JPS6134807B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In a conventional movable shelf in which passages are formed by moving required movable shelves among a plurality of movable shelves in the depth direction, passage selection pushbutton switches are used to form each passage. Anyone can create a desired passage by pressing the passage selection button corresponding to the desired passage.

Therefore, it has the disadvantage that it cannot effectively maintain confidentiality or prevent theft.

The present invention relates to an improvement of a movable shelf that overcomes such difficulties, and the present invention relates to an improvement of a movable shelf that overcomes such difficulties. In a movable shelf configured to form a space corresponding to a passage between movable shelves, a key switch that enables passage formation, a pushbutton switch that instructs passage formation, and a pushbutton switch that is pressed when the key switch is in an on state. A passage formation detection circuit that detects when a button switch is turned on, a self-holding circuit that is self-held by the detection of the passage formation detection circuit, and a shelf drive means that drives a predetermined movable shelf when the self-holding circuit is on. , a shelf focusing detection circuit for detecting when the key switch is turned off while the self-holding circuit is in the on state; and a shelf driving means configured to focus the movable shelves at one location by detection by the shelf focusing detection circuit. The key switch and the push button switch are provided for each movable shelf, and their purpose is to ensure confidentiality and theft prevention. The point is to provide a mobile shelf that can be used.

Since the present invention is configured as described above,
If a predetermined key switch is not turned on, the passage formation detection circuit does not operate, and a working passage cannot be formed by operating the push button switch, so that confidentiality and theft prevention are ensured.

Further, when the key switch is turned off when any of the work passages are formed and the self-holding circuit is in the ON state, the shelf focusing detection circuit detects the same work and sends a signal to the focusing instruction circuit, The focusing instruction circuit controls the shelf driving means to move a predetermined movable shelf so that all the movable shelves can be focused at one place, and since the formed passage is not left as it is, it is possible to maintain confidentiality and Theft prevention is effectively achieved.

Further, each movable shelf is provided with a key switch and a pushbutton switch, so that the operator can directly go to a predetermined shelf and operate it, which improves work efficiency.

An embodiment of the present invention shown in FIGS. 1 to 9 will be described below.

A is a unit shelf in which a large number of shelf boards are attached to a shelf support frame vertically and horizontally, and the unit shelf A has one fixed shelf A ₀ and three self-propelled movable shelves A ₁ , A ₂ , Wheels B, which are pivotally supported at the lower ends of the self-propelled movable shelves A ₁ , A ₂ , and A ₃ , run on guide rails C _that are laid parallel to each other in the depth direction on a horizontal floor surface. It is placed freely.

Further, the movable shelves A ₁ , A ₂ , A ₃ are respectively provided with electric motors M ₁ , M ₂ , M ₃ , and the electric motors M ₁ ,
M ₂ and M ₃ are connected to the wheel B with or without a reduction gear (not shown), and the electric motor
When M ₁ , M ₂ , M ₃ are rotated forward or reverse, each movable shelf A ₁ , A ₂ , A ₃ can move by itself to the right or left.

Further, on each end surface (the surface shown in FIG. 1) of each of the unit shelves A ₀ , A ₁ , A ₂ , ₃ , there are display lamps L ₀ , L ₁ , L ₂ , L ₃ for displaying the operating status. Aisle selection pushbutton switches PB ₀ , PB ₁ , PB ₂ , PB ₃ and aisle selection key switches CS ₀ , CS ₁ , CS ₂ , CS ₃ are provided, respectively, and only one end surface of the fixed unit shelf A ₀ is provided. is additionally provided with a power key switch PS for opening and closing the power supply of the control circuit described later and a power indicator lamp LP, and when the power key switch PS is turned on, the power indicator lamp LP lights up. Further, stop limit switches _IS0 , _LS1 , _LS2 , _LS3 are provided at the front end of each unit shelf _A0 , _A1 , _A2 , _A3 .

Next, the control device of this embodiment will be explained based on FIGS. 2 to 9.

First, each relay body, switch body, and lamp are shown in uppercase letters, and each relay contact and switch contact is shown in lowercase letters.

In addition, the above-mentioned passage selection key switch CS ₀ ,
Rewriting the circuit elements such as CS ₁ , CS ₂ , CS ₃ , and listing new circuit elements: Power key switch and its contacts: PS, ps Power indicator lamp: LP Passage selection key switch: CS ₀ , CS ₁ , CS ₂ , CS ₃ its contacts: cs ₀ , cs ₁ , cs ₂ , cs ₃ path selection key switch auxiliary relay: CS ₀ X, CS ₁ X, CS ₂ X, CS ₃ X its contacts: cs ₀ x, cs _{1 x , cs 2 x , cs 3 _ _ PB 0 x 1 , PB 1} x _{1 , PB 2 x 1 , PB 3} ix Right travel relay and its contacts: M ₁ R, M ₂ R, M ₃ R, m ₁ r, m ₂ r, m ₃ r Left travel relay and its contacts: M ₁ L, M ₂ L, M ₃ L, m ₁ l, m ₂ l, m ₃ l Running detection relay and its contacts: MX, mx Stop limit switch and its contacts: LS ₀ , LS ₁ , LS ₂ , LS ₃ , lso, ls ₁ , ls ₂ , ls ₃ Auxiliary relay for stop limit _{switch :} LS ₀ X, LS _{1 X} , LS ₂ X, LS _{3 X} , Its contacts: _{LS 0} PB ₁ X ₂ , PB ₂ X ₂ , PB ₃ X ₂ Its contacts: Pb _{0 x 2} , Pb _{1 x 2 ,} Pbx _2, Pb 3 ₀ x ₃ , PB ₁ x ₃ , PB ₂ x ₃ , _{PB 3} x ₃ Its contacts: Pb ₀ x ₃ , Pb ₁ x ₃ , Pb ₂ x ₃ Pb ₃ Selection set relays and their contacts: PBX ₁ , PBX ₂ , Pbx ₁ , PBX ₂ Timer relays and their contacts: T, t.

Since the power circuits of the electric motors M ₁ , M ₂ , M ₃ are connected as shown in FIG. 2, the right running relays M ₁ R, M ₂ R, MCR or the left running relays
When any one of M ₁ L, M ₂ L, and M ₃ L operates, the electric motors M ₁ , M ₂ , and M ₃ rotate forward and reverse, and the self-propelled movable shelf
A ₁ , A ₂ , and A ₃ are designed to run to the right or left. Further, thermal relays TH ₁ , TH ₂ , and TH ₃ are interposed to protect the electric motors.

Furthermore, in Figure 2, the commercial power supply is connected to the transformer TR.
It is transformed into DC voltage by a rectifier and then used as a control power source. In FIG. 3, when the stop limit switches LS ₀ , LS ₁ , LS ₂ , LS ₃ attached to each unit shelf collide with the adjacent movable shelf, the make contacts of the limit switches LS ₀ , LS ₁ , ls ₂ and ls ₃ are closed, and the limit switch's auxiliary relays LS ₀ X, LS ₁ X, LS ₂ X, and LS ₃ X are activated.

In FIG. 8, a predetermined passage selection key switch is
When CS ₀ , CS ₁ , CS ₂ , and CS ₃ are turned on, the make contacts of the selection key switch CS ₀ , CS ₁ , CS ₂ , and CS ₃ are closed.
Auxiliary relay for same selection key switch CS ₀ X, CS ₁ X,
CS ₂ X and CS ₃
cs ₀ x _, cs _{1 x ,} cs _{2 x} , _{cs 3 1} , Pb ₂ , and Pb ₃ are closed, and the auxiliary relay of the same passage selection pushbutton
_{PB 0 X 1 ,} PB _{1 X 1 , PB 2 X 1 , PB 3}
The auxiliary relay is self-held, and in FIG. 5, the stop limit switches LS ₀ , LS ₁ ,
Condition that LS ₂ and LS ₃ are not operating (stop limit switch break contacts LS ₀ x, LS ₁ x,
ls ₂ x, ls ₃ x closed)
M ₁ R, M ₂ R, M ₃ R, M ₁ L, M ₂ L, and M ₃ L operate so that the indicator lamps L ₀ , L ₁ , L ₂ , and L ₃ in Fig. 7 light up. It's summery. Furthermore, by the operation of the make contacts Pb ₀ , Pb ₁ , Pb ₂ , and Pb ₃ of the passage selection pushbutton, the operation assist holding relay is activated in FIG.
_{PB 0 x 2 , PB 1 x 2 , PB 2 _ _ _ _}
Since the auxiliary relay is self-held and continues to pressurize a, b, c, and d, the traveling operation is completed and the traveling detection relay MX becomes inoperable, and the make contact mx of the traveling detection relay is shown in Fig. 4. Even if the interlock relay IX is opened, the interlock relay IX in FIG. 5 continues to operate.

Furthermore, the same interlock relay IX is self-maintained by its make contact ix, and the fourth
In the figure, the break contact ix is open, so in that state, even if the aisle selection pushbutton switches PB ₀ , PB ₁ , PB ₂ , PB ₃ are pressed by erroneous operation, the movable shelf will not move by itself. An interlock is established as shown.

In order to release the interlock relay IX, the predetermined path selection pushbutton switches PB ₀ , PB ₁ , PB ₂ and PB ₃ can be pressed again in FIG. 6.

In FIG. 9, _the predetermined focusing relay activation condition relays PB ₀ X _{3 ,} PB ₁ X ₃ , PB _{2 X} 3 , PB ₃
When CS ₂ and CS ₃ are restored, the break contacts cs ₀ , cs ₁ , cs ₂ , and cs ₃ of the same switches close, the focusing auxiliary relay KCLX operates, and the make contact kclx of the same relay closes.
is closed, and the focusing relay CLX is activated in FIG.

Since the embodiment shown in FIGS. 1 to 9 is configured as described above, in the state shown in FIG. 1, the first self-propelled movable shelf _A1 and the second self-propelled movable shelf When passage selection key switch CS ₁ is closed to form two passages with A ₂ , the make contact CS ₁ of the switch is closed and the break contact CS ₁ is closed.
opens, the auxiliary relay CS ₁ X of the same switch operates, and the make CS ₁ X of the same switch closes. After that, if you press the path selection pushbutton switch PB ₁ , the make contact Pb ₁ of the switch will close, the auxiliary holding relay PB ₁ X ₁ of the same switch will operate, and the make contact Pb ₁ X ₁ of the same relay will close. is self-retained, and b
Apply pressure to the point. Therefore, in FIG. 1, only the third self-propelled movable shelf _A3 does not collide with the self-propelled movable shelf on the limit switch _LS3 side, so only the stop limit switch _LS3 is inoperative, and in FIG. Since only the break contact ls ₃ x of the auxiliary relay of the stop limit switch is closed, the right travel relay M ₃ R operates and when the third self-propelled movable shelf A 3 travels to the right, the second self-propelled movable shelf A ₃ travels to the right. The stop limit switch LS ₂ of movable shelf A ₂ returns, and the break contact LS ₂ x of the auxiliary relay of the stop limit switch closes.
The right travel relay M ₂ R operates, and the second self-propelled movable shelf A ₂ travels to the right. Therefore, as the second self-propelled movable shelf _A2 moves, the stop limit switch _LS1
returns, the brake contact LS ₁ x _of the auxiliary relay _of the limit switch closes, _the operation auxiliary holding relay PB ₁ Along with being self-preserved,
Focusing relay operating condition relay PB ₁ X ₃ shown in Figure 9
operates and is self-held by the make contact Pb ₁ x ₃ of the same relay.

When the self-propelled third self-propelled movable shelf _A3 reaches the right position, the stop limit switch _LS3 is activated, the third right-hand travel relay _M3R is deactivated, and the third self-propelled movable shelf _{A3 is} activated. stops, and then a second self-propelled movable shelf
_A2 collides with the third self-propelled movable shelf _A3 , the stop limit switch _LS2 is activated, and the second right traveling relay _M2R is deactivated and stopped. As a result, while the movable shelf was running on its own, the running detection relay MX was operating, but when the movable shelf stopped, the running detection relay MX
becomes inoperable (see Fig. 6), the make contact mx shown in Fig. 4 is opened, the break contact mx shown in Fig. 9 is closed, and the focusing relay operating condition relay PB ₁ X ₃ is self-holding. Continue (even if point b is no longer pressurized). In addition, in this state, until passage selection pushbutton switch PB ₁ is pressed, point b is pressurized, so interlock relay IX continues to operate, and the make contact ix of the relay shown in Fig. 5 is The break contact ix shown in FIG. 4 is open. Therefore, control power is not supplied to the operating side of the circuit shown in FIG. 4, and other selection pushbutton switches may be
When PB ₀ , PB ₂ , and PB ₃ are pressed, no other self-propelled movable shelves are activated and are completely interlocked.

Next, when the second path selection pushbutton switch PB ₁ is pressed again, the break contact Pb ₁ of the switch opens, the operation auxiliary holding relay PB ₁ X ₂ becomes inoperable, and the self-holding contact Pb _{1 2} opens and point b is no longer pressurized.

Therefore, the indicator lamp _L1 goes out, and the interlock relay IX shown in FIG. 5 becomes inoperative, and the break contact ix of the relay closes in FIG. 4, completely releasing the interlock.

Next, when the second path selection key switch CS ₁ is turned off, the focusing auxiliary relay KCLX shown in Fig. 8 operates, and the make contact kclx of the relay is closed (the fourth
), the focusing relay CLK operates, and the make contact clx of the focusing relay shown in FIG. 5 closes.
Since the stop limit switch LS ₁ is not operating, the second left traveling relay M ₂ L is activated, and the second self-propelled movable shelf A ₂ starts traveling to the left, and furthermore, the stop limit switch LS ₂ is inoperative. Then, the third left travel relay _M3L is operated, and the third self-propelled movable shelf _A3 starts traveling to the left, and is stopped by the operation of the stop limit switches _LS1 and _LS2 , respectively.

Therefore, in this embodiment, unless the predetermined passage selection key switch CS ₁ is pressed, the passage cannot be formed even if the passage selection pushbutton switch PB ₁ is pressed, and other people cannot enter the passage. Therefore, confidentiality and theft prevention can be achieved reliably.

Furthermore, by turning off the passage selection key switch CS ₁ , the passage between the self-propelled movable shelves A ₁ and A ₂ is automatically closed, and all the self-propelled movable shelves are concentrated in one place, so that the passage formed Confidentiality, etc. can be effectively maintained from this aspect as well. Moreover, since the operation of converging the passages and the locking can be achieved at the same time, the device becomes extremely easy to operate.

Although the present invention has been described above in detail with reference to the embodiments illustrated in the drawings, the present invention is not limited to such embodiments, and can be freely modified as necessary without departing from the spirit of the present invention. The design can be modified.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of a movable shelf according to the present invention, FIG. 2 is a circuit diagram illustrating a power supply circuit and a control power source of a motor in the same embodiment, and FIGS. FIG. 2 is a circuit diagram of an example control device. A ₀ ... Fixed unit shelf, A ₁ , A ₂ , A ₃ ... Self-propelled movable shelf,
B...Wheels, C...Guide rails, _M1 , _M2 , _M3 ...Electric motors, _L0 , _L1 , _L2 , _L3 ...Indication lamps, PS, ps...Power key switch and its contacts, _CS0 , _CS1 , CS ₂ ,
CS ₃ , cs ₀ , cs ₁ , cs ₂ , cs ₃ ...Aisle selection key switch and its contacts, CS ₀ X, CS ₁ X, CS ₂ X, CS ₃ X,
cs ₀ x, cs ₁ x, cs ₂ x, cs ₃ x... Auxiliary relay of passage selection key switch and its contacts, PB ₀ , PB ₁ , PB ₂ ,
PB ₃ , Pb ₀ , Pb ₁ , Pb ₂ , Pb ₃ ... Passage selection push-button switch and its contacts, PB ₀ X ₁ , PB ₁ X ₁ , PB ₂ X ₁ ,
_{Pb 1 _ _ _ _ _ _ _ _} ，
M ₃ R, m ₁ r, m ₂ r, m ₃ r…Right travel relay and its contacts, M ₁ L, M ₂ L, M ₃ L, m ₁ l, m ₂ l, m ₃ l…left Traveling relay and its contacts, MX, mx... Traveling detection relay and its contacts, LS ₀ , LS ₁ , LS ₂ , LS ₃ , ls ₀ , ls ₁ ,
ls ₂ , ls ₃ ...stop limit switch and its contacts,
_{LS 0} X _, LS ₁ X _, LS ₂ X, LS ₃
lsx ₃ ...Auxiliary relay of stop limit switch and its contacts, PB ₀ x ₂ , PB ₁ x ₂ , PB ₂ x ₂ , PB ₃ x ₂ , Pb ₀ x ₂ ,
Pb ₁ x ₂ , Pb ₂ x ₂ , Pb ₃ x ₂ ...Operating auxiliary holding relay and its contacts, CLX, clx...Focusing relay and its contacts,
PB ₀ x ₃ , PB ₁ x ₃ , PB ₂ x ₃ , PB ₃ x ₃ , Pb ₀ x ₃ , Pb ₁ x ₃ ,
Pb ₂ x ₃ , Pb ₃ x ₃ ...Focusing relay operating condition relay and its contacts, KCLX, kclx...Focusing auxiliary relay and its contacts, PBX ₁ , PBX ₂ , Pbx ₁ , Pbx ₂ ...Path selection collective relay and its contacts, T, t...Timer relay and its contacts.

Claims (1)

[Claims] 1. Constructed so that a space corresponding to a passage can be formed between any adjacent movable shelves among a group of movable shelves arranged so that their respective frontages collide with each other and are movable in the depth direction when converging. In the mobile shelf,
A key switch that enables passage formation, a push button switch that instructs passage formation, a passage formation detection circuit that detects when the key switch is in an on state and the push button switch is turned on, and the passage formation detection circuit. a self-holding circuit that is self-held by the detection of the self-holding circuit; a shelf drive means that drives a predetermined movable shelf when the self-holding circuit is in an on state; It consists of a shelf convergence detection circuit that detects the concentration of movable shelves, and a convergence instruction circuit that instructs the shelf driving means to converge the movable shelves at one place by the detection of the shelf convergence detection circuit, and the key switch and the push button switch are configured to control the movable shelves. A movable shelf characterized by being provided for each shelf.