JPS625439Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an elevator handrail device that is installed around a deck opening such as an exposed area and that rises or descends in conjunction with the lifting and lowering action of the elevator.

2. Description of the Related Art Conventionally, handrail devices have been provided as a safety measure around openings for raising and lowering elevators provided, for example, on cargo loading/unloading decks of ships. however,
The permanently installed handrail devices mentioned above interfere with various operations, especially on ships where quick and safe work is required in narrow spaces, so handrail posts are either foldable or removable, but elevators are It had to be removed each time it was lifted, reducing work efficiency and causing various operations to be carried out in unsafe conditions.

In order to solve the above problems, this invention
When the elevator is descending, the handrail post rises around the opening on the deck and serves as a safety measure, and when the elevator ascends, the handrail post is no longer needed, so the force when the elevator rises is reduced. In other words, to provide an elevator handrail device that can automatically move the handrail column up and down in conjunction with the ascent and descent of the elevator.

An embodiment of the present invention will be described below based on the drawings. In the drawing, reference numeral 1 indicates an elevator that ascends and descends within a trunk (not shown) provided at the opening of the loading/unloading deck 2 for cargo, and a guide pipe 4 made of a cylindrical body is installed vertically on a side wall 3 below the loading/unloading deck 2. A counterweight 5 having an appropriate weight is built into the guide tube 4, and a stopper 6 fixed to the upper part of the counterweight is attached to the side surface.
A guide groove 7 is provided to guide the vertical movement. Frames 8 and 9 are attached to the back surface of the deck 2 and the lower part of the side wall 3 above the guide tube 4, respectively, and an upper pulley 10 and a lower pulley 11 that rotate around an axis are attached to these frames 8 and 9. An upper cable 12A and a lower cable 12B are arranged in a circle between both ends of the counterweight 5 and the upper and lower pulleys 10 and 11, and one end of the lower cable 12B and a handrail post 15 are arranged in a circular manner.
A tension spring 13 is interposed between the lower end and the lower end.

Furthermore, a handrail post 15 that can be raised and lowered is provided in parallel between the guide tube 4 of the counterweight 5 and the side wall 3, and a cap 16 with a packing 14 attached inside is attached to the upper end of the handrail post 15. A removable handrail rope 18 is connected to the cap 16 via a locking hardware 17,
A collar body 19 that serves as a stopper when the handrail post 15 rises is fixed to the lower end, and a plate body 20 is attached to intersect with the axis, and this plate body 20 is connected to the upper rope 12A and the tension spring 13. ing.

Further, when the handrail post 15 is located on the loading/unloading deck 2, in order to support the horizontal force caused by, for example, a worker or an object leaning on the handrail post 15, a plurality of upper and lower pairs that can be supported at at least two points are set. The guide rollers 21 and 22 of the loading/unloading deck 2
It is provided on the upper part of the back side wall 3.

Next, to explain the operation, normally the top of the loading platform of the elevator 1 is connected to the loading/unloading deck 2 as shown by the solid line.
It has stopped rising on the surface. When the elevator 1 begins to descend, the counterweight 5 in the guide tube 4 descends from position A indicated by the dotted line to position B indicated by the imaginary line, and a circular The handrail post 15 connected to the upper and lower cables 12A, 12B begins to rise. This handrail post 15 is the loading/unloading deck 2
When the handrail post 15 rises to position C indicated by the two-dot chain line above, the collar body 19 provided at the lower part of the handrail post 15 hits the guide roller 22 and stops. At that point, the bracket 23 on the lower side of the elevator 1 and the stopper 6 on the upper part of the counterweight 5 separate, and only the elevator 1 descends. That is, when the elevator 1 is descending, the handrail pillars 15 are erected on the deck 2, and the ropes 18 are secured to each pillar 15 around the opening as shown in the imaginary line, thereby functioning as a handrail. can. Furthermore, due to the action of the counterweight 5 having an appropriate weight, the handrail post 15 will not fall even if a load is applied in the vertical direction of the handrail due to a worker or an object leaning against it, and the handrail post 15 will not fall in the horizontal direction. Loading/unloading deck 2 for power
Since a plurality of sets of guide rollers 21 and 22 are provided on the back side wall 3 and are supported at at least two points, it will not fall down.

Further, as the elevator 1 ascends, the bracket (protrusion) 23 with a loading platform comes into contact with the stopper 6 on the upper part of the counterweight 5, pushing up the counterweight 5, and conversely, the handrail post 15 descends below the deck. When the elevator 1 rises close to the loading/unloading deck 2, a gasket 14 provided on the inner surface of the cap 16 at the top of the handrail post 15 hits the upper surface of the deck 2 and acts as a stopper.

When the elevator 1 further rises, the tension spring 13 attached to the lower part of the handrail post 15 expands, and the gasket 14 at the top of the handrail post 15 is compressed by the tensile force and becomes watertight. Further, by providing the tension spring 13, it is possible to improve the manufacturing accuracy of the elevator 1 loading platform, absorb the elongation of the rope 12 engaged in a circular shape, and the installation error of the counterweight 5.

According to the present invention explained in the above embodiment, there is a handrail post that moves up and down to appear and disappear from the loading/unloading deck, an upper pulley provided below the loading/unloading deck, and a lower part installed on the side wall below the storage state of the handrail pillar. Pulley 11 and
A counterweight arranged to be able to move up and down along the handrail post below the loading/unloading deck, and an upper cable whose one end is connected to the upper end of the counterweight and the other end is connected to the lower end of the handrail post via an upper pulley. and a lower cable, one end of which is connected to the lower end of the counterweight and the other end of which is connected to the lower end of the handrail post via a lower pulley, which is attached to the upper part of the counterweight and which a projection on the elevator side abuts from below. The handrail post is constructed so that it can rise or fall onto the deck in conjunction with the lifting and lowering action of the elevator, so that when the elevator descends, the handrail post stands on the deck. The handrail is installed on the deck and serves as a handrail as a safety measure. Also, when the elevator goes up, the handrail is not needed and it descends below the deck, so the handrail on the deck can be raised and lowered automatically. At the same time, the work efficiency can be improved. Furthermore, when the handrail post is erected on the deck, it is effective for safety because it will not fall or fall if a worker or an object leans on it.

[Brief explanation of the drawing]

The drawing is a front view showing an embodiment of the present invention. 1... Elevator, 2... Loading/unloading deck, 3...
...Side wall, 4...Guide tube, 5...Counterweight, 6...Stopper, 8, 9...Frame, 10...
...Upper pulley, 11...Lower pulley, 12A...Upper cable, 12B...Lower cable, 13...Tension spring, 1
4...Putskin, 15...Handrail post, 18...Rope, 19...Brim body, 21, 22...Guide roller.

Claims (1)

[Scope of utility model registration request] A cargo handling trunk is configured below the cargo loading/unloading deck 2, and the handrail post 15 around the deck opening is linked in accordance with the lifting and lowering of the elevator 1, and the cargo handling trunk moves up and down to appear and disappear from the loading/unloading deck. The handrail post 15, the upper pulley 10 provided below the loading/unloading deck 2, the lower pulley 11 provided on the side wall 3 below the storage state of the handrail post 15, and the vertical movement along the handrail post 15 below the loading/unloading deck 2. A freely arranged counterweight 5; an upper cable 12A having one end connected to the upper end of the counterweight 5 and the other end connected to the lower end of the handrail post 15 via the upper pulley 10; and one end connected to the counterweight 5.
A lower rope 1 is connected to the lower end of the handrail post 15 and the other end is connected to the lower end of the handrail post 15 via the lower pulley 11.
2B, and a stopper 23 that is attached to the upper part of the counterweight 5 and that a projection 23 on the elevator 1 side comes into contact with from below.