JP5120704B2 - Anti-vibration mat for rail transport - Google Patents

Description

The present invention relates to a vibration isolating mat for rail transport for preventing articles such as cargo loaded from being damaged by vibrations generated while a train is running.

As global warming becomes a social problem and the importance of energy saving increases, rail transport, which emits less CO2 than other transport modes, is attracting a great deal of attention as a means of transportation with a low environmental impact.
In particular, in recent years, rail transport has been used as a means of efficiently transporting large volumes of cargo from the industry due to the enforcement of laws on the rational use of energy and the shortage of long-distance truck drivers accompanying the declining birthrate and aging population. High expectations are placed on the role of railway container transportation.

For this reason, for example, the shift to the cargo line loading and unloading system (E & S system) is promoted, and by eliminating replacement work and connection work, vibration and impact, which are one factor in cargo accidents, can be reduced. ing.
In addition, measures to prevent cargo accidents, such as reducing vibrations generated between rails and wheels, are being promoted as measures for flattening, which is the cause of vibration and noise during traveling.
Similarly, railroad transportation companies (also referred to as transportation companies) are making efforts to prevent cargo accidents through thorough curing measures and making efforts to promote the expansion of rail transportation.

Cargo accidents in rail transport are roughly classified as “scratches”, “rupture” and “load collapse”.
The scratches are caused by rubbing outer boxes (packaging containers made of corrugated cardboard) that wrap the product, and the printed surface of the outer box becomes unclear and the product name or bar printed on the surface. If the code or the like is damaged, the commercial value disappears and becomes a subject of the claim.
Rupture is a case where the container itself containing the product itself is torn and the contents of the product are dissipated.
In addition, the collapse of the load means that the stacked outer boxes collapse from the aligned state.

The biggest cause of such a cargo accident is vibration generated as the train travels, and fine vibration, that is, high frequency (60 to 100 Hz) peculiar to railway transportation occurs as the acceleration increases.
It is said that this vibration cannot be completely suppressed by the buffer system of the container loading trolley.
Therefore, in order to reduce cargo accidents during rail transport, the use of a known anti-vibration pallet has been proposed.

On the other hand, for example, Japanese Patent Application Laid-Open No. 2002-308379 (Patent Document 1) proposes a railway freight transport container that can be transported reliably without damaging an article that is vulnerable to vibration.
The container for rail freight transportation includes a box-shaped outer casing formed so that a bottom portion is opened by a side wall member and a ceiling member that surround the four sides, and a lower part of the outer casing. A support body integrally attached to the body and fixed to the loading platform in the freight train, and a floor body on which an article mounted in a floating state in the outer casing is placed in the support body via vibration absorbing means. And the vibration absorbing means includes a first mounting body that is fixed to the support body, a second mounting body that is fixed to the floor body, and a vibration absorbing body that is interposed between the first mounting body and the second mounting body. Is provided.

  The vibration absorbing means has the first attachment body and the second attachment body provided side by side with a substantially horizontal state and attachment at an oblique angle with respect to the support body and the floor body. It has also been proposed to interpose an elastic member between the body and the inner periphery of the side wall member of the outer casing.

On the other hand, in the pallet transported by a forklift during truck transportation, in order to reduce the impact and vibration acting on the pallet, it is possible to detachably install an impact absorbing member, a vibration isolating member, etc. in the utility model registration No. 3001601. This is disclosed in Japanese Patent Publication No. 2818748, Japanese Patent No. 3615631, and Japanese Patent Application Laid-Open No. 2007-297056.
JP 2002-308379 A (Claims, paragraph 0016, paragraph 0027)

  The above-mentioned anti-vibration pallets currently in practical use average about 100 kg per vehicle, and each of them has a heavy weight, so when mounted on a freight car with a limited load capacity, transportation of the anti-vibration pallet for its own weight Since it is necessary to reduce the load capacity of the target cargo (product), it is difficult to carry out efficient rail transportation.

The known anti-vibration pallet has a high price per machine, so that a product having no freight burden increases the introduction cost and limits the cargo loading height by the height of the anti-vibration pallet. There are problems such as.

Moreover, since these vibration-proof pallets are basically targeted for vibrations (5 to 20 Hz) generated by automobile transportation, they are not necessarily effective against vibrations generated by railway transportation.
Furthermore, since the performance of the vibration isolation equipment on the vibration isolation pallet depends mainly on the performance of the vibration isolation material to be used, the cargo that can be transported is specified.
In particular, the structure of the current vibration isolating pallet has built-in vibration isolating materials for the pallet legs, so that the versatility is low and the anti-vibration effect can be obtained only by the effect of the installed anti-vibration materials.

Furthermore, the railway freight transport container described in Patent Document 1 absorbs vibrations from various directions that occur when the freight train is running, when it starts and stops, by the vibration absorbing means, Since it is not transmitted, it is stated that there is no adverse effect of the vibration on the article installed on the floor.
However, like the known vibration-proof pallet, the vibration-absorbing means is fixed to a specific part, so that the type of cargo to be stored is specified, and there is a problem to be solved such as lack of versatility. .

  SUMMARY OF THE INVENTION In view of the present situation, an object of the present invention is to provide an anti-vibration mat for railway transportation that has a high anti-vibration effect against high-frequency vibration that occurs during railway transportation, has a simple structure, and is easy to handle. .

Another object of the present invention is to provide an anti-vibration material incorporated in the anti-vibration mat for rail transport so that the anti-vibration material can be exchanged so that the maximum effect can be obtained according to the characteristics of the cargo to be transported. The form should be compact so as not to impair cargo handling.

In order to achieve the above object, a vibration isolating mat for rail transport according to claim 1 of the present invention is provided.
An anti-vibration mat for placing on a cargo platform,
A flat loading platform for loading cargo, the surface of which is made of a smooth material ;
A plurality of flat base materials having a required width and length, having a channel shape or a lip groove shape in cross section, and arranged in parallel at a required interval with the opening along the longitudinal direction downward, Flat base members for supporting the cargo bed , wherein the base members arranged in parallel are integrally connected by a pair of connecting members having an L-shaped cross section that are attached along openings in the short direction at both ends. When,
The anti-vibration material disposed on the back surface of the base member is composed of an anti-vibration material fixing fixture that can be detachably attached directly or indirectly via an attachment,
A different type of vibration isolating material is configured to be replaceable with a vibration isolating material corresponding to the cargo directly or using an attachment.

The invention according to claim 2 of the present invention is
The anti-vibration mat for rail transport according to claim 1,
The flat base member is
A reinforcing material composed of a pair of hollow bodies is arranged and fixed at a required interval in a state orthogonal to the base material, and is reinforced at a substantially central portion of the back surface.

The invention according to claim 3 of the present invention is
The anti-vibration mat for rail transport according to claim 1,
The fixture for fixing the vibration isolator is
A locking bolt of a required length is erected at the center of the surface of the base material, and the base material is flush with the lip surface in the opening along the longitudinal direction of the base material forming the base member. Is provided.

The invention according to claim 4 of the present invention is
The anti-vibration mat for rail transport according to claim 3 ,
The fixture for fixing the vibration isolator is
The base material on which the locking bolt is erected is provided flush with the lip surface in openings along the longitudinal direction of the base material located at least at the four corners and the center of the base member. It is a feature.

The invention according to claim 5 of the present invention is
The anti-vibration mat for rail transport according to claim 3 or 4 ,
In the locking bolt,
The ring mount is characterized in that it is detachably mounted directly by a nut.

The invention according to claim 6 of the present invention is
The anti-vibration mat for rail transport according to claim 3 ,
The substrate is
The cross-section is a channel, and a locking bolt of a required length is erected at the center of the surface, the left and right side walls are fitted into the opening formed between the lips, and the surface is the surface of the lip It is characterized in that it is provided flush with.

The invention according to claim 7 of the present invention is
The anti-vibration mat for rail transport according to claim 1,
The attachment is
A center part of a plate-shaped attachment main body having a required size has a bolt insertion hole for inserting a locking bolt provided in the fixture for fixing the vibration isolator, and a spring mat type on the lower surface. A locking pin for inserting the anti-vibration material into a cylindrical body with a built-in spring protrudes corresponding to the cylindrical body.

The invention according to claim 8 of the present invention provides
The anti-vibration mat for rail transport according to claim 1,
The attachment is
It is composed of a hollow flat attachment main body, and has a bolt insertion hole for inserting a locking bolt provided on the vibration isolator fixing fixture on the back surface side, and is relative to the bolt insertion hole. A through hole for inserting a tightening tool is formed on the surface side, and a part or all of the surface portion is used as a mounting portion for an anti-vibration pad.

A vibration isolating mat for rail transport according to the present invention has a base member having a specific structure for mounting a vibration isolating material on the back surface of a cargo bed for loading cargo, and a plurality of different types on the back surface of the base member. Since the anti-vibration material can be replaced with an anti-vibration material corresponding to the cargo, either directly or using an attachment, select the optimal anti-vibration material according to the cargo to be transported by freight car. It can be used.
Therefore, it is possible to reduce the occurrence of a peculiar freight accident associated with train transportation and transport the cargo safely.

In particular, the anti-vibration mat for rail transport according to the present invention eliminates the bulkiness of the anti-vibration mat for rail transport itself by using a flat base member including the loading platform. It is possible to load more cargo compared to the use.
In addition, since the whole is flat, the cargo handling performance is not impaired, and since it has a flat structure like the bottom of the container, it can handle both palletized cargo and bulk cargo.

  In addition, since the weight of the anti-vibration mat for rail transport itself, including the anti-vibration materials used, can be reduced, the load of cargo on the train can be increased. It is easy to mount and carry on.

Furthermore, since the vibration-proof material can be attached to the base member according to the type of cargo to be loaded, the optimal one for the train transportation of the cargo can be selected. In addition, the vibration isolator can be easily and easily attached directly or indirectly using an attachment, so that the vibration isolator can be efficiently replaced. It is expensive.

  Hereinafter, embodiments of the anti-vibration mat for railway transportation according to the present invention will be specifically described with reference to the accompanying drawings. However, the present invention is not limited to the illustrated one, and the gist of the present invention is described below. Various changes can be made within the range not changed.

  The antivibration mat 1 for rail transport according to the present invention includes a flat load carrier 2 having a required size, a base member 3 for supporting the load carrier 2, and a base member 3 as shown in FIG. It is composed of a plurality of attachments 4 for fixing a vibration isolator disposed on the back surface.

The plate-shaped loading platform 2 is not particularly limited in its material as long as the surface has smoothness in order to quickly load and unload cargo, so that the weight is reduced and the cost is reduced. In order to pull down, it is preferable to use a plywood material.
In this embodiment, the size of the loading platform 2 is 1,100 × 1,100 mm, the thickness is 5.5 mm, and the total weight including the base member 3 is suppressed to 30 kg or less. The size and thickness can be changed depending on the cargo to be loaded.

  The base member 3 includes a plurality of base members 31, 31... Made of steel having a lip groove in cross section, and a pair of connections having an L-shaped cross section that integrally connects the base members 31, 31. It is comprised by the materials 32 and 32 and the reinforcing materials 33 and 33 which consist of two hollow square pipes.

The base members 31, 31... Having a lip groove shape in cross section have a plurality of (five in the embodiment) at a required interval with the opening A formed between the lips 31 a and 31 a facing downward. The L-shaped connecting members 32, 32 are arranged along the left and right openings B and are integrally connected by means such as welding to form a mat shape. It is.
Further, reinforcing members 33 made of two hollow square pipes are arranged in parallel at a predetermined interval and perpendicular to the base members 31, 31. The reinforcing material 33 and each base material 31 are fixed and integrated by welding means.

  In this embodiment, the base material 31 is 120 mm wide × 1,100 mm long × 20 mm high, and the reinforcing member 33 is 50 mm wide × 1,100 mm long × 20 mm high. Although the height is reduced and the strength is improved, it is appropriately selected according to the weight of the cargo to be loaded.

There are no particular restrictions on the means for connecting the carrier 2 and the base member 3, but in consideration of replacement of the carrier 2 which may be damaged, a bolt (not shown) for connecting the carrier 2 and the base member 3 is connected. It is preferable to use and integrate.
In that case, in order to maintain the smoothness of the surface, it is desirable that the head of the connecting bolt does not appear on the surface of the loading platform 2.
In addition, in order to hold | maintain the surface of the loading platform 2 in a smooth state, an adhesive means can also be utilized.

As shown in FIG. 1, the fixture 4 is disposed at least at the center and the four corners of the lower surface of the base member 3.
As shown in FIG. 5, the fixture 4 has the same width as that of the opening A of the steel material 31 and has a cross-section of the channel-shaped base material 41. 42, and the head 43 of the locking bolt 42 is fixed to the back surface of the base material 41.
Instead of the channel-shaped base material 41, a base material having a lip groove shape in cross section similar to that of the base material 31 may be used.

  Such a fixture 4 is fitted in the opening A of the base material 31 so that the side walls 44, 44 are perpendicular to the lip 31a so that the surface of the base material 41 and the surface of each lip 31a are flush with each other. By fixing the base member 31 to the base material 31, the load 4 and the surrounding strength are reinforced.

  Thus, the fixture 4 fixed to the back surface of the base member 3 has a bolt insertion hole 5c for inserting the locking bolt 42 in the center as a vibration isolator 5, as shown in FIG. A ring mount in which a ring-shaped rubber member 5b is integrally provided on the lower surface of a circular plate 5a is attached to each fixture 4 using a nut 10 to form a vibration isolating mat 1 for rail transport. . (See Fig. 3 for mounting condition)

  FIG. 6 shows an example of attachment of another vibration isolator 6, and the vibration isolator 6 to be mounted is mounted on a plate 6 a having substantially the same shape as the base material of the fixture 4 with a spring inside. This is a spring mat in which a plurality of cylindrical bodies 6b, 6b are vertically penetrated.

  In order to mount the vibration isolator 6 made of a spring mat on the fixture 4, the lower surface of a plate-like attachment main body 7a having a bolt insertion hole 7c at the center is relatively placed on each cylindrical body 6b. The attachment 7 in which the locking pins 7b, 7b,.

That is, after inserting the locking bolt 42 into the bolt insertion hole 7c of the attachment 7 with the locking pin 7b facing downward, the nut 10 is inserted into the locking bolt 42 protruding from the bolt insertion hole 7c. The attachment 7 is fixed to the fixture 4 by engaging.
Next, each locking pin 7b of the attachment 7 is press-fitted into the corresponding cylindrical body 6b of the vibration isolating material 6 made of a spring mat so that both are engaged, and the vibration isolating material 6 is attached to the mounting tool 4. The anti-vibration mat 1 for railway transportation is used. (See Fig. 4 for mounting condition)

  FIG. 7 shows another example of mounting the vibration isolator 8, and the vibration isolator 8 to be attached is a vibration isolator pad that can be easily cut with a knife or the like.

  When the anti-vibration material 8 composed of the anti-vibration pad is attached to the mounting tool 4, an attachment 9 as shown in FIG. 7 is used.

The attachment 9 is formed of an attachment main body 9a composed of a flat hollow body as a whole, and a bolt insertion hole 9b of a locking bolt 42 erected on the mounting tool 4 is formed at the center on the back side. At the same time, a through hole 9c is formed on the surface facing the bolt insertion hole 9b. The through hole 9c is large enough to allow a tightening tool such as a wrench to be inserted.
Further, on the surface of the attachment main body 9a, a vibration isolating material 8 made of the vibration isolating pad is detachably attached to a part or the entire surface of the attachment main body 9a.

  Therefore, in order to attach the vibration isolator 8 made of the vibration isolating pad to the fixture 4, a bolt insertion hole 9 b formed on the back side of the attachment main body 9 a is formed in the locking bolt 42 of the fixture 4. After the engagement, a nut (not shown) is engaged with the tip of the locking bolt 42 protruding into the attachment main body 9a, and a wrench (not shown) is formed from the through hole 9c formed on the surface side. Is inserted into the attachment main body 9 a and the nut is tightened to fix the attachment 9 to the base member 3.

Thereafter, the sheet-like vibration isolating material 8 made of the vibration isolating rubber most suitable for the load is attached and fixed to a part of the surface of the attachment main body 9a as shown in FIG.
The anti-vibration material 8 may be attached to the entire surface of the attachment main body 9a so as to cover the large through hole 9c as necessary.

  As described above, the vibration isolator (5, 6, 8) is attached to the fixture 4 of the base member 3 by attaching the vibration isolator directly or indirectly via the attachment 7 or 9. The anti-vibration material 6 or 8 may be directly attached to the anti-vibration material 5 or the attachment 7 or 9 to attach the anti-vibration material 6 or 8 indirectly. Since the attachment 7 or 9 can be attached to or detached from the base member 3 very easily and easily, an optimal vibration isolator can be used according to the type of cargo to be loaded.

  Further, in this embodiment, the ring mount type vibration-proof material 5 to be used is composed of a single plate and a ring-shaped rubber member fixed to the back surface thereof. By controlling, or by laminating a single plate and a plurality of ring-shaped rubber members affixed to the back surface thereof in the vertical direction, an optimal vibration-proofing effect can be obtained.

In the spring mat type vibration isolator 6, the optimum vibration isolating effect can be obtained by selecting the number and height of the cylindrical body in which the spring is built-in to the attachment 7, the material of the cylindrical body, and the like. .
Similarly, in the case of the vibration-proof pad type vibration-proof material 8, the optimum vibration-proof effect can be obtained by selecting the material and thickness, and further the adhesion area to the attachment 9.

Furthermore, the optimal vibration-proofing effect can be obtained by controlling the arrangement of the fixture 4 on the base member 3 and the number of attachments.

The anti-vibration mat for rail transport according to the present invention can be easily and easily attached / detached so that the anti-vibration material can be attached / detached to / from the cargo bed in order to cope with the high frequency vibration of the railway characteristic generated when the train travels. Although it is configured, it can also be applied to pallets used for automobile transportation, and can be used in a wide range of fields that require a vibration isolation effect.

It is a partially notched top view which shows an example of the anti-vibration mat | matte for railroad transportation concerning this invention. It is a side view which shows an example of the base member which comprises the vibration isolating mat for railroad transportation of this invention. It is a partially cutaway side view of the main part of the anti-vibration mat for railway transport equipped with a ring mount type anti-vibration material. It is a partially cutaway side view of the main part of the anti-vibration mat for rail transport equipped with a spring mat type anti-vibration material. It is a partially cutaway perspective view showing the relationship between a ring mount type vibration damping material and a fixture. It is a partially cutaway perspective view showing the relationship between a spring mat type vibration damping material and a fixture. It is a perspective view which shows an example of the fixture for mounting | wearing with a vibration-proof pad type vibration-proof material.

DESCRIPTION OF SYMBOLS 1 Railroad vibration isolating mat 2 Loading platform 3 Base member 31 Base material 32 Connecting material 33 Reinforcing material 4 Mounting tool 41 Base material 42 Locking bolt 43 Head 44 Side plate 5 Ring mount type vibration isolating material 5a Plate 5b Rubber member 5c Bolt insertion hole 6 Spring mat type anti-vibration material 6a Plate 6b Cylindrical body 7 Attachment 7a Attachment main body 7b Locking pin 7c Bolt insertion hole 8 Anti-vibration pad type anti-vibration material 9 Attachment 9a Attachment main body 9b Bolt insertion hole 9c Hole 10 Nut A, B Opening

Claims (8)

An anti-vibration mat for placing on a cargo platform,
A flat loading platform for loading cargo, the surface of which is made of a smooth material ;
A plurality of flat base materials having a required width and length, having a channel shape or a lip groove shape in cross section, and arranged in parallel at a required interval with the opening along the longitudinal direction downward, Flat base members for supporting the cargo bed , wherein the base members arranged in parallel are integrally connected by a pair of connecting members having an L-shaped cross section that are attached along openings in the short direction at both ends. When,
The anti-vibration material disposed on the back surface of the base member is composed of an anti-vibration material fixing fixture that can be detachably attached directly or indirectly via an attachment,
An anti-vibration mat for rail transport, wherein different types of anti-vibration materials can be replaced directly or by using attachments. The flat base member is
A substantially central portion of the back surface, reinforcing member comprising a pair of hollow bodies, said to exist a required interval in a state perpendicular to the base member is arranged fixed, according to claim 1, characterized in that it is reinforced Anti-vibration mat for rail transport. The fixture for fixing the vibration isolator is
A locking bolt of a required length is erected at the center of the surface of the base material, and the base material is flush with the lip surface in the opening along the longitudinal direction of the base material forming the base member. The anti-vibration mat for rail transport according to claim 1, wherein the anti-vibration mat is provided on the rail. The fixture for fixing the vibration isolator is
The base material on which the locking bolt is erected is provided flush with the lip surface in openings along the longitudinal direction of the base material located at least at the four corners and the center of the base member. The anti-vibration mat for railway transportation according to claim 3 characterized by the above-mentioned. In the locking bolt,
The vibration isolating mat for railway transportation according to claim 3 or 4 , wherein the ring mount is detachably mounted directly by a nut. The substrate is
The cross-section is a channel, and a locking bolt of a required length is erected at the center of the surface, the left and right side walls are fitted into the opening formed between the lips, and the surface is the surface of the lip The anti-vibration mat for rail transport according to claim 3 , wherein the anti-vibration mat is provided flush with the rail. The attachment is
A center part of a plate-shaped attachment main body having a required size has a bolt insertion hole for inserting a locking bolt provided in the fixture for fixing the vibration isolator, and a spring mat type on the lower surface. The anti-vibration material for rail transport according to claim 1, wherein a locking pin for inserting the anti-vibration material into a cylindrical body having a built-in spring projects from the cylindrical body. mat. The attachment is
It is composed of a hollow flat attachment main body, and has a bolt insertion hole for inserting a locking bolt provided on the vibration isolator fixing fixture on the back surface side, and is relative to the bolt insertion hole. The rail transport according to claim 1, wherein a through-hole for inserting a tightening tool is formed on the surface side to be mounted, and a part or all of the surface portion is a mounting portion for an anti-vibration pad. Anti-vibration mat for use.

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