JP3834560B2 - Wall ceiling adapter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling adapter for stabilizing a lighting fixture when a ceiling-mounted lighting fixture (ceiling light) is attached to, for example, a ceiling of a Japanese-style room.
[0002]
[Prior art]
The ceiling of a Japanese-style room in a house, etc., is a so-called rim that has thin rod-shaped members (edges) with a cross section of 2 to 3 cm square arranged in parallel at regular intervals, and a ceiling plate is placed perpendicular to the edge of the ridges. Often used as a ceiling. In such ridge ceilings, it is common to attach a hook type wiring device such as a square hook ceiling to the lower surface of the ridge edge, and to connect the lighting device to this hook type wiring device. Therefore, there is no problem if it is a hanging type lighting fixture such as a pendant, but in the case of a ceiling light that is attached to the ceiling, the upper surface of the lighting fixture main body is only in contact with the lower surface of the collar, and the other parts Then, a gap corresponding to the height of the heel edge is generated between the ceiling board and the ceiling board.
[0003]
If there is a gap between the top surface of the lighting fixture and the ceiling panel, the lighting fixture will become unstable, and when an external force is applied to the lighting fixture body, such as when the switch string is lowered or the lamp is replaced. Shake and wobble. Therefore, Patent Documents 1 to 4 and the like have proposed techniques for stably attaching a lighting fixture to such a ceiling.
[0004]
FIG. 4 shows the technique described in Patent Document 1. In this technique, a plurality of adjusters 92 whose heights can be adjusted are provided at the corners of the luminaire main body 91 attached to the collar S, and each adjuster 92 screwed to the luminaire main body 91 is moved forward and backward. The lighting fixture main body 91 is stabilized by bringing its tip into contact with the ceiling plate T.
[0005]
FIG. 5 shows the technique described in Patent Document 2. In this technique, a groove portion 94 that is wider and deeper than the width and height of the flange S is formed on the upper surface of the lighting fixture body 93, and the lighting fixture body 93 is placed on the ceiling plate in a state where the flange S is received in the groove 94. It is made to contact | abut.
[0006]
FIG. 6 shows the technique described in Patent Document 3. In this technique, a spacer 96 made of an elastic material is bonded to the peripheral edge of the upper surface of the luminaire main body 95 over substantially the entire circumference so as to avoid the flange S, and lighting is performed by closely attaching the spacer 96 to the ceiling plate T. The instrument body 95 is designed to be stable. The symbol H in the figure is a hook-type wiring device.
[0007]
Further, Patent Document 4 relates to a configuration in which a plurality of spacers are attached to the peripheral edge of the upper surface of the luminaire main body in the same manner as the adjuster 92 described in Patent Document 1, and the first half and the second half made of a rigid body. A technique is described in which the outer halves are combined to form a substantially cylindrical shape, and the height of the spacer can be adjusted stepwise by changing the positional relationship between the two halves.
[0008]
[Patent Document 1]
Japanese Utility Model Publication No.59-23307 [Patent Document 2]
Japanese Utility Model Publication No. 61-42722 [Patent Document 3]
JP-A-10-283828 (Page 3, Fig. 1-2)
[Patent Document 4]
JP 2002-222608 A
[Problems to be solved by the invention]
Ceiling light type lighting fixtures have a round shape and a square shape, but the round shape has a structure in which the shade is attached to the lighting fixture body by turning it horizontally. There are many things. In the lighting fixture having such a structure, when the shade is attached / detached at the time of lamp replacement or the like, there is a possibility that the shade is turned in the direction opposite to the original attaching / detaching direction. As a result, an unreasonable rotational force acts on the luminaire body, and the luminaire body rotates together. In order to prevent this, it is necessary to fix the luminaire main body with screws at a plurality of locations on the ceiling. However, there are cases in which a screw hole cannot be formed in the ceiling due to aesthetic or building management problems.
[0010]
In the case of a structure in which the luminaire body rotates together with the shade, the adjuster described in Patent Document 1 and the spacer described in Patent Document 4 are attached to the luminaire body. The position moves with the rotation. Such spacers and adjusters are preferably arranged at positions that are symmetrical with respect to the flange edge, with a distance as far as possible from the flange edge. If it approaches, the stability will be reduced with respect to the external force that shakes or wobbles the luminaire.
[0011]
On the other hand, the technique described in Patent Document 2 has an advantage that the rim is contained in the groove, so that the rotation of the luminaire main body is constrained within the width of the groove and the instability as described above does not occur. is there. However, since the width and depth of the groove are unchanged, if the cross-sectional dimension of the flange is small relative to the groove, the luminaire main body will be mounted away from the lower surface of the flange, and conversely in the groove On the other hand, when the cross-sectional dimension of the collar is large, the upper surface of the luminaire main body does not adhere to the ceiling surface.
[0012]
Similarly, since the spacer described in Patent Document 3 does not have a height adjusting function, the same problem as the groove described in Patent Document 2 occurs. In order to solve this, it is very inconvenient because a plurality of types of spacers must be prepared according to the cross-sectional dimensions of the flange edge, and the user must select an appropriate one from among them.
[0013]
In addition, since all of the techniques described in the above patent documents are either provided in advance in the luminaire main body or are bonded or fixed to the luminaire main body later, all of the various luminaires are used. It is inefficient to prepare such means, and when replacing the luminaire, there is a waste that a new adjuster, a spacer or the like for the new luminaire is required again.
[0014]
Therefore, the present invention provides a universal type ceiling ceiling adapter that can be used regardless of the type of lighting fixture as a separate component from the lighting fixture. In this ceiling adapter, The solution is to provide a structure that can appropriately adjust the distance from the ceiling surface according to the cross-sectional dimensions, and that maintains a stable mounting state even when a rotational force is applied to the lighting fixture body. And
[0015]
Although the sealing adapter of the present invention is referred to as “for ridged ceilings”, the use site is not limited to the ridged ceiling of a Japanese-style room. For example, a Western-style room with a ridge-shaped protrusion is formed. It can also be used on the ceiling.
[0016]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the ceiling ceiling sealing adapter of the present invention is formed with a hole having a size through which a hook-type wiring device can be inserted substantially in the center of a thin plate-like mounting base made of a rigid body. In the vicinity of the peripheral edge of the mounting base, at least one flange hooking portion protruding upward is provided, and at least a pair of height-adjustable adjusters protruding upward is provided in the vicinity of the peripheral edge of the mounting base. It is attached so that it may become substantially symmetrical across the straight line which connects a stop part and the center of the said hole part.
[0017]
In this invention, a mounting base is interposed between the lighting fixture main body and the ceiling, and a connector on the lighting fixture main body side is coupled to a hook-type wiring fixture attached to the collar through a hole formed in the approximate center of the mounting base. It was made possible. The collar hooking portion provided on the mounting base is hooked on the side surface of the collar to prevent the mounting base from rotating together. Therefore, even if the rotational force applied to the luminaire main body acts on the mounting base, the orientation of the mounting base is kept constant, and thus the position of the adjuster is also properly maintained.
[0018]
In order to further stabilize the mounting state, the collar hooking portion may be provided at two positions facing each other across the center of the hole. In addition, each collar hooking portion may be provided as one hooking piece that can come into contact with the side surface of the collar edge, but at least one of the collar hooking portions has a width of the collar edge. It is good also as two latching pieces made to oppose with the corresponding predetermined space | interval. In this case, since the two hooking pieces are hooked on both side surfaces of the flange edge, the joint rotation in both directions is prevented.
[0019]
Since the adjuster can adjust the protruding height according to the cross-sectional dimension of the heel edge, even if the cross-sectional dimension of the heel edge varies, the tip end can be properly brought into contact with the ceiling plate. In addition, the adjuster is attached to a straight line that connects the center of the collar hooking portion and the hole, that is, a position that is substantially symmetric with respect to the axial direction of the collar itself, so that favorable stability against shaking and wobbling can be obtained. It is done. If the adjusters are arranged so as to face each other across the center of the hole of the mounting base and to be orthogonal to the flange edge, the number of adjusters is minimal two, and suitable stability can be obtained. The number of adjusters may be further increased and each may be arranged in a balanced manner.
[0020]
The adjuster has a double structure consisting of a core part and a peripheral part, and the core part is screwed to a support bolt fixed to the mounting base, or a supporting bolt fixed to the core part is formed on the mounting base. By being screwed into the female screw hole, the support bolt is held movably in the axial direction.
[0021]
Then, when a certain amount or more of rotational torque is applied to the peripheral portion in a state where the movement is constrained, the peripheral portion and the core portion can be formed so as to idle with respect to each other. This structure constitutes a so-called torque limiter. For example, a cylindrical body made of a synthetic rubber or other elastic body fitted to a metal hexagon nut or the like is used as a core, and a synthetic resinous material fitted to the core is used. A cylindrical body can be used as a peripheral part.
[0022]
According to this, even when the adjuster is extended too much when adjusting the height, the peripheral part and the core part idle when contacted with the ceiling plate, so that the adjuster is extended more than necessary and the ceiling plate is damaged. Can prevent such accidents.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0024]
FIG. 1 shows an overall configuration of a ceiling adapter for a ceiling according to an embodiment of the present invention, and FIG. 2 shows a ceiling light type lighting fixture on the ceiling using the ceiling adapter for a ceiling of FIG. The attached state is shown.
[0025]
The illustrated ceiling adapter 1 for the rim ceiling is installed between the luminaire L and the ridge ceiling, and is made of a thin metal plate formed in a substantially circular shape in plan view in accordance with the round luminaire L. Mounting base 2 and two adjusters 3 attached to the mounting base 2. However, it is also possible to make the planar shape of the mounting base 2 rectangular according to a rectangular lighting fixture.
[0026]
A circular hole 21 is formed in the center of the mounting base 2. The size of the hole 21 is such that the hook-type wiring device H attached to the ceiling edge S of the ceiling can be inserted. In the illustrated form, the vicinity of the hole 21 extends downward from the vicinity of the peripheral edge of the mounting base 2, and the lowermost portion is formed to have substantially the same height as the lower surface of the hook-type wiring device H. However, this cross-sectional shape is an element that is appropriately designed in consideration of the relationship with the upper surface shape of the luminaire main body La. Therefore, in the present invention, the cross-sectional shape in the vicinity of the hole 21 is not particularly limited as long as at least the vicinity of the periphery of the mounting base 2 is formed so as to contact the lower surface of the flange S.
[0027]
The luminaire main body La is coupled to the hook-type wiring device H by hooking the plug blade of the connector Lb provided at the center thereof to the hook-type wiring device H exposed from the hole 21. Sponge packing 4 is attached to the lower surface of the peripheral edge of the mounting base 2 over the entire circumference, and this sponge packing 4 adheres the mounting base 2 and the luminaire main body La with appropriate frictional force and buffering properties. Let
[0028]
On the upper surface of the peripheral edge of the mounting base 2, there is provided a flange hooking portion 5 that protrudes upward so as to face each other with the center of the hole 21 interposed therebetween. Each collar hooking portion 5 according to the illustrated embodiment is configured by two hooking pieces 51 that are opposed to each other at an interval slightly wider than the width of the standard collar S. Each of the latching pieces 51 is formed by cutting and raising a part of the mounting base 2, and the protruding height is smaller than the height of the standard flange S. The mounting base 2 is applied to the lower surface of the collar S in a state where the collar S is sandwiched between the collar hooking portions 5. As a result, the mounting base 2 is positioned with its center substantially coincident with the flange edge S, and the horizontal rotation is restrained by the hook between the flange edge S and the flange edge latching portion 5.
[0029]
The adjuster 3 is arranged so as to be orthogonal to the arrangement direction of the flange hooking portion 5 and to face each other with the center of the hole portion 21 of the mounting base 2 interposed therebetween. For example, as shown in FIG. 3, each adjuster 3 is fitted with a metal flanged hexagon nut 31, a synthetic rubber inner cylinder 32 fitted to the hexagon nut 31, and the cylinder 32. A hexagonal nut 31 is screwed onto a support bolt 22 fixed to the mounting base 2. The flange of the hex nut 31 prevents the hex nut 31 from coming out of the inner cylinder 32.
[0030]
In this form, the hexagon nut 31 and the inner cylinder 32 constitute a core part, and the outer cylinder 33 constitutes a peripheral part. A plurality of protrusions 34 are formed on the inner peripheral surface of the outer cylindrical body 33, and the protrusions 34 are hooked on the outer peripheral surface of the inner cylindrical body 32, so that the inner cylindrical body 32 and the outer cylindrical body 33 are also connected. Appropriate frictional force is generated. Therefore, when the outer cylindrical body 33 is rotated with the fingertip, the outer cylindrical body 33, the inner cylindrical body 32 and the hexagon nut 31 are integrally moved up and down in the axial direction of the support bolt 22, and the mounting base 2 and the ceiling plate T are The height can be adjusted steplessly according to the interval. However, when the outer cylinder 33 is further rotated when the top surface of the inner cylinder 32 comes into contact with the ceiling plate T, the outer cylinder 33 is idled with respect to the inner cylinder 32, and the inner cylinder 32 is further moved. It does not rise. By providing such a torque limiter function, it is possible to prevent the adjuster 3 from being excessively extended and apply an excessive pressure to the ceiling plate T, and to protect the ceiling plate T from damage.
[0031]
In the illustrated embodiment, the two adjusters 3 are symmetrical with respect to the flange edge S, and are disposed at a position farthest from the flange edge S. Therefore, the external adjuster 3 can be swayed and wobbled against the external force. Therefore, suitable stability can be obtained with the minimum number of adjusters 3. Moreover, since the collar hooking portion 5 is hooked on the side surface of the collar S and the rotation of the mounting base 2 is restricted, the position of the adjuster 3 is properly maintained even if a rotational force is applied to the luminaire main body La. The If the cost permits, it is also possible to increase the number of adjusters 3 and arrange two to three symmetrically on both sides of the collar S. However, if the number of adjusters 3 is increased more than necessary, the effort for height adjustment will increase, which is not practical.
[0032]
As other embodiments of the present invention, the following configurations are possible.
[0033]
The flange hooking portion 5 may be provided only at one location so as to be orthogonal to the arrangement direction of the adjuster 3 instead of the opposed arrangement as illustrated. Further, the shape of the flange hooking portion 5 may be one hooking piece. In this case, each latching piece is arranged to be deviated laterally by about ½ of the width of the flange edge S from a center line (line perpendicular to the arrangement direction of the adjuster 3) passing through the center of the hole 21. .
[0034]
Further, for the adjuster 3, for example, a synthetic resin cylinder having a female screw hole penetrating in the center is used as a core, and a metal cylinder fitted outside thereof is used as a peripheral part. A double structure having a torque limiter function can be configured, and the material and form of the core and the peripheral part are not particularly limited.
[0035]
Moreover, you may form the hole part 21 of the attachment base | substrate 2 so that the shape may be fitted to the outer peripheral surface of the hook type wiring instrument H. FIG. According to this, when the ceiling adapter 1 for the rim ceiling is sandwiched between the ceiling and the luminaire main body La, only the ceiling adapter 1 for the rim ceiling is previously fitted and temporarily fixed to the hook-type wiring device H. Therefore, it is possible to easily adjust the height of the adjuster 3 and to join the luminaire main body La. In this case, it is preferable that a packing material made of a soft resin or the like is attached to the peripheral portion of the hole portion 21 to increase the fitting friction with the hook type wiring device H and not to damage the hook type wiring device H. .
[0036]
【The invention's effect】
The ceiling ceiling ceiling adapter of the present invention is prepared as a separate product from the luminaire and is configured to be used universally for various shapes of luminaires. Even it can be used continuously.
[0037]
And this ceiling adapter for ceiling is provided on the mounting base interposed between the lighting fixture main body and the ceiling, on the edge hooking portion which can be hooked on the side surface of the flange, and the adjuster which can adjust the protruding height. Therefore, even when a rotational force is applied to the luminaire main body, co-rotation is prevented and the position of the adjuster is properly maintained. Moreover, by adjusting the protrusion height of the adjuster according to the cross-sectional dimension of the flange edge, the adjuster can be properly brought into contact with the ceiling, and favorable stability can be obtained with respect to external force that causes shaking and wobbling.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall configuration of a ceiling adapter for a ceiling according to an embodiment of the present invention.
FIG. 2 is a half cross-sectional view showing a state in which a lighting fixture is attached to the rim ceiling using the ridge ceiling ceiling adapter.
FIG. 3 is a cross-sectional view showing a structure of an adjuster of the ceiling adapter for a ceiling ceiling.
4 is a diagram illustrating a technique described in Patent Document 1. FIG.
FIG. 5 is a diagram showing a technique described in Patent Document 2;
6 is a diagram showing a technique described in Patent Document 3. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ceiling edge ceiling adapter 2 Mounting base 21 Hole 22 Support bolt 3 Adjuster 31 Hexagon nut 32 Inner cylinder 33 Outer cylinder 5 Edge edge latching part 51 Hanging piece H Hook type wiring fixture La Lighting fixture body S Edge T Ceiling board

Claims (5)

A hole of a size that allows a hook-type wiring device to be inserted is formed in the approximate center of a thin plate-like mounting base made of a rigid body,
In the vicinity of the periphery of the mounting base is provided with at least one flange hooking portion protruding upward,
Near the periphery of the mounting base, at least a pair of height-adjustable adjusters protruding upward are mounted so as to be substantially symmetrical across a straight line connecting the flange hooking portion and the center of the hole. This is a ceiling adapter for ridged ceilings. 2. The ceiling adapter for a ceiling according to claim 1, wherein the edge hooking portions are provided at two positions facing each other across the center of the hole. The ceiling adapter for a ceiling according to claim 1 or 2, wherein at least one edge hooking portion comprises two hooking pieces facing each other at a predetermined interval. The adjuster has a double structure consisting of a core portion and a peripheral portion, and is held movably in the axial direction of the support bolt by screwing the core portion onto a support bolt fixed to the mounting base. The structure according to claim 1, 2 or 3, wherein the peripheral portion and the core portion are allowed to idle each other when a rotation torque of a certain level or more is applied to the peripheral portion in a state where the movement is restricted. The ceiling adapter for the ceiling of the description. The adjuster has a double structure consisting of a core part and a peripheral part, and the support bolt fixed to the core part is screwed into a female screw hole formed in the mounting base so that it can move in the axial direction of the support bolt. 2. While being held, the peripheral portion and the core portion are formed so as to be able to idle each other when a rotational torque of a certain level or more is applied to the peripheral portion in a state where the movement is restricted. A ceiling adapter for a ceiling according to 2 or 3.

Images