JPH0751692Y2 - Lighting equipment for straight tube fluorescent lamps - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a lighting device for a straight-tube fluorescent lamp, which comprises an inverted tub-shaped instrument body made of sheet metal, the opening end of which is closed by a side plate made of sheet metal.
Specifically, it relates to a one-touch mounting structure for the instrument body and the side plate.

[Conventional technology]

The main body of the lighting device for one straight tube fluorescent lamp that is directly attached to the ceiling is made of an inverted gutter-shaped sheet metal, and both end portions of the opening are generally closed by side plates made of sheet metal. The side plate that closes the opening end of the instrument body is fixed to the instrument body by spot welding or fixed to the instrument body by a plurality of locking means such as claws. However, if the side plate is spot-welded to the tool body, the assembly workability is poor due to the large number of spot-welding points.Because pre-painted pre-coated plates cannot be used for the tool body and side plates, they must be painted after spot welding. There is a manufacturing inconvenience. Therefore, in recent years, the one in which the side plate is fitted and fixed to the instrument body has become popular because of the fact that the side plate can be attached to the instrument body with one touch, and the pre-coated plate can be used for the instrument body and the side plate. A specific example will be described with reference to FIGS. 8 to 10.

The device body (1) shown in the figure is made of an inverted gutter-shaped sheet metal, and has a long top plate (1a) and opposing wall plates (1b) bent from both ends of the top plate (1a) in the longitudinal direction. ) (1b), a rectangular side plate (2) made of sheet metal is fixed to the open end of the instrument body (1). The side plate (2) also serves as a fitting for the straight tube type fluorescent lamp socket (3), as shown by the chain line in FIGS. 8 and 9, and is bent inward from the upper side so that the instrument body ( The upper side of the rectangle (2) that contacts the inner surface of the top plate (1a) of 1)
a) and a rectangular side wall part (2) that is bent inward from both sides and contacts the inner surfaces of both wall plates (1b) (1b) of the device body (1).
b) (2b) and lower side parts (2c) (2c) bent inward from the lower sides of both side wall parts (2b) (2b), and the lower side part (2c)
The socket (3) is plugged into (2c).

At the open end of the instrument body (1), the following pair of mounting holes (4) (4) and pair of hooking holes (5) ( 5) and a raised piece (6). Both wall plates (1b) (1b) of the instrument body (1)
Is the curl (1c) (1
c), and the slit-shaped mounting holes (4) (4) are vertically formed in the curl portions (1c) (1c), and the wall plates (1b) (1b)
Hook holes (5) and (5) are formed approximately in the middle of b), and the top plate (1)
An inwardly punched-out raised piece (6) is formed in the central portion of a). On the other hand, the side plate (2) has a pair of claw pieces (7) and (7), hooking pieces (8) and (8), and a locking hole (9) as a locking means for the device body (1). The pair of claw pieces (7) and (7) have an L-shaped vertical cross section extending laterally from the lower side portions (2c) and (2c) of the side plate (2), and have corresponding mounting holes (4) in the instrument body (1). ) (4), the pair of hooking pieces (8) and (8) are formed substantially at the middle of the side wall portions (2b) and (2b) of the side plate (2) so as to project to the outer surface. It is fitted into the corresponding hooking hole (5) (5) from the inside, and the locking hole (9) is formed in the center of the upper side portion (2a) of the side plate (2) to cut and raise the instrument body (1). It is fitted into the strip (6).

Therefore, the side plate (2) is attached to the open end of the instrument body (1) as follows. As shown in FIG. 10, the device body (1) is turned upside down, and the side plate (2) which is turned upside down is inserted into the opening end portion thereof. The side plate (2) is inserted by slightly expanding both wall plates (1b) (1b) into the opening end of the instrument body (1), and the claw pieces (7) (7) are attached to the mounting holes (4).
At (4), hooking pieces (8) and (8) are hooked holes (5) and (5).
Then, the attachment of the side plate (2) is completed in the state where the locking hole (9) is cut and raised and is inserted into the piece (6) and locked. In such a mounting structure, the claw pieces (7) (7) and the mounting holes (4)
The locking of (4) restricts the front-back movement of the lower part of the side plate (2) with respect to the device body (1), and prevents the spread of both wall plates (1b) (1b) of the device body (1). Further, the locking of the locking hole (9) and the cut-and-raised piece (6) restricts the movement of the upper part of the side plate (2) with respect to the instrument body (1) in the front-back direction, and further, the hooking piece (8) 8) and the hook holes (5) and (5) are locked to prevent the side plate (2) from coming off the instrument body (1), and the side plate (2) is fixed to the instrument body (1) in a stable state. To be done.

As another conventional example, as in the invention disclosed in Japanese Utility Model Laid-Open No. 58-135806, an L-shaped engaging claw is used as an engaging groove, and the tip of the engaging claw is moved from the inside to the outside of the instrument body. There is a type in which the side plate is fixed to the instrument body by engaging the engaging portion formed on the side plate with the square hole provided in the side wall portion of the instrument body while engaging with the side plate.

[Problems to be solved by the device]

However, in the above-mentioned two conventional examples, both the appliance body and the side plate are deformed when an external force is applied at the time of mounting on the ceiling or at the time of mounting a socket, and at this time, a plurality of combinations of both claws and holes are formed. There was a concern that the locking state of the locking portion would become loose and the locking means would be unlocked in some cases, causing the side plate to fall off the instrument body. Further, in the conventional lighting fixture described later, when a precoated plate which has been painted is used for the main body of the fixture and the side plate, there is a drawback that an engaging scratch is exposed on the external appearance.

Therefore, an object of the present invention is to provide a luminaire having a structure in which a side plate is fitted into the opening end of the gutter-shaped device body by one-touch fitting and the side plate is stably attached to the device body. It is in.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides a lighting fixture having a reverse gutter-shaped fixture body whose opening end is closed by a side plate.
A vertical mounting hole is provided at both ends of the opening end, a cut-and-raised piece protruding inwardly at the center of the opening end, and a cut-and-raised piece provided at the center of the opening end and behind the cut-and-raised piece. Device main body having a stopper piece surrounded by a U-shaped notch, and is inserted diagonally from the outside into the mounting holes of the device main body at both ends of the lower side, and is locked to the inner surface of the mounting hole and the mounting hole. A side plate having an L-shaped claw piece hooked on the inner wall surface at one end of the above, and a tongue piece that is inserted into the rear surface of the cut-and-raised piece at the central portion of the upper side and that engages with the cut-and-raised piece. After attaching the side plate to the opening end of the instrument body, the stopper piece is cut and raised in a direction perpendicular to the mounting direction of the side plate, and the side end of the stopper piece is brought into contact with the rear end of the upper side of the side plate. And

[Action]

When the L-shaped claw piece of the side plate is inserted into the mounting hole of the instrument body,
It locks in the mounting holes to regulate the movement of the side plate in the front-back, left-right direction, and the tip of the claw piece catches on the edge of one end of the mounting hole to regulate the vertical movement of the side plate. After attaching to the opening end of the main body, fix the stopper piece by abutting it on the rear edge of the upper side of the side plate, locking this claw piece and the mounting hole, and the tongue piece of the side plate and the cut-and-raised piece of the instrument body. And the stopper piece and the rear end of the upper side of the side plate, the side plate can be stably attached to the instrument body without fear of falling off.

〔Example〕

An embodiment will be described with reference to FIGS. 1 to 7. (10) shown in FIGS. 1 and 2 is an inverted gutter-shaped device body, and (11) is an opening of the device body (10). With the side plate that closes the end,
Both are made of sheet metal. The instrument body (10) is a top plate (10a)
And opposite wall plates (10b) (1
0b), and has curl portions (10c) (10c) that are folded back inward at the tips of the wall plates (10b) (10b). The side plate (11) has an upper side portion (11a) bent inward from the upper side,
Side wall parts (11b) (11b) bent inward from both sides,
It consists of the lower side parts (11c) (11c) bent inward from the lower ends of the side wall parts (11b) (11b), and the upper side part (11a) is on the inner surface of the top plate (10a) of the instrument body (10), Side wall (11b) (11b)
Contacts the inner surfaces of the wall plates (10b) (10b) of the device body (10), and the side plate (11) closes the open end of the device body (10).

The instrument body (10) has a pair of vertical hole-shaped mounting holes (12) (12) formed in the curl portions (10c) (10c) at both ends of the opening end as locking means of the side plate (11). , Top plate (10
Cut-and-raised piece (1
Have 3). In addition, it will be explained later that a stopper piece (14) surrounded by a U-shaped notch is integrally provided at a fixed position behind the cut-and-raised piece (13) of the top plate (10a) of the instrument body (10). Is desirable. On the other hand, the side plate (11) is a pair of L-shaped claw pieces (15) (15) that are inserted into and hooked on the pair of mounting holes (12) (12) as a locking means for the instrument body (10). And a tongue piece (16) which is inserted into and locked by the cut and raised piece (13). The pair of claw pieces (15) (15) integrally extend from the lower side portions (11c) (11c) of the side plate (11) to form side wall portions (11b) (11b).
Claw body with a vertical cross section that is bent in parallel with and is inserted into the mounting holes (12) (12) of the instrument body (10) and locks to the inner wall surface of the mounting holes (12) (12). (M) (m) and an overhanging portion (n) extending laterally from the tip of the nail body (m) (m)
(N). The tongue piece (16) of the side plate (11) has an upper edge (11
It extends diagonally outward from the center of the inner piece of the square hole (17) formed in the center of a).

The corresponding locking means of the instrument body (10) and the side plate (11) are dimensioned so that the side plate (11) can be attached to the instrument body (10) with one touch as follows. As shown in FIG. 4, the instrument body (10) is turned upside down, and a side plate (11) which is turned upside down from above is provided at the opening end of the instrument body (10).
Fit in the manner shown in the figure. First, as shown in FIG.
The side plate (11) is slanted from above the opening end of the instrument body (10), and the business trip portions (n) (n) of the pair of claw pieces (15) (15) are attached to the attachment holes of the instrument body (10). (12) Inserted in (12), the protrusions (n) (n) of the nail pieces (15) (15) and the nail body (m)
The corner of (m) is applied to one end edge of the mounting holes (12) and (12), and the side plate (11) is used as a fulcrum for the side plate (11).
Rotate into the open end of the. Shortly before the side plate (11) rotates to a fixed position that closes the open end of the device body (10),
The cut-and-raised piece (1) in which the tongue piece (16) protruding from the upper side portion (11a) of the side plate (11) protrudes from the top plate (10a) of the instrument body (10).
3) Inserted into the back side of the side plate (1) as shown in Fig. 6.
1) Place the tongue piece (1
6) is cut and raised, and is locked to the piece (13) to stop the side plate (11) from rotating. At the same time, the nail body (m) of the nail piece (15) (15)
Mounting holes (12) so that (m) blocks the mounting holes (12) (12)
It is inserted into (12) and the protrusions (n) of the claw pieces (15) (15)
(N) wraps under one edge of the mounting holes (12) (12) and is caught by the curl portions (10c) (10c). By locking the pair of claw pieces (15) (15) and the mounting holes (12) (12), the movement of the side plate (10) with respect to the instrument body (10) in the front-back, left-right and up-down directions is restricted. Tongue piece (16) and cut and raised piece (13)
The side plate (11) is stably and firmly attached to the instrument body (10) by the locking.

In addition, after fitting the side plate (11) to the open end of the device body (10), the stopper piece (14) of the device body (10) is inserted inside as shown by the chain line in FIGS. 3 and 7. Bend it in one direction and apply the stopper piece (14) to the rear end of the upper side part (11a) of the side plate (11) with its side end face to prevent the side plate (11) from retreating.
This prevents the tongue piece (16) from coming off the cut and raised piece (13). In this way, the side plate (11) can be attached to the instrument body (10) more securely and firmly.

[Effect of device]

As described above, in the lighting apparatus of the present invention, the L-shaped claw piece of the side plate is provided at the opening end of the apparatus body so as to restrict the movement in the front, rear, left, and right directions on the inner wall surface of the mounting hole of the apparatus body. While the stopper piece is stopped, after attaching the side plate to the opening end of the instrument body, cut and raise it at a right angle to the mounting direction of the side plate, and bring the side end of the stopper piece into contact with the rear end of the upper side of the side plate. Since the side plate is locked, the side plate is firmly attached to the instrument body, the side plate can be prevented from coming off the instrument body, and the instrument body can be easily handled.

[Brief description of drawings]

1 to 7 show an embodiment of the present invention.
The figure shows a partial front view including the instrument body and a partial cross section of the side plate,
1 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is an enlarged sectional view taken along the line BB of FIG. 1, FIG. 4 is a perspective view of the instrument body and side plates before assembly, and FIG. FIG. 6 and FIG. 6 are front views including partial cross sections of the device body and side plates at each stage of assembly, and FIG. 7 is an enlarged cross-sectional view taken along the line CC of FIG. 8 to 10 show a main body and a side plate of a lighting fixture which is a premise of the present invention. FIG. 8 is a partial front view including a partial cross section, and FIG. 9 is a D-D line of FIG. FIG. 10 is a cross-sectional view taken along the line, and FIG. 10 is a perspective view of the instrument body and side plates before assembly. (10) …… Instrument body, (11) …… Side plate, (12) …… Mounting hole, (13) …… Cut and raised piece, (14) …… Stopper piece,
(15) …… nail pieces, (16) …… tongue pieces.

Claims (1)

[Scope of utility model registration request] 1. A luminaire having an inverted gutter-shaped fixture body whose opening end is closed by a side plate, wherein vertical mounting holes are provided at both ends of the opening end, and an inward portion is provided at the center of the opening end. An instrument main body having a cut-and-raised piece projecting at the end, and a stopper piece surrounded by a U-shaped notch provided at the center of the open end and behind the cut-and-raised piece, and at both ends of the lower side. An L-shaped claw piece that is obliquely inserted from the outside into the mounting hole of the instrument body, is locked to the inner surface of the mounting hole, and is hooked to the inner wall surface at one end of the mounting hole; A side plate having a tongue piece that is inserted into the back surface of the instrument and cut and raised to engage with the piece, and after the side plate is attached to the opening end of the instrument body, the stopper piece is in a direction perpendicular to the attaching direction of the side plate. A straight pipe shape characterized in that the side end of the stopper piece is brought into contact with the rear end of the upper side of the side plate. Lighting equipment for fluorescent lamps.