JP2001297618A - Direct ceiling surface mounted luminaire fitting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a direct ceiling surface mounted luminaire fitting device capable of maintaining a steady locking state of an adaptor with respect to a beam portion of a sealing with a beam. SOLUTION: A pair of auxiliary locking members 18a, 18b is provided rotatably respectively in top and bottom direction on the opposed position on the rim of a fitting hole 13 of the adaptor 3, in addition to locking members 16a, 16b at right and left, and disposed with a part of the pair of auxiliary locking members protruding to the fitting hole. A locking portion 31 is provided for locking a beam portion 11 fitted into the fitting hole 13, at the end position of a ceiling rosette with a beam 2 with respect to an adaptor base 12 for the pair of the auxiliary locking members 18a, 18b. With the state that an insert 5 of a plug for hooking 6 being inserted into the ceiling rosette 2, a locking portion 37 to lock the locking portions 31a, 31b in the locking state by contacting with a part of the pair of auxiliary locking portions 18a, 18b is provided on the plug for hooking 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fitting hole for fitting a flanged sealing rosette into an adapter base provided on an instrument body, and slides radially in opposite directions on both sides of the fitting hole. The right and left locking members provided freely, and the biasing springs for biasing the locking claws of the left and right locking members attached to and detached from the flange of the sealing rosette with the flange so as to protrude from the inner surface of the fitting hole, respectively. The present invention relates to a lighting fixture mounting device directly mounted on a ceiling, comprising an adapter having a plug and a hooking plug having a plug blade for electrically connecting to a sealing rosette with a collar.

[0002]

2. Description of the Related Art A pair of arc-shaped blade insertion holes are provided around the center of the lower surface of a sealing rosette, and a flange portion for engaging an adapter or the like is provided at the lower end of the peripheral surface of the sealing rosette. A provided sealing rosette with a collar is known.

[0003] When the above-mentioned ceiling rosette with a collar is mounted on the ceiling, the locking with only the locking claws of the right and left locking members provided on the adapter with respect to the collar provided on the ceiling rosette. In the state, the lighting fixture may drop unexpectedly due to vibration, an incompletely locked state, or the like.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a ceiling capable of maintaining a secure engagement state of an adapter with respect to a flange portion of a flanged ceiling and preventing a lighting fixture from accidentally dropping. It is an object of the present invention to provide a lighting fixture mounting apparatus.

[0005]

According to a first aspect of the present invention, there is provided a lighting apparatus for directly mounting a ceiling on a ceiling, wherein a fitting hole for fitting a sealing rosette with a collar to an adapter base provided on a body of the lighting apparatus is provided. The right and left locking members provided on both sides of the hole so as to be slidable in the radial direction so as to face each other, and the locking claws of the right and left locking members detachably attached to the collar portion of the sealing rosette with the collar are fitted. An adapter having an urging spring that urges each of them from the inner surface of the mating hole, and a hooking plug having a plug blade for electrically connecting to the flanged sealing rosette. In order to solve the above-described problem, separately from the left and right locking members, a set of auxiliary locking members is provided at a position facing the periphery of the fitting hole so as to be rotatable in the vertical direction,
A part of the set of auxiliary locking members is disposed so as to protrude into the fitting hole, and the fitting hole is provided on the set of auxiliary locking members at a final mounting position of the flanged sealing rosette with respect to the adapter base. A locking portion for locking a collar portion of the flanged sealing rosette fitted to the pair of auxiliary rosettes, with the plug blade of the hooking plug inserted into the flanged sealing rosette. A lock portion is provided on the hook plug for abutting against a part of the stop member to disable rotation of the set of auxiliary lock members and to lock the lock portions of the auxiliary lock members in a locked state. It is characterized by the following.

According to a second aspect of the present invention, in the lighting apparatus of the first aspect, a part of the set of auxiliary locking members is provided on the set of auxiliary locking members. An arm portion, wherein when the sealing rosette with a collar is fitted into the fitting hole, a collar portion of the sealing rosette with a collar presses the arm portion downward, and the set of auxiliary locking members Is rotated so as to be in the final mounting position.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a ceiling-mounted lighting fixture mounting device (hereinafter, referred to as a lighting fixture mounting device) of the present invention. The lighting fixture mounting apparatus 1 roughly makes an electrical connection to a lighting fixture main body 4 provided with an adapter 3 which is removably fitted and locked to a flanged ceiling rosette 2 and a flanged ceiling rosette 2. And a hook plug 6 having a pair of blades 5, 5 (not shown) on its upper surface for hooking.

As shown in FIG. 1, a sealing rosette 2 with a flange is a conventionally known one mounted on a ceiling surface (not shown), and separates electrical connection and mechanical connection from each other. Ceiling closet. The flanged sealing rosette 2 is provided with a pair of arcuate blade insertion holes 8, 8 around the center on the lower surface of a cylindrical rosette body 7, and each blade insertion hole 8 is formed as shown in FIG.
In FIG. 1, a blade receiving hole 9 is formed at the start end in the clockwise rotation direction, and a blade guiding portion 10 is formed continuously to the blade receiving hole 9 to the end. In addition, on the inner back surface of the back side of the blade guide portions 10, 10 of the blade insertion ports 8, 8,
A blade receiving portion (not shown) is provided, and a conductive connection terminal plate (not shown) connected to the indoor wiring is provided in the blade receiving portion.

Further, a flange 11 extending radially is provided at the lower end of the peripheral surface of the rosette body 7 over the entire circumference. The collar portion 11 forms a locking receiving portion that locks a locking claw provided on an adapter 3 of the lighting fixture body 4 described later.

FIG. 2 is a plan view of the adapter 3 viewed from below, and FIG. 3 is a plan view of the adapter 3 viewed from below.
It is a perspective view of. FIG. 4 is a cross-sectional view of the adapter, which is cut along the line AA in FIG. 2 and shows a main part. FIG. 5 shows B in FIG.
It is sectional drawing of the adapter which fractures | ruptures in -B line and shows a principal part.

A fitting hole 13 for fitting the flanged sealing rosette 2 is provided at the center of the adapter base 12, and is formed hollow inside the left and right sides of the adapter base 12 so as to communicate with the fitting holes 13. Left and right storage sections 14a,
14b are provided (see FIG. 4). A left locking member 16a and a right locking member 16b are disposed in the left and right storage portions 14a and 14b, respectively, with the locking claws 15a and 15b at their tips facing the center fitting hole 13, respectively. Both sides of the locking members 16a and 16b are
The adapter 3 is guided by each side wall of the adapter 3 and is slidable in the left-right direction of the adapter 3 (see FIGS. 2 and 4).

As shown in FIGS. 2 and 5, a central front portion of the adapter base 12 is substantially perpendicular to the position of the left and right locking members 15a, 15b in the adapter base 12 at the center of the fitting hole 13. In addition, overhangs 17a, 17b are provided at the center rear, and the overhangs 17a, 17
Inside b, auxiliary locking members 18a and 18b are provided so as to be rotatable up and down around a left-right axis.

The left engaging member 16a has an arcuate concave engaging claw 15a formed on the front part in plan view (see FIG. 2), and the right engaging member 16b also has an arc concave concave part on the front part seen in plan view. Locking claw 1
5b is formed (see FIG. 2). Each of the locking claws 15a, 15b of the left and right locking members 16a, 16b has a tapered portion 19 on the upper surface and a flat locking step 20 on the lower surface.
(See FIG. 4).

Further, as shown in FIG.
A locking claw for urging the locking claw 15a of the left locking member 16a to protrude from the inner surface of the fitting hole 13 between the rear wall 21a of the 4a and the rear portion of the left locking member 16a. The spring 22a is housed, and the rear wall 2 of the right housing portion 14b is housed.
A locking claw spring 22b for urging the locking claw 15b of the right locking member 16b to protrude from the inner surface of the fitting hole 13 is housed between the first locking member 1b and the rear portion of the right locking member 16b. Have been.

In the center of the lower surface of the left locking member 16a, the locking claws 15a of the left locking member 16a are not protruded from the inner surface of the fitting hole 13 so as not to project from the fitting hole 13. A release operation piece 23a for retreating to the state is provided. On the other hand, in the storage portion 14a of the adapter base 12, the left locking member 1 opening on the lower surface of the adapter base 12 is provided.
A rectangular positioning hole 24a for 6a is provided (see FIG. 4).

Similarly, at the center of the lower surface of the right locking member 16b, similarly, the locking claws 15b of the right locking member 16b are projected from the inner side surfaces of the fitting holes 13 so that the fitting holes 13b protrude from the respective inner surfaces.
A release operation piece 23b for retreating to the non-projecting state with respect to the
Is provided with a rectangular positioning hole 24b for the right locking member 16b opened on the lower surface of the adapter base 12 (see FIG. 4).

[0017] As shown in FIG.
The lower end surfaces of the release operation pieces 23a and 23b of 6a and 16b and the lower surfaces of both sides of the adapter base 12 are formed to be flush with each other, so that the release operation pieces 23a and 23b do not protrude from the lower surface of the adapter base 12. Provided. further,
On the lower surface of the adapter base 12, a left positioning hole 24 is provided.
a, a rectangular recess 25a is formed adjacent to the fitting hole 13 side, and a rectangular recess 25b is formed adjacent to the fitting hole 13 side of the right positioning hole 24b (see FIG. 4). .

As shown in FIGS. 3 and 5, the inner peripheral wall 26 of the fitting hole 13 of the adapter base 12 communicates with the front and rear overhang portions 17a, 17b,
2, through holes 27a and 27b (only one of the through holes 27b is shown in FIG. 3) are respectively provided in the vertical direction, and front and rear auxiliary locking members provided in the overhang portions 17a and 17b. 18a, 18b (arm 2 described later)
9a, 29b) are fitted through the through holes 27a, 27b.
3 protrudes.

The left and right locking members 16a and 16b are normally urged toward the central fitting hole 13 by locking claw springs 22a and 22b. The left side of the bottom of the recess 25a contacts the front end of the release operation piece 23a of the left locking member 16a, while the right side recess 25b on the center side of the adapter base 12
The right side of the bottom of the abutment contacts the front end of the release operation piece 23b of the right locking member 16b to regulate the position on the center side in the sliding, and each locking claw 15 of the left and right locking members 16a, 16b.
a, 15b are provided so as to protrude from the claw entrances 42a, 42b of the fitting hole 13 of the adapter base 12, respectively (see FIGS. 2 and 4).

FIG. 6 shows front and rear auxiliary locking members 18a, 18a.
It is a perspective view of b. The auxiliary locking member 18 has a rear portion formed in a semi-disc shape when viewed from the side.
A cylindrical shaft portion 28 is protrudingly provided on both side portions. An arm portion 29 extending forward is provided below the front portion of the auxiliary locking member 18, and a bulged portion 30 slightly protruding in an arc shape is formed at an upper end of the arm portion 29. In addition, a flat locking portion 31 that is notched vertically toward the shaft portion 28 is provided on the front upper side of the auxiliary locking member 18.

The front and rear auxiliary locking members 18a and 18b are provided with overhanging portions 17 provided at the front and rear of the adapter base 12.
a and 17b, the shafts 28 on both sides are rotatably supported in the vertical direction.
Springs 32a, 32b for the arm 29 and the arm 29
(See FIGS. 5 and 6). The front and rear auxiliary locking members 18a and 18b are normally urged by the springs 32a and 32b to be left and right auxiliary locking members 18a and 18b.
a, 18b are provided with through holes 27a, 27b.
And protrudes inside the fitting hole 13 in a substantially horizontal state so as to face each other (see FIGS. 2 and 5).

FIG. 7 is a perspective view of the hook plug 6 viewed from above. The hooking plug 6 includes a plug base 33 having a substantially rectangular parallelepiped shape (see FIG. 1). On the upper surface of the plug base 33, a pair of blades 5 and 5 are arranged on the same circumference so as to face each other. Further, on the same circumference as the blades 5, 5 and one of the blades 5, 5 (reference numeral 5a in FIG. 7).
(Indicated by clockwise in FIG. 7), the rotation of the hook plug 6 with respect to the sealing rosette 2 with the collar (clockwise rotation) is prevented. A locking claw portion 34 is provided so as to be able to protrude and retract from the upper surface of the plug base 33.

The locking claw portion 34 is in a locked state for preventing the hooking plug 6 from rotating (clockwise rotation) in the removing direction with respect to the flanged sealing rosette 2.
Hook plug 6 for sealing rosette 2 with collar
It can be freely moved to an unlocked state that allows rotation in the removal direction of the plug base (it can freely protrude and retract with respect to the upper surface of the plug base 33).
It is. On the side of the plug base 33, there is provided a lock claw release button 35 which is pressed and operated so that the lock claw portion 34 is immersed from the upper surface of the plug base 33.

Further, a flange portion (corresponding to the lock portion according to the first aspect) 36 having an annular peripheral wall 37 is provided outside the plug base 33 integrally with the upper surface of the plug base 33. (See FIG. 7). Note that the outer diameter of the flange portion 36 is slightly smaller than the fitting hole 13 formed in the adapter base 12, and the plug blades 5, 5 of the hooking plug 6 are inserted into the flanged sealing rosette 2. It smoothly enters the fitting hole 13 formed in the adapter base 12.

Inside the plug base 33, a conductive connection terminal plate 38 connected to the pair of blades 5, 5 is provided. As shown in FIG. 1, a power supply connector 39 connected to the connection terminal plate 38 is provided on the lower surface of the plug base 33. To the power supply connector 39, a fixture-side connector 41 attached to the tip of a connection cord 40 drawn out of the lighting fixture main body 4 is inserted and electrically connected.

The operation of the lighting fixture mounting apparatus 1 configured as described above will be described. The lighting fixture body 4 is attached by locking the adapter 3 to the flanged ceiling rosette 2 and then connecting the plug blades 5 and 5 of the hooking plug 6 to the flanged ceiling rosette 2 for electrical connection. Do.

First, the attachment of the adapter 4 to the flanged sealing rosette 2 will be described. 8 to 10 are schematic side views showing a process of attaching the adapter 3 to the flanged sealing rosette 2. 8 to 10, the adapter 3 is the same as that shown in FIG.
The cross section taken along the line AB in FIG. Also,
FIG. 8 shows a state before the adapter 3 is attached to the flanged sealing rosette 2, and FIG.
FIG. 10 shows a state in which the flange 11 of the sealing rosette 2 with a flange is fitted into the fitting hole 13 of the sealing rosette 2. And the locking portion 31 of the auxiliary locking member 18
(The final mounting position of the flanged sealing rosette 2 with respect to the adapter base 12). FIG. 11 is a perspective view showing an attached state of the adapter 3 to the flanged sealing rosette 2 from above.

The left and right locking members 16a, 16 of the adapter 3
b is slidable to the left and right sides of the adapter 3 in each of the storage portions 14a and 14b against the bias of the locking claw springs 22a and 22b, respectively.
When the force for pushing b toward the left and right sides is applied, the left and right locking members 16a and 16b move the storage portions 14a and 14b toward both sides while pressing and contracting the locking claw springs 22a and 22b. Locking claw 15 of stop members 16a, 16b
a and 15b enter into the claw entrances and exits 42a and 42b on the inner peripheral surface of the fitting hole 13 of the adapter base 12, respectively.

The release operation piece 23 of the left locking member 16a
While the rear end of the a contacts the rear end of the positioning hole 24a, the rear end of the release operation piece 23b of the right locking member 16b abuts the rear end of the positioning hole 24b, thereby restricting the left and right positions in the sliding. You.

The attachment of the adapter 3 of the luminaire main body 4 to the flanged ceiling rosette 2 is performed as follows. First, the flange 11 of the sealing rosette 2 with a flange is aligned with the fitting hole 13 of the adapter 3, and the adapter 3 is pushed up together with the lighting fixture body 4 (see FIG. 8).

When the flange 11 of the sealing rosette 2 with a collar is inserted into the fitting hole 13 of the adapter 3, the tapered portions 19, 19 formed on the upper surfaces of the left and right locking claws 15a, 15b of the adapter 4 are collared. Tapered part 11 formed at the lower end of the flange 11 of the attached sealing rosette 2
a, and the taper portions 19, 19 are pushed up by the adapter 3 (lighting device main body 4), and the tapered portions 11 of the flanged sealing rosette 2
a is pressed toward both left and right sides of the adapter 3, respectively.
The left and right locking members 16a, 16b slide to both sides of the adapter 3 against the urging of the locking claw springs 22a, 22b of the adapter 3 and retreat into the storage portions 14a, 14b, respectively, and are left locked. The locking claw 15a of the member 16a and the right locking member 16
The engaging claws 15b of FIG. 2b are respectively inserted into the claw entrances 42a and 42b of FIG. 2, and the flange portion 11 of the flanged sealing rosette 2 is inserted into the fitting hole 13 of the adapter 3 (FIG. 9).
reference).

When the flange 11 of the sealing rosette 2 with a collar is inserted into the fitting hole 13 of the adapter 3, the tapered portion 11 a formed at the lower end of the flange 11 of the sealing rosette 2 with a collar is used as an auxiliary member. Stop member 18
a, 18b abuts on the arms 29a, 29b and the adapter 3
As the (illumination device main body 4) is pushed up, the arm portions 29a, 29b of the auxiliary locking members 18a, 18b are formed by the tapered portion 11a of the flange portion 11 of the flanged sealing rosette 2.
Are respectively pressed downward, and the springs 32 shown in FIG.
auxiliary locking members 18a, 18b against the urging of the
Are rotated together with the respective shaft portions 28a, 28b in the direction indicated by the arrow, and the locking portions 31a,
31b is the brim portion 11 of the brimming sealing rosette 2
(See FIG. 9).

Subsequently, the lighting fixture main body 4 is pushed up so that the tips of the locking claws 15a and 15b exceed the collar 11 of the sealing rosette 2 with a collar.
At the same time, the right and left locking members 16a, 16b of the adapter 3 are moved by the locking claw springs 22a, 22b.
Are pushed toward the center of the fitting hole 13 so that the locking claw 15a of the left locking member 16a and the locking claw 15b of the right locking member 16b are moved to the left and right claw entrances 42a, 42b of the adapter 3. The locking claws 15a and 15b of the left and right locking members 16a and 16b are supported on the upper surface of the brim portion 11 of the flanged ceiling closet 2, and the lighting fixture body 4
Adapter 3 is supported and attached (see FIG. 10).

The auxiliary locking members 18a and 18b are further rotated together with the respective shaft portions 28a and 28b in the direction shown by the arrow in FIG. 9, and the left and right auxiliary locking members 18a and 18b
Rotation is restricted by contacting the inclined portion 43 formed at the lower portion of the inner rear wall of the overhang portion 17, and the arms 29a and 29b are oriented vertically downward. At the same time, the auxiliary locking member 18
The flat locking portions 31a and 31b of the a and 18b face in the horizontal direction, and are locked (supported) on the upper surface of the flange portion 11 of the flanged sealing rosette 2 (see FIG. 10).

That is, as shown in FIG. 10, at the final mounting position of the flanged sealing rosette 2 with respect to the adapter base 12, the left and right locking claws 15a,
15b and front and rear auxiliary locking members 18a, 18b, locking portions 3
1a and 31b are supported on the upper surface of the brim portion 11 of the flanged ceiling rosette 2, and the adapter 3 of the lighting fixture body 4 is supported and attached to the flanged ceiling rosette 2.

Next, a sealing rosette with a collar 2
The hooking plug 6 is attached to. FIG. 12 is a schematic side view showing a state in which the adapter 3 and the hook plug 6 are attached to the flanged sealing rosette 2. The hook plug 6 is supported by hand, and the pair of blades 5, 5 protruding from the upper surface of the hook plug 6 are connected to the pair of arcuate blade insertion holes 7, 7 of the sealing rosette 2 with flange. 8,
8 (see FIGS. 1 and 7).

A pair of blades 5, 5 projecting from the upper surface of the hooking plug 6 are inserted into the blade receiving holes 8, 8 of the pair of arcuate blade insertion holes 7, 7 of the flanged sealing rosette 2, respectively. In this state, the upper surface of the hook plug 6 and the lower surface of the flanged sealing rosette 2 come into contact with each other, and project from the upper surface of the hook plug 6 against the urging of the lock claw coil spring (not shown). The locking claw portion 11 is pushed down by the lower surface of the flanged sealing rosette 2 and sunk into the hook plug 6 from the upper surface.

Next, a sealing rosette with a collar 2
The hook plug 6 is turned in the counterclockwise direction in FIG. Since the person performs the mounting operation toward the ceiling-mounted ceiling closet on the ceiling surface, the user views from the lower surface of the hooking plug 6, and in actuality, as shown in FIG. And rotate. The hooking plug 6 is rotated counterclockwise with respect to the flanged sealing rosette 2, and the pair of blades 5, 5 are arcuate blade guiding portions 9, 9 of the flanged sealing rosette 2.
When the pair of blades 5, 5 is rotated to the end of the blade guiding portions 9, 9, the blades on the inner rear surface at the back of the ends of the pair of blade guiding portions 9, 9 are moved. Plug blade 3 in the receiving part
Each of the blades 3 is supported and mechanically attached, and the blades 5 and 5 are electrically connected to the connection terminal plate provided in the blade receiving portion (see FIG. 12).

When the pair of blades 5, 5 of the hooking plug 6 is rotated to the end of the pair of blade guiding portions 9, 9 of the flanged sealing rosette 2, the lock claw 11 is moved to the blade insertion slot 7. Of the blade receiving hole 8, and projects upward due to the return force of the coil spring (not shown) for the lock claw to fit into the blade receiving hole 8. In this state, the rotation of the hooking plug 6 in the removing direction (counterclockwise) with respect to the flanged sealing rosette 2 is performed by the lock claw 11.
The stopper plug 6 is locked by coming into contact with the peripheral edge of the blade receiving hole 8 to prevent the hooking plug 6 from coming off.

When the blade of the hook plug 6 is inserted into the flanged sealing rosette 2, the flange portion (lock portion) 36 of the hook plug 6 enters the fitting hole 13 provided in the adapter 3. Peripheral wall 3 of flange portion 36
7 are the arms 29 of the front and rear auxiliary locking members 18a, 18b.
a, 29b abuts on the bulging portions 30a, 30b at the tips (lower ends) of the auxiliary locking members 18a, 18b.
a, 28b is locked, and the auxiliary locking member 18 is locked.
a and 18b are locked in the locked state (see FIG. 12).
As a result, the left and right locking claws 15a, 15b of the adapter 3 and the front and rear auxiliary locking members 18a, 18b can be reliably held with respect to the brim portion 11 of the flanged ceiling 2, and unexpectedly. The lighting fixture can be prevented from falling.

After the hooking plug 6 is attached to the flanged sealing rosette 2, the lighting fixture body 4 is connected to a power supply connector 39 provided on the lower surface of the plug base 33.
The electrical connection is completed by inserting the device-side connector 41 on the side.

When the hook plug 6 is detached from the flanged sealing rosette 2, the lock release button 35 of the hook plug 6 is pushed into the hook plug 6 so that the lock claw 34 is inserted into the hook plug 6 from the upper surface. Then, the collision between the locking claw portion 34 and the peripheral edge of the blade receiving hole 8 of the blade insertion port 7 of the flanged sealing rosette 2 side was released, and the lock release button 35 of the hooking plug 6 was pushed inward. As it is
The hooking plug 6 is rotated in the removing direction (clockwise) with respect to the flanged sealing rosette 2, and the pair of blades 5, 5 are plugged into the pair of blade insertion holes 7, 7 of the flanged sealing rosette 2. After being moved to the blade receiving holes 8, the hooking plug 6 is removed from the flanged sealing rosette 2.

By detaching the hook plug 6 from the flanged sealing rosette 2, the front and rear auxiliary locking members 1 by the peripheral wall 37 of the flange portion 36 of the hook plug 6.
8a, 18b arms 29a, 29b (bulging portions 31a, 3
The contact state for 1b) disappears.

When the lighting fixture main body 4 is to be removed from the flanged ceiling closet 2, the release operation piece 23 is required.
a and 23b may be moved toward both sides, whereby the left and right locking claws 15a and 15b enter the claw entrances and exits 42a and 42b on the inner peripheral surface of the fitting hole 13, and the flange of the sealing rosette 2 with a flange. The locked state with the part 11 is released.
When the adapter 3 is moved downward by using the weight of the lighting fixture body 4 while the release operation pieces 23a and 23b are moved toward both sides, the flange 11 of the ceiling closet 2 with flange is moved. , Auxiliary locking members 18a, 18
b, the auxiliary locking members 18a, 18b are moved by the springs 32a, 32b.
The return force of the shaft 28a in the direction opposite to the arrow in FIG.
28b, the locking state of the collar 11 of the sealing rosette 2 with collar and the locking portions 31a, 31b of the auxiliary locking members 18a, 18b is released, and the auxiliary locking members 18a, 18b are 5, the adapter 3 can be removed from the flanged sealing rosette 2.

[0045]

According to the first aspect of the present invention, when fitting the flanged sealing rosette into the fitting hole of the adapter, a part of the fitting hole is protruded so that the peripheral edge of the fitting hole is formed. A pair of auxiliary locking members arranged at the opposing position are vertically rotated by the collar portion of the sealing rosette with a collar, and the locking of the left and right locking members at the final mounting position of the sealing rosette with the collar to the adapter base. The nail is supported on the upper surface of the flange of the sealing rosette with a flange, and the locking portion of a set of auxiliary locking members that is different from the locking claw of the left and right locking members has the flange of the sealing rosette with the flange. , The collar of the sealing rosette with the collar can be locked by the locking claw on the left and right of the adapter and the locking portion of the set of auxiliary locking members. Pawl It can be made more reliable locked state for flanged sealing rosette adapter than the locked state at. Also, if the hook plug is attached to the flanged ceiling closet with the adapter attached to the flanged ceiling rosette, the lock provided on the hooking plug with the hook blade of the hook plug inserted into the flanged ceiling closet The part abuts on a part of the set of auxiliary locking members to disable rotation of the set of auxiliary locking members and locks the locking portions of the auxiliary locking members in the locked state. It is possible to keep the adapter securely locked with respect to the flange portion of the attached ceiling, and to prevent the lighting fixture from dropping unexpectedly.

According to the second aspect of the present invention, when the flange portion of the sealing rosette with a flange is fitted into the fitting hole of the adapter, a set of auxiliary locking members protruding from the fitting hole are arranged. Arm portion is pressed downward by the collar portion, and the pair of auxiliary locking members is rotated so as to be in the final mounting position. In the final mounting position of the flanged sealing rosette with respect to the adapter base, the left and right locking members are locked. The locking claws of the member are supported on the upper surface of the brim portion of the flanged sealing rosette, and the locking portions of a set of auxiliary locking members that are different from the locking claws of the left and right locking members are sealed with the brim. Since the collar of the rosette is locked, the flange of the sealing rosette with the collar is fitted into the fitting hole of the adapter in the same manner as before when the adapter is attached to the sealing rosette with the collar. The adapter does not have to be troublesome, and the locking state of the adapter with respect to the flanged sealing rosette can be made more secure than the locking state of only the locking claws of the left and right locking members. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a ceiling-mounted lighting fixture mounting apparatus of the present invention.

FIG. 2 is a plan view of the adapter viewed from below.

FIG. 3 is a perspective view of the adapter viewed from below.

FIG. 4 is a cross-sectional view of the adapter, which is cut along line AA of FIG. 2 and shows a main part.

5 is a cross-sectional view of the adapter, which is cut along line BB in FIG. 2 and shows a main part.

FIG. 6 is a perspective view of front and rear auxiliary locking members.

FIG. 7 is a perspective view of a hook plug shown as viewed from above.

FIG. 8 is a schematic side view showing a state before an adapter is attached to a flanged sealing rosette.

FIG. 9 is a schematic side view showing a state in which a flange of a sealing rosette with a flange is fitted in a fitting hole of an adapter.

FIG. 10 is a schematic side view showing a final mounting position of a flanged sealing rosette with respect to an adapter base.

FIG. 11 is a perspective view showing an attached state of an adapter to a sealing rosette with a brim from above.

FIG. 12 is a schematic side view showing a state in which an adapter and a hooking plug are attached to a flanged sealing rosette.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lighting fixture mounting apparatus 2 Ceiling rosette with a flange 3 Adapter 4 Lighting fixture main body 5 Blade blade 6 Hook plug 7 Rosette main body 8 Blade insertion hole 9 Blade receiving hole 10 Blade guide part 11 Blade part 12 Adapter base 13 Fitting Hole 14 Storage portion 15 Locking claw 16 Locking member 17 Overhanging portion 18 Auxiliary locking member 19 Taper portion 20 Locking step portion 21 Rear wall 22 Locking claw spring 23 Release operation piece 24 Positioning hole 25 Depression 26 Inner wall Reference Signs List 27 through hole 28 shaft part 29 arm part 30 bulge part 31 locking part 32 spring 33 plug base 34 lock claw part 35 lock claw release button 36 flange part 37 peripheral wall 38 connection terminal plate 39 power supply connector 40 connection cord 41 appliance Side connector 42 Claw entrance 43 Slope

Claims (2)

[Claims] 1. A fitting hole for fitting a flanged sealing rosette in an adapter base provided in an instrument body, and left and right diametrically slidably provided on both sides of the fitting hole so as to face each other. And a biasing spring that biases the locking claws of the left and right locking members attached to and detached from the collar portion of the flanged sealing rosette so as to protrude from the inner surface of the fitting hole. A ceiling-mounted lighting fixture mounting device having an adapter provided and a hooking plug provided with a plug blade for electrically connecting to the flanged sealing rosette, apart from the left and right locking members, a set of An auxiliary locking member is provided at a position facing the periphery of the fitting hole so as to be rotatable in a vertical direction, and a part of a set of auxiliary locking members is arranged so as to protrude into the fitting hole. For a pair of auxiliary locking members
At the final mounting position of the flanged sealing rosette with respect to the adapter base, a locking portion is provided for locking the flange of the flanged sealing rosette fitted in the fitting hole, and the plug blade of the hooking plug is provided. In the state that it is inserted against the ceiling rosette with a collar,
A locking portion that abuts a part of the set of auxiliary locking members to disable rotation of the set of auxiliary locking members, and locks a locking portion of the auxiliary locking member in a locked state. A lighting fixture mounting device directly mounted on a ceiling, provided on the hook plug. 2. A part of the one set of auxiliary locking members is an arm provided on the one set of auxiliary locking members, and is used when fitting the flanged sealing rosette into the fitting hole. To
The ceiling according to claim 1, wherein a collar portion of the sealing rosette with a collar presses the arm portion downward to rotate the set of auxiliary locking members to the final mounting position. Lighting fixture mounting device.