JP2629050B2 - 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 luminaire of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 60-107201.
As described in Japanese Patent Application Laid-Open Publication No. H10-260, an engaging groove is formed in the vertical direction of the device main body, and the engaging pieces respectively bent from both sides of the fixture main 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 main body, and the press contact pieces formed on both sides of the fixture main body are removed. A structure is employed in which the device main body is engaged with the outer surfaces on both sides of the engagement groove of the device main body, and the lower end protruding portion of the fixture body is in contact with the back side of the ceiling surface to hold the device main body.

(Problems to be Solved by the Invention) In the lighting fixture having the above-mentioned conventional structure, the press contact pieces formed on both sides of the fixture main body are configured to engage the fixture main body with both outer surfaces of the engagement grooves of the fixture main body. There is a problem that the pressing force of pressing the pressing piece against the tool body becomes uncertain, and the tool body is displaced downward.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an embedded lighting device that can securely hold a device main body on 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, an engagement piece that is bent outwardly at a substantially right angle to each of the tip edges of the two engagement pieces and is engaged with the outer edge of the engagement groove of the instrument body; A press-contacting piece portion formed on both side edges, which is provided on the upper side of the substrate portion, is inserted into the engagement groove, and is pressed and locked on both side edges of the engagement groove; A receiving piece extending and abutting against the inner surface of the ceiling surface, and a contact edge formed in an arc shape at a lower portion of the receiving piece. And a curved portion having the following.

(Effect) In the embedded lighting device of the present invention, the locking piece of the fixture main body is inserted into the engagement groove from outside the device main body, and the engagement piece is slidably inserted into the engagement groove in the vertical direction. By engaging, the fixture body is attached to the instrument body. In this state, the instrument body is inserted into the mounting hole on the ceiling surface. Then, in a state where the mounting body has passed through the mounting hole on the ceiling surface, the engaging piece of the mounting body is lowered along the engaging groove, and the receiving piece formed at the lower portion of the substrate portion of the mounting body is mounted on the ceiling. When contacting the inner surface of the surface, the abutting edge of the receiving piece slides on the inner surface of the ceiling surface, the press-contacting piece is inserted into the engaging groove of the appliance body, and the engaging edges of both side edges thereof engage with the engaging groove. The wedge-shaped biting engagement is performed on both side edges of the engagement groove, and the engagement piece is engaged with the inner peripheral edge of the engagement groove,
The instrument body is held in the mounting hole.

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

In FIG. 2, reference numeral 1 denotes an appliance body, which is formed in a substantially U-shaped cross section with its lower surface opened, as shown in FIG. Two engagement grooves 3 are formed in the vertical direction in parallel with each other, and insertion grooves 4 are respectively formed on both upper outer sides of the engagement grooves 3.

Reference numeral 5 denotes a fixture main body. The fixture main body 5 is molded of a metal plate material, a synthetic resin, or the like, and is movably engaged with the two engaging grooves 3 of the appliance main body 1 and is engaged with the inner surface of the ceiling surface. A left and right engagement pieces 7 which are bent at substantially right angles from both side edges of the substrate 6 and are respectively movably engaged with the engagement grooves 3 of the device main body 1; An engagement piece 8 which is cut and raised at a substantially right angle toward the outside at a tip edge of the engagement piece 7 and is bent and locked to both outer edges of the engagement groove 3 of the instrument body 1; It has an operation piece 9 extending from the tip of each of the engagement pieces 7.
Locking edges 10 extending from the upper edge of the substrate portion 6 are respectively inserted into the two engaging grooves 3, bite into the two side edges of the engaging groove 3, and are locked by being pressed into contact with the both side edges. Pressed piece
The two pressure contact pieces 11 and 11 are formed in a tapered shape in which the tip ends are narrowed. In addition, the substrate section 6
At the upper edge, an elastic operating piece portion 12 whose front end is pressed into contact with the outer surface between the two engaging grooves 3 from between the two pressure contacting pieces 11, 11 is projected. The elastic operating piece 12 comes into contact with the outer surface of the instrument body 1 before the press contact pieces 11, 11 are inserted into the engaging groove 3. 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. The tip of the receiving piece 14 is
The curved portion 15 is formed to be narrower and folded so that the bent portion has an arc shape, and the arc portion of the curved portion 15 is in contact with the inner surface of the ceiling surface 13. An abutment edge 16 is formed. In addition, the board portion 6 of the fixture body 5
A hooking claw portion 17 is provided on both sides of the upper portion of the device main body 1 so as to be engaged with insertion grooves 4 formed on both sides of the engagement groove 3 of the device main body 1 so as to be detachably engaged therewith.

In FIG. 2, reference numeral 18 denotes a reflecting mirror.
Is provided on the instrument body 1 and has an irradiation opening on the lower surface. A peripheral edge 19 formed by bending the lower edge of the reflecting mirror 18 outward is provided on an edge frame 20 attached to a lower portion of the instrument body 1.
And is attached to the instrument body 1. Further, the reflecting mirror 18 is supported by a support 22 provided on the instrument body 1, and a lamp 24 mounted on a socket 23 provided on the instrument body 1 is included in the reflecting mirror 18. ing. In this way, the fixture is
In the mounting hole 25.

 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.
The operation piece 9 is inserted obliquely from the insertion grooves 4 formed on both outer sides of the upper part of the engagement groove 3, and the engagement piece 8 is also inserted obliquely from the insertion groove 4. When the clamping piece 7 is released while being inserted into the groove 3, the fixture main body 5 is movably attached along the engagement groove 3 of the instrument body 1. Then, the fixture main body 5 is moved upward along the engagement groove 3 of the appliance main body 1, and the engagement groove 3 of the appliance main body 1 is moved.
In the insertion grooves 4 formed on both sides of the upper part of the
The fixture body 5 is held above the engaging groove 3 by inserting and locking the hooking claw portions 17 formed on both sides of the upper portion of the substrate portion 6.

In addition, when mounting the device, the device main body 1 is inserted from below the mounting hole 25 of the ceiling surface 13. At this time, since the mounting body 5 has the substrate portion 6 held substantially parallel to the outer surface of the instrument body 1, the mounting body 5 does not contact the receiving piece 14 with the edge of the mounting hole 25. It is inserted into the mounting hole 25. Then, after the fixture main body 5 is inserted through the attachment hole 25, the fixture main body 5 is moved upward, the hooking claw 17 is removed from the insertion groove 4, and the fixture main body 5 is lowered, and the receiving piece part is lowered. 14 is brought into contact with 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 of an instrument having a relatively heavy weight such as an emergency light, the weight of the instrument body 1 is reduced to a level corresponding to the receiving piece 14 of the fixture body 5 with the fixture main body 5 lowered to the lower end of the engagement groove 3. The load applied to the contact edge 16 and applied to the receiving piece 14 causes the contact edge 16 of the receiving piece 14 to slide smoothly on the ceiling surface 13. Then, by the load applied to the contact edge 16 of the receiving piece 14, the pressure contact pieces 11, 11
Is inserted into the engaging groove 3, and the locking edges 10 formed on both side edges of the press contact pieces 11, 11 are wedge-shaped and pressed into the both side edges of the engaging groove 3, and the appliance body 1 is attached to the ceiling surface 13 by the mounting tool. It is held by the main body 5. In this state, due to the elasticity of the receiving piece part 14, the fixture body 5 pushes up the instrument body 1 upward, and the edge frame 20 attached to the instrument body 1 comes into contact with the peripheral edge of the attachment hole 25 of the ceiling surface 13. Will be retained. In the case of a relatively light instrument such as a downlight, the pressure contact piece 11 is provided with the engaging groove 3.
Before being inserted into the device, the elastic operating piece 12 is pressed against the outer surface between the two engaging grooves 3, and the appliance body 1 is held on the ceiling surface 13 by the pressing force of the elastic operating piece 12.

When the fixture body 1 is to be removed from the mounting hole 25 of the ceiling surface 5, the reflector 18 is removed, the operation piece 9 of the fixture body 5 is sandwiched, and the fixture body 5 is moved upward. By inserting the hooking claws 17 formed on both upper sides of the base plate 6 of the fixture body 5 into the insertion grooves 4 formed on both upper sides of the engagement groove 3 of the instrument body 1, the base plate unit is locked. 6
Is moved toward the outer surface of the instrument body 1 and is attached to the outer surface of the fixture main body 5.
Can be removed from 25.

Next, another embodiment will be described with reference to FIG. In the embodiment shown in FIG. 3, a tip piece 25 is formed at the tip of the curved portion 15 shown in FIG. Are cut and raised.

Then, in a state where the fixture main body 5 is lowered to the lower end of the engagement groove, the contact edge 16 of the receiving piece part 14 comes into contact with the ceiling surface 13 and slides, and further, the fixture main body 5 is engaged. When the lower end of the groove 3 is lowered, the tip of the locking claw 26 comes into contact with and abuts on the ceiling surface 13.
Then, the fixture body 5 is locked to the ceiling surface 13, and the fixture body 5 is fixed to the fixture body 1.

In addition, as shown in FIG. 4, one locking claw 26 may be formed by cutting and raising one at the center of the receiving piece 14. Further, a tapered piece 27 is formed at the tip of the tip piece 25 in FIG.

In the structure of each of the above-described embodiments, the elastic operating piece 12 is provided so as to protrude from the substrate section 6 of the fixture main body 5.
Are pressed against the outer surface between the two engaging grooves 3, so that the pressing pieces 11, 11 are not inserted into the engaging grooves 3 when the mounting body 1 moves up and down, so that the mounting body 5 is smooth. In the case of an instrument that is relatively light in weight, such as a downlight, the elastic operating piece 12 engages with the elastic working piece 12 before the pressure contact piece 11 is inserted into the engaging groove 3. The structure has been described in which the appliance main body 1 is pressed against the outer surface between the grooves 3 and is held by the ceiling surface 13 by the pressing force of the elastic operating piece 12, but is not limited to this structure. 12 is not necessary.

Further, in the structure of each of the above embodiments, hook claws 17 are formed on both upper sides of the substrate section 6 of the fixture main body 5, and the hook claws 17 are formed on both upper sides of the engagement grooves 3 of the instrument body 1. By being inserted and locked into the formed insertion groove 4, the mounting fixture body 1 is
Has been described above as being held above the engagement groove 3, but the present invention is not limited to this structure. For example, elasticity is imparted to the two engaging pieces 7 of the fixture body 5 so that the two engaging pieces 7 are pressed against both side edges of the engaging groove 3.
It is also possible to adopt a structure in which the attachment body 5 is elastically held above the engagement groove 3. In this structure, both engagement pieces 7
Is lightly nipped against the elastic force to move the engaging groove 3 of the instrument body 1 and release the nipping of the engaging pieces 7, the two engaging pieces 7 are expanded by the elastic force, and the locking pieces 8 is elastically held at the outer edge of the engagement groove 3.

Further, in the structure of each of the above embodiments, the structure in which the operation piece 9 is formed has been described. However, the present invention is not limited to this structure, and the engagement piece 7 or the locking piece 8 also serves as the operation piece. It can also be structured.

〔The invention's effect〕

According to the present invention, the receiving piece portion slides smoothly on the ceiling surface by providing the arc-shaped abutting edge at the tip of the receiving piece portion of the fixture body, so that the pressure contact piece portion is engaged with the engagement groove of the appliance body. The device is securely locked in a wedge-shaped manner, does not slide as compared with a structure in which the pressure contact piece abuts against the outer surface of the device main body, and the device main body can be securely held on the ceiling surface.

[Brief description of the drawings]

FIG. 1 is a perspective view of a lighting fixture according to one embodiment of the present invention, FIG. 2 is a cross-sectional view of a part of the lighting fixture, and FIG. 3 is a lighting fixture according to another embodiment. Perspective view of the fourth
The figure is a partial perspective view of a fixture of a lighting fixture showing another embodiment. 1... Instrument body, 3... Engagement groove, 5.
6 ... board part, 7 ... engaging piece part, 8 ... locking piece part, 10 ...
... locking edge, 11 ... pressure contact piece, 13 ... ceiling surface, 14 ... receiving piece, 15 ... curved part, 16 ... contact edge.

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 that is bent and movably engaged with the engagement groove of the instrument body; and a front edge of each of the two engagement pieces that is bent outwardly at substantially a right angle, respectively. A locking piece that is locked to the outer edge of the engagement groove, and a locking projection that projects from the top of the substrate portion, is inserted into the engagement groove, and is pressed and locked to both side edges of the engagement groove. A pressure-contacting piece having edges formed on both side edges, a receiving piece extending from a lower portion of the substrate portion and abutting against an inner surface of the ceiling surface, and being bent in an arc shape at a lower portion of the receiving piece. And a curved portion having an abutting edge.