JP2589494Y2 - Electric moving shelf locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a lock device for an electric movable shelf that is moved by operating a drive switch.

<Conventional Technology> Conventionally, electric movable shelves have been widely used for the purpose of saving space. Such an electric movable shelf is provided so as to be movable on a rail laid on the floor surface, and each movable shelf has a built-in drive means and a drive switch.

Therefore, for example, as shown in FIG. 3 (a), in a state where a plurality of movable shelves 31,... Is pressed, the drive switch 32 of the leftmost moving shelf 31 is pressed. As a result, as shown in FIG. 4B, the right moving shelves 31,...
Moving upward, the space between the moving shelves 31, 31 in the portion indicated by arrow B opens.

In this manner, an arbitrary movable shelf 31 can be easily opened by operating the drive switch 32.

In this case, when an operator enters the open shelf indicated by arrow C in FIG.
Drive switch 32 without other workers in the part knowing it
There is a danger that the shelves 31,.

Therefore, an emergency stop switch (not shown) is provided on each of the shelves 31,... To ensure the safety of workers working in the shelves. In other words, this emergency stop switch has a cord-shaped pressure switch wrapped around both ends of the shelf near the floor, and when the shelf starts moving, the worker working in the shelf kicks the emergency stop switch with his foot. Had to stop moving the shelves.

<Problem to be solved by the invention> However, the emergency stop switch is small, and when the worker is working on a platform or carrying large luggage, it is difficult to perform agile operation. The switch could not be kicked and could be pinched between shelves.

The present invention has been made in order to eliminate the above-described problem, and has as its object to provide a lock device for an electric movable shelf that can reliably ensure the safety of a worker working in the movable shelf. And

<Means for Solving the Problems> The lock device of the electric movable shelf of the present invention is a plurality of movable shelves arranged in parallel so as to move in a predetermined direction by a driving means and open any adjacent shelves, A drive switch attached to each movable shelf for driving the drive means to start moving the movable shelf, a drive lock switch attached to each movable shelf to lock and unlock the movement of the movable shelf, and the drive lock switch And a drive lock switch cover that is connected to the tip of the cord attached to the movable shelf adjacent to the attached movable shelf, and that removably covers the drive lock switch. The drive lock switch is covered with a drive lock switch cover. In this state, the drive lock is released in the closed state, and the drive is locked with the drive lock switch cover removed.

The drive lock switch cover may be connected to an end of a cord attached to the same movable shelf as the drive lock switch attached movable shelf. At this time, the drive lock switch locks the drive while being covered with the drive lock switch cover, and releases the drive lock with the drive lock switch cover removed.

<Operation> According to the present invention, the drive lock of the movable shelf is released by removing the drive lock switch cover from the drive lock switch on all the drive lock switches provided on each movable shelf, and the movable shelf is driven by the drive switch. Can be moved.

On the other hand, when the worker enters the moving shelf and works, the drive lock switch cover is removed or the drive lock switch is covered with this. Thereby, the movable shelf is locked, and the shelf does not move even if another operator turns on the drive switch. At this time, in order for another worker to move the shelf,
It is necessary to approach the open shelf and cover or remove the drive lock switch cover, but when approaching the shelf, it is possible to confirm that other people are working inside the shelf, so work inside the shelf The safety of people is ensured.

In particular, in the case of a drive lock switch cover that is configured to release the drive lock while covering the drive lock switch, this is connected to the end of the cord attached to the movable shelf adjacent to the drive lock switch attached movable shelf. When doing so, workers entering between the moving shelves must first remove the drive lock switch cover from the drive lock switch and remove the cord material, and then enter inside, so they may forget to lock accidentally. Disappears.

<Embodiment> Hereinafter, a lock device for an electric movable shelf according to the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a movable shelf, a plurality of which are arranged side by side so as to be movable along a moving rail 2 laid on a floor surface. Each moving shelf 1 has a driving means mounted inside,
By pressing the drive switch 3 on the front, the movable shelves 1,... Can be moved to open between any of the movable shelves 1, 1.

A drive lock switch 4 is provided near each drive switch 3. The drive lock switch 4 is a magnetic proximity switch, and when a magnetic body such as iron approaches, the drive lock switch and the drive unit are electrically connected.

A chain 5 is attached to the movable shelf 1 facing the drive lock switch 4, and a drive lock switch cover 6 is connected to a tip of the chain 5. The drive lock switch cover 6 is
As shown in the figure, a concave portion 6b is provided on the front surface of a main body 6a made of an iron material, and a magnet sheet 6c is mounted on the front surface excluding the concave portion 6b.

Accordingly, the drive lock switch 4 is accommodated in the recess 6b of the drive lock switch cover 6, and the drive lock switch cover 6 is attached to the wall surface of the steel moving shelf 1 by the magnetic sheet.
6c, and by covering the drive lock switch 4 (this state is indicated by an arrow A in FIG. 1),
When the drive lock switch 4 attached to each movable shelf 1 is unlocked and the drive switch is turned on, the movable shelf 1 moves.

On the other hand, when the worker enters between the movable shelves 1 and 1, the worker must first remove the drive lock switch cover 6 from the drive lock switch 4 and remove the chain 5. As a result, the drive lock switch 4 is activated, and the power supply to the drive switch 3 of each movable shelf 1 is cut off and locked.

In this state, the worker enters the moving shelf 1 and moves the chain 5 to an appropriate portion of the moving shelf 1, for example, the vicinity of the drive lock switch 4 or an appropriate portion of the moving shelf 1 opposed thereto (the dashed line in FIG. 1). Work).

At this time, if another worker presses the drive switch 3 to move the other moving shelf 1, the moving shelf 1 does not move. In order for another worker to move the mobile shelf 1,
Since it is necessary to cover the removed drive lock switch cover 6 on the original drive lock switch 4, it is possible to confirm that the user is working in the movable shelf 1 at that time, so that the safety of the worker is reliably ensured. You.

In this embodiment, when the drive lock switch 4 is covered with the drive lock switch cover 6, the drive lock of the movable shelf 1 is unlocked. The lock may be released when the lock is released from the drive lock switch 4.
At this time, the chain 5 is stretched between the movable shelves 1 and 1 in the unlocked state, and is configured to be locked over the drive lock switch provided on the movable shelf 1 on the side where the chain 5 is mounted in the locked state. This is preferable for ensuring the safety of the worker more reliably.

The drive lock switch 4 is not limited to a magnetic proximity switch, and various proximity switches can be used. For example, a high frequency oscillation type proximity switch and a capacitance type proximity switch can be used. Further, a contact-type switch commonly used in this field can be used. As an example of a contact type switch, for example, a switch in which a pressing piece of a push button type switch can be pressed by a drive lock switch cover can be cited.

<Effects of the Invention> According to the present invention, when a worker is working in the movable shelf, the drive of the movable shelf is locked by the drive lock switch, so that another worker erroneously removes the movable shelf. There is an effect that the danger of moving can be eliminated and the safety of the workers in the moving shelf can be ensured.

In addition, a drive lock switch cover is connected to the end of a string material such as a chain, and the string material is bridged between adjacent moving shelves. When entering between the moving shelves, the drive switch is locked by removing the string material. By doing so, the worker does not forget to lock, and the safety is further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an explanatory view showing a drive lock switch and its cover, and FIGS. 3 (a) and (b) are plan views showing the operation of a normal movable shelf. FIG. 1, 31: moving shelf, 2: rail, 3: drive switch, 4: drive lock switch, 5: chain (string material), 6: drive lock switch cover

Claims (2)

(57) [Scope of request for utility model registration] 1. A plurality of moving shelves arranged in parallel so as to move in a predetermined direction by a driving means to open any adjacent shelves, and a moving shelves attached to each moving shelves to move the driving means. A drive switch for performing the movement, a drive lock switch attached to each of the movable shelves to lock and unlock the movement of the movable shelf, and a tip of a cord attached to the movable shelf adjacent to the movable shelf to which the drive lock switch is attached. And a drive lock switch cover that removably covers the drive lock switch.The drive lock switch unlocks the drive lock while being covered with the drive lock switch cover, and removes the drive lock switch cover. A lock device for an electric movable shelf, wherein the drive is locked in a state. 2. A plurality of moving shelves arranged in parallel so as to move in a predetermined direction by a driving means to open any adjacent shelves, and a moving shelves attached to each moving shelves to move said driving means. A drive switch for performing the movement, a drive lock switch attached to each of the movable shelves for locking and unlocking the movement of the movable shelf, and a drive lock switch attached to the same movable shelf as the drive lock switch-mounted movable shelf. A drive lock switch cover that detachably covers the drive lock switch, wherein the drive lock switch locks the drive while being covered with the drive lock switch cover, and removes the drive lock switch cover. A lock device for an electric moving shelf, wherein a drive lock is released.