JPH0625148Y2 - Electric moving shelf device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is composed of a plurality of movable shelves that are densely arranged, leaving at least one space that should be a passage for cashier work. More specifically, the present invention relates to an electric moving rack device having a passage selection control means for selecting and instructing a desired passage to be opened, by which shelves can be moved to form a delivery passage between desired shelves.

[Prior Art] In order to be able to arrange a large number of movable shelves in a narrow space, a space for the accounting work formed between shelves is left for one passage, and other movable shelves are spaced apart. 2. Description of the Related Art Electric moving shelving devices that are arranged in a dense state without moving the movable shelves by operating aisle switches corresponding to each aisle and form a delivery work passage between desired shelves have been conventionally known.

[Problems to be Solved by the Invention] By the way, the aisle switch in the conventional moving rack device is composed of a switch that is operated by a manual contact operation, such as a push switch and a seesaw switch. There was a problem that the aisle selection operation could not be done while holding it.

An object of the present invention is to provide an electric mobile shelving device which aims to solve the above-mentioned problems by introducing a photoelectric switch that operates when the human body approaches, without direct contact. .

[Means for Solving the Problems] The present invention provides a fixed shelf or a compartment divided by a side wall,
Movable shelves each equipped with a reversible motor for traveling and a detachment / contact detection switch for detecting the presence / absence of a space that can be moved by the detachment / attachment between adjacent shelves correspond to at least one accounting work passage. When a plurality of shelves are arranged with a spare space, a desired passage between the shelves is selected by a passage selection signal of the passage selection control means at the time of delivery of goods, and the movable shelves are stopped to move to a position regulated by the separation / contact detection switch. In the electric type moving rack device configured to form the accounting work passage between the shelves, the passage selection control means detects the approach of the person due to the passage selection action in the vicinity of the entrance between the shelves,
A means of having a limited-distance reflective photoelectric switch whose detection distance can be set, and configured to generate the path selection signal by the operation of the photoelectric switch, or in a fixed partition or a section divided by a side wall. In each of the at least one delivery work passage, movable shelves each equipped with a reversible motor for traveling and a separation / contact detection switch for detecting the presence or absence of a space that can be moved by separation / connection between adjacent shelves are provided. A plurality of shelves are arranged with a corresponding spare space, and when goods are delivered and received, the desired shelf space is selected by the passage selection signal of the passage selection control means, and the movable shelves are stopped to move to the position regulated by the separation / contact detection switch. In the electric type moving rack device configured to form the cashier work path between the racks,
The aisle selection control means has a limited-distance reflective photoelectric switch whose detection distance can be set so as to detect the approach of a person due to an aisle selection action in the vicinity of the entrance between the shelves. The control circuit is configured to generate the passage selection signal by an operation, and after the receipt / delivery work passage is formed by the passage selection signal, the control circuit locked so that the formation passage is not closed is released again by the operation of the photoelectric switch. In addition, it detects the presence or absence of a reversible motor for traveling and a space that can be moved by separation and contact between adjacent shelves in each of the fixed shelves or the compartments divided by the side walls. A plurality of movable shelves equipped with a contact / disconnection detection switch are arranged with a spare space corresponding to at least one receipt / delivery work passage, and the passage selection control means is connected when goods are delivered / received. An electric movement that selects a desired shelf between the shelves by a path selection signal, stops the movement of the movable shelf to a position regulated by the separation / contact detection switch, and forms the accounting work passage between the shelves. In shelf equipment,
The aisle selection control means has a limited-distance reflective photoelectric switch whose detection distance can be set so as to detect the approach of a person due to an aisle selection action in the vicinity of the entrance between the shelves. It is configured to generate the aisle selection signal by an operation, and in order to form the accounting work aisle selected by the aisle selection signal, the movable shelves are moved by the operation of one of the photoelectric switches during the movement of the movable shelf. The above problems have been solved by adopting a means for arranging the movable shelf to stop.

[Operation] According to the invention of claim 1, when the photoelectric switch of the passage selection control means detects the approach of the person due to the passage selection action,
An aisle selection signal is issued to move the movable shelves, and the movable shelves are stopped at the position regulated by the separation / contact detection switch to form a delivery work passage between desired shelves.

According to the second aspect of the present invention, the control circuit in which the billing work passage is formed and which is safely locked so that the formation passage is not closed is reset by operating the photoelectric switch again.

According to the third aspect of the present invention, when any of the photoelectric switches is further operated while the movable shelf is being moved by the passage selection signal, the moving movable shelf immediately stops moving.

[Embodiment] An embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view showing a state in which a delivery work passage is formed in the device of the present invention, and FIG. 2 is a perspective view in which the same parts are omitted, in which G is a floor and FIG. Floor G
Guide rails R are laid on top of the guide rails R, fixed shelves A and F are arranged at both ends of the guide rails R, and movable shelves B, C, D, and E are provided between the fixed shelves A and F as guides. It is arranged on the rail R so as to be movable in the left-right direction via traveling wheels. The fixed shelves A and F and the movable shelves B and
Although C, D, and E are shelving units in the embodiment, they are the fixed shelves A.
-F is arranged if necessary, but may be omitted or may be a wall surface. In the present embodiment, the fixed shelf A /
This will be described as F.

In the figure, 1, 2, 3, 4, and 5 are spaces between adjacent shelves, respectively, and in FIG. 1, the movable shelves B and C and D and E are moved to the left and right ends, respectively, to close them. , The space 1 and 2
・ By minimizing the width of 4 and 5, the space 3 is opened as wide as possible to make the cashier work passage, so that the cashier work can be performed smoothly. That is, each movable shelf B
・ C, D, and E are arranged with a margin space corresponding to at least one cashing work passage.

Reversible motors M ₁ , M ₂ , M ₃ , M ₄ for self-propelling are attached to the lower parts of the movable shelves B, C, D, E, respectively.
The traveling wheels are rotated through the speed reducer, and the reversible motors M ₁ · are provided on the front side of the movable shelves B, C, D, E.
In order to control M ₂ · M ₃ · M ₄ to form a desired balance work passage, when a person approaches a certain distance, the photoelectric switch S ₁ · S ₂ · S _3. S ₄ , S
₅ are provided corresponding to the inter-shelf spaces 1, 2, 3, 4, and 5. Among the photoelectric switches, S ₁ and S
₂ are attached to both front sides of the movable shelf B, the photoelectric switch S ₁ on one side is a switch for opening the space 1, and the photoelectric switch S ₂ on the other side is a switch for opening the space 2. is there. The photoelectric switch S ₃ is attached to the other side of the movable shelf C and is a switch for opening the space 3. The photoelectric switch S ₄ is attached to the other side of the movable shelf D and opens the space 4. The photoelectric switch S ₅ is attached to the other side of the movable shelf E and is a switch for opening the space 5.

Further, the contact / disconnection detection switch LS ₁ / L for detecting the contact / disconnection with the adjacent shelf is provided under the storage surface of each movable shelf B / C / D / E.
S ₂ , LS ₃ , LS _4, and LS ₅ are provided, respectively. Each of the separation / contact detection switches LS ₁ , LS ₂ , LS ₃ ,
LS ₄ and LS ₅ are detection switches for detecting whether they are apart from or in contact with shelves adjacent to each other,
Among them, LS ₁ and LS ₂ are attached to the lower portions of both side surfaces of the movable shelf B, while the separation / contact detection switch L
S ₁ is a separation / contact detection switch that detects separation / contact between the fixed shelf A and the movable shelf B, and the separation / contact detection switch LS ₂ on the other side is the movable shelf B /
It is a separation / contact detection switch for detecting separation / contact of C. The separation / contact detection switch LS ₃ is attached to the lower part of the side surface of the movable shelf C on the other side, and detects separation / contact of the movable shelves C and D. Similarly, the separation / contact detection switch LS ₄ is attached to the lower part of the other side surface of the movable shelf D to detect the separation / connection of the movable shelves D and E, and the separation / contact detection switch LS ₅ is mounted on the lower part of the other side of the movable shelf E. It is attached to detect separation and contact between the movable shelf E and the fixed shelf F. Each of the contact / detachment detection switches LS _{1 to} LS ₅ has its contacts separated when adjacent shelves are in contact with each other and is in a pressed state, and when adjacent shelves are apart and not in a pressed state. It has a so-called normally closed contact in which the contact is closed to form a circuit.

FIG. 3 shows a photoelectric switch (denoted by symbol S) in the present invention.
FIG. 7 is a side view showing the detection operation by the photoelectric switch S mounted on the front side of the movable shelf at a relatively low position;
It shows that when a person approaches a certain distance, it detects it and operates.

FIG. 4 shows a photoelectric switch (denoted by a symbol S) in the present invention.
FIG. 11 is a side view showing another detection operation by the photoelectric switch S, which is provided at a relatively high position on the front side of the movable shelf, and operates by detecting it by bringing a hand closer to a preset distance. It is shown that.

It is recommended that the photoelectric switches S _{1 to} S ₅ are limited to a limited distance reflection type of a triangulation type, and that the detection distance is determined only by the incident angle, because measurement can be performed regardless of the amount of reflected light. It can be operated with high accuracy without malfunction.

FIG. 5 is a flow chart in the case of forming a work passage for receipt and delivery of goods in the device of the present invention, in which an operator who wants to form a receipt / delivery work passage between desired shelves is near the entrance between the shelves. When a certain distance is approached to the photoelectric switch corresponding to the interspace, the photoelectric switch operates 11, issues a path selection signal 12, and drives a motor of a required movable shelf in a desired direction to move the movable rack. Move the shelf 1
Let 3 When the movable shelves that move move into contact with adjacent shelves,
The separation / contact detection switch is actuated to switch off 14, the motor is stopped, movement is stopped 15, and a delivery work passage is formed 16.

In addition, in the case of forming another accounting operation passage 17, returning to the beginning of the flowchart again, the passage is selected 12,
Thereafter, the same operation as described above is repeated to form another accounting work passage.

FIG. 6 is a flow chart in the case of unlocking the control circuit for locking the formation passage from closing after the passage is formed in the device of the present invention by the second operation of the photoelectric switch. When an operator who intends to form a delivery work passage between the shelves approaches a photoelectric switch corresponding to the inter-shelf space at a certain distance near the entrance between the shelves, the photoelectric switch operates 1
1, a passage selection signal is issued 12, and the motor of the required movable rack is driven in the required direction to move 13 the movable rack. When the movable shelves to be moved come into contact with the adjacent shelves, the separation / contact detection switch is activated to switch off 14, the motor is stopped and movement 15 is stopped, and a delivery work passage is formed, and The control circuit is automatically locked 16 so that the forming passage is not closed to ensure safety. The locked state of the control circuit is released by a person approaching the photoelectric switch in the forming passage at a certain distance and operating the photoelectric switch 18 again (second operation).
The control circuit is reset 19. Then, after the control circuit reset 19, if it is desired to form another accounting work passage 17, the process returns to the beginning of the flow chart again to perform the passage selection 12, and the same operation as described above is repeated. Can be formed.

FIG. 7 is a flow chart in which the movement of the movable shelf is urgently stopped by the operation of one of the photoelectric switches while the movable shelf is being moved by the passage selection signal in the device of the present invention. When an operator who intends to form a billing operation passage approaches a photoelectric switch corresponding to the space between the shelves at a certain distance near the entrance between the shelves, the photoelectric switch operates 11 and the A selection signal is issued 12, and the motor of the required movable rack is driven in the required direction to move 13 the movable rack. When one of the photoelectric switches detects the approach of a person at a certain distance during the movement 13 of the movable shelf, the operation 20 is issued and a stop signal is issued, the motor stops the rotation operation, and the movable shelf stops the movement 15. .

As described above with reference to the embodiments, the electric movable rack of the present invention has a limited distance reflection type photoelectric switch in the passage selection control means, and this photoelectric switch allows a person to approach a certain distance. At this time, a passage selection signal is issued to move the movable shelf to form a delivery and receipt work passage, and after the passage is formed, a control circuit safely locked to prevent the formed passage from closing is further provided. When the photoelectric switch is re-operated (second operation), the lock can be released, and further, when the approach of a person is detected during the movement of the movable shelf by the passage selection signal and any photoelectric switch operates. A stop signal can be issued to stop the movement of the movable shelf.

[Advantage of Invention] According to the invention of claim 1, since the passage selection control means is provided with the photoelectric switch of the limited distance reflection type in the vicinity of the entrance between the shelves, the approach of the human body is detected by the reflected light, It can be operated even if the operator holds an object in both hands, and since the detection distance of the photoelectric switch is variable, it can be freely adapted to the part of the human body (manual, foot operation, etc.) to be approached according to the operation mode. be able to.

According to the second aspect of the present invention, the passage selection control means, after the receipt / delivery work passage is formed by the operation of the photoelectric switch,
A control circuit locked so that the forming passage is not closed;
The operator can easily release it again with the operation of the photoelectric switch while holding the removed article.

According to the invention of claim 3, the passage selection control means can stop the movement of the movable shelf urgently by operating any photoelectric switch during the movement of the movable shelf.
It is possible to ensure safety during operation.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a delivery work passage is formed in the device of the present invention, and FIG. 2 is a perspective view in which the same portion is omitted,
FIG. 3 is a side view showing a detection operation by a photoelectric switch in the device of the present invention, FIG. 4 is a side view showing another detection operation of the same, and FIG. 5 is a flowchart for forming a work passage for receipt and delivery of articles in the device of the present invention. FIG. 6 is a flowchart for unlocking the locked control circuit by the second operation of the photoelectric switch after the working passage is formed, and FIG. 7 is a flowchart for urgently stopping the movable shelf during movement. In the figure, B, C, D, and E are movable shelves, S ₁ , S ₂ , S _3, and S.
₄ , S ₅ is a photoelectric switch, LS ₁ , LS ₂ , LS ₃ , L
S ₄ and LS ₅ are contact / disconnection detection switches.

Claims (3)

[Scope of utility model registration request] 1. A reversible motor for traveling and a separation / contact detection switch for detecting the presence / absence of a space that can be moved by the separation / contact between adjacent shelves in a fixed shelf or a section partitioned by a side wall. A plurality of movable shelves provided with are arranged with a spare space corresponding to at least one delivery work passage, and at the time of receipt and delivery of goods, a desired passage between the shelves is selected by a passage selection signal of the passage selection control means, and the separation / connection is performed. In the electric type moving rack device in which the movable shelves are stopped to be moved to a position regulated by a detection switch and the receipt / delivery work passage is formed between the shelves, the passage selection control means includes an entrance between the shelves. In order to detect the approach of the person due to the action of selecting a passage in the vicinity, there is a limited distance reflection type photoelectric switch whose setting of the detection distance is variable, and the passage selection signal is issued by the operation of the photoelectric switch. An electric mobile shelf device characterized in that 2. A reversible motor for traveling and a separation / contact detection switch for detecting the presence / absence of a space that can be moved by the separation / contact between adjacent shelves in a partition divided by a fixed shelf or a side wall. A plurality of movable shelves provided with are arranged with a spare space corresponding to at least one receipt / delivery work passage, and at the time of receipt and delivery of goods, a desired passage between the shelves is selected by the passage selection signal of the passage selection control means, and the connection / disconnection is performed. In the electric type moving rack device in which the movable shelves are stopped to be moved to a position regulated by a detection switch and the receipt / delivery work passage is formed between the shelves, the passage selection control means includes an entrance between the shelves. In order to detect the approach of the person due to the action of selecting a passage in the vicinity, there is a limited distance reflection type photoelectric switch whose setting of the detection distance is variable, and the passage selection signal is issued by the operation of the photoelectric switch. And a control circuit locked so that the formation passage is not closed after the receipt / delivery work passage is formed by the passage selection signal, is again released by the operation of the photoelectric switch. Electric moving rack device. 3. A reversible motor for traveling and a connection / disconnection detection switch for detecting the presence / absence of a space that can be moved by separation / connection between adjacent shelves in a section divided by a fixed shelf or a side wall. A plurality of movable shelves provided with are arranged with a spare space corresponding to at least one receipt / delivery work passage, and at the time of receipt and delivery of goods, a desired passage between the shelves is selected by the passage selection signal of the passage selection control means, and the connection / disconnection is performed. In the electric type moving rack device in which the movable shelves are stopped to be moved to a position regulated by a detection switch and the receipt / delivery work passage is formed between the shelves, the passage selection control means includes an entrance between the shelves. In order to detect the approach of the person due to the action of selecting a passage in the vicinity, there is a limited distance reflection type photoelectric switch whose setting of the detection distance is variable, and the passage selection signal is issued by the operation of the photoelectric switch. In addition, the movable shelves are stopped by the operation of any of the photoelectric switches while the movable shelves are being moved so as to form the accounting work passage selected by the passage selection signal. An electric mobile shelf device characterized in that