JP5102699B2 - Indicator light - Google Patents

Description

  The present invention relates to an indicator lamp.

  2. Description of the Related Art Conventionally, various display devices in which a panel is attached to an apparatus main body so as to be freely opened and closed have been provided (see, for example, Patent Document 1).

FIGS. 5A and 5B show an example of the above-described display device. In the display device shown in FIG. 5A, the panel 102 can be temporarily held at a predetermined angle by using the dedicated stay metal fitting 104. FIG. In the display device shown in FIG. 5B, the panel 202 can be temporarily held at a predetermined angle by utilizing the weight of the panel 202.
JP-A-8-76694 (paragraph [0030] -paragraph [0050] and FIGS. 1 to 4)

  In the display device shown in FIG. 5A described above, the panel 102 can be temporarily held by using the dedicated stay metal fitting 104, but the stay metal fitting 104 is not shown, but the panel 102 Since a holding mechanism for temporarily holding the lens at a predetermined angle is also included, the number of parts is relatively large and the cost is increased. Furthermore, since both ends of the stay metal fitting 104 are fixed to the panel 102 and the apparatus main body 101, the panel 102 cannot be removed from the apparatus main body 101 during construction.

  In the display device shown in FIG. 5B, the panel 202 can be temporarily held by moving the stay 204 to a predetermined position using the weight of the panel 202. Since the opening / closing direction is limited to the up / down direction, it is not easy to use.

  The present invention has been made in view of the above problems, and an object thereof is to provide an indicator lamp that can temporarily hold a panel at a predetermined open position while suppressing an increase in cost.

  According to the first aspect of the present invention, there is provided a lamp body having an opening on the front side, a panel for closing the opening so as to be freely opened and closed, and a holding member for temporarily holding the panel at a position where one end is rotatably attached to the panel and the opening is opened. A guide that slides movably between the other end side of the holding member in the temporarily holding state of the panel and the closing position of the other end side in the closed state of the panel. The main body has a guide, and the guide includes stress urging means for applying stress to the holding member in the vicinity of the temporary holding position, and stress reducing means for reducing stress at the temporary holding position.

  According to the invention of claim 2, the stress urging means is constituted by an inclined portion in which the contact portion of the guide with the holding member is inclined in the same direction as the stress urging direction from the closed position to the temporary holding position. It is characterized by that.

  The invention of claim 3 is characterized in that the holding member is made of an elastic material.

  The invention of claim 4 is characterized in that the holding member is detachably attached to the guide in the temporary holding position.

  According to the first aspect of the present invention, an urging force is applied to the holding member at least in the vicinity of the temporary holding position. However, when the other end side of the holding member is disposed at the temporary holding position, the urging force is reduced by the stress reducing means. Therefore, the panel can be surely temporarily held in a predetermined open state, and the holding member can be of a simple structure by providing the stress urging means and the stress reducing means on the guide. In addition to being able to reduce the cost, it is possible to suppress an increase in cost, and there is an effect that the opening and closing direction of the panel is not limited as in the conventional example.

  According to the invention of claim 2, since the stress urging means is constituted by the inclined portion provided in the guide, it is not necessary to provide the stress urging means separately, and the number of parts can be reduced and the cost increase can be suppressed. There is an effect that can be.

  According to the invention of claim 3, when the opening and closing direction of the panel is set to the horizontal direction, a large force is not applied to the holding member, so that an elastic thin plate or resin can be used as the material of the holding member. As a result, the holding mechanism can be configured with a simpler structure, and an increase in cost can be suppressed.

  According to the invention of claim 4, since the panel can be detached from the lamp body by providing the holding member so as to be detachable from the guide, for example, when the panel is a heavy object such as a light guide plate, the lamp body There is an effect that the burden at the time of construction can be reduced by removing the panel.

  Hereinafter, embodiments of an indicator lamp according to the present invention will be described with reference to FIGS. The indicator lamp according to the present invention is attached to, for example, a ceiling or a wall and used as a sign for evacuation guidance. In the following description, unless otherwise specified, the direction of arrow ab in FIG. 1A is the front-rear direction, the direction of arrow cd is the up-down direction, and the direction of arrow ef is the left-right direction. I do.

  As shown in FIG. 1 (a), the indicator lamp of the present embodiment includes a lamp body 1 that is open on the front side, and a light guide plate unit 2 that is housed in the lamp body 1 so as to be openable and closable so as to close the opening. One end side is rotatably attached to the light guide plate unit 2 and includes a holding metal fitting 4 that temporarily holds the light guide plate unit 2 at a position where the opening is opened.

  The lamp body 1 includes, for example, a synthetic resin molded product having a substantially rectangular box-shaped body portion 12 having an open front surface, and is made of metal and has electrical components (such as the terminal block 8 and the lighting control block 9 in this embodiment). The mounting base 10 is attached to the bottom of the main body 12 by appropriate mounting means. Note that a predetermined gap is provided between the bottom of the main body 12 and the mounting base 10 so that a distal end portion of a holding metal fitting 4 to be described later can be movably disposed (FIG. 2A and FIG. 3). a)).

  A knockout that configures a wire introduction hole for introducing a power line (not shown) for supplying commercial power from the upper side into the inside of the main body portion 12 on the side wall portion on the upper side of the main body portion 12 near the center in the left-right direction. 12a, and a knockout 12b (only one side is shown in FIG. 1 (a)) is provided on both sides of the knockout 12a in the left-right direction. The knockout 12b forms a screw insertion hole for inserting a fixing screw (not shown). Yes. In addition, a set of two lamp sockets 7, 7 arranged at a predetermined interval are attached to the inner side surfaces of the four side wall portions of the main body portion 12, respectively. 7 is provided with a lamp 13 (only the upper and left side walls are shown in FIG. 1A). Each set of lamp sockets 7 and 7 and a lighting circuit to be described later are electrically connected by electric wires (not shown), and each set of lamp sockets 7 and 7 is connected to the lighting circuit via a corresponding electric wire. Lighting power is supplied from.

  The lamp 13 is formed in an elongated prismatic shape as shown in FIG. 1A, for example, and power supply portions 13a and 13a connected to the lamp sockets 7 and 7 are provided at both ends in the longitudinal direction. Then, the four lamps 13 are arranged along the four sides of the main body part 12 by connecting both the power feeding parts 13 a and 13 a of the lamps 13 to the corresponding lamp sockets 7 and 7, respectively.

  On the other hand, an electric wire introduction hole 10a for introducing the power supply line from the back side into the main body 12 is provided at a substantially central portion of the mounting base 10, and the electric wire introduction hole 10a is interposed between the right and left directions. Screw insertion holes 10b and 10b through which fixing screws (not shown) are inserted are respectively provided on both sides. That is, the indicator lamp of the present embodiment can attach the lamp body 1 to the ceiling by using the knockout 12b, and can attach the lamp body 1 to the wall surface by using the screw insertion holes 12b and 12b. It is. It should be noted that knockouts (not shown) for wire introduction and attachment are respectively provided at portions corresponding to the wire introduction holes 10a and the screw insertion holes 10b and 10b at the bottom of the main body portion 12, and each knockout is provided. The power line can be introduced into the main body 12 by opening the lamp, and the lamp main body 1 can be screwed on the back.

  Further, on the front surface of the mounting base 10, a terminal block 8, a storage battery (not shown) for supplying power in the event of a power failure, a lighting circuit, a light source, and a status of the storage battery (for example, the state of charge of the storage battery) are checked. A lighting control block 9 having an inspection function and incorporating a control circuit for controlling the lighting circuit is attached. Here, a self-inspection switch (not shown) for performing self-inspection, a replacement time of the storage battery, and the like are displayed on the lower side wall of the main body 12, for example, a display unit (not shown) made of LEDs. Is provided with a plurality of exposure holes 12c, so that self-inspection can be performed by pressing the self-inspection switch from the outside, and the state of charge and replacement of the storage battery can be easily confirmed Can do. The terminal block 8 and the lighting control block 9 are electrically connected by an electric wire (not shown). When the above-described power supply line introduced from the outside is connected to the terminal block 8, the power supply line is normally connected via the power supply line. The supplied commercial power supply is supplied to the lighting circuit and the storage battery is charged. In the event of a power failure, the storage battery is discharged and power is supplied to the lighting circuit.

  Further, on the left side of the mounting base 10 are substantially L-shaped receiving metal fittings 6 and 6 which are rotatably engaged with the support metal fittings 5 and 5 provided on the light guide plate unit 2 side, and are vertically arranged at a predetermined interval. They are attached side by side in the direction, and a substantially elliptical through-hole 6a is penetrated at the front end side of each receiving metal fitting 6 respectively.

  Here, on the upper left side of the mounting base 10, there is provided a guide portion 10 c with which the holding metal fitting 4 is engaged when the light guide plate unit 2 is opened and closed. As shown in FIG. 1C, the guide portion 10c has a horizontally long rectangular guide groove 10d that opens in the left-right direction, and the guide groove 10d at one end in the left-right direction of the guide groove 10d (left side in FIG. 1C). A temporary holding groove 10e that opens downward in communication with the groove 10d, and a release groove 10f that opens in the upper position of the temporary holding groove 10e in communication with the temporary holding groove 10e and the guide groove 10d. . The guide groove 10d is formed such that the lower edge portion 10g is inclined upward at an angle θ from the right side to the left side with respect to the horizontal direction. Here, the stress urging means and the inclined portion are constituted by the end edge portion 10g, and the stress reducing means is constituted by the temporary holding groove 10e.

  The light guide plate unit 2 is disposed on the back side of the substantially light guide plate 3 and the light guide plate 3 as shown in FIGS. 1A and 2A and reflects light from the lamp 13 forward. It is comprised with the reflecting plate 11. FIG. The light guide plate 3 is, for example, a transparent acrylic resin molded product, and is formed to have an outer dimension smaller than the opening dimension of the main body 12 described above, and is housed inside the main body 12 in the assembled state. . On the other hand, the reflection plate 11 is made of, for example, metal and has substantially the same outer dimensions as the light guide plate 3, and is attached to the back side of the light guide plate 3 by appropriate attachment means. Further, support metal fittings 5 that engage with the metal fittings 6 are respectively attached to portions on the left side of the reflection plate 11 that correspond to the metal fittings 6 described above. A fixing screw 14 for fixing the light guide plate unit 2 to the lamp body 1 is attached. In addition, a notch portion 5 a that engages with an edge of the corresponding through hole 6 a of the receiving metal fitting 6 is provided at the front end side of each support metal fitting 5, and the holding metal fitting 4 is provided on the side of the support metal fitting 5. A support piece 5b for rotatably supporting is bent integrally. Here, the light guide plate unit 2 constitutes a panel.

  In the light guide plate unit 2, light from the lamps 13 respectively incident from the four side end surfaces of the light guide plate 3 is reflected a plurality of times on the reflection plate 11 or the front surface of the light guide plate 3 inside the light guide plate 3. It is designed to irradiate uniformly from the front of the camera.

  Here, the holding | maintenance metal fitting 4 which temporarily hold | maintains the light-guide plate unit 2 mentioned above in the position which opens the opening of the lamp main body 1 is demonstrated. The holding metal 4 is made of, for example, a thin metal plate having elasticity, and has a horizontally long substantially rectangular plate-like holding piece 4a as shown in FIGS. 4 (a) and 4 (b), and one end in the width direction of the holding piece 4a. A support piece 4b having a longer dimension than that of the holding piece 4a is integrally bent (upper side in FIG. 4A). Further, an engagement groove 4c that engages with the lower edge portion 10g of the guide groove 10d described above is provided on the distal end side (the right side in FIG. 4A) of the holding piece 4a, and further the support piece 4b. A shaft hole 4d is provided through the rear end side (the left side in FIG. 4B). Then, when the shaft portion 14 (see FIG. 2A) inserted through the shaft hole 4d is pivotally supported by the support piece 5b, the holding metal fitting 4 is rotatably supported with respect to the light guide plate unit 2. Here, a holding member is constituted by the holding metal fitting 4.

  Next, a procedure for attaching the indicator lamp of this embodiment will be described. In the following description, the case where the indicator lamp is attached to the wall surface will be described. First, a wire introduction and attachment knockout (not shown) provided at the bottom of the main body portion 12 is opened, and a power line is introduced into the main body portion 12 from the back side through the electric wire introduction knockout and the electric wire introduction hole 10a. At the same time, the lamp body 1 is screwed to the wall surface using a mounting knockout and mounting screws (not shown) inserted through the screw insertion holes 10 b and 10 b, and then each core wire of the power supply line is connected to the terminal block 8. Next, after inserting the front-end | tip part of each support metal fitting 5 provided in the light-guide plate unit 2 side into the through-hole 6a by the side of the front-end | tip of the corresponding metal fitting 6 provided in the lamp main body 1 side, respectively, the light-guide plate unit 2 is moved downward with respect to the lamp body 1, and the notch 5a provided at the tip of each support fitting 5 is engaged with the opening edge of the through hole 6a. At this time, the engaging groove 4c provided in the holding piece 4a of the holding metal fitting 4 is engaged with the temporary holding groove 10e of the guide portion 1c.

  Thereafter, the light guide plate unit 2 is rotated by using the engaging portion of the support metal fitting 5 and the receiving metal fitting 6 as a fulcrum while lifting the tip of the holding piece 4a of the holding metal 4 upward and sliding it to the right. While being housed inside the main body 1, the light guide plate unit 2 is fixed to the lamp body 1 using a fixing screw 14. At this time, the distal end portion of the holding piece 4a of the holding fitting 4 moves to the right end while sliding on the lower edge portion 10g of the guide groove 10c. Further, each set of lamp sockets described above through two sets of insertion holes (not shown) provided on the four sides of the light guide plate unit 2 with the power feeding portions 13a and 13a on both sides of the four lamps 13 is provided. After mounting on 7, 7, a frame body (not shown) to which a display board (not shown) on which a display pattern (for example, a pictogram imitating a person) is formed is attached from the front side to the lamp body 1 Insert the indicator lamp when it is inserted and fixed with screws.

  Here, for example, when resetting the lighting time measured by the lighting control block 9 at the time of lamp replacement or replacing the built-in storage battery, the light guide plate unit 2 needs to be held open with respect to the lamp body 1. However, in the indicator lamp of this embodiment, the reset operation and the storage battery replacement can be easily performed by temporarily holding the light guide plate unit 2 in the open position. Below, the operation | movement of the holding | maintenance metal fitting 4 at the time of carrying out the temporary holding of the light-guide plate unit 2 is demonstrated based on FIGS. In the following description, it is assumed that the frame and the lamp 13 are removed in advance.

  First, in the state shown in FIGS. 2A and 2B (that is, the state where the light guide plate unit 2 is housed inside the lamp body 1), the tip of the holding piece 4a of the holding metal fitting 4 is the right end of the guide groove 10d. Is located. After loosening the fixing screw 14 from this state, when the light guide plate unit 2 is rotated in the opening direction (clockwise in FIG. 3 (a)) with the engaging portion of the support fitting 5 and the receiving fitting 6 as a fulcrum, the holding piece The engagement groove 4c on the distal end side of 4a moves to the left side while sliding on the lower edge portion 10g of the guide groove 10d (see arrow A in FIG. 1C). At this time, a larger upward stress is applied to the holding piece 4a from the end edge portion 10g to the left side, and the holding piece 4a is bent upward by this stress. When the light guide plate unit 2 is further rotated in the opening direction, the engaging groove 4c on the distal end side moves to the left along the edge portion 10g while the holding piece 4a is further bent upward, and the engaging groove 4c When reaching the left end of the guide groove 10d, the tip of the holding piece 4a is moved downward by the reaction force of the stress as shown in FIGS. 3 (a) and 3 (b) (see arrow B in FIG. 1 (c)). ), The engaging groove 4c engages with the temporary holding groove 10e.

  In this state, the engagement groove 4c on the distal end side of the holding piece 4a is engaged with the temporary holding groove 10e, so that the movement of the holding metal fitting 4 in the left-right direction is restricted. As a result, the light guide plate unit 2 is opened as described above. Temporarily held in position. Here, the right end position of the guide groove 10d is the holding member closing position, and the left end position of the guide groove 10d (that is, the position of the temporary holding groove 10e) is the temporary holding position of the holding member.

  Here, in the indicator lamp of the present embodiment, a release groove 10f communicating with the temporary holding groove 10e is provided at an upper position of the temporary holding groove 10e, and the tip end of the holding metal fitting 4 is disposed in the temporary holding groove 10e. When the light guide plate unit 2 is lifted upward with respect to the lamp body 1 from the state where the light guide plate unit 2 is temporarily held (that is, the state where the light guide plate unit 2 is temporarily held), the tip of the holding metal fitting 4 moves to the release groove 10f side, The engagement state between the holding metal fitting 4 and the guide portion 10c is released, and the engagement state between the notch portion 5b of the support metal fitting 5 and the edge of the through hole 6a of the receiving metal fitting 6 is released. When the unit 2 is pulled forward (forward), the light guide plate unit 2 is removed from the lamp body 1. That is, in the display lamp of the present embodiment, the light guide plate unit 2 can be detached from the lamp body 1 by providing the holding metal fitting 4 so as to be detachable from the guide portion 10c. Therefore, the light guide plate unit 2 of the present embodiment. In the case where the panel is heavy like this, by removing the light guide plate unit 2 from the lamp body 1, the burden during construction can be reduced.

  Thus, according to the indicator lamp of the present embodiment, upward stress is applied to the holding piece 4a of the holding metal fitting 4 by the lower edge portion 10g of the guide groove 10d. When the joint groove 4c reaches the left end (that is, the temporary holding position) of the guide groove 10d, the tip of the holding piece 4a is moved downward by the reaction force of the stress, and the engaging groove 4c is engaged with the temporary holding groove 10e. Therefore, the movement of the holding metal fitting 4 in the left-right direction is restricted, and the light guide plate unit 2 can be temporarily held securely at the open position. Further, since the lower edge portion 10g of the guide groove 10d constituting the guide portion 10c and the temporary holding groove 10e constitute the stress urging means and the stress reducing means, the holding metal fitting 4 has a simple structure. In addition, there is no need to provide a separate stress urging means, the number of parts can be reduced and the cost increase can be suppressed, and the opening and closing direction of the light guide plate unit 2 is not limited as in the conventional example. Will improve.

  In addition, since the opening and closing direction of the light guide plate unit 2 is set to the horizontal direction as in the present embodiment, a large force is not applied to the holding metal fitting 4, so that an elastic thin plate or resin is used as the material of the holding metal fitting 4. As a result, the holding mechanism can be configured with a simpler structure, and the cost increase can be suppressed.

  In the present embodiment, the lower edge portion 10g of the guide groove 10d is inclined over the entire length of the guide groove 10d. For example, only the portion indicated by a two-dot chain line C in FIG. Similarly, similarly, the light guide plate unit 2 can be temporarily held securely in the above-described open position.

The indicator lamp of this embodiment is shown, (a) is a perspective view of the state which opened the light-guide plate unit, (b) is principal part detail drawing, (c) is detail drawing of a guide part. The same as the above which fractures | ruptures partially in the state which closed the light-guide plate unit is shown, (a) is a top view, (b) is a front view. The same as the above which fractures | ruptures in the state which opened the light-guide plate unit is shown, (a) is a top view, (b) is a front view. The holding | maintenance metal fitting used for the same is shown, (a) is a front view, (b) is a side view. (A) is a perspective view of the indicator lamp of a prior art example, (b) is a perspective view of the other indicator lamp same as the above.

Explanation of symbols

1 Lamp body 2 Light guide plate unit (panel)
4 Holding bracket (holding member)
10c Guide part (guide)
10e Temporary holding groove (stress reducing means)
10g edge (stress urging means)

Claims (4)

  A lamp body having an opening on the front side, a panel that closes the opening so as to be openable and closable, and a holding member that temporarily holds the panel at a position where one end is rotatably attached to the panel and opens the opening, A guide in which the other end side of the holding member slides movably between the temporary holding position on the other end side in the temporary holding state of the panel and the closed position on the other end side in the closed state of the panel is The lamp body has, and the guide includes stress urging means for applying stress to the holding member in the vicinity of the temporary holding position, and stress reducing means for reducing the stress at the temporary holding position. Characteristic indicator light.   The stress urging means is configured by an inclined portion in which a contact portion of the guide with the holding member is inclined in the same direction as the stress urging direction from the closed position toward the temporary holding position. The indicator lamp of Claim 1 characterized by these.   The indicator lamp according to claim 1, wherein the holding member is made of an elastic material.   The indicator lamp according to any one of claims 1 to 3, wherein the holding member is detachably attached to the guide at the temporary holding position.

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