JPH0642321B2 - Ceiling embedded lighting fixture mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a mounting device for a ceiling-embedded lighting fixture.

<Prior Art> Generally, when installing an embedded lighting fixture such as a downlight on a ceiling surface, a type in which a worker can insert a worker into the interior of the fixture is disclosed, for example, in JP-A-60-107201 and Japanese Utility Model Application. As can be seen from 55-79011 and 60-110925, various mounting brackets that are separate and independent from the instrument body are used, and these can be moved by the operator's hands to fix the instrument body to the ceiling surface. It is designed to let you.

However, unlike this, in the case of a type in which the work cannot be inserted into the inside of the instrument body, a leaf spring (b) bent into a substantially "L" shape as shown in FIGS. In the vicinity of the upper end of the mounting plate portion (1) that forms the base end side thereof, it is customary that it is integrally attached to the body surface (2) of the instrument body (a) by a rivet (3) in a preliminarily fixed state. When embedded in the ceiling surface, the protruding blade plate part (4) forming the free end side of the plate spring (b) is bent and deformed in the direction of coming into contact with the body surface (2) of the instrument body (a). It is like this.

<Problems to be Solved by the Invention> However, in such a conventional mounting device, the lighting fixture is always determined and firmly determined regardless of the change in the thickness of the ceiling material (5) and the variation in the diameter of the embedded hole (g). It is difficult to keep it installed.

Cover and mount on the ceiling surface as above, leaf spring (b)
The overhanging wing plate (4) is the body surface (2) of the instrument body (a).
It is forcibly bent and flattened in the direction of contact with, and the bending fulcrum (z) at the lower end thereof is pushed into the embedding hole (g), and the overhanging vane portion (4) generated at that time Since the instrument body (a) is locked and fixed to the ceiling surface only by the restoring elastic force of the above, the overhanging blade plate depends on the thickness of the ceiling material (5) and the diameter of the embedding hole (g). This is because the restoring elastic pressure of the part (4) also changes strongly.

That is, when the thickness dimension (t) of the ceiling material (5) is thick as shown in FIG. 16 or the diameter dimension (d) of the embedding hole (g) is relative to the outer dimension of the instrument body (a), When it is small, the restoring elastic pressure of the overhanging vane part (4) becomes strong, but as shown in FIG. 17, when the thickness dimension (t) of the ceiling material (5) is thin, or when the embedding hole a (g) is small. When the diameter dimension (d) is relatively large with respect to the instrument body (a), the restoring elastic pressure of the overhanging blade portion (4) is weakened.

As a result, the luminaire installed especially under the latter condition is immediately rattled even if a slight natural external force is applied, and there is a risk that the luminaire may unintentionally dangle from the ceiling surface.

<Means for Solving the Problem> The present invention is intended to improve such a problem, and has a structure for that purpose, which is attached to the body surface of the instrument body by a mounting shaft so that the mounting plate portion of the "Le" shaped leaf spring is formed. With the lower end position of the mounting plate as the bending fulcrum, the protruding blade plate of the leaf spring that continuously projects laterally outward is bent in the direction of contact with the body surface of the instrument body while flattening the ceiling surface. In a ceiling-embedded lighting fixture in which the fixture main body is locked and fixed to the ceiling material by the restoring elastic pressure of the protruding vane portion, the receiving elongated hole of the mounting shaft is provided on the body surface of the fixture main body. The through hole is formed in an elongated opening shape in the vertical direction, and a locking claw is provided on one of the mounting plate portion of the leaf spring and the body surface of the instrument body, and the remaining receiving recess for the locking claw is provided on the other side. By arranging them in several rows above and below, By manually forcibly lifting and lowering the leaf spring so that the pawls selectively engage with the plurality of receiving recesses, the protruding wing plate portion of the leaf spring is constantly operated regardless of the change in the thickness of the ceiling material. The main feature is that the ceiling material is set so as to be locked under a uniform restoring elastic force.

<Embodiment> The specific configuration of the present invention will be described in detail below with reference to the illustrated embodiment. In FIGS. 1 and 2 showing the mounting state of the ceiling-embedded luminaire, (A) is a metal plate. This is a three-dimensional instrument body that is rolled into a cylindrical shape, and a large number of heat dissipation holes (12) are punched and opened in the body surface (11). Reference numeral (13) is a cover plate attached to the upper surface of the device body (A), and a large number of heat dissipation holes (14) are also formed in the cover plate. Reference numeral (15) is a connecting terminal fixedly installed on the upper surface of the cover plate (13).

Further, (16) is a decorative frame fitted to the lower surface of the appliance body (A), and the flange portion (17) projecting outward of the decorative frame allows the embedded hole (G) to be opened in the ceiling material (18). The makeup is applied from below. (D) indicates the diameter of the embedding hole (G), and (t) indicates the thickness of the ceiling material (18).

Reference numeral (19) is a cone built into the instrument body (A), and a lock ring (20) having an L-shaped cross section is integrally attached to the upper end of the cone by a plurality of rivets (21). (22) is a support stay having an inverted L-shaped cross-section that supports the locking ring of the cone (19) from below, and a plurality of radially symmetrical distribution stays are attached to the body surface (11) of the instrument body (A). It is fixed by rivets (23). Therefore, the cone (19) can be horizontally rotated, which is useful for changing the light projection direction of the lamp, which will be described later.

(24) is a pair of facing hood suspension pieces that are integrally hung inside the cone (19), also serving as the fixing rivets (21) for the locking ring (20), and at the lower end thereof. A hood (26) is pivotally attached via a rivet (25) so that it can be swung freely. In other words, the hood (26) has a generally deep cone shape and is housed inside the cone (19), so that the direction in which the lamp is projected can be changed by adjusting the swing angle of the cone. Has become.

Further, (27) is a socket mounting frame fixedly installed on the upper surface of the hood (26) with screws (28), and the socket (2
9) is installed. (30) is a lamp planted downward from the socket (29), (31) is a conical reflector surrounding the lamp (30), and the lower edge of the opening is the hood (2
6) It is fitted in the middle part and the ring spring from below.
It is fixed by (32) so that it cannot fall off.

Further, (B) is a pair of leaf springs for mounting the lighting fixture facing the ceiling surface, and each of them is bent and formed into a substantially "L" shape as a whole.

That is, in FIGS.
3) is a vertical mounting plate portion forming the base end side of the leaf spring (B), and its substantially central portion is mounted on the body surface (11) of the instrument body (A) by a mounting shaft described later. . Reference numeral (34) is a shaft insertion hole, and reference numeral (35) is a pair of left and right ears bent inward at right angles from the upper end of the mounting plate portion (33) to prevent the plate spring (B) itself from stabilizing. Fulfill.

(36) is a narrow elastic piece that is continuously extended upward from between the two ear pieces (35). It is formed as a locking claw (37). The wedge-shaped bending angle (α) is preferably set to about 90 degrees so that the upper and lower surfaces of the locking claw (37) are symmetrically inclined and inclined.

On the other hand, reference numeral (38) is a protruding blade plate portion which forms the free end side of the leaf spring (B), and the bending angle (β) of about 30 degrees is primarily maintained from the lower end of the mounting plate portion (33). In the folded state, the plate is once bulged laterally outward, and then the secondary mounting plate continues.
Under the condition of maintaining a crossing angle (γ) of about 50 degrees with (33), it is formed to extend further outward in the lateral direction.

(39) shows the mid-flat surface of the blade part (38) due to the two-stage bending, and (40) shows the extension tip of the blade part (38), respectively, but the tip (40) is in a superposed state. By being folded back, it is possible to improve the safety in handling the device and to easily embed it in the embedding hole (G). still,
Reference numeral (41) is a shaft escape hole punched and opened in the blade plate portion (38) at a position corresponding to the shaft insertion hole (34) of the mounting plate portion (33).

The mounting plate portion (33) of each leaf spring (B) is applied to the body surface (11) of the instrument body (A) from the outside, as is clear from FIGS. It is attached to the body surface (11) of the instrument body (A) by a mounting shaft (42) such as a ribet, pin, bolt, nut, etc. that penetrates the shaft insertion hole (34). However, in that case, as is apparent from FIGS. 3 to 6, the receiving elongated hole (4) of the mounting shaft (42) is formed on the body surface (11) of the instrument body (A).
3) are punched and arranged in the form of elongated openings extending in the vertical direction, which allows the leaf spring (B) itself to move up and down.

Further, (44) is a pair of left and right ear piece receiving elongated holes which are engaged with the ear pieces (35) of the leaf spring (B).
It is also punched on the body surface (11) of the instrument body (A) as an elongated opening parallel to (43). Further, (45) is a recess for receiving the locking claw (37) of the leaf spring (B),
This is a punched opening in the body surface (11) of the device body (A) as a plurality of upper and lower steps that maintain a constant interval (w), and the locking claw (37) of the leaf spring (B) is selected inside it. It is designed to be received and locked.

The number of the claw receiving recesses (45) and the vertical distance (w) between adjacent ones of the claw receiving recesses (45) should be properly selected in advance so that the change in the thickness dimension (t) of the ceiling material (18) can be accommodated. Good.

That is, the mounting plate portion (33) of the leaf spring (B) is attached to the mounting shaft (42).
Is attached to the body surface (11) of the instrument body (A) so as not to fall off, and at the same time, both ears (35) thereof are inserted into the earpiece receiving elongated holes (44) of the instrument body (A). Similarly elastic pieces (36)
Locking claw (37) of the device is a claw receiving recess in the device body (A).
Any one of (45) is in an elastically biased state in which both are locked, and under the locked state, vibration, impact, and other natural external force are applied, but the instrument body (A) is further Even if it is pushed into the embedded hole (G) on the ceiling surface, it is kept so that the leaf spring (B) itself does not rise and fall accidentally.

<Operation> Therefore, assuming that the above-mentioned two claw receiving recesses (45) are present as a pair of upper and lower as shown in the figure, when the lighting fixture is embedded in the embedding hole (G) on the ceiling surface, the ceiling is now being used. When the thickness dimension (t) of the material (18) is thin as shown in FIGS. 1 and 2, the leaf spring (B) is attached to the shaft receiving slot (43) of the instrument body (A).
And follow the guide of the ear piece receiving slot (44), forcibly lowering it by force to engage the locking claw (37) of the leaf spring (B) with the lower receiving recess (45). Keep it. The operation can be executed without using special tools by holding the protruding blade part (38) of the plate spring (B) itself.

Then, the overhanging blade portion (38) of the leaf spring (B) is bent in a direction in which it contacts the body surface (11) of the appliance body (A) to be flattened, and the lighting fixture is embedded in the ceiling hole (G). Push it in. Then, at the final time when the decorative frame (16) of the luminaire contacts the lower surface of the ceiling material (18), the protruding vane part (38) of the leaf spring (B) will be projected outward laterally by itself. Then, the ceiling material (18) is securely locked from above, and the lighting fixture can be maintained in a stable fixed state.

At that time, even if the diameter dimension (d) of the embedding hole (G) varies greatly depending on the outer diameter dimension of the instrument body (A), the opening edge portion of the embedding hole (G) The lower end of the leaf spring (B) is securely locked to this, and the restoring elastic force of the overhanging blade plate (38) whose lower end is the bending fulcrum (z) acts on the ceiling material (18) without loss. Therefore, it is possible to effectively prevent rattling and the like in the embedded installation state of the lighting fixture.

On the other hand, when the thickness dimension (t) of the ceiling material (18) is thick as shown in FIG. 12, the leaf spring (B) is operated to move upward, and its locking claw (37) is received in the upper receiving recess. After receiving and locking it in the place (45), the lighting fixture is pushed into the embedded hole (G) in the ceiling surface in the same manner as above, and then the leaf spring (B)
By the same function of the overhanging blade part (38) in the above, the lighting fixture can also be maintained in a stable and firm installation state.

In any case, the thickness change of the ceiling material (18) and the embedded hole (G)
The variation in the caliber in the plate spring (B) is adjusted / absorbed by the raising / lowering operation of the plate spring (B), so that the protruding blade plate part (38) of the plate spring (B) is always under a uniform restoring elastic pressure, and the luminaire is Will be fixedly held on the ceiling surface. Also, in terms of its operation, since both ear pieces (35) of the leaf spring (B) are engaged with the ear piece receiving long holes (44) of the instrument body (A), there is no risk of unintentional shaking. , The locking claw (37) of the leaf spring (B)
Can be accurately received and locked in the receiving recess (45).

Further, the locking claws (37) are installed on the narrow elastic claws (36) extending upward from the mounting plate portion (33) of the leaf spring (B), and further project inwardly in a wedge shape. Since it is raised, the engaging and disengaging action can be smoothly and stably performed when selectively engaging with the claw receiving recess (45) of the instrument body (A). At that time, the wedge-shaped bending angle (α) is about 9
If it is set to 0 degree, it can be said that it is more advantageous because both the ascending and descending actions of the leaf spring (B) can be performed by the uniform operating force.

<Modified Embodiment> The following partial modifications can be added to the above-described configuration of the basic embodiment shown in FIGS.

That is, first, a pair of left and right ear pieces (35) for preventing the leaf spring (B) itself are bent inward from the mounting plate portion (33) and the receiving elongated hole (44) is also adapted to this. As a pair of left and right, an opening was formed on the body surface (11) of the instrument body (A).
Either one of the ear piece (35) and the receiving slot (44) may be omitted, and the arrangement position thereof can be changed.

Further, as is apparent from the modified embodiment of FIG. 13, the steady rest raising / lowering guide groove (46) of the leaf spring (B), which replaces the ear piece receiving elongated hole (44), is provided in the instrument body (A). The pair of left and right ear pieces (35) may be omitted by arranging them in line on the body surface (11) and fitting the mounting plate portion (33) of the leaf spring (B) inside thereof. Instead of omitting the installation of the binaural pieces (35), the whole shaft of the mounting shaft (42) or only the neck portion is formed into a square shaft form, and the shaft receiving length opened to the body surface (11) of the instrument body (A). Hole
It is conceivable to fit it to (43) so that it cannot rotate.

In the basic embodiment shown in FIGS. 1 to 12, the mounting plate portion of the leaf spring (B)
The elastic piece (36) is continuously and integrally extended from (33) upward, but as long as the locking claw (37) is installed on the elastic piece (36),
As suggested from another modified embodiment of FIG. 14, the elastic piece (36) is formed separately from the mounting plate portion (33), and the mounting shaft (42) is also used as the mounting portion. It may be integrated with the plate portion (33) in a backing state. In that case, it is effective to maintain the steady state by interposing the elastic piece (36) between the both ear pieces (35).

Further, as also suggested from the figure, the receiving recess (45) of the locking claw (37) is also replaced with the through opening form in the above-mentioned basic embodiment, and the body surface (11) of the instrument body (A) is replaced. The groove may be formed by cutting and raising the body surface (11).

Further, in any of the above-described embodiments, the locking claw (37) and the ear piece (35) are installed in the leaf spring (B), and the claw receiving recess is formed.
(45) and the long hole for receiving the ear piece (44) are attached to the body surface (1) of the instrument body (A).
Although it is formed in 1), the locking claw (37) and the ear piece (35) are conversely removed from the body surface (11) of the instrument body (A) as long as they are in a male-female relationship in which they are locked. It does not matter if the plate spring (B) is bent and raised in the direction and the claw receiving recess (45) and the ear piece receiving elongated hole (44) are formed in the leaf spring (B). The number of the locking claws (37) is not limited to one, but can be increased to two or more.

Since the other constructions of the modified embodiment are substantially the same as those of the basic embodiment, the first embodiment is shown in FIGS.
Only the corresponding symbols to those in FIG. 12 are filled in, and the detailed explanation is omitted.

<Effects of the Invention> As described above, according to the present invention, the mounting plate portion (33) of the "Le" shaped leaf spring (B) is almost attached to the body surface (11) of the instrument body (A) by the mounting shaft (42). Is attached, and the lower end position of the mounting plate (33) is used as the bending fulcrum (z),
The protruding wing plate part (38) of the leaf spring (B) that continuously protrudes laterally outward is bent in a direction in which it contacts the body surface (11) of the instrument body (A), and is flattened, while also being embedded in the ceiling surface. In the ceiling-embedded luminaire, which is pushed into (G) and the fixture body (A) is locked and fixed to the ceiling material (18) by the restoring elastic force of the overhanging blade portion (38). ), The receiving elongated hole (43) of the mounting shaft (42) is formed so as to penetrate through the body surface (11) in the form of an elongated opening in the vertical direction, and at the same time as the mounting plate portion (33) of the leaf spring (B). An engaging claw (37) is provided on one of the body surface (11) of the instrument body (A), and the receiving recess (45) of the engaging claw (37) is provided on the other side in several steps up and down. The leaf springs (B) are arranged in an array, and the leaf springs (B) are manually forcibly moved up and down so that the locking claws (37) are selectively locked with the plurality of receiving recesses (45). (B) Overhang Tsubasaban part
Since the (38) is set so that it can be locked to the ceiling material (18) under a uniform restoring elastic pressure at all times regardless of the thickness change of the ceiling material (18), the conventional method described at the beginning It has the effect of being able to reliably solve the technical problems, and keeping the lighting fixtures in a stable and reliable installation state, even if there are variations in the thickness of the ceiling material (18) and variations in the diameter of the embedded hole (G).

Further, if the structure according to claim 2 is adopted, the leaf spring (B) is attached to the instrument body (A) by a single attaching shaft (42) even if the leaf spring (B) is used. ) Is surely prevented, and the ear piece receiving elongated hole (44) is elongated in the vertical direction in parallel with the receiving elongated hole (43) of the mounting shaft (42). In addition, there is also an effect that the leaf spring (B) can be raised and lowered extremely stably and smoothly.

Further, if the configuration of claim 3 is adopted, while utilizing the conventional leaf spring (b) as shown in FIG. 15 as it is,
This can be easily finished as a special leaf spring (B) with a locking claw (37) according to the present invention, and in that sense, it can be said to be practical.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing a mounting state of a ceiling-embedded lighting fixture according to the present invention, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. 4 and 5 are sectional views taken along lines 4-4 and 5-5 in FIG. 3, and FIG. 6 is an exploded perspective view showing the mounting relationship of the leaf springs with respect to the instrument body. 10 to 10 are side views, front views, rear views and plan views showing extracted leaf springs, FIG. 11 is an enlarged sectional view taken along the line 11-11 of FIG. 8, and FIG. FIG. 13 is a side sectional view showing a state in which the fixture is attached to the ceiling material, FIGS. 13 and 14 are exploded perspective views showing various modified embodiments of the present invention corresponding to FIG. 6, and FIG. 15 is a perspective view showing a conventional leaf spring. 16 and 17 are partial side cross-sectional views showing a conventional device attachment state corresponding to FIGS. 2 and 12 of the present invention. (11) …… Body surface (18) …… Ceiling material (33) …… Mounting plate (35) …… Ear piece (36) …… Elastic piece (37) …… Locking claw (38) …… Overhang Vane (42) …… Mounting shaft (43) …… Shaft receiving slot (44) …… Ear piece receiving slot (45) …… Claw receiving recess (A) …… Instrument body (B) …… Leaf spring (G) …… Embedded hole (z) …… Bending fulcrum

Claims (3)

[Claims] 1. A mounting plate portion (33) of a substantially "L" shaped leaf spring (B) is attached to a body surface (11) of an instrument body (A) by a mounting shaft (42), and the mounting plate portion (33) is attached. The lower end position of 33) is the bending fulcrum (z),
The protruding wing plate part (38) of the leaf spring (B) that continuously protrudes laterally outward is bent in the direction in which it contacts the body surface (11) of the instrument body (A), and is flattened, while embedding a hole in the ceiling surface. In the ceiling-embedded luminaire in which the fixture body (A) is locked and fixed to the ceiling material (18) by pushing it into (G) and the restoring elastic force of the overhanging blade part (38), ), The receiving elongated hole (43) of the mounting shaft (42) is formed so as to penetrate through the body surface (11) of the mounting shaft (42) in the form of an elongated opening in the vertical direction, and the mounting plate portion (33) of the leaf spring (B) is formed. A locking claw (37) is provided on either one of the body surface (11) of the device body (A), and the receiving recess (45) of the locking claw (37) is formed on the other side in several steps up and down. The leaf springs (B) are arranged in an array, and the leaf springs (B) are manually forcibly moved up and down so that the locking claws (37) selectively lock with the plurality of receiving recesses (45). (B) Overhang Tsubasaban part
(38) The ceiling-embedded lighting characterized in that the ceiling material (18) is set so that it can be locked to the ceiling material (18) under a constant restoring elastic pressure regardless of the thickness change of the ceiling material (18). Equipment mounting device. 2. A steadying ear provided separately from the locking claw (37) on one of the mounting plate portion (33) of the leaf spring (B) and the body surface (11) of the instrument body (A). Bend out the piece (35), and at the other end, insert the receiving slot (44) of the ear piece (35) into the mounting shaft.
2. The mounting device for a ceiling-embedded lighting fixture according to claim 1, wherein the device is arranged in parallel with the receiving elongated holes (43) of the (42). 3. A mounting shaft for a mounting plate portion (33) of a leaf spring (B).
The elastic plate (36) is combined with and integrated with a separate elastic piece (36) under the condition that the mounting plate part (33) is extended upward while also functioning as (42). Attach the locking claw (37) protruding to the
2. The ceiling-embedded illumination according to claim 1, wherein a plurality of receiving recesses (45) formed in the body surface (11) of the appliance body (A) are set so as to be selectively locked. Equipment mounting device.