JPH062168Y2 - Recessed luminaire - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention relates to an embedded luminaire provided in a mounting portion such as a ceiling surface.

(Prior Art) This type of embedded luminaire is disclosed in JP-A-60-10720.
As disclosed in Japanese Patent Publication No. 1 and Japanese Utility Model Laid-Open No. 62-71811, a cylindrical chassis having a light source housed therein is provided, and the chassis is inserted into an opening formed in a ceiling surface as a mounting portion and supported. It is designed to be supported and fixed with tools.

The support is slidably provided on the side surface of the chassis, that is, a relatively wide slit is formed on the side surface of the chassis along its longitudinal direction, and the upper end of the slit is continuous with the slit. A cutout opening for introducing a support tool is formed, the support tool is introduced into the slit through the cutout opening, and both side plates facing each other provided on the support tool are provided on the side edges of the slit by the expanding elastic force. It is constructed so that the supporting member can be appropriately moved along the slit by pressing it, holding the supporting member in a predetermined position by this pressing force, and squeezing the both side plates inward. ing.

(Problems to be solved by the invention) However, with such a conventional structure, when both side plates of the support tool are closed inward and the support tool is slid and moved, the both side plates are closed more than necessary. Deformation beyond the elastic limit, resulting in insufficient pressure contact force when both side plates are returned and pressed against both side edges of the slit, making it difficult to properly support and fix the chassis to the ceiling surface. There is. Further, since a wide slit is formed on the side surface of the chassis and a notch opening for introducing a support is formed at the upper end of the slit, the strength of the chassis is lowered.

This invention was made in view of such a point, and it is an embedded type that can prevent the inconvenience of deforming both side plates of the support tool beyond the elastic limit and can avoid the deterioration of the strength of the chassis. It is intended to provide a lighting fixture.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention includes a cylindrical chassis and a supporter slidably provided on the side surface of the chassis. Then, the chassis is inserted into the opening of the mounting portion, and the chassis is supported and fixed to the mounting portion via the support tool.In the side surface of the chassis, a pair of slits are arranged in parallel along the longitudinal direction. The support member is formed of an elastically deformable plate member and integrally has a pair of side plates facing each other, and a step portion is formed at an intermediate portion of the side plates, and the side plate is a slit of the chassis. The side plate is pressed against the side edges of these slits by the expansion elastic force of the side plate through the step portion, and the support is held by the chassis by this pressure contact force, and the both side plates are expanded and expanded. Power And releasing the pressure contact force by Tsubomeru by anti is a support that allows sliding along the slit.

(Operation) When the chassis is attached to a mounting portion such as a ceiling surface, first, both side plates of the support tool are closed inward to release the pressure contact force against the side edge of the slit and the support tool is slid along the slit to a predetermined position. Hold in position. At this time, the plate material of the chassis between the both side plates is interposed between the both side plates, so that the range in which the both side plates are closed is properly regulated by the plate material, and therefore the both side plates are deformed until the elastic limit is exceeded. There is no such thing.

Further, a pair of slits having a relatively narrow width may be formed in the chassis, and it is not necessary to form a notch opening for introducing a support as in the conventional case, and therefore the strength of the chassis is not reduced.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 3, a is a ceiling in the room, b is an opening formed in the ceiling a, and the chassis 1 of the lighting fixture is inserted into the opening b. The chassis 1 is formed in a tubular shape whose lower end is open, and a flange 2 is integrally provided on the opening edge of the lower end. The incandescent lamp 4 as a light source is housed inside the chassis 1 through the socket 3, and the supporting tools 6 and 6 are mounted on both side portions of the chassis 1, and the chassis 1 is mounted through the supporting tools 6 and 6. It is supported and fixed to the ceiling a.

The mounting structure of the support 6 to the chassis 1 will be described. As shown in FIG. 1 and FIG. 2, a pair of relatively narrow slits 5 and 5 are parallel to the side surface of the chassis 1 along the longitudinal direction thereof. Has been drilled. The support 6 is integrally formed of elastically deformable plate material such as spring steel, and a pair of side plates 8 and 8 extend substantially at right angles from both side edges of the base 7 so as to face each other, and from the lower end edge of the base 7. The locking piece 9 extends obliquely downward. Steps 11 and 11 are formed in substantially middle portions of the side plates 8 and 8, respectively.
Clamping pieces 12 and 12 formed by cutting and raising are formed on one side surfaces 11a and 11a of reference numerals 1 and 11, respectively, and leading edges of the clamping pieces 12 and 12 face the other side surfaces 11b and 11b of the step portions 11 and 11, respectively. is doing.

The distance between the side plates 8 and 8 of the support 6 is A,
When the protruding height of each step 11, 11 is B, the distance between the outer side edges of the slits 5, 5 arranged in parallel is C, and the width of each slit 5.5 is D, A> C , B> D.

The support tool 6 is attached to the chassis 1 through the slit 5.5. The procedure for attaching the support tool 6 is as follows.
Supports 6 are arranged on the outer peripheral side of the both side plates 8.8 in this state.
Elastically squeezed inwardly to allow the side plates 8.8 to pass through the slits 5.5, respectively, and then to release the side plates 8.8. In response to this release, each side plate 8.8 elastically expands, and this expansion causes the side plates 8.8 to form slits 5.
The side surface of the slit 5 is brought into contact with the side edge of the slit 5, and the support 6 is held at a predetermined position in the longitudinal direction of the slit 5.5 by this pressure contact force. Further, at this time, the side edge of the slit 5.5 and the side edge 11b. It is sandwiched with 11b, and thereby the support 6 is held more stably.
A support 6 is also provided on the opposite side surface of the chassis 1 with the same structure.

On the other hand, the procedure for attaching the chassis 1 to the ceiling a will be described. First, the side plates 8.8 of each support 6 are closed inward to release the pressure contact force of the side plate 8.8 against the side edges of the slit 5.5. In this state, the support 6 is slid along the slit 5.5, and the front edge of the locking piece 9 of the support 6 and the chassis 1 are slid.
The distance between the support tool 6 and the flange 2 is adjusted to be approximately the same as the thickness and width of the ceiling a, and the support tool 6 is held at that position. Then, in such a state, as shown in FIG. 4 (a), the chassis 1 is inserted into the opening b of the ceiling a from below. In response to this insertion, the locking piece 9 of the support 6 passes through the peripheral edge of the opening b while elastically deforming toward the side surface of the chassis 1, and after this passage, as shown in FIG. 9 returns to the inclined state by its own elastic force, the tip edge of the locking piece 9 abuts the upper surface of the ceiling a with this, and the peripheral edge of the opening b is sandwiched between the tip edge and the flange 2. And the chassis 1 is supported and fixed to the ceiling a.

By the way, when adjusting the position of the support tool 6, the both side plates 8.8 of the support tool 6 are closed inward as described above. However, the slits 5. 5, the plate member 1a of the chassis 1 is interposed between them, so that the range in which the side plates 8.8 are closed is properly regulated by the plate member 1a, and therefore the side plates 8.8 are deformed until they exceed the elastic limit. Therefore, the side plates 8.8 always have a predetermined elasticity so that the slits 5.5 can be prevented.
The side edges of the support 6 are securely pressed against each other, so that the support 6 can always be held accurately at a predetermined position.

On the other hand, by forming the slit 5.5 having a relatively narrow width in the chassis 1, it is not necessary to form the notch opening for introducing the support as in the conventional case, and therefore the strength of the chassis 1 is reduced. There is no advantage.

FIG. 5 shows another embodiment of the present invention, in which the base 7 of the support 6 is provided so as to be inclined with respect to the step 11, and the locking piece 9 is arranged on the same straight line as the base 7. Is provided in
Further, a non-slip piece 20 inclined inwardly is formed on the upper end edge of the base portion 7 so as to extend constantly. Then, when the chassis 1 is inserted into the opening b of the ceiling a, both side plates 8.8 are pushed into the inside of the chassis 1 with the holding pieces 12 lying down so that the base portion 7 is arranged along the side surface of the chassis 1. Then, in this state, the chassis 1 is inserted into the opening b, and after this insertion, the side plates 8.8 are pushed outward from the inside of the chassis 1 to form the base portion 7.
Is inclined so that the leading edge of the locking piece 9 is brought into contact with the upper surface of the ceiling a and the leading edge of the anti-slip piece 20 is brought into contact with the side surface of the chassis 1, respectively. Further, in such a structure, both side edges of the support tool 6 are pressed against the slits 5.5, and the anti-slip pieces 20 further contact the side surfaces of the chassis 1, so that the chassis 1 is supported and fixed in a more stable state. can do.

[Effect of the Invention] As described above, according to the present invention, there is no possibility that the both side plates of the support member are deformed beyond their elastic limits.
For this reason, both side plates of the support can be pressed against the side edges of the slits at a predetermined pressure at all times and securely held at a predetermined position, which allows the chassis to be properly supported and fixed at the mounting position, and the width of the chassis can be simply adjusted. Since it is only necessary to form a pair of narrow slits, there is an advantage that the strength of the chassis can be prevented from being reduced and its accidental deformation can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of an embedded luminaire according to an embodiment of the present invention, FIG. 2 is a sectional view of the same, FIG. 3 is a front view of the same, and FIG. 4 is a chassis of the same luminaire. FIG. 5 is a sectional view for explaining the procedure of mounting on the ceiling, and FIG. 5 is a sectional view showing another embodiment of the present invention. 1 ... Chassis, 5 ... Slit, 6 ... Supporting tool, 8 ... Side plate,
11 ... Step, a ... Ceiling (mounting part), b ... Opening.

Claims (1)

[Scope of utility model registration request] 1. A cylindrical chassis, and a supporting member slidably provided on a side surface of the chassis, the chassis being inserted into an opening of a mounting portion, and the chassis having the supporting member interposed therebetween. In the case of being supported and fixed to the mounting portion, a pair of slits are formed in parallel on the side surface of the chassis along the longitudinal direction thereof, the support tool is formed of elastically deformable plate material, and a pair of side plates facing each other is formed. It has it integrally, and a step portion is formed in the middle part of these side plates, the side plate is inserted into the slit of the chassis, and the side edge of these slits is interposed by the expanding elastic force of the side plate through the step portion. The side plates are pressed against each other, and the supporting member is held by the chassis by this pressing force, and the pressing members are released along the slit by closing the both side plates against the expanding elastic force. Slur Embedded luminaires, characterized in that to allow de.