JPH0339855Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a cover attachment/detachment device for a lighting fixture that is directly attached to a ceiling surface or suspended from a chain.

[Prior art]

Conventionally, this type of lighting equipment has been available in insect-proof and non-insect-proof types.The former, which is highly functional by preventing insects and dust from entering, has been sold at a high price, while the latter, which is a popular type, has been sold at a low price.

By the way, the difference between the insect-proof type and the non-insect-proof type is as shown in Figure 1.
In contrast to the mounting structure that simply hooks onto the
As shown in the figure, since a structure is required in which the gap between the cover body B and the instrument body A is sealed with packing 1, it is necessary to install a cover attaching/detaching device C to attach and detach the cover body B and the instrument body A. The main factors behind the price difference were the material costs and installation processing costs for Device C and Packing 1. However, packing 1, which accounts for this price difference, is actually not that expensive, and rather costs are incurred for installation processing using adhesives, etc. 68911, that is, by adopting a method that prevents the packing 1 from coming off in the cover frame as shown in Fig. 3, it is possible to realize the packing function at low cost. Therefore, for this type of lighting equipment, if the cost of the other cover removable parts can be reduced all at once, the cost difference between the insect-proof type and the non-insect-proof type will almost disappear, and insects and dust can be removed without changing the selling price. We are now at a stage where we can offer consumers easy-to-maintain lighting fixtures that are difficult to access.

However, this cover attaching/detaching device C is an important part that prevents the cover from falling, and many patents and new proposals have been filed so far, and although it is explained with simple pictures, in reality there are many ways to ensure cover retention. This has been done using several parts and costs. For example, Jikko Sho 53-37504, that is, the second
The structure shown in the figure is the most common cover attaching/detaching device in the current market, but in practice, this part also includes a mounting base 2, a spring 3, a cover mounting bracket 4, a locking frame 5, and a spring 3 as shown in FIG. It requires a large number of parts, 14 in total: two each for the stopper 6, pushbutton spring 7, and pushbutton 8.In addition, each device itself,
It costs a lot of money to fasten and attach it to the cover body. Another example is the cover attaching/detaching device C shown in Figs. 5 and 6, but since the long side of the cover body B is supported at one point, packing on both sides is uncertain, and two points are required. The support has become more complex and expensive, and due to its shape, it has been made of plastic injection molding or zinc die casting, but the former has disappeared due to safety concerns, and the latter has become more expensive. Although there is no problem in terms of sex, they have become expensive, and insect-proof and non-insect-proof types still have a substantial price difference in the market.

[Summary of the idea]

The present invention solves the above problem, that is, the cover attaching/detaching device C.
This is intended to achieve cost reduction by significantly reducing the number of parts and by greatly simplifying the installation to the instrument body A. An embodiment of the cover attaching/detaching device of this invention will be described below.

[Example of idea]

In FIGS. 7 and 8, reference numeral 9 denotes a rectangular dish-shaped mounting plate 13 having a bent portion 10 on the lower side of the periphery, a wall portion 11 on the flat plate portion, and an overhanging portion 12 on the lower side. is the bent part 10 of this mounting plate 9
A first through hole 14 provided near the center of the wall 11 of the overhanging portion 12 connects the first through hole 13
a second through hole provided at a position facing the
Reference numeral 15 designates a lamp socket having a spring receiving protrusion 16 provided on the lower surface of the overhanging portion 12 a little closer to the center than the second through hole 14; is similarly provided at the other end of the mounting plate 9. 4 has one end penetrate the first through hole 13 and protrude outside of the instrument body A, and has a push button 1 at its tip.
7, the other end penetrates the second through hole 14, and the spring holding part 19 is cut and raised downward from the substantially central part of the shaft part 18 which is projected and supported on the back surface of the instrument main body A.
This is a cover mounting bracket consisting of a locking part 20 hanging downward from both central ends and extending outward of the device body A, and a pressure-receiving part 21 provided diagonally downward and inward from the locking part 20. One end is held in the spring receiving part 16 of the socket 15, and the other end is held in the spring holding part 19 of the cover mounting bracket 4, so that the instrument is always urged outward. 22 has a U-shaped cross section opening upward, and one upper end is connected to the pressure receiving part 2 of the cover mounting bracket 4.
1 is used as the pressing part 23, and the lower surface part is used as the locking part 20.
As the engaging portion 24 that engages with the
A cover frame extending downward and inward to form a cover holding portion 25; 1 is a packing attached to the U-shaped opening of the cover frame 22; 26 is held by the cover holding portion 25 of the cover frame; These covers 26, cover frame 2
2. The packing 1 constitutes a cover body B.

Next, the operation of attaching and detaching the cover will be explained with reference to FIG. When the cover body B is pushed up toward the instrument body A, the pressing part 23 of the cover frame 22 presses the pressure receiving part 21 of the cover mounting bracket 4, compressing the spring 3, and pushing the cover mounting bracket 4 toward the inside of the instrument body A. and then move the locking part 20 of the cover mounting bracket 4 upwards.
By pushing up the cover frame 22 to the position of the engagement part 24, the spring 3 is released and the engagement part 20 is released.
engages with the engaging portion 24 to engage and hold the cover body B. When the cover body B is to be removed, the spring 3 is compressed by pushing the push button 17 of the cover mounting bracket 4 inward, the locking portion 20 is moved inward, and the cover body B is removed.

Next, a method for attaching the cover mounting bracket 4 to the mounting plate 9 will be explained with reference to FIG. 10. First, one end of the shaft portion 18 of the cover mounting bracket 4 is inserted into the second through hole 14 of the mounting plate 9 as far as it will go, and then the other end is pushed up to the surface of the mounting plate 9 to penetrate into the first through hole 13 and protrude. Insert the push button 17 into the tip of the spring 3, and attach one end of the spring 3 to the spring holding part 18 of the cover mounting bracket 4.
By fitting the other end into the spring receiving portion 16 of the lamp socket 15, assembly is completed without any fastening work.

The cover attaching/detaching device for a lighting fixture of this invention is provided between a fixture body, a cover mounting bracket slidably engaged with both ends of the fixture body, and a lamp socket provided on the fixture body. a cover frame formed with an engaging portion that engages with a locking portion of the mounting bracket; a transparent cover held by the cover frame; The device body has a bending part below the periphery thereof, a mounting plate having a wall part on the flat plate part and a projecting part below, and the bending part of the mounting plate. A first through hole provided near the center, a second through hole provided in the wall, and a spring receiving protrusion provided on the bottom surface of the overhang portion slightly closer to the center than the second through hole. The cover mounting bracket is integrally molded into a T-shape as a whole, and one end extends through the first through hole and protrudes to the outside of the device main body, and a separate operating pusher is attached to the tip. A spring holding portion is cut and raised downward from approximately the center of the shaft portion into which the button is inserted, the other end of which extends through the second through hole and is supported by protruding from the upper surface of the device main body. A locking part is provided that extends outward from the main body of the device, and a pressure-receiving part is provided diagonally downward and inward from the locking part, so the number of parts is limited to the spring, cover mounting bracket, and It has an extremely simple configuration with 2 push buttons each, for a total of 6 push buttons.Moreover, the light-transmitting cover can be attached by simply pushing it upwards, and the cover mounting bracket has a shaft that protrudes outside to remove it. It is extremely easy to attach and detach by simply pressing the pressed button inward.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional non-insect-proof type example, illustrating how to attach and remove the cover, Figure 2 is a cross-sectional view of a conventional insect-proof type example, and Figure 3 is a main part illustrating how to attach the packing to the cover frame. 4 is an exploded perspective view of a main part showing a conventional insect-proof type example, FIG. 5 is a sectional view of a main part showing another conventional example, FIG. 6 is a perspective view of the same, and FIG. 7 is a cross-section of the present invention. 8 is a perspective view of the main part, FIG. 9 is a sectional view of the main part explaining attachment and detachment of the cover, and FIG. 10 is a sectional view of the main part explaining the assembly of the cover mounting bracket. A... Apparatus body, B... Cover body, C... Cover attachment/detaching device, 1... Packing, 3... Spring, 4
...Cover mounting bracket, 9...Mounting plate, 13...First through hole, 14...Second through hole, 15...Lamp socket, 16...Spring receiver, 17...Push button, 18...Shaft Part, 19... Spring holding part, 20...
...Locking part, 21...Pressure receiving part, 22...Cover frame,
23...pressing part, 24...engaging part, 26...cover. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] An appliance main body A, a cover mounting bracket 4 slidably engaged with both ends of the appliance main body A, and a lamp socket 15 provided on the mounting bracket 4 and the main body A. a cover frame 22 formed with an engaging part 24 that engages with a locking part 20 of the mounting bracket 4; In the cover attachment/detachment device for a lighting fixture having a transparent cover B held on the cover frame 22, the fixture body A has a bent portion 1 below its periphery.
0, a mounting plate 9 having a wall portion 11 on the flat plate portion and a projecting portion 12 on the lower side;
A first through hole 13 provided near the center of the bent portion 10 of the mounting plate 9, a second through hole 14 provided in the wall portion 11, and a second through hole 14 provided in the wall portion 11, and a second through hole 14 provided slightly toward the center of the second through hole 14. The lamp socket 15 is provided on the bottom surface of the overhanging portion 12 and has a projection 16 for receiving a spring. A separate operating push button 17 is fitted into its tip, and the other end extends through the second through hole 14 to protrude to the upper surface of the device body A and is supported. A spring holding portion 19 is provided below the approximate center of the shaft portion 18, and a locking portion 20 is provided that hangs downward from the center and extends outward of the instrument body A. A cover attachment/detachment device for a lighting equipment, characterized in that a pressure receiving part 21 is provided diagonally downward and inward.