JP5873659B2 - display - Google Patents

Description

  The present invention relates to a picking indicator used in a picking support system for supporting an operation when picking or sorting an article in a workplace such as a factory or a warehouse.

  Conventionally, when picking or sorting goods in a factory or warehouse where a large number of articles (parts, goods, etc.) are stored, the type and quantity of the articles to be picked or sorted should not be mistaken. In order to do this, a display is installed for each frontage of the shelf in which each article is stored, and this is controlled by lighting control according to an instruction from the control computer, thereby displaying the frontage where the work occurs, the work quantity, etc. Picking support systems are widely used.

  As the conventional display device used in this picking support system, for example, there is a display device described in Patent Document 1 below. In this conventional display device, a frame or shelf member of a shelf for storing articles is used. A wiring rail is attached in advance, and wiring (wiring of a conductive cable for transmitting a control signal from a control computer in the picking support system and supplying power) is performed on the wiring rail, and then an indicator is connected to the wiring rail. It is designed to be attached.

  Further, in this conventional display, a pair of engaging portions are extended opposite to each other on both edges of the wiring rail, while the back surface of the display body (display unit) is engaged with the engaging portions. A pair of engaged parts that project is projected, and by pressing the back of the display body against the wiring rail, the engaged parts opposite to the engaging part are engaged, and the display body is wired. It is designed to be mounted on a rail. Further, at this time, by pressing the display body against the wiring rail, the connection terminal protruding from the back surface of the display body is inserted into the wiring (conductive cable) to be conducted.

  According to this conventional display, the display can be easily attached and the connection terminal of the display can be conducted to the conductive cable.

JP 2005-123316 A

  However, when attaching the conventional indicator to the wiring rail as described above, even if the operator is different, even if the same operator, the position to press the indicator by hand when attaching each indicator, Since the strength of pressing is slightly different each time, the conduction state of the connection terminal to the wiring (conduction cable) is slightly different, so that the conduction state may be poor. Moreover, it is difficult to confirm this visually.

  In many cases, this type of display is provided with a push button switch for confirming the end of work on the front surface thereof. In the conventional display as described above, the push button switch is pushed every time work completion is confirmed, and the connection terminal is pushed against the conductive cable each time, so that the conductive cable is gradually damaged. Therefore, the conduction state will be different.

  The present invention has been made to overcome the above-described problems, and an object thereof is to provide a display device that can be easily attached and can maintain a reliable conduction state.

In order to solve the above-described problems, the display according to the present invention is installed at each frontage of a shelf for storing articles to be picked or sorted at a site where the picking work or the sorting work is performed, and works related to the picking work or the sorting work. A display for displaying information, comprising a display body comprising a front case and a rear case, wherein the front case and the back case include a front case and a rear side. Engagement means is provided that allows the left and right ends to be engaged with each other in a state where the housing is open, and that can be rotated with respect to each other in a closed state while maintaining the engagement. In the closed state, a fixing means for fixing the front side housing and the back side housing on the other end side is provided, and in the closed state, the display unit is electrically connected to a conductive cable for signal transmission and power supply. Short The engaging means includes a vertical protrusion engaging projections projecting to opposite provided on one end of the front cabinet, provided at one end of the rear cabinet, the engagement And an engaging groove formed on the upper and lower ribs through which the engaging protrusion protruding from the upper and lower protrusions is inserted, and the conductive cable includes the rear side casing and the front side casing. In a state in which the body is engaged, the upper and lower protrusions are sandwiched between the upper and lower ribs in which the engagement groove portions are formed .

  According to the display device of the present invention, the left and right ends are engaged with each other in a state in which the front side housing and the back side housing are open, and the front side is in a closed state while maintaining the engagement. After rotating the side housing, it can be easily connected to the conductive cable simply by fixing with the fixing means, and there is no difference between the mounting state and the conductive state of each display unit. A conduction state can be secured. Further, since the front side housing and the back side housing are fixed by the engaging means and the fixing means, it is possible to maintain a reliable conduction state.

  Further, in the display device according to the present invention, the fixing means is a pair of U-shaped locking pieces that are respectively locked to the upper and lower side ends of the front side casing and can be moved up and down. The front side housing and the back side housing may be fixed so as to sandwich both upper and lower ends thereof. In this way, the movement in the front-rear direction of the front case is limited, so that the conduction state can be reliably maintained.

  Furthermore, in the display device according to the present invention, a conductive cable holding groove capable of penetrating and holding a conductive cable that performs signal transmission and power supply in the left-right direction is formed in the rear housing. The conductive cable can be sandwiched and held between the front-side housing and the back-side housing, and a display device is disposed in the front-side housing, and the display device The connection terminal electrically connected to the rear side housing is provided so as to protrude toward the rear side housing, and when the front side housing is in the closed state with respect to the rear side housing, You may make it the said connection terminal pierce the said conductive cable, and you may make it electrically conductive.

  Further, in the display according to the present invention, a receiving groove that can receive the tip of the connection terminal in a state in which the front side case and the rear side case are closed is formed in the rear side case. In the closed state, the connection terminal can pass through the conductive cable, and the tip end of the connection terminal can be inserted into the receiving groove.

  Furthermore, in the display device according to the present invention, the connection terminal may be formed of a plate-like member having a wide end along the direction in which the conductive cable extends. If it does in this way, a connection terminal tends to pierce a conductive cable, and the possibility that a connection terminal will bend in that case will become low.

  As described above, according to the display device according to the present invention, the left and right ends are engaged with each other in a state in which the front side housing and the back side housing are opened, and the closed state is maintained while maintaining the engagement. After rotating the front side housing in the direction, it can be easily connected to the conductive cable simply by fixing with the fixing means, and the attachment state and conduction state of each display unit will not be different Therefore, a certain conduction state can be secured. Further, since the front side housing and the back side housing are fixed by the engaging means and the fixing means, it is possible to maintain a reliable conduction state.

It is a figure which shows one Embodiment of the indicator which concerns on this invention, and is explanatory drawing which shows the use condition with which the indicator was attached to the shelf in which articles | goods are stored in a picking work place. It is a block diagram which shows an example of a structure of the picking assistance system containing the indicator which concerns on this invention. It is a figure which shows one Embodiment of the display which concerns on this invention, (a) is the perspective view which shows the state which attached the conductive cable, (b) shows the state which removed the conductive cable. FIG. 4 is an exploded perspective view of the display shown in FIG. 3. It is a perspective view which shows the state decomposed | disassembled into the front side housing | casing and the back side housing | casing in the display shown in FIG. FIG. 4 is an explanatory diagram showing the state of the display shown in FIG. 3 before the front case is attached to the rear case across the conductive cable. FIG. 7 is an explanatory diagram showing a state in which the conductive cable is attached to the back side housing (a state before the front side housing is attached) in the display shown in FIG. 6. FIG. 8 is an explanatory diagram showing a state in which the right end portion of the front side case is engaged with the right end portion of the back side case in the display shown in FIG. 7. FIG. 9 is an explanatory diagram showing a state in which the front housing is closed with respect to the rear housing in the display shown in FIG. 8. FIG. 10 is an explanatory view showing the display shown in FIG. 9 in a state where the front side housing is completely attached to the rear side housing. It is the cross-sectional schematic between the BB lines of FIG. FIG. 3A is a schematic cross-sectional view taken along the line A-A in FIG. 3, and shows a state in which the front case is fixed to the rear case by the fixing means, and FIG. It is the cross-sectional schematic between CC of FIG., Comprising: It is a figure which shows the state which canceled the fixing means. FIG. 4 is a partially enlarged view (perspective view) showing an engaging means for engaging the back side case and the front side case in the display shown in FIG. 3. FIG. 14 is an explanatory diagram (descriptive diagram showing a cross-section at a DD line position in FIG. 13) for explaining a state of engagement with the cross-section of the engaging portion of the engaging means shown in FIG. 13.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram illustrating an example of a work place where a display 1 according to the present invention is installed. In the picking work place, the display 1 is installed at each frontage S1 of a shelf S that stores articles to be picked. Is shown. As shown in FIG. 1, the display 1 is connected by a conductive cable L, and a power source and a control signal are supplied via the conductive cable. The display 1 is connected to a control terminal via a conductive cable as shown in FIG. 2, for example, and is installed at a frontage where picking work occurs under the control of the control terminal (based on a command from the control computer) The lamp 3 of the container 1 is turned on (emitted) to notify the worker of the occurrence of the work and to display the quantity of articles to be picked in the quantity display section 4 to inform the worker. The lamp 3 is provided with a push button switch. When an operator who has finished the work in the front area where the lamp 3 is lit, presses the lamp 3, the push button switch is depressed, the lamp 3 is turned off, and a signal notifying the end of the work. Is transmitted to the control terminal.

  FIG. 2 is a block diagram showing an embodiment of the configuration of the picking support system including the display 1 according to the present invention. The picking support system shown in FIG. 2 includes a control computer C101, a plurality of control terminals C201 to C20n, and a plurality of picking indicators 1a1 to 1ax, 1b1 to 1by, ..., 1n1 to 1nz.

  The control computer C101 and the plurality of control terminals C201 to C20n are connected to each other via a local area network (hereinafter referred to as “LAN”) cable EC so as to constitute a LAN. In this embodiment, a 10BASE-T cable connected to a hub (not shown) is used as the LAN cable EC. However, the present invention is not necessarily limited to this form. It is possible to apply various types of LANs as long as they are used. The LANs are not limited to wired ones and may be wireless, or may be a combination of wired and wireless. Good.

  As the control computer C101, a general personal computer or a computer such as a server is arbitrarily selected and used, and is connected to the LAN cable EC via a LAN adapter or the like mounted therein. Further, the control computer C101 executes control commands and the like for controlling the picking indicators 1a1 to 1ax, 1b1 to 1by,..., 1n1 to 1nz by executing a predetermined control program. And receives responses from the control terminals C201 to C20n, and controls the operations of the control terminals C201 to C02n. The control computer C101 is not limited to one, and a plurality of computers can be used as necessary. In this case, each control computer is set with an IP address for identifying and specifying each control computer in the LAN. Moreover, you may make it connect other apparatuses, such as a printer, via LAN as needed.

  Each of the control terminals C201 to C20n has a LAN interface function, receives a control command transmitted from the control computer C101 via the LAN cable EC, and picks indicators 1a1 to 1ax, 1b1 based on the control command. .., 1n1 to 1nz are controlled, and responses from the picking indicators 1a1 to 1ax, 1b1 to 1by,..., 1n1 to 1nz to the control command are received and sent to the control computer C101. Send. Each control terminal C201 to C20n is set with an IP address for identifying and specifying each control terminal C201 to C20n in the LAN, and communication with the control computer C101 is performed using this IP address. .

  The control terminal C201 is connected to a plurality of picking indicators 1a1 to 1ax via two conductive lines L1a and L1b, and the picking indicators 1a1 to 1ax can decode control commands received from the control computer C101. And is transmitted to the picking indicators 1a1 to 1ax, thereby controlling the operations of the picking indicators 1a1 to 1ax. Further, the control terminal C201 converts the response signals from the picking indicators 1a1 to 1ax into a format that can be read by the control computer C101, and transmits it to the control computer C101 that has transmitted a control command corresponding to this response. The other control terminals C202 to C20n are configured in the same manner as the control terminal C201.

  Each of the plurality of picking indicators 1a1 to 1ax is set with an address for identifying and specifying each of the terminals 1a1 to 1ax, and as shown in FIG. It is attached. Each of the picking indicators 1a1 to 1ax is supplied with power from the control terminal C201 via the two conductive lines L1a and L1b, and is communicably connected to the control terminal C201, and operates based on a command from the control terminal C201. In addition, a predetermined response to the command is transmitted to the control terminal C201. The other picking indicators 1b1 to 1by,..., 1n1 to 1nz are configured in the same manner as the picking indicators 1a1 to 1ax.

  For example, each picking indicator 1 includes a lamp 3 for instructing an operator of an article to be picked and a quantity display unit 4 for displaying the picking quantity of the article, and is stored in a shelf on which the picking indicator 1 is installed. When the article being picked is to be picked, the lamp 3 is turned on and the picking quantity is displayed on the quantity display unit 4 in accordance with the control of the control terminal. As a result, the picking operator can easily identify the frontage where the article to be picked is stored from among a large number of frontage, can know the picking quantity, and can support the operator's picking work.

Thereafter, when the picking operation from the designated shelf front S1 is completed, the worker presses the lit lamp 3. When the lamp 3 is pressed, the picking indicator 1 turns off the lamp 3 and transmits a work end response signal indicating that the work is completed to the control terminal via the two conductive wires. The control terminal converts the received work end response signal into a format readable by the control computer and transmits it to the control computer, and the control computer detects that the picking work has been completed. Therefore, since the work manager can immediately know that the picking work has been completed, the picking work can be easily managed.
Next, the display (picking display) 1 will be described in detail.

  3A and 3B are perspective views showing an embodiment of the display 1 according to the present invention, where FIG. 3A is a diagram showing only the display 1 while FIG. is there.

  As shown in FIG. 3, the display 1 in this embodiment includes a lamp unit 3 and a quantity display unit 4 on the front surface of a display unit body 2 having a substantially rectangular parallelepiped shape. The lamp unit 3 includes a lens 31. In this embodiment, the lens 31 is made of polycarbonate, has translucency, and has a substantially quadrangular truncated pyramid shape that tapers forward. A self-luminous body (chip LED) 32 is arranged on the back side of the lens 31 and emits light based on a lighting command from the control terminal shown in FIG. A push button switch 33 is disposed on the back side of the lens 31 so as to be in contact with the lens 31. When the lens 31 is pressed, the push button switch 33 is depressed and the self-luminous body 32 is turned off. The quantity display unit 4 is constituted by a liquid crystal panel 41, and displays the quantity of articles to be picked based on a command from the control terminal shown in FIG. Further, a cancel button 5 is provided so that the work command can be canceled on each display side.

  The display device shown in FIG. 3 can be divided into a rear housing 6 and a front housing 7 as shown in FIG. Further, as shown in FIG. 4, the front housing 7 can be divided into a front cover 7a, a substrate 7b, and a main body 7c, which are integrated in advance (in this embodiment). The front cover 7a, the substrate 7b, and the main body portion 7c are integrally screwed in advance with a plurality of screws N). In this embodiment, the front cover 7a, the main body 7b, and the rear housing 6 are all integrally formed of ABS resin. Further, as shown in FIG. 4, a self-luminous body (chip LED) 32, a push button switch 33, a liquid crystal panel 41 of the quantity display section 4, a cancel button 5 and an electric connection (not shown) are electrically connected to the substrate 7b. Wiring and other necessary members for operation are provided.

  As will be described later, the back-side housing 6 and the front-side housing 7 hold the conductive cable L in a holding groove 63 provided in the back-side housing 6, and in this state, the back-side housing 6 and the front-side housing 7 is integrated with the conductive cable L. That is, as shown in FIGS. 6 to 10, the conductive cable L is first held in the conductive cable holding groove 63 formed in the back side housing 6 (see FIG. 6). 7 to 8, the rear housing 6 and the front housing 7 are engaged with each other by the engaging means 81 in an open state (in this embodiment, as indicated by an arrow X in FIG. 7). Thus, the front housing 7 is engaged with the rear housing 6 at a substantially right angle), and the front housing 7 is attached to the rear housing 6 with the engaging means 81 as an axis. It is made to rotate (arrow Y in FIG. 9). As a result, the rear opening 71 of the front housing 7 is overlapped with the rear housing 6 so that the front housing 7 and the rear housing 6 are integrated (FIG. 10). Further, as shown in FIG. 10, the fixing means 82 in the opened state is pressed from above and below to close it as shown in FIG. Can be firmly fixed to.

  In this embodiment, an AS-i (Actuator Sensor Interface) cable is used as the conductive cable L. Needless to say, the AS-i cable is a conductive cable used in an FA network system (AS-Interface bus system) that has been spreading worldwide, and two conductive lines La and Lb covered with an insulating material are parallel to each other. The two conductive wires La and Lb are further covered with a resin or rubber material to form a single cable, and the power supply and signal transmission to the sensor and other I / O modules are performed by this cable. It is a so-called two-wire conductive cable that can perform the above simultaneously.

  The back side housing 6 is formed by forming a rib 62 having a predetermined height around a substantially rectangular plate-like member 61. A conductive cable holding groove 63 that can arrange and hold the conductive cable L in the left-right direction is formed on the front side of the rear housing 6. In this embodiment, the conductive cable holding groove 63 is a groove having a shape along the cross-sectional shape of the cable L so that the AS-i cable L can be attached so as not to mistake the polarity. A plurality of holding claws 631 are formed so that the conductive cable L held in the conductive cable holding groove 63 does not easily fall off.

  Further, an engaged portion 65 is formed at the right end portion of the back side housing 6 shown in FIG. The engaged portion 65 is provided so as to protrude rightward from the plate-like member 61 of the rear housing 6. The engaged portion includes two upper and lower opposing ribs 65a and 65b that protrude forward and extend along the longitudinal direction of the back-side casing 6, that is, the extending direction of the conductive cable L. . On the outside of the upper and lower ribs 65a and 65b, that is, on the upper surface of the upper rib 65a and the lower surface of the lower rib 65b, there are engagement groove portions 651 and 651 with which engagement protrusions 751 and 751 of an engagement portion 75 described later are engaged. Is formed. As shown in FIGS. 5, 13, and 14, the engaging groove portion 651 is a concave groove that can be inserted into an engaging protrusion 751 described later, and the front end thereof is directly engaged from the front side to the back side. An introduction groove portion 651a that can be inserted through the mating protrusion 751 is formed, and an arc-shaped groove portion 651b that curves in an arc shape to the right (that is, the right end portion direction of the rear housing 6) is formed from the introduction groove portion 651a to the back. ing. When this is seen in the cross-sectional view shown in FIG. 14A, the engaging groove portion 651 is substantially L-shaped, and the portion excluding the introduction groove portion 651a, that is, the arc-shaped groove portion 651b, has an arc-shaped outer peripheral portion. (This arc-shaped groove 651b has a shape in which the right end portion side of a substantially semicircle is partially cut away as shown in FIG. 14).

  In addition, a plurality of screw holes 69 are formed in the rear housing 6. Thereby, the back side housing | casing 6 can be screwed and fixed to the predetermined position of the shelf S with the screw N.

  As described above, the front housing 7 is obtained by integrating the front cover 7a, the substrate 7b, and the main body 7c in advance by screwing. As shown in FIG. A (recess) 71 is formed, and the recess 71 is attached to the rear housing 6 so as to cover the rear housing 6. The front side housing 7 is substantially U-shaped by partially cutting off the right end portion in front view, and an engaging portion 75 for engaging with the engaged portion 65 of the back side housing 6 is provided. Is formed.

  The engaging portion 75 includes engaging protrusions 751 and 751 that protrude from the opposing surfaces of the upper and lower protrusions 75a and 75b, respectively. The engagement protrusion 751 has a height dimension that can be inserted into the engagement groove portion 651, and as shown in FIG. 14, the cross-sectional shape is partially cut out of a semicircle, more specifically, a semicircular shape The right end of the protrusion is cut out on a line perpendicular to the semicircular straight line. Further, the cross-sectional arc shape of the engagement protrusion 751 is a shape along the arc shape of the engagement groove portion 651. Accordingly, as shown in FIG. 7 (arrow X) and FIGS. 14A to 14B, the engagement protrusion 751 is engaged with the engagement protrusion 751 so as to be inserted from the introduction groove 651a of the engagement groove 651. As shown in FIG. 9 (arrow Y) and FIG. 14 (c), the front groove 7 is used as the rotation axis and the front housing 7 is used as the back housing 6. When the engagement projection 751 is rotated in the closing direction (overlapping direction), the arc-shaped portion 751a of the engagement projection 751 slides on the arc-shaped portion 651b of the engagement groove 651 so that the engagement projection 751 is engaged. It is guided to the back of the groove portion 651. Then, when the front casing 7 is closed with respect to the rear casing 6, that is, when the front casing 7 and the rear casing 6 are completely overlapped, as shown in FIG. As described above, the engaging protrusion 751 is configured to be fitted in the innermost portion (that is, the arc-shaped portion 651b) of the engaging groove 651.

  Note that the engagement protrusion 751 and the engagement groove 651 are not shaped as in the present embodiment, and in particular, the engagement protrusion 751 is not a quarter (center angle 90 degrees) arc shape, but is further enlarged. The front housing 7 cannot be attached to or detached from the rear housing 6 unless the front housing 7 is substantially perpendicular to the rear housing 6. Therefore, as shown in FIG. 14C, in the state where the engagement protrusion 751 and the engagement groove 651 are engaged and the front housing 7 is slightly rotated with respect to the rear housing 6. Since the engaging protrusion 751 is caught by the edge of the engaging groove 651, the front side housing 7 cannot be pulled forward. Therefore, in this state, even if the attaching operator once removes his / her hand from the front-side casing 7, the front-side casing 7 does not easily fall off from the rear-side casing 6, and work safety can be ensured. It is made like that. Of course, the engagement between the engagement protrusion 751 and the engagement groove 651 is released even when the front casing 7 is completely closed with respect to the rear casing 6. There has been no such thing.

  Further, from the back side of the front housing 7, two light sources (chip LEDs) 32 arranged on the substrate 7 b, the push button switch 33, the liquid crystal panel 41 of the quantity display unit 4, etc. are electrically connected. The connection terminals 77a and 77b are arranged so as to protrude. The two connection terminals 77a and 77b are connected to the conductive lines La and Lb of the conductive cable L as shown in FIG. 11 when the front casing 7 is closed with respect to the rear casing 6. It is arranged at the position where it pierces and conducts. In this embodiment, the connection terminals 77a and 77b are formed of a stainless steel plate-like member, the extending direction of the conductive cable L, and the direction in which the front side casing 7 is closed with respect to the rear side casing 6, That is, it is wide along the Z direction in FIG. 7 and is tapered toward the tip. As a result, the connection terminals 77a and 77b are pierced with little stress on the conductive cable L, so that a conductive state can be ensured reliably, and the possibility that the connection terminals 77a and 77b will be bent or damaged becomes very small. .

  As shown in FIG. 11, when the front housing 7 is closed with respect to the rear housing 6, the front ends of the connection terminals 77a and 77b pass through the conductive cable L and the rear side thereof. It is made to protrude. Further, the rear housing 6 is formed with a terminal receiving groove 67 that can receive the leading end portions of the connection terminals 77a and 77b that pass through. As a result, a stable conduction state can be secured, and the connection terminals 77a and 77b are not damaged.

  In this embodiment, the upper and lower side walls (ribs) 62 of the rear housing 6 have a predetermined height and extend in parallel along the extending direction of the conductive cable L. In addition, the inner upper and lower side walls 71a and 71b in the rear opening 71 of the front housing 7 extend in parallel along the extending direction of the conductive cable L. In addition, the vertical height dimension (p in FIG. 8) of the back side casing 6 is substantially the same as the height dimension (q in FIG. 8) of the back opening 71 of the front side casing 7 (the back side casing 6). The vertical height dimension p is a dimension slightly smaller than the height dimension q of the rear opening of the front housing 7. As a result, the upper and lower side walls 62 a and 62 b of the rear side housing 6 and the inner upper and lower side walls 71 a and 71 b in the rear opening 71 of the front side housing 7 are compared with the rear side housing 6. 7 (when the engaging portion 75 and the engaged portion 65 are rotated and integrated with each other as a rotation shaft), the front housing 7 can be rotated without shifting up and down. Therefore, the connection terminals 77a and 77b can be reliably pierced and conducted to the conductive lines La and Lb of the conductive cable L.

  Next, fixing means 82 for finally fixing the front housing 7 to the rear housing 6 will be described with reference to the drawings. FIG. 12B is a diagram showing a cross section taken along the line CC in FIG. 10, and is a diagram showing a state in which the fixing means 82 is released. The fixing means 82 is mainly composed of a fixing latch 78 having a U-shaped cross section provided in the front side housing 7. The fixing fasteners 78 are provided on the left and right opposite sides (left side) of the engaging portion 75 in the front side housing 7, and are provided one at each of the upper and lower ends of the front side housing 7. Each fixing locking tool 78 is arranged such that a front side piece (base end side) 781 is sandwiched between the main body part 7c of the front side case 7 and the front cover 7a, and is vertically arranged. It can be slid and operated, so that it can be moved in and out from the upper and lower end surfaces of the front case 7.

  When the front housing 7 is attached to the rear housing 6, the upper and lower fixing fasteners 78 protrude upward and downward as shown in FIG. 12B (unlocked state or Open front), the front housing 7 is attached to the rear housing 6, and the upper and lower fixing fasteners 78 are slid downward and upward respectively in an integrated state. Are firmly fixed so that the upper end surface of the fixing lock 78 and the lower end surface of the lower lock 78 are flush with the upper and lower side wall surfaces of the front housing 7 (fixed state). Or closed state).

  At this time, the upper and lower fixing fasteners 78, 78 are configured to sandwich the back side housing 6 from above and below, and the inner side surface of the rear side piece (tip portion) 782 of the fixing stopper 78 is The rear side housing 6 is configured to be locked to the locked portion 68 on the back side. A locking groove 782a that can receive the locking protrusion 681 formed on the locked portion 68 of the back side housing 6 is formed on the inner surface of the back side piece 782 of the fixing locking tool 78. It is formed so that the fixed state is not easily released.

  In addition, the front surface of the front side piece 781 of the fixing locking tool 78 is fitted to a locking projection 791 formed to protrude from the back of the main body of the front side housing 7 in the fixed state (closed state). A locking projection fitting recess 781a is formed. Thus, once the fixed state is established, the fixed state is not easily released, and thus the state in which the rear side housing 6 is firmly fixed to the front side housing 7 is maintained.

  Note that the locking projection 791 provided on the front housing 7 side is easily locked to a part of the fixing locking device 78 when the fixing locking device 78 is opened, so that It is designed not to be in a closed state. In this embodiment, the upper locking member 78 is locked to the lower end portion 781m of the front side piece 781 and the upper end portion 781n of the front side piece 781 of the lower fixing portion 78. Yes. As a result, in the state in which the upper and lower fixing latches 78 are opened (the upper and lower fixing latches 78 project upward and downward from the upper and lower end surfaces of the front-side housing 7 respectively), Since the open state can be maintained without putting a hand on the tool 78, the front side housing 7 can be easily attached to the back side housing 6.

  Further, the base end portion of the front side piece 781 of the upper and lower fixing fasteners 78 (the lower end portion 781m of the front side piece 781 of the upper fixing fixture 78 and the front side of the lower fixing fixture 78). The upper ends 781n) of the side pieces 781 are respectively formed with stopper portions 781c and 781d extending in the rear direction. When the fixing locking tool 78 is in an opened state, the stopper portions 781c and 781d are formed in the main body portion. The fixing locking tool 78 is prevented from falling off from the front side housing 7 by engaging with the portion.

  The method of attaching the display device 1 in the present embodiment having the above-described configuration will be described again. First, the rear-side housing 6 is attached to a predetermined position corresponding to each frontage S1 of the shelf S in which articles are stored ( FIG. 6). In addition, in this embodiment, although it attaches by screwing, it is not restricted to this, For example, it can attach by an adhesive agent, a double-sided tape, and other arbitrary means.

  Next, the conductive cable (AS-i cable) L is arranged and held on the conductive cable holding portion 63 of the back side housing 6 attached to the shelf S (FIG. 6). Then, the engaging portion 75 of the front side housing 7 is engaged with the engaged portion 65 of the back side housing 6. More specifically, the engaging protrusion 751 of the engaging portion 75 is moved to the engaging groove portion 651 of the engaged portion 65 so that the front housing 7 is substantially perpendicular to the rear housing 6. It is inserted and engaged so as to be pushed in (FIGS. 6 to 7). At this time, the two connection terminals 77a and 77b provided on the back surface of the front housing 7 are inserted into the conductive lines La and Lb of the conductive cable L, respectively, and are conducted to the conductive lines La and Lb (FIG. 11).

  Further, the front housing 7 is rotated around the engaging portion 75 and the engaged portion 65 as an axis, and the rear opening of the front housing 7 is overlapped with the rear housing 6 so as to overlap each other. The two are integrated (FIGS. 9 to 10). Finally, the fixing means 82 (that is, the fixing latches 78, 78) are pressed and closed so as to be sandwiched from above and below, thereby firmly fixing the front side casing 7 to the rear side casing 6. .

  As described above, the display according to the present invention has been described by showing specific embodiments, but the present invention is not limited to the above-described embodiments, and various forms are possible without departing from the spirit of the present invention. Etc. can be changed. That is, the embodiment disclosed this time is illustrative in all respects, and does not serve as a basis for limited interpretation. Therefore, the technical scope of the present invention is not construed by only the above-described embodiments, but is defined based on the description of the scope of claims, and is within the meaning and scope equivalent to the scope of claims. All changes are included.

DESCRIPTION OF SYMBOLS 1 Indicator 2 Indicator body 3 Lamp part 4 Quantity display part 5 Cancel button 6 Rear side case 65 Engagement part 651 Engagement groove part 7 Front side case 71 Rear opening part 75 Engagement part 751 Engagement protrusion 77a 77b Connecting terminal 81 Engaging means 82 Fixing means C101 Control computer C201 to C20n Controller (control device)
L Conductive cable La, Lb Conductive wire S Shelf S1 Frontage

Claims (5)

A display for displaying work information related to picking work or sorting work, installed at each frontage of a shelf for storing articles picked or sorted at a site where picking work or sorting work is performed,
It has a display unit consisting of a front case and a rear case,
The front side case and the rear side case are closed with the front side case and the rear side case being openable so that the left and right ends can be engaged with each other and the engagement is maintained. Engaging means are provided that can be pivoted to each other in the direction, and in the closed state, a fixing means for fixing the front side housing and the back side housing on the other end side is provided,
In the closed state, the display is made conductive with a conductive cable for signal transmission and power supply,
It said engaging means includes a vertical protrusion engaging projections projecting to opposite provided on one end of the front cabinet, provided at one end of the rear cabinet, the engagement And an engaging groove formed on the upper and lower ribs through which the engaging protrusion protruding from the upper and lower protrusions is inserted,
The conductive cable is sandwiched between the upper and lower protrusions via the upper and lower ribs in which the engagement groove portions are formed in a state where the rear case and the front case are engaged. Indicator.   The fixing means are a pair of U-shaped locking pieces that are locked to the upper and lower side ends of the front case and can move up and down, respectively, so that the upper and lower ends of the rear case are sandwiched between the front side The display device according to claim 1, wherein the housing and the rear housing are fixed. A conductive cable holding groove capable of penetrating and holding a conductive cable for signal transmission and power supply in the left-right direction is formed in the rear side housing,
Thus, the conductive cable can be sandwiched and held between the front housing and the back housing,
A display device is arranged in the front side housing, and a connection terminal electrically connected to the display device is provided so as to protrude toward the rear side housing. 3. The display device according to claim 1, wherein when the casing is in the closed state with respect to the rear-side casing, the connection terminal is inserted into the conductive cable to be conducted. .   In the back side housing, a receiving groove is formed that can receive the tip of the connection terminal when the front side housing and the back side housing are closed, so that the connection terminal is a conductive cable in the closed state. The display device according to claim 3, wherein the display portion is configured such that the tip end portion thereof is inserted into the receiving groove.   The display device according to claim 3 or 4, wherein the connection terminal is formed of a plate-like member having a wide end along a direction in which the conductive cable extends.

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