OUTRIGGER EXTEND-RETRACT SYSTEM CAPABLE OF HORIZONTALLY EXTENDING WITH THREE SEGMENTS

Abstract

 The present invention relates to an outrigger extend-retract system with compact structure capable of horizontally extending with three segments (11, 12, 13) that enables the outriggers to be extended and shortened used in telescopic boom or knuckle boom cranes. Furthermore, the system comprises two pulleys (70, 120), an organized chain (100), a hydraulic line (80), a piston sleeve (20) and an electric line (90) which moves within the organized chain with the hydraulic line and provides electrical connections of the outrigger.

Description

Technical Field

[0001] The present invention relates to an outrigger extend-retract system that can extend and shorten in the telescopic boom and knuckle boom cranes.

[0002] The present invention particularly relates to an outrigger extend-retract system with compact structure capable of horizontally extending with three segments that enables the outriggers to be extended and retracted by means of a single piston by opening and closing telescopically in a synchronous manner.

Present State of the Art

[0003] Today, telescopic boom and knuckle boom on board cranes are widely used to transport large tonnage loads such as machinery, equipment etc. During the operation of telescopic boom and knuckle boom cranes on-board, the support point of the crane should be kept at a point as far as possible from the slewing ring against the moment formed in the slewing ring. Therefore, outriggers are used in telescopic boom and knuckle boom cranes and said outriggers are opened and brought to the appropriate position on the ground during the operation of telescopic boom and knuckle boom cranes.

[0004] The outriggers used in the present state of the art are generally opened and closed by extending and retracting the same in three stages on the horizontal axis. This extending and retracting movement is carried out by a mechanism with three hydraulic pistons placed in the outriggers. Moreover, since there is not enough space in outriggers, locating the mechanism that performs the extending and retracting process inside the outrigger during the assembly phase causes loss of time and high costs in production. Furthermore, due to the three-piston mechanism and the hydraulic lines of these pistons, a serious cost increase and extra weight in the crane structure is seen. Meanwhile, the hydraulic line and the cables of the electric line that influence the operation of the system must be connected to the outside of the outrigger since the mechanism occupies a lot of space in the outrigger. Usage of external drums is considered for this. Furthermore, the hoses of the hydraulic line and, the cables of the electric line carried outside the outrigger can be exposed to external factors and break down easily. Therefore, loss of labor might occur during the operation of telescopic boom or knuckle boom cranes due to malfunction, but work accidents may occur in case of a possible explosion due to the transportation of hydraulic lines from outside the outrigger.

[0005] As a result, in order to solve the abovementioned problems and the insufficiency of the current solutions makes it necessary to make a development in the relevant technical field.

Aim of the Invention

[0006] The present invention is related to an outrigger extend-retract system capable of horizontally extending with three segments which eliminates the abovementioned disadvantages and brings new advantages to the relevant technical field.

[0007] The main aim of the invention is to provide an outrigger extend-retract system with compact structure that enables the outriggers to be extended and shortened by means of a single piston.

[0008] The aim of the invention is to enable the outriggers to be opened and closed telescopically by means of a single piston in a synchronous manner.

[0009] Another aim of the invention is to reduce the total weight of the outrigger by opening and closing the outriggers by means of a single piston.

[0010] Another aim of the invention is to provide that the hydraulic line and the electric line are taken into the telescopic rail and move within the telescopic rail during the opening and closing of extend-retract system.

[0011] Another aim of the invention is to eliminate the use of external drums with the presence of the hydraulic line and the electric line within the telescopic rail.

[0012] Another aim of the invention is to eliminate the failure of the hydraulic line and the power line due to external factors, and in case of a possible breakdown, to prevent the occupational accidents and work losses due to breakdowns.

[0013] Another aim of the invention is to reduce the cost by eliminating the difficulties encountered during the assembly of extend-retract system to the outrigger.

[0014] An extend-retract system that enables the outriggers to be extended and shortened used in telescopic boom or knuckle boom cranes in order to fulfill all aims mentioned above and obtained from the following detailed description and comprises;

• main sleeve rail with a fixed structure,
• 1^st rail that opens and closes by moving back and forth within the main sleeve rail,
• 2^nd rail that opens and closes by moving back and forth within 1^st rail,
• 3^rd rail that opens and closes by moving back and forth within 2^nd rail,
• piston sleeve with a fixed structure connected into the 2^nd rail,
• 1^st rod, which is engaged into the main sleeve rail and opens and closes the 1^st rail by entering into the piston sleeve,
• 2^nd rod, which is engaged into the 1^st rail and opens and closes the 2^nd rail by entering into the piston sleeve,
• during the opening movement of the 2^nd rail, the extending chain or rope that opens the 3^rd rail by extending the same on the 2^nd pulley engaged to the 3^rd rail,
• during the closing movement of the 2^nd rail, the retracting chain or rope that opens the 3^rd rail by retracting the same on the 1^st pulley engaged to the 2^nd rail,
• organized chain moving back and forth within the rail connected to the 1^st rail,
• hydraulic line that moves within the organized chain and enables the movement of the 1^st rod and 2^nd rod,
• electric line that moves within the organized chain with the hydraulic line and provides the electrical connections of the outrigger,
• pipe that brings the hydraulic line and the electric line to end of the 3^rd rail.

[0015] The structural and characteristic features of the present invention will be understood clearly by the following drawings and the detailed description made with reference to these drawings. Therefore the evaluation shall be made by taking these figures and the detailed description into consideration.

Figures Clarifying the Invention

[0016] 

Figure 1a: is a perspective view of the inventive extend-retract system.

Figure 1b: is a perspective view of the inventive extend-retract system from another angle.

Figure 2: is an internal detailed view of the inventive extend-retract system.

Description of the Part References

[0017] 

10. Main sleeve rail

11. 1^st rail

12. 2^nd rail

13. 3^rd rail

20. Piston sleeve

30. 1^st rod

40. 2^nd rod

50. Extending chain or rope

60. Retracting chain or rope

70. 1^st pulley

80. Hydraulic line

90. Electric line

100. Organized chain

110. Rail

120. 2^nd pulley

130. Pipe

Detailed Description of the Invention

[0018] In this detailed description, the preferred alternatives of the inventive extend-retract system is described only for clarifying the subject manner such that no limiting effect is created.

[0019] The general view of the inventive extend-retract system that enables the outriggers to be extended and shortened used in telescopic boom or knuckle boom cranes is given in figure 1a and 1b. Accordingly extract-retract system mainly comprises the following; main sleeve rail (10) with a fixed structure, 1^st rail (11) that opens and closes by moving back and forth within the main sleeve rail (10), 2^nd rail (12) that opens and closes by moving back and forth within 1^st rail (11), 3^rd rail (13) that opens and closed by moving forward backward in the 2^nd rail (12), piston sleeve (20) with a fixed structure connected into the 2^nd rail (12), 1^st rod (30), which is engaged into the main sleeve rail (10) and opens and closes the 1^st rail (11) by entering into the piston sleeve (20), 2^nd rod (40), which is engaged into the 1^st rail (11) and opens and closes the 2^nd rail (12) by entering into the piston sleeve (20), during the opening movement of the 2^nd rail (12), the extending chain or rope (50) that opens the 3^rd rail (13) by extending the same on the 2^nd pulley (120) engaged to the 3^rd rail (13), during the closing movement of the 2^nd rail (12), the retracting chain or rope (60) that opens the 3^rd rail (13) by retracting the same on the 1^st pulley (70) engaged to the 2^nd rail (12), hydraulic line (80) that moves within the organized chain (100) moving back and forth within the rail (110) connected to the 1^st rail (11), and enables the movement of the 1^st rod (30) and 2^nd rod (40), electric line (90) that moves within the organized chain (100) with the hydraulic line (80) and provides the electrical connections of the outrigger, pipe (130) that conveys the hydraulic line (80) and electric line (90) to the end of the 3^rd rail (13).

[0020] The main sleeve rail (10), 1^st rail (11), 2^nd rail (12) and 3^rd rail (13), which constitute the main structure of the inventive extend-retract system, have a structure that gradually opens and closes in a telescopic manner in the horizontal axis. Main sleeve rail (10) is fixed. A fixed piston sleeve (20) is connected inside the 2^nd rail (12) to enable the opening and closing of the 1^st rail (11) and 2^nd rail (12).

[0021] 1^st rod (30) that opens and closes the 1^st rail (11) by opening and closing into the piston sleeve (20) is engaged into the main sleeve rail (10) and 2^nd rod (40) that opens and closes the 2^nd rod (12) by opening and closing into the piston sleeve (20) in engaged into the 1^st rail (11).

[0022] The opening and closing movement of the 3^rd rail (13) is provided by the extending chain or rope (50) that opens the 3^rd rail (13) by extending the same on the 2^nd pulley (120) connected to the 3rd rail (13) during the opening movement of the 2^nd rail (12) and by a retracting chain or rope (60) which closes the 3^rd rail (13) on the 1^st pulley (70) connected to the 2^nd rail (12), during the closing movement of the 2^nd rail (12).

[0023] There is an organized chain (100) that moves back and forth in the rail (110) engaged to the 1st rail (11). The hydraulic line (80) that enables the movement of the 1^st rod (30) and the 2^nd rod (40) and the electric line (90) that provides the electrical connections of the outrigger, move within the organized chain (100). At the same time, said hydraulic line (80) and the electric line (90) are connected to the pipe (130) that is engaged the 3^rd rail (13) passing through the right and left sides of the 2^nd pulley (120). Thus, the hydraulic line (80) and the electric line (90) have been brought to the end of the 3^rd rail (13).

The operating principle of the inventive extend-retract system is as follows:

[0024] The 1^st rod (30) is opened by means of the hydraulic line (80) inside the piston sleeve (20) to open extend-retract system, and it opens the 1^st row (11) by extending the same from the main sleeve rail (10). Then the 2nd rod (40) opens and opens the 2nd row (12) by pushing the same through the 1st rail (11). During the opening of the 2^nd rail (12), the extending chain or rope (50) on the 2^nd pulley (120) engaged to the 3^rd rail (13) opens the 3^rd rail (13) by extending the same. Thus, the extension of the outrigger (not shown in the figures) is ensured.

[0025] During the closing of extend-retract system, the 1^st rod (30) closes and closes the 1^st row (11) by retracting the same to the main sleeve rail (10). Then the 2nd rod (40) closes and the 2nd row (12) by retracting the same inside the 1st rail (11). During the closing movement of the 2nd rail (12), the retracting chain or rope (60) that is on the 1st pulley (70) engaged to the 2nd rail (12) closes the 3rd rail (13) by retracting the same into the 2nd rail (12).

Claims

1. An extend-retract system that enables the outriggers to be extended and shortened used in telescopic boom or knuckle boom cranes, characterized in comprising;

- main sleeve rail (10) with a fixed structure,

- 1^st rail (11) that opens and closes by moving back and forth within the main sleeve rail (10),

- 2^nd rail (12) that opens and closes by moving back and forth within 1^st rail (11),

- 3^rd rail (13) that opens and closes by moving back and forth within 2^nd rail (12),

- piston sleeve (20) with a fixed structure connected into the 2^nd rail (12),

- 1^st rod (30), which is engaged into the main sleeve rail (10) and opens and closes the 1^st rail (11) by entering into the piston sleeve (20),

- 2^nd rod (40), which is engaged into the 1^st rail (11) and opens and closes the 2^nd rail (12) by entering into the piston sleeve (20),

- during the opening movement of the 2^nd rail (12), the extending chain or rope (50) that opens the 3^rd rail (13) by extending the same on the 2^nd pulley (120) engaged to the 3^rd rail (13),

- during the closing movement of the 2^nd rail (12), the retracting chain or rope (60) that opens the 3^rd rail (13) by retracting the same on the 1^st pulley(70) engaged to the 2^nd rail (12),

- organized chain (100) moving back and forth within the rail (110) connected to the 1^st rail (11),

- hydraulic line (80) that moves within the organized chain (100) and enables the movement of the 1^st rod (30) and 2^nd rod (40),

- electric line (90) that moves within the organized chain (100) with the hydraulic line (80) and provides the electrical connections of the outrigger,

- pipe (130) that conveys the hydraulic line (80) and electric line (90) to the end of the 3^rd rail (13).

Amended claims

Amended claims in accordance with Rule 137(2) EPC.

1. An extend-retract system that enables the compact structure capable of horizontally extending with three segments that enables the outriggers to be extended and retracted by means of a single piston by opening and closing telescopically in a synchronous manner in telescopic boom or knuckle boom cranes, characterized by comprising;

- a main sleeve rail (10) with a fixed structure,

- a 1^st rail (11) that is configured to open and close by moving back and forth within the main sleeve rail (10),

- a 2^nd rail (12) that is configured to open and close by moving back and forth within the 1^st rail (11),

- a 3^rd rail (13) that is configured to open and close by moving back and forth within the 2^nd rail (12),

- a piston sleeve (20) with a fixed structure connected into the 2^nd rail (12),

- a 1^st rod (30), which is engaged into the main sleeve rail (10) and which is configured to open and close the 1_st rail (11) by entering into the piston sleeve (20),

- a 2^nd rod (40), which is engaged into the 1^st rail (11) and which is configured to enter into the piston sleeve (20) to open and close the 2^nd rail (12)

- a 2^nd pulley (120

- an extending chain or rope (50) that is configured to open the 3^rd rail (13) by extending the same on the 2^nd pulley (120) engaged to the 3^rd rail (13),

- a 1^st pulley(70),

- a retracting chain or rope (60) that opens the 3^rd rail (13) by retracting the same on the 1^st pulley(70) engaged to the 2^nd rail (12),

- a rail (110),

- an organized chain (100) which is configured to moveed back and forth within the rail (110) connected to the 1^st rail (11),

- a hydraulic line (80) that is configured to move within the organized chain (100) and enable the movement of the 1^st rod (30) and 2^nd rod (40),

- an electric line (90) that is configured to move within the organized chain (100) with the hydraulic line (80) and that is configured to provide the electrical connections of the outrigger,

- a pipe (130) that conveys the hydraulic line (80) and electric line (90) to the end of the 3^rd rail (13).

Drawing