JP2540146Y2 - Elevating cage scaffold plate device - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a scaffold plate attached to an elevator cage capable of moving up and down a wall surface, which can enter and exit both sides parallel to the wall surface from the floor surface, and provide a small work platform to a worker on board. It concerns the device.

[0002]

2. Description of the Related Art An elevator capable of moving up and down along a vertical rail by mounting a sprocket meshing with a pinion and a drive source thereof on a wall provided with a vertical rail and a pinion rack is known. Since the original purpose is to raise and lower the worker who carries some work implements, the cage bottom plate is limited to an extremely small area.

[0003] However, as an application of the elevator, there are often cases where it is desired to perform a simple operation while stopping the elevation or continuing the elevation. For example, when digging a hole for burying a power transmission tower leg, the hole diameter often reaches about 3 m and the hole depth is about 30 m. Therefore, as shown in FIG. A vertical rail R and a pin rack P are provided eccentrically from the center of the hole, so that the cage C is moved up and down. Workers on the cage need to unravel multiple ropes suspended in the central space or need to transfer to other devices near the lifting space, and dangerous movements when the distance between the floorboard and the object is large Will be forced. If a sufficient area is given to the floorboard, collision with other members projecting from the side in the lift space may occur. It has been desired that the area of the bottom plate be kept to a minimum and the area can be enlarged as necessary.

[0004]

According to the present invention, a scaffold plate is provided on a floor panel of a cage so that it can be easily pulled out and re-stored as necessary.

[0005]

FIG. 4 will be described again by taking an example of the work for burying a steel tower leg. A ladder-like body composed of a vertical rail R and a pin rack P is vertically fixed to the cross beam B fixed to the upper surface of the hole. The cage C is L-shaped by the floor plate 1 and the back plate 2 and includes a sprocket (not shown) and a motor. The cage C moves up and down while holding the rail by engaging the sprocket and the pin rack P. As shown in FIGS. 1 and 2, the scaffolding device attached to this cage comprises a U-shaped guide 3 fixed to opposite lower left and right ends of the bottom plate 1 and a scaffold plate 4 supported to be able to enter and exit the guide. Rollers 4a are provided on the scaffold plate to facilitate access. The scaffold plate 4 and the guide 3 are the same length, and the scaffold plate 4 is used for a scaffold by extracting a little less than half. At the left and right ends of the bottom plate, retaining pieces 5 are pivotally attached to suspend the scaffold plate 4 when stored. A stopper 6 is attached to the scaffold 4 as shown in FIG.

The stopper 6 has an elongated hole 6a at one end, and a hook 6b at the other end, and is pivotally connected to the side surface of the scaffold plate by the elongated hole 6a with a shaft 4b. Locking pins 7 are fixed to the columns of the cage corresponding to the hooks 6b. When the stopper 6 is pulled out to the full length of the elongated hole, the hook 6b can be engaged with the pin 7. The worker moves from the cage in the direction of the wall surface of the hole or moves out of the frame depending on the position with respect to the object, so that the pulled-out scaffold plate always tries to be returned to the storage side. Therefore, there is no possibility that the engagement between the hook portion 6b and the pin 7 is released.

[0007]

[Effect] In the middle of the cage hoistway, if necessary, release the retaining piece on one side, pull out the scaffold plate, and attach the stopper 6 to the pin 7
To engage. The scaffold can be pulled out in both left and right directions. The operator can easily move in the left-right direction from the cage and move on the floorboard, and can safely perform work during the ascent and descent. Freed from cramped floorboards, it can operate safely on scaffolding boards.

[0008]

[Brief description of the drawings]

FIG. 1 is a side view of the device.

FIG. 2 is a front view of the device.

FIG. 3 is a perspective view of a scaffold.

FIG. 4 is an explanatory view of a work for hole for a tower leg.

[0009]

[Explanation of symbols]

 Reference Signs List 1 floor plate 2 back plate 3 guide 4 scaffold plate 5 retaining piece 6 stopper 7 pin R vertical rail P pin rack C cage

Claims (1)

(57) [Scope of request for utility model registration] 1. A U-shaped guide which is attached to a cage which has a bottom plate and a back plate and can be moved up and down along a vertical rail near a wall surface, and is provided opposite to both front and rear ends of the bottom plate, and a scaffold supported so as to be able to enter and exit the guide. Plate, a retaining piece pivotally suspended at one end at the front and rear ends of the bottom plate and capable of coming into contact with the scaffold plate at the other end, and a long hole formed at one end, and the other end is formed in a hooking portion, and the center of the scaffold plate is formed by the long hole. A scaffold plate device for a lifting cage, comprising: a stopper pivotally attached to a side of the vicinity and capable of being locked to a pin on a side of the cage back plate by a hook portion.