JPS5847606Y2 - Cover attachment/detaching device for fluorescent lamp equipment - Google Patents

Description

[Detailed description of the invention] This invention is a fluorescent lamp that has a cover that covers the bottom surface of the base, so that the cover can be easily attached and removed when replacing the lamp and is not exposed to the outside of the fluorescent lamp. The present invention relates to the cover attachment/detachment device.

Conventionally, the cover of a fluorescent light fixture was attached to a base by providing a threaded part around the base and securing it with screws, or by forming a mounting frame around the cover and attaching it to the base. This is done by tightening the screws, etc.

However, with these, attaching and detaching the cover when replacing the lamp is complicated and takes a long time, and care must be taken not to lose parts such as screws that have been removed. There was also a problem in terms of design since the light fixture was exposed to the outside.

The purpose of this invention is to provide a cover attachment/detachment device for a fluorescent lamp that eliminates the above-mentioned conventional drawbacks, allows the cover to be easily attached and detached from the base, and eliminates design problems. It is.

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

In the figure, 1 is the base of the fluorescent light fixture, 2 is the side wall of the base 1, and the bottom of the base 1 is open, so that a fluorescent lamp can be attached and lit (not shown). .

3 is a support piece with a hook-shaped cross section fixed to the lower surface of the earthen wall of the base 1, and 5 is a support piece with a rectangular side that is pivotally connected to the support plate 3 around a rotation shaft 4 so as to be vertically rotatable. It is.

This retaining piece 5 has a removal recess 6 formed by molding the retaining piece 5 on the base side of the lower side and bent away from the rotating shaft 4, and the distal end of the lower side has a circular shape extending outward and upward from the lower surface. A guide portion 7 having a semicircular bulging curve is formed at the top of the tip of the lower side that curves in an arc, and a pin holding portion 8 in the form of a notched recess is formed at the middle portion of the upper portion of the lower side on the extension of this guide portion 7. A pin fall prevention protrusion 9 is formed at the upper end of the lower end side wall of the removal recess 6 to cover the upper part of the pin holding part 8, and a pin guide is formed at the lower end of the lower end side wall of the removal recess 6. Projection piece 1
0 is formed to protrude in the direction in which the starting end of the guide portion 7 extends.

11 is a spring fixed to the outer surface of the side of the engagement piece 5 and provided between the retaining piece 5 and the support piece 3; It is biased to rotate.

12 is a cover that covers the open lower surface of the base 1; 13 is a mounting piece fixed to the cover 12; and 14 is a pin fixed to the mounting piece 13 and extending parallel to the rotating shaft 4.

Then, the support piece 3, the rotation shaft 4, the engagement piece 5, and the spring 11
are provided on both sides of the base 1, and one set of mounting pieces 13 and one set of pins 14 are provided on both sides of the cover 13.

The cover attachment/detachment device consisting of the above parts
To install it, do the following:

When the cover 12 is lifted toward the base 1 fixed to the ceiling surface, the pin 14 comes into contact with the lower end of the guide part 7 of the retaining piece 5, as shown in FIG. 2, and when the cover 12 is pushed up, As shown in FIG. 3, the pin 14 is in contact with the guide portion 7 while the engaging piece
The pin 14 is rotated clockwise against the spring force of the spring 11 until it reaches the upper end of the guide part 7, and finally the pin 14 fits onto the shaft holding part 8 and holds it as shown in FIG. be done.

In this state, since the engaging piece 5 is always urged to rotate counterclockwise by the spring 11, the weight of the cover 12 and the protruding piece 9 to prevent the pin from falling off protrude onto the pin 14. , the pin 14 will not come off from the shaft holding part 8.

Further, in order to remove the cover 12, when the cover 12 attached to the base 1 is pushed up once against the spring force of the spring 11, the pin 14 is moved to the pin holding portion 8 as shown in FIG. The engaging piece 5 is detached from the spring 11, and also climbs over the pin drop-off prevention protrusion 9 and is positioned above these.
The restoring force causes the pin 4 to return to the counterclockwise direction and the removal recess 6 extends in the vertical direction, allowing the pin 4 to be brought out below the retaining piece 5 by passing through the four parts 6. By lowering the cover 12, it can be removed from the base 1.

In addition, in this invention, the support piece 3 may be fixed to the inner surface of the side wall of the base 1.

This invention is constructed as explained above, and by simply raising and lowering the cover 12 without using screws,
Since this cover 12 can be attached and detached from the base 1, attachment and detachment operations can be performed easily and in a short time, and since there is no part exposed to the outside of the fluorescent lamp, it is possible to provide a cover attachment and detachment device that is excellent in terms of design. There is an effect.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway exploded perspective view showing an embodiment of this invention, and FIGS. 2 to 5 are side views showing different states for explaining the attachment and detachment operations of the same essential parts. FIG. 6 is a schematic side sectional view showing a fluorescent light fixture equipped with a cover attachment/detachment device according to an embodiment of the invention. 1... Base, 2... Side wall, 3...
... Support piece, 4 ... Rotating shaft, 5 ... Engagement piece, 6 ... Recessed part for removal, 7 ... Guide part, 8 ... ...Pin holding part, 9...Pin drop-off prevention protrusion, 10...Pin guide protrusion, 11.
...Hane, 12...Cover, 13...
...Mounting piece, 14...pin. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A supporting piece 3 fixed to the base 1 or its side wall 2 is engaged with an engaging piece 5 having a rectangular shape on the side and pivoted to the supporting piece 3 about a rotating shaft 4 so as to be rotatable in the vertical direction. A spring 11 biasing the piece 5 to rotate in one direction, a mounting piece 13 fixed to a cover 12 covering the bottom surface of the base 1, and a mounting piece 13
The retaining piece 5 has a pin holding part 8 formed at the upper part of the lower side as an extension of the guide part 7 formed at the tip of the lower side, and a pin holding part 8 is formed on the lower side base side of the holding part 8. piece 5
is bent in the thickness direction to form a removal recess 6 , and a pin fall prevention protrusion 9 and a pin guide protrusion 10 are provided on the upper and lower end sides of the removal recess 6 . A cover attaching/detaching device for a fluorescent lamp apparatus, characterized in that the cover is held on a shaft holding part 8 along the lines and removed downward from a removal recess 6.