SU1224387A1 - Scaffold for servicing equipment mounted on vehicle - Google Patents

Description

The invention relates to scaffoldings intended for servicing equipment, such as an antenna installation, which is stored and transported on a vehicle.

The aim of the invention is to increase the convenience of operation and reduce the time of transfer from the transport position to the working position and back.

FIG. 1 shows the scaffolding intended for maintaining the antenna installation placed on the vehicle in the working position; figure 2 - the same, in the transport position; in fig. 3 view A in FIG. one; in fig. 4 is a view B in FIG. 2; in fig. 5 - 8 - phased unfolding of scaffolding, section BB in FIG. 3; in fig. 9 is a cross-section of the FIG. 3 (by lever and

elastic element); in fig. 10-view And 20 4, providing accommodation obs

in fig. eight; in fig. 11 is a section of the LF in FIG. 3; On fi 12 - section 3-3 in FIG. 3; in fig. 13 is a section DD-F (on the finger) in FIG. 3; in fig. 14 is a section E-E (along the hinge of the additional working platform) in FIG. 3

The scaffolds contain the main working platforms 1-3, attached to the folding base 4 of the equipment serviced by the hinges 5. On the platform 2 additional working platforms 6 are hinged, supported by the free side to platforms 1 and 3. Bolts 7 and stops 8 limiting the turning angle: additional sites. On the main working site 1, 2 and 3 are pivotally fixed racks 9-11 fencing. Racks are connected to the folding base 4: extreme U stands - through the hinged handrails 12, racks 10 and 11 - through the hinged rods 13 Each stand forms with the main working platform I, 2 or 3, the folding base 4 and the handrail 12 or th 13 parallelogram. Racks 10 and 11 are interconnected by a flexible handrail 14. Ladder 15 is combined with racks 11 into a single rigid frame. The ends of the main working platforms I and 3 have pins 16, the free kotstsy of which are inserted into the windows at the ends of the platform 2. On the main working platforms 1, 2 and 3 are fixed levers 17 connected by hinges 18 with elastic elements 19. Elastic elements 19 are connected to a folding base 4 by hinges 20. Hinges

18 in the working and transport positions of the main working platforms and 3 are located on opposite sides of the straight line passing through the respective hinges 5 and 20.

The rotational moments Мр created by elastic elements 19 on the main working platforms 1 - 3, both in the working and transport position of the scaffolds, are opposite in the direction of the torque M, created by the weight of the scaffolding, and 10-20% less.

The device works as follows.

In the folded down position for transportation, the main working platforms 1–3, the pillars 9–11 and the ladder 15 are close to the folding base.

M M

equipment being installed together with a scaffolding in the dimensions necessary for their transportation. The flexible handrails 14 are bent, and the additional working platforms 6 are deployed, and the bolts 7, in cooperation with the stops 8, limit the turning of the additional platforms 6, excluding their fluctuations during transportation. In this position, the scaffolds are held by rotating mo-. by the weight of their weight, which exceeds the torque M from the elastic elements 19.

When transferring the serviced equipment from the transport position to the working position in the process of lifting the folding base 4, the torque decreases from the weight of the scaffold.

M M 5

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After the torque is less than the torque of the elastic elements of M, the main dimensions are 1–3

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The ground pads I - 3 will begin to unfold under the action of the latter.

In the process of turning the main working platforms 1 - 3 and further raising the folding base 4, the direction of action of the torques Mr Mc. After that, the turn of the main work sites continues under the action of the torque MQ, and the torque, moment M, counteracts it and relieves a blow to the stops when the main work sites reach the extreme, working position.

When you turn the main working platforms I - 3 racks 9 - 11 and the ladder 15 make a flat parallel1

This movement, and the pins 16, interacting with the edges of the windows, ensure simultaneous reversal of all the main working platforms and exclude the wake of additional working areas 6 under the main platforms 1 and 3.

In the working position of the scaffolding, the additional working platforms 6 rest on the main working platforms 1 and 3 and provide the possibility of transition from one main platform to another / Racks 9-1 of the fence are kept from turning in the vertical position with handrails 12 and t

13. Flexible handrails 14 prevent service personnel from falling between racks 10 and 11. Ladder 15 provides access to work areas from the vehicle. In this position, the scaffolds are held by the torque Md, which exceeds the torque Mp. In general, the scaffolds provide approaches to all necessary equipment service areas.

Conversion of scaffolding from working position to transport production in reverse order.

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Compiled by E. Volkova Editor K. Voloshui Tehred and. Gaydosh Proofreader L. Patay

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Order 1897/27. Circulation 728. Subscription

.VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5,

Production and printing company, Uzhgorod, Projecto st., 4

FIG. one

Claims (1)

(57.) SCOPES FOR MAINTENANCE OF EQUIPMENT INSTALLED ON A VEHICLE by auto, sv. No. 1158720, characterized in that, in order to improve ease of use and reduce the time of transfer from transport to working position and vice versa, each working platform is equipped with a lever pivotally connected to the rod of the elastic element, the body of which is pivotally connected to the base.