JP2513336B2 - Device for loading and unloading dam waiters - Google Patents

Description

TECHNICAL FIELD The present invention relates to a loading / unloading device for loading and unloading a load on a dam waiter.

[Prior Art] A small elevator that does not operate in a car is called a dam waiter. One with the entrance height above the waist of a person is called a table type dam waiter, and the bottom end of the entrance and exit. What is on the same surface as the floor of the building is called a floor type dam waiter.

FIG. 4 is a vertical cross-sectional side view showing a loading / unloading device for a conventional table type dam waiter, and FIG. 5 is, for example, Jikkou Sho 62-41.
FIG. 7 is a vertical cross-sectional side view showing a loading / unloading device for a conventional floor type dam waiter disclosed in Japanese Patent No. 018.

In the figure, (1) is a hoistway, (2) is a car placed in the hoistway (1) and hoisted by the main ropes (3), (4) is the floor of the building, and (5) is a waist high position. Slot frame,
(6) is a set plate provided on the lower surface of the loading / unloading opening frame (5),
(7) is a doorway frame provided above the sill (8) installed on the same plane as the floor (4) of the building, and (9) is a doorway for opening and closing the doorway frames (5) and (7). is there.

The conventional dam waiter loading and unloading device is configured as described above, and the table type device shown in FIG. 4 is suitable for carrying small packages such as dishes, documents and books that are mainly lifted by hand. Also, the floor type shown in FIG.
It is common to carry catering carts and carts.

[Problems to be Solved by the Invention] Since there are two types of conventional dam waiter loading and unloading devices, a table type and a floor type, the table type allows a slightly large and heavy load to be pushed by a handcart. However, there is a problem that the floors of the basket (2) and the floor of the building (4) cannot be used because they have different heights. on the other hand,
The floor type has a problem in that it is difficult to use because it is necessary to bend over when loading light and small luggage, which may hurt the lower back.

The present invention has been made to solve the above problems, and an object thereof is to provide a loading / unloading device for a dam waiter that can be used in both a table type and a floor type.

[Means for Solving the Problems] A loading / unloading device for a dam waiter according to the present invention,
An entrance / exit frame provided on the entrance / exit on the building side is formed to be movable up and down, and is driven by a driving machine.

[Operation] In the present invention, since the loading / unloading frame can be moved up and down, if the sill of the loading / unloading frame is made waist-high, it becomes as easy to use as the table type, and if the sill is flush with the floor of the building, it becomes a floor type. Same usability.

[Embodiment] FIGS. 1 to 3 are views showing an embodiment of the present invention. FIG. 1 is a vertical sectional side view when the table type is set, and FIG. 2 is a vertical sectional view when the floor type is set. FIG. 3 is a side view and FIG. 3 is a circuit diagram of a main part, and the same parts as those of the conventional device are denoted by the same reference numerals.

In Figures 1 and 2, (11) is the hoistway of the building wall (1)
A three-way frame (11a) that forms an access port, an upper wall plate (11b) extending above the three-way frame (11a), and a three-way frame (11a). And a lower wall plate (11d) extending below the sill (11c) and having a rack formed on the loading / unloading side (landing side). (12) is a table position detection switch for detecting the table position (elevated position) of the access frame (11),
(13) is a floor position detection switch that also detects the floor position (down position), (14) is a frame drive motor that drives a pinion (15) that engages with the rack of the lower wall plate (11d),
(16) is a cam fixed to the lower wall plate (11d), (17) is an ascending command switch that is attached to the lower part of the car (2) and issues an ascending command of the car (2) when engaged with the cam (16), (18) is a lowering command switch that also issues a lowering command, (19) is a loader, (20) is light luggage, and (21) is heavy luggage on a handcart (22).

In FIG. 3, (+) and (-) are DC power supplies, (25) is a table button provided near the entrance / exit, (26) is a floor button, and (27a) (27b) is a basket (1). Floor detection relay contact that is closed when is stopped on this floor, (28) is a table relay, (28a) (28b) is its normally open contact, (28c) is also a normally closed contact, (29) is a floor relay, (29a) (29b) is its normally open contact, (29
c) is a normally closed contact, (30) is a frame up relay that issues a command to drive the frame drive motor (14) in the direction of raising and lowering the frame (11) when energized, and (31) is also down The frame lowering relay that issues a command to drive in the direction to drive the car, (32) the car up relay that issues a command to drive the hoisting motor (not shown) in the direction in which the car (2) moves up when energized, (3
3) is a car descending relay that issues a command to drive in the same descending direction.

 Next, the operation of this embodiment will be described.

Now, let us say that the inlet / outlet frame (11) is in a table-shaped position as shown in FIG.

When the car (2) is not stopped on this floor, the floor detection relay contacts (27a) (27b) are open, so even if the table button (25) or the floor button (26) is pressed. , No change occurs.

Here, when the cargo handling person (19) calls the car (2), the car (2) arrives at this floor and stops at the loading / unloading frame (11), although detailed description is omitted. At this time, the car (2) moves up and down command switches (17) (1
8) stops at a position where it does not engage the cam (16), and the floor of the car (2) and the sill (11c) are almost flush.

If the loader (19) handles light luggage (20), open the door (9) to store the luggage (20) in the car (2), close the door (9) and close the destination. By pushing a button (not shown) on the floor, the car (2) is sent to this destination floor.

Next, the consignor (19) pushes the heavy luggage (21) with a wheelbarrow (2
If you put it on 2), you cannot load the cart (22) on the car (2) as it is, so you will have to push the floor button (26). At this time, since the car (2) is stopped on this floor and the floor detection relay contact (27b) is closed, (+)-(26)-(27b)-(28c)-
In the circuit of (29)-(-), the floor relay (29) is energized and self-holds by closing the contact (29a). Also,
The contact (29b) is also closed and the contact (29c) is open. Since the frame lowering relay (31) is energized by closing the contact (29b), the frame drive motor (14) drives the pinion (15) to move the lower wall plate (11d) downward. With this, the loading / unloading opening frame (11) starts to descend. When the lower wall plate (11d) is lowered and the cam (16) is engaged with the lowering command switch (18), the lowering command switch (18) is closed and the car lowering relay (33) is energized. (2) starts descending and follows the descending of the access frame (11). When the lower wall plate (11d) descends and engages with the floor position detection switch (13), the switch (13) opens, the frame lowering relay (31) is de-energized, and the frame drive motor (14) stops. Then, the access frame (11) is stopped. At the same time, when the cam (16) and the lowering command switch (18) are disengaged, the lowering command switch (1
8) is opened, the car down relay (33) is de-energized, and the car (2) is stopped. At this time, the floor of the basket (2) and the threshold (11
c) and the building floor (4) are almost flush with each other, as shown in FIG.

Now, the loader (19) opens the access door (9), puts the handcart (22) in the car (2), closes the access door (9), and closes the car (2) as described above. Will be sent.

Also, when the loading / unloading frame (11) is in the floor type position as shown in Fig. 2 and you want to use it as a table type, press the table button (25) to perform the same actions as above. It can be easily explained that the frame (11) is moved up to the position shown in FIG.

When the car (2) leaves this floor, the floor detection relay contacts (27a) (27b) are opened and the car returns to the initial state.

In the above embodiment, one car (2) is used as a table type or a floor type, but the car (2) is the first type.
The table may be made longer than that shown in FIGS. 2 and 3 to provide a table-type hanging car room on the upper side and a floor-type car room on the lower side. In this way, the upper and lower cabs can be used exclusively, and the interior suitable for the type of goods can be provided.

[Effects of the Invention] As described above, according to the present invention, since the loading and unloading frame provided at the loading and unloading port on the building side is formed to be movable up and down and driven by the driving machine, the sill of the loading and unloading frame can be reduced. If the waist is high, it is as easy to use as the table type, and if the sill is flush with the floor of the building, it is the same as the floor type. One dam waiter can be used for both table and floor types, and it can be transported. There is an effect that efficiency can be increased.

[Brief description of drawings]

1 to 3 are views showing an embodiment of a dam waiter loading / unloading device according to the present invention. FIG. 1 is a vertical sectional side view when a table type is set, and FIG. 2 is a floor type. Fig. 3 is a longitudinal side view of the case, Fig. 3 is a circuit diagram of a main part, Figs. 4 and 5 are views showing a conventional inlet / outlet device for a dam waiter, and Fig. 4 is a table type vertical side view, FIG. 3 is a vertical side view of a floor type. In the figure, (4) is the floor of the building, (11) is the access frame, and (11
a) is a three-sided frame, (11c) is a threshold, (14) is a frame drive motor,
(15) is a pinion. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

(57) [Claims] 1. A loading / unloading port which penetrates the building side and the hoistway side, a loading / unloading port frame which is provided in the loading / unloading port and is configured to be able to move up and down by being guided to the building side, and the loading / unloading port. An inlet / outlet device for a dam waiter, comprising a drive device that drives a frame and stops the sill at the floor position of the building and at a position above it.