JP2010083403A - Indoor lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve an indoor lighting system capable of switching between a direct illumination state and an indirect illumination state. <P>SOLUTION: An outer casing 6 is configured rotatably around a light source 3, so that the relative rotational positions of an inner casing 5 and the outer casing 6 are changed, thereby capable of switching between: a state in which only an indirect illumination light Li is emitted, with a window 7a and a window 8a1 serving as indirect illumination light paths overlapping with each other and with a window 7b and a window 8b2 serving as direct illumination light paths not overlapping with each other, and a state in which only a direct illumination light Ld is emitted, with the window 7b and the window 8b2 serving as the direct illumination light paths overlapping with each other and with the window 7a and the window 8a1 serving as the indirect illumination light paths not overlapping with each other. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an indoor lighting device.

As a conventional indoor lighting device, a direct illumination window and an indirect illumination window are formed on a cover covering a light source so that a direct illumination state and an indirect illumination state can be realized simultaneously. (Patent Document 1).
JP 2007-302162 A

  However, such a conventional indoor lighting device cannot switch between a direct lighting state and an indirect lighting state.

  Then, an object of this invention is to obtain the indoor lighting apparatus which can switch a direct lighting state and an indirect lighting state.

  The present invention provides a first light-shielding body that covers a light source disposed indoors and has a plurality of first windows, and a second light-shielding body that covers the outside and has a plurality of second windows. And at least one of the second light-shielding bodies is configured to be rotatable around the light source, and the first light-shielding body and the second light-shielding body are changed to change the relative rotational positions of the first light-shielding body and the second light-shielding body. A state in which only the indirect illumination light is emitted without overlapping the first window and the second window that overlap with one window and the second window and the first window that becomes the direct illumination light path. The main feature is that only the direct illumination light is emitted without overlapping the first window and the second window that overlap the second window and the second window, and the second window overlaps. And

  According to the present invention, by relatively rotating the first light shield and the second light shield, only the first window and the second window that become the indirect illumination light path overlap with each other and the first light path that becomes the direct illumination light path. Since it is possible to switch between a state in which only one window and the second window overlap, it is possible to select a direct illumination state and an indirect illumination state when the room illumination device illuminates the room.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings. In addition, the same component is contained in the following several embodiment and modification. Therefore, the same constituent elements are given common reference numerals, and redundant description is omitted.

  (First Embodiment) FIGS. 1 to 6 show an interior lighting apparatus according to a first embodiment of the present invention. Among these, FIG. 1 is a perspective view of an indoor lighting device, FIG. 2 is an exploded perspective view of the indoor lighting device, FIG. 3 is a sectional view taken along line III-III in FIG. 1, and FIG. FIGS. 5 and 5 are views showing a state in which the second shield included in the room lighting device is rotated in the same cross section as FIG. 4, and FIG. 6 is a second view included in the room lighting device in the same cross section as FIG. It is a figure which shows the state which rotated the shield to another position.

  As shown in FIG. 4, the indoor lighting device 1 according to the present embodiment includes a light source 3 disposed at a distance from a ceiling surface 2 as a wall surface in the vehicle interior S (indoor), and an outer periphery of the light source 3. Is provided with an inner case 5 and an outer case 6 surrounding the outer periphery thereof. The inner case 5 corresponds to a first light shield, and the outer case 6 corresponds to a second light shield.

  The inner case 5 has a plurality of windows (first windows) 7 through which light from the light source 3 passes, and the outer case 6 has windows (second windows) through which light that has passed through the windows 7 of the inner case 5 passes. A plurality of windows) 8 are formed. In the present embodiment, the panel 12 made of a transparent member such as acrylic or glass is fitted in the window 8 of the outer case 6, but the transparent member or the like is not fitted in the window of the inner case 5. . Both the inner case 5 and the outer case 6 are configured so as not to transmit light from the light source 3 in portions other than the windows 7 and 8.

  The light source 3 can be composed of, for example, a fluorescent lamp, an LED, a light bulb, or the like, and is formed in a substantially cylindrical shape in this embodiment. Then, both end portions of the light source 3 are fitted into a receptacle 10 to which a harness 9 is connected, and terminals (not shown) are brought into contact with each other in the receptacle 10, so that the harness 9 and the power source such as a battery (not shown) are connected to the light source 3. The power supply is supplied through the receptacle 10. Note that the receptacle 10 is fitted to the tip end portion 11b of the substantially cylindrical protruding portion 11a provided on the support member 11, and the harness 9 is routed in the cylinder of the protruding portion 11a so that the interior lighting device 1 It is designed to be pulled out outside.

  As shown in FIGS. 2 and 3, the inner case 5 is composed of two cylindrical bodies 5L and 5R having a bottom and a substantially elliptical cylinder, but the opening edges of these cylindrical bodies 5L and 5R are abutted to each other and are formed on the opening edges. By fitting the formed concave portion 5a and convex portion 5b to each other, the both ends in the axial direction are formed in a substantially elliptic cylinder shape. At the opening edges of the cylinders 5L and 5R, a notch 5c that is elongated in the axial direction is formed at a position in the major axis direction (vertical direction in FIG. 2), and they correspond to each other when the cylinders 5L and 5R are abutted. A substantially strip-like window 7 elongated in the axial direction is formed by the cutouts 5c. Moreover, the through-hole 5e is formed in the end wall 5d used as an axial direction both ends. The inner case 5 is supported by the support member 11 by inserting the tip end portion 11b of the protruding portion 11a of the support member 11 into each through hole 5e. In the present embodiment, the inner case 5 is fixed to the support member 11.

  On the other hand, the outer case 6 is composed of two cylindrical bodies 6L and 6R having a bottom and a substantially cylindrical shape, and by joining the opening edges of these cylinders 6L and 6R to each other by welding or bonding, It is formed in a substantially cylindrical shape in which both end portions in the axial direction are closed. A plurality of notches 6a that are elongated in the axial direction are formed on the opening edges of the cylinders 6L and 6R at positions facing each other, and the notches 6a that correspond to each other when the cylinders 6L and 6R are brought into contact with each other. A plurality of substantially strip-like windows 8 elongated in the axial direction are formed by each other. Moreover, the through-hole 6c is formed in the end wall 6b used as an axial direction both ends. And the outer case 6 is supported by the support member 11 by inserting the base end part 11c of the protrusion part 11a of the support member 11 in each through-hole 6c. In the present embodiment, the outer case 6 is supported so as to be rotatable around a rotation axis C that is a central axis of the support member 11. A protrusion 13 is provided on the outer periphery of the outer case 6 as an operation unit that is operated with fingers or the like when rotating.

  And the outer peripheral surface of the inner case 5 and the inner peripheral surface of the outer case 6 are disposed close to each other, and light is prevented from leaking from a gap between them.

  As shown in FIG. 4, the inner case 5 is provided with windows 7 at two locations (7a, 7b). Further, the outer case 6 has two windows 8 (8a and 8b) which are vertically opposed to each other in the state shown in FIG. 4, and two places (8a1 and 8b2) which are separated from these two places on the right side in FIG. , Are arranged in a total of four places.

  A light guide member 17 that guides light toward an appropriate position on the ceiling surface 2 of the passenger compartment S is provided above the window 7 (7a) disposed on the upper side in FIG. ing.

  When the light source 3 is turned on by operating a switch (not shown) in the state of FIG. 4, the two windows 7 (7a, 7b) of the inner case 5 and the two windows 8 (8a of the outer case 6). , 8b) overlap. Therefore, in this state, the indirect illumination light Li that passes from the light source 3 through the window 7a of the inner case 5, the window 8a of the outer case 6, and the light guide member 17 and is reflected by the ceiling surface 2 and travels into the passenger compartment S. Then, both the direct illumination light Ld that passes through the window 7b on the lower side of the inner case 5 and the window 8b of the outer case and goes directly into the passenger compartment S can be obtained.

  As described above, in this embodiment, the outer case 6 is configured to be rotatable around the rotation axis C. Here, as shown in FIG. 5, when the outer case 6 is rotated by a predetermined angle in the counterclockwise direction of FIG. 4, the window 8a1 of the outer case 6 overlaps with the upper window 7a of the inner case 5, The window 7b on the lower side of the inner case 5 is closed by the peripheral wall of the outer case 6, and a state where none of the windows 8 (8a, 8b, 8a1, 8b2) overlaps can be obtained. Therefore, in this state, the indirect illumination light that passes from the light source 3 through the upper window 7a of the inner case 5, the window 8a1 of the outer case 5 and the light guide member 17 and is reflected by the ceiling surface 2 and travels into the passenger compartment S. Only Li is obtained, and direct illumination light cannot be obtained.

  On the other hand, as shown in FIG. 6, when the outer case 6 is rotated by a predetermined angle in the clockwise direction of FIG. 4, the upper window 7 a of the inner case 5 is closed by the peripheral wall of the outer case 6. The windows 8 (8a, 8b, 8a1, 8b2) of the outer case 6 are not overlapped, and the window 8b2 of the outer case 6 is overlapped with the lower window 7b of the inner case 5. Therefore, in this state, only the direct illumination light Ld passing through the window 7b on the lower side of the inner case 5 and the window 8b2 of the outer case 6 from the light source 3 toward the vehicle interior S is obtained, and indirect illumination light is obtained. It will not be possible.

  As described above, the indoor lighting device 1 according to the present embodiment is arranged so as to cover the light source 3 and the periphery of the light source 3, and a plurality of windows 7 through which light from the light source 3 passes are formed. 7 includes an inner case 5 including a window 7a serving as an indirect illumination light path and a window 7b serving as a direct illumination light path, and a window 8 disposed so as to cover the inner case 5 and allowing light from the light source 3 to pass therethrough. The plurality of windows 8 are provided with an outer case 6 including a window 8a1 serving as an indirect illumination light path and a window 8b2 serving as a direct illumination light path.

  In the present embodiment, the outer case 6 is configured to be rotatable around the light source 3, and the relative rotation position between the inner case 5 and the outer case 6 is changed, whereby the window 7 a and the window serving as an indirect illumination light path are provided. 8a1 and the window 7b and the window 8b2 which are the direct illumination light paths without overlapping the window 7b and the window 8b2 (the state shown in FIG. 5), and the windows 7b and 8b2 which are the direct illumination light paths. And the window 7a and the window 8a1 serving as an indirect illumination light path are not overlapped, and only the direct illumination light Ld is emitted (state shown in FIG. 6) can be switched.

  Further, in the present embodiment, a plurality of windows 8 (8a, 8a1) serving as indirect illumination light paths and a plurality of windows 8 (8b, 8b2) serving as direct illumination light paths are formed, and the inner case 5 and the outer case 6 are formed. Further, the window 7a and the window 8a serving as the direct illumination optical path overlap and the window 7b and the window 8b serving as the indirect illumination optical path are overlapped to overlap the indirect illumination light Li and the direct illumination light Ld. A state in which both are emitted (the state shown in FIG. 4) is obtained.

  Therefore, in the present embodiment, the indirect illumination state (FIG. 6), the direct illumination state (FIG. 5), the indirect illumination state, and the direct illumination state can be relatively easily performed only by changing the rotational position of the outer case 6. It is possible to switch between three states (FIG. 4) in which both are obtained.

  In the present embodiment, the outer case 6 has a substantially cylindrical shape, and the inner case 5 has a substantially elliptic cylindrical shape. Therefore, there is a case where the outer periphery of the inner case 5 and the inner periphery of the outer case 6 are in sliding contact. However, it is possible to reduce the area of the regions that are in sliding contact with each other, and to reduce the sliding resistance when they rotate relative to each other.

  (Second Embodiment) FIGS. 7 to 11 show an interior lighting apparatus according to a second embodiment of the present invention. 7 is a perspective view of the indoor lighting device, FIG. 8 is an exploded perspective view of the indoor lighting device, FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 7, and FIG. The figure which shows the state which rotated the 1st shielding body contained in an illuminating device, FIG. 11 is the state which rotated the 1st shielding body contained in an indoor lighting apparatus to another position in the same cross section as FIG. FIG.

  The indoor lighting device 1A according to the present embodiment basically has the same configuration as the indoor lighting device 1 according to the first embodiment. However, in the present embodiment, the outer case 6A as the second light shield is fixed to the support member 11, and the inner case 5A as the first light shield is supported by the support member 11 so as to be rotatable. This is different from the embodiment. Further, in order to make the inner case 5A easy to move, an operation arm 14 is extended from the end wall 5d of the inner case 5A (cylinder 5LA) along the axial direction, and the operation arm 14 is connected to the outer case 6A (cylinder 6LA). ) Is exposed to the outside of the outer case 6 through an arc-shaped slit 6d formed in the end wall 6b. Other configurations are substantially the same as those of the first embodiment.

  Therefore, in the state of FIG. 9, when the light source 3 is turned on by operating a switch (not shown) as in FIG. 4, the two windows 7 (7a, 7b) of the inner case 5A The two windows 8 (8a, 8b) of the outer case 6A overlap. Therefore, in this state, the indirect illumination is reflected from the light source 3 through the upper window 7 a of the inner case 5, the window 8 a of the outer case 6, and the light guide member 17, and reflected from the ceiling surface 2 and into the passenger compartment S. Both the light Li and the direct illumination light Ld that passes through the window 7b on the lower side of the inner case 5 and the window 8b of the outer case 5 and goes directly into the passenger compartment S are obtained.

  On the other hand, as shown in FIG. 10, when the inner case 5A is rotated by a predetermined angle in the clockwise direction in FIG. 9, the window 8a1 of the outer case 6A overlaps with the window 7a on the upper side of the inner case 5A. As for the lower window 7b of 5A, it is possible to obtain a state in which none of the windows 8 (8a, 8b, 8a1, 8b2) overlaps. Therefore, in this state, only the indirect illumination light Li1 that passes from the light source 3 through the upper window 7a of the inner case 5A and the window 8a1 of the outer case 6A, is reflected by the ceiling surface 2 and goes into the passenger compartment S is obtained. Therefore, direct illumination light cannot be obtained.

  Further, as shown in FIG. 11, when the inner case 5A is rotated by a predetermined angle in the counterclockwise direction in FIG. 9, the upper window 7a of the inner case 5A is closed by the peripheral wall of the outer case 6A. None of the windows 8 (8a, 8b, 8a1, 8b2) overlap, and the window 8b2 of the outer case 6A overlaps the lower window 7b of the inner case 5A. Therefore, in this state, only direct illumination light Ld1 is obtained from the light source 3 through the window 7b on the lower side of the inner case 5A and the window 8b2 of the outer case 6A toward the vehicle interior S, and indirect illumination light is obtained. It will not be possible.

  According to the above embodiment, the indirect illumination state (FIG. 10), the direct illumination state (FIG. 11), the indirect illumination state, and the direct illumination state are relatively easily achieved by simply changing the rotation position of the inner case 5A. Can be switched between the three states (FIG. 9).

  In the present embodiment, the outer case 6A as the second light shield is fixed to the support member 11 disposed in the room. Therefore, in the present embodiment, the inner case 5A covered with the outer case 6A is rotated, which makes it easier to improve the aesthetics and protects the movable part compared to moving the first light shield. It becomes easy to raise.

  In the present embodiment, the operation arm 14 that changes the rotational position of the inner case 5A is extended to the outside of the outer case 6A. Therefore, the inner case 5 </ b> A can be more easily rotated using the operation arm 14.

  (First Modification of Second Embodiment) FIG. 12 is a cross-sectional view (a cross-sectional view of the same cross section as FIG. 9) of an indoor lighting device according to a first modification of the second embodiment.

  Similarly to the second embodiment, the interior lighting device 1B according to this modification also fixes the outer case 6B to the support member 11 (not shown), and supports the inner case 5A by the support member 11 so as to be rotatable. It is.

  However, in the present modification, a louver 15 is provided in the window 8b of the outer case 6B as an adjusting means for changing the passage state of light passing through the window 8b (in this modification, the direction of light and the amount of light passing). is there. Specifically, the louver 15 includes a plurality of elongate fins 15a along the axial direction of the outer case 6B, and these fins 15a can rotate around a support shaft substantially parallel to the rotation axis C. It is supported by the peripheral wall of the outer case 6B, and these rotation angles can be variably set. Further, a lever 15b that is engaged with the plurality of fins 15a is provided, and the angle of the plurality of fins 15a can be variably set substantially parallel by the lever 15b. The configuration is the same as that of the second embodiment except that the louver 15 is provided.

  According to this modification, since the louver 15 is provided as an adjustment mechanism, the light emission direction and the light emission amount from the window 8b can be adjusted, and a desired illumination state can be easily obtained.

  In addition, since the louver 15 as the adjusting mechanism is provided in the outer case 6B, layout restrictions are reduced compared to the case where the louver is provided in the inner case 5A, and the louver can be disposed more easily. There is also an advantage that it is easy to provide the lever 15b as the 15 operation portions.

  (Second Modification of Second Embodiment) FIG. 13 is a cross-sectional view (a cross-sectional view of the same cross section as FIG. 9) of an indoor lighting device according to a second modification of the second embodiment.

  Similarly to the second embodiment, the interior lighting device 1C according to the present modification also fixes the outer case 6B as the second shield to the support member 11 and the inner case 5A as the first shield by the support member 11. Is rotatably supported.

  However, in this modification, the movable shutter 16 is provided in the window 8b of the outer case 6C as an adjusting means for changing the passage state of light passing through the window 8b (in this modification, the amount of light passing). Specifically, a cross-sectional arc-shaped and strip-shaped plate 16a that moves while being slid substantially along the outer peripheral surface of the outer case 6C is provided, and this plate 16a is attached to the outer case 6C via a support mechanism (not shown). It is slidably held between a closed position (a position where the window 8b is not closed, the left side in FIG. 13) and a fully opened position (a position where the entire area of the window 8b is closed, the right side in FIG. 13).

  According to this modification, since the movable shutter 16 is provided as an adjustment mechanism, the amount of light emitted from the window 8b can be adjusted by changing the opening area of the window 8b, and a desired illumination state can be easily obtained. Become.

  Further, since the movable shutter 16 as the adjusting mechanism is provided in the outer case 6C, it can be arranged more easily because the layout restrictions are smaller than when the movable shutter 16 is provided in the inner case 5A.

  As mentioned above, although preferred embodiment and the modification of this invention were demonstrated, this invention is not limited to the said embodiment, A various deformation | transformation is possible.

  For example, in the above embodiment and the modification, the inner case as the first shielding body and the outer case as the second shielding body are both supported by the support member. One of the second shields may be fixed to the support member, and the other may be movably supported by the one. As an example, the outer case may be fixed to the support member, and the inner case may be rotatably supported by the outer case.

  Further, the configurations of the inner case and the outer case can be changed as appropriate, and are not limited to an elliptical cylindrical shape or a cylindrical shape.

  Further, the number of windows and the setting position can be changed as appropriate. As an example, a second window serving as an indirect illumination optical path and a second window serving as a direct illumination optical path are formed on the second shield one by one, and a window serving as an indirect illumination optical path is formed on the first shield. Moreover, you may form the 1st window used as a direct illumination optical path two places at a time.

  Moreover, the specifications (for example, width, length, formation position, shape, etc.) of the plurality of windows may be different, or the light transmittance of the panels fitted in the windows may be different. Moreover, a panel may be fitted in all the windows, and a panel may be fitted only in some windows.

  In addition, by appropriately setting the layout of the window, the first window and the second window, which are the indirect illumination light paths, overlap and the first window and the second window, which are the direct illumination light paths, do not overlap. Only the illumination light is emitted, and the first window and the second window that are direct illumination light paths overlap and the first window and the second window that are indirect illumination light paths do not overlap, but only the direct illumination light , And the first window and the second window that are the direct illumination optical path overlap and the first window and the second window that are the indirect illumination optical path overlap to overlap the indirect illumination light and You may enable it to switch the state from which both direct illumination lights are radiate | emitted.

It is a perspective view of the room lighting device concerning a 1st embodiment of the present invention. It is a disassembled perspective view of the room lighting device concerning a 1st embodiment of the present invention. FIG. 3 is a sectional view taken along line III-III in FIG. 1. It is IV-IV sectional drawing of FIG. It is a figure which shows the state which turned the 2nd shielding body contained in the interior illuminating device concerning 1st Embodiment of this invention by the predetermined angle with respect to the state of FIG. 4, Comprising: Sectional drawing in the same cross section as FIG. It is. FIG. 5 is a view showing a state in which the second shield included in the indoor lighting device according to the first embodiment of the present invention is rotated to a position at a predetermined angle with respect to the state of FIG. 4, and the same cross section as FIG. 4. FIG. It is a perspective view of the room lighting device concerning a 2nd embodiment of the present invention. It is a disassembled perspective view of the indoor illuminating device concerning 2nd Embodiment of this invention. It is IX-IX sectional drawing of FIG. FIG. 10 is a diagram illustrating a state in which the first shield included in the indoor lighting device according to the second embodiment of the present invention is rotated by a predetermined angle with respect to the state of FIG. 9, and is a sectional view in the same section as FIG. 9. It is. It is a figure which shows the state which rotated the 1st shielding body contained in the interior lighting apparatus concerning 2nd Embodiment of this invention to the position according to the predetermined angle with respect to the state of FIG. 9, Comprising: The same cross section as FIG. FIG. It is a figure which shows the indoor illuminating device concerning the 1st modification of 2nd Embodiment of this invention, Comprising: It is sectional drawing in the same cross section as FIG. It is a figure which shows the indoor illuminating device concerning the 2nd modification of 2nd Embodiment of this invention, Comprising: It is sectional drawing in the same cross section as FIG.

Explanation of symbols

Li, Li1 Indirect illumination light Ld, Ld1 Direct illumination light S Car interior 1, 1A-1C Interior illumination device 3 Light source 5, 5A Inner case (first shield)
6,6A-6C Outer case (second shield)
7 windows (first window)
8 windows (second window)
7a Window (first window that becomes an indirect illumination optical path)
7b Window (first window that becomes direct illumination light path)
8a, 8a1 window (second window which becomes indirect illumination light path)
8b, 8b2 window (second window which becomes direct illumination optical path)
11 Support member 14 Operation arm 15 Louver (adjustment mechanism)
16 Movable shutter (adjustment mechanism)

Claims (5)

A light source arranged indoors;
A plurality of first windows that are arranged so as to cover the light source and allow light from the light source to pass therethrough are formed. A first light-shielding body including
A plurality of second windows that are arranged so as to cover the periphery of the first light blocking body and allow light from the light source to pass therethrough are formed. A second light shield including a window to be
With
By configuring at least one of the first light-shielding body and the second light-shielding body to be rotatable around the light source, and changing the relative rotational position of the first light-shielding body and the second light-shielding body. A state where only the indirect illumination light is emitted without overlapping the first window and the second window serving as the direct illumination light path while the first window and the second window serving as the indirect illumination light path are overlapped, A state in which only the direct illumination light is emitted without overlapping the first window and the second window serving as the indirect illumination light path, while the first window and the second window serving as the direct illumination light path overlap. An interior lighting device characterized in that it can be switched. At least one of a first window serving as the indirect illumination optical path and a second window serving as the indirect illumination optical path are formed in plural, and the first window serving as the direct illumination optical path and the direct illumination optical path, At least one of the second windows is formed,
By changing the relative rotational positions of the first light shield and the second light shield, the first window and the second window that are the direct illumination light paths overlap and the first window that is the indirect illumination light path and The room lighting device according to claim 1, wherein a state in which both the indirect illumination light and the direct illumination light are emitted by overlapping the second window is obtained.   The indoor lighting device according to claim 1, wherein the second light shielding body is fixed to a support member disposed in the room.   The operation arm attached to the first light shield and changing the rotation position of the first light shield extends to the outside of the second light shield. The room lighting device according to one.   The room lighting device according to any one of claims 1 to 4, wherein the second light-shielding body is provided with an adjustment mechanism that changes a light passage state in the second window.

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