the vibration-proof body piece 24 and the auxiliary horizontal machine frame forming piece 15g intersect, the vibration-proof body piece 24 is formed by the pressure-receiving area adjustment piece 27. Since the area of the pressure received from the floor body 17, that is, the pressure receiving area can be easily adjusted, the pressure receiving area adjusting pieces 27 of different plate pressure (thickness) and size can be used without replacing the vibration isolator 16. By simply replacing the required heavy pressure area adjustment piece 27 from the inside, it is possible to satisfactorily ensure the vibration preventing function of the floor main body 17 during transportation, and reliably prevent cargo damage and the like.

  Further, in the present embodiment, the vibration isolator main piece 24 is pulled out integrally with the support piece 23, but it is also possible to draw out only the vibration isolator main piece 24 backward while leaving the support piece 23 as it is.

  In this case, the support piece 23 is formed from a narrow strip-like support piece 23a and left and right guide pieces 23b and 23b formed by raising upward from the left and right side edge portions of the support piece 23a. Therefore, when the vibration isolator main piece 24 is supported on the support piece 23, the front end portion of the vibration isolator main piece 24 is placed on the support main piece 23a, and the vibration isolator main piece in the same state. If the vibration isolator main piece 24 is pushed in while sliding forward, the vibration isolator main piece 24 is guided while sliding on the left and right guide pieces 23b and 23b, and the vibration isolator main piece 24 is smoothly and reliably supported. Can be placed on top.

[Description of Vibration Isolator 16 as Other Embodiment]
FIG. 10 shows an anti-vibration body 16 as another embodiment. The anti-vibration body 16 has the same basic structure as the above-described anti-vibration body 16, but the anti-vibration body main piece 24 has the same structure. The structure is different.

  That is, the vibration isolator main piece 24 of the present embodiment has the upper and lower vibration isolating rubber pieces 58, 59 interposed between the ring mounts 55, 56, 57 arranged in a three-layer state at the upper part, the central part, and the lower part. Such a vibration isolator main piece 24 is detachably attached by attachment bolts 60 to portions where the support piece 23 and the auxiliary horizontal machine frame forming piece 15g intersect each other. 61 is a batting plate.

  In this way, depending on the cold insulation temperature in the box body 7, for example, when the cold insulation temperature is below freezing, the vibration isolation rubber may not function. The main piece 24 can be adopted as appropriate.

[Description of anti-vibration body 16 as an example of transformation]
FIG. 11 is a modification example of the above-described vibration isolator 16. In the vibration isolator 16, a pair of left and right vibration isolator main pieces 24, 24 are attached in one place.

  Thus, since the pair of left and right vibration isolator main pieces 24, 24 are provided at one place, a required elastic function can be ensured according to the weight of the cargo to be loaded.

  Further, in the present embodiment, the vibration isolator 16 and the vibration isolator rubber are disposed by disposing the vibration isolator 16 at a position not affected by the freezing temperature in the box body 7, that is, below the floor body 17. The anti-vibration function of the pieces 58 and 59 can be secured satisfactorily.

  In addition, although the structure of the floor part 6 of the cargo transportation box A according to the present invention has been described with respect to the frozen material transportation box specification in the present embodiment, the present invention is not limited to this, and the dry matter transportation box specification. It can also be applied as a box specification for transporting cold storage objects.

  The structure of the floor portion 6 of the cargo transportation box A according to the present invention is a container for loading a small car such as a van type car or a wing car on a large car, and various transportation boxes such as a rail freight container. Can be applied to the body floor.

The side view of the box for cargo transportation concerning the present invention. The top view of the box for the cargo transportation. The front view of the box for the cargo transportation. The rear view of the box for the cargo transportation. Sectional side view of the same freight shipping box. Exploded view of the floor. Sectional side explanatory drawing of the floor part. Cross-sectional back explanatory drawing of the left half part of the floor part. Explanatory drawing of work for removing vibration isolator. Explanatory drawing of the back surface of the vibration isolator as other embodiment. The back surface explanatory view of a vibration isolator as a modification example.

Explanation of symbols

A Cargo box 1 Front wall part 2 Rear wall part 3 Left side wall part 4 Right side wall part 5 Ceiling part 6 Floor part

Claims (3)

In a freight shipping box having front, rear, left and right side walls, a ceiling and a floor, at least the rear wall being openable and closable, and having a vibration-proof function on the floor,
The floor, the supporting machine frame formed body in which framework formed Attach the floor body detachably via an isolator formed in a band shape and extends in the longitudinal direction,
The vibration isolator comprises a support piece formed by extending in the front-rear direction in a band shape, and a plurality of strip-like vibration isolator main pieces detachably attached to the support piece . Box. The support piece is formed of a narrow strip-shaped support book piece, and left and right guide pieces formed by rising upward from the left and right side edge portions of the support book piece,
  2. The cargo transporting box according to claim 1, wherein the vibration isolator main piece is guided while being slid on the left and right guide pieces and arranged on the support main piece. The vibration isolator main piece is formed in a band shape along the support piece with an elastic material, and the vibration isolator main piece and a left and right extension piece forming a part of the support machine frame forming body intersect. 2. A cargo transportation box according to claim 1 , wherein a plate-shaped pressure receiving area adjusting piece is interposed.

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