JP3179279B2 - Ceiling-mounted lighting fixtures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted luminaire, and more particularly, to a ceiling-mounted luminaire having a simple attaching / detaching means for detachably attaching a light-transmitting glove to a luminaire body directly attached to a ceiling. Lighting device.

[0002]

2. Description of the Related Art A ceiling-mounted lighting apparatus generally has a simple attaching / detaching means for detachably attaching a light-transmitting glove to an apparatus body directly mounted on a ceiling. The simple detaching means used for this ceiling-mounted lighting fixture includes:
For example, there is a push button device as disclosed in Japanese Utility Model Publication No. 56-112810.

[0003] This push button device is applied to a square ceiling-mounted lighting fixture. In recent years, a round ceiling-mounted lighting fixture has been awarded instead of a square one. The simple detachable means having the same structure as the push button device is also used for the round ceiling-mounted lighting fixture.

As disclosed in the above-mentioned publication, a push button device which is also applied as a simple detachable means to a round ceiling-mounted lighting fixture is tilted against the elasticity of a spring of the fixture body. A hook that is freely attached and has an engaging hole, a claw fitting that is attached to the inside of the frame of the translucent glove and that is inserted into the engaging hole of the hook, and a pushable push button provided on the frame It is composed of

When the translucent glove is attached by the push button device, the nail of the translucent glove is aligned with the hook of the appliance body, and the translucent glove is pushed up to be hooked by the nail. The tool is forcibly tilted against the elastic force of the spring, and finally when the claw fitting is inserted into the engaging hole of the hook, the hook is raised by the elastic force of the spring and returns to the initial state, Engage the hook with the hook. The translucent glove is held by the main body of the device by the state in which the claw fitting is engaged with the hook.

On the other hand, when removing the translucent glove from the instrument body, the pusher is pushed in from the side to forcibly incline the hook against the elastic force of the spring, and the claw metal is attached to the hook. It is pulled out from the engagement hole and released from its locked state. By releasing the claw fitting from the hook, the translucent glove can be separated from the device main body.

[0007]

By the way, in the simple attaching / detaching means used in the above-mentioned round-shaped ceiling-mounted lighting fixture, parts made of push buttons, claw fittings and springs are mounted on the translucent glove. It had to be mounted, and the number of parts was large, resulting in an increase in product cost. Also, when attaching the translucent glove to the instrument body, the claw fitting of the translucent glove must be aligned with the hook of the instrument body, and also when removing the translucent glove, The operation must be performed while operating the push button at a height near the ceiling, and the work of attaching and detaching the translucent glove is troublesome, and the workability is reduced. Furthermore, since the push button protrudes and is exposed on the outer side of the translucent glove, it is not preferable in appearance, and there is a problem that the commercial value is reduced.

Accordingly, the present invention has been proposed in view of the above problems, and its object is to reduce the number of parts of the simple attaching / detaching means, to facilitate the work of attaching the translucent glove, and to improve the appearance. It is an object of the present invention to provide a ceiling-mounted lighting device equipped with a favorable translucent glove.

[0009]

SUMMARY OF THE INVENTION As technical means for achieving the above object, the present invention relates to an apparatus main body fixed directly to a ceiling, and a light-transmitting apparatus which is detachably attached to the apparatus main body by a simple attaching / detaching means. Gloves, and the simple attaching and detaching means of the translucent glove is disposed near the peripheral edge of the instrument body, at least one of which moves in and out of the instrument body,
A plurality of glove fixing claws elastically biased outward, a locking portion for the glove fixing claw formed on the upper part of the translucent glove, and a device extending upward from the locking portion, and A curved portion formed on a rising portion corresponding to a glove fixing claw movable inward and outward of the main body. The glove is rotated by rotating the glove in a state where the glove is locked on the glove fixing claw, and the glove fixing claw is formed on the curved portion. By retreating,
The glove fixing claw is released from locking the glove.

The glove fixing claw of the present invention has a base plate at its base end which is pressed by a curved portion by rotation of the glove, and the pressing surface of the base plate has an angle with respect to the rotation direction of the glove. , And
It is desirable to provide a stopper that abuts against a curved portion that retreats the glove fixing claw by the rotation of the globe and that prevents the curved portion from moving. Further, a guide plate may be fixedly arranged adjacent to the glove fixing claw, and the rising part of the glove may be brought into contact with the glove guide, and then the glove fixing claw may be retracted at the rising part by pushing the glove. is there.

[0011]

With the ceiling-mounted lighting device according to the present invention, the curved part is formed only at the rising part of the translucent glove in the means for easily attaching and detaching the translucent glove, so that the number of parts can be reduced. It becomes possible. Also, when attaching the translucent glove, just make sure that the curved part of the translucent glove does not correspond to the glove fixing claw of the instrument body,
Since the glove fixing claw can be locked to the locking portion of the translucent glove, there is no need to align the instrument body with the translucent glove. It is only necessary to rotate the glove in the circumferential direction, and the attachment and detachment of the translucent glove is facilitated.

Further, if the base plate of the glove fixing claw is angled, the curved portion of the translucent glove smoothly retracts the glove fixing claw, thereby facilitating its removal.
In addition, if the stopper is provided, the curved portion can be positioned, and the locking state by the glove fixing claw can be reliably released. In addition, if the glove guides are arranged side by side, the translucent glove does not rattle at the start of the mounting of the translucent glove.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.

The round ceiling-mounted lighting fixture of the present invention is fixed directly to the ceiling 1 as shown in FIGS. 1 to 3, and has a lamp housing (not shown) in the center thereof. And a circular plate-shaped fixture body 4 having a fluorescent reflector 3 suspended below the reflector plate 2 and a light-transmitting light-removably attached to the fixture body 4 by simple detaching means 5 described later. And a translucent glove 6.

That is, the simple attaching / detaching means 5 is connected to the instrument body 4
A glove fixing claw 8 disposed at, for example, two radial positions near the peripheral edge portion 7 and elastically biased radially outward of the instrument body 4, and a substantially horizontal shape formed on the upper part of the translucent glove 6. A locking portion 6a, a rising portion 9 extending upward from the locking portion 6a, and projecting inward from the rising portion 9 so that the glove fixing claw 8 is opposed to the elastic force at the corresponding position and the tool body 4
And a curved portion 10 that retreats inward in the radial direction.

Specifically, as shown in FIGS. 4 and 5 (a) and 5 (b), the glove fixing claw 8 is provided at two places in the radial direction in the vicinity of the peripheral edge 7 of the instrument body 4. Two gloves 6 are provided at an interval to prevent rattling of the glove 6. Each of the glove fixing claws 8 has a tapered portion 11, each base end portion of which is connected at intervals by a base plate 12, and the rod 1 extending radially inward from the base plate 12.
3 is a case 1 fixed near the periphery 7 of the instrument body 4.
4 is inserted and arranged via a spring 15. As a result, the glove fixing claw 8 is in a state of being elastically urged radially outward of the instrument body 4 by the elastic force of the spring 15, and the distal end portion facing outward in the radial direction is closer to the peripheral edge 7 of the instrument body 4. Are also set to be protruding positions.

On the other hand, curved portions 10 projecting inward are formed at two rising portions 9 of the translucent globe 6 in the radial direction by drawing such as pressure forming. Here, in the device main body 4 described above, at the limit position where the glove fixing claw 8 protrudes outward due to the elastic force of the spring 15, the translucent light is transmitted between the base plate 12 and the peripheral edge 7 of the device main body 4. A gap m that allows the rising portion 9 of the globe 6 to enter is formed. As will be described later, when the translucent globe 6 is removed, the curved portion 10 of the translucent glove 6 enters the gap m between the base plate 12 and the peripheral edge 7 of the device main body 4. The interval between the claws 8 is set to such an extent that the curved portion 10 can escape.

In FIG. 2, reference numeral 16 denotes two places in the direction substantially perpendicular to the radial direction of the instrument main body 4 provided with the above-mentioned simple attaching / detaching means 5, and when the translucent globe 6 is mounted, the translucent globe is used. 6 is a guide plate fixed to the instrument main body 4 so as not to be displaced in the above-described orthogonal direction with respect to the instrument main body 4,
Unlike the above-mentioned glove fixing claw 8, the distal end portion facing outward in the radial direction is at a position where it does not protrude from the peripheral edge 7 of the instrument body 4. The guide plate 16 is not always necessary, and is not particularly necessary when the simple attaching / detaching means 5 is provided at three positions on the instrument main body 4 and the translucent globe 6 at the same circumference.

The attachment and detachment of the translucent globe 6 by the simple attaching / detaching means 5 of the present invention are performed in the following manner.

First, when attaching the translucent glove 6 to the instrument main body 4, the translucent glove 6 is pushed up as shown in FIGS. 7 Fit inside. At this time, it is not necessary to align the translucent glove 6 with the glove fixing claw 8 of the device main body 4, and the rising portion of the translucent glove 6 is simply positioned with respect to the glove fixing claw 8 of the device main body 4. It is sufficient that the nine curved portions 10 do not correspond to each other.

When the translucent glove 6 is fitted, the rising portion 9 of the translucent glove 6 is attached to the peripheral edge 7 of the instrument body 4.
The glove fixing claw 8 is brought into contact with the tapered portion 11 of the glove fixing claw 6 projecting further outward, and the glove fixing claw 8 is retracted radially inward against the elastic force of the spring 15 by pushing up the translucent glove 6. Then, when the rising portion 9 of the translucent globe 6 passes through the distal end of the glove fixing claw 8 that faces outward in the radial direction,
At the same time when the rising portion 9 of the translucent glove 6 fits inside the peripheral portion 7 of the device main body 4, the pressing of the glove fixing claw 8 by the rising portion 9 of the translucent glove 6 is released, and the glove fixing claw 8 is released. It is elastically urged outward by the elastic force of the spring 15 and protrudes, and is held by the instrument body 4 in a state where the locking portion 6a of the translucent glove 6 is locked by the glove fixing claw 8.

On the other hand, when the translucent glove 6 is detached from the instrument body 4, FIGS. 7A and 7B and FIG.
By rotating the translucent glove 6 in the circumferential direction with respect to the instrument body 4 as shown in FIG. 2B, the curved portion 10 of the rising portion 9 of the translucent glove 6 is turned into the glove fixing claw 8.
Into the gap m between the base plate 12 and the peripheral portion 7 of the instrument body 4. Thus, the curved portion 10 protruding radially inward of the translucent globe 6 pushes the base plate 12 of the glove fixing claw 8 radially inward against the elastic force of the spring 15 to retreat. By the retreat of the glove fixing claw 8, the locking state of the translucent glove 6 by the glove fixing claw 8 is released. In this manner, the light-transmitting globe 6 is released from the locked state by the glove fixing claw 8 only by rotating the light-transmitting globe 6 in the circumferential direction, and the light-transmitting globe 6 can be separated.

Next, another embodiment of the present invention will be described with reference to FIGS.
2 will be described. The difference from the above-described embodiment lies in the structure of the device body including the glove fixing claw of the simple attaching / detaching means, and the other structures are denoted by the same reference numerals.

Simple detaching means 5 'for the translucent globe 6
Connects the base ends of two glove fixing claws 8 'having a tapered portion 11' with a base plate 12 'as shown in FIG.
It has a structure in which a rod 13 'extending from the base plate 12' is inserted and arranged via a spring 15 'in a case 14' fixed near the peripheral portion 7 of the instrument body 4. The glove fixing claw 8 ′ is elastically urged to the outside of the instrument body 4 by the elastic force of the spring 15 ′. Is set to

In this embodiment, the case 14 'is arranged so that the axial direction of the rod 13' inserted into the case 14 'forms an angle θ of, for example, about 15 ° with the radial direction of the instrument body 4. I do. Thereby, the front surface of the base plate 12 'at the tip of the rod 13', that is, the translucent globe 6
The pressing surface pressed by the curved portion 10 is arranged so as to form an angle with respect to the direction along the peripheral portion 7 of the instrument body 4, that is, the rotation direction of the translucent globe 6. However, the pressing surface of the base plate 12 ′ makes an angle only on the one glove fixing claw 8 ′ side where the curved portion 10 enters, and the other glove fixing claw 8 ′ side is the peripheral edge of the instrument body 4. The base plate 12 ′ has a bent shape along the portion 7. Also, as described above, the case 14 'and the rod 13' make an angle with respect to the radial direction of the instrument body 4,
The two glove fixing claws 8 'are provided so as to be substantially parallel to the radial direction.

In this embodiment, the translucent globe 6 is used.
Curved part 1 that retreats glove fixing claw 8 'by rotation of
There is provided a stopper 17 which abuts on the zero and prevents the movement of the curved portion 10. Specifically, a notch 18 is opened in a part of the base plate 12 ', and the glove fixing claw 8'
The plate-like stopper 17 which enters the cutout 18 of the base plate 12 'and protrudes forward by the retraction of the case 14'
Protruding from. Further, a glove guide 19 is fixedly disposed adjacent to the base plate 12 'outside the glove fixing claw 8', for example, extending from the case 14 '. The glove guide 19 has a tapered portion 20 similar to the glove fixing claw 8 '.
, And a shape in which a straight portion 21 corresponding to the peripheral portion 7 of the instrument main body 4 is extended from the tapered portion 20. The tapered portion 20 of the glove guide 19 is located slightly forward of the tapered portion 11 'of the glove fixing claw 8', so that the rising portion 9 of the glove 6 is formed.
Is brought into contact with the glove guide 19, and the glove 6 is pushed in to retreat the glove fixing claw 8 ′ at the rising portion 9.

A lever 22 extending outwardly from the instrument body 4 is protruded from a substantially central portion of the base plate 12 'so as to be used in an emergency such as when a trouble occurs when the translucent glove 6 is attached or detached. By pressing the lever 22, the glove fixing claw 8 'is forcibly retracted, so that the locking of the translucent glove 6 by the glove fixing claw 8' can be released.

The attachment and detachment of the translucent globe 6 by the simple attaching / detaching means 5 'of this embodiment are performed in the following manner.

First, when attaching the translucent glove 6 to the instrument main body 4, the translucent glove 6 is pushed up and the rising portion 9 is fitted inside the peripheral edge 7 of the instrument main body 4, similarly to the above-described embodiment. . The difference from the above-described embodiment is that at this time, the rising portion 9 of the translucent globe 6 first comes into contact with the tapered portion 20 of the glove guide 19, so that the translucent globe 6 starts a stable mounting operation without rattling. can do. After the rising portion 9 is brought into contact with the tapered portion 20 of the glove guide 19 in this way, the glove fixing claw 8 ′ is pushed inward by pushing up the translucent glove 6 against the elastic force of the spring 15 ′. The device main body 4 is finally retracted while the locking portion 6a of the translucent glove 6 is locked by the glove fixing claw 8 '.
Is held.

On the other hand, when the translucent glove 6 is detached from the instrument main body 4, the light transmissive glove 6 is rotated in the circumferential direction with respect to the instrument main body 4, so that the rising portion 9 of the translucent glove 6 is formed. The curved portion 10 is fitted into a gap m ′ between the base plate 12 ′ of the glove fixing claw 8 ′ and the peripheral edge 7 of the instrument body 4. The difference from the above embodiment is that
Since the pressing surface of the base plate 12 ′ of the glove fixing claw 8 ′ is at an angle with respect to the rotation direction of the translucent glove 6, the curved portion 10 of the rising portion 9 is formed between the base plate 12 ′ and the instrument body 4. It smoothly enters the gap m 'with the peripheral portion 7. In this way, the curved portion 10 of the translucent glove 6 that has entered the gap m 'presses the base plate 12' of the glove fixing claw 8 'inward against the elastic force of the spring 15' to retract. Thus, the locked state of the translucent globe 6 by the glove fixing claw 8 'is released, and the translucent globe 6 can be separated. At this time, the curved portion 10 is connected to the base plate 12 '.
Is pushed back, the stopper 17 projects from the notch 18 of the base plate 12 ', and the stopper 17
The curved portion 10 abuts against the movement of the curved portion 10. As a result, the position of the translucent globe 6 is regulated in the rotation direction, and the locking state by the glove fixing claw 8 'is reliably released without excessively rotating the translucent globe 6.

The present invention can be applied not only to a lighting device for a ring-shaped fluorescent lamp but also to a lighting device using a straight tube fluorescent lamp, a light bulb, a compact fluorescent lamp, or the like. In the above embodiment, the case where the simple attaching and detaching means 5 and 5 ′ for the translucent globe 6 are provided at two radial positions of the instrument body 4 and the translucent globe 6 is described, but the present invention is not limited to this. The device main body 4 and the translucent glove 6
May be provided at three locations at the same circumference. In addition, at least one of the glove fixing claws may be movable by the curved portion, and the other may be configured to be completely fixed. Further, the forming of the curved portion is not limited to the drawing process, and vacuum forming, pressure forming, or the like can be employed, and another piece can be fixed to the rising portion. Further, the shapes of the device main body and the glove are not limited to circular shapes.

[0032]

According to the present invention, since only a curved portion is formed in the translucent globe, the number of parts is reduced and the cost of the product can be easily reduced. Also, when mounting the translucent glove, it is only necessary to make the curved part of the translucent glove not correspond to the glove fixing claw of the appliance main body, so that the alignment of the translucent glove to the appliance main body becomes unnecessary. Also, when removing the light-transmitting glove, it is only necessary to rotate the light-transmitting glove in the circumferential direction, and attachment / detachment of the light-transmitting glove is simplified, thereby greatly improving workability.

Further, if the base plate of the glove fixing claw is angled, the curved portion of the translucent glove smoothly retreats the glove fixing claw, thereby facilitating its removal.
In addition, if the stopper is provided, the curved portion can be positioned, and the locking state by the glove fixing claw can be reliably released. In addition, if the glove guides are arranged side by side, the translucent glove does not rattle at the start of the mounting operation of the translucent glove. According to the above, the attachment and detachment of the translucent glove can be performed more reliably and smoothly, and the workability can be dramatically improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a round ceiling-mounted lighting fixture with a translucent glove removed, showing one embodiment of the present invention.

FIG. 2 is a view of the device main body of FIG. 1 taken along the line AA.

FIG. 3 is a view taken on line BB of the translucent glove of FIG. 1;

FIG. 4 is an exploded perspective view showing a simple attaching / detaching means of a light-transmitting glove provided on the instrument body.

5 (a) is an enlarged sectional view of a main part showing a state in which the simple attaching / detaching means of FIG. 4 is assembled to an instrument body, and FIG. 5 (b) is a plan view showing a partial sectional view of FIG.

FIG. 6A is a cross-sectional view showing a state in which a light-transmitting glove is attached to an instrument body by a simple attaching / detaching means, and FIG. 6B is a plan view of FIG.

FIGS. 7A and 7B show a state in which the light-transmitting glove is detached from the appliance body by the simple attaching / detaching means, FIG. 7A is a partial perspective view showing a state before the light-transmitting glove is rotated, and FIG. Partial perspective view showing the rear state

FIG. 8A is a cross-sectional view showing a state in which a light-transmitting glove is removed from a device main body by a simple attaching / detaching means, and FIG. 8B is a plan view of FIG.

FIG. 9 is a perspective view of the simple attaching / detaching means according to another embodiment of the present invention as viewed from above.

10 is a perspective view showing a state in which the glove fixing claw of the simple attaching / detaching means in FIG. 9 is retracted.

FIG. 11 is a plan view of the simple attaching / detaching means of FIG. 9 attached to the instrument body as viewed from below.

12 is a plan view showing a state in which the glove fixing claw of the simple attaching / detaching means of FIG. 11 is retracted at a curved portion of the translucent glove.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling 4 Instrument main body 5, 5 'Simple attaching / detaching means 6 Translucent glove 6a Locking part 7 Peripheral part 8, 8' Glove fixing claw 9 Standing part 10 Curved part 12 'Base plate 17 Stopper 19 Glove guide

Continuation of the front page (56) References JP-A-6-76619 (JP, A) JP-A-6-203619 (JP, A) JP-A-4-116304 (JP, U) JP-A-5-72015 (JP) , U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F21V 17/00

Claims (4)

(57) [Claims] 1. An appliance body directly attached and fixed to a ceiling, and a translucent glove removably attached to the appliance body by a simple attaching / detaching means. A plurality of glove fixing claws arranged near the periphery, at least one of which moves in and out of the instrument body and is elastically urged outward, and a glove fixing formed on the upper part of the translucent glove A glove-fixing claw, and a curved portion formed in a rising portion corresponding to the glove-fixing claw that extends upward from the locking portion and that can move in and out of the instrument body. A ceiling-mounted lighting device characterized in that the glove is rotated while the glove is locked to retract the glove fixing claw at the curved portion, thereby releasing the locking of the glove by the glove fixing claw. 2. The glove fixing claw has a base plate at its base end which is pressed by a curved portion by rotation of the glove,
The direct-mounted ceiling lighting device according to claim 1, wherein the base plate is arranged such that a pressing surface thereof forms an angle with a rotation direction of the glove. 3. The ceiling-mounted type according to claim 1, wherein a stopper is provided which abuts on a curved portion for retracting the glove fixing claw by rotation of the globe and prevents movement of the curved portion. lighting equipment. 4. A glove fixing claw is fixedly arranged adjacent to the glove fixing claw, and the rising portion of the glove is brought into contact with a glove guide, and then the glove is pushed in to retract the glove fixing claw at the rising portion. The ceiling-mounted lighting fixture according to claim 1, 2 or 3, wherein: