EP1404567A1 - Track-shoe of amphibious caterpillar vehicle - Google Patents

Track-shoe of amphibious caterpillar vehicle

Info

Publication number
EP1404567A1
EP1404567A1 EP02743945A EP02743945A EP1404567A1 EP 1404567 A1 EP1404567 A1 EP 1404567A1 EP 02743945 A EP02743945 A EP 02743945A EP 02743945 A EP02743945 A EP 02743945A EP 1404567 A1 EP1404567 A1 EP 1404567A1
Authority
EP
European Patent Office
Prior art keywords
track
shoe
caterpillar
vehicle
amphibious
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP02743945A
Other languages
German (de)
French (fr)
Other versions
EP1404567A4 (en
Inventor
Chung-Chul Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1404567A1 publication Critical patent/EP1404567A1/en
Publication of EP1404567A4 publication Critical patent/EP1404567A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/20—Tracks of articulated type, e.g. chains
    • B62D55/202—Wheel engaging parts; Wheel guides on links
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/26—Ground engaging parts or elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; VEHICLES CAPABLE OF TRAVELLING IN OR ON DIFFERENT MEDIA, e.g. AMPHIBIOUS VEHICLES
    • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
    • B60F3/0007—Arrangement of propulsion or steering means on amphibious vehicles
    • B60F3/0015—Arrangement of propulsion or steering means on amphibious vehicles comprising tracks specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/26—Ground engaging parts or elements
    • B62D55/28—Ground engaging parts or elements detachable
    • B62D55/286—For soft grounds, e.g. consisting of snow or swamp

Definitions

  • the present invention relates to a track-shoe for an amphibious caterpillar vehicle. More particularly, the invention relates to a track-shoe for an amphibious caterpillar vehicle with mobility on land and water, wherein hollow space is formed inside the track-shoe in order to provide buoyancy to the track-shoe and wherein an arc-shaped groove is formed at the frontal side of the track-shoe in order to push out water.
  • Conventional amphibious caterpillar vehicle uses a driving wheel (for example sprocket) and a driven wheel (for example sprocket) which can rotate at the frontal and rear sides of the main body respectively, and a caterpillar in which a plurality of track shoes are interconnected like chain is rolled on the outside of the driving wheel and driven wheel.
  • a driving wheel for example sprocket
  • a driven wheel for example sprocket
  • the caterpillar which is rolled like chain at the driving wheel and driven wheel, is rotated according to the rotation of the driving wheel. At this time, the rotating caterpillars which contact the ground pushes forward the amphibious caterpillar vehicle that it moves in the rotating direction of the caterpillar.
  • Tanks or construction heavy equipments which move on the ground are examples of the conventional amphibious caterpillar vehicle.
  • the track shoe of the caterpillar is made of metal or metal combined with rubber.
  • the amphibious caterpillar vehicle with mobility on land and water such as armored car, as show in Fig. 7, employs a track shoe wherein a connecting bracket 7 is formed on the frontal and rear side so that adjacent track-shoes 5 can be interconnected by using pin, and wherein a plurality of square shaped ribs Hare formed on the outside of the track-shoe body 6 in the protruding form interconnecting each other.
  • the rib 11 on the center portion of in said ribs 11 has a groove 12 with predetermined depth between the inside surface of the rib 11 and outside surface of the track-shoe body 6.
  • rubber materials 13 are inserted to prevent damage of road and to absorb vibration.
  • a sprocket catching hole 14 is formed on the track-shoe body in the same place of the rib between the rib 11 on the center and a rib on the edge, and with the same shape as the shape of the interior portion.
  • track-shoe 5 installed on the conventional amphibious caterpillar vehicle with mobility on land and water which is the same as the track-shoe installed on the tank and construction heavy equipments in that the track-shoe pushes forward the vehicle by the rotation of caterpillar.
  • the track shoe of amphibious caterpillar vehicle has additional function of pushing out water by the ribs 11 and grooves 12 formed by the ribs 11.
  • the amphibious caterpillar vehicle with mobility on land and water is in the form of ship to confer buoyancy to the vehicle.
  • metallic track-shoe 5 is used in conventional amphibious caterpillar vehicle, the caterpillar which is made by interconnecting the track-shoes like chain is very heavy, and too much power is required to propel the vehicle in the water.
  • the object of the present invention is to provide a track-shoe for the caterpillar of amphibious caterpillar vehicle mobility on land and water, which helps the vehicle float on the water and reduces the required power for propelling the vehicle, by forming the track-shoe with structure that can makes the track-shoe easily float and by forming an arc-shaped groove in order to push out the water.
  • the present invention provides a track-shoe of a caterpillar of an amphibious caterpillar vehicle, the caterpillar being installed between a driving wheel and a driven wheel which can rotate on both sides of the vehicle, and the track-shoe including: a connection bracket formed protruding on the front and rear sides of the track-shoe body to interconnect adjacent track-shoes; an hill-shaped protrusion formed below the track-shoe body; an arc-shaped groove formed on the front side of the track-shoe body the hollow surface being in the direction of rotation of the caterpillar; and a hollow space formed inside the track-shoe body.
  • the present invention provides a track-shoe wherein the hollow space formed inside the track-shoe body is filled with buoyant material with low specific weight.
  • Fig. 1 is a schematic plane view of an amphibious caterpillar vehicle installed according to the present invention
  • Fig. 2 is a side view of track-shoe of Fig. 1 ;
  • Fig. 3 is a sectional view illustrating the connection of the driving wheel and the body of the amphibious caterpillar vehicle;
  • Fig. 4 is a sectional view cut through A-A line in Fig. 1 illustrating the winding of the caterpillar to the driving wheel;
  • Fig. 5 is a bottom prospective view of the track-shoe according to the present invention
  • Fig. 6 is a partial sectional view of enlarged "B" part in the Fig.4;
  • Fig. 7 is a prospective view of the track-shoe of the conventional amphibious armored car with mobility on land and water.
  • the track-shoe of this embodiment is, as shown in Fig .1 and 2, a part constructing a caterpillar
  • a connecting bracket 7 is formed protruding on the front and rear side of the track-shoe body 6 for interconnecting adjacent track-shoes 5 by using a pin 5a, and the hill-shaped protrusion 8 is formed below the track-shoe body 6.
  • the hill-shaped protrusion 8 is preferably built in a body with the track-shoe body 6.
  • An arc-shaped groove 9 is formed on the front side of the track-shoe body 6, i.e. the surface seen from the direction of rotation of the caterpillar 3.
  • This arc-shaped groove 9 has the function of pushing out water so that the vehicle can be propelled when the caterpillar 3 rotates.
  • the arc- shaped groove 9 is preferably built in a body with the track-shoe body 6.
  • hollow space is formed inside the arc-shaped groove 9 and the track-shoe body 6, reducing the weight of the caterpillar and enabling the vehicle easily float on the water.
  • the track-shoes form the caterpillar 3 by interconnecting adjacent track- shoes through connection brackets 7 by using pin 5a, and the caterpillar 3 is installed rolling on the driving wheel 1 and driven wheel 2 of the amphibious caterpillar vehicle as shown in Figs.4 and 6.
  • the driving wheel 1 and driven wheel 2 may have the structure that can rotate the caterpillar 3, and in the embodiment of the present invention, as shown in Fig. 3, a cylindrical pipe 17 is installed in the center between two circular boards 16 providing buoyancy to the driving wheel 1 and driven wheel 2. Also, a plurality of rollers 18 are installed with predetermined interval on the outer surfaces of two circular boards 16 outside the cylindrical pipe 17 so that hill-shaped protrusion 8 formed below the track-shoe body 6 can be hooked making it possible to rotate the caterpillar by using the roller 18 and hill-shaped protrusion 8.
  • the driving wheel 1 and driven wheel 2 are connected to rotating axis 19 respectively, and a driven gear 20 is installed on one of the rotating axes 19 and the driven gear 20 is connected to driving gear part 22 through chain 21 which are built on the body 4 of the amphibious caterpillar vehicle.
  • the driving gear 22 is constructed so that driving power is transferred to the driven gear 20 by using motor or by using a passenger pedal a hand-operated pedal of bicycle-type.
  • the part 24 which has not yet described is a support of the caterpillar 3 which is formed protruding outside the both sides of the body 4 of the amphibious caterpillar vehicle.
  • a supporting roller 25 which prevents the caterpillar 3 from slacking is formed on the caterpillar by a supporting bracket 24.
  • the caterpillar 3 as shown in Fig.4 and 6 are constructed by interconnecting the track-shoes in the form of a chain by overlapping connection brackets formed at the front and rear side of the body
  • the caterpillar 3 is installed rolling the driving wheel 1 and driven wheel 2 of the amphibious caterpillar vehicle.
  • the hill-shaped protrusion 8 formed below the track-shoe body 6 is placed contacting the driving wheel 1 and driven wheel 2 (See Figs. 4 and 6), and each hill-shaped protrusion 8 is placed between the rollers 18 which are formed with predetermined interval on the driving wheel 1 and driven wheel 2 respectively.
  • driving gear part 22 driving power of the driving gear is transferred to the driven gear 21 through the chain 21 and the transferred driving power of the driven gear 20 rotates the driving wheel 1 formed on both sides of the upper ends of the rotating axis. Since the hill-shaped protrusion 8 of track shoe body 6 is hooked on the rollers 18 installed on the driving wheel 1 and driven wheel 2, the driven wheel 2 and the caterpillar 3 can rotate by the rotation of the driving wheel, propelling the amphibious vehicle 10.
  • the arc-shaped groove on the front side of the track shoe body composing the caterpillar pushes out water when the cate ⁇ illar rotates in the water and propels the amphibious cate ⁇ illar vehicle.
  • the material and shape of the body of the amphibious cate ⁇ illar vehicle are not described in this embodiment, any material that can make the body of the amphibious cate ⁇ illar vehicle float on the water may be used in the embodiment, and the shape of the body is preferably the shape that can maintain stable state while having less propelling resistance such as the shape of a ship.
  • the amphibious-cate ⁇ illar vehicle 10 using the track-shoe of the present invention is propelled by the hill-shaped groove in the water, and on the ground such as sand ,it is propelled by the track shoe contacting the ground.
  • the vehicle can float with ease and also can be propelled by the arc-shaped groove at the front side of the track-shoe.
  • the track-shoe is applied to the amphibious cate ⁇ illar vehicle for leisure with mobility on land and water, the use of the amphibious cate ⁇ illar vehicle can extended and can give much interests to the passenger.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

The present invention relates to a track-shoe of an amphibious caterpillar vehicle, or more particularly to a track-shoe of an amphibious caterpillar vehicle with mobility on land and water, which comprises a space inside the track-shoe for conferring buoyancy to the track-shoe while simultaneously forming an arc-shaped groove for pushing out water at the frontal side of the track-shoe. The track-shoe of the present invention, in relation to the track-shoe of a caterpillar, which is placed over and between a driving wheel and a driven wheel at the respective frontal and rear sides of the two lateral sides of the main body of an amphibious caterpillar vehicle, comprises connection brackets, each forming a protrusion, side by side, on the front and the rear sides of the body of the track-shoe, for connecting two contiguous sections of the track-shoe; an angular protrusion at the lower side of the body of said track-shoe; an arc-shaped groove on the frontal side of the body of said track-shoe in the direction of rotation of the track-shoe of the caterpillar; and a hollow space inside the body of said track-shoe.

Description

TRACK-SHOE OF AMPHIBIOUS CATERPILLAR VEHICLE
Technical Fields
The present invention relates to a track-shoe for an amphibious caterpillar vehicle. More particularly, the invention relates to a track-shoe for an amphibious caterpillar vehicle with mobility on land and water, wherein hollow space is formed inside the track-shoe in order to provide buoyancy to the track-shoe and wherein an arc-shaped groove is formed at the frontal side of the track-shoe in order to push out water.
Background of the Invention
Conventional amphibious caterpillar vehicle uses a driving wheel (for example sprocket) and a driven wheel (for example sprocket) which can rotate at the frontal and rear sides of the main body respectively, and a caterpillar in which a plurality of track shoes are interconnected like chain is rolled on the outside of the driving wheel and driven wheel.
In this conventional amphibious caterpillar vehicle, the caterpillar, which is rolled like chain at the driving wheel and driven wheel, is rotated according to the rotation of the driving wheel. At this time, the rotating caterpillars which contact the ground pushes forward the amphibious caterpillar vehicle that it moves in the rotating direction of the caterpillar. Tanks or construction heavy equipments which move on the ground are examples of the conventional amphibious caterpillar vehicle. In these vehicles, the track shoe of the caterpillar is made of metal or metal combined with rubber.
Also the amphibious caterpillar vehicle with mobility on land and water such as armored car, as show in Fig. 7, employs a track shoe wherein a connecting bracket 7 is formed on the frontal and rear side so that adjacent track-shoes 5 can be interconnected by using pin, and wherein a plurality of square shaped ribs Hare formed on the outside of the track-shoe body 6 in the protruding form interconnecting each other.
In this type of track-shoe, the rib 11 on the center portion of in said ribs 11 has a groove 12 with predetermined depth between the inside surface of the rib 11 and outside surface of the track-shoe body 6. In this groove 12, rubber materials 13 are inserted to prevent damage of road and to absorb vibration. In addition, a sprocket catching hole 14 is formed on the track-shoe body in the same place of the rib between the rib 11 on the center and a rib on the edge, and with the same shape as the shape of the interior portion. After the track-shoes are interconnected forming a caterpillar, driving wheel is inserted in the sprocket catching hole 14 to rotate the caterpillar of the vehicle.
The function of track-shoe 5 installed on the conventional amphibious caterpillar vehicle with mobility on land and water which is the same as the track-shoe installed on the tank and construction heavy equipments in that the track-shoe pushes forward the vehicle by the rotation of caterpillar. However, the track shoe of amphibious caterpillar vehicle has additional function of pushing out water by the ribs 11 and grooves 12 formed by the ribs 11.
By the way, the amphibious caterpillar vehicle with mobility on land and water is in the form of ship to confer buoyancy to the vehicle. However, since metallic track-shoe 5 is used in conventional amphibious caterpillar vehicle, the caterpillar which is made by interconnecting the track-shoes like chain is very heavy, and too much power is required to propel the vehicle in the water.
Further, this problem restricts the development of amphibious caterpillar vehicle for leisure employing caterpillar for amphibious vehicle such as an armored vehicle, so conventional caterpillar vehicles for leisure is used only on ground or on the water.
Disclosure of the Invention
The object of the present invention is to provide a track-shoe for the caterpillar of amphibious caterpillar vehicle mobility on land and water, which helps the vehicle float on the water and reduces the required power for propelling the vehicle, by forming the track-shoe with structure that can makes the track-shoe easily float and by forming an arc-shaped groove in order to push out the water.
To accomplish this object, the present invention provides a track-shoe of a caterpillar of an amphibious caterpillar vehicle, the caterpillar being installed between a driving wheel and a driven wheel which can rotate on both sides of the vehicle, and the track-shoe including: a connection bracket formed protruding on the front and rear sides of the track-shoe body to interconnect adjacent track-shoes; an hill-shaped protrusion formed below the track-shoe body; an arc-shaped groove formed on the front side of the track-shoe body the hollow surface being in the direction of rotation of the caterpillar; and a hollow space formed inside the track-shoe body. Also the present invention provides a track-shoe wherein the hollow space formed inside the track-shoe body is filled with buoyant material with low specific weight. Brief description of the Drawings
Fig. 1 is a schematic plane view of an amphibious caterpillar vehicle installed according to the present invention;
Fig. 2 is a side view of track-shoe of Fig. 1 ; Fig. 3 is a sectional view illustrating the connection of the driving wheel and the body of the amphibious caterpillar vehicle;
Fig. 4 is a sectional view cut through A-A line in Fig. 1 illustrating the winding of the caterpillar to the driving wheel;
Fig. 5 is a bottom prospective view of the track-shoe according to the present invention; Fig. 6 is a partial sectional view of enlarged "B" part in the Fig.4; and
Fig. 7 is a prospective view of the track-shoe of the conventional amphibious armored car with mobility on land and water.
Best Mode for Carrying out the Invention The a track-shoe of the amphibious caterpillar vehicle according to the present invention will be described in detail with reference to the preferable embodiment along with the attached drawings.
The track-shoe of this embodiment is, as shown in Fig .1 and 2, a part constructing a caterpillar
3 which is made of track-shoes 5 interconnected like a chain, and which is installed between a driving wheel 1 and a driven wheel 2 which can rotate on both sides of the vehicle 4. A connecting bracket 7is formed protruding on the front and rear side of the track-shoe body 6 for interconnecting adjacent track-shoes 5 by using a pin 5a, and the hill-shaped protrusion 8 is formed below the track-shoe body 6. The hill-shaped protrusion 8 is preferably built in a body with the track-shoe body 6.
An arc-shaped groove 9 is formed on the front side of the track-shoe body 6, i.e. the surface seen from the direction of rotation of the caterpillar 3. This arc-shaped groove 9 has the function of pushing out water so that the vehicle can be propelled when the caterpillar 3 rotates. The arc- shaped groove 9 is preferably built in a body with the track-shoe body 6. Also, hollow space is formed inside the arc-shaped groove 9 and the track-shoe body 6, reducing the weight of the caterpillar and enabling the vehicle easily float on the water. In another embodiment, as shown in Fig. 6, the hollow space formed inside the track-shoe body
6 is filled with buoyant material 15 having low specific weight such as foamed polystyrene or foamed urethane to increase buoyancy. As mentioned above, the track-shoes form the caterpillar 3 by interconnecting adjacent track- shoes through connection brackets 7 by using pin 5a, and the caterpillar 3 is installed rolling on the driving wheel 1 and driven wheel 2 of the amphibious caterpillar vehicle as shown in Figs.4 and 6.
The driving wheel 1 and driven wheel 2 may have the structure that can rotate the caterpillar 3, and in the embodiment of the present invention, as shown in Fig. 3, a cylindrical pipe 17 is installed in the center between two circular boards 16 providing buoyancy to the driving wheel 1 and driven wheel 2. Also, a plurality of rollers 18 are installed with predetermined interval on the outer surfaces of two circular boards 16 outside the cylindrical pipe 17 so that hill-shaped protrusion 8 formed below the track-shoe body 6 can be hooked making it possible to rotate the caterpillar by using the roller 18 and hill-shaped protrusion 8.
The driving wheel 1 and driven wheel 2 are connected to rotating axis 19 respectively, and a driven gear 20 is installed on one of the rotating axes 19 and the driven gear 20 is connected to driving gear part 22 through chain 21 which are built on the body 4 of the amphibious caterpillar vehicle. The driving gear 22 is constructed so that driving power is transferred to the driven gear 20 by using motor or by using a passenger pedal a hand-operated pedal of bicycle-type.
The part 24 which has not yet described is a support of the caterpillar 3 which is formed protruding outside the both sides of the body 4 of the amphibious caterpillar vehicle. A supporting roller 25 which prevents the caterpillar 3 from slacking is formed on the caterpillar by a supporting bracket 24.
Now the installation of the caterpillar using the track-shoe of the present invention and the operation of the amphibious caterpillar vehicle using the caterpillar will be described with reference to Figs. 1 and 6. The caterpillar 3, as shown in Fig.4 and 6, are constructed by interconnecting the track-shoes in the form of a chain by overlapping connection brackets formed at the front and rear side of the body
5 by inserting a pin 5a
The caterpillar 3 is installed rolling the driving wheel 1 and driven wheel 2 of the amphibious caterpillar vehicle. In this step, the hill-shaped protrusion 8 formed below the track-shoe body 6 is placed contacting the driving wheel 1 and driven wheel 2 (See Figs. 4 and 6), and each hill-shaped protrusion 8 is placed between the rollers 18 which are formed with predetermined interval on the driving wheel 1 and driven wheel 2 respectively. In this state, as shown in Fig. 3, by operating the driving gear part 22, driving power of the driving gear is transferred to the driven gear 21 through the chain 21 and the transferred driving power of the driven gear 20 rotates the driving wheel 1 formed on both sides of the upper ends of the rotating axis. Since the hill-shaped protrusion 8 of track shoe body 6 is hooked on the rollers 18 installed on the driving wheel 1 and driven wheel 2, the driven wheel 2 and the caterpillar 3 can rotate by the rotation of the driving wheel, propelling the amphibious vehicle 10.
And, the arc-shaped groove on the front side of the track shoe body composing the caterpillar pushes out water when the cateφillar rotates in the water and propels the amphibious cateφillar vehicle.
Although the material and shape of the body of the amphibious cateφillar vehicle are not described in this embodiment, any material that can make the body of the amphibious cateφillar vehicle float on the water may be used in the embodiment, and the shape of the body is preferably the shape that can maintain stable state while having less propelling resistance such as the shape of a ship.
The amphibious-cateφillar vehicle 10 using the track-shoe of the present invention, as described above, is propelled by the hill-shaped groove in the water, and on the ground such as sand ,it is propelled by the track shoe contacting the ground.
Industrial Applicability
According to the present invention, by installing the cateφillar composed of track-shoes having a hollow space inside, the vehicle can float with ease and also can be propelled by the arc-shaped groove at the front side of the track-shoe. In addition, when the track-shoe is applied to the amphibious cateφillar vehicle for leisure with mobility on land and water, the use of the amphibious cateφillar vehicle can extended and can give much interests to the passenger.

Claims

ClaimsWhat is claimed is:
1. A track-shoe of a cateφillar of an amphibious cateφillar vehicle, the cateφillar being installed between a driving wheel and a driven wheel which can rotate on both sides of the vehicle, and the track-shoe including: a connection bracket formed protruding on the front and rear sides of the track-shoe body to interconnect adjacent track-shoes; a hill-shaped protrusion formed below the track-shoe body ; an arc-shaped groove formed on the front side of the track-shoe body the hollow surface being in the direction of rotation of the cateφillar; and a hollow space formed inside the track-shoe body.
2. The track-shoe of Claim 1 , wherein the hollow space formed inside the track-shoe body is filled with buoyant material with low specific weight.
EP02743945A 2001-07-09 2002-07-03 Track-shoe of amphibious caterpillar vehicle Withdrawn EP1404567A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2001-0040937A KR100396213B1 (en) 2001-07-09 2001-07-09 Track-shoe of amphibious caterpillar vehicles for leisure
KR2001040937 2001-07-09
PCT/KR2002/001261 WO2003006305A1 (en) 2001-07-09 2002-07-03 Track-shoe of amphibious caterpillar vehicle

Publications (2)

Publication Number Publication Date
EP1404567A1 true EP1404567A1 (en) 2004-04-07
EP1404567A4 EP1404567A4 (en) 2005-10-19

Family

ID=19711961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02743945A Withdrawn EP1404567A4 (en) 2001-07-09 2002-07-03 Track-shoe of amphibious caterpillar vehicle

Country Status (4)

Country Link
US (1) US20040239182A1 (en)
EP (1) EP1404567A4 (en)
KR (1) KR100396213B1 (en)
WO (1) WO2003006305A1 (en)

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US6582258B2 (en) * 2001-04-23 2003-06-24 Pierre Morin Floating track device

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WO2003006305A1 (en) 2003-01-23
KR20030005582A (en) 2003-01-23
KR100396213B1 (en) 2003-08-27
US20040239182A1 (en) 2004-12-02
EP1404567A4 (en) 2005-10-19

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