JP5948692B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture applied to a base light or the like attached to a ceiling surface.

2. Description of the Related Art Conventionally, there is known a lighting fixture in which a socket cover that covers a socket that is mechanically and electrically connected to a base of a straight tube lamp is detachably attached to a fixture body (see, for example, Patent Document 1).
In Patent Document 1, after inserting a socket into the hole of the reflecting plate, the socket cover is attached to the reflecting plate by inserting an end cover portion of the socket cover into the step portion of the reflecting plate.
In Patent Document 1, since the end cover of the reflection plate is integrally formed with the socket cover, the number of assembling steps can be reduced.
Further, conventionally, there has been known a lighting fixture including a socket cover that covers an end portion of a straight tube lamp and a socket provided in a fixture main body of the lighting fixture (for example, see Patent Document 2).
Patent Document 2 can prevent the temperature drop of the straight tube lamp and can prevent the light output of the straight tube lamp from decreasing at a low temperature.

Japanese Utility Model Publication No. 60-4335 (FIG. 2, claim 1) JP 2007-265941 A (FIG. 2, claim 1)

However, in Patent Document 1 and Patent Document 2, the entire length dimension of the socket cover in the lamp axis direction becomes longer in order to cover the cap portions at both ends of the lamp.
Therefore, in Patent Document 1 and Patent Document 2, the slide width for attaching and detaching the lamp must be increased.
Therefore, in Patent Document 1 and Patent Document 2, the allowance from the end portion of the instrument is increased, and the installation condition of the instrument is restricted.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lighting apparatus that can cover both ends of a lamp while allowing the lamp to be attached and detached with a minimum slide amount, and can reduce restrictions on installation. It is to provide.

A lighting fixture according to the present invention is a lighting fixture in which a straight tube lamp having a base is used as a light source, the fixture main body, a socket to which the straight tube lamp is attached, and the fixture main body, In the state where the straight tube lamp is provided at both ends in the longitudinal direction of the straight tube lamp, and is attached to the socket table, the socket tube is mounted on the socket table, and the straight tube lamp is mounted on the socket. Cover the end including the base of the mold lamp and the socket so that it cannot be seen directly from below, and when replacing the straight tube lamp, slide along the longitudinal direction of the straight tube lamp and A socket cover capable of rotating to expose the base, and the socket base is in a state where the socket cover is not slid. A pair of side plates provided so as to sandwich the socket at both left and right end portions in a cross-sectional view when the light fixture is cut at a plane perpendicular to the longitudinal direction of the straight tube lamp, and the pair of side plates An engaging protrusion having a protrusion protruding from each side plate toward the socket; and a guide slit formed in each side plate, wherein the guide slit is the straight tube lamp. A first slit portion extending along the longitudinal direction of the first slit portion, and a second slit portion coupled to the first slit portion and extending obliquely downwardly away from the center of the instrument body as it goes downward. The socket cover cuts the lighting fixture in a state where the socket cover is not slid at a surface perpendicular to the longitudinal direction of the straight tube lamp. In both end portions of the left and right in a cross-sectional view of the case, it is provided so as to sandwich the socket, and a pair of edge plates located inside the side plates of the socket base, the provided on the respective edge plates, the socket base Engaging with the projections of the engaging projections provided on each side plate of the socket and being detached from the projections when the socket cover is slid along the longitudinal direction of the straight tube lamp. And fixed to each edge plate , and inserted into each guide slit formed on each side plate of the socket base, supporting the socket cover so that it does not fall off the socket base, And a pair of pivots serving as pivots when the socket cover detached from the protrusions pivots downward.

The lighting fixture according to the present invention is a side view of the lighting fixture in a state in which the socket cover is not slid, and the straight tube type lamp of the end portion in the longitudinal direction of the straight tube type lamp of the socket cover. A contour line that determines the outer shape of the end portion far from the center is inclined obliquely downward from the upper end of the socket cover so as to approach the center of the straight tube lamp, and each pivot is connected to the socket cover. Is not slid, it is located at the end of the first slit portion closer to the center of the straight tube lamp, and the socket cover is slid so that the pivots are located in the first slit portion. When the socket cover is detached from the protrusion, the pivot is moved along the second slit, and the socket cover is rotated. The distance from the end in the longitudinal direction of the straight-tube lamp to a lower end of the contour of the instrument body, rotation of the socket cover is restricted so as not to exceed a predetermined length.

A lighting fixture according to the present invention is a lighting fixture in which a straight tube lamp having a base is used as a light source, the fixture main body, a socket to which the straight tube lamp is attached, and the fixture main body, In the state where the straight tube lamp is provided at both ends in the longitudinal direction of the straight tube lamp, and is attached to the socket table, the socket tube is mounted on the socket table, and the straight tube lamp is mounted on the socket. Cover the end including the base of the mold lamp and the socket so that it cannot be seen directly from below, and when replacing the straight tube lamp, slide along the longitudinal direction of the straight tube lamp and A socket cover capable of rotating to expose the base, and the socket base is in a state where the socket cover is not slid. A pair of side plates provided so as to sandwich the socket at both left and right end portions in a cross-sectional view when the light fixture is cut along a plane perpendicular to the longitudinal direction of the straight tube lamp, and the pair of side plates An engaging projection having a protrusion projecting from each side plate toward the socket, and a pair of pivots fixed to each side plate, wherein the socket cover is slid by the socket cover. The lighting fixture in a state where it is not cut is provided so as to sandwich the socket at both left and right end portions in a cross-sectional view when cut in a plane perpendicular to the longitudinal direction of the straight tube lamp, and the socket base A pair of edge plates located on the inner side of each of the side plates, and the engagement protrusions provided on the side plates of the socket base and provided on each of the edge plates. Engaging recesses that are engaged with the protrusions and are detached from the protrusions by sliding the socket cover, and guide slits that are formed in the respective edge plates and into which the pivots are inserted. The guide slit is connected to the first slit portion extending along the longitudinal direction of the straight tube lamp and the first slit portion in a state where the socket cover is not slid, and upward. A second slit portion extending obliquely upward so as to be closer to the center of the straight tube lamp, and each pivot provided on each side plate of the socket base includes the socket cover. The socket cover is supported by the pivots so as not to drop off from the socket base by being inserted into the respective guide slits formed on the respective edge plates , and The socket cover in a state of being detached from the protrusion can be rotated downward with the pivots as pivot axes.

The luminaire according to the present invention is, in the side view of the luminaire in a state where the socket cover is not slid, of the end portions of the socket cover in the longitudinal direction of the straight tube lamp. The contour line that determines the outer shape of the end portion far from the center of the socket is inclined obliquely downward from the upper end of the socket cover so as to approach the center of the straight tube lamp, and each pivot is connected to the socket. When the cover is not slid, the first slit portion is located at the end of the straight tube lamp far from the center, and the socket cover is slid so that the pivots are the first slits. The socket cover is detached from the projection by moving in the portion, and the socket cover is moved when the pivots move obliquely upward in the second slit portion. With over rotates, the distance from the end in the longitudinal direction of the straight-tube lamp to the upper end of the contour of the instrument body, rotation of the socket cover is restricted so as not to exceed a predetermined length .

  According to the lighting apparatus of the present invention, it is possible to cover both ends of the lamp while allowing the lamp to be attached and detached with a minimum amount of slide, and it is possible to reduce the restrictions on installation.

The external appearance perspective view seen from diagonally downward of the lighting fixture of 1st Embodiment which concerns on this invention The side view of the lighting fixture of 1st Embodiment which concerns on this invention The bottom view of the lighting fixture of 1st Embodiment which concerns on this invention The vertical sectional view seen from the front of the lighting fixture of a 1st embodiment concerning the present invention. Single-piece | unit external appearance perspective view seen from diagonally downward of the closed state of the socket cover of the lighting fixture of 1st Embodiment which concerns on this invention The side view of the 1st position of the socket cover of the lighting fixture of 1st Embodiment which concerns on this invention. The side view around the socket cover of the 1st position of the socket cover of the lighting fixture of 1st Embodiment which concerns on this invention. The side view of the 2nd position of the socket cover of the lighting fixture of 1st Embodiment which concerns on this invention. The side view around the socket cover of the 2nd position of the socket cover of the lighting fixture of 1st Embodiment which concerns on this invention. The side view at the time of opening of the socket cover of the lighting fixture of 1st Embodiment which concerns on this invention The side view around the socket cover at the time of opening of the socket cover of the lighting fixture of 1st Embodiment which concerns on this invention Single-piece | unit external appearance perspective view seen from diagonally downward at the time of opening of the socket cover of the lighting fixture of 1st Embodiment which concerns on this invention The external appearance perspective view seen from diagonally downward at the time of opening of the socket cover of the lighting fixture of 2nd Embodiment which concerns on this invention The vertical sectional view seen from the front of the lighting fixture of a 2nd embodiment concerning the present invention. Single-piece | unit external appearance perspective view seen from diagonally downward of the closed state of the socket cover of the lighting fixture of 2nd Embodiment which concerns on this invention The side view of the 1st position of the socket cover of the lighting fixture of 2nd Embodiment which concerns on this invention. The side view around the socket cover of the 1st position of the socket cover of the lighting fixture of 2nd Embodiment which concerns on this invention. The side view of the 2nd position of the socket cover of the lighting fixture of 2nd Embodiment which concerns on this invention. The side view around the socket cover of the 2nd position of the socket cover of the lighting fixture of 2nd Embodiment which concerns on this invention. The side view at the time of opening of the socket cover of the lighting fixture of 2nd Embodiment which concerns on this invention The side view around the socket cover at the time of opening of the socket cover of the lighting fixture of 2nd Embodiment which concerns on this invention Single-piece | unit external appearance perspective view seen from diagonally downward at the time of opening of the socket cover of the lighting fixture of 2nd Embodiment which concerns on this invention

Hereinafter, the lighting fixture of several embodiment which concerns on this invention is demonstrated with reference to drawings.
(First embodiment)
As shown in FIG. 1, the lighting fixture 10 according to the first embodiment of the present invention includes a reflector-integrated fixture body 11 and a pair of sockets 12 and 13 attached to both ends of the fixture body 11. .
In addition, the lighting fixture 10 includes a lamp 14 that is mechanically and electrically connected to the sockets 12 and 13 by being attached to the sockets 12 and 13.
And the lighting fixture 10 is equipped with the socket covers 15 and 16 which cover the sockets 12 and 13, and is applied to a base light.

As shown in FIG. 2, the instrument main body 11 has a power supply box 17 attached to the upper surface of the central portion, and a power supply unit 18 is accommodated in the power supply box 17. The power supply unit 18 supplies power to the sockets 12 and 13 through appliance wiring (not shown).
As shown in FIG. 3, the instrument body 11 has a reflecting surface 19 above the lamp 14 on the lower surface thereof.

The lamp 14 is a straight tube type LED lamp or a straight tube type fluorescent lamp. In the case of a straight tube type LED lamp, one base 20 has a plurality of power supply side pins (not shown), and the other base 21 has the same non-load. It has a single ground pin as shown.
Therefore, when the lamp 14 is a straight tube type LED lamp, one socket 12 becomes a power supply side socket and the other socket 13 becomes a ground side socket.

Next, the socket covers 15 and 16 will be described in detail. Since the socket covers 15 and 16 have the same structure, only one socket cover 15 will be described here, and description of the other socket cover 16 will be omitted.
As shown in FIG. 4, the instrument body 11 has a socket base 22 that holds one socket 12 attached to the end.

The socket cover 15 is made of a resin dyed milky white or the like of the same color as the lamp 14, and has a lower cover portion 23 having an inner diameter dimension larger than the outer diameter dimension of the lamp 14 and formed in a semi-cylindrical shape, And an end cover portion 24 disposed at an end portion of the lamp 14 in the axial direction.
Further, the socket cover 15 has an opening 25 at the end of the lower cover 23 facing the end cover 24 on the lamp 14 side.

As shown in FIG. 5, the socket cover 15 accommodates the socket 12 inside.
The socket base 22 has a pair of engaging projections 27 and a pair of guide slits 28 on a pair of side plates 26 arranged in the short direction of the instrument body 11 outside the socket 12.
The engagement convex portion 27 is a metal plate member fitted to the side plate 26 and protrudes toward the inside of the side plate 26.
The guide slit 28 has a length along the axis of the lamp 14 and is cut away.
The socket cover 15 includes a pair of upper end portions of the lower cover portion 23, an edge plate 29, an engagement concave portion 30 engaged with the engagement convex portion 27, and a pivot 31 inserted into the guide slit 28. Have.

The engaging recess 30 is detached from the engaging protrusion 27 when the socket cover 15 is slid from the first position (see FIG. 7) A1 to the second position (see FIG. 9) A2.
Further, the engagement recess 30 is engaged with the engagement protrusion 27 when the socket cover 15 is slid from the second position A2 to the first position A1.
The pivot 31 supports the socket cover 15 on the socket base 22 by being inserted into the guide slit 28.
At this time, the socket cover 15 is held without dropping from the socket base 22 because the pair of pivots 31 are inserted into the pair of guide slits 28 inside the side plate 26 of the socket base 22.

When the socket cover 15 is slid from the first position A1 to the second position A2, the guide slit 28 is moved in parallel along the socket base 22 toward the end of the instrument body 11. The slit 32 for translation is held in
Further, the guide slit 28 moves the socket cover 15 from the socket 12 when the opening is performed so as to approach the direction orthogonal to the axis of the lamp 14 after the socket cover 15 has moved to the second position A2. It has a slit 33 for rotational movement that is held while being separated.
The socket cover 15 (16) may be attached to the instrument body 11 instead of the socket base 22.

Next, the operation of the socket cover 15 will be described in detail.
As shown in FIG. 6, the socket cover 15 is formed so that the end cover portion 24 is inclined from the end portion of the instrument main body 11 toward the diagonally inward direction below.
At this time, since the socket cover 15 is in the first position A1, the base cover 20 and the socket 12 of the lamp 14 are concealed by the lower cover portion 23 so that they cannot be viewed directly from below.
That is, the socket cover 15 covers the cylindrical body portion including the base 20 that is an end member of at least one end of the lamp 14.

As shown in FIG. 7, since the socket cover 15 is in the first position A <b> 1, the engagement recess 30 is engaged with the engagement protrusion 27 of the socket base 22, and the pivot 31 is parallel to the guide slit 28. It is located at the inner end of the moving slit 32.
At this time, since the engagement recess 30 is engaged with the engagement protrusion 27 of the socket base 22, the socket cover 15 is not subject to stress such as pulling the socket cover 15 downward. Never leave.

As shown in FIG. 8, next, the socket cover 15 is pushed and slid by the operator or user from the first position A1 to the second position A2.
As shown in FIG. 9, when the socket cover 15 is pressed and slid from the first position A <b> 1 to the second position A <b> 2, the engagement recess 30 is detached from the engagement protrusion 27 of the socket base 22. .
At the same time, in the socket cover 15, the pivot 31 is moved from the parallel movement slit portion 32 of the guide slit 28 toward the rotational movement slit portion 33.

As shown in FIG. 10, after the socket cover 15 is slid to the second position A <b> 2, an operator or user hooks a finger or the like on the opening 25 of the socket cover 15 and opens the socket 25 on the opening 25 side. Pull downwards.
As shown in FIG. 11, in the socket cover 15, the engagement recess 30 is detached from the engagement projection 27 of the socket base 22, and the pivot 31 is the outer end of the rotation movement slit portion 33 of the guide slit 28. At the position in the part, the opening 25 side is pulled downward.

Therefore, the pivot 31 positioned at the outer end portion of the rotational movement slit portion 33 is moved toward the lower end portion while being supported by the rotational movement slit portion 33, and the socket cover 15 is opened.
At this time, when the socket cover 15 is fully opened at the mounting position of the lamp 14, the rotation range Z is restricted so as not to exceed the line Y drawn in the direction orthogonal to the axis X of the lamp 14. .
That is, the socket cover 15 is formed so that the end cover portion 24 is inclined from the end portion of the instrument main body 11 toward the diagonally inward direction. It becomes small business trip length L1 toward the outside.

As shown in FIG. 12, when the socket cover 15 is opened, the base 20 and the socket 12 of the lamp 14 are exposed, and the lamp 14 is exchanged.
As shown in FIG. 13, at this time, by opening the socket covers 15 and 16, the length dimension between the socket covers 15 and 16 opened at the second position A <b> 2 is larger than the total length of the lamp 14. Since it is large, the lamp 14 can be replaced without any problem.

As described above, according to the lighting apparatus 10 of the first embodiment according to the present invention described above, the socket covers 15 and 16 can slide to the first position A1 and the second position A2 in the longitudinal axis direction of the lamp 14.
Moreover, according to the lighting fixture 10, the socket covers 15 and 16 can rotate in the direction away from the lamp | ramp 14 centering | focusing on the line orthogonal to the axis line of the lamp | ramp 14 in 2nd position A2.
Therefore, the socket covers 15 and 16 can cover both ends of the lamp 14 while allowing the lamp 14 to be attached and detached with a minimum amount of sliding, thereby reducing restrictions on installation.

  Moreover, according to the lighting fixture 10, since the socket covers 15 and 16 cover the cylindrical trunk | drum part containing the nozzle | cap | die 20 of the at least one edge part of the lamp | ramp 14, it can make it favorable in a design surface without being able to look directly from below. .

  And according to the lighting fixture 10, since the socket covers 15 and 16 were attached to the socket stand 22 holding the sockets 12 and 13, it is not necessary to add a new component and a normal component can be utilized.

  Furthermore, according to the lighting fixture 10, since the socket covers 15 and 16 become the small business trip length L1 toward the outward from the edge part of the fixture main body 11 at the time of opening, it interferes with the other member provided side by side. Can be prevented.

(Second Embodiment)
Next, the lighting fixture of 2nd Embodiment which concerns on this invention is demonstrated.
Note that, in the following second embodiment, components that are the same as those in the first embodiment described above or components that are functionally similar are denoted by the same or corresponding reference numerals in the drawings, or the description is simplified. Omitted.

  As shown in FIG. 14, the lighting fixture 40 of 2nd Embodiment which concerns on this invention has the engagement convex part 43 and the pivot (refer FIG. 15) 44 in the side plate 42 of the socket base 41, and a socket cover. The edge plate 46 of 45 has an engagement recess 47 and a guide slit (see FIG. 15) 48.

As shown in FIG. 15, the pivot 44 is a screw, and is inserted into the guide slit 48 of the socket cover 45 by being screwed to the side plate 42 of the socket base 41.
In the socket cover 45, a guide slit 48 provided in the edge plate 46 connects the rotational movement slit portion 50 in communication with the inner side of the instrument main body 11 of the parallel movement slit portion 49.

Next, the operation of the socket cover 45 will be described in detail.
As shown in FIG. 16, since the socket cover 45 is in the first position B1, the base 20 and the socket 12 of the lamp 14 are concealed by the lower cover portion 23 so that they cannot be seen directly from below.

As shown in FIG. 17, since the socket cover 45 is in the first position B <b> 1, the engagement concave portion 47 is engaged with the engagement convex portion 43 of the socket base 41, and the pivot 44 is parallel to the guide slit 48. It is located at the outer end of the moving slit 49.
As shown in FIG. 18, next, the socket cover 45 is slid and moved from the first position B1 to the second position B2 by an operator or user.

As shown in FIG. 19, when the socket cover 45 is pressed and slid from the first position B <b> 1 to the second position B <b> 2, the engagement concave portion 47 is detached from the engagement convex portion 43 of the socket base 41. .
At the same time, in the socket cover 45, the guide slit 48 moves from the parallel movement slit portion 49 to the rotational movement slit portion 50 with respect to the pivot 44.

As shown in FIG. 20, after the socket cover 45 is slid to the second position B <b> 2, an operator or user hooks a finger or the like on the opening 25 of the socket cover 45 and opens the socket cover 45 on the opening 25 side. Pull downwards.
As shown in FIG. 21, in the socket cover 45, the engagement concave portion 47 is detached from the engagement convex portion 43 of the socket base 41, and the rotational movement slit portion 50 of the guide slit 48 is made with respect to the pivot 44. At the position at the upper end, the opening 25 side is pulled downward.

Therefore, the socket cover 45 is rotated downward while being supported by the pivot 44 positioned at the upper end of the rotational movement slit portion 50, and the socket cover 45 is opened.
At this time, the socket cover 45 is formed so that the end cover portion 24 is inclined from the end portion of the instrument body 11 toward the diagonally inward direction. The business trip length L2 becomes smaller from the department toward the outside.
As shown in FIG. 22, when the socket cover 45 is opened, the base 20 and the socket 12 of the lamp 14 are exposed, and the lamp 14 is replaced.

  According to the luminaire 40 of the second embodiment, since the screw is applied to the pivot 44 that supports the socket cover 45, it is possible to reduce the mold cost without performing integral molding, which is advantageous in terms of cost. it can.

  In addition, in the lighting fixture of this invention, an instrument main body, a socket, a power supply box, a power supply unit, etc. are not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

DESCRIPTION OF SYMBOLS 10,40 Lighting fixture 11 Appliance main body 12,13 Socket 14 Lamp 15,16,4 Socket cover 21 Base (end part member)
22,41 socket stand

Claims (4)

As a light source, a luminaire in which a straight tube lamp with a base is used,
An instrument body;
A socket in which the straight tube lamp is mounted;
A socket base that is provided at both ends of the appliance body in the longitudinal direction of the straight tube lamp, and holds the socket;
Covering the end portion including the base of the straight tube lamp and the socket so that the straight tube lamp cannot be directly seen from below when attached to the socket base and the straight tube lamp is mounted in the socket. When replacing the tube lamp, a socket cover that slides along the longitudinal direction of the straight tube lamp and pivots downward to expose the base; and
Have
The socket base is
Provided so that the socket is sandwiched at both left and right ends in a cross-sectional view when the lighting fixture in a state where the socket cover is not slid is cut along a plane perpendicular to the longitudinal direction of the straight tube lamp. A pair of side plates,
An engaging convex portion provided on each of the pair of side plates and having a protrusion protruding from the side plate toward the socket;
A guide slit formed in each of the side plates;
Have
The guide slit is
A first slit portion extending along the longitudinal direction of the straight tube lamp;
A second slit portion that is coupled to the first slit portion and extends obliquely downwardly away from the center of the instrument body as it goes downward;
Have
The socket cover is
Provided so that the socket is sandwiched at both left and right ends in a cross-sectional view when the lighting fixture in a state where the socket cover is not slid is cut along a plane perpendicular to the longitudinal direction of the straight tube lamp. And a pair of edge plates located inside each side plate of the socket base,
It is provided on each of the edge plates and engages with the protrusions of the engaging projections provided on the side plates of the socket base, and the socket cover slides along the longitudinal direction of the straight tube lamp. An engagement recess that is disengaged from the protrusion when
The socket cover is fixed to each edge plate , inserted into each guide slit formed in each side plate of the socket base, and supported so that the socket cover does not fall off the socket base, and from the protrusion A pair of pivots serving as pivot axes when the socket cover in a detached state pivots downward;
A lighting fixture having. The lighting fixture according to claim 1,
In the side view of the lighting fixture in a state in which the socket cover is not slid, the end of the socket cover on the side far from the center of the straight tube lamp among the end portions in the longitudinal direction of the straight tube lamp. The contour line that determines the outer shape is inclined obliquely downward from the upper end of the socket cover so as to approach the center of the straight tube lamp,
Each pivot is located at an end of the first slit portion closer to the center of the straight tube type lamp in a state where the socket cover is not slid. As the pivot moves in the first slit portion, the socket cover is detached from the projection, and as each pivot moves the second slit portion, the socket cover rotates, and the instrument body A lighting fixture in which the rotation of the socket cover is restricted so that the distance from the end in the longitudinal direction of the straight tube lamp to the lower end of the contour line does not exceed a predetermined length. As a light source, a luminaire in which a straight tube lamp with a base is used,
An instrument body;
A socket in which the straight tube lamp is mounted;
A socket base that is provided at both ends of the appliance body in the longitudinal direction of the straight tube lamp, and holds the socket;
Covering the end portion including the base of the straight tube lamp and the socket so that the straight tube lamp cannot be directly seen from below when attached to the socket base and the straight tube lamp is mounted in the socket. When replacing the tube lamp, a socket cover that slides along the longitudinal direction of the straight tube lamp and pivots downward to expose the base; and
Have
The socket base is
Provided so that the socket is sandwiched at both left and right ends in a cross-sectional view when the lighting fixture in a state where the socket cover is not slid is cut along a plane perpendicular to the longitudinal direction of the straight tube lamp. A pair of side plates,
An engaging convex portion provided on the pair of side plates and having a protrusion protruding from the side plate toward the socket;
A pair of pivots fixed to the side plates;
Have
The socket cover is
Provided so that the socket is sandwiched at both left and right ends in a cross-sectional view when the lighting fixture in a state where the socket cover is not slid is cut along a plane perpendicular to the longitudinal direction of the straight tube lamp. And a pair of edge plates located inside each side plate of the socket base,
Engagement provided on each of the edge plates and engaged with the protrusions of the engaging protrusions provided on the side plates of the socket base and separated from the protrusions by sliding the socket cover. A recess,
A guide slit formed in each edge plate and into which each pivot is inserted;
Have
The guide slit is
In a state where the socket cover is not slid, a first slit portion extending along the longitudinal direction of the straight tube lamp;
A second slit portion that is connected to the first slit portion and extends obliquely upward so as to approach the center of the straight tube lamp as it goes upward;
Have
The pivot covers provided on the side plates of the socket base are inserted into the guide slits formed on the edge plates of the socket cover, so that the socket cover is detached from the socket base. The socket cover that is supported by the pivots so as not to be detached from the protrusions can be rotated downward about the pivots. The lighting fixture according to claim 3,
In the side view of the lighting apparatus in a state in which the socket cover is not slid, the end of the socket cover on the side far from the center of the straight tube lamp among the end portions of the socket tube in the longitudinal direction The contour line that determines the outer shape of the socket is inclined obliquely downward from the upper end of the socket cover so as to approach the center of the straight tube lamp,
Each pivot is located at an end of the first slit portion far from the center of the straight tube lamp in a state where the socket cover is not slid. When the pivot moves in the first slit portion, the socket cover is detached from the projection, and the socket cover rotates when each pivot moves obliquely upward in the second slit portion. In addition, the lighting fixture in which the rotation of the socket cover is restricted so that the distance from the end portion of the fixture body in the longitudinal direction of the straight tube lamp to the upper end of the contour line does not exceed a predetermined length.

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