JP2000128322A - Seal unit, and moving method for carried object using the unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrying method for a very heavy carried object by a simple device. SOLUTION: In a seal fitted to the lower part of a very heavy carrying article, and supplying a pressure medium with a carrying path B between to demarcate a space; a seal; having hollow and double structure and constituted of a seal having hollow and double structure and composed of an adhesive seal 2 covering a steel material 21 and a soft airtight seal 3; is constituted of a corner part unit mounted on the corner parts of the lower part of the article, a rectilinear part unit mounted on the rectilinear part of the lower part of the article, and a back plate 4 for integrating the respective units.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal unit which is attached to a lower part of a heavy-weight conveyed object and supplies a pressure medium between the conveyer and a convey path to define a space. Regarding how to move.

[0002]

2. Description of the Related Art Wheels, such as wheels,
Rollers, air casters, water casters, etc. are available. Since the wheels and rollers support the load at points or lines, it is necessary to increase the rigidity of the transported object itself and the floor support strength as well as the wheel and roller bodies. In order to distribute the load of the conveyed goods, the number of support points must be increased,
Therefore, maintenance and management are not easy.

[0003] Air casters and water casters use an air pressure or a water pressure to support the load of a conveyed product on a surface, but have a structure in which an internal pressure is held by a ring-shaped integrated seal unit itself. Therefore, depending on the size of the conveyed object, there is a limit in manufacturing as a conveying device and commercializing the same.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a method of transporting a heavy load by a simple apparatus.

[0005]

A seal attached to the lower part of a heavy-weight conveyed object and supplying a pressure medium between the conveyer and a conveying path to define a space, comprising:
It is constituted by a hollow double-structured seal composed of a soft airtight seal, and the hollow double-structured seal has a corner unit mounted on a lower corner of a conveyed product and a straight line mounted on a linear portion below the conveyed product. A seal unit comprising a unit unit and a back plate that integrates the units. In addition, among the seals of the hollow double structure, the soft hermetic seal is characterized by having an opening.
It is a seal unit. In addition, a back plate having a supply port installed on the bottom surface of the conveyed product, an airtight seal having a single structure provided with an opening, and an airtight holding material provided at the end of the airtight seal,
It is constituted by a packing material installed between the back plate and the conveyed product, and the hermetic seal is formed by a corner unit mounted on a corner at a lower part of the conveyed product and a linear unit mounted on a linear portion on the lower part of the conveyed product. It is a seal unit characterized by comprising. Also, in the method of moving a conveyed object in which a heavy object is lifted and moved, a seal unit having a hollow double structure is mounted around a lower portion of the conveyed object, and after supplying a pressure medium into the seal unit, the seal unit is used. A method for moving a conveyed article using a seal unit, wherein a pressure medium is supplied into a space on the bottom face of the conveyed article defined in (1) and the conveyed article is moved while floating. In addition, the seal unit is attached to a notch provided on the outer peripheral portion of the bottom surface of the conveyed object, a pressure medium is supplied to the inside of the seal unit to define a space on the bottom surface of the conveyed object, and from the opening provided in the airtight seal. And a method of moving a conveyed object using a seal unit, wherein the conveyed object is moved while being floated by supplying a pressure medium to a space between a bottom surface of the conveyed object and a conveying path. Also, the seal unit is mounted on the lower side of the outer periphery of the conveyed object, a pressure medium is supplied into the seal unit to define a space on the bottom surface of the conveyed object, and the bottom surface of the conveyed object and the conveyed path are supplied from a supply port provided in the conveyed path. A method of moving a conveyed object using a seal unit, wherein the conveyed object is moved while being floated by supplying a pressure medium to the space. Furthermore, the seal unit is mounted via a back plate having a supply port installed on the bottom surface of the conveyed object, and a packing material installed between the back plate and the conveyed object blocks water leakage from the joint, and A method of moving a conveyed object using a seal unit, wherein a pressure medium is supplied from a supply port of a plate to a space between a bottom surface of the conveyed object and a conveying path, and the conveyed object is moved while floating.

[0006]

First Embodiment An example of an embodiment of the present invention will be described below with reference to the drawings.

<A> Overall Configuration FIG. 1 is a side sectional view showing a state in which a seal unit 1 according to the present invention is mounted on the bottom surface of a conveyed object A and the conveyed object A is levitated, and FIG. FIG. 4 is an enlarged side sectional view of FIG. The seal unit 1 has a hollow double-structured seal composed of a tight seal 2 coated with a steel material 21 and a soft hermetic seal 3. Seal unit 1 is back plate 4
And a supply port 41 for supplying a pressure medium is provided in the back plate 4. The soft hermetic seal 3 is provided with an opening 31 for supplying the pressure medium supplied from the supply port 41 to the bottom surface of the transported object A.
High-pressure water, high-pressure air, or the like can be used as the pressure medium. In this embodiment, a case where high-pressure water is used as a pressure medium will be described.

<B> Close-contact Seal The close-contact seal 2 has a function of bringing the seal unit 1 into close contact with the transfer path B, maintaining the internal pressure, and defining the space pressure on the bottom surface of the transfer object A and the atmospheric pressure. . Therefore, the close contact seal 2 requires rigidity, and has a structure in which the rigidity is increased by interposing the steel material 21 inside. However, in order to bring the seal unit 1 into close contact with the transport path B, the steel material 21 is not interposed only at the front end of the close contact seal 2.

<C> Hermetic Seal The hermetic seal 3 is a seal unit 1 supplied with high-pressure water.
Has a function of pressing the close-contact seal 2 against the transport path B by expanding the internal space. Therefore, hermetic seal 3
Has a soft structure and has an opening 31 for supplying high-pressure water to the bottom surface of the transported object A.

<D> Back Plate The back plate 4 is a unit that integrates the close contact seal 2 and the airtight seal 3 to constitute a single seal unit 1. A high-pressure water supply port 41 is provided at the center of the back plate 4.

<E> Packing Material, Holder The packing material 5 is for preventing water leakage from the joint between the back plate 4 of the seal unit 1 and the conveyed object A. The seal unit 1 is sandwiched and fixed between the back plate 4 and the holding fitting G.

[0012]

The following is a description of a method for moving a conveyed object using the seal unit of the present invention.

<A> Manufacture of Conveyed Items FIG. 3 is a plan view showing the arrangement of the entire manufacturing yard, and FIG.
Is a side view thereof. The production yard has an arrangement in which the horizontal transport path B and the inclined path C are connected. Depending on the transport path, there may be a case where only the horizontal transport path B is arranged or only the inclined path C is arranged. A transport cart D is installed on the horizontal transport path B, and the transport article A is manufactured on the transport cart D. Carriage D is ramp C
When the transport path is set as the transport path, it must be manufactured in advance according to the inclination angle of the ramp C so that the transported article A is kept horizontal.

<B> Arrangement of Seal Unit FIG. 5 is a plan view showing a state in which the seal unit 1 is arranged on the bottom of the conveyed article A, and FIG. 6 is a partial side view thereof. The seal unit 1 includes a corner unit 11 attached to the bottom of the corner of the article A and a linear unit 12 attached to the bottom of the straight section of the article A.
1 and 12 are arranged at the bottom of the conveyed article A, respectively. In FIG. 6, a connection lip 7 made of a thin rubber or the like is provided at one end of each of the units 11, 12 or an adjacent portion of the units 11, 11 to perform a sealing function of the adjacent unit.
A similar effect can be obtained by connecting the adjacent portions of the units 11, 12 or 11, 11 with an airtight fastener or the like as a means for achieving the sealing function of the adjacent portions in addition to the connection lip 7. Can be. (Not shown)

<C> Supply of Pressure Water FIG. 7 is a side sectional view showing a state where the seal unit 1 according to the present invention is mounted on the bottom surface of the conveyed article A, and FIG. It is. A notch C is provided around the bottom surface of the conveyed object A, and the seal unit 1 is inserted into the notch C and mounted. As shown in FIG. 8, the seal unit 1 at the time of insertion has an end portion sandwiched between the back plate 4 and the holding metal member G to form a gap S, and is in an integrated and folded state. From the water supply valve 6 attached to the end of the back plate 4, pressurized water is supplied into the gap S via the supply port 41. When the pressurized water is supplied to the inside of the seal unit 1 and becomes full, the front end of the close contact seal 2 comes into close contact with the transfer path B, whereby the bottom surface of the transfer object A is defined inside and outside.

<4> Floating of conveyed material The pressure water continuously supplied is supplied to the opening 3 of the hermetic seal 3.
When the water pressure P1 in the seal unit 1 and the water pressure P2 in the bottom surface of the conveyed object A become equal to each other, the water is supplied from the surface of the conveyance path B to the front end of the close contact seal 2 from the top of the contact seal 2. Then, the same amount of water as the supplied pressure water flows out as a thin water film, and the conveyed object A floats on the thin water film at the contact seal 2. Therefore, the friction at this time becomes a state in which the frictional force is very small due to the viscosity of water.
Water pressure P1 in the seal unit 1 surrounded by the contact seal 2
Is kept constant while being balanced with the weight of the article A. (Fig. 2)

<E> Movement of Conveyed Object In a state in which the transferred object A is balanced with the weight of the conveyed object A, the conveyed object A moves with a slight force. It can be moved by towing by any means such as a winch or a hydraulic jack. Further, when the transport cart D is moved on the inclined road C, the transport cart D can be slid in a lower direction by the horizontal component force of its own weight, and can be moved without using the traction means. Guide rollers or the like are provided on both sides or one side of the transport path to restrict the movement to the left and right with respect to the traveling direction. (Not shown)

[0018]

FIG. 9 is a side sectional view showing a state in which a seal unit 1 is installed via a mounting member 8 at a lower portion of a side surface of a conveyed object A, and FIG. FIG. In the present embodiment, as shown in FIG. 11, pressure water is supplied to the internal space of the seal unit 1 from the water supply valve 6 via the water supply port 41 in advance and filled during the moving operation. After the pressurized water fills the internal space of the seal unit 1, by closing the water supply valve 6,
The tip of the contact seal 2 is in close contact with the transport path B, and the bottom surface of the transported object A is defined inside and outside. In this state,
Pressure water is supplied from a water supply port 41 provided in the transport path B from a slight gap between the bottom surface of the transported object A and the transport path B to increase the internal pressure. At this time, the pressure P1 filling the internal space of the seal unit 1 causes the inside of the bottom surface of the conveyed article A and the outside to be defined by the close contact seal 2, so that the gap between the bottom face of the conveyed article A and the conveyance path B is generated. It must be greater than the supplied pressure P2. The following operation is the same as in the first embodiment, and a description thereof will not be repeated.

[0019]

[Embodiment 3] FIG. 12 is a side sectional view showing an installation state in a case where the seal unit 1 has a single structure.
FIG. 13 is a side sectional view showing a state in which the transported object A is levitated. In the present embodiment, the seal unit 1 includes one airtight seal 3 and a supply port 41 installed on the bottom surface of the conveyed article A.
, A fixing plate 9 for fixing the hermetic seal 3 to the back plate 4, and a holding member G for maintaining an interval between the bottom surface of the conveyed object A and the conveying path B. The airtight holding means between the adjacent seal units 1 and 1 is the same as described above.
After supplying the pressurized water into the airtight seal 3 from the supply port 41 to increase the internal pressure and define the inside and the outside of the bottom surface of the transported object A, the transported object A is floated by the same method as described above,
Things that move. Although the case where water is used as the pressure medium has been described above, any other medium such as air may be used.

[0020]

Since the present invention has been described above,
The following effects can be obtained. <B> After the lower part of the conveyed product is sealed with a seal unit, a pressure medium is supplied to the entire bottom area of the conveyed product to support the weight, so that the conveyed product can be supported at low pressure, and high-pressure water supply equipment and air supply equipment Do not need. <B> The seal unit may be processed to an arbitrary size in accordance with the shape of the conveyed object. Only the circumference is sufficient. <C> For the same reason, the amount of water leakage from the gap below the conveyed material is reduced, and the capacity of water supply and air supply equipment can be reduced. <D> Since the mechanism for reducing the friction of the movement is constituted only by the divided and unitized seal, the attachment and the detachment are easy. <E> For the same reason, it is possible to arrange according to the shape and size of the conveyed object, and it is easy to divert. <F> Since the seal unit is mounted around the lower part of the conveyed article and used, the processing of the conveyed article itself is small and the method of use is simple. <G> Maintenance and repairs for construction work are easy only at the lower part of the conveyed goods, and are easy.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a state where a seal unit according to the present invention is mounted on a bottom surface of a conveyed object and is floated.

FIG. 2 is a partially enlarged side sectional view of the same.

FIG. 3 is a plan view showing a layout of the entire production yard;

FIG. 4 is a side view of the same.

FIG. 5 is a plan view showing a situation where a seal unit is arranged at the bottom of a conveyed object.

FIG. 6 is a partial side view of the same.

FIG. 7 is a side sectional view showing a state in which a seal unit is mounted on a bottom surface of a conveyed object.

FIG. 8 is an enlarged sectional side view of the same.

FIG. 9 is a side cross-sectional view showing another embodiment in which a seal unit is provided via a mounting member at a lower portion of a side surface of a conveyed object.

FIG. 10 is a side sectional view showing a state where the above is floated.

FIG. 11 is an enlarged sectional side view showing a state where pressure water is supplied to and filled with an internal space of the seal unit.

FIG. 12 is a side sectional view showing another embodiment in which the seal unit has a single structure.

FIG. 13 is a side sectional view showing a floating state of the above.

Claims (7)

[Claims] 1. A seal which is attached to a lower part of a heavy-weight conveyed object and supplies a pressure medium between the conveyer and a conveying path to define a space, the seal comprising a steel-coated contact seal and a soft hermetic seal. A seal unit having a hollow double structure, wherein the seal having the hollow double structure includes a corner unit attached to a lower corner of the conveyed article, a linear unit attached to a straight section below the conveyed article, and each of the units. A seal unit characterized by comprising a back plate that integrates the seal unit. 2. The seal unit according to claim 1, wherein a soft hermetic seal among the hollow double-structured seals includes:
A seal unit having an opening. 3. A seal attached to a lower part of a heavy-weight conveyed article and supplying a pressure medium between the conveyed path and a space to define a space, wherein a back plate having a supply port provided on a bottom surface of the conveyed article; A hermetic seal having a single-layer structure having an opening, an airtight holding material provided at the end of the hermetic seal, and a packing material installed between the back plate and the conveyed object; A seal unit comprising: a corner unit to be mounted on a corner portion of a sheet; and a linear unit to be mounted on a straight portion below a conveyed object. 4. A method for moving a conveyed object in which a heavy object is lifted and moved, wherein a seal unit having a hollow double structure is mounted around a lower portion of the conveyed object, and after a pressure medium is supplied to the inside of the seal unit. A method of moving a conveyed object using a seal unit, comprising: supplying a pressure medium into a space defined on a bottom surface of the conveyed object defined by the seal unit; 5. A method for moving a conveyed object using a seal unit according to claim 4, wherein the seal unit is mounted in a notch provided on an outer peripheral portion of a bottom surface of the conveyed object, and a pressure medium is supplied inside the seal unit. Supplying and defining the space on the bottom of the conveyed object, and supplying the pressure medium to the space between the bottom surface of the conveyed object and the conveyance path from the opening provided in the airtight seal and moving the conveyed object while floating A method for moving a conveyed object using a seal unit. 6. A method for moving a conveyed object using a seal unit according to claim 4, wherein the seal unit is mounted on a lower portion of a side surface of an outer periphery of the conveyed object, and a pressure medium is supplied to the inside of the seal unit to perform a bottom surface of the conveyed object. The seal unit is characterized in that a pressure medium is supplied from a supply port provided in the transport path to a space between the bottom surface of the transported article and the transport path, and the transported article moves while floating. How to move the transported goods used. 7. A method of moving a conveyed object that floats and moves a heavy conveyed object, wherein the seal unit is mounted via a back plate having a supply port provided on a bottom surface of the conveyed object. The packing material installed between the conveyed objects blocks water leakage from the joint, and the pressure medium is supplied from the supply port on the back plate to the space between the conveyed object bottom surface and the convey path, and the conveyed objects move while floating. A method of moving a conveyed object using a seal unit.