JPH09219111A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out the connecting and disconnecting work of a luminaire main body, to prevent the loss of parts, and to realize a small size, by installing a main body support to a luminaire main body, and installing the main body supporter to an installing base by rotating. SOLUTION: This luminaire has a luminaire main body 1 and an installing base 12. The installing base 12 has a hook claw 24 to hook to a hook 42 at a ceiling 15, a feeder device 41 connected to the hook claw 24, and a rotary engaging part 22 at the lower surface. The hook hole 40 of the hook 42 is formed at the lower surface, and the hook claw 24 is locked electrically and mechanically to the hook hole 40. The luminaire main body 1 has a main body supporter 2 furnishing a rotary locking part 19 to lock to the rotary engaging part 22 by rotating, and a connection 20 to connect the feeder device 41. As the installing method of this luminaire, the installing base 12 is fixed by hooking the hook hole 24 to the hook 42. And a connector 26 is connected to the connection 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture.

[0002]

2. Description of the Related Art A first conventional example (for example, JP-A-6-251611).
Japanese Patent Laid-Open Publication No. 2003-163242) inserts a support body into a round hole of an instrument body, and attaches a tool body to the hook ceiling by locking a flange portion of the support body to a hook metal fitting of the hook ceiling. In the second conventional example (for example, Japanese Utility Model Laid-Open No. 6-58514), a hooking sealing cap having hooks for hooking to the hooking ceiling is provided with a current-carrying metal fitting, and a current-carrying male fitting for contacting the current-carrying metal fitting is provided for hooking the ceiling. The sealing receiving member that fits in the cap is attached to the instrument body.

[0003]

In the first conventional example, when the lighting fixture is mounted on the ceiling, it is necessary to move while holding the support body and the fixture main body, and when performing the mounting work at a high place with one hand. It was difficult to hold both, and holding them in both hands was unstable and dangerous. In addition, it is necessary to perform work such as positioning for inserting the support into the round hole of the instrument body, which is dangerous in high-place work. Furthermore, since the instrument body and the support are separate parts,
There was a risk of loss during removal and installation due to cleaning of the equipment.

In the second conventional example, the sealing receiving member is attached to the main body of the device, but the structure is complicated and the shape is large because the power receiving male fitting is incorporated, and the size of the device becomes large. Therefore, the object of the present invention is to safely and easily attach / detach the instrument body without loss of parts,
Moreover, it is to provide a lighting device that can be downsized.

[0005]

According to a first aspect of the present invention, there is provided a lighting apparatus having a hooking claw for hooking to a ceiling ceiling ceiling, a power feeding device connected to the hooking claw, and a rotary engaging portion on a lower surface. It is provided with a base body and an instrument main body having a main body support body provided with a rotation locking portion for locking the rotation engagement portion by rotation and having a connecting portion for connecting the power feeding device.

According to the lighting equipment of the first aspect, since the main body support is attached to the equipment main body, it is sufficient to carry out the installation work with the equipment main body at the time of ceiling installation, so that the work can be done with one hand,
Attachment and detachment work of the instrument body becomes safe and easy. Further, since one-handed mounting is possible, the construction work is reduced, and since the main body support is fixed to the instrument main body, there is no fear of losing the main body support. Further, since the main body support is attached to the attachment base by rotation, the main body support and the attachment base can be made compact, so that the instrument main body can be miniaturized.

According to a second aspect of the present invention, in the luminaire according to the first aspect, the main body support is rotatably attached to the main body of the luminaire. According to the lighting fixture of claim 2, in addition to the effect of claim 1, the fixture main body can be fixed to the mounting base by rotating the main body support while being fixed to the ceiling, without damaging the ceiling surface. Further, as compared with the case where the instrument main body is rotated and the main body support is attached to the attachment base body, an excessive force is not applied to the attachment base body and there is no fear of damage.

According to a third aspect of the present invention, in the lighting fixture according to the second aspect, the fixture main body has an elliptical mounting hole, and the main body support member can be fitted into the mounting hole, and the mounting hole has a short length. An elliptic cylinder-shaped fitting portion having a longer axis longer than the axis is provided, and an engaging groove slidably engaged with an edge portion of the mounting hole in the short axis direction is formed in the long axis direction of the main body support. It is formed in the circumferential direction of the circumferential surface of.

According to the lighting device of the third aspect, in addition to the effect of the second aspect, since the mounting hole has an elliptical shape and the main body supporting body has an elliptic cylinder-shaped fitting portion, the main body supporting body is 90 degrees or more. It is possible to rotate the main body support while engaging with the mounting hole within the range. Therefore, when a square lighting fixture is installed in a room, it can be adjusted by further rotating the fixture body after mounting the lighting fixture on the ceiling so that the corner of the lighting fixture and the corner of the room almost match. Positioning of lighting equipment is possible. Also, the main body support can be rotated and fixed to the instrument main body for easy assembly, and since the fitting part of the main body support is oval, it is easy for the hand to slip when rotating, and no fixing parts are required. Assembly is also easy.

According to a fourth aspect of the present invention, there is provided a lighting fixture according to the second aspect, wherein the fixture main body has a square mounting hole, and the main body support has a prismatic fitting portion that can be fitted into the mounting hole. Then
Engaging grooves that slidably engage the sides of the mounting hole are formed in the circumferential direction of the corners of the fitting portion. According to the lighting device of the fourth aspect, in addition to the effect of the second aspect, the main body support can be rotated while being engaged with the mounting hole. Therefore, when a square lighting fixture is installed in a room, it can be adjusted by further rotating the fixture body after mounting the lighting fixture on the ceiling so that the corner of the lighting fixture and the corner of the room almost match. Positioning of lighting equipment is possible. In addition, the main body support can be rotated and fixed to the instrument main body for easy assembly, and since the fitting part of the main body support is square, the hand is not slippery during rotation operation and it is easy to operate, and no fixing parts are required for assembly. Is also easy.

According to a fifth aspect of the present invention, there is provided a lighting fixture according to any one of the first, second, third and fourth aspects, wherein the fixture body has a globe which is detachable by rotation, and the body support is the globe. Is provided in the instrument body at a position eccentric with respect to the rotation center. According to the lighting fixture of claim 5, claim 1, claim 2, claim 3
In addition to the effect of claim 4, compared to the case where the main body support portion is located at the center of rotation of the globe, when the globe is rotated and attached / detached for lamp replacement or maintenance, the instrument body tends to rotate due to the rotation of the globe. The rotation force of the glove applied to the main body support is reduced, and therefore the packing having a large friction coefficient is provided between the instrument body and the instrument body, for example, the ceiling, to prevent the instrument body from rotating. The cost can be reduced without the need for such members, and there is no restriction on the appearance.

According to a sixth aspect of the present invention, in the lighting apparatus according to the first aspect, the rotary engaging portion has a tubular shape, and the rotary engaging portion has a hole into which the rotary engaging portion is fitted. The power feeding device has a lead wire and a connector provided at the tip thereof, and the lead wire is pulled out through the rotary engagement portion and passed through the hole portion. According to the lighting equipment of claim 6, in addition to the effect of claim 1, a relatively small connector and lead wire are pulled out from the rotary engagement portion and passed through the hole,
By also functioning as a guide for the rotation engaging part and the rotation locking part,
Even if the hole is small, the mounting operation can be easily performed, and the size of the component, that is, the device can be reduced by making the hole small.

According to a seventh aspect of the present invention, in the lighting apparatus according to the first aspect, the main body support is a substantially cylindrical shape that is externally fitted to the rotary engagement portion of the mounting base, and the tip of the mounting base is the main body support. Located inward, the power supply device has a lead wire drawn from the tip of the mounting base to the outside of the main body support, and a connector connected to the tip of the lead wire.

According to the lighting device of the seventh aspect, in addition to the effect of the first aspect, it is possible to reduce the protrusion of the lead wire from the main body supporting member, so that the lead wire is less likely to appear as a shadow on the glove or the like. Can be made thinner. The lighting device according to claim 8 is the lighting device according to claim 1, wherein the rotary engaging portion and the rotary engaging portion are screwed together, and one thread of the rotary engaging portion connects the rotary engaging portion to the rotary engaging portion. When it is inserted in the axial direction, it can be retracted in the radial direction.

According to the lighting apparatus of the eighth aspect, in addition to the effect of the first aspect, the rotation locking portion of the main body support is axially inserted and rotated to be inserted into the rotation engagement portion of the mounting base. Therefore, the mounting operation time is shortened and the mounting operability is improved. The lighting fixture according to claim 9 is the structure according to claim 2, wherein one of the rotary engaging portion and the rotary engaging portion is fitted in a concavo-convex shape, and a pin is projected on one side surface of the convex side and the concave side, On the other hand, a groove having a substantially 7-shaped shape is formed, and the rotary engaging portion is inserted into the rotary engaging portion and engaged by rotation.

According to the lighting equipment of the ninth aspect, the same effects as the second and eighth aspects can be obtained.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described with reference to FIGS. That is, this lighting fixture includes the fixture body 1 and the mounting base 12. The mounting base 12 has a hooking claw 24 that hooks on a hooking ceiling (sealing rosette) 42 of the ceiling 15, a power supply device 41 connected to the hooking claw 24, and a rotary engaging portion 22.
On the lower surface. The hooking hole 40 of the hooking ceiling 20 is formed on the lower surface, and the hooking claw 24 is electrically and mechanically locked in the hooking hole 40. In the embodiment, the mounting base 1
2 is formed in a rectangular parallelepiped shape so that it can be easily gripped when the hooking claw 24 is inserted into the hooking hole 40 and rotated. The rotary engaging portion 22 includes a cylindrical insertion portion 12a that hangs from the lower surface of the mounting base 12, and a locking projection 22 that is provided on both side surfaces of the tip thereof.
It is formed by a. The power feeding device 41 is connected to the hooking claw 24 and leads 25 drawn out through the insertion portion 12a.
And a connector 26 connected to the tip of the lead wire 25.

The instrument main body 1 has a main body support body 2 provided with a rotation locking portion 19 which is rotated and locked by the rotation engaging portion 22,
It has the connection part 20 which connects the electric power feeding apparatus 41. The fixture body 1 according to the embodiment is provided with a spacer 16 interposed between the ceiling 15 and the ceiling 15 on the upper surface, a lamp socket 17, a lamp support spring 18, and a globe fixing portion 43 on the lower surface, and a globe using a metal fitting of the globe 21. Glove 2 with stopper 44
It is fixed to the glove fixing part 43 by rotating 1 horizontally. Further, a lamp 23 using a ring-shaped fluorescent lamp is mounted on the lamp socket 17 and the lamp support spring 18. A lighting device (not shown) connected to the connecting portion 20 is built in and supplies power to the lamp socket 17.

Further, the main body support 2 of the embodiment has a hollow and substantially cylindrical shape, and the flange portion 2a is attached to the instrument main body 1 by the screw 45. Further, the rotation locking portion 19 of the main body supporting body 2 is a hollow hole portion 2b of the main body supporting body 2 and an axial vertical groove and a horizontal groove portion 19a on the inner peripheral surface thereof as indicated by broken lines in FIG. It is formed by a plurality of grooves 19 'formed in a V shape, the main body support body 2 is externally fitted to the insertion portion 12a of the mounting base 12, and the rotation engagement portion 22 is slidably inserted into the rotation locking portion 19. Then, it is rotated and locked by the lateral groove portion 19a of the rotation locking portion 19.

In this method of mounting the luminaire, the hooking claw 24 of the mounting base 12 is hooked and fixed to the hooking ceiling 42. The lead wire 25 of the connector 26 is passed through the hole 2b of the main body support 2 fixed to the instrument main body 1, and the insertion portion 1 of the insertion portion 12a is slid on the rotation engagement portion 19 so that the rotation engagement portion 22 slides.
2a is inserted into the main body support 2, and the main body support 2 of the instrument main body 1 is rotated and locked so that the rotary engaging portion 22 moves in the lateral groove portion 19a of the rotary locking portion 19. The connector 26 is connected to the connecting portion 20. This completes the ceiling mounting of the instrument main body 1, but on the other hand, when removing the instrument main body 1, the reverse operation to the above is performed.

According to this embodiment, since the main body support 2 is attached to the instrument main body 1, it is sufficient to carry out the attaching work with the instrument main body 1 at the time of ceiling mounting, so that the work can be performed with one hand, and the attaching / detaching work of the instrument main body 1 can be performed. Be safe and easy. Further, since one-handed mounting is possible, the construction work is reduced, and since the main body support body 2 is fixed to the instrument main body 1, there is no fear that the main body support body 2 will be lost. Further, since the main body support 2 is attached to the attachment base 12 by rotation, the main body support 2 and the attachment base 12 are attached.
Since it can be made compact, the instrument body 1 can be made compact.

Further, the rotary engaging portion 22 has a cylindrical shape, the rotary engaging portion 19 has a hole 2b into which the rotary engaging portion 22 is fitted, and the power feeding device 41 is provided at the lead wire 25 and its tip. Since the lead wire 25 is pulled out through the rotary engagement portion 22 and passed through the hole 2b, the connector 26 and the lead wire 25 which are relatively small are connected to each other.
By pulling out from 2 and passing through the hole 2b and also serving as a guide for the rotary engaging portion 22 and the rotary locking portion 19, even if the hole 2b is small, the mounting operation can be easily performed and the hole 2b
It is possible to realize the miniaturization of the parts, that is, the miniaturization of the instrument by reducing the value of. In this respect, in the conventional example, the through hole of the holder provided in the instrument body is large, and the presence or absence of the guide protruding from the adapter during the fitting with the adapter does not greatly affect the mounting workability. On the other hand, when the lighting fixture of the simple attachment type as in this embodiment is miniaturized, by making the electrical connection and the lead wire 25 project, the mounting operability of the fixture can be improved. is there.

A second embodiment of the present invention is shown in FIGS. 4 and 5. That is, in this lighting fixture, the main body support body 2 is rotatably attached to the fixture main body 1 in the first embodiment. In the second embodiment, the attachment hole 3 of the instrument body 1 is formed in a substantially semi-elliptical shape, and the oval peripheral edge is bent downward to form a substantially L-shaped, substantially U-shaped engagement rib 4. The screw holes 9 are formed at both ends thereof.
The main body support body 2 has a peripheral groove 5 slidably engaged with the inner edge of the engaging rib 4 at the upper end thereof, and the peripheral groove 5 is engaged with the opening portion of the engaging rib 4 by sliding sideways. doing. Holes 7 are formed at both ends of the plate-like removal prevention tool 6 formed of metal fittings.
Through the fixing screw 8 into the screw hole 9
Is attached to the open portion and the main body support 2 is prevented from coming off. The disengagement prevention tool 6 may be engaged with the circumferential groove 5 or may be in sliding contact with the outer peripheral surface of the main body support 2.

According to this embodiment, the main body support 2 is prevented from coming off the engagement rib 4 by the removal preventing tool 6, and is supported by the engagement rib 4 so as to be rotatable. Therefore, the fixture main body 1 can be fixed to the mounting base 12 by rotating the main body support 2 while fixing the fixture main body 1 to the ceiling 15, without damaging the surface of the ceiling surface 15, and by rotating the fixture main body 1 to the main body. Compared with the case where the support body 2 is mounted on the mounting base 12, an excessive force is not applied to the mounting base 12 and there is no risk of damage or the like. Others are the same as in the first embodiment.

A third embodiment of the present invention is shown in FIGS. 6 and 7. That is, in this luminaire, in the first embodiment, the luminaire body 1 has an elliptical mounting hole 3,
The main body support body 2 has an elliptic cylindrical fitting portion 2a which can be fitted into the mounting hole 3 and has a long axis longer than the short axis of the mounting hole 3, and the edge of the mounting hole 3 in the short axis direction. An engagement groove 30 slidably engaged with the portion is formed in the circumferential direction of the circumferential surface of the main body support 2 in the long axis direction. In the embodiment, the convex portion 32 is formed at the center of the instrument body 1, and the mounting hole 3 is formed at the center of the convex portion 32. The main body support 2 is formed in the shape of a hollow elliptic cylinder as a whole, and the upper end portion thereof serves as a fitting portion 2a. The hollow portion of the main body support 2 has a circular cross section as in the first embodiment, and the rotation locking portion 19 is formed on the inner surface thereof.

According to this embodiment, since the mounting hole 3 has an elliptical shape and the main body supporting body 2 has the fitting portion 2a having an elliptic cylindrical shape, the main body supporting body 2 has the mounting hole 3 in the range L of 90 degrees or more. The main body support 2 can be rotated while being engaged with. For this reason, when a prismatic lighting fixture is installed in a room, the lighting fixture main body 1 can be further rotated after mounting the lighting fixture on the ceiling 15 so that the corners of the lighting fixture and the corners of the room substantially match, and adjustment can be performed. Positioning of square lighting fixtures is possible. Further, since the main body support 2 can be rotated and fixed to the instrument main body 1, it is easy to assemble, and since the main body support 2 has an elliptical shape, it is easy for the hand to slip when rotating and is easy to operate. Is also easy. Others are the same as in the first embodiment. The ellipse includes an ellipse, and the elliptic cylinder includes an elliptic cylinder.

A fourth embodiment of the present invention is shown in FIGS. 8 and 9. That is, in this lighting fixture, in the first embodiment, the fixture main body 1 has the square mounting hole 3, and the main body support body 2 is a prismatic fitting portion 2 a that can be fitted into the mounting hole 3.
And the engaging groove 19 slidably engaged with the side portion 3a of the mounting hole 3 is formed in the circumferential direction of the corner portion of the fitting portion 2a. In the embodiment, the mounting hole 3 has a triangular shape, and the main body support 2
Has a triangular prism shape, and its upper end portion is a fitting portion 2a. In addition, the convex portion 32 is formed at the center of the instrument body 1, and the convex portion 3
A mounting hole 3 is formed at the center of 2. The main body support 2
The hollow part has a circular cross section as in the case of the first embodiment, and the rotation locking part 19 is formed on the inner surface thereof.

According to this embodiment, the main body support 2 can rotate while being engaged with the mounting hole 3. Particularly, since the mounting hole 3 has a triangular shape and the main body support 2 has the triangular prism-shaped fitting portion 2a, the main body support 2
The rotation range L ₁ can be 90 degrees or more. For this reason, when a prismatic lighting fixture is installed in a room, the lighting fixture main body 1 can be further rotated after mounting the lighting fixture on the ceiling 15 so that the corners of the lighting fixture and the corners of the room substantially match, and adjustment can be performed. Positioning of square lighting fixtures is possible. Further, since the main body support 2 can be rotated and fixed to the instrument main body 1, it is easy to assemble, and since the main body support 2 has a rectangular shape, it is easy for the hand to slip when rotating and is easy to operate. It's easy.

A fifth embodiment of the present invention is shown in FIGS. That is, this lighting fixture is the same as that of the fixture main body 1 in the first to fourth embodiments.
Has a glove 21 which can be freely attached and detached by rotation, and the main body support 2 has a glove 21 which coincides with the center of the instrument main body 1.
At the position P ₂ which is eccentric to the rotation center P ₁ of the instrument body 1
It is provided in. In the embodiment, the main body support body 2 is arranged between the lamp socket 17 and the lamp support spring 18 in a biased manner toward the lamp support spring 18. The main body support 2 is rotatably attached to the instrument main body 1, and specifically, the second embodiment to the fourth embodiment are applied, but like the first embodiment. It may be fixedly attached. Reference numeral 29 is a lighting device.

According to this embodiment, as compared with the case where the main body support 2 is at the center of rotation of the globe 21, when the globe 21 is rotated and detached for lamp replacement or maintenance,
Rotation of the glove 21 reduces the rotational force that the device body 1 tends to rotate, and the glove 21 added to the body support 2
Since the rotational force of the device is reduced, a member such as a packing having a large friction coefficient is not particularly required between the device body 1 and the ceiling 15 to prevent the device body 1 from rotating, and the cost can be reduced and the appearance can be improved. The constraint of is also gone.

Others are the same as those in the first to fourth embodiments. A sixth embodiment of the present invention is shown in FIGS. That is, in this luminaire, in the first embodiment, the main body support 2 has a substantially cylindrical shape that is externally fitted to the rotary engaging portion 22 of the mounting base 12, and the tip of the mounting base 12 is the main support 2. Located inside, the lead wire 25 of the power feeding device 41 is pulled out from the tip of the mounting base 12 to the outside of the main body support 2 through the hole 2b, and the connector 26 is connected to the tip. The lead wire 25 extending from the tip of the mounting base 12 is bent into a substantially U-shape at the tip of the main body support 2, and the connector 26 is connected to the connecting portion 20. In this case, as shown in FIG. 14, when the lead wire 25 is bent with the minimum allowable radius of curvature R, the lead wire 25 has a diameter D of the inner diameter of the main body support 2, and the height direction of the mounting base 12 and the main body support 2 in the height direction. When the difference is H, the dimensions of the mounting base 12 and the main body support 2 are set so that the relationships of D / 2> R and H> R are maintained.

According to this embodiment, the amount of the lead wire 25 extending from the main body support 2 can be reduced, so that the lead wire 25 is less likely to appear as a shadow on the globe 21 or the like, and the device can be made thin. In this respect, for example, when the tip of the insertion portion 12a of the mounting body 12 is the same as the lower surface of the main body supporting body 2 or protrudes from the main body supporting body 2, the lead wire 25 easily hangs downward, and the shadow of the lead wire 25 is In order to avoid being reflected on the glove 21, the height of the instrument body 1 was likely to be large. On the other hand, in the lighting equipment which is the simple construction method of this embodiment and is connected to the power source by the connector 26 via the lead wire 25, the margin of the lead wire 25 is minimized to reduce the height of the equipment. be able to.

Others are the same as those in the first to fifth embodiments. A seventh embodiment of the present invention is shown in FIGS. That is, in this lighting device, in the first embodiment, the rotary engaging portion 22 and the rotary locking portion 19 are configured by screws, and the screw thread 50 of the rotary locking portion 19 rotates the rotary locking portion 19. When it is inserted into the engaging portion 22 in the axial direction, it can be retracted in the radial direction. In the embodiment, the rotary engaging portion 22 is a male screw and the rotary engaging portion 19 is a speed nut having a female screw. The rotation locking portion 19 of the main body support 2 has a hole 2b, a plurality of grooves 52 formed in the inner peripheral surface of the hole 2b in the radial direction, and a screw thread 50 retractably housed in these grooves 52, And a spring 51 for urging the screw thread 50 to project into the hole 2b.
The maximum protrusion amount of the screw thread is regulated by a stopper (not shown). The tip of the screw thread 50 has an inclined surface 50a that faces in one axial direction.

When the rotary engaging portion 19 is axially externally inserted into the rotary engaging portion 22 and pushed up, the inclined surface 50a of the thread 50 is formed.
Hits the thread of the male screw of the rotary engaging portion 22, and the inclined surface 5
The thread 50 retracts so that 0a slides to compress the spring 51. Therefore, the rotation locking portion 19 is connected to the rotation engagement portion 22.
It can be inserted axially without rotating. In the direction in which the rotation locking portion 19 is disengaged from the rotation engaging portion 22, the thread 50 does not have an inclined surface so that it remains locked, but it can be disengaged by rotating in the screw returning direction. Further, by rotating the rotation locking portion 19 in the tightening direction after inserting the rotation locking portion 19 into the rotation engagement portion 22, the rotation locking portion 19 can be firmly fixed.

According to this embodiment, since the rotation locking portion 19 of the main body support 2 can be connected to the rotation engaging portion 22 of the mounting base 12 by inserting and rotating in the axial direction, the mounting operation can be performed. The time is shortened and the mounting operability is improved. In addition, in this embodiment, the main body support 2 is separated from the instrument body 1, but may be attached to the instrument body 1 in the state of FIG. Further, the rotary engaging portion 22 may be formed as a female screw and the rotation locking portion 19 may be formed as a male screw. Further, it is sufficient that one of the male screw and the female screw can be retracted.

Others are the same as those in the first to sixth embodiments. The eighth embodiment of the present invention is shown in FIGS. That is, in this luminaire, in the first embodiment, the rotary engaging portion 22 and the rotary engaging portion 19 are fitted in the concave and convex portions, and the rotary engaging portion 22 on the convex side has a pin-shaped side surface. The locking projection 22a is projected and the groove 19 'having a substantially 7 shape is formed in the rotation locking portion 19 on the concave side.
Is formed, and the rotary engaging portion 19 is inserted into the rotary engaging portion 22 and engaged by rotation. In this embodiment,
Similar to the first embodiment, the rotary engaging portion 22 is composed of the insertion portion 12a and the locking projection 22a, and the rotary locking portion 19 is rotated in the mounting hole 3 of the instrument body 1 as shown in FIG. It has a freely engaged groove 57 on the outer peripheral surface, a groove portion 7'having a substantially 7-shape in an inverted posture on the inner peripheral surface of the hole portion 2b, a brim 58 formed at the tip, and an outer end surface. A tubular inner body 56 having a ring-shaped recess 64 formed therein, an outer body 60 for gripping, which has an inner circumferential groove 59 capped on the inner body 56 and rotatably engaged with the collar 58, It is housed in the ring-shaped recess 64 of the body 56 and is interposed between the inner body 56 and the outer body 60 to prevent both ends of the body 56 and the outer body 60 from moving in the rotating direction by the stoppers 62 and 63, respectively. And a torsion coil spring 61.

The instrument body 1 and the outer body 60 are gripped and pushed up against the mounting base 12, and the insertion portion 12a has a hole 2b.
Is inserted, the locking protrusion 22a of the mounting base 12 and the groove 1
9'is fitted. As you push it up further, the locking protrusion 2
The inner body 5 along the groove portion 19 'of the inner body 56 regulated by 2a.
When only 6 starts to rotate in the direction of expanding the coil center of the coil spring of the coil spring 61 and reaches the horizontal portion of the groove portion 19 ′ of the approximately 7 shape, the inner body 56 is returned to the original position by the restoring force of the coil spring 61. Returning, the locking projection 22a is locked to the end of the groove 19 '. During this time, the human operation only needs to be pushed up,
The rotation operation becomes unnecessary.

According to this embodiment, since the rotary engaging portion 19 of the main body support 2 can be coupled to the rotary engaging portion 22 of the mounting base 12 by inserting and rotating in the axial direction, the mounting operation can be performed. The time is shortened and the mounting operability is improved. Others are the same as those in the first to seventh embodiments. In addition, the rotation engaging portion 22 and the rotation locking portion 19 are configured to be fitted into each other by projections and depressions, and the locking projection 22a is projected on one of the side surfaces of the convex side and the concave side, and the groove portion 19 'having a substantially 7 shape is formed on the other side. And the rotary engaging portion 19 is formed with the rotary engaging portion 22.
If it engages by inserting and rotating, it has the same effect as the above.

Further, in the present invention, the main body support 2 is not limited to the above-mentioned embodiments as long as it has a rotatable structure.

[0040]

According to the luminaire of the first aspect, since the main body support is attached to the main body of the luminaire, the work of attaching the main body of the luminaire to the main body of the luminaire can be performed with one hand, and the work of attaching and detaching the main body of the luminaire can be performed. Will be safe and easy. Further, since one-handed mounting is possible, the construction work is reduced, and since the main body support is fixed to the instrument main body, there is no fear of losing the main body support. Further, since the main body support is attached to the attachment base by rotation, the main body support and the attachment base can be made compact, so that the instrument main body can be miniaturized.

According to the lighting fixture of the second aspect, in addition to the effect of the first aspect, the fixture main body can be fixed to the mounting base by rotating the main body support while being fixed to the ceiling, and the ceiling surface may be damaged. In addition, there is no possibility of damage because the mounting base is not subjected to an excessive force as compared with the case where the main body support is mounted on the mounting base by rotating the instrument body. According to the lighting device of claim 3, in addition to the effect of claim 2, since the mounting hole has an elliptical shape and the main body supporting body has an elliptic cylindrical shape, the main body supporting body is engaged with the mounting hole within a range of 90 degrees or more. The main body support can be rotated while being fitted. Therefore, when a square lighting fixture is installed in a room, it can be adjusted by further rotating the fixture body after mounting the lighting fixture on the ceiling so that the corner of the lighting fixture and the corner of the room almost match. Positioning of lighting equipment is possible. In addition, the main body support can be rotated and fixed to the instrument main body for easy assembly, and the main body support has an elliptical shape so that the hand is not slippery during rotation operation and is easy to operate. is there.

According to the lighting equipment of the fourth aspect, in addition to the effect of the second aspect, the main body support can be rotated while being engaged with the mounting hole. Therefore, when a square lighting fixture is installed in a room, it can be adjusted by further rotating the fixture body after mounting the lighting fixture on the ceiling so that the corner of the lighting fixture and the corner of the room almost match. Positioning of lighting equipment is possible. In addition, the main body support can be rotated and fixed to the instrument main body for easy assembly, and since the fitting part of the main body support is square, the hand is not slippery during rotation operation and it is easy to operate, and no fixing parts are required for assembly. Is also easy.

According to the lighting equipment of claim 5, in addition to the effect of claim 1, claim 2, claim 3 or claim 4,
Compared to the case where the main body support is at the center of rotation of the globe, when rotating and removing the globe for lamp replacement or maintenance, the rotational force that the instrument body tends to rotate due to the rotation of the globe is reduced, and the main body support Since the rotational force of the glove applied to the body is reduced, there is no need for a member such as a packing having a large friction coefficient between the instrument body and the ceiling to which the instrument body is attached in order to prevent rotation of the instrument body. Cost can be reduced and there is no restriction on appearance.

According to the lighting equipment of the sixth aspect, in addition to the effect of the first aspect, a relatively small connector and lead wire are pulled out from the rotary engaging portion and passed through the hole, so that the rotary engaging portion and the rotary engaging portion are connected. By also serving as a guide for the stopper, the mounting operation can be easily performed even if the hole is small, and the size of the component, that is, the device can be reduced by making the hole small.

According to the lighting device of the seventh aspect, in addition to the effect of the first aspect, it is possible to reduce the margin of the lead wire from the main body support, so that the lead wire is less likely to appear as a shadow on the glove or the like. Can be made thinner. According to the lighting device of the eighth aspect, in addition to the effect of the first aspect, the rotation locking portion of the main body support can be coupled to the rotation engagement portion of the mounting base by inserting and rotating in the axial direction. Therefore, the installation operation time is shortened and the installation operability is improved.

According to the lighting equipment of the ninth aspect, there are the same effects as those of the second and eighth aspects.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a first embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view before attaching a device body to a mounting base.

FIG. 3 is a partial cross-sectional view showing a state where a main body support is attached to an attachment base.

FIG. 4 is an exploded perspective view of a main part of the second embodiment.

FIG. 5 is a perspective view of an instrument body to which a body support is attached.

FIG. 6 is an exploded perspective view of essential parts of a third embodiment.

FIG. 7 is a front view looking up from below in a state where a main body support is attached.

FIG. 8 is an exploded perspective view of a main part of the fourth embodiment.

FIG. 9 is a front view looking up from below with a main body support attached.

FIG. 10 is an exploded perspective view of a fifth embodiment.

FIG. 11 is a front view showing a state in which a device body is looked up with a glove removed.

FIG. 12 is a sectional view of the same.

FIG. 13 is a schematic cross-sectional view of a sixth embodiment.

FIG. 14 is a sectional view of the relevant part.

FIG. 15 is a perspective view of a seventh embodiment before attachment.

FIG. 16 is a cross-sectional view showing a state before the main body support is attached to the attachment base.

FIG. 17 is a cross-sectional view of an attached state of the instrument body.

FIG. 18 is a perspective view of an eighth embodiment before attachment.

FIG. 19 is a cross-sectional view showing a state before the main body support is attached to the attachment base.

[Explanation of symbols]

 1 Instrument Main Body 2 Main Body Support 2b Hole 3 Mounting Hole 12 Mounting Base 19 Rotation Locking Part 19 'Groove 20 Connection Part 21 Globe 22 Rotational Engagement Part 22a Engagement Protrusion 24 Claw 25 Lead Wire 26 Connector 30 Engagement Groove 41 power supply device 42 hook ceiling 51 spring 52 groove

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuji Kawaji 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. Lighting Co., Ltd.

Claims (9)

[Claims] 1. A mounting base having a hooking claw for hooking to a ceiling ceiling ceiling, a power supply device connected to the hooking claw, and a rotary engaging portion on a lower surface, and the rotary engaging portion being locked by rotation. A lighting fixture having a main body support body provided with a rotation locking portion, and a fixture main body having a connection portion for connecting the power feeding device. 2. The lighting fixture according to claim 1, wherein the main body support is rotatably attached to the main body of the fixture. 3. The instrument body has an elliptical mounting hole,
The main body support has an elliptic cylindrical fitting portion that can be fitted into the mounting hole and has a long axis longer than the short axis of the mounting hole, and the edge portion of the mounting hole in the short axis direction. The lighting fixture according to claim 2, wherein an engagement groove slidably engaged with the main body support is formed in a circumferential direction of a circumferential surface of the main body support in the longitudinal direction. 4. The instrument main body has a square mounting hole, the main body support has a prismatic fitting portion that can be fitted into the mounting hole, and is slidable on a side portion of the mounting hole. The lighting fixture according to claim 2, wherein an engaging groove that engages with is formed in a circumferential direction of a corner portion of the fitting portion. 5. The device body according to claim 1, wherein the device body has a glove that is detachable by rotation, and the body support is provided on the device body at a position eccentric with respect to the center of rotation of the glove. The lighting fixture according to claim 2, claim 3, or claim 4. 6. The rotary engaging portion has a tubular shape, the rotary engaging portion has a hole into which the rotary engaging portion is fitted, and the power feeding device has a lead wire and a connector provided at a tip thereof. Have
The lighting device according to claim 1, wherein the lead wire is pulled out through the rotary engagement portion and passed through the hole portion. 7. The main body support has a substantially cylindrical shape that is externally fitted to the rotary engagement portion of the mounting base, the tip of the mounting base is located inside the main body support, and the power feeding device is the The lighting apparatus according to claim 1, further comprising a lead wire that is drawn from the tip of the mounting base to the outside of the main body support, and a connector that is connected to the tip of the lead wire. 8. The rotary engaging portion and the rotary locking portion are constituted by screws, and one thread of the thread extends radially when the rotary locking portion is axially inserted into the rotary engaging portion. The luminaire according to claim 1, which is retractable. 9. The rotation engaging portion and the rotation locking portion are configured to be fitted into each other by projections and depressions, and a locking projection is projected on one side surface of the convex side and the concave side, and a groove portion having a substantially 7-shape is formed on the other side. The lighting fixture according to claim 2, wherein the lighting fixture is formed and the rotation locking portion is inserted into the rotation engagement portion and engaged by rotation.