JP2813919B2 - Transparent cover attachment / detachment device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-transmitting cover attaching / detaching device for a lighting device comprising a lighting device body and a light-transmitting cover.

[Conventional technology]

2. Description of the Related Art In a lighting device including a device body and a light-transmitting cover that covers a lower surface of the device, a spring-type cover attaching / detaching device as described below has been conventionally attached. As shown in FIG. 5, both ends of the coil spring 11 are extended in a V-shape, and the ends are bent outward to form the locking portions 12.
Is attached to the light-transmitting cover 13 with the mounting bracket 17, and on the side of the instrument body 14, at a position corresponding to the V spring,
The V-shaped open leg 15 of the V-spring is provided with a latch 16 protruding at an interval corresponding to the opening width close to the base thereof. Then, the light-transmitting cover 13 is pushed up to move the projection of the latch 16 near the base of the V-spring.
The translucent cover 13 was attached due to the reaction force of To open or remove the translucent cover 13, the translucent cover 13 is pulled down. At this time, the bending and locking part at the tip of the V spring
Since the latch 12 is engaged with the projecting portion of the latch 16, the V-spring on one side of the lighting fixture is narrowed so that the open leg 15 is locked by the latch.
When detached from the light-transmitting cover 16, the light-transmitting cover 13 is supported by the V-spring on the other side and the latch 16 and is opened in a hanging state. If the V spring on the other side is detached from the latch 16, the light transmitting cover 13
Can be removed from the instrument body 14.

[Problems to be solved by the invention]

In the above-mentioned prior art, when the translucent cover is mounted, the V spring is temporarily fixed to the locking fitting while the open leg portion is narrowed. for that reason,
In the case of a large and heavy translucent cover, the temporary fixing operation was difficult because the wire diameter of the V spring was large and the reaction force was strong.
Further, in the case of a lighting device having a low height, the V-spring is short, so that the locking fitting is difficult to see, and it is difficult to lock the V-spring.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a light-transmitting cover attaching / detaching device that can easily attach / detach a light-transmitting cover to / from a device main body and has good workability.

[Means for solving the problem]

An object of the present invention is to provide a light-transmitting cover attaching / detaching device for a lighting device, comprising a lighting device, a lamp body-mounted device main body, and a light-transmitting cover that covers the lighting device and the lamp. The rhombic springs, which are bent so as to face each other, and whose tops are each bent into a semicircle, are attached to the translucent cover, the protruding locking pieces are opposed to each other, and a locking projection is protruded in the middle. This is achieved by attaching a locking fitting to the device main body and locking them together.

[Action]

In the present invention, the spring members extending at both ends of the coil spring are bent so as to face each other so as to form a rhombus, and the widthwise expansion of the rhombic spring is formed so as to be locked to the protruding locking piece of the locking fitting. Have been. The tops of the rhombic springs are formed so that the opposing spring members are each bent in a semicircular shape and overlapped with each other, so that they can be engaged with the engaging projections of the engaging metal fitting.
To attach the light-transmitting cover to the instrument body, the overlapping semicircular curved portion of the diamond-shaped spring is engaged with the engaging projection of the engaging metal fitting provided on the instrument body, and the light-transmitting cover is pushed up as it is. After the width of the diamond-shaped spring attached to the light-transmitting cover is compressed and the corners pass through between the projecting locking pieces attached to the instrument body, the light-transmitting cover is moved by the repulsive force of the diamond-shaped spring. It can be locked in the state of being pressed against. To remove the light-transmitting cover, pull down the light-transmitting cover until the crescent-shaped curved portion is locked by the locking protrusion, and remove the curved portion from the locking protrusion. The gap is reduced against the reaction force of the leg, and it is not necessary to attach or detach the light-transmitting cover in a groping state, and the light-transmitting cover can be easily attached and detached.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings. First
FIG. 3 is an exploded perspective view showing an embodiment of the light-transmitting cover attaching / detaching device according to the present invention, FIG. 2 is a perspective view showing the locking fitting of the above embodiment, and FIG. FIG. 4 is a diagram showing an open state of the lighting equipment, and FIG. 4 is a view showing an example of the appearance of the lighting equipment. As shown in the exploded perspective view of FIG.
At a position corresponding to the diamond-shaped spring 3, there is provided a locking metal member 5 for locking the diamond-shaped spring 3, so that these springs and metal members can be locked or released from each other. The rhombic spring 3 is formed by bending spring members extending at both ends of the coil spring 6 so as to face each other so as to form a substantially rhombic shape, curving the top into a semicircle, and superimposing them. A plurality of the rhombic springs 3 are rotatably attached to the periphery of the light-transmitting cover 1 by a mounting bracket 2 using a ring portion formed by a coil spring 6. The locking fittings 5 are provided at respective positions of the tool body 4 corresponding to the rhombic springs 3 attached to the translucent cover 1, respectively.
The protruding locking pieces 7
A locking projection 8 having a bent portion is provided in the middle lower portion of the rhombic spring 3.
Are formed sufficiently smaller than the maximum width of the spring base and larger than the width of the spring base.

In order to mount the light-transmitting cover 1 on the fixture body 4, a semicircular curved portion provided at the tip of a rhombic spring 3 attached to the light-transmitting cover 1 on one side of the lighting fixture is engaged with the fixture attached to the fixture body. When the hooks are respectively hooked on the locking projections 8 of the metal fitting 5 and the lower part of the translucent cover is pushed up, the two sides of the open leg forming the rhombus of the rhombic spring 3 become the protruding locking pieces of the locking metal fitting 5. 7, when the protruding corners of the rhombus pass through the protruding locking pieces 7, they are restored by the reaction force of the spring, and the translucent cover 1 is attracted to the apparatus main body 4 so that FIG. Attach as shown in. When removing the light-transmitting cover 1, the light-transmitting cover 1 is pulled down until the curved portion at the tip of the rhombic spring 3 is locked to the locking projection 8 of the locking fitting, and the curved portion is removed from the locking projection 8. I just remove it. Therefore, when attaching or removing the light transmitting cover 1 as in the related art, there is no need to lock or remove the locking metal fitting in a groping state while reducing the spread of the spring with the fingertip against the elasticity of the spring. ,
The attachment / detachment operation of the light-transmitting cover 1 to / from the instrument body 4 can be easily performed.

As shown in FIG. 2, the locking metal fitting 5 is formed by increasing the distance between the protruding locking pieces 7 provided opposite to each other from the end of the protruding piece 7 toward the mounting base ( A> B) in FIG.
Can be supported at a portion where the strength is large.

〔The invention's effect〕

As described above, the attachment / detachment device for the light-transmitting cover according to the present invention includes:
In a light-transmitting cover attaching / detaching device for a lighting fixture, comprising a lighting device, a lamp body-mounted device main body, and a light-transmitting cover that covers them, spring materials extending at both ends of a coil spring are mutually connected so as to form a substantially rhombic shape. A rhombic spring, which is bent in opposition and curved to form a semicircle at the top, is attached to the light-transmitting cover, the protruding locking pieces are opposed to each other, and a locking metal fitting is provided with a locking projection in the middle. By attaching the light-transmitting cover to the instrument body and locking them to each other, the light-transmitting cover can be easily attached to and detached from the instrument body, and a light-transmissive cover attaching / detaching device with good safety and operability can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the light-transmitting cover attaching / detaching apparatus according to the present invention, FIG. 2 is a perspective view showing the locking fitting of the above embodiment, and FIG. FIG. 4 is a view showing an example of the external appearance of the lighting fixture, and FIG. 5 is a view showing a conventional light-transmitting cover attaching / detaching apparatus. 1 ... Transparent cover, 3 ... Rhombus spring, 4 ... Device body,
5: locking metal fittings, 6: coil springs, 7: protruding locking pieces, 8: locking projections.

Continuation of the front page (56) References JP-A-54-144096 (JP, A) JP-A-55-9087 (JP, U) JP-A-54-153186 (JP, U) JP-A-58-52709 (JP) , U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F21V 17/00

Claims (2)

(57) [Claims] 1. A lighting device and an appliance body equipped with a lamp,
In a translucent cover attaching / detaching device for lighting fixtures, comprising a translucent cover that covers them, the spring members extending at both ends of the coil spring are bent to face each other so as to form a substantially rhombus,
A diamond-shaped spring whose tops are each bent into a semicircle and superimposed is attached to the light-transmitting cover, the projecting engagement pieces are opposed to each other, and an engagement metal fitting having an engagement projection protruding in the middle is attached to the instrument body. And a translucent cover attaching / detaching device, wherein these devices are mutually locked. 2. The locking metal fitting according to claim 1, wherein the distance between the protruding locking pieces provided opposite to each other is increased from the tip of the protruding locking piece toward the mounting base. 2. The translucent cover attaching / detaching device according to claim 1.