WO2012035878A1

WO2012035878A1 - Terminal for picking task

Info

Publication number: WO2012035878A1
Application number: PCT/JP2011/066481
Authority: WO
Inventors: 池田　佳弘; 厚志門屋
Original assignee: 株式会社ｏｎｅＡ; パナソニック電工Ｓｕｎｘ株式会社
Priority date: 2010-09-13
Filing date: 2011-07-20
Publication date: 2012-03-22
Also published as: JP4914931B2; KR20120055538A; CN102523743A; KR101182970B1; JP2012056752A

Abstract

The present invention addresses the problem of providing a terminal that is for a picking task and that is provided with a lever switch (200) having the durability to be able to be used over the long term even if used in a picking task wherein operations are performed frequently. The terminal is characterized by being provided with a designation means that designates a picking timing to a user and a lever switch (200) that is used for confirming that the picking has been completed, and by the lever switch (200) being provided with: a lever body (210); a non-contacting switching element (250) that can switch between an on state and an off state by means of an operation of the lever body (210); and a support means (260) that sandwiches a portion of the lever body (210), supporting the lever body (210), supports the lever body (210) at a standby position, and supports the lever body (210) in a manner so as to permit the lever body (210) operation for switching the switching element (250) to the on state or the off state.

Description

Picking terminal

The present invention relates to a picking work terminal comprising instruction means for instructing the timing of picking (part removal) to an operator, and a lever switch used for confirming completion of picking.

Conventionally, in a factory where assembly production is performed, parts necessary for assembling each product are picked (taken out) from a parts shelf in which each part is stored and delivered to the assembly line of each product. When assembling and manufacturing a wide variety of products, the parts picked from the parts shelves differ from product to product, so the operator must pick the parts determined for each product from the parts shelf.

In order to support such picking work, in many factories, one or more indicators are provided at the take-out position for each part of the parts shelf. The picking device is introduced to control lighting of each display (see Patent Document 1). This picking device lights up and displays a part that needs to be picked for each assembly product, and notifies the worker of the part. Further, the picking apparatus instructs the timing of picking the part. In the picking device, a lever switch is provided for each display. The lever switch is a switch operated to confirm that the picking is completed when the picking of the component corresponding to the lit display is completed. When the picking device receives a response to confirm the completion of picking from all the lever switches corresponding to the lit display unit (the lever switch is operated), the picking device recognizes that all the parts have been picked, and notifies the operator to that effect. To inform. Then, the picking apparatus moves to a picking operation for a product to be assembled next.

The lever switch used here includes, for example, a simple contact switch as disclosed in Patent Document 2. This simple contact switch includes an operation lever, a rod-shaped electrode connected to the tip of the operation lever and having a hook-shaped portion in the middle, a cylindrical cylindrical inner surface electrode insulated from the electrode, A cylindrical bottom electrode provided at the bottom of the cylindrical inner surface electrode. By tilting the operation lever in the circumferential direction, the electrode is tilted inside the cylindrical inner surface electrode. When the electrode is inclined and the saddle-shaped portion of the electrode comes into contact with the cylindrical inner surface electrode, the simple contact switch becomes conductive. Further, by moving the operation lever in the axial direction, the electrode is pulled out in the direction of the cylindrical core of the cylindrical inner surface electrode. Then, the electrode is pulled out, and the simple contact switch becomes conductive when the bowl-shaped portion of the electrode comes into contact with the cylindrical bottom electrode. Thus, the simple contact switch includes a contact type switching element.

Japanese Unexamined Patent Publication No. 2006-206316 Japanese Unexamined Patent Publication No. 2006-294574

As described above, the lever switch used in the picking device is operated every time the completion of picking is confirmed. Therefore, the lever switch is frequently operated. Since the lever switch listed in Patent Document 2 is switched by a contact type switching element, the durability is not high due to contact failure or wear of the contact portion. Therefore, the lever switch used for such an application has been required to have high durability that can be used for a longer period of time.

In view of such circumstances, the present invention provides a picking work terminal including a lever switch having durability that can be used for a long period of time even when used for picking work that is frequently performed. And

The picking work terminal according to the present invention is a picking work terminal comprising: instruction means for instructing the timing of picking to an operator; and a lever switch used for confirming that the picking is completed. The lever switch includes a lever body, a non-contact type switching element that can be switched between an on state and an off state by operation of the lever body, and supports the lever body with a part of the lever body interposed therebetween, and the lever Support means for supporting the main body at the standby position, and supporting means for supporting the lever main body to allow the operation of the lever main body for switching the switching element to an on state or an off state. To do.

According to such a configuration, the lever switch is switched between the on state and the off state by the operation of the lever body supported by the support means at the standby position with a part of the lever body sandwiched therebetween. In this way, even when used for picking work in which the lever switch is operated every time picking is completed, the picking work terminal switches between an on state and an off state without contact. Therefore, this picking work terminal can be provided with durability that can be used for a long period of time.

In the present invention, the switching element includes a magnet provided at one end of the lever main body, and a magnetic sensor capable of detecting a change in magnetic field caused by displacing the position of the one end of the lever main body, and the support means includes The first support part that supports the lever body so that the magnetic sensor is located at a position facing the magnet while the lever body is supported at the standby position, and one end side of the lever body can contact the first support part A second support portion that biases and supports the lever main body toward the first support portion so that the lever main body is positioned in a stable state, and a part of the lever main body is formed by the first support portion and the second support portion. It is preferable that the lever main body is supported by being sandwiched.

According to such a configuration, the switching element can be switched between the on state and the off state in a non-contact manner by the positional relationship between the magnet provided at the one end of the lever body and the magnetic sensor provided at the first support portion. Composed. Therefore, even if the picking work terminal is used for picking work in which the lever switch is operated every time picking is completed, the picking work terminal has durability that can be used for a long period of time.

In the present invention, it is preferable that the second support portion is constituted by an elastic body.

According to this configuration, the lever main body can change the positional relationship between the magnet provided in a part of the lever main body and the magnetic sensor provided in the first support portion while resisting the elastic force of the elastic body. it can. Therefore, the picking work terminal can provide a degree of freedom in the operation of the lever body.

In the present invention, the first support portion includes a protruding portion that protrudes in an annular shape, and a part of the lever main body is a disc portion that is provided with a flange so as to be able to contact the entire circumference of the annular protruding portion. It is preferable.

According to such a configuration, the lever switch is turned on and off by the operation of the lever body supported by the support means at the standby position with the disc part sandwiched between the projection part and the second support part (or elastic body). Switch between states. In accordance with the operation of the lever main body, the first support portion can bring the disk portion of the lever main body into contact with the annular protrusion. The first support portion can correspond to the operation in the entire circumferential direction in the axial direction of the lever body. Therefore, even if the picking work terminal is used for picking work in which the lever switch is operated every time picking is completed, the picking work terminal has durability that can be used for a long period of time.

As described above, the picking work terminal according to the present invention has an excellent effect of having durability that can be used for a long period of time, even when used for picking work that is frequently performed.

FIG. 1 is a front external view of a picking work terminal according to an embodiment. FIG. 2 is a side external view of the picking work terminal according to the embodiment. FIG. 3 shows a cross-sectional view of the lever switch (when the lever main body is in the standby position) of the picking work terminal according to the embodiment. FIG. 4 shows a cross-sectional view of the lever switch (when the lever main body is tilted) of the picking work terminal according to the embodiment. FIG. 5 shows a cross-sectional view of the lever switch (when the lever main body is in a pulled state) of the picking work terminal according to the embodiment.

A picking work terminal according to an embodiment of the present invention will be described with reference to the drawings. First, a picking device (not shown) for controlling the picking work terminal according to the embodiment will be briefly described. The picking device is provided for each part that is necessary for assembling a product to be assembled and the position where the part is stored, and a picking device main body (not shown), and the corresponding part is a target of picking. And a picking work terminal (not numbered) for notifying the worker of whether or not.

The picking device main unit is connected to each picking work terminal. Then, by associating one part for each picking work terminal, the picking apparatus main body specifies the position of the part. The picking work terminal includes an instruction means 100 (see FIGS. 1 and 2) for instructing picking timing when the corresponding part is a picking target, and a lever switch 200 for confirming completion of picking the corresponding part. (See FIG. 1 and FIG. 2).

The operation of the picking apparatus configured as described above will be described. First, the picking apparatus main body transmits a signal to a picking work terminal corresponding to a part to be picked. Each picking work terminal that has received the signal notifies the worker of the parts to be picked. In this way, the picking apparatus notifies the operator of one or more types of parts necessary for assembling one product and the position of the parts, and instructs the timing of picking.

When the worker finishes picking the part, the operator operates the lever switch 200 of the picking work terminal corresponding to the part. The picking apparatus main body recognizes that all parts have been picked by receiving a response of confirmation of completion of picking from all the picking work terminals corresponding to the parts that were picked. When a part is picked, the picking device body is configured to move to a part picking operation for assembling the next product.

Next, the structure of the picking work terminal according to the embodiment will be described with reference to the drawings. The picking work terminal is attached to a parts shelf in which parts of a product to be assembled and manufactured are stored. This parts shelf is, for example, a pipe rack assembled with pipes. One picking work terminal is assigned to each part (or a set of parts group). A plurality of picking work terminals are arranged on the parts shelf so as to correspond to the respective parts. The picking work terminal according to the present embodiment is provided in a pipe rack that is partitioned by a pipe and a plate material for each part, and is attached to a pipe at the upper end on the front side that partitions the corresponding part. That is, the picking work terminal is disposed above the corresponding component.

As shown in FIGS. 1 and 2, the picking work terminal according to the embodiment includes an instruction means 100 for instructing the timing of picking to an operator, and a lever used for confirming that the picking has been completed. A switch 200 and a terminal main body 300 to which the instruction unit 100 and the lever switch 200 are attached are provided.

The instructing unit 100 includes an informing unit 110 that visually notifies the worker of the picking timing by lighting and displaying, and a picking restricting unit 120 that regulates picking of a corresponding part to the worker. . Note that the instruction unit 100 may include only one of the notification unit 110 and the picking restriction unit 120.

The notification means 110 according to the present embodiment is a lamp 110 (hereinafter, described with the same reference numerals as the notification means) including an LED, a light bulb, and the like. The lamp 110 is provided on the front side of the terminal main body 300 (the front side in FIG. 1 and the left side in FIG. 2). The lamp 110 is disposed at a position that is easily visible to an operator standing in front of the terminal body 300. The lamp 110 is connected to a control board built in the terminal body 300. The lamp 110 is configured to be lit and displayable by this control board. The lamp 110 is not limited to one that is lit and displayed. The lamp 110 may be any notification means that appeals to the operator's vision, such as blinking display. The lamp 110 according to the present embodiment is configured to be lit by a signal from the control board of the terminal body 300. The lamp 110 is configured to be turned off by the operation of the lever switch 200.

The picking restricting means 120 according to the present embodiment is provided with a shutter 120 provided at a position that hinders when an operator picks a corresponding part (hereinafter, will be described with the same reference numerals as the picking restricting means). It is. The shutter 120 operates only when the part needs to be picked, thereby allowing the part to be picked. The shutter 120 includes a pair of

long arms

121 and 121 having a shape in which a midway portion is bent, and a plate-like shutter main body 122 provided on the pair of

arms

121 and 121.

One end side of each of the pair of

arms

121 and 121 is provided on both side surfaces of the terminal main body 300. The pair of

arms

121 and 121 are configured to be rotatable about

shafts

123 and 123 protruding at right angles to the longitudinal direction. The shutter main body 122 has an area that can cover a range in which a worker can pick up a hand when picking the corresponding part so as to prevent the worker from picking a corresponding part.

The pair of

arms

121 and 121 are attached in parallel to the shutter main body 122, respectively. The pair of

arms

121 and 121 rotate in synchronization with each other. The range of rotation of the pair of

arms

121 and 121 is from a closed position (the position of the shutter 120 indicated by a solid line in FIG. 2) in which the other end side of the

arms

121 and 121 faces downward and the surface of the shutter body 122 faces in the front-rear direction. Up to an open position (the position of the shutter 120 indicated by a two-dot chain line in FIG. 2) in which the other end side of the

arms

121, 121 faces in the forward direction (left side when viewed from the front of FIG. 2) and the surface of the shutter body 122 faces in the vertical direction. It is.

The shutter 120 is changed to the closed position that prevents an operator from picking a part when the surface of the shutter main body 122 is directed in the front-rear direction. In this way, the shutter 120 indicates that the corresponding part is not the target of picking. The shutter 120 regulates the picking. The shutter 120 avoids the open position where the surface of the shutter main body 122 is directed in the vertical direction and does not hinder the operator from picking parts. In this way, the shutter 120 instructs that the corresponding component is a picking target. The shutter 120 allows the picking.

The lever switch 200 will be described with reference to FIGS. 3 to 5 are sectional views of the lever switch 200. FIG. FIG. 3 shows a state where the lever switch 200 is in the standby position. FIG. 4 shows a state in which the lever switch 200 is tilted. FIG. 5 shows a state in which the lever switch 200 is pulled.

The lever switch 200 includes a lever body 210, a non-contact type switching element 250 that can be switched between an on state and an off state by an operation of the lever body 210, and a part of the lever body 210 sandwiching the lever body 210. Support means 260 for supporting the lever main body 210 at the standby position, and supporting the lever main body 210 to allow the operation of the lever main body 210 for switching the switching element 250 to the on state or the off state. 260. Here, the “standby position” is a position where the operation of the lever main body 210 is not applied to the support means 260 that supports the lever main body 210 with a part of the lever main body 210 interposed therebetween.

The lever main body 210 is a rod-like member having a length in one direction. The lever main body 210 is configured by connecting three members. The lever main body 210 includes a first lever member 220 provided on one end side, a second lever member 230 provided on an intermediate portion, and a third lever member 240 provided on the other end side. The one end side of the lever main body 210 is a fixed end side supported by the support means 260. The other end side of the lever main body 210 is a free end side.

The first lever member 220 includes a cylindrical shaft portion 221, a mounting groove 222 in which the switching element 250 can be mounted, a disc portion 223 that protrudes like a bowl over the entire circumference on the tip side of the shaft portion 221, The truncated cone-shaped guide part 224 provided from the front end side of the shaft part 221 provided with the disk part 223 toward the front end, and the other end side of the shaft part 221 can be fitted into the end part of the second lever member 230. A fitting section 225.

The shaft portion 221 includes a mounting groove 222 at one end. Moreover, the shaft part 221 includes a fitting part 225 at the other end. The shaft portion 221 has a smaller diameter than the outer peripheral diameter of the disc portion 223.

The mounting groove 222 is provided at the tip of the shaft portion 221. More preferably, the mounting groove 222 is provided in the central portion of the shaft portion 221.

Since the disc part 223 has a predetermined thickness, it has a structure that does not easily deform with respect to a load from the center direction. At least the surface on the tip side of the shaft portion 221 of the disc portion 223 is flat. In the present embodiment, both surfaces of the shaft portion 221 of the disc portion 223 are flat.

The bottom surface (surface having a wide diameter) of the guide portion 224 is formed to be on the disc portion 223 side. An upper surface (a surface having a narrow diameter) of the guide portion 224 is formed so as to be on one end side of the first lever member 220. The center of the guide part 224 is arranged so as to coincide with or substantially coincide with the center of the disc part 223. A mounting groove 222 is provided at the center of the upper surface of the guide portion 224.

The fitting portion 225 includes a truncated cone-shaped top portion 225 a and a fitting groove portion 225 b that extends over the entire circumference of the shaft portion 221. The diameter of the top portion 225a is equal to or smaller than the inner diameter of the cylindrical second lever member 230. The fitting part 225 is configured such that the fitting groove part 225 b can be fitted into the opening parts at both ends which are reduced in diameter from the inner diameter of the second lever member 230. The fitting portion 225 has the top portion 225 a hooked on the opening of the second lever member 230. Therefore, the fitting portion 225 is configured to be prevented from being detached from the second lever member 230.

The second lever member 230 has a buffer portion 231 that absorbs and absorbs a load acting when the third lever member 240 is operated, and a fitting that can fit the end portion of the first lever member 220 or the third lever member 240. The

inlets

232 and 232 are provided. The second lever member 230 is made of an elastically deformable material. The second lever member 230 is made of, for example, rubber. Therefore, the second lever member 230 can reduce the transmission of stress acting on the second lever member 230 itself or the third lever member 240 to the first lever member 220 when the lever main body 210 operates.

The buffer portion 231 is formed in a cylindrical shape. The

fitting ports

232 and 232 have a smaller diameter than the inner diameter of the buffer portion 231. Therefore, when the

fitting ports

232 and 232 are fitted into the fitting portions 225 of the first lever member 220, the inner peripheral surfaces of the

fitting ports

232 and 232 are fitted into the fitting grooves 225b. The top portion 225a is hooked inside the buffer portion 231. Therefore, the top portion 225a is prevented from coming off by the buffer portion 231.

The third lever member 240 is provided on one end side of the rod-like operation portion 241 that is a portion operated by the operator and the operation portion 241, and is fitted in the insertion opening 232 of the second lever member 230. Fitting part 242 to be provided.

The operation unit 241 is pushed by the operator from the side perpendicular to the axis and rotated about the tip side of the first lever member 220 as a fulcrum (tilting operation), or grips the operation unit 241 itself and moves in the axial direction. For moving toward the other end side (lower side in FIG. 3) (pulling operation). The length of the operation unit 241 in the longitudinal direction is appropriately determined according to the operation.

The operation unit 241 is provided with operation assisting means 243 so that the operator can operate from a remote location. The operation assisting means 243 according to this embodiment is provided with a through hole 243 (hereinafter referred to as the operation assisting means 243) provided on the other end side of the operation portion 241 (the free end side of the lever main body 210). Explain). One end of a long string is attached to the through hole 243. And the through-hole 243 is used in order to operate the operation part 241 remotely by pulling the other end part of a string. This is effective when the lever switch 200 cannot be directly operated or the operability is poor because, for example, the picking work terminal is installed at a high place with respect to the worker.

The fitting part 242 has the same configuration as the fitting part 225 of the first lever member 220. The fitting portion 242 can be fitted into the fitting port 232 of the second lever member 230 so as to be prevented from coming off.

The switching element 250 controls a magnet 251 provided at one end of the lever main body 210, a magnetic sensor 252 capable of detecting a change in magnetic field caused by displacing the position of the one end of the lever main body 210, and the magnetic sensor 252. And a control board 253.

The switching element 250 is configured to be switchable between an on state and an off state depending on the positional relationship between the magnet 251 and the magnetic sensor 252. The magnet 251 and the magnetic sensor 252 are in a positional relationship facing each other in a state where the lever main body 210 is located at the standby position. Specifically, the magnet 251 is mounted in the mounting groove 222. The magnetic sensor 252 is provided to detect the magnetic field of the magnet 251. The magnetic sensor 252 is, for example, a hall element. The control board 253 is connected to the magnetic sensor 252 and the terminal main body 300. The control board 253 is configured to output a signal generated when the magnetic sensor 252 detects the magnetic field of the magnet 251 to the terminal body 300.

The support means 260 includes a first support portion 270 that supports the lever body 210 so that the magnetic sensor 252 is positioned at a position facing the magnet 251 in a state where the lever body 210 is supported at the standby position, and the lever body 210. And a second support portion 280 that biases and supports the lever main body 210 toward the first support portion 270 so that the one end portion side is positioned so as to be in contact with the first support portion 270.

The first support portion 270 includes a substrate 271 to be attached to the terminal body 300 and a covering portion 272 that is connected to the substrate 271 and covers one end portion side of the first lever member 220.

The substrate 271 includes a magnetic sensor 252 and a control substrate 253. The substrate 271 includes a substrate body 273 to be attached to the terminal body 300 and a protrusion 274 that protrudes annularly from the substrate body 273. The protrusion part 274 is formed so that contact is possible over the perimeter of the disc part 223. FIG. The positional relationship in which the magnet 251 provided at the distal end portion of the first lever member 220 and the magnetic sensor 252 provided at the first support portion 270 face each other when the protruding portion 274 contacts the entire circumference of the disc portion 223. It comes to be. The annular projecting portion 274 can be brought into contact with the disc portion 223 in accordance with the operation of the lever main body 210. Therefore, the protrusion 274 can correspond to the movement of the lever main body 210 in the entire axial direction.

The projecting portion 274 has a circular cross-section in the circumferential direction. When the protrusion 274 contacts the entire circumference of the disk portion 223, the protrusion 274 makes a line contact in an annular shape. Even when the protruding portion 274 is brought into contact with the disc portion 223 from a separated state, the inclined surface of the guide portion 224 serves as a guide, and the positional relationship with the disc portion 223 is corrected. Therefore, the protrusion part 274 contacts over the entire circumference of the disk part 223. When the protruding portion 274 and the disc portion 223 are in contact with each other over the entire circumference, the position of the lever main body 210 is the “standby position”. In addition, when the protrusion 274 and the disk part 223 are in a position separated from the position where the protrusion 274 and the disk part 223 are in contact with each other by moving the disk part 223 parallel to the protrusion 274 in the axial direction. The position of the main body 210 is a “drawing position”.

The projecting portion 274 can be brought into contact with the disc portion 223 at a single point by inclining the disc portion 223 with respect to the projecting portion 274 from a state in which the projecting portion 274 is in contact with the entire circumference of the disc portion 223. At this time, the protruding portion 274 makes point contact with the disc portion 223. This contact point serves as a fulcrum when the first lever member 220 is rotated. The position of the lever body 210 when the contact point is turned as a fulcrum is the “tilting position”. In addition, the position where the projection part 274 contacts over the entire circumference of the disk part 223 can be adjusted to the same position by the effect of the guide part 224. In order to tilt the disc part 223 from this state, the fulcrum on the disc part 223 can be fixed at a predetermined position from the center of the axis. In particular, this fulcrum is provided on a tangent line that contacts the entire circumference of the disc portion 223.

The covering portion 272 is connected to the first support portion 270 and has a cylindrical covering portion main body 275 that can secure a space in which the first lever member 220 operates, and an end portion of the covering portion main body 275 connected to the substrate 271. And an opening end portion 276 provided on the opposite side.

The covering portion main body 275 has an inner peripheral diameter equal to or larger than the outer peripheral diameter of the disc portion 223. As shown in FIG. 4, the covering portion main body 275 is configured to cause the first lever member 220 to perform the tilting operation in a state where the protruding portion 274 and the disc portion 223 are in contact with each other at at least one point. During the tilting operation, the cover portion main body 275 can move the portion of the disc portion 223 that is separated from the projection portion 274 of the disc portion 223 from the projection portion 274 in a state that resists the urging force of the second support portion 280. It has a length in the cylindrical core direction. Further, as shown in FIG. 5, the cover body 275 can move the disk part 223 in parallel with the protrusion part 274 from the position where the protrusion part 274 and the disk part 223 are in contact with each other. And it has the length of the said cylinder core direction which can move, resisting the urging | biasing force by the 2nd support part 280.

The opening end portion 276 is an opening having a size larger than the range in which the shaft portion 221 of the first lever member 220 moves during the tilting operation. Furthermore, the open end 276 is bent at the end toward the inside in the cylindrical core direction. The inner side of the end portion includes an annular hooking portion 277 for hooking the other end side of the second support portion 280.

The second support part 280 is configured by an elastic body (hereinafter described with the same reference numerals as those of the second support part 280). The elastic body 280 according to the present embodiment is a conical push spring (taper push spring). The elastic body 280 is a spring having a diameter longer than the diameter of the shaft portion 221. The elastic body 280 is inserted into the shaft portion 221 and supports the disk portion 223 by abutting from the shaft portion 221 side toward the front end side in the axial direction. The elastic body 280 abuts the end portion having a short diameter on the disc portion 223. The elastic body 280 abuts the end portion having a long diameter on the latching portion 277 of the opening end portion 276.

As shown in FIGS. 1 and 2, the terminal main body 300 controls a casing 310 to which the indicating means 100 and the lever switch 200 are attached, a motor (not shown) for driving the

arms

121 and 121, and a picking work terminal. A control board (not shown), and a fixture 320 for fixing the casing 310 to the pipe P.

The casing 310 has a rectangular shape with a height substantially equal to the diameter of the pipe P. The casing 310 is attached to the pipe P so that the pipe P comes to the back side. The lamp 110 is disposed on the front side of the casing 310. The lever switch 200 is disposed on the bottom surface of the casing 310 so that the free end side of the lever main body 210 faces downward. A motor and a control board are housed inside the casing 310.

The motor rotates the

shafts

123 and 123 of the

arms

121 and 121 by a predetermined angle in order to move the shutter 120 to the open position or the closed position.

The control board includes a control circuit that controls the instruction unit 100 and the lever switch 200, a drive circuit that drives a motor by a signal from the control circuit, a power supply circuit that supplies power to the control board, a picking device main body, and a lever A switch 200 and an external connection terminal connected to an external power source.

The fixture 320 is provided on the back side of the casing 310. The fixture 320 is disposed on the front surface of the pipe P. Therefore, the fixing tool 320 can arrange | position the casing 310 so that the casing 310 may not interfere with an operation | work when an operator takes out components.

Next, the operation of the picking work terminal according to this embodiment will be described. First, when the picking work terminal receives a signal from the picking apparatus main body indicating that the corresponding part is a picking target, the lamp 110 is turned on and the

arms

121 and 121 are moved to the open position (two-dot chain line in FIG. 2). The shutter 120 is rotated to the position indicated by () to open the shutter 120. Then, the picking work terminal notifies the corresponding part and the position of the part. In this way, the picking work terminal prompts the worker to pick.

When the worker finishes picking the part, the operator confirms that the picking work is completed by operating the lever switch 200 of the picking work terminal corresponding to the part. The picking work terminal whose completion has been confirmed transmits a picking completion confirmation response to the picking apparatus body. The picking work terminals that have received the completion confirmation responses from all the picking work terminals move to the next picking work.

Next, the operation of the lever switch 200 when the operator operates the lever switch 200 of the picking work terminal will be described in detail. The lever switch 200 according to the present embodiment is switched by tilting the lever main body 210 of the lever switch 200 with respect to the support means 260 or by pulling with respect to the support means 260. Can do. Therefore, the operation of each lever switch 200 during the tilting operation and the pulling operation will be described.

First, the case where switching is performed by tilting the lever main body 210 of the lever switch 200 with respect to the support means 260 will be described with reference to FIGS. In this embodiment, as shown in FIGS. 1 and 2, an example in which the free end of the lever main body 210 of the lever switch 200 is arranged vertically downward with respect to the terminal main body 300 will be described. However, the same applies to an example in which the free end of the lever main body 210 of the lever switch 200 is positioned horizontally and horizontally with respect to the terminal main body 300, for example. That is, since the first lever member 220 of the lever main body 210 of the lever switch 200 is supported by the support means 260, the lever main body 210 is not maintained in a state of being tilted downward by its own weight. Yes.

Before the lever main body 210 of the lever switch 200 is operated (when the lever main body 210 is in the standby position), as shown in FIG. 3, the disc portion 223 of the first lever member 220 is biased by the elastic body 280. Thus, the first support portion 270 is pushed up to the protrusion 274 side. The disc part 223 is in contact with the protrusion part 274 over the entire circumference. The posture of the lever body 210 is in a state along the center direction of the annular protrusion 274. At this time, the magnet 251 provided at the tip of the first lever member 220 is located at a position facing the magnetic sensor 252 provided in the first support portion 270, and the switching element 250 is in the on state.

When the lever main body 210 of the lever switch 200 in the standby position is tilted, the disc portion 223 of the first lever member 220 is pushed up to the protruding portion 274 side by the urging force of the elastic body 280 as shown in FIG. . Then, the disk portion 223 contacts the projection 274 at one point, and rotates the projection 274 against the urging force of the elastic body 280 using the contact point as a fulcrum, so that the projection 274 other than the fulcrum Separated from the part. The posture of the lever body 210 is inclined from the center direction of the annular protrusion 274.

At this time, the magnet 251 provided at the distal end of the first lever member 220 also rotates about the contact point between the protrusion 274 and the disc portion 223, so that the magnet 251 is provided in the first support portion 270. The distance from the sensor 252 is located at a distance, and the switching element 250 switches to an off state.

When the lever main body 210 is released from the tilting operation, the disc portion 223 of the first lever member 220 is pushed up to the protruding portion 274 side by the urging force of the elastic body 280 with the contact point as a fulcrum. And the disc part 223 returns to the state which contacts the protrusion part 274 over a perimeter. The posture of the lever main body 210 also returns to the state of being directed toward the center of the annular protrusion 274. At this time, the magnet 251 provided at the tip of the first lever member 220 is located at a position facing the magnetic sensor 252 provided in the first support portion 270, and the switching element 250 switches to the on state. When the switching element 250 is switched to the on state, confirmation of completion of the picking operation is performed.

Next, a case where switching is performed by pulling the lever main body 210 of the lever switch 200 with respect to the support means 260 will be described with reference to FIGS. When the lever main body 210 of the lever switch 200 in the standby position is pulled, as shown in FIG. 5, the disk portion 223 of the first lever member 220 resists the urging force of the elastic body 280 and the first support portion. It is separated from the protrusion 274 of 270. Then, the disc portion 223 moves in parallel to the center direction of the annular protrusion 274. The posture of the lever main body 210 is pulled out from the support means 260 while facing the center direction of the annular projection 274. At this time, the magnet 251 provided at the tip of the first lever member 220 is in a position facing the magnetic sensor 252 provided in the first support portion 270. However, the magnet 251 is separated from the magnetic sensor 252, and the switching element 250 switches to the off state.

When the lever main body 210 is released from the pulling operation, the disc portion 223 of the first lever member 220 is pushed up to the protruding portion 274 side by the urging force of the elastic body 280. And the disc part 223 returns to the state which contacts the protrusion part 274 over a perimeter. Even when the tension direction of the lever main body 210 is shifted from the center of the protrusion 274, the disc portion 223 of the first lever member 220 is guided by the guide portion 224. Then, the state returns to the state in contact with the protrusion 274 over the entire circumference. The posture of the lever main body 210 also returns to the state of being directed toward the center of the annular protrusion 274. At this time, the magnet 251 provided at the tip of the first lever member 220 is located at a position facing the magnetic sensor 252 provided in the first support portion 270, and the switching element 250 switches to the on state. When the switching element 250 is switched to the on state, confirmation of completion of the picking operation is performed.

As described above, according to the picking work terminal according to the present embodiment, the switching element 250 is turned on when the lever body 210 is in the standby position. When the lever main body 210 is tilted or pulled from the standby position, the switching element 250 is switched to the OFF state in conjunction with the operation of the lever main body 210. In this manner, the lever switch 200 switches between the on state and the off state by the operation of the lever main body 210 supported by the support means 260 at the standby position with the disc portion 223 of the lever main body 210 being sandwiched. As described above, even when the picking work terminal is used for picking work in which the lever switch is operated every time picking is completed, the picking work terminal switches between the on state and the off state without contact. For this reason, the picking work terminal can be provided with durability that can be used for a long period of time.

The switching element 250 can be switched between the on state and the off state in a non-contact manner depending on the positional relationship between the magnet 251 provided at the one end of the lever body 210 and the magnetic sensor 252 provided at the first support portion 270. Configured.

That is, when the lever body 210 is tilted or pulled from the standby position, the switching element 250 displaces the position of the magnet 251 provided at the one end of the lever body 210, so that the magnetic sensor 252 A change in the distance is detected by the magnetic sensor 252 as a change in the magnetic field from the magnet 251. The switching element 250 is configured such that the on state and the off state are switched by the change of the magnetic field without bringing the magnet 251 and the magnetic sensor 252 into contact with each other.

Further, since the second support portion 280 supports the lever main body 210 while urging a part of the lever main body 210 toward the first support portion 270 side, the lever main body 210 performs the tilting operation or the pulling operation to switch to the off state. Is performed against the urging by the second support portion 280. When the lever main body 210 is released from the operation against the urging by the second support portion 280, the lever main body 210 is urged by the second support portion 280 so that the disc portion 223 of the lever main body 210 is in the standby position. Until the disk portion 223 comes into contact with the first support portion 280. When the magnet 251 provided in the lever main body 210 and the magnetic sensor 252 provided in the first support portion 280 are returned to the positional relationship, the switching element 250 returns to the state when the lever main body 210 is in the standby position. Therefore, the switching element 250 is configured to be switched to the off state in a non-contact manner, and the positional relationship between the on state and the off state is reliably switched.

Further, the lever main body 210 changes the positional relationship between the magnet 251 provided at a part of the lever main body 210 and the magnetic sensor 252 provided at the first support portion 270 while resisting the elastic force by the elastic body 280. be able to. For example, the positional relationship between the magnet 251 of the lever main body 210 and the magnetic sensor 252 of the first support portion 270 can also be changed by pulling the lever main body 210. Further, the positional relationship between the magnet 251 of the lever main body 210 and the magnetic sensor 252 of the first support portion 270 can also be changed by tilting the lever main body 210. Therefore, the picking work terminal can provide a degree of freedom in the operation of the lever body.

The picking work terminal according to the present invention is not limited to the above-described embodiment. It goes without saying that the picking work terminal according to the present invention can be variously modified without departing from the gist of the present invention.

In the picking work terminal according to the above-described embodiment, an example in which the support unit 260 supports the lever main body 210 with the disc portion 223 having a predetermined thickness interposed therebetween as shown in FIGS. 3 to 5 will be described. However, the present invention is not limited to this. For example, a part of the lever main body may be a flange-shaped disk part. Moreover, a part of lever body is not limited to what has a flat contact surface like this embodiment in which a disc part contacts a projection part. A part of the lever main body may have a concave depression in an annular shape, and may be configured to restrict the movement of the fulcrum in the radial direction. The disc portion of the lever main body may be at any position on the lever main body as long as it can be sandwiched by the support means. The disc portion is not limited to a midway portion in the axial direction of the first lever member. The disc part may be provided at the tip part in the axial direction.

In the picking work terminal according to the above-described embodiment, the example in which the switching element 250 includes the magnet 251 and the magnetic sensor (Hall element) 252 has been described, but the present invention is not limited to this. For example, the switching element includes an optical type including a light emitting unit that emits light (electromagnetic wave), a light receiving unit that receives light emitted from the light emitting unit, and a reflecting mirror that reflects light emitted from the light emitting unit. The non-contact switching element may be used. The light here is not limited to visible light. Light includes infrared rays and ultraviolet rays. This switching element can be applied to the present invention by providing a light emitting part and a light receiving part on the first support part 270 side and providing a reflecting mirror at the tip part of the first lever member 220.

In the picking work terminal according to the above-described embodiment, the example in which the second support part 280 is a conical spring is described, but the present invention is not limited to this. For example, the second support portion may be a push spring other than the conical push spring, or a columnar or truncated cone rubber having an opening at the center of the shaft.

In the picking work terminal according to the above-described embodiment, when the pulled first lever member 220 is returned to the standby position, the disc portion 223 of the first lever member 220 is the protrusion of the first support portion 270. The example in which the truncated cone-shaped guide portion 224 that guides the first lever member 220 is provided at the tip of the first lever member 220 so as to return to the position where it contacts with the entire circumference of the 274 has been described. Is not to be done. For example, the guide portion 224 may have a truncated cone-shaped inclined surface warped in the outer diameter direction or a shape warped in the inner diameter direction.

In the picking work terminal according to the above embodiment, an example has been described in which the lever body 210 is turned on when the lever body 210 is in the standby position and is turned off when the tilting operation or the pulling operation is performed. It is not limited. The picking work terminal may be configured to be in an off state when the lever main body 210 is in the standby position and to be in an on state when performing the tilting operation or the pulling operation.

In the picking work terminal according to the above embodiment, the example in which the operation assisting means is the through hole 243 has been described, but the present invention is not limited to this. For example, the operation assisting unit may be a hook that can hook a string or the like.

In the picking work terminal according to the above-described embodiment, the example in which the terminal is provided in the pipe rack and attached to the pipe P of the pipe rack using the fixture 320 has been described, but the present invention is not limited to this. For example, the picking work terminal can be applied to a parts shelf such as a steel rack.

∙ It can be used for the purpose of notifying an operator whether or not a corresponding part is a target of picking while being provided for each part.

DESCRIPTION OF SYMBOLS 100 ... Instruction means, 110 ... Lamp (notification means), 120 ... Shutter (picking restriction means), 121 ... Arm, 122 ... Shutter main body, 123 ... Shaft, 200 ... Lever switch, 210 ... Lever main body, 220 ... First lever 221 ... Shaft part, 222 ... Mounting groove, 223 ... Disk part, 224 ... Guide part, 225 ... Fitting part, 225a ... Top part, 225b ... Fitting groove part, 230 ... Second lever member, 231 ... Buffer part 232 ... Insertion port, 240 ... 3rd lever member, 241 ... Operation part, 242 ... Insertion part, 243 ... Through-hole (operation assistance means), 250 ... Switching element, 251 ... Magnet, 252 ... Magnetic sensor, 253 ... control board, 260 ... support means, 270 ... first support part, 271 ... substrate, 272 ... covering part, 273 ... substrate body, 274 ... projection part, 275 ... covering part book , 276 ... opening end, 277 ... hook portion, 280 ... second supporting portion (elastic member), 300 ... terminal main body, 310 ... casing, 320 ... fixtures, P ... (the parts shelves) Pipe

Claims

In a picking work terminal comprising: instruction means for instructing the timing of picking to an operator; and a lever switch used for confirming that the picking has been completed.
The lever switch supports the lever body, a non-contact type switching element capable of switching between an on state and an off state by the operation of the lever body, and a part of the lever body; Support means for supporting the lever body in a standby position, and supporting means for supporting the lever body to allow the operation of the lever body for switching the switching element to the on state or the off state. A picking work terminal characterized by comprising:
The switching element includes a magnet provided at one end of the lever body, and a magnetic sensor capable of detecting a change in a magnetic field caused by displacing the position of the one end of the lever body.
The support means includes a first support portion that supports the lever body so that the magnetic sensor is positioned at a position facing the magnet in a state where the lever body is supported at the standby position, and the lever body. A second support portion that biases and supports the lever main body toward the first support portion so that one end portion is positioned in a state where the one end portion can be brought into contact with the first support portion. The picking work terminal according to claim 1, wherein the lever main body is supported by the support portion and the second support portion with the part of the lever main body interposed therebetween.
The picking work terminal according to claim 2, wherein the second support part is formed of an elastic body.
The first support part includes a protruding part protruding in an annular shape,
4. The picking work terminal according to claim 2, wherein the part of the lever main body is a disk portion provided with a flange so as to be able to contact the entire circumference of the annular protrusion. 5.