JP2010108644A - Lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture capable of easily attaching and detaching a fluorescent lamp without damaging it, and capable of thinning as a whole. <P>SOLUTION: By approaching a fluorescent lamp 20 to a fixture body 11, a tip 353 of a rod-like member 35 fitted on a lamp socket 30 is progressed into a heart-shaped route 24 from an opening 241 of that 24 fitted on a base part 22 and moved along the heart-shaped route 24. After the fluorescent lamp 20 is approached to the fixture body 11, then, separated by biasing force of the elastic member 33, the tip 353 of the rod-like member 35 is locked to a lock part fitted at a center of the heart-shaped route 24, so that the fluorescent lamp 20 is strongly retained by the lamp socket 30. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lighting fixture using a straight tube fluorescent lamp.

  Conventionally, there has been proposed a lighting fixture in which a fluorescent lamp having a pair of lamp pins provided so as to protrude in a direction orthogonal to the axial direction of a straight fluorescent tube is used (see, for example, Patent Document 1).

  As shown in FIG. 13A, the fluorescent lamp 100 has a base portion 102 attached to the peripheral surface of a rod-shaped fluorescent tube 101, that is, the main light emitting surface. The base portion 102 includes a base portion main body 103 fixed to the main light emitting surface, and two lamp pins 104 provided on the base portion main body 103 in an orthogonal direction (downward) with respect to the main light emitting surface.

  The base part main body 103 has a locking protrusion 105 extending substantially parallel to the lamp pin 104. As shown in FIG. 13B, the locking projection 105 has a substantially cylindrical head 106 at the lower end and a neck 107 connected to the top of the head 106.

Therefore, in order to attach the fluorescent lamp 100 to the lamp socket, first, the head 106 of the locking projection 105 of the fluorescent lamp 100 is held by the holding portion made of an elastic member of the lamp socket, and the lamp pin 104 is fixed. Insert into the lamp socket slot.
Moreover, the fluorescent lamp 100 can be removed by pulling out the fluorescent lamp 100 in the reverse direction.
JP 2008-117682 A (FIG. 1)

  However, in the lighting fixture as described above, the lamp pin 104 is pushed into the lamp socket, and the base portion 102 of the fluorescent lamp 100 is held by the elastic member. In order to prevent the fluorescent lamp 100 from dropping, the elastic member is used. The base part 102 is firmly held.

For this reason, when removing the fluorescent lamp 100, it is necessary to grip and pull out the fluorescent tube with a certain amount of force. If the place where the force is applied, such as pulling the central portion of the arc tube, is not appropriate, the fluorescent lamp will be damaged. There was a problem that there was a risk of it.
In addition, since a sufficient work space is required around the base portion, there is a problem that it is difficult to make the lighting fixture thin.

  The present invention has been made in order to solve the conventional problems, and provides a lighting apparatus that can be easily attached and detached without damaging the fluorescent lamp and can be thinned as a whole. With the goal.

  The luminaire of the present invention supplies a fluorescent lamp having a pair of lamp pins provided protruding from each base portion provided on the outer peripheral surface near both ends of a straight fluorescent tube, and holding the lamp pins to supply power A pair of lamp sockets, wherein the lamp socket has a pair of lamp sockets extending in the direction of the base and bent inward along a direction perpendicular to the axial direction of the fluorescent tube. A rod-shaped member is provided so as to be elastically deformable in the axial direction, and a heart-shaped path to which the distal end portion of the rod-shaped member is movable is provided on both side surfaces of the base portion in a direction orthogonal to the axial direction. Is provided in the center of the heart-shaped path with a locking portion for locking the tip of the rod-shaped member, and the base portion and the lamp socket. Leave The elastic member has a structure which is provided for.

With this configuration, by bringing the fluorescent lamp closer to the fixture body, the tip of the rod-shaped member provided in the lamp socket enters the heart-shaped path from the opening of the heart-shaped path provided in the base, and the heart-shaped path Move along. Then, when the fluorescent lamp is moved closer to the instrument body and then separated by the biasing force of the elastic member, the tip of the rod-shaped member is locked to the locking portion provided at the center of the heart-shaped path, and the fluorescent lamp is Strongly held by the lamp socket. When the fluorescent lamp is brought closer to the instrument body from the locked state, the tip of the rod-shaped member is detached from the locking portion. Then, when the fluorescent lamp is separated from the instrument body by the urging force of the elastic member, the tip portion is detached from the opening of the heart-shaped path, so that the fluorescent lamp is removed from the lamp socket.
When the fluorescent lamp is brought close to the instrument body, the vicinity of the end of the fluorescent lamp provided with the base is pressed. Further, when the fluorescent lamp is separated from the instrument body, the fluorescent lamp is separated by the biasing force of the elastic member and the weight of the fluorescent lamp.
For this reason, when the fluorescent lamp is attached / detached, the fluorescent lamp is simply pressed, so that the fluorescent lamp can be easily attached / detached. Further, since it is not necessary to hold the fluorescent tube, almost no work space is required for attachment / detachment, and the whole can be made thin.

  Moreover, the lighting fixture of this invention has a structure where a pair of said rod-shaped member is provided in parallel with the said lamp pin, and the said lamp pin is provided in the direction orthogonal to the axial direction of the said fluorescent tube.

  With this configuration, the lamp pin is arranged in a direction orthogonal to the fluorescent tube, and the rod-shaped member is provided on the straight line. Therefore, the fluorescent lamp can be prevented from being tilted by the pushing operation when the fluorescent lamp is attached or detached. Operation can be made more reliably.

  Moreover, the lighting fixture of this invention has the structure by which the said elastic member is arrange | positioned on the straight line which connects a pair of said rod-shaped member.

  With this configuration, since the elastic member is arranged on a straight line connecting the pair of rod-shaped members, the locking part for fixing the base part is also arranged on the straight line, and the balance of force in the attaching / detaching operation of the fluorescent lamp is good. Operation feeling is improved.

  Furthermore, the lighting fixture of the present invention is provided with a convex portion that protrudes outward in the width direction from the base portion, and is provided with a support spring that locks the convex portion on the lamp socket, and the base portion contacts the lamp socket. The front end of the support spring locks the convex portion before coming into contact.

  With this configuration, the support spring locks the convex portion provided on the base before the base and the lamp socket come into contact with each other, so that the fluorescent lamp can be temporarily held and the safety against dropping of the fluorescent lamp is improved. To do.

  In the present invention, when the fluorescent lamp is brought close to the instrument body, the vicinity of the end of the fluorescent lamp provided with the base is pressed. Further, when the fluorescent lamp is separated from the instrument body, the fluorescent lamp is separated by the biasing force of the elastic member and the weight of the fluorescent lamp. For this reason, when the fluorescent lamp is attached / detached, the fluorescent lamp is simply pressed, so that the fluorescent lamp can be easily attached / detached. Further, since it is not necessary to hold the fluorescent tube, it is possible to provide a luminaire having an effect that it is possible to make the whole thin, since almost no work space is required for attachment / detachment.

  Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.

  1 is a perspective view of a lighting fixture according to an embodiment of the present invention, FIG. 2 is a perspective view showing a state before a fluorescent lamp is mounted on the lighting fixture according to the embodiment of the present invention, and FIG. 3 is an exploded perspective view of a lamp socket. 4 and FIG. 4 are a front view and a side view of the state before the fluorescent lamp is mounted, FIG. 5A is a front view of the heart-shaped path, and FIG. 5B is a cross-sectional view taken along the line BB in FIG. FIG. 5C is a cross-sectional view taken along the line CC in FIG. 5A, FIGS. 6 to 9 are a front view and a side view in the middle of mounting the fluorescent lamp, and FIG. FIG. 11 is a front view and a side view showing a state where the fluorescent lamp is removed, and FIG. 12 is a front view and a side view showing a temporary holding state where the fluorescent lamp is removed from the lamp socket. .

  As shown in FIG. 1 and FIG. 2, the luminaire 10 according to the embodiment includes a pair of lamp pins 23 provided so as to protrude from each base portion 22 provided on the outer peripheral surface in the vicinity of both ends of the straight fluorescent tube 21. And a pair of lamp sockets 30 that hold the lamp pins 23 and supply electric power. The pair of lamp sockets 30 and 30 are provided in the lighting fixture main body 11 at a predetermined interval.

  As shown in FIG. 3, the lamp socket 30 includes a rectangular box-shaped lamp socket body 31 having an open top surface, a pair of terminal plates 32 accommodated in the interior space of the lamp socket body 31, and a base portion 22 from the lamp socket 30. It has an elastic member 33 that separates, a cover 34 that covers the opening on the upper surface of the lamp socket body 31, a rod-shaped member 35, and a support spring 36 that holds the base portion 22.

  The lower surface 311 of the lamp socket body 31 is provided with a pair of notches 312 and 312 through which the lamp pin 23 penetrates upward from the lower side, and a rectangular window 313 through which the elastic member 33 penetrates and moves up and down. . Further, a rotation recess 315 for rotating the rod-shaped member 35 is provided in a fan shape extending downward on the side surface 314 of the lamp socket body 31 next to the window 313.

  The terminal plate 32 has a connecting terminal portion 321 to which an electric wire from a lighting device (not shown) attached to the luminaire main body 11 is connected on the axially outer side (left side in FIG. 3). Has a lamp pin holding part 322 for holding the lamp pin 23 and energizing it. The lamp pin holding portion 322 is disposed above the notch 312 of the lamp socket main body 31, and the lower end portion 323 extends outward so that the lamp pin 23 rising from below can be easily held.

  The elastic member 33 includes a rectangular box-shaped case 331 whose upper surface is open, and a spring 332 that is accommodated in the internal space of the case 331 and biases the case 331 downward. The elastic member 33 is disposed on a straight line connecting the pair of support portions 352 of the rod-shaped member 35.

  The cover 34 is a member that covers the opening on the upper surface of the lamp socket body 31, and the lower surface 341 is provided with a spring holding portion 342 that fits and positions the upper end of the spring 332. The side surface 343 of the cover 34 is provided with a turning recess 344 that allows the rod-like member 35 to turn. In addition, a fitting recess 345 that connects the left and right turning recesses 344 and is positioned so that the upper portion 351 of the rod-like member 35 can be fitted and rotated is provided on the upper portion of the turning recess 344.

  The rod-like member 35 is formed in an overall C-shape that is opened downward by bending an elastic member having a circular cross section. That is, a pair of support portions 352 are formed downward from the left and right ends of the upper portion 351, and an engagement portion (tip portion) 353 is formed by bending the tip of the support portion 352 inward. That is, the engaging portion 353 is disposed on a straight line connecting the pair of support portions 352.

  The upper portion 351 of the rod-shaped member 35 is positioned by fitting into a fitting recess 345 provided on the upper surface of the cover 34, and the left and right support portions 352 are accommodated in the rotating recess 315 on the side surface 314 of the lamp socket body 31. Is done. Further, the engaging portion 353 at the lower end of the rod-shaped member 35 protrudes below the lamp socket body 31 (see FIG. 4). The rod-shaped member 35 is provided in parallel with the lamp pin 23.

  The support spring 36 is formed in a C shape as a whole by a leaf spring member, and a holding portion 361 that protrudes inward is provided at the left and right lower end portions. As shown in FIG. 4, the support spring 36 is placed on the lamp socket main body 31 from above the cover 34, and the tip portion protrudes below the lamp socket main body 31.

As shown in FIG. 4, a pair of lamp pins 23 are planted on the upper surface 221 of the base part 22, and the lamp pins 23 are provided in a direction orthogonal to the axial direction of the fluorescent tube 21. On the side surface 222 of the base portion 22, a convex portion 223 that protrudes outward in the width direction is provided. The convex portion 223 is held by a holding portion 361 at the tip of the support spring 36.
On the side surface 222 of the base portion 22, a heart-shaped path 24 in which the engaging portion 353 at the tip end portion of the rod-shaped member 35 is movable is recessed. The heart-shaped path 24 is provided with the heart-shaped tip facing upward, and the tip opens to the upper surface 221 of the base part 22 (opening 241).

  As shown in FIG. 5A, the heart-shaped path 24 has an opening 241 at the tip (upper end), a heart-shaped island 242 is provided in the center, and the entire heart-shaped path is recessed. Has been. A locking portion 244 is recessed at the lower center of the island 242. The path 24 is provided with step portions 245 and 246 at two locations.

  Next, an operation of mounting the fluorescent lamp 20 on the lamp socket 30 of the lighting fixture body 11 will be described.

  FIG. 4 shows a state before the fluorescent lamp 20 is attached to the lamp socket 30. The support spring 36 protrudes downward most, and the rod-shaped member 35 and the elastic member 33 also protrude downward.

  Next, as shown in FIG. 6, when the fluorescent lamp 20 is raised to approach the lamp socket 30, the holding portion 361 at the tip of the support spring 36 of the lamp socket 30 contacts the convex portion 223 at the upper end of the base portion 22. Touch. Stop in this state.

Next, as shown in FIG. 7, when the fluorescent lamp 20 is further raised, the holding portion 361 of the support spring 36 gets over the convex portion 223 of the base portion 22. Thereby, since the fluorescent lamp 20 is temporarily held in the lamp socket 30, the fall is prevented.
When the fluorescent lamp 20 is further raised, the engaging portion 353 at the tip of the rod-shaped member 35 enters the heart-shaped path 24 from the opening 241, and the lower end surface of the elastic member 33 comes into contact with the upper surface 221 of the base portion 22.

When the fluorescent lamp 20 is further raised, as shown in FIG. 8, the engaging portion 353 of the rod-shaped member 35 contacts the sharp tip (upper end) of the heart-shaped island 242 provided at the center of the heart-shaped path 24. Touch. At this time, as shown in FIG. 5A, when entering the path 24 from the opening 241, the engaging part 353 advances to the path on the left side of the island 242 by the action of the step 245 (the middle arrow in FIG. 5A) A). Accordingly, the support portion 352 of the rod-shaped member 35 is elastically deformed and rotated in the direction of the arrow.
At this time, the lamp pin 23 passes through the notch 312 provided on the lower surface 311 of the lamp socket body 31, is inserted into the lamp pin holding portion 332 of the terminal board 32, is held, and is conducted.

  When the fluorescent lamp 20 is further raised, as shown in FIG. 9, the engaging portion 353 of the rod-shaped member 35 reaches the lower end portion 243 of the heart-shaped path 24 (arrow B in FIG. 5 (A)) and the base portion The upper surface 221 of 22 is in contact with the lower surface 311 of the lamp socket 30. Accordingly, the fluorescent lamp 20 does not rise any further.

  When the hand is released in the state shown in FIG. 9, the base portion 22 is lowered by the elastic force of the spring 332 of the elastic member 33 and separated from the lamp socket 30 as shown in FIG. 10. At this time, since the rod-shaped member 35 moves directly downward by its own elastic force, the engaging portion 353 of the rod-shaped member 35 is held by the locking portion 244 provided on the island 242 of the heart-shaped path 24 ( Arrow C in FIG. 5 (A). As a result, the fluorescent lamp 20 is mounted on the lamp socket 30.

  Next, to remove the mounted fluorescent lamp 20 from the lamp socket 30, the fluorescent lamp 20 is raised again as shown in FIG. As a result, the engaging portion 353 of the rod-shaped member 35 reaches the lower end portion 247 and the upper surface 221 of the base portion 22 contacts the lower surface 311 of the lamp socket 30. Accordingly, the fluorescent lamp 20 does not rise any further.

  Next, when the hand is released from the fluorescent lamp 20, the fluorescent lamp 20 descends due to the elastic force of the elastic member 33 and the weight of the fluorescent lamp 20. At this time, the engaging portion 353 of the rod-shaped member 35 is raised, but contacts the step portion 246 provided in the path 24, so that it moves while rotating in the direction of the arrow as shown in FIG. Then, proceed along the right path of the island 242 (arrow D in FIG. 5A).

Then, as shown in FIG. 12, when the engaging portion 353 advances along the path 24 and reaches the opening 241 (arrow E in FIG. 5A), the engaging portion 353 is detached from the path 24. At this time, since the holding portion 361 of the support spring 36 temporarily holds the convex portion 223 of the base portion 22, the fluorescent lamp 20 does not fall.
In order to remove the fluorescent lamp 20, the convex portion 223 of the base portion 22 is pulled down from the holding portion 361 of the support spring 36 to release the temporary holding state.

  As described above, according to the lighting fixture 10 according to the embodiment described above, the engaging portion 353 of the rod-shaped member 35 provided in the lamp socket 30 is formed on the base portion 22 by pressing the fluorescent lamp 20 against the lamp socket 30. The heart-shaped path 24 enters and is locked through the opening 241 of the provided heart-shaped path 24. On the other hand, when removing the fluorescent lamp 20, the fluorescent lamp 20 is pressed against the lamp socket 30. For this reason, when the fluorescent lamp 20 is attached or detached, the fluorescent lamp 20 can be easily attached or detached because the fluorescent lamp 20 is simply pressed. Further, since it is not necessary to hold the fluorescent tube 21, almost no work space is required for attachment / detachment, and the whole can be made thin.

  Further, since the lamp pin 23 is arranged in a direction orthogonal to the fluorescent tube 21 and the rod-like member 35 is provided on the straight line, it is possible to prevent the fluorescent lamp 20 from being tilted by a pushing operation when the fluorescent lamp 20 is attached or detached. It can be attached and detached more reliably.

  Further, since the elastic member 33 is arranged on a straight line connecting the pair of rod-like members 35, the locking portion 244 for fixing the base portion 22 is also arranged on the straight line, and balance of force in the attaching / detaching operation of the fluorescent lamp 20 is achieved. It improves the operational feeling.

  In addition, since the support spring 36 engages the convex portion 223 provided on the base portion 22 before the base portion 22 and the lamp socket 30 come into contact with each other, the fluorescent lamp 20 can be temporarily held, and the fluorescent lamp 20 is dropped. The safety against is improved.

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

The perspective view of the lighting fixture concerning embodiment of this invention The perspective view which shows the state before mounting | wearing with the fluorescent lamp in the lighting fixture concerning embodiment of this invention. Disassembled perspective view of lamp socket Front view and side view of the state before installing the fluorescent lamp (A) is a front view of a heart-shaped path, (B) is a cross-sectional view at position BB in (A), and (C) is a cross-sectional view at position CC in (A). (A) and (B) are a front view and a side view of a state in which a fluorescent lamp is mounted (A) and (B) are a front view and a side view of a state in which a fluorescent lamp is mounted (A) and (B) are a front view and a side view of a state in which a fluorescent lamp is mounted (A) and (B) are a front view and a side view of a state in which a fluorescent lamp is mounted A front view and a side view showing a state where the fluorescent lamp is completely mounted. Front view and side view showing the state of removing the fluorescent lamp Front and side views showing a temporary holding state in which the fluorescent lamp is removed from the lamp socket (A) The perspective view of the conventional lighting fixture, (B) Sectional drawing of the BB position in (A)

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 Fluorescent lamp 21 Fluorescent tube 22 Base part 222 Side surface 223 Convex part 23 Lamp pin 24 Heart-shaped path 241 Opening part 244 Locking part 30 Lamp socket 33 Elastic member 35 Rod-shaped member 353 Engagement part (tip part)
36 Support spring 361 Holding part (tip)

Claims (4)

A fluorescent lamp having a pair of lamp pins provided so as to protrude from each base provided on the outer peripheral surface in the vicinity of both ends of the straight fluorescent tube;
A pair of lamp sockets for holding the lamp pins and supplying electric power,
The lamp socket is provided with a pair of rod-like members that extend in the direction of the base and whose inner ends are bent inward along a direction orthogonal to the axial direction of the fluorescent tube, and are elastically deformable in the axial direction.
On both side surfaces of the base part in a direction orthogonal to the axial direction, a heart-shaped path through which the tip of the rod-like member can move is recessed with the tip open to the lamp socket side,
The center of the heart-shaped path is provided with a locking portion for locking the tip of the rod-shaped member,
An illuminating device, wherein an elastic member for separating the base portion and the lamp socket is provided.   The lighting fixture according to claim 1, wherein the pair of rod-shaped members are provided in parallel with the lamp pins, and the lamp pins are provided in a direction orthogonal to an axial direction of the fluorescent tube.   The lighting apparatus according to claim 1, wherein the elastic member is arranged on a straight line connecting the pair of rod-shaped members. Providing a convex part protruding outward in the width direction from the base part, and providing a support spring for locking the convex part to the lamp socket,
The lighting fixture according to any one of claims 1 to 3, wherein a tip of the support spring engages the convex portion before the base portion contacts the lamp socket.

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