Handrail sliding apparatus

Abstract

The handrail sliding device of the present invention has a structure in which a rail is fixed to a rail supporter installed at the top of a vertical pipe, and a slider slides along the rail. The rail is integrally equipped with a seating portion that rests on the rail supporter, which is a sliding tube portion having a sliding surface with a triangular cross-section. The slider supports the sliding surface of the rail at three points using triangularly arranged rollers, enabling stable sliding even in curved sections. A connecting rod and / or a connecting bar is inserted inside the rail to firmly connect it to an adjacent rail, and assembly is simplified as rail fixing and connection can be performed simultaneously with a single fastening means. Furthermore, by selectively providing an opening, a seating step, or reinforcing ribs inside the rail on the seating portion of the rail, both fastening convenience and structural rigidity can be secured.

Description

Technology Field

[0001] The present invention relates to a handrail sliding device, and more specifically, to a handrail sliding device comprising a slider that slides along a rail installed by the intervention of a rail supporter on the upper end of a vertical pipe, wherein the rail supporter is integrally formed with a rail coupling part protruding guide steps on both sides in the longitudinal direction of the upper surface of a support coupling part fixedly coupled to the upper end of the vertical pipe; and the rail is configured to have a sliding tube part having an inverted triangular sliding surface formed on its outer circumference so that a roller of a slider, which is equipped with an inverted triangular roller member in a sliding hole connected to a 'C'-shaped downward open end, slides along the longitudinal direction, and a seating part having a apex portion of the sliding tube part protruding downward and seated on the upper surface of the rail coupling part by the guide steps, thereby stably slidingly supporting a roller formed in a triangular shape through three sliding surfaces to improve the driving stability of the slider and simultaneously prevent the slider from rotating in the circumferential direction of the rail. Background Technology

[0003] In high-altitude work environments such as construction sites, handrail sliding devices are used to ensure worker safety. For example, Registered Patent No. 10-2746645, proposed by the present inventor, describes a sliding device in which rail supports are attached to the tops of multiple vertical pipes, and a slider moves along a continuous rail supported by these rail supports. The slider according to the said patent consists of a cast body with an embedded roller and is configured to move by sliding contact with the inside of a 'C'-shaped rail using the roller. Through this, a worker can attach a safety line to the slider and perform work while moving along the rail.

[0004] However, the aforementioned conventional technology has several problems. First, it is pointed out that it is difficult to completely prevent the slider from rotating while moving along the rail. Although some configurations were proposed in the conventional technology to prevent the slider from rotating, the possibility remained that the slider might twist in the circumferential direction of the rail due to a structure in which only the upper part of the rail, which has a circular outer surface with a small contact area between the rail and the slider, is made flat and supported by this flat sliding surface as the main support point. In particular, there was a concern that the slider might deviate from the rail or move erratically due to a lack of driving stability in curved sections or direction change points. This is because it is difficult to maintain the balance of the slider in curved rail sections, and the conventional support structure using a single sliding surface could not provide stable three-point support.

[0005] In addition, the inconvenience of assembly and installation is also pointed out as a problem with the conventional technology. The rail according to Registered Patent No. 10-2746645 is fixed sequentially to multiple vertical pipes; however, after mounting individual rail supports to the vertical pipes, bolts had to be fastened by aligning the rails one by one to each rail support. In this method, since long rails must be aligned and fixed to multiple pillars simultaneously, the work is cumbersome and time-consuming. In particular, since there is no separate improvement in the structure of the rail connection part (the joint between rails), the rails may be connected by direct butt joints or require the use of methods such as welding. While this conventional structure can be maintained relatively firmly in straight sections, in curved sections or on irregular installation surfaces, slight misalignment occurs due to the lack of rigidity in the rail connection part, and there was a possibility of impact or vibration when the slider passed. In summary, the conventional technology (e.g., Registered Patent No. 10-2746645) had room for improvement in terms of preventing slider rotation, driving stability in curved sections, and convenience of the rail connection structure. Prior art literature

[0007] Korean Registered Patent No. 10-2746645 (Registered Dec. 20, 2024) Korean Registered Patent No. 10-2608611 (Registered Nov. 28, 2023) Korean Registered Patent No. 10-1208817 (Registered Nov. 29, 2012) Korean Registered Patent No. 10-2055377 (Registered Dec. 06, 2019) Korean Registered Patent No. 10-2450385 (Registered Sep. 28, 2022) Korean Published Patent No. 10-2023-0033308 (Published Mar. 08, 2023) The problem to be solved

[0008] The objective of the present invention is to provide a handrail sliding device that enriches technical diversity by adopting the most effective method while proposing a configuration that is more economical, simple, and concise, and differs from the configuration of the prior art, taking into account the advantages, disadvantages, and problems of the aforementioned conventional methods and prior art.

[0009] The objective of the present invention is to allow the slider to slide freely while moving along the rail, while preventing the slider body from rotating around the rail, thereby maintaining a constant posture in any direction.

[0010] The objective of the present invention is to secure a stable contact support structure between the slider and the rail so that the slider can proceed smoothly without derailing or shaking, even in curved sections or direction change sections of the rail.

[0011] The objective of the present invention is to provide a structure capable of quickly and securely connecting rails, thereby enabling easy assembly and installation even when long rail sections are composed of multiple segments. In particular, the invention aims to simplify the assembly process by implementing a structure that allows a rail to be fixed to a supporter and simultaneously connected to an adjacent rail using a single fastening means.

[0012] The main objective of the present invention is to simultaneously improve the safety and construction convenience of a sliding device for high-altitude work through the above-mentioned tasks. means of solving the problem

[0014] The handrail sliding device of the present invention comprises a slider that slides along a rail installed on the upper end of a vertical pipe by means of a rail supporter, wherein the rail supporter is integrally formed with a rail coupling part protruding guide steps on both sides in the longitudinal direction of the upper surface of a support coupling part fixedly coupled to the upper end of the vertical pipe; and the rail comprises a sliding tube part having an inverted triangular sliding surface formed on its outer circumference so that a roller of a slider, which is equipped with an inverted triangular roller member in a sliding hole connected to a 'C'-shaped downward open end, slides along the longitudinal direction, and a seating part having a apex portion of the sliding tube part protruding downward and seated on the upper surface of the rail coupling part by the guide steps.

[0015] Preferably, a rail supporter that supports a continuous rail by being coupled to the upper end of each of a plurality of vertical pipes has a rail coupling part integrally formed at the upper end of a support coupling part fixedly coupled to the upper end of the vertical pipe, and the rail is fixedly coupled to the vertical pipe using a rail fastening means that is fastened to a rail fastening hole formed through the rail coupling part in a vertical direction.

[0016] Preferably, the rail can be extended by combining different rails on both sides in the longitudinal direction, and a connecting rod is inserted and coupled into the sliding hollow of the sliding pipe portion formed as a hollow pipe, and this connecting rod is fastened to the rail fastening means.

[0017] Preferably, the rail can be extended by combining different rails on both sides in the longitudinal direction, and a connecting bar is inserted and coupled into the seating hollow of the seating portion formed by a hollow pipe, and the connecting bar is fastened to the rail fastening means.

[0018] Preferably, the mounting portion of the rail is provided with an opening formed along the longitudinal direction such that the mounting hollow is connected to the outside, and mounting steps on both sides of the opening, so that a rail fastening means is fastened to a connecting bar inserted and supported on the mounting steps through the opening without interference.

[0019] Preferably, the rail is further provided with reinforcing ribs that divide the seating portion and the sliding tube portion along the longitudinal direction. Effects of the invention

[0021] The handrail sliding device of the present invention, having the above-described configuration, has the advantage of allowing the slider to slide stably without tilting or shaking when moving along the rail by forming the cross-section of the rail into a triangular sliding surface and configuring the roller member of the slider in a three-point support manner. In particular, the slider is prevented from rotating around the rail arbitrarily, allowing it to move smoothly while maintaining a constant posture even in curved sections or direction changes. This means that the worker's weight is evenly distributed without leaning to one side during movement, thereby reducing the risk of falling and improving driving stability.

[0022] The rail of the present invention has the advantage of having a triangular sliding surface, allowing it to accommodate installation in curved directions in either horizontal or vertical directions. Since the roller member of the slider adheres to the triangular sliding surface of the rail and moves in rolling motion, it maintains uniform contact and friction even in curved rail sections. Therefore, even when installed along a curved handrail, the slider moves smoothly without interruption, and the worker can enjoy consistent fall prevention through the safety line regardless of their position.

[0023] Due to the guide step structure of the rail supporter of the present invention and the shape of the rail seating portion, there is an advantage that the rail is automatically aligned and its position is fixed when placed on a vertical pipe. Installation is simple because the worker only needs to place the rail along the guide step without any separate positioning work. In addition, it is designed so that the rail is fixed to the vertical pipe and simultaneously connected to an adjacent rail using only a single fastening means, namely a bolt fastening through the rail fastening hole. Accordingly, the number of parts and assembly processes are reduced, and construction time is shortened. For example, in the past, it may have been necessary to mount a separate splice member or fasten additional bolts at each rail connection point, but in the present invention, a single fastening bolt of the rail supporter performs this function, thereby achieving an effect close to a one-touch connection.

[0024] The present invention has the advantage that the optionally provided components, such as connecting rods, connecting bars, and reinforcing ribs, can significantly improve the strength of the rail connection section. When connecting rods are used, linear alignment and tensile strength are secured at the top of the rail, while when connecting bars are used, shear strength and torsional rigidity are provided at the bottom of the rail. When both are used, connection is achieved on both the upper and lower sides, maximizing the rigidity and stability of the rail connection section. In particular, the configuration of connecting bars, cutouts, and seating steps enables bolt fastening without failure or slippage, thereby increasing connection reliability. Furthermore, since the reinforcing ribs increase the rigidity of the rail itself, they help long rails or load-bearing rails maintain their solidity without sagging. Consequently, the sliding device of the present invention can enhance reliability by ensuring structural durability and stability even during long-term use.

[0025] Due to the structural improvements described above, workers at actual high-altitude work sites can move more freely while attached to safety lines, and work efficiency is enhanced as the safety device smoothly follows the work path even if it is curved or contains obstacles. Furthermore, the reduction in parts and processes during installation alleviates the burden on installers and minimizes the possibility of errors. These combined effects ultimately provide significant benefits, such as the prevention of fall accidents and increased process efficiency at the work site. Brief explanation of the drawing

[0027] FIG. 1 is a planar perspective view showing the configuration concept of the handrail sliding device of the present invention. FIG. 2 is a bottom perspective view and an enlarged view of the main parts of FIG. 1. FIG. 3 is a longitudinal cross-sectional view of the rail supporter of the present invention. FIG. 4 is a combined configuration diagram conceptually showing the configuration of the handrail sliding device of the present invention using a unidirectional cross-sectional view perpendicular to the longitudinal direction of the rail supporter of the present invention. FIG. 5 is a bottom perspective view of the slider of the present invention. FIG. 6 is a conceptual cross-sectional view of a state in which a slider is mounted on a rail of the present invention. Specific details for implementing the invention

[0028] The present invention will be described in detail below using the attached drawings. However, since the attached drawings represent preferred embodiments of the present invention, the scope of the present invention is not limited by these drawings. Furthermore, even if a configuration is essential for implementing the present invention, specific descriptions of configurations that fall under known technology or that a person skilled in the art can easily implement from known technology are omitted.

[0030] FIG. 1 is a perspective view showing the overall configuration of the handrail sliding device of the present invention, and FIG. 2 is a bottom perspective view and an enlarged view of the main parts of FIG. 1. Referring to FIG. 1 and FIG. 2, the handrail sliding device of the present invention is applied to a structure in which a plurality of vertical pipes (100) are erected at regular intervals. A rail supporter (200) is mounted on the top of each vertical pipe (100), and a rail (300) supported by the rail supporter (200) is arranged extending in a horizontal direction. The slider (400) can freely slide (reciprocate) along the length of the rail while hanging on the rail (300), and the worker can ensure safety from the risk of falling while moving along the rail by wearing a safety line (500) connected to the slider (400) around their waist. In the embodiment illustrated in the drawing, the rail (300) is formed continuously, including a curved section, and the slider (400) is configured to move smoothly along the rail even in the curved section.

[0032] The rail supporter (200) of the present invention comprises a support coupling part (210) fixedly coupled to the upper end of a vertical pipe (100) and a rail coupling part (220) formed on the upper end to support a rail (300).

[0033] The above-mentioned support connecting part (210) is cylindrical and secures the upper end of the vertical pipe (100) by fitting or bolting, etc., and has a support hollow (211) formed inside and a support connecting hole (212) provided on the side so as to be connected to the vertical pipe (100) by a support connecting means (213) such as a bolt.

[0034] The rail coupling portion (220) is formed in a plate shape and extends integrally from the upper end of the support coupling portion (210), and guide steps (221) are formed along both edges of the upper surface. These guide steps (221) serve to hold the seating portion (320), which is the bottom part of the rail (300), from both sides, thereby guiding the rail (300) to be seated in an accurate position. Here, the guide steps (221) are preferably formed in a protruding shape as shown in FIGS. 2 and 4 to guide the seating coupling of the seating portion (320), but they may also be formed in a groove shape rather than a protruding shape, in which case the seating portion (320) may also be formed to correspond to the groove-shaped guide steps (221). Additionally, the rail coupling portion (220) is provided with a rail fastening hole (222) that penetrates in a vertical direction, into which a rail fastening means (225), such as a bolt, can be inserted to fix the rail (300).

[0035] FIG. 3 shows the internal cross-sectional structure of such a rail supporter (200), and an extension coupling section (224) that comes into contact when extending and installing a rail can be formed at both ends of the rail coupling section (220) as needed (in this embodiment, 224 refers to the protrusions at both ends of the upper surface of the rail coupling section (220)). A hollow closing section (223) for structural reinforcement is formed in the central part of the rail coupling section (220) to increase the rigidity around the rail fastening hole (222).

[0037] Meanwhile, the rail (300) of the present invention may be formed of a plurality of rail members connected to each other in the longitudinal direction, and each rail member has a double structure of a sliding tube portion (310) and a seating portion (320).

[0038] The above-mentioned sliding tube section (310) is a part provided for the slider (400) to slide, and is formed in the shape of a cylinder or a polygonal tube, with an inverted triangle-shaped sliding surface (311) formed on the outer circumference surface. The three sliding surfaces (311) formed in this way are three flat surfaces that extend straight in the longitudinal direction of the rail (300). These three sliding surfaces (311) come together to form a triangle on the outer circumference cross-section of the rail (300), and each sliding surface (311) is preferably arranged in the configuration of an equilateral triangle or an isosceles triangle with the upper surface of the rail (300) as the base. These sliding surfaces (311) are surfaces that the roller (431) of the slider (400) will make rolling contact with, and are finished smoothly to account for friction and wear resistance. In this embodiment, the sliding surfaces (311) are formed in a smooth curved shape, but this configuration is intended to secure a sufficient area of ​​the sliding surfaces (311) that the slider's roller (431) contacts, while simultaneously reducing the surface area of ​​the rail (300) to reduce volume and achieve weight reduction. As can be seen in FIGS. 1 and 2, three sliding surfaces (311) are arranged across the upper and both sides of the rail (300). A sliding hollow (312) is formed inside the sliding tube section (310), which enables weight reduction of the rail and insertion of a connecting rod (301) for length extension.

[0039] A seating portion (320) is integrally connected to the lower part of the sliding tube portion (310) having the configuration described above. The seating portion (320) is a part that seats the rail (300) on the rail coupling portion (220) of the rail supporter (200). The seating portion (320) can be conceived as having a shape in which the apex portion of the triangular cross-section of the sliding tube portion (310) protrudes downward. In other words, it is a structure in which the lower end of the cross-section of the rail (300) is pointed downward, and this part becomes the seating portion (320) and adheres to the flat upper surface of the rail coupling portion (220). A guide step (221) provided on the rail coupling portion (220) acts to insert the seating portion (320) from the left and right sides of the rail (300), thereby guiding the rail (300) to be accurately positioned on the rail supporter (200). In this seating portion (320), an internal space, a seating hollow (321), is formed, which is utilized when the rail (300) is connected to the rail supporter (200) through the aforementioned rail fastening hole (222) and rail fastening means (225), or is also utilized to accommodate a connecting bar (302) for extending the rail (300).

[0040] Additionally, an opening (322) may be formed along the longitudinal direction in the lower part of the above-mentioned seating portion (320) to connect the seating hollow (321) to the outside. This opening (322) is like a slot that is long and open to the outside of the lower part of the seating portion (320), and through this opening (322), the lower part of the seating portion (320) is formed as a left-right symmetrical seating step (323). The outer surface of this seating step (323) rests precisely on the guide step (221) of the rail supporter (200), thereby preventing the rail (300) from moving in a direction other than the longitudinal direction and preventing it from detaching from the rail supporter (200). In other words, when the rail (300) is placed on the rail supporter (200), the seating step (323) catches on the guide step (221) and is fixed in place without sliding in the longitudinal direction, and a double stability structure is formed in which it is also compressed and fixed up and down through the fastening of the rail fastening means (225).

[0041] In the present invention, two types of connection structures can be selectively utilized to extend and install different rail members (300) by connecting them in the longitudinal direction. The first is a method using a connecting rod (301), and the second is a method using a connecting bar (302).

[0042] First, the connecting rod (301) is a rod-shaped member inserted into the sliding tube section (310) of a rail that is hollow in the longitudinal direction, and serves to align and combine the two rails (300) in a straight line by inserting them simultaneously from both sides into the sliding tube sections (310) of two adjacent rails. The outer diameter of the connecting rod (301) is formed to fit the sliding hollow (312), and a connecting hole (301a) with a screw thread formed in the center is provided along the longitudinal direction of the connecting rod (301). By configuring the bolt-type rail fastening means (225), which is fastened through the rail fastening hole (222) of the rail supporter (200), to be fastened to the connecting hole (301a) of the connecting rod (301), the connecting rod (301) is fixed by the rail fastening means (225) simultaneously with the rail installation without any additional work. Looking at the detailed view of FIG. 2, a connecting rod (301) is inserted into the interior of the rail sliding tube (310), and a rail fastening means (225), which is a bolt, is fastened from below. By using the connecting rod (301) in this way, the joint between the rail members is hidden inside the rail and there is no part protruding to the outside, so when the slider (400) passes through the rail (300) joint, it can pass through smoothly with minimal obstruction.

[0043] Secondly, the connecting bar (302) is a rod or plate-shaped member inserted into the seating portion (320) of the lower rail, and the connecting bar (302) mainly serves to connect the seating portions (320) of two adjacent rails (300) by being fitted into the seating hollow (321) of the rail. To this end, as shown in FIGS. 2 and 4, a longitudinally open cut (322) is formed in the seating portion (320), and seating steps (323) are provided on both sides thereof. The connecting bar (302) is inserted into the seating hollow (321) inside the seating portion (320) from the end of the rail (300), and in the inserted state, it is supported so as not to fall downward by the seating steps (323) formed on both edges of the cut (322). The cross-sectional shape of the connecting bar (302) can be designed as a round bar or a square bar, etc., corresponding to the seating hollow (321), and the connecting bar (302) can also have a connecting hole (302a), such as a screw thread, in the center along the longitudinal direction. As the rail fastening means (225) penetrating the rail supporter (200) engages with and tightens the fastening hole (302a) of the connecting bar (302), the connecting bar (302) is simultaneously fixed without separate additional fastening, just as in the case of the connecting rod (301).

[0044] In FIGS. 2 and 4, an example is illustrated in which a connecting rod (301) is used in the upper sliding tube section (310) and a connecting bar (302) is used in the lower seating section (320) at a single rail joint section (220); however, the present invention allows for the selective use of two connecting means (301, 302) as needed. That is, in straight sections, the connecting rod (301) alone is sufficient to perform alignment and connection between rails, while in special sections such as curves or corners, the connecting bar (302) is additionally used to provide a stronger connection, or conversely, in specific cases, the connection can be simplified using only one means. When both are used, the connection strength is maximized, and the effect of minimizing twisting or play in the rail joint section is achieved, but it is not necessary to use both simultaneously. All such various modified embodiments are included within the scope of the present invention.

[0046] Next, the structure of the slider (400) of the present invention and its connection relationship with the rail are examined. The slider (400) is equipped with a ring connecting part (420) for connecting a worker's safety line (500) and has a roller housing (410) configured to slide along the rail (300) as its main body. For strength and durability, it is preferable that the roller housing (410) be integrally formed by casting or forging, and it surrounds the rail (300) in a circular ring shape, but has a 'C'-shaped open end (411) with a part cut off. This open end (411) means that the roller housing of the slider (400) is not a closed ring that is completely enclosed, but rather has an open bottom. Through this, the slider (400) can be mounted or detached from the rail (300) from the side, and the slider can move continuously along the rail without interference with the rail supporter (200) or the vertical pipe (100). A sliding hole (412) for inserting a rail is formed inside the roller housing (410), and a plurality of roller seating parts (413) are provided around it so that a slider (400) can slide while hanging from the rail (300).

[0047] FIG. 5 is a bottom perspective view of the slider (400) of the present invention, showing the open end (411) and internal structure of the roller housing (410). The rollers (431) of three roller members (430) are installed in a triangular arrangement, and a ring connecting part (420) is formed on one side of the slider. The roller seating part (413) of the slider (400) is formed in a total of three places, in a position that surrounds the rail (300) in a triangular shape. Referring to the example illustrated in FIG. 5 and FIG. 6, there is one roller seating part (413) in the upper part inside the roller housing (410), and two roller seating parts (413) are arranged on both sides of the open end (411) at the bottom. Each roller mounting portion (413) is formed with a roller mounting hole (413a) into which a roller (431) is partially fitted, an installation wall (413b) for installing and fixing a roller shaft (432) that rotatably supports the roller (431), and a shaft coupling hole (413c). The roller mounting hole (413a) is a seat with an uneven shape into which a part of the roller (431) fits, and the shaft coupling hole (413c) is a hole for inserting and fixing the roller shaft (432), with one side open. According to these configurations, the roller (431) of the roller member (430) rotates freely around each roller shaft (432) while being firmly coupled to the roller housing (410). The three roller members (430) each contact the outer sliding surface (311) of the rail (300) to support the slider (400) so that it can move smoothly along the rail (300). One upper roller (431) is positioned to press down on the sliding surface (311), which is a flat surface on the upper side of the rail, and two lower left and right rollers are positioned to support the sliding surface (311), which is a flat surface on the side of the rail, so that the force causing the slider (400) to tilt to one side or rotate due to its own weight or the load of the user while suspended from the rail (300) is effectively offset (each roller is formed as a pair, and in particular, the upper roller is formed as an opposing structure).In other words, a sliding surface (311) of a three-point support structure is formed, preferably as a flat surface close to an isosceles triangle, so that the slider (400) maintains a stable posture regardless of the direction in which force is applied. In particular, since all three-point supported rollers remain in close contact with the sliding surface (311) even in curved rail sections, the slider (400) can move along the curve without derailing or shaking. The arrangement of the sliding surface (311), which is a flat surface in the shape of a triangle, and the corresponding roller (431) provides improved driving stability compared to the isosceles triangle arrangement using only one sliding surface in the prior art.

[0048] A ring connecting part (420) is formed protrudingly on one side of the roller housing (410) of the slider (400). The ring connecting part (420) is a part for connecting a worker's safety line (500) and is formed integrally to be strongly connected to the main body of the slider (400). As seen in FIGS. 5 and 6, the ring connecting part (420) has a pair of connecting wings (421) that are approximately U-shaped, and corresponding mounting holes (422) are formed at their ends. A wing connecting rod (423) is connected through this mounting hole (422), and the wing connecting rod (423) firmly connects the two connecting wings (421) in the form of a bolt, pin, or shaft. Thus, the ring connecting part (420) acts as a closed ring, and the worker can use the safety line (500) attached to a safety belt, etc., by attaching the hook to this ring. The wing connecting rod (423) can be configured to be detachable when necessary, allowing for operations such as temporarily detaching the safety line (500) before attaching or detaching the slider (400) to the rail (300). The ring connecting part (420) is formed in a position and direction that does not hinder the movement of the slider (400), and is positioned so that the slider (400) does not lose balance even when the safety line (500) is subjected to force in any direction.

[0050] According to an embodiment of the present invention, all components of the slider (400) are in harmony so that it can move smoothly at any position on the rail (300). Thanks to the triangular sliding surface (311) and the three-point support roller structure, the slider slides smoothly without twisting, not only in straight sections but also in sections where the rail continues in a curve. In addition, since the connection points between rails are firmly fixed from the inside by connecting rods (301), connecting bars (302), and bolt fastening means (225), the slider can move continuously without impact or jamming even when passing through joints. This ensures uninterrupted safety even when a worker moves from a certain section to another section. Furthermore, the device is easy to disassemble and move as needed, making it easy to remove after construction is completed or to move to another site. The configuration described above is merely one preferred embodiment of the present invention, and various modifications are possible within the scope of the elements described in the claims. Explanation of the symbols

[0052] 100: Vertical pipe 200: Rail Supporter 210: Column connecting part 211: Column hollow 212: Landlord Contracting Work 213: Landlord Contracting Means 220: Rail joint 221: Guide step 222: Rail fastening hole 223: Hollow closed section 224: Extension connecting part 225: Rail fastening means 300: Rail 301: Connecting rod 301a, 302a: Connecting hole 302: Connecting bar 303: Reinforcement bar 310: Slide tube section 311: Slide surface 312: Glide hollow 320: Landing section 321: Landing hollow 322: Incision 323: Settlement step 400: Slider 410: Roller housing 411: Open end 412: Slide hole 413: Roller landing area 413a: Roller seating hole 413a1: First opening 413b: Installation wall 413b1: Installation work 413c: Shaft coupling hole 413c1: Second opening 420: Ring connector 421: Connecting wing 422: Mounting hole 423: Wing connecting rod 430: Roller member 431: Roller 432: Roller shaft 433: Connecting means 500: Safety line

Claims

Claim 1 A handrail sliding device comprising a slider (400) that slides along a rail (300) installed by the intervention of a rail supporter (200) on the upper end of a vertical pipe (100), wherein the rail supporter (200) comprises a support coupling part (210) fixedly coupled to the upper end of the vertical pipe (100) and a rail coupling part (220) integrally provided on the upper end of the support coupling part (210) to support the rail (300), wherein the rail coupling part (220) is provided with guide steps (221) on both sides in the longitudinal direction of the upper surface and a rail fastening hole (222) formed through the rail coupling part (220) in the vertical direction, and wherein the rail (300) has three flat sliding surfaces (311) formed in an inverted triangular shape on its outer surface so that the roller (431) of the slider (400) makes rolling contact along the longitudinal direction, and inside The device integrally includes a sliding tube section (310) in which a sliding hollow (312) is formed, and a seating section (320) in which a apex portion of the sliding tube section (310) is formed to protrude downward and a seating hollow (321) is formed inside. The seating section (320) is provided with an opening (322) formed at the bottom so that the seating hollow (321) is connected to the outside along the longitudinal direction, and seating steps (323) formed symmetrically on both sides of the opening (322). The outer surface of the seating steps (323) rests on the guide steps (221) on both sides of the rail coupling section (220), and the guide steps (221) restrain both sides in the longitudinal direction of the seating section (320), thereby allowing the left-right position and rotational position of the rail (300) to be shaped when the rail (300) is seated on the rail coupling section (220). The rail (300) is aligned by interlocking and is restricted from moving in a direction other than the longitudinal direction. The handrail sliding device comprises a plurality of rails (300) that are connected to each other in the longitudinal direction and extended, wherein a connecting bar (302) is inserted across the seating hollow (321) of each of a pair of adjacent rails (300) among the plurality of rails (300).A handrail sliding device comprising a configuration in which the connecting bar (302) is supported so as not to be displaced downward by the seating step (323), and a rail fastening means (225) inserted into the rail fastening hole (222) is fastened to the connecting hole (302a) of the connecting bar (302) through the cut (322), thereby causing the rail (300) to be compressed and fixed to the rail supporter (200) by the fastening of the rail fastening means (225), and at the same time, a pair of adjacent rails (300) are connected. Claim 2 A handrail sliding device according to claim 1, wherein a connecting rod (301) is further provided across a sliding hollow (312) formed in a sliding tube section (310) of each of a pair of adjacent rails (300), the connecting rod (301) has a connecting hole (301a) formed in the longitudinal center, and the connecting rod (301) is fixed by a rail fastening means (225) to align and connect each sliding tube section (310) of the pair of adjacent rails (300) in a straight line. Claim 3 In paragraph 2, the connecting rod (301) and the connecting bar (302) are arranged together vertically at a single rail coupling part (220) position, so that a pair of adjacent rails (300) are connected together at the upper sliding tube part (310) and the lower seating part (320), and the connecting rod (301) and the connecting bar (302) are fixed by the rail fastening means (225) handrail sliding device. Claim 4 In claim 1, the slider (400) includes a roller housing (410) having a sliding hole (412) connected to a downwardly open end (411) in the shape of a 'C', and in the roller housing (410), three roller members (430) corresponding to each of the three sliding surfaces (311) of the rail (300) are arranged in an inverted triangular shape, and the three roller members (430) include an upper roller member that contacts the upper sliding surface of the sliding tube section (310) and lower left and right roller members that contact each of the sliding surfaces of the sliding tube section (310), thereby preventing the slider (400) from rotating relative to the rail (300) while suspended from the rail (300). Claim 5 In claim 1, the support connecting part (210) is formed as a hollow tube body having a support hollow (211) into which the upper end of the vertical pipe (100) is inserted, and a support fastening hole (212) is provided on the side, and the support connecting part (210) is fixedly connected to the vertical pipe (100) by a support fastening means (213) connected to the support fastening hole (212), and the rail connecting part (220) includes a hollow closing end (223) that closes the upper end of the support connecting part (210) and an extension connecting end (224) that extends to both sides of the hollow closing end (223), and the rail fastening hole (222) is formed in the rail connecting part (220) in a plurality, forming a handrail sliding device. Claim 6 In paragraph 3, each of the pair of rails (300) further includes a reinforcing bar (303) that divides the sliding tube section (310) and the seating section (320) along the longitudinal direction, and the sliding hollow (312) of the sliding tube section (310) and the seating hollow (321) of the seating section (320) are divided vertically by the reinforcing bar (303) in a handrail sliding device.

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