JP4219239B2 - Luminaire cover removal structure - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for removing a cover of a lighting fixture, and in particular, a fixture main body having a substantially cross-sectional shape having a bottom plate and a pair of side plates rising substantially at right angles from both side edges of the bottom plate, and the fixture main body An instrument cover that is removably fitted to the top of the instrument body, and the instrument cover is free of the pair of side plates of the instrument body that are suspended along the side edges of the top plate. The present invention relates to a cover removal structure in a lighting fixture comprising at least a pair of side plates elastically fitted to the ends from the inside.

  Conventionally, as described in Patent Document 1, when a plurality of elongated luminaires each provided with a rod-like fluorescent lamp are connected in the longitudinal direction to each other and arranged in tandem, non-light emitting portions at both ends of each fluorescent lamp are provided. For example, as shown in FIG. 14, a fluorescent lamp 20 is proposed in which a base 23 having terminal pins 22, 22 is provided on both side portions in the longitudinal direction of a rod-like tube body 21 (Patent Document 1). reference).

  The luminaire 1 to which the fluorescent lamp 20 is mounted includes a perspective view of a main part of FIG. 14, a plan view of a main part of FIG. 15, and a cross-sectional view of FIGS. 16 and 17 (FIG. 17 is a cross-sectional view taken along line 17-17 in FIG. 15), and includes a bottom plate 3 and a pair of side plates 4 and 5 that rise substantially perpendicularly from both side edges of the bottom plate 3. An instrument main body 2 made of an aluminum drawing material having a substantially cross-sectional shape, and an instrument cover 6 that is detachably fitted to the instrument main body 2 and covers the upper side of the instrument main body 2 are provided.

  The instrument cover 6 is made of an aluminum drawing material including a top plate 7 and a pair of side plates 8 and 9 that are suspended along both side edges of the top plate 7, and these side plates 8 and 9 are side plates of the instrument body 2. It is configured to be elastically fitted to the free ends of 4, 5 from the inside. As is apparent from FIGS. 16 and 17, protrusions 4a and 5a are formed along the upper edge on the inner side of the upper edge of the side plates 4 and 5 of the instrument body 2, and the instrument cover is correspondingly formed. Elastic edge portions 8a and 9a that are elastically fitted to the protrusions 4a and 5a from the inside are formed along the lower edge at the lower edge of the side plates 8 and 9, respectively. In the state in which the instrument cover 6 is fitted to the instrument body 2, there is a dividing line L between the instrument body 2 and the instrument cover 6 in which the outer surfaces of both side surfaces of the lighting instrument 1 extend linearly in the length direction. Consists of appearing planes.

  On the bottom plate 3 in the fixture body 2, the socket 11 having slots 11 a, 11 a into which the terminal pins 22, 22 of the fluorescent lamp 20 are inserted is formed on both sides of the base 23 of the fluorescent lamp 20. A spring member 12 that is elastically fitted to the protrusion 23 a and holds the fluorescent lamp 20 is fixed via the fixing member 10.

  On the other hand, a wide opening 14 that allows the socket 11 and the spring member 12 to face the outside is cut at both longitudinal ends of the top plate 7 of the instrument cover 6 from the longitudinal edge of the top plate 7. It is formed in a substantially rectangular shape. The opening 14 includes side edges 14b and 14b substantially parallel to the side plates 8 and 9 of the instrument cover 6, and a back edge 14a substantially orthogonal to the side edges 14b and 14b.

  The fixing member 10 supports the socket 11 and the spring member 12, and extends in the extending direction of the top plate 7 to extend below the top plate 7 substantially in parallel with the bottom plate 3. A plate portion 15 that rises substantially parallel to the edge 14 a and reaches the back surface of the top plate 7, and is bent at a substantially right angle from the upper end of the plate portion 15 in the direction opposite to the opening portion 14 side, and along the back surface of the top plate 7 And a plate portion 16 extending substantially in parallel. Then, a screw (not shown) is screwed into the screw hole 17 formed in the plate portion 16 through a small hole 18 formed in the top plate 7 of the instrument cover 6 so that the instrument cover 6 is fixed to the instrument body 2. It is configured to be.

  Further, end plates 19 are fixed to both ends of the instrument body 2 in the longitudinal direction. The end plate 19 is a horizontal plate that is fixed on the bottom plate 3 by using a screw 40 and a nut 41, and is bent at a substantially right angle from a lower end of the vertical plate portion 19b. The left and right end portions of the vertical plate portion 19b are formed with elongated openings 19a and 19a extending in the vertical direction.

  By the way, in the luminaire 1 having the above-described configuration, when the instrument cover 6 is removed from the instrument body 2, first, the screws fixing the instrument cover 6 to the plate 16 fixed to the instrument body 2 are removed. Then, as shown in FIG. 18, a tool such as a screwdriver is inserted into any opening 19 a of the end plate 19 of the instrument body 2 from the direction A, and the tip of this tool is placed on the bottom plate 3 of the instrument body 2. The part on the bottom plate 3 where the tip of the tool is in contact is moved by moving the hand side of the tool upward in the state where the tool is in contact with the edge of the back surface of the top plate 7. A force in the C direction acts on the top plate 7 with the point P1 on the edge of the back surface of the top plate 7 covering the upper side of the opening 19a as a point of action. Accordingly, the elastic edges 8a and 9a of the instrument cover 6 are bent inward by the ridges 4a and 5a of the instrument body 2, respectively, and get over the ridges 4a and 5a of the instrument body 2, respectively. Can be easily removed from the instrument body 2.

  However, such a removal method may cause the edge portion of the opening 14 of the top plate 7 to be deformed and reduce the commercial value. Further, as described above, the luminaire 1 includes the structural features of the fluorescent lamp 20. In many cases, there is no space on the end side in the longitudinal direction of the luminaire 1 and it is impossible to employ such a removal method.

In FIG. 18, the tool is inserted from the side edge 14b of the opening 14 into the lower surface of the top plate 7 from the direction B, and the hand side of the tool is moved downward with the point P2 on the opposite side edge 14b as a fulcrum. However, since a force in the C direction acts on the edge portion of the opening portion 14 of the top plate 7, the device cover 6 can be easily removed from the device body 2, but the edge portion of the opening portion 14 of the top plate 7 is not deformed. If the walls W1 and W2 are present on both sides of the luminaire 1 as in the case of indirect illumination shown in FIG. 19, it is impossible to adopt such a removal method.
JP 2001-210135 A

  The problem to be solved is that in such a luminaire, the instrument cover cannot be removed from the instrument body by inserting a tool from above into the top plate of the instrument cover.

The present invention relates to an instrument body having a substantially cross-sectional shape having a bottom plate and a pair of side plates that rise substantially perpendicularly from both side edges of the bottom plate, and the instrument body that is detachably fitted to the instrument body. An instrument cover covering the top of the instrument body, and the instrument cover is elastically attached from the inside to the free ends of the pair of side plates of the instrument body, which are suspended along the top plate and both side edges of the top plate. A detachment structure of the appliance cover in a lighting fixture comprising a pair of side plates to be fitted,
An opening is formed in the top plate of the instrument cover, and a fixing member having a portion exposed to the opening of the top plate is fixed to the bottom plate of the instrument body when the instrument cover is fitted to the instrument body. A groove-like gap that can be inserted from above the instrument cover in a state where the tip of a tool having a flat tip such as a minus driver is substantially parallel to the side plate of the instrument cover in the exposed portion. The edge part formed between the side edges of the said opening part is provided.

  When removing the instrument cover, a tool having a tip inserted into the gap from above is rotated in a predetermined direction (clockwise or counterclockwise) around an axis along the insertion direction. By applying a force toward the side plate to the side edge with the edge as a fulcrum and the side edge of the opening as an action point, at least one side plate of the instrument cover is detached from the fitting portion with respect to the instrument body. Configured as follows.

  The above-mentioned “from above” means that the top plate of the appliance cover faces upward. For example, the lighting fixture is attached to the ceiling so that the surface of the top plate faces downward. Means "from below", and means "from the side" when the luminaire is mounted on a vertical wall so that the surface of the top plate faces sideways. That is, “from above” means “from a direction substantially perpendicular to the surface of the top plate”.

  The instrument body is formed in an elongated shape with sockets for rod-shaped fluorescent tubes provided with terminal pins on both sides in the longitudinal direction at both ends in the longitudinal direction, and the instrument cover is wide so that the socket faces the outside. It is preferable that the opening portion is provided at the longitudinal end portion of the top plate.

  In that case, the side edge of the opening that forms the gap in which the tip of the tool is inserted between the edge of the fixing member as the tool abutting portion is the side of the wide opening that faces the socket to the outside The edge may be used as it is, but a narrow groove-like opening may be provided separately from the opening. When a narrow groove-shaped opening is provided, a screw hole for fixing the instrument cover to the instrument body is formed in the portion of the fixing member exposed to the opening, and the groove-shaped opening is formed. It is preferable that the width of the opening is set wider than the outer diameter of the shaft portion of the screw screwed into the screw hole and narrower than the outer diameter of the head.

  The above-described configuration is a case where an edge serving as a fulcrum is provided on the fixing member fixed to the bottom plate of the instrument body, but the end plates are fixed to both ends of the instrument body and the socket is exposed to the outside. When the opening of the top plate is cut from the end plate side, an edge serving as a fulcrum can be provided on the end plate.

  In that case, the end plate is exposed to the opening of the top plate, and a groove-like shape that can be inserted from above in a state where the tip end portion of the tool having a flat tip end portion is substantially parallel to the side plate of the instrument cover. By providing an edge that forms a gap with the side edge of the opening, and turning a tool in which the tip is inserted into the gap from above in a predetermined direction around an axis along the insertion direction, A force toward the side plate on the side edge side can be applied to the side edge of the opening.

  Or when the said end plate is provided with the board part fixed to the bottom board of an instrument main body, the edge part used as the said fulcrum is provided on this board part. In that case, the tip of the tool inserted from above into the opening is brought into contact with the edge, and the portion closer to the hand side than the tip of the tool is brought into contact with the side edge of the opening. Then, by moving the proximal side of the tool to the side edge side, a force directed toward the side plate on the side edge side can be applied to the side edge of the opening.

Furthermore, you may provide the edge part used as the said fulcrum on the baseplate of an instrument main body.

  According to the present invention, a pair of side plates elastically fitted from the inside to the free ends of the pair of side plates of the instrument body, wherein the instrument cover is suspended along the top plate and both side edges of the top plate. In this configuration, one side of the tool inserted from above into the opening formed in the top plate of the instrument cover is brought into contact with the side edge of the opening, and the other side of the tool is fixed to the instrument body. The edge provided on the fixing member, the edge provided on the end plate fixed to the instrument body, or the edge provided on the bottom plate of the instrument body, and using these edges as fulcrums, By applying a force toward the side plate to the edge with the side edge of the opening as a point of action, the side of the one side plate of the instrument cover is placed in a plane substantially perpendicular to the top plate including the force vector. Lift the side plate on the opposite side centering on the fitting part to the instrument body Since Do rotational moment is generated, I flexure coupled with the elastic fitting of the instrument cover by the force, the fitting portion of at least opposite easily disengaged it.

  That is, according to the present invention, the instrument cover can be easily removed from the instrument body without deforming the instrument cover by inserting a tool from above the top plate into the opening formed in the top plate of the instrument cover. In particular, the lighting device is configured so that the fixture body is formed in an elongated shape with sockets for rod-shaped fluorescent tubes provided with terminal pins on both sides in the longitudinal direction at both ends in the longitudinal direction, and arranged in tandem. It is suitable for application to a lighting fixture that is used in a state where there are walls before and after the lighting fixture, as in the case of fixtures or indirect lighting.

  Further, according to the present invention, the instrument cover can be removed from the instrument body without applying an excessive force to the instrument cover. Therefore, there is an advantage that the instrument cover is not deformed to reduce the commercial value.

  Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.

  1 to 5 are views showing a first embodiment of the structure for removing a cover of a lighting fixture according to the present invention. FIG. 1 is a plan view of an essential part corresponding to FIG. 15, and FIG. 3 is a sectional view taken along line 2, FIG. 3 is a plan view of the main part of the instrument body, and FIGS. 4 and 5 are an enlarged plan view and a sectional view for explaining how to remove the instrument cover.

  In the present embodiment, since most of the configuration is the same as the configuration shown in FIGS. 15 to 17, the same portions are denoted by the same reference numerals, and redundant description is omitted.

  1 to 3, the fixing member 10 fixed to the bottom plate 2 of the instrument body 1 supports the socket 11 and the spring member 12 and supports the bottom plate 3 in the same manner as the configuration shown in FIGS. 15 to 17. A plate portion 13 extending substantially in parallel, a plate portion 15 rising substantially at right angles from the end of the plate portion 13 and substantially parallel to the plate portion 19 and reaching the back surface of the top plate 7, and an opening portion 14 side from the upper end of the plate portion 15 Is formed by a plate portion 16 that is bent at a substantially right angle in the opposite direction and extends substantially parallel to the bottom plate 3 along the back surface of the top plate 7, but in the form of the present embodiment, the plate portion 15, Notches 30 and 30 extending from the plate portion 15 to the plate portion 16 are formed on both sides of the plate portion 16, whereby the side plates of the instrument body 2 are seen on both sides of the plate portion 16 as viewed from above as shown in FIG. Edge portions 31, 31 extending substantially parallel to 4, 5 are formed.

  On the other hand, on the top plate 7 of the instrument cover 6, a part of the plate portion 16 is extended from the inner edge of the opening portion 14 exposing the socket 11 onto the plate portion 16 of the fixing member 10 substantially parallel to the side plates 8 and 9. A pair of left and right groove-shaped openings 35, 35 to be exposed are formed. And the screw hole 17 formed in the board part 16 in order to fix the instrument cover 6 to the instrument main body 2 is exposed in the back of one opening part 35, For this reason, the opening parts 35 and 35 are FIG. As is apparent from the above, the groove has a width larger than the outer diameter of the shaft portion of the screw screwed into the screw hole 17 and narrower than the outer diameter of the head.

  Each of the openings 35, 35 is between a side edge 35 a on the side plate side parallel to the side plates 8, 9 and an edge 31 of each notch 30 formed in the plate portion 16 of the fixing member 10. Provided in such a position that a groove-like gap is formed which can be inserted from above with the tip of the tool T having a flat tip similar to that of a flat-blade screwdriver being substantially parallel to the side plates 8 and 9. Yes.

  Therefore, one of the gaps formed between the edges 31 and 31 of the notches 30 and 30 and the side edges 35a and 35a of the openings 35 and 35 exposed in the openings 35 and 35, in this case 4 and 5, the tip of the tool T is inserted from above, and one side of the tip is brought into contact with the edge 31 of the plate 16 of the fixing member 10. When the other side is brought into contact with the side edge 35a of the opening 35 and rotated about 90 degrees counterclockwise around the axis of the insertion direction of the tool T, the cut formed in the fixing member 10 is obtained. With the point P3 on the edge 31 of the notch 30 as a fulcrum and the point P4 on the side edge 35a of the opening 35 of the instrument cover 6 as an action point, the side plate 9 is substantially parallel to the plate surface of the top plate 7 with respect to the side edge 35a. A rightward force F directed to the side acts.

  In this case, as shown in FIG. 5, the side plate 9 of the instrument cover 6 is suspended from the edge of the top plate 7, and the elastic edge 9 a formed at the lower end of the side plate 9 is the inner side of the side plate 5 of the instrument body 2. Since the side plate 9 is slightly bent by the force F and the top plate 7 is moved slightly to the right by the force F, the component force G is directed obliquely upward to the right from the action point P4. This component force G exerts a clockwise rotational moment on the instrument cover 6 that lifts the side plate 8 on the opposite side around the ridge 5a in a plane parallel to the paper surface including the component force G. Therefore, the side plate 8 on the opposite side of the instrument cover 6 that is elastically fitted to the inside of the side plate 4 of the instrument body 2 is detached from the side plate 4 of the instrument body 2 in the H direction. Will come off the side plate 5 of the instrument body 2.

  Similarly, the tip of the tool T is inserted from above into the gap formed between the edge 31 of the left notch 30 in FIGS. 4 and 5 and the side edge 35a of the left opening 35 on the side plate 4 side. The right side plate 9 of the instrument cover 6 can be removed from the side plate 5 of the instrument body 2 by the same principle by rotating the tool T about 90 degrees clockwise around the axis of the insertion direction of the tool T. it can.

  As is clear from the above description, according to the present embodiment, the edges 31 and 31 of the notches 30 and 30 and the openings 35 and 35 that are exposed to the openings 35 and 35 formed in the top plate 7 of the instrument cover 6. The tip of the tool T having a flat tip such as a flathead screwdriver is inserted from above into either one of the gaps formed between the side edges 35a and 35a of the 35, and the tool T is inserted in the insertion direction. Since the instrument cover 6 can be easily removed without being deformed by simply rotating it approximately 90 degrees clockwise or counterclockwise around the axis, the instrument body 2 is connected to the side portions at both ends in the longitudinal direction. The socket 11 for the rod-like fluorescent tube 21 provided with the pins 22 is provided in both ends in the longitudinal direction and is formed in an elongated shape, which is suitable for the luminaire 1 configured to be arranged in tandem.

  6 to 10 are views showing a second embodiment of the structure for removing the cover of the luminaire according to the present invention, FIG. 6 is a plan view of the main part corresponding to FIG. 15, and FIG. FIG. 8 is a rear view of the end plate, and FIG. 9 and FIG. 10 are a plan view and a sectional view for explaining how to remove the instrument cover.

  In the present embodiment, the upper edge and the opening of the vertical plate portion 19b on the inner surface of the vertical plate portion 19b of the end plate 19 in which the horizontal plate portion 19c is fixed to the bottom plate 3 of the instrument body 2 by screws 40 and nuts 41. Projections 32, 32 project from corner regions where the upper ends of the vertical edges inside 19 a, 19 a intersect, and each projection 32 is formed on the instrument cover 6 with the instrument cover 6 fitted to the instrument body 2. The top plate 7 includes an edge portion 32a extending substantially parallel to the side edge 14b of the opening portion 14. And this edge part 32a made the front-end | tip part of the tool T provided with the flat front-end | tip part similar to a flathead screwdriver or the same between the side plates 8 and 9 between the side edges 14b of the opening part 14 of the top plate 7 substantially. It is exposed to the opening 14 in such a manner that a groove-like gap that can be inserted from above is formed.

  Accordingly, as shown in FIGS. 9 and 10, one of the gaps formed between the edges 32a and 32a of the protrusions 32 and 32 and the side edges 14b and 14b of the opening 14, left in FIG. On the other hand, in FIG. 10, when the tip end of the tool T is inserted from above into the right gap and rotated about 90 degrees counterclockwise around the axis of the insertion direction of the tool T, the end plate 19 side The rightward force toward the side plate 8 of the instrument cover 6 with respect to the edge 32a with the point P5 on the edge 32a of the instrument cover 6 as a fulcrum and the point P6 on the side edge 14b of the opening 14 of the instrument cover 6 as the action point Since F acts, the right side plate 9 of the instrument cover 6 can be removed from the side plate 5 of the instrument body 2 on the same principle as in the first embodiment described above, and at the same time, the opposite side plate 8 is also removed from the instrument body 2. The second side plate 4 will come off.

  FIGS. 11 to 13 are views showing a third embodiment of the structure for removing the cover of the luminaire according to the present invention, FIG. 11 is a plan view of the main part corresponding to FIG. 15, and FIG. 13 and 13 are cross-sectional views for explaining how to remove the instrument cover.

  In the present embodiment, the horizontal plate portion 19c is projected on the horizontal plate portion 19c of the end plate 19 fixed to the bottom plate 3 of the instrument main body 2 by screws 40 and nuts 41, and extends substantially in parallel with the side plates 4 and 5. , 50 are formed. These projecting edges 50 and 50 are formed so that the edge portions 50a and 50a substantially parallel to the side edges 14b and 14b of the opening 14 of the top plate 7 are connected to the side edges 14b. It is prepared below.

  Therefore, as shown in FIG. 13, a flat screw screwdriver or similar flat tip portion is provided, and the tool T is inserted into the opening portion 14 from above the top plate 7, and the tip portion of the tool T is inserted into, for example, the right protruding edge 50. By bringing the part closer to the hand than the tip part of the tool T into contact with the side edge 14b of the opening 14 and moving the hand side of the tool T to the right in FIG. With the portion 50a as a fulcrum P7 and the side edge 14b of the opening 14 of the instrument cover 6 as an action point P8, a force F toward the side plate 8 acts on the side edge 14b.

  Therefore, the side plate 9 of the instrument cover 6 can be removed from the side plate 5 of the instrument body 2 on the same principle as the first and second embodiments described above, and at the same time, the opposite side plate 8 is also the side plate of the instrument body 2. It will deviate from 4.

  In addition, although a present Example is the case where the protrusions 50 and 50 each provided with the edge part 50a used as the fulcrum of a tool are provided on the horizontal board part 19c of the end plate 19, illustration and detailed description are abbreviate | omitted. However, it is obvious that the same function can be obtained by directly providing a protrusion having the same edge as the above as a fulcrum of the tool on the bottom plate 3 of the instrument body 2.

  Further, when the instrument main body 2 has a thick bottom plate 3, two concave grooves extending substantially parallel to the side plates 4 and 5 are formed on the bottom plate 3 instead of the protrusions 50 and 50, and these concave grooves are formed. It is also possible to remove the instrument cover 6 from the instrument body 2 using the edge of the instrument as a fulcrum.

It is a principal part top view which shows the 1st Example of the removal structure of the cover of the lighting fixture by this invention. FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. It is a principal part top view of the fixture main body of the lighting fixture of FIG. It is an enlarged plan view explaining how to remove the instrument cover of the lighting apparatus of FIG. It is sectional drawing explaining how to remove the instrument cover of the lighting fixture of FIG. It is a principal part top view which shows the 2nd Example of the removal structure of the cover of the lighting fixture by this invention. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. It is a rear view of the end plate of the lighting fixture of FIG. It is a top view explaining how to remove the instrument cover of the lighting apparatus of FIG. It is sectional drawing explaining the method of removing the instrument cover of the lighting fixture of FIG. It is a principal part top view which shows the 3rd Example of the removal structure of the cover of the lighting fixture by this invention. It is a rear view of the end plate of the lighting fixture of FIG. It is sectional drawing explaining how to remove the instrument cover of the lighting fixture of FIG. It is a principal part perspective view which shows the conventional lighting fixture with the fluorescent lamp with which this is mounted | worn. It is a principal part top view of the lighting fixture of FIG. FIG. 16 is a cross-sectional view taken along line 16-16 in FIG. It is sectional drawing along the 17-17 line of FIG. It is a perspective view explaining how to remove the fixture cover of the conventional lighting fixture. It is a perspective view which shows roughly an example of arrangement | positioning of the lighting fixture in indirect lighting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Appliance main body 3 Bottom plate of an instrument main body 4,5 Side plate of an instrument main body 6 Instrument cover 7 Top plate of an instrument cover 8,9 Side plate of an instrument cover 10 Fixing member 14 Opening 14b Side edge of an opening 30 Cutting of a fixing member Notch 31 notch edge 32 protrusion 32a protrusion edge 35 opening 35a side edge of opening 50 protrusion 50a edge of protrusion

Claims (7)

An instrument body having a substantially cross-sectional shape having a bottom plate and a pair of side plates that rise substantially at right angles from both side edges of the bottom plate, and is detachably fitted to the instrument body to cover the upper part of the instrument body An instrument cover, and the instrument cover is elastically fitted from the inside to the free ends of the top plate and the pair of side plates of the instrument body that are suspended along both side edges of the top plate. A detachment structure of the appliance cover in a lighting fixture comprising a pair of side plates,
Forming an opening in the top plate of the instrument cover;
A fixing member having a portion exposed to the opening of the top plate in a state where the device cover is fitted to the device main body is fixed to a bottom plate of the device main body, and a flat tip portion is provided on the exposed portion. An edge that forms a groove-like gap between the opening and the side edge of the tool cover in a state where the tip of the tool is substantially parallel to the side plate of the tool cover. Provided,
The tool having the tip inserted into the gap from above is rotated in a predetermined direction around an axis along the insertion direction, and the side edge of the opening acts on the edge of the fixing member as a fulcrum. A lighting device characterized in that at least one side plate of the device cover is detached from a fitting portion with respect to the device body by applying a force toward the side plate on the side edge as a point. Cover removal structure.   The instrument body is formed to be elongated with a socket for a rod-like fluorescent tube provided with terminal pins at both ends in the longitudinal direction at both ends in the longitudinal direction, and the instrument cover has a wide width so that the socket faces the outside. The luminaire cover removing structure according to claim 1, wherein the opening is provided at a longitudinal end of the top plate.   A screw hole for fixing the instrument cover to the instrument body is formed in the portion of the fixing member exposed to the opening formed in the top plate of the instrument cover, and an opening having the side edge is formed. 3. The cover of a lighting fixture according to claim 2, wherein the cover is a groove having a width wider than an outer diameter of a shaft portion of a screw screwed into the screw hole and narrower than an outer diameter of the head. Removal structure. Approximate character having a bottom plate provided with sockets for rod-shaped fluorescent tubes provided with terminal pins at both ends in the longitudinal direction, and a pair of side plates rising substantially at right angles from both side edges of the bottom plate. An elongated instrument body having a cross-sectional shape, an end plate fixed to both ends of the instrument body, and an instrument cover that is detachably fitted to the instrument body and covers an opening between the pair of side plates of the instrument body And a pair of the instrument covers that are elastically fitted from the inside to the free ends of the pair of side plates of the instrument body that are suspended along both side edges of the top plate and the top plate. A luminaire cover removal structure comprising side plates, and at both ends in the longitudinal direction of the top plate, the socket is provided with openings that expose the socket to the outside,
In a state where the instrument cover is fitted onto the instrument body on the end plate, a tool inserted into the opening from above the top plate of the instrument cover is brought into contact with one side of the side edge of the opening. Provide an edge that the other side can come into contact with
Inserting the tool into the opening, applying the force toward the side plate on the side edge with respect to the side edge, with the edge on the end plate as a fulcrum and the side edge of the opening as an action point Accordingly, at least one side plate of the appliance cover is configured to be detached from the fitting portion with respect to the appliance main body.   The edge on the end plate is exposed in the opening, and a groove-like shape that can be inserted from above in a state where the tip of the tool having a flat tip is substantially parallel to the side plate of the instrument cover. Provided in a mode in which a gap is formed between the side edge of the opening, and the tool having the tip inserted into the gap from above is rotated in a predetermined direction around an axis along the insertion direction. 5. The structure for removing a cover of a lighting fixture according to claim 4, wherein a force toward the side plate on the side edge acts on the side edge of the opening.   The end plate includes a plate portion fixed to the bottom plate of the instrument body, the edge portion is provided on the plate portion, and the tip portion of the tool inserted from above into the opening portion is used as the edge portion. Abutting a portion closer to the proximal side than the tip of the tool with the side edge of the opening, and moving the proximal side of the tool to the side edge side, 5. The structure for removing a cover of a lighting fixture according to claim 4, wherein a force directed to the side plate on the side edge side is applied. Approximate character having a bottom plate provided with sockets for rod-shaped fluorescent tubes provided with terminal pins at both ends in the longitudinal direction, and a pair of side plates rising substantially at right angles from both side edges of the bottom plate. An elongated instrument body having a cross-sectional shape, and an instrument cover that is detachably fitted to the instrument body and covers an opening between the pair of side plates of the instrument body, the instrument cover comprising a top plate, A pair of side plates that are suspended along both side edges of the top plate and elastically fitted to the free ends of the pair of side plates of the instrument body from the inside, respectively, at both ends in the longitudinal direction of the top plate , A structure for removing the cover of the luminaire comprising an opening for exposing the socket to the outside,
In a state where the instrument cover is fitted onto the instrument body on the bottom plate of the instrument body, a tool inserted into the opening from above the top plate of the instrument cover hits one side against the side edge of the opening. An edge that can contact the other side in the contacted state is provided,
The tool is inserted into the opening from above, the tip of the tool is brought into contact with the edge, and a portion closer to the hand side than the tip of the tool is used as a side edge of the opening. At least one side plate of the instrument cover is applied by applying a force toward the side plate on the side edge side with respect to the side edge using the edge as a fulcrum and the side edge of the opening as a working point. A structure for removing the cover of the lighting apparatus, wherein the apparatus is configured to be detached from the fitting portion with respect to the apparatus body.

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