JP6692199B2 - Guard fence - Google Patents

Description

  The present invention relates to a protective fence having a display function of displaying an image.

  Guard fences may be installed in front of automatic doors. The guard fence separates the person around the automatic door from the movable region of the door's tail that moves between the closed position where the aisle is closed and the open position where the aisle is opened. Contribute to improvement. Patent Document 1 discloses a protective fence to which a light emitting device is attached. The protective fence of patent document 1 makes the edge part of a protective fence light-emit using a light-emitting device. As a result, a passerby can perceive the operation of the automatic door.

JP, 2011-122322, A

  Since the technology of Patent Document 1 causes only the edge of the protective fence to emit light, the visual effect given to a passerby is very small. Passersby who are distracted by something may not notice the light emission.

  An object of the present invention is to provide a protective fence that can give a strong visual effect to a passerby in conjunction with the movement of a door.

A guard fence according to one aspect of the present invention separates a person around an automatic door from a movable region of a door tail that moves between a closed position where a passage is closed and an open position where the passage is opened. So that it is fixed near the automatic door. Fences, extended front display unit having a display surface for displaying an image in association with the movement of Kitobira, a light source for emitting light to the display unit, laterally along the upper edge of the display unit An upper girder section, a lower girder section laterally extending along the lower edge of the display section, a left support column standing on the floor along the left edge of the display section, and the display and right strut along the right edge of the part erected on the floor surface, a holding frame and a control circuit for controlling the light source in response to the direction signal representing the direction of movement of the door, Ru comprising a. The display portion is held by the upper girder portion, the lower girder portion, the left support column, and the right support column. The control circuit is built in at least one of the left column and the right column.

  According to this configuration, the display unit includes the display surface that occupies a predetermined area on the side of the pillar that is erected on the floor surface, so that the display unit can display an image using the large area. Therefore, passersby can receive a strong visual effect from the guard fence. Here, the image is a concept including two-dimensional information that can be visually detected such as a figure, a character, a symbol or a color, or an arbitrary combination thereof.

With respect to the above configuration, before Symbol display surface, a leakage portion for leaking at least a portion of the light to the outside, and an optical waveguide portion for guiding from the entrance portion to the leak portion may include a.

  According to this configuration, since the display surface includes the leaking section that leaks at least a part of the light that has entered the incident section from the light source to the outside, and the optical waveguide section that guides the light from the incident section to the leak section, The unit can display an image using a simple structure without requiring a large number of electric components for displaying the image.

With respect to the above construction, fences, may further comprise a receiver for receiving pre-Symbol Direction signal. The control circuit controls the light source such that the first image is displayed as the image on the display surface when the direction signal represents the movement of the door from the closed position to the open position. You may. When the direction signal represents the movement of the door from the open position to the closed position, the control is performed such that a second image different from the first image is displayed on the display surface as the image. A circuit may control the light source.

  According to this configuration, the image on the display surface is switched between the first image and the second image according to the moving direction of the door. Therefore, the guard fence can notify the passerby of the moving direction of the door by using the image displayed on the display surface. Therefore, a stronger visual effect can be given to a passerby according to the moving direction of the door.

  In the above configuration, the light source includes a first light emitting element row in which a plurality of first light emitting elements that emit the first light as the light to the incident portion are arranged, and a second light emitting element that is different in hue from the first light. A second light emitting element row in which a plurality of second light emitting elements that emit light as the light are arranged may be included. The control circuit may turn on the first light emitting element row when the direction signal represents the movement of the door from the closed position to the open position. The control circuit may turn on the second light emitting element row when the direction signal indicates the movement of the door from the open position to the closed position.

  According to this configuration, the control circuit switches the light emission target between the first light emitting element row and the second light emitting element row according to the moving direction of the door, so that the first image displayed on the display surface is displayed. And the second image will differ in hue. Therefore, a passerby can recognize the moving direction of the door from the difference in hue.

  With regard to the above configuration, the incident part may include a first incident part and a second incident part provided at a position facing the first incident part. The light source emits first light as the light to the first incident portion, a first light emitting element row in which a plurality of first light emitting elements are arranged, and emits second light as the light to the second incident portion. A second light emitting element row in which a plurality of second light emitting elements are arranged. The control circuit may turn on the first light emitting element row when the direction signal represents the movement of the door from the closed position to the open position. The control circuit may turn on the second light emitting element row when the direction signal indicates the movement of the door from the open position to the closed position.

  According to this configuration, the first light emitting element row emits the first light to the first incident section, and the second light emitting element row is provided at the second incident section provided at a position facing the first incident section. Since the second light is emitted to the first light emitting element row, the first light emitting element row can be arranged at a position different from the second light emitting element row. Therefore, the first light emitting element row can include a large number of light emitting elements as the plurality of first light emitting elements. That is, the arrangement density of the light emitting elements can be increased and the brightness can be increased. Similarly, the second light emitting element row can include a large number of light emitting elements as the plurality of second light emitting elements. Similarly to the above, the arrangement density of the light emitting elements can be increased and the brightness can be increased. Therefore, the display unit can display a bright image and give a strong visual effect to the passerby.

  With regard to the above configuration, the first image displayed on the display surface may be displayed closer to the first incident section than to the second incident section. The second image displayed on the display surface may be displayed closer to the second incident section than to the first incident section.

  According to this configuration, since the first image is closer to the first incident portion than the second incident portion, the protective fence can display the first image with high brightness. Since the second image is closer to the second incident part than the first incident part, the protective fence can display the second image with high brightness.

  With regard to the above configuration, the first image may be displayed at a position different from the second image in a second direction orthogonal to the first direction from the first incident portion to the second incident portion.

  According to this configuration, the first image is positionally different from the second image in the second direction orthogonal to the first direction from the first incident portion to the second incident portion. Only one light emits light, but the second light does not emit bright light. That is, the first image is less likely to be visually recognized by passers-by under the emission of the second light. Even if the second light is emitted instead of the first light due to some abnormality, it is difficult for the passerby to visually recognize the first image. Therefore, it is difficult for the passerby to visually recognize the first image at an inappropriate timing. .. Therefore, since the protective fence does not display the first image at an inappropriate timing, it is possible to prevent the passerby from being erroneously notified of the moving direction of the door.

  With regard to the above configuration, the display unit may include a first display plate having a first leak portion that forms the first image and a second display plate that has a second leak portion that forms the second image. Good. The first display panel may be adjacent to the second display panel. A boundary formed between the first display panel and the second display panel may prevent the first light propagating in the first display panel from internally propagating to the second display panel. ..

  According to this configuration, the boundary formed between the first display panel and the second display panel prevents the first light propagating in the first display panel from internally propagating to the second display panel. The second image is less likely to be formed by the first light. Therefore, since the protective fence does not unnecessarily display the second image, it is possible to prevent the passerby from being erroneously notified of the moving direction of the door. Here, formation means making an image visible to a passerby.

  With respect to the above configuration, the protective fence may include another display unit that presents information to passersby. The light source may include a third light emitting element array in which a plurality of third light emitting elements that emit the third light are arranged on a display plate of the other display unit. The display plate of the other display unit is formed such that at least a part of the third incident unit on which the third light enters and the third light propagating in the display plate of the other display unit leaks. The third leaked part may be included.

  According to this configuration, at least a part of the third light propagating in the third display plate leaks from the third leaking portion, so the protective fence uses the third light leaking from the third leaking portion, Various information can be provided to passers-by regardless of the movement of the door.

  With regard to the above configuration, the leakage portion of the other display portion may be formed at a position that does not overlap the first leakage portion and the second leakage portion.

  According to this configuration, the third leak portion is formed at a position that does not overlap the first leak portion and the second leak portion, so the first image and the second image are not displayed by the third light, It can be seen by passersby.

With respect to the above configuration, before SL on the girder may hold the first light emitting element array. The lower beam portion may hold the second light emitting element row.

  According to this configuration, the first light emitting element row and the second light emitting element row are held by the upper girder portion and the lower girder portion, so that the protective fence can have a robust structure.

  With regard to the above configuration, the guard fence may further include a speaker that emits sound. The control circuit may cause the speaker to generate the sound in response to the direction signal.

  According to the above configuration, the display control unit causes the speaker to generate a sound in response to the direction signal. Therefore, the protective fence can transmit the information to the passerby by using not only the image but also the sound. ..

  The above-mentioned guard fence can give a strong visual effect to the passerby in conjunction with the movement of the door.

It is a conceptual diagram of the protection fence of 1st Embodiment. It is a schematic diagram of a guard fence of a 2nd embodiment. It is a conceptual block diagram of the protection fence of 3rd Embodiment. It is a schematic diagram of a guard fence of a 4th embodiment. It is a schematic diagram of a guard fence of a 5th embodiment. It is a schematic development view of a protection fence of a 6th embodiment. It is a schematic front view of the protection fence of 7th Embodiment.

<First Embodiment>
If the guard fence installed in front of the automatic door displays an image in a large area in conjunction with the movement of the door of the automatic door, the guard fence will provide a strong visual effect to the pedestrians of the automatic door. Information about the movement can be given. In the first embodiment, the concept of an exemplary guard fence that displays an image in a large area in conjunction with the door of an automatic door will be described. An image is a concept including two-dimensional information that can be visually detected such as a figure, a character, a symbol, a color, or any combination thereof.

  FIG. 1 is a conceptual diagram of a protective fence 100 according to the first embodiment. The guard fence 100 is described with reference to FIG.

  FIG. 1 schematically shows a part of a door SDR of an automatic door (not shown). The door SDR moves between a closed position where a passage (not shown) is closed and an open position where the passage is opened. Door SDR includes Tojiri TRE. While the door SDR moves from the closed position to the open position, the door butt TRE becomes the leading edge of the door SDR.

  The protective fence 100 is fixed to the floor FLR in front of the movable area of the door butt TRE. The position of the protective fence 100 is determined so that a person around the door SDR does not enter the movable area of the door skirt TRE. Therefore, the guard fence 100 can separate the person around the automatic door from the movable area of the door butt TRE. As a result, a collision between a person around the automatic door and the door butt TRE is properly prevented.

  The protective fence 100 includes a display unit 200 and a holding frame 300. The display unit 200 displays an image in conjunction with the movement of the door SDR. The image may represent an image of a predetermined shape. Alternatively, the image may be a monochromatic planar image. The principles of this embodiment are not limited to the particular content represented by the image.

  Various known communication technologies and known image generation technologies can be applied to the image display linked with the movement of the door SDR. The principle of the present embodiment is not limited to a specific technique used for image display linked with the movement of the door SDR.

  The holding frame 300 holds the display unit 200. The holding frame 300 includes columns 311 and 312 fixedly erected from the floor surface FLR. The display unit 200 may be directly connected and supported by the columns 311 and 312. Alternatively, the display unit 200 may be supported via another member connected to the columns 311 and 312. The principle of this embodiment is not limited to a specific connection structure between the display unit 200 and the holding frame 300.

  The column 311 is arranged at a position apart from the column 312. The distance between the columns 311 and 312 may be determined so as to match the stroke of the door butt TRE.

  The display unit 200 includes a display surface 210 extending laterally between the columns 311 and 312. Since the display surface 210 occupies the area between the columns 311 and 312, the display unit 200 can display a large image. Therefore, the guard fence 100 can give a high visual effect to the passerby.

  The display unit 200 may be a plate material having an optical waveguide structure. In this case, the display unit 200 displays the image using the light leaked from the optical waveguide. The display unit 200 may be a liquid crystal display or an organic EL (Electroluminescence) display. In this case, the display unit 200 can display various images according to the image signal. The principle of this embodiment is not limited to a specific device used as the display unit 200.

<Second Embodiment>
The display unit may be a plate material that functions as an optical waveguide. In this case, unlike the image display device such as a liquid crystal display or an organic EL display, the display unit includes almost no electric parts, so that the protective fence can have a robust structure. In the second embodiment, an exemplary guard fence having a display portion formed using a plate material that functions as an optical waveguide will be described.

  FIG. 2 is a schematic view of a protective fence 100A of the second embodiment. The protective fence 100A will be described with reference to FIGS. 1 and 2. The terms indicating directions such as “top”, “bottom”, “left”, “right”, “front” and “rear” are for clarity of explanation only. These terms do not limit the principles of this embodiment in any way.

  Similar to the first embodiment, the protective fence 100A includes a holding frame 300 (see FIG. 1). The description of the first embodiment is incorporated in the holding frame 300.

  The protective fence 100A further includes a display unit 200A and a light source 400. The display unit 200A can be used as the display unit 200 described with reference to FIG. The description of the display unit 200 may be incorporated into the display unit 200A.

  The display unit 200A includes a front surface 221, a rear surface 222, and a peripheral surface 223. The rear surface 222 faces the door SDR (see FIG. 1) in the open position. The front surface 221 is located on the opposite side of the rear surface 222. The peripheral surface 223 forms a substantially rectangular contour between the front surface 221 and the rear surface 222.

  The peripheral surface 223 includes an upper edge surface 224, a lower edge surface 225, a left edge surface 226, and a right edge surface 227. The upper edge surface 224 faces the light source 400. The lower edge surface 225 is located on the opposite side of the upper edge surface 224. The left edge surface 226 extends substantially vertically between the left ends of the upper edge surface 224 and the lower edge surface 225. The right edge surface 227 extends substantially vertically between the right ends of the upper edge surface 224 and the lower edge surface 225.

  The light source 400 includes a plurality of light emitting elements 410. The plurality of light emitting elements 410 are arranged along the upper edge surface 224. Each of the plurality of light emitting elements 410 emits light to the upper edge surface 224. The plurality of light emitting elements 410 may be light emitting diodes or other optical components having a light emitting function. The principle of this embodiment is not limited to a specific optical component used as each of the plurality of light emitting elements 410.

  The light that has entered the upper edge surface 224 is then repeatedly reflected between the front surface 221 and the rear surface 222, and internally propagates toward the lower edge surface 225. Therefore, the front surface 221 and the rear surface 222 can function as an optical waveguide. The display unit 200A may be formed based on glass or acrylic. In this case, a surface that can function as an optical waveguide is easily created. In the present embodiment, the incident portion is exemplified by the upper edge surface 224.

  The front surface 221 includes a leakage portion 228. Part of the light guided downward by the front surface 221 and the rear surface 222 reaches the leakage portion 228. The leaking portion 228 repeatedly reflects between the front surface 221 and the rear surface 222, and leaks at least a part of the downward light to the outside. A passerby can visually recognize the light leaking from the leaking part 228 and receive various information from the protective fence 100A. The leaking part 228 may be formed by disperse | distributing the fine thin layer which consists of a material with a refractive index different from the material used as a clad layer so that at least one part of the light which propagates inside may be scattered. .. Alternatively, the leaked portion 228 may be formed by disperse | distributing the fine scratches and / or recessed parts formed in the cladding layer. Various techniques and findings relating to optical waveguides are available for forming the leak 228. Therefore, the principles of this embodiment are not limited to a particular technique for forming the leak 228. In the present embodiment, the optical waveguide section is exemplified by the front surface 221 and the rear surface 222.

  The leak 228 shown in FIG. 2 occupies a lower region of the front surface 221. However, the leak may occupy the upper area of the front surface 221 or the central area. If desired, leaks may be formed in the rear surface 222. The principle of this embodiment is not limited to a specific formation position of the leak portion.

  The leakage portion 228 shown in FIG. 2 occupies a part of the front surface 221. However, the leakage portion may be formed entirely on the front surface 221. The principle of this embodiment is not limited at all depending on the size of the leak portion.

  The leaking part 228 shown in FIG. 2 has a rectangular shape, and the shape itself of the leaking part 228 does not have a specific meaning. However, the leak portion may have a shape that represents specific information. If the leakage part has the shape of an arrow, the guard fence can utilize the light leakage from the leakage part to provide the passerby with information regarding the moving direction of the door SDR. The principle of the present embodiment is not limited to a particular shape of the leak portion.

  As described above, the shape itself of the leakage portion 228 shown in FIG. 2 does not have a specific meaning. In this case, the light source 400 may emit light only while the door SDR is moving. If there is light leakage from the leakage portion 228, the protective fence 100A can notify a passerby that the door SDR is moving.

  The light source 400 may emit light only while the door SDR is moving in a specific direction. For example, the light source 400 may emit light only while the door SDR is moving from the closed position to the open position. In this case, if there is light leakage from the leakage portion 228, the protection fence 100A can notify the passerby that the door SDR is moving from the closed position toward the open position.

  The light source 400 may change the hue of light according to the moving direction of the door SDR. For example, the light source 400 may emit blue light while the door SDR is moving from the closed position to the open position. On the other hand, the light source 400 may emit red light while the door SDR is moving from the open position to the closed position.

  As described above, various operation patterns can be designed for the light source 400. Therefore, the principles of this embodiment are not limited to a particular operation of the light source 400.

<Third Embodiment>
The guard fence may change the color of light emitted to notify passersby of the direction of movement of the door. In the third embodiment, an exemplary guard fence that changes the emission color according to the moving direction of the door will be described.

  FIG. 3 is a conceptual block diagram of the protective fence 100B of the third embodiment. The protective fence 100B will be described with reference to FIGS. 1 to 3. The terms indicating directions such as “top”, “bottom”, “left”, “right”, “front” and “rear” are for clarity of explanation only. These terms do not limit the principles of this embodiment in any way. The description of the second embodiment is applied to the elements denoted by the same reference numerals as the second embodiment.

  FIG. 3 shows a sliding door type automatic door AMD provided in a passage (not shown) of a building (not shown). The automatic door AMD comprises the door SDR described in relation to the first embodiment. The automatic door AMD further includes a motor MTR and an encoder ECD. The motor MTR generates a driving force for sliding the door SDR. The driving force is transmitted from the motor MTR to the door SDR. Techniques for various known transmission mechanisms can be used to transmit the driving force from the motor MTR to the door SDR. Therefore, the principle of the present embodiment is not limited to a specific mechanism for transmitting the driving force from the motor MTR to the door SDR.

  The door SDR moves between the open position and the closed position by the driving force generated by the motor MTR. The protective fence 100B displays a monochromatic plane image as an image in conjunction with the movement of the door SDR.

  The encoder ECD is built in the motor MTR. The encoder ECD outputs the rotation of the motor MTR as a pulse signal. The position of the door SDR is linked to the operation of the motor MTR. The position of the door SDR is calculated by integrating the pulse of the pulse signal generated by the encoder ECD from a preset specific position (for example, the fully closed position or the fully open position). The moving direction of the door SDR can be determined from the rotating direction of the motor MTR. The moving speed of the door SDR is calculated by integrating the number of pulses generated per unit time. The integration of the number of pulses is performed by an automatic door controller (not shown) that controls the rotation of the motor MTR. Therefore, the direction signal indicating the moving direction of the door SDR is output from the encoder ECD and / or the automatic door controller.

  In this embodiment, a rotary motor is used as the motor MTR. However, a linear motor may be used as the motor MTR. In this case, the encoder ECD outputs the position of the mover of the linear motor as a pulse signal. The encoder ECD may output the rotation speed using a tacho generator. In this case, the position of the door SDR is calculated by the integral calculation of the rotation speed. The encoder ECD may be separate from the motor MTR. The encoder ECD may be a magnetic type using a Hall element or the like, or may be an optical type using an LED or the like. As described above, the principle of this embodiment can be applied to various automatic doors.

  The direction signal may be transmitted to the guard fence 100B through a cable (not shown) that electrically connects the automatic door AMD to the guard fence 100B. Alternatively, the direction signal may be transmitted to the fence 100B as a wireless signal by a transmitting device (not shown).

  Instead of the encoder ECD, another sensor element that can detect the moving direction of the door SDR (for example, a limit switch, a proximity switch, or an optical sensor) may be used. For example, using the limit switches located in the closed and open positions of the door, the open position limit switch turns off during the opening operation until the closed position limit switch turns off and the open position limit switch turns on. It may be possible to recognize that the closing operation is in progress from when the limit switch is turned on until the limit switch is turned on. The principles of this embodiment are not limited to a particular device that produces a directional signal.

  Similar to the first embodiment, the protective fence 100B includes a holding frame 300 (see FIG. 1). The description of the first embodiment is incorporated in the holding frame 300.

  The protective fence 100B includes a display unit 200B, a light source 400B, a receiving unit 510, and a control circuit 520. The direction signal is transmitted from the encoder ECD to the receiving unit 510. If the direction signal is transmitted through the cable, the receiving unit 510 may be a connector element to which the cable is connected. If the direction signal is a wireless signal, the receiving unit 510 may be a receiver. The principle of this embodiment is not limited to a specific device used as the receiving unit 510.

  The control circuit 520 receives the direction signal through the receiver 510. The control circuit 520 controls the light source 400B according to the direction signal.

  The light source 400B includes a plurality of blue light emitting diodes 411 and a plurality of red light emitting diodes 412. The plurality of blue light emitting diodes 411 correspond to some of the plurality of light emitting elements 410 described with reference to FIG. The plurality of red light emitting diodes 412 correspond to the remaining part of the plurality of light emitting elements 410 described with reference to FIG. The description of the plurality of light emitting elements 410 may be applied to each of the plurality of blue light emitting diodes 411 and the plurality of red light emitting diodes 412.

  The display unit 200B can be used as the display unit 200 described with reference to FIG. Similar to the second embodiment, the display unit 200B includes a rear surface 222 and a peripheral surface 223. The description of the second embodiment is incorporated into these elements.

  The display unit 200B further includes a front surface 221B. The front surface 221B is located on the opposite side of the rear surface 222. A leakage portion 228B is entirely formed on the front surface 221B. The leakage portion 228B is formed based on the same forming technique as that of the leakage portion 228 described with reference to FIG. Therefore, the description regarding the leaking part 228 may be incorporated into the leaking part 228B.

  When the control circuit 520 causes the blue light emitting diodes 411 to emit blue light, the blue light leaks from the leaking portion 228B. As a result, the front surface 221B emits blue light as a whole. When the control circuit 520 causes the plurality of red light emitting diodes 412 to emit red light, the red light leaks from the leaking portion 228B. As a result, the front surface 221B emits red light as a whole.

  The plurality of blue light emitting diodes 411 are arranged along the upper edge surface 224 of the display unit 200B. In the present embodiment, the plurality of first light emitting elements are exemplified by the plurality of blue light emitting diodes 411. The first light emitting element row is exemplified by a row of a plurality of blue light emitting diodes 411.

  When the door SDR is displaced from the closed position to the open position, the control circuit 520 causes the plurality of blue light emitting diodes 411 to emit blue light to the upper edge surface 224 according to the direction signal. During this time, the plurality of red light emitting diodes 412 are turned off under the control of the control circuit 520. As described above, the front surface 221B emits blue light as a whole under the emission of blue light. As a result, a passerby can visually recognize the blue planar image that appears on the front surface 221B. In the present embodiment, the first image is exemplified by a blue plane image. The first light is exemplified by blue light.

  The plurality of red light emitting diodes 412 are arranged along the upper edge surface 224 of the display unit 200B. In the present embodiment, the plurality of second light emitting elements are exemplified by the plurality of red light emitting diodes 412. The second light emitting element row is exemplified by a row of a plurality of red light emitting diodes 412.

  When the door SDR is displaced from the open position to the closed position, the control circuit 520 emits red light from the plurality of red light emitting diodes 412 to the upper edge surface 224 according to the direction signal. During this time, the plurality of blue light emitting diodes 411 are extinguished under the control of the control circuit 520. As described above, the front surface 221B emits red light as a whole under the emission of red light. As a result, a passerby can visually recognize the red planar image that appears on the front surface 221B. In the present embodiment, the second image is exemplified by a red plane image. The second light is exemplified by red light.

  In the present embodiment, the blue light emitting diodes 411 and the red light emitting diodes 412 are alternately arranged along the upper edge surface 224. However, other array patterns that allow blue or red planar images to be displayed may be employed. The principle of this embodiment is not limited to a specific arrangement pattern of the blue light emitting diodes 411 and the red light emitting diodes 412.

  In the present embodiment, the protective fence 100B selectively displays blue and red plane images. However, the guard fence may use another hue to inform the passerby of the moving direction of the door SDR. Therefore, the principle of the present embodiment is not limited to the specific hue used to notify the moving direction of the door SDR.

<Fourth Embodiment>
In the third embodiment, the light from the light source is incident on the upper edge surface of the display unit. However, the light from the light source may be incident on the plurality of edge surfaces of the display unit. In this case, many light emitting elements can be used to display an image. Since the guard fence can display a bright image, it can give a strong visual effect to passersby. In the fourth embodiment, an exemplary guard fence including a display having a plurality of entrances is described.

  FIG. 4 is a schematic diagram of a protective fence 100C of the fourth embodiment. The protective fence 100C will be described with reference to FIGS. 1 and 4. The terms indicating directions such as “top”, “bottom”, “left”, “right”, “front” and “rear” are for clarity of explanation only. These terms do not limit the principles of this embodiment in any way. The description of the third embodiment is applied to the elements denoted by the same reference numerals as the third embodiment.

  Similar to the first embodiment, the protective fence 100C includes a holding frame 300 (see FIG. 1). The description of the first embodiment is incorporated in the holding frame 300. Similar to the third embodiment, the protective fence 100C further includes a receiving section 510 and a display section 200B. The description of the third embodiment is incorporated into these elements.

  The guard fence 100C includes a control circuit 520C, a blue LED row 420, and a red LED row 430. The control circuit 520C receives the direction signal through the receiver 510. The control circuit 520C refers to the direction signal to determine the moving direction of the door SDR (see FIG. 1). The control circuit 520C controls the blue LED row 420 and the red LED row 430 based on the determination result regarding the moving direction of the door SDR.

  The blue LED row 420 includes a plurality of blue light emitting diodes 421 arranged along the upper edge surface 224. The plurality of blue light emitting diodes 421 emit blue light toward the upper edge surface 224 of the display unit 200B. The red LED row 430 includes a plurality of red light emitting diodes 431 arranged along the lower edge surface 225. The plurality of red light emitting diodes 431 emit red light toward the lower edge surface 225 of the display unit 200B. In the present embodiment, the first light emitting element row is exemplified by the blue LED row 420. The second light emitting element row is exemplified by the red LED row 430. The plurality of first light emitting elements are exemplified by the plurality of blue light emitting diodes 421. The plurality of second light emitting elements are exemplified by the plurality of red light emitting diodes 431. The first light is exemplified by blue light. The second light is exemplified by red light. Each of the first light and the second light may have another hue. The first incident portion is exemplified by the upper edge surface 224. The second incident portion is exemplified by the lower edge surface 225.

  If the direction signal represents movement of the door SDR from the closed position to the open position, the control circuit 520C selectively lights the blue LED string 420. While the blue LED row 420 is on, the red LED row 430 is off. Similar to the third embodiment, the front surface 221B emits blue light as a whole while emitting blue light. As a result, a passerby can visually recognize the blue planar image that appears on the front surface 221B.

  If the direction signal represents the movement of the door SDR from the open position to the closed position, the control circuit 520C selectively lights the red LED row 430. While the red LED row 430 is on, the blue LED row 420 is off. Similar to the third embodiment, the front surface 221B emits red light as a whole while emitting red light. As a result, a passerby can visually recognize the red planar image that appears on the front surface 221B.

<Fifth Embodiment>
The breakthrough may have a particular shape configured to represent the operation of the door. In this case, various information can be received from the guard fence by looking at the image represented by the leaking part. In the fifth embodiment, an exemplary guard fence including a display unit for displaying an image is described.

  FIG. 5 is a schematic diagram of a protective fence 100D of the fifth embodiment. The protective fence 100D will be described with reference to FIGS. 1, 2 and 5. The terms indicating directions such as “top”, “bottom”, “left”, “right”, “front” and “rear” are for clarity of explanation only. These terms do not limit the principles of this embodiment in any way. The description of the fourth embodiment is applied to the elements denoted by the same reference numerals as the fourth embodiment.

  Similar to the first embodiment, the protective fence 100D includes a holding frame 300 (see FIG. 1). The description of the first embodiment is incorporated in the holding frame 300. Similar to the fourth embodiment, the protective fence 100D includes a receiver 510 and a control circuit 520C. The description of the fourth embodiment is incorporated into these elements.

  The protection fence 100D further includes a display unit 200D, a blue LED row 420D, and a red LED row 430D. The display unit 200D can be used as the display unit 200 described with reference to FIG. The blue LED row 420D and the red LED row 430D are turned on and off under the control of the control circuit 520C. Therefore, the description of the fourth embodiment is applied to the control for the blue LED row 420D and the red LED row 430D.

  The display unit 200D includes a left display plate 230 and a right display plate 240. The right display plate 240 is arranged to the right of the left display plate 230.

  The left display panel 230 includes a front surface 231, a rear surface 232, and a peripheral surface 233. The rear surface 232 faces the door SDR (see FIG. 1) in the open position. The front surface 231 is located on the opposite side of the rear surface 232. The peripheral surface 233 forms a substantially rectangular contour between the front surface 231 and the rear surface 232.

  The peripheral surface 233 includes an upper edge surface 234, a lower edge surface 235, a left edge surface 236, and a right edge surface 237. The upper edge surface 234 faces the blue LED row 420D. The lower edge surface 235 is located on the opposite side of the upper edge surface 234. The left edge surface 236 extends substantially vertically between the left ends of the upper edge surface 234 and the lower edge surface 235. The right edge surface 237 extends substantially vertically between the right ends of the upper edge surface 234 and the lower edge surface 235, and is in surface contact with the right display panel 240 as a whole.

  The right display plate 240 includes a front surface 241, a rear surface 242, and a peripheral surface 243. The front surface 241 of the right display plate 240 is substantially flush with the front surface 231 of the left display plate 230. The rear surface 242 of the right display plate 240 is substantially flush with the rear surface 232 of the left display plate 230. The peripheral surface 243 forms a substantially rectangular contour between the front surface 241 and the rear surface 242.

  The peripheral edge surface 243 includes an upper edge surface 244, a lower edge surface 245, a left edge surface 246, and a right edge surface 247. The lower edge surface 245 faces the red LED row 430D. The upper edge surface 244 is located on the opposite side of the lower edge surface 245. The right edge surface 247 extends substantially vertically between the right ends of the upper edge surface 244 and the lower edge surface 245. The left edge surface 246 extends substantially vertically between the left ends of the upper edge surface 244 and the lower edge surface 245, and is in surface contact with the right edge surface 237 of the left display panel 230 as a whole. The right edge surface 237 of the left display board 230 and the left edge surface 246 of the right display board 240 form a boundary between the left display board 230 and the right display board 240.

  The front surface 231 of the left display panel 230 includes a leakage portion 238 that draws a right arrow-shaped figure (image). When the blue light from the blue LED row 420D is incident on the upper edge surface 234 of the left display plate 230, the blue light is substantially totally reflected in the area excluding the leakage portion 238 and propagates internally toward the lower edge surface 235. .. Part of the blue light leaks at the leaking portion 238. The leakage portion 238 is formed based on the same forming technique as that of the leakage portion 228 described with reference to FIG. Therefore, the description regarding the leaking portion 228 may be incorporated into the leaking portion 238. In the present embodiment, the first leak portion is exemplified by the leak portion 238. The first image is exemplified by a right arrow-shaped figure (image) drawn by the leakage portion 238. The first display board is exemplified by the left display board 230.

  The front surface 241 of the right display plate 240 includes a leakage portion 248 that draws a left arrow-shaped figure (image). When the red light from the red LED row 430D is incident on the lower edge surface 245 of the right display plate 240, the red light is substantially totally reflected in the area excluding the leakage portion 248 and propagates internally toward the upper edge surface 244. .. Part of the red light leaks at the leaking portion 248. The leakage portion 248 is formed based on the same forming technique as that of the leakage portion 228 described with reference to FIG. 2. Therefore, the description regarding the leaking portion 228 may be incorporated into the leaking portion 248. In the present embodiment, the second leaking portion is exemplified by the leaking portion 248. The second image is exemplified by a left arrow-shaped figure (image) drawn by the leaking portion 248. The second display board is exemplified by the right display board 240.

  The right-pointing arrow represented by the leakage portion 238 indicates that the door SDR (see FIG. 1) is moving from the closed position to the open position. When the blue light from the blue LED row 420D is incident on the upper edge surface 234 of the left display plate 230, the leakage portion 238 emits blue light. As a result, a passerby can visually confirm the arrow that emits blue light, and can confirm that the door SDR is moving from the closed position to the open position.

  The left-pointing arrow represented by the leaking portion 248 indicates that the door SDR is moving from the open position to the closed position. When the red light from the red LED row 430D enters the lower edge surface 245 of the right display plate 240, the leakage portion 248 emits red light. As a result, a passerby can visually recognize the arrow that emits red light and can confirm that the door SDR is moving from the open position to the closed position.

  The upper edge surface 234 of the left display plate 230 is substantially flush with the upper edge surface 244 of the right display plate 240. The lower edge surface 235 of the left display plate 230 is substantially flush with the lower edge surface 245 of the right display plate 240. The leakage portion 238 is formed closer to the upper edge surface 234 than the lower edge surface 235. Therefore, the blue light incident on the upper edge surface 234 can cause the leakage portion 238 to emit light with high intensity. The leakage portion 248 is formed closer to the lower edge surface 245 than the upper edge surface 244. Therefore, the red light incident on the lower edge surface 245 can cause the leakage portion 248 to emit light with high intensity.

  The blue LED row 420D includes a plurality of blue light emitting diodes 421D. The blue light emitting diode 421D faces the upper edge surface 234 of the left display plate 230, but does not face the upper edge surface 244 of the right display plate 240. Therefore, the blue light is exclusively incident on the upper edge surface 234 of the left display plate 230.

  The red LED row 430D includes a plurality of red light emitting diodes 431D. The red light emitting diode 431D faces the lower edge surface 245 of the right display plate 240, but does not face the upper edge surface 234 of the left display plate 230. Therefore, the red light is exclusively incident on the lower edge surface 245 of the right display plate 240.

  As mentioned above, the leaks 238, 248 differ in the vertical position. In addition, the leaks 238 and 248 are different in the horizontal position. Therefore, the leaking part 238 is exclusively emitted by the blue light. The leaking portion 248 is exclusively emitted by the red light. In the present embodiment, the first direction is exemplified by the vertical direction. The second direction is exemplified by the horizontal direction.

  The blue light diffusely propagating from the left display plate 230 toward the right display plate 240 is internally reflected at the boundary formed by the right edge surface 237 of the left display plate 230 and the left edge surface 246 of the right display plate 240. Therefore, the leaking portion 248 is less likely to emit light with blue light. The red light diffusely propagating from the right display plate 240 toward the left display plate 230 is internally reflected at the boundary formed by the right edge surface 237 of the left display plate 230 and the left edge surface 246 of the right display plate 240. Therefore, the leaking portion 238 is unlikely to emit light by red light.

<Sixth Embodiment>
Designers may use additional displays (display boards and light sources) to increase the type of information the fence transmits. In this case, the guard fence can display not only operation information regarding the operation of the automatic door, but also a corporate advertisement, information on the building in which the guard fence is installed, information on the tenant in the building, and the like. In the sixth embodiment, an exemplary guard fence including additional displays (display board and light source) is described.

  FIG. 6 is a schematic development view of the protective fence 100E of the sixth embodiment. The protective fence 100E will be described with reference to FIGS. 1 and 6. The terms indicating directions such as “top”, “bottom”, “left”, “right”, “front” and “rear” are for clarity of explanation only. These terms do not limit the principles of this embodiment in any way. The description of the fifth embodiment is applied to the elements denoted by the same reference numerals as the fifth embodiment.

  Similar to the first embodiment, the protective fence 100E includes a holding frame 300 (see FIG. 1). The description of the first embodiment is incorporated in the holding frame 300. Similar to the fifth embodiment, the protective fence 100E includes a left display plate 230, a right display plate 240, a receiving section 510, a blue LED row 420D, and a red LED row 430D. The description of the fifth embodiment is incorporated into these elements.

  The protective fence 100E further includes a display plate 250 of an additional display unit, an additional LED row 440, and a control circuit 520E. Similar to the sixth embodiment, the control circuit 520E lights one of the blue LED row 420D and the red LED row 430D in accordance with the moving direction of the door SDR (see FIG. 1). The description of the fifth embodiment is applied to the control for the blue LED row 420D and the red LED row 430D.

  The control circuit 520E further controls the LED string 440. Unlike the blue LED row 420D and the red LED row 430D, the control circuit 520E does not have to interlock the lighting operation of the LED row 440 with the operation of the door SDR. For example, the control circuit 520E may always turn on the LED row 440. Alternatively, the control circuit 520E may control the lighting of the LED array 440 according to a predetermined external signal. The principle of this embodiment is not limited to a specific control for the LED string 440.

  The display plate 250 is smaller than each of the left display plate 230 and the right display plate 240. The display plate 250 is superposed on the front surfaces 231 and 241 of the left display plate 230 and the right display plate 240 so as not to overlap the leakage portions 238 and 248. In the present embodiment, the other display unit and the display plate of the other display unit are exemplified by the display plate 250.

  The display plate 250 includes a front surface 251, a rear surface 252, and a peripheral surface 253. The rear surface 252 is in contact with the front surfaces 231 and 241 of the left display plate 230 and the right display plate 240. The front surface 251 is located on the opposite side of the rear surface 252. The peripheral surface 253 forms a substantially rectangular contour between the front surface 251 and the rear surface 252.

  The peripheral surface 253 includes an upper edge surface 254, a lower edge surface 255, a left edge surface 256, and a right edge surface 257. The upper edge surface 254 faces the LED row 440. The display plate 250 is attached to the left display plate 230 and the right display plate 240 so that the upper edge surface 254 of the display plate 250 is substantially flush with the upper edge surfaces 234 and 244 of the left display plate 230 and the right display plate 240. May be overlaid. The lower edge surface 255 is located on the opposite side of the upper edge surface 254. The left edge surface 256 extends substantially vertically between the left ends of the upper edge surface 254 and the lower edge surface 255. The right edge surface 257 extends substantially vertically between the right ends of the upper edge surface 254 and the lower edge surface 255.

  The LED array 440 includes a plurality of light emitting diodes 441. The plurality of light emitting diodes 441 emit light toward the upper edge surface 254 of the display plate 250. The hue of the light emitted from the plurality of light emitting diodes 441 may be determined so as to match the design of the image displayed on the display plate 250. The principle of this embodiment is not limited to a particular hue of light emitted from the LED array 440. In the present embodiment, the third light emitting element row is exemplified by the LED row 440. The plurality of third light emitting elements are exemplified by the plurality of light emitting diodes 441. The third light is exemplified by the light emitted from the LED array 440. The third incident portion is exemplified by the upper edge surface 254 of the display plate 250.

  The plurality of light emitting diodes 441 of the LED row 440 may be arranged substantially parallel to the blue LED row 420D. In this case, the LED row 440 and the blue LED row 420D can be arranged in a narrow space.

  The front surface 251 of the display plate 250 includes a leakage portion 258. When the light from the LED row 440 is incident on the upper edge surface 254 of the display plate 250, the light is substantially totally reflected in the area excluding the leakage portion 258 and propagates internally toward the lower edge surface 255. A part of the light leaks at the leaking portion 258. The leaking portion 258 may be formed by a method similar to that of the leaking portions 238 and 248 that draw the graphic (image) of the arrow.

  The leak 258 shown in FIG. 6 is star-shaped. A designer who designs the display board 250 may give the leaking portion other shapes. For example, the designer may form the leakage portion 258 so that a logo mark of a company or a product is displayed. The principle of the present embodiment is not limited to the specific shape of the leak portion 258. In the present embodiment, the third leak portion is exemplified by the leak portion 258. The third image is illustrated by the star mark drawn by the leak 258.

<Seventh Embodiment>
The designer can design various guard fences according to the design principle described in relation to the sixth embodiment. In the seventh embodiment, an exemplary guard fence is described.

  FIG. 7 is a schematic front view of the protective fence 100F of the seventh embodiment. The protective fence 100F will be described with reference to FIGS. 1, 6 and 7.

  The protective fence 100F includes a display unit 200F and a holding frame 300F. The holding frame 300F corresponds to the holding frame 300 described with reference to FIG. The display unit 200F includes display plates 260 and 270 that are overlapped with each other. The display plate 260 is larger than the display plate 270. The display plate 260 corresponds to the left display plate 230 and the right display plate 240 described with reference to FIG. 6. The display panel 270 corresponds to the display panel 250 described with reference to FIG.

  The display plate 260 is formed of a plurality of rectangular plates (not shown) arranged in the horizontal direction. Each of the plurality of rectangular plates corresponds to the left display plate 230 or the right display plate 240 described with reference to FIG. 6 and has a function as an optical waveguide. The plurality of rectangular plates may be formed based on glass or acrylic. The arrow marks 261 drawn on the display plate 260 correspond to the leak portions 238 and 248 described with reference to FIG. 6. The arrow mark 261 emits light under the supply of light.

  The display board 270 is superposed on the display board 260. The display plate 270 is formed of a rectangular plate having a function as an optical waveguide. The rectangular plate may be formed based on glass or acrylic. The logo mark 271 drawn on the display plate 270 corresponds to the leak portion 258 described with reference to FIG. The logo mark 271 emits light under the supply of light.

  The holding frame 300F includes a left column 311F, a right column 312F, an upper girder portion 313, a lower girder portion 314, and four holding claws 321, 322, 323, 324. The left support column 311F is provided upright along the left edge of the display plate 260. The right support column 312F is erected along the right edge of the display plate 260. The lower ends of the left support column 311F and the right support column 312F are fixed to the floor surface FLR.

  The control circuit 520E described with reference to FIG. 6 may be incorporated in the left column 311F and / or the right column 312F. In addition, a connector element (not shown) or a receiver (not shown) used as the receiver 510 may be attached to the left support column 311F and / or the right support column 312F.

  The holding claws 321 and 322 project rightward from the left support column 311F and are connected to a region near the right edge of the display plate 260. The holding claws 323 and 324 project leftward from the right support column 312F and are connected to a region near the left edge of the display plate 260. The holding claws 322 and 324 are located below the holding claws 321 and 323. Since the display plate 260 is connected to the holding claws 321, 322, 323, 324, the left support column 311F and the right support column 312F can properly support the display plate 260.

  The upper girder portion 313 extends laterally along the upper edges of the display plates 260 and 270. The lower girder portion 314 extends laterally below the upper girder portion 313 along the lower edge of the display plate 260. The blue LED row 420D and the LED row 440 described with reference to FIG. 6 may be incorporated in the upper girder portion 313. The red LED row 430D described with reference to FIG. 6 may be incorporated in the lower girder portion 314.

  Other additional equipment may be attached to the holding frame 300F. For example, a speaker (not shown) that emits sound may be incorporated in the holding frame 300F. In this case, the control circuit 520E incorporated in the holding frame 300F may control the speaker in addition to the blue LED row 420D, the red LED row 430D, and the LED row 440. The control circuit 520E may output sound from the speaker according to the direction signal.

  The guard fences described in connection with the various embodiments above are applicable to various automatic doors. Some of the various features described in connection with one of the various embodiments described above may be applied to the techniques described in connection with another embodiment.

  The principles of the above-described embodiments are preferably applied to various automatic doors.

100 to 100F ・ ・ ・ ・ ・ ・ ・ ・ Protection fences 200, 200A, 200B, 200F ・ ・ ・ Display 210 ・ ・ ・・ ・ ・ Display surface 221 ・ ・ ・ ・ ・ ・ ・ ・ Front surface (optical waveguide part)
222 ····· Rear surface (optical waveguide part)
224 ... Upper edge surface (incident portion, first incident portion)
225 ... Lower edge surface (incident part, second incident part)
228, 228B ... Leakage portion 238 ... Leakage portion (first leakage portion)
248 ... Leakage portion (second leakage portion)
250 ···· Display board (other display unit, other display board)
258 ... Leakage portion (third leakage portion)
300, 300F ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Holding frames 311, 312, 311F, 312F ・ ・ ・ ・ ・ Prop 313 ・ ・ ・ ・ ・・ ・ ・ Upper girder 314 ・ ・ ・ ・ ・ ・ ・ ・ Lower girder 400, 400B ・ ・ ・ ・ ・Light sources 411, 421, 421D ... Blue light emitting diode (first light emitting element)
412, 431, 431D ... Red light emitting diode (second light emitting element)
420, 420D: Blue LED row (first light emitting element row)
430, 430D: Red LED row (second light emitting element row)
440 ... LED row 440 (third light emitting element row)
441 ... Light-emitting diode (third light-emitting element)
510 ... Receiving unit 520, 520C, 520E ... Control circuit AMD ... ············ Automatic door SDR ········· TRE ········· .... Tojiri

Claims (12)

Fixed near the automatic door to separate a person around the automatic door from the movable region of the door butt moving between a closed position where the passage is closed and an open position where the passage is open. It ’s a guard fence,
A display unit having a display surface for displaying an image in association with the movement of the front Kitobira,
A light source that emits light to the display unit,
An upper girder portion laterally extending along the upper edge of the display portion, a lower girder portion laterally extending along the lower edge of the display portion, and a left edge of the display portion A holding frame provided with a left support pillar standing on the floor surface and a right support pillar standing on the floor surface along the right edge of the display section ,
A control circuit for controlling the light source according to a direction signal indicating a moving direction of the door ,
The display unit is held by the left column and the right column,
The control circuit is a protective fence built in at least one of the left column and the right column . Before Symbol display unit includes an incident portion to which the light is incident,
The protective fence according to claim 1, wherein the display surface includes a leak portion that leaks at least a part of the light to the outside, and an optical waveguide portion that guides the light from the incident portion to the leak portion. Further comprising a receiving unit for receiving the direction signal,
Before SL direction signal, when from the closed position represents the movement of the door to the open position, on the display surface, as the image, so that the first image is displayed, the control circuit, the light source Control and
When the direction signal represents the movement of the door from the open position to the closed position, the control is performed such that a second image different from the first image is displayed on the display surface as the image. The guard fence according to claim 2, wherein a circuit controls the light source. The light source includes a first light emitting element row in which a plurality of first light emitting elements that emit first light as the light to the incident portion are arranged, and second light having a hue different from that of the first light. A second light emitting element row in which a plurality of second light emitting elements that are emitted as
When the direction signal represents the movement of the door from the closed position to the open position, the control circuit lights the first light emitting element row,
The protective fence according to claim 3, wherein when the direction signal represents the movement of the door from the open position to the closed position, the control circuit lights the second light emitting element row. The incident section includes a first incident section and a second incident section provided at a position facing the first incident section,
The light source emits first light as the light to the first incident portion, a first light emitting element row in which a plurality of first light emitting elements are arranged, and emits second light as the light to the second incident portion. A second light emitting element row in which a plurality of second light emitting elements are arranged,
When the direction signal represents the movement of the door from the closed position to the open position, the control circuit lights the first light emitting element row,
The protective fence according to claim 3, wherein when the direction signal represents the movement of the door from the open position to the closed position, the control circuit lights the second light emitting element row. The first image displayed on the display surface is displayed closer to the first incident section than to the second incident section,
The protective fence according to claim 5, wherein the second image displayed on the display surface is displayed closer to the second incident portion than to the first incident portion. The protective fence according to claim 6, wherein the first image is displayed at a position different from the second image in a second direction orthogonal to the first direction from the first incident portion to the second incident portion. .. The display unit includes a first display plate having a first leak part that forms the first image, and a second display plate having a second leak part that forms the second image,
The first display panel is adjacent to the second display panel,
The boundary formed between the first display panel and the second display panel prevents the first light propagating in the first display panel from internally propagating to the second display panel. Guard fence described in. Further provided with another display unit for presenting information to passersby,
The light source includes a third light emitting element row in which a plurality of third light emitting elements that emit third light to the display plate of the other display unit are arranged,
The display plate of the other display unit is formed such that at least a part of the third incident unit on which the third light enters and the third light propagating in the display plate of the other display unit leaks. The protective fence according to claim 8, further comprising: a third leaked portion. The protective fence according to claim 9, wherein the third leakage portion is formed at a position that does not overlap the first leakage portion and the second leakage portion. The upper girder section, extends Beauty laterally before SL along the first incident portion,
The lower girder portion, extending Beauty laterally beneath the front SL on the girder along the second incident portion,
The upper beam portion holds the first light emitting element row,
The protective fence according to any one of claims 5 to 10, wherein the lower girder portion holds the second light emitting element row. Further equipped with a speaker that emits sound,
The protective fence according to any one of claims 3 to 11, wherein the control circuit causes the speaker to generate the sound according to the direction signal.

Images