JPH1186784A - Downlight cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaner for downlight, whereby a reflecting surface of a downlight and a lighting lamp can be cleaned at the some time, without the use of a step ladder or the like, attain simplification and efficient operation of cleaning work. SOLUTION: In a cleaner for cleaning a reflecting surface of a downlight and a lighting lamp embedded in a ceiling surface, the cleaner comprises a rotary shaft 8, respective first/second/third lock rings 9, 10, 11 fixed to respectively tip and rear end parts and an intermediate part of the rotary shaft 8, a clamp cylinder 12 externally inserted to the rotary shaft 8 to be coming off lock fixed by the second/third each lock ring 10, 11 a mounting sleeve 13 externally inserted sliably in a part between the first and third lock rings 9, 11 to be pressed to a side of the first lock ring 9 at all times by a spring 20, a cover case 14 fixedly mounted in the mounting sleeve 13, a cleaning implement 15 mounted in a tip end of the rotary shaft 8 to have many flexible leg pieces normally retracted in the cover case 14, and a rotary means 16 connected to a rear end part of the rotary shaft 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a downlight reflecting surface and a downlight cleaner for cleaning an illuminating lamp in which an illuminating lamp is housed in a concave mirror buried in a ceiling surface.

[0002]

2. Description of the Related Art As shown in FIG. 6, for example, a downlight buried in a ceiling surface has a reflecting surface (1) such as an aluminum plate on the inner surface, and the opening (2) side faces downward. An illumination lamp (5) such as a light bulb or a fluorescent lamp is housed in a concave mirror (4) buried in the surface (3). As the concave mirror (4), there is a parabolic mirror or a cylindrical mirror. Cleaning of the reflecting surface (1) of the downlight (6) and the lighting (5) is mainly performed by the lighting (5).
It is performed at the same time when exchanging, because it is at a high place,
For example, climb on a stepladder, a ladder, or the like, and clean manually.

[0003]

The cleaning of the downlight buried in the ceiling surface is mainly performed on the stepladder when replacing the light bulb.
Since the work is performed manually, the work efficiency is low and it takes time and effort. In particular, in places where a large number of downlights are used, such as in a lobby or a floor of a building, a lot of manpower and time are required for cleaning.

An object of the present invention is to provide a downlight cleaner that can simultaneously clean the reflecting surface of a downlight and an illuminating lamp without using a stepladder or the like, and to simplify and improve the cleaning operation.

[0005]

According to the present invention, there is provided a downlight having a reflecting surface on an inner surface and an illumination lamp housed in a concave mirror buried in a ceiling surface with an opening side facing downward. What is claimed is: 1. A cleaning device for cleaning a reflecting surface and an illumination lamp, comprising: a rotating shaft; a first locking ring fixed to a front end of the rotating shaft; and a second locking fixed to a rear end of the rotating shaft. The ring and the rotation axis
A third locking ring fixed at a predetermined distance from the locking ring, and extrapolated to the rotating shaft via a bearing, and secured in the axial direction by the second locking ring and the third locking ring. Slidably inserted into the gripping cylinder and the portion of the rotating shaft between the first locking ring and the third locking ring.
A mounting sleeve pressed against the first locking ring, a cover case mounted on and fixed to the mounting sleeve, and a plurality of flexible leg pieces mounted on the tip of the rotating shaft, and are always pulled into the cover case. A cleaning tool, and a rotating means connected to the rear end of the rotating shaft. The cleaning tool is pushed up against the spring while the cover case is applied to the opening of the concave mirror. Is projected from the inside of the cover case to enter the concave mirror, and the reflecting surface and the illuminating lamp are simultaneously cleaned while rotating the cleaning tool via the rotating shaft by the rotating means.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a downlight cleaner according to the present invention will be described below with reference to FIGS. In the downlight cleaner (7) shown in FIGS. 1A and 1B, (8) is a rotating shaft, (9), (10), and (1).
1) is a first, second and third locking rings, (12) is a holding cylinder,
(13) is a mounting sleeve, (14) is a cover case,
(15) is a cleaning tool, and (16) is a rotating means.

The first locking ring (9) is fixed to the tip of the rotating shaft (8) by screws or the like. Second locking ring (1
0) is fixed to the rear end of the rotating shaft (8) by screws or the like. The third locking ring (11) is fixed to the rotating shaft (8) by screws or the like at a predetermined distance from the first locking ring (9).

As shown in FIG. 3, the gripping cylinder (12) is extrapolated to the rotating shaft (8) via bearings (17) and (18), and the second and third locking rings (10) ( 11) It is secured in the axial direction by the stopper, and a grip (19)
(Shown in FIG. 1).

As shown in FIG. 2, the mounting sleeve (13) includes a first locking ring (9) and a third locking ring (1) of the rotating shaft (8).
1) is slidably inserted outside of the portion between the first engaging ring (9) and elastically pressed toward the first locking ring (9) by the spring (20). The spring (20) has front and rear ends supported by thrust bearings (21) and (22),
Covered by a spring cover (23).

As shown in FIG. 2, the cover case (14) has a large-diameter opening (1) adapted to the opening of the concave mirror (24).
4a) and a substantially resin-made cup-shaped cup having a small-diameter cylindrical portion (14b), and the small-diameter cylindrical portion (14b) is mounted and fixed to the mounting sleeve (13). The cup body shape may be a substantially funnel-shaped cup body in which a bowl-shaped curved portion is formed as an inclined surface.

The cleaning tool (15) is made up of a number of flexible, somewhat waisted legs (M) made of, for example, a heat-resistant and insulating material.
And one end thereof is attached to a first locking ring (9) at the tip of the rotating shaft in the cover case (14). Cleaning tools (15)
Is normally drawn into the cover case (14).

The rotation means (16) is a rotation drive means externally connected to the rear end of the rotation shaft (8), for example, an electric driver, and rotationally drives the rotation shaft (8) in the circumferential direction. In addition, a drive motor may be built in instead of the external attachment, and a rotary lever (8) may be manually rotated by connecting a manual lever externally.

The operation of the present invention based on the above configuration will now be described. In the downlight cleaning device (7) according to the present invention, the mounting sleeve (13) and the cover case (14) are always elastically urged toward the tip end of the rotating shaft (8), and the cleaning tool (15).
Is housed in a cover case (14). As shown in FIG. 2, in order to clean the downlight (25) with the downlight cleaner (7), first grasp the holding tube (12) and remove the large-diameter opening (14a) of the cover case (14). Apply to the opening of the concave mirror (24).

In this state, when the gripping cylinder (12) is pushed up to the downlight (25) side against the spring (20), the cleaning tool (15) attached to the tip of the rotating shaft (8) is turned on. 14) It is pushed out from the inside and the concave mirror (2
4) Enter inside. Then, the cleaning tool (15) contacts the reflecting surface (26) and the illuminating lamp (27) with an appropriate contact pressure over the entire surface in accordance with the amount of pushing up of the gripping cylinder (12). In this state, the reflecting surface (26) and the illuminating lamp (27) are simultaneously cleaned while rotating the cleaning tool (15) via the rotating shaft (8) by the rotating means (16).

Next, another embodiment of the present invention will be described with reference to FIG.
5 (a) and 5 (b) and FIG. 5, the point different from the above embodiment is that the rotary shaft (29) is inserted into and out of the rotary cylinder (28) and temporarily fixed at a desired length. In addition, the length of the rotating shaft is made expandable and contractible. That is, the rotary cylinder (28) is a long rod-shaped cylindrical body, and a stopper screw (30) for temporarily fixing the rotary shaft (29) is provided near the front end. The rotating shaft (29) is inserted inside the rotating cylinder (28) so as to be able to freely enter and exit, is temporarily fixed by a stopper screw (30) at a desired length, and rotates integrally with the rotating cylinder (28) in the circumferential direction. At this time,
As shown in FIG. 5, when a slide groove (29a) is formed in the rotation shaft (29) along the axial direction, and a projection fitted to the slide groove (29a) is provided on the inner peripheral surface of the rotation cylinder (28), the rotation becomes Shaft (2
9) is locked in the circumferential direction by the slide groove (29a) and the convex portion, and reliably rotates integrally with the rotary cylinder (28) in the circumferential direction.

A first locking ring (9) is fixed to the tip of the rotating shaft (29) by a screw or the like, and the second locking ring (1) is fixed.
0) is fixed to the rear end of the rotary cylinder (28) by screws or the like. As shown in FIGS. 4 and 5, a handle portion (3) protruding from the second locking ring (10) is provided at the rear end of the rotary cylinder (28).
1) Attachment, rotating means (16) to handle (31)
Concatenate. Further, the third locking ring (11) is connected to the rotating shaft (29).
The third locking ring (11 ') is fixed to the intermediate portion of the rotating cylinder (28) by screwing or the like, and is fixed at a predetermined distance from the first locking ring (9). . The gripping cylinder (12) is extrapolated to the rotating cylinder (28) via bearings (32) and (33), and the second and third 'locking rings (10).
By (11 '), it is prevented and fixed in the axial direction.

According to the above construction, the rotating shaft (29) is appropriately moved in and out of the rotating cylinder (28) and temporarily fixed to the desired length with the stopper screw (30), and then the rotating means (16).
As a result, the rotating shaft (29) is rotated integrally with the rotating cylinder (28), and the reflecting surface (26) and the illuminating lamp (27) are simultaneously cleaned as described above.

[0018]

According to the present invention, it is possible to clean a downlight having an illumination lamp housed in a concave mirror buried in a ceiling surface from the ground, thereby simplifying the cleaning work and greatly increasing work efficiency. And the reflecting surface of the downlight and the illumination lamp can be cleaned at the same time.

[Brief description of the drawings]

FIG. 1A is a perspective view showing an embodiment of a downlight cleaner according to the present invention. (B) is a side view which shows the embodiment of the downlight cleaner which concerns on this invention.

FIG. 2 is a partially sectional side view showing a cleaning portion of the downlight cleaner according to the present invention.

FIG. 3 is a partial sectional side view showing a spring and a grip portion of the downlight cleaner of FIG. 2;

FIG. 4A is a perspective view showing another embodiment of the downlight cleaner according to the present invention. (B) is a side view which shows other embodiment of the downlight cleaner which concerns on this invention.

FIG. 5 is a partial cross-sectional side view showing a rotating cylinder and a grip portion of the downlight cleaner of FIG. 4;

FIG. 6 is a side view showing an example of a downlight.

[Explanation of symbols]

 Reference Signs List 7 downlight cleaner 8 rotation shaft 9 first locking ring 10 second locking ring 11 third locking ring 12 gripping cylinder 13 mounting sleeve 14 cover case 15 cleaning tool 16 rotating means

Claims (2)

[Claims] 1. A downlight having a reflecting surface on an inner surface and an illumination lamp housed in a concave mirror buried in a ceiling surface with an opening side facing down, cleaning the reflection surface and the illumination lamp of the downlight. A rotating shaft, a first locking ring fixed to a tip of the rotating shaft, a second locking ring fixed to a rear end of the rotating shaft, and a first locking ring fixed to the rotating shaft. A third locking ring fixed at a predetermined distance from the locking ring, externally inserted through a bearing to the rotating shaft, and secured in the axial direction by the second locking ring and the third locking ring. A gripping cylinder, an attachment sleeve slidably inserted into a portion of the rotary shaft between the first locking ring and the third locking ring, and constantly pressed toward the first locking ring by a spring. , A cover case fixed to the mounting sleeve, and attached to the end of the rotating shaft A cleaning tool drawn into the cover case and a rotating means connected to the rear end of the rotating shaft are provided, and the gripping cylinder is pushed up against the spring with the cover case applied to the opening of the concave mirror. A downlight characterized in that the cleaning tool protrudes from the cover case and enters the concave mirror, and the reflecting surface and the illuminating lamp are simultaneously cleaned while rotating the cleaning tool via the rotation shaft by the rotating means. Cleaner. 2. The downlight cleaner according to claim 1, wherein the rotating shaft is extendable and retractable.