JPS59661Y2 - lighting equipment - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a lighting fixture with variable illumination direction.

Conventionally, lighting fixtures with variable lighting direction that are embedded in walls, etc.
1. For example, as shown in FIG. 4, a device main body 2 is rotatably mounted on a frame 1, and an elastic material such as felt 3 is attached to the frame 1 so as to face the outer peripheral surface of the quadratic rotational curved surface of the device main body 2. installation,
The frictional force between the felt 3 and the instrument body 2 holds the instrument body 2 in the rotating position.

However, in such a conventional structure, in order to reliably hold the instrument body 2 in its rotational position, the felt 3 must be strongly pressed against the outer peripheral surface of the instrument body 2. When rotating the instrument body 2, there is a risk that it may not move smoothly.

Furthermore, since the felt 3 must be pasted within the frame 1 over the entire circumference of the instrument body 2, the adhesive tends to protrude and spoil the appearance, and it is also very difficult to control the dimensions of the felt 3, and the felt 3 may absorb moisture. Due to the high adhesiveness, a large amount of adhesive must be used, and assembly workability is also poor.

In addition, structures have been developed in which coil springs or leaf springs are pressed into contact with the outer circumferential surface of the instrument body instead of felt.
Similarly, since the spring is pressed into contact with the instrument body, the instrument body does not move smoothly when rotated, resulting in poor workability.Also, the spring rubs against the instrument body, making it easy to damage the instrument body. ing.

The present invention was developed in view of the above-mentioned drawbacks, and it supports the main body of the instrument with respect to the frame body so that the direction of light irradiation can be freely supported in any direction, and also allows smooth rotation of the main body of the instrument to adjust the direction of irradiation.
Moreover, the present invention provides a lighting fixture that can be supported reliably, has improved appearance, and can be obtained at low cost.

Next, the structure of an embodiment of the present invention will be explained with reference to FIGS. 1 to 3.

Reference numeral 10 denotes an annular decorative frame body, and as shown in detail in FIG. 3, this frame body 10 is formed to have a substantially rectangular cross section, and an insertion portion 11 that is opened in the shape of a groove on the outer circumferential side is formed on the upper surface. An insertion guide edge 13 extends upward from the outer edge 12 of the insertion portion 11 .

Further, an annular engagement groove 14 communicating with the insertion portion 11 is formed on the inner peripheral side of the frame body 10.

Further, the insertion guide edge 1 is provided on the outer peripheral edge of the upper surface of this retaining groove 14.
An annular guide edge 15 is formed facing the guide edge 3 and bent upward, and an insertion groove 16 is formed between the two guide edges 13.15.

Reference numeral 17 denotes a device main body, and this device main body 17 has a rotationally quadratic curved surface portion 18 having a substantially spherical shape, a light projection opening 19 is provided at the lower end, and a lamp socket is provided at the inner upper part of the device main body 17. 21 is attached, and a lamp 22 such as an incandescent light bulb is attached to this lamp socket 21.

A pair of supports 23 are fastened to, for example, both sides of the outer peripheral surface of the instrument main body 17 with screws 24 and nuts 25 for supporting the instrument main body 17 so as to be rotatable in a vertical plane.

Each of the pair of supports 23 has a vertical attachment piece 26.
a horizontal piece 27 newly bent outward from the lower end; and an engaging piece 28 bent downward from the tip of the horizontal piece 27.
A wire rod forming the engaging portion 30 is fixed to the lower end bent piece portion 29 of the engaging piece portion 28 of the pair of supports 23 by welding or the like, and is fixed to the pair of supports 23, respectively. The engaging portions 30 are arranged to face each other, and the engaging portions 30 slide in the engaging grooves 14 of the frame 10, so that the instrument body 17 is supported rotatably in a horizontal plane. .

The retaining portion 30 is expanded to the left and right so that the distal ends thereof are spaced apart from each other.

Further, a pair of mounting rods 31 are disposed on both sides of the frame 10 so as to be located, for example, between the engaging portions 30 provided on the pair of supports 23, and the pair of mounting rods 31 are connected to coil springs. The center portion of the mounting rod 31 is attached to the frame 10, and a spring force is applied to both ends of the mounting rod 31 in the direction of expanding it, so that the mounting rod 31 is compressed against the elastic force. However, it is inserted and locked into a locking groove of a mounting frame 32 fixed to the ceiling of a building or the like.

Next, the operation of this embodiment will be explained.

Attachment pieces 26 of the support 23 are provided on both sides of the outer peripheral surface of the instrument body 2.
is properly tilted in the vertical direction and tightened and fixed with screws 24 and nuts 25.

Next, the engaging portion 30 of the support 23 attached to the instrument body 17
When inserted into the insertion portion 11 through the insertion groove 16 between both guide edges 13, 15 of the frame body 10, the engagement portion 30 inserted into the insertion portion 11 is engaged with the engagement groove 14 with appropriate friction. .

In this state, the support 23 is fixed to the instrument main body 17 in an inclined manner, so that the light emitting opening 19 faces in an inclined direction with respect to the vertical direction.

Then, the mounting rods 31 of the frame body 10 are locked to the mounting frame 32 attached to the structure.

When adjusting the irradiation direction, when the instrument body 17 is rotated in the horizontal direction, the support 23 also rotates together with the instrument body 17, and the engagement portion 30 of the support 23 engages the engagement groove 14 of the frame 10.
is rotated in a horizontal plane until the support 23 hits the mounting rod 31, and at that adjusted position, the engagement portion 30 is inserted into the engagement groove 1.
4 and is held in its adjusted position by being engaged with moderate friction.

Since the instrument main body 17 is attached with the support 23 inclined at an appropriate angle, by rotating the instrument main body 17 in the horizontal direction, the direction of the light projection opening 19 is changed and the irradiation direction can be adjusted.

According to the present invention, the retaining portion is inserted through the annular insertion portion of the frame into the support to which the instrument body is rotatably attached in a vertical plane, and slidably engages with the annular retaining groove. is provided, and the instrument body is supported by the support so that it can freely rotate within a horizontal plane, so that the engaging portion of the support can rotate freely relative to the frame by sliding in the engagement groove of the frame, The main body of this instrument is supported by the support so that it can freely rotate in a vertical plane, and the engaging part slides in the retaining groove of the frame, so that the main body of the instrument is supported so that it can freely rotate in a horizontal plane. The light irradiation direction of the instrument body can be adjusted in any direction, and the adjustment of the irradiation direction can be maintained reliably. No screws are exposed on the frame, and the appearance is good. It has good workability and is made of felt all around the device body.
There is no need to use a spring or the like, and since there is no direct rubbing on the instrument body, there is no risk of damaging the instrument body, and it can be assembled at low cost.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view of a lighting fixture showing an embodiment of the present invention, Fig. 2 is a partially cutaway bottom view of the same, and Fig. 3
The figure is a perspective view of a portion of the same azusa body, and FIG. 4 is a partially cutaway front view of a conventional lighting fixture. 10... Frame body, 11... Insertion part, 14
...Engagement groove, 17 ... Instrument body, 18
. . . rotation quadratic curved surface portion, 23 . . . supporting tool, 30 . . . engaging portion.

Claims (1)

[Scope of utility model registration request] It consists of an instrument body having a rotational quadratic curved surface, and a frame fitted to the rotational quadratic curved surface of the instrument body, and the frame has an annular insertion section opening in the upper surface and communicating with the insertion section. an annular retaining groove, and a retaining part inserted through the insertion part of the frame body and slidably engaged with the retaining groove, supporting the instrument main body rotatably in a horizontal plane. A lighting device characterized in that the device main body is attached to a plurality of supports so as to be rotatable in a vertical plane.