JP4494037B2 - Product display shelf equipped with a product information reading device - Google Patents

Description

  The present invention relates to a merchandise display shelf including a reading device for reading information of an RFID tag in which article information is recorded.

  In recent years, in order to manage the storage state of articles stored in furniture, an RFID tag in which article information is recorded is attached to each article, information on the RFID tag is read by a reading device, and each article is based on the read information. Various devices have been developed that manage the storage state of the storage.

  As an example of this, the article information recorded on the RFID tag of the article stored in the fixture can be read by a reading device arranged on the shelf plate of the fixture, and the article can be managed based on the read article information. There is such a fixture (see Patent Document 1).

JP 7-182357 A (paragraphs 0011-0022, FIG. 1-3)

  However, in the case where the article information is read out on the side of the fixture as in Document 1, for example, when a part of the fixture is made of an electromagnetic shielding material (EMS material) such as metal, the magnetic antenna of the reading device is used. Since the magnetic field is generated from the electromagnetic shielding material in the opposite direction to the direction of the generated electromagnetic field, the electromagnetic wave from the reading device is affected by the electromagnetic shielding material. The generation of the electromagnetic wave including the article information recorded on the RFID tag becomes difficult.

  Therefore, the present invention has been made paying attention to such problems, and an electromagnetic wave including article information of an RFID tag attached to an article is received by a reading device without being affected by the electromagnetic shielding material. The purpose is to provide a product display shelf.

In order to solve the above-described problem, a product display shelf including the article information reading device according to claim 1 of the present invention is provided with one end portion of a bracket facing a pair of left and right front and rear directions on the front and rear of the left and right legs. Before and after the left and right shelves are separated from each other between the rear edges of the shelves. In the commodity display shelf provided with the back plate, a reading device for reading information of the RFID tag of the article to which the RFID tag on which the article information placed on the shelf is recorded is provided with each of the electromagnetic shielding materials. An electromagnetic shielding plate made of an electromagnetic shielding material, which is attached to each of the back plates so as to be separated from the upper surface of the shelf plate by a predetermined interval or more, and is further spaced apart from the reading devices by a predetermined interval or more between the both back plates. It is characterized by.
According to this feature, by separating the reading device from the electromagnetic shielding material by a predetermined distance or more, the RFID tag can receive electromagnetic waves from the reading device without being affected by the electromagnetic shielding material that is a shelf plate. The electromagnetic wave from the reading device can be received by the reading device without being affected by the electromagnetic shielding material, and an electromagnetic shielding plate that is separated from each reading device by a predetermined distance or more between the two back plates is provided. The information of the RFID tag of the article can be read out for each shelf board without the electromagnetic waves of the reading devices provided on the front and rear back plates interfering with each other.

A merchandise display shelf comprising the article information reading device according to claim 2 of the present invention is a merchandise display shelf comprising the article information reading device according to claim 1, wherein the shelf board is separated vertically. A plurality of sheets are provided, and the reading device is attached to the back plate so that the reading device is spaced from the lower surface of the shelf plate located above and the upper surface of the shelf plate located below by a predetermined distance or more. It is characterized by that.
According to this feature, since each shelf is made of an electromagnetic shielding material, the electromagnetic waves between the reading devices installed above and below are blocked by the shelf, preventing interference between the electromagnetic waves, and each reading Since the device is attached to the back plate at a predetermined distance from each shelf plate, which is an electromagnetic shielding material positioned above and below, reception of electromagnetic waves between the reading device and the RFID tag is not affected by the electromagnetic shielding material. The information of the RFID tag of the article can be read for each shelf board.

A merchandise display shelf comprising the article information reading device according to claim 3 of the present invention is a merchandise display shelf comprising the article information reading device according to claim 1 or 2, wherein the reading device is connected to the back. It is provided on the back side of the face plate.
According to this feature, by providing the reading device on the back side of the back plate, the reading device is improved in appearance without being exposed on the front surface of the display shelf, and is protected by the back plate, thereby being affected by an external impact. It is possible to prevent problems such as repairs due to failure or deterioration, and it can be used for a long time.

A merchandise display shelf comprising the article information reading device according to claim 4 of the present invention is a merchandise display shelf comprising the article information reading device according to any one of claims 1 to 3, wherein The reading device is made of an electromagnetic shielding material, and is provided so as to be separated from the inner surfaces of both pedestals by a predetermined distance or more.
According to this feature, when the reading device is separated from the pedestal, which is an electromagnetic shielding material, by a predetermined distance or more, reception of electromagnetic waves between the reading device and the RFID tag can be prevented from being affected by the electromagnetic shielding material.

A merchandise display shelf comprising the article information reading device according to claim 5 of the present invention is a merchandise display shelf comprising the article information reading device according to any one of claims 1 to 4, wherein the shelf board includes: A side plate made of an electromagnetic shielding material is provided at the side end.
According to this feature, the side plate made of an electromagnetic shielding material can block electromagnetic waves from the reading device at both ends of the shelf plate, and the reading range of the RFID tag article information by the reading device can be limited. Therefore, for example, it is possible to prevent the interference of the electromagnetic waves with each other and the erroneous reception of the electromagnetic waves with the reading device installed on the commodity display shelf arranged next to it.

A merchandise display shelf comprising the article information reading device according to claim 6 of the present invention is a merchandise display shelf comprising the article information reading device according to any one of claims 1 to 5, wherein the merchandise display shelf includes: A magnetic material is provided between the electromagnetic shielding plate and the electromagnetic shielding plate.
According to this feature, the electromagnetic wave between the reading device and the RFID tag is not affected by the electromagnetic shielding material due to the insertion of the magnetic material, and the reading of the article information of the RFID tag can be performed accurately. In addition, since the interval between the electromagnetic shielding material and the reading device is an interval narrower than the predetermined interval separation width, a sufficient space for placing the articles on the shelf board is secured, and the installation area of the product display shelf is reduced. It becomes possible to save space.

  Examples of the present invention will be described below.

  1 is a perspective view of a merchandise display shelf provided with an article information reading device according to a first embodiment of the present invention, and FIG. 2 is a partially broken longitudinal sectional view taken along line AA of FIG. 3 is a cross-sectional plan view taken along line BB in FIG. This product display shelf (hereinafter referred to as “product display shelf 1”) is installed in a product sales area such as a supermarket or a convenience store. (Hereinafter, the article 19) can be taken out.

  Embodiment 1 of the present invention will be described with reference to the drawings. As shown in FIG. 1, the commodity display shelf 1 is provided with a shelf plate made of electromagnetic shielding material (in this embodiment, metal steel material) on the floor surface. A mounting table 5 is provided, and a pair of leg posts 2 made of an electromagnetic shielding material extending in the vertical direction from the floor surface are provided at a rear side of the mounting table 5 with a predetermined distance therebetween on the left and right. Also, the mounting table 5 is provided symmetrically on the back side of the pedestal 2.

  A horizontal member 8 is sandwiched between the upper ends of both leg posts 2, and the left and right leg posts 2, the mounting table 5, and the horizontal member 8 constitute a frame. A back plate 6 made of a non-electromagnetic shielding material (hard plastic material in the present embodiment) and a back plate (not shown), which will be described later, also made of a non-electromagnetic shielding material, are provided between the pillars 2 of the frame. It is fitted in the front and back.

  A plurality of engagement holes 2 a are formed in the pedestal 2 in the vertical direction, and similarly, a plurality of engagement holes (not shown) are formed in the vertical direction on the back side of the pedestal 2. Below the pedestal 2, a wiring hole 2 b for wiring a LAN cable 21 described later to the outside is formed. A plurality of shelves 3 made of electromagnetic shielding materials are provided in a vertical direction at a predetermined height position of the back plate 6. Similarly, a plurality of shelves 3 are also provided on a back plate (not shown) located on the back side of the back plate 6.

  These shelf boards 3 are placed and locked on the upper ends of a plurality of brackets 4 attached in advance to the engagement holes 2 a of the pedestal and the engagement holes on the back side of the pedestal 2. Hereinafter, in the present embodiment, the front side of the product display shelf 1 is assumed to be the front, and the back side of the product display shelf 1 is assumed to be the rear. In addition, the above-described inside of the frame constituted by the left and right pedestals 2, the mounting table 5, and the horizontal member 8 will be described as the back side, and the outside of the frame will be described as the front side.

  A plurality of articles 19 to which RFID (Radio Frequency IDentification, wireless identification) tags, which will be described later, are attached, are placed on the top surface of the shelf board 3. A plurality of front RFID antennas 9 serving as readout devices, which will be described in detail later, are provided on the back surface of the back plate 6 so as to correspond to the respective shelf plates 3. Similarly, a plurality of rear RFID antennas (not shown) are provided on the back of a back plate (not shown) located behind the back plate 6. Inside the front and rear mounting tables 5, a relay device 16 having functions such as a concentrator and a tuner, a front RFID antenna 9, a rear RFID antenna (not shown), and a power source for supplying power to the relay device 16. An adapter 17 is provided.

  A communication cable 18 including a signal cable (not shown) for transmitting and receiving various signals and a power supply cable (not shown) for supplying power is connected to each front RFID antenna 9 and rear RFID antenna (not shown). The signal cable is connected to the concentrator in the relay device 16, and the power supply cable is connected to the power adapter 17 and arranged in the commodity display shelf 1.

  The relay device 16 is connected via a LAN cable 21 to a management computer 20 that is connected to the LAN network and manages and operates the article management system. In the relay device 16, various types of data can be transmitted and received between the management computer 20, the front RFID antenna 9 and the rear RFID antenna (not shown) by a tuner having a data conversion function.

  That is, by transmitting the item information data of the RFID tag of the item 19 to the management computer 20, the management computer 3 can centrally manage the item information of the item 19 placed on each of the plurality of shelves 3. It is like that.

  The front RFID antenna 9 and the rear RFID antenna (not shown) of the present embodiment and the RFID tag on which the article information is recorded use a coil type antenna (not shown), respectively. Communication is performed by an electromagnetic induction method using magnetic flux generated by induction between a rear RFID antenna (not shown) and a coil of an RFID tag.

  The readout frequency of the front RFID antenna 9 and the rear RFID antenna (not shown) of this embodiment uses the frequency of the electromagnetic induction short wave band (13.56 MHz). It is not limited to the frequency, for example, there is the one using the electromagnetic induction type long wave band (up to 135 kHz), the radio wave type microwave band using the microwave band (2.45 GHz), etc. Depending on the shape, characteristics, and communication distance of products placed on product display shelves and shelves, the optimal method and frequency RFID antenna and RFID tag suitable for a more ideal environment should be used as appropriate. It ’s fine.

  Next, the internal structure of the commodity display shelf 1 will be specifically described. As shown in FIG. 2, a plurality of downward-facing hook-like engagement pieces 4 a are formed at the rear side end of the bracket 4, and are engaged and fixed to the engagement holes 2 a and attached to the pedestal 2. A plurality of locking grooves 4 b are formed at the upper end of the bracket 4, and locking pieces 3 a are formed downward on the bottom surface of the shelf board 3 so as to be opposed thereto, and the shelf board 3 is placed on the bracket 4. The locking piece 3a is locked in the locking groove 4b and the position is fixed. Similarly, the brackets 4 are provided in multiple stages, and the shelf boards 3 are respectively placed on the brackets 4.

  A plurality of front RFID antennas 9 are provided on the back surface of the back plate 6 made of a hard plastic material at a predetermined distance (L1) or more from the upper and lower shelf plates 3 (5 in this embodiment). Similarly, a plurality of front RFID antennas 9 are vertically provided on the back surface of the back plate 7 which is separated from the upper and lower shelf plates 3 by a predetermined distance (L1) or more (5 in this embodiment). An electromagnetic shielding plate 22 made of an electromagnetic shielding material is fitted and attached at a position spaced apart from the rear surfaces of the front RFID antenna 9 and the rear RFID antenna 10 by a predetermined distance (L2). It has been. The electromagnetic shielding plate 22 is provided to prevent mutual interference of electromagnetic waves generated from the front RFID antenna 9 and the rear RFID antenna 10.

  The communication cables 18 connected to the front RFID antennas 9 and the rear RFID antennas 10 are bundled together and wired downward, and are relayed via cable holes 5 a formed on the rear side of the shelf of the mounting table 5. 16 and the power adapter 17, a LAN cable 21 is wired from the relay device 16, and is arranged outside via a wiring hole 2 b formed in the pedestal 2. Thus, since the communication cable 18 is disposed between the back plate 6 and the back plate 7, the wiring of the communication cable 18 can be concealed from the outside.

  The attachment positions of the front RFID antenna 9 and the rear RFID antenna 10 provided on the rear surfaces of the rear plate 6 and the rear plate 7 so as to correspond to the respective shelf plates 3 are upward from the upper surface of the shelf plate 3 and the lower surface of the shelf plate 3. Are attached at positions spaced apart from each other by a predetermined distance (L1) or more so that the article information of the RFID tag 11 of the article 19 placed on the shelf board 3 can be read.

  Regarding the distance (L1) between the RFID antennas 9 and 10 and the shelf 3 that is an electromagnetic shielding material, the RFID tag receives the electromagnetic wave from the RFID antenna without being affected by the shelf 3, and the electromagnetic wave from the RFID tag is received. It has been experimentally verified that at least the distance between the RFID antenna and the shelf board 3 is preferably 40 mm or more so that the RFID antenna can receive signals without being affected by the shelf board 3. Similarly, the attachment position of the RFID tag provided on the article is preferably separated from the shelf board 3 by 40 mm or more. Therefore, in this embodiment, as shown in FIG. 2, the distance (L1) between the front RFID antenna 9 and the rear RFID antenna 10 applied to the commodity display shelf 1 and the shelf board 3 is 50 mm.

  In this way, by attaching the plurality of front RFID antennas 9 and the rear RFID antennas 10 to the back surfaces of the back plate 6 and the back plate 7 of the product display shelf 1 at a predetermined distance (L1) in the vertical direction, the front surface which is a reading device. The reception of the electromagnetic waves of the RFID antenna 9 and the rear RFID antenna 10 and the RFID tag 11 is not affected by each shelf 3, and the information of the RFID tag of the article can be surely read for each shelf. Moreover, since each shelf board 3 is comprised with the electromagnetic shielding material, the information of the RFID tag 11 of goods is each received, without the electromagnetic waves of front RFID antenna 9 and rear RFID antenna 10 located up and down interfering with each other. Reading can be surely performed for each shelf 3.

  Regarding the distance (L2) between the front RFID antenna 9 and the rear RFID antenna 10 and the electromagnetic shielding plate 22 that is an electromagnetic shielding material, the RFID tag receives the electromagnetic wave from the RFID antenna without being affected by the electromagnetic shielding plate 22, It has been experimentally verified that at least the distance between the RFID antenna and the electromagnetic shielding plate 22 is preferably 40 mm or more so that the RFID antenna can receive electromagnetic waves from the RFID tag without being affected by the electromagnetic shielding plate 22. ing. Therefore, in this embodiment, as shown in FIG. 2, the distance (L2) between the front RFID antenna 9 and the rear RFID antenna 10 applied to the merchandise display shelf 1 and the electromagnetic shielding plate 22 is 50 mm.

  In this manner, the product display shelf is provided by providing the electromagnetic shielding plate 22 corresponding to the electromagnetic shielding material that is separated from the front RFID antenna 9 and the rear RFID antenna 10 by a predetermined distance (L2) or more between the rear plates 6 and 7. The information of the RFID tag 11 of the article is surely read out for each shelf 3 without the electromagnetic waves of the front RFID antenna 9 and the rear RFID antenna 10 provided on the front and rear back plates 6 and 7 of 1 being interfered with each other. be able to.

  Further, the front RFID antenna 9 and the rear RFID antenna 10 are provided on the rear surfaces of the rear plate 6 and the rear plate 7, so that the front RFID antenna 9 and the rear RFID antenna 10 are not exposed to the outside, and the rear plate 6 and the rear plate. 7 has a protective function for the front RFID antenna 9 and the rear RFID antenna 10 as the antenna protective coating, and thus, for example, a problem such as a repair due to a failure or deterioration due to an external impact such as placement or removal of the article 19 occurs. Can be prevented and can be used over a long period of time.

  As shown in FIG. 3, the front RFID antenna 9 and the rear RFID antenna 10 are arranged at predetermined intervals (L3) inward from the left and right limbal pillars 2 depending on predetermined attachment positions of the rear plate 6 and the rear plate 7 to the rear surface. ) Separated and attached. A plurality of articles 19 are placed on the shelf board 3 in front of the back board 6 and the shelf board 3 in the back of the back board 7, and the RFID tags 11 are attached to the front side and the back side of these articles 19, respectively. ing. The RFID tag 11 is provided so as to be parallel to the front RFID antenna 9 and the rear RFID antenna 10.

  With respect to the distance (L3) between the RFID antenna and the two pedestals 2 that are electromagnetic shielding materials, the RFID tag receives the electromagnetic waves from the RFID antenna without being affected by the two pedestals 2, and the electromagnetic waves from the RFID tag are received by the two pedestals 2 It has been experimentally verified that at least the distance between the RFID antenna and the two pedestals 2 is preferably 40 mm or more so that the RFID antenna can receive the signal without being affected by the above. Therefore, in this embodiment, as shown in FIG. 3, the distance (L3) between the front RFID antenna 9 and the rear RFID antenna 10 and both pedestals 2 is set to 50 mm.

  As described above, even when both the pedestals 2 are made of an electromagnetic shielding material, if the front RFID antenna 9 and the rear RFID antenna 10 are separated from the pedestal 2 by a predetermined distance (L3) or more, the front RFID antenna 9 and the reception of the mutual electromagnetic waves of the rear RFID antenna 10 and the RFID tag 11 are prevented from being affected by the electromagnetic shielding material.

  As described above, in the first embodiment, the front RFID antenna 9 and the rear RFID antenna 10 corresponding to the reading device are separated from the shelf plate 3 and the electromagnetic shielding plate 22 corresponding to the electromagnetic shielding material and the both leg posts 2 by a predetermined distance or more. Therefore, the electromagnetic wave from the front RFID antenna 9 and the rear RFID antenna 10 is received by the RFID tag 11 without being affected by the shelf board 3 and the both pedestals 2, and the electromagnetic wave from the RFID tag 11 is received by the shelf board 3 and the electromagnetic shielding. The front RFID antenna 9 and the rear RFID antenna 10 can receive the signals without being affected by the plate 22 and the both pillars 2.

  Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a perspective view of a commodity display shelf provided with the article information reading device according to the second embodiment. In the following second embodiment, the same structural parts as those of the first embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted.

  As shown in FIG. 4, a plurality of shelf boards 3 are provided in multiple stages in front of the left and right leg posts 2 of the commodity display shelf 1 ′, and similarly, the shelf boards 3 are provided in multiple stages behind the both leg posts 2. It has been. A front RFID antenna 9 and a rear RFID antenna (not shown) are provided on the back of a front back plate 6 and a rear back plate (not shown) so as to correspond to each shelf plate 3. A plurality of articles 19 to which RFID tags (not shown) are attached are placed.

  Side plates 14 are provided at the front and rear and right and left sides of the front and rear shelf plates 3 so as to form the side surfaces of the commodity display shelf 1 ′. These side plates 14 are made of an electromagnetic shielding material, and a plurality of engaging pieces 14a are formed in a downward-facing hook shape at predetermined intervals in the vertical direction of the rear side end of the side plate 14.

  The engagement piece 14a is formed to be engageable with an engagement hole 2a of the leg column 2 and an engagement hole (not shown) on the back side of the leg column 2, and the engagement piece 14a is forwarded to the engagement hole 2a. The side plate 14 can be easily fixed to the pedestal 2 by engaging the engagement piece 14a from the rear to the front or from the rear to the front through the engagement hole (not shown). The electromagnetic waves of the front RFID antenna 9 and the rear RFID antenna (not shown) can be prevented from leaking to the outside from both side ends of the shelf board 3.

  As described above, in the second embodiment, electromagnetic waves from the front RFID antenna 9 and the rear RFID antenna (not shown) corresponding to the reading device are blocked at both ends of the shelf 3 by the side plate 14 made of an electromagnetic shielding material. Since the reading range of the article information of the RFID tag (not shown) by the front RFID antenna 9 and the rear RFID antenna (not shown) can be limited, for example, mutual communication with other RFID antennas (reading devices) is possible. Interference of electromagnetic waves and erroneous reception of electromagnetic waves can be prevented in advance.

  Next, Embodiment 3 of the present invention will be described with reference to FIG. FIG. 5 is a cross-sectional plan view of a product display shelf provided with the article information reading device according to the third embodiment. In the following third embodiment, the same structural parts as those of the first embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted.

  In the commodity display shelf 1 of the first embodiment, the front RFID antenna 9 and the rear RFID antenna 10 are provided at predetermined positions on the back surface of the back plate 6 and the back plate 7 and are separated from the electromagnetic shielding plate 22 by a predetermined distance (L2). However, the thing of a present Example differs in the point which attached the magnetic body 12 to the front-and-back surface of the electromagnetic shielding board 22 (refer FIG. 3).

  The magnetic body 12 used in the present embodiment is made of a rubber resin and is formed into a sheet shape. In this way, even when the magnetic body 12 is attached to the front and rear surfaces of the electromagnetic shielding plate 22, the electromagnetic shielding plate 22 is used. Although it is preferable because the weight can be reduced so as not to apply the load as much as possible, it is needless to say that the present invention is not limited to this. For example, a magnetic material of a hard magnet body may be used, or other configurations. The magnetic material may be used.

  First, as shown in FIG. 5, the shelf board 3 stores a plurality of articles 19 to which the RFID tags 30 are attached. A front RFID antenna 9 is provided on the back surface of the back plate 6, and a rear RFID antenna 10 is provided on the back surface of the back plate 7. The magnetic body 12 is attached to and attached to the front and rear surfaces of the electromagnetic shielding plate 22. That is, the back plate 6, the magnetic body 12, the electromagnetic shielding plate 22, the magnetic body 12, and the back plate 7 are arranged in order from the front to the back, and are attached between the two pillars 2.

  The magnetic body 12 inserted between the rear plate 6 and the electromagnetic shielding plate 22 and between the rear plate 7 and the electromagnetic shielding plate 22 is emitted from the front RFID antenna 9 and the rear RFID antenna 10 by the electromagnetic shielding plate 22 which is an electromagnetic shielding material. It has the characteristic of preventing the influence on electromagnetic waves.

  Therefore, even when the front RFID antenna 9 and the rear RFID antenna 10 are disposed in the vicinity of the electromagnetic shielding plate 22, a magnetic material is provided between the electromagnetic shielding plate 22 and the front RFID antenna 9 and the rear RFID antenna 10. 12 is inserted, the electromagnetic waves that are transmitted and received between the front RFID antenna 9 and the rear RFID antenna 10 and the RFID tag 30 are not affected by the electromagnetic shielding plate 22 and are recorded in the RFID tag 30. There is no problem in reading electromagnetic waves including article information.

  As described above, in the third embodiment, since the magnetic body 12 is interposed between the electromagnetic shielding plate 22 corresponding to the electromagnetic shielding material and the front RFID antenna 9 and the rear RFID antenna 10 corresponding to the reading device, Electromagnetic waves from the front RFID antenna 9 and the rear RFID antenna 10 and the RFID tag 11 are not affected by the electromagnetic shielding plate 22, and the article information of the RFID tag 11 can be read accurately.

  In addition, since the distance between the electromagnetic shielding plate 22 and the front RFID antenna 9 and the rear RFID antenna 10 is a distance (L4) that is narrower than the distance (L2) of the first embodiment, the article of the shelf board 3 It is possible to secure a sufficient mounting space and to save the installation area of the commodity display shelf 1 ''.

  The first, second, and third embodiments of the present invention have been described with reference to the drawings. However, the specific configuration is not limited to these embodiments, and there are changes and additions that do not depart from the gist of the present invention. In the above embodiment, the RFID antenna 9 is provided on each of the back surfaces of the back plates 6 and 7, so that the RFID antenna 9 is protected by the back plates 6 and 7 without being exposed to the outside. However, the present invention is not limited to this. For example, the RFID antenna 9 may be provided so as to be exposed to the front side by providing an antenna protective film on the surface of the RFID antenna 9. The installation state of the RFID antenna 9 may be determined in accordance with the usage form of the merchandise display shelves 1, 1 ′, 1 ″.

  Moreover, in the said Example, although the RFID tag 11 is stuck and attached to the article | item 19, this invention is not limited to this, For example, the RFID tag 11 is embedded and attached in the article | item 19, or the article | item 19 is attached. The RFID tag may be inserted into the inside as it is, and an RFID tag may be appropriately attached by an attachment method utilizing the product characteristics of the article.

  In the above embodiment, the management computer 20 is provided outside (see FIG. 1), so that a plurality of other merchandise display shelves (not shown) can be managed centrally. However, the present invention is not limited to this. For example, the management computer 20 may be built in the mounting table 5 in which the relay device 16 is accommodated, or the articles may be managed for each merchandise display shelf. good.

It is a perspective view of a goods display shelf provided with the reading apparatus of the article information in Example 1 of the present invention. It is a partially broken longitudinal cross-sectional view which shows the AA line of FIG. It is a plane sectional view showing a BB line of FIG. It is a perspective view of a goods display shelf provided with the reading apparatus of the article information in Example 2 of the present invention. It is a plane sectional view of a goods display shelf provided with the reading device of article information in Example 3 of the present invention.

Explanation of symbols

1, 1 ', 1''product display shelf 2 pedestal (electromagnetic shielding material)
2a engagement hole 2b wiring hole 3 shelf board (electromagnetic shielding material)
3a Locking piece 4 Bracket 4a Engaging piece 4b Locking groove 5 Mounting base 5a Cable hole 6, 7 Back plate 8 Horizontal member 9 Front RFID antenna (reading device)
10 Rear RFID antenna (reading device)
11 RFID tag 12 Magnetic body 14 Side plate (electromagnetic shielding material)
14a Engagement piece 16 Relay device (with concentrator and data conversion tuner function)
17 Power adapter 18 Communication cable (including power supply cable and signal cable)
19 Article 20 Management computer 21 LAN cable 22 Electromagnetic shielding plate (electromagnetic shielding material)

Claims (6)

  Supports one end of a pair of left and right brackets on the front and rear of the left and right pedestal pillars, supports both sides of the shelf on the left and right on the bracket, and the rear ends of the front and rear shelves In a product display shelf that is provided with back and front back plates that are separated from each other and between the two pedestals between the shelf plates, RFID tags on which article information placed on the shelf plates is recorded are attached. A reading device for reading the information of the RFID tag of the article is attached to each of the back plates so as to be separated from the upper surface of each shelf plate made of electromagnetic shielding material by a predetermined distance or more, and each of the back plates is further provided between the back plates. A merchandise display shelf comprising an article information reading device, wherein an electromagnetic shielding plate made of an electromagnetic shielding material spaced apart from the reading device by a predetermined distance or more is provided.   A plurality of the shelf plates are separated from each other in the vertical direction, and the mounting position of the reading device is separated from the lower surface of the shelf plate located above and the upper surface of the shelf plate located below by a predetermined distance or more. A commodity display shelf comprising the article information reading device according to claim 1 attached to the back plate.   A merchandise display shelf comprising the article information readout apparatus according to claim 1, wherein the readout apparatus is provided on the back side of the back plate.   The article information reading device according to any one of claims 1 to 3, wherein both the leg posts are made of an electromagnetic shielding material, and the reading device is provided so as to be separated from an inner surface of both leg posts by a predetermined distance or more. Product display shelf provided.   A merchandise display shelf comprising the article information reading device according to any one of claims 1 to 4, wherein a side plate made of an electromagnetic shielding material is provided at a side end of the shelf board.   A merchandise display shelf comprising the article information reading device according to claim 1, wherein a magnetic material is provided between the reading device and the electromagnetic shielding plate.

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