JP5634628B2 - Lighting device - Google Patents

Description

  The present invention relates to an illuminating device that is attached to a ceiling surface or wall surface such as a guide light.

  Lighting devices that are attached to ceiling surfaces or walls, such as guide lights, need to be attached and removed with the main body attached to the ceiling surface or walls for internal wiring, inspection, parts replacement, etc. is there.

JP 2000-149626 A Japanese Patent Laid-Open No. 2002-23671 JP 2007-18873 A JP 2000-133032 A No. 05-9416 (No. 06-68226)

When attaching and detaching a display board or the like with the main body attached to the ceiling surface, there is no work space on the upper side of the main body because of the ceiling surface. In addition, when the installation location is high, the work is performed at a high place.
The present invention has been made, for example, in order to solve the above-described problems. In particular, in a double-sided lamp in which display plates are attached to the front surface and the back surface of a main body, two display plates can be easily attached. For the purpose.

  The illumination device according to the present invention is an illumination device in which two display units are attached to a front surface and a back surface of a box-shaped main body, respectively. Each display unit of the two display units includes a first holding unit and the first holding unit. And a second holding part formed in a position separated from the part by a predetermined distance in the first direction and having a direction substantially perpendicular to the first direction as an axis, and the main body includes the first holding part and the An engaging portion that engages with the second holding portion; and when the display units of the two display units are moved toward the first direction and approach the main body, the second holding portion and The display units of the two display units are substantially perpendicular to the axis of the second holding part so that the engaging part can be engaged between the first holding part and the second holding part. And a guide portion for guiding in a second direction different from the first direction. The engaging portion is positioned in a third direction substantially opposite to the second direction with respect to the guide portion, and after the second holding portion has overcome the guide portion, each display unit of the two display units is By moving in the third direction, it is engaged between the first holding part and the second holding part.

  According to the illumination device according to the present invention, in the illumination device in which the two display units are attached to the front surface and the rear surface of the box-shaped main body, the guide portion is in contact with the second holding portion, and each of the two display units is Since the display unit is guided so that the engaging portion can be engaged between the first holding portion and the second holding portion, two display units are provided in the double-sided lamp that attaches the display unit to the front surface and the back surface of the main body. There is an effect that can be easily attached to the main body.

FIG. 3 is an exploded perspective view showing the configuration of the guide light 100 in the first embodiment. FIG. 4 is an enlarged three-side view and an enlarged perspective view in which a part of the display unit 120 according to the first embodiment is enlarged. 3 is an enlarged three-side view and an enlarged perspective view of a part of a main body 110 in the first embodiment. The schematic diagram which shows a mode that the 2nd engaging part 111 in Embodiment 1 and the 1st engaging part 121 engage. The schematic diagram which shows a mode that the lamp holder unit 130 in Embodiment 1 is attached to the main body 110 to which the display unit 120 was attached. FIG. 6 shows a modification of the mounting structure in the first embodiment. FIG. 10 is a diagram showing another modification of the mounting structure in the first embodiment. FIG. 10 is a diagram showing still another modification of the mounting structure in the first embodiment. FIG. 4 is an exploded perspective view showing a configuration of a guide light 100 in a second embodiment. FIG. 6 is a schematic diagram showing a state when the display unit 120 is attached to the main body 110 in the second embodiment. FIG. 6 is an overall perspective view showing an appearance of a guide light 100 in a third embodiment. FIG. 9 is an exploded perspective view showing the internal structure of the guide light 100 in the third embodiment. FIG. 6 shows details of the shapes of a main body 110, a display unit 120, and a lamp holder unit 130 in a third embodiment. FIG. 10 is an exploded perspective view showing the internal structure of the guide light 100 in the fourth embodiment. The side view and perspective view which show the shape of the reinforcement metal fitting 180 in Embodiment 4. FIG. The perspective view which shows the positional relationship at the time of attaching the reinforcing metal fitting 180 to the main body frame 112 in Embodiment 4. FIG. The partially expanded cross-section perspective view which shows the state which attached the reinforcement metal fitting 180 and the attachment metal fitting 190 to the main body frame 112 in Embodiment 4. FIG. FIG. 10 is a side cross-sectional view showing a state in which the display unit 120 and the lamp holder unit 130 are attached to the main body frame 112 in the fourth embodiment. FIG. 9 is an enlarged cross-sectional view in side view showing a state in which the lamp holder unit 130 and the display unit 120 are removed from the main body frame 112 in the fourth embodiment. FIG. 18 shows a modification of the shape of the second guide portion 119 in the fourth embodiment.

Embodiment 1 FIG.
The first embodiment will be described with reference to FIGS.

  FIG. 1 is an exploded perspective view showing the configuration of the guide light 100 in this embodiment.

The guide lamp 100 (lighting device) includes a main body 110, a display unit 120, and a lamp holder unit 130.
The main body 110 includes a main body frame 112, a terminal block 140, a battery 150, and a lighting device 160.
The main body frame 112 is a casing of the guide light 100 and has a shape in which a front surface of a rectangular parallelepiped (a surface on the near side when viewed from the X direction) is opened. The back plate 114 is a portion of the rear surface (back side when viewed from the X direction) of the main body frame 112.
The terminal block 140 is located inside the main body 110 and is fixed to the left side surface (the back side surface when viewed from the Y direction) of the main body frame 112 or the back plate 114. The terminal block 140 is used for wiring such as a commercial power source.
The battery 150 is located inside the main body 110 and is fixed to the left side surface or the back plate 114 of the main body frame 112. The battery 150 is charged with electric power obtained from a commercial power source during normal operation, and serves as a power source for lighting the guide light during a power failure.
The lighting device 160 is located inside the main body 110 and is fixed to the right side surface (front surface when viewed from the Y direction) or the lower surface (front surface when viewed from the Z direction) or the back plate 114 of the main body frame 112. ing. The lighting device 160 generates a voltage to be applied to the light source from electric power obtained from the commercial power source or the battery 150, and turns on the light source. In addition, the lighting device 160 controls the guide light 100, for example, by detecting a power failure of the commercial power supply and supplying the power obtained from the battery 150 to the light source for emergency lighting.

The main body frame 112 has a power line insertion hole 113 in the upper surface (surface on the near side when viewed from the Z direction) and the back plate 114. The power supply line insertion hole 113 is a hole for passing wiring from a commercial power supply. The power supply line insertion hole 113 may be provided on only one of the upper surface and the back surface, or on the side surface (the front surface or the back surface as viewed from the Y direction).
Further, the power line insertion hole 113 may be knocked out. That is, the power supply line insertion hole 113 is not opened, and the body frame 112 has a thin wall with a shape of the outer periphery of the power supply line insertion hole 113 so that the operator can open the power supply line insertion hole 113 as necessary. A part is provided. When the guide light 100 is attached to the ceiling surface, the operator opens and uses the power line insertion hole 113 on the upper surface of the main body frame 112. Further, when the guide light 100 is attached to the wall surface, the operator opens and uses the power supply line insertion hole 113 of the side surface of the main body frame 112 or the back plate 114. Since the unused power supply line insertion hole 113 is not opened, dust and the like can be prevented from entering from the unused power supply line insertion hole 113.

The display unit 120 is attached to the opened front surface of the main body frame 112. Thereby, the guide light 100 becomes a substantially rectangular parallelepiped shape as a whole.
The main body frame 112 (second member) has four second engaging portions 111.
The second engaging portion 111 is disposed inside the opened front surface of the main body frame 112, and the display unit 120 is attached to the main body frame 112 by engaging with the first engaging portion 121 of the display unit 120. And fix.

The display unit 120 includes a display unit frame 122, a display plate 123, and a light guide plate 124.
The light guide plate 124 is disposed inside the display unit frame 122. The light guide plate 124 receives light emitted from a light source built in the lamp holder unit 130 from the upper end, and illuminates the display plate 123 with the incident light, thereby causing the display plate 123 to emit light.
The display plate 123 has a rectangular shape, and is disposed inside the display unit frame 122 and outside the light guide plate 124. The display board 123 is printed with a design indicating evacuation guidance such as an emergency exit stipulated in the Fire Service Law, and emits light by light emitted from a light source built in the lamp holder unit 130.
The light source is not necessarily provided in the lamp holder unit 130. For example, a light source may be disposed immediately below the display plate 123, or a surface light source such as an EL light source may be used in place of the light guide plate 124.
Further, by using the display board 123 on which another design is printed, the guide light 100 can be used as an illumination device or a display device instead of a guide light.
When the guide light 100 is used as a lighting device or a display device and does not need to be turned on at the time of a power failure, the battery 150 may be omitted, and the light source may be turned on only when power is supplied from a commercial power source. Good.

  The display unit frame 122 (first member) has four first engaging portions 121 on the surface (back surface) opposite to the surface (front surface) on which the display plate 123 is provided. The first engagement portion 121 is located at a position corresponding to the second engagement portion 111 of the main body frame 112, and the display unit 120 is attached and fixed to the main body 110 by engaging with the second engagement portion 111. .

The lamp holder unit 130 has a light source (not shown). By attaching the lamp holder unit 130 to the upper part of the display unit 120, the light emitted from the light source can enter the light guide plate 124, and the display plate 123 can emit light.
The lamp holder unit 130 has two third engaging portions 131. The third engaging portion 131 engages with the main body frame 112 to attach and fix the lamp holder unit 130 to the main body 110.

FIG. 2 is an enlarged three-side view and an enlarged perspective view in which a part of the display unit 120 in this embodiment is enlarged.
This figure shows the periphery of the first engagement portion 121 located on the right side (front side when viewed from the Y direction) when viewed from the front (X direction). The first engagement portion 121 located on the left side (the back side as viewed from the Y direction) has a symmetrical shape.

The first engagement part 121 includes a second holding part 220 and a holding support part 230.
The 2nd holding | maintenance part 220 (circular protrusion) is a horizontal column shape. The second holding unit 220 is positioned in the horizontal direction (first direction) with respect to the back surface (first holding unit 210) of the display unit frame 122, and between the first holding unit 210, the second engaging unit 111. Is inserted.
The holding support part 230 (projection piece) is plate-shaped, and is a member for keeping the distance between the first holding part 210 and the second holding part 220 constant. The side surface 231 of the holding support portion 230 is filleted and has rounded corners.

FIG. 3 is an enlarged three-side view and an enlarged perspective view in which a part of the main body 110 in this embodiment is enlarged.
This figure shows the periphery of the second engaging portion 111 located on the right side (front side when viewed from the Y direction) when viewed from the front (X direction). The second engagement portion 111 located on the left side (the back side as viewed from the Y direction) has a symmetrical shape.

The second engaging portion 111 (guide wall) has a columnar shape protruding from the main body frame 112 to the inside of the main body frame 112. The second engagement portion 111 includes a locking portion 310 (engagement portion), a guide portion 320, and a support portion 330.
The guide section 320 (restricting piece) has a columnar shape with a substantially right-angled triangle section cut along the XZ plane, and the guide contact surface 321 (the oblique side portion of the right-angled triangle) on the front side when viewed from the X direction. On the far side, there is a guide back surface 322 (one bottom portion of a right triangle). A portion corresponding to the apex on the near side when viewed from the Z direction of the right triangle is referred to as a guide top portion 323.
The support part 330 is a columnar shape having a substantially rectangular cross section taken along the XZ plane, and is located on the lower side (back side as viewed from the Z direction) of the guide part 320. The front surface (front side when viewed from the X direction) of the support portion 330 is in a position aligned with the guide portion 320, but the rear surface (back side when viewed from the X direction) is behind the guide back surface 322 of the guide portion 320, A portion of the upper surface of the support portion 330 located behind the guide portion 320 forms a support surface 331.
The locking portion 310 (engagement portion) is located between the lower side (third direction) of the guide portion 320 and the support portion 330, and when engaged with the first engagement portion 121, the first holding portion 210. And the second holding part 220.

FIG. 4 is a schematic cross-sectional view showing a state in which the second engagement portion 111 and the first engagement portion 121 are engaged in this embodiment.
This figure shows the PP cross section shown in FIG. 3, and shows how the second engaging portion 111 and the first engaging portion 121 located on the right side (front side when viewed from the Y direction) are engaged in the Y direction. It shows the place seen from.

When attaching the display unit 120 to the main body 110, the operator brings the display unit 120 closer to the main body 110 from the X direction.
When the display unit 120 approaches the main body 110 to a predetermined distance, the holding contact surface 221 of the second holding unit 220 and the guide contact surface 321 of the guide unit 320 come into contact with each other.
The display unit 120 receives a force obtained by combining the force F1 pressed by the operator from the X direction and the repulsive force F2 received from the guide contact surface 321 with which the holding contact surface 221 contacts. Along the direction A (second direction).
When the second holding part 220 reaches the guide top part 323, the repulsive force F2 disappears, and the display unit 120 moves in the B direction by the force F1 pressed by the operator.
When the display unit frame 122 comes into contact with the main body frame 112 and the display unit 120 can no longer move in the B direction, when the operator loosens the force to hold the display unit 120, the display unit 120 is affected by gravity. In response, it moves in the C direction (third direction).
In addition, it is good also as preventing the display unit 120 falling rapidly by forming a small protrusion in the guide back surface 322, and producing a frictional force between the 2nd holding | maintenance parts 220. FIG.
When the holding contact surface 221 of the second holding unit 220 contacts the support surface 331 of the support unit 330, the display unit 120 can no longer move in the C direction, and the locking unit 310 is connected to the first holding unit 210 and the second holding unit 210. It engages with the holding part 220.
Thereby, the first engagement portion 121 and the display unit frame 122 are engaged and fixed, and the display unit 120 is attached to the main body 110.

FIG. 5 is a schematic diagram showing how the lamp holder unit 130 in this embodiment is attached to the main body 110 to which the display unit 120 is attached.
In this figure, the guide light 100 is viewed from the Y direction. The main body frame 112 on the front side is omitted so that the inside can be seen. Also, parts such as the terminal block 140 and wiring are omitted.

  In a state where the display unit 120 is attached to the main body 110, the first engagement portion 121 is engaged with the second engagement portion 111, and the display unit frame 122 is in contact with the main body frame 112. The display unit 120 cannot be moved, and the display unit 120 is fixed to the main body 110.

In this embodiment, the lamp holder unit 130 is further attached to the main body 110 to which the display unit 120 is attached, and the display unit 120 is fixed so as not to move in the D direction.
Note that any means may be used as means for fixing the lamp holder unit 130 to the main body 110 or the display unit 120, and thus description thereof is omitted here.

When the lamp holder unit 130 is attached to the main body 110 to which the display unit 120 is attached, the third engaging portion 131 (fixed portion) contacts the inside of the main body frame 112, and thus the display unit 120 cannot be moved in the D direction. .
This can prevent the display unit 120 from being detached.

  If the lamp holder unit 130 is attached to the display unit 120 before attaching the display unit 120 to the main body 110, the third engaging portion 131 hits the main body frame 112, and the main body 110 cannot be attached to the display unit 120.

  Next, the flow of guide light mounting work for mounting the guide light 100 in this embodiment on a ceiling surface will be described.

First, in the main body attaching step S11, only the main body 110 is attached directly to the ceiling surface.
On the ceiling surface, a hole is made in advance at a position corresponding to the power line insertion hole 113 so that the power line can be drawn out from the hole.
Next, in the wiring step S12, the power supply line is drawn out from the power supply line insertion hole 113 and connected to the terminal block 140 for wiring.
Then, the display unit 120 is attached to the main body 110 in the display unit attachment step S13.
Finally, the lamp holder unit 130 is attached to the main body 110 to which the display unit 120 is attached.

  Since it is necessary to touch the inside of the main body frame 112 in the wiring step S12, the display unit 120 cannot be attached in advance to the main body 110 to be attached to the ceiling surface in the main body attachment step S11, and after the main body 110 is attached to the ceiling surface Thus, the display unit 120 is attached to the main body 110.

  In this example, since the lamp holder unit 130 (the third engagement portion 131) has a role as a fixing portion that prevents the display unit 120 from moving in the D direction, as described above, the display unit It is necessary to execute the lamp holder unit mounting step S14 after the mounting step S13. However, the role as a fixing portion that prevents the display unit 120 from moving in the D direction may be realized by a component other than the lamp holder unit 130 or another mechanism, or the fixing portion may not be provided. In that case, the work procedure of attaching the display unit 120 to the main body 110 after attaching the lamp holder unit 130 to the display unit 120 (or the main body 110) may be used.

Since the main body 110 is attached to the ceiling surface 501 in the main body attachment step S11, there is no work space on the upper side of the main body 110.
Therefore, the display unit mounting step S13 is an operation at a look-up angle.
Even when the guide light 100 is attached to the wall surface, the work space may not be secured above the main body 110 depending on the attachment position.

According to the mounting structure provided in the guide light 100 (illuminating device) in this embodiment, the position of the first member (display unit frame 122 / display unit 120) is set to the position of the second member (main body frame 112 / main body 110). If the approximate position is adjusted even if it is not precisely aligned with the guide portion 320, the guide portion 320 comes into contact with the second holding portion 220, and the engaging portion (locking portion 310) is connected to the first holding portion 210 and the second holding portion. Since the first member (display unit frame 122 / display unit 120) is guided so that it can be engaged with the holding part 220, the first member can be easily operated even when working at a looking-up angle or with one hand. (Display unit frame 122 / display unit 120) can be attached to the second member (main body frame 112 / main body 110).
Therefore, the workability of the work of attaching the display unit 120 is improved.

  Further, the operator simply brings the first member (display unit frame 122 / display unit 120) closer to the second member (main body frame 112 / main body 110) from a predetermined direction (X direction / horizontal direction). Since the member (display unit frame 122 / display unit 120) is guided in a direction (A direction / upward direction) different from the predetermined direction (X direction / horizontal direction), the first member (display unit frame 122 / display unit 120). The first member (display unit frame 122 / display unit 120) can be easily attached to the second member (main body frame 112 / main body 110).

  The contact surface (guide contact surface 321) of the guide portion 320 that contacts the second holding portion 220 has a shape that moves away from the first member (display unit frame 122 / display unit 120) as it goes upward. The horizontal (X direction) force applied to the display unit frame 122 / display unit 120) is converted into an upward force (A direction), and the first member (display unit frame 122 / display unit 120) moves upward. Guided in (A direction).

  After the second holding part 220 gets over the guide top part 323 of the guide part 320, the display unit 120 moves downward by its own weight. Therefore, the operator does not need to apply a force to move the first member (display unit frame 122 / display unit 120) downward, and easily attaches the first member (display unit frame 122 / display unit 120) to the second member. It can be attached to (main body frame 112 / main body 110).

  At this time, there is a possibility that the second holding portion 220 and the guide back surface 322 are in contact with each other, but since the second holding portion 220 is cylindrical, there are few surfaces in contact with the guide back surface 322 and there is little friction during sliding. Therefore, the first member (display unit frame 122 / display unit 120) can be smoothly attached to the second member (main body frame 112 / main body 110).

  Further, after the engaging portion (the locking portion 310) is engaged between the first holding portion 210 and the second holding portion 220, the support portion 330 comes into contact with the second holding portion 220, so that the first member It is possible to prevent (display unit frame 122 / display unit 120) from moving downward.

  Further, since the fixing portion (lamp holder unit 130) is attached after the engaging portion (locking portion 310) is engaged between the first holding portion 210 and the second holding portion 220, the first member (display) The unit frame 122 / display unit 120) can also be prevented from moving upward, and the first member (display unit frame 122 / display unit 120) is fixed to the second member (main body frame 112 / main body 110). .

Since the display unit 120 is attached to the main body 110 by such a slide structure, it is not necessary to elastically deform the main body 110 or the display unit 120 and can be easily attached and detached.
Moreover, it is not necessary to apply a force that slides the display unit 120 in the vertical direction, but the mounting operation is easy.

In this example, there are four second engaging portions 111 and four first engaging portions 121, but the number of the second engaging portions 111 and the first engaging portions 121 may be larger. , It may be less.
However, in order to prevent the display unit 120 from shifting in the left-right direction, it is preferable that there is at least one second engaging portion 111 and one first engaging portion 121 on the left and right.

FIG. 6 is a view showing a modified example of the mounting structure in this embodiment.
This figure is a projection view a of the display unit 120 viewed from the direction opposite to the X direction (right half is omitted because of left-right symmetry), and an enlarged perspective view b in which the portion of the first engagement portion 121 of the display unit 120 is enlarged. , A projection view c of the main body 110 viewed from the X direction (the left half is omitted because of left-right symmetry), an enlarged perspective view d of the second engagement portion 111 of the main body 110, and a first engagement of the display unit 120 It is PP sectional drawing e which looked at the mode that the joint part 121 and the 2nd engaging part 111 of the main body 110 engaged from the Y direction.

  As described above, when there are a plurality of second engaging portions 111 and a plurality of first engaging portions 121, the plurality of second engaging portions 111 and the plurality of first engaging portions 121 correspond to the corresponding second engaging portions 111. As long as the first engagement portion 121 and the first engagement portion 121 can be engaged with each other, they need not have the same shape (or a mirror image thereof).

The first engaging part 121a is a point in which the second holding part 220 is positioned on the upper end side (front side when viewed from the Z direction) of the holding support part 230, and the shape of the second holding part 220 is a combination of a square pole and a cylinder. The difference is the shape.
The first engagement part 121b is rounded by the fact that the second holding part 220 is positioned in the middle, not the upper end side or the lower end side of the holding support part 230, and the shape of the second holding part 220 fillets one side of the quadrangular prism. The difference is that it has a shape with a

Thus, the positional relationship between the holding support portion 230 and the second holding portion 220 is different as long as the holding support portion 230 is in a position that does not interfere with the engagement of the first engagement portion 121 and the second engagement portion 111. May be.
Further, the shape of the second holding part 220 is not limited to a cylinder, but may be other shapes.

The second engaging portion 111a is different in that the supporting portion 330 is not provided.
In this example, the second engagement portion 111b has a support portion 330 and prevents the display unit 120 from moving below a predetermined position. Therefore, the second engagement portion 111a does not have the support portion 330. Also good.

The second engaging portion 111b is different in that there is no inclined guide contact surface 321 and the locking portion 310 having no function of guiding the display unit 120 is long instead.
Since the second engaging portion 111a has the guide portion 320 and guides the display unit 120 in the upward direction, the second engaging portion 111b may not have the guide portion 320.

FIG. 7 is a view showing another modified example of the mounting structure in this embodiment.
This figure is a projection view a of the display unit 120 viewed from the direction opposite to the X direction (right half is omitted because of left-right symmetry), and an enlarged perspective view b in which the portion of the first engagement portion 121 of the display unit 120 is enlarged. , A projection view c of the main body 110 viewed from the X direction (the left half is omitted because of left-right symmetry), an enlarged perspective view d of the second engagement portion 111 of the main body 110, and a first engagement of the display unit 120 It is PP sectional drawing e which looked at the mode that the joint part 121 and the 2nd engaging part 111 of the main body 110 engaged from the Y direction.

As for the 1st engaging part 121c, the 2nd holding | maintenance part 220 is a shape which combined the quarter cylinder and the square pillar, and is long in an up-down direction. Further, the difference is that the holding support portion 230 is not only on the side of the second holding portion 220 but also on the upper side.
The first engagement portion 121d is different in that the holding support portion 230 is not only on one side of the second holding portion 220 but also on both sides, and supports the second holding portion 220 from the left and right.

As described above, the holding support portion 230 supports the second holding portion 220 not only from one side surface but also from the side surface and the upper surface or both side surfaces, thereby preventing the first engaging portion 121 from being deformed. Thereby, the engagement with the second engagement portion 111 is ensured.
In addition, since the second holding portion 220 is long in the vertical direction, the holding contact surface 221 that comes into contact with the locking portion 310 is widened, and further, stress can be dispersed.

The second engagement portion 111c is different in that the guide contact surface 321 of the guide portion 320 is long in the vertical direction, the guide top portion 323 of the guide portion 320 is flat, and the support portion 330 is formed.
When the display unit 120 is attached to the main body 110 due to the fact that the guide abutting surface 321 is long in the vertical direction, the second engaging portion 111c can be provided even if the position of the display unit 120 is greatly deviated from the position of the main body 110. The display unit 120 is guided by the action of 320 and can be correctly attached.
Further, the second engaging portion 111c engages with the first engaging portion 121 having the holding support portion 230 on the upper side of the second holding portion 220 like the first engaging portion 121c, whereby the guide portion 320 is engaged. The support portion 330 formed on the guide top portion 323 contacts the holding support portion 230 and prevents the display unit 120 from moving below a predetermined position.

The second engaging portion 111d is different from the second engaging portion 111d in that it protrudes not from the side surface of the main body frame 112 but from the inside of the bottom surface (the back surface as viewed from the Z direction).
The second engagement portion 111d protrudes from the inside of the bottom surface of the main body frame 112, so that the first engagement portion has a holding support portion 230 that supports the second holding portion 220 from both the left and right sides like the first engagement portion 121d. It can be engaged with the joint part 121.
In addition, the inside of the main body frame 112 around the second engagement portion 111d abuts on the holding support portion 230 and the second holding portion 220 of the second engagement portion 111d and functions as the support portion 330.

As described above, the support unit 330 may be configured to prevent the display unit 120 from moving below a predetermined position by coming into contact with a portion other than the second holding unit 220 of the display unit frame 122.
Moreover, the structure other than the second engagement portion 111 of the main body frame 112 may serve as the support portion 330.

FIG. 8 is a view showing still another modified example of the mounting structure in this embodiment.
This figure is a projection view a of the display unit 120 viewed from the direction opposite to the X direction (right half is omitted because of left-right symmetry), and an enlarged perspective view b in which the portion of the first engagement portion 121 of the display unit 120 is enlarged. , A projection view c of the main body 110 viewed from the X direction (the left half is omitted because of left-right symmetry), an enlarged perspective view d of the second engagement portion 111 of the main body 110, and a first engagement of the display unit 120 It is PP sectional drawing e which looked at the mode that the joint part 121 and the 2nd engaging part 111 of the main body 110 engaged from the Y direction (The main body frame 112 of the near side is abbreviate | omitted so that the mode of engagement can be seen). .

The first engaging portion 121e has a shape in which the second holding portion 220 is a combination of a quarter circle and a quadrangular prism, and is long in the vertical direction.
The first engaging portion 121f is located substantially at the center of the left and right sides of the display unit frame 122, the second holding portion 220 has a downward cylindrical shape, and the holding support portion 230 is on the upper bottom surface side of the second holding portion 220.

  Thus, the position of the first engagement portion 121 may not be near the side of the display unit frame 122.

The second engagement portion 111e is different in that the guide contact surface 321 of the guide portion 320 is not flat but rounded.
Thus, the guide contact surface 321 does not need to be a flat surface.
Increasing the length of the guide contact surface 321 in the vertical direction is advantageous in that the guide unit 320 works even when the display unit 120 is attached to the main body 110 even if the position of the display unit 120 is large. Since the angle of the contact surface 321 with respect to the vertical surface becomes small, the efficiency of converting the horizontal force into the upward force is deteriorated. Therefore, when the guide contact surface 321 is curved and the position of the display unit 120 is small, the angle of the guide contact surface 321 with respect to the vertical surface is large, and the horizontal force is converted into an upward force. Efficiency can be improved.

The second engaging portion 111f is positioned substantially at the center of the left and right sides of the bottom surface of the main body frame 112 and has a horseshoe shape with a notch provided at the center of the rectangular parallelepiped. The second holding portion 220 of the first engagement portion 121f engages with the notched portion. Further, the upper surface of the second engagement portion 111f is flat, and abuts on the holding support portion 230 of the first engagement portion 121f to work as the support portion 330.
Note that the second engagement portion 111f in this example does not include the guide portion 320, but may include the guide portion 320.

As described above, the attachment structure in this embodiment can attach the display unit 120 to the main body 110 without deforming the second engagement portion 111 and the first engagement portion 121. The joining part 111 and the first engaging part 121 are not damaged.
Moreover, if the number of the second engaging portions 111 and the first engaging portions 121 is four or more, stable attachment can be achieved. Further, distortion such as warpage of the display unit frame 122 can be prevented.

Embodiment 2. FIG.
The second embodiment will be described with reference to FIGS.

FIG. 9 is an exploded perspective view showing the configuration of the guide light 100 in this embodiment.
In addition, about the part which is common with the guide light 100 demonstrated in Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted here.
Further, in this figure, the components inside the display unit frame 122 such as the terminal block 140, the battery 150, the lighting device 160, and the lamp holder unit 130 are omitted.

The main body frame 112 has a shape in which the front and back surfaces (front side and back side as viewed from the X direction) of the rectangular parallelepiped are opened.
Components to be attached to the inside of the main body frame 112 such as the terminal block 140, the battery 150, and the lighting device 160 are the side surface of the main body frame 112 (front side or rear side when viewed from the Y direction), bottom surface (back side when viewed from the Z direction), or upper surface ( Install it on the front side as viewed from the Z direction.

  The guide light 100 is a double-sided lamp type guide light including two display units 120. The two display units 120 have the same configuration, and one is attached to the front surface of the main body frame 112 and the other is attached to the rear surface of the main body frame 112. Although the two display units 120 may have different configurations, it is preferable that the two display units 120 have the same configuration because the productivity is improved.

Since the main body frame 112 is open on both the front and back surfaces, the heat generated by the lighting of the light source built in the lamp holder unit 130 attached to the upper part of the display unit 120 is made uniform by air convection inside the main body frame 112. To do. Thereby, the thermal conditions of the front-side lamp holder unit 130 and the rear-side lamp holder unit 130 are the same.
For example, when the light source built in the lamp holder unit 130 is an LED, the thermal condition greatly affects the life of the LED. If there is a back plate that closes the back of the main body frame, the back plate becomes an element that blocks heat, whereas the main body frame 112 opens both the front and the back, so that the two lamp holder units 130 have substantially the same conditions. The heat of the light source incorporated in the lamp holder unit 130 is extended and becomes substantially equal.

The main body 110 has four second engaging portions 111g and four second engaging portions 111h.
The second engaging portion 111g protrudes from the inside of the side surface of the main body frame 112. Although not shown in the drawing, the two second engaging portions are located on the inner side of the front side when viewed from the Y direction and symmetrically with the second engaging portion 111g on the inner side of the rear side when viewed from the Y direction. There are 111g.
The second engaging portion 111 h protrudes from the inside of the side surface of the main body frame 112. The second engaging portion 111 h is positioned at the bottom of the inner side surface of the main body frame 112 and is in contact with the bottom surface of the main body frame 112. Although not shown in the drawing, the two second engaging portions are located on the inner side of the front side when viewed from the Y direction and symmetrically with the second engaging portion 111h on the inner side of the rear side when viewed from the Y direction. There is 111h.

The display unit 120 includes two first engaging portions 121g, two first engaging portions 121h, and a light shielding protrusion 125.
The first engaging portion 121g and the first engaging portion 121h protrude from the back surface of the display unit frame 122. The first engagement portion 121g is at a position corresponding to the second engagement portion 111g, and the first engagement portion 121h is at a position corresponding to the second engagement portion 111h.
The light shielding protrusion 125 protrudes from the back surface of the display unit frame 122. The light shielding protrusion 125 has a frame shape excluding the upward direction along the shape of the back surface of the display unit frame 122.
The light shielding protrusion 125 is slightly smaller than the back surface of the display unit frame 122 and, when attached to the main body 110, just engages with the open opening of the main body frame 112.
The light blocking protrusion 125 blocks light leaking from the light source built in the lamp holder unit 130 into the main body frame 112 from leaking to the outside.
Further, the light shielding protrusion 125 also serves to reinforce the display unit 120. For example, when the display unit frame 122 is made of resin, the display unit frame 122 may be warped due to distortion of the resin, but the presence of the light-shielding protrusion 125 can prevent the warp.

The first engagement portion 121g has the same shape as the first engagement portion 121 described with reference to FIG. 2 in the first embodiment, but is upside down, and the second holding portion 220 is the holding support portion 230. It differs in that it is located along the top edge of the.
The first engagement portion 121h has substantially the same shape as the first engagement portion 121g, except that the side surface of the holding support portion 230 is inclined. This angle is equal to the inclination of the guide contact surface 321 of the second engaging portion 111h.

FIG. 10 is a schematic cross-sectional view showing a state when the display unit 120 is attached to the main body 110 in this embodiment.
This figure shows the second engagement portion 111g and the second engagement portion 111h, the first engagement portion 121g and the first engagement located on the right side (front side as viewed from the Y direction) when viewed from the front (X direction). The part 121h is shown as seen from the Y direction.

An operator brings the display unit 120 closer to the main body 110 already attached to the ceiling surface from the X direction (first direction).
When the positional deviation of the display unit 120 is large, before the holding contact surface 221 of the second holding unit 220 and the guide contact surface 321 of the guide unit 320 contact each other, the side surface 231 of the holding support unit 230 and the body frame 112, the main body frame bottom front surface 341 contacts.
The side surface 231 of the holding support portion 230 is inclined in a direction away from the main body 110 as it goes downward. For this reason, the horizontal force that the operator applies to the display unit 120 due to the stress that the side surface 231 receives from the main body frame bottom front surface 341 is converted into a diagonally upward force. Move in the direction (second direction).
Thereby, the position shift of the display unit 120 is reduced, and the holding contact surface 221 of the second holding unit 220 and the guide contact surface 321 of the guide unit 320 come into contact with each other.
The inclination of the guide contact surface 321 and the inclination of the side surface 231 of the holding support portion 230 are the same. Accordingly, the display unit 120 further moves in the A direction.

When the second holding part 220 reaches the guide top part 323 of the guide part 320, the stress disappears and the display unit 120 moves in the B direction. At this time, the display unit 120 is located at the top. The upper surface 243 of the display unit frame 122 is configured not to protrude above the upper surface 343 of the main body frame 112. Thereby, the display unit frame 122 is not caught on the ceiling surface to which the main body 110 is attached.
Further, the upper surface 251 of the light shielding protrusion 125 is configured not to contact the upper front surface 342 of the main body frame 112.
Thereby, since it is not necessary to elastically deform the display unit 120, the display unit 120 can be smoothly attached to the main body 110, and the display unit 120 is not damaged.

  Thereafter, the display unit 120 moves in the C direction (third direction). The display unit 120 is fixed by the bottom surface of the holding support unit 230 coming into contact with the inside of the bottom surface of the main body frame 112.

  The lamp holder unit 130 is attached so that the display unit 120 does not move upward, and the portion without the light shielding protrusion 125 is blocked to prevent light from leaking.

  The display unit 120 on the back side is attached in the same procedure.

  When attaching the display unit 120 to the main body 110, the operator may bring the display unit 120 close to the main body 110 so that the side surface 231 of the holding support portion 230 contacts the bottom front surface 341 of the main body frame 112. Since this operation is easier than bringing the second holding part 220 into contact with the guide contact surface 321, the display unit 120 can be easily attached.

  The side surface 231 of the holding support portion 230 of the first engagement portion 121h is shaped so as to move away from the second member (main body frame 112 / main body 110) as it goes down, so that the side surface 231 contacts the bottom front surface 341, and the first When a force in the horizontal direction (X direction) is applied to the member (display unit frame 122 / display unit 120), the first member (display unit frame 122 / display unit 120) is guided upward (A direction).

  The shapes of the first engaging portion 121 and the second engaging portion 111 may be the shapes described in the first embodiment (as a modification).

  Since the display unit 120 has the light shielding protrusion 125 protruding on the back surface, it is possible to prevent light from leaking from the gap between the main body 110 and the display unit 120 and to prevent the display unit 120 from warping. In addition, since the light-shielding protrusion 125 is just engaged with the opened opening of the main body frame 112, the warp of the main body frame 112 can be corrected.

Embodiment 3 FIG.
A third embodiment will be described with reference to FIGS.
Note that portions common to those described in Embodiments 1 and 2 are denoted by the same reference numerals, and description thereof is omitted here.

FIG. 11 is an overall perspective view showing the appearance of the guide light 100 in this embodiment.
The guide light 100 is a double-sided lamp as in the second embodiment, and has two display units 120 and 130, respectively.
In addition, the guide light 100 has a mounting bracket 190.
The mounting bracket 190 is a bracket for mounting the guide light 100 to the ceiling surface. The mounting bracket 190 has a power line insertion hole 193. The power supply line insertion hole 193 is provided at a position corresponding to the power supply line insertion hole 113 provided on the upper surface of the main body 110. The power supply line drawn out from the hole provided on the ceiling surface is the power supply line insertion hole 193 and It is drawn into the main body 110 through the power line insertion hole 113.

FIG. 12 is an exploded perspective view showing the internal structure of the guide light 100 in this embodiment.
The main body 110 includes a main body frame 112, a terminal block 140, a battery 150, a lighting device 160, and an inspection switch 170.
The main body frame 112 has a frame shape in which a front surface (front surface when viewed from the X direction) and a rear surface (surface on the rear side when viewed from the X direction) of the rectangular parallelepiped are opened. It has a space for storing electrical parts such as the device 160 and the inspection switch 170.
The inspection switch 170 is a button switch for checking whether or not the guide light 100 can be normally lit, and an LED for displaying the state of the guide light 100 (for example, the charging state of the battery 150 or the state of the lamp). It is an electrical component that contains

The mounting bracket 190 has a bracket projection 194. The metal projection 194 has a cylindrical shape and protrudes to the lower side of the attachment metal 190 (the back side when viewed from the Z direction). The metal projection 194 is male threaded on the outer periphery. The metal projections 194 are provided at positions corresponding to the metal attachment holes 115 provided on both sides of the attachment power supply line insertion hole 113 on the upper surface of the main body frame 112 (the surface on the near side when viewed from the Z direction).
The metal fitting fixing part 195 is a hollow cylindrical part, and a female screw is cut inside. The female screw of the metal fitting fixing portion 195 engages with the male screw of the metal fitting convex portion 194.
When fixing the main body 110 to the ceiling surface, first, the mounting bracket 190 is fixed to the ceiling surface. Next, the metal body projection 112 is passed through the metal fitting mounting hole 115 of the main body frame 112, and the main body frame 112 is fixed by engaging and fixing the metal fitting fixing portion 195 to the metal fitting projection 194.

  The main body frame 112 has eight second engaging portions 111i. There are four second engaging portions 111i on the inner surface (front surface when viewed from the Y direction) on the inner side (front surface when viewed from the Y direction) of the left side portion (the rear side portion when viewed from the Y direction) of the main body frame 112. Four are provided on the inner surface (the front surface as viewed from the Y direction) of the portion on the near side as viewed. Of the four second engaging portions 111i provided on the left side of the main body frame 112, two are on the front side (front side when viewed from the X direction), and two are on the rear side (back side when viewed from the X direction). Is provided. The second engaging portion 111i on the right side of the body frame 112 is provided symmetrically with the left side. Of the two second engaging portions 111i provided on the front side of the left side of the main body frame 112, one is on the upper side (front side when viewed from the Z direction), and one is on the lower side (back when viewed from the Z direction). Side). The second engaging portion 111i on the rear side of the main body frame 112 is provided symmetrically with the front side. The second engaging portion 111 i protrudes inward from the inner surface of the main body frame 112.

  The main body frame 112 has four main body engaging portions 118. Two main body engaging portions 118 are provided on the inner surface of the left side portion of the main body frame 112 and two are provided on the inner surface of the right side portion. Of the two main body engaging portions 118 provided on the left side portion of the main body frame 112, one is provided on the front upper side, and one is provided on the rear upper side. The main body engaging portion 118 on the right side of the main body frame 112 is provided symmetrically with the left side portion. The main body engaging portion 118 has a shape in which the inner surface of the main body frame 112 is slightly depressed.

The display unit 120 includes a display unit frame 122, a display plate 123, a light guide plate 124, and a reflection plate 129.
The light guide plate 124 is not visible, but is inside the display plate 123.
The display unit frame 122 is a generally katakana U-shaped frame, and the left and right sides (back side and front side as viewed from the Y direction) and lower side (Z of the display plate 123, the light guide plate 124, and the reflection plate 129). Cover the three directions on the back side when viewed from the direction.
The reflection plate 129 has a flat plate shape, is positioned on the rear side of the light guide plate 124, and has an angle with respect to the display plate 123 and the light guide plate 124. The reflection plate 129 reflects light incident from above the display unit 120 and causes the light to enter the light guide plate 124 positioned in front of the reflection plate 129.

The display unit 120 has four first engaging portions 121i. One first engagement portion 121i is provided at each of the four corners of the rear surface of the display unit frame 122 (in the display unit 120 on the near side when viewed from the X direction, the back surface when viewed from the X direction). The first engaging portion 121 i protrudes from the back surface of the display unit frame 122. When the display unit 120 is attached to the main body 110, the first engagement portion 121 i is provided at a position where the first engagement portion 121 i is engaged with the second engagement portion 111 i of the main body 110.
Further, the display unit 120 has two display unit engaging portions 128. The display unit engaging portion 128 is located near the upper end of the left surface and the right surface of the display unit frame 122.

  The lamp holder unit 130 has two third engaging portions 131. The third engaging portion 131 is located at the left end and the right end of the rear surface of the lamp holder unit 130 (in the front lamp holder unit 130 viewed from the X direction, the rear surface viewed from the X direction). Projecting from the back of the unit 130. The third engaging portion 131 has a shape that engages with the main body engaging portion 118. When the lamp holder unit 130 is attached to the main body 110, the third engaging portion 131 engages with the main body engaging portion 118. As a result, the lamp holder unit 130 is fixed to the main body 110.

  The lamp holder unit 130 has two lamp holder engaging portions 132. The lamp holder engaging portion 132 is located inside each of the left side surface and the right side surface of the lamp holder unit 130. The lamp holder engaging portion 132 has a shape that engages with the display unit engaging portion 128. When the display unit 120 and the lamp holder unit 130 are attached to the main body 110, the lamp holder engaging portion 132 is engaged with the display unit. The display unit 120 and the lamp holder unit 130 are fixed by engaging with the portion 128.

FIG. 13 is a diagram showing details of the shapes of the main body 110, the display unit 120, and the lamp holder unit 130 in this embodiment.
This figure is a partially enlarged view a of the main body 110 (electrical components omitted) viewed from the X direction, and a sectional view b of the main body 110 viewed from the EE cross section b (imaginary lines, the display unit 120 and the lamp holder. The state of engagement with the unit 130 is illustrated), and a side view c of the display unit 120 and the lamp holder unit 130 viewed from the Y direction.

  The space inside the main body 110 is partitioned by a partition plate 116 and a back plate 114 into a plurality of spaces such as a terminal block storage unit 440, a battery storage unit 450, a lighting circuit storage unit 460, and an inspection switch storage unit 470. The terminal block storage 440 is a space for mounting the terminal block 140. The battery storage unit 450 is a space for mounting the battery 150. The lighting circuit storage unit 460 is a space for mounting the lighting device 160. The inspection switch storage portion 470 is a space for mounting the inspection switch 170.

The second engaging portion 111i has substantially the same shape as the second engaging portion 111 described in the first embodiment, but is the same as the second engaging portion 111c described in the first embodiment. The difference is that is flat.
The second engaging portion 111 i located on the lower side is in contact with the bottom surface of the main body frame 112 and uses the bottom surface of the main body frame 112 as the support portion 330.

The bottom surface of the main body frame 112 has a lower surface protruding portion 491 that protrudes in the front-rear direction (the X direction and the opposite direction).
At the lower end of the display unit frame 122, there is an engagement recess 127 that is recessed in a shape corresponding to the lower surface protrusion 491.
When the display unit 120 is attached to the main body 110, the engaging recess 127 is engaged with the lower surface protruding portion 491. This functions as one mechanism for preventing the display unit 120 from moving downward from the mounting position.

  The first engagement portion 121i has substantially the same shape as the first engagement portion 121 described in the first embodiment, but protrudes from the upper end of the holding support portion 230 in substantially the same direction as the second holding portion 220. The difference is that there is a collar 235.

  When the display unit 120 is attached to the main body 110, the flange portion 235 is shaped to cover the second engaging portion 111i, abuts against the flat guide top 323, and the display unit 120 is below the attachment position. It functions as one of the mechanisms that prevents it from moving in the direction. In addition, as shown in this figure, the display unit 120 is not moved downward, such as when the flange 235 and the guide top 323 are not normally in contact with each other and the display unit 120 is not correctly attached. It is good also as giving the role as a safety device in case this mechanism does not function.

The main body engaging portion 118 has a shape in which the inside of the side surface of the main body frame 112 is slightly recessed.
The main body engaging recess 495 occupies most of the main body engaging portion 118 and has a substantially rectangular shape with a flat bottom.
The main body engaging convex portion 496 is a belt-like shape positioned at the outer end of the main body engaging portion 118, and the depth of the recess is shallower than the main body engaging concave portion 495, and protrudes inward from the main body engaging concave portion 495. Yes.
The third engaging portion 131 has a tongue shape protruding from the back surface of the lamp holder unit 130, and has a tip portion 411, a convex portion 412, and a concave portion 413.
The distal end portion 411 is located at the distal end of the third engagement portion 131 and becomes thinner toward the distal end. The tip 411 is slightly inclined inward with respect to the X direction. This is because the third engaging portion 131 can be easily engaged with the main body engaging portion 118.
The third engagement convex portion 412 is located near the base of the third engagement portion 131 and protrudes outward.
The third engagement recess 413 is located at the base of the third engagement portion 131 and is recessed from the third engagement projection 412.
When the lamp holder unit 130 is attached to the main body 110, the third engagement convex portion 412 engages with the main body engagement concave portion 495, the third engagement concave portion 413 engages with the main body engagement convex portion 496, and the third engagement convex portion. Since 412 and the main body engaging convex portion 496 abut, the lamp holder unit 130 is fixed to the main body 110.

The display unit engagement portion 128 has a display engagement recess 481 and a display engagement protrusion 482. The display engagement recess 481 has a slit shape in which the side surface of the display unit frame 122 is slightly depressed. The display engagement convex portion 482 is a substantially rectangular protrusion positioned in front of the display engagement concave portion 481.
The lamp holder engaging part 132 has a lamp engaging convex part 422 and a lamp engaging pressing part 424.
The lamp engagement convex portion 422 and the lamp engagement pressing portion 424 are protrusions that protrude inward from the inside of the side surface of the lamp holder unit 130. A tapered portion 421 is formed outside the convex portion 422. This is because the lamp holder engaging portion 132 can be easily engaged with the display unit engaging portion 128. The lamp engaging convex part 422 and the lamp engaging pressing part 424 are formed side by side in the X direction, and the gap part 423 that does not protrude between the lamp engaging convex part 422 and the lamp engaging pressing part 424 is formed. There is.
When the lamp holder unit 130 is attached to the main body 110 to which the display unit 120 is attached, the lamp engaging convex portion 422 is engaged with the display engaging concave portion 481 and the gap portion 423 is engaged with the display engaging convex portion 482, and the lamp holder unit. 130 is fixed to the display unit 120. Since the lamp holder unit 130 is fixed to the main body 110 by the engagement of the main body engaging portion 118 and the third engaging portion 131, this prevents the display unit 120 from moving upward and coming off. Can do.

As described above, by providing a plurality of mechanisms for preventing the display unit 120 from moving downward, it is possible to prevent the display unit 120 from being accidentally dropped, thereby increasing safety.
Further, by providing a mechanism for fixing the main body 110 and the display unit 120, the main body 110 and the lamp holder unit 130, and the display unit 120 and the lamp holder unit 130, respectively, the display unit 120 and the lamp holder unit are fixed to each other. 130 can be securely attached to the body 110.

Embodiment 4 FIG.
The fourth embodiment will be described with reference to FIGS.

FIG. 14 is an exploded perspective view showing the internal structure of the guide light 100 in this embodiment.
In addition, about the part which is common in the guide light 100 demonstrated in Embodiment 1- Embodiment 3, the same code | symbol is attached | subjected and description is abbreviate | omitted here.
Also, in the following description, the front side as viewed from the Z direction is “up”, the back side is “down”, the front side as viewed from the Y direction is “right”, the back side is “left”, and the back side is viewed from the X direction. The front side is called “front” and the back side is called “rear”.

The guide light 100 further includes a reinforcing bracket 180.
The reinforcing metal fitting 180 is a member for reinforcing the main body 110. The reinforcing metal fitting 180 is installed inside the upper part of the main body frame 112. If the guide lamp 100 is mounted on the ceiling surface 501 without the reinforcing bracket 180, the load is concentrated when the weight or external force of the guide lamp 100 is applied around the bracket mounting hole 115 in contact with the bracket fixing portion 195. Therefore, there is a possibility that the periphery of the bracket mounting hole 115 is broken and the guide lamp 100 is deformed. The reinforcing metal fitting 180 is made of a material having higher strength than the main body frame 112 such as metal. The reinforcing bracket 180 disperses the load over the entire upper frame of the main body frame 112 when the weight or external force of the guide light 100 is applied, and prevents the main body frame 112 from being deformed.

The main body frame 112 further has a second guide part 119.
The second guide part 119 is located inside the vicinity of the upper ends of the left and right sides of the main body frame 112 (the second guide part 119 on the right side is not shown, but is located symmetrically with the second guide part 119 on the left side). .
When the second guide portion 119 is lifted upward to remove the display unit 120, the second guide portion 119 contacts the display unit 120 to prevent the display unit 120 from being lifted upward more than necessary and This guides the user toward the front and helps the operator remove the display unit 120.

  FIG. 15 is a side view and perspective view showing the shape of the reinforcing metal fitting 180 in this embodiment.

The reinforcing metal fitting 180 is a substantially rectangular plate that is long in the Y direction in accordance with the shape of the upper portion of the main body frame 112.
A side portion of the reinforcing metal fitting 180 is bent downward to form a bent portion 181. The bent portion 181 is for preventing the reinforcing metal fitting 180 from being bent by a load. The bent portion 181 may be bent upward, but since the load is dispersed when the contact area between the reinforcing bracket 180 and the main body frame 112 is wider, the bent portion 181 is preferably bent downward. .

Several holes are made on the axis of symmetry of the reinforcing metal fitting 180.
The pair of main body fixing holes 182 are through holes for fixing the reinforcing metal fitting 180 to the main body frame 112 with screws or the like, and are provided at positions close to the left and right ends.
The metal fitting mounting hole 183 is a keyhole-shaped through-hole in which a circle 187 having a large radius and a circle 186 having a small radius are combined, and is provided next to the left paired body fixing hole 182. Of the bracket mounting hole 183, the portion of the circle 187 having a large radius has a radius larger than the radius of the bracket fixing portion 195 so that one of the two bracket fixing portions 195 of the mounting bracket 190 can pass through. The portion of the circle 186 having a small radius has a radius smaller than the radius of the metal fitting fixing portion 195 so that the metal fitting fixing portion 195 is caught. An operator passes the bracket mounting hole 183 while the bracket fixing portion 195 is loosely attached to the mounting bracket 190, and shifts the reinforcing bracket 180 (the entire main body 110 to which the bracket is mounted) to the side, thereby mounting the bracket mounting hole 183. After hooking the metal fitting fixing part 195, the metal fitting fixing part 195 is tightened to fix the main body 110 to the ceiling surface 501 or the like.

The power line insertion hole 184 is a through hole having a shape in which an ellipse 188 having a larger radius is combined with the metal fitting mounting hole 183, and is provided substantially at the center of the reinforcing metal fitting 180. The portion of the ellipse 188 having the largest radius among the power supply line insertion holes 184 is provided at a position corresponding to the power supply line insertion hole 113 of the main body frame 112 and the power supply line insertion hole 193 of the mounting bracket 190. A power line drawn from a hole or the like provided on the ceiling surface is drawn into the main body 110 through the power line insertion hole 193, the power line insertion hole 113, and the power line insertion hole 184.
A portion of the power supply line insertion hole 184 having the same shape as the metal fitting attachment hole 183 is for fixing through the other metal fitting fixing portion 195 of the attachment metal fitting 190.
The power supply line insertion hole 184 may have two holes, with a hole portion for allowing the power supply line to pass therethrough and a hole portion for allowing the metal fitting fixing portion 195 to pass therethrough.

  The notch 185 is a notch provided near the center of both ends of the reinforcing metal fitting 180. The cut portion 185 is provided in accordance with the shape of the main body frame 112.

FIG. 16 is a perspective view showing a positional relationship when the reinforcing metal fitting 180 is attached to the main body frame 112 in this embodiment.
The main body fixing hole 182, the metal fitting mounting hole 183, and the power line insertion hole 184 are at positions corresponding to the holes provided in the upper part of the main body frame 112. The notch 185 corresponds to the triangular reinforcing part 117 provided to reinforce the main body frame 112 so that the reinforcing metal fitting 180 does not hit the triangular reinforcing part 117.

FIG. 17 is a partially enlarged cross-sectional perspective view showing a state in which the reinforcing bracket 180 and the mounting bracket 190 are attached to the main body frame 112 in this embodiment.
This figure is an enlarged cabinet view of the upper left corner of the main body frame 112.

The second guide part 119 is a columnar body that protrudes inward from the upper end of the left and right side surfaces of the main body frame 112.
The second guide portion 119 has a second contact surface 391 formed by cutting off the front diagonally lower portion and the rear diagonally lower portion in an arc shape.
The second contact surface 391 on the front side is directed obliquely downward in the front direction, and is lowered as it goes downward. Conversely, the rear second abutting surface 391 is directed obliquely downward in the rear, and is lowered forward as it goes down. In a state where the display unit 120 is attached to the main body frame 112, any second contact surface 391 is shaped to move away from the display unit 120 as it goes down.

  As described above, the second guide portion 119 is located near the upper end on the inner side of the left and right side surfaces of the main body frame 112. The second contact surface 391 is located below the bent portion 181 of the reinforcing metal fitting 180 in a state where the reinforcing metal fitting 180 is attached to the main body frame 112.

  FIG. 18 is a cross-sectional side view showing a state where the display unit 120 and the lamp holder unit 130 are attached to the main body frame 112 in this embodiment.

When the operator brings the display unit 120 (first member) closer to the main body frame 112 (second member) from the X direction (first direction), the holding contact surface 221 contacts the guide contact surface 321 and displays. The unit 120 is guided in the A direction (second direction). When the display unit 120 is further moved closer to the main body frame 112, the second holding unit 220 gets over the guide unit 320, and the display unit 120 can be moved in the C direction (third direction). The display unit 120 is fixed to the main body frame 112 by being sandwiched between 220 and the display unit frame 122 (first holding unit).
Thereafter, when the operator brings the lamp holder unit 130 (fixed portion) closer to the main body frame 112 from the X direction, the third engaging portion 131 and the main body engaging portion 118 are engaged, and the lamp holder unit 130 is moved to the main body frame. It is fixed to the frame 112. As a result, the display unit 120 does not move in the D direction (the direction opposite to the C direction).

  FIG. 19 is an enlarged cross-sectional view in side view showing a state in which the lamp holder unit 130 and the display unit 120 are removed from the main body frame 112 in this embodiment.

When it becomes necessary to remove the display unit 120 from the main body frame 112 for maintenance inspection or repair, the operator first pulls the lamp holder unit 130 toward the front (E direction) to connect the third engagement portion 131 and the main body. The engagement with the engagement portion 118 is disengaged, and the lamp holder unit 130 is moved in the E direction and removed.
Next, the operator lifts the display unit 120 upward (D direction) to disengage the second holding part 220 from the second engaging part 111.
Even if the second holding part 220 and the second engaging part 111 are disengaged, if the operator continues to move the display unit 120 upward, the second contact surface 391 comes into contact with the collar part 235 and the display The unit 120 is guided in the G direction (a direction generally opposite to the first direction).
The operator senses that the display unit 120 is guided in the G direction, pulls the display unit 120 forward (E direction), and removes the display unit 120 from the main body frame 112.

  If the operator lifts the display unit 120 too much, the display unit 120 may be caught by the reinforcing bracket 180 and may hinder the work of removing the display unit 120. However, since the second contact surface 391 guides the display unit 120 in the G direction to prevent the operator from lifting the display unit 120 too much, the display unit 120 can be displayed smoothly without being caught by the reinforcing bracket 180. Unit 120 can be removed.

FIG. 20 is a view showing a modification of the shape of the second guide portion 119 in this embodiment.
As shown in the second guide portions 119a, 119b, 119e, 119g, and 119h, the second contact surface 391 may have a planar shape instead of an arc surface shape.
Further, the surface of the second guide portion 119 other than the second contact surface 391 may have any shape. Since a large force is not applied to the second guide portion 119, the second guide portion 119 may have a plate shape as shown in the second guide portions 119b, 119c, 119e, 119f, 119h, and 119i. Then, since the material of the main body frame 112 can be reduced, the main body frame 112 can be reduced in weight, and the manufacturing cost of the guide light 100 can be suppressed.
Further, as shown in the second guide portions 119e and 119f, the front second contact surface 391 and the rear second contact surface 391 may be separated from each other.

  Furthermore, the second guide part 119 in this embodiment can also be applied to a single-sided lamp. When applied to a single-sided lamp, as shown in the second guide portions 119d, 119g, 119h, and 119i, the second contact surface 391 only needs to be on the front side of the second guide portion 119. The shape on the back side does not matter. Further, the second contact surface 391 only needs to be below the front bent portion 181, and the rear bent portion 181 of the reinforcing bracket 180 may be below the second contact surface 391.

  According to the guide light 100 (illumination device) in this embodiment, the engagement member (the locking portion 310) is engaged between the first holding portion 210 and the second holding portion 220, so that the first member When the (display unit 120) is moved in the direction (D direction) opposite to the third direction (C direction), the second guide portion 119 contacts the first member (display unit 120), and the first member Is guided in a direction (G direction) substantially opposite to the first direction (B direction), so that the operator can smoothly remove the first member.

  According to the guide light 100 (illumination device) described above, the display unit 120 slides while engaging with the guide wall (second guide portion 119), and thus does not contact the reinforcing bracket 180 without contacting the fixture metal body (main body frame 112). ). Since the upper part (ceiling mounting surface side) of the display unit 120 does not contact the reinforcing bracket 180, the display unit 120 can be easily attached and detached.

  As described above, the guide wall (second guide portion 119) having a shape in which one or more rectangular corners are formed in a fan shape inside the frame portion (main body frame 112) is slid to remove the display unit 120. When this is done, the display unit 120 abuts against the guide wall (second guide portion 119), so that contact with the reinforcing bracket 180 can be avoided, and removal is facilitated.

  DESCRIPTION OF SYMBOLS 100 Guide light, 110 Main body, 111 2nd engaging part, 112 Main body frame, 113,193 Power supply line insertion hole, 114 Back plate, 115 Metal fitting mounting hole, 116 Partition plate, 117 Triangular reinforcement part, 118 Main body engaging part 119 Second guide portion, 120 display unit, 121 first engagement portion, 122 display unit frame, 123 display plate, 124 light guide plate, 125 light-shielding protrusion, 127 engagement recess, 128 display unit engagement portion, 129 reflection Plate, 130 Lamp holder unit, 131 Third engaging part, 132 Lamp holder engaging part, 140 Terminal block, 150 Battery, 160 Lighting device, 170 Inspection switch, 180 Reinforcing bracket, 181 Bent part, 182 Pair fixing hole , 183 bracket mounting hole, 184 power line insertion hole, 185 notch, 190 mounting bracket, 194 convex Part, 195 bracket fixing part, 210 first holding part, 220 second holding part, 221 holding contact surface, 230 holding support part, 231 side face, 232 lower face, 235 collar part, 243, 251, 343 upper face, 310 locking , 320 guide portion, 321 guide contact surface, 322 guide back surface, 323 guide top portion, 330 support portion, 331 support surface, 341 bottom front surface, 342 top front surface, 391 second contact surface, 411 tip portion, 412 422 , 482, 496 Convex part, 413, 481, 495 Concave part, 421 Taper part, 423 Gap part, 424 Pressing part, 440 Terminal block storage part, 450 Battery storage part, 460 Lighting circuit storage part, 470 Inspection switch storage part, 491 Bottom projection, 501 Ceiling surface.

Claims (5)

In the lighting device that attaches two display units to the front and back of the box-shaped main body,
Each display unit of the above two display units is
A first holding part;
A second holding part formed at a position away from the first holding part by a predetermined distance in the first direction and having a direction substantially perpendicular to the first direction as an axis;
The main body
An engaging portion that engages between the first holding portion and the second holding portion;
When the display units of the two display units are moved toward the first direction and brought close to the main body, the second holding unit comes into contact with the first holding unit and the first holding unit A guide unit that guides each display unit of the two display units in a second direction that is substantially perpendicular to the axis of the second holding unit and that is different from the first direction so that the display unit can be engaged with the second holding unit. Have
The engaging portion is positioned in a third direction substantially opposite to the second direction with respect to the guide portion, and after the second holding portion has overcome the guide portion, each display unit of the two display units is The illuminating device, wherein the lighting device is engaged between the first holding portion and the second holding portion by moving in the third direction. Two light source units are further provided,
Each light source unit of the two light source units is configured such that each display unit of the two display units is in the second direction after the engaging portion is engaged between the first holding portion and the second holding portion. The lighting device according to claim 1, wherein the illumination device is fixed so as not to move to the light source and emits light to each display unit of the two display units.   The lighting device according to claim 1, wherein the engaging portion and the guide portion are provided so as to protrude in an opening direction side and inward direction of the main body.   The lighting device according to claim 1, wherein the second holding portion is provided so as to protrude in a side surface direction of the display unit.   The lighting device according to claim 1, wherein the third direction is a vertical direction when the main body is installed on an installation surface.

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