STEERING COLUMN

Abstract

The steering column comprises a housing consisting of three telescopically mounted segments; this includes an outer segment (1) of square-section hollow tube in which an intermediate segment (2) of square-section hollow tube slides, and a solid segment (3) of square-section hollow tube sliding inside this intermediate segment (2). A sealing cap (4) is positioned between the upper ends of these segments (1) and (2). The solid square-section segment (3) is fitted with a cylindrical end (5) with an internal connection thread at one end, and the outer segment (1) of square-section hollow tube is similarly fitted with another cylindrical end (6) with an external connection thread at the opposite end. Each of these ends (5) and (6) is fitted with a standard universal joint (J); on this structure, course limiters (11) and clearance balancers (12) are mounted.

Description

1 TARIFF STEERING COLUMN Technical Area This utility model relates to the automotive industry and was issued on 30 / 08 / 2022 with the registration number BR202020217343. The utility model application submitted with number 5 includes three telescopic 5 It relates to the steering column, which consists of segments. State of the Art The subject of application BR202020217343 is the significant number of telescopic columns in vehicles in general. This reveals the fact that it exists; however, cargo vehicles or large When it comes to vehicles, the steering column must exhibit certain characteristics, 10 However, it appears that this does not happen in known solutions; because generally each tool There is a separate model for this type, which results in numerous column variations. This leads to the emergence of a significant automotive supplier sector. It appears that they are forced to maintain a large amount of stock; whereas a more compact, working with a self-adjustable stroke and significantly larger, also 15 The preference is for a model that can serve a wide range of vehicle models. is being done. The existing models are suitable and have their own advantages. There is no doubt whatsoever; however, in most cases, the models in question It appears to have a "working stroke" limit and is not compact; this 20 This situation often leads to each model being limited to a specific vehicle group. and in some cases, may only be available for a specific vehicle. It is understood that, accordingly, conventional models only include a significant number of components. not only because of what they contain, but also because they have high production costs. This also creates various disadvantages; in addition to all this, production and distribution 25 These processes also present additional disadvantages from a logistical standpoint. Accordingly, BR202022017343 is a three-segment telescopically assembled unit. This has introduced several changes to the steering column configuration; All segments have a square cross-section and consist of an inner segment, an outer segment, and an intermediate segment. It consists of; the inner segment is made of solid material, and the other two segments are square-sectioned with an inner core of 30 They are hollow tube structures; all of them initially significantly exceed the "working stroke" limit of the column. 2 It includes details that provide functions and tools aimed at increasing this to a significant extent, and this increase This is approximately 50% compared to conventional models; however, the system When folded, it exhibits a significantly more compact structure, and the total It shrinks to approximately one-third of its length. The versatility provided by having a larger “working stroke” is another advantage. 5 This is because this situation is limited to a specific group of vehicles of the same model. creating the conditions that prevent it from remaining; because the condition of "longer working stroke" the system can adjust itself automatically and is compatible with a much wider range of vehicle models. It makes it possible to use it. On the other hand, the steering column in question has a significantly reduced number of components. It includes [the following]; consequently, it also reduces production costs and noise generation. It prevents. Another noteworthy point is that the steering column in question has been completely reassembled. In this state, it acquires a very compact structure; this makes it suitable for industrial and commercial use. It provides convenience in various parts of the sector; in other words, less storage 15 occupying space, facilitating transportation, and reducing the use of packaging materials. These factors are extremely advantageous in terms of both production and commercial logistics. Another advantage of this steering column is that it incorporates play stabilizers within its structure. It includes telescopically mounted parts that are precisely self-assembled. It allows for adjustment, reduces friction, and eliminates noise. 20 By lifting it, it significantly improves the sliding movement of telescopic parts. In this way, BR202022017343 introduces the following innovations and functional improvements. It has been understood that it offers: three telescopic segments; and end-of-stroke locking pins. It includes a system consisting of and defined by space compensators in the form of leaf springs. It includes an interior noise reduction system, which makes it suitable for use in a significant number of vehicles. A compact system is obtained that recognizes [the problem]. BR202022017343 introduced significant innovations in the manufacturing of steering columns. There is no doubt about this; however, subsequent studies and In tests, internal noise was identified by space compensators in the form of leaf-shaped springs. the preventive system only further reduces friction between telescopic segments 30 3 not only for that purpose, but also to eliminate noise almost completely. It has been determined that it can be significantly improved. Purpose of the Invention The previous model consisted of three telescopic segments, one fixed and two movable. The steering column is configured; each of these movable segments has at least one 5 The leaf contains springs, and these springs are held under a certain expansion pressure. In this way, it compensates for the gaps, and also reduces friction between the parts. It reduces noise; however, it comes at a higher cost, according to tests conducted. It has been observed that the springs or this system can be eliminated. Therefore, the springs used in these flexible (moving) parts have been completely eliminated and 10 Instead, a static system that performs the function of shear and gap elimination. It has been improved. Instead of the springs in question, the inner ends of each of the two movable parts, along with their entire outer circumferences, are used. They are arranged to include short depression zones along their length, each of which is heated by the part. and a polymer layer obtained by "dipping into polyamide powder" is completely 15 It is coated; thus, a contact layer with a thickness of between 2 and 6 mm is formed. The function of this layer is to eliminate gaps and noise, thereby preventing the springs in question from escaping. By replacing it, it has provided various advantages, primarily cost reduction. Figures that will help understand the invention. To better understand the current utility model, a detailed explanation is provided below. This is being done and reference is made to the attached drawings. Figure 1. The fully assembled steering column, which is the subject of this invention. It shows the perspective view. Figure 2. The fully assembled steering column, which is the subject of the invention. It shows a perspective view from a different angle than in 1. 25 Figure 3. Exploded image highlighting two details of the steering column, which is the subject of the invention. It shows the perspective view. Figure 4. Enlarged view of the disassembled steering column, which is the subject of this invention. It shows the perspective view. 4 Figure 5. Perspective view of the assembled steering column, which is the subject of the invention. It shows the appearance, a partial cross-section, and the blasted view of that cross-section. Figure 6. Side view of the steering column, which is the subject of the invention, and this section. It shows a magnified detail of the item, limiting its telescopic movement. It shows the appearance of some of the stopper parts. 5 Figure 7. Cross-sectional view of the steering column, which is the subject of the invention, from another angle. It shows a magnified detail, while other limitations restrict telescopic movement. It shows the appearance of the stopper parts. Figure 8. Side view of the steering column, which is the subject of the invention, and two It shows magnified detail, while the other 10 limit telescopic movement. It shows the appearance of the parts. Figure 9. Side view of the steering column, which is the subject of the invention, and two It shows magnified detail and the appearance of gap-filling elements. It shows. Figure 10 shows an enlarged view of the detail mentioned in Figure 9, with a gap of 15. The eliminating element is highlighted in the appearance. Figure 11 shows an enlarged view of another detail mentioned in Figure 9. It shows the appearance of the gap-filling element. These drawings and their details, more specifically Figures 1 through 3, are as follows: 20 The STEERING COLUMN includes the following: - It is a body consisting of three telescopically mounted segments, which are attached to the vehicle. After being assembled, the fixed square section hollow pipe outer segment (1), inside of it Square section hollow tube intermediate segment (2) which provides sliding movement and inside it It contains a solid segment of square cross-section (3) that moves by sliding; 25 - A sealing cap (4) with the upper end of the square section hollow pipe outer segment (1) and the square The hollow pipe section is positioned between the upper end of the intermediate segment (2), and also The title (4) is fixed to the upper end of the square section hollow tube outer segment (1). Thus, a sliding seal for square section hollow pipe intermediate segment (2) It serves as a point; 30 - Solid segment (3) with a square cross-section cylindrical end (5) with an internal connection thread at one end. equipped with a square section hollow pipe outer segment (1) on the opposite side similarly The other external connection is fitted with a cylindrical end (6) with a threaded end; the internal connection in question The toothed cylindrical end (5) and the external connecting toothed cylindrical end (6) are fixed by welding. The first of these is the square section solid segment (3) blind cylindrical receiver (8) and 5 This receiver (8) includes the internal connection threaded cylindrical end socket (7) into which it enters, other The external connection threaded cylindrical end (6) is an intermediate flange (9) and the square section hollow pipe outer It contains a cylindrical body (10) placed inside the lower end of the segment (1); this At this point, complete closure is achieved at the lower end of the system with a suitable welding process. This situation is due to the square section hollow pipe intermediate segment (2) and the square section solid 10 The telescopic movement of the segment (3) is only possible with the external connecting gear cylindrical It allows the event to occur in the opposite direction of the end (6); - A standard universal joint (J) is attached to the externally threaded cylindrical end (6). and the connection of the joint (J) on the internal connecting threaded cylindrical end (5) there are; 15 - Limiters (11) respectively, the square cross-section hollow pipe intermediate segment (2) and the square cross-section mounted near the lower ends of the solid segment (3), each limiting the stroke of the telescopic segment and at the maximum extension position This prevents the segments (2),(3) from coming out completely. - Gap balancers (12), square section hollow pipe intermediate segment (2) and square section 20 mounted on the inner or lower ends of the solid segment (3), Balancers (12) provide fine adjustment possibilities for eliminating gaps. In addition to providing these features, they also function as a noise-reducing element and are telescopic. It also serves as a tool to facilitate the sliding of segments (2), (3); As stated above, the inner connection threaded cylindrical end (5) and the outer connection threaded cylindrical 25 (6) are the parts corresponding to the steering system of a vehicle, in particular Universal connection that allows the steering wheel and steering box to be attached. Joints (J) can be accepted; these parts are, depending on the vehicle model, directly by using a standard universal joint (J) at one or both ends of the system It can be connected; in addition, one of the intermediate or universal joints (J) is 30 Other standard components that can replace it can also be included; thus, the steering wheel The column assembly is nearing completion and the driver is applying pressure on the steering wheel. a mechanism that transmits the movements to the steering mechanism (steering box) 6 This ensures that each vehicle receives guidance tailored to its technical specifications. This capability is provided. As previously stated, a standard universal joint (J) has an external connecting threaded cylindrical joint. The end (6) is connected to the external connecting threaded cylindrical end (5) of the said joint. It is also possible to foresee this; and in the latter case, in Figure 4, 5 As shown, the standard universal joint (J) and square section solid segment in question The fixation between (3) is done with a transversely positioned elastic pin (13). This can be achieved; for this purpose, the base of the standard universal joint (J) is a joint. It contains an opening (14) and a transverse joint connection hole (15), and this hole (15) has a square cross-section. 10 made parallel and the elastic pin (13) passes through these holes, making two pieces It provides stability between them. List of Names and Serial Numbers of the Parts Expressing the Invention: 1 Square section hollow tube outer segment 2 Square section hollow pipe intermediate segment 15 3 Square section solid segments 4 Sealing caps Internal connection threaded cylindrical end 6 External connection threaded cylindrical end 7 Internal connection threaded cylindrical end socket 20 8 Blind cylindrical receivers 9 Intermediate flanges Cylindrical body 11 Limiting 12 Gap balancer 25 13 Elastic pins 14 Articulation points Joint connection hole 7 16 Square section solid segment connection holes 17 Sealing cap body 18 First sealing lip 19 Second sealing lip Fixing cord 5 21 Environmental channels 22 Wedge-shaped protrusions 23 Ramp surface 24 Transverse locking elements Locking pin 10 26 Large diameter pin sections 27 Small diameter pin section 28 Helical springs 29 Passage holes 29 A Interior passageway 15 29 B Intermediate section passage hole Neighborhood 31 Polymer coating J Universal joint The structure and working system of the invention are as follows: 20 The sealing head (4) is shown in detail in Figure 5, from where the aforementioned The sealing cap (4) is made of rubber and has a hollow structure in the longitudinal direction. It is understood that the body (17) is formed with and has a square cross-section; the said sealing The head (4) has a tip in the shape of a tapered or truncated pyramid, and this tip has a square cross-section inside. The hollow pipe intermediate segment (2) has 25 flexes around the outer surfaces and slides into contact. It forms the first sealing lip (18). 8 The body (17) of the sealing cap (4) is located near the base of the tapered end and inside. The area contains a second sealing lip (19); said sealing lip (19), The sealing cap surrounds the entire inner part of the body (17) and is inward. It has a generally triangular cross-sectional structure with a sharply oriented edge. Square The sectional hollow pipe acts against the outer surfaces of the intermediate segment (2). The aforementioned 5 fixing of the sealing cap (4) and also the inner sealing cap body (17) a cord-like projection emerging from it and positioned quite close to its lower end It is completed with (20). The fixing cord (20) is continuous or incremental. can be and on the outside of the corresponding end of the square section hollow pipe outer segment (1) It is arranged in a way that will fit into an environmental channel (21) that has been created. 10 Thus, the fixing of the sealing cap (4) is completed, and this cap (4), square section hollow pipe intermediate segment (2) and square section hollow pipe outer segment (1) It also offers possibilities for ensuring the airtightness of the gaps that form between them. The system typically contains an appropriate amount of lubricant internally. Relating to Figure 6, each course limiter (11) initially has a wedge-shaped groove with 15 It was formed and this structure consists of a course wedge-shaped projection (22) and the preceding one This wedge-shaped ramp forms a guiding surface (23). protrusions (22) and their associated guiding ramp surfaces (23), square section hollow pipe exterior on the inner surfaces and upper ends of the segment (1) and the square section hollow pipe intermediate segment (2) They are located in nearby regions. These wedge-shaped protrusions (22) and 20 together with their guidance surface ramps (23), transverse locking elements (24) He is working. As shown in Figures 7 and 8, the transverse locking elements (24) are detailed. It has been shown that each transverse locking element (24) is equal and symmetrical in the axial direction. It appears to contain two locking pins (25) positioned in the figure. 25 In addition, each of the said locking pins (25) has two different diameters; large The diameter pin section (26) is outward and the small diameter pin section (27) is inward. It is understood that it is directed. Between the small diameter pin sections (27) there is a helical spring. (28) are positioned and the ends of the helical spring (28) are the corresponding small diameter pin sections (27) It is held by. 30 9 Thanks to this arrangement, the helical spring (28) continuously pushes the locking pins (25) outwards. holding in the pressed position and pins (25) with square section solid segment (3) respectively through holes (29A) and (29B) located on the square section hollow pipe intermediate segment (2) This helps keep it inside. Thus, the large diameter of the locking pins (25) pin sections (26) respectively square section hollow pipe intermediate segment (2) and square section hollow 5 The pipe will apply sliding pressure against the inner surfaces of the outer segment (1) It is located. At the same time, the large diameter pin sections (26) are the relevant course limiting wedges. It works by aligning with the protrusions (22) in the shape of the segments (2),(3) It performs the final stop function when fully extended. Thus, 10 After the segments (1),(2),(3) are mounted on the vehicle, the telescopic movement square section hollow pipe outer segment (1) that does not perform safe to come out completely outside This is being prevented. Figures 9 to 11 illustrate the gap stabilizers (12) in detail, each of which the gap balancer (12), the square section hollow pipe intermediate segment (2) and the square 15 Starting from the lower end regions of the solid segment (3) with cross-section, to the relevant transverse locking element (24) formed by an environmental settlement (30) that extends to a nearby point. It is seen that each of the settlement nests (30) has an outer dimension of the corresponding square cross-section inside. The empty pipe is larger than the outer dimensions of the intermediate segment (2) and the solid segment (3) of the square cross-section. It is coated with a polymer coating (31) structured in such a way as to be 20 The polymer coating (31) serves to balance the gap between the relevant segments (2),(3), more stable orientation of segments (1),(2),(3) during telescopic movement It contributes to and also reduces contact-induced vibration, friction, and mechanical clearance. It helps to reduce its formation. Polymer coating (31), square section hollow pipe intermediate segment (2) and square section solid 25 heating of the relevant end regions of the segment (3) and then immersion in polyamide powder It is applied using a known coating method carried out in this way, and this process As a result, a contact layer with a thickness of between 2 mm and 6 mm is obtained. Accordingly, the polymer coating layers in question (31) are square section hollow tube intermediate segments. (2) forms the contact and sliding surfaces for the square cross-section solid segment (3), and these 30 The plates help reduce friction between parts that perform telescopic movement and It helps to eliminate noise that may occur during the work. Another In other words, the square cross-section hollow pipe intermediate segment (2) and the square cross-section solid segment (3), square The hollow pipe section moves telescopically inwards or outwards within the outer segment (1). while being carried out, these movements are done in a softer, more controlled and silent manner. is being carried out. When the segments (2),(3) are moved outwards, the limit of movement is the transverse locking 5 The locking elements (24) and their locking pins (25) are determined by the locking elements (24) and their locking pins (25). The pins (25) pass into the relevant course limiting wedge-shaped projections (22). It is located in this position. This situation determines the maximum elongation position of the system's telescopic movement. forming and segments (2),(3) square section hollow pipe outside segment (1) It prevents it from escaping uncontrollably. 10 In this position, the telescopic movement aimed at reducing the length of the system is reversed. is taking place; in other words, the solid segment (3) with a square cross-section is moving inwards. During this movement, the locking pins (25) guide ramp surfaces (23) The course is easily separated from the limiting wedge-shaped protrusions (22) related to its effect and It continues its movement. The movement of the solid segment with square cross-section (3) is square 15 of its inner end. second transverse locking element (24) located on the intermediate segment (2) of the hollow pipe section It continues until contact occurs, and once that contact takes place, the square The hollow pipe intermediate segment (2) also moves inwards in the same direction. It starts. Thus, all segments (1), (2),(3) are retracted telescopically together. and the system reaches a fully assembled state. 20

Claims

11 REQUESTS 1. The steering column consists of three telescopically mounted segments. It encompasses the body and, once mounted on the vehicle, moves telescopically. an outer segment of a square cross-section hollow pipe (1) that does not perform, inside of it a square cross-section hollow pipe intermediate segment (2) that moves by sliding and inside it 5 a solid segment of square cross-section that moves by sliding (3); a hollow pipe outside of a square cross-section between the upper end of segment (1) and the upper end of the square section hollow pipe intermediate segment (2) positioned and also fixed to the upper end of the external segment (1) in question and a seal that constitutes a sliding seal point for the intermediate segment (2). its head (4); an internal connecting threaded cylindrical 10 located at one end of the inner solid segment (3). end (5) and the other located on the square section hollow pipe outer segment (1) on the opposite side an external connection threaded cylindrical end (6), welded to both ends (5) and (6) in question. fixed by means of the first of which is the square section solid segment (3) an internal connection threaded cylindrical end socket (7) accepting a blind cylindrical receiver (8) It includes and other external connection threaded cylindrical end (6) with an intermediate flange (9) and square section 15 a cylindrical body (10) placed inside the lower end of the hollow tube outer segment (1) including; externally connected to the threaded cylindrical end (6) and optional as a universal joint which can also be foreseen on the internally connected threaded cylindrical end (5) (J); respectively, square section hollow pipe intermediate segment (2) and square section solid Course limiters (11) mounted near the lower ends of the segment (3); 20 However, its feature is the square section hollow pipe intermediate segment (2) and the square section Gap stabilizers (12) mounted on the inner or lower ends of the solid segment (3) and includes the void balancers (12), square section hollow tube starting from the lower ends of the intermediate segment (2) and the solid segment with square cross-section (3) circumferential 25 extending to a point close to the corresponding transverse locking element (24) to be formed with a settlement (30) and each environmental settlement its housing (30), outer dimensions of the square cross-section hollow pipe intermediate segment (2) and the square cross-section inner that the filled segment (3) is covered with a polymer coating (31) that exceeds the outer dimension of the (3) segment; the polymer coating in question (31), the square section hollow tube intermediate segment (2) and Heating of the corresponding ends of the solid segment (3) of the square cross-section and their 30 It is applied by dipping it into polyamide powder, thus achieving a thickness of 2 It is characterized by involving the creation of a contact layer between 6 mm and 6 mm. It is done.

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