Vertical fall prevention device

Abstract

A vertical fall prevention device according to an embodiment of the present invention, which is installed on a structure having a plurality of rungs formed while being coupled to a rope so that a worker is connected to the rope and is prevented from falling in a work space, comprises: an installation portion connected to the rungs and on which the rope is installed; a tension adjustment portion which is connected to the rungs, is located at the lower side of the installation portion, and adjusts the tension of the rope; and a guide portion which is located between the installation portion and the tension adjustment portion, is connected to the rungs, and encompasses the rope to guide the arrangement of the rope. The installation portion may comprise: an installation body which is located at one side of the rungs, is formed in the vertical direction, and includes an installation adjustment hole formed through the inside thereof; a first installation fixing portion which is formed on the installation body and fixed to the rungs while gripping the rungs; a second installation fixing portion which is formed under the first installation fixing portion, is partially formed through the installation adjustment hole so as to adjust the height thereof, and is fixed to the rungs while gripping the rungs; and a latch portion which is connected to the installation body to be located above the first installation fixing portion and by which one end of the rope is caught. The tension adjustment portion may comprise: an adjustment body which is located at one side of the rungs, is installed in the vertical direction, and has an adjustment control hole formed through the inside thereof; a first adjustment fixing portion which is formed on the adjustment body and fixed to the rungs while gripping the rungs; a second adjustment fixing portion which is formed above the first adjustment fixing portion, is partially formed through the adjustment control hole so as to adjust the height thereof, and is fixed to the rungs while gripping the rungs; and a pulling portion of which part is fixedly connected to the adjustment body and which pulls the other end of the rope.

Description

Vertical fall prevention device

[0001] The present invention relates to a device for preventing a worker from falling in a workspace. Specifically, the present invention relates to a device that can be installed on a structure with a crossbar formed thereon while connected to a rope, so as to prevent a worker from falling in a workspace by connecting the worker to the rope.

[0002] Various types of safety devices are utilized at construction and industrial sites to prevent worker safety accidents. In particular, for work performed at heights, workers are required to wear specific devices to prevent falls. Article 371 of the Safety Regulations defines that since working at heights poses a risk of accidents and is prone to causing fatalities, it is necessary to use safe equipment; therefore, the use of fall prevention devices during work at heights is one of the requirements that must be strictly observed at the site.

[0003] As an example of a fall prevention device, a method may be utilized in which a worker is equipped with a device fixed at a specific point within the workspace, and a safety device with a flexible structure, such as a wire, is connected to the fixed device. Specifically, if a structure with a crossbar, such as a ladder, is placed in the workspace, the worker can secure a specific fixed device to the crossbar and attach a safety device, such as a clamp, to the fixed device.

[0004] With such fixing and safety devices, even if a worker falls by mistake, the worker can be prevented from falling by hanging from the fixing device. However, even when using fall prevention devices, issues regarding the connection strength of the devices continue to arise, such as the devices detaching from the structure due to the weight of the worker. Furthermore, there is a problem where workers cannot easily attach or detach the fall prevention devices in harsh working environments, leading to secondary accidents.

[0005] Therefore, there is a need for a fall prevention device that has high bonding strength to the structure and allows workers to easily connect or disconnect it.

[0006] In this regard, Korean Patent Publication No. 10-2022-0112148 discloses a fall prevention device combined with a hook. The invention relates to a hook for high-altitude work and a fall prevention device for a safety device worn for the safety of workers during high-altitude work at construction sites and industrial sites.

[0007] The problem that the present invention aims to solve is to provide a vertical fall prevention device that is more stably and firmly connected to a crossbar.

[0008] The problem that the present invention aims to solve is to provide a vertical fall prevention device that can be easily connected to or disconnected from a crossbar.

[0009] A vertical fall prevention device according to an embodiment of the present invention, which is installed on a structure having a plurality of rungs formed in a state coupled with a rope so as to prevent a worker from falling in a workspace by connecting the worker to the rope, may include an installation part connected to the rungs and having a rope installed thereon, a tension adjustment part connected to the rungs and located below the installation part and adjusting the tension of the rope, and a guide part located between the installation part and the tension adjustment part and connected to the rungs, wrapping the rope to guide the arrangement of the rope.

[0010] The installation part may include an installation body located on one side of the crossbar and formed along the vertical direction, and including an installation adjustment hole formed through the inside; a first installation fixing part formed on the installation body and fixed to the crossbar by gripping the crossbar; a second installation fixing part formed on the lower side of the first installation fixing part, with a portion formed through the installation adjustment hole to adjust the height, and fixed to the crossbar by gripping the crossbar; and a catch part connected to the installation body so as to be located on the upper side of the first installation fixing part, and on which one end of a rope is caught.

[0011] The tension adjustment unit may include an adjustment body located on one side of the crossbar and formed along the vertical direction, including an adjustment adjustment hole formed through the inner side; a first adjustment fixing part formed on the adjustment body and fixed to the crossbar by gripping it; a second adjustment fixing part formed on the upper side of the first adjustment fixing part, with a portion formed through the adjustment adjustment hole to adjust the height, and fixed to the crossbar by gripping it; and a pulling part with a portion fixedly connected to the adjustment body and pulling the other end of the rope.

[0012] According to a preferred embodiment of the present invention, by connecting more stably and firmly with the crossbar, the worker can be supported more stably and the problem of the connection with the crossbar coming loose can be prevented in advance.

[0013] According to a preferred embodiment of the present invention, by being easily coupled to or uncoupled from a crossbar, a worker in a work environment can handle the fall prevention device more easily.

[0014] In addition to this, the configurations according to the preferred embodiments of the present invention may include effects that are easily predictable by those skilled in the art.

[0015] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings.

[0016] FIG. 1 is a perspective view of a vertical fall prevention device according to a first embodiment of the present invention.

[0017] Figure 2 shows a rope being installed in an installation part according to the first embodiment of the present invention.

[0018] Figure 3 shows a rope being installed in an installation part according to the first embodiment of the present invention.

[0019] Figure 4 shows a rope being hung on an installation part according to the first embodiment of the present invention.

[0020] FIG. 5 shows the installation part according to the first embodiment of the present invention being fixed to the crossbar.

[0021] FIG. 6 shows the installation part according to the first embodiment of the present invention being fixed to the crossbar.

[0022] FIG. 7 is a perspective view of a tension adjustment unit according to a first embodiment of the present invention.

[0023] FIG. 8 is a perspective view of a guide portion according to a first embodiment of the present invention.

[0024] FIG. 9 is a perspective view of a vertical fall prevention device according to a second embodiment of the present invention.

[0025] The embodiments are described in detail below with reference to exemplary drawings. It should be noted that when assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments, if it is determined that a detailed description of related known configurations or functions would hinder understanding of the embodiments, such detailed description is omitted.

[0026] Additionally, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments. These terms are intended only to distinguish the components from other components, and the nature, order, or sequence of the components is not limited by the terms. Where it is stated that a component is "connected," "combined," or "joined" to another component, it should be understood that the component may be directly connected or joined to the other component, but that another component may also be "connected," "combined," or "joined" between each component.

[0027] Components included in any one embodiment and components having common functions shall be described using the same names in other embodiments. Unless otherwise stated, the description in any one embodiment may also apply to other embodiments, and specific descriptions shall be omitted to the extent of overlap.

[0028] First embodiment

[0029] FIG. 1 is a perspective view of a vertical fall prevention device (1) according to a first embodiment of the present invention.

[0030] Referring to FIG. 1, a vertical fall prevention device (1) according to the first embodiment of the present invention can be connected to a worker in a workspace to prevent the worker from falling. For example, the vertical fall prevention device (1) can be installed on a structure (L) in which a plurality of crossbars (N) (rung) are formed while combined with a rope (R).

[0031] Specifically, a structure (L), such as a ladder with multiple crossbars (N), and a vertical fall prevention device (1) are fixedly connected to each other, and a worker can prevent a fall accident by attaching a safety device to a rope (R) provided in the vertical fall prevention device (1). In other words, by connecting a safety device having a clamp structure or a hook structure to the vertical fall prevention device (1), the worker is supported by the vertical fall prevention device (1) and the ladder, thereby preventing a fall.

[0032] The vertical fall prevention device (1) is stably connected to the crossbar (N) and can stably grip the rope (R). For example, the vertical fall prevention device (1) can wrap around the crossbar (N) and be firmly fixed to the crossbar (N). Additionally, the vertical fall prevention device (1) may be adjustable in height at the part connected to the crossbar (N).

[0033] In addition, the rope (R) can be securely connected to the vertical fall prevention device (1). For example, the rope (R) can be easily connected or fastened to the vertical fall prevention device (1) by means of a structure in which the rope (R) is caught. Furthermore, the vertical fall prevention device (1) may include a configuration for adjusting the tension of the rope (R) to keep the rope (R) from becoming loose. Finally, a part of the vertical fall prevention device (1) may wrap around the rope (R) to guide the positioning of the rope (R).

[0034] The vertical fall prevention device (1) may include an installation part (10), a tension adjustment part (11), and a guide part (12).

[0035] FIG. 2 shows a rope (R) being installed on an installation part (10) according to the first embodiment of the present invention, FIG. 3 shows a rope (R) being installed on an installation part (10) according to the first embodiment of the present invention, and FIG. 4 shows a rope (R) being hung on an installation part (10) according to the first embodiment of the present invention.

[0036] Referring to FIGS. 2 to 4, the installation part (10) is connected to a crossbar (N), and a rope (R) can be installed on the installation part (10). For example, the installation part (10) is formed on the upper side of a structure (L) on which the crossbar (N) is formed, and the installation part (10) can be installed by the rope (R) being hooked onto the installation part (10) while the installation part (10) is connected to the crossbar (N).

[0037] Specifically, while the installation part (10) is fixedly connected to a plurality of crossbars (N), a rope (R) can be positioned to pass through a part of the installation part (10). Subsequently, when a part of the installation part (10) is closed and wraps around the rope (R), the rope (R) can fall downward due to gravity and catch on the installation part (10). At this time, the cross-sectional area of ​​one end of the rope (R) can be formed in a structure that is wider than the cross-sectional area of ​​the body part of the rope (R).

[0038] More specifically, the installation part (10) may include an installation body (100), a first installation fixing part (101), a second installation fixing part (102), and a locking part (103).

[0039] The installation body (100) may be located on one side of the crossbar (N). For example, the installation body (100) may be formed along the vertical direction on one side of the crossbar (N). In other words, the installation body (100) may be formed along the direction in which a plurality of crossbars (N) are arranged sequentially.

[0040] Additionally, the longitudinal direction of the installation body (100) may be perpendicular to the longitudinal direction of the crossbar (N). For example, the crossbar (N) may be formed along a direction parallel to the ground, that is, a horizontal direction, and the installation body (100) may be formed along a direction perpendicular to the ground, that is, an up-and-down direction.

[0041] Additionally, the installation body (100) may be formed to form an empty space on the inside. For example, when viewed from the top, the installation body (100) may include a 'U' shape. That is, the installation body (100) may be formed with a first part parallel to the crossbar (N) and a second part connected to both sides of the first part, perpendicular to the crossbar (N), and spaced apart from each other. Due to the structure of the installation body (100) in this way, there is an advantage that the manufacturing cost of the vertical fall prevention device (1) is reduced and the vertical fall prevention device (1) is made lighter.

[0042] The installation body (100) may include an installation adjustment hole (100a) formed through the inner side. For example, the installation adjustment hole (100a) may be formed through the side of the installation body (100). The installation adjustment hole (100a) may be formed along the installation body (100). That is, the installation adjustment hole (100a) may be formed along the vertical direction.

[0043] The installation adjustment hole (100a) may be composed of a long hole formed along the longitudinal direction of the installation body (100) and a plurality of holes formed from the long hole toward the crossbar (N). Preferably, the plurality of holes of the installation adjustment hole (100a) may include a curved shape.

[0044] According to the shape of the installation adjustment hole (100a) as described above, the installation part (10) can be connected to various types of crossbar (N) structures (L). The connection of the installation part (10) by the installation adjustment hole (100a) will be explained in detail in the second installation fixing part (102) described later.

[0045] The first installation fixing part (101) is formed on the installation body (100) and can be fixed to the crossbar (N) by gripping the crossbar (N). For example, the first installation fixing part (101) can be fixedly connected to the upper side of the installation body (100) and fixed to the crossbar (N) at the highest position among the plurality of crossbars (N) to which the vertical fall prevention device (1) is connected.

[0046] The first installation fixing part (101) may include a first installation fixing body (1010) and a first installation coupling part (1011).

[0047] The first fixed installation body (1010) is provided in pairs and can move closer to or further away from each other by rotating one side fixedly connected to the upper side of the installation body (100) around a rotation axis. For example, a pair of the first fixed installation bodies (1010) can be formed on the upper and lower sides of the crossbar (N). That is, a pair of the first fixed installation bodies (1010) can move closer to or further away from the crossbar (N) through rotational movement. In other words, a pair of the first fixed installation bodies (1010) can wrap around the upper and lower sides of the crossbar (N).

[0048] Additionally, the first installation fixing part (101) may further include a fixing connection part that connects the pair of first installation fixing bodies (1010) to the installation body (100) by penetrating the pair of first installation fixing bodies (1010) and the installation body (100). The fixing connection part can connect the pair of first installation fixing bodies (1010) and the installation body (100) through screw coupling while penetrating the pair of first installation fixing bodies (1010) and the installation body (100). The fixing connection part can be applied in the same way to the second installation fixing body (1020), the first adjustment fixing body (1110), the second adjustment fixing body (1120), and the guide fixing body (122) described later.

[0049] The first installation connecting part (1011) is formed in one of the pair of first installation fixing bodies (1010) and can be connected by penetrating the other of the pair of first installation fixing bodies (1010) so that the pair of first installation fixing bodies (1010) grip and fix the crossbar (N).

[0050] For example, the first installation coupling part (1011) can be rotated around a rotation axis on one side connected to one of a pair of first installation fixing bodies (1010), and can be screw-coupled with the other side of the first installation coupling part (1011) penetrating the other of the pair of first installation fixing bodies (1010).

[0051] The specific structure of the first installation coupling part (1011) will be described in the second installation coupling part (1021) described later. The structures of the first installation coupling part (1011) and the second installation coupling part (1021) may be identical to each other.

[0052] FIG. 5 shows the installation part (10) according to the first embodiment of the present invention being fixed to a crossbar (N), and FIG. 6 shows the installation part (10) according to the first embodiment of the present invention being fixed to a crossbar (N).

[0053] Referring to FIGS. 5 and 6, the second installation fixing part (102) is formed on the lower side of the first installation fixing part (101) and can be fixed to the crossbar (N) by gripping the crossbar (N). For example, the second installation fixing part (102) can be fixed to a crossbar (N) at a lower position than the crossbar (N) to which the first installation fixing part (101) is fixed.

[0054] A portion of the second installation fixing part (102) is formed through the installation adjustment hole (100a), so that the height of the second installation fixing part (102) can be adjusted. For example, the installation adjustment hole (100a) may include a long hole formed along the longitudinal direction of the installation body (100) and a plurality of holes formed from the long hole toward the crossbar (N) and having different heights from each other. The second installation fixing part (102) is positioned through the plurality of holes of the installation adjustment hole (100a), and by positioning the second installation fixing part (102) in one of the plurality of holes, the positioning height of the second installation fixing part (102) can be adjusted.

[0055] According to this structure, the second installation fixing part (102) can be fixedly connected to a crossbar (N) structure (L) of various shapes and heights.

[0056] The second installation fixing part (102) may include a second installation fixing body (1020) and a second installation coupling part (1021).

[0057] The second installation fixed body (1020) is provided in pairs and can move closer to or further away from each other by rotating one side connected to the installation body (100) around a rotation axis. For example, a pair of second installation fixed bodies (1020) can be formed on the upper and lower sides of the crossbar (N). That is, a pair of second installation fixed bodies (1020) can move closer to or further away from the crossbar (N) through rotational movement. In other words, a pair of second installation fixed bodies (1020) can wrap around the upper and lower sides of the crossbar (N).

[0058] The second installation fixed body (1020) is formed through the installation adjustment hole (100a) and moves along the installation adjustment hole (100a), thereby allowing the height of the second installation fixed body (1020) to be adjusted. That is, as previously described, the placement height of the second installation fixed body (1020) can be adjusted by placing the second installation fixed body (1020) in one of the multiple holes.

[0059] The second installation connecting part (1021) is formed in one of the pair of second installation fixing bodies (1020) and can be connected by penetrating the other of the pair of second installation fixing bodies (1020) so that the pair of second installation fixing bodies (1020) grip and fix the crossbar (N).

[0060] For example, the second installation coupling part (1021) can be rotated around a rotation axis on one side connected to one of a pair of second installation fixing bodies (1020), and the other side of the second installation coupling part (1021) can be screw-coupled with a penetrating state to the other of a pair of first installation fixing bodies (1010).

[0061] Specifically, the rotation axis of the second installation coupling part (1021) may be parallel to the crossbar (N). After the height of a pair of second installation fixing bodies (1020) is adjusted and the pair of second installation fixing bodies (1020) are positioned on the upper and lower sides of the crossbar (N), the second installation coupling part (1021) may rotate and be inserted into a coupling groove (1020a) formed in one of the pair of second installation fixing bodies (1020). The coupling groove (1020a) may be formed by being recessed from the outer surface of one of the pair of second installation fixing bodies (1020) toward the second installation fixing body (1020).

[0062] With the second installation coupling part (1021) inserted into the coupling groove (1020a), a pair of second installation fixing bodies (1020) rotate to move closer to each other, and the second installation coupling part (1021) can pass through a coupling hole (1020b) formed in the other of the pair of second installation fixing bodies (1020). The coupling hole (1020b) can be formed to pass through the second installation fixing body (1020) in the direction in which the second installation fixing body (1020) rotates. By passing the second installation coupling part (1021) through the coupling hole (1020b) and screw-coupled, the second installation fixing part (102) can be fixed to the crossbar (N).

[0063] The first installation coupling part (1011) described above, the first adjustment coupling part (1111), the second adjustment coupling part (1121), and the guide coupling part (123) described later can also be combined in the same structure through the coupling groove (1020a) and the coupling member (1020b).

[0064] In addition, the shapes of the first installation fixing part (101) and the second installation fixing part (102) may be identical to each other.

[0065] One end of the rope (R) can be caught in the catch portion (103). Additionally, the catch portion (103) can be connected to the installation body (100) so as to be located above the first installation fixing portion (101). That is, the catch portion (103) can be formed at the uppermost side of the vertical fall prevention device (1). With the rope (R) passing through the catch portion (103), the catch portion (103) may include a specific closing structure to prevent the rope (R) from coming off the catch portion (103).

[0066] Specifically, the locking part (103) may include a locking body (1030) and a rotating part (1031).

[0067] The locking body (1030) can be fixedly connected to the installation body (100) so as to be located on the upper side of the first installation fixing part (101). For example, the locking body (1030) can be connected to the upper end of the installation body (100). The locking body (1030) can be formed to extend from the installation body (100) in the opposite direction of the crossbar (N). That is, the crossbar (N) is located on one side of the installation body (100), and the locking body (1030) can be formed to extend to the other side opposite the installation body (100).

[0068] The locking body (1030) may include a locking hole (1030a) through which a rope (R) passes on the inside. For example, the locking body (1030) may include a first part connected to the installation body (100) along the installation body (100) and a second part extending from the first part to the other side of the installation body (100), and the locking hole (1030a) may be formed through the second part. Specifically, the locking hole (1030a) may be formed through in the vertical direction. The locking body (1030) may have an overall 'L' shape.

[0069] The rotating part (1031) can rotate toward the locking hole (1030a) with one side fixed to the locking body (1030) as the axis of rotation while the rope (R) passes through the locking hole (1030a). For example, the rotating part (1031) may be connected to a first part of the locking body (1030) and may rotate with the connected part as the axis of rotation. The axis of rotation of the rotating part (1031) may be parallel to the crossbar (N).

[0070] One end of the rope (R) can be caught on the rotating part (1031). Specifically, the rotating part (1031) may include a rotating part (1031a) that is fixed to the catch body (1030) and rotatable toward the catch hole (1030a), and a catch part (1031b) that extends from the rotating part (1031a) in a direction away from the fixed side.

[0071] The catch portion (1031b) may form a gap space formed on the inner side with a width smaller than the width of the catch hole (1030a). The catch portion (1031b) may be formed to protrude in pairs from the rotating portion (1031a) to form a gap space between them. Additionally, the catch portion (1031b) may be formed to wrap around the side of the catch body (1030), that is, the side of the second part of the catch body (1030). At this time, the cross-sectional area of ​​one end of the rope (R) may be larger than the cross-sectional area of ​​the other part of the rope (R).

[0072] One end of the rope (R) can be caught on a pair of catch portions (1031b). Specifically, referring to FIG. 2, the rope (R) can pass through the catch hole (1030a) while the rotating portion (1031) is rotated to be separated from the catch hole (1030a). Referring to FIG. 3, the rotating portion (1031) can be rotated in the opposite direction again so that the rotating portion (1031) covers the catch hole (1030a). Referring to FIG. 4, the rope (R) moves downward while being pulled in the direction of gravity, and one end of the rope (R) can be caught on the catch portion (1031b) and secured.

[0073] FIG. 7 is a perspective view of a tension adjustment unit (11) according to a first embodiment of the present invention.

[0074] Referring to FIG. 7, the tension adjustment unit (11) can adjust the tension of the rope (R). For example, the tension adjustment unit (11) is connected to the crossbar (N) and is located on the lower side of the installation unit (10), and can adjust the tension of the rope (R) by pulling the other end of the rope (R). Specifically, the tension adjustment unit (11) can pull the other end of the rope (R) in the opposite direction to one end. In other words, the tension adjustment unit (11) can pull the lower end of the rope (R).

[0075] The tension adjustment unit (11) may include an adjustment body (110), a first adjustment fixing unit (111), a second adjustment fixing unit (112), and a pulling unit (113).

[0076] The adjustment body (110) is located on one side of the crossbar (N) and can be formed along the vertical direction. For example, the adjustment body (110) can be formed along the direction in which a plurality of crossbars (N) are arranged sequentially.

[0077] Additionally, the longitudinal direction of the adjustment body (110) may be perpendicular to the longitudinal direction of the crossbar (N). For example, the adjustment body (110) may be formed along a direction perpendicular to the ground, that is, an up-and-down direction.

[0078] Additionally, the adjustment body (110) may be formed to form an empty space on the inside. For example, when viewed from the top, the adjustment body (110) may include a 'U' shape. That is, the adjustment body (110) may be formed with a first part parallel to the crossbar (N) and a second part connected to both sides of the first part, perpendicular to the crossbar (N), and spaced apart from each other. Due to the structure of the adjustment body (110) in this way, there is an advantage that the manufacturing cost of the vertical fall prevention device (1) is reduced and the vertical fall prevention device (1) is made lighter.

[0079] The adjustment body (110) may include an adjustment adjustment hole (100b) formed through the inner side. For example, the adjustment adjustment hole (100b) may be formed through the side of the adjustment body (110). The adjustment adjustment hole (100b) may be formed along the adjustment body (110). That is, the adjustment adjustment hole (100b) may be formed along the up-and-down direction.

[0080] The adjustment adjustment hole (100b) may be composed of a long hole formed along the longitudinal direction of the adjustment body (110) and a plurality of holes formed from the long hole toward the crossbar (N). Preferably, the plurality of holes of the adjustment adjustment hole (100b) may include a curved shape. According to the shape of such an adjustment adjustment hole (100b), the tension adjustment part (11) can be connected to various types of crossbar (N) structures (L).

[0081] The first adjustment fixing part (111) is formed on the adjustment body (110) and can be fixed to the crossbar (N) by gripping the crossbar (N). For example, the first adjustment fixing part (111) is formed on the lower side of the adjustment body (110) and can be fixed to the crossbar (N) at the lowest position among the plurality of crossbars (N) to which the vertical fall prevention device (1) is connected.

[0082] The first adjustment fixing part (111) may include a first adjustment fixing body (1110) and a first adjustment coupling part (1111).

[0083] The first adjustment fixed body (1110) is provided in a pair, and can move closer to or further away from each other by rotating one side fixedly connected to the lower side of the adjustment body (110) around a rotation axis. For example, a pair of the first adjustment fixed bodies (1110) can be formed on the upper and lower sides of the crossbar (N). That is, a pair of the first adjustment fixed bodies (1110) can move closer to or further away from the crossbar (N) through rotational movement. In other words, a pair of the first adjustment fixed bodies (1110) can wrap around the upper and lower sides of the crossbar (N). Additionally, the first adjustment fixed part (111) may further include the previously described fixed connection part.

[0084] The first adjustment coupling part (1111) is formed in one of the pair of first adjustment fixing bodies (1110) and can be coupled by penetrating into the other of the pair of first adjustment bodies (110) so that the pair of first adjustment fixing bodies (1110) grip and fix the crossbar (N).

[0085] For example, the first adjustment coupling part (1111) can be rotated around a rotation axis at one side connected to one of a pair of first adjustment fixed bodies (1110), and the other side of the first adjustment coupling part (1111) can be screw-coupled with a penetrating state to the other of the pair of first adjustment fixed bodies (1110).

[0086] The second adjustment fixing part (112) is formed on the upper side of the first adjustment fixing part (111) and can be fixed to the crossbar (N) by gripping the crossbar (N). For example, the second adjustment fixing part (112) can be fixed to a crossbar (N) at a higher position than the crossbar (N) to which the first adjustment fixing part (111) is fixed.

[0087] A portion of the second adjustment fixing part (112) is formed through the adjustment adjustment hole (100b), so that the height of the second adjustment fixing part (112) can be adjusted. For example, the adjustment adjustment hole (100b) may include a long hole formed along the longitudinal direction of the adjustment body (110) and a plurality of holes formed from the long hole toward the crossbar (N) and having different heights from each other. The second adjustment fixing part (112) is positioned through the plurality of holes of the adjustment adjustment hole (100b), and by positioning the second adjustment fixing part (112) in one of the plurality of holes, the position height of the second adjustment fixing part can be adjusted.

[0088] According to this structure, the second adjustment fixing part (112) can be fixedly connected to a crossbar (N) structure (L) of various shapes and heights.

[0089] The second adjustment fixing part (112) may include a second adjustment fixing body (1120) and a second adjustment coupling part (1121).

[0090] The second adjustment fixing body (1120) is provided as a pair, and the pair of second adjustment fixing bodies (1120) can move closer to or further away from each other by rotating one side connected to the adjustment body (110) around a rotation axis. For example, the pair of second adjustment fixing bodies (1120) can be formed on the upper and lower sides of the crossbar (N). That is, the pair of second adjustment fixing bodies (1120) can move closer to or further away from the crossbar (N) through rotational movement. In other words, the pair of second adjustment fixing bodies (1120) can wrap around the upper and lower sides of the crossbar (N).

[0091] The second adjustment fixed body (1120) is formed through the adjustment adjustment hole (100b) and can move along the adjustment adjustment hole (100b). As the second adjustment fixed body (1120) moves along the adjustment adjustment hole (100b), the height of the second adjustment fixed body (1120) can be adjusted.

[0092] The second adjustment coupling part (1121) is formed in one of the pair of second adjustment fixing bodies (1120) and can be coupled by penetrating through the other of the pair of second adjustment fixing bodies (1120) so that the pair of second adjustment fixing bodies (1120) grip and fix the crossbar (N).

[0093] For example, the second adjustment coupling part (1121) can be rotated around a rotation axis on one side connected to one of a pair of second adjustment fixing bodies (1120), and the other side of the second adjustment coupling part (1121) can be screw-coupled with a penetrating one of a pair of first adjustment fixing bodies (1110).

[0094] The pulling part (113) can pull the other end of the rope (R). For example, a part of the pulling part (113) may be fixedly connected to the adjustment body (110), and another part of the pulling part (113) may be connected to the other end of the rope (R). The pulling part (113) can adjust the tension of the rope (R) by pulling the other end of the rope (R) downward.

[0095] The pulling part (113) may include a fastening part (1130), a moving part (1131), a pulling body (1132), and a tightening part (1133).

[0096] One side of the connecting part (1130) can be connected to the other end of the rope (R). For example, the other end of the rope (R) may include a loop shape, and the connecting part (1130) may be connected to the other end of the rope (R) by penetrating the loop of the rope (R) so as to be connected to the loop of the rope (R). The connecting part (1130) is formed in an up-and-down direction and may form an empty space on the inside. A moving part (1131), which will be described later, may be disposed in the empty space on the inside of the connecting part (1130).

[0097] A movable part (1131) is formed through the other side of the fastening part (1130) and can move along the up and down direction. Specifically, the movable part (1131) moves downward by the tightening operation of the tightening part (1133) described later, and the tension of the rope (R) can be adjusted as the fastening part (1130) moves downward by the downward movement of the movable part (1131). In addition, the movable part (1131) can be elastically coupled with the fastening part (1130).

[0098] Specifically, the moving part (1131) may include a moving part (1131a), a rod (1131b), and an elastic part (1131c).

[0099] One side of the movable part (1131a) may be connected to a part of the fastening part (1130) so as to be spaced apart from the inner lower surface of the fastening part (1130) at a certain distance. Additionally, the other side of the movable part (1131a) may be inserted into the inner side of the adjustment body (110). That is, the movable part (1131a) may be positioned through the inner empty space of the fastening part (1130) and the inner empty space of the adjustment body (110).

[0100] The movable part (1131a) may be movable along the fastening part (1130). For example, the side of the fastening part (1130) is formed to penetrate the movable part (1131a), so that the movable part (1131a) can move up and down along the side of the fastening part (1130).

[0101] The rod (1131b) may be formed to extend downward from the lower surface of the moving part (1131a). For example, the rod (1131b) may be formed downward from the lower surface of the moving part (1131a) to penetrate the other side of the fastening part (1130) and the pulling body (1132) described later. That is, the rod (1131b) may be moved in an up-and-down direction while penetrating the other side of the fastening part (1130) and the pulling body (1132).

[0102] The elastic portion (1131c) may be positioned between the movable portion (1131a) and the inner lower surface of the fastening portion (1130). The elastic portion (1131c) wraps around a portion of the rod (1131b) and may be compressed or decompressed by the movable portion (1131a) and the fastening portion (1130). The elastic portion (1131c) may include an elastic material.

[0103] One side of the pulling body (1132) is fixed to the adjusting body (110), and the other side of the pulling body (1132) can be formed to pass through so that the moving part (1131) passes through. For example, while one side of the pulling body (1132) is fixed to the fixed body, it can be formed to extend in the opposite direction of the crossbar (N).

[0104] The tightening part (1133) can tighten one end of the moving part (1131) that penetrates the pulling body (1132) to move the moving part (1131) in an up-and-down direction. For example, the tightening part (1133) may be located on the lower side of the pulling body (1132). In other words, the tightening part (1133) may come into contact with the lower surface of the pulling body (1132). The tightening part (1133) may tighten the lower side of the rod (1131b). The axis of rotation for the tightening operation of the tightening part (1133) may be the rod (1131b).

[0105] FIG. 8 is a perspective view of a guide part (12) according to a first embodiment of the present invention.

[0106] Referring to FIG. 8, the guide portion (12) can wrap around the rope (R) to guide the arrangement of the rope (R). For example, the guide portion (12) is located between the installation portion (10) and the tension adjustment portion (11) and is connected to the crossbar (N). It can wrap around the central part of the rope (R) to guide the arrangement of the rope (R). Specifically, one side of the guide portion (12) is fixed to the crossbar (N), and the other side, opposite to the guide portion (12), can grip the rope (R).

[0107] The guide section (12) may include a guide body (120), a gripping section (121), a guide fixing body (122), and a guide coupling section (123).

[0108] The guide body (120) may be located on one side of the crossbar (N). For example, the guide body (120) may be formed in an up-and-down direction on one side of the crossbar (N).

[0109] The gripping portion (121) is formed from the guide body (120) toward the rope (R) and can grip the rope (R). For example, a part of the gripping portion (121) includes a shape corresponding to the outer surface of the rope (R), and the gripping portion (121) can wrap the rope (R) in an up-and-down direction.

[0110] A pair of guide fixing bodies (122) are provided and can move closer to or further apart from each other by rotating one side fixedly connected to the guide body (120) around a rotation axis. For example, a pair of guide fixing bodies (122) can be formed on the upper and lower sides of the crossbar (N). That is, a pair of guide fixing bodies (122) can move closer to or further away from the crossbar (N) through rotational movement. In other words, a pair of guide fixing bodies (122) can wrap around the upper and lower sides of the crossbar (N).

[0111] The guide coupling portion (123) is formed in one of the pair of guide fixing bodies (122) and can be coupled by penetrating through the other of the pair of guide fixing bodies (122) so that the pair of guide fixing bodies (122) grip and fix the crossbar (N).

[0112] The first installation fixing part (101), the second installation fixing part (102), the first adjustment fixing part (111), and the second adjustment fixing part (112) may be formed with the same shape as each other. The guide fixing body (122) and the guide coupling part (123) may be formed with the same shape as the first installation fixing part (101), the second installation fixing part (102), the first adjustment fixing part (111), and the second adjustment fixing part (112).

[0113] Second embodiment

[0114] Hereinafter, a vertical fall prevention device (2) according to a second embodiment of the present invention will be described. Unlike the vertical fall prevention device (1) according to the first embodiment of the present invention, the vertical fall prevention device (2) according to the second embodiment of the present invention may include an installation part (20) of a different shape. Details identical to those of the vertical fall prevention device (1) according to the first embodiment of the present invention described above will be omitted below.

[0115] FIG. 9 is a perspective view of a vertical fall prevention device (2) according to a second embodiment of the present invention.

[0116] Referring to FIG. 9, a vertical fall prevention device (2) according to the second embodiment of the present invention may include an installation part (20), a tension adjustment part (21), and a guide part (22).

[0117] The installation part (20) may include an installation body, a first installation fixing part, a plurality of second installation fixing parts and a locking part.

[0118] A catch portion may be formed at the top of the installation body, and a first installation fixing portion may be formed in the central part of the installation body. For example, the distance between the first installation fixing portion (101) and the catch portion (103) of the vertical fall prevention device (1) according to the first embodiment of the present invention may be longer than the distance between the first installation fixing portion and the catch portion of the vertical fall prevention device (2) according to the second embodiment of the present invention. In other words, the catch portion of the vertical fall prevention device (2) according to the second embodiment of the present invention may be formed at a higher position.

[0119] According to the structural features of such a catch portion, the vertical fall prevention device (2) can be fixed to the crossbar (N) so that the rope (R) is caught at a higher position, and the vertical fall prevention device (2) can be utilized in a wider variety of work environments.

[0120] Additionally, the second installation fixing part is formed as a pair, and the pair of second installation fixing parts can each grip and fix different crossbars (N). That is, while the first installation fixing part is fixed to one crossbar (N), the pair of second installation fixing parts are each fixed to different crossbars (N), so that the vertical fall prevention device (2) can be more securely fixed to the crossbars (N).

[0121] The above description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention.

[0122] Accordingly, the embodiments disclosed in this invention are intended to explain, not limit, the technical concept of the invention, and the scope of the technical concept of the invention is not limited by these embodiments.

[0123] The scope of protection of the present invention shall be interpreted by the claims below, and all technical ideas within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention.

[0124] The modes for carrying out the invention are described together in the best mode for carrying out the invention above.

[0125] The present invention relates to a vertical fall prevention device that can be used to prevent a worker from falling by connecting to a rope within a workspace. The present invention is a device that can be installed on a structure with a crossbar formed while combined with a rope, and since it is applicable to various industrial sites and can be repeatedly implemented for the same purpose, it has industrial applicability.

Claims

1. A vertical fall prevention device installed on a structure having a plurality of rungs formed in a state combined with a rope, so as to prevent a worker from falling by connecting the worker to a rope in a workspace, An installation part connected to the above crossbar and on which a rope is installed; A tension adjustment unit connected to the crossbar, located below the installation part, and adjusting the tension of the rope; and It includes a guide part located between the above-mentioned installation part and the above-mentioned tension adjustment part, connected to the above-mentioned crossbar, and wrapping the above-mentioned rope to guide the arrangement of the above-mentioned rope. The above installation part is, An installation body located on one side of the above crossbar, formed along the vertical direction, and including an installation adjustment hole formed through the inside; A first installation fixing part formed on the above-mentioned installation body and fixed to the above-mentioned crossbar by gripping the above-mentioned crossbar; A second installation fixing part formed on the lower side of the first installation fixing part, with a portion penetrating the installation adjustment hole to adjust the height, and gripping the crossbar to fix it to the crossbar; and It includes a catch portion connected to the installation body so as to be located on the upper side of the first installation fixing portion, and on which one end of the rope is caught. The above tension adjustment unit is, An adjustment body located on one side of the above crossbar, formed along the vertical direction, and including an adjustment adjustment hole formed through the inside; A first adjustment fixing part formed on the adjustment body and fixed to the crossbar by gripping the crossbar; A second adjustment fixing part formed on the upper side of the first adjustment fixing part, with a portion penetrating the adjustment adjustment hole to adjust the height, and gripping the crossbar to fix it to the crossbar; and A vertical fall prevention device comprising a pulling part that is fixedly connected to the above-mentioned adjustment body and pulls the other end of the rope.

2. In Paragraph 1, The above-mentioned catch is, A locking body fixedly connected to the installation body so as to be located on the upper side of the first installation fixing part, and including a locking hole on the inside through which the rope passes; and With the rope passing through the catch hole, it includes a rotating part that rotates toward the catch hole with one side fixed to the catch body as a rotation axis, thereby catching one end of the rope. The above rotating part is, A rotatable part fixed to the above-mentioned locking body and rotatable toward the above-mentioned locking hole; and A vertical fall prevention device comprising a locking portion that extends from the rotating portion in a direction away from a fixed side and forms a spaced-out space on the inner side with a width smaller than the width of the locking hole.

3. In Paragraph 2, The above-mentioned catch portion is formed to protrude in pairs from the above-mentioned rotating portion, forming the above-mentioned gap between them, and A vertical fall prevention device in which one end of the above rope is caught on a pair of catch parts.

4. In Paragraph 1, The above-mentioned first installation fixing part is, A pair of first fixed bodies that move closer to or further apart from each other by rotating one side fixedly connected to the upper side of the above-mentioned installation body around a rotation axis; and The first installation fixing body is formed in one of the pair of first installation fixing bodies and penetrates and connects to the other of the pair of first installation fixing bodies so that the pair of first installation fixing bodies grips and fixes the crossbar, and includes a first installation connecting part. The above second installation fixing part is, A pair of second installation fixing bodies formed through the above installation adjustment hole, which adjust the height while moving along the above installation adjustment hole, and which move closer to or further apart from each other by rotating one side connected to the above installation body around a rotation axis; and A vertical fall prevention device comprising a second installation coupling part formed in one of the pair of second installation fixing bodies and penetrating and joining to the other of the pair of second installation fixing bodies so that the pair of second installation fixing bodies grip and fix the crossbar.

5. In Paragraph 4, The first installation coupling member is rotatable about one side connected to one of the pair of first installation fixing bodies, and the other side of the first installation coupling member is screw-coupled while penetrating the other of the pair of first installation fixing bodies. A vertical fall prevention device in which the second installation coupling part is rotatably connected to one of the pair of second installation fixed bodies on one side of which is rotatably rotated around a rotation axis, and the other side of the second installation coupling part is screw-coupled while penetrating the other of the pair of second installation fixed bodies.

6. In Paragraph 1, The above pulling part is, A fastening part, one side of which is connected to the other end of the above rope; A movable part formed through the other side of the above-mentioned fastening part, elastically coupled between the fastening part and the movable part, and capable of moving along the up and down direction; A pulling body having one side fixed to the adjustment body and the other side formed to pass through so as to pass through the moving part; and A vertical fall prevention device comprising a tightening part that tightens one end of the moving part penetrating the pulling body and moves the moving part in an up-and-down direction.

7. In Paragraph 6, The above moving part is, One side is connected to a part of the fastening part such that it is spaced apart from the inner lower surface of the fastening part at a certain distance, and the other side is inserted into the inner side of the adjustment body and is a movable part capable of moving along the fastening part; A rod extending downward from the lower surface of the above-mentioned moving part and penetrating the other side of the fastening part and the pulling body; and A vertical fall prevention device comprising an elastic portion disposed between the inner lower surface of the moving portion and the fastening portion, wrapping around a portion of the rod, and being compressed or released by the moving portion and the fastening portion.

8. In Paragraph 6, The above-mentioned first adjustment fixing part is, A pair of first adjustment fixed bodies that rotate around a rotation axis, with one side fixedly connected to the lower side of the above adjustment body, to move closer to or further apart from each other; and The first adjustment fixing body is formed in one of the pair of first adjustment fixing bodies and penetrates and connects to the other of the pair of first adjustment bodies so that the pair of first adjustment fixing bodies grips and fixes the crossbar, and includes a first adjustment coupling part. The above second adjustment fixing part is, A pair of second adjustment fixed bodies formed through the adjustment adjustment hole, which adjust the height while moving along the adjustment adjustment hole, and which rotate one side connected to the adjustment body around a rotation axis to move closer to or further apart from each other; and A vertical fall prevention device comprising a second adjustment coupling part formed in one of the pair of second adjustment fixing bodies and penetrating and joining to the other of the pair of second adjustment fixing bodies so that the pair of second adjustment fixing bodies grip and fix the crossbar.

9. In Paragraph 1, The above guide part is, A guide body located on one side of the above crossbar; A gripping portion formed from the guide body toward the rope and gripping the rope; A pair of guide fixed bodies that rotate around a rotation axis on one side fixedly connected to the guide body to move closer to or further apart from each other; and A vertical fall prevention device comprising a guide coupling portion formed in one of the pair of guide fixing bodies and penetrating and joining to the other of the pair of guide fixing bodies so that the pair of guide fixing bodies grip and fix the crossbar.

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