JP2002145269A - Vibration-control transport pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration-control transport pallet which can carry objects to be carried without being damaged by a vibration. SOLUTION: The vibration-control transport pallet for carrying objects 2 to be carried includes a base frame 11, a mount frame 21 which is provided on the base frame to allow vertical elastic displacement by a vertical spring 17 and on whose upper surface the objects are mounted, and a horizontal spring 24 provided between the mount frame and the base frame for elastically supporting horizontal motion of the mount frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration pallet for transporting an article which may be damaged by vibration of an electronic device or a precision device.

[0002]

2. Description of the Related Art Vehicles such as trucks are used as means for transporting goods. If the conveyed object is likely to be damaged by vibrations like electronic equipment or precision equipment, the suspension is a leaf spring in a normal vehicle, so the vibration damping ability is poor and it is caused by unevenness of the running road Vibrations are easily transmitted to the carrier. For this reason, there is a possibility that the conveyed article may be damaged by vibration during conveyance.

[0003] Therefore, when a conveyed object such as an electronic device or a precision device is conveyed, a vehicle having an air suspension is used so that vibration at the time of conveyance is hardly transmitted to the conveyed object. In a vehicle having an air suspension, vibrations caused by unevenness of a traveling path and the like are absorbed and attenuated by the air suspension, so that it is difficult for the vibration to be transmitted to a conveyed product loaded on a cargo bed of the vehicle. For this reason, it is possible to carry the article without damaging the article.

[0004] However, since a vehicle having an air suspension is expensive, not only is it burdensome to own the vehicle, but also the vehicle cannot be secured when necessary.

In addition, in order to increase the vibration damping ability of the air suspension, the spring constant of the air suspension must be changed in accordance with the load (load weight) of the conveyed object. Or the work is cumbersome.

[0006] In some cases, a conveyed object is conveyed by a freight car instead of a vehicle. In the case of a freight car, since it travels on rails, it is considered that the occurrence of vibration is reduced as compared with the case of traveling on a road surface. However, it is inevitable that a large vibration is generated depending on the laying state of the rail. Moreover, since the suspension of the freight car is a leaf spring, the vibration is easily transmitted to the conveyed article without being greatly attenuated. Therefore, it is not suitable for transporting easily damaged articles such as electronic devices and precision instruments.

On the other hand, when moving a conveyed object such as electronic equipment or precision equipment in a factory or the like, the conveyed object is placed on the upper surface of a pallet and the pallet is conveyed by a forklift. In this case, the vibration accompanying the traveling of the forklift is directly transmitted to the conveyed object via the pallet, so that the vibration may damage the conveyed object.

[0008]

As described above, when a conveyed object is conveyed by using a vehicle having an air suspension, the conveyed object can be conveyed without damaging the conveyed object. Since the vehicle is expensive, the transportation cost is high and the vehicle cannot be secured, which is not practical.

[0009] In addition, when the goods are conveyed by a freight car or a forklift, vibrations are easily transmitted to the goods, and the goods may be damaged.

An object of the present invention is to provide a vibration-isolating pallet for transporting a conveyed article without damaging the conveyed article even if the conveyed article is conveyed by an ordinary vehicle, a wagon or a forklift. It is in.

[0011]

According to a first aspect of the present invention, there is provided a vibration isolating pallet for transporting a conveyed object, wherein a base frame and an elastic member for up and down are provided on the base frame so as to be elastically displaceable in a vertical direction. A mounting frame on which the transported object is mounted on the upper surface, and a horizontal elastic member provided between the mounting frame and the base frame and elastically supporting a horizontal movement of the mounting frame. A vibration isolating pallet for transportation, comprising:

According to a second aspect of the present invention, the horizontal elastic member includes a first horizontal elastic member for elastically supporting a predetermined horizontal movement of the mounting frame, and the predetermined horizontal member of the mounting frame. 2. The vibration isolating pallet according to claim 1, further comprising: a second horizontal elastic member for elastically supporting a horizontal movement intersecting the horizontal direction.

According to a third aspect of the present invention, the base frame is provided with a cover for non-contactly covering the mounting frame and a conveyed object mounted on the mounting frame. It is on the vibration isolation pallet for transport described.

According to a fourth aspect of the present invention, a first mounting member provided on an upper surface of the base frame and a lower surface of the mounting frame are provided to face the first mounting member at predetermined intervals. A second mounting member, a holding member having connection grooves fixed to opposing portions of the first and second mounting members, and a holding member provided at both ends of the horizontal elastic member and inserted into the connection grooves. 2. The vibration isolating pallet according to claim 1, further comprising: a connecting member connected to the holding groove, and a connecting shaft for connecting and fixing the connecting member inserted into the connecting groove to the holding member.

According to the first and second aspects of the present invention, the mounting frame on which the article is mounted can be elastically displaced with respect to the base frame by the vertical elastic member and the horizontal elastic member. Due to the support, the vibrations in the vertical and horizontal directions are attenuated by the respective elastic members, and it becomes difficult for the vibration to be transmitted to the conveyed object mounted on the mounting frame.

According to the third aspect of the present invention, the conveyed object and the mounting frame are covered by the cover attached to the base frame. It is possible to prevent the vibration damping effect of the vertical elastic member and the horizontal elastic member from being impaired due to the influence of the above.

According to the fourth aspect of the invention, the horizontal elastic member can be reliably and easily provided between the base frame and the mounting frame.

[0018]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 5 is a schematic configuration diagram showing a state in which a transported object 2 is transported by a vehicle 3 using the vibration isolation pallet 1 for transportation of the present invention, and the vehicle 3 has a carrier 4.
The carrier 4 is elastically supported by an axle 6 via a suspension composed of a leaf spring 5. The transport pallet 1 is placed on the carrier 4. The goods 2 placed on the vibration isolating pallet 1 for transportation are covered by a cover 7, which is tied to the cover 7 by a rope 8 connected to the carrier 4. In this embodiment, the width 2 of the
The two vibration isolating pallets 1 for transportation are arranged side by side.

The transport pallet 1 has a base frame 11 as shown in FIG. This base frame 11
Is formed by connecting longitudinally opposite ends and intermediate portions of three front and rear members 12 which are spaced apart in parallel at predetermined intervals by a rectangular tubular upper member 13a and a strip-shaped lower member 13b.

Between the upper member 13a and the lower member 13b of both ends in the front-rear direction of the base frame 11, there is formed an opening 11a (only one is shown) into which a claw of a forklift can be inserted.

At four corners of the upper surface of the base frame 11, rectangular mounting plates 14 are fixed. A pair of first angle members 15a are respectively provided on the pair of mounting plates 14 at one end side and the other end side in the width direction of the base frame 11 along the front-rear direction.

A second angle member 15b is provided between one end and the other end of the pair of first angle members 15a in the front-rear direction. First and second angle materials 1
5a and 15b each constitute a first attachment member. Further, a holding member 16 also made of an angle material is provided on the periphery of the upper surface of the base frame 11 on each side.
Each book is provided.

On each of the mounting plates 14, up and down springs 17 as up and down elastic members are erected with their lower ends connected and fixed. On the upper surface side of the base frame 11, there is provided a mounting frame 21 in which four lower corners are connected and fixed to the upper end of the vertical spring 17. The mounting frame 21 is formed in a rectangular frame shape smaller than the base frame 11 by a rectangular tubular member as shown by a chain line in FIGS. In the frame of the mounting frame 21, a front and rear member and a horizontal member (not shown) are provided.

At the center of the lower surface of the mounting frame 21, a second mounting member 22 having a rectangular plate shape is fixed. The second mounting member 22 has a flange 23 formed by bending at a peripheral portion. The flanges 23 on each side are opposed to one of the upright sides of the first and second angle members 15a and 15b in parallel at a predetermined interval.

A horizontal spring 24 as a horizontal elastic member is provided between the first and second angle members 15a and 15b and the flange 23 of the second mounting member 22, respectively. That is, as shown in FIGS. 3 and 4, the mutually facing surfaces of the upright sides of the first and second angle members 15 a, 15 b and the flange 23 of the second mounting member 22 are located between the front and rear of the base frame 1. A pair of holding members 25 spaced at predetermined intervals along the
Has been fixed by. The holding member 25 has a connecting groove 27 opened in the vertical direction and one end face, and the connecting groove 27.
Is formed.

At both ends of the horizontal spring 24, connecting plates 29 as connecting members are attached.
That is, the insertion holes 31 are provided at one end and the other end of the connection plate 29 in accordance with the cross-sectional shape of the horizontal spring 24.
The horizontal spring 2 is inserted into the insertion hole 31.
4 are inserted at both ends. Thereby, the horizontal spring 24 and the connection plate 29 are integrally connected.

The connecting plate 29 provided at one end of the horizontal spring 24 is connected to the first and second angle members 15a,
The connecting plate 29 inserted into the connecting groove 27 of the holding member 25 attached to the second mounting member 22 is attached to the flange 23 of the second attaching member 22.
5 is inserted into the connection groove 27.

The connecting plate 2 inserted in each connecting groove 27
9 is a through-hole 28 of the holding member 25 and a connecting plate 29
Are connected and fixed by a connection shaft 32 inserted into a through hole 29a formed in the second hole. Holding member 2 of this connecting shaft 32
C-rings 33 are engaged with both ends protruding from the through-hole 28 of the fifth embodiment. Thereby, the connecting shaft 32 is held so as not to be able to be pulled out.

That is, the mounting frame 21 is supported on the base frame 1 by the horizontal spring 24 so as to be elastically displaceable in the horizontal direction.

As shown in FIG. 1, as shown in FIG.
The transported object 2 such as an electronic device or a precision device is placed on the upper surface. A pair of I-bolts 35 are provided on each side of the periphery of the mounting frame 21. Both ends of the rope 8 hung on the transported object 2 are connected to I bolts 35 provided on a pair of opposite sides of the mounting frame 21.

The cover 7 has a rectangular box shape with an open lower surface, and covers the transported object 2 and the mounting frame 21 in a non-contact state. The lower end of the cover 7 is detachably connected and fixed to the holding member 16 by screws 36. Therefore, the transported object 2 and the mounting frame 21 covered by the cover 7 are prevented from being affected by wind pressure, rainwater, or careless external force during transport.

Incidentally, caster plates 37 are attached to both ends in the longitudinal direction of both sides in the width direction of the base frame 11. A caster (not shown) is detachably attached to the caster plate 37. If the casters are attached to the base frame 11, the vibration isolating pallet 1 for transportation can be easily moved. Therefore,
By mounting the casters until the transportation anti-vibration pallet 1 is transported by a vehicle or the like, the pallet can be easily moved in a factory or the like.

Further, although not shown, when the transportation anti-vibration pallet 1 is loaded on the vehicle, it is attached to the vehicle by means such as a rope via mounting members 16 provided on each side of the base frame 11. It can be fixed.

According to the vibration isolating pallet 1 for transportation constructed as described above, the transported object 2 is mounted on the mounting frame 21. The mounting frame 21 is provided with a vertical spring 17.
And a horizontal spring 22 so as to be elastically displaceable in the vertical and horizontal directions.

Therefore, when the pallet 1 is loaded on a vehicle and transported, even if the vehicle vibrates as it travels, the vibration is attenuated by the vertical springs 17 and the horizontal springs 22 and transmitted to the mounting frame 21. . This makes it difficult for the vibration of the vehicle to be transmitted to the article 2 mounted and fixed on the mounting frame 21, so that it is possible to prevent the article 2 from being damaged by the vibration of the vehicle during the conveyance.

The mounting frame 21 is not only elastically supported in the vertical direction by the vertical springs 17 but also elastically supported in the horizontal direction by the horizontal springs 22. For this reason, the pallet 1 elastically attenuates three-dimensional vibrations caused by the running of the vehicle, and therefore, the conveyed object 2 can be reliably protected from the vibrations during the conveyance.

The mounting frame 21 and the article 2 elastically held by the base frame 11 are covered by the cover 7 fixed to the base frame 11 in a non-contact state.

For this reason, even when the pallet 1 is conveyed by a vehicle without a hood, for example, the wind and rain during the conveyance do not act on the mounting frame 21 or the conveyed object 2 as an external force. An unnecessary load is applied to the spring 17 and the horizontal spring 24, and these springs 17,
24 can be prevented from changing.

That is, since the performance of the pallet 1 can be prevented from being changed by unnecessary external force, the pallet 1 can be elastically supported in a good state without being damaged by vibration during the conveyance. Becomes possible.

The horizontal spring 24 has connecting plates 29 attached to both ends thereof, and holding members provided on the first and second angle members 15a and 15b and the second attaching member 22 via the connecting plates 29. Connecting shaft 32 to member 25
To fix the connection.

Therefore, not only can the horizontal spring 24 be securely connected and fixed to the base frame 11 and the mounting frame 21, but also the connecting operation can be performed by the connecting shaft 32, which facilitates the connecting operation. It can be performed quickly. That is, it is possible to easily perform the assembling work of the vibration isolating pallet 1 for transportation and the disassembling work at the time of maintenance and inspection.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the base frame and the mounting frame have a structure in which a plurality of members are connected, but may have a plate shape, and the point is not limited.

Although two horizontal springs are provided in each of the front and rear direction and the width direction, that is, a total of eight horizontal springs are provided. However, the number of horizontal springs is not limited. For example, four horizontal springs may be provided. Alternatively, three or more wires may be provided at one location, for a total of 12 or more wires.

Further, although a spring is used as the elastic member, a member such as rubber may be used instead of the spring. In short, any member can be used as long as it can attenuate vibration.

Further, the same operation and effect can be obtained not only in the case where the transfer vibration isolating pallet is carried by a vehicle but also in the case where it is carried by a wagon or a forklift.

[0047]

According to the first and second aspects of the present invention, the mounting frame on which the object is mounted is elastically displaced with respect to the base frame by the upper and lower elastic members and the horizontal elastic member. I tried to support as much as possible.

As a result, the vibrations applied to the mounting frame in the vertical and horizontal directions are attenuated by the elastic members, and it becomes difficult for the vibration to be transmitted to the goods mounted on the mounting frame. Damage can be prevented.

According to the third aspect of the present invention, the conveyed object and the mounting frame are covered by the cover attached to the base frame.

Therefore, it is possible to prevent the mounting frame and the conveyed object from being affected by wind pressure, rainwater, or inadvertent external force during conveyance, so that the damping action of the vibration by the vertical elastic member and the horizontal elastic member is impaired. Can be prevented.

According to the fourth aspect of the present invention, the horizontal elastic member is mounted on the first and second mounting members provided on the base frame and the mounting frame by the connecting shaft.

Therefore, the horizontal elastic portion can be reliably and easily provided between the base frame and the mounting frame.

[Brief description of the drawings]

FIG. 1 is a front view of a vibration-isolating pallet for transportation with a conveyed article mounted thereon according to an embodiment of the present invention.

FIG. 2 is a plan view of the base frame from which the mounting frame has been removed.

FIG. 3 is a partially sectional plan view showing a mounting structure of a horizontal spring.

FIG. 4 is a partially sectional side view showing a mounting structure of a horizontal spring.

FIG. 5 is an explanatory view showing a state where a vibration isolating pallet for transportation is loaded on a vehicle.

[Explanation of symbols]

 7 ... Cover 11 ... Base frame 15a, 15b ... Angle material (first mounting member) 17 ... Vertical spring (vertical elastic member) 21 ... Mounting frame 22 ... Second mounting member 24 ... Horizontal spring (horizontal) Elastic member) 25 holding member 27 connecting groove 28 through hole 29 connecting plate (connecting member) 32 connecting shaft

Continuation of the front page (72) Inventor Makoto Kimoto 1-10-14 Hamamatsucho, Minato-ku, Tokyo Toshiba Distribution Corporation (72) Inventor Toshiaki Ito 1-6-1, Sotokanda, Chiyoda-ku, Tokyo (72) Inventor Hideyuki Iwata 1-6-1, Sotokanda, Chiyoda-ku, Tokyo F-term (reference) 3E063 AA40 GG03 3J048 AA01 BC02 DA01 EA13

Claims (4)

[Claims] An anti-vibration pallet for transporting a conveyed object, comprising: a base frame; and an elastic member for up and down provided on the base frame so as to be vertically elastically displaceable, and the conveyed object is placed on an upper surface thereof. A vibration isolator for transport, comprising: a mounting frame; and a horizontal elastic member provided between the mounting frame and the base frame to elastically support a horizontal movement of the mounting frame. palette. 2. The horizontal elastic member includes a first horizontal elastic member that elastically supports a predetermined horizontal movement of the mounting frame, and intersects the predetermined horizontal direction of the mounting frame. The vibration isolating pallet according to claim 1, further comprising a second horizontal elastic member that elastically supports the horizontal movement of the pallet. 3. The apparatus according to claim 1, wherein the base frame includes a cover for covering the mounting frame and a conveyed object mounted on the mounting frame in a non-contact manner.
The described vibration isolation pallets for transport. 4. A first mounting member provided on an upper surface of the base frame, and a second mounting member provided on a lower surface of the mounting frame so as to face the first mounting member at a predetermined interval. A holding member having connection grooves fixed to opposing portions of the first and second attachment members, a connection member provided at both ends of the horizontal elastic member and inserted into the connection grooves, 2. A vibration isolating pallet for transport according to claim 1, further comprising a connecting shaft for connecting and fixing said connecting member inserted into said connecting groove to said holding member.