JP2004292026A - Vibration-proof container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration-proof container in which a vibration-proof floor is placed without reducing the load storage capacity of the container, and without changing the outer measurements, strength or handling characteristics of the same. <P>SOLUTION: An inside floor 10 as a vibration-proof floor is placed relatively movably in the vertical direction through a plurality of vibration-proof elements 20, 20 on the floor 2 in a container 1. Between the floor 2 of the container 1 and the inside floor 10 at the lower part of the container 1 side wall, a fork entry 26 for inserting a fork nail of a lift is formed. The space around the elements 20 is an insertion space for the fork nail to be inserted from the entry 26, and the space is provided roughly at the same height as and in parallel with the elements 20 between the inside floor 10 and the floor 2 of the container 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention belongs to a technical field related to a vibration-proof container for suppressing vibration of cargo loaded and accommodated therein.
[0002]
[Prior art]
In general, this type of anti-vibration container is lifted and conveyed by a lift device such as a forklift when loading or unloading cargo, so that the floor has a fork entry height for inserting fork claws for the lift. Double floor structure with space. Conventionally, anti-vibration containers of this double-floor structure can be broadly classified into those of an internal installation type and those of an overall anti-vibration type. As shown in Patent Document 1, for example, the former built-in type anti-vibration container has a lower internal floor fixed to the container container on a floor portion in the container container, and is spaced from the floor portion of the container. The upper inner floor (vibration isolating floor) on which cargo is loaded is placed and supported on the lower inner floor via a vibration isolating element so as to be relatively movable in the vertical direction. , A fork entry for inserting a lift fork claw is opened at a position between the floor and the lower inner floor. Further, a stopper for stopping the upper inner floor from shaking more than a predetermined amount with respect to the container is appropriately provided.
[0003]
On the other hand, the latter type of the whole vibration-proof type is mounted on a base such that the floor of the container container is relatively movable in the vertical direction via a vibration-proof element as shown in Patent Documents 2 to 4, for example. And a floor portion in the container is used as an anti-vibration floor to place cargo thereon, and a fork entry is provided between the base and the floor portion of the container container. . Also, in this type of anti-vibration container, a stopper is provided to stop the container container from swinging more than a predetermined amount with respect to the base.
[0004]
In addition, as a vibration isolating pallet device having a structure similar to that of a general vibration isolating container, which is not a container, as shown in Patent Literature 5, panels on which cargo is placed have different cushioning characteristics. It has been proposed to support with two types of legs and provide a fork entry between the supports.
[0005]
Further, as an example of the above-mentioned vibration damping element, as shown in Patent Document 6, for example, an annular metal plate and an annular elastic rubber having the same diameter are alternately laminated such that the respective central axis directions are vertically. The vibration isolating element is arranged between upper and lower plates to prevent transmission of vertical vibration and the like between the two plates. In Patent Document 6, furthermore, an inner cylinder fixed to the other plate is concentrically arranged in an outer cylinder fixed to one plate, and a cylindrical elastic rubber and a sleeve are alternately arranged between them. There is also shown a damper element in which the vibration in the vertical direction between the plates is attenuated by superimposing them.
[0006]
Further, as an example of the stopper, Patent Literature 7 discloses that a U-shaped lower pedestal having upper and lower pieces is fixed to an installation surface, while a cross section having upper and lower pieces is provided on a side surface of a device installed on the installation surface. The upper part of the upper frame is fixed between the upper part of the lower part and the upper part of the upper part or the lower part of the upper part of the lower part. The elastic body is fixed to one of the upper surfaces of the lower mount, respectively, to prevent the device from shaking more than a predetermined amount by preventing the upper piece of the upper mount from being restricted between the upper and lower pieces of the lower mount. Has been proposed.
[0007]
[Patent Document 1]
JP 2002-145269 A
[Patent Document 2]
Published Japanese Utility Model Application No. Hei 6-27557
[Patent Document 3]
Japanese Patent No. 2676066
[Patent Document 4]
JP 2002-255279 A
[Patent Document 5]
JP-A-11-189242
[Patent Document 6]
Japanese Utility Model Publication No. 62-36998
[Patent Document 7]
Japanese Utility Model Publication No. 60-30552
[0008]
[Problems to be solved by the invention]
However, the above conventional anti-vibration container has a unique problem as described below, regardless of whether it is of the internal built-in type or the whole anti-vibration type.
[0009]
In other words, the internal built-in type anti-vibration container has a structure in which the lower inner floor is fixed on the floor in the container with a space, and the upper inner floor for loading cargo is arranged on this lower inner floor. Therefore, the position of the upper inner floor is increased by the interval of the space for arranging the vibration proof element between the upper inner floor and the lower inner floor, and even if the container container has the same size, the space for arranging the vibration proof element is increased. However, there is a difficulty that the internal cargo accommodation volume becomes relatively small.
[0010]
On the other hand, in the case of the whole anti-vibration container, the container container is arranged on the base and the anti-vibration element is arranged together with the fork entry in the meantime. The cargo storage volume in the container does not decrease.
[0011]
However, on the other hand, in the case of the whole anti-vibration type anti-vibration container, the entire container container is arranged on the base via the anti-vibration element, so that the container container itself shakes or vibrates with respect to the base. It is necessary to set the position of the container on the container loading surface in consideration of the swing displacement when the container is loaded. For example, when a container is loaded into a cargo compartment of a means of transport such as an aircraft, a ship, a railroad, or a truck, the container container itself shakes and displaces. In order to avoid this contact, containers must be loaded with a certain gap between adjacent containers and walls, etc., which reduces the container loading space in the cargo compartment and reduces the amount of container loading. Less.
[0012]
Further, the outer dimensions of the container container may be reduced by an amount corresponding to the swing displacement, but this will reduce the cargo accommodation volume of the container.
[0013]
The present invention has been made in view of the above points, and an object of the present invention is to improve the structure of an anti-vibration container without reducing the container's cargo storage capacity, and to reduce the container's external dimensions, strength, and handling. An object of the present invention is to make it possible to arrange an anti-vibration floor in the interior of the container without changing its performance, thereby achieving both the maintenance of an increased cargo storage capacity of the container and the assurance of the anti-vibration property.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, an anti-vibration floor is supported on a floor in a container via an anti-vibration element, and a space around the anti-vibration element is used as an insertion space for a fork claw for a lift. The space for inserting the fork claws is provided between the floor of the container and the vibration-isolating floor at substantially the same height as the vibration-isolating element and in parallel therewith.
[0015]
Specifically, according to the first aspect of the present invention, an internal floor on which cargo is loaded is placed and supported on a floor in a container container formed of a box so as to be relatively movable in a vertical direction via a plurality of vibration isolation elements. A stopper is provided on the container container to stop the internal floor from swaying more than a predetermined amount, and a lift fork claw is provided between the floor portion of the container container and the internal floor at a lower side wall of the container container. A fork entry for insertion is opened.
[0016]
According to the above configuration, the cargo carried into the container is placed on the internal floor. This internal floor is supported on the floor of the container via a plurality of anti-vibration elements so as to be relatively movable in the vertical direction, and serves as an anti-vibration floor. Can be prevented.
[0017]
Since the fork entry is opened between the floor and the inner floor at the lower part of the side wall of the container, the space around the vibration isolating element between the floor and the inner floor of the container is reduced by the fork. This is the space for inserting the lift fork claw inserted from the entry. In other words, the insertion space and the vibration isolating element are arranged substantially at the same height between the floor of the container and the inner floor, and the inner floor is arranged below the container in the container by this arrangement structure. Thus, a large cargo accommodation volume can be secured in the container container as compared with a conventional anti-vibration container of a built-in type.
[0018]
In addition, an inner floor as an anti-vibration floor is provided on the floor inside the container container, and cargo is placed on it, so the container container itself is a normal box, which is The container is placed directly on the floor in the room or on another container, so that the container itself does not shake or vibrate as in the case of a full vibration-proof type vibration-proof container. Therefore, it is only necessary to load containers with a relatively small gap that does not require consideration of swinging displacement between adjacent containers and the walls of the cargo compartment, and to increase the container loading space and loading volume in the cargo compartment. In addition to this, it is not necessary to reduce the outer dimensions of the container container by the amount corresponding to the swing displacement, which can contribute to an increase in the cargo storage capacity of the container.
[0019]
According to the second aspect of the present invention, the claw receiving portion for receiving the fork claw inserted from the fork entry is provided on the upper surface of the floor of the container container. As a result, the nail receiving portion is fixed to the floor portion of the container container itself, and even if the vertical position of the internal floor changes due to the load deformation of the vibration isolating element due to the placement of the cargo on the internal floor of the container container. However, the position of the claw receiving portion does not change, and the positioning when inserting the fork claw into the claw receiving portion via the fork entry becomes easy.
[0020]
In addition, since the claw receiving portion is fixed to the floor portion of the container container itself, even when the container container is transported in a state where the container container is lifted by inserting fork claws, cargo on the internal floor can be isolated.
[0021]
Furthermore, since the claw receiving portion does not move relative to the floor portion of the container container, if the claw receiving portion and the fork entry are sealed so as not to communicate with other portions, the vibration isolating element can be connected to the outside in the container container. The communication can be maintained in a disconnected state, the operation stability of the vibration isolating element can be secured even when the container is left outdoors, and the specifications of the container can be simplified and improved.
[0022]
On the other hand, according to the third aspect of the invention, a claw receiving portion for receiving a fork claw inserted from a fork entry is provided on a lower surface of the inner floor. In this case, since the claw receiving portion is provided on the inner floor itself, a load is applied to the inner floor when the fork claw is inserted and the container container is lifted, thereby increasing the strength of only the inner floor. If this is done, the weight of the entire container can be reduced, which is advantageous, for example, as an anti-vibration container for aircraft.
[0023]
In a fourth aspect of the present invention, it is a specific matter that a damper element for attenuating vibration of the internal floor is provided between the floor of the container container and the internal floor. Thus, the vibration of the internal floor can be attenuated by the damper element.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its applications, or its uses.
[0025]
(Embodiment 1)
1 to 3 show an anti-vibration container A according to a first embodiment of the present invention. Reference numeral 1 denotes a container having a rectangular box body, in which cargo W (see FIG. 2) is stored. The container container 1 has, for example, a floor portion 2 (bottom portion) made of a rectangular flat steel plate or the like having a reinforcing bead (not shown), and a groove portion is opened outward on the entire outer peripheral edge of the upper surface of the floor portion 2. A base frame portion 3 made of a channel steel or the like having a U-shaped cross section which is welded and erected in a state in which the base frame portion 3 is formed, and one side portion is provided on the upper surface of the base frame portion 3 at the center side (inside) of the floor portion 2. And a connecting portion 4 made of an angle iron or the like having an L-shaped cross section arranged so as to have a horizontal portion 4a extending in the horizontal direction toward the main portion and a vertical portion 4b extending in the other side in the vertical direction. The horizontal portion 4a is placed on the upper surface of the base frame portion 3 and integrated by welding, and the vertical portion 4b extends upward from outside the upper surface of the base frame portion 3. The lower end of a container body 5 formed of a rectangular box opened to the lower side is put on the outer surface of the vertical portion 4b of the connecting portion 4 and welded and integrated, and the floor 2 and the base frame described above are integrated. The container 3, including the hermetically closed box, is constituted by the portion 3, the connection portion 4, and the container body 5.
[0026]
Although not shown, a loading / unloading port for loading / unloading the cargo W into / from the container 1 is opened in the side wall of the container body 5, and the loading / unloading port is opened and closed by a door. Further, as the floor portion 2, instead of the steel plate having the reinforcing beads as described above, for example, a honeycomb structure panel in which a vertically opened honeycomb material is sandwiched between upper and lower plate materials and welded and integrated to be used may be used. it can.
[0027]
On the floor 2 in the container 1, for example, five internal floors 10 made of a rectangular flat steel plate or the like and smaller than the floor 2 by a predetermined dimension (for example, five or more Good) is mounted and supported via the vibration isolating elements 20, 20,... So as to be relatively movable in the vertical direction, and the cargo W carried into the container 1 is placed on the internal floor 10. .
[0028]
As shown in FIG. 1 and FIG. 2, the inner floor 10 includes an upper plate 11 and a lower plate 12 slightly larger than the upper plate 11 and reinforcing members 14, 14,. Are interposed by welding, and a side plate 13 having a substantially L-shaped cross section is arranged between the outer peripheral edges of the upper plate 11 and the lower plate 12 so as to close the gap therebetween. The lower end is welded to the upper surface of the outer peripheral edge of the upper plate 11, and the lower end is welded to the upper surface of the outer peripheral edge of the lower plate 12. The inner floor 10 may have a honeycomb structure in which a honeycomb material that is vertically opened is sandwiched between the upper and lower plates 11 and 12 and integrated by welding.
[0029]
As shown in FIG. 3, the five anti-vibration elements 20, 20,... Are formed at the four corners and the center of the floor 2 through holes 15 formed through the lower plate 12 of the internal floor 10. (See FIGS. 1 and 2). Each of the anti-vibration elements 20 is disposed between each of four (or a plurality of other than four) disk-shaped metal plates 21, 21,. The elastic rubbers 22, 22,... Having a circular cross section of, for example, three (may be other than three) are concentric so that the center axis direction of each metal plate 21 and each elastic rubber 22 is the vertical direction. The metal plate 21 at the upper end is formed as a mounting portion and is formed on the lower surface of the upper plate 11 of the inner floor 10, and the metal plate 21 at the lower end is also formed as a mounting portion to form the floor portion 2 of the container 1. Are fixed to the upper surface of each of them so that they cannot move in the horizontal and horizontal directions. Note that, as shown in FIG. 10, the vibration isolating element 20 may be formed of a coil spring.
[0030]
A front portion (for example, a lower portion in FIG. 3) of the base frame portion 3 located below the side wall of the container container 1 and between the floor portion 2 and the inner floor 10 of the container container 1 has a base frame. Two left and right rectangular fork entries 26, 26 (only the right side is shown in FIGS. 1 and 2) having a height from the lower end to the vicinity of the upper end of the portion 3 are opened, and a rear portion (for example, Similar left and right rectangular fork entries 26, 26 are opened in the upper part in FIG. 3). Each of the fork entries 26 is for inserting a lift fork claw (not shown) in a lift device such as a forklift, for example, and is provided between the front fork entries 26 and the rear fork entries 26 and 26. Are aligned with each other, and when viewed from the front side (rear side) of the container A, the front fork entries 26, 26 on the left side are five anti-vibration elements between the floor 2 of the container 1 and the inner floor 10. The right and left fork entries 26, 26 between the pair of front and rear vibration isolating elements 20, 20 located at the left end of the 20, 20,... Is opened between the pair of front and rear vibration isolating elements 20 and 20 located at the center and one vibration isolating element 20 at the center.
[0031]
On the upper surface of the floor 2 of the container 1, two left and right claw receiving portions 27 are provided so as to correspond to the left and right fork entries 26, 26 so as to connect them. I have. Each of the claw receiving portions 27 is a rectangular tube having substantially the same size as the fork entry 26, and the left claw receiving portion 27 is located at the left end of the above-described five vibration isolation elements 20, 20,. The right claw receiving portion 27 is disposed between the front and rear pair of vibration isolating elements 20 and 20 and the center one of the vibration isolating elements 20, and the right and left pair of vibration isolating elements 20 and 20 located at the right end. 20 and one vibration-proof element 20 at the center, and both are fixed by welding to the upper surface of the floor 2 at the lower surface. Fork claws inserted from the fork entry 26 on the front side (or the rear side) may be inserted into each claw receiving portion 27, and the fork claws are received by the claw receiving portions 27, 27. Thereby, the container 1 is lifted by the lift movement of the fork claw.
[0032]
Further, the lateral portion 4a of the connecting portion 4 in the container 1 is located closer to the center (inside) of the floor 2 than the base frame 3 and above the outer peripheral edge of the lower plate 12 in the internal floor 10. In this manner, a stopper 30 that projects by a predetermined dimension and that stops the predetermined or more shaking of the internal floor 10 by being in contact with the outer peripheral edge of the lower plate 12 of the internal floor 10 is formed at this protruding portion. The stopper 30 is in contact with the outer peripheral edge of the lower plate 12 in a non-loaded state where the cargo W is not loaded on the inner floor 10 as shown in FIG. In a cargo loading state in which the cargo W is loaded on the inner floor 10 as shown in FIG. 2, the inner floor 10 sinks down and separates from the outer peripheral edge of the lower plate 12. The shaking of the internal floor 10 beyond a predetermined level is stopped.
[0033]
Therefore, in the anti-vibration container A of this embodiment, the inner floor 10 in the container container 1 is urged in the upward direction by the elastic force of the anti-vibration elements 20, 20,. In a non-loading state in which is not accommodated, as shown in FIG. 1, the outer peripheral edge of the lower plate 12 of the inner floor 10 is in contact with the stopper 30 in the connection portion 4 of the container container 1 and is at the rising end position.
[0034]
In this state, the door of the container body 5 of the container 1 is opened, and the cargo W is carried into the container 1, and the cargo W is placed on the inner floor 10. As a result, the container A enters a cargo loading state. In this cargo loading state, as shown in FIG. 2, the inner floor 10 sinks and descends while compressively deforming the vibration isolating elements 20, 20,. The outer peripheral edge is separated from the stopper 30 of the container 1. Then, the anti-vibration container A is lifted and conveyed by a lift device such as a forklift in the loaded state of the cargo, carried into a cargo room of a transportation means such as an aircraft, a ship, a railroad, a truck, and placed on the floor. Or, they are stacked and transported.
[0035]
At this time, since the inner floor 10 is supported on the floor 2 of the container 1 via a plurality of anti-vibration elements 20, 20,. It is possible to prevent the cargo W placed on the internal floor 10 from vibrating or the like due to external vibration during transportation of A or the like, and to prevent the cargo W from being damaged.
[0036]
Further, when the inner floor 10 shakes in the left-right direction or the up-down direction due to the vibration from the outside of the container A, if the swing is equal to or more than a predetermined value, the outer peripheral edge of the lower plate 12 of the inner floor 10 Abuts against the stopper 30, and the abutment suppresses the swing of the internal floor 10 beyond a predetermined level, thereby preventing the cargo W from collapsing or being damaged.
[0037]
In the case of this embodiment, two fork entries 26, 26 on the left and right sides of the base frame 3 located between the floor 2 of the container 1 and the inner floor 10 below the side wall of the container 1 And two claw receiving portions 27 on the upper surface of the floor 2 of the container container 1 are arranged so as to connect the fork entries 26 corresponding to the front and rear, and are welded by welding. Since it is fixed, in the space between the floor 2 of the container 1 and the inner floor 10, a pair of front and rear vibration isolating elements 20 and 20 located at the left end and one central vibration isolating element 20 The space between the pair of front and rear vibration isolating elements 20 located at the right end is the space of the claw receiving portions 27, 27, that is, for the lift inserted into the claw receiving portions 27 from the fork entry 26. Fork claw insertion space To become. That is, the fork claw insertion space and the vibration isolating elements 20, 20,... Are arranged at substantially the same height between the floor 2 of the container 1 and the inner floor 10, so that the container 1 has a structure in which an inner floor 10 is merely arranged at the lower part of the inside. As a result, it is possible to secure a large cargo accommodation volume in the container container 1 as compared with the conventional anti-vibration container of the internal installation type.
[0038]
Further, an inner floor 10 is provided as a vibration-isolating floor on the floor 2 in the container 1, and the cargo W is placed thereon. Often, it will be placed directly on the floor of the cargo compartment at the floor 2 or on the top of another container (either of anti-vibration type or non-vibration type). As a result, the container itself does not sway as in the case of the whole anti-vibration type anti-shake container, and almost no consideration is given to the swaying displacement of the container A with respect to the adjacent container or the wall of the cargo compartment. Loading can be performed with a relatively small gap, so that the container loading space and the loading amount in the cargo hold can be increased. Further, it is not necessary to reduce the outer dimensions of the container container 1 by an amount corresponding to the swing displacement, which can contribute to an increase in the cargo accommodation capacity of the container A.
[0039]
Furthermore, since the left and right claw receiving portions 27, 27 for receiving the fork claws inserted from the fork entry 26 are directly welded and fixed to the upper surface of the floor portion 2 of the container 1, the position of the inner floor 10 is temporarily set. As shown in FIG. 1, the cargo W is not loaded on the internal floor 10, and the raised end position in the unloaded state is prevented, and the cargo W is placed on the internal floor 10 of the container 1 as shown in FIG. 2. Even if the vibration elements 20, 20,... Change from the rising end position in the non-loaded state to the lowered position in the cargo-loaded state due to the compression deformation, the positions of the claw receiving portions 27, 27 follow. It does not change. For this reason, the positioning when inserting the fork claws into the claw receiving portions 27, 27 via the fork entries 26, 26 can be easily performed.
[0040]
Further, since the claw receiving portions 27, 27 are fixed to the floor portion 2 itself of the container container 1, even when the container container 1 is transported in a state where the container container 1 is lifted by inserting fork claws, the vibration isolating element 20, The vibration transmission function to the cargo W on the internal floor 10 can be prevented by operating the vibration isolating function of 20,.
[0041]
Further, since the claw receiving portions 27, 27 do not relatively move with respect to the floor portion 2 of the container container 1 as described above, the opening at both ends (front and rear ends) in the longitudinal direction of the cylindrical claw receiving portions 27, The fork entry 26 communicates only with the space in the claw receiving portion 27 between the fork entry 26 opened in the base frame portion 3 of the container 1 and the inside of the floor portion 2 of the container container 1 outside the claw receiving portion 27. If a seal is provided so as not to communicate with the space between the floor 10 (this seal may be performed by welding or the interposition of a sealing material), each anti-vibration element 20 communicates with the outside in the container 1. It can be kept off. Thus, even if the container A is left outdoors, the operation stability of each of the vibration isolation elements 20 can be secured, and the specifications of the container A can be simplified.
[0042]
Furthermore, since the lateral portion 4a of the connecting portion 4 disposed at the lower portion of the side wall of the container container 1 is projected into the container container 1 to form the stopper 30 for preventing the internal floor 10 from swinging more than a predetermined amount, it is compact and compact. A stopper 30 having a simple structure is obtained.
[0043]
When the size of the inner floor 10 is increased to increase the cargo loading area, as shown in FIG. 4, the outer peripheral edge of the upper floor 11 of the inner floor 10 is near the vertical portion 4b of the connection portion 4. The upper end of the side plate 13 is welded to the lower surface of the upper plate 11 slightly inside from the outer peripheral edge, and the outer peripheral edge of the upper plate 11 and the outer peripheral edge of the lower plate 12 (side plate). 13 may be sandwiched between the stopper 30 and the lower end of the stopper 13.
[0044]
(Embodiment 2)
5 and 6 show Embodiment 2 of the present invention (note that the same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals and detailed description thereof is omitted). It has been changed.
[0045]
That is, in this embodiment, the claw receiving portions 27 are not fixed to the upper surface of the floor portion 2 of the container container 1 as in the first embodiment, and the left and right claw receiving portions 27, 27 are the lower plates of the inner floor 10. 12 is fixed to the lower surface by welding.
[0046]
Further, each claw receiving portion 27 of this embodiment is not a rectangular tube-shaped member as in the first embodiment, but a U-shaped cross-section opened to the lower side. It is welded to the lower surface of the lower plate 12. The reason for this is that when the internal floor 10 moves up and down between the non-loading state shown in FIG. 5 and the cargo loading state shown in FIG. 6, the claw receiving portions 27, 27 are moved with the vertical movement of the internal floor 10. Is vertically changed relative to the fork entries 26, 26 located at the fixed positions of the base frame 3 of the container 1, so that the fork claws inserted from the fork entries 26, 26 may change even if the movement changes. The purpose is to ensure that it is inserted into the claw receiving portions 27, 27. Thereby, even if the position of the internal floor 10 changes between the non-loading state shown in FIG. 5 and the cargo loading state shown in FIG. be able to.
[0047]
Other configurations are the same as those of the first embodiment. Therefore, in this embodiment, the same operation and effect as those of the first embodiment can be obtained.
[0048]
In particular, in this embodiment, since the claw receiving portions 27 are provided on the inner floor 10 itself, a load is applied to the inner floor 10 when the container container 1 is lifted by inserting the fork claws. Therefore, the strength of only the inner floor 10 needs to be increased, and the weight of the entire container A can be reduced correspondingly, which is useful, for example, as an anti-vibration container for an aircraft.
[0049]
Also in the second embodiment, when the cargo loading area of the inner floor 10 is increased, the outer peripheral edge is connected as the upper plate 11 of the inner floor 10 as shown in FIG. A large one located near the vertical part 4b of the part 4 is used, and the stopper 30 is sandwiched between the outer peripheral part of the upper plate 11 and the outer peripheral part of the lower plate 12 (the lower end of the side plate 13). Just fine.
[0050]
(Other embodiments)
In each of the above embodiments, a plurality of metal plates 21, 21,... And elastic rubbers 22, 22,. 8 to 10, the anti-vibration element 20 is changed to another type, or between the floor 2 of the container 1 and the inner floor 10 as shown in FIGS. In addition to the vibration isolating element 20, a damper element 33 for attenuating the vibration of the internal floor 10 may be provided. The damper element 33 is arranged so as not to interfere with the vibration isolating elements 20, 20,... And the claw receiving portions 27, 27.
[0051]
8 to 10 show the three examples. In the example shown in FIG. 8, the damper elements 33 are arranged on the sides of each of the vibration isolating elements 20 so as to be adjacent to the respective vibration isolating elements 20 so as to form a pair. That is, the upper and lower metal plates 21 and 21 as mounting portions in the vibration isolating element 20 are respectively extended horizontally, and the extended portions of the upper metal plates 21 are mounted on the lower surface of the upper plate 11 of the inner floor 10. The extension of the metal plate 21 at the lower end is fixed on the floor 2 of the container 1. The damper element 33 includes a cylindrical outer cylinder 34 fixed by welding or the like on an extension of the metal plate 21 (attachment portion) at the lower end of the vibration isolation element 20 and a metal plate at the upper end of the vibration isolation element 20. An inner cylinder 35 (which may be a solid cylinder instead of a cylinder) fixed to the lower surface of the extension of 21 (attachment part) by welding or the like and arranged concentrically within the outer cylinder 34; And an elastic rubber 36 having a substantially conical cylindrical shape disposed between the inner cylinder 35 and the inner cylinder 35. The inner cylinder 35 is embedded to a predetermined depth at the center of the upper end surface of the elastic rubber 36 and integrally joined, The lower outer peripheral surface of the elastic rubber 36 is integrally joined to the inner peripheral surface of the outer cylinder 34. Inside the elastic rubber 36, for example, two (other than two) cylindrical sleeves 37 having different diameters are embedded concentrically with the outer cylinder 34 and the inner cylinder 35 at intervals in the radial direction. With this structure, the elastic rubber 36 is radially divided into three cylindrical divided rubbers 36a, 36a,..., And these divided rubbers 36a, 36a,. And are integrally joined in a state of being alternately polymerized.
[0052]
In the example shown in FIG. 9, the damper elements 33 are arranged concentrically inside each of the vibration isolation elements 20. In this example, each of the metal plates 21 of the vibration isolating element 20 has no extension similar to that of the first or second embodiment, and is an intermediate portion excluding the upper and lower metal plates 21 and 21 (attachment portions). Center holes 21a, 21a are formed through the two metal plates 21, 21, and a damper element 33 is concentrically arranged in the center holes 21a, 21a. The outer cylinder 34 of the damper element 33 is fixed to the upper surface of the metal plate 21 at the lower end of the vibration isolating element 20, and the inner cylinder 35 is fixed to the lower surface of the metal plate 21 at the upper end. Others are the same as the example shown in FIG.
[0053]
Further, in the example shown in FIG. 10, the anti-vibration element 20 itself is changed. That is, in this example, the vibration damping element 20 is not a stack of the elastic rubbers 22, 22,... And the metal plates 21, 21,. The upper end of the coil spring is attached to the upper metal plate 21 and the lower end thereof is attached to the lower metal plate 21 so as not to be shifted laterally. Then, a damper element 33 is concentrically arranged in the vibration isolating element 20 composed of the coil spring as shown in FIG.
[0054]
And, as shown in each of these examples, by disposing the damper element 33 in parallel with the vibration isolating element 20, the vertical vibration of the internal floor 10 is attenuated by the damper element 33, and the vibration of the loaded cargo W is reduced. Properties can be further enhanced. Further, the rigidity of the container container 1 in the horizontal and lateral directions can be increased by the damper element 33, and the vibration in the same direction can be suppressed.
[0055]
The damper element 33 is turned upside down, and the inner cylinder 35 is arranged on the upper surface of the floor 2 of the container 1 and the outer cylinder 34 is arranged on the lower surface of the upper plate 11 of the inner floor 10. You can also.
[0056]
Further, in each of the above embodiments, the stopper 30 is formed by projecting the lateral portion 4a of the connection portion 4 in the container 1 into the inside of the container 1, but the structure of the stopper 30 is limited to that of each of the above embodiments. Instead, various things can be adopted. For example, one of the upper surface of the floor portion 2 of the container container 1 and the lower surface of the inner floor 10 is provided with a hook portion having a vertical locking hole, and the other is slidably inserted into the locking hole of the hook portion. A locking portion is formed at the tip of the pin portion, and when the swing of the internal floor 10 exceeds a predetermined value, the locking portion at the tip of the pin portion is formed around the locking hole. The swinging of the inner floor 10 may be stopped by engaging with the hook portion. The point is that the container 30 may be provided with a stopper 30 for stopping the internal floor 10 from shaking more than a predetermined amount.
[0057]
Further, in each of the above embodiments, the metal plates 21 and 21 at the lower end of the vibration isolation element 20 are fixed to the upper surface of the floor 2 of the container 1, and the metal plate 21 at the upper end is fixed to the lower surface of the internal floor 10 as attachment portions. However, the upper and lower metal plates 21 and 21 are omitted, and the elastic rubbers 22 and 22 (or coil springs) located at the upper and lower ends are directly applied to the upper surface of the floor 2 of the container 1 and the lower surface of the inner floor 10, respectively. May be brought into contact with each other, and a similar effect can be obtained.
[0058]
【The invention's effect】
As described above, according to the first aspect of the present invention, the internal floor for loading cargo is placed and supported on the floor in the container container of the anti-vibration container via the plurality of anti-vibration elements. By providing a stopper for stopping the sway more than a predetermined amount, and opening a fork entry at a lower portion of a side wall located between the floor portion and the inner floor of the container container, an insertion space for a fork claw for a lift inserted from the fork entry. And the vibration isolating element are arranged side by side at substantially the same height between the floor of the container container and the inner floor, so that a larger cargo can be accommodated in the container container as compared with the built-in type anti-vibration container. The volume can be secured. In addition, the container container itself can be placed directly on the floor of the cargo compartment on the floor, eliminating the possibility of the container container shaking or vibrating unlike a vibration-damping container of the whole vibration-proof type. In this case, the container loading space and the loading amount can be increased, and the freight capacity of the container can be increased.
[0059]
According to the invention of claim 2, the claw receiving portion for receiving the fork claw inserted from the fork entry is provided on the upper surface of the floor portion of the container container, so that the fork claw is inserted into the claw receiving portion via the fork entry. In addition to facilitating the positioning of the container, it is also possible to prevent the cargo on the internal floor from being shaken when the fork claw is inserted and the container container is transported in a lifted state. The seal between them keeps the anti-vibration element in communication with the outside in the container container, so that the operational stability of the anti-vibration element can be ensured and the container specifications can be simplified.
[0060]
According to the third aspect of the invention, by providing the claw receiving portions of the fork claws on the lower surface of the inner floor, it is possible to increase the strength of only the inner floor to which a load is applied when inserting the fork claws and lifting the container container. And the weight of the entire container can be reduced.
[0061]
According to the fourth aspect of the present invention, the vibration of the internal floor can be attenuated by providing the damper element for attenuating the vibration of the internal floor between the floor of the container container and the internal floor.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view showing a non-loaded state of an anti-vibration container according to Embodiment 1 of the present invention.
FIG. 2 is a partially broken front view showing a state in which the anti-vibration container is loaded with cargo.
FIG. 3 is a plan view of the anti-vibration container.
FIG. 4 is a diagram corresponding to FIG. 1 showing a structure in which the cargo loading area of the vibration-proof container is expanded.
FIG. 5 is a partially broken front view showing a non-loaded state of a vibration-proof container according to Embodiment 2 of the present invention.
FIG. 6 is a partially cutaway front view showing a cargo loading state of the anti-vibration container.
FIG. 7 is a diagram corresponding to FIG. 5, showing a structure in which the cargo loading area of the anti-vibration container is expanded.
FIG. 8 is an enlarged front view showing an example of a structure in which a damper is provided in addition to a vibration isolating element.
FIG. 9 is an enlarged front view showing another example of a structure in which a damper is provided in addition to a vibration isolating element.
FIG. 10 is an enlarged front view showing still another example of a structure in which a damper is provided in addition to a vibration isolating element.
[Explanation of symbols]
A anti-vibration container
W Cargo
1 container container
2 floor
10 Interior floor
20 Anti-vibration elements
26 Fork entry
27 Claw receiver
30 Stopper
33 Damper element

Claims (4)

On the floor in the container container formed of a box, an internal floor on which the cargo is loaded is placed and supported so as to be relatively movable in the vertical direction through a plurality of vibration isolating elements,
A stopper is provided on the container to stop the internal floor from swaying more than a predetermined amount,
An anti-vibration container, characterized in that a fork entry for inserting a lift fork claw is opened at a lower portion of a side wall of the container container between the floor portion and the inner floor of the container container. The anti-vibration container according to claim 1,
An anti-vibration container having a claw receiving portion for receiving a fork claw inserted from a fork entry on an upper surface of a floor portion of a container container. The anti-vibration container according to claim 1,
An anti-vibration container comprising a claw receiving portion for receiving a fork claw inserted from a fork entry on a lower surface of an inner floor. The anti-vibration container according to any one of claims 1 to 3,
An anti-vibration container, characterized in that a damper element for attenuating the vibration of the internal floor is provided between the floor of the container container and the internal floor.

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