WO2009077793A1

WO2009077793A1 - Improved structure of hydraulic sheeting support

Info

Publication number: WO2009077793A1
Application number: PCT/HR2008/000039
Authority: WO
Inventors: Petar Kunic
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-14
Filing date: 2008-12-08
Publication date: 2009-06-25
Anticipated expiration: 2010-06-14
Also published as: EA201000962A1; EP2235289A1; EA016191B1

Abstract

The improved construction of the hydraulic sheeting support is comprised of a hydraulic jack 1, affixed by a bolt of the jack housing 4 onto the thread 17 of the main cylinder 15, and likewise affixed with a bolt for fastening the operational cylinder onto the hydraulic sheeting support 13 on the operational cylinder 18, which is positioned inside the main cylinder 15. Above the safety bolt 20, a millimeter scale 24 is placed, which in combination with the centimeter scale 43, renders the exact support height of the hydraulic sheeting support. With the lock on the upper cylinder of the hydraulic sheeting support, the uncontrolled falling out of the upper cylinder 40 from the operational cylinder 18 is prevented. With the option of installing exchangeable upper pedestals 47, it is possible to elevate (and support) various load forms, and using the separate incline-adjustable lower pedestals of the hydraulic sheeting support 50, it is possible to install the same on inclined and uneven surfaces. This removes the fear that the support will twist or break, and affixation or fastening of the safety nut 23 on the upper edge of the main steel cylinder 15 releases long-term exposure to the effects of support loads on the hydraulic jack itself 1.

Description

_

IMPROVED STRUCTURE OP HYDRAULIC SHEETING SUPPORT

Description of invention

The subject invention arose in four inventive phases; for each inventive phase, a separate patent application has been filed. The phases are: (i) a hydraulic sheeting support, HR20070563A, from December 14, 2001, (ii) a scale for reading the supporting height, HR20080049A, from January 29, 2008 (iii) an incline-adjustable lower pedestal of the same sheeting support, HR20080105A, from March 7, 2008 and (iv) a safety lock of the upper cylinder of the mentioned sheeting support, HR20080368A, from July 24, 2008.

Field of Invention

This invention refers to the improved structure of a hydraulic sheeting support used in construction, which is distinguished by a large adjustment capability of the actual status on the place of support as well as the precise monitoring of the supporting process.

Essence of the invention

The subject invention solves various technical problems encountered during the supporting process when executing construction operations. These problems are: elevation (supporting) , exact leveling and fixation of object and structure at larger heights, especially in conditions where greater security is needed, strength, precision support and stability. The improved structure uses a hydraulic jack for elevation and support with a safety nut for fixating the necessary support force or support height. The device includes _

precise measuring scales for the measurement of support heights, exchangeable upper pedestals that are adjustable to the supporting conditions, as _ well as lower pedestals adjustable to the inclination of the support's base. The device possesses implemented locks on the upper cylinder of the hydraulic support, which serve as a safety function for the operator and the operational area.

Previous state of the art

The need for sheeting support in construction emerged during the first construction undertakings of ancient civilizations. However, in modern construction requirements, reliable, precise and safe sheeting support is of exceptional importance for the quality execution of structures.

The applicant identified two solutions that are the most similar technical solutions in comparison to the subject invention.

The technical solution shown in the GB patent published as GB2182081 (John M. Kennedy; William R. Kennedy) has only basic similarities in its structure in comparison with the subject invention. The mentioned solution is based on a structure where the entire sheet support is comprised of three cylinders, whose mutual structure represents a telescope assisted by a hydraulic pump. This construction (with exception of the hydraulic part) does not offer the possibilities exposed in the subject invention; moreover, the said patent from the state of the art does not allow "disburdening" of the hydraulic element, which is an important characteristic of the subject invention. _ _

The next found technical solution is - GB patent application published as GB2012335 (Joseph Maurice Zaidan, et al.) - and represents a hydraulic sheeting support through its structure. In the mentioned technical solution the hydraulic node - the^ jack - is found on the outside of the hydraulic sheeting support and therefore, the distribution of forces and the design of the device itself is disputable. Locking, i.e. securing that the hydraulic jack does not carry the load after it is elevated to a specific height is not resolved in a secure manner. The mentioned technical solution only partially (which refers to the hydraulic node) belongs to the same group of solutions, where other features of the subject invention are not foreshown.

Detailed description of the invention

The subject invention refers to the improved structure of a hydraulic sheeting support.

As shown earlier, the hydraulic sheeting support itself, in regards to currently known hydraulic and mechanical supports, has a built-in specially constructed hydraulic jack positioned coaxially in the body of the support itself. Such a hydraulic support allows easier and quicker elevation, securing and leveling of larger weight at larger fixation heights. It is especially useful for affixing, elevating and leveling secondary structures necessary in construction. The safety nut on the operational cylinder, which performs the support, serves for affixing the given support forces or the support height. The device likewise includes precise measuring scales for measuring the support height. The specially realized possibility of exchanging the upper pedestal allows for adjustment in terms of support, while the custom constructed ^ _

lower pedestal allows for the adjustment of the inclination of the support itself on a slanted or an uneven base. The device, according to the subject invention, possesses integrated locks in the upper cylinder of the hydraulic sheeting support, which solely serve a security function for the operator and the operational area.

The subject invention is shown in figures 1-8 followed by short descriptions.

Figure 1 shows the entire subject invention with all positions that define the invention imprinted thereto.

Figure 2 shows the hydraulic node with the bearing on the lower pedestal.

Figure 3 shows the subject invention with focus on the measurement scale and the disburdening member.

Figure 4 shows the safety mechanism for locking the upper cylinder according to the subject invention.

Figure 5 shows the structure of the lower area - an adjustable lower pedestal that carries the entire subject invention.

The structural details of the creation of the invention are given in detailed consideration of the positions in the mentioned figures.

Construction

Figure 5 and Figure 1 (in the lower area) show the hydraulic sheeting support according to the subject invention, which _ _

with its lower fixed pedestal 2 is fixed upon the knob in the form of a hemisphere 51, which is found on the separate incline-adjustable lower pedestal 50, where the support (or elevation) force is appropriately transferred to the base. Figure 5 thoroughly shows this particular detail, where the bore 52 for the affixation of the incline-adjustable lower pedestal of the sheeting support 50 is noted. The subject invention can be used with or without the lower pedestal 50. If the invention is used without the lower pedestal 50, then the pedestal 2 is affixed directly on the base using the bore 5.

Figure 2 and Figure 1 (in its lower portion) show the hydraulic node reclined on the lower fixed pedestal 2 equipped with bores 5 for the aforementioned affixation and with a slot for the annexation of the lower fixed pedestal 3, which is in accordance with the shape of the knob 51. The hydraulic node is comprised of: the hydraulic jack 1, the bolt of the jack housing 4, the pump housing of the hydraulic jack 6, the pump rams of the hydraulic jack 7, the pump handle of the hydraulic jack 8, the valve of the hydraulic jack 9, the safety valve of the hydraulic jack 10, the piston of the hydraulic jack 11, the washer 12 and the bolt for securing the operational cylinder onto the hydraulic jack 13. The nut 14 that secures the operational cylinder 18 onto the hydraulic jack is secured onto the mentioned bolt 13 through the bore of the operational cylinder 19.

Figure 3 and Figure 1 (in its central portion) show further structural details. The main cylinder 15 in its entirety includes the hydraulic jack 1 where the cylinder 15 with its thread 17 is attached to the bolt 4 in a manner that the main cylinder 15, operational cylinder 18 and piston 11 are _ _

coaxially positioned in respect to the central vertical axis of the hydraulic sheet support 16.

The part that allows the final disburdenment of the hydraulic assembly is shown in Figure 3/ on the operational cylinder 18, immediately above the main cylinder 15, the safety bolt 20 is welded with the upper welded joint 21 of the safety joint and the lower welded joint 22 of the safety joint. The safety nut

23 is winded onto the safety bolt 20. The millimeter scale 24 is implanted above the safety bolt 20. Upon unwinding the safety nut 23 and descending toward the upper edge of the main cylinder 15, the numbers and symbols on the millimeter scale

24 are automatically revealed and it is possible to execute a reading of the scale at eye level, which is aligned with the upper edge of the safety nut 23. The safety ring 25 is welded with a joint 26 above the state millimeter scale 24, which prevents the penetration of liquid, impurities or small objects in between the area of the safety bolt 20 and the safety nut 23, which may interfere with the normal operation of the thread, on which the safety nut 23 moves. The role of the safety nut 23 is to assume the load tolerated by the hydraulic assembly by supporting the upper edge of the main cylinder 15, as will be shown in greater detail in the example of using the device.

Figure 4 and Figure 1 (in its upper portion) show the construction of the safety lock, whose purpose is to prevent the drop of the operational cylinder during manipulation of the device. At the top of the operational cylinder 18, the safety structure is positioned - the lock of the hydraulic sheet support's upper cylinder. On the mentioned top of the operation cylinder 18, the pronged locking cartridge 29 is carefully welded onto the cartridge itself with a welded joint _ _

32. On the top of the operational cylinder 18 itself, an inclination is executed. In the lock bore 29, which is positioned at the bottom of the upper cylinder 40, elements comprising the lock for latching the upper cylinder 40 are inserted. Elements comprising the lock are formed in the manner that the spring 38 is placed on the lock peg 36, followed by the placement of the lock cartridge 34 on the lock peg 36, and the entire resulting assembly is finally placed in the lower lock bore 39. Two oppositely diametric bores 30 are found on the pronged lock cartridge 29, intended for unlatching the lock of the upper cylinder. Bores 41 for the rough adjustment on the upper cylinder are perforated on the upper cylinder 40, at a desirable, but not mandatory distance of 10 cm. In these bores 41, the safety pegs 42 {see figure 1) are placed - for the purpose of the rough adjustment of the height range of the hydraulic sheet support as stated in the subject invention.

On figure 1, it is shown that above each bore 41, a specific number of centimeter scales 43 or other desired scales, e.g. inch and/or feet, is integrated. On the top of the upper cylinder 40, the upper pedestal of the sheeting support 44, which possesses bores for affixation 46, is welded with a joint 45. In the center of the bore of the top of the upper pedestal of the stated sheeting support 44, it is possible to place an upper exchangeable pedestal 47 in the manner that the wedge 48, which serves for affixation of the exchangeable pedestal, corresponds to the dimensions of the mentioned center bore. The upper exchangeable pedestal 47 is secured with the wedge 49 for securing the upper exchangeable pedestal, which passes through the bore on the wedge of the exchangeable pedestal and through the bore 41 for the rough adjustment on the upper steel cylinder. The stated upper _

exchangeable pedestal 47 can be secured with one or more such wedges 49 that pass through the bores 41.

Method of use

The use of such an assembled hydraulic sheet support is relatively simple.

On a flat surface, the hydraulic sheet support is placed under the element in need of support or elevation so that it is fitted onto its lower pedestal 2, which is fixed with pegs, as needed, through bores 5 on the stated flat surface. If the surface is slanted or uneven, on the separate incline- adjustable lower pedestal of the hydraulic sheeting support 50, previously affixed through bores 52 if necessary, the lower fixed pedestal 2 is placed under the subject element of support or elevation. This results in the capability that the hydraulic sheeting support is always perpendicularly positioned regardless of the configuration of the surface, and that the support forces are optimally distributed onto the surface where the sheeting support is placed.

Depending on the desired height, the upper cylinder 40 is pulled from the operational cylinder 18, followed by the placement of the safety peg 42 into the bore 41 for the rough height adjustment on the upper cylinder, which is nearest to the top of the operational cylinder 18. With this action, it is possible to obtain the approximate sheet support height necessary to reach the element of support. This is followed by the standard adjustment of the hydraulic portion - executed by rotating the valve handle of the hydraulic jack 9, which allows the descent of the piston of the hydraulic jack 11. After this, an up-down motion of the pump rams 7 with the pump handle 8 of the hydraulic jack 1 inside the pump housing of the hydraulic jack 6, the piston of the hydraulic jack 11 is raised and thrusts the operation cylinder 18 upwards, which transmits the created hydraulic pressure onto the upper cylinder 40 through the safety peg 42 and elevates the supported element to the desired height.

Upon reaching the desired support or elevation height, the safety nut 23 winded onto the safety bolt 20, and welded with joints 21 and 22 onto the operational cylinder 18, is screwed downward till fastened against the upper edge of the main cylinder 15.

The upper edge of the nut 23 is at this point in line with a number on the millimeter scale 24, which must be added to the number designated on the centimeter scale 43, which is placed on the upper cylinder of the hydraulic sheeting support 40 - all for the purpose of attaining the exact height of the hydraulic sheeting support. Figure 3 shows the hydraulic sheeting support with a height of 359 cm and 5 mm.

After fastening the nut 23, the valve handle of the hydraulic jack 9 is released, which allows the upper edge of the safety steel nut 23 to recline on the upper edge of the main steel cylinder 15 and entirely transfer the supporting force.

With this, the exact desired height of the hydraulic sheeting support is attained and this "operation" ensures that the load does not suppress the piston of the hydraulic jack 11, in the case of a malfunction of the hydraulic jack 1 (its slacking), into the hydraulic jack 1, which leads to the descent of the supported element. -1 -

Depending on the supported or elevated element - the top of the hydraulic sheeting support can be modified. In the central bore of the upper cylinder 40, upper exchangeable pedestals 47 can be inserted, which are affixed with a horizontal wedge 49.

When transporting the hydraulic sheeting support to a construction site or elsewhere, e.g. at greater heights, it is possible that the employee transporting and mounting the hydraulic sheeting support may rotate the sheeting support so that its upper cylinder 40 is turned downward. With this instance, if the lock safety system were not implemented, it would occur that the stated cylinder 40 drops out of the operational cylinder 18 and may eventually injure (or endanger) someone present at or in the vicinity of such an object. Due to this and according to the subject invention, a lock on the upper cylinder of the hydraulic sheeting support is incorporated in the upper cylinder 40, which prevents the cylinder 40 from falling out of the operational cylinder 18.

Incidentally, in the case of rotation (in other conditions) resulting in the upper cylinder 40 falling out of the operational cylinder 18 - the lock on the upper cylinder of the hydraulic sheeting support found in the lock bore 39 aligns with the slot 33 and the spring 38, which is found on the lock peg 36, and pushes out the peg prong 37 and the lock cartridge 34, and they enter the stated slot 33 and hitch onto the prong 31 on the locking cartridge and prevent the falling of the upper cylinder 40 from the pronged locking cartridge 29 as well as from the operational cylinder 18. Where necessary, the upper cylinder 40 can be removed from the operational cylinder 18 in the manner that two pegs are simply inserted through the two diametrically opposite bores 30 for unlatching the lock. With this operation, in the interior of the upper _ _

cylinder 40, the lock cartridge 34 and the peg prong 37 are inserted into the lock bore 39, which enable the prong 37 and the lock bore 39 to no longer be in contact with the prong on the lock cartridge, while in this moment, the upper cylinder 40 can be removed from the steel operational cylinder 18,

Industrial use of the invention

It is best to manufacture the subject invention with suitable steel, however other appropriate materials can be taken into consideration. Joints in the subject invention are welded, however other jointing such as hard soldering and pasting can likewise be used successfully.

The hydraulic sheeting support functions as an independent post that can accept compression forces. Likewise, it can serve as a hydraulic jack where the element of elevation is substantially higher in respect to the anchorage from which it is possible to use an elevation force. Because of the large range of height regulation, the use of the hydraulic sheeting support is vastly suitable in situations where loads are individually elevated to relatively different heights.

The basic advantage over conventional supports is specified with the fact that the device, according to the subject invention, allows rapid assembly/disassembly, precise operation, and installation is simple even on inclined surfaces. It is safe for the installer and those in its operational vicinity and is likewise long-lasting taking into account that it disburdens the hydraulic portion upon installation in a supporting position. _ _

LIST OF REFERENCED TERMS

1. Hydraulic jack

2. Lower fixed pedestal

3. Slot of lower fixed pedestal

4. Bolt of jack housing

5. Bore for affixation of lower fixed pedestal

6. Pump housing of hydraulic jack

7. Pump ramps of hydraulic jack

8. Pump handle of hydraulic jack

9. Valve handle of hydraulic jack

10. Safety valve of hydraulic jack

11. Piston of hydraulic jack

12. Washer

13. Bolt for securing operational cylinder onto the hydraulic jack

14. Nut for securing operational cylinder onto the hydraulic jack

15. Main cylinder

16. Central vertical axis of hydraulic sheeting support

17. Thread on main cylinder

18. Operational cylinder

19. Bore of operational cylinder

20. Safety bolt

21. Upper welded joint of safety bolt

22. Lower welded joint of safety bolt

23. Safety nut

24. Millimeter (or other) scale

25. Safety ring

26. Welded joint on safety ring

27. Bore for affixation of upper cylinder

28. Inclination on top of operational cylinder

29. Pronged locking cartridge 30. Hole for unlatching of lock

31. Prong on locking cartridge

32. Welded joint on pronged cartridge for locking

33. Socket/slot

34. Lock cartridge

35. Bore in cartridge

36. Lock peg

37. Peg prong

38. Spring

39. Lock bore

40. Upper steel cylinder

41. Bore for rough height adjustment on upper steel cylinder

42. Safety steel peg

43. Centimeter (or other) scale

44. Upper pedestal of sheeting support

45. Welded joint on upper pedestal of sheeting support

46. Bore for affixation of upper fixed pedestal

47. Upper exchangeable pedestal

48. Wedge of exchangeable pedestal

49. Wedge for securing upper exchangeable pedestal

50. Separate incline-adjustable lower pedestal of hydraulic sheeting support

51. Knob in the form of a hemisphere

52. Bore for affixation of separate incline-adjustable lower pedestal of hydraulic sheeting support

Claims

, _PATENT CIAIMS

1. The improved construction of a hydraulic sheeting support is hereby characterized by that the mentioned sheeting support is comprised of: a. optional - lower incline-adjustable pedestals 50 that are connected with the lower fixed pedestal 2, which supports the entire hydraulic sheeting support, through its knob 51; b. the hydraulic node found fixed on the pedestal 2, which is comprised of the hydraulic jack 1 with the hydraulic elevation piston 11, positioned coaxially inside the main cylinder 15 with the hydraulic pumps positioned outside the stated main cylinder 15, which drives the hydraulic jack 1; c. the operational cylinder 18, securely connected with the piston 11 of the hydraulic node, where the operational cylinder 18 can be vertically moved in the interior of the main cylinder 15 and where the operational cylinder 18 contains a safety bolt 20, which with the assistance of the safety nut 23 can be fastened so that the nut 23 rests on the edge of the main cylinder 15 where the cylinder 15 assumes the support force; d. the upper cylinder 40, which moves coaxially inside the operational cylinder 18, where the end of the operational cylinder 18 is equipped with a security system to prevent the cylinder 40 from falling out and with a peg 42 for positioning the upper cylinder 40 inside the operational cylinder 18; e. optional - exchangeable upper pedestal 47 with a safety wedge, which is fastened through a bore on the upper pedestal 44 and is securely affixed to the operational cylinder 40, and _ _

f. measurement scales 43 and 24, which show the exact measurement of the length of the hydraulic sheeting support during operation.

2. The improved construction of a hydraulic sheeting support according to claim 1, where the lower incline-adjustable pedestal 50 allows the installation of the sheeting support on inclined surfaces is characterized by that the knob 51 of a desired hemisphere form is securely affixed on the base 50, where the stated knob 51 is laid in a slot 3 of the lower fixed pedestal, and the bores 52 allow the affixation of the mentioned pedestal 50 to the base.

3> The improved construction of a hydraulic sheeting support according to claim 1, characterized by that with the assistance of a bore 5 it is directly connected to the supporting surface without using an incline-adjustable pedestal 50.

4. The improved construction of a hydraulic sheeting support according to any of the aforementioned claim, characterized by that the main cylinder 15 with its thread 17 is affixed to a bolt 4 of the jack housing of the hydraulic jack, which allows, during the raising of the piston 11, coaxial motion of the operational cylinder 18 inside a cylinder 15 affixed in such a manner, where the stated operational cylinder 18 further compresses the upper cylinder 40, where cylinders 15, 18 and 40 are positioned coaxially and execute support via the upper pedestal 44, or optionally, exchangeable pedestal 47.

5. The improved construction of a hydraulic sheeting support according to any of the aforementioned claims, __ _

characterized by that the disburdening node is comprised of a nut 23 and bolt 20 affixed on the operational cylinder 18, where the nut 23 is fitted on the upper edge of the main cylinder 15, where the cylinder 15 assumes the support forces from the hydraulic node and simultaneously, with fastening, shows a precise support level on the scale 24, while the approximate distribution height of support is read on the scale 43 calibrated on the upper cylinder 40, which is secured in its position with a peg 42.

6, The improved construction of a hydraulic sheeting support according to any of the aforementioned claims, characterized by that the safety system preventing the falling of a cylinder 40 is comprised of a pronged locking cartridge 29 and locks on the upper cylinder of the hydraulic sheeting support, which springs into foreseen bores 41 on the cylinder 40 and where the bores 30 serve to free the cylinder 40 from the stated cartridge 29 and the operational cylinder 18.

7. Use of the hydraulic sheeting support according to any of the aforementioned claims, characterized by that it is used in conditions where the exact measurement of supporting height and the adjustability of support on uneven surfaces is necessary, with the use of the lower pedestal 50 and the load supporting/elevation profile, which can be modified with the exchangeable upper pedestal, and likewise when it is necessary for the pressure exerted on the hydraulic jack 1 to be released on long terms due to the hardening of concrete.