KR20200066425A - Expandable bucket safety handrail structure with foldable structure - Google Patents

Abstract

The present invention relates to an expandable sky bucket safety railing structure having a folding structure. The safety railing structure of the present invention is configured in a form of surrounding the outside of an aerial platform, which is known as a sky bucket and where an operator boards for aerial operation, prevents the operator and loads from falling. The safety railing structure can be changed in size according to expansion and contraction of a scaffolding portion, which is an operation space where the operator is located, without being removed, and partially opened and closed for access and loading/unloading. The expandable sky bucket safety railing structure having the folding structure has a floor plate (110), a rear railing (120), a pair of first double hinge units (151), a pair of first extended railings (150), a pair of second double hinge units (161), and a pair of second extended railings (160).

Description

{Expandable bucket safety handrail structure with foldable structure}

The present invention relates to a sky bucket safety railing structure, and in detail, it is configured in a form that surrounds the outside of the sky platform, aka sky bucket, where the operator boards for aerial work, to prevent the worker from falling and falling of the load, but remove It relates to an expandable sky bucket safety railing structure with a folding structure that can be partially opened and closed for entering and exiting and loading and unloading, as well as for changing and resizing according to the expansion and reduction of the scaffolding part, which is the working space where the worker is located.

For work at heights where ladders cannot be used, such as walls of high-rise buildings and structures, glass work, or lifting and unloading of cargo including signage work, aerial work vehicles equipped with aerial platforms and aka sky buckets are used.

Such aerial platforms include a rectangular bottom plate having a predetermined size, a rear railing that is erected and installed at a predetermined height from the rear end of the bottom plate, and a left railing and a right railing installed on both sides of the bottom and rear railings. And, it is configured in a form in which the outside is enclosed through a front railing of a predetermined height that is hinged to be rotatable in the front-rear direction at the front end of the bottom plate.

The aerial platform of such a conventional structure is usually manufactured in a form that the left handrail and the right handrail are fixed with respect to the bottom plate and the rear handrail, so there is a problem that the working range is limited, and it is difficult to accommodate when the size of the mounted tool or cargo is large. As the work space is reduced, there is a problem that the work efficiency is greatly reduced due to frequent movement of the aerial platform.

Accordingly, the aerial platform has been developed to expand the working space by constructing the right and left railings and rear railings to be flush with the floor plate. In this case, as the railings for safety are eliminated, the risk of falling of workers and loads increases. A separate railing structure must be added in accordance with the regulations.

However, these additional handrail structures not only increase the weight of the aerial platform, but also have a structure that can be removed and opened as necessary, so that it can be used without mounting when working in a detached state while driving an aerial vehicle, or various inconveniences during operation. For this reason, there was still a risk of falling accidents during the work because it was used in combination in an open or incomplete state.

In particular, there is a great risk in the process of lifting heavy materials, such as attaching glass or attaching marble to the walls of buildings, and unstable, such as shaking the worktable away from the target structure when moving the loaded weight while the operator is on board. As conditions arise, the incomplete handrail structure due to the expansion of the workbench has a problem that can lead to a serious accident, and a safety rail with a more stable and robust structure is urgently required.

Registered Utility Model Publication No. 20-0315891 (2003.05.29)

The present invention was created to solve the problems as described above, and the object of the present invention is to prevent the dropping of workers and loads forward and backward and left and right in a form that completely surrounds the outside of the sky bucket, but with a structure that does not remove. It is to provide an expandable sky bucket safety railing structure having a foldable structure in which a size change is made in response to expansion and contraction of the scaffolding part and a partial opening for loading and unloading of the load is possible.

For the above object, the present invention relates to a safety railing structure for an aerial platform, a bottom plate serving as a scaffold and forming a working space; A rear railing formed to have a predetermined height at a rear end of the bottom plate; It consists of a vertical bar that is formed with a hinge that can be rotated forward to one side and a hinge that can be rotated backward to the other side, a pair of first double hinge portions each hinge being coupled to both ends of the rear railing; A pair of first extension rails having one end coupled to the other hinge of the first double hinge part and having a length corresponding to the front-rear direction of the bottom plate; A pair of second double-hinged portions made of the same structure as the first double-hinged portions, wherein one hinge is coupled to the other end portion of the first extended railing; A pair of second extension rails, one side of which is coupled to the other hinge of the second double hinge portion; It is provided, wherein the first extension railing is erected on the left and right end portions of the bottom plate, respectively, and the second extension railing is built on the front end portion of the bottom plate to prevent falling.

In addition, a front railing hinged to the front of the bottom plate so as to be rotatable vertically from the horizontal direction; A pair of lateral railings having hinges coupled to the left and right ends of the bottom plate so as to be rotatable vertically from the horizontal direction, respectively, and having extensions protruding to a length corresponding to the height of the front railing; Including, the first extension railing is configured to have a length corresponding to the height of the lateral railing, and made of the same structure as the first double hinge portion, one hinge, the other end portion of the second extension railing A pair of third double hinge portions coupled to each other; A pair of third extension rails, one side of which is coupled to the other hinge of the third double hinge portion; It is made of the same structure as the first double hinge portion, a pair of fourth double hinge portions each hinge is coupled to the other end of the third extension rail; A pair of fourth extension rails, one of which is coupled to the other hinge of the fourth double hinge part; Further comprising, the front railing and lateral railing and the expansion portion is horizontal and the first expansion railing is in a state where the working space is extended, and the second expansion railing and the third expansion railing are in the left and right directions of the working space. At the end portion, the fourth extension railing may be configured to stand on the front end portion of the work space to prevent falling.

In this case, the third extension railing is preferably configured to be coupled through a hinge formed to fold inwardly with the first foldable portion and the second foldable portion having a relatively shorter length than the first foldable portion.

Further, the fourth extended railing is preferably configured such that the third foldable portion and the fourth foldable portion, which are divided into two parts, are interposed between the auxiliary double hinge portions having the same structure as the first double hinge portion.

In addition, the locking means is formed in the hinge portion is selectively installed to limit the rotation of the hinge, the front railing and the side railing and the expansion portion is perpendicular to the work space is reduced and the first expansion railing is located on the left and right, respectively The second expansion rail and the third expansion rail and the fourth expansion rail further comprises a fixing means for holding the overlapping state in the front.

The present invention is a structure that is integrated into the bucket and is not removed, and expansion and contraction are made in response to expansion and contraction of the scaffolding part to prevent falling around the outside, and sequentially open and close for loading and unloading and unfolding when not in use. The volume can be reduced during storage, greatly improving work efficiency and safety.

1 is a perspective view according to the reduction of the working space according to an embodiment of the present invention,
2 is a plan view according to the reduction of the working space according to an embodiment of the present invention,
Figure 3 is a perspective view according to the expansion of the working space according to an embodiment of the present invention,
4 is a plan view according to the expansion of the working space according to an embodiment of the present invention,
Figure 5 is a perspective view of a state in which the front is opened when the working space is expanded according to an embodiment of the present invention,
6 is a plan view of a state in which the front surface is opened when the working space is expanded according to an embodiment of the present invention.

Hereinafter, the structure of the extended sky bucket safety railing structure having the folding structure of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a work space reduction according to an embodiment of the present invention, FIG. 2 is a plan view of a work space reduction according to an embodiment of the present invention, and FIG. 3 is a perspective view of a work space expansion according to an embodiment of the present invention , FIG. 4 is a plan view according to an expansion of a work space according to an embodiment of the present invention, FIG. 5 is a perspective view of a state in which a front surface is opened when the work space is expanded according to an embodiment of the present invention, and FIG. 6 is a view according to an embodiment of the present invention It is a plan view with the front side open when the working space is expanded.

Basically, the sky bucket is provided with a bottom plate 110 to allow an operator to board or load cargo on the upper side, and is installed at a high-altitude vehicle under the bottom plate 110 to increase the height of the bottom plate 110. And it is configured to maintain the horizontal during operation while the boom for position adjustment is connected.

The bottom plate 110 is combined with various types of frames for reinforcing the load together with a generally rectangular aluminum plate, and the front and rear rails 130, the rear railing 120, and the side railing 140 respectively. This is formed so as to prevent the worker from falling during aerial work.

Specifically, a rear railing 120 is installed at a rear end of the bottom plate 110 to have a predetermined height and a length corresponding to the left and right lengths of the bottom plate 110. The predetermined height is an appropriate height that can prevent a worker from falling and follows the regulations, and is usually manufactured at a height of 1 to 1.2 meters. The rear railing 120 may also be installed to be hinged with the bottom plate 110 so that the bottom plate 110 can be vertically erected from the same horizontal state as the bottom plate 110, but for structural safety, the bottom plate 110 ) It is desirable to be fixed to the rear end vertically.

The rear railing 120 may be formed of a plate material, but may be manufactured in a form in which one or more frames in the longitudinal and transverse directions are installed inside the square frame for structural reinforcement and weight reduction. A perforated plate or a mesh plate that can be prevented may be installed.

At this time, in order to prevent the left and right sides and the front from falling, the first and second expansion rails 150 and the second and second expansion rails 160 are configured to be rotated to the left and right sides of the rear railing 120 to open the railing part when necessary. It is possible to move in and out of the load or load, but the first expansion rail 150 and the second expansion rail 160 are configured to be removable.

That is, the first extended railing 150 is formed to have a length corresponding to the front-rear direction of the bottom plate 110 to prevent the fall and the left and right sides of the bottom plate 110, respectively, and continuously coupled thereto The second extended railing 160 prevents the fall by blocking the front of the bottom plate 110.

For this structure, the second extended railing 160 has a length of 1/2 of the left and right lengths of the bottom plate 110, but the left and right second extended railings 160 contact each other and the bottom plate ( It is configured to block the front of the 110, the width of the rear railing 120 is configured to match or approach the width of the bottom plate 110.

In the present invention, one end of the first extension rail 150 is coupled to the left and right ends of the rear rail 120 so as to be rotatable, and the second extension rail 160 is respectively connected to the first extension rail 150. It can be said that it is an important feature to use a hinge of a double structure in combination to be rotatable to the other side.

First, a vertical bar (B) is provided with a hinge capable of pivoting forward to one side and a hinge capable of pivoting backward to the other side, but one pair of hinges is coupled to both ends of the rear railing 120, respectively. With the double hinge part 151 configured, one side of the first extension rail 150 is coupled to the other hinge of the first double hinge part 151.

At this time, the vertical bar (B) is basically made of the same or close dimensions to the thickness of the first extension rail 150, preferably, the rear rail and the first extension rail 150 and the second extension rail 160 ) Are all made of the same thickness as the width of the vertical bar (B).

The first double hinge part 151 helps to rotate between the rear railing 120 and the first extended railing 150, but supports free rotation in the front-rear direction. That is, in the case of the conventional single hinge, not only the rotational direction is restricted, but also a large gap and the entire space due to the hinge coupling structure in a structure in which a plurality of handrails are folded as in particular, is inevitably required.

On the other hand, in the present invention, by adopting the same structure as the first double hinge part 151, it is stable in some folding, such as deformation of various working spaces and opening and closing in the form of a door, and has many advantages in terms of space utilization.

The connection between the first extension rail 150 and the second extension rail 160 is also made through the second double hinge unit 161 having the same structure as the first double hinge unit 151. That is, one hinge of the second double hinge portion 161 is coupled to the other end of the first extension rail 150, and the other hinge is coupled to one side of the second extension rail 160.

Through this structure, the first extension railing 150 is erected on the left and right ends of the bottom plate 110, respectively, and the second extension railing 160 is erected on the front end portion of the bottom plate 110. It prevents the worker or load from falling, and can open a part without the operator's entry or removal of the railing structure when loading or unloading the load.

That is, a pair of second extended railings 160 are utilized in the form of completely folding to the left and right, respectively, or the first extended railing 150 and the second extended railing 160 are folded and stored at the rear side of the rear railing. It prevents problems such as working without a safety rail for reasons of inconvenience such as a safety rail of a removal method.

In this structure, the sky bucket according to the present invention is configured to expand the work space by expanding the front railing 130 and the side railing 140 to the outside and using them as a work platform. Such a work space extension structure can be referred to as a structure of a conventional sky bucket.

Specifically, the front rail 130 is hinged to the front end of the bottom plate 110 so as to be rotatable vertically from the horizontal direction. That is, the front railing 130 may serve as a safety railing during work in a vertically upright position, but may be extended in a horizontal direction to extend the floor plate 110 and the extended working space. At this time, the front railing 130 is manufactured to have an appropriate height to prevent a fall in a vertically erected state, and is usually composed of a relatively lower height than the rear railing 120.

Side railings 140 are installed symmetrically at the left and right ends of the bottom plate 110, respectively. Specifically, the lateral railing 140 on the left is hinged to the left end of the bottom plate 110 so as to be able to rotate vertically upward from the horizontal direction, and protrudes to a length corresponding to the height of the front railing 130 as a front end. It is provided with an extension 141 and forms an extended rectangular working space without an empty space.

Similarly, the lateral railing 140 of the same type is hinged to the right end of the bottom plate 110 so as to be able to rotate vertically upward from the horizontal direction, and protrudes to a length corresponding to the height of the front railing 130 as a front end. A space having a possibility of falling is removed through the extension 141.

At this time, the expansion portion 141 is hinged to the side railing 140, as in the accompanying drawings, the side railing 140 is erected vertically with respect to the bottom plate 110 with the front railing 130 It is configured to be rotated outward in a state and folded to the side railing 140 in a form of overlapping.

As a result, the expansion unit 141 unfolds the front railing 130 and the lateral railings 140 on the left and right sides, that is, to make it horizontal, thereby filling the left and right front corner portions to secure a rectangular working space. In order to increase the safety, the structure of substantially the same effect is realized by hinged coupling to the left and right sides of the front railing 130 rather than the hinged coupling of the extension 141 to the lateral railing as shown in the accompanying drawings. It can be revealed.

As described above, the front railing 130 and the lateral railing 140 can be expanded to the outside to expand the work space by utilizing the base plate 110 as a work platform in an extended form, but in this case, the railing disappears and the worker and cargo fall. The risk is very high.

Conventionally, the front railing and the side railing 140 and the expansion unit 141 are in use in a state where only the rear railing 120 and the front railing 130 and a pair of side railings 140 are provided on the bottom plate 110. Since it was possible to lie down and widen the working space, it was necessary to provide a separate removable railing structure, and there was a risk due to carelessness, installation of a separate railing structure, or unstable installation.

Accordingly, there is a need for a safety railing in a state that cannot be removed from the industrial safety management agency, and in the present invention, in response to the expansion of the working space, it is continuously formed from the rear railing to freely fold or unfold as a form that cannot be removed. It is constructed so that it can be used as a door if necessary and protected from falling at all times by having multiple expansion rails.

As described above, in the case of the first expansion railing 150 and the second expansion railing 160, the working space is reduced, that is, when the working space is expanded as it is configured to wrap the bottom plate 110 around both sides and the front. A third extension rail 170 and a fourth extension rail 180 to protect the space to be added are additionally installed.

At this time, basically, the first extended railing 150 is configured to have a length corresponding to the height of the lateral railing 140, and the rear along with the rear railing 120 while the side railing 140 is laid sideways. Block and protect, the second extension rail 160 is partially blocked on both sides.

The third extended railing 170 protects the second extended railing 160 together with the rest of both sides, and the fourth extended railing 180 protects the entire extended working space by blocking it.

Similarly, the second extended railing 160 and the third extended railing 170 are connected through a third double hinged part 171 having the same structure as the first double hinged part 151. That is, one hinge of the third double hinge portion 171 is coupled to the other end of the second extension rail 160, and the other hinge is coupled to the third extension rail 170.

The third extension rail 170 and the fourth extension rail 180 are also connected through a fourth double hinge unit 181 having the same structure as the first double hinge unit 151. That is, one hinge of the fourth double hinge portion 181 is coupled to the other end of the third extension rail 170, and the other hinge is coupled to the fourth extension rail 180.

Through this, the front railing and the side railing 140 and the expansion unit 141 are horizontal and the first extended railing 150 is rearward along with the rear railing 120 while the working space is expanded. The 2nd extension rail 160 and the 3rd extension rail 170 are formed at the left and right ends of the working space, and the 4th extension rail 180 is erected at the front end of the working space to surround the working space. Will be prevented.

As described above, as the work space is extended by laying the side railing 140, the left and right fourth extension rails 180 block and protect the front, and for this, the fourth extension rails 180 are expanded. It consists of two divisions of the front of the workspace.

In this case, as the left and right lengths of the substantially extended work space become longer, the length of the fourth extension rail 180 also becomes longer, and when it is rotated outward, there is a discomfort due to the inconvenience and wide rotation section required. Furthermore, as mentioned above, when the lateral railing 140 and the front railing 130 are erected, the fourth extended railing 180 from the first extended railing 150 may be folded to store more space than necessary.

Accordingly, in the present invention, the fourth extended railing 180, the third foldable portion 182 and the fourth foldable portion 183, which are divided into two parts, as shown in the accompanying drawings, and the first double hinge portion 151, It is preferable that the auxiliary double hinge portion 184 made of the same structure is configured to be coupled therebetween.

In addition, in response to the reduction of the working space, the side railing 140 and the front railing, which extend from the first expansion rail 150 to the fourth expansion rail 180, must be folded outwards and partially opened. Accordingly, the third extended railing 170 is also preferably divided into two parts.

At this time, in the case of the fourth extended railing 180, the third foldable portion 182 and the fourth foldable portion 183 may be divided in half, but in the case of the third extended railing 170, a folding operation is performed. In consideration, it is preferable that the first foldable portion 172 and the second foldable portion 173 having a relatively shorter length than the first foldable portion 172 are configured to be coupled through a hinge formed to be foldable inward. .

At this time, it is obvious that the folding should be performed from the first extension rail 150 to the fourth extension rail 180 to be fixed in a form surrounding the work space, and fixation may be performed in various ways.

To this end, in the present invention, the locking means 191, which is formed on the part where the hinge is installed, and selectively restricts the rotation of the hinge, and the front railing 130, the side railing 140, and the extension 141 are vertically operated. The space is reduced and the second extension rail 160, the third extension rail 170, and the fourth extension rail 180 are overlapped from the side or in the front while the first extension rail 150 is located on the left and right sides respectively. It is provided with a fixing means for holding to maintain the state.

The locking means 191 is a pair of fixed tube 192 coupled in the longitudinal direction to each structure coupled to one and the other of the hinge, and both ends are inserted into the fixed tube 192 at the same time in the form of'∩' It may be made of a fixture (193), it is possible to prevent the loss of the fixture (193) by forming a protrusion so as not to escape the fixing tube 192 at the end in a state in which one part of the fixture (193) is relatively long.

The fixing means 194 is similarly provided with a fixing tube 192 for each corresponding position in a state where each of the extended railings is folded, and a'∩' type fixture 193 formed with a width that can be inserted into the selected fixing tube 192. It may be provided. In this case, the width of the fixture provided in the fixing means 194 is wider than the fixture provided in the locking means 191.

In addition, a protrusion is formed at the lower end of the fourth extension rail 180 from the first extension rail 150, and the bottom plate 110 and the side rails 140 and the front rail 130 are laid down. A more stable use is possible by forming a groove corresponding to the protrusion in the contact portion from the first extension rail 150 to the fourth extension rail 180 so as to be easily fixed at the correct position.

Such an extended railing structure may be installed in a form in addition to a conventional sky bucket, or may be newly manufactured in a form that an extended railing is installed on a rear railing.

Through the structure according to the present invention, an extended railing in a form that is not detached is always provided, so it is possible to effectively prevent safety such as a fall and fall. At this time, as the four sides of the work space are blocked by expansion rails, the rails must be crossed when entering and exiting the worker.

In constructing the door part, it is preferable to apply a method of opening and closing a part of the extended railing in a hinged manner or forming a doorway in a state in which the extended railing is fixed and maintained.

To this end, a pair of vertical frames having a vertical direction at a selected position, such as the fourth extended railing 180, is installed to have a space at which the operator can enter, and horizontal frames in the horizontal direction cross the installed vertical frames horizontally. However, the horizontal frame is installed so as to be able to slide up and down from the central portion to the upper portion of the vertical frame.

That is, the vertical frame is composed of a square tube or a pipe, and a support structure capable of moving up and down is wrapped around the vertical frame at both ends of the horizontal frame, and a moving range is proposed from the lower and upper ends of the horizontal frame to the vertical frame. It is configured to form a protrusion or to be supported through a frame formed in the lateral direction.

Through this, the horizontal frame is lowered by its own weight, and the doorway is always blocked, and if necessary, it can be lifted to allow the worker to enter and exit the floor plate 110, thereby maintaining the state of safety railing at all times.

Although the present invention has been described with reference to the accompanying drawings and preferred embodiments, it is clear that those skilled in the art can make various modifications without departing from the scope of the present invention. Therefore, the scope of the invention should be construed by the claims set forth to cover these many variations.

110: bottom plate 120: rear railing
130: front railing 140: side railing
141: extension 150: first extension railing
151: first double hinge part 160: second extended railing
161: second double hinge part 170: third extended railing
171: third double hinge portion 172: first folding portion
173: 2nd fold 180: 4th handrail
181: fourth double hinge portion 182: third folding portion
183: fourth fold 184: auxiliary double hinge
191: locking means 192: fixed tube
193: Fixture 194: Fixture
H: Hinge B: Vertical bar

Claims (5)

In the aerial platform safety railing structure,
A bottom plate 110 serving as a scaffold and forming a working space;
A rear railing 120 formed to have a predetermined height at a rear end of the bottom plate 110;
Consists of a vertical bar (B) in which a hinge that is rotatable forward to one side is formed and a hinge that is rotatable backward to the other side is formed, and a pair of first pairs of hinges respectively coupled to both ends of the rear railing 120 Double hinge portion 151;
A pair of first extension rails 150 coupled to the other hinge of the first double hinge part 151 and having a length corresponding to the front-rear direction of the bottom plate 110;
It is made of the same structure as the first double hinge portion 151, but a pair of second double hinge portions 161 each of which hinges to the other end of the first extension rail 150;
A pair of second extension rails 160, one side of which is coupled to the other hinge of the second double hinge portion 161; Equipped with,
The first extension railing 150 is erected on the left and right ends of the bottom plate 110, respectively, and the second extension railing 160 is erected on the front end of the bottom plate 110 to prevent falling. Expandable sky bucket safety railing structure with a folding structure, characterized in that.
According to claim 1,
A front railing 130 hinged to the front end of the bottom plate 110 so as to be rotatable vertically upward from the horizontal direction;
The left and right end portions of the bottom plate 110 are hinged to be rotatable vertically from the horizontal direction, respectively, and an extension portion 141 formed to protrude to a length corresponding to the height of the front railing 130 as a front end. A pair of side railings 140 provided; Including,
The first extended railing 150 is configured to have a length corresponding to the height of the lateral railing 140,
It is made of the same structure as the first double hinge part 151, a pair of third double hinge parts 171, each of which is coupled to the other end of the second extension rail 160;
A pair of third extension rails 170, one side of which is coupled to the other hinge of the third double hinge portion 171;
It is made of the same structure as the first double hinge portion 151, but a pair of fourth double hinge portions 181 each of which is coupled to the other end of the third extension rail 170;
A pair of fourth extension rails 180, one side of which is coupled to the other hinge of the fourth double hinge portion 181; Further comprising,
When the front railing 130 and the lateral railing 140 and the extension 141 are horizontal and the working space is extended, the first expansion railing 150 is located at the rear, the second expansion railing 160 and An extended sky bucket safety having a folding structure, characterized in that the third extension railing 170 is positioned at the left and right lateral ends of the working space, and the fourth extension railing 180 is built at the front end of the working space to prevent falling. Railing structure.
According to claim 3,
The third extended railing 170,
Foldable structure characterized in that the first foldable portion 172 and the second foldable portion 173 of a relatively shorter length than the first foldable portion 172 are configured to be coupled through a hinge formed to be foldable inward. Expanded sky bucket safety railing structure.
According to claim 3,
The fourth extended railing 180,
The third foldable portion 182 and the fourth foldable portion 183, which are divided into two parts, are configured to be coupled with the secondary double hinge portion 184 having the same structure as the first double hinge portion 151 therebetween. Expandable sky bucket safety railing structure with a folding structure, characterized in that.
The method of claim 4 or 5,
Locking means (191) is formed on the hinge portion is installed to selectively limit the rotation of the hinge,
The front railing 130 and the side railing 140 and the expansion unit 141 form a vertical, the working space is reduced and the first expansion rail 150 is located on the left and right respectively, the second expansion rail 160 And a fixing means (194) for holding the third extension rail (170) and the fourth extension rail (180) so as to maintain an overlapped state.

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