JPS5932843B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lighting fixture, and in a line lighting type in which straight-tube lamps such as straight-tube fluorescent lamps are installed side by side in a vertical direction, the present invention relates to a lighting fixture. The present invention relates to a connecting device that prevents sockets whose back faces face each other from shifting.

When conventional lighting fixtures of this kind are installed side by side in the longitudinal direction, the butt portions of the sockets where the back faces of adjacent fixtures face each other tend to shift, which has the disadvantage of easily damaging the appearance.

For this purpose, as shown in Japanese Utility Model Application Publication No. 50-127268, an engaging protrusion and an engaging recess are formed at symmetrical positions on the back surface of the socket cover, and the engaging protrusion and the engaging recess are engaged with each other. without the socket of the device being misaligned.
2. Description of the Related Art A lighting fixture is known in which straight tube lamps attached to each fixture are arranged in a straight line.

When such lighting equipment is installed alone, or when installed in parallel, the engaging projections and engaging recesses formed on the end face of the socket cover of the end equipment are exposed, resulting in poor appearance. have.

In addition, as shown in Japanese Utility Model Application Publication No. 51-125484, a stepped part with a reduced diameter is formed at the end of the back side of the socket, and the back faces of adjacent instruments extend over the stepped parts of both facing sockets. A lighting fixture has been proposed in which a connector is fitted to prevent the sockets, which are arranged side by side, with their back faces facing each other, from being displaced.

With such lighting equipment, the sockets must be connected using a connecting tool during construction when installing the fixtures side by side, which is time-consuming and requires the preparation of a connecting tool that is used only for connection. However, it has the disadvantage of high cost.

The present invention was made in view of the above problems, and includes a socket cover fitted to a socket so as to be slidable in the direction of the device of a straight tube lamp, and a socket cover that is arranged in a vertical direction so that the backs of the appliances are mutually aligned. It is possible to prevent the socket from shifting by fitting it into the opposing and adjacent socket, and there is no need to use parts for positioning, making installation easy.
The present invention provides a lighting fixture that can be obtained at low cost.

Next, the configuration of an embodiment of the present invention will be explained with reference to the drawings.

(1) is an elongated lighting device main body, and sockets 2 are attached to both ends of the lower surface of the main body 1 so as to face each other.

This socket 2 is composed of a mounting base 3, a socket body mounting member 4, and a socket body 5.

The mount 3 is made of metal or synthetic resin, and includes a base 7 fixed to the main body 1 with screws 6, a rising part 8 vertically protruding from the base 7, and a lower part of the rising part 8. A cord insertion hole 10 penetrating the upper surface of the base 7 via the rising portion 8 is opened in the lower surface of the mount portion 9 .

Furthermore, a restriction step 11 is cut out and formed on the outer end side of the lower surface of the mounting base portion 9 .

Further, a screw hole 12 is formed in the lower surface of the mounting base 9.

The socket body mounting member 4 includes a bottom plate portion 13 formed of a metal plate and fixed to the mounting base portion 9 of the mounting base 3, and side plate portions curved in an arc shape downward from both sides of the bottom plate portion 13. 14, and a socket body mounting plate portion 15 which is bent inwardly from the lower end of the side plate portion 14 to face each other.
15 and is formed into a substantially semi-cylindrical shape.

A cord passage hole 16 and a screw passage hole 17 are formed in the bottom plate part 13 in correspondence with the positions of the cord passage hole 10 and the screw hole 12 formed in the mount part 9 of the mount 3, respectively.

Further, the side plate portion 14.14 is integrally provided with a spring piece 18 cut and formed so as to protrude outward, and the side plate portion 14.14 is further provided with an engagement holding portion in the form of a bow or a recess. 19 and 20 are formed at intervals in the axial direction of this socket body mounting member 4.

Further, notches 21 forming socket body fitting portions 22 are formed at the front ends of the inner edges of the socket body mounting plate portions 15 15 , and furthermore, the socket body mounting plate portions 1
A locking protrusion 23 is protruded from the middle of the notch 21 of 5.15, and a positioning protrusion 24 is formed at the rear of the notch 21.

Further, a connecting piece 25 is provided at the front end of the socket body mounting member 4.
A substantially annular cover fitting portion 26 having substantially the same curved surface as the side plate portion 14 of the socket body mounting member 4 is integrally formed via the socket body mounting member 4 .

This lid fitting portion 26 has planar portions 27 formed at the top, bottom, left and right positions, and retaining grooves 27 are formed in the circumferential direction excluding the planar portions 27.
8 is formed.

The bottom plate part 13 of the socket body mounting member 4 is fixed by screwing and tightening the screw 29 inserted through the screw insertion hole 17 into the screw hole 12 on the upper surface of the base part 9, and in this state, the cord insertion hole is 10 and the cord port 16 are communicated with each other.

Further, 30 is a lid body, and a fitting edge 31 is provided at the periphery of this lid body 30.
is formed in an annular shape, and a circumferential engagement protrusion 32 is formed on this fitting edge 31 to bulge inward, and this lid body 30
The fitting edge 31 of the socket body mounting member 4 is fitted into the lid fitting portion 26 of the socket main body mounting member 4, and the engagement protrusion 32 is engaged with the engagement groove 28 to prevent removal.

Note that the lid fitting portion 26 has a planar portion 27 between each of the engagement grooves 28 and is located inside the circumferential surface of the lid fitting portion 26, so that the engagement protrusion 32 does not abut against each other. do not have.

Next, an actuating body 33 is fitted into the front end of the socket main body 5 so as to be able to move forward and backward, and a lamp mounting portion 3 on the front side of the actuating body 33
6 has terminal pin insertion holes 38, 38 for a straight tube lamp 37 such as a straight tube fluorescent lamp, and inside the terminal pin insertion holes 38, 38 there are holes (not shown) that contact the terminal pins of the lamp 37. A back plate 10 is provided with a contact piece, and a cord 39 connected to the contact piece closes the rear surface of the socket body 5.
The main body 1 is inserted through the cord passage hole 16 of the socket body mounting member 4 and the cord insertion hole 10 of the mounting base 3.
connected to the side.

The front part of this socket body 5 has a larger diameter than the socket body mounting member 4, the lower half of the rear part has the same outer diameter as the front part, and the upper half has a socket body fitting part of the socket body mounting member 4. It is formed concentrically with the front part and small in diameter to the extent that it can fit into the front part.

Engagement grooves 41 are formed on both rear sides of the socket main body 5 between the lower half of the larger diameter and the upper half of the smaller diameter, extending in the axial direction from the back plate 40 to the front side. A portion of the back plate 40 of the engagement groove 41 is formed shallowly, and by engaging this engagement groove 41 with the notch 21 of the socket body mounting member 4, the front end of the engagement groove 41 is positioned on the positioning protrusion 24. When engaged, the locking protrusion 23 is locked at a position beyond the shallow part of the back plate 40 of the engagement groove 41 to prevent removal and is held, and the rear part of the socket body 5 is connected to the socket body of the socket body mounting member 4. The socket body mounting member 4 is held by the fitting part 22 and is covered by the front part of the socket body 5 and is not exposed at the front part.

Next, reference numeral 42 denotes a socket cover, which is formed into a substantially cylindrical shape that is slidably fitted into the socket main body 5, and whose front end is formed with an annular flange 43 that is constricted inward.
A groove-shaped guide engagement part 44 is cut out in the rear lower part of 2 and is slidably engaged with the mounting base part 9 of the fitting 3. Engagement protrusions 45 that are positioned and engaged with the engagement holding parts 19 and 20 of the main body mounting member 4 are formed to protrude inward.

The positional relationship between the engagement holding parts 19 and 20 and the engagement protrusion 45 is such that in the first stage when the socket cover 42 is fitted to the socket body 5 and the socket body mounting member 4, the engagement protrusion 45 is engaged on the front side. The cover 42 is engaged with the fitting holding portion 19, and in this state, the rear end of the cover 42 is located forward of the back surface of the lid body 30 fitted to the socket body mounting member 4.

Further, when the cover 42 is pushed backward, the engagement protrusion 45 is engaged with the engagement holding part 20 on the rear side, and the rear end of the second stage cover 42 is connected to the lid body 30 fitted to the socket body mounting member 4. It is approximately the same plane as the back surface of the main body 1, and is approximately the same plane as the end face of the main body 1.

When the cover 42 is pushed further backward, the inner end of the guide engagement part 44 of the third stage cover 42 comes into contact with the regulating step 11 formed on the mounting base part 9 of the mounting base 3, and the cover 42 is positioned. The rear end of the main body 1 protrudes from the end surface of the main body 1.

Next, the operation of this embodiment will be explained.

When using the lighting fixture alone, by engaging the engagement protrusion 45 of the socket cover 42 in the second stage described above with the engagement holding part 20 on the rear side of the socket main body mounting member 4,
As shown in FIG. 3, the rear end portion of the cover 42 is placed flush with the back surface of the lid 30 fitted into the lid fitting portion 26 of the socket body mounting member 4.

Next, when a plurality of instrument bodies 1 are arranged in parallel in the longitudinal direction as shown in FIG. 1, the end surfaces of adjacent instrument bodies 1 and 1A are brought into contact with each other as shown in FIG. The socket cover 42 of one of the sockets 2 and 2A of the sockets 1A whose backs face each other is in the first stage state in which it is engaged with the engagement holding part 19 on the front side of the socket main body mounting member 4, and the rear end of the cover 42 is in the first stage state. The socket cover 42 of the other socket 1-2A is positioned in front of the lid body 30 to expose the lid body 30, and the inner end of the guide engagement portion 44 of the socket cover 42 of the other socket 1-2A is engaged with the restriction stepped portion 11 of the mounting base 3. In the third stage state, the rear end of this cover 42 is fitted to the lid 30 of one socket 2,
The rear ends of both socket covers 42 and 42 are brought into abutting state, and both sockets 2 and 2 are arranged in a straight line without being displaced.

When attaching the lamp 37 to the socket 2, fit the socket cover 42 to the lamp 37 in advance, and insert and lock the terminal pin of the lamp 37 into the terminal pin insertion hole L38 of the lamp mounting part 36 of the socket 2. Fit the socket cover 42 onto the socket 2.

Further, the socket cover 42 slides forward and backward while being guided by the socket body 5 and the spring piece 18 of the socket body mounting member 4.

In the above embodiment, the engaging holding portions 19 and 20 were formed on the side plate portion 14 of the socket body mounting member 4 of the socket 2, and the engaging protrusion 45 was formed on the socket cover 42. 14 is formed with an engaging protrusion 45,
The socket cover 42 may be provided with engaging and holding portions 19, 20 formed in the holes and in a conventional manner.

Further, in the above embodiment, the socket cover 42 includes the socket body 5 of the socket 2, the socket body mounting member 4, and the lid body 3.
Although the socket 2 is slidably fitted to the socket 2, the socket 2 may be fitted to the entire socket 2, for example, to the mounting base 3.

According to the present invention, each socket cover, which is slidably fitted in the direction in which the straight tube lamp is installed, is slidably fitted to the sockets of adjacent appliance bodies whose back faces are opposite to each other in the same direction. Since the socket cover of one socket was fitted to the other socket to prevent misalignment of both sockets, the fixture bodies equipped with straight tube lamps were installed side by side in the longitudinal direction, which is the axial direction of the lamp. In this case, the adjacent covers facing each other on the back prevent the socket from shifting, allowing for a stylish installation of line-shaped lighting fixtures.
In addition, there is no need to use other parts for connection, which makes installation work easier, eliminates the need to increase the number of parts, and can be done at low cost.Furthermore, the socket cover covers the socket without exposing it, so it can be used as a stand-alone device. Even when used, the appearance does not deteriorate.

[Brief explanation of drawings]

Fig. 1 is a side view showing an installed state of a lighting fixture showing one embodiment of the present invention, Fig. 2 is an exploded perspective view of the same socket part, Fig. 3 is a cross-sectional view showing the same as the above individually installed state, and Fig. 4 The figure is a sectional view showing a state in which the above-mentioned parts are installed side by side. 1... Appliance body, 2... Mounting base 3, socket body mounting member 4, and socket body 5. Lamp socket l-119, 20... Engagement holding part, 37... Straight tube lamp, 42... Socket cover, 45... Engaging protrusion.

Claims (1)

[Scope of Claims] 1. An appliance body, a straight tube lamp socket with lamp device parts mounted on both ends of the appliance body facing each other, and a lamp socket that slides into each socket in the mounting direction of the straight tube lamp. a socket cover that is movably fitted to the sockets of adjacent instrument bodies that are arranged side by side in the vertical direction and whose back faces are opposite to each other; A lighting device characterized in that the socket cover of one socket is fitted to the other socket by sliding the socket cover fitted to the socket in the same direction, thereby regulating the displacement of both sockets. 2. A patent claim characterized in that an engaging protrusion is provided protrudingly on one of the socket and the socket cover, and an engaging holding part is formed on the other that engages the engaging protrusion to position and hold the socket cover. Illuminator 5 described in scope 1
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