JP5328514B2 - lighting equipment - Google Patents

Description

  The present invention relates to a luminaire using a lamp provided with a pair of lamp pins in a direction perpendicular to the axis of the arc tube.

  Conventionally, in a lighting fixture using a lamp in which a pair of lamp pins is provided in a direction perpendicular to the axis of the arc tube, even if the lighting fixture is twisted, the socket is prevented from being twisted and the connection between the socket and the fluorescent lamp is more reliable. There has been proposed a lighting fixture that can be used for the above (see Patent Document 1, for example).

  Hereinafter, a socket 100 used in a conventional lighting apparatus will be described with reference to FIG. The socket 100 includes a mounting plate 101, a flat plate 102, and a socket portion 103. The attachment plate 101 is a member for attaching the socket 100 to the instrument body. The socket part 103 supplies electric power by inserting a lamp pin of a fluorescent lamp through an opening (not shown) provided on the upper surface and conducting it to a connection fitting housed inside. Is provided with a wiring outlet 104 for connection to the connection fitting.

  The socket portion 103 is swingably attached to the attachment plate 101 by a coil spring 105, a screw 106, and screws 107 and 107. The screw holes 108, 108 provided in the mounting plate 101 have a diameter larger than that of the screws 107, 107 and smaller than the screw head, are movable with respect to the mounting plate 101, and are fixed to the socket portion 103. Yes. The flat plate 102 is attached to the bottom surface of the socket portion 103, supports one end of the coil spring 105 through the opening 109, and fixes the position of the coil spring 105. A screw 106 is screwed to the mounting plate 101 to support the coil spring 105.

  Thereby, even if the attachment surface to which the attachment plate 101 is attached is inclined, the socket portion 103 is supported so as to be in close contact with the inserted fluorescent lamp. The screws 107 and 107 serve to support the socket portion 103 with the screw head as a stopper when the mounting surface is inclined, or to support the socket portion 103 when removing the fluorescent lamp.

JP 2001-210135 A (FIG. 2)

  However, in the above-described conventional lighting fixture, since the member for connecting the socket portion 103 and the mounting plate 101 is provided between the socket portion 103 and the mounting plate 101, the height of the socket 100 is increased. There is a problem that it is difficult to make the lighting fixture thin. In addition, since the number of parts increases, there is a problem that the cost increases.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus that can be reduced in thickness while reducing the number of parts and reducing the cost.

The luminaire of the present invention is attached to a fluorescent lamp in which a pair of lamp pins protrudes from a base provided on a side surface near both ends of the arc tube in a direction orthogonal to the axis of the arc tube, and an attachment surface of the fixture body. And a socket for supplying power to the fluorescent lamp by inserting the lamp pin, wherein the socket holds the socket body movably holding the socket body into which the lamp pin is inserted. a mounting portion for, provided between the socket body and the mounting portion, have a, an elastic body for holding the posture of the socket, the mounting portion, a socket body for locking the socket body An instrument mounting portion for attaching to the instrument body, and the socket body has an engaging part for engaging with the socket body latch portion of the attachment part, Book Has a mounted portion for mounting the mounting portion, the socket main body locking portion and the engagement portion are configured to be uneven, and the socket main body locking portion as the recess is the mounting portion. An oval locking hole provided in a direction perpendicular to the surface, and the engaging portion as the protrusion inserted through the oval locking hole has a circular cross section or the instrument body side The arc portion is a partially circular shaft portion, and the axial width of the arc tube in the oblong locking hole as the concave is the circular shape of the shaft portion as the convex portion. It has a configuration that is larger than the diameter .

  With this configuration, a lamp pin projecting in a direction perpendicular to the axis of the arc tube from a base provided on the side surface near both ends of the arc tube is inserted into a socket provided in the fixture body to power the fluorescent lamp. Supply. At this time, the socket body into which the lamp pin is inserted in the socket is held movably by the mounting portion, and an elastic body is provided between the socket body and the mounting portion. However, the posture can be corrected and the fluorescent lamp can be securely held. Further, since the posture of the socket main body is held only by the elastic body, the number of parts can be reduced to reduce the cost and reduce the thickness.

Further, according to this configuration, the socket main body locking portion for locking the socket main body is provided in the mounting portion, and the socket main body is provided with the engaging portion for engaging with the mounting portion. The socket body is held by the mounting portion via the joint portion. Moreover, since the mounting part for instruments was provided in the mounting part, and the mounting part was provided in the instrument main body, the mounting part is attached to the instrument main body via the mounting part for instruments and the mounting part.

Also, with this configuration, the socket main body locking portion and the engaging portion are provided in a direction perpendicular to the mounting surface, so that the socket main body can be moved in the vertical direction with respect to the mounting portion. The twist in the width direction (that is, the twist about the longitudinal axis of the instrument body) can be absorbed. In addition, the socket body locking portion and the engaging portion are engaged with irregularities, and since the convex side is circular, the socket body can rotate around the convex side, and the longitudinal twist of the instrument body (ie, the instrument body) Torsion around an axis in a direction perpendicular to the axis).

Further, with this configuration, since the concave and convex inner diameter is larger than the convex outer diameter, the instrument body can be moved in the vertical direction and the front and rear direction.

  Moreover, the lighting fixture of this invention has the structure whose said elastic body is a leaf | plate spring.

  With this configuration, since the leaf spring is provided as an elastic body between the socket main body and the attachment portion, the socket main body can correct the posture even when the instrument main body is twisted, and the fluorescent lamp can be reliably held. Further, since the posture of the socket body is held only by the leaf spring, the number of parts can be reduced to reduce the cost and reduce the thickness.

  Moreover, the lighting fixture of this invention has the structure by which the said leaf | plate spring is formed by cutting and raising from the said attaching part.

  With this configuration, since the leaf spring is formed by cutting and raising the mounting portion, it is not necessary to use other parts, and the number of parts can be reduced to reduce the cost and reduce the thickness.

  Furthermore, the lighting fixture of this invention has the structure that the direction of the raising and lowering of the said leaf | plate spring is staggered.

  With this configuration, the direction of cutting and raising the leaf springs is staggered, so that the lower surface of the socket body can be supported uniformly and the attitude of the socket body can be maintained.

  In the present invention, since the socket body into which the lamp pin is inserted and held in the socket is movably held by the attachment portion, and the elastic body is provided between the socket body and the attachment portion, the socket body is twisted even if the instrument body is twisted. The main body can correct the posture, and can securely hold the fluorescent lamp. In addition, since the socket body is held only by the elastic body, it is possible to provide a lighting apparatus that has the effect of reducing the number of parts and reducing the cost and reducing the thickness.

The perspective view which shows the lighting fixture of 1st Embodiment which concerns on this invention. (A) is a front view of a mounted state of a fluorescent lamp and a socket, and (B) is a cross-sectional view of the position BB in (A) Socket perspective view Disassembled perspective view of socket (A) is a perspective view of the socket attachment part in the lighting fixture of 2nd Embodiment which concerns on this invention, (B) is the front view seen from B direction in (A) (A) is a perspective view of the socket attachment part in the lighting fixture of 3rd Embodiment which concerns on this invention, (B) is the front view seen from B direction in (A) The exploded perspective view of the socket in the conventional lighting fixture

(First embodiment)
Hereinafter, the lighting fixture of 1st Embodiment of this invention is demonstrated using drawing.
As shown in FIG. 1, the lighting fixture 10 of 1st Embodiment which concerns on this invention equips the sockets 21 and 21 provided in the both ends of the fixture main body 20 with the fluorescent lamp 30, and equips the fixture main body 20 with it. Are used by attaching to the ceiling 11 or a wall, for example.

The fluorescent lamp 30 has a straight tube-like arc tube 31 having a circular cross section, and has a base 32 on the side surface near both ends of the arc tube 31. A pair of lamp pins (not shown) is provided on the side surface (upper surface in FIG. 1) of the base body 20 of each base 32, and the axis of the arc tube 31 (hereinafter, “the axis of the arc tube” is simply referred to as “axis”). It protrudes in the orthogonal direction. Further, locking convex portions 321 (see FIG. 2) are provided on both side surfaces of the base 32 in the width direction so as to protrude along the axial direction.
In the description below FIG. 2, for convenience of explanation, a state in which the fluorescent lamp 30 is mounted on the upper side of the socket 21 will be illustrated and described.

As shown in FIGS. 1 and 2, a pair of sockets 21, 21 are attached to the attachment surface 201 of the instrument main body 20 corresponding to the distance between the caps 32 at both ends of the fluorescent lamp 30. Correspondingly, positioning holes 202 are provided at both ends of the instrument body 20 as mounted parts for attaching the socket 21.
As shown in FIGS. 2 to 4, the socket 21 includes a mounting base 22 that is a mounting portion for mounting on the instrument main body 20, and a socket main body 211 that is mounted on the mounting base 22.

The socket main body 211 has a main body rear portion 212 on the axial center side (right side in FIG. 2A) and a main body front portion 213 on the axial end portion side (left side in FIG. 2A). Assembled.
The main body front portion 213 is provided with a pair of holding members 24 and 24 that hold the locking convex portions 321 of the base 32 when the fluorescent lamp 30 is mounted on the socket 21. The holding member 24 is formed of a spring member, and has a locking recess 241 that locks the locking projection 321.

  A pair of conductive plates 25 are accommodated on the axial end portion side of the main body rear portion 212, and an opening 215 for inserting a lamp pin (not shown) and conducting with the conductive plate 25 is provided. A pair of electric wire insertion holes 216 and 216 for connecting electric power supply wires to the conductive plate 25 are opened in the axially central side surface of the main body rear portion 212. Further, on both side surfaces of the main body rear portion 212 in the width direction, shaft portions 214 that are engaging portions are projected outward in the width direction. The shaft 214 has a circular cross section or a partially cut circular cross section, and the end (upper end) on the fluorescent lamp 30 side is circular.

The mounting base 22 includes a bottom plate 221 that faces the mounting surface 201, and a socket body locking plate 222 that is bent up at right angles from both ends in the width direction of the bottom plate 221 at the axial center of the bottom plate 221. Further, a positioning projection 224 as an instrument mounting portion for mounting on the instrument body 20 is provided on the front end portion of the bottom plate 221 so as to protrude downward, and at the rear end portion of the bottom plate 221 as an instrument mounting portion. Screw holes 227 are provided.
Therefore, the socket 21 can be easily attached at a predetermined position by inserting the positioning protrusion 224 into the positioning hole 202 of the instrument body 20 and screwing the screw hole 227.

  The bottom plate 221 is provided with a plurality (two in this case) of leaf springs 26 as elastic bodies for supporting the socket body 211 in a floating state. The leaf springs 26 are provided by cutting and raising the bottom plate 221 of the mounting base 22 that is an attachment portion, and the cutting and raising directions of the adjacent leaf springs 26 are alternate.

  The socket body locking plate 222 is provided with a locking hole 223 which is a socket body locking portion. The locking hole 223 of the mounting base 22 and the shaft portion 214 of the socket body 211 form an unevenness, and the inner diameter of the locking hole 223 on the concave side is larger than the outer diameter of the shaft portion 214 on the convex side. Is also big. Therefore, the shaft portion 214 can move in the axial direction inside the locking hole 223, and the socket main body 211 can move in the axial direction with respect to the mounting base 22. Further, the locking hole 223 is formed in an elliptical shape that is long in the vertical direction, and the socket body 211 is movable in the vertical direction with respect to the mounting base 22.

  The screw 23 is fastened to the tip of the shaft portion 214 with the shaft portion 214 inserted through the locking hole 223. The screw 23 has a screw portion 231 and a head portion 232. The outer diameter of the screw portion 231 is smaller than the inner diameter of the locking hole 223, and the outer diameter of the head 232 is larger than the inner diameter of the locking hole 223. This prevents the shaft portion 214 from dropping from the locking hole 223.

  Next, the behavior of the socket 21 when the instrument body 20 is twisted will be described with reference to FIG. Since the mounting base 22 behaves integrally with the instrument body 20, the behavior of the socket body 211 with respect to the mounting base 22 will be described.

First, the case where the instrument body 20 is twisted in the width direction around the longitudinal axis of the instrument body 20 (the direction of arrow A in FIG. 2B) will be described.
The socket main body 211 is in a state of being lifted from the mounting base 22 by the leaf spring 26, and the shaft portion 214 of the socket main body 211 moves up and down inside the locking hole 223 of the mounting base 22 (in the directions of arrows B and C in FIG. 2B). ) At this time, the amount of movement in the vertical direction of the left and right shaft portions 214 is different, so that the socket body 211 rotates relative to the mounting base 223 in the direction of arrow D in FIG. Thereby, the twist of the instrument body 20 is absorbed.

Next, the case where the instrument body 20 is twisted in the longitudinal direction around an axis orthogonal to the longitudinal axis of the instrument body 20 (the direction of arrow E in FIG. 2A) will be described.
The shaft portion 214 of the socket body 211 has a circular cross section, and the socket body 211 can rotate with respect to the mounting base 22 about the shaft portion 214 (arrow F in FIG. 2A). Thereby, the twist of the instrument main body in the longitudinal direction is absorbed.

  As described above, according to the lighting apparatus 10 according to the first embodiment described above, the socket main body 211 into which the lamp pin is inserted in the socket 21 is movably held by the mounting base 22, and the socket main body 211 and the mounting base 22. Since the leaf spring 26 is provided between the socket body 211 and the instrument body 20 is twisted, the socket body 211 can correct the posture, and the fluorescent lamp 30 can be securely held. Moreover, since the attitude | position of the socket main body 211 is hold | maintained only by the leaf | plate spring 26, a number of parts can be reduced and it can aim at cost reduction and thickness reduction.

  In addition, since the mounting base 22 is provided with a locking hole 223 for locking the socket body 211 and the socket body 211 is provided with the shaft portion 214 that engages with the mounting base 22, the locking base 223 and the shaft portion 214 are interposed. The socket body 211 is swingably held on the mounting base 22. Further, since the positioning protrusion 224 is provided on the mounting base 22 and the positioning hole 202 is provided on the instrument body 20, the socket 21 can be easily positioned.

  Further, since the locking hole 223 and the shaft portion 214 are provided in a direction perpendicular to the mounting surface 201 of the instrument body 20, the socket body 211 can be moved in the vertical direction, and the width direction of the instrument body 20 is Twist can be absorbed. In addition, since the locking hole 223 and the shaft portion 214 are engaged with each other in a concave and convex manner, and the shaft portion 214 on the convex side is circular, the socket body 211 can rotate around the shaft portion 214, and Longitudinal twist can be absorbed.

  Further, since the inner diameter of the locking hole 223 is larger than the outer diameter of the shaft portion 214, the instrument body 20 can be moved in the vertical direction and the front-rear direction.

  Further, since the leaf spring 26 is provided as an elastic body between the socket main body 211 and the mounting base 22, even if the instrument main body 20 is twisted, the posture of the socket main body 211 can be corrected, and the fluorescent lamp 30 can be reliably held. Moreover, since the attitude | position of the socket main body 211 is hold | maintained only by the leaf | plate spring 26, a number of parts can be reduced and it can aim at cost reduction and thickness reduction.

  Further, since the leaf spring 26 is formed by cutting and raising the mounting base 22, it is not necessary to use other parts, and the number of parts can be reduced to reduce the cost and the thickness can be reduced.

  Furthermore, since the direction of cutting and raising the leaf springs 26 is alternate, the lower surface of the socket body 211 can be evenly supported, and the posture of the socket body 211 can be properly maintained.

(Second Embodiment)
Next, the lighting fixture which concerns on 2nd Embodiment of this invention is shown in FIG.
In addition, the same code | symbol is attached | subjected to the site | part which is common in the lighting fixture 10 which concerns on 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 5, in the lighting fixture 10B of 2nd Embodiment of this invention, the rubber board 27 and sponge were interposed as an elastic body between the fixture main body 20 and the socket main body 211B. In addition, brackets 217 as attachment portions are provided on both sides in the width direction of the socket body 211B, and are attached to the instrument body 20 with bolts and nuts 271. The socket body 211B can move up and down within a predetermined range along the bolt 271 and is always urged upward by the rubber plate 27.

  Even in this case, since the socket main body 211B can move relative to the instrument main body 20 according to the length of the bolt 271, even if the instrument main body 20 is twisted, the socket main body 211B can correct the posture, and the fluorescent lamp 30 can be securely attached. Can hold. In addition, the number of parts can be reduced to reduce the cost and reduce the thickness. Further, it is not necessary to cut and raise the rubber plate 27 leaf spring 26, and a simple configuration can be achieved.

(Third embodiment)
Next, the lighting fixture which concerns on 3rd Embodiment of this invention is shown in FIG.
In addition, the same code | symbol is attached | subjected to the site | part which is common in the lighting fixture 10 which concerns on 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 6, in the lighting fixture 10C of 3rd Embodiment of this invention, the leaf | plate spring 26C was provided between the mounting base 22C and the socket main body 211C. The plate spring 26C is formed by cutting and raising a single plate member separate from the mounting base 22C.

  Then, an engagement recess 218 is provided as an engagement portion on both side surfaces in the width direction of the socket body 211C, and the upper end portion of the mounting base 22C is bent inward to serve as a socket body locking portion for locking the engagement recess 218. The locking piece 225 is provided. The mounting base 22C is provided with a bracket 226 as an instrument mounting portion and attached to the instrument body 20 with screws 227.

  Even in this case, since the socket main body 211C can move with respect to the mounting base 22C within the range of the engaging recess 218, the socket main body 211C can correct the posture even if the instrument main body 20 is twisted, and the fluorescent lamp 30 can be securely attached. Can hold.

  In addition, the lighting fixture of this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 Appliance main body 201 Mounting surface 202 Positioning hole (attachment part)
21 Socket 211 Socket body 214 Shaft (engagement part, convex side)
22 Mounting base (Mounting part)
223 Locking hole (Locking part for socket body, concave side)
224 Instrument mounting part 26 Leaf spring (elastic body)
30 fluorescent lamp 31 arc tube 32 base

Claims (4)

A fluorescent lamp having a pair of lamp pins projecting in a direction perpendicular to the axis of the arc tube from a base provided on the side surface in the vicinity of both ends of the arc tube;
A lighting fixture having a socket attached to a mounting surface of the fixture body and supplying power to the fluorescent lamp by inserting the lamp pin;
The socket is
A socket body into which the lamp pin is inserted;
A mounting portion for movably holding the socket body;
Provided between the socket body and the mounting portion, have a, an elastic body for holding the posture of the socket,
The mounting portion has a socket main body locking portion for locking the socket main body, and an instrument mounting portion for mounting on the instrument main body,
The socket body has an engaging portion that engages with the socket body locking portion of the mounting portion;
The instrument body has a mounted portion for mounting the mounting portion;
The locking portion for the socket body and the engaging portion constitute an unevenness,
The socket body locking portion as the recess is an oval locking hole provided in a direction perpendicular to the mounting surface,
The engaging portion as the protrusion inserted into the oblong locking hole is a shaft portion having a circular cross section or a partial circular shape with a part cut off on the instrument body side,
The lighting fixture characterized in that an axial width of the arc tube in the oblong engaging hole as the concave is larger than a diameter of the circular shape of the shaft portion as the convex .   The lighting apparatus according to claim 1, wherein the elastic body is a leaf spring. The lighting apparatus according to claim 2 , wherein the leaf spring is formed by cutting and raising from the mounting portion. The lighting apparatus according to claim 3, wherein the leaf springs are alternately cut and raised.

Images