SU1221203A1 - Load-hoisting table - Google Patents

Description

This invention relates to lifting devices.

The purpose of the invention is to improve the safety of the device by automatically locking the load in the process of lifting,

Hia FIG. 1 shows a lifting table with a centering device in the upper position, general view; in fig. 2 is a view along arrow A (top) in FIG. one.

The lifting table consists of a base 1, a movable platform 2j of a hinge-lever mechanism such as Nuremberg scissors 3, locking weight bars 4, rollers 5 mounted on support bars 6, springs 8 and 9 mounted on rails 7 on both sides of fixing bars 4, guide bars 10, symmetrically and rigidly mounted on the underside of the movable platform 2, nuts 11 and 12 of the hydraulic actuator 13, and guide grooves 14 along which the rollers move

The lifting and lowering of the movable platform is carried out by a hydraulic actuator 13. When the movable platform 2 is raised, the upper ends of the Nuremberg scissors

221203, 2

together with the support rollers 5, they move together, moving cw to a common central axis of symmetry. Basic rollers 5, I will influence a persistent level

5 6, it is displaced together with the guides 7, the springs 8 and 9, and the fixing bar 4. In this case, the spring 8, resting against the fixed guide bar 10, is compressed and, transferring

10, the pressure through the paris bar 4 compresses the spring 9. The fixing of the position of the bar 4 is determined by the dimensions of the container being lifted.

Stay up against the container, bar 4

15 stops and. upon further movement, the guides 7 additionally compress the spring 9 until the lifting of the movable platform 2 is completed.

20 When the movable platform 2 is lowered. The rollers 5 roll back to the right. In this case, the support bar 6, together with the guide 7, occupies the initial position under the action of the compressed springs 8 and 9. The locking bar 4 is moved away from the container by the action of the spring 8 when the platform 2 is in the lower position and the spring 9 is fully opened.

10 4

7 to 9

Editor K. Voloshchuk

Compiled by A.Voloshchanko Tehred I.Gaidosh

Order 1549/32

Circulation 799 Subscription

VNIIPI USSR State Committee

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

Branch PPP Patent, .g. Uzhgorod, st. Project, 4

Proofreader L. Patay

Claims (1)

A LOADING TABLE containing a base and a movable platform interconnected by crossing levers' forming two parallel articulated lever systems such as Nuremberg knife-. , facing, associated with the lifting drive, characterized in that, in order to increase the safety of work by automatically securing the load during lifting, it is equipped with stop bars and straps for securing the load, the latter are mounted movably on horizontal rails and spring-loaded on both sides relative to them which are fixed on the platform with the ability to move along it, and on the rails fixed thrust strips interacting with the upper ends of said levers. SU, _{1 !:} 1221203> 1221203 2