WO2015129637A1

WO2015129637A1 - Spring for illumination device, illumination device, and illumination apparatus

Info

Publication number: WO2015129637A1
Application number: PCT/JP2015/055083
Authority: WO
Inventors: 坂本　哲也; 太一 ▲角▼野; 公史齋藤
Original assignee: 三菱電機株式会社; 三菱電機照明株式会社
Priority date: 2014-02-27
Filing date: 2015-02-23
Publication date: 2015-09-03
Also published as: CN109163261A; CN106030205A; CN109140321A; CN109140321B; CN109163261B; CN106030205B

Abstract

A spring section (130) comprises a first flat section (L1), a first bent section (M1), a second flat section (L2), a second bent section (M2), a third flat section (L3), a third bent section (M3), a fourth flat section (L4), a fourth bent section (M4), an arc section (E), and an elbow section (K). The first bent section (M1), the second flat section (L2), the second bent section (M2), the third flat section (L3), the third bent section (M3), the fourth flat section (L4), the fourth bent section (M4), the arc section (E), and the elbow section (K) constitute an arc-shaped section.

Description

Spring for lighting device, lighting device and lighting fixture

The present invention relates to a spring, a lighting device, and a lighting fixture used in the lighting device.

In recent years, lighting fixtures using LEDs as light sources have been used instead of fluorescent lighting fixtures. As in the case of conventional fluorescent lamp lighting fixtures, there are some lighting fixtures using LEDs in which a light source portion in which LEDs are arranged is detachably fixed to a main body portion fixed to a mounting surface such as a ceiling. .

The method of attaching the light source part and the main body part is a lighting fixture in which the light source part is inserted and attached to a recess provided in the main body part, and the spring member provided on the side surface of the light source part is elastically deformed. There is one that is inserted into a recess, engages with a metal fitting that is provided inside the recess and fixes the light source unit, and the light source unit and the main body unit are connected (for example, Patent Document 1).
In addition, there is a light source part provided with a lighting device attached to the main body part, a groove part is formed in the entire side surface of the light source part provided with the lighting device, and the claw part that engages with the light source part groove part full length in the main body part Is provided, and the weight load of the light source part is dispersed by engaging with the full length of the side surface to prevent deformation of the claw part (for example, Patent Document 2).

In addition, a fitting portion is provided on a side surface of the main body portion and a side surface of the light source portion, and the fitting portion serves as a center of rotation, and the light source portion is rotated and attached toward the inside of the main body portion ( For example, Patent Document 3).

JP 2013-80592 A International Publication No. 2010/095710 JP 2011-060718 A

In the lighting apparatus of Patent Document 1, the light source unit and the main body unit are connected by a plurality of spring members. If the plurality of spring members are not simultaneously inserted into the corresponding fixing brackets, stress is applied to the spring unit. There is a risk of equipment failure.
Moreover, the lighting fixture of patent document 2 is fitting with the groove part and the nail | claw part in the side surface full length. For this reason, when removing the light source part from the main body part, it is necessary to simultaneously press the entire length of the fitting part to release the fitting state between the groove part and the claw part, and a dedicated jig is required.

Moreover, since the lighting fixture of patent document 3 is made into the fitting shape so that rotation is possible, it is necessary to provide a clearance gap between a lighting fixture and a ceiling so that a light source side surface part can rotate. Moreover, the side surface facing the fitting portion is fixed with screws, which has an influence on the design.

In the present invention, it is an object of the present invention to provide a lighting fixture in which a light source portion and a main body portion are detachable, and the light source portion can be easily connected to the main body portion by a spring portion.

The spring for lighting device of the present invention is
In the spring for an illuminating device, which is a longitudinal plate spring used in the illuminating device,
A flat part extending in the longitudinal direction;
An arc-shaped portion having an arc shape starting from the end of the flat portion, the arc-shaped portion having a projecting portion bent into a projecting shape at a starting position of the arc shape.

According to the present invention, it is possible to provide a lighting fixture that can easily connect the light source portion to the main body portion by the spring portion in the lighting fixture in which the light source portion and the main body portion are detachable.

FIG. 5 shows the first embodiment and is a perspective view of a lighting fixture 1000. FIG. FIG. 5 shows the first embodiment and is an exploded perspective view of the lighting apparatus 1000. FIG. FIG. 5 shows the first embodiment, and is a perspective view of a main body 100. FIG. FIG. 5 shows the first embodiment and is a perspective view of a light source unit 200. FIG. 5 shows the first embodiment, and is an enlarged perspective view of the main body 100. FIG. FIG. 5 shows the first embodiment and is a side view of a spring portion 130. FIG. FIG. 5 shows the first embodiment and is a perspective view of a spring portion 130. FIG. 5 shows the first embodiment, and is an enlarged perspective view of a light source unit 200. FIG. 5 shows the first embodiment, and is a perspective view of a connecting metal fitting 250. FIG. 5 shows the first embodiment, and is a perspective view of a slip-off preventing portion 260. FIG. 5 shows the first embodiment, and shows a procedure for attaching the spring portion 130. FIG. 5 shows the first embodiment and is an enlarged view of a spring portion 130. FIG. FIG. 5 shows the first embodiment and is a diagram showing a configuration diagram of a lighting fixture 2000 which is a modification of the lighting fixture 1000. FIG. FIG. 4 shows the first embodiment, and is a cross-sectional view taken along the line AA in FIG. FIG. 5 shows the first embodiment and is a cross-sectional view taken along the line BB of FIG. FIG. 6 shows the first embodiment and shows an end portion of a light source unit 200. FIG. 5 shows the first embodiment, and is a perspective view of a light source lid portion 240. FIG. 12 shows the first embodiment and is a diagram supplementing FIG. 11 (b). FIG. 10 shows the second embodiment and is an inclined view of the lighting fixture 1000. FIG. FIG. 10 shows the second embodiment and is an exploded oblique view of the lighting fixture 1000. FIG. FIG. 5 shows the second embodiment, and is an inclined view of the main body 100. FIG. 5 shows the second embodiment, and is an inclined view of the light source unit 200. FIG. 6 is a diagram illustrating the second embodiment, and is an exploded oblique view of the light source unit 200; FIG. 5 shows the second embodiment, and is an enlarged inclination view of the main body 100. FIG. FIG. 5 shows the second embodiment, and is an enlarged inclination view of the light source unit 200. FIG. 5 shows the second embodiment, and is an enlarged inclination view of the light source unit 200. FIG. 9 shows the second embodiment, and is an inclined view of the detent portion 260. FIG. 9 shows the second embodiment, and is an inclined view of the connecting metal fitting 250. FIG. FIG. 5 shows the second embodiment, and is an inclined view of the wire spring 280. FIG. FIG. 9 shows the second embodiment and is a side view of a wire spring 280. FIG. 11 shows the second embodiment, and is an inclined view of a hanging strap 290; FIG. 6 is a diagram showing the second embodiment, and is an attachment process diagram. FIG. 5 shows the second embodiment, and is a mounting operation diagram of the spring portion 130.

Embodiment 1 FIG.
With reference to FIGS. 1 to 18, the configuration of lighting apparatus 1000 (lighting apparatus) according to Embodiment 1 will be described. In Embodiment 1, as an example of a lighting fixture according to the present invention, a cross-section of lighting fixtures attached to a mounting portion such as a ceiling (hereinafter, the ceiling is described as an example of the mounting portion but is not limited to the ceiling). Is a lighting fixture 1000 having an inverted triangular shape. In the following description, for convenience, the ceiling side (attached surface side) will be described as the upper surface side, and the floor surface (opposite side to the attached surface) will be described as the lower surface side.

FIG. 1 is a perspective view of the lighting apparatus 1000. FIG. FIG. 2 is an exploded perspective view of the lighting fixture 1000 shown in FIG. FIG. 3 is a perspective view of the main body 100 shown in FIG. FIG. 4 is a perspective view of the light source unit 200 shown in FIG.

(Configuration of lighting apparatus 1000)
As shown in FIGS. 1 and 2, a lighting fixture 1000 (lighting device) includes a main body 100 that is installed so as to abut on a ceiling (attached portion), and a light source unit 200 that is detachably attached to the main body 100. Composed. The light source unit 200 is detachably attached so as to face the main body unit 100.

(Main body 100)
As shown in FIG. 2, the main unit 100 includes a terminal block 120 to which a power supply wire drawn from the outside of the lighting fixture 1000 is connected and a spring unit 130 for attaching (fixing) the light source unit 200 to the main unit 100. Lighting device spring).

(Concave portion 111, mounting portion 112, light source fixing portion 113, inclined portion 114, lid portion 115)
As shown in FIG. 3, the main body 100 has a recess 111 formed in a substantially central portion along the longitudinal direction. FIG. 14 is a view for showing the recess 111 and is a cross section AA of FIG. As shown in FIGS. 5 and 14, an attachment portion 112 that abuts the ceiling is formed on the bottom side of the recess 111. On the opening side (FIG. 14), a light source fixing part 113 (FIG. 3) is formed, in which a part of the light source part 200 is inserted and fixed. The light source fixing unit 113 includes a light source insertion unit 113 a into which the light source unit 200 is inserted and a light source receiving unit 113 b that receives the light source unit 200. The light source insertion portion 113a is a vertical plate that forms both walls of the recess 111 as shown in FIG. As shown in FIG. 14, the light source receiving portion 113b is the upper end of the light source insertion portion 113a and the location where the inclined portion 114 starts. The light source receiver 113b (FIG. 14) receives the light source unit 200 by contacting the light source unit 200 (cover unit 230) at the upper end of the light source insertion unit 113a. Specifically, the light source receiving part 113b receives the light source part 200 (cover part 230) in contact with the cover contact part 230b (FIG. 16). As shown in FIGS. 2 and 14, an inclined portion 114 corresponding to an inclined surface having an inverted triangular cross section is formed from the light source receiving portion 113b. As shown in FIG. 2, lid portions 115 are attached to both ends of the main body portion 100 so as to cover the end portions of the concave portion 111 and the inclined portion 114.

(Power supply hole 112a, fixing hole 112b)
As shown in FIG. 3, the spring portion 130 and the terminal block 120 are attached to the attachment portion 112 of the main body portion 100. In addition, the attachment portion 112 is formed with a power supply hole 112a through which a power line for supplying commercial power is drawn, and a fixing hole 112b for fixing to the ceiling.

(Light source unit 200)
As shown in FIG. 4, the light source unit 200 includes an LED unit 210 (not shown in FIG. 4), a holding unit 220, a cover unit 230, a light source lid unit 240, a connection fitting 250 (connection unit), a slip-off preventing unit 260, A lighting device 270 is provided.
(1) The LED unit 210 (FIGS. 15 and 16) includes a plurality of LEDs (not shown) and a substrate on which the plurality of LEDs are mounted.
(2) The LED unit 210 is attached to the holding unit 220 (described later). FIG. 15 is a BB cross section of FIG. As shown in FIG. 15, the holding part 220 includes a holding front part 220a corresponding to a bottom plate and holding side parts 220b corresponding to side plates on both sides of the holding front part 220a. (3) As shown in FIG. 15, the cover unit 230 is attached to the holding unit 220 so as to cover the LED unit 210, and controls diffusion of light emitted from the LED unit 210.
(4) The light source lid portion 240 (FIGS. 4 and 17) is a lid that covers the end portion of the cover portion 230.
(5) The connection fitting 250 is connected to the spring portion 130. The connection fitting 250 is a counterpart component of the spring portion 130. The spring part 130 is a mating part of the connection fitting 250.
(6) The detachment preventing portion 260 (FIG. 10) is a detachment prevention of the cover portion 230 that prevents the cover portion 230 from being detached from the holding portion 220.
(7) The lighting device 270 (FIG. 4) is a device that lights the LED unit 210.

The LED unit 210 is formed to be long so as to be substantially the same as the longitudinal direction of the lighting fixture 1000 (FIG. 1). In addition, the LEDs are arranged in one or a plurality of rows so as to be arranged in the longitudinal direction on the substrate.

The holding part 220 (FIGS. 8 and 15) includes a holding front part 220a (FIG. 8) to which the LED unit 210 is attached as described above, and a holding side part 220b that protrudes vertically from both ends of the holding front part 220a. (FIG. 15) and is formed in a long shape. Further, on the back surface (upper surface side) of the surface of the holding front portion 220a to which the LED unit 210 is attached, the connecting bracket mounting base 220c (FIG. 4, FIG. 4) for mounting the connecting bracket 250 (FIG. 9) connected to the spring portion 130. FIG. 8) is formed.

(Cover section 230)
The cover part 230 (FIGS. 2, 15, and 16) includes a cover claw part 230a, a cover contact part 230b, and a cover diffusion part 230c.
(1) The cover claw portion 230a engages with the holding side surface portion 220b and attaches to the holding side surface portion 220b as shown in FIGS.
(2) As shown in FIG. 15, the cover abutting portion 230b has the same level as the holding front portion 220a (almost the same height in the upper surface direction, that is, the lower surface of the holding front portion 220a and the abutting surface of the cover abutting portion 230b. It is located at substantially the same height) and spreads outward from the holding front part 220a.
(3) The cover diffusing portion 230c (FIG. 15) is formed in a substantially arc shape from the outer end portion of the cover abutting portion 230b and has a long shape covering the LED unit 210.

(Light source cover 240, FIGS. 4 and 17)
The light source cover part 240 (FIG. 17) is fitted into an end part (FIG. 16) composed of the cover contact part 230b, the cover diffusion part 230c, and the holding front part 220a of the cover part 230, and closes the end part. It is out.

(Connecting bracket 250)
The connecting metal fitting 250 (FIGS. 4, 8, and 9) has a substantially L-shaped cross section (FIG. 12). The connecting metal fitting 250 is formed of a spring insertion portion 250a and a metal fitting fixing portion 250b, and is fixed to the connecting metal fitting mounting base 220c (FIGS. 8 and 12) of the holding portion 220.

(Spring insertion part 250a)
As shown in FIG. 9, the spring insertion portion 250a is opened to insert the spring portion 130, and the spring insertion hole 250a-1 (opening) and the portion from the spring insertion hole 250a-1 toward the metal fitting fixing portion 250b are inward. A bent spring receiving portion 250a-2 and a non-slip receiving portion 250a-3 for fixing the anti-slip portion 260 are provided.

(Fitting fixing part 250b)
The metal fitting fixing portion 250b (FIG. 9) is abutted and fixed to the connecting metal fitting mount 220c (FIG. 12), and a spring sliding auxiliary portion 250b-1 whose end is bent outward (on the holding portion 220 side) is provided. Is formed.

(Release stop part 260)
The detachment preventing portion 260 (FIG. 10) is a member that prevents the engagement between the holding portion 220 (holding side surface portion 220 b) and the cover portion 230 from being disengaged, and the fitting portion 260 a is fitted to the connection fitting 250. It is fixed to the connection fitting 250. The detachment preventing portion 260 includes a fitting portion 260a that fits so as to cover the connection fitting 250, and an engagement cover portion 260b that is fitted so as to cover the holding side surface portion 220b and the cover claw portion 230a. The slip-off preventing portion 260 is engaged with the connection fitting 250 by the clip portion 261a of the fitting portion 260a sandwiching the release-stop receiving portion 250a-3 of the connection fitting 250. Further, as shown in FIG. 15, the engagement cover portion 260b sandwiches the holding side surface portion 220b and the cover claw portion 230a and prevents the engagement between the holding side surface portion 220b and the cover claw portion 230a from being released.

(Lighting device 270)
The lighting device 270 (FIG. 4) is a device that supplies power from the commercial power to the LED unit 210 via the terminal block 120 (FIG. 3) to light the LED unit 210. The lighting device 270 includes a lighting device body 270 a having a substantially rectangular parallelepiped shape and a power connector 270 b connected to the terminal block 120.

(Spring part 130)
The spring portion 130 (FIGS. 3 and 5 to 7) is fixed to the attachment portion 112 (FIG. 5) with screws 118. The spring part 130 has a function of fixing the light source part 200 (described in FIGS. 11 and 12).

The spring portion 130 is a longitudinal leaf spring formed of an elastic material such as a stainless steel material or a spring steel plate. As shown in FIG. 6, the spring portion 130 (illuminating device spring) includes a first flat portion L1 (flat portion), a first bent portion M1, a second flat portion L2, a second bent portion M2, a third flat portion L3, A third bent portion M3, a fourth flat portion L4, a fourth bent portion M4, an arc portion E, and a bent portion K are provided. The first bent portion M1, the second flat portion L2, the second bent portion M2, the third flat portion L3, the third bent portion M3 (projection portion), the fourth flat portion L4, the fourth bent portion M4, and the arc portion E. The bent portion K constitutes an arc-shaped portion. The arc-shaped portion has a third bent portion M3 that is a protruding portion that is bent into a protruding shape at the beginning of the arc shape. (1) The 1st flat part L1 (fixed part) goes to a longitudinal direction from one edge part of a longitudinal shape. The first flat portion L1 is fixed to the attachment portion 112 with a screw 118 (FIG. 5).
(2) The first bending portion M1 is formed with the first bending radius R1 at the end of the first flat portion L1. (3) The second flat portion L2 is bent at the first angle θ1 with the first bending radius R1 and rises from the first flat portion L1. The second flat portion L2 becomes a movable shaft (FIG. 11).
(4) The second bending portion M2 is formed at the end of the second flat portion L2 with the second bending radius R2 in the direction opposite to the first bending radius R1.
(5) The third flat portion L3 is bent and extended to the acute second angle θ2 with the second bending radius R2. (6) The third bending portion M3 is formed at the end of the third flat portion L3 with the third bending radius R3 in the direction opposite to the second bending radius R2. The third bending portion M3 controls the sliding of the arc portion E by hitting the spring receiving portion 250a-2 of the coupling metal 250 immediately before the light source portion 200 is completely attached to the main body portion 100.
(7) The fourth flat portion L4 is bent and extended to the acute third angle θ3 with the third bending radius R3. (8) The fourth bending portion M4 is formed at the end of the fourth flat portion L4 with the fourth bending radius R4 in the direction opposite to the third bending radius R3.
(9) The arc portion E is bent into the obtuse fourth angle θ4 with the fourth bending radius R4, extends in the longitudinal direction toward the first flat portion L1, and is convex in the rising direction of the second flat portion L2. It is a part of. The arc portion E is a sliding portion that slides in contact with the opening edge portion 250a-1-1 (FIG. 9) of the connection fitting 250.
(10) The bent portion K (hook portion) is a bent end portion of the arc portion E, and is hooked on the opening edge portion 250a-1-1 of the connection fitting 250 ((b) of FIG. 11).

The second flat part L2 is a shaft part of an elastic action when the spring part 130 attaches the light source part 200 (FIGS. 11 and 12 described later).

The inner portion M4-1 (near arc portion, FIG. 12) of the fourth bent portion M4 contacts the opening edge 250a-1-1 of the connection fitting 250 when the spring portion 130 holds the light source portion 200. (FIG. 12 described later).

(Number of spring portions 130)
One spring part 130 is provided on each of the left and right sides of the central axis 117 (FIG. 3) that bisects the longitudinal direction of the main body part 100. Each spring part 130 is arranged such that the first flat part L1 as a fixing part faces the central axis 117 and the bent part K faces the lid part 115 direction. Therefore, the spring part 130 is movable so as to open in the outward direction ((a) in FIG. 11).

(Terminal block 120)
The terminal block 120 (FIG. 3) supplies electric power supplied from a commercial power source to the light source unit 200, and includes a terminal block connector 120a connected to the power connector 270b of the lighting device 270.

(Installation work of the light source unit 200)
Next, an operation in which an operator attaches the light source unit 200 (connecting bracket 250) to the main body unit 100 (spring unit 130) attached to the ceiling will be described with reference to FIG.
In FIG.
FIG. 11A shows a state before the light source unit 200 is attached to the main body unit 100.
In FIG. 11B, the bent portion K is connected to the connecting metal fitting 250 of the light source unit 200 in a state where the spring portion 130 is elastically deformed so that the curvature of the arc portion E of the spring portion 130 is increased. Indicates the state. FIG. 11C shows a state in which the back side of the circular arc portion E slides with respect to the opening edge portion 250a-1-1 of the connection fitting 250.
FIG. 11D shows a state where the light source unit 200 is attached to the main body unit 100.

((A) in FIG. 11)
11A, in the main body portion 100, the first flat portion L1 of the spring portion 130 abuts on the attachment portion 112 and is fixed by a screw 118 (same as in FIG. 5). The light source unit 200 is not attached to the main body unit 100.

((B) of FIG. 11)
Next, in FIG. 11B, the spring portion 130 has a circular arc portion E (sliding portion) perpendicular to the mounting portion 112 with the second flat portion L <b> 2 (movable shaft) as the center of rotation. The state is elastically deformed. The operator causes the spring portion 130 to pass through the spring insertion hole 250a-1 from the bent portion K of the spring portion 130 with respect to both the connection fittings 250. The operator hooks the bent portion K of the spring portion 130 on the opening edge portion 250a-1-1 of the spring insertion hole 250a-1 (FIG. 9) of the connection fitting 250, and suspends the light source portion 200 from the main body portion 100. . As shown in FIG. 3, two spring portions 130 are arranged at both end portions of the main body portion 100 as shown in FIG. 3, and the light source portion 200 is connected to the main body portion 100 by two spring portions 130 as shown in FIG. It can be held in a substantially parallel state. At the time of construction of the lighting fixture 1000, the operator can connect the connector without having to support the light source unit 200 with both hands or one hand in the state shown in FIG.

((C) of FIG. 11)
Next, in FIG. 11C, when the operator lifts the light source part 200 upward (toward the ceiling), the back surface of the arc part E of the spring part 130 is the opening edge part 250a- of the spring insertion hole 250a-1. Slides against 1-1 due to the restoring force of the spring. The sliding action of the spring part 130 (arc part E) is that when the operator lifts the light source part 200 upward (toward the ceiling), the spring part 130 will naturally return to its original shape. Without worrying about the spring portion 130, the spring portion 130 returns to its original shape while sliding with respect to the connecting fitting 250.

((D) in FIG. 11)
Next, in FIG. 11D, when the operator inserts the cover claw portion 230a portion of the light source portion 200 into the light source insertion portion 113a (FIG. 14) of the main body portion 100, the cover contact portion 230b It contacts the receiving part 113b. At this time, immediately before the mounting state of the light source part 200 is completed, the spring part 130 is in contact with the spring receiving part 250a-2 by the third bending part M3 (sliding control part, sliding suppression part), and the arc part E Sliding is suppressed. When the operator completes the insertion of the light source unit 200 into the main body unit 100 (completed mounting of the light source unit 200), the inner portion M4-1 of the fourth bent portion M4 of the spring unit 130 is the opening edge of the connection fitting 250. In a state where it presses against 250a-1-1, it is positioned with respect to the opening edge 250a-1-1 (FIG. 12). At this time, the spring constant when the spring portion 130 supports the opening edge portion 250a-1-1 at the inner portion M4-1 is the spring constant when the light source portion 200 is supported by the bent portion K in FIG. It is significantly larger than the constant. This can be roughly estimated as a cantilever having the first flat portion L1 as a fixed end because the first flat portion L1 (fixed) is fixed to the main body portion 100 in the spring portion 130. In the spring portion 130, the linear distance (span) between the first bent portion M1 and the fourth bent portion M4 that hardly elastically deforms is, for example, 1/5 of the distance (span) between the first bent portion M1 and the bent portion K. About 1/6. In cantilever beams, the span affects the spring constant by the third power. Therefore, if the spring constant in the fourth bent portion M4 is 1/5, it is 125 times the spring constant in the bent portion K, and if it is 1/6, it is 216 times the spring constant in the bent portion K. For this reason, when the operator completes the insertion of the light source unit 200 into the main body unit 100, the inner portion M4-1 of the fourth bent portion M4 of the spring unit 130 passes through the opening edge portion 250a-1-1 of the connection fitting 250. Can be supported. That is, the weight of the light source unit 200 can be supported by the inner portion M4-1 of the fourth bent portion M4.

(Removal work of the light source unit 200)
Next, a method for removing the light source unit 200 from the main body unit 100 will be described. The method of removing the light source unit 200 is the reverse of the mounting method described in FIG.
(1) As shown in FIG. 11D, the operator pulls the light source unit 200 substantially horizontally from the state in which the light source unit 200 is attached to the main body unit 100.
(2) The operator pulls down the light source part 200 through FIG. 11C to the state of FIG. 11B, and removes the bent part K of the spring part 130 from the spring insertion hole 250a-1 of the connecting metal 250. .
(3) The operator removes the light source unit 200 from the main body unit 100 by the above procedure.

Next, the elastic action (action effect) of the spring part 130 at the time of attachment will be described. FIG. 12 is an enlarged view around the second flat portion L2 (movable shaft) of the spring portion 130 when the first embodiment is attached. In FIG. 12, the dotted line shows the spring part 130 (referred to as the spring part 130a) in a state where it is not elastically deformed (state shown in FIG. 11A), and the solid line holds the light source part 200 at the inner portion M4-1. 11 shows a spring portion 130 (referred to as a spring portion 130b) in an elastically deformed state (the state shown in FIG. 11D).

In FIG. 12, in the spring part 130b (solid line), the inner part M4-1 (indicated by a black circle) is equivalent to the inner part M4-1 of the spring part 130a (dotted line) (the inner part M4 in the spring part 130b (solid line)). When compared with the position of the mark -1 when the spring portion 130a (dotted line) is returned to the mark, the result is as follows. That is, the spring part 130b (solid line) holds the light source part 200 (the connecting metal fitting 250) in a state where it is elastically deformed by the dimension A horizontally in the direction of the first flat part L1 and the dimension B in the lower direction.

(Relationship between spring part 130 sag and elastic force)
The spring portion 130 is used as shown in FIG. 11B or FIG. Therefore, when the spring portion 130 is sagged, it affects the direction in which the second angle θ3 in FIG. 6 increases. This effect acts in the direction in which the dimension A increases in FIG. 12, and as a result sag occurs. The spring part 130 can suppress a decrease in the elastic force that supports the light source part 200 (connecting bracket 250). As described above, due to the shape characteristics of the spring portion 130, even if the spring portion 130 is deteriorated (sagging), the elastic force is not reduced (the elastic force (deflection) rather than the sag). The light source unit 200 can be held. The connection fitting 250 is connected to the spring portion 130, and may have a shape other than that of the first embodiment as long as the dimension A and the dimension B do not become negative.

In the first embodiment, when the worker attaches the light source unit 200 to the main body unit 100, the arc portion E of the spring unit 130 slides on the connection fitting 250 provided on the light source unit 200 by a restoring force. The third bending portion M3 suppresses (controls) the sliding of the arc portion E immediately before the operator places the light source unit 200 in the final mounting state. The light source unit 200 can be supported by a large spring constant. With this configuration, it is possible to provide a connection mechanism that can reliably and easily connect the main body unit 100 and the light source unit 200 and a lighting fixture that includes the connection mechanism.
Further, in this coupling mechanism, as shown in FIG. 11B, both hands of the operator are freed, and the light source part 200 is lifted in the ceiling direction so that the inner part M4-1 slides and the spring part 130 is moved. Try to return to its original shape. Therefore, the work efficiency of attaching and removing the light source unit 200 is improved.

In the lighting fixture 1000 according to the first embodiment, the light source unit 200 can be attached to the main body unit 100 with the spring unit 130 and the connecting metal fitting 250, so that the number of parts can be reduced. In addition, since the lighting fixture 1000 can be attached and detached without a dedicated jig, workability is improved.

In the first embodiment, the lighting fixture 1000 having an inverted triangular cross section has been described. However, the main body unit and the light source unit are not integrated, and the light source unit needs to be attached to the main body unit. As long as it is an instrument, it may be an embedded type, a direct attachment type, or a substantially square shape such as a ceiling square type.

In the first embodiment, the mounting mechanism in which the light source unit 200 is mounted substantially in parallel as shown in FIG. 18 has been described. However, the mounting is performed from one side (one of the two spring units 130 in FIG. 2). May be.

Further, in the first embodiment, the mounting mechanism in which the spring portion 130 is disposed at two positions in the longitudinal direction of the lighting fixture 1000 has been described. However, as in the lighting fixture 2000 shown in FIG. Then, the other may be attached by a spring part. In FIG. 13 showing the lighting fixture 2000, the configuration of the main body portion and the light source portion is different from that of the lighting fixture 1000, so the main body portion is indicated as the main body portion 100 'and the light source portion is indicated as the light source portion 200'.

In the first embodiment, the arrangement in which the pair of spring portions 130 are movable so as to open in opposite directions has been described. However, the arrangement may be such that the spring portions 130 are opened opposite to each other and open in the same direction. (For example, in FIG. 3, the two spring portions 130 may face in the same direction (the arrow side indicating the longitudinal direction)).

In the first embodiment, the specifications for providing the main body 100 with the spring 130 and the light source 200 with the connection fitting 250 have been described. However, the main body 100 includes the connection fitting 250, and the light source 200 has the spring. The specification provided with 10 may be sufficient.

Conventionally, in a lighting fixture in which a light source part and a main body part are removable, there is a problem that it is not easy to attach the light source part to the main body part. However, since the lighting fixture of Embodiment 1 includes the spring portion 130 and the connecting metal fitting 250, the light source portion 200 and the main body portion 100 can be easily connected to each other, and a lighting fixture that can be easily attached to the light source portion 200 is provided. it can.

Embodiment 2. FIG.
FIG. 19 is an inclined view of the lighting fixture 1000 according to the second embodiment.
FIG. 20 is an exploded oblique view of the lighting fixture 1000 shown in FIG.
FIG. 21 is a perspective view of the main body 100 shown in FIG.
FIG. 22 is a tilt view of the light source unit 200 shown in FIG.
FIG. 23 is an exploded oblique view of the light source unit 200 shown in FIG.
24A is an enlarged view of part A of the main body 100 shown in FIG. 21, and FIG. 24B is an enlarged view of part B of the main body shown in FIG.
FIG. 25 is an enlarged view of part A of the light source unit 200 shown in FIG.
FIG. 26 is an enlarged view of part B of the light source unit 200 shown in FIG.
FIG. 27 is an inclined view of the stopper portion 260 shown in FIG.
FIG. 28 is an inclined view of the connection fitting 250 shown in FIG.
FIG. 29 is an inclined view of the wire spring 280 shown in FIG.
FIG. 30 is a side view of the wire spring 280 shown in FIG.
FIG. 31 is an inclined view of the hanging strap 290 shown in FIG.
FIG. 32 is an attachment process diagram for attaching the light source unit 200 to the main body unit 100.
FIG. 33 is an explanatory diagram of the operation of the spring portion 130.

The configuration of the lighting fixture in the second embodiment will be described. In the present embodiment, as an example of a lighting fixture according to the present invention, the cross section is attached to a mounted portion such as a ceiling (hereinafter, the mounted portion will be described by taking the ceiling as an example but is not limited to the ceiling). A triangular lighting apparatus will be described. In the following description, for convenience, the ceiling side (attached surface side) will be described as the upper surface side, and the floor surface (opposite side to the attached surface) will be described as the lower surface side.

The spring portion 130 used in the lighting fixture described below is the spring portion 130 shown in FIGS.

As shown in FIG. 19, the lighting fixture 1000 includes a main body 100 that is installed so as to contact the ceiling, and a light source 200 that is detachably attached to the main body 100. The main body unit 100 includes a spring unit 130 for fixing the light source unit 200 to the main body unit 100 and a terminal block 120 to which a power supply wire drawn from outside is connected. In the luminaire 1000, a longitudinal light source unit 200 is detachably mounted facing the longitudinal body 100.

The spring part 130 is a spring for a lighting device used in the lighting device. The lighting device is also called a lighting fixture.

(Main body 100)
As shown in FIGS. 20 and 21, the main body 100 is formed with a recess 111 at a substantially central portion along the longitudinal direction. The recess 111 will be described with reference to FIG. The recess 111 includes a mounting portion 112, a light source fixing portion 113 (113a, 113b), and an inclined portion 114. The light source fixing part 113 includes a light source insertion part 113a (side plate) into which the light source part 200 is inserted, and a light source receiving part 113b that is disposed on the outer periphery of the light source insertion part 113a and contacts the light source part 200. The concave portion 111 is formed with an attachment portion 112 (corresponding to a bottom plate in FIG. 24B) that contacts the ceiling on the bottom side. A light source fixing portion 113 (light source insertion portion 113a and light source receiving portion 113b) to which a part of the light source portion 200 is inserted and fixed is formed on the opening side. The light source insertion portion 113 a is a side plate that rises from both ends of the attachment portion 112. A light source receiving portion 113b that is pressed against a cover contact portion 230b described later is formed at the tip of the attachment portion 112. An inclined portion 114 is formed from each of the light source receiving portions 113b. Further, as shown in FIG. 20, lid portions 115 are attached to both ends so as to cover the concave portion 111 and the inclined portion 114.

As shown in FIG. 21, the attachment portion 112 of the main body portion 100 can be attached to the spring portion 130 and the terminal block 120, and is fixed to the ceiling with a power supply hole 112 a for drawing in a power supply line for receiving power supply from a commercial power supply. A fixing hole 112b is formed. Further, as shown in FIG. 24B, a metal fitting 112c-1 in which a hanging hole 112c for hooking a hanging cord 290 for preventing the light source unit 200 from falling is attached.

(Catch metal fitting 116)
As shown in FIG. 24B, of the two lids 115, on the side where the spring part 130 is not disposed, a hooking slide which is a tip part of a later-described wire spring 280 (pressing pressure tool) is provided on the inner side. A hook metal 116 (hook) on which the portion 280d is hooked is attached. The hook metal 116 is formed with a hook hole 116a which is a substantially square opening to which the hook sliding portion 280d is hooked. In the second embodiment, the lid 115 and the hook metal fitting 116 are described as separate bodies, but they may be formed integrally.
The wire spring 280 is a counterpart component of the hook metal fitting 116.

(Light source unit 200)
As shown in FIG.
(1) an LED unit 210 including a plurality of LEDs 212 (not shown) and a substrate 211 on which the plurality of LEDs are mounted;
(2) a holding part 220 to which the LED unit 210 is attached;
(3) A cover unit 230 that attaches to the holding unit 220 so as to cover the LED unit 210 and controls diffusion of light emitted from the LED unit 210;
(4) a light source lid portion 240 that covers each end portion of the cover portion 230 in the longitudinal direction;
(5) a connection fitting 250 (connection tool) connected to the spring portion 130;
(6) a slip-off preventing portion 260 for preventing the cover portion 230 from being detached from the holding portion 220, and (7) a lighting device 270 for lighting the LED unit 210,
(8) a wire spring 280 inserted into the hook metal fitting 116;
(9) A suspension string 290 for preventing the light source unit 200 from falling is provided.

The LED unit 210 is an LED substrate on which a plurality of LEDs are mounted.

(LED unit 210)
The LED unit 210 includes a plurality of LEDs 212 and a substrate 211 on which the plurality of LEDs are mounted, and is formed in a long shape so as to be substantially the same as the longitudinal direction of the lighting fixture 1000. Further, the LEDs 212 are arranged so as to be arranged substantially evenly in the longitudinal direction of the substrate 211.

(Holding part 220)
As shown in FIG.
(1) A holding front part 220a to which the LED unit 210 is attached;
(2) It is comprised from the holding | maintenance side part 220b which protrudes perpendicularly from the longitudinal both sides | surfaces of the holding | maintenance front part 220a (it stands), and is formed in elongate shape.
(3) Further, on the back surface of the holding front portion 220a to which the LED unit 210 is attached, a connection fitting mounting base 220c for attaching the connection fitting 250 connected to the spring portion 130 is formed.
(4) Further, a hook spring holding portion 220d in which the end portion of the wire spring 280 is inserted and held at one end in the longitudinal direction, and the movement of the wire spring 280 is formed to be paired with an “L” shape. A hook spring control unit 220e is formed.

(Cover section 230)
As shown in FIG.
(1) a cover claw portion 230a whose cross section is engaged with the holding side surface portion 220b of the holding portion 220;
(2) A cover abutting portion 230b that is located at the same level as the holding front portion 220a, is formed in the opposite direction to the holding front portion 220a, and presses against the light source receiving portion 113b.
(3) Cover diffusing portion 230c formed in a substantially arc shape so as to cover LED unit 210 from the end of cover abutting portion 230b (FIG. 20)
Is formed in a long shape.

(Light source cover 240)
The light source cover part 240 (FIG. 22) fits into a cross section composed of a cover contact part 230b of the cover part 230, a cover diffusion part 230c (FIG. 20), and a holding front part 220a (FIG. 23) of the holding part 220. It is closed.

(Connecting bracket 250)
The connecting metal fitting 250 (FIG. 28) has a substantially L-shaped cross section at the center, and is formed with a spring insertion portion 250a and a metal fitting fixing portion 250b. It is fixed to the connecting bracket mounting base 220c of the holding part 220.

(Spring insertion part 250a)
The spring insertion portion 250a includes a spring insertion hole 250a-1 that is opened to insert the spring portion 130, and a spring receiving portion 250a-2 that is bent inward from the spring insertion hole 250a-1 in the direction of the metal fitting fixing portion 250b. And a stopper receiving part 250a-3 for fixing the stopper part 260.

(Fitting fixing part 250b)
The bracket fixing portion 250b is fixed in contact with the connecting bracket mounting base 220c.

(Release stop part 260)
The stopper part 260 (FIG. 27) prevents the engagement between the holding part 220 and the cover part 230 as shown in FIG. Further, as shown in FIG. 25, the stopper 260 includes a contact portion 260c that contacts the holding portion 220, and an engagement cover portion 260b that is fitted to cover the holding side surface portion 220b and the cover claw portion 230a. ing.

(Lighting device 270)
The lighting device 270 (FIG. 22) supplies power from commercial power to the LED unit 210 via the terminal block 120 to light the LED unit 210. The lighting device main body 270a having a substantially rectangular parallelepiped shape, and a terminal The power cable 270c and the power connector 270b are connected to the base 120.

(Wire spring 280)
The wire spring 280 (FIGS. 29 and 30) is inserted into the hooking hole 116 a of the hooking metal 116 provided in the main body 100. The wire spring 280 is formed by forming a wire material having elasticity, such as a stainless steel material or a spring steel plate, into a substantially square shape.

The wire spring 280 is
(1) Plugs 280a that are both ends of the wire and are inserted into the hook spring holding part 220d;
(2) a holding portion 280b held inside the L shape of the hook spring holding portion 220d;
(3) After being inserted into the hooking hole 116a, it comprises a pressing part 280c that presses the hooking metal piece 116 against the holding part 220 by elastic force.
The tip of the pressing portion 280c is bent obliquely upward, and a hooking sliding portion 280d that slides on the edge 116a-1 ((b) of FIG. 24) of the hooking hole 116a is formed.

(Hanging string 290)
When the light source unit 200 is attached to the main body unit 100, the light source unit 200 is attached to the main body unit 100 after the hanging cord 290 (FIG. 31) is hooked on the suspension hole 112 c of the main body unit 100. This prevents the light source unit 200 from falling. Hanging string 290
(1) a connecting part 290a attached to the holding part 220 of the light source part 200;
(2) a tension part 290b having excellent tension such as a string, and a tension,
(3) The hook portion 290c has a substantially “J” shape that is hooked in the suspension hole 112c.
In the second embodiment, the connecting portion 290a is illustrated as having an “O” shape that is fixed together with the lighting device 270 by a bolt and a nut. However, the connecting portion 290a has a substantially “U” shape and is sandwiched. Alternatively, the connecting portion 290a may not be used and the tension portion 290b itself may be tied.

(Spring part 130)
The spring portion 130 (FIGS. 6 and 7) is a longitudinal leaf spring formed of an elastic material such as a stainless steel material or a spring steel plate. As shown in FIG. 6, the spring portion 130 includes a first flat portion L1 (flat portion), a first bent portion M1, a second flat portion L2, a second bent portion M2, a third flat portion L3, a third bent portion M3, A fourth flat portion L4, a fourth bent portion M4, an arc portion E, and a bent portion K are provided. The first bent portion M1, the second flat portion L2, the second bent portion M2, the third flat portion L3, the third bent portion M3 (projection portion), the fourth flat portion L4, the fourth bent portion M4, and the arc portion E. The bent portion K constitutes an arc-shaped portion.
(1) The 1st flat part L1 (fixed part) goes to a longitudinal direction from one edge part of a longitudinal shape. The first flat portion L1 is fixed to the attachment portion 112 with a screw 118.
(2) The first bending portion M1 is formed with the first bending radius R1 at the end of the first flat portion L1. (3) The second flat portion L2 is bent at the first angle θ1 with the first bending radius R1 and rises from the first flat portion L1. The second flat portion L2 becomes a movable shaft (FIG. 32).
(4) The second bending portion M2 is formed at the end of the second flat portion L2 with the second bending radius R2 in the direction opposite to the first bending radius R1.
(5) The third flat portion L3 is bent and extended to the acute second angle θ2 with the second bending radius R2. (6) The third bending portion M3 is formed at the end of the third flat portion L3 with the third bending radius R3 in the direction opposite to the second bending radius R2. The third bending portion M3 controls the sliding of the arc portion E by hitting the spring receiving portion 250a-2 of the coupling metal 250 immediately before the light source portion 200 is completely attached to the main body portion 100.
(7) The fourth flat portion L4 is bent and extended to the acute third angle θ3 with the third bending radius R3. (8) The fourth bending portion M4 is formed at the end of the fourth flat portion L4 with the fourth bending radius R4 in the direction opposite to the third bending radius R3.
(9) The arc portion E is bent into the obtuse fourth angle θ4 with the fourth bending radius R4, extends in the longitudinal direction toward the first flat portion L1, and is convex in the rising direction of the second flat portion L2. It is a part of. The arc portion E is a sliding portion that slides in contact with the edge of the spring insertion hole 250 a-1 of the connection fitting 250.
(10) The bent portion K (hook portion) is formed by bending the end of the arc portion E, and is hooked on the edge of the spring insertion hole 250a-1 of the connection fitting 250 ((b) in FIG. 32).

The second flat part L2 is a shaft part of an elastic action when the spring part 130 attaches the light source part 200.

The inner portion M4-1 of the fourth bending portion M4 contacts the edge of the spring insertion hole 250a-1 of the connection fitting 250 when the spring portion 130 holds the light source portion 200.

(Terminal block 120)
The terminal block 120 (FIG. 21) supplies power supplied from a commercial power source to the light source unit 200.

Next, a process of attaching the light source unit 200 to the main body unit 100 will be described. FIG. 32 is an attachment process diagram of the light source unit 200 to the main body unit 100 according to the second embodiment. 32A shows a state before the light source unit 200 is attached to the main body unit 100. FIG. 32B, the operator inserts the wire spring 280 of the light source unit 200 into the hooking hole 116a of the hooking metal 116 of the main body 100, and connects the bent part K (hooking part) of the spring part 130 to the connecting metal. It is in a state of being hooked on the edge of 250 spring insertion holes 250a-1. FIG. 32C shows a state in which the operator rotates the light source unit 200 from the state of FIG. 32B with the wire spring 280 inserted into the hooking hole 116a as the center of rotation. At this time, the spring portion 130 slides on the edge of the spring insertion hole 250a-1 of the coupling metal 250. FIG. 32D shows a state where the light source unit 200 is attached to the main body unit 100.

(State (a))
In FIG. 32A, the light source unit 200 and the main body unit 100 are in separate states. In the main body 100, the distance B (FIG. 24B) between the hooking hole 116 a (edge 116 a-1) of the main body 100 and the light source receiving portion 113 b is the upper surface of the holding portion 220 of the light source 200. And a distance A between the wire spring 280 and the hooking sliding portion 280d. This will be described later.

(State of (b) of FIG. 32)
Next, in FIG. 32 (b), the operator has inserted the wire spring 280 of the light source unit 200 into the hooking hole 116a of the hooking member 116 of the main body 100, and the bent portion K of the spring part 130 is connected to the connecting member. It is in a state of being hooked on the edge of 250 spring insertion holes 250a-1. In the wire spring 280, the hooking sliding portion 280d at the tip is in contact with the edge 116a-1 of the hooking hole 116a, and the distance B is larger than the distance A (B> A), so the pressing portion 280c is the hooking hole 116a. The edge 116a-1 is being pressed. Note that the distance A is the distance from the upper surface of the holding front portion 220a in FIG. 23 to the upper end 280d-1 of the hooking sliding portion 280d of the wire spring 280 (FIG. 30). The distance B is determined from the upper surface of the holding front part 220a (that is, the light source receiving part 113b) when the light source part 200 is mounted on the main body part 100 as shown in FIGS. 24 (b) and 32 (d). This is the distance to the edge 116a-1 of the hooking hole 116a.

The spring part 130 rotates while being elastically deformed so that the arc part E is perpendicular to the attachment part 112 with the second flat part L2 as the rotation center of the rotational movement with respect to the attachment part 112. Further, the bent portion K of the spring portion 130 is hooked on the edge of the spring insertion hole 250 a-1 of the connection fitting 250 of the light source portion 200.

32B, the hook portion 290c of the hanging strap 290 is hooked on the hanging hole 112c of the main body portion 100. In addition, the worker connects the terminal block connector 120 a of the main body 100 and the power connector 270 b of the light source unit 200. (The procedure may be such that the hook portion 290c of the suspension cord 290 is hooked in the suspension hole 112c, the wire spring 280 is inserted into the engagement hole 116a, and the spring portion 130 is inserted into the spring insertion hole 250a-1).

(State (c) of FIG. 32)
Next, FIG. 32C shows a state in which the operator rotates the light source unit 200 from the state of FIG. 32B with the wire spring 280 inserted into the hooking hole 116a as the center of rotation. A surface of the arc part E of the spring part 130 located on the main body part 100 side slides on the hole edge of the spring insertion hole 250a-1 by a spring restoring force.

In the spring portion 130, the arc portion E slides on the edge of the spring insertion hole 250a-1 of the coupling metal 250. The other wire spring 280 is hooked while the hook sliding portion 280d slides on the edge 116a-1 of the hook hole 116a when the operator rotates the light source unit 200 around the wire spring 280. It is inserted into the hole 116a. The operator further raises the right side of the light source unit 200 in the direction of the main body unit 100 while rotating the light source unit 200, and inserts the holding side surface unit 220 b and the cover claw unit 230 a of the light source unit 200 into the main body unit 100. At this time, the arc portion E of the spring portion 130 slides on the upper edge of the spring insertion hole 250a-1.

Since the wire spring 280 has a distance A shorter than the distance B, the pressing portion 280c is inserted while being elastically deformed, and the hooking hole 116a and the light source fixing portion 113 are pressed and held by the wire spring 280 and the light source lid portion 240. is doing.

(State (d) of FIG. 32)
Next, in FIG. 32D, when the operator pushes the light source unit 200 into the main body unit 100 so that the light source receiving unit 113b of the main body unit 100 and the cover contact unit 230b of the light source unit 200 are in contact with each other. The third bent part of the spring part 130 abuts on the spring receiving part 250 a-2 of the coupling metal 250, and the light source part 200 is attached to the main body part 100. At this time, in the spring part 130, immediately before the mounting state of the light source part 200 is completed, the third bending part M3 comes into contact with the spring receiving part 250a-2, and the sliding of the arc part E is suppressed. When the operator completes insertion of the light source unit 200 into the main body unit 100 (installation of the light source unit 200 is completed), an inner portion M4-1 of the fourth bent portion M4 of the spring unit 130 is a spring insertion hole of the connection fitting 250. Positioned against this edge, pressing against the upper edge of 250a-1. At this time, the spring constant when the spring portion 130 supports the edge of the spring insertion hole 250a-1 at the inner portion M4-1 (FIG. 33) is that the light source portion 200 is supported by the bent portion K in FIG. It is remarkably large with respect to the spring constant. This can be roughly estimated as a cantilever having the first flat portion L1 as a fixed end because the first flat portion L1 (fixed) is fixed to the main body portion 100 in the spring portion 130. In the spring portion 130, the linear distance (span) between the first bent portion M1 and the fourth bent portion M4 that hardly elastically deforms is, for example, 1/5 of the distance (span) between the first bent portion M1 and the bent portion K. About 1/6. In cantilever beams, the span affects the spring constant by the third power. Therefore, if the spring constant in the fourth bent portion M4 is 1/5, it is 125 times the spring constant in the bent portion K, and if it is 1/6, it is 216 times the spring constant in the bent portion K. For this reason, when the operator completes the insertion of the light source unit 200 into the main body unit 100, the inner portion M4-1 of the fourth bent portion M4 of the spring unit 130 is located above the spring insertion hole 250a-1 of the connection fitting 250. Can support the edges. That is, the weight of the light source unit 200 can be supported by the inner portion M4-1 of the fourth bent portion M4.
In the state of FIG. 32 (d), the lower surface 280d-1-1 (FIG. 30) of the wire spring 280 presses the edge 116a-1 by a restoring force to return in the direction of the arrow in FIG. 32 (d). is doing.

(How to remove)
Next, a method for removing the light source unit 200 from the main body unit 100 will be described. The method for removing the light source unit 200 is the reverse of the attaching method.
(1) First, the operator pulls down the side on which the spring part 130 is installed from the state in which the light source part 200 in FIG.
(2) Next, when the operator pulls down the light source unit 200 to the state shown in FIG. 32B, the connection between the terminal block connector 120a and the power connector 270b is released, and the hook unit 290c of the hanging strap 290 is moved to the main body. Then, the bent portion K of the spring portion 130 is removed from the spring insertion hole 250a-1 of the connecting fitting 250. (The hook portion 290c of the hanging cord 290 may be removed from the hanging hole 112c after the wire spring 280 is removed from the hook fitting 116).
(3) Finally, the operator pulls out the wire spring 280 in the direction opposite to the direction in which the light source unit 200 is inserted from the hook metal fitting 116, and removes the light source unit 200 from the main body unit 100.

Next, the elastic action (action effect) of the spring part 130 at the time of attachment will be described. FIG. 33 is an enlarged view of the periphery of the second flat portion L2 (movable shaft) of the spring portion 130 when the second embodiment is attached. In FIG. 33, the dotted line indicates the spring part 130 (referred to as the spring part 130a) in a state where it is not elastically deformed (the state shown in FIG. 32A), and the solid line holds the light source part 200 at the inner portion M4-1. The spring portion 130 (referred to as a spring portion 130b) in an elastically deformed state (state shown in FIG. 32D) is shown.

In FIG. 33, in the spring part 130b (solid line), the inner part M4-1 (indicated by a black circle) is equivalent to the inner part M4-1 of the spring part 130a (dotted line) (the inner part M4 in the spring part 130b (solid line)). Compared with the mark -1 and the mark position when the spring part 130a (dotted line) is returned to the state), it is as follows. That is, the spring part 130b (solid line) holds the light source part 200 (the connecting metal fitting 250) in a state where it is elastically deformed by the dimension A horizontally in the direction of the first flat part L1 and the dimension B in the lower direction.

(Relationship between spring part 130 sag and elastic force)
The spring part 130 is used as shown in FIG. Therefore, when a sag occurs, it affects the direction in which the second angle θ3 in FIG. 24 increases. This effect acts in the direction in which the dimension A increases in FIG. 33, and as a result, the spring part 130 when the sag occurs occurs. It is possible to suppress a decrease in elastic force that supports the light source unit 200 (the connecting metal fitting 250). As described above, even if the spring portion 130 is deteriorated (sagging) due to the shape feature of the spring portion 130, the elastic force (deflection) is increased without causing a decrease in the elastic force. ), The light source unit 200 can be held. The connection fitting 250 is connected to the spring portion 130, and may have a shape other than the second embodiment as long as the dimension A and the dimension B do not become negative.

In the present embodiment, a linear spring 280 that is provided in the light source unit 200 and is inserted into a hook metal fitting of the main body unit 100 and grips a part of the main body unit 100, and the light source unit 200 provided in the main body unit 100. Provided is a coupling mechanism in which the main body section 100 and the light source section 200 are reliably and easily coupled by the spring section 130 that slides on the coupling metal 250 and pulls up the light source section 200, and a lighting fixture including the coupling mechanism. Can do.

In the present embodiment, the hook metal fitting 116 and the connection metal fitting 250 are arranged so that the wire spring 280 and the spring portion 130 are connected in an elastically deformed state, and the light source unit 200 includes the wire spring 280 and the spring portion 130. It is possible to provide a coupling mechanism that is held by a restoring force and a lighting fixture that includes the coupling mechanism.

Further, in this embodiment, the lighting apparatus 1000 having an inverted triangular cross section has been described. However, the main body 100 and the light source section 200 are not integrated, and the lighting apparatus attaches the light source section 200 to the main body section 100. If it exists, it may be an embedded type, a direct-mounted type, or a substantially square shape such as a ceiling square type.

In the present embodiment, the specifications are described in which the spring portion 130 and the hook metal fitting 116 are provided on the main body portion 100 side, and the connection metal fitting 250 and the wire spring 280 are provided on the light source portion 200 side. The specification may include a hook spring, the light source unit may include a spring portion and a hook metal fitting, or one of them may include a spring portion and the other may include a metal fitting portion.

Conventionally, there is a problem that the connection between the light source part and the main body part is not easy and the connection part is likely to deteriorate. However, in the lighting fixture of Embodiment 2, the main body 100 has the spring part 130 and the hook metal fitting 116, and the light source part 200 has the connecting metal fitting 250 and the wire spring 280, so that the light source part 200 and the main body part 100 can be easily arranged. It is possible to provide a connecting mechanism that can be connected and the connecting portion is less likely to deteriorate.

1000, 2000 luminaire, 100 body part, 111 recess, 112 mounting part, 112a power supply hole, 112b fixing hole, 112c hanging hole, 112c-1 metal fitting, 113 light source fixing part, 113a light source insertion part, 113b light source receiving part, 114 inclined part, 115 lid part, 116 hook metal fitting, 116a hook hole, 118 screw, 120 terminal block, 120a terminal block connector, 130, 130a, 130b spring part, 200 light source part, 210 LED unit, 220 holding part, 220a holding Front part, 220b holding side face part, 220c connecting bracket mounting base, 220c-1 screw, 220d hook spring holding part, 220e hook spring control part, 230 cover part, 230a cover claw part, 230b cover contact part, 230c cover diffusion part 240 Light source cover part, 250 connecting metal fitting, 250a spring insertion part, 250a-1 spring insertion hole, 250a-1-1 opening edge part, 250a-2 spring receiving part, 250a-3 non-stop receiving part, 250b metal fitting fixing part, 250b -1 Sliding assist part, 260 slip-off preventing part, 260a fitting part, 260b engaging cover part, 260c abutting part, 261a clip part, 270 lighting device, 270a lighting device body part, 270b power connector, 270c power cable, 280 wire spring, 280a insertion part, 280b holding part, 280c pressing part, 280d hooking sliding part, 290 hanging string, 290a connecting part, 290b tension part, 290c hook part, L1 first flat part, L2 second flat part , L3 3rd flat part, L4 4th flat part, M1 1st bending part, M2 2nd Lower portion, M3 third bent portion, M4 fourth bent portion, E arcuate portion, K bend.

Claims

In the spring for an illuminating device, which is a longitudinal plate spring used in the illuminating device,
A flat part extending in the longitudinal direction;
An illuminating device spring comprising: an arc-shaped portion having an arc shape starting from an end of the flat portion, the arc-shaped portion having a projecting portion bent into a projecting shape at a starting position of the arc shape .
The lighting device spring is:
A first flat portion as the flat portion;
The arc-shaped portion is
A first bent portion formed at a first bending radius R1 at the end of the first flat portion;
A second flat portion that is bent at a first angle with the first bending radius R1 and rises from the first flat portion;
A second bend formed at the end of the second flat portion with a second bend radius R2 opposite to the first bend radius R1,
A third flat portion extending by being bent at an acute second angle at the second bending radius R2,
A third bending portion which is the protrusion formed at the end of the third flat portion with a third bending radius R3 in a direction opposite to the second bending radius R2,
A fourth flat portion extending by being bent at an acute third angle with the third bending radius R3;
A fourth bend formed at the end of the fourth flat portion with a fourth bend radius R4 opposite to the third bend radius R3;
An arc-shaped arc portion which is bent at an obtuse fourth angle at the fourth bending radius R4 and extends in the longitudinal direction toward the first flat portion and is convex in the rising direction of the second flat portion;
The lighting device spring according to claim 1, further comprising a bent portion in which an end portion of the arc portion is bent.
The first flat portion is
Fixed to the lighting device,
The lighting device spring is:
The spring for a lighting device according to claim 2, wherein an elastic force is generated based on a displacement amount of the fourth bending portion that is generated when the fourth bending portion abuts against a mating part.
The lighting device spring is:
When the sag, which is a permanent deformation, occurs, the amount of displacement generated by the fourth bending portion coming into contact with the mating part increases due to a shape change based on the sag. 4. The spring for lighting device according to 3.
An illumination device comprising the illumination device spring according to any one of claims 1 to 4.
In a lighting device comprising a light source part and a main body part, wherein the light source part is detachably mounted facing the main body part,
A spring part that is a longitudinal leaf spring attached to either the light source part or the main body part, and a flat part that extends in the longitudinal direction, and the light source part and the main body part from the end of the flat part A circular arc-shaped portion that is convex toward the side that cannot be attached, and a spring portion that is attached to either the light source portion or the main body portion at the flat portion;
The connecting part that is attached to the light source part and the main body part to which the spring part is not attached, and an opening that penetrates the arc-shaped part is formed, and the arc-shaped part near the end of the flat part An illuminating device comprising: a connecting portion in which a peripheral arc-shaped portion is a displacement with respect to a no-load state and a peripheral edge of the opening abuts on the near-arc-shaped portion.
The arc-shaped portion of the spring portion is
The lighting device according to claim 6, wherein a bent portion is formed at an end opposite to the flat portion.
The light source unit and the main body unit are:
The lighting device according to claim 7, wherein a plurality of the spring portions and each connection portion corresponding to each spring portion are attached.
The lighting device includes:
The lighting device according to claim 8, wherein the weight of the light source unit is supported by the bent portion being caught on a peripheral edge of the opening in a state where the light source unit is detached from the main body unit.
The spring portion is
Attached to the main body,
The connecting portion is
The illumination device according to any one of claims 6 to 9, wherein the illumination device is attached to the light source section.
In a luminaire comprising a longitudinal light source part and a longitudinal body part, the light source part being detachably mounted facing the body part,
The body part is
A longitudinal leaf spring having a flat portion extending in the longitudinal direction and an arc-shaped arc-shaped portion projecting from the end of the flat portion toward the light source portion; A leaf spring fixed at the flat portion from one end;
An opening to be hooked by the mating part is formed, and has a hooking tool disposed from the other end in the longitudinal direction,
The light source unit is
An opening penetrating the arc-shaped portion of the leaf spring is formed, and an edge of the opening is formed in a state where the arc-shaped portion that is the arc-shaped portion near the end of the flat portion is displaced with respect to the no-load state. A connecting portion that contacts the arcuate portion in the vicinity;
It is the counterpart part that is hooked on the opening of the hooking tool, and has an elastic material pressing member that hooks on the opening of the hooking tool and presses the edge of the opening of the hooking tool in an elastically deformed state. Lighting equipment.
The pressing tool is
It is a wire spring, The lighting fixture of Claim 11 characterized by the above-mentioned.