JPS597688Y2 - recessed light fixtures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recessed lighting device, and more particularly to a structure for attaching a frame having a buttful portion.

As shown in Fig. 1, this kind of conventional recessed lighting equipment has the following features:
A socket 2 is attached to the center of a substantially U-shaped support frame 1, and a socket 2 is attached to the locking portions 3 formed on both sides of the support frame 1, and a buttful portion 4 is integrally formed on both sides of the frame body 5. A structure is adopted in which the attached substantially V-shaped locking spring bodies 6, 6 are slidably locked, and the buttful portion 4 surrounds the lamp 7 attached to the socket 2.

Conventionally, a mounting bracket 8 made of aluminum is fixed to both sides of the inner surface of the frame body 5 by spot welding, and a hook bracket 9 is attached to the mounting bracket 8 with an aluminum rivet 1.
0, and the center winding part 12 of the substantially ■-shaped locking spring body 6 is attached to the inverted U-shaped hook-shaped retaining part 11 of this hook fitting 9.
A structure is employed in which the locking spring body 6 is held by bending the tip of the retaining portion 11.

In this conventional structure, since the mounting bracket 8 is spot welded, spot marks appear on the surface of the frame 5, which tends to impair the appearance and requires post-processing.Furthermore, if the frame 5 is moved back and forth frequently, spot welding occurs. The tensile strength of the parts is weak, the spot welds peel off and the frame easily falls, and when assembling it is necessary to attach the mounting fittings 8, hook fittings 9, etc., making assembly difficult. It required bending of the tip of 9, which took time to assemble and had the disadvantage of poor work efficiency.

The present invention was developed in view of the above-mentioned drawbacks, and a retaining ring is fitted using an annular recess formed in the buttful portion of the frame, and a screw inserted into a screw insertion portion formed in the retaining ring is inserted into the retaining ring. By inserting and locking the screw into the bracket that holds the roughly ■-shaped spring body and attaching the fixture to the frame, the retaining ring is tightened by this screw and the annular shape of the buttful part is tightened. To provide an embedded lighting fixture which is securely held in a concave groove without coming off, does not require spot welding, has a locking spring body securely attached to a frame body, and has good assembly workability.

Next, the structure of one embodiment of the present invention will be explained with reference to FIGS. 3 to 7 of the drawings.

Reference numeral 20 denotes a support frame which is embedded and fixed in the ceiling of the structure and is shaped into a substantially inverted U-shape, and a lamp socket 22 is attached to the center of the top plate portion 21.

Locking pieces 24 are fixed to the inner surfaces of both side plate portions 23 of the support frame 20, and each locking piece 24 has a locking portion 26 that expands inwardly from an opening 25. has been done.

Furthermore, engagement pieces 27 are formed at both ends of the support frame 20 and are bent outward, and a support piece for supporting a ceiling member (not shown) is formed between the engagement pieces 27 and the engagement pieces 27 28 are provided.

Next, 29 is a frame body, and a cylindrical buttful portion 30 protruding upward from the inner circumference of this frame body 29 is integrally formed, and this buffle portion 30 has a large number of annular recesses 31 arranged in parallel in the axial direction. Due to the large number of recesses 31, the inner surface of the buffle portion 30 is shaped into an uneven surface 32 that improves the reflection effect.

Next, reference numeral 33 denotes a retaining ring that is secured to the concave portion 31 of the buttful portion 30 of the frame body 29, and is made of a wire rod made of metal or resin. An annular screw insertion portion 34 is bent in a bent direction, and an annular screw insertion portion 35 is formed in a curved shape facing the retaining ring 33.

Next, reference numeral 36 denotes a fitting, which is bent into a substantially U-shape, and groove-shaped holding portions 39 . 39 is formed, and both side portions 37 . At the bottom of 38 is a tapped hole 4 into which a screw 40 is screwed.
1.41 are shaped oppositely.

Reference numeral 42 denotes a locking spring body, which has a substantially ■-shaped shape with an annular winding part 43 wound around the central part, and the ends of both locking rods of this spring body 42 are bent to prevent them from coming off. The portion 45 is bent, and the winding portion 43 of the spring body 42 is connected to the holding portion 39 . 39, and both locking rods are slidably locked to the locking portions 26 of the support frame 20.

Next, the operation of this embodiment will be explained.

The retaining ring 33 is fitted into the buttful portion 30 of the frame body 29, this retaining ring 33 is locked in the lower end annular recess 31 of the buttful portion 30, and the screws 40 are inserted into the screw insertion portions M and 35 on both sides of the retaining ring 33, respectively. , and screw this screw 40 into the threaded hole 41.41 of the fixture 36.

By screwing the screws 40 into the screw holes 41, 41, the holding portion 39 of the fixture 36 is secured. The locking spring body 42 engaged with the baffle portion 39 is held in place so as not to come off, and the retaining ring 33 is tightened by the screw 40, so that the retaining ring 33 is engaged with the annular recess 31 of the baffle portion 30.

Next, when the retaining rod part of the retaining spring body 42 is engaged with the retaining part 26 of the support frame 20 and the frame body 29 is pushed in, the baffle part 30 surrounds the lamp 46 attached to the lamp socket 22.

Further, when the frame body 29 is pulled downward, both locking rod portions 44 of the spring body 42 are pinched, and the frame body 29 is pulled out downward.

In the above embodiment, the structure in which the retaining ring 33 is shaped like a single wire rod has been explained, but as shown in FIG. 8, the retaining ring 33
A retaining ring portion 47 is formed in the middle portion of the retaining ring portion 47 and is curved outward in a substantially U-shape, and the winding portion 43 of the locking spring body 42 is directly retained in this engaging ring portion 47. You can also do it like this.

Further, as shown in FIG. 9, the retaining ring 33 is made of a long and narrow strip plate, and both ends of this plate are bent outward to form a retaining piece 48. A screw insertion portion 49 is provided, and a screw insertion portion 50 is provided in a mounting piece portion 48a which is formed by bending the intermediate portion of the retaining ring 33 outward in a substantially U-shape.

Further, as shown in FIG.
It is also possible to form a screw insertion part 49 in the mounting piece part 48 which is bent outward at both ends of the 1.51.

Furthermore, as shown in FIG. 11, a retaining ring 33 is formed using a coiled spring, and a screw insertion portion 52 is formed by punching out a part of the winding portion on both sides of the retaining ring 33. can do.

According to the present invention, a screw insertion portion is formed in the retaining ring that is fitted and locked in the annular recess formed in the buttful portion of the frame, and the screw inserted into the screw insertion portion is inserted into the approximately square shape. Since the same winding portion of the stop spring body is screwed into the fixture that holds the retaining ring, the retaining ring that fits into the annular recess formed in the buttful portion of the frame body is attached to the retaining ring. By tightening the screws that fasten the fixture, it is locked and held so that it does not come off, the retaining ring is securely and easily attached to the frame, and the locking spring body is attached to the frame without the need for spot welding. In addition, there is no risk of peeling due to spot welding, no spot marks are produced, and no post-processing is required.Furthermore, the locking spring body can be attached using the annular recess formed in the buttful part of the frame body. It is easy to assemble.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a conventional lighting fixture, Fig. 2 is a perspective view of the mounting portion of the above locking spring body, Fig. 3 is a perspective view of a lighting fixture showing an embodiment of the present invention, and Fig. 4 5 is a perspective view of the attachment part of the locking spring body as above, FIG. 6 is a perspective view of the retaining ring as above, and FIG. 7 is a perspective view of the locking spring body mount as above. 8 to 11 are perspective views of retaining rings showing other embodiments. 20... Support frame, 22... Lamp socket, 29... Curved frame body, 30... Full portion,
31... Annular recess, 33... Holding ring, 34, 35, 49, 50.52... Screw insertion part, 36... Mounting tool, 40...screw,
42... Locking spring body, 43... Winding portion.

Claims (1)

[Scope of utility model registration request] It consists of a support frame that supports the lamp socket, and a frame body integrally formed with a full part that is movably locked to the support frame and surrounds the lamp attached to the lamp socket, and the baffle of the frame body A retaining ring that is fitted and locked in an annular recess formed on the outer periphery of the part has a screw insertion part projecting outward, and the screw inserted into this screw insertion part is screwed and fixed to the mounting tool. By tightening this screw, the retaining ring is locked in the annular recess of the buttful part, and the intermediate winding part of the approximately ■-shaped spring body that is slidably locked in the support frame is locked in this fixture. A recessed lighting fixture characterized by: