PLATFORM UNIT HAVING LIFT-OFF PROTECTION AND METHOD FOR SECURING A PLATFORM UNIT AGAINST LIFT-OFF AND METHOD FOR RELEASING A PLATFORM UNIT SECURED AGAINST LIFT-OFF

• US 20100326771A1
• Filed: 12/17/2008
• Published: 12/30/2010
• Est. Priority Date: 03/19/2008
• Status: Abandoned Application

• Current Assignee: Wilhelm Layher Verwaltungs GmbH
• Original Assignee: Wilhelm Layher Verwaltungs GmbH
• Inventors: Kreller, Helmut
• Application Number:
  US12/735,893
• Publication Number:
  US 20100326771A1
• Time in Patent Office: Days
• US Class Current: 182/222
• CPC Class Codes: E04G 1/154 Non-detachably fixed and secured connections between platform and scaffold
• CPC Class Codes: Y10T 74/20612 Hand

Abstract

A coating unit (20), comprising a lift-off protection (25) that is fastened in a face end region (21) of the coating unit (20) and is formed by a securing pivot lever (26), which can be manually pivoted about a pivot axis (27), which in the usage position (22) of the coating unit (20) is vertical, from an open position, in which the coating unit (20) can be placed onto a horizontal carrier (30) or lifted off therefrom, into a closed or lift-off protection position (31), and vice versa, in which the coating unit (20) is secured against lift-off from the carrier (30) when it is placed on the carrier (30). At least in the closed or lift-off protection position (31′) thereof, the securing pivot lever (26) is secured by a spring-elastic detent element (35) against accidental pivoting about the pivot axis (27) in an engagement position (29) such that pivoting of the securing pivot lever (26) about the pivot axis (27) from the closed or lift-off protection position (31) into the open position is only possible by applying an increased pivoting force. The invention also relates to a method for securing a coating unit (20) against lift-off from a carrier (30) and to a method for releasing a coating unit (20) that is secured against lift-off.

Claims

1-29. -29. (canceled)

30. Platform unit having at least one lift-off protection (25) attached in a face end region (21) of the platform unit, configured with a securing pivot lever (26) that can be pivoted manually about a pivot axis that is vertical in the usage position (22) of the platform unit, from an open position (28), in which the platform unit (20) can be laid onto or lifted off from a horizontal carrier, into a closed or lift-off protection position (31), and vice versa, in which the platform unit (20), when it is laid onto the carrier (30), is secured against lift-off from the carrier (30), whereby the securing pivot lever (26), at least in its closed or lift-off protection position (31), is secured to prevent unintentional Pivoting about the pivot axis (27), by means of a spring-elastic detent element (35), with the formation of a shape-fit engagement, in a first engagement position (29), and whereby the securing pivot lever (26) has a first lever arm (37.1) that extends away from the pivot axis (27) in a first direction (36.1), transverse, and a second lever arm (37.2) that extends away from the pivot axis (27) in a second direction (36.2), transverse, wherein

the detent element (35), which is configured to be movable relative to the second lever arm (37.2), in the direction of the pivot axis (27), with a pressure piece (50) acted on by means of a spring, and is disposed at a distance from the pivot axis (27), is attached or mounted in or on the second lever arm (37.2), or attached or mounted in or on a part of the platform unit provided in a face end region of the platform unit, and engages resiliently on the second lever arm, and wherein the pressure piece (50) is engaged, with shape fit, in the engagement position (29, 32), acted on by the force of the spring, in an opening of the platform unit (20) disposed at a distance from the pivot axis (27), so that then, pivoting of the securing pivot lever (26) about the pivot axis (27) from the closed or lift-off protection position (31) into the open position (28) is possible only when an increased pivoting force is applied.

31. Platform unit according to claim 30, wherein the securing pivot lever (26) is additionally secured to prevent unintentional pivoting about the pivot axis (27), also in its open position (28), by means of a or the spring-elastic detent element (35), with the formation of a shape-fit engagement, in a second engagement position (32), in such a manner that pivoting of the securing pivot lever (26) about the pivot axis (27), from the open position (28) into the closed or lift-off protection position (31), is only possible when an increased pivot force is applied.

32. Platform unit according to claim 30, wherein the securing pivot lever (26) carries the detent element (35) that is attached or mounted on or in it.

33. Platform unit according to claim 30, wherein the detent element (35) is engaged, with shape fit, in an opening of the platform unit (20), in the engagement position (29, 32), in each instance, or in every engagement position.

34. Platform unit according to claim 30, wherein at least one first opening (40.1) for engagement of the resilient detent element (35) in a or the securing engagement position (32) of the securing pivot lever (26) and at least one second opening (40.2) for engagement of a or of the resilient detent element (35) in a or the open engagement position (29) of the securing pivot lever (26) are provided in a part (41) of the platform unit (20) provided in the face end region (21) of the platform unit (20), whereby the openings (40.1, 40.2) are disposed, in each instance, at a distance from the pivot axis (27) and at a distance from one another, as well as offset relative to the pivot axis (27), by a circumference angle (44), relative to one another.

35. Platform unit according to claim 30, wherein the spring (49) and the pressure piece (50) are accommodated in a cavity (53) of a hollow body (52), which has an overlap part (54) that secures the pressure piece (50) to prevent it from falling out, which part overlaps the cavity (53), whereby the pressure piece (50) lies against the overlap part (54), acted on by the spring force of the spring (49), with the formation of pressure forces (55).

36. Platform unit according to claim 35, wherein the hollow body (52) that contains the spring (49) and the pressure piece (50) is attached in an opening or bore (56).

37. Platform unit according to claim 30, wherein the securing pivot lever (26) has at least one first stop (62.1), which prevents further pivoting of the securing pivot lever (26) when the securing pivot lever (26) is pivoted about its pivot axis (27) in a first pivot direction (63.1), from an or the open position (28) into the closed or lift-off protection position (31), in this first pivot direction (63.1), beyond the closed or lift-off protection position (31), into a further open position

38. Platform unit according to claim 30, wherein the securing pivot lever (26), if applicable in addition, has a second stop (62.2), if applicable, which prevents further pivoting of the securing pivot lever (26) when the securing pivot lever (26) is pivoted about its pivot axis (27) in this second pivot direction (63.2), if applicable, from the closed or lift-off protection position (31) into an or the open position (28), in this second pivot direction (63.2), if applicable.

39. Platform unit according to claim 37, wherein the first stop (62.1) and the second stop (62.2) are part of a common stop body (64) of the securing pivot lever (26).

40. Platform unit according to claim 37, wherein the first stop (62.1) and the second stop (62.2) are disposed on the securing pivot lever (26) in such a manner, and wherein the securing pivot lever (26) is disposed and mounted on a part (41) of the platform unit (20), in such a manner that the securing pivot lever (26) can be pivoted about a pivot angle (65) of maximally 180 degrees about its pivot axis (27).

41. Platform unit according to claim 30, wherein it is laid onto or suspended on at least two horizontal carriers (30) of a scaffold, a podium, a staircase, a stage, or a similar support construction or a similar spatial support structure, and has at least one such securing lever (26), in each instance, on two of its face end regions (21) that extend away from one another, in opposite directions.

42. Method for securing a platform unit (20) against lift-off from a horizontal carrier (30), wherein a platform unit (20) configured according to claim 30 is pivoted, using a lift-off protection (25) formed by a securing pivot lever (26), by means of manual pivoting of the securing pivot lever (26) about a pivot axis that is vertical in the usage position (22) of the platform unit (20), from an open position (28), in which the platform unit (20) can be laid onto the horizontal carrier or lifted off from it, into a closed or lift-off protection position (31) after the platform unit (20) has been laid onto or suspended onto the carrier (30), and also into a securing engagement position (32), in which, during the course of manual pivoting of the securing pivot lever (26) about its pivot axis (27), a spring-elastic detent element (35) brings about shape-fit engagement of the securing pivot lever (26), so that then, the securing pivot lever (26) can be pivoted out of its closed or lift-off protection position (31) into the open position (28) only when an increased pivot force is applied.

43. Method for releasing a platform unit (20) configured according to claim 30, which is secured against lift-off from a horizontal carrier (30), using a lift-off protection (25) formed by a securing pivot lever (26), wherein the securing pivot lever (26), proceeding from a closed or lift-off protection position (31), in which the platform unit (20) is secured against lift-off from the carrier (30), with the formation of a shape-fit engagement, brought about by means of a spring-elastic detent element (35), in a securing engagement position (32), the securing pivot lever (26) is pivoted manually, with the application of an increased pivot force and with simultaneous unlocking of the resilient detent element (35), about a pivot axis that is vertical in the usage position of the platform unit, from the closed or lift-off protection position (31), into an open position (28), in which the platform unit (20) can be lifted off from the carrier (30).

44. Method according to claim 43, wherein during the course of the manual pivoting of the securing pivot lever (26) about its pivot axis (27), from the closed or lift-off protection position (31) into the open position (28), then a spring-elastic detent element (35) or the spring-elastic detent element (35) brings about shape-fit engagement of the securing pivot lever (26) in an open engagement position (29), so that then, the securing pivot lever (26) can be pivoted out of this open position (28) only when an increased pivoting force is applied.