JP2006012535A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow easy replacement of a lamp even if there is no sufficient clearance for holding the lamp with fingers, and to allow such design that the cross section has the minimum dimension. <P>SOLUTION: This luminaire comprises a body 1, and a lamp holding member 4 housed inside the main body 1 together with the lamp from an opening of the body 1 and capable of holding the lamp while the lamp is connected. One end of the lamp holding member 4 along the length thereof is designed to be taken downward from within the body 1, while the other end is thus rotatably attached to the body 1. A locking section 7 is provided at the one end face of the lamp holding member 4, and a locked section 8 that is unlockably locked by the locking section 7 is provided on the side of the body 1. As a result, it is possible to replace the lamp even if the body 1 is so small in cross section that there is no sufficient clearance for holding the lamp with fingers between a sidewall of the body 1 and the lamp. Moreover, since the locking section 7 and the locked section 8 are located at the one end face of the lamp holding member 4, the cross section of the body can be designed to have the minimum dimension. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lighting fixture using a straight tube fluorescent lamp or the like.

  As shown in FIG. 13, the conventional lighting fixture includes components such as a box-shaped main body 1 having an opening below, a reflector 2 attached to the inner surface of the main body 1, and a lamp 3 housed inside the main body 1. It is composed of

  Conventionally, when the lamp is replaced, a clearance sufficient to hold the lamp 3 with a finger is provided between the reflector 2 and the lamp 3, and when the lamp socket is a rotary type after the lamp 3 is held with a finger. Rotate the lamp 90 ° and remove it. When the lamp socket is a push-in type, the lamp 3 is removed by pushing the lamp 3 on one side along the lamp axis and pulling it down. When installing the lamp, reverse the procedure.

As another lighting fixture, there is a configuration in which the lamp is held by the lamp holding member and the other end side of the lamp is rotatably attached to the main body so that the one end side of the lamp can be pulled down. (See Patent Document 1).
JP 2001-307512 A

  However, in the lighting fixture of FIG. 13, when replacing the lamp, if the cross section of the main body is so small that there is no clearance for grasping the lamp with a finger, the operation is difficult. On the other hand, if the clearance is secured, there is a problem that the main body is enlarged.

  Moreover, in the lighting fixture shown by patent document 1, since the lamp | ramp one end side of a lamp holding member can be pulled down, it can respond even when there is no clearance which grasps a lamp with a finger. However, since the upper surface of the intermediate portion of the lamp holding member is detachably attached to the main body, the attachment portion increases the cross section of the main body.

  Accordingly, an object of the present invention is to provide a luminaire that can be easily replaced even when there is no clearance for gripping the lamp with a finger, and that the cross section can be designed to the minimum dimension.

  In order to solve the above-mentioned problems, a lighting apparatus according to claim 1 of the present invention is a box-shaped main body having an opening below, and is held together with the lamp inside the opening of the main body and held in a connected state. A lamp holding member capable of rotating, and the other end of the lamp holding member is rotatably attached to the main body so that one end side in the longitudinal direction of the lamp holding member is taken out from the inside of the main body, and one end of the lamp holding member. A locking portion is provided on the end surface side of the main body, and a locked portion that is detachably locked to the locking portion is provided on the main body side.

  According to a second aspect of the present invention, there is provided the lighting apparatus according to the first aspect, wherein a pull-down operation portion is formed to project at one end of the lamp holding member.

  The lighting fixture according to claim 3 is the lighting fixture according to claim 1, wherein the locking portion protrudes outward in the longitudinal direction of the lamp holding member and is locked to the locked portion, and the lamp holding. And an operation portion that is exposed to the lower side of the member and that can be unlocked.

  The lighting fixture according to claim 4 is the lighting fixture according to claim 2, wherein the pull-down operation portion protrudes outward in the longitudinal direction of the lamp holding member at a lower end of one end face of the lamp holding member, and the locking portion is A spring having an engaging portion that is elastically deformable and disposed above the pull-down operation portion, and the locked portion has a hole portion that the engaging portion locks, and is movable in the vertical direction; L-shaped metal fittings composed of a vertical piece held on the side and a horizontal piece arranged substantially on the same plane as the pull-down operation part, and the engagement of the engaging part and the hole is achieved by pushing the horizontal piece. The upper surface of the pull-down operation unit is exposed.

  According to the lighting apparatus of the first aspect of the present invention, the other end of the lamp holding member is pivotally attached to the main body so that one end side in the longitudinal direction of the lamp holding member is taken out from the inside of the main body, and the lamp holding member A locking part is provided on the end face side of one end, and a locked part that is detachably locked to the locking part is provided on the main body side, so that the clearance between the main body and the lamp is sufficient to hold the lamp with a finger. It is possible to replace the lamp even if the main body has a smaller cross section. In addition, since the locking portion and the locked portion are arranged on the end face side of one end of the lamp holding member, it is possible to design the cross section of the main body to the minimum dimension, and it is a material-saving, slim, and well-designed space. It can be set as the lighting fixture which melts.

  According to the second aspect of the present invention, since the pull-down operation portion is formed to project at one end of the lamp holding member, when replacing the lamp, the pull-down operation portion is held or pulled down with a hand so that the lock portion and the engaged portion are engaged. The stop portion is unlocked and the lamp holding member can be pulled down.

  According to a third aspect of the present invention, the locking portion protrudes outward in the longitudinal direction of the lamp holding member and is locked to the locked portion, and is exposed to the lower side of the lamp holding member and can be unlocked. Therefore, when replacing the lamp, by operating the operation unit and retracting the claw, the claw and the locked part are unlocked, and the lamp holding member descends by its own weight. . Further, since the locking is not released unless the operation unit is operated, the structure is strong against vibration.

  According to a fourth aspect of the present invention, the pull-down operation portion protrudes outward in the longitudinal direction of the lamp holding member at the lower end of the end surface of one end of the lamp holding member, and the engaging portion is disposed above the pull-down operation portion and can be elastically deformed. The locked portion has a hole portion that the engaging portion locks, and a vertical piece that is held on the main body side so as to be movable in the vertical direction and is arranged on the same plane as the pull-down operation portion. This is an L-shaped bracket consisting of a piece, and the engagement between the engaging part and the hole is released by pushing the horizontal piece, and the upper surface of the pull-down operation part is exposed. By pushing in, the engaging portion of the spring is released from the hole portion, but is pressed against the vertical piece by the elasticity of the spring, and the lamp holding member is temporarily held. In this state, since the exposed pull-down operation unit is held and pulled down, it can be pulled down in two stages, the risk of the lamp holding member falling is reduced, and safety is improved. In addition, when the lamp is mounted, the pull-down operation unit and the horizontal piece of the L-shaped bracket are disposed substantially flush with each other, so that the upper surface of the pull-down operation unit is not exposed and the appearance quality is good.

  The lighting fixture of 1st Embodiment of this invention is demonstrated based on FIGS. 1-3. FIG. 1 is a perspective view of an essential part of a lighting fixture according to a first embodiment of the present invention, FIG. 2 is an explanatory diagram of its operation, FIG. 3 (a) is a perspective view of a lamp mounting state of the lighting fixture, and FIG. It is a perspective view at the time of replacement | exchange.

  As shown in FIG. 3, this luminaire is similar to the conventional example in that it mainly includes components such as a main body 1, a reflector 2, and a lamp 3.

  That is, the main body 1 is a box-shaped component having an opening below the internal space formed between the opposing side walls, and the reflecting plate 2 is disposed along the inner surface of the side walls. As shown in FIG. 1, a plate 5 is provided near one end of the main body 1. A lamp holding member 4 that can hold the lamp in a state where it is connected to the socket is housed together with the lamp inside the opening of the main body 1. The lamp holding member 4 is rotatably attached to the main body 1 with a hinge or the like so that one end side in the longitudinal direction is taken out from the inside of the main body 1 (not shown). When the lamp holding member 4 is in the housed state, all the lamps are housed inside the opening of the main body 1. When the lamp holding member 4 is taken out downward, the side surface of the lamp end is exposed. Further, a locking portion is provided on one end face side of the lamp holding member 4, and a locked portion that is detachably locked to the locking portion is provided on the main body 1 side.

  In this case, the cross section of the lamp holding member 4 has a groove shape, and the upper end of the mounting piece 6 is fitted and fixed to one end thereof. The mounting piece 6 is disposed to face the plate 5 of the main body 1 so as to be opposed to each other. The mounting piece 6 is provided with a locking portion, and the plate 5 is provided with a locked portion. The locking portion is a spring 7 having a constricted portion 7 b which is continuous with a constricted portion 7 b fixed at both ends to the attachment piece 6 and has a portion 7 a extending on the constricted portion 7 b. The upper end of the expanded portion 7 a is positioned so as to prevent downward movement by a protrusion 6 a protruding from the mounting piece 6. The locked parts are ribs 8 formed in the plate 5 and facing in the lateral direction. The rib 8 is cut and raised into an L shape, and a taper is formed so that the lower part spreads. Further, as shown in FIG. 2A, the relationship between the dimension A of the spread part 7a of the spring 7, the dimension C of the constricted part 7b, and the inner dimension B of the rib 8 is set to A> C ≧ B in a natural state. ing.

  In addition, the lamp holding member 4 has a pull-down operation unit 9 that protrudes inwardly at the lower end of the end face at one end. In this case, the lower end of the mounting piece 6 is folded so that it is folded further inward so that the tip is outward, and the pulling down operation portion 9 is formed. The lower piece of the pull-down operation unit 9 is formed on substantially the same surface as the lower surface of the main body 1 and is excellent in design, and also protrudes in the opposite direction of the portion where the finger is hooked, so It is also possible to hide the locking portion of the stop. In addition, the structure of a latching | locking part and a to-be-latched part is not illustrated in FIG. Moreover, in FIG. 3, 19 is a ballast.

  Next, the lamp replacement operation of the lighting fixture will be described.

  As shown in FIG. 2, when the lamp is mounted, the lamp holding member 4 is pushed upward, so that the spring 7 enters between the opposing ribs 8 of the main body 1 and the spread portion 7a is pushed up in a compressed state. It is locked by fitting into the portion 7b.

  Further, when the lamp is removed, the width A of the widened portion 7a of the spring 7 is reduced by holding the pull-down operation portion 9 of the lamp holding member 4 or pulling it down with a hand, and the inner dimension B of the rib 8 is reduced. By becoming smaller, the lock can be released and pulled down.

  As described above, according to this embodiment, the lamp can be replaced even if the cross section of the main body 1 is so small that there is not enough clearance between the reflector 2 of the main body 1 and the lamp to hold the lamp with a finger. In addition, since the locking portion and the locked portion are disposed on the end face side of one end of the lamp holding member 4, it is possible to design the cross section of the main body 1 to the minimum dimension, saving material, being slim, and having good design. It can be set as the lighting fixture which melts into space. The rib 8 may be attached by welding. Further, the protruding direction of the pull-down operation unit 9 may be inside or outside. However, in the case of the inside, the space for pulling the finger down and hooking on the operation unit can be communicated with the storage space of the lamp, which is excellent in design.

  The lighting fixture of 2nd Embodiment of this invention is demonstrated based on FIG. FIG. 4A is a perspective view of an essential part of a lighting fixture according to a second embodiment of the present invention, and FIG. Note that the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 4, the lamp holding member 4 has a groove-shaped cross section, and the upper end of the mounting piece 10 is fitted and fixed to one end thereof. The mounting piece 10 is provided with a locking portion, and a locked portion is provided on the main body 1 side. The locking portion has a square hole portion 11 provided in the mounting piece 10. The locked portion is a spring 12 having an upper end fixed to the main body 1 and formed with a fitting portion 12a that fits into the hole portion 11 of the mounting piece 10 at the lower portion. The fitting portion 12a is formed in a substantially U-shape, and the lower piece 12b is inclined downward to be able to contact one end of the lamp holding member 4. In addition, the lower end of the mounting piece 10 is folded so as to be folded further inwardly so that the front end faces outward to form a pull-down operation unit 13.

  Next, the lamp replacement operation of the lighting fixture will be described.

  As shown in FIG. 4, when the lamp is mounted, by pushing the lamp holding member 4 upward, one end of the lamp holding member 4 comes into contact with the lower piece 12b of the spring 12 and elastically deforms outward along the inclination. The fitting portion 12a is in pressure contact with the mounting piece 10. When the lamp holding member 4 is further pushed up, the fitting portion 12a is fitted into the hole portion 11 and locked.

  Further, when the lamp is removed, by holding the pull-down operation portion 13 of the lamp holding member 4 and pulling it down, the fitting portion 12a is pushed to the outside of the hole portion 11 so that the lock is released and it can be pulled down. . In this embodiment, the same effect as that of the first embodiment can be obtained.

  The lighting fixture of 3rd Embodiment of this invention is demonstrated based on FIG. FIG. 5A is a partially cutaway sectional view of a lighting fixture according to a third embodiment of the present invention, and FIG. 5B is a schematic view seen from below. Note that the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 5, a plate 15 is provided in the vicinity of one end of the main body 1. The lamp holding member 4 has a groove shape in cross section, and the upper end of the attachment piece 16 is fitted and fixed to one end thereof. A locking portion 17 is provided on the mounting piece 16, and a locked portion 18 is provided on the plate 15.

  The locking portion 17 protrudes outward in the longitudinal direction of the lamp holding member 4 and is engaged with the locked portion 18 and is exposed to the lower side of the lamp holding member 4 to release the locking of the claw 17a. The operation unit 17b is made possible. In this case, the locking portion 17 is rotatably attached to the upper surface of a horizontal piece 16a obtained by bending the lower portion of the attachment piece 16 substantially horizontally. An operating portion 17b integrally fixed to the rotating shaft of the claw 17a of the locking portion 17 is exposed below a hole provided in the horizontal piece 16a so that it can be rotated by a tool or the like. The locked portion 18 is fixed to the support piece 18a so that the lower portion of the plate 15 is bent so as to be substantially flush with the horizontal piece 16a and the claw 17a can be supported, and the upper side of the claw 17a is pressed. And presser piece 18b.

  Next, the lamp replacement operation of the lighting fixture will be described.

  As shown in FIG. 5, when the lamp is mounted, the lamp holding member 4 is lifted upward, and the operation part 17b is rotated 90 ° with a tool while the horizontal piece 16a and the support piece 18a are substantially flush with each other, so that the claw 17a It protrudes and is locked to the support piece 18 a of the locked portion 18. The claw 17a is restricted from moving upward by the presser piece 18b.

  When removing the lamp, reverse the procedure. That is, when the operation portion 17b is rotated reversely by 90 °, the claw 17a is accommodated in the inside and released from being locked, and the lamp holding member 4 is lowered by its own weight and the lamp can be replaced. In this embodiment, the same effect as that of the first embodiment can be obtained.

  The lighting fixture of 4th Embodiment of this invention is demonstrated based on FIG. FIG. 6A is a partially cutaway sectional view of a lighting fixture according to a fourth embodiment of the present invention, and FIG. 6B is a schematic view seen from below. In addition, the same code | symbol is attached | subjected to the same part as 1st and 3rd embodiment, and description is abbreviate | omitted.

  As shown in FIG. 6, this embodiment differs in the structure of the latching | locking part in 3rd Embodiment. That is, the locking portion 20 protrudes outward in the longitudinal direction of the lamp holding member 4 and is locked to the locked portion 18 and is exposed to the lower side of the lamp holding member 4 to lock the claw 20a. It comprises an operation unit 20b that can be released. In this case, the locking portion 20 is attached to the upper surface of the horizontal piece 16a obtained by bending the lower portion of the attachment piece 16 substantially horizontally so as to be able to advance and retreat. An operation portion 20b fixed integrally with the claw 20a of the locking portion 20 is exposed below the long hole 21 provided in the horizontal piece 16a so that it can be operated with a tool or the like.

  Next, the lamp replacement operation of the lighting fixture will be described.

  As shown in FIG. 6, when the lamp is mounted, the lamp holding member 4 is lifted upward, and the claw 20a protrudes by moving the operating portion 17b in the horizontal direction while the horizontal piece 16a and the support piece 18a are substantially flush with each other. It is locked to the support piece 18 a of the locked portion 18. Further, the upward movement of the claw 20a is restricted by the presser piece 18b.

  Further, when the lamp is removed, the claw 20a is housed inside by moving the operation portion 20b in the reverse direction in the horizontal direction, the locking is released, and the lamp holding member 4 can be lowered by its own weight to replace the lamp. It becomes. In this embodiment, the same effect as that of the first embodiment can be obtained.

  The lighting fixture of 5th Embodiment of this invention is demonstrated based on FIG. FIG. 7 is a partially cutaway sectional view of a lighting fixture according to a fifth embodiment of the present invention.

  As shown in FIG. 7, a fixing member 25 is provided in the vicinity of one end of the main body 1. The lamp holding member 26 is configured to be rotatable as in the first embodiment, but is provided with a locking portion at one end protruding from the socket 27 and a locked portion on the fixing member 25.

  The locking portion includes a hole provided in a horizontal piece at one end of the lamp holding member 26 and a thumbscrew 28 inserted through the hole. It is desirable that the lamp holding member 26 has a groove shape or the like that opens upward so that the operation of the thumbscrew 28 is not hindered. The locked portion is a fixing metal fitting 29 fixed to the fixing member 25. The fixing bracket 29 has a bent piece 29a provided with a screw hole that contacts the horizontal piece at one end of the lamp holding member 26 and is aligned with the hole.

  Next, the lamp replacement operation of the lighting fixture will be described.

  As shown in FIG. 7, when the lamp is mounted, the lamp holding member 26 is lifted upward and the thumbscrew 28 is tightened against the screw hole of the bent piece 29a, whereby the lamp holding member 26 is locked to the main body 1 side. The

  Further, when the lamp is removed, the locking is released by loosening the thumbscrew 28, and the lamp holding member 26 is lowered by its own weight, and the lamp can be replaced. In this embodiment, the same effect as that of the first embodiment can be obtained.

  The lighting fixture of 6th Embodiment of this invention is demonstrated based on FIG. 8 and FIG. FIG. 8 is a partially cutaway sectional view of a lighting fixture according to a sixth embodiment of the present invention, and FIG. 9 is a perspective view of a metal fitting used in the sixth embodiment.

  As shown in FIG. 8, a fixing member 30 is provided in the vicinity of one end of the main body 1. The lamp holding member 31 is configured to be rotatable as in the first embodiment, and a mounting bracket 32 is attached to a portion where an upper piece of one end thereof is bent by a fixing tool or the like. As shown in FIG. 9, the mounting bracket 32 has a vertical piece 32a that abuts on one end of the lamp holding member 31, and a horizontal piece 32b that is bent at the lower end of the vertical piece 32a. A hole 32c is provided in the horizontal piece 32b. In addition, side pieces 32d that face both side edges of the vertical piece 32a are provided, and protruding pieces 32e that face inwardly from the side pieces 32d protrude. The mounting bracket 32 is provided with a locking portion 33, and the fixing member 30 is provided with a locked portion 34.

  The locking portion 33 is a metal fitting having a rotating structure. Specifically, a vertical piece 33a that fits between the side pieces 32d and 32d of the mounting fitting 32 and a horizontal piece 33b that is bent at the lower end of the vertical piece 33a. Have. Further, side pieces 33d facing both side edges of the vertical piece 33a are provided, and a hole 33f into which the protruding piece 32e is inserted and a claw 33g are protruded at the upper part of each side piece 33d. The hole 32f is rotatable with respect to the projecting piece 32e, whereby the locking portion 33 is rotated about the hole 33f. In addition, a spring 35 is attached between the vertical piece 33 a of the locking portion 33 and the vertical piece 33 a of the mounting bracket 32 to maintain the posture of the locking portion 33. The locked portion 34 is an L-shaped fitting attached to the fixing member 30 with a fixing tool or the like, and a rectangular hole 34b is provided in the hanging piece 34a. Then, the claw 33 g of the locking portion 33 protrudes outward in the longitudinal direction of the lamp holding member 31 and is locked in the hole 34 b of the locked portion 34. Further, the horizontal piece 33b of the locking portion 33 becomes an operation portion exposed to the lower side of the lamp holding member 31 from the hole 32c of the mounting bracket 34, and the claw 33g can be operated by pushing this with a tool or the like, and from the hole 34b. It is a configuration that comes off.

  Next, the lamp replacement operation of the lighting fixture will be described.

  As shown in FIG. 8, when the lamp is mounted, the lamp holding member 31 is lifted upward, and the claw 33g of the locking portion 33 is locked by being fitted into the hole 34b. When the lamp is removed, it is rotated by pushing the locking portion 33 with a tool from the hole 34b as described above, the claw 33g is removed from the hole 34b of the locked portion 34 on the main body 1 side, and the lamp holding member 31 is moved. It is possible to replace the lamp by descending under its own weight. In this embodiment, the same effect as that of the first embodiment can be obtained.

  The lighting fixture of 7th Embodiment of this invention is demonstrated based on FIG. FIG. 10 is a partially broken explanatory view of the luminaire of the seventh embodiment of the present invention. Note that the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 10, a fixing bracket 40 is attached in the vicinity of one end of the main body 1. The lamp holding member 41 is configured to be rotatable as in the first embodiment, and an attachment piece 42 is attached to a portion where an upper piece of one end thereof is bent by a fixing tool or the like.

  The attachment piece 42 has a pull-down operation portion 42a that is bent at the lower end. That is, the pull-down operation unit 42 a protrudes outward in the longitudinal direction of the lamp holding member 41 at the lower end of the end surface of one end of the lamp holding member 41. Then, a locking portion 43 is provided on the mounting piece 42, and a locked portion 44 is provided on the fixing bracket 40.

  The locking portion 43 is a spring disposed above the pull-down operation portion 42a, and has a lower portion fixed to the attachment piece 42 and an elastically deformable engaging portion 43a on the upper portion that is not fixed. The locked portion 44 is an L-shaped bracket composed of a vertical piece 44a held by the fixing bracket 40 on the main body 1 side so as to be movable in the vertical direction, and a horizontal piece 44b disposed substantially on the same surface as the pull-down operation portion 42a. It is. The vertical piece 44a has a square hole 44c that is engaged with the engaging portion 43a. In this case, since the portion of the vertical piece 44a of the locked portion 44 screwed to the fixed piece 40a of the fixing bracket 40 is a long hole, the locked portion 44 moves within the range of the long hole. . Further, a hole 40b communicating with the hole 44c of the locked portion 44 is provided in the fixed piece 40a in the locked state, and the engaging portion 43a is also locked to this hole 40b. Then, by pushing the horizontal piece 44b, the engagement between the engaging portion 43a and the hole portion 44c is released, and the upper surface of the pull-down operation portion 42a is exposed.

  Next, the lamp replacement operation of the lighting fixture will be described.

  As shown in FIG. 10A, when the lamp is mounted, the lamp holding member 41 is lifted upward, and the engaging portion 43a of the locking portion 43 is fitted into the hole portion 44c and the hole portion 40b of the locked portion 44. It is locked by doing. Further, when the lamp is removed, as shown in FIG. 10 (b), by pushing up the horizontal piece 44b of the locked portion 44 upward, the engaging portion 43a of the locking portion 43 is detached from the hole portion 44c. The pull-down operation unit 42a is exposed. In this state, the engaging portion 43 a of the locking portion 43 is in pressure contact with the vertical piece 44 a of the locked portion 44. Then, as shown in FIG. 9C, by pulling down the exposed pull-down operation portion 42a, the lamp holding member 41 can be lowered and the lamp can be replaced.

  According to the present embodiment, when the horizontal piece 44b of the L-shaped bracket is pushed in, the spring engaging portion 43a is released from the hole portion 44c, but is pressed against the vertical piece 44a by the elasticity of the spring, and the lamp holding member 41 is temporarily attached. Retained. In this state, the exposed pull-down operation portion 42a is pulled down, so that it can be pulled down in two stages, and the risk of the lamp holding member 41 falling is reduced and safety is improved. Further, when the lamp is attached, the pull-down operation part 42a and the horizontal piece 44b of the L-shaped bracket are disposed substantially flush with each other, so that the upper surface of the pull-down operation part 42a is not exposed and the appearance quality is good. In addition, the same effects as those of the first embodiment can be obtained.

  The lighting fixture of 8th Embodiment of this invention is demonstrated based on FIG. 11 and FIG. FIG. 11A is a cross-sectional view of the lighting fixture according to the eighth embodiment of the present invention in a partially broken state, FIG. 11B is a cross-sectional view of the detachment state, and FIG. 12 is a main part of the eighth embodiment. It is a perspective view. Note that the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIGS. 11 and 12, a fixing bracket 45 is provided in the vicinity of one end of the main body 1. The fixing bracket 45 is an L-shaped member having a lower end bent inward. The lamp holding member 4 has an upper end of an attachment piece 46 fixed to one end thereof. The mounting piece 46 is disposed to face the fixing member 45 of the main body 1 and is bent so that the lower end of the mounting piece 46 is folded and further bent inward so that the tip is outwardly formed to form an operation portion 46a. is doing. Further, a hooking portion 48 is projected from the inner surface of the main body 1 located between the upper portion of the lamp holding member 4 and the fixing bracket 45. A locking portion is disposed outside the mounting piece 46, and the locked portion is provided on the fixing bracket 45.

  The locking portion is a temporary hanging string 49 having a plurality of knots 49a. The temporary hanging strap 49 is fixed to the lamp holding member 4 in the vicinity of the mounting piece 46 and is hung over the hook portion 48. The locked portion is a saddle hole 50 that can lock the knot 49 of the temporary hanging strap 49. The daruma hole 50 is formed in the horizontal piece 45a of the fixing bracket 45 and has a shape in which a large meridian hole through which the knot 49 can be inserted and a small meridian hole in which the knot 49 is locked are provided continuously.

  Next, the lamp replacement operation of the lighting fixture will be described.

  As shown in FIG. 11A, when the lamp is mounted, the lamp holding member 4 is lifted upward, the temporary suspension string 49 is pulled so that the lamp holding member 4 is substantially horizontal, and the knot 49a and the bobhole hole 50 are locked. Let When removing the lamp, as shown in FIG. 11 (b), the temporary suspension string 49 is slid to the larger side of the dart hole 50 to release the lock, and another knot 49a on the lower side is released. By locking the saddle hole 50, the lamp holding member 4 descends by its own weight, and the lamp can be replaced. In addition, the lowermost knot 49a of the temporary hanging strap 49 is set to be larger than the warp hole 50 having a larger diameter, so that the fall can be prevented.

  According to this embodiment, since the plurality of knots 49a are provided on the temporary hanging strap 49, the lamp can be pulled down and temporarily held in multiple stages. In addition, the lamp can be replaced in the temporarily held state, and the maintenance is good. In addition, the same effects as those of the first embodiment can be obtained.

It is a principal part perspective view of the lighting fixture of the 1st Embodiment of this invention. It is operation | movement explanatory drawing of 1st Embodiment. (A) is a perspective view of the lamp attachment state of a lighting fixture, (b) is a perspective view at the time of the lamp replacement | exchange. (A) is a principal part perspective view of the lighting fixture of the 2nd Embodiment of this invention, (b) is a partially broken side view. (A) is the partially broken sectional view of the lighting fixture of the 3rd Embodiment of this invention, (b) is the schematic seen from the bottom. (A) is the partially broken sectional view of the lighting fixture of the 4th Embodiment of this invention, (b) is the schematic seen from the bottom. It is a partially broken sectional view of the lighting fixture of the 5th Embodiment of this invention. It is a partially broken sectional view of the lighting fixture of the 6th Embodiment of this invention. It is a perspective view of the metal fitting used for a 6th embodiment. It is the attachment explanatory drawing which fractured | ruptured the lighting fixture of the 7th Embodiment of this invention partially. (A) is sectional drawing of the attachment state which the lighting fixture of the 8th Embodiment of this invention fractured | ruptured partially, (b) is sectional drawing of the removal state. It is a principal part perspective view of 8th Embodiment. (A) is a disassembled perspective view of the lighting fixture of a prior art example, (b) is sectional drawing.

Explanation of symbols

1 Main body 2 Reflecting plate 3 Lamp 4 Lamp holding part 7 Spring (locking part)
8 ribs (locked parts)
11 Hole portion 12 Spring 17, 20 Locking portion 17a, 20a Claw 17b, 20b Operation portion 18 Locked portion 28 Thumb screw 29 Fixing bracket 33 Locking portion 33g Claw 33b Horizontal piece 34 Locked portion 42 Mounting piece 42a Pulling down Operation part 43 Locking part 43a Engaging part 44 Locked part 44b Horizontal piece 44c Hole part 49 Temporary hanging strap 50 Daruma hole

Claims (4)

  A box-shaped main body having an opening on the lower side, and a lamp holding member that is housed together with the lamp inside the opening of the main body and can hold the lamp in a connected state, and one end side in the longitudinal direction of the lamp holding member is The other end is rotatably attached to the main body so as to be taken out from the inside of the main body, and a locking portion is provided on the end surface side of one end of the lamp holding member, and the locking portion can be freely detached. A lighting apparatus, wherein a locked portion to be locked is provided on the main body side.   The lighting fixture according to claim 1, wherein a pull-down operation portion is formed to protrude from one end of the lamp holding member.   The locking portion protrudes outward in the longitudinal direction of the lamp holding member and is locked to the locked portion, and is exposed to the lower side of the lamp holding member and can be unlocked. The lighting apparatus according to claim 1, further comprising an operating unit.   The pull-down operation part protrudes outward in the longitudinal direction of the lamp holding member at the lower end of one end face of the lamp holding member, and the locking part is disposed above the pull-down operation part and is an elastically deformable engaging part. The locked portion has a hole portion that the engaging portion locks, and is arranged on substantially the same plane as the vertical piece that is held on the main body side so as to be movable in the vertical direction and the pull-down operation portion. An L-shaped bracket made of a horizontal piece, wherein the engagement between the engagement portion and the hole is released by pushing the horizontal piece, and the upper surface of the pull-down operation portion is exposed. 2. The lighting apparatus according to 2.

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