KR101036659B1 - Elevating work platform - Google Patents

Abstract

The present invention relates to an aerial platform that can be used in a place where a plurality of supporting jigs for supporting a workpiece on the floor of the work site, such as shipyards, the working platform, a lift for raising and lowering the work platform, and a lift is installed on the upper surface A base portion, a plurality of legs provided on the base portion, wheels provided on the lower ends of each of the plurality of legs, and a plurality of contact rollers protruding toward one side of the work table, the bottom surface of the base portion on which the plurality of legs are installed The height from the base provides a height platform that is higher than a plurality of support jigs, so that the aerial platform can be freely used without removing or reinstalling the support jigs installed at the work site.

Aerial platforms, lifts and support jigs

Description

Aerial platform {ELEVATING WORK PLATFORM}

The present invention relates to an aerial platform, and more particularly, to an aerial platform that can be used in the place where a plurality of supporting jigs for supporting the workpiece on the floor of the workplace, such as shipyards.

Aerial platform is a device that can be carried out by lifting the worker to the position where the work is to be carried out when work in high places. Currently, aerial platforms of various shapes, structures, and principles are widely used, and aerial platforms with special functions are also used to enable them to be used in special places.

Particularly, in the production site of a large product such as a ship or an aircraft, an aerial platform is used for welding, grinding, and painting and repair work from a floor of the work site to a high place.

By the way, in a work site for assembling a large product such as a ship or an aircraft, since a plurality of support jigs for supporting parts are installed on the floor of the work site, there is a problem that it is difficult to move the aerial platform between the support jigs.

1 shows a general supporting jig.

Referring to Figure 1, a portion of the body 11 of the supporting jig 10 is provided with a support piece 12 for supporting the supporting jig 10 to be upright on the floor of the work site. The upper part of the body 11, the support rod 13 is installed to be inserted and withdrawn in the vertical direction, the spherical head 15 is screwed to the upper end of the support rod (13). The support rod 13 has a plurality of engaging holes 14 are formed along the longitudinal direction, and the spherical head 15 is formed with a tool insertion hole 16 into which the tool 17 is inserted.

Parts (not shown) supported by the supporting jig 10 may be curved, for example, parts such as blocks that are part of a large vessel. Therefore, when supporting a part (not shown) using the plurality of supporting jigs 10, the height between the plurality of supporting jigs 10 should be adjusted differently.

Therefore, the support rod 13 is withdrawn from the body 11 appropriately at the height at which the supporting jig 10 is to be used, and then the fixing pin (not shown) is inserted into the catching hole 14 to support the support rod 13 to the body ( 11).

Subsequently, when the tool 17 is inserted into the tool insertion hole 16 formed in the spherical head 15 and rotated, the spherical head 15 is raised or lowered with respect to the supporting rod 13 according to the rotation direction, and thus the supporting jig is supported. The overall height of (10) can be adjusted to the required height.

On the other hand, in general, the spherical head 15 is further provided with a pedestal (not shown) of wood or synthetic resin material to prevent the parts (not shown) from directly contacting the spherical head 15 and being damaged.

As mentioned earlier, a plurality of supporting jigs 10 are installed on the floor at the work site for assembling a large product such as a ship or an aircraft. In addition, depending on the weight and shape of the parts supported by the plurality of supporting jigs 10, the interval between the plurality of supporting jigs 10 may be narrowly installed. In this case, there is a problem that it is difficult or impossible to use the aerial platform (not shown) between the supporting jigs 10.

Therefore, in order to use the aerial platform (not shown) in the work site as described above, after removing the supporting jig 10 first, the aerial platform may be used, and then the support jig 10 needs to be installed again. There is this.

On the other hand, although not shown in the general aerial platform, when the operator rides to perform the operation of the aerial platform shakes the workpiece and the upper surface of the aerial platform may collide with the surface of the workpiece.

The present invention has been made to solve the above problems, an object of the present invention is to provide an aerial platform that can be used freely without removing or reinstalling the supporting jig installed on the work site.

Another object of the present invention is to provide an aerial platform that is freely movable and stably supported without shaking during operation.

In addition, another object of the present invention is to provide an aerial platform that can perform the operation without damaging the surface of the part.

According to the present invention in order to achieve the above object, a plurality of supporting jig is an aerial platform that can be used in the work site installed on the floor, the fixed part, the movement installed to be slidably moved in the horizontal direction with respect to the fixed part Worktable including department; Lifts to raise and lower the workbench; A base portion on which a lift is installed; A plurality of legs installed in the base portion; A plurality of wheels installed at lower ends of the plurality of legs; A plurality of contact rollers protruding toward one side of the work table; An outer handrail installed at an edge of the fixing part; An inner hand rail installed at an edge of the moving part; An entrance door installed at a portion of one side of the inner handrail; And an open / close detection sensor for detecting an open / closed state of the door, wherein a height from the bottom surface of the base portion on which the plurality of legs are installed is higher than a plurality of supporting jigs, and the locking of the door and the operation of the lift are restricted by the open / close detection sensor. A feature aerial platform is provided.

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The lift may be a pantograph-type lift in which a plurality of lift arms are hinged in an X-shape and extended and shortened by a lifting cylinder.

It includes a steering wheel that is rotatably and foldable on any one of the plurality of legs, and a driving wheel installed on the lower end of the steering wheel, the driving wheel can be driven by the steering wheel and whether the driving direction can be adjusted.

It further includes a plurality of outriggers (foldable) are provided to be folded on each of the plurality of legs, the outrigger can adjust the length and direction of the deployment.

The aerial platform may further include a plurality of brakes installed on each of the plurality of wheels.

The touch sensor may further include a plurality of touch sensing sensors installed on the plurality of touch rollers, and the sliding movement of the moving unit or the lowering of the lift may be stopped according to any one of the plurality of touch sensing sensors.

The material of the plurality of contact rollers may be rubber or synthetic resin having elasticity, and further include an arm interposed between the moving part and the plurality of contact rollers, the arm may be stretchable and foldable.

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The upper end of the inner handrail may be manufactured in a shape to cover the upper end of the outer handrail, and the tool holder and the safety hook may be further installed on the inner handrail.

According to the present invention, since a plurality of legs each provided with wheels is higher than the supporting jig installed at the work site, the aerial platform may be used without removing the supporting jig.

In addition, the present invention can stably support the small work platform by using a plurality of outriggers radially spread.

In addition, the present invention can prevent the damage to the surface of the workpiece while being able to perform a stable height operation by allowing the worktable to be supported on the workpiece by the contact roller.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in detail.

2 is a perspective view of the aerial platform according to an embodiment of the present invention.

Referring to Figure 2, aerial platform 200 according to an embodiment of the present invention is largely composed of a driving unit 210, a lift 230 and a working platform (250).

The driving unit 210 is a portion for moving the aerial platform 200, the lift 230 is installed on the upper surface of the base portion 211. A plurality of legs 212 and 214 are provided at the bottom edge of the base portion 211, and wheels 213 and 215 are provided at the lower ends of the plurality of legs 212 and 214, respectively.

Here, although the aerial platform 200 according to an embodiment of the present invention has been shown that four legs 212, 214 is installed, the number of the bridge (not shown), such as equipment loaded on the aerial platform 200 It can be added or decreased depending on the load.

On the other hand, the fixed wheel 213 is provided at the lower end of the leg 212 installed on one side of the base portion 211, respectively. The fixed wheel 213 is fixed to a rotating shaft (not shown), and rotates about the rotating shaft (not shown), and does not rotate in the horizontal direction.

The steering wheel 215 is rotatably installed in the horizontal direction at the lower end of the leg 214 provided on the other side of the base 211. Thus, the steering wheel 215 not only rotates with respect to the bottom surface, but also rotates in the horizontal direction.

At this time, the legs (212, 214) has a height so that the upper surface of the base portion 211 can be horizontal to the bottom surface.

On any one of the legs 214 installed on the other side of the base portion 211, the steering wheel 217 is installed to be rotatable in the horizontal direction and foldable adjacent to the leg 214. A driving wheel 216 is installed at the lower end of the steering wheel 217, and a driving handle 218 is installed at the other end.

The driving wheel 216 is provided with an electric motor (not shown) and a brake (not shown), and an operator (not shown) may move the driving unit 210 to a desired position by using the same. That is, the driving direction of the driving wheel 216 is determined according to the rotation of the steering wheel 217 in the horizontal direction, and whether the driving wheel 216 is driven or stopped can be adjusted by the driving knob 218. The driving knob 218 is provided with a lever (not shown) capable of manipulating the forward, reverse, rotational speed and stop of the driving wheel 216.

Here, when the operator (not shown) changes the horizontal angle of the steering wheel 217 while the aerial platform 200 is moved, and the direction of the driving wheel 216 is changed, the steering wheel 215 as described above Since it is rotatably installed in the horizontal direction with respect to the leg 214, the steering wheel 215 also faces the direction toward the drive wheel 216.

Therefore, an operator (not shown) may freely adjust the moving direction of the aerial platform 200 using the driving handle 218 to move the aerial platform 200 to a desired position and then stop it. When the aerial platform 200 is not moved, the operation handle 218 may be folded around the bridge 214 so as not to disturb the movement and work of another worker (not shown).

Although not shown, a battery and a control device are installed in the electrical equipment box 219 installed at one side of the base 211, and the aerial platform 200 may be installed in addition to the lever (not shown) of the driving handle 218. The operation of an electric motor (not shown) and a hydraulic pump (not shown) is controlled according to a signal input to an operation switch (not shown) installed elsewhere.

On the other hand, the lift 230 is hinged to both ends and the middle portion of the plurality of lift arms 235, one or more lift cylinder 231 and the lifting rod 232 is connected to some of the lift arm 235.

The elevating rod 232 is a device that one end is inserted into the elevating cylinder 231, so that it can be extended or shortened by the hydraulic pressure.

Therefore, when the lifting cylinder 231 and the lifting rod 232 are extended, the lift 230 is also extended, and when the lifting cylinder 231 and the lifting rod 232 are shortened, the lift 230 is also shortened. That is, the lift 230 is referred to as a pentagraph-type lift or scissor lift operated by hydraulic pressure, the lift arm 235, the lifting cylinder according to the height of the work site where the aerial platform 200 is used. The length and number of the 231 and the lifting rod 232 can be added or subtracted.

Since the pantograph-type lift is well known to those skilled in the art, a detailed description of the pentergraph-type lift itself will be omitted. However, the aerial platform 200 according to an embodiment of the present invention has been shown that the pentagraph-type lift 230 is applied, but this does not limit the spirit of the present invention, other types of lift may be used.

The work table 250 is installed at an upper portion of the lift 230.

Workbench 250 is a device that a worker (not shown) is carried on the work, the workbench 250 is fixed to the upper end of the lift 230, 251 and sliding from the fixed part 251 back and forth A moving unit 261 installed to be movable is included. Sliding movement of the fixing part 251 and the moving part 261 will be described later.

Upper contact detectors 270 are provided on both front upper sides of the moving unit 261, and lower contact detectors 280 are installed on both front lower sides of the mobile unit 261. The structure and operation of the upper contact detector 270 and the lower contact detector 280 will be described later.

On the other hand, the work table 250 may be added to the device for protecting the worker (not shown) and the device for the convenience of the worker (not shown). Devices capable of protecting an operator (not shown) include an outer hand rail 252, an inner hand rail 262, a safety hook 263, and the like. Tool holder 264 and a work stand (not shown).

The outer handrail 252 is installed on the edge except the front of the fixing portion 251, the inner handrail 262 is installed on the edge of the moving part 261 (not shown) ) Fall and allow an operator (not shown) to lean on the job.

At this time, the upper end of the inner hand rail 262 is manufactured in a shape to cover the upper end of the outer hand rail 252, the hand of the operator (not shown) between the outer hand rail 252 and the inner hand rail 262 Prevent jamming.

The safety hook 263 is installed in plural inside the inner hand rail 262 so that the seat belt (not shown) connected to the body of the worker (not shown) can be fastened so that the worker (not shown) can work. 250 to prevent falling out.

As illustrated, the front side of the moving part 261 of the inner handrail 262 is installed to have a lower height than other directions. This is to facilitate the work of the worker (not shown), but the risk of the worker (not shown) to fall can be increased. Therefore, a chain (not shown) or the like may be further installed at the front portion of the inner hand rail 262 to prevent the fall of an operator (not shown).

In addition, a non-slip plate (not shown) such as a steel plate or a rubber plate having irregularities formed on the bottom surface of the moving part 261 may be provided so that an operator (not shown) may not fall down during the operation.

On the other hand, tool holder 264 is a welding machine (not shown) when the operator (not shown) to use a plurality of tools (not shown) at the same time, for example, welding and welding scale removal at the same time After temporarily mounting the tool holder 264, the welding scale may be removed using a scraper (not shown) or the like that is mounted on the tool holder 264. Accordingly, convenience and productivity of the worker (not shown) can be improved by not performing additional operations such as bending a waist to change a tool (not shown) that the worker (not shown) was using.

In addition, the above-described working pedestal (not shown) may be installed at one side of the bottom surface of the moving part 261. Work pedestal (not shown) can be used to put the tools or parts used in the work, such as to prevent the operator (not shown) a lot of operation to pick up the tools or parts and the like. In addition, a drawer (not shown) may be further installed on a work stand (not shown) to store consumables or drinking water used for the work, and thus a long time after the operator (not shown) boards the aerial platform 200. We can work on work.

Reference numerals that are not described are the doors 267 installed at one rear of the inner handrail 262, which will be described with reference to FIG. 3.

3 is a working platform of the aerial platform according to an embodiment of the present invention.

Referring to FIG. 3, the work table 250 includes a fixing part 251 and a fixing part 251 and a moving part 261 that is slidably movable.

A bracket 255 is installed on the bottom of the fixing part 251, and one end of the expansion cylinder 253 is connected to the bracket 255. A bracket 255a is installed at the bottom of the moving part 261, and one end of the elastic rod 254 is connected to the bracket 255a.

At this time, the stretching rod 254 is a device that the other end is inserted into the other end of the expansion cylinder 253 to be extended or shortened. Typically, the expansion rod 254 and the expansion cylinder 253 is a double-acting hydraulic device that is operated by hydraulic pressure.

Therefore, when the expansion rod 254 and the expansion cylinder 253 are extended, the moving part 261 slides forward from the fixing part 251, and when the expansion rod 254 and the expansion cylinder 253 are shortened, the moving part 261 is slidably moved rearward and moved into the fixing part 251.

At this time, although not shown, a pair of guides parallel to the direction in which the stretch rod 254 and the stretch cylinder 253 are extended or shortened at both sides of the bottom of the moving part 261 and the corresponding positions of the fixing part 251. A rail is provided so that sliding movement is possible, and the moving part 261 supports the fixed part 251 so that sliding movement is possible.

On the other hand, the door (see 267 in FIG. 2) is installed to open and close on one side of the inner hand rail 262 in order to allow the operator (not shown) to easily ride on the work table 250. In addition, an opening portion 257 is formed in the outer hand rail 252, and the position of the opening portion 257 is the entrance door when the moving portion 261 is not slid forward from the fixing portion 251. 267). Thus, an operator (not shown) may board the work platform 250 via the opening 257 and the door (see 267 in FIG. 2).

The door (see 267 in FIG. 2) is provided with an automatic locking device (not shown) to control the opening and closing and an opening / closing sensor (not shown) for detecting the opening and closing of the door (see 267 in FIG. 2).

Therefore, when an operator (not shown) closes the door (see 267 in FIG. 2) after boarding the workbench 250, the opening / closing sensor (not shown) detects this and activates an automatic locking device (not shown). To prevent the door (see 267 in FIG. 2) from opening regardless of the intention of the operator (not shown), thereby allowing the worker (not shown) to fall out of the workbench 250 through the door (see 267 in FIG. 2). prevent.

In this case, in order to open the door (see 267 in FIG. 2) after the worker (not shown) ends the operation, the automatic locking device is operated by operating an opening switch (not shown) installed around the door (see 267 in FIG. 2). (Not shown) to deactivate the operation.

Here, since the aerial platform (see 200 of FIG. 2) may be used for welding, polishing, painting, etc., the opening and closing detection sensor (not shown) may include an infrared sensor or an optical sensor that is likely to malfunction due to dust or foreign matter. It is better to use a touch sensor such as a limit switch rather than the same non-contact sensor to reduce the malfunction.

In addition, in order to prepare for malfunction of the open / close detection sensor (not shown) and the open switch (not shown), the door (see FIG. 2 of FIG. 2) can be manually locked by the operator (not shown). Additional bars (not shown) may be installed inside.

In addition, the opening / closing detection sensor (not shown) prevents the lift (see 230 of FIG. 2) from operating when the door (see 267 of FIG. 2) is not locked so that an operator (not shown) is opened. Falling can be prevented through

When the door (see 267 of FIG. 2) is not locked by the opening / closing detection sensor (not shown), the moving part 261 is also not moved relative to the fixing part 251, so that the worker (not shown) (Not shown) may be caught between the opening 257 and the door (see 267 in FIG. 2), or the door (see 267 in FIG. 2) may be prevented from being broken.

The upper contact detecting unit 270 is installed at the front upper side of the moving unit 261, and the lower contact detecting unit 280 is installed at the front lower side of the moving unit 261. The upper contact detector 270 and the lower contact detector 280 will be described in detail with reference to FIGS. 4 and 5, respectively.

4 is an enlarged view of a portion indicated by A in FIG. 3.

Referring to FIG. 4, the upper contact detecting unit 270 is installed at the upper end of the inner hand rail 262 of the moving unit (see 261 of FIG. 2).

A bracket 279 is installed at the upper end of the inner hand rail 262. One end of the hollow arm 276 is inserted into the bracket 279, and a pivot pin 277 is installed through the one end of the bracket 279 and the hollow arm 276. Accordingly, one end of the hollow arm 276 is rotatably connected to the bracket 279 in the vertical direction by the pivot pin 277.

At this time, the fixing pin 278 is inserted to be pulled out at a position spaced a predetermined distance away from the inner hand rail 262 from the position where the rotation pin 277 of the bracket 279 is installed. The fixing pin 278 penetrates one end of the hollow arm 276 together with the bracket 279 like the pivot pin 277 to fix the hollow arm 276 so as not to rotate with respect to the bracket 279. In order to prevent the loss of the fixing pin 278, one end of the fixing pin 278 may be connected to the inner hand rail 262 by a chain (not shown).

On the other hand, one end of the sliding arm 273 is inserted into the other end of the hollow arm 276 to be slidably movable in the longitudinal direction. A plurality of fixing holes 274 are formed in the sliding arm 273 along the longitudinal direction. A fixing pin 275 is inserted into the other end 276 of the hollow arm 276 so that the fixing pin 275 penetrates the hollow arm 276 and the sliding arm 273 together, thereby sliding the slide arm 273. ) To prevent sliding movement with respect to the hollow arm 276. In order to prevent the loss of the fixing pin 275, one end of the fixing pin 275 may be connected to the hollow arm 276 or the inner hand rail 262 by a chain (not shown).

The sensor cover 272 is provided at the other end of the sliding arm 273. Inside the sensor cover 272, a touch sensing sensor (not shown) such as a limit switch is installed. The contact roller 271 is rotatably installed in the vertical direction in the touch sensor (not shown), and the contact roller 271 is installed to protrude further in the direction of the other end of the sliding arm 273 than the sensor cover 272. do.

Here, as the material of the contact roller 271, one which does not damage when contacted with the surface of another object such as rubber or synthetic resin having elasticity is used.

Accordingly, the upper contact detecting unit 270 inserts the sliding arm 273 into the hollow arm 276 in the state in which the fixing pin 275 is drawn out or vice versa, and then fixes the sliding roller 273 with the fixing pin 275. The distance between the 271 and the inner handrail 262 can be adjusted. That is, the overall length of the arms 273 and 276 is adjustable.

In addition, when the upper contact detecting unit 270 is not used, the fixing pin 278 may be drawn out and the hollow arm 276 may be rotated with respect to the bracket 279 so that the hollow arm 276 faces vertically downward. have.

That is, when moving the aerial platform (see 200 of FIG. 2), the upper contact detecting unit 270 can be folded vertically downward so that the upper contact detecting unit 270 is not caught by the obstacle.

Operation of the upper contact detecting unit 270 will be described later.

FIG. 5 is an enlarged view of a portion denoted by B in FIG. 3.

Referring to FIG. 5, the lower contact detecting unit 280 is installed at the lower end of the moving unit 261. A sensor cover 282 is installed at the lower end of the moving part 261, and a touch detection sensor (not shown) such as a limit switch is installed inside the sensor cover 282. The contact roller 281 is rotatably installed in the vertical direction in the touch sensor (not shown), and the contact roller 281 is installed to protrude further in front of the moving part 261 than the sensor cover 282.

Here, the material of the contact roller 281 is used that does not damage when contacted with the surface of another object, such as rubber or synthetic resin having elasticity.

The operation of the lower contact detecting unit 270 will be described later.

Figure 6 shows an example of the use state of aerial platform according to an embodiment of the present invention.

Referring to FIG. 6, a worker 240 performs work on a workpiece 220 located at a height in a workplace for manufacturing a large product (not shown), such as a ship or an aircraft, in which a plurality of supporting jigs 10 are installed. The scene to be performed is shown.

At this time, the wheels (see 213 and 215 of FIG. 2) and the wheels (see 213 and 215 of FIG. 2) are respectively installed at the lower ends of the legs 212 and 214, that is, the base portion (FIG. 2 from the bottom of the work site). 211) is higher than the supporting jig 10, so that the driving unit 210 may move freely between the supporting jig 10.

The lift 230 installed on the driving unit 210 extends to a position where the worker 240 on the work platform 250 is easy to work on the workpiece 220 located at the height.

In addition, the moving part 261 is slidably moved from the fixing part 251 to allow the worker 240 to approach the workpiece 220.

Here, the work roller 220 is in contact with the contact roller (see 271 of FIG. 4) of the upper contact sensing unit 270 and the contact roller (see 281 of FIG. 5) of the lower contact sensing unit 280.

The upper contact detector 270 and the lower contact detector 280 each have a contact roller (see 271 in FIG. 4 and 281 in FIG. 5) by the built-in touch sensor (not shown). Detect whether or not it is in contact. When one of the contact rollers 271 and 281 is detected in contact with the workpiece 220 by a touch sensor (not shown), the moving part 261 no longer slides forward from the fixing part 251. Do not move or do not allow the lift 230 to descend.

Accordingly, the upper contact detecting unit 270 and the lower contact detecting unit 280 prevent the moving unit 261 from colliding with the workpiece 220 to protect the surface of the workpiece 220.

On the other hand, when the contact roller (see 271 in FIG. 4 and 281 in FIG. 5) comes into contact with the workpiece 220, the moving part 261 is also supported by the workpiece 220 in addition to the fixing part 251. The 240 may work more stably on the work table 250.

Here, the contact roller (see 271 of Figure 4, 281 of Figure 5) is made of a material that does not damage the surface of other objects, such as rubber or synthetic resin having elasticity as described above, the surface of the workpiece 220 Not damaged.

In addition, since the contact roller (see 271 of FIG. 4, 281 of FIG. 5) can be rotated in the vertical direction, even if the work table 250 is slightly shaken according to the movement of the worker 240, the surface of the workpiece 220 is moved. Since it moves along up and down, the surface of the workpiece 220 is not damaged.

Meanwhile, as described above, the upper contact detecting unit 270 may adjust the distance from the contact roller (see 271 in FIG. 4) to the moving unit 261, that is, the overall length of the upper contact detecting unit 270. The 240 may set the distance between the moving part 261 and the workpiece 220 to facilitate the work by adjusting the length of the upper contact detecting part 270 to match the shape of the workpiece 220.

Therefore, since the aerial platform 200 according to an embodiment of the present invention can move freely at a work site where a plurality of supporting jigs 10 are installed, it is possible to prevent the hassle of having to remove and reinstall the supporting jigs 10. In addition, the worktable 250 is supported by the work piece 220 by the contact rollers 261 and 263, so that the work can be stably performed, and damage to the surface of the work piece 220 can be prevented.

On the other hand, as described above, since the height of the base portion (see 211 of FIG. 2) is higher than the support jig 10, the worker 240 can board the work platform 250 through the door (see 267 of FIG. 2). A ladder (not shown) may be installed in the running portion 210 or the work table 250 to make it possible.

At this time, the ladder (not shown) may be folded, so that when the aerial platform 200 moves, the lower end of the ladder (not shown) may not collide with the supporting jig 10. In addition, a locking device (not shown) may be installed to maintain the folded state so that the folded ladder (not shown) is unfolded during the movement so as not to collide with the surrounding workers (not shown) or the supporting jig 10. Can be.

In addition, the handle 251 (not shown) may be gripped by the worker 240 who rides through the door (267 of FIG. 2) on the fixing part 251 and the outer hand rail (see 252 of FIG. 2) installed in the fixing part 251. ) May be further installed to allow the worker 240 to easily ride on the workbench 250.

In addition, by installing a horn (not shown) or a beacon (not shown) on the aerial platform 200, the aerial platform to call the attention of other workers (not shown) when moving the aerial platform (not shown) It may be to prevent the accident to collide with the worktable 200.

On the other hand, aerial platform 200 may also be used outdoors, it should be protected so that each part is not damaged by temperature changes according to rain or snow, seasons. In particular, it is advisable to add a waterproofing device so that moisture does not penetrate the electric motor (not shown) and the electric box (see 219 of FIG. 2).

In addition, the wires (not shown) connecting the various components of the aerial platform 200 are not exposed to the aerial platform 200 so that the wires (not shown) are damaged or wires (not shown). ) Is preferably not caught by the support jig (10).

7 and 8 illustrate a state in which the outrigger is installed on the bridge of aerial platform according to an embodiment of the present invention.

Referring to FIG. 7, an outrigger 290 is installed on a leg 212 of an aerial platform (see 200 of FIG. 2) according to an exemplary embodiment of the present invention.

On one side of the leg 212, the rotation support portion 296 is installed. A plurality of fixing holes 297 are formed radially with respect to the center portion at the edge portion of the rotation support portion 296. One end of the hollow support 294 is inserted into the rotation support 296. At this time, the pivot pin 296a is installed to vertically pass through the rotary support 296 and the hollow support 294 together, the hollow support 294 is coupled to rotate in a horizontal direction with respect to the rotation support 296. .

On the other hand, the hollow support 294, one end is coupled to the hollow support 294, the other end is provided with a bracket 298 covering a plurality of fixing holes 297 formed in the rotation support 296. The other end of the bracket 298 is provided with a fixing screw 299 inserted or drawn out in accordance with the rotation direction.

Therefore, when the fixing screw 299 is rotated to be inserted in the downward direction so that the end of the fixing screw 299 is inserted into the fixing hole 297, the hollow support 294 rotates in the horizontal direction with respect to the rotation supporting part 296. It can be fixed so as not to. That is, the hollow support 294 may be fixed in a specific direction by using the fixing screw 299.

The other end of the hollow support 294 is inserted into one end of the sliding support 292 to be inserted or withdrawn. One side of the sliding support 292 is formed with a plurality of fixing holes 293 in the longitudinal direction, the other end of the hollow support 294 is provided with a fixing screw 295 that is inserted or withdrawn in the rotational direction.

Therefore, when the fixing screw 295 is rotated to be inserted downward so that the end of the fixing screw 295 is inserted into the fixing hole 293, the sliding support 292 does not slide with respect to the hollow support 294. Can be fixed. That is, the length of the sliding support 292 drawn out from the hollow support 294 can be adjusted using the fixing screw 295.

The other end of the sliding support 292 is provided with a grounding portion (291). The grounding unit 291 is a device capable of fixing the sliding support 292 to the floor of the workplace, as shown in the grounding portion consisting of a fixing handle 291a, a screw rod 291b, a ground plate 291c 291 may be used.

The screw rod 291b is installed to vertically penetrate the other end of the sliding support 292. The screw rod 291b is raised and lowered with respect to the sliding support 292 as the screw rod 291b rotates. .

A fixing handle 291a is installed at the upper end of the screw rod 291b and a ground plate 291c is installed at the lower end. Therefore, the grounding plate 291c may support or lift the work site floor by using the fixing handle 291a.

Therefore, the outrigger 290 having the structure as described above, the distance from the leg 212 to the ground plate 291c using the fixing screws 295, 299 and the outrigger 290 is the leg 212 You can adjust the direction to support the secondary.

Referring to FIG. 8, an outrigger 290 is provided in each of a plurality of legs (see 212 and 214 of FIG. 2) provided in the driving unit 210.

When the plurality of outriggers 290 are installed to be radially unfolded as shown, the aerial platform (see 200 of FIG. 2) is more stably supported when the work is performed using the aerial platform (see 200 of FIG. 2). can do.

On the other hand, the aerial platform according to an embodiment of the present invention (see 200 of FIG. 2) is not only a work site in which a plurality of supporting jig (see 10 of FIG. 5) is installed, but also various production equipment (not shown) and test equipment ( Obstacles (not shown) may be conveniently used in workplaces installed on the floor.

Therefore, when moving the aerial platform (see 200 in FIG. 2), the grounding plate (see 291c in FIG. 7) is lifted from the floor of the work site by rotating the fixing handle (see 291a in FIG. 7). The sliding support (see 292 in FIG. 7) is inserted into the hollow support (294 in FIG. 7) as much as possible by using (see 295 in FIG. 7), and the hollow support (see 299 in FIG. 7) is used. 294 may be fixed in a direction in which the driving unit 210 does not protrude in the lateral direction.

That is, the support jig when the aerial platform (200 in FIG. 2) is moved within the work site by having the outrigger 290 adjacent to both sides of the driving unit 210 as shown by the dotted line (see 10 in FIG. 5). And obstacles such as production equipment (not shown) and test equipment (not shown).

On the other hand, by adding a hydraulic device (not shown), etc. to the legs (see 212, 214 of FIG. 2) of the aerial platform (see 200 of FIG. 2) according to an embodiment of the present invention is configured to be stretchable On the other hand, in the work site where the supporting jig (see 10 of FIG. 5) is not installed, the height of the base 211 can be lowered to more stably use the aerial platform (see 200 of FIG. 2), and the supporting jig (see FIG. 5). The aerial platform (see 200 in FIG. 2) can also be used for varying heights.

In addition, when working with the aerial platform (see 200 of FIG. 2), install a brake (not shown) or wheel (車輪 止, scotch, not shown) on the wheel (213, 215 of FIG. 2) By keeping the wheels from moving, you can work more stably.

Although described with respect to the aerial platform according to an embodiment of the present invention, the spirit of the present invention is not limited to the embodiments presented herein, those skilled in the art to understand the spirit of the present invention within the scope of the same idea, Other embodiments may be easily proposed by adding, changing, deleting, or adding components, but this is also within the scope of the present invention.

1 is a perspective view of a general supporting jig

Figure 2 is a perspective view of the aerial platform according to an embodiment of the present invention

Figure 3 is a side view of the workbench part of the aerial platform according to an embodiment of the present invention

4 is a side view of the portion indicated by A in FIG.

FIG. 5 is a side view of the portion denoted by B in FIG. 3

Figure 6 is a side view showing a state of use of aerial platform according to an embodiment of the present invention

7 is a partial perspective view showing a state in which the outrigger is installed on the bridge of aerial platform according to an embodiment of the present invention

8 is a plan view for explaining the operation of the outrigger installed in the aerial platform according to an embodiment of the present invention;

Explanation of symbols on main parts of drawing

200: aerial platform 210: driving unit

212, 214: bridge 217: steering wheel

218: driving handle 219: battlefield box

230: lift 250: workbench

251 fixing part 252: outer hand rail

261: moving part 262: inner handrail

270: upper contact detection unit 280: lower contact detection unit

290: Outrigger

Claims (12)

As the aerial platform that can be used in the workplace where a number of supporting jigs are installed on the floor, A work table including a fixing part and a moving part installed to be slidably moved in a horizontal direction with respect to the fixing part; A lift for raising and lowering the workbench; A base portion on which the lift is installed; A plurality of legs installed in the base portion; A plurality of wheels installed at lower ends of each of the plurality of legs; A plurality of contact rollers protruding to one side of the worktable; An outer handrail installed at an edge of the fixing part; An inner hand rail installed at an edge of the moving part; An entrance door installed at a portion of one side of the inner handrail; And It includes an opening and closing detection sensor for detecting the opening and closing state of the door, The height from the bottom surface of the base portion provided with the plurality of legs is higher than the plurality of supporting jigs, Aerial work platform, characterized in that the locking of the door and the operation of the lift is limited by the opening and closing detection sensor. delete The method of claim 1, The lift platform is a high lift platform characterized in that the plurality of lift arms are hinged in the X-shape is extended and shortened by the lifting cylinder. The method of claim 1, A steering wheel installed to be rotatable and foldable on any one of the plurality of legs; And Further comprising a driving wheel installed on the lower end of the steering wheel, The driving wheel is aerial platform, characterized in that the drive and the driving direction is adjusted by the steering wheel. The method of claim 1, Further comprising a plurality of outriggers are foldably installed on each of the plurality of legs, The outrigger aerial platform, characterized in that the adjustable length and direction of the spread. The method of claim 1, A platform further comprising a plurality of brakes provided on each of the plurality of wheels. The method of claim 1, Further comprising a plurality of touch sensing sensors respectively installed on the plurality of contact rollers, A platform according to claim 1, wherein the sliding movement of the moving unit or the lowering of the lift is stopped according to any one of the plurality of touch detection sensors. The method of claim 1, Aerial work platform, characterized in that the material of the plurality of contact roller is a synthetic resin having rubber or elasticity. The method of claim 1, Further comprising an arm interposed between the moving portion and the plurality of contact rollers, The arm is an aerial platform, characterized in that stretch and folding possible. delete The method of claim 1, Aerial work platform, characterized in that the upper end of the inner handrail is shaped to cover the upper end of the outer handrail. The method of claim 1, Aerial platform, characterized in that it further comprises a tool holder and a safety hook installed on the inner hand rail.

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