JPH069373Y2 - Ceiling embedded lighting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a ceiling-embedded luminaire which is inserted into a mounting opening formed in a ceiling to be mounted.

(Prior Art) As a lighting fixture of this type, as seen in Japanese Utility Model Laid-Open No. 58-115014, a leaf spring bent into a substantially V shape is attached to the peripheral surface of a tubular fixture body. It is known that the instrument body is attached to the ceiling by the elastic force of.

The structure of such a lighting fixture is shown in FIG. 3, where 1 is the fixture body, 2 and 2 are leaf springs, 3 is a flange-shaped abutment piece provided at the opening edge of the lower end of the fixture body 1, and a is the interior. , And b is a mounting port formed on the ceiling a. When mounting the instrument main body 1 on the ceiling a, the leaf springs 2 and 2 are respectively squeezed inward against the elastic force, and the instrument main body 1 is inserted into the mounting opening b from below. In response to this operation, the contact piece 3 contacts the lower surface of the ceiling a, and the leaf springs 2 and 2 are brought into pressure contact with the upper edge of the opening of the mounting opening b by the elastic expansion force.
The ceiling a is sandwiched between the flange 2 and the flange 3, and the appliance body 1 is attached to the ceiling a by such sandwiching.

(Problems to be Solved by the Invention) In such an attached state, when the thickness t of the ceiling a is sufficiently thick as shown in FIG.
Is strongly compressed against its elastic expansion force, so that the leaf spring 2 presses strongly against the upper edge of the opening of the mounting opening 5, and therefore the instrument body 1 can be stably mounted on the ceiling a. However, as shown in FIG.
If the thickness is thin, the leaf spring 2 cannot be greatly compressed, and therefore the pressure contact force between the leaf spring 2 and the upper edge of the opening of the mounting opening b is weak, and the instrument body 1 is easily vibrated. There was a problem that it slipped.

The present invention was made with this point in mind. Even when the ceiling is thin, the leaf spring can be compressed sufficiently to allow the fixture body to be stably attached to the ceiling. The purpose is to provide a shaped luminaire.

[Structure of the Invention] (Means for Solving the Problem) In order to achieve such an object, the invention has a contact piece at the opening edge at the lower end and a leaf spring bent in a substantially V shape on the peripheral surface. The provided instrument main body is inserted into a mounting opening formed in the ceiling from below to bring the contact piece into contact with the lower surface of the ceiling,
In a case where the ceiling is attached to the ceiling by the elastic force of the leaf spring with the abutment piece and the leaf spring, the bent portion of the leaf spring is projected below the abutment piece. It was done.

(Function) The bent portion of the leaf spring largely projects below the contact piece, that is, below the lower surface of the ceiling. Therefore, as shown by the chain line in FIG. However, the leaf spring is sufficiently compressed on the peripheral surface side of the instrument body, so that the instrument body can be stably attached to the ceiling.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

Reference numeral 10 is an instrument body formed in a cylindrical shape.
The socket 11 is installed in the device 0, and the instrument body 1
Strip plate-shaped contact pieces 12, 12 are attached to the opening edge at the lower end of 0 on opposite sides. These contact pieces 1
The reference numerals 2 and 12 extend horizontally to the outside of the instrument body 10 and have openings 13 and 13 formed at the bases thereof.

A disc-shaped cover 14 is provided on the lower surface side of the instrument body 10, and the cover 14 includes the contact pieces 12, 1
It is supported horizontally through the tip of 2 and this cover 1
4 has a circular through hole 15 formed in the center thereof.
The lower end of the socket 11 is fitted to the socket 1, and the socket 1
A lamp 16 is attached to the No. 1.

At the lower end of the instrument body 10, plate springs 17 and 17 are provided that are bent in a substantially V shape at the portions corresponding to the contact pieces 12 and 12, respectively. These leaf springs 17,
17 is one leg 1 extending from the bent portion 18, 18.
9 and 19 are fixed to the peripheral surface of the instrument body 10 via screws 20 and 20, and the other leg portions 21 and 21 project to the outer peripheral side of the instrument body 10. The bent portions 18, 18 of the leaf springs 17, 17 project below the contact pieces 12, 12 with a relatively large dimension 1 through the openings 13, 13 formed in the contact pieces 12, 12.

When attaching the instrument body 10 to the ceiling a, the leaf spring 17,
17 is inserted inward, the instrument main body 10 is inserted into the mounting opening b from below, and the contact pieces 12 and 12 are brought into contact with the lower surface of the ceiling a, and the contact pieces 12 and 12 and the leaf springs 17 and 17 are connected. The ceiling a is attached to the legs 21 and 21 to support the instrument body 10.

Here, the bent portions 18, 18 of the leaf springs 17, 17 contact the contact piece 1.
2 and 12, that is, below the lower surface of the ceiling a, project greatly, and as shown by the chain line in FIG. 1, even if the thickness a of the ceiling a is thin, the leaf springs 17, 17
Leg portions 21 and 21 are sufficiently compressed to the peripheral surface side of the instrument body 10, and these leaf springs 17 and 17 strongly press against the upper edge of the opening of the mounting opening b, thus stabilizing the instrument body 10 on the ceiling a. Can be installed.

Further, the bent portions 18, 18 of the leaf springs 17, 17 are exposed below the contact pieces 12, 12, but the bent portions 18, 18 are not exposed.
Is covered with the cover 14, and thus can keep a good appearance.

[Effect of the Invention] As described above, according to the present invention, even when the thickness of the ceiling is thin, the leaf spring is strongly pressed against the upper edge portion of the opening of the mounting port to stably stabilize the fixture main body. It has the advantage that it can be installed on.

[Brief description of drawings]

FIG. 1 is a sectional view of a ceiling-embedded luminaire according to an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a side view of a conventional ceiling-embedded luminaire. 10 ... Instrument main body, 12 ... Abutment piece, 17 ... Leaf spring, 18 ... Bending part, a ... Ceiling, b ... Attachment port.

Claims (1)

[Scope of utility model registration request] 1. An instrument main body having an abutment piece at an opening edge of a lower end thereof and a leaf spring bent substantially in a V shape on a peripheral surface thereof is inserted into a mounting opening formed in a ceiling from below, and In a case where an abutment piece is brought into contact with a lower surface of a ceiling, and the abutment piece and the leaf spring sandwich the ceiling with the elastic force of the leaf spring to attach the instrument body to the ceiling, the bent portion of the leaf spring A ceiling-embedded luminaire, characterized in that a projection is made below the contact piece.