JP5403525B2 - Connected structure - Google Patents

Description

  Embodiments of the present invention relate to a connecting structure of an elevator car floor and a work gondola.

  When installing an elevator in a building, a moving temporary work floor (working gondola) is installed in the hoistway before assembling a car or the like in the hoistway.

  For example, the moving temporary work floor is suspended from the vicinity of the top in the hoistway with a driving rope, and the moving temporary work floor is driven up and down by the driving rope (see, for example, Patent Document 1).

  In addition, since it is uneconomical to produce a member of an elevator (hereinafter abbreviated as “main construction”) and a moving temporary work floor that are actually installed in a building by using separate members, sharing is attempted.

  When a part of the main building is used as a moving temporary work floor and both members need to be fixed, the structure must be complicated.

JP 2010-37060 A

  The problem to be solved by the present invention is to provide a connection structure between a simple floor member having good workability and a movable temporary work floor (working gondola) having good workability.

  The connection structure of the embodiment includes a moving temporary work floor suspended by a driving rope suspended from an upper part of a hoistway of a moving temporary work apparatus used for elevator installation work, and the moving temporary work floor. A connecting structure for connecting a lower floor to a permanent floor, which is pivotally attached to a lower side surface of the moving temporary work floor, hooks a key claw portion on an outer frame of the permanent floor, and It has a key claw mechanism that connects the floors so as to grab the floor.

It is a typical elevation view which shows the outline | summary of one Embodiment of a movement temporary work apparatus. It is a schematic sectional drawing which shows the connection structure which concerns on this embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same portions are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a schematic elevation view showing an outline of an embodiment of a mobile temporary work device according to the present invention.

As shown in FIG. 1, two guide rails 13 are extended and fixed along the side wall in the hoistway 11 with a space therebetween. Further, a beam-like suspension base 14 extending in the horizontal direction is installed near the top of the hoistway 11.

  Two driving ropes 15 are suspended from the suspension source 14, and the moving temporary work floor 16 is suspended by these driving ropes 15. As the moving temporary work floor 16, a car floor of a main car is used. The moving temporary work floor 16 extends in the horizontal direction, and two drive winders 17 are fixed at intervals. The two driving ropes 15 are wound around the respective driving winders 17, and when the driving winder 17 winds up the driving rope 15, the moving temporary work floor 16 is raised, and conversely, the driving winder 17 is wound. The moving temporary work floor 16 is lowered by feeding out the taken drive rope 15. The moving temporary work floor 16 is disposed so as to be sandwiched between the two guide rails 13.

  A suspension tool 18 is suspended from the suspension element 14, and a single safety device rope 19 is suspended from the suspension element 18. A slack portion 20 is provided at the upper portion of the safety device rope 19, and the safety device rope 19 extends below the slack portion 20 through the vicinity of the rope gripping tool 21.

  A work floor handrail 25 is mounted on the movable temporary work floor 16, that is, the main car floor, and a rope gripping tool 21 that engages with the work floor handrail 25 is disposed.

  Below the movable temporary work floor 16, a lower beam 28 of a permanent car is attached, and a safety device 29 is attached to the lower part of the lower beam 28. The safety device 29 includes a safe operation arm 30 that is pulled up by pulling up the rope gripping tool 21, and a braking member 31 that is driven by the safe operation arm 30. The braking member 31 is driven by the safe operation arm 30 when the rope gripping tool 21 is pulled up, and is pressed against the two guide rails 13 to stop the moving temporary work device 12 from dropping.

  In the moving temporary work device 12 having the above-described configuration, the moving temporary work floor 16 is lifted by winding the drive rope 15 by the drive winder 17 in the normal state. The temporary work floor 16 is lowered. At this time, the rope gripping tool 21 is not gripping the safety device rope 19 and the safety device 29 is not working.

  If the moving temporary work floor 16 suddenly drops at a speed exceeding a predetermined speed due to breakage of one or two of the two driving ropes 15, the rope gripper 21 detects the falling speed and is safe. Grab the device rope 19. As a result, tension is applied to the safety device rope 19, the safety operation arm 30 of the safety device 29 is pulled up and operates, and the braking member 31 is pressed against each of the two guide rails 13. Thereby, the fall of the moving temporary work floor 16 can be stopped.

  The safety device rope 19 extends in the vertical direction near the rope gripping tool 21, and the rope gripping tool 21 and the safety device rope 19 do not interfere with each other at normal times. The work floor handrail 25 is provided with a plurality of long holes (not shown) that are vertically long, and a plurality of bolts (not shown) that are fixed to the rope gripper 21 and have a horizontal axis pass through the long holes. doing. With this structure, the work floor handrail 25 and the rope gripper 21 are relatively slidable in the vertical direction by the length of the long hole.

  The rope gripper 21 has a function of detecting the descending speed exceeding a predetermined value and gripping the safety device rope 19.

  The slack portion 20 is obtained by winding the safety device rope 19 in a coil shape for a predetermined length and stopping it with a binding tool (not shown). When the safety device rope 19 is pulled with a strength exceeding a predetermined tensile strength, the safety device rope 19 wound in a coil shape can extend linearly.

  In this embodiment, the main floor 40 and a part of the moving temporary work floor 16 are shared. When such a part of the member is shared, a conventional temporary construction method is often fastened and fixed with a working temporary floor to the standing frame of the permanent car with a bolt. In such a case, it is necessary to process a connection hole in the establishment frame in advance, or to manufacture a temporary floor according to the main structure, resulting in a complicated structure.

  On the other hand, in the present embodiment, the temporary floor 16 is carried on the permanent floor 40, and the key claw-shaped coupling mechanisms 41 are arranged at a total of four locations on the lower side surface of the temporary floor 16. Thus, the work efficiency can be improved by connecting the main floor 40 and the moving temporary work floor 16.

  FIG. 2 is a schematic cross-sectional view showing the connection structure according to the present embodiment, FIG. 2 (a) is a schematic cross-sectional view showing the key claw mechanism when not in use, and FIG. FIG. 2 (c) is a schematic cross-sectional view showing the way of using the key claw mechanism. The key claw-shaped coupling mechanism 41 has an L-shaped substantially cross-section, and its end on the short piece side is bent upward.

  The key claw portion is hooked on the outer frame of the permanent floor 40 so that the permanent floor 40 is picked up. For example, it is preferable that the key claw mechanism 41 is provided with a thumbscrew mechanism 42 for folding back at least about 180 ° and folded when the key claw mechanism 41 is not used. Other than the thumbscrew mechanism 42, for example, a lock pin mechanism may be used.

  In the present embodiment, some members are shared. For example, it is preferable to share a car floor, a car frame, a part of a safety device, and a drive winder.

  According to the present embodiment, it is possible to obtain a connection structure between a simple floor member having good workability and a movable temporary work floor (work gondola).

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 11 ... Hoistway 12 ... Moving temporary work apparatus 13 ... Guide rail 14 ... Hanging origin 15 ... Driving rope 16 ... Moving temporary work floor 17 ... Driving winder 18 ..Hanging tool 19 ... Safety device rope 20 ... Loose part 21 ... Rope gripping tool 25 ... Work floor handrail 28 ... Lower beam 29 ... Safety device 30 ... Safety Operating arm 31 ... braking member 40 ... main floor 41 ... key claw mechanism 42 ... wing screw mechanism

Claims (8)

A temporary moving work device used for elevator installation work, which is suspended by a driving rope suspended from the upper part of the hoistway, and a permanent floor located below the movable temporary work floor. A connecting structure for connecting
A connecting structure having a key claw mechanism that is pivotally attached to a lower side surface of the movable temporary work floor and that hooks a key claw portion on an outer frame of the permanent floor to connect the permanent floor so as to grab the permanent floor.   The said key claw mechanism is a connection structure of Claim 1 attached to four places on the lower side surface of the said movement temporary work floor.   The key claw mechanism is configured such that when the moving temporary work floor and the main floor are not connected, it can be folded back on the lower side surface of the moving temporary work floor and screwed to the side surface of the moving temporary work floor with a thumbscrew. The connecting structure according to claim 1 or claim 2, wherein:   The key claw mechanism is configured to be able to be folded back at the lower side surface of the moving temporary work floor and fixed to the side surface of the moving temporary work floor with a lock pin when the moving temporary work floor and the main floor are not connected. The connecting structure according to any one of claims 1 to 3.   The connection structure according to any one of claims 1 to 4, wherein the key claw mechanism has an L-shaped substantially cross section and an end portion on a short piece side is bent upward.   The connecting structure according to any one of claims 1 to 5, wherein the connecting structure is used in a permanent construction method that shares an elevator car floor, a car frame, a part of a safety device, and a drive winder.   The connection structure according to any one of claims 1 to 6, wherein the key claw mechanism is configured to be rotatable at least 180 ° on a lower side surface of the movable temporary work floor. The connection structure according to claim 6, wherein the moving temporary work floor includes a floor of the car and a lower beam constituting a lower portion of the car floor.

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