JP5097519B2 - Downlight fixture mounting structure - Google Patents

Description

The present invention relates to a downlight fixture mounting structure in which a ceiling-embedded downlight fixture is installed in a ceiling mounting hole.

  The structure of a commercially available ceiling-embedded downlight fixture and a method of installing it in a ceiling mounting hole will be described with reference to FIG. The instrument main body 10 includes an outer casing 14 provided around the entire outer periphery of the opening of the housing 12 and a pair of attachment springs 16 a and 16 b having an upward spreading angle on the outer side of the housing 12. On the other hand, the ceiling member 18 is provided with a mounting hole 20 that is smaller than the outer diameter of the outer casing 14 and opened larger than the outer diameter of the housing 12. The instrument body 10 is pushed into the mounting hole 20 in a state where the mounting springs 16a and 16b are pushed and bent toward the housing 12, and the mounting springs 16a and 16b that have passed through the mounting hole 20 are returned to the outside to complete the mounting. To do. FIG. 9 is a cross-sectional view showing this state. The outer flange 14 is brought into contact with the front side mounting portion 18a of the mounting hole, and the mounting springs 16a and 16b are pressed against the inner edge of the mounting hole 20 by the return force. The main body 10 is fixed to the ceiling material 18.

  Further, as disclosed in Patent Document 1, a plate-like attachment spring is formed with an inclination in the vertical direction of the instrument body, and by applying an urging force in the outward direction, the attachment spring is attached to the attachment hole. A structure has been proposed in which the strength pressed against the inner edge is increased and the instrument body can be more firmly attached.

Furthermore, as disclosed in Patent Document 2, in order to install a downlight device having a different outer diameter in a mounting hole of an existing downlight device, the device body is fixed to the mounting hole via a predetermined adapter. A structure has also been proposed.
Japanese Utility Model Publication No. 62-4018 JP 2004-207191 A

  However, in the downlight fixture shown in FIG. 9, when the mounting hole 20 is first provided in the ceiling, when the opening is slightly distorted than the predetermined shape, or when the cut is opened at a slight angle instead of a right angle, As shown in FIG. 9, the pressure contact is insufficient as in the case of the mounting spring 16b, and the fixing by the restoring force of the mounting spring 16b is not sufficient. There was a risk of falling easily.

  Further, for example, when the instrument body 10 is removed for maintenance and replacement, it is necessary to pull out the instrument body 10 by applying a force exceeding the return force of the mounting springs 16a and 16b. Therefore, in a ceiling material made of gypsum material or the like that is generally used, the vicinity of the inner edge of the mounting hole 20 to which the mounting springs 16a and 16b are pressed may be damaged or lost. In particular, if the inner edge of the mounting hole 20 is missing beyond the angle at which the restoring force of the mounting spring does not act, when a new downlight device is mounted, the pressure contact is insufficient as in the mounting spring 16b as shown in FIG. Thus, even if the instrument body 10 is apparently fixed to the ceiling member 18, there is a possibility that the instrument body 10 may easily fall due to slight vibration.

  Further, when the downlight fixture is attached again in a state where the mounting hole 20 is severely damaged due to the attachment of the downlight fixture or the like, a gap may be formed between the mounting hole 20 and the fixture body 10. In this case, for example, in order to ensure the appearance and the fixing strength of the apparatus main body, a sealing material such as silicone is applied to the gap between the outer casing 14 of the downlight apparatus and the surface of the upper ceiling material 18 to fill and attach the gap. The adhesion of the ceiling material 18 in the hole 20 portion is reinforced. However, at the time of the next maintenance replacement, in order to remove the instrument body firmly fixed with the sealing material, the mounting hole part must be destroyed, and the work of replacing the ceiling material of that part occurs. there were. In addition, when the seam and the color difference are conspicuous due to the replacement, the entire upper ceiling material 18 may be painted. Furthermore, in the method disclosed in Patent Document 1, the pressure strength against the inner edge of the mounting hole of the mounting spring is increased by devising the structure to increase the fixing strength, but the force is directly applied to the inner edge of the mounting hole. In addition, it is not different from the general structure of FIG. 9 and has the same problem.

  On the other hand, in the method disclosed in Patent Document 2, the ceiling mounting bracket is placed on the back side of the ceiling mounting hole, and is inserted into the square hole of the ceiling mounting bracket while bending the mounting spring of the ceiling mounting frame inward. It requires a lot of work of assembling and fixing the device body by inserting it into the embedding hole, and the work efficiency at the time of installation was very poor compared to the downlight fixture with the general structure described above. . In addition, in order to ensure the physical strength of the adapter consisting of the ceiling mounting frame and the ceiling mounting bracket, it is necessary to form the embedded hole of the instrument body formed in the adapter with a sufficient clearance with respect to the ceiling mounting hole, that is, In the case where a new downlight fixture is installed in the existing mounting hole, there is a problem that only a downlight fixture having a sufficiently small casing with respect to the mounting hole can be selected.

The present invention has been made in view of the above-mentioned problems of the background art, and can stably attach the downlight apparatus stably regardless of the state of the inner edge of the mounting hole of the ceiling material. It aims at providing the attachment structure of a light fixture.

The present invention provides an instrument body having a housing having an opening, an outer casing provided in the opening of the housing, and a plurality of attachment holding members that hold the housing on a ceiling material. An embedded downlight fixture that is inserted into a mounting hole provided in a ceiling material, abuts the outer casing against a front side mounting portion of the mounting hole, and attaches the instrument body to the ceiling material by the mounting holding member. a mounting structure, wherein the center housing can be inserted through holes are formed, toward the outer edge portion of the peripheral edge portion of the hole from the through hole, it is cut over the thickness or width of the ceiling material open A mounting auxiliary plate formed in a substantially C shape having a cut portion is provided, and the mounting auxiliary plate is inserted into the through hole from one end of the cut portion of the mounting auxiliary plate from the front surface of the mounting hole of the ceiling material. The mounting auxiliary plate is entirely inserted in the mounting hole of the ceiling material. By passing, the auxiliary mounting plate placed on the rear side mounting portion of the mounting hole of the ceiling material, more plurality of said mounting support member to said instrument body has, on the inside edge of the through hole of the mounting assisting plate the instrument body is held, said sandwiching the ceiling material between the mounting assisting plate and the outer flange, a mounting structure of a downlight fixture for fixing the instrument body to the mounting hole.

One cutting position of the cut portion of the auxiliary mounting plate is a parallel line parallel to the tangent of the outer periphery of the outer casing when the instrument main body is disposed concentrically with the auxiliary mounting plate. Assuming a distance greater than twice the width of the outer casing in the inner direction, the other cutting position of the cut portion of the mounting auxiliary plate is cut along the parallel line and the through hole. Assuming a line orthogonal to the parallel line on the auxiliary mounting plate, and a cutting auxiliary line at a distance separated from the orthogonal line on the auxiliary mounting plate by the thickness of the ceiling material the cut with auxiliary cutting line, is to have the said cut portion of the cutting position where the auxiliary mounting plate are perpendicular to each other.

The mounting holding member is an elastic mounting spring, and the mounting spring is brought into pressure contact with the inner edge side of the through hole of the auxiliary mounting plate with its restoring force, and the ceiling is interposed between the outer casing and the auxiliary mounting plate. A material is clamped to fix the instrument body to the mounting hole. In addition, a fixing member for fixing to the ceiling material is provided on the surface of the auxiliary mounting plate on the ceiling material side, and the excision portion is excised at 180 ° or less of the inner periphery of the through hole. Is .

According to the downlight fixture mounting structure of the present invention, the mounting holding member such as the mounting spring is pressed against the mounting auxiliary plate, so that the inner edge of the ceiling material mounting hole may be damaged during maintenance replacement of the fixture body. There is no. Also, if there is damage to the inner edge of the mounting hole, the mounting hole is opened slightly distorted from the specified shape from the beginning, or the mounting hole cut from the beginning is opened slightly diagonally rather than right Even so, since the ceiling material is stably held between the mounting auxiliary plate and the outer casing of the housing opening, it is possible to hold the fixture main body of the downlight fixture with sufficient fixing strength.

  Also, in addition to the conventional general installation work, the work efficiency during installation is almost reduced because only the simple work of inserting the mounting auxiliary plate into the mounting hole and placing it on the back side of the mounting part is added. do not do. Furthermore, it is possible to avoid a situation in which the ceiling material has to be replaced due to wear or breakage of the ceiling material due to attachment or removal of the downlight apparatus.

Hereinafter, a first embodiment of a downlight fixture mounting structure according to the present invention will be described with reference to FIGS. First, the fixture main body 10 of the downlight fixture includes an outer casing 14 provided on the entire outer periphery of the opening of the housing 12 and a pair of mounting springs 16 a and 16 b installed on the outer side of the housing 12 at an angle extending upward. And the lamp 15 is mounted in the hollow interior.

  The auxiliary mounting plate 30 has a through-hole 32 through which the housing 12 can be inserted at the center, and has a cut-out portion 34 cut out over a width w that is equal to or greater than the thickness of the ceiling material. It is formed in a substantially C-shape that is left more than °. On the other hand, the ceiling member 18 is provided with a mounting hole 20 that is smaller than the outer diameter of the outer casing 14 and opened larger than the outer diameter of the housing 12.

  Next, the installation method of the attachment auxiliary plate of the downlight apparatus of this embodiment is demonstrated. First, after attaching the double-sided tape 22 to the surface which faces the back surface of the ceiling material 18 of the attachment auxiliary plate 30, as shown in FIG. Then, the mounting auxiliary plate 30 is inserted into the mounting hole 20 and placed on the back side mounting portion 18 b of the ceiling material 18 via the double-sided tape 22 to fix the mounting auxiliary plate 30 to the ceiling material 18. The outer shape of the auxiliary mounting plate 30 is formed larger than the inner diameter of the mounting hole 20, but the cut portion 34 has a width w wider than the thickness of the ceiling member 18, so that the cut portion is shown in FIG. If the ceiling member 18 is guided from 34 to the through hole 32, it can be easily inserted into the mounting hole 20.

  Next, as shown in FIG. 3, the instrument main body 10 is pushed into the attachment hole 20 and the through hole 32 in a state where the attachment springs 16 a and 16 b are pushed and bent toward the housing 12. At that time, the orientation of the instrument body 10 is adjusted so that the attachment springs 16 a and 16 b are arranged at positions different from the cut portion 34. Then, the mounting springs 16a and 16b inserted through the mounting hole 20 and the through-hole 32 return to the outer direction, and the mounting is completed. FIG. 3 shows this state. The outer flange 14 is brought into contact with the front-side mounting portion 18a of the mounting hole, and the mounting springs 16a and 16b are both pressed against the inner edge of the through-hole 32 by the return force. The instrument body 10 is fixed to the mounting hole 20 with the ceiling member 18 sandwiched between the outer casing 32 and the mounting auxiliary plate 30.

According to the downlight fixture mounting structure of this embodiment, the mounting springs 16 a and 16 b are pressed against the mounting aid 30, and the inner edge of the mounting hole 20 of the ceiling member 18 is damaged during maintenance replacement of the fixture body 10. There is nothing. Furthermore, even if the inner edge of the mounting hole 20 is damaged, is slightly distorted from the predetermined shape and is opened larger, or the cut end is opened obliquely, the mounting auxiliary plate 30 and the housing 12 Therefore, the instrument body can be held with sufficient fixing strength. Furthermore, the increase in work man-hours is minimized, and the work efficiency at the time of installation is hardly lowered.

Next, a second embodiment of the downlight fixture mounting structure of the present invention will be described with reference to FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The instrument main body 40 has three attachment springs 16a, 16b, and 16c. The thickness of the ceiling material for the auxiliary mounting plate 42 to be inserted into the mounting hole of the ceiling material while securing the contact portions 36a, 36b, 36c so that all of the mounting springs 16a, 16b, 16c can contact. A cut portion 34 having the above width w is provided. Therefore, also in the instrument main body 40, by using the auxiliary mounting plate 42, it can be installed by the same method as the installation method described in the first embodiment, and has the same effects.

Next, a third embodiment of the downlight fixture mounting structure of the present invention will be described with reference to FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. As for the instrument main body 50, the housing | casing 52 is formed in the substantially square shape. The auxiliary mounting plate 54 has a central through hole 56 that is substantially square, and is formed so that the housing 52 can be inserted therethrough. Therefore, also in the instrument main body 50, it can install by the method similar to the installation method demonstrated in 1st embodiment by using the attachment auxiliary | assistant board 54, and there exists the same effect.

  In addition, since the attachment auxiliary | assistant board should just be attachable to the back side of a ceiling material, when an attachment auxiliary | assistant board can be elastically deformed, a slit may be formed in an annular member and the ring may be cut off. When it is placed on the ceiling material, it can be placed on the back surface side of the ceiling material by elastically deforming so as to give a step at the slit portion and inserting and rotating one end portion on the back surface side of the ceiling material.

  On the other hand, when the attachment auxiliary plate cannot be elastically deformed as much as the thickness of the ceiling material, the cut portion 34 is formed so that at least a gap of the thickness d of the ceiling material 18 is formed as shown in FIG. Assuming the ceiling material 18 and the auxiliary mounting plate 30 as shown in FIG. 6A, the method of forming the cut portion 34 is perpendicular to an arbitrary cutting auxiliary line h1, as shown in FIG. 6B. The line is defined as a tangent r1 on the outer periphery of the outer casing 14 indicated by a virtual line. A contact point between the outer periphery of the outer casing 14 and the tangent line r1 is defined as a point x. A parallel line r2 is provided on the outer tangent line r1 in the inner direction of the outer casing 14. The distance between the parallel lines is, for example, a distance twice the width of the outer casing 14. As a result, the intersection of the cutting auxiliary lines h1 and r2 is defined as a point a, and the point separated by a distance of the ceiling material thickness d in the direction away from the contact point x on the line r2 is defined as a point b. This point b is in contact with the inner periphery of the outer casing 14. In this state, as shown in FIG. 6C, a line segment extending from the outer shell 14 and the point a of the line h1 to the r1 direction and a line segment extending from the point a of the line r2 to the point b direction are cut lines. And

  When changing the cut area, it is preferable to move the point b upward in the drawing, or to make the distance between the parallel lines larger than twice the width of the outer casing 14. In order to improve workability, the cutting line may be changed in a direction that includes the determined cutting line and increases the cut area. However, care should be taken so that members such as mounting springs of the downlight apparatus can come into contact.

  In addition, when the outer shape of the auxiliary mounting plate 34 is circular, for example, when it matches the outer shape of the outer casing 14, the cut portion 34 can be obtained similarly. In this case, the inside part of the phantom line of the outer casing 14 is excised from the excision part 34 shown in FIG.

  Further, as shown in FIG. 7, when the outer casing is square, the mounting auxiliary plate 54 is also square, and considering the circles inscribed on the inner and outer circumferences of the mounting auxiliary plate 54, as in the case shown in FIG. The cut portion 34 is obtained.

  Further, when the opening is rectangular, as shown in FIG. 8, the short side of the outer casing 54 is set as the tangent line r1, and a square outer casing having a short side is cut, and the case of FIG. Similarly, the cut part 34 is determined.

  The present invention is not limited to the above-described embodiment, and the shape of the auxiliary mounting plate can be set as appropriate. Furthermore, the cut portion at the peripheral portion of the auxiliary mounting plate may be wider than the thickness of the ceiling material and cut at 180 ° or less of the inner periphery of the through hole.

  In addition to the attachment spring, the attachment holding member can also be used for a downlight apparatus of a type that is fixed by an attachment pawl extending laterally from the housing. Moreover, the outer periphery shape and thickness of an attachment auxiliary | assistant board should just be inserted in an attachment hole. In addition, the material of the auxiliary mounting plate is suitably a metal such as iron or aluminum, but it is not particularly limited to a metal as long as it has strength and durability capable of continuing to fix the instrument body, Resin may be used. In addition, the outer peripheral shape and thickness of the auxiliary mounting plate can be inserted into the mounting hole, and can withstand the weight of the instrument body and the holding force of the mounting holding member such as the mounting spring, ensuring the strength to securely maintain the fixed state. What is necessary is just to have.

It is a perspective view which shows the attachment auxiliary | assistant board and downlight fixture of 1st embodiment of this invention. It is a perspective view which shows the insertion method to the attachment hole of the attachment auxiliary plate of this embodiment. It is sectional drawing which shows the ceiling installation state of this embodiment. It is a top view which shows the attachment auxiliary plate and downlight fixture of 2nd embodiment of this invention. It is a top view which shows the attachment auxiliary plate and downlight fixture of 3rd embodiment of this invention. In embodiment of this invention, it is a schematic diagram which shows the setting method of the cutting part of an auxiliary mounting plate. In embodiment of this invention, it is a schematic diagram which shows the setting method of the cutting part of another attachment auxiliary | assistant board. In embodiment of this invention, it is a schematic diagram which shows the setting method of the cutting part of another attachment auxiliary | assistant board. It is sectional drawing which shows the ceiling installation state of a general downlight fixture.

DESCRIPTION OF SYMBOLS 10 Instrument main body 12 Case 14 Outer casing 16a, 16b Attachment spring 18 Ceiling material 18a Front side attachment part 18b Back side attachment part 20 Attachment hole 22 Double-sided tape 30 Attachment auxiliary plate 32 Through hole 34 Cut part

Claims (4)

An instrument body having a housing having an opening, an outer casing provided in the opening of the housing, and a plurality of attachment holding members for holding the housing on the ceiling material is provided on the ceiling material. In the mounting structure of the embedded downlight fixture, the outer casing is brought into contact with the front side mounting portion of the mounting hole, and the fixture main body is attached to the ceiling material by the mounting holding member.
Wherein the center housing can be inserted through holes are formed, toward the outer edge portion of the peripheral edge portion of the hole from the through hole has a cutout which is excised opened over the thickness or width of the ceiling material An auxiliary mounting plate formed in a substantially C shape is provided ,
From the front side of the mounting hole of the ceiling material, the mounting auxiliary plate is guided and inserted into the through hole from one end of the cut portion of the mounting auxiliary plate, and the entire mounting auxiliary plate passes through the mounting hole of the ceiling material. By putting the mounting auxiliary plate on the back side mounting portion of the mounting hole of the ceiling material,
The more plurality of said mounting holding member instrument body has, to hold the instrument body on the inside edge of the through hole of the mounting assisting plate,
Mounting structure downlight fixture to sandwich the ceiling material between the mounting assisting plate and the outer flange, characterized in that said instrument body is fixed to the mounting hole. One cutting position of the cut portion of the auxiliary mounting plate is a parallel line parallel to the tangent of the outer periphery of the outer casing when the instrument main body is disposed concentrically with the auxiliary mounting plate. Assuming a distance greater than twice the width of the outer cage in the inner direction, cut along the parallel lines,
The other cutting position of the cut portion of the mounting auxiliary plate is assumed to be a line orthogonal to the parallel line on the mounting auxiliary plate from the intersection of the parallel line and the through hole, and on the mounting auxiliary plate. Assuming a cutting auxiliary line at a distance separated from the orthogonal line by the thickness of the ceiling material, it is cut by the cutting auxiliary line,
The downlight fixture mounting structure according to claim 1 , wherein the mounting auxiliary plate has cut portions at the cutting positions orthogonal to each other . Said mounting support member is a mounting spring having elasticity, the mounting spring is pressed against the inner edge of the through hole of the mounting assisting plate at its return force, between the mounting assisting plate and the outer flange by sandwiching the ceiling material, mounting structure according to claim 1 or 2, wherein the downlight fixture to secure the instrument body in the mounting hole. The fixing member for fixing to the ceiling material is provided on the surface of the auxiliary mounting plate on the ceiling material side, and the cut portion is cut to 180 ° or less of the inner periphery of the through hole. The downlight fixture mounting structure according to 12 or 2.

Images