CONVEYOR INTEGRATED FIXED ELEVATOR SYSTEM

Abstract

The invention relates to a multi-axis, chain-driven stationary elevator system used in automated storage and retrieval systems (ASRS), which is responsible for transporting pallets between floors and transferring them to the racking system.

Description

1 TARIFF CONVEYOR INTEGRATED FIXED ELEVATOR SYSTEM Technical Area 5 The invention relates to automated storage and handling systems (ASRS – Automated Storage (and Retrieval System) used for transporting pallets between floors and on racking systems. multi-axis motion chains that perform tasks in transfer processes. It relates to conveyor-based stationary elevator systems. 10 State of the Art In automated storage and dispatch systems produced with current techniques (ASRS), elevator systems used for transporting products to different floors 15 It only has vertical movement capability. Placing pallets on shelves or Horizontal conveying systems (shuttle or shuttle) are also used for transferring goods to the conveying line. (units) are required. This current structure has the following disadvantages: 20  Vertical and horizontal transportation are carried out with two separate pieces of equipment, making the system mechanical. This increases complexity and investment costs.  Transferring pallets between different systems increases processing time and This leads to synchronization difficulties.  High energy consumption, maintenance requirements, and failure risks reduce system efficiency by 25%. It lowers it.  Mobile elevator systems increase the need for storage space, thus reducing the available space within the warehouse. It restricts its use. For these reasons, current systems result in losses in both energy and time. This is happening, and the system's reliability and sustainability remain limited. In conclusion, under what conditions and in what ways can a stationary elevator with conveyor integration be used? Real-time assessments were made regarding the problems that would be encountered. 2 The invention is particularly useful in many applications found in food, beverage, logistics and industrial production facilities. Lifting, transferring and shipping pallets in multi-level racking storage systems. It is designed for use in preparation processes. The system is classic. By improving only the vertical movement capability of the elevators, the chain conveyor module 5 Thanks to this, it also performs the transfer (horizontal transport) function simultaneously. The evaluations and comparisons of products manufactured using current technology have been carried out, due to the negative aspects described above and the solutions proposed regarding the issue Due to its inadequacy, the Conveyor Integrated Fixed Elevator 10, which is the subject of our invention, Innovation was necessary for the system. Brief Description of the Invention The present invention meets the aforementioned requirements and overcomes all the disadvantages of 15 fixed conveyor integrated system that eliminates the need for a fixed conveyor and offers some additional advantages. It is related to the elevator system. The primary purpose of the invention is to perform vertical and horizontal conveying operations in ASRS systems in a single process. The aim is to offer a fixed elevator structure that can be implemented via an integrated unit. 20 Another purpose of the invention is to integrate servo motors, encoders, sensor groups, and safety circuit breakers. Thanks to its equipped structure, it enables highly precise, safe and synchronized operation. to offer the opportunity. Another objective of the invention is to enable the elevator to move in multiple axes while in a fixed position. By adding these, mechanical complexity is reduced compared to classical systems, and maintenance is facilitated. is provided. Another aim of the invention is to achieve 25% or 30% energy efficiency compared to traditional systems. The goal is to save time and reduce maintenance costs by 40%. Another purpose of the invention is to create a stationary conveyor elevator located inside a warehouse. It creates savings by enabling more efficient placement of shelving systems. 3 Another objective of the invention is to have integrated sensors and safety mechanisms. its purpose is to increase operational safety. Another aim of the invention is to achieve both technical performance and energy sustainability, as well as 5 superiority over existing practices in terms of operational efficiency is the goal. Another aim of the invention is to provide storage space without expanding the existing storage area. It increases its capacity. This invention increases the capacity of an existing storage system by 10. It is designed to increase efficiency by at least 90%. The structural and characteristic features and all the advantages of the invention are given in the figures below. And thanks to the detailed explanation written with references to these figures, it becomes clearer. This will be understood as such, and therefore the evaluation should also be based on these forms and details. 15 This should be done taking the explanation into consideration. Figures that will help understand the invention. The subject of this application is the "Conveyor Integrated Fixed Elevator System" (attached 20). as shown in the figures; Figure 1: Regarding the invention, “Conveyor Integrated Stationary Elevator System”. This is a front view representation image showing all the elements that make up the elevator main line. Figure 2: 25 regarding the subject of the invention, “Conveyor Integrated Fixed Elevator System” Right side view representation including all elements forming the elevator main line. It is an image. Figure 3: Regarding the invention, “Conveyor Integrated Stationary Elevator System”. Left side view representation including all elements forming the elevator main line. It is an image. 30 Figure 4: Regarding the invention, “Conveyor Integrated Stationary Elevator System”. This is a top-down representation image showing all the elements that make up the elevator main line. Figure 5: Regarding the invention, “Conveyor Integrated Stationary Elevator System”. This is a representative image illustrating the connection details that make up the elevator main line. 4 Figure 6: Regarding the invention, “Conveyor Integrated Stationary Elevator System”. This is a representative front view image of the conveyor mechanism for an elevator. Figure 7: Regarding the invention, “Conveyor Integrated Stationary Elevator System”. This is a representative side view image of the conveyor mechanism for an elevator. Figure 8: Subject of the invention “Conveyor Integrated Fixed Elevator System” This is a representative top view image of the conveyor mechanism for an elevator. The drawings do not necessarily need to be scaled and are useful for understanding the invention. Unnecessary details may have been omitted. Furthermore, at least... 10 that are largely identical or at least have largely identical functions The elements are indicated by the same number. Explanation of Part References 1. Elevator body 2. Chain conveyor module 15 3. Vertical lifting mechanism 4. Guide rail system 5. Servo motor controlled drive system 6. Rope and drum assembly 7. Brake and safety cut-off mechanism 20 8. Position and level sensors 9. Main supporting chassis 10. Pallet entry-exit point 11. Vertical supporting column 12. Ropes and pulleys 25 13. Rack and pinion gear system 14. Elevator cabin support connection plates 15. Mounting base (ground plate) 16. Bottom connection base 17. Column base connection plates 30 18. Column interconnecting plates 19. Column vertical bar reinforcement 20. Guidelines 21. Counterweight rail connection group 22. Inner slide car 23. Counterweight slide assembly 24. Rail locking plates 25. Servo Motor Gearbox 26. Interconnecting components 5 27. Bolts and fasteners 28. Upper chain pulley idler shaft sleeve 29. Upper fixing flange 30. Top Allen bolts 31. Conveyor main chassis 10 32. Right chain conveyor module (right row) 33. Left chain conveyor module (left row) 34. Drive shaft (chain side) 35. Load (prismatic box / pallet) 36. Chain return pulleys (front / rear) 15 37. Side guide / centering blocks 38. Drive shaft and coupling assembly 39. Subframe mounting plates 40. Limit pin / stop element 41. Chain rails (carrier slide surfaces) 20 42. Sensor mounting pads 43. Protective side covers Detailed Description of the Invention This detailed explanation outlines the preference for conveyor-integrated stationary elevator systems. The structures that have been established are solely for the purpose of better understanding the subject and in no way It is explained in a way that will not create a limiting effect. The invention relates to 30 multi-level racking systems found in food, beverage, logistics, and industrial production facilities. Used in storage systems for lifting, transferring and shipping pallets. a single system that performs both vertical transport and preparation processes. It eliminates the need for two different pieces of equipment (elevator + shuttle) for horizontal transfer. servo motors, encoders, which lift and save cost, space and energy in the system. 6 With its structure equipped with sensor groups and safety circuit breakers, it offers high precision and safety. and offers the possibility of synchronized operation, with multi-axis movement capability in a fixed position. mechanical complexity and maintenance difficulties encountered in classical systems eliminating the need for shelving systems, saving space within the warehouse, and ensuring their efficiency. Integrated sensors and safety features that enable placement and enhance operational safety. automated storage and dispatch systems (ASRS) that have mechanisms Automated Storage and Retrieval System (ASRS) used for transporting pallets between floors. and is involved in the processes of transferring it to the racking system, multi-axis motion. It is a stationary elevator system with chain conveyor integration that has the capability Feature; 10  A vertically mounted elevator that forms the main structure of the entire load-bearing system. elevator body supporting the cabin(1)  Enables pallets to be loaded into the elevator cabin and transferred to the target floor, The structural body of the chain conveyor module, right chain conveyor module 15 (right row)(32) and left chain conveyor module (left row)(33) chain modules Chain conveyor that carries and provides rigid connection to the elevator cabin. module(2)  Vertical lifting mechanism that moves the elevator cabin up and down(3)  Ensures the linear and safe movement of the lifting mechanism, elevator 20 Reduces friction during vertical cabin movement, provides alignment and stability. guide rail system(4)  High precision in lifting and horizontal movement of the chain conveyor module servo motor that performs this function and provides speed and position feedback. controlled drive system(5) 25  A double drum structure that provides load transfer in the lifting system. Rope and drum assembly(6) which provides balancing and equal torque distribution  Locks the system in case of excessive speed, cable breakage, power failure or malfunction, Stopping, safe operation provided by brake and safety cut-off mechanism(7)  Enables the elevator cabin to be positioned towards the target floor, elevator 30 Automatic stop that detects the upper and lower limit positions of the cabin. position and level sensors(8)  Main load-bearing chassis providing structural strength and vibration reduction(9) 7  Enables the pallet to be loaded into and removed from the system via a conveyor. pallet entry-exit point(10)  withstands all mechanical forces supporting the rack, rail and coupling assemblies. and vertical support column (11) that provides linear alignment  The ropes and cables that perform the lifting and lowering operations of the elevator cabin. reels(12)  Precise, enabling linear and vibration-free transmission of vertical motion. Rack and pinion gear system with positioning contribution(13)  elevator cabin that secures the elevator cabin to the main body carrier connection plates(14) 10  Ensures the elevator is fixed to the ground and that vertical accuracy is maintained. mounting base (ground plate) (15)  The lower part that provides the connection between the elevator column and the ground, creating structural balance. connection base(16)  Column base connection plates that increase the stability of the bottom connection of the vertical column(17) 15  Column interconnection that increases rigidity and prevents torsion between load-bearing profiles llamas(18)  Column vertical bar reinforcement which increases mechanical strength along the column(19)  ensures that the vertically moving elevator cabin moves in a straight line. guide lamellae(20) 20  Counterweight that provides balance and linear motion in rope lifting systems Rail connection group(21)  Internal slide that regulates the vertical sliding movement of the elevator cabin's support parts. car(22)  Counterweight 25 that provides controlled movement of the balance mass on the rail. sled group(23)  Rail locking plates that provide safety locking in the counterweight system(24)  servo motor controlled drive system(5) moves the movement into linear vertical movement Converting servo motor reducer (25)  Interconnecting components that support the overall stability of the structure(26) 30  bolts and fasteners, which are complementary elements of structural assembly elements(27) 8  Upper chain roller forming the upper guiding point of the chain conveyor idler shaft housing(28)  Upper fastening that provides mounting and axial stabilization of the chain roller. flange(29)  Top Allen bolts (30) securing the top connection components 5  As shown in the top view in Figure 4, the direction of material movement is to the right. located on the side, providing driven flow from the right side of the pallet, Right chain conveyor module (right row) that performs transfer at input / output (32)  As shown in the top view in Figure 4, the direction of material movement is to the left 10 located on the side, providing synchronous flow from the left side of the pallet, Left chain conveyor module contributing to centering and balanced transfer. (left row) (33)  right chain conveyor module (right row)(32) and left chain conveyor module (left (sequence)(33) servo-controlled speed / position 15 transmitting moment to chain modules. Drive shaft (chain side) (34) working with synchronization  Chains that maintain tension and alignment at points where the chains change direction return pulleys (front / rear) (36)  Side track that limits the left / right oscillation of the track and ensures centering during transfer. guide / centering blocks(37) 20  Synchronizes two chain lines, providing uniform speed distribution on a single axis. drive shaft and coupling assembly(38)  lower chassis connection plates(39) which provide rigid and adjustable mounting to the elevator cabin  A limit that defines the forward / reverse stroke limit of the track, preventing overdrive. pin / stop element(40) 25  Low friction operation of chain rollers and measured line gauge chain rails (carrier slide surfaces) (41)  Sensor placement surfaces which are mounting surfaces for pallet presence / position sensors shoes(42)  Ensuring operator safety and preventing particle entry, chain lines 30 closing protective side covers(43) It includes. 9 The servo motor controlled drive system (5) converts the movement into linear vertical movement and horizontal movement. It must contain at least one servo motor reducer (25) which converts to transmission. The chain conveyor module (2) is on the right side according to the direction of material movement. right chain conveyor module (right row) (32) positioned on the left side positioned left chain conveyor module (left row) (33), moment to these modules transmitting drive shaft (chain side) (34), chain return pulleys where the chains change direction (36) and includes the drive shaft and coupling assembly (38) that synchronizes the two chain lines. 10 The upper chain pulley idler shaft sleeve (28) which forms the upper guiding point, upper fixing flange (29) which provides axial stabilization and upper fixing flange that secures them It contains Allen bolts (30). Side guide / centering blocks (37) that limit the right / left oscillation of the track, limit pin / stop element (40) and chain rollers that determine the forward / reverse stroke limit Chain rails (carrier slide surfaces) that enable operation with low friction (41) It includes. The lower connection base (16) which increases the lower connection stability of the vertical support column (11), column base connection plates (17), column intermediate connection plates (18) which increase rigidity and The column contains vertical bar reinforcement (19) which increases mechanical strength. Counterweight rail 25 provides balance and linear motion in rope lifting systems. Connection group (21), inner slide that regulates the vertical sliding movement of the elevator cabin. car (22), counterweight sled assembly (23) which provides the movement of the balance mass and It includes rail locking plates (24) that provide safety interlocking. Sensor mounting pads, which are the mounting surfaces for pallet presence and position sensors, 30 (42) and protective side covers (43) that close the chain lines. The invention is a chain conveyor and servo motor that operate integrated on a stationary elevator structure. It consists of a motor, sensors, and safety components. Thus, it provides both vertical transport and... Horizontal transfer is carried out through a single system. The system improves upon the vertical movement capability of classic elevators by replacing the chain drive with a 5-speed system. Thanks to the conveyor module, it can also perform the transfer (horizontal transport) function simultaneously. It fulfills its purpose. The system described in this invention is based on an ASRS (Automated Storage and Retrieval System) structure. It consists of an integrated fixed elevator and conveyor mechanism. The system has 10 Its main task is to transport pallets coming from the production line to the relevant floor, and from there to the shelving unit. to transfer to the system or delivery line. Working principle; 15 As shown in Figure 1, the elevator body (1) is a fixed load-bearing structure and all It carries the main mechanical components of the system. The elevator body (1), vertical carrier The column (11) and the column vertical plate reinforcement (19) were made rigid. The invention is based on the horizontal conveyor line to the elevator interior conveyor main carrier chassis (9). is taken. As shown in the top view in Figure 4, this structure is located on this structure. Right chain conveyor module (right row)(32) and Left chain conveyor module (left row)(33) centers and fixes the pallet by working synchronously. Load (prismatic box / pallet)(35): Example load; transfer scenario on conveyor It shows. The pallet on the conveyor is lifted upwards by the vertical lifting mechanism (3). It is moved. This movement is made possible by a servo motor controlled drive system (5), rope and drum assembly (6) 30 It is carried out through. 11 During elevator movement, the system monitors floor levels with position and level sensors (8). When the target floor is reached, the drive shaft (chain side)(34) engages and the track is activated. It transfers the material horizontally to a racking system or conveyor line. During the vertical movement, the Servo Motor Reducer (25) and the Elevator rack gear 5 It provides high-precision positioning; this structure ensures the system operates vibration-free and in a controlled manner. It contributes to his work. Brake and safety cut-off system in case of excessive speed, power failure or mechanical failure. mechanism(7) is activated; thanks to the rope and brake system, the pallet is securely 10 It is stopped. Throughout the process, all movements are controlled by a servo motor controlled drive system (5) and encoder. It is managed by feedback based on load presence, floor position, and transmission. Sensor groups, load presence, floor position, and transmission. By transmitting the completion information to the system controller, the automatic work cycle is 15. completes. In conclusion, this fixed-structure elevator system offers both vertical lifting and... An innovative transport system that performs horizontal transfer operations on a single unit. It offers a solution. Thus, the need for separate shuttle or mobile elevator is eliminated. 20 It is taking off; the system operates with less energy, in a shorter time, and with high safety. He is working. The invention concerns a stationary elevator with a chain conveyor and multi-axis movement capability. The system has an automated storage and dispatch infrastructure called ASRS (Automated Storage 25 It is located within the (Agricultural and Retrieval System) line. The system functions as vertical transfer stations located within a multi-story racking warehouse structure. It is being done. The two elevator units marked in red in the image are the main transport lines. The process involves moving pallets from lower to upper levels and transferring them to the racking system. 30 He / She is undertaking his / her duty. 12 The elevators are directly connected to the horizontal conveyor lines and the elevator interior conveyor-1- With 1 chain conveyor module, pallets are moved towards the production or shipping direction. It transfers. Each elevator operates at different levels of the 4-story racking system, serving different floor positions. It works in integration with its sensors. 5 Despite being fixed in position, they also enable horizontal transfer thanks to their internal conveyor modules. They carry it out within their own organizations. Thanks to this settlement; 10 Seamless and synchronized product flow is ensured throughout the entire warehouse line, The need for a mechanically moving shuttle is eliminated. Energy and space efficiency are achieved, The total transport capacity of the ASRS system is increased. In conclusion, the elevator system described in this invention enables the vertical and horizontal integration of the warehouse. It functions as a central transport unit providing and improving the efficiency of the ASRS line. It significantly increases it. 25

Claims

13 REQUESTS 1. The invention relates to multi-story buildings located in food, beverage, logistics, and industrial production facilities. Used in racking systems for lifting, transferring and handling pallets. a single system that handles all the processes of preparing for shipment, for all 5 Two different pieces of equipment (elevator +) perform both vertical and horizontal transfer. eliminating the need for a shuttle, saving cost, space and energy in the system. equipped with servo motors, encoders, sensor groups and safety circuit breakers. Its structure offers high precision, safety and synchronized operation, and it is stationary. mechanical 10 found in classical systems with multi-axis movement capability in this position located within the warehouse, eliminating the problems of complexity and maintenance difficulty. generating profit, enabling efficient placement of shelving systems, integrated sensors and safety mechanisms that enhance operational safety possesses, automated storage and dispatch systems (ASRS – Automated Storage and Retrieval System (SRS) used for transporting pallets between floors and racking 15 multi-axis motion capability It has a fixed elevator system with integrated chain conveyor;  A vertically mounted elevator that forms the main structure of the entire load-bearing system. elevator body supporting the cabin(1) 20  Enables pallets to be loaded into the elevator cabin and transferred to the target floor, The structural body of the chain conveyor module, right chain conveyor module. (right row)(32) and left chain conveyor module (left row)(33) chain modules Chain conveyor that carries and provides rigid connection to the elevator cabin. module(2) 25  Vertical lifting mechanism that moves the elevator cabin up and down(3)  ensures the linear and safe movement of the lifting mechanism of the elevator. Reduces friction during vertical cabin movement, provides alignment and stability. guide rail system(4)  High precision in lifting and horizontal movement of the chain conveyor module 30 servo motor that performs this function and provides speed and position feedback. controlled drive system(5) 14  A double drum structure that provides load transfer in the lifting system. Rope and drum assembly(6) which provides balancing and equal torque distribution  Locks the system in case of excessive speed, cable breakage, power failure or malfunction, Stopping, safe operation provided by brake and safety cut-off mechanism(7)  Enables the elevator cabin to be positioned towards the target floor, elevator 5 Automatic stop that detects the upper and lower limit positions of the cabin. position and level sensors(8)  Main load-bearing chassis providing structural strength and vibration reduction(9)  Enables the pallet to be loaded into and removed from the system via a conveyor. pallet entry-exit point(10) 10  withstands all mechanical forces supporting the rack, rail and coupling assemblies. and vertical support column (11) that provides linear alignment  ropes that perform the lifting and lowering operations of the elevator cabin reels(12)  Precise 15 that ensures linear and vibration-free transmission of vertical movement. Rack and pinion gear system with positioning contribution(13)  elevator cabin that secures the elevator cabin to the main body carrier connection plates(14)  Ensures the elevator is fixed to the ground and that vertical accuracy is maintained. mounting base (ground plate) (15) 20  The lower part that provides the connection between the elevator column and the ground, creating structural balance. connection base(16)  Column base connection plates which increase the stability of the bottom connection of the vertical column(17)  Column interconnection that increases rigidity and prevents torsion between load-bearing profiles llamas(18) 25  Column vertical bar reinforcement which increases mechanical strength along the column(19)  ensures that the vertically moving elevator cabin moves in a straight line. guide lamellae(20)  Counterweight that provides balance and linear motion in rope lifting systems rail connection group(21) 30  Internal slide that regulates the vertical sliding movement of the elevator cabin's support parts. car(22)  Counterweight that provides controlled movement of the balance mass along the rail sled group(23)  Rail locking plates that provide safety locking in the counterweight system(24)  servo motor controlled drive system(5) moves the movement into linear vertical movement Converting servo motor reducer (25) 5  Interconnecting components that support the overall stability of the structure(26)  bolts and fasteners, which are complementary elements of structural assembly elements(27)  Upper chain roller forming the upper guiding point of the chain conveyor idler shaft housing(28) 10  Upper fastening that provides mounting and axial stabilization of the chain roller. flange(29)  Top Allen bolts (30) that secure the top connection components  As shown in the top view in Figure 4, the direction of material movement is to the right. located on the side, providing a driven flow from the right side of the pallet, 15 Right chain conveyor module (right row) that performs transfer at input / output (32)  As shown in the top view in Figure 4, the direction of material movement is to the left. located on the side, providing synchronous flow from the left side of the pallet, Left chain conveyor module 20 contributing to centering and balanced transfer. (left row) (33)  right chain conveyor module (right row)(32) and left chain conveyor module (left (33) servo-controlled speed / position that transmits torque to chain modules. Drive shaft (chain side) (34) working with synchronization  Chain 25, which is the point where the chains change direction and maintains tension and alignment. return pulleys (front / rear) (36)  Side track that limits the left / right oscillation of the track and ensures centering during transfer. guide / centering blocks(37)  Synchronizes two chain lines, providing uniform speed distribution on a single axis. drive shaft and coupling assembly(38) 30  lower chassis connection plates(39) which provide rigid and adjustable mounting to the elevator cabin  A limit that defines the forward / reverse stroke limit of the track, preventing overdrive. pin / stop element(40) 16  Low friction operation of chain rollers and measured line gauge chain rails (carrier slide surfaces) (41)  Sensor placement surfaces which are mounting surfaces for pallet presence / position sensors shoes(42)  Chain lines that ensure operator safety and prevent particle entry 5 closing protective side covers(43) It includes.

2. The invention is a conveyor-integrated stationary elevator system that conforms to claim 1, Feature; servo motor controlled drive system (5) movement linear vertical 10 at least one servo motor reducer (25) that converts motion and horizontal transmission It includes.

3. The invention is a conveyor-integrated stationary elevator system that conforms to claim 1, Its feature is that the chain conveyor module (2) is on the right according to the direction of material movement. right chain conveyor module (right row) (32) located on the side, left side 15 positioned left chain conveyor module (left row) (33), moment to these modules The drive shaft (chain side) (34), where the chains change direction, chain rotation drive shaft and coupling assembly that synchronizes the pulleys (36) and two chain lines (38) is included.

4. The invention is a fixed elevator system with conveyor integration, conforming to claim 1, and 20 Its feature is the upper chain pulley idler shaft that forms the upper steering point. the housing (28), the upper fixing flange (29) which provides axial stabilization and these It includes top hex bolts (30) that secure it.

5. The invention is a conveyor-integrated stationary elevator system that conforms to claim 1, Feature; side guide / centering blocks that limit the left / right oscillation of the track 25 (37), limit pin / stop element (40) which determines the forward / backward stroke limit of the pallet and Chain rails (carriers) that enable chain rollers to operate with low friction. (41) includes sliding surfaces.

6. The invention is a conveyor-integrated stationary elevator system that conforms to claim 1, Its feature is the bottom connection 30 which increases the bottom connection stability of the vertical support column (11). base (16), column base connection plates (17), column intermediate connection that increases rigidity vertical slab reinforcement (18) and column slab reinforcement (19) which increases mechanical strength It includes. 17 7. The invention is a conveyor-integrated stationary elevator system that conforms to claim 1, Its feature is that it provides balance and linear motion in rope lifting systems. Weight rail connection group (21), vertical sliding movement of elevator cabin regulating the inner sled car (22), the counter that enables the movement of the balance mass. Weight slide group (23) and rail locking plates providing safety locking 5 (24) is included.

8. The invention is a conveyor-integrated stationary elevator system that conforms to claim 1, Its feature is the sensor which has mounting surfaces for pallet presence and position sensors. Protective side covers (43) that close the chain lines with the settlement shoes (42) It includes. 10 20 30

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