JPH0531776Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to a mounting bracket for a ceiling-embedded lighting fixture, and is particularly an improved version of the fixture that is made entirely of a single sheet of metal plate spring material.

<Prior art and its problems> The simplest form of metal fittings for mounting ceiling-embedded lighting equipment such as downlights is generally the one shown in FIGS. 14 and 15.

However, due to its structure, this first consists of a metal fitting body 1 made of a plate spring material and a wing nut 3 that is screwed onto the screw shaft 2 of the metal fitting body 1, and the wing nut 3 must be rotated. Since the fitting body 1 is fixed to the body wall surface of the lighting fixture body A, the overall assembly is complicated, leading to high costs, and it is difficult to perform the installation work on the fixture body A. . This is because the operating hand must be inserted into the instrument body A to rotate the wing nut 3.

Second, the slide guide piece 4 formed with a narrow notch in the metal fitting main body 1 and the screw shaft 2 planted from the metal fitting main body 1 are inserted into the slide guide elongated hole 5 of the instrument main body A. The vertical distance between the slide guide piece 4 and the screw shaft 2 is short, and both of them are biased towards the top of the metal fitting body 1 and are arranged in a concentrated manner, so that the metal fitting body 1 is When performing a sliding operation or after being fixed to the instrument main body A, the metal fitting main body 1 tends to swing laterally, especially from the lower end side.

Thirdly, when the metal fitting body 1 is made of a plate spring, it has a dogleg shape when viewed from the side with its middle part protruding inward, and its middle bent part forms the surface of the body wall of the device body A. The metal fitting main body 1 is in a straight line with no curve at all, and the metal fitting main body 1 is separate and independent from the wing nut 3 that fixes it.
The repulsive spring pressure that should act to push up the instrument body A during use will not be accumulated in the metal fitting body 1 at all.

The metal fitting body 1 is tightened by tightening a separate wing nut 3 on its screw shaft 2, so to speak.
It is fixed at a point, and the fixed state is so-called rigid, which destroys the original elasticity of the leaf spring material, so it cannot effectively absorb natural external forces such as vibrations and shocks. If this is not possible, wobbling or misalignment will easily occur when the instrument body A is installed.

Fourthly, since the metal fitting body 1 is in the upright state of the plate spring material, and its lower end is branched as a sharp toe 6, the metal fitting body 1 is pushed open from the intermediate bent portion of the dogleg shape. It is easy to become
When the ceiling surface M is made of a soft material such as gypsum board, the ceiling surface M is
This will impede the stability of the fixed state.

<A means to solve a problem.

The present invention aims to fundamentally solve these problems, and for this purpose, the structure includes a slide guide elongated hole with a narrow opening width that extends in the vertical direction, and a slide guide hole that is continuous with the upper end of the guide elongated hole. As a mounting bracket used to embed the lighting fixture body, which has a wide opening width in the body wall surface into the ceiling surface, the opening width is wider than the opening width of the slide guide elongated hole.
Consists of a single piece of metal plate spring material punched into a basic rectangular outline that is elongated in the vertical direction and has a constant band width narrower than the opening width of the metal fittings insertion/extraction hole. The approximately middle band portion of the above-mentioned device body is bent into an obtuse-angled approximately dogleg shape when viewed from the side and extends outward as an abutment plate that comes into contact with the body wall surface of the instrument body, and the band portion above the abutment plate is bent. , as an operation plate for sliding operation in the vertical direction by applying the fingertips, it is bent into an almost square shape in side view that extends continuously inward from the boundary bend line with the contact plate, and The lower band part of the contact plate is used as a skirt plate to lock onto the ceiling surface, and is curved in a smooth arc concave shape when viewed from the side from the boundary bend line with the contact plate, while continuing outward. and by bending the protruding tips downward as a pair of left and right arched tongues when viewed from the side, the arcuate edge portions of both tongues can be fixed to the ceiling surface, The boundary bending line between the abutment plate and the operation plate and the boundary bending line between the abutment plate and the skirt plate are assumed to be in a relationship state in which the former is located in the upper stage and the latter is located in the lower stage; A ridge line that locks onto the body wall surface of the instrument body from the outside, and a mid-fold bend line that projects outward from the middle part of the square-shaped operation plate, facing the mutual interruption position of both boundary bend lines. , a total of three bent ridge lines with height differences are defined as ridge lines that lock onto the body wall surface of the instrument body from the opposite direction from the inside, so that the body wall surface of the instrument body can be clamped elastically; By making back-to-back U-shaped notches near the boundary bending position between the abutting plate and the operation plate, a narrow slide guide piece that can be inserted into the long slide guide hole of the instrument body is defined, and the above-mentioned By carving an inverted U-shaped cut line approximately in the middle of the skirt plate, a narrow steady rest piece can be inserted from the skirt plate into the long slide guide hole of the instrument body based on the cut line. By bending the free tip of the steady rest piece at right angles as a warpage prevention part wider than the steady rest piece itself, the above-mentioned piece is designed to be able to lock onto the body wall surface of the instrument body from the inside. When in use, both tongue pieces of the skirt plate are locked to the ceiling surface by inserting the upper and lower pairs of the slide guide piece and the steady rest piece into the slide guide elongated hole of the device body in an engaged state and pulling them down. , is characterized in that the repulsive spring pressure that should scoop up and press the instrument main body is automatically accumulated on the skirt plate having a concave arc shape.

<Example> Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated example.
is a rectangular or cylindrical lighting fixture body, and a Mogul socket 11 for receiving a light bulb 10 is fixedly installed on its upper wall surface. 12 is a large number of heat radiation holes opened in the body wall surface of the appliance body A; 13;
Similarly, slide guide elongated holes are arranged as a pair of openings facing the body wall surface, and extend in a long and narrow direction along the vertical direction of the instrument main body A.

Reference numeral 14 denotes a metal fitting insertion/removal hole that is continuously opened to the upper end of each slide guide elongated hole 13, and has an opening width S2 wider than the opening width S1 of the slide guide elongated hole 13, and has an opening width S2 wider than the opening width S1 of the slide guide elongated hole 13. The boundary step portion is provided with an arcuate roundness, so that a mounting fitting, which will be described later, can be slid smoothly. Reference numeral 15 denotes a decorative flange that extends horizontally and outward continuously from the lower end of the body wall surface of the appliance body A, and when used, the appliance body A is inserted into the embedding opening 16 in the ceiling surface M from below and set. In this state, the opening edge of the embedding port 16 is coated.

The mounting bracket B for recessing the lighting fixture body A into the ceiling surface M is a stainless steel plate (SUS
-301), etc., is punched out into the flattened shape shown in Figure 3, and then bent to form a three-dimensional shape as shown in Figures 4 to 10, resulting in a product. It is finished.

That is, as shown in FIG. 3, the mounting bracket B is narrower than the opening width S2 of the bracket insertion/removal hole 14 in the lighting fixture body A, and is narrower than the slide guide elongated hole 1.
An elongated overall nearly rectangular developed contour form along the vertical direction, with a constant band width W wider than the opening width S1 of No. 3, and a constant length L corresponding to about 5 to 6 times the band width W. From the upper position to the lower position, there is an operation plate 17 that slides by applying the fingertip, an abutment plate 18 that comes into contact with the body wall surface of the instrument body A, and an abutment plate 18 that comes into contact with the ceiling surface M. It has a total of three parts, including the skirt plate 19 that acts as a stopper, and is functionally divided so to speak.

First, the abutting plate 18 is bent from a horizontal intermediate bending line a along the width direction of the mounting bracket B itself into a substantially doglegged shape in side view that projects outward.
The bending angle α is preferably an obtuse angle of about 130 to 160 degrees. 20 is the operation plate 17 and the contact plate 18
A pair of left and right recesses are cut out in a so-called U-shape back to back and are located at the upper and lower boundaries between the two recesses 20, and the space between the two recesses 20 is left as a slide guide piece 21. There is. The slide guide piece 21 is inserted into the slide guide elongated hole 13 of the instrument body A, and is therefore formed to have a constant width W1 that is slightly narrower than the opening width S1 of the slide guide elongated hole 13.

Further, b is the boundary bending line between the abutment plate 18 and the operation plate 17, from which the operation plate 17 is connected to the abutment plate 1.
8, it is bent inward under an obtuse crossing angle β, preferably about 115 degrees. c, d
is in a horizontal state parallel to its boundary bend line b,
These are the lower half-way bend line and the upper half-way bend line given to the operation plate 17, and the inwardly bent operation plate 17 continues to form an acute angle of about 45 degrees from the lower half-way bend line c. By being bent outward under a crossing angle γ, and then continuously bent inward in the opposite direction from the upper half-way bending line d under an obtuse crossing angle θ of about 105 degrees, The overall shape is almost square-shaped when viewed from the side.

Then, the boundary bending line b with the contact plate 18
and the lower half-way bend line c is defined as the fingertip contact surface 22 of the operating hand when sliding the mounting bracket B downward, and the upper half-way bend line d and the operation plate 17 The space between the top end and the upper end is similarly set as a fingertip contact surface 23 of the operator's hand when sliding the mounting bracket B upward in the opposite direction. It is also conceivable to cover the surfaces of such fingertip contact surfaces 22 and 23 with a soft cover (not shown) in order to prevent pain in the fingertips.

e is a pair of left and right inclined bending lines given to the corners of the abutting plate 18 at the boundary between the abutting plate 18 and the operation plate 17; The upper corner of the abutment plate 18 is shaped as a claw piece 24 having a triangular shape in side view so as to engage the body wall surface of the instrument body A.

f is the boundary bending line between the abutting plate 18 and the skirt plate 19, from which the skirt plate 19 curves in a smooth arc concave shape, continuously protruding outward; Due to its curved shape, when the mounting bracket B (described later) is used for pulling down, the skirt plate 19 smoothly bends and deforms, and stably locks onto the ceiling surface M. ), and can be biased to scoop up the instrument body A by itself. Reference numeral 25 denotes an arcuate notch provided at the protruding tip of the skirt plate 19, which serves to prevent the skirt plate 19 from hitting the ceiling surface M. Similarly, slanted bending lines g are provided as a pair on the left and right corners of the skirt plate 19, and the end corners bent downward toward the ceiling surface M form the left and right corners that form an arch in side view. The pair of tongue pieces 26 are configured to lock onto the ceiling surface M without hitting it. Even if the tongue pieces 26 are not thrust, they will engage with the ceiling surface M at the bent edges (so-called punched ends of leaf spring goods) that curve into an arc, so that the ceiling surface There is no risk of sliding against M, and since the bent edges of both tongues 26 form an arcuate surface, when used for pulling down as described later,
Even if the degree of deflection of the skirt plate 19 changes,
It also ensures stable locking action with the ceiling surface M at all times. The tongue piece 26 is shaped based on this purpose.

Furthermore, the reference character h denotes a long, thin, inverted U-shaped cut line engraved from near the boundary between the abutment plate 18 and the skirt plate 19 to the middle position of the skirt plate 19, and the anti-vibration piece 27 defined by this is bent out from the skirt plate 19 toward the ceiling surface M. Like the slide guide piece 21, this anti-vibration piece 27 is inserted into the slide guide long hole 13 of the device body A, and therefore its constant width W2 is also formed slightly narrower than the opening width S1 of the slide guide long hole 13. 28 denotes a warp prevention portion bent at a right angle from the free tip of the anti-vibration piece 27, and by having a constant width W3 wider than the opening width S1 of the slide guide long hole 13,
It is engaged from the inside with the wall surface of the body A of the instrument so as not to slip out of the slide guide long hole 13.

As is clear from the usage condition shown in FIGS. 11 to 13, the mounting bracket B has a pair of right and left claws 24 on the abutment plate 18 located at the upper stage, and a boundary between the abutment plate 18 and the skirt plate 19. In the relational state in which the bending line f is located at the lower stage, both of them act to lock the body wall surface of the instrument body A from the outside, and at the same time, the upper half-way bending line d of the operation plate 17 faces the middle position, and the same instrument body It is designed to lock onto the body wall surface of the main body A from the opposite side, and is configured to elastically clamp the body wall surface of the instrument body A at three locations with a difference in height.

However, the bending of both claw pieces 24 is omitted, and instead of this, the boundary bending line b between the abutment plate 18 and the operation plate 17 can be locked to the body wall surface of the instrument body A from the outside. It's okay to be. In that case, by a total of three ridge lines that are parallel to the boundary bend line b and the above-mentioned both bend lines f and d and have a height difference,
After all, the body wall surface of the instrument body A is clamped elastically from both the inside and outside sides.

<Function> When setting the mounting bracket B configured as described above to the lighting fixture body A and embedding and fixing the fixture body A into the ceiling surface M, use the embedding opening 16 of the ceiling surface M. After fitting the main body A of the device inside, the operation is as follows.

That is, the abutment plate 18 and skirt plate 19 of the mounting bracket B are led out from the inside of the body wall surface of the instrument body A through the bracket insertion/extraction hole 14, and the slide guide piece 21 and steady rest piece 27 of the mounting bracket B are guided out.
are inserted into the slide guide elongated hole 13 in an engaged state, so to speak. Then, place the fingertip of the operator's hand inserted into the inside of the body wall surface against the fingertip contact surface 22 on the upper surface of the operation plate 17, and move the mounting bracket B along the slide guide elongated hole 13 in the direction of arrow D in FIG. As shown in FIG. 12, by performing a sliding operation such as strongly pulling down from above and stably locking both tongue pieces 26 at the protruding tip of the skirt plate 19 to the ceiling surface M as shown in FIG. It is fixedly installed so that it cannot fall.

In this way, the mounting bracket B is a single piece that is continuously bent from a single sheet of leaf spring material.
The abutment plate 18 has a substantially doglegged shape that does not make full contact with the body wall surface of the instrument body A and projects outward, and the abutment plate 18 and the operation plate 17 are connected to both claw pieces 24 or in place of the abutment plate 18 and the operation plate 17. Boundary bending line b and the contact plate 18
and the boundary bending line f between the skirt plate 19 and the skirt plate 19, while maintaining a relatively far vertical distance H1, engage the body wall surface of the instrument body A from the outside, and at the same time, both At the middle position facing between them, the upper part-way bending line d of the operation plate 17 engages the body wall surface of the instrument body A from the opposite direction, so even if the above-mentioned pull-down operation hand is released, the instrument body remains intact. There is no risk of relative misalignment between the barrel wall surface of A and the mounting bracket B itself, and therefore, a serrated notch for receiving the bracket is machined around the slide guide elongated hole 13 in the instrument body A. The instrument main body A can be held firmly and stably without having to move.

Moreover, in the installed state, the mounting bracket B is still made of a single plate spring material, and in particular, the skirt plate 19 has a smooth concave shape that is continuous with the dogleg-shaped abutment plate 18 and extends diagonally downward. Since the skirt plate 19 is extended outwardly, it smoothly bends and deforms when subjected to the above-mentioned pull-down operation force, and all of the pull-down operation force is accumulated as restorative repulsive spring pressure. The device body A is automatically maintained in a biased state in which it is pushed up.

As a result, it is able to sufficiently withstand the load of the appliance body A, and even the relatively large appliance body A is always stable and robust without creating an unsightly gap between the decorative flange 15 and the ceiling surface M. This means that it can be maintained fixed, and even if it is subjected to natural external forces such as vibrations and shocks when the appliance main body A is installed embedded in the ceiling surface M, it can automatically absorb these forces effectively.

Further, the mounting bracket B is engaged with the slide guide elongated hole 13 on the body wall surface by the slide guide piece 21 at its upper position, and is also engaged with the slide guide elongated hole 13 on the body wall surface by the steady rest piece 27 of the skirt plate 19 at the lower position. 13, and the vertical distance H2 between them is quite long, so that not only does the accidental sliding action occur in the vertical direction as described above, but also
The runout along the left and right directions is also reliably prevented and regulated, making it extremely stable.

Furthermore, at the free end of the steady rest piece 27 of the skirt plate 19, a wide anti-warping part 28 that can lock onto the trunk wall surface from inside is also bent, so that it is not tensioned in the concave shape described above. Skirt board 1
It is possible to effectively prevent the phenomenon in which the tongue piece 9 floats up and separates from the ceiling surface M, and the phenomenon that the tongue piece 26 bends back from its overhanging tip can be effectively prevented. This means that a locking action can be performed.

The mounting bracket B is illuminated by placing the fingertip of the operating hand from below on the fingertip contacting surface 23 on the lower surface of the operating panel 17 and sliding it up as shown by the arrow U in FIG. Of course, it is also possible to remove it from the instrument body A.

<Effects of the invention> As described above, in the present invention, the slide guide elongated hole 13 with a narrow opening width S1 extending in the vertical direction
and a mounting bracket B used to embed and install the lighting fixture body A into the ceiling surface M, which has a wide metal fitting insertion/extraction hole 14 with a wide opening width S2 continuous with the upper end of the guide elongated hole 13 in the body wall surface. As such, it has a constant band width W that is wider than the opening width S1 of the slide guide elongated hole 13 and narrower than the opening width S2 of the metal fittings insertion/removal hole 14, and has a basic rectangular outline shape that is elongated in the vertical direction. A side surface projecting outward, which is made of a piece of metal plate spring material that has been cut out, and whose substantially middle zone in the vertical direction is used as a contact plate 18 that acts in contact with the body wall surface of the device main body A. It is bent into a substantially dogleg shape with a visual obtuse angle α, and the upper band of the abutment plate 18 is used as an operation plate 17 for vertically sliding operation by applying a fingertip to the boundary with the abutment plate 18. While it is bent into an almost square shape in side view that continuously extends inward from the bending line b, the band portion below the abutment plate 18 is also used as a skirt plate 19 to lock onto the ceiling surface M. , from the boundary bending line f with the abutment plate 18, curved into a smooth arcuate concave shape when viewed from the side, and continuously protrude outward, and the tips of the protrusion form a pair of left and right arches when viewed from the side. By bending the tongue piece 26 downward,
The arcuate edge portions of both tongue pieces 26 are defined so as to be able to engage the ceiling surface M, and the boundary bending line b between the abutment plate 18 and the operation plate 17 as well as the abutment plate 18 and the skirt plate 19 are The boundary bending line f is defined as a relational state in which the former is located in the upper stage and the latter is located in the lower stage, and both are ridge lines that act to lock onto the body wall surface of the instrument body A from the outside, and the above-mentioned square shape The half-way bending line d extending outward from the middle of the operation plate 17 is locked to the body wall surface of the instrument body A from the opposite inner side while facing the middle position of both boundary bending lines b and f. As acting ridgelines, there are a total of three bending ridgelines b with height differences,
d and f are determined so that the body wall surface of the instrument body A can be clamped elastically, and by cutting back-to-back U-shapes near the boundary bending position between the abutting plate 18 and the operation plate 17. , a narrow slide guide piece 21 that can be inserted into the slide guide elongated hole 13 of the instrument body A is defined, and a substantially inverted U-shaped cut line h is carved in the substantially middle position of the skirt plate 19. By doing so,
Based on the cut line h, a narrow steady rest piece 27 that can also be inserted into the slide guide long hole 13 of the instrument body A is bent out from the skirt plate 19, and the free tip of the bent steady rest piece 27 is wider than the steady rest piece 27 itself. By bending the anti-warping portion 28 at right angles, the upper and lower pair of the slide guide piece 21 and the steady rest piece 27 are fixed to the body wall surface of the instrument main body A from the inside. When in use, both tongues 26 of the skirt plate 19 are locked to the ceiling surface M by inserting them into the slide guide elongated holes 13 of the main body A in an engaged state and pulling them down, the skirt plate having an arcuate concave shape 19 is set so that the repulsive spring pressure that should scoop up and press the device body A is automatically accumulated. It has the effect of improving all technical problems.

That is, since the mounting bracket B of the present invention is a single item made of one continuous metal plate spring material as a whole,
Including the prior art shown in Figures 14 and 15 mentioned at the beginning,
No. 1 of Utility Model Publication No. 110925/1983 and Japanese Patent Application Publication No. 107201/1983
Unlike the conventional technique shown in FIGS. 1 to 6, which is assembled from two parts, mass production can be easily carried out using an automatic processing machine such as a press mold.

Moreover, the mounting bracket B is integrally equipped with an operation plate 17 on which the fingertip of the operator's hand rests, so that the mounting bracket B itself can be simply pulled down along the slide guide elongated hole 13 of the lighting fixture body A. This is sufficient, and there is no need to tighten the wing nut 3 or rotate the levers while pressing the mounting bracket against the ceiling surface as in the above-mentioned conventional technology, so the handling efficiency is significantly improved. Excellent.

In addition, when the mounting bracket B of the present invention is pulled down along the slide guide elongated hole 13 of the lighting fixture body A and is once attached to the body wall surface, the abutting plate will appear as shown in Fig. 12. 18 and operation board 1
7 and the boundary bending line f between the contact plate 18 and the skirt plate 19 maintain a constant distance H1 between the upper tongues, both of them are connected to the instrument body A. A halfway bending line d that locks onto the body wall surface from the outside and also projects outward from the middle part of the operation plate 17 faces the middle position of both boundary bending lines b and f, Similarly, a locking action is applied to the body wall surface of the instrument body A from the opposite direction, and the body wall surface of the instrument body A is elastically clamped by a total of three bending ridge lines b, d, and f having height differences. In addition, at this time, the contact plate 18 does not fully contact the body wall surface of the instrument body A, but is bent at an approximately dogleg-shaped acute angle α projecting outward from the intermediate bending line a. Therefore, there is no risk of the mounting bracket B shifting its position relative to the instrument body A, such as by accidentally sliding vertically, so that the mounting bracket B can be stably fixed and held on the instrument body A. becomes.

In this regard, in the conventional technology in which the operation plate 17 and the contact plate 18 are assembled from two parts, the above-mentioned effect cannot be achieved.
Precisely because the mounting bracket B itself is made of one continuous sheet of metal plate spring material as in the present invention, together with its overall elasticity, the above three bending ridge lines b, d,
The body wall surface of the instrument body A can be pressed into a so-called tied state from both the inside and outside so that the body wall surface of the instrument body A is bitten into the body wall surface of the instrument body A. There is no need to process and form a notch for receiving metal fittings on the wall surface.

Furthermore, in the case of the present invention, as a result of being able to stably hold the mounting bracket B on the body wall surface of the instrument body A without fear of displacement as described above, the repulsion spring automatically and effectively acts against the skirt plate 19. It also means that pressure (bending stress) can be accumulated.

That is, in the present invention, since the skirt plate 19 is formed to continuously project outward from the boundary bend line f with the abutment plate 18 in a smooth circular concave shape when viewed from the side, the skirt plate 19 can be mounted as described above. When the metal fitting B is pulled down, the skirt plate 19 as a whole is smoothly bent and deformed, and the pulling down operation force scoops up and presses the instrument body A along its body wall surface, which is rational as a repulsive spring pressure. will be accumulated.

In that case, at a position above the skirt plate 19, the mounting bracket B is fixedly held without fear of shifting as described above, so the rebound spring pressure is effectively stored without loss. .

As a result, even a large instrument body A can be used against its weight without any problems, and there is no risk of the instrument body A falling off, and even if it is subjected to vibrations or shocks during use. It can be absorbed effectively on its own. In other words, because the mounting bracket B of the present invention is a single item made entirely of one continuous sheet of metal plate spring material, the above-mentioned components are organically and synergistically combined, and this is the only way to achieve the desired position. It can be said that the desired effect can be achieved.

Further, the skirt plate 19 has a concave arc shape as described above, and the boundary bending line f with the contact plate 18 is
Since it continuously protrudes outward from the top, it always acts to lock onto the ceiling surface M in a stable manner, and there is no chance of it sticking into the ceiling surface M. The appliance main body A can always be installed on the ceiling surface M in a stable state without being influenced by changes in the hardness or softness of the ceiling surface M.

Even if the skirt plate 19 does not stick to the ceiling surface M, a pair of left and right tongue pieces 26 having an arched shape in side view are bent downward at the overhanging tip of the skirt plate 19, so both tongue pieces 26 are bent. At the raised edge part (the so-called punching end surface of the leaf spring material itself),
It will engage with the ceiling surface M, and will therefore be securely locked and fixed without any risk of slipping.

In that case, the phenomenon of warpage from the overhanging tip due to the skirt plate 19 being overhanging in the form of an arcuate concave curve is also caused by the warping prevention portion 28 bent up from the free tip of the steady rest piece 27. ,
This is automatically and reliably prevented, and there is no risk of deteriorating the state of engagement with the ceiling surface M.

Also, since the skirt plate 19 is extended in a concave arc shape, even if its degree of flexural deformation changes, or even if the ceiling surface M changes in hardness or softness, both tongue pieces 26 will maintain an arched shape in side view. present,
Since the bent edge portion is formed in an arcuate shape, it can effectively follow changes in the bending edge portion by itself, and can maintain a stable state of engagement with the ceiling surface M at all times.

In this regard, Nos. 7 to 14 of the above-mentioned Japanese Patent Application Laid-Open No. 60-107201
Although the mounting bracket shown in the figure is made of a single piece of spring material, it is bent into a rigid U-shaped box as a whole. ) are not accumulated at all.

Furthermore, the mounting bracket of Utility Model Application Publication No. 60-110925 is assembled from two parts as described above, and in this case, the leg portion, which corresponds to the skirt plate 19 of the present invention, has a straight line shape when viewed from the side. Because it is stretched out and overhangs, so to speak,
A serrated notch must be machined into the barrel wall of the instrument body to receive it. In other words, the leg only performs a tensioning action, and therefore cannot rationally absorb vibrations or shocks, and will inevitably become unlatched to the notch. Become.

In addition, when the weight of the device body or an excessive pushing down force is applied, the legs in the fully extended state will naturally curve outward into a convex shape and become improperly curved. The entire mounting bracket (one continuous piece) without the need for notches.
As described above, the accumulation state of the repulsion spring pressure and the total 3
It is absolutely impossible to ensure the clamping state by the boundary bending lines b, d, and f.

Furthermore, in the case of the present invention, a swing stopper piece 27 is also extended from the skirt plate 19 so as to be able to be inserted through the slide guide elongated hole 13 of the instrument main body A, in other words, a pair of slide guides in a vertical positional relationship. A piece 21 is cut out near the boundary between the contact plate 18 and the operation plate 17, and both pieces 21, 2
7 is inserted into the slide guide elongated hole 13 of the instrument body A in an engaged state, so that the sliding operation of the mounting bracket B with respect to the instrument body A can be performed extremely smoothly and accurately.
This also has the effect of reliably preventing the mounting bracket B from swinging laterally with respect to the instrument body A.

In particular, as explained based on the illustrated embodiment, the position near the boundary between the abutting plate 18 and the operation plate 17 is bent into a pair of left and right claw pieces 24 that are triangular in side view. If the device is set to be locked to the body wall surface of the device body A from the outside, the mounting condition of the mounting bracket B to the device body A is as follows.
Furthermore, it is extremely useful in that it can be made even more stable and robust.

Further, the protruding tip of the skirt plate 19 is bent up into a pair of left and right tongue pieces 26 which are arched in side view,
If the arcuate edges of both tongues 26 are engaged with the ceiling surface M, even if the ceiling surface M is made of a soft material such as gypsum board, the tongues 26 will not be pushed down as if sinking. Therefore, it can be stably and properly locked and fixed to the ceiling surface M.

In addition, the free tip of the steady rest piece 27 cut up from the skirt plate 19 is attached to the steady rest piece 2.
By bending it to form a warpage prevention part 28 having a constant width W3 wider than the constant width W2 of 7 itself, it is locked from the inside to the body wall surface of the instrument main body A, and is set so as not to slip out from the slide guide elongated hole 13. This will surely prevent a phenomenon in which the skirt plate 19 is lifted from the ceiling surface M or warped due to excessive pushing down of the mounting bracket B relative to the appliance body A.

Furthermore, the operation plate 17 is bent into a substantially square shape when viewed from the side, and the upper surface thereof serves as a fingertip contact surface 22 when the mounting bracket B is pushed down and slid, and the lower surface is similarly used as a fingertip contact surface 22 when the mounting bracket B is pressed down and slid. 23, the operation panel 17 can be stably and painlessly placed with the fingertips of the operator's hand and slid in the vertical direction, and the operation can be performed using the fingertips inserted into the inside of the instrument body A. Because of this, the operability can be significantly improved compared to the case where a separate wing nut or the like is rotated. In any case, it can be said that it is a practical idea that is effective in mass production as a product and has excellent workability at construction sites.

[Brief explanation of the drawing]

Figures 1 and 2 are an overall schematic slope view and cross-sectional view showing the present invention in use, Figure 3 is a developed plan view showing the mounting hardware, and Figure 4 shows the product in its folded three-dimensional state. 5 to 8 are the same front view, rear view, side view, and plan view of the mounting bracket, FIG. 9 is a sectional view taken along line 9-9 of FIG. 5, and FIG. 10 is a sectional view of FIG. 7. 10-10 line sectional view, Figures 11 and 12 are both side views showing the working state of the mounting bracket, Figure 13 is a rear view of Figure 12, and Figure 14 is a slope view showing the conventional mounting bracket. FIG. 15 is a side view showing the operating state of the metal fitting. A...Lighting equipment body, B...Mounting bracket, M...
Ceiling surface, 13... Slide guide long hole, 14...
Metal fittings insertion/extraction hole, 16...Embedded port, 17...Operation plate, 18...Abutting plate, 19...Skirt plate, 2
0...Concave notch, 21...Slide guide piece, 22,
23... Fingertip resting surface, 24... Nail piece, 25...
...notch, 26... tongue piece, 27... steady rest piece, 2
8... Warp prevention part, a, b, c, d, e, f, g
...Bending line, h... Cutting line.

Claims (1)

[Claims for Utility Model Registration] 1. A slide guide elongated hole 13 with a narrow opening width S1 extending along the vertical direction, and the guide elongated hole 1
As the mounting bracket B used to embed the lighting fixture body A, which has a wide metal fitting insertion/extraction hole 14 with a continuous opening width S2 in the upper end of the body wall, into the ceiling surface M, the slide guide length mentioned above is used. A piece of metal punched into a basic rectangular outline elongated in the vertical direction, with a constant band width W wider than the opening width S1 of the hole 13 and narrower than the opening width S2 of the fitting insertion/extraction hole 14. It is made of a plate spring material, and a substantially intermediate zone in the vertical direction of the plate spring material is used as a contact plate 18 that comes into contact with the body wall surface of the instrument main body A, and is made of a substantially obtuse angle α in side view that projects outward. The upper part of the abutment plate 18 is used as an operation plate 17 for vertically sliding operation by placing a fingertip on the upper part of the abutment plate 18. A skirt plate 19 is bent into a substantially square shape in a side view that extends continuously, and also has a lower band portion than the abutting plate 18 to lock onto the ceiling surface M.
As seen from the boundary bending line f with the abutment plate 18, it is curved into a smooth circular arc concave shape when viewed from the side, and extends outward continuously, and the tips of the overhang form a pair of left and right arches when viewed from the side. By bending the tongue pieces 26 downward, the arcuate edge portions of both tongue pieces 26 can be fixed to the ceiling surface M, and the boundary bend line between the contact plate 18 and the operation plate 17 is defined. b as well as the contact plate 18 and skirt plate 19
The boundary bending line f between the two is defined as a relationship state in which the former is located in the upper stage and the latter is located in the lower stage, and both are ridge lines that act to lock onto the body wall surface of the instrument body A from the outside, and the above-mentioned M The halfway bending line d that projects outward from the middle of the mold operation plate 17 is engaged from the opposite inner side to the body wall surface of the instrument body A while facing the mutual interruption position of both boundary bending lines b and f. A total of three bending ridgelines b with height differences are used as the ridgelines that act as a stopper.
d and f are determined so that the body wall surface of the instrument body A can be clamped elastically, and by cutting back-to-back U-shapes near the boundary bending position between the abutting plate 18 and the operation plate 17. , a narrow slide guide piece 21 that can be inserted into the slide guide long hole 13 of the instrument body A;
At the same time, a substantially inverted U-shaped cut line h is carved in the substantially middle position of the skirt plate 19, so that the slide guide of the instrument body A can be guided from the skirt plate 19 based on the cut line h. By bending out the narrow steady rest piece 27 that can be inserted into the elongated hole 13, and bending the free end of the bent part at a right angle as a warpage prevention part 28 wider than the steady rest piece 27 itself, the device main body A is formed. The slide guide piece 21 and the steady rest piece 27 are designed so that they can be locked from the inside to the body wall surface of the slide guide piece 21 and the steady rest piece 27.
When in use, both tongue pieces 26 of the skirt plate 19 are locked to the ceiling surface M by inserting the upper and lower pairs of the upper and lower sides into the slide guide elongated holes 13 of the instrument body A in an engaged state and pulling them down. This mounting bracket for a ceiling-embedded lighting fixture is characterized in that the repulsion spring pressure is automatically accumulated to scoop up and press the fixture body A onto a skirt plate 19 having a concave arc shape. 2. A pair of left and right claw pieces 24 that are triangular in side view
The utility model registration request is characterized in that by bending the claws 24 inwardly, the bent end edges of both claw pieces 24 are engaged with the body wall surface of the instrument body A from the outside. range·
A mounting bracket for the ceiling-embedded lighting equipment described in paragraph 1. 3 Operation panel 1 bent into an almost square shape when viewed from the side
The upper surface of 7 is set as a fingertip resting surface 22 of the operating hand during a downward sliding operation, and the lower surface is set as a fingertip resting surface 23 of the operating hand during an upward sliding operation. Claims for New Patent Registration: A mounting bracket for a ceiling-embedded lighting fixture as set forth in item 1.