JPH031951Y2 - - Google Patents

Description

[Detailed explanation of the idea] 【Technical field】

The present invention relates to an underfloor storage device that utilizes the underfloor space for storage, and is of a sliding type in which a plurality of storages supported by self-propelled carts move along underfloor rails.

[Background technology]

Conventionally, we have developed slide-type underfloor storage devices that allow multiple storage units to be used through a single floor opening, and in which the storage units are supported by multiple movable trolleys on rails installed horizontally under the floor. There is a self-propelled type where the cart is driven by a motor, etc., and the cart is stopped at a position directly below the floor opening by turning off the power to the motor etc. using a limit switch for detecting the position of the cart. however,
In such a conventional example, even if the limit switch is turned off, the truck moves due to inertia, so the truck does not stop immediately, and there is a problem that the truck supporting the storage compartment cannot be stopped with precision.

[Purpose of invention]

The present invention was developed in view of the above-mentioned technical background, and its purpose is to install a storage shed supported by a self-propelled trolley that runs along rails under the floor through an opening in the floor. The object is to be able to stop accurately and reliably at a position directly below.

[Disclosure of invention]

The underfloor storage device of the present invention has a self-propelled trolley 3 that runs under its own power mounted on a horizontal rail 2 arranged under a floor 1, and a storage compartment 4 supported by the trolley 3. A limit switch 11 is provided to turn off the power for traveling, and a stopper 14 is protruded from the truck 3 toward the rail 2, and the limit switch 11 is turned off when the truck 3 reaches a position directly below the floor opening 7. It is characterized in that the rail 2 is provided with a switch abutting portion 12 for stopping the bogie 3 and a stop 15 for positioning and stopping the bogie 3 by abutting the stopper 14.
At the stop position directly below the floor opening, the limit switch is turned off to cut off the power to the cart, and at the same time the stopper of the cart is placed against the rail to stop the storage at the stop position. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Beneath the floor 1 is a set of two rails 2 with a U-shaped cross section.
are arranged horizontally, and on top of the rails 2 is mounted a bogie 3 with wheels 8 on the lower surface delivered into the grooves of the rails 2 so as to be freely movable. A box-shaped storage 4 is placed on the upper surface of the trolley 3, and the storage 4 is placed on the floor 1.
It is designed to be able to move horizontally along the rails 2 by means of a trolley 3 at the bottom. The carriage 3 is moved by wheels 8 using power from a built-in motor and gears (not shown).
It is self-propelled and powered by a flexible power supply line 17. The trolley 3 moves along the rail 2 and can reciprocate between a position A directly below the floor opening 7 and a standby position B retracted from the floor opening 7,
Although only one cart 3 is shown in FIG. 1, a plurality of carts 3 supporting storage sheds 4 are placed on the rails 2. In the illustrated example, the rail 2 is a cross-shaped track having a cross-shaped track, and four carts 3 can be mounted on all sides, but the rail 2 is
Two carts 3 may be placed on the left and right sides as a linear type with a book track. A pair of stoppers 14 are made to protrude downward from the rear end of the truck 3 (hereinafter, the standby position B side is referred to as the rear direction), and a pair of stoppers 14 are provided on the front side of the truck 3 to turn off the power for traveling. A limit switch 11 is installed. A switch contact portion 12 is provided on the rail 2 at a location opposite to the limit switch 11 when the trolley 3 is at a position directly below the floor opening 7. When the limit switch 11 hits the switch contact portion 12, the limit switch 11 is turned off. The power runs out over time. In addition, a pair of abutments 15 are provided on the rail 2 at the boundary between the position A directly below the floor opening 7 and the standby position B.
When the stopper 14 of the truck 3 comes to a position A directly below the floor opening 7, the stopper 14 of the truck 3 hits this abutment 15, and the forward movement of the truck 3 is controlled. Furthermore, an abutment part 16 is provided on the rail 2 at the back of the standby position B, and when the bogie 3 is retreated and retracted from the floor opening 7, the stopper 14 of the bogie 3 hits the abutment part 16, and the bogie 3. It is designed to be able to control when reversing. The four storage compartments 4 are normally housed in the standby position B, and when the carts 3 of the required storage compartments 4 are advanced to bring the storage compartments 4 to the position A directly below the floor opening 7. The limit switch 11 hits the switch contact part 12 and the power stops, and at the same time the stopper 14 hits the contact part 15 and the storage 4 and the trolley 3 are stopped.
can be reliably stopped at a precise position.
Conversely, when the truck 3 is moved backward, the storage 4 is retracted to the standby position B, and the stopper 14 hits the contact portion 16 to stop the truck 3, so it is only necessary to turn off the power source at hand. The present invention is also useful for self-propelled underfloor storage devices in which the storage compartment simply slides under the floor;
As shown in the figure, in the case where the storage 4 is separated from the cart directly under the floor opening and lifted onto the floor by a lifter, it is even more important to stop the cart with precision. Hereinafter, the latter embodiment will be explained with reference to FIG. 2, focusing on the elevating mechanism. A square hole 5 is bored in the trolley 3, which is smaller than the bottom surface of the storage 4 and prevents the storage 4 from falling into it. On the other hand, a floor opening 7 provided in the floor 1
A lifter 6 is installed below. The lifter 6 raises and lowers the lifting table 10 at the upper end using a hydraulic cylinder 9.
is smaller than the hole 5 of the truck 3 so that it can pass through the hole 5. Therefore, when it is time to take things in and out, the cart 3 is moved along the rails 2 to move the desired storage 4 to a position directly below the floor opening 7,
At this point, the cart 3 is stopped. At this time, since the cart 3 can be stopped with high accuracy as described above, the position of the hole 5 of the cart 3 and the position of the lifting table 10 can be made to match with high accuracy without deviation. Next, when the lifter 6 is driven to raise the lifting table 10, the lifting table 10 passes through the hole 5 of the cart 3, lifts the bottom of the storage 4, and moves the storage 4 from the floor opening 7 to the top of the floor 1. let By taking things in and out of the storage 4 in this state, work can be done easily. Especially heavy items become easier. After the loading and unloading is completed, the lifter 6 is driven in the reverse direction to lower the lifting table 10, and the storage 4 returns to the upper surface of the truck 3, and the lifting table 10 comes out of the hole 5 downward. Therefore, the trolley 3 carrying the storage 4 can be moved backward again.

[Effect of the idea]

As described above, the present invention is to place a self-propelled trolley that runs under its own power on a horizontal rail installed under the floor, to support a storage compartment on the trolley, and to turn off the power for running the trolley. A limit switch is provided, and a stopper is protruded from the bogie toward the rail side, and when the bogie comes to a position directly below the floor opening, the limit switch is turned off to stop the bogie. There is a contact on the rail for positioning and stopping, so when the self-propelled trolley supporting the storage moves to just below the floor opening, the limit switch touches the switch contact and turns off, cutting off the power to the trolley. At the same time, the stopper of the truck comes into contact with the rail, preventing movement of the truck due to inertia, and there is an advantage that the storage can be reliably and precisely stopped at the stop position directly below the floor opening.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a sectional view showing another example of the present invention, where 1 is a floor;
2 is a rail, 3 is a cart, 4 is a storage, 7 is a floor opening, 11 is a limit switch, 12 is a switch contact portion, 14 is a stopper, and 15 is a stopper for the stopper.

Claims (1)

[Scope of utility model registration request] A self-propelled trolley that runs under its own power is placed on a horizontal rail placed under the floor, the trolley supports a storage compartment, a limit switch is installed on the trolley to turn off the power for running, and a A switch abutting part for protruding the stopper toward the rail side and turning off the limit switch to stop the bogie when the bogie comes to a position directly below the floor opening, and a contact part for positioning and stopping the bogie by applying the stopper. A self-propelled underfloor storage device that is installed on rails.