JP2582896B2 - Recessed lighting fixture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a recessed lighting device, and in particular, a device body embedded and installed on a ceiling surface such as a downlight or an emergency light. The present invention relates to a fixture to be held in a mounting hole.

(Prior Art) A conventional lighting apparatus of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 60-107201.
As described in the publication, an engaging groove is formed in the instrument body in the up-down direction, and the engaging pieces respectively bent from both sides of the fixture body are movably engaged with the engaging groove, The engaging pieces bent outward from the engaging grooves of the two engaging pieces are engaged with the inner surfaces of both sides of the engaging groove of the instrument body, and the press contact pieces formed on both sides of the fixture body are attached to the instrument body. Is engaged with the outer surfaces of both sides of the engagement groove of the instrument body, and the sharp end of the lower end of the fixture body is brought into contact with the back side of the ceiling surface to hold the instrument body.

(Problems to be Solved by the Invention) In the lighting fixture having the above-described conventional structure, the both-side engaging pieces of the fixture main body are elastically pressed against the both side edges of the engaging groove so as to be held above the engaging groove, After inserting the fixture main body into the mounting hole on the ceiling surface, lower the fixture main body along the engagement groove of the fixture main body. Due to the structure for holding the main body, if the elastic pressing force between the engaging pieces on both sides of the mounting body and both side edges of the engaging groove is low, the mounting body slips off from the engaging groove and holds the mounting body. As a result, the fixture body must be fitted into the mounting hole in the ceiling surface, and there is a problem that the mounting workability is poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and only by sliding a fixture body above an engagement groove of an instrument body, the fixture body is locked in a wedge shape above the engagement groove of the instrument body, and the instrument body is attached. It is an object of the present invention to provide an embedded lighting device which can be easily fitted into a mounting hole in a ceiling surface.

[Configuration of the invention]

(Means for Solving the Problems) An embedded lighting device according to the present invention includes a device main body having an up-down engaging groove, and an inner surface of a ceiling surface movably engaged with the engaging groove of the device main body. A fixture main body to be locked, wherein the fixture main body is bent at substantially right angles from both side edges of the substrate portion and movably engaged with the engagement grooves of the instrument main body. An engagement piece, and an engagement piece that is bent outward at substantially right angles at the upper and lower ends of the tip edges of the two engagement pieces and is engaged with the outer edge of the engagement groove of the instrument body. And a receiving portion extending from a lower portion of the substrate portion and abutting against an inner surface of the ceiling surface, and at an upper portion of the substrate portion, both side edges of the engaging groove inserted into the engaging groove. Pressing contact pieces formed with locking edges formed on both side edges to be pressed into contact with each other are protruded, and the upper end side edge of the engagement groove is gradually turned upward. It is characterized by having an inclined edge so as to be narrow.

(Effect) In the embedded lighting fixture of the present invention, the engagement piece of the fixture body is inserted into the engagement groove of the fixture body, and the engagement piece is slidably engaged with the engagement groove in the upward direction. Attach the fixture body to the fixture body. And when attaching the instrument body to the ceiling surface,
The fixture main body is slid over the engagement groove, and both sides of the press-contacting piece are bitely engaged with the inclined edge of the engagement groove in a wedge shape, and the fixture main body is held at the upper part of the engagement groove. In this state, after the fixture body is inserted into the mounting hole on the ceiling surface, the engaging piece of the fixture body is lowered along the engaging groove, and the receiving piece formed at the lower portion of the base plate of the fixture body is moved to the ceiling. When the inner surface of the device comes into contact with the inner surface of the device, the pressure contact piece is inserted into the engagement groove of the instrument body, and the locking edges of both side edges are bitely locked by the both sides of the engagement groove, and the locking piece is formed. The part is engaged with the inner peripheral edge of the engagement groove, and the instrument body is held in the mounting hole.

(Embodiment) The configuration of an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

In FIG. 2, reference numeral 1 denotes an appliance main body, which is formed in a substantially U-shape. As shown in FIG. An insertion groove 4 is formed on each of the upper and outer sides of the engagement groove 3. The engagement groove 3 is formed on the inclined edge 3a such that the upper end side edge of the insertion groove portion 4 gradually narrows toward the upper side.

Reference numeral 5 denotes a fixture body which is movably engaged with the two engaging grooves 3 of the instrument body 1 and is engaged with the inner surface of the ceiling surface.
The fixture main body 5 is molded of a metal plate material, a synthetic resin, or the like, and is bent at substantially right angles from both side edges of the substrate portion 6 and both side edges of the substrate portion 6 so as to be movable into the engagement grooves 3 of the instrument main body 1. The right and left engagement pieces 7 to be engaged with each other, and the upper and lower edges of the distal end edges of the two engagement pieces 7 are cut and raised at substantially right angles outwardly, and are bent. A locking piece 8 locked to both outer edges of the outer member 3;
And operation piece portions 9 respectively extending from the tips of the operation pieces. Locking edges 10 extending from the upper edge of the substrate portion 6 are respectively inserted into the two engaging grooves 3, and are formed on both side edges of the engaging grooves 3 so as to bite into and press in contact with the both side edges of the engaging groove 3. The pressure contact pieces 11, 11 are protrudingly provided, and both pressure contact pieces 11, 11 are formed in a tapered shape in which the tip ends are narrowed. The upper edge of the base plate 6 is provided with an elastic operation piece 12 whose front end is pressed into contact with the outer surface between the two engagement grooves 3 from between the two pressure contact pieces 11, 11. The elastic operating piece 12 is inserted into the instrument body 1 before the press contact pieces 11, 11 are inserted into the engagement groove 3.
To come into contact with the outer surface. Further, a flat elastic receiving piece portion 14 extending from a lower portion of the substrate portion 6 and abutting on an inner surface of the ceiling surface 13 is formed at a lower end edge.

In FIG. 2, reference numeral 16 denotes a reflecting mirror provided on the instrument main body 1 and an irradiation opening is formed on a lower surface thereof.
A peripheral edge 17 formed by bending outward at the lower edge of the instrument body 1
Is engaged with the inner peripheral step 19 of the edge frame 18 attached to the lower part of the instrument body 1 and attached to the instrument main body 1. Further, the reflecting mirror 16 is supported by a support 20 provided on the instrument body 1, and a lamp 22 mounted on a socket 21 provided on the instrument body 1 is included in the reflecting mirror 16. I have.

 Next, the operation of this embodiment will be described.

The fixture body 1 is held by holding the two engagement pieces 7 of the fixture body 5.
Insertion grooves 4 respectively formed on both upper and outer sides of the engagement groove 3
When the operation piece 9 is inserted obliquely from above, the locking piece 8 is also inserted obliquely, and the engagement piece 7 is inserted into the engagement groove 3 to hold the engagement piece 7. When released, the fixture body 5 is movably attached to the instrument body 1 along the engagement groove 3. Then, the fixture main body 5 is moved upward along the engaging groove 3 of the instrument main body 1 and bitely engaged with the inclined edge 3a in a wedge shape so as to gradually become narrower toward the upper side. 5 is held in the upper part of the engagement groove 3.

Also, when mounting fixtures, mount holes on the ceiling surface 13
The instrument body 1 is inserted into 23 from below. At this time, the mounting body 5 is mounted without the receiving piece part 14 being in contact with the edge of the mounting hole 23 because the substrate part 6 of the mounting body 5 is held substantially parallel to the outer surface of the instrument body 1. The hole 23 is inserted. Then, after the fixture main body 5 is inserted into the attachment hole 23, the fixture main body 5 is moved downward against the biting force, and the receiving piece 14 abuts on the inner surface of the ceiling surface 13. At this time, since the elastic operating piece 12 is pressed against the outer surface between the two engaging grooves 3, the pressing pieces 11, 11 are not inserted into the engaging grooves 3, so that the mounting body 5 is smoothly moved. Is lowered. In the case where the fixture main body 5 is lowered to the lower end of the engagement groove 3 and a relatively heavy instrument such as an emergency light is used, the weight of the instrument main body 1 is applied to the receiving piece portion 14 of the fixture main body 5, This receiving piece
The pressure contact pieces 11, 11 are slid on the ceiling surface 13 by the load applied to the. Then, the pressing pieces 11, 11 are inserted into the engaging grooves 3 by the load applied to the receiving piece 14, and the locking edges 10 formed on both side edges of the pressing pieces 11, 11 are formed on both side edges of the engaging groove 3. The device main body 1 is held by the fixture main body 5 on the ceiling surface 13. In this state, due to the elasticity of the receiving piece 14,
The fixture main body 5 pushes the appliance main body 1 upward, and is held in a state where the edge frame 18 attached to the appliance main body 1 is in contact with the peripheral portion of the attachment hole 23 of the ceiling surface 13. In the case of a relatively light device such as a downlight, the elastic operating piece 12 is pressed against the outer surface between the two engaging grooves 3 before the pressing piece 11 is inserted into the engaging groove 3. Then, the appliance body 1 is held on the ceiling surface 13 by the pressing force of the elastic operating piece portion 12.

When removing the fixture main body 1 from the mounting hole 23 of the ceiling surface 13, after removing the reflecting mirror 16, the fixture main body 5 is moved upward while holding the operation piece 9 of the fixture main body 5, The side edges of the press-contact pieces 11, 11 of the fixture main body 5 are engaged with the inclined edges 3a formed on both sides of the upper part of the engagement groove 3 of the appliance main body 1, so that the fixture main body 5 is held at the upper part. As a result, the substrate portion 6 is moved to the outside of the instrument body 1 and is attached to the outer surface of the fixture body 5, and the instrument body 1 can be removed from the attachment hole 23 in this state.

In the structure of the above embodiment, the elastic operating piece 12 protrudes from the substrate 6 of the fixture body 5 and the elastic operating piece 12 is pressed against the outer surface between the two engaging grooves 3. When the mounting body 5 is moved up and down, the pressure contact pieces 11, 11 are not inserted into the engagement grooves 3, so that the mounting body 5 can be lowered smoothly, and the mounting body 5 can be relatively moved like a downlight. In the case of a light-weight instrument, before the pressure contact piece 11 is inserted into the engagement groove 3, the elastic operation piece 12 is pressed against the outer surface between the two engagement grooves 3, and the elastic operation piece 12 The appliance body 1 is the ceiling surface by the pressing force
Although the structure held by 13 has been described, the present invention is not limited to this structure, and the elastic piece 12 is not necessarily required.

〔The invention's effect〕

ADVANTAGE OF THE INVENTION According to this invention, the press-contact piece part of a fixture main body bites into the engagement groove of an instrument main body and is locked, and there is no slip compared with the structure which abuts a press-contact piece part on the outer surface of an instrument main body, It can be securely held on the ceiling surface, and the upper edge of the engagement groove is inclined so that it gradually narrows upward, so the engagement piece of the fixture body is inserted into the engagement groove of the instrument body Then, the engaging piece is slidably engaged with the engaging groove in the upward direction, and the fitting body is engaged with the fitting body when the fitting body is blown to the ceiling surface after the fitting body is attached to the fitting body. By sliding over the upper part of the groove and engaging and biting both sides of the pressure contact piece into the inclined edge of the engagement groove in a wedge shape, the fixture body can be held at the upper part of the engagement groove,
In this state, the fixture main body can be inserted into the mounting hole on the ceiling surface without any operation such as holding down the fixture main body by hand, and the holding or lowering operation of the fixture main body can only be performed by moving the fixture main body up and down. Operability is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fixture for a lighting fixture showing one embodiment of the present invention, and FIG. 2 is a sectional view of a part of the lighting fixture. 1 ... instrument body, 3 ... engagement groove, 3a ... inclined edge, 5 ...
Attachment body, 6 ... board part, 7 ... engaging piece part, 8 ...
Locking piece, 11 ... Pressing piece, 13 ... Ceiling surface, 14 ... Receiving piece.

Claims (1)

(57) [Claims] An appliance body having an up-down engaging groove;
A fixture main body movably engaged with the engagement groove of the instrument main body and locked to an inner surface of the ceiling surface, wherein the fixture main body is substantially perpendicular to both side edges of the substrate portion; An engagement piece portion that is bent and movably engaged with the engagement groove of the device body, and is bent substantially outward at right and left ends at upper and lower portions of the tip edges of the two engagement pieces. The board includes a locking piece that is locked to an outer edge of an engagement groove of the instrument body, and a receiving piece that extends from a lower portion of the board and is in contact with an inner surface of the ceiling surface. At the upper part of the portion, press-contacting pieces are formed on both sides of the engaging groove which are inserted into the engaging groove and are pressed and locked to both side edges of the engaging groove, and upper end side edges of the engaging groove are provided. An embedded lighting fixture characterized by having an inclined edge so as to gradually become narrower toward the upper side.