Lighting apparatus
The lighting fixture uses dual biasing members to securely attach the lamp body to the frame, addressing detachment issues and facilitating easy installation and removal, even with heavy components.
Patent Information
- Application Number
- JP2024101470
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2026-01-13
AI Technical Summary
The existing lighting fixtures face issues where the inner frame, when heavier, is prone to detachment from the outer frame due to insufficient support from leaf springs, and increasing spring elasticity complicates removal.
A lighting fixture design incorporating a first and second biasing member, with specific geometric configurations, supports the lamp body relative to the frame, distributing load to prevent plastic deformation and facilitate secure attachment.
The design ensures the lamp body is firmly attached to the frame, allowing easy installation and removal while preventing deformation, even with heavy components like heat sinks.
Smart Images

Figure 2026003495000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a lighting fixture. [Background technology]
[0002] The recessed lighting fixture of Patent Document 1 comprises an inner frame on which the reflector, reflector holder, and socket holder are placed and supported, and an outer frame into which the inner frame is fitted and fixed, and a leaf spring in the outer frame prevents the inner frame from falling. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-268001 Summary of the Invention [Problem to be solved by the invention]
[0004] If the weight of the inner frame increases, the leaf spring cannot support the inner frame, making it more likely to come off the outer frame. Increasing the elasticity of the leaf spring increases the force with which the leaf spring holds the inner frame, making it harder for the inner frame to come off the outer frame, but requires a greater external force to remove the inner frame from the outer frame.
[0005] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a lighting fixture in which the lighting fixture body can be attached more firmly to an object to which it is attached. [Means for solving the problem]
[0006] The lighting fixture according to the present invention comprises a lamp body, a frame body, and a biasing member. The lamp body emits light in a first direction. The frame body is fixed to an object to be attached. The biasing member is disposed between the lamp body and the frame body and biases the lamp body relative to the frame body in a second direction opposite to the light emission direction. The biasing member includes a first biasing member and a second biasing member. The first biasing member contacts the lamp body. The second biasing member is located on the opposite side of the first biasing member from the lamp body.
[0007] In the lighting fixture according to the present invention, the first biasing member preferably has a first portion and a second portion. The first portion preferably extends in the second direction toward the frame. The second portion preferably extends from an end of the first portion in the second direction away from the frame and supports the lamp body. The support surface of the second portion that supports the lamp body is preferably flat.
[0008] In the lighting fixture according to the present invention, it is preferable that the second biasing member has a third portion that extends in the second direction while curving toward the frame body.
[0009] In the lighting fixture according to the present invention, the frame preferably has an inner circumferential surface facing the lamp body and an outer circumferential surface that is farther from the lamp body than the inner circumferential surface. The first biasing member preferably has a first connecting portion. The first connecting portion preferably is attached to the outer circumferential surface, extends from the outer circumferential surface toward the inner circumferential surface, and connects to the first portion. The second biasing member preferably has a second connecting portion. The second connecting portion preferably is attached to the outer circumferential surface, extends from the outer circumferential surface toward the inner circumferential surface, and connects to the third portion.
[0010] In the lighting fixture according to the present invention, it is preferable that the lighting fixture further includes a reflecting member that reflects light emitted from the lighting fixture body. The reflecting member preferably has a flange that extends in a direction intersecting the first direction. The frame preferably has a restricting portion that restricts movement of the flange in the second direction.
[0011] In the lighting fixture according to the present invention, it is preferable that the lighting fixture body includes a heat sink. [Effects of the Invention]
[0012] According to the present invention, it is possible to more firmly attach the lamp body to the object to which it is attached. [Brief explanation of the drawings]
[0013] [Figure 1] 1 is a perspective view showing a lighting fixture according to an embodiment of the present invention. [Figure 2] FIG. 10 is a diagram showing a lighting fixture with a lighting body attached to a frame body. [Figure 3] FIG. 2 is a diagram showing the lamp body separated from the frame body. [Figure 4] 10A and 10B are diagrams showing the fixing spring in a state where the lamp body is attached to the frame body. [Figure 5] 10A and 10B are diagrams showing the fixing spring when the lamp body is being attached to or detached from the frame body. [Figure 6] 10 is a diagram showing the fixing spring in a state where the lamp body has been removed from the frame body. FIG. DETAILED DESCRIPTION OF THE INVENTION
[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters and description thereof will not be repeated.
[0015] A lighting fixture 200 according to this embodiment will be described with reference to FIG. 1. FIG. 1 is a perspective view showing lighting fixture 200 according to this embodiment. Lighting fixture 200 is attached to an attachment target such as a building. Typically, the attachment target is a ceiling (not shown) inside a room. However, the attachment target may also be a side wall inside a room. Lighting fixture 200 may also be attached to an attachment target outside a room. Below, a description will be given of lighting fixture 200 when attached to a ceiling.
[0016] As shown in FIG. 1, the lighting fixture 200 includes a lighting fixture body 80, a frame body 103 to be attached to an attachment target, a plurality of mounting springs 105 that fix the frame body 103 to an attachment position on the attachment target, and a plurality of fixing springs 120 (FIGS. 2 to 6). The lighting fixture body 80 includes a light source unit 111 and a heat sink 70. As an example, the lighting fixture body 80 has a substantially cylindrical shape. The frame body 103 has an annular shape. The frame body 103 is fixed to the ceiling by the mounting springs 105. The lighting fixture body 80 is located inside the frame body 103. When the lighting fixture 200 is attached to a ceiling in a room, the central axis of the lighting fixture body 80 extends along the vertical direction Z. The center of the frame body 103 substantially coincides with the central axis of the lighting fixture body 80. A radial direction R of the frame body 103 is perpendicular to the vertical direction Z.
[0017] As shown in FIG. 1, the light source unit 111 emits light vertically downward from the light source unit 111. The vertically downward direction is the light emission direction of the light source unit 111 and is an example of a first direction. Specifically, the light source unit 111 includes a light source module formed of a substrate (not shown) and a plurality of light-emitting elements arranged on the substrate, and a substantially cylindrical housing 125 that houses the light source module. Typically, the light-emitting elements are LEDs (Light Emitting Diodes). The light-emitting elements are placed on a mounting surface of the substrate and emit light toward the opposite side from the mounting surface. The light emitted from the light-emitting elements is diffused by a diffusing member (not shown) and is emitted from below the light source unit 111.
[0018] The housing 125 includes a cone 107 having a truncated cone shape. The cone 107 is provided below the light source unit 111 in the housing 125. For example, the cone 107 includes a reflecting mirror 107A. The reflecting mirror 107A reflects the light emitted from the light source unit 111. For example, the reflecting mirror 107A is a reflecting mirror having a truncated cone shape. The reflecting mirror 107A is disposed on the inner circumferential surface of the cone 107. The reflecting mirror 107A reflects a portion of the light emitted from the light source unit 111. The light emitted from the light source unit 111 is further diffused by reflection from the reflecting mirror 107A. Note that the reflecting mirror 107A may not be disposed on the inner circumferential surface of the cone 107, and the inner circumferential surface may be painted white or black.
[0019] The heat sink 70 is provided above the housing 125. For example, the heat sink 70 is fixed to the top of the light source unit 111 via a heat dissipation sheet (not shown). The heat sink 70 dissipates heat using a plurality of fins, suppressing a rise in temperature of the light source unit 111. The heat sink 70 is made of a material with high thermal conductivity, and is preferably made of, for example, a metal. Among metals, it is preferably made of, for example, aluminum or an aluminum alloy, taking into consideration ease of molding and weight reduction of the lighting fixture 200.
[0020] The lighting fixture body 80 is supported by the frame body 103 via a plurality of fixing springs 120 (FIGS. 2 to 6). In this embodiment, the plurality of fixing springs 120 are arranged between the lighting fixture body 80 and the frame body 103. Each of the plurality of fixing springs 120 biases the lighting fixture body 80 upward, opposite to downward, relative to the frame body 103. The upward direction is an example of the second direction.
[0021] Next, the fixing spring 120 will be described with reference to Figs. 2 to 4. Fig. 2 is a diagram showing the lighting fixture 200 in a state where the lighting fixture main body 80 is attached to the frame body 103. Fig. 2 shows a cross section along the vertical direction passing through the central axis of the lighting fixture main body 80 and the fixing spring 120. Fig. 3 is a diagram showing the lighting fixture main body 80 in a state where it has been separated from the frame body 103. Fig. 4 is an enlarged view of a part of Fig. 2, focusing on the fixing spring 120. Fig. 4 is a diagram showing the fixing spring 120 in a state where the lighting fixture main body 80 is attached to the frame body 103.
[0022] As shown in FIG. 4, the fixing spring 120 is made of an elastic metal. The fixing spring 120 is formed by bending a thin plate-shaped member. Normally, when pressure is applied to the fixing spring 120, the fixing spring 120 attempts to return to its original state due to a restoring force (elastic deformation). On the other hand, when pressure exceeding a certain magnitude is applied to the fixing spring 120, the fixing spring 120 will not return to its original state (plastic deformation). The fixing spring 120 is made of a material that is not easily susceptible to plastic deformation. Typically, three fixing springs 120 are fixed to the frame body 103 (FIGS. 1 and 3), but the number of fixing springs 120 may be two or more. The multiple fixing springs 120 are arranged at approximately equal intervals in the circumferential direction C of the frame body 103. The lighting fixture main body 80 is placed on the multiple fixing springs 120. Therefore, the lighting fixture main body 80 is movable in the circumferential direction C of the frame body 103.
[0023] The fixed spring 120 includes a first spring 121 and a second spring 122. The first spring 121 contacts the lamp body 80. The second spring 122 is located on the opposite side of the first spring 121 from the lamp body 80. In other words, the second spring 122 is provided further outward than the first spring 121 in the radial direction R. The fixed spring 120 is an example of a biasing member. The first spring 121 is an example of a first biasing member. The second spring 122 is an example of a second biasing member. The second spring 122 contacts the first spring 121 and supports the first spring 121.
[0024] In this way, the lighting fixture body 80 is supported by the first spring 121 and the second spring 122. Therefore, the load of the lighting fixture body 80 is distributed to the first spring 121 and the second spring 122, so that pressure is not applied to the first spring 121 or the second spring 122 to the point where they undergo plastic deformation. As a result, compared to a case where the lighting fixture body 80 is supported by only one of the first spring 121 and the second spring 122, the lighting fixture body 80 can be more firmly attached to the frame 103 fixed to the ceiling.
[0025] In particular, even when a heavy object such as a heat sink 70 is provided on the lamp body 80, the fixing spring 120 is less likely to undergo plastic deformation, and the lamp body 80 can be firmly attached to the frame 103.
[0026] 3, to attach the lamp body 80 to the frame body 103, the lamp body 80 is brought close to the frame body 103 from the lower side thereof, and the heat sink 70 and the housing 125 of the lamp body 80 are passed through the inside of the frame body 103 in this order. Details of the attachment and detachment of the lamp body 80 will be described later using FIGS. 4 to 6.
[0027] 4, when the lamp body 80 is attached to the frame 103, the fixing spring 120 comes into contact with and supports the housing 125. Specifically, the substantially cylindrical housing 125 includes a side surface (outer peripheral surface) 125A extending along the circumferential direction C, and a flange 125C protruding outward from the side surface 125A. The flange 125C is provided at the lower end of the side surface 125A.
[0028] Of the fixed spring 120, the first spring 121 has a first portion 131 and a second portion 132. The first portion 131 extends upward toward the frame body 103. Specifically, the first portion 131 extends upward while facing inward in the radial direction R of the frame body 103. The second portion 132 extends from an upper end of the first portion 131 in a direction away from the frame body 103. Specifically, the second portion 132 extends upward from an upper end of the first portion 131 while facing outward in the radial direction R of the frame body 103. The second portion 132 has a support surface 132R that supports the lighting fixture body 80. The support surface 132R is flat. In other words, the inclination of the support surface 132R with respect to the vertical direction Z is constant. Typically, the first spring 121 has a shape that is bent in a "<" shape.
[0029] Since the second portion 132 extends upward while facing outward in the radial direction R of the frame body 103, part of the load of the lamp body 80 acting downward on the second portion 132 is dispersed in the direction facing outward in the radial direction R. When the support surface 132R is flat, the load of the lamp body 80 is dispersed at a constant rate regardless of the contact position of the lamp body 80 on the support surface 132R, making it possible to make it difficult for plastic deformation to occur in the vertical direction in the first portion 131 and the second portion 132.
[0030] Of the fixed spring 120, the second spring 122 has a third portion 133 that extends upward while curving toward the frame body 103. Specifically, the third portion 133 extends upward while curving convexly toward the inside of the radial direction R of the frame body 103. For example, the third portion 133 curves more gently than the connecting portion between the first portion 131 and the second portion 132 of the first spring 121. Specifically, the curvature of the third portion 133 is smaller than the curvature of the connecting portion between the first portion 131 and the second portion 132 of the first spring 121. Typically, the second spring 122 has a "U"-shaped curve.
[0031] In this way, by providing the second spring 122, which curves more gently than the first spring 121, further outward in the radial direction R than the first spring 121, when a load is applied to the second portion 132 of the first spring 121, the first portion 131 and the second portion 132 are pressed inward in the radial direction R by the third portion 133 of the second spring 122, and the first spring 121 and the second spring 122 elastically deform outward in the radial direction R. At this time, the first spring 121 elastically deforms outward in the radial direction R in a state in which a biasing force is applied inward in the radial direction R by the second spring 122. As a result, unlike a case in which the second spring 122 is not provided, the first spring 121 is prevented from elastically deforming outward in the radial direction R more than necessary and can apply a biasing force inward in the radial direction R. As a result, the fixing spring 120 can hold the lamp body 80 more firmly to the frame body 103 while making it easier to remove the lamp body 80 from the frame body 103.
[0032] In this embodiment, the frame 103 has an outer peripheral surface 103A, an inner peripheral surface 103B, an upper surface 103C, and a lower surface 103D. The inner peripheral surface 103B is a surface that faces the lamp body 80. The outer peripheral surface 103A is located farther outward in the radial direction R from the lamp body 80 than the inner peripheral surface 103B, and is a surface that faces outward in the radial direction R. The upper surface 103C connects the outer peripheral surface 103A and the inner peripheral surface 103B, and is a surface that faces upward. The lower surface 103D connects the outer peripheral surface 103A and the inner peripheral surface 103B, and is a surface that faces downward.
[0033] In this embodiment, the first spring 121 and the second spring 122 are attached to the outer peripheral surface 103A. Specifically, the first spring 121 is attached to the outer peripheral surface 103A and has a first connecting portion 140A extending from the outer peripheral surface 103A toward the inner peripheral surface 103B. More specifically, the first connecting portion 140A includes a first mounting portion 151 attached to the outer peripheral surface 103A and a first extending portion 141 extending from the first mounting portion 151. The second spring 122 is attached to the outer peripheral surface 103A and has a second connecting portion 140B extending from the outer peripheral surface 103A toward the inner peripheral surface 103B. More specifically, the second connecting portion 140B includes a second mounting portion 152 attached to the outer peripheral surface 103A and a second extending portion 142 extending from the second mounting portion 152. The first mounting portion 151 extends in the vertical direction along the outer peripheral surface 103A. The first mounting portion 151 is attached to the outer peripheral surface 103A, for example, by screwing. The second mounting portion 152 extends in the vertical direction along the outer peripheral surface 103A. The second mounting portion 152 is disposed outward of the first mounting portion 151 in the radial direction R and is attached to the outer peripheral surface 103A by screwing. The first mounting portion 151 and the second mounting portion 152 may be attached to the outer peripheral surface 103A by means other than screwing. The first spring 121 and the second spring 122 may be attached to, for example, the upper surface 103C, rather than to the outer peripheral surface 103A. In this case, the first extending portion 141 and the second extending portion 142 function as the first mounting portion 151 and the second mounting portion 152, respectively.
[0034] The first extending portion 141 connects the first mounting portion 151 and the first section 131. The first extending portion 141 extends from the outer peripheral surface 103A toward the inner peripheral surface 103B along the upper surface 103C. Specifically, an outer end of the first extending portion 141 in the radial direction R connects to an upper end of the first mounting portion 151. An inner end of the first extending portion 141 in the radial direction R connects to a lower end of the first section 131.
[0035] The second extending portion 142 connects the second mounting portion 152 and the third portion 133. The second extending portion 142 extends from the outer peripheral surface 103A toward the inner peripheral surface 103B along the upper surface 103C. Specifically, an outer end of the second extending portion 142 in the radial direction R connects to an upper end of the second mounting portion 152. An inner end of the second extending portion 142 in the radial direction R connects to a lower end of the third portion 133.
[0036] The first connecting portion 140A is bent, for example, by 90 degrees at a connecting portion P1 between the first mounting portion 151 and the first extending portion 141. The second connecting portion 140B is bent, for example, by 90 degrees at a connecting portion P2 between the second mounting portion 152 and the second extending portion 142. At this time, the connecting portion P1 functions as a fulcrum for the first spring 121. The connecting portion P2 functions as a fulcrum for the second spring 122. In other words, the first spring 121 and the second spring 122 support the lamp body 80 with the upper end of the outer circumferential surface 103A as a fulcrum. In other words, the support surface 132R of the first spring 121 for the lamp body 80 is spaced apart from the connecting portion P1 in the radial direction R. As a result, when attaching or detaching the lighting fixture body 80, the first spring 121 can be bent outward in the radial direction R with a small force, with the connection part P1 as the fulcrum, making it possible to easily attach or detach the lighting fixture body 80.
[0037] When the first connection portion 140A is bent along the upper surface 103C and the outer peripheral surface 103A, the load of the lamp body 80 is received by the entire surface of the upper surface 103C via the first spring 121, so the pressure applied to the first spring 121 is smaller than when the load is received by a portion of the upper surface 103C, and the first spring 121 is less likely to undergo plastic deformation in the vertical direction. Similarly, when the second connection portion 140B is bent along the upper surface 103C and the outer peripheral surface 103A, the load of the lamp body 80 is received by the entire surface of the upper surface 103C via the second spring 122, so the pressure applied to the second spring 122 is smaller than when the load is received by a portion of the upper surface 103C, and the second spring 122 is less likely to undergo plastic deformation.
[0038] Next, the attachment and detachment of the lamp body 80 will be described with reference to Fig. 4 to Fig. 6. Fig. 5 is a diagram showing the fixing spring 120 when the lamp body 80 is in the middle of being attached to or detached from the frame body 103. Fig. 6 is a diagram showing the fixing spring 120 when the lamp body 80 has been detached from the frame body 103.
[0039] First, removal of the lamp body 80 will be described. When the lamp body 80 attached to the frame body 103 is removed from the frame body 103 as shown in Fig. 4, the lamp body 80 is pulled downward with a predetermined force F1 relative to the frame body 103. As a result, the force F1 is also applied to the support surface 132R of the first spring 121. A portion of the force F1 applied to the support surface 132R is converted into a component force F2 acting outward in the radial direction R. When the lamp body 80 is supported on the support surface 132R, the remaining portion of the force F1 acts on the upper surface 103C of the frame body 103 via the fixed spring 120.
[0040] When a component force F2 acts on the first spring 121 together with a reaction force from the upper surface 103C, as shown in FIG. 5, the first spring 121 and the second spring 122 elastically deform so as to rotate outward in the radial direction R around the connection points P1 and P2, respectively. As a result, the contact position of the lamp body 80 on the support surface 132R moves more inward in the radial direction R on the support surface 132R. When the contact position of the lamp body 80 on the support surface 132R reaches the outer edge of the lower end surface 125B of the flange 125C of the housing 125, the support surface 132R no longer supports the lamp body 80. Specifically, the lower end of the support surface 132R, which is the connection portion between the first portion 131 and the second portion 132, comes into contact with the outer peripheral surface of the flange 125C. When the lamp body 80 is further pulled downward from this state, the outer peripheral surface of the flange portion 125C and the first spring 121 slide against each other, and the lamp body 80 (housing 125) moves downward.
[0041] 6, when the first spring 121 reaches the upper end of the outer peripheral surface of the flange portion 125C, the first spring 121 and the second spring 122 are elastically deformed by their restoring forces so as to rotate inward in the radial direction R around the connection portions P1 and P2, respectively. As a result, the first spring 121 and the lamp body 80 (housing 125) come into contact with and slide against each other, and the lamp body 80 (housing 125) moves further downward and passes through the inside of the frame body 103.
[0042] On the other hand, when attaching the lamp body 80 to the frame body 103, the lamp body 80 passes upward inside the frame body 103. At this time, for example, if the upper end of the heat sink 70 (not shown) comes into contact with the first portion 131 of the first spring 121, part of the force pushing the lamp body 80 upward is converted into a component force acting outward in the radial direction R due to the inclination of the first portion 131, in the opposite manner to removing the lamp body 80. As a result, similar to removing the lamp body 80, the first spring 121 and the second spring 122 elastically deform so as to rotate outward in the radial direction R around the connection portions P1 and P2, respectively. Then, the lamp body 80 (housing 125) moves upward while sliding on the end of the first spring 121 below the support surface 132R, which is the connection portion between the first portion 131 and the second portion 132 (FIG. 5).
[0043] Thereafter, when the connection portion between the first portion 131 and the second portion 132 reaches the flange portion 125C of the housing 125, the first spring 121 and the second spring 122 move to the end face 125B side while being elastically deformed along the flange portion 125C by the elastic force. At this time, the support surface 132R comes into contact with the end face 125B of the housing 125 and supports the lighting fixture main body 80 (housing 125).
[0044] 4 to 6, cone 107 further has flange 107B. Flange 107B is provided at the lower end of cone 107. Flange 107B extends outward in the radial direction R from the outer circumferential surface of cone 107. Specifically, flange 107B has a ring shape that surrounds the periphery of the outer circumferential surface of cone 107.
[0045] On the other hand, the frame body 103 has a restricting portion 103E. Specifically, the restricting portion 103E is formed by a wall portion 103a extending upward from a lower surface 103D of the frame body 103, and a restricting surface 103b extending inward in the radial direction R from the wall portion 103a and connected to an inner circumferential surface 103B.
[0046] The restricting portion 103E restricts the upward movement of the flange portion 107B. By providing the restricting portion 103E, the position of the lighting fixture body 80 relative to the ceiling can be stabilized. Specifically, the flange portion 107B has a lower surface 107c that is connected to the lower end of the reflecting mirror 107A and extends outward in the radial direction R, an outer peripheral surface 107b that extends upward from the lower surface 107c, and an upper surface 107a that extends inward in the radial direction R from the outer peripheral surface 107b and is connected to the outer surface of the reflecting mirror 107A in the radial direction R. The outer peripheral surface 107b of the flange portion 107B is located outward in the radial direction R from the inner peripheral surface 103B of the frame body 103 and inward from the wall portion 103a of the restricting portion 103E.
[0047] 4, when the lamp body 80 is attached to the frame body 103, the upper surface 107a of the flange portion 107B faces the restricting surface 103b of the restricting portion 103E. Therefore, even if the lamp body 80 is biased upward relative to the frame body 103 by the fixing spring 120, the restricting surface 103b restricts the upward movement of the flange portion 107B.
[0048] In the present embodiment, the first spring 121 and the second spring 122 are configured to have different shapes, but this is not limiting, and the first spring 121 and the second spring 122 may have the same shape. For example, if the second spring 122 has the same shape as the first spring 121, the lamp body 80 can be attached more firmly to the frame body 103, making it less likely that the lamp body 80 will come off the frame body 103.
[0049] In this embodiment, the lighting device 200 has a substantially cylindrical shape, but is not limited thereto, and the lighting device 200 may have, for example, a substantially rectangular parallelepiped shape. For example, the lighting device 200 may have a shape that is elongated in the horizontal direction.
[0050] In the present embodiment, the support surface 132R is in contact with the end surface 125B of the flange 125C to support the lamp body 80, but this is not limiting, and the support surface 132R may be in contact with a surface other than the end surface 125B to support the lamp body 80. For example, the housing 125 may not be provided with the flange 125C, and a surface extending inward in the radial direction R from the lower end of the side surface 125A may be in contact with the support surface 132R to support the lamp body 80.
[0051] In the present embodiment, the first spring 121 and the second spring 122 are configured to be attached to the outer peripheral surface 103A of the frame body 103, but this is not limiting, and the first spring 121 and the second spring 122 may be attached, for example, to the inner peripheral surface 103B of the frame body 103. In this case, the first connecting portion 140A of the first spring 121 and the second connecting portion 140B of the second spring 122 may not be provided with the first extending portion 141 and the second extending portion 142, respectively.
[0052] The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above embodiments and can be implemented in various forms without departing from the spirit of the present invention. Furthermore, the components disclosed in the above embodiments can be modified as appropriate. For example, some of the components shown in one embodiment may be added to the components of another embodiment, or some of the components shown in one embodiment may be deleted from the embodiment.
[0053] Furthermore, the drawings mainly show each component in a schematic manner to facilitate understanding of the invention, and the thickness, length, number, spacing, etc. of each component shown in the drawings may differ from the actual ones due to the convenience of creating the drawings. Furthermore, the configuration of each component shown in the above embodiment is merely an example and is not particularly limited, and it goes without saying that various modifications are possible within a range that does not substantially deviate from the effects of the present invention. [Industrial Applicability]
[0054] The present invention can be used in the field of lighting fixtures. [Explanation of symbols]
[0055] 70: Heat sink 80:Lighting body 103: Frame 103A: Outer surface 103B: Inner surface 103E: Regulation Department 107: Cone (reflective material) 107B:Tsubabe 120: Fixed spring 121: First spring 122: Second spring 131 :1st part 132:Second part 132R: Support surface 133: 3rd part 140A: First connection 140B: Second connection part 200: Lighting equipment R: Radial direction Z: Vertical direction
Claims
1. a lighting fixture body that emits light in a first direction; a frame body fixed to an attachment object; a biasing member disposed between the lamp body and the frame body and biasing the lamp body relative to the frame body in a second direction opposite to the light emission direction; Equipped with The biasing member is a first biasing member that contacts the lamp body; a second biasing member located on the opposite side of the lamp body side with respect to the first biasing member; Including, lighting fixtures.
2. The first biasing member is a first portion extending in the second direction and toward the frame body; a second portion extending from an end of the first portion on the second direction side in a direction away from the frame body and supporting the lamp body; and The lighting fixture according to claim 1 , wherein a support surface of the second portion that supports the lighting fixture body is a flat surface.
3. The lighting fixture according to claim 2 , wherein the second biasing member has a third portion that extends in the second direction while curving toward the frame body.
4. The frame body is an inner circumferential surface facing the lamp body; an outer peripheral surface that is farther from the lamp body than the inner peripheral surface; and The first biasing member is attached to the outer circumferential surface, a first connection portion extending from the outer circumferential surface toward the inner circumferential surface and connected to the first portion; The second biasing member is attached to the outer circumferential surface, The lighting device according to claim 3 , further comprising a second connecting portion extending from the outer circumferential surface toward the inner circumferential surface and connecting to the third portion.
5. The lamp body further includes a reflecting member that reflects the light emitted therefrom, the reflecting member has a flange portion extending in a direction intersecting the first direction, The lighting fixture according to claim 1 , wherein the frame body has a restricting portion that restricts movement of the flange portion in the second direction.
6. The lighting fixture according to claim 1 , wherein the lighting body includes a heat sink.
Citation Information
Patent Citations
Recessed luminaire
JP2005268001A