阅读说明：本技术 照明灯及照明灯的框状体 (Illuminating lamp and frame body thereof ) 是由 大塚玄士 落合良平 于 2021-03-22 设计创作，主要内容包括：照明灯的框状体具有：第一卡合部,其设置于第一端部,通过在开设于板状部件的贯通孔的第一缘部处夹入板状部件而与板状部件卡合；以及第二卡合部,其设置于第二端部,通过在板状部件的贯通孔的第二缘部处夹入板状部件而与板状部件卡合。(The frame body of the lighting lamp is provided with: a first engaging portion provided at the first end portion and engaging with the plate-like member by sandwiching the plate-like member between first edge portions of through holes provided in the plate-like member; and a second engaging portion provided at the second end portion and engaging with the plate-like member by sandwiching the plate-like member between the second edge portions of the through-holes of the plate-like member.)

1. A frame body of an illumination lamp is characterized by comprising:

a first engaging portion provided at a first end portion and engaged with a plate-like member by being inserted through a first edge portion of a through hole provided in the plate-like member; and

and a second engaging portion provided at a second end portion and engaged with the plate-like member by being inserted into a second edge portion of the through hole of the plate-like member.

2. The illumination lamp frame according to claim 1, wherein the first engaging portion includes:

a first engaging portion first contact portion that protrudes from one end, i.e., a first end, of the frame body portion and contacts the first surface of the plate-like member; and

a first engaging portion and a second contact portion that protrude from the first end of the frame body portion so as to be longer than the first engaging portion and that contact a second surface of the plate-like member.

3. Lighting lamp frame according to claim 2,

a distance between the first engaging portion first contact portion and the first engaging portion second contact portion is a fixed value at a base end portion of the first engaging portion first contact portion, and

at a tip end portion of the first engaging portion first contact portion, a value of a distance between the first engaging portion first contact portion and the first engaging portion second contact portion gradually increases as the first engaging portion first contact portion is spaced apart from the frame body portion in a direction in which the first engaging portion first contact portion protrudes from the frame body portion.

4. The illumination lamp frame according to any one of claims 1 to 3, wherein the second engaging portion includes a catch.

5. Lighting lamp frame according to claim 4,

the second engaging portion includes: the buckle is arranged; and a second engaging portion first contact portion which is in contact with the first surface of the plate-like member,

the buckle is provided with: an arm portion having elasticity; and a second engaging portion second contact portion provided at a distal end portion of the arm portion and contacting the second surface of the plate-like member.

6. An illumination lamp, characterized by comprising:

a light emitting functional portion; and

an exterior part provided with the functional part and including the illumination lamp frame body according to any one of claims 1 to 5 and a lens provided in the illumination lamp frame body.

Technical Field

The present invention relates to an illumination lamp and a frame body of the illumination lamp.

Background

The illumination lamp disclosed in japanese patent application laid-open No. 2005-75219 includes a functional portion and an exterior portion, and is provided in a through hole which is an opening portion of a ceiling panel as an interior material of a vehicle.

Disclosure of Invention

However, in the illumination lamp of japanese patent application laid-open No. 2005-75219, if an unexpected force is applied to the functional portion due to, for example, a wire extending from a connector provided in the functional portion being pulled, the functional portion may be detached from the frame (bezel). If the functional portion is detached from the frame (bezel), the exterior portion and the functional portion may be detached from the ceiling panel and the exterior portion may fall.

The invention aims to provide an illuminating lamp and a frame-shaped body (embedding frame) of the illuminating lamp, wherein the state of the frame-shaped body (embedding frame) arranged on a plate-shaped component such as a ceiling panel can be maintained even if a functional part is separated from the frame-shaped body (embedding frame).

The frame body of the illuminating lamp according to the embodiment comprises: a first engaging portion provided at a first end portion and engaged with a plate-like member by being inserted through a first edge portion of a through hole provided in the plate-like member; and a second engaging portion provided at a second end portion and engaged with the plate-like member by being inserted into a second edge portion of the through hole of the plate-like member.

In addition, in the illumination lamp frame according to the embodiment, the first engagement portion includes: a first engaging portion first contact portion that protrudes from one end, i.e., a first end, of the frame body portion and contacts the first surface of the plate-like member; and a first engaging portion second contact portion that protrudes from the first end of the frame-shaped body main portion longer than the first engaging portion first contact portion and contacts a second surface of the plate-shaped member.

In the illumination lamp frame according to the embodiment, a distance between the first engagement portion first contact portion and the first engagement portion second contact portion has a constant value at a base end portion of the first engagement portion first contact portion, and the first engagement portion first contact portion gradually increases in a tip end portion thereof as the first engagement portion first contact portion moves away from the frame body portion in a direction in which the first engagement portion first contact portion protrudes from the frame body portion.

In the illumination lamp frame according to the embodiment, the second engagement portion includes a catch.

In the illumination lamp frame according to the embodiment, the second engagement portion includes: the buckle is arranged; and a second engaging portion first contact portion that contacts the first surface of the plate-like member, the clip including: an arm portion having elasticity; and a second engaging portion, a second contact portion, provided at a distal end portion of the arm portion, and contacting the second surface of the plate-like member.

In addition, the illumination lamp according to the embodiment includes: a light emitting functional portion; and a frame body of the illumination lamp and a lens provided in the frame body of the illumination lamp, the illumination lamp having an appearance portion provided with the function portion.

According to the structure, the following effects are achieved: provided are an illumination lamp and a frame-shaped body (bezel) of the illumination lamp, wherein the state of the illumination lamp can be maintained even if a functional part is separated from the frame-shaped body (bezel) in the state of being arranged in a through hole of a plate-shaped member such as a ceiling panel.

Drawings

Fig. 1 is a perspective view of an illumination lamp according to an embodiment of the present invention.

Fig. 2 is a perspective view of the illumination lamp according to the embodiment of the present invention, and is a view showing a state in which the functional unit is detached from the exterior unit.

Fig. 3 is an exploded perspective view of an exterior part of the illumination lamp according to the embodiment of the present invention.

Fig. 4 is an exploded perspective view of a functional part of the illumination lamp according to the embodiment of the present invention.

Fig. 5 is a cross-sectional view V-V in fig. 1.

Fig. 6 is a view in the direction VI in fig. 1, and is a view showing a state before the connector is set.

Fig. 7 is a view in the direction VI in fig. 1, showing a state in which the connector is completely installed.

Fig. 8A corresponds to fig. 5, and is a view showing the illumination lamp according to the embodiment of the present invention in a somewhat simplified manner.

Fig. 8B is a view in the direction VIIIB in fig. 8A, showing the contact surface between the plate-like member and the frame.

Fig. 9 is a diagram showing a state in which the illumination lamp according to the embodiment of the present invention is installed in a plate-like member.

Fig. 10 is a diagram showing an illumination lamp according to a comparative example.

Fig. 11 is a diagram showing an illumination lamp according to a comparative example.

Fig. 12A is a diagram showing an illumination lamp according to a comparative example.

Fig. 12B is a diagram showing an illumination lamp according to a comparative example.

Detailed Description

The illumination lamp 1 according to the embodiment of the present invention is used as, for example, a room lamp of a vehicle, and includes an exterior portion (exterior body) 3 and a functional portion (functional body) 5 as shown in fig. 1 to 3. The exterior portion 3 includes a frame body (bezel) 7 and a lens (lens portion) 9. The frame body 7 is integrally formed of, for example, synthetic resin. The lens 9 is also integrally molded from, for example, a synthetic resin.

For convenience of explanation, a predetermined one direction of the illumination lamp or the like is a vertical direction, a predetermined other direction orthogonal to the vertical direction is a horizontal direction, and a direction orthogonal to the vertical direction and the horizontal direction is a height direction. The height direction may be a vertical direction, but the height direction is not limited to the vertical direction.

The frame body 7 is provided with a first engaging portion (first installation portion) 11 and a second engaging portion (second installation portion) 13. The first engaging portion 11 is provided at a first end, which is one end of the frame body 7 in the longitudinal direction. The second engaging portion 13 is provided at the second end, which is the other end of the frame body 7 in the longitudinal direction.

As shown in fig. 5 and the like, the frame body 7 is provided on the plate-like member 15 by inserting the plate-like member (for example, a ceiling panel of a vehicle) 15 into the first engaging portion 11 and the second engaging portion 13.

Further, the plate-like member 15 is provided with a through hole 17 having a predetermined shape. By inserting a part of the plate-like member 15 into the first engaging portion 11, the first engaging portion 11 sandwiches the plate-like member 15 in the thickness direction thereof at a position of a first edge portion (edge portion on the first end side in the longitudinal direction) which is one edge portion in the longitudinal direction of the through hole 17. By inserting a part of the plate-like member 15 into the second engaging portion 13, the second engaging portion 13 sandwiches the plate-like member 15 in the thickness direction thereof at the position of the second edge portion (edge portion on the second end side in the longitudinal direction) which is the other edge portion in the longitudinal direction of the through hole 17.

The frame body 7 includes a frame body portion 19, and the direction in which the first engaging portion 11 sandwiches the plate-like member 15 and the direction in which the second engaging portion 13 sandwiches the plate-like member 15 are in the height direction and coincide with each other. Further, by engaging the first engaging portion 11 and the second engaging portion 13 with the plate-like member 15 at the same time, the frame-like body 7 of the illumination lamp 1 enters the through-hole 17 so as to close the through-hole 17, and is fixed to the plate-like member 15.

The second engaging portion 13 includes a catch 21 on the upper side in the height direction in order to facilitate the installation of the frame body 7 on the plate-like member 15.

When the frame body 7 is provided on the plate-like member 15, the first engaging portion 11 of the frame body 7 is engaged with the plate-like member 15, and then the second engaging portion 13 of the frame body 7 is engaged with the plate-like member 15.

In a state in which the second engaging portion 13 of the frame body 7 is disposed on the plate-like member 15, the arm portion 23 constituting the catch 21 is elastically deformed. When the frame body 7 is completely installed on the plate-like member 15, the first engaging portion 11 of the frame body 7 engages with the plate-like member 15, the arm portion 23 constituting the hook 21 is restored, and the second engaging portion 13 engages with the plate-like member 15.

The first engaging portion 11 includes a first engaging portion first contact portion 25 and a first engaging portion second contact portion 27. The first engaging portion first contact portion 25 is in contact with a first surface (for example, a lower surface in the height direction) that is one surface in the thickness direction (height direction) of the plate-like member 15. The first engaging portion and the second contact portion 27 contact a second surface (for example, an upper surface in the height direction) which is the other surface in the thickness direction of the plate-like member 15.

The first engaging portion and the second contacting portion 27 may face the upper surface of the plate-like member 15 with a slight gap therebetween.

The second engaging portion 13 includes the catch 21 and a second engaging portion first contact portion 29. The second engaging portion first contact portion 29 is in contact with a first surface (for example, a lower surface in the height direction) that is one surface in the thickness direction (height direction) of the plate-like member 15.

The clip 21 includes: the arm portion 23 and the second engaging portion second contact portion 31 are provided with elasticity. The arm portion 23 is formed in a cantilever shape having elasticity and bending. The second engaging portion second contact portion 31 is provided at the distal end portion of the arm portion 23 and contacts a second surface (for example, an upper surface) that is the other surface in the thickness direction of the plate-like member 15.

The second engaging portion, the second contact portion 31, and the upper surface of the plate-like member 15 may be opposed to each other with a slight gap therebetween.

As shown in fig. 8A and the like, the first engaging portion first contact portion 25 protrudes from the first end of the frame body portion 19 by a predetermined length in the longitudinal direction. The planar upper surface of the first engaging portion first contact portion 25 is a first engaging portion first contact surface 33 that contacts the lower surface of the plate-like member 15. The first engaging portion and the second contacting portion 27 also protrude from the first end of the frame body portion 19 by a predetermined length in the longitudinal direction. The planar lower surface of the first engaging portion second contact portion 27 serves as a first engaging portion second contact surface 35 that contacts the upper surface of the plate-like member 15.

The second engaging portion first contact portion 29 protrudes from the second end of the frame body portion 19 by a predetermined length in the longitudinal direction. The upper surface of the second engaging portion first contact portion 29 is a second engaging portion first contact surface 37 that contacts the lower surface of the plate-like member 15. The lower surface of the second engaging portion second contact portion 31 of the clip 21 serves as a second engaging portion second contact surface 39 that is in surface contact with the upper surface of the plate-like member 15.

The first engaging portion second contact portion 27 has a projection length from the frame body portion 19 larger than a projection length of the first engaging portion first contact portion 25 from the frame body portion 19.

Further, the first engaging portion 11 protrudes from a first end, which is one end in the longitudinal direction of the frame body portion 19, and includes a first engaging portion first contact portion 25 and a first engaging portion second contact portion 27. The first engaging portion first contact portion 25 is in contact with a first surface (lower surface) of the plate-like member 15. The first engaging portion second contact portion 27 protrudes from the first end of the frame body portion 19 in the longitudinal direction longer than the first engaging portion first contact portion 25, and contacts the second surface (upper surface) of the plate-like member 15.

The first engaging portion the first contact portion 25 is a flat surface orthogonal to the height direction at a portion contacting the first surface (lower surface) of the plate-like member 15. The first engaging portion and the second contact portion 27 are also flat surfaces orthogonal to the height direction, at a portion contacting the second surface (upper surface) of the plate-like member. The plane of the first engaging portion first contact portion 25 and the plane of the first engaging portion second contact portion 27 are separated by a predetermined distance in the height direction.

The value of the distance between the plane of the first engaging portion first contact portion 25 and the plane of the first engaging portion second contact portion 27 is substantially equal to the value of the thickness dimension at the position of the first edge portion of the through hole 17 of the plate-like member 15. That is, the distance between the flat surface of the first engaging portion first contact portion 25 and the flat surface of the first engaging portion second contact portion 27 is slightly larger than, equal to, or slightly smaller than the thickness dimension of the plate-like member 15.

The first engaging portion first contact portion 25 is composed of a proximal end portion and a distal end portion. At the base end portion of the first engaging portion first contact portion 25, the value of the distance in the height direction between the first engaging portion first contact portion 25 and the first engaging portion second contact portion 27 is a fixed value and is substantially equal to the value of the thickness dimension of the plate-like member 15. At the tip end portion of the first engaging portion first contact portion 25, the value of the distance in the height direction between the first engaging portion first contact portion 25 and the first engaging portion second contact portion 27 gradually increases as it moves in the direction toward the first end side in the longitudinal direction of the frame body portion 19 and separates in the direction of protrusion of the first engaging portion first contact portion 25.

The proximal end portion of the first engaging portion first contact portion 25 is a portion on the side of the frame body 19, and the distal end portion of the first engaging portion first contact portion 25 is a portion on the opposite side of the frame body 19. The proximal end of the first engaging portion first contact portion 25 protrudes from the first end of the frame body 19 in the longitudinal direction by a predetermined length, and the distal end of the first engaging portion first contact portion 25 protrudes from the proximal end of the first engaging portion first contact portion 25 by a predetermined length. A plane of the first engaging portion first contact portion 25 that contacts the first surface (lower surface) of the plate-like member 15 is formed at a base end portion of the first engaging portion first contact portion 25.

As shown in fig. 4 and the like, a light emitting unit 40 that emits light is provided in the functional unit 5 of the illumination lamp 1. The light emitting unit 40 uses, for example, an LED as a light source. As shown in fig. 1 and the like, the lens 9 of the illumination lamp 1 is integrally provided on the frame body 7 below the frame body 7. The functional section 5 of the illumination lamp 1 is integrally provided on the frame body 7 above the frame body 7.

As shown in fig. 2 and the like, the illumination lamp 1 has a functional unit 5 formed separately from the exterior unit 3. The functional portion 5 can be easily provided to the exterior portion 3. The frame-shaped body 7 of the illumination lamp 1 is provided in the through hole 17 of a predetermined shape formed in the plate-shaped member 15, whereby the illumination lamp 1 formed by integrating the functional portion 5 and the exterior portion 3 is integrally provided in the plate-shaped member 15. In this case, the functional unit 5 is located above the plate-like member 15, the lens 9 is located below the plate-like member 15, and the light emitted from the functional unit 5 is emitted into the space below the plate-like member 15, i.e., the vehicle interior, through the lens 9.

The illumination lamp 1 is explained in further detail.

As shown in fig. 4, the functional unit 5 includes a case 41, a cover 43, a bus bar 45, and a circuit board 47. The cover 43, the bus bar 45, and the circuit board 47 are integrally provided to the case 41, thereby forming the functional portion 5. The functional portion 5 is formed in a substantially rectangular parallelepiped shape.

The housing 41 is integrally molded from, for example, synthetic resin. The cover 43 is also integrally molded from, for example, a synthetic resin. The cover 43 is made of a transparent or translucent material that transmits the light emitted from the light emitting section 40. As shown in fig. 6 and the like, the connector main body 51 of the connector 49 is provided at one end, i.e., a first end, in the longitudinal direction of the housing 41. The wiring 53 extends from the connector main body 51. As shown in fig. 4 and the like, the light emitting section 40 is provided on the circuit board 47.

As shown in fig. 3, 5, and the like, the frame body 7 includes a rectangular ring-shaped frame body portion 19 having a small height, a rectangular ring-shaped lower end portion 55 having a small height, a functional portion installation portion 57, and a catch 21. The vertical and horizontal dimensions of the frame body 19 are smaller than those of the lower end 55. The frame body 19 is disposed above the lower end 55 in the height direction. The frame body 19 is located inside the lower end 55 when viewed in the height direction. As shown in fig. 5 and the like, the functional unit installation unit 57 is disposed above the frame body 19.

The first engaging portion and the second contacting portion 27 are formed in a rectangular flat plate shape, for example, and protrude from a first end of the frame body 19 in the longitudinal direction on the upper side of the frame body 19 so that the thickness direction is the height direction. The rectangular plane (lower surface) of the first engaging portion second contact portion 27 serves as a first engaging portion second contact surface 35.

As shown in fig. 8B, the first engaging portion and the first contact portion 25 are provided in a pair, for example. The pair of first engaging portion first contact portions 25 are arranged at a predetermined interval in the lateral direction when viewed in the height direction. Further, the pair of first engaging portion first contact portions 25 (first engaging portion first contact surfaces 33) is disposed inside the first engaging portion second contact portion 27 (first engaging portion second contact surface 35) as viewed in the height direction. Next, the first engaging portion first contact surface 33 will be described in detail.

The first engaging portion first contact portion 25 includes a first engaging portion first contact surface 33 formed of a small rectangular flat surface and an arc-shaped guide surface 59. The first engaging portion first contact surface 33 protrudes from a first end of the frame body portion 19 in the longitudinal direction below the frame body portion 19. The arcuate guide surface 59 protrudes from the first engaging portion first contact surface 33 in the longitudinal direction.

The lateral dimension (width dimension) of the first engaging portion first contact surface 33 and the lateral dimension (width dimension) of the arcuate guide surface 59 match each other. In addition, the position of the first engaging portion first contact surface 33 and the position of the arcuate guide surface 59 coincide with each other in the lateral direction.

When viewed in the lateral direction, as shown in fig. 8A, the first engaging portion first contact surface 33 is parallel to the first engaging portion second contact surface 35. The arc-shaped guide surface 59 is formed in an arc shape of about 1/4. The arc-shaped guide surface 59 is not sharply curved with respect to the first engaging portion first contact surface 33, but is smoothly connected to the first engaging portion first contact surface 33 so as to be continuous therewith. Thus, the first engaging portion first contact portion 25 is constituted by the base end portion and the tip end portion as described above. Further, the arc-shaped guide surface 59 formed toward the lower side in the height direction gradually increases the distance in the height direction between the first engaging portion first contact portion 25 and the first engaging portion second contact portion 27 at the tip end portion of the first engaging portion first contact portion 25, as the distance increases in the direction moving toward the first end side in the longitudinal direction of the frame body portion 19 and in the direction in which the first engaging portion first contact portion 25 protrudes.

Further, the distance between the first engaging portion second contact surface 35 and the arcuate guide surface 59 in the height direction gradually increases as the distance increases in the protruding direction of the first engaging portion first contact portion 25. Further, since the guide surface 59 has an arc shape, the ratio of the arc-shaped guide surface 59 to be separated from the first engagement portion second contact surface 35 in the height direction is naturally increased.

Further, when viewed in the height direction, the frame body 7 has a symmetrical shape with respect to a center line C1 (see fig. 8B) of the frame body 7, and the first engaging portion first contact portion 25 and the first engaging portion second contact portion 27 are arranged symmetrically with respect to the center line C1.

The second engaging portion first contact portion 29 includes a second engaging portion first contact surface 37 formed of a small rectangular flat surface. The second engaging portion first contact surface 37 protrudes from the second end of the frame body portion 19 below the frame body portion 19. When viewed in the lateral direction, as shown in fig. 8A, the second engaging portion first contact surface 37 is located on the same plane as the first engaging portion first contact surface 33 of the first engaging portion first contact portion 25. The second engagement portion first contact portion 29 is also provided with an arc-shaped guide surface 59, similarly to the first engagement portion first contact portion 25.

As shown in fig. 8B, the second engaging portion first contact portions 29 are provided in a pair, for example. The pair of second engaging portion first contact portions 29 are arranged at a predetermined interval in the lateral direction when viewed in the height direction. Further, the second engaging portion first contact portion 29 is disposed symmetrically with respect to the center line C1 of the frame body 7 when viewed in the height direction.

As shown in fig. 5, the catch 21 is disposed at the second end of the frame 7 in the longitudinal direction and at the center of the frame 7 in the transverse direction. The arm portion 23 of the clip 21 includes a first extension portion 61, a second extension portion 63, and a third extension portion 65.

The first extending portion 61 extends upward in the height direction from the housing main body portion 19 at a position on the second end side in the longitudinal direction of the housing main body portion 19. The second extension 63 extends from the tip (upper end) of the first extension 61 toward the longitudinal second end side. The third extension 65 extends downward from the top end of the second extension 63.

In addition, the third extending portion 65 is formed in a triangular shape when viewed from the lateral direction. Thereby, the third extending portion 65 gradually becomes larger in size in the longitudinal direction from the top to the bottom, and the inclined surface 67 is formed at the third extending portion 65. The inclined surface 67 faces the longitudinal second end side of the third extension 65. The upper end of the inclined surface 67 is located on the longitudinal first end side, and the lower end of the inclined surface 67 is located on the longitudinal second end side.

When the frame body 7 (illumination lamp 1) is installed on the plate-like member 15, the inclined surface 67 abuts against the plate-like member 15 by forming a sliding pair with the plate-like member 15 at the edge of the through hole 17, and thereby the arm portion 23 is elastically deformed.

As shown in fig. 8A and the like, the second engaging portion and the second contact portion 31 are formed in a small rectangular parallelepiped shape and slightly protrude downward from the lower end in the height direction of the third extending portion 65. The second engaging portion second contact surface 39 is formed by the lower surface of the second engaging portion second contact portion 31. The arm portion 23 is elastically deformed, whereby the position of the second engaging portion second contact portion 31 (second engaging portion second contact surface 39) relative to the frame body portion 19 at least in the height direction is slightly changed.

The second engaging portion second contact portion 31 (second engaging portion second contact surface 39) is disposed at the lateral center as shown in fig. 8B when viewed in the height direction. Further, when viewed in the height direction, the position of the second engaging portion second contact portion 31 (second engaging portion second contact surface 39) in the longitudinal direction and the position of the second engaging portion first contact portion 29 (second engaging portion first contact surface 37) in the longitudinal direction coincide with each other.

Next, the assembly procedure of the illumination lamp 1 is exemplified.

From the state shown in fig. 4, the circuit board 47, the bus bar 45, and the cover 43 are appropriately provided in the case 41, whereby the functional unit 5 is assembled. Next, the functional section 5 and the lens 9 are provided in the frame body 7.

Next, the installation of the illumination lamp 1 in the through hole 17 formed in the panel (e.g., ceiling panel) 15 of the vehicle will be described.

In the initial state, the illumination lamp 1 is disposed below the ceiling panel 15 such that the functional section 5 is located above and the lens 9 is located below. In the initial state, the first end of the illumination lamp 1 in the longitudinal direction is located slightly above the second end. In the initial state, the wiring 53 of the connector 49 extends above the ceiling panel 15, and passes through the through hole 17 to extend a little by a length below the ceiling panel 15. In the initial state, the connector main body 51 is provided at an end of the wire 53 extending below the ceiling panel 15.

In the initial state described above, the connector main body portion 51 is set to the function portion 5. Next, the first end portion in the longitudinal direction of the illumination lamp 1 (the frame body 7) is half-engaged (temporarily engaged) with the ceiling panel 15 at the edge of the first end side in the longitudinal direction of the through hole 17 of the ceiling panel 15 (see fig. 9).

Next, the illumination lamp 1 is slightly moved in the direction indicated by the arrow a91 in fig. 9, and the illumination lamp 1 is rotated around the half-engaged portion of the illumination lamp 1 as the center of rotation, so that the second end side in the longitudinal direction of the illumination lamp 1 is moved upward (see the arrow a92 in fig. 9). By this rotation or the like, the hook 21 (inclined surface 67) is brought into contact with the edge of the second end side in the longitudinal direction of the through hole 17 of the ceiling panel 15 and elastically deformed.

When the cargo lamp 1 is further rotated, the catch 21 is disengaged from the edge of the through hole 17 of the ceiling panel 15, and as shown in fig. 5, 8A, and the like, the catch 21 is restored, and the installation of the cargo lamp 1 to the ceiling panel 15 of the vehicle is completed.

In the state where the installation is completed, the light emitting unit 40 emits light by supplying power or the like through the wiring 53. Then, the light emitted from the light emitting unit 40 passes through the lens 9 and reaches the interior of the vehicle, thereby illuminating the interior.

In the illumination lamp 1, the frame body 7 includes a first engaging portion 11 and a second engaging portion 13. The first engaging portion 11 is configured to engage the plate-like member 15 by sandwiching the plate-like member 15 at a position of a first edge of a through hole 17 of a predetermined shape formed in the plate-like member 15. The second engaging portion 13 engages with the plate-like member 15 by sandwiching the plate-like member 15 at the second edge portion of the through hole 17.

With this configuration, as shown in fig. 7, even when a force (see an arrow in fig. 7) is applied to pull the wires 53 upward in a state where the illumination lamp 1 is installed on the plate-like member 15, the state where the frame-like body 7 is installed on the plate-like member 15 can be maintained. That is, even if the wiring 53 is pulled upward, the frame body 7 can be maintained in the state of being provided to the plate-like member 15 even if the functional unit 5 should be detached from the frame body 7. Further, the exterior portion 3 and the like are prevented from falling from the plate-like member 15.

In contrast, in the illumination lamp 301 according to the comparative example shown in fig. 10, the edge portion near the through hole 309 of the ceiling panel 307 is sandwiched by the clip 305 provided at the end portion of the bezel 303. In the illumination lamp 301 according to the comparative example, the functional portion 311 is provided in the bezel 303, and the edge portion near the through-hole 309 of the ceiling panel 307 is sandwiched by the end portion of the bezel 303 and the functional portion 311. The conventional illumination lamp 301 is provided to the ceiling panel 307 in this manner.

Therefore, in the illumination lamp 301 according to the comparative example, if an unexpected force is applied to the function portion 311, the function portion 311 may be detached from the bezel 303. When the functional unit 311 is detached from the bezel 303, as shown in fig. 11, the functional unit 311 and the exterior unit 313 including the bezel 303 and the lens 315 are detached from the ceiling panel 307, and the exterior unit 313 may fall.

In contrast, as described above, since the illumination lamp 1 is provided on the ceiling panel 15 only by the bezel 7 without using the functional unit 5, even if the functional unit 5 is detached from the bezel 7, the exterior unit 3 is not detached from the ceiling panel 15 and falls down.

According to the illumination lamp 1, since the second engaging portion 13 includes the catch 21, the catch 21 is elastically deformed when the illumination lamp 1 is installed on the ceiling panel 15, and installation of the illumination lamp 1 on the ceiling panel 15 is facilitated.

In addition, according to the illumination lamp 1, the first engaging portion 11 includes the first engaging portion first contact portion 25 and the first engaging portion second contact portion 27, and the second engaging portion 13 includes the catch 21 and the second engaging portion first contact portion 29, so that the illumination lamp 1 can be easily installed.

That is, when the illumination lamp 1 is installed on the plate-like member 15, the illumination lamp 1 is rotated around the first end portion in the longitudinal direction of the plate-like member 15 as a rotation center in a state where the first end portion of the plate-like member 15 is inserted between the first engaging portion first contact portion 25 and the first engaging portion second contact portion 27.

By the rotation, the catch 21 comes into contact with the end of the plate-like member 15 and is elastically deformed. Further, when the illumination lamp 1 is rotated, the catch 21 is restored beyond the plate-like member 15, and the second end of the plate-like member 15 is held by the second engaging portion 13. The illumination lamp 1 is provided on the plate-like member 15.

Therefore, by mainly rotating the illumination lamp 1, the illumination lamp 1 can be easily installed on the plate-like member 15. As described above, in a state where the illumination lamp 1 is disposed on the plate-like member 15, the plate-like member 15 is sandwiched by the first engaging portion first contact portion 25 and the first engaging portion second contact portion 27. In addition, in a state where the illumination lamp 1 is installed on the plate-like member 15, the plate-like member 15 is sandwiched by the second engaging portion first contact portion 29 and the second engaging portion second contact portion 31 (the clip 21).

In the illumination lamp 1, the first engaging portion second contact portion 27 protrudes longer than the first engaging portion first contact portion 25. This also facilitates installation of the illumination lamp 1 on the plate-like member 15. That is, when the illumination lamp 1 is installed on the plate-like member 15, the first engaging portion and the second contact portion 27 are put into the through hole 17 of the plate-like member 15, and the illumination lamp 1 is rotated, but the illumination lamp 1 is not easily detached from the plate-like member 15 (the through hole 17) because the first engaging portion and the second contact portion 27 are long at the time of the rotation.

In the illumination lamp 1, at the tip end portion of the first engaging portion first contact portion 25, the value of the distance between the first engaging portion first contact portion 25 and the first engaging portion second contact portion 27 gradually increases as it becomes farther in the direction moving toward the longitudinal first end side of the frame body portion 19 and in the direction of protrusion of the first engaging portion first contact portion 25. This also facilitates installation of the illumination lamp 1 on the plate-like member 15. That is, when the illumination lamp 1 is installed on the plate-like member 15, the first engaging portion and the second contact portion 27 are inserted into the through hole 17 of the plate-like member 15, and the illumination lamp 1 is rotated. During this rotation, the arc-shaped guide surface 59 at the distal end of the first engaging portion second contact portion 27 comes into contact with the plate-like member 15, and the rotation is facilitated.

According to the illumination lamp 1, the functional portion 5 is separated from the exterior portion 3, so that maintenance is easy and a change in specification is easily coped with. That is, when a problem occurs in the functional unit 5 or the external appearance unit 3, only the defective component needs to be replaced, and maintenance is facilitated. Further, when the specification is changed, for example, when the shape of the exterior portion 3 is changed, only the exterior portion 3 may be replaced by continuing to use the functional portion 5, and thus the specification change can be easily handled.

In contrast, as shown in fig. 12A and 12B, since the functional portion 353 and the external appearance portion 355 of the illumination lamp 351 according to the comparative example are formed so as to be extremely difficult to separate, it is difficult to perform maintenance and to cope with a change in specification.

The above-described structure of installing the illumination lamp 1 on the plate-like member 15 may be grasped as a structure for preventing the illumination lamp from falling off.

The present embodiment has been described above, but the present embodiment is not limited to this, and various modifications can be made within the scope of the present embodiment.