WO2015122926A1 - Pneumatic tire compactor with water ballast - Google Patents

Pneumatic tire compactor with water ballast Download PDF

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Publication number
WO2015122926A1
WO2015122926A1 PCT/US2014/016706 US2014016706W WO2015122926A1 WO 2015122926 A1 WO2015122926 A1 WO 2015122926A1 US 2014016706 W US2014016706 W US 2014016706W WO 2015122926 A1 WO2015122926 A1 WO 2015122926A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover plate
ballast
water
pneumatic tire
ballast tank
Prior art date
Application number
PCT/US2014/016706
Other languages
French (fr)
Inventor
Brian Rudge
Justin FLEISCHMANN
Original Assignee
Volvo Construction Equipment Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volvo Construction Equipment Ab filed Critical Volvo Construction Equipment Ab
Priority to US15/119,236 priority Critical patent/US20170009406A1/en
Priority to CN201480075699.6A priority patent/CN106029983A/en
Priority to PCT/US2014/016706 priority patent/WO2015122926A1/en
Priority to EP14882341.2A priority patent/EP3108063A4/en
Publication of WO2015122926A1 publication Critical patent/WO2015122926A1/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/27Rollers therefor; Such rollers usable also for compacting soil with elastically-deformable rolling elements, e.g. pneumatic tyres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/10Manholes; Inspection openings; Covers therefor
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/236Construction of the rolling elements, e.g. surface configuration, rolling surface formed by endless track
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/26Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/026Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00Machine characteristics, parts or accessories not otherwise provided for

Definitions

  • the present disclosure relates to an asphalt compactor, and more particularly, to a pneumatic tire compactor with a self-refilling water ballast system.
  • Compactors or road rollers are construction vehicles used to compact soil or asphalt in the construction of roads. As they use the weight of the vehicle to compress the surface being rolled, the working parts for compacting are mostly steel drums. However, these steel drums can be replaced by pneumatic tires in certain designs. In road construction, pneumatic tire compactors are used to follow normal steel drum compactors to even the surface more smoothly and densely.
  • ballast tank In case of a pneumatic tire compactor, the surface of the ground that tires made of rubber touch is very large, and the weight of pneumatic tires is much smaller than the steel drum. Therefore, installation of a ballast tank is generally needed in order to supplement the lacking weight.
  • the ballast tank is generally installed under the operator platform of the body frame.
  • the ballast tank can be filled with various kinds of heavy materials, such as water, sand, and steel scraps.
  • water ballast is becoming more common as it is cheaper and environmentally friendly.
  • users can occasionally empty the ballast since a lighter machine is easier to transport between work sites.
  • Water ballast is also much easier to be emptied and refilled comparing with wet sand or steel scraps.
  • FIG. 1 shows a part of a conventional pneumatic tire compactor with water ballast which must be refilled from an outside water source. This refilling process is performed manually through access panels 102a, 102b, 102c.
  • Each of the two adjacent panels are connected by hinges 108-n, and the edges of the panel that is opposite to the edges having hinges 1 08-n are mounted on the upper rim of ballast tank 106 by bolts 110-n.
  • bolts 110-n are removed and panels 102b, 102c should be rotated up along the hinges 108-n. Then, a hose is inserted underneath in order to refill ballast tank 106. This is very time-consuming and causes delays in work, resulting in lower productivity.
  • a compactor which has a water ballast tank.
  • An upper portion of the compactor's body frame is open.
  • the ballast tank is installed inside the body frame, and the opened upper portion of the body frame is covered by a cover plate.
  • the water ballast tank has a ballast drain port on the compactor's body frame.
  • the ballast drain port is connected with the ballast tank by a ballast drain hose, and that is used to drain out some water from the ballast tank.
  • ballast tank of the present disclosure is refilled with water falling onto the cover plate through the holes on the cover plate. Therefore, the refilling method of the present disclosure is completely environmentally friendly, economical and time saving.
  • FIG. 1 is a perspective view of a conventional water ballast system of which the cover plate has three panels and hinges between each adjacent two panels;
  • FIG. 2 is a side view of a compactor of which the water ballast system according to an embodiment of the present disclosure is installed under the cover plate;
  • FIG. 3a and FIG. 3b are perspective views of part "A" in FIG. 2;
  • FIG. 4 is a perspective view of a water ballast system according to another embodiment of the present disclosure of which the cover plate has a water inducing slope;
  • FIG. 5 is a perspective view of a water ballast system according to yet another embodiment of the present disclosure of which the water ballast tank has a water level sensor;
  • FIG. 2 shows a pneumatic tire compactor 200 in its entirety having a water ballast system according to an embodiment of the present disclosure.
  • An upper portion of the compactor's body frame is open.
  • a ballast tank 206 is installed inside the body frame, and the opened upper portion of the body frame is covered by a cover plate 204.
  • the edges of cover plate 204 are placed on the upper rim of the body frame and joined to the frame by appropriate means such as bolts 216-n.
  • ballast tank 206 is installed under cover plate 204.
  • Cover plate 204 is disposed alongside a cabin plate 210 above the body frame.
  • Cabin plate 210 is the plate on which a cabin 202 is mounted.
  • Ballast tank 206 is filled with water.
  • a drain hole 212 is formed on the side of ballast tank 206. Drain hole 212 is connected with a drain hose 214 and the other end of drain hose 214 is connected with a ballast drain port 208. Ballast drain port 208 is on the side of compactor 200's body frame. Drain hole 212 can be formed on any appropriate position of ballast tank 206 based on needs. Likewise, ballast drain port 208 can also be formed on any appropriate position of the body frame. It is preferable that ballast drain port 208 is on the lower side of compactor 200. Users can drain out ballast tank 206 by controlling ballast drain port 208.
  • Ballast tank 206 is filled with water on site while working to achieve the desired weight. However, the lighter machine is easier to transport between work sites. Therefore, when transporting the machine to another site, users can drain water through ballast drain port 208 to empty ballast tank 206.
  • FIG. 3a and FIG. 3b show same perspective views of part "A" in FIG. 2.
  • Cover plate 204 has a plurality of holes 300-n. Holes 300-n are scattered on cover plate 204, so rainwater can be drained into ballast tank 206 through holes 300-n.
  • the number of holes 300-n can be increased at the center location of cover plate 204, or holes 300-n can be only formed at the center location of cover plate 204. This is efficient since the natural vibration and the turns of the machine should allow any collected water to drain into ballast tank 206. Holes 300-n can also be used for drainage of any water used to clean the platform surface of the machine.
  • cover plate 204 is made of a single plate. However, based on needs, cover plate 204 can be made of more than two panels.
  • FIG. 3a shows cover plate 204 having two panels 304a and 304b. Panels 304a and 304b are connected by seamless joints 308-n. Seamless joints 308-n can have structure that the cross section of one panel's edge has a protrusion, and the other panel's edge has a receptor in the opposite direction. The two edge's cross sectional shapes are complementary so that they can be engaged each other.
  • edges 302a, 302b, 302c, 302d, 302e, 302f all around cover plate 204 are angled upwards and raised so that water falling onto cover plate 204 is prevented from draining out over the edges of the machine.
  • These raised edges of cover plate 204 are solid and tight enough to collect water near the edges without draining water out of the machine.
  • the method of the present disclosure is good for the environment and natural. Also, there is no need to provide additional devices for manual refilling such as, hinges, water supply hoses, and storage tanks.
  • FIG. 4 shows a water ballast system according to another embodiment of the present disclosure of which a cover plate 402 has a water inducing slope.
  • the water inducing slope can be designed in various types based on the users' need.
  • the inside periphery of the frame's upper rim has a protrusion running along itself.
  • the protrusion can be formed into a slope-like structure inclined from opposite ending sides to middle side and the middle portion is flat.
  • the edges of cover plate 402 are mounted on the protrusion.
  • FIG. 4 shows cover plate 402 having three panels 404a, 404b and 404c. Panel 404a and panel 404b are mounted being inclined from both ending sides towards the middle portion. Panel 404c is supported by the middle portion of the protrusion. Holes 408a-n are intensively formed on middle panel 404c.
  • cover plate 402 it is not necessary that the edges of cover plate 402 are angled upwards and raised since water falling onto cover plate 402 cannot drain out over the edges.
  • FIG. 5 shows a water ballast system according to yet another embodiment of the present disclosure which has a water level sensor 502.
  • Water level sensor 502 is installed inside of a ballast tank 500 at an appropriate height. When activated, water level sensor 502 sends a corresponding signal to the operation cabin so that users can drain water by opening ballast drain port 208 (shown in FIG. 2).
  • the position of water level sensor 502 can be appropriately decided based on needs. For example, if the machine is used to work on the inclined ground, it is easy for the machine to be inclined. If that happens, the water on ballast tank 500 leans to one side so that water can overflow and spill out naturally. Therefore, the water volume of ballast tank 500 has to be under a set volume that is smaller than full volume of ballast tank 500. Accordingly, it is preferred that water level sensor 502 is installed in the position that it can be activated before ballast tank 500 is fully filled.
  • the self-refilled water ballast is not limited to the pneumatic tire compactors as shown in the embodiments, but can be widely used for various construction machinery equipped with a ballast system.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Road Paving Machines (AREA)

Abstract

A water ballast for a compactor is disclosed. A ballast tank is installed under a cover plate having a plurality of holes. Through the holes of the cover plate, water falling onto the cover plate drains into the ballast tank. The edges all around the cover plate are slightly angled upwards in order to prevent water from draining out of the cover plate. Also, the water ballast has a ballast drain port on the compactor's frame. The ballast drain port is connected with a drain hole on the ballast tank by a drain hose so that it is used to drain out some water from the ballast tank.

Description

PNEUMATIC TIRE COMPACTOR WITH WATER BALLAST
TECHNICAL FIELD
[0001] The present disclosure relates to an asphalt compactor, and more particularly, to a pneumatic tire compactor with a self-refilling water ballast system.
BACKGROUND OF THE INVENTION
[0002] Compactors or road rollers are construction vehicles used to compact soil or asphalt in the construction of roads. As they use the weight of the vehicle to compress the surface being rolled, the working parts for compacting are mostly steel drums. However, these steel drums can be replaced by pneumatic tires in certain designs. In road construction, pneumatic tire compactors are used to follow normal steel drum compactors to even the surface more smoothly and densely.
[0003] In case of a pneumatic tire compactor, the surface of the ground that tires made of rubber touch is very large, and the weight of pneumatic tires is much smaller than the steel drum. Therefore, installation of a ballast tank is generally needed in order to supplement the lacking weight. The ballast tank is generally installed under the operator platform of the body frame.
[0004] The ballast tank can be filled with various kinds of heavy materials, such as water, sand, and steel scraps. Among them, water ballast is becoming more common as it is cheaper and environmentally friendly. Also, users can occasionally empty the ballast since a lighter machine is easier to transport between work sites. Water ballast is also much easier to be emptied and refilled comparing with wet sand or steel scraps.
[0005] However, as a liquid in a road machine, water is very susceptible to spillage, evaporation, and other environmental concerns that result in loss of ballast. In order to maintain a constant and smooth finish, the ballast weight should also remain constant. Therefore, the ballast must be periodically refilled over the course of a day / week / month / season or whenever necessary. [0006] FIG. 1 shows a part of a conventional pneumatic tire compactor with water ballast which must be refilled from an outside water source. This refilling process is performed manually through access panels 102a, 102b, 102c. Each of the two adjacent panels are connected by hinges 108-n, and the edges of the panel that is opposite to the edges having hinges 1 08-n are mounted on the upper rim of ballast tank 106 by bolts 110-n. In order to refill ballast tank 106, bolts 110-n are removed and panels 102b, 102c should be rotated up along the hinges 108-n. Then, a hose is inserted underneath in order to refill ballast tank 106. This is very time-consuming and causes delays in work, resulting in lower productivity.
SUMMARY OF THE INVENTION
[0007] According to one aspect of the present disclosure, there provides a compactor which has a water ballast tank. An upper portion of the compactor's body frame is open. The ballast tank is installed inside the body frame, and the opened upper portion of the body frame is covered by a cover plate.
[0008] Through the holes of the cover plate, rainwater falling onto the cover plate drains into the ballast tank. Additionally, the edges around the cover plate are slightly angled upwards in order to prevent water from draining out of the cover plate. The raised edges of the cover plate are solid such that water can be collected inwards.
[0009] Also, the water ballast tank has a ballast drain port on the compactor's body frame. The ballast drain port is connected with the ballast tank by a ballast drain hose, and that is used to drain out some water from the ballast tank.
[0010] The ballast tank of the present disclosure is refilled with water falling onto the cover plate through the holes on the cover plate. Therefore, the refilling method of the present disclosure is completely environmentally friendly, economical and time saving. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a perspective view of a conventional water ballast system of which the cover plate has three panels and hinges between each adjacent two panels;
[0012] FIG. 2 is a side view of a compactor of which the water ballast system according to an embodiment of the present disclosure is installed under the cover plate;
[0013] FIG. 3a and FIG. 3b are perspective views of part "A" in FIG. 2;
[0014] FIG. 4 is a perspective view of a water ballast system according to another embodiment of the present disclosure of which the cover plate has a water inducing slope;
[0015] FIG. 5 is a perspective view of a water ballast system according to yet another embodiment of the present disclosure of which the water ballast tank has a water level sensor;
DETAILED DESCRIPTION OF THE INVENTION
[0016] Reference will now be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. While the present disclosure will be described in conjunction with the following embodiments, it will be understood that they are not intended to limit the present disclosure to these embodiments alone. On the contrary, the present disclosure is intended to cover alternatives, modifications, and equivalents which may be included within the spirit and scope of the present disclosure as defined by the appended claims. Furthermore, in the following detailed description of the present disclosure, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, embodiments of the present disclosure may be practiced without these specific details.
[0017] FIG. 2 shows a pneumatic tire compactor 200 in its entirety having a water ballast system according to an embodiment of the present disclosure. An upper portion of the compactor's body frame is open. A ballast tank 206 is installed inside the body frame, and the opened upper portion of the body frame is covered by a cover plate 204. The edges of cover plate 204 are placed on the upper rim of the body frame and joined to the frame by appropriate means such as bolts 216-n.
[0018] Accordingly, ballast tank 206 is installed under cover plate 204. Cover plate 204 is disposed alongside a cabin plate 210 above the body frame. Cabin plate 210 is the plate on which a cabin 202 is mounted. Ballast tank 206 is filled with water.
[0019] A drain hole 212 is formed on the side of ballast tank 206. Drain hole 212 is connected with a drain hose 214 and the other end of drain hose 214 is connected with a ballast drain port 208. Ballast drain port 208 is on the side of compactor 200's body frame. Drain hole 212 can be formed on any appropriate position of ballast tank 206 based on needs. Likewise, ballast drain port 208 can also be formed on any appropriate position of the body frame. It is preferable that ballast drain port 208 is on the lower side of compactor 200. Users can drain out ballast tank 206 by controlling ballast drain port 208.
[0020] Ballast tank 206 is filled with water on site while working to achieve the desired weight. However, the lighter machine is easier to transport between work sites. Therefore, when transporting the machine to another site, users can drain water through ballast drain port 208 to empty ballast tank 206.
[0021] FIG. 3a and FIG. 3b show same perspective views of part "A" in FIG. 2. Cover plate 204 has a plurality of holes 300-n. Holes 300-n are scattered on cover plate 204, so rainwater can be drained into ballast tank 206 through holes 300-n.
[0022] The number of holes 300-n can be increased at the center location of cover plate 204, or holes 300-n can be only formed at the center location of cover plate 204. This is efficient since the natural vibration and the turns of the machine should allow any collected water to drain into ballast tank 206. Holes 300-n can also be used for drainage of any water used to clean the platform surface of the machine.
[0023] It is preferable that cover plate 204 is made of a single plate. However, based on needs, cover plate 204 can be made of more than two panels. For example, FIG. 3a shows cover plate 204 having two panels 304a and 304b. Panels 304a and 304b are connected by seamless joints 308-n. Seamless joints 308-n can have structure that the cross section of one panel's edge has a protrusion, and the other panel's edge has a receptor in the opposite direction. The two edge's cross sectional shapes are complementary so that they can be engaged each other.
[0024] As shown in part "B" of FIG. 3b, edges 302a, 302b, 302c, 302d, 302e, 302f all around cover plate 204 are angled upwards and raised so that water falling onto cover plate 204 is prevented from draining out over the edges of the machine. These raised edges of cover plate 204 are solid and tight enough to collect water near the edges without draining water out of the machine.
[0025] Accordingly, by preventing the need to transport water to the job location and by using any water falling on the cover plate, the method of the present disclosure is good for the environment and natural. Also, there is no need to provide additional devices for manual refilling such as, hinges, water supply hoses, and storage tanks.
[0026] FIG. 4 shows a water ballast system according to another embodiment of the present disclosure of which a cover plate 402 has a water inducing slope. The water inducing slope can be designed in various types based on the users' need.
[0027] The inside periphery of the frame's upper rim has a protrusion running along itself. As a preferred embodiment, the protrusion can be formed into a slope-like structure inclined from opposite ending sides to middle side and the middle portion is flat. The edges of cover plate 402 are mounted on the protrusion. For example, FIG. 4 shows cover plate 402 having three panels 404a, 404b and 404c. Panel 404a and panel 404b are mounted being inclined from both ending sides towards the middle portion. Panel 404c is supported by the middle portion of the protrusion. Holes 408a-n are intensively formed on middle panel 404c.
[0028] Panels 404a and 404b inclines towards the middle portion which is the lowest part of cover plate 402. Holes 408a-n are intensively formed on the middle panel 404c. Water falling on cover plate 402 flows down from the ending sides to the middle panel 404c along the slopes of panels 404a, 404b. Then, water collected at the middle panel 404c drains into ballast tank 406 through holes 408a-n.
[0029] As mentioned above, the natural vibration and the turns of the compactor allow water to be collected on the middle of cover plate 402. Therefore, center intensively formed holes 408a-n are helpful to collect water more efficiently. In this embodiment, other holes 408b-n are subsidiary to center intensively formed holes 408a-n.
[0030] In this embodiment, it is not necessary that the edges of cover plate 402 are angled upwards and raised since water falling onto cover plate 402 cannot drain out over the edges.
[0031] FIG. 5 shows a water ballast system according to yet another embodiment of the present disclosure which has a water level sensor 502. Water level sensor 502 is installed inside of a ballast tank 500 at an appropriate height. When activated, water level sensor 502 sends a corresponding signal to the operation cabin so that users can drain water by opening ballast drain port 208 (shown in FIG. 2).
[0032] The position of water level sensor 502 can be appropriately decided based on needs. For example, if the machine is used to work on the inclined ground, it is easy for the machine to be inclined. If that happens, the water on ballast tank 500 leans to one side so that water can overflow and spill out naturally. Therefore, the water volume of ballast tank 500 has to be under a set volume that is smaller than full volume of ballast tank 500. Accordingly, it is preferred that water level sensor 502 is installed in the position that it can be activated before ballast tank 500 is fully filled.
[0033] It should be noted that the self-refilled water ballast, according to the present disclosure, is not limited to the pneumatic tire compactors as shown in the embodiments, but can be widely used for various construction machinery equipped with a ballast system.
[0034] Although the invention has been described with reference to the preferred embodiments in the attached figures, it is noted that equivalents may be employed and substitutions made herein without departing from the scope of the invention as recited in the claims.

Claims

1 . A pneumatic tire compactor with a water ballast system, comprising: a frame of which the top is opened;
a ballast tank installed in said frame;
a cover plate of which the edges are placed on the upper rim of said frame and fixed with said frame, said cover plate having a plurality of holes through which said ballast tank opens to the atmosphere;
a ballast drain port installed on the side of said frame for draining water out of said ballast tank; and
whereby water falling onto said cover plate drains into said ballast tank through said holes.
2. The pneumatic tire compactor as claimed in claim 1 , wherein said cover plate comprising:
a plurality of panels; and
a plurality of seamless joints connecting each of the two adjacent panels.
3. The pneumatic tire compactor as claimed in claim 1 , wherein said edges around said cover plate are angled upwards and raised.
4. The pneumatic tire compactor as claimed in claim 1 , wherein said holes are intensively formed on the middle portion of said cover plate.
5. The pneumatic tire compactor as claimed in claim 1 , wherein said holes are only formed on the middle portion of said cover plate.
6. The pneumatic tire compactor as claimed in claim 1 , further comprising: a water level sensor installed inside of said ballast tank and sending a signal to an operation cabin when the level of the water in said ballast tank is in excess of a set value.
7. The pneumatic tire compactor as claimed in claim 1 , further comprising: a drain hose having one end connected with a drain hole formed on the side of said ballast tank and the other end connected with said ballast drain port.
8. The pneumatic tire compactor as claimed in claim 1 , wherein said ballast drain port is formed on the lower side of said frame.
9. The pneumatic tire compactor as claimed in claim 2, wherein said panels are disposed as being inclined, whereby water on said cover plate flows down along said inclined panels.
10. The pneumatic tire compactor as claimed in claim 9, further comprising: protrusions formed along inside periphery of said frame's upper rim, said protrusion forming an incline angle from the opposite ending sides to the middle portion, and said middle portion being flat; and
wherein said panels are supported by said protrusions.
PCT/US2014/016706 2014-02-17 2014-02-17 Pneumatic tire compactor with water ballast WO2015122926A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US15/119,236 US20170009406A1 (en) 2014-02-17 2014-02-17 Pneumatic tire compactor with water ballast
CN201480075699.6A CN106029983A (en) 2014-02-17 2014-02-17 Pneumatic tire compactor with water ballast
PCT/US2014/016706 WO2015122926A1 (en) 2014-02-17 2014-02-17 Pneumatic tire compactor with water ballast
EP14882341.2A EP3108063A4 (en) 2014-02-17 2014-02-17 Pneumatic tire compactor with water ballast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/016706 WO2015122926A1 (en) 2014-02-17 2014-02-17 Pneumatic tire compactor with water ballast

Publications (1)

Publication Number Publication Date
WO2015122926A1 true WO2015122926A1 (en) 2015-08-20

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US (1) US20170009406A1 (en)
EP (1) EP3108063A4 (en)
CN (1) CN106029983A (en)
WO (1) WO2015122926A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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CN106029983A (en) 2016-10-12
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EP3108063A1 (en) 2016-12-28

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