JPH036310B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevating and rotating door that has both a security function and a cargo handling function.

To explain a conventional general improved building based on Fig. 1, the entrance 2A of the factory building 1A is equipped with sliding or double-sided doors 3A and 3A for crime prevention. At the top of the
Traveling rail 4 laid in the longitudinal direction of factory building 1A
Overhead crane 5A for cargo handling running on A, 4A
is installed. When loading and unloading cargo into and out of the factory building 1A, a truck is entered into the factory building 1A through the entrance/exit 2A and the cargo is handled using the overhead crane 5A, or the runway girder of the overhead crane 5A (Fig. (not shown) is extended to the outside of the factory building 1A, and cargo handling is carried out using the so-called yard method.

However, near the entrance 2A in the factory building 1A, there is a dead space 6A (shaded area) where cargo cannot be handled by the overhead crane 5A, and furthermore, if a path for the truck is provided inside the factory building 1A, it becomes impossible to carry out cargo operations. A dead space is created,
This is an obstacle to the effective use of the factory building, and there is also the problem that extending the runway girder of the overhead crane 5A to the outside of the factory building 1A will increase equipment costs.

In view of the above-mentioned problems of the conventional technology, the present invention not only provides the original security function of the door, but also has a cargo handling function, thereby reducing the dead space near the entrance of a factory building as much as possible and expanding the cargo handling range. The purpose of the present invention is to provide a lift-and-lower swing door that can be moved up and down.

The purpose of this is to engage a guide rail erected near the entrance of a building and a door body that is supported by the guide rail so as to be able to move up and down and turn. and,
The door body is provided with an elevating means for raising and lowering the door body along the guide rail, a hoisting machine suspended from the lower surface of the door body so as to be freely movable, and an opening/closing regulating means for regulating opening and closing of the door body. This is achieved by a lift/swivel door featuring:

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIGS. 2 to 5 show a lift-and-lower swing door according to the present invention. In these figures, reference numeral 1 denotes a cylindrical guide rail installed vertically near the entrance of the factory building 2, one end of which is on the ground 3, and the other end is attached to a pillar of the factory building 2 or inside the factory building 2. They are each firmly fixed to a bracket 7 protruding from a runway girder 6 of an overhead crane 5 installed at the top.

Reference numeral 8 denotes a door body, which includes a door member 9 formed in the shape of a frame body, a large number of vertical lattices 10, 10 fixed at fixed pitches between the upper and lower sides of the door member 9, and a horizontal grid on the lower side of the door member 9. A rail member 14 is fixedly attached to the rail member 14. By selecting the door member 9 and the vertical lattice 10 having appropriate cross-sectional sizes, the door body 8 has high rigidity as a whole in conjunction with the reinforcing structure by the vertical lattice 10. Door body 8
A pair of upper guide rollers 11, 11 and a pair of lower guide rollers 1 are provided on the door member 9 at one side end.
2 and 12 are rotatably attached, and the door body 8
The door member 9 at the other end has a pass door 1 for people to enter and exit.
3 is rotatably attached.

Such a door body 8 has upper and lower guide rollers 11,
It engages with the guide rail 1 via 12 and is supported in a cantilever manner. As shown in detail in FIGS. 4 and 5, its support structure consists of two upper guide rollers 11, 11 and two lower guide rollers each having an arcuate groove equal to the arc of the cylindrical guide rail 1. 12, 12, and the guide rail 1 is held between these upper and lower guide rollers 11, 12, so that the door body 8 is provided with the guide rail 1.
It is possible to smoothly move up and down and turn (indicated by arrow C in FIG. 4) along the following directions. Note that 17 in Figure 4
is a second sheave for winding a wire rope, which will be described later.

The means for lifting and lowering the door body 8 includes a lifting winch 15 attached to the upper side of the door member 9 near the guide rail 1, a first sheave 16 attached to the bracket 7, and an upper guide roller 11. The second sheave 17 attached to the bracket
The first and second sheaves 1 are pulled out from the drum (not shown) of the lifting winch 15.
It consists of a wire rope 18 which is passed around between 6 and 17 several times and then fixed to the bracket 7 at the other end. Then, by operating a push button switch (not shown) or the like, the drum of the lifting winch 15 is driven to wind up or unwind the wire rope 18.
The door body 8 moves up and down along the guide rail 1 and
It is appropriately positioned at the solid line position and the two-dot chain line position shown in the figure. The range in which the door body 8 can be moved up and down is regulated by a limit switch (not shown). Further, the first sheave 16 is configured so that its direction can follow the rotation of the door body 8, and the door body 8 can be smoothly raised and lowered from any direction.

Reference numeral 19 denotes a hoisting machine for hoisting and hoisting a load, which is suspended so as to be movable along the rail member 14.
This hoisting machine 19 consists of a small electric hoist or an electric winch, and travels along the rail member 14 by a traveling electric motor 19a equipped with a traveling brake. The configuration of this hoist 19 includes an electric motor (not shown), a reducer that reduces the rotational force of the electric motor, and a drum that is driven by the reduced rotational force.
This is a conventionally known device consisting of a wire rope wound around the drum and a magnetic brake that applies braking force to the drum. Note that 23 is a hook block suspended from the wire rope of the hoist 19.

Further, below the tip of the rail member 14, opening/closing regulating means is provided for regulating opening/closing of the door body 8 when the door body 8 stops at the lower limit stop position. This opening/closing regulating means is not particularly limited as long as it regulates the opening/closing of the door body 8; and an insertion hole 21 for receiving a pin 20 therein. By providing this opening/closing regulating means, the tip of the pin 20 can be inserted into the insertion hole 20.
If the pin 20 is inserted into the lock, the rotation of the door body 8 will be restricted, and if the pin 20 is locked in this state, it will be useful for locking the door at night.

In addition, 22 is a pull cord suspended from the rail member 14, and is used when the door body 8 turns.

Elevating and descending swing doors with such a configuration are usually installed in pairs on the left and right sides at the entrances and exits of factory buildings, and their function will be explained below.At night, the door body 8 is moved to the position indicated by the solid line in Figure 2 for security purposes. Lower it, insert the pin 20 into the insertion hole 21 and lock it,
People will use Kuguni door 13 to enter and exit. When the door is opened and closed, the door can be used as a double door by releasing the lock and raising the pin 20.

On the other hand, when the door body 8 is used for cargo handling, if the elevating winch 15 is energized by operating a push button switch (not shown) or the like, the wire rope 18, one end of which is fixed to the elevating winch 15, is connected to the drum (see the figure). (not shown), and the door body 8 rises along the guide rail 1 to the position indicated by the two-dot chain line in FIG. Then, a sling tool (not shown) that is hung around the suspended load is hung on the hook block 23 of the hoist 19 suspended from the rail member 14, and the load is hoisted and lowered. The hoisting machine 19 runs along the rail member 14 of the door body 8, and the door body 8 rotates around the guide rail 1 by operating the pull string 22 or pushing the hanging load, so it is a so-called wall-mounted jib crane. Cargo handling can be performed by operating the door body 8 like a horizontal swing arm. At this time, the vertical load acting on the door body 8 (the weight of the door body 8 and the load of the hanging load suspended by the hoisting machine 19) is borne by the wire rope 18, while the bending load is borne by the door body 8. itself and guide rail 1
Although the load is borne by the guide rollers 11 and 12, since the door body 8 itself has high rigidity, there will be no major deviation or deformation in its dimensions. Furthermore, due to the turning resistance of the guide rail 1 and guide rollers 11 and 12, the door body 8 itself will not swing unexpectedly during cargo handling, but in the unlikely event that the door body 8 swings due to the inertia of turning. If it moves, the swinging can be easily stopped by holding down the pull cord 22 or the hanging load.

FIG. 6 shows the cargo handling area in the vicinity of the entrance of the factory building using the lift/swivel doors. A pair of left/right lift/swing doors 30a,
The cargo handling ranges 31a, 31b are expanded to a portion where the cargo handling area 30b is approximately equal to the arc drawn around the guide rails 1a, 1b, and most of the conventional dead space is reduced. In addition, in the same figure,
Components that are the same as those shown in FIG. 1 are given the same reference numerals, and their explanations are omitted.

As explained above in detail, the present invention provides a guide rail near the entrance of a building, and a door body having a hoisting machine is attached to the guide rail so that it can be raised and lowered as well as rotated. This system was able to provide a cargo handling mechanism as well as a cargo handling mechanism, and had the effect of significantly reducing equipment costs required for cargo handling compared to conventional technology that could only provide the door and crane separately. Furthermore, the present invention has the effect of significantly reducing the dead space near the entrance and exit, which was unavoidable in the past, and expanding the range of cargo handling possible.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the general layout of a conventional factory building, Fig. 2 is a front view showing the structure and installation state of the elevator swing door according to the present invention, Fig. 3 is a similar side view, and Fig. 4 is a plan view showing the general layout of a conventional factory building. The figure is a cross-sectional view taken along the line A--A in FIG. 2, FIG. 5 is a detailed view of the same section B, and FIG. 6 is a plan view of a factory building to which the lift/swivel door of the present invention is applied. 1... Guide rail, 8... Door body, 11, 12
... Guide roller, 15 ... Lifting winch,
16, 17... sheave, 18... wire rope,
19...Hoisting machine, 20...Pin (opening/closing regulating means),
21...Insertion hole (opening/closing regulation means).

Claims (1)

[Claims] 1. A guide rail erected vertically near the entrance of a building, and a door body whose one end is engaged with the guide rail via a guide roller and is supported by the guide rail so as to be able to rise and fall and turn; Lifting means for lifting and lowering the door body along the guide rail;
An elevator-swivel door comprising: a hoist movably suspended from the lower surface of the door body; and an opening/closing regulating means for regulating opening/closing of the door body.