KR20160142080A - Vertical ladder - Google Patents

Abstract

The specification discloses a self-assembly vertical ladder which is assembled by a coupling member. The self-assembly vertical ladder according to the present invention comprises: a plurality of fixing brackets (30) which are coupled with a wall surface of a ship; support poles (10) which are assembled with the fixing brackets by coupling members (70) and arranged to be parallel with one another in a vertical direction on a ground surface; a plurality of footholds (20) which are arranged laterally between the support poles (10) and have polygonal cross-sections; a foothold bracket (40) which is fixed on the support poles (10) by the coupling members (70), wherein an end of the foothold (20) is fixed on the foothold bracket (40) by the coupling member (70); and a nonslip cover (50) having an inner diameter, which corresponds to cross-section shapes of the footholds (20) such that the nonslip cover is covered on outer peripheries of the footholds (20), wherein a plurality of nonslip bumps (51) are formed on an outer periphery of the nonslip cover (50) to prevent slips. According to the present invention, deformation is prevented during an assembly process, and assembly and maintenance of the ladder are facilitated.

Description

Prefabricated vertical ladder {VERTICAL LADDER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prefabricated vertical ladder, and more particularly, to a prefabricated vertical ladder that can be easily assembled in the field to be suitable for an installation environment in which a vertical ladder is installed, and is easy to repair and replace during use.

Generally, a ladder is necessary to get to the high place to work on the high place. At this time, there is a separate ladder to carry around while working, but where there is frequent inspection and maintenance, a vertical ladder is installed and used for work.

Some of these vertical ladders may be sloped or vertically installed in ships or large tanks. A vertical ladder installed in a vessel or a large tank is composed of a metal ladder and has a structure in which a plurality of foot plates arranged in a transverse direction are fixed by welding between two pipe supports arranged in a vertical direction. These vertical ladders are also welded to the points to be mounted.

However, since the vertical ladder installed in such a conventional vessel or a large tank is configured to be fixed by welding, the installation work is difficult, the ladder is deformed due to welding during operation, and once the installation is completed, It is difficult to repair it because the whole must be replaced.

Korean Registered Utility Model 20-0464269 (Vertical ladder for high altitude work 2012.12.14.)

SUMMARY OF THE INVENTION It is an object of the present invention, which has been made in view of the above, to provide a prefabricated vertical ladder that is easy to install and disassemble.

It is still another object of the present invention to provide a prefabricated vertical ladder which is easy to be partially replaced and repaired and which is adapted to replace parts according to an installation environment to increase usability.

It is still another object of the present invention to provide a prefabricated vertical ladder that prevents electric shock when used on a ship, prevents slippage, and prevents injury to a hand caused by a slip prevention projection.

It is still another object of the present invention to provide a prefabricated vertical ladder that can easily be assembled in the field in advance, and can be manufactured in a single product so as to increase the mass production and operation speed, thereby reducing manufacturing costs.

To achieve the above object, the present invention provides a vertical ladder comprising: a plurality of fixing brackets coupled to a wall of a ship; A bracket assembled to the fixing bracket with a fastening member and arranged in a direction perpendicular to the ground; A plurality of foot plates arranged in a transverse direction between the respective supports and forming a polygonal section; A foot bracket fixed to the strut with a fastening member in a state where an end of the foot is fixed by a fastening member; And an anti-slip cover having a plurality of slip prevention protrusions formed on an outer circumferential surface thereof to prevent slippage, the slip prevention cover having an inner diameter corresponding to a cross-sectional shape of the foot plate so as to be covered by the outer circumferential surface of the foot plate.

Preferably, the foot plate is formed with an inner diameter corresponding to the cross-sectional shape of the foot plate so as to be covered by the outer circumferential face of the foot plate, and is provided at both ends of the preventive cover, .

More preferably, the handle cover is made of an insulating material so as to prevent an electric shock accident.

More preferably, the footrest bracket is provided with a locking protrusion on which the outer circumferential surface of the footrest is seated to prevent rotation of the footrest.

In addition, more preferably, the locking protrusions are provided with a plurality of footrest brackets which are provided at different installation angles of the locking protrusions so as to change the assembling angle of the footrests, and are selectively installed in the supporting posts.

More preferably, the surface of the non-slip cover is coated with a resin having a water-repellent property and a oil repellent property on the surface of the non-slip cover by adhering fine-grain irregular protrusions including ceramic, metal or a mixture of ceramic and metal.

As described above, the assembled vertical ladder according to the present invention has a structure in which each part is assembled by a fastening member to prevent deformation due to welding, easy transportation in a disassembled state when installed on a ship, .

In addition, since deformation due to welding is prevented during installation on a ship, and the generation of impurities due to welding is prevented, an operation can be performed in a pleasant condition.

Also, it is possible to provide a handle cover made of an insulating material when installed on the electric pole, so that an electric shock accident can be prevented, and safety is improved.

In addition, since the slip-proof cover 50 can be selectively mounted on the vertical ladder installed at a place where slippage may occur, it is possible to prevent an accident caused by slipping, and at the same time, It is possible to prevent scratches on the palm caused by the projections when gripping the foot plate 20 by hand, so that safety is improved.

In addition, it is possible to manufacture a large number of assembly parts in advance, thereby improving the productivity. In addition, it is possible to improve the mass production and speed of the coating process by separately painting, and to reduce the production cost and the labor cost of coating.

FIG. 1 is a perspective view showing a prefabricated vertical ladder according to a preferred embodiment of the present invention,
FIG. 2 is a side view of the vertical ladder shown in FIG. 1,
Fig. 3 is a front view showing the vertical ladder shown in Fig. 1,
Fig. 4 is a cross-sectional view showing a portion "AA" shown in Fig. 3,
5 is a cross-sectional view showing a portion "BB" shown in Fig. 3,
6 is a sectional view showing a state where a footrest is mounted on a fixing bracket;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a prefabricated vertical ladder according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Here, the shape, size, ratio, angle, number and the like shown in the accompanying drawings are schematic and may be modified somewhat. 2) Since the drawing is shown by the line of sight of the observer, the direction or position to explain the drawing can be variously changed according to the position of the observer. 3) The same reference numerals can be used for the same parts even if the drawing numbers are different. 4) If 'include', 'have', 'have', etc. are used, other parts can be added unless '~ only' is used. 5) Numerals can also be interpreted as described in the singular. 6) Even if the shape, size comparison, positional relationship, etc. are not described as 'weak or substantial', it is interpreted to include the normal error range. 7) 'after', 'before', 'after', 'after', and 'after' are not used to limit the temporal position. 8) The terms 'first, second, third', etc. are used selectively, interchangeably or repeatedly for convenience of division, and are not construed in a limiting sense. 9) If the positional relationship of the two parts is described as 'on top of', 'on top', 'on bottom', 'on side', 'on side' and so on, This can also be located. 10) When parts are electrically connected to '~ or', parts are interpreted to include not only singles but also combinations, but parts are interpreted solely if they are electrically connected to '~ or'.

FIG. 1 is a perspective view showing a prefabricated vertical ladder according to a preferred embodiment of the present invention, FIG. 2 is a side view showing the vertical ladder shown in FIG. 1, and FIG. 3 is a front view showing a vertical ladder shown in FIG. 4 is a cross-sectional view of the portion "AA" shown in FIG. 3, FIG. 5 is a cross-sectional view of the portion "BB" shown in FIG. 3, Fig.

As shown in FIGS. 1 to 6, the assembled vertical ladder according to the present invention includes a plurality of fixed brackets 30 mounted on a wall of a ship, respective struts 10 installed on the fixed bracket 30, And a plurality of foot plates (20) arranged in the transverse direction between the foot plates (10).

The fixing bracket 30 may be structured such that it is screwed to the wall of the ship or welded thereto. Or a structure in which a fixing bracket 30 is installed in a structure integrally formed with a wall of an existing ship.

The fixing bracket 30 is composed of a flat plate-like horizontal portion 32 coupled to the wall of the ship and a vertical portion 31 vertically protruding from the central portion of the horizontal portion 32. The vertical portion 31 is provided with a plurality of screw holes 33. A bolt constituting a fastening member (70) is inserted into the screw fastening hole (33), and a nut is fastened.

The column 10 has a bar shape having a predetermined length, and the length of the column 10 may be varied according to the work environment to be installed, and may be shared by each length unit. That is, the columns 10 having a length of 1 m, 2 m, 5 m, and 10 m may be grouped, and the columns 10 may be combined according to the installation conditions.

The support (10) is provided with a plurality of fastening holes through which fastening members (70) pass. A structure in which a screw is machined on the inner peripheral surface of the fastening hole to directly fasten the bolt can be applied. The support (10) is provided with a through hole through which the footrest (20) passes. The penetrating through-holes of the footrest 20 may be formed corresponding to the outer circumferential surface of the footrest 20. The shape of the through hole is not limited to the shape corresponding to the outer peripheral surface of the foot plate 20 and may be formed larger than the sectional shape of the foot plate 20 so that the foot plate 20 can be inserted. The column 10 is formed of a plate-like plate, but a bar or a rectangular pipe may be used.

The footrests 20 are arranged in a plurality in the lateral direction in the support 10 so that the user can grasp them by hand or step on their feet. The footrest 20 is formed into a rod shape having a polygonal cross section. But it is also possible to use a rod having a pentagonal hexagonal polygonal cross section or a rod having a circular cross sectional shape.

A bolt is fastened to the center of both ends of the foot plate 20, and a female screw is formed on the inner diameter of the fastening hole 21 so that bolts can be fastened.

The foot bracket 40 has a flat plate shape having a predetermined area. In the central region of the foot bracket 40, a through hole is formed through which a bolt for fixing the foot plate 20 passes. A through hole 41 is formed around the through hole of the foot bracket 40 through which a bolt for a fastening member 70 for fixing the foot bracket 40 to the foot 10 is passed.

As shown in FIG. 6, the foot bracket 40 is provided with a protrusion 42 for supporting a corner portion of the outer circumference of the foot plate 20. 6 (a), the latching protrusion 42 is protruded so that the corner of the footrest 20 can be inclined at an angle of 45 degrees so as to face the upper end. 6, a locking protrusion 42 is protruded so that one side of the foot plate 20 is horizontal as shown in FIG. 6. When the user desires, the position where the locking protrusion 42 is formed It is possible to form the pedestal brackets 40 having different positions at which the latching protrusions 42 are formed and to form the footrests 20 at different installation angles according to the environment of the installation site The pedestal 20 provided on one support 10 may be configured to have a different installation angle from that of the pedestal 20 as shown in Figure 6 (a) It is possible to mount such that the corner portion is mounted facing the top and the other row is directed so that the flat portion of the foot plate 20 faces upward as shown in Fig. 6 (b).

For example, as shown in FIG. 6 (a), the edge of the footrest 20 is mounted so that the edge of the footrest 20 faces upward, and the user temporarily stays 6 (b), the flat portion of the footrest 20 can be mounted so as to face the upper end.

A non-slip cover 50 and a pull cover 60 are mounted on the outer circumferential surface of the foot plate 20. A non-slip cover 50 is mounted on a central region of the foot plate 20 and a pull cover 60 is mounted on both ends of the non-slip cover 50, respectively.

The inner diameter of the non-slip cover 50 is formed to correspond to the cross-sectional shape of the foot plate 20. As shown in FIG. 4, the inner diameter of the anti-slip cover 50, which covers the foot plate 20 having a rectangular cross-sectional shape, is formed in a square shape to prevent the anti-slip cover 50 from rotating.

A plurality of anti-slip projections 51 are formed on the outer circumferential surface of the anti-slip cover 50. The slip prevention protrusion 51 is an object for preventing the user from slipping when the foot is stepped on, and may be protruded in various forms other than the semicircular shape.

The outer peripheral surface of the non-slip cover 50 is coated with fine uneven protrusions made of fine particles including ceramic, metal, or a mixture of ceramic and metal. A resin having water repellency and oil repellency is applied to its surface.

An inner diameter corresponding to the cross-sectional shape of the foot plate 20 is formed in the handle cover 60. As shown in FIG. 5, the inner diameter of the handle cover 60, which is placed on the foot plate 20 having a rectangular cross-sectional shape, is formed in a square shape to prevent the handle cover 60 from rotating. The outer peripheral surface of the handle cover (60) has a round shape and is easy to grasp by hand. The handle cover (60) is made of an insulating material so as to prevent an electric shock accident.

The installation procedure of the assembled vertical ladder, which is a preferred embodiment of the present invention, is as follows.

The slip prevention cover 50 and the handle cover 60 are fitted to the foot plate 20 in a state in which a plurality of foot plates 20 are arranged between the pillars 10. The non-slip cover 50 may be provided with a non-slip cover 50 formed only of the slip prevention protrusion 51 or may be provided with a non-slip cover 50 May be mounted. In some cases, the non-slip cover 51 may be mounted with a non-slip cover 50 coated with resin and fine irregular projections. As described above, it is possible to provide various kinds of anti-slip cover 50 and selectively install any one of them.

In addition, when abrasion occurs on the outer circumferential surface of the non-slip cover 50 for a long time, it is possible to remove the fixing bracket 30 and replace only the non-slip cover 50 installed on the foot plate 20 of the corresponding section, It is easy.

Likewise, the handle cover 60 can be selectively installed on the foot plate 60. When the handle cover 60 is damaged, it is possible to separate the fixing bracket 30 and replace only the handle cover 60 provided on the foot plate 20 of the corresponding section, thus facilitating maintenance.

When the slip prevention cover 50 and the handle cover 60 are installed on the foot plate 20, the foot plate 20 is inserted into the through hole of the support post 10, (40). The footrest bracket 40 to which the footrest 20 is fixed is fixed to the support 10 by tightening the bolts again.

The post 10 on which the footrest 20 is installed is fixed to the fixing bracket 30 provided on the wall of the ship in advance.

As described above, the assembled vertical ladder according to the present invention can be easily assembled and disassembled, and the slip prevention cover 50 can be mounted on the foot plate 20, thereby preventing a slip accident. In addition, it is possible to prevent the palm from being damaged due to the user holding the non-slip cover 50 by attaching the pull cover 60. In addition, since each part is assembled by using a fastening member made of bolt, when part of the parts is damaged, maintenance can be easily performed because only part of the parts can be replaced.

Further, the assembled vertical ladder according to the present invention is of a prefabricated type, and it is possible to selectively install the non-slip cover 50 and the pull cover 60. For example, in a slippery environment, only the slip-proof cover 50 may be provided on the entire foot plate 20. In an environment where electric shock may occur, only the handle cover 60 is provided on the entire foot plate 20, Can be prevented. At this time, the length of the nonskid cover 50 and the knob cover 60 can be adjusted. Preferably, the nonskid cover 50 has a length twice as long as the handle cover 60, It is preferable that two protection covers 50 are provided or the handle cover 60 can be installed on the back.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

10: Holding
20: Scaffolding
30: Fixed bracket
40: foot bracket
42:
50: Non-slip cover
60: Handle cover
70: fastening member

Claims (6)

A plurality of fixing brackets (30) coupled to a wall surface of the ship;
A strut (10) assembled to the fixing bracket by a fastening member (70) and arranged in a direction perpendicular to the ground;
A plurality of foot plates 20 arranged in a transverse direction between the respective supports 10 and forming a polygonal section;
A foot bracket 40 fixed to the support 10 with a fastening member 70 in a state where an end of the footrest 20 is fixed by a fastening member 70;
A slip prevention cover 50 having an inner diameter corresponding to the sectional shape of the foot plate 20 so as to be covered on the outer circumferential surface of the foot plate 20 and a plurality of slip prevention protrusions 51 for preventing slippage, A prefabricated vertical ladder comprising; The footrest according to claim 1, wherein the footrest (20)
A handle cover 20 having an inner diameter corresponding to the cross-sectional shape of the foot plate 20 so as to be covered on the outer circumferential surface of the foot plate 20 and formed at both ends of the preventive cover 50, 60). ≪ / RTI > The assembled vertical ladder according to claim 2, wherein the handle cover (60) is made of an insulating material to prevent electric shock. The prefabricated vertical ladder according to claim 1, wherein the foot bracket (40) is provided with a locking protrusion (42) on which an outer peripheral surface of the footrest (20) is seated to prevent rotation of the footrest (20). The footrest according to claim 4, wherein the locking protrusions (42) are provided with a plurality of footrest brackets (40) provided at different installation angles of the locking protrusions (42) so as to change an assembling angle of the footrest (20) A prefabricated vertical ladder optionally installed in the support (10). The method according to claim 1, wherein the outer surface of the non-slip cover (50) is provided with an uneven protrusion of fine particles including ceramic, metal, or a mixture of ceramic and metal and is coated with a resin having water repellency and oil repellency Prefabricated vertical ladder.

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