JP4265985B2 - lighting equipment - Google Patents

Description

  The present invention mainly relates to a luminaire provided with an annular lamp socket.

  Conventional lighting fixtures of this type include an annular fluorescent lamp socket that is screwed to the fixture body, and an elastic locking claw that is elastically locked to the mounting hole of the fixture body, and the annular lamp socket is attached to the fixture body and the fixture. There were things sandwiched between covers (see, for example, Patent Document 1).

The former increases the cost due to the addition of screws and nuts, and the work increases, but the latter does not require a screw or the like on the instrument body and can be attached with one touch.
Japanese Utility Model Publication No. 5-8890

  However, in the latter case, in order to secure sufficient mounting strength, it is necessary to increase the elasticity of the locking claw, such as making the locking claw thick, and therefore the locking claw is inserted into the locking hole against the elasticity. It is necessary to increase the insertion force, resulting in poor assemblability.

  Accordingly, an object of the present invention is to provide a lighting fixture in which an annular lamp socket can be attached to the fixture body with a single touch and with a small operating force, and does not require work such as screwing or the addition of parts.

  The lighting fixture of this invention has the socket attachment surface in which the fixture main body formed the socket attachment hole. The lamp socket has an abutting surface that abuts on the socket mounting surface of the instrument body, and has a lamp pin insertion portion on the opposite side of the abutting surface. Further, it is a hook shape formed by a rising rising from the contact surface and a locking piece extending parallel to the contact surface from the rising and extending in the center direction of the instrument body, and is inserted into the socket mounting hole. At the same time, by moving the abutment surface along the socket attachment surface, the locking piece has an attachment portion that engages with the socket attachment surface of the instrument body opposite to the socket attachment surface. An instrument member such as an instrument cover has an insertion part that exposes the lamp pin insertion part side of the lamp socket, and is attached to the front side of the instrument body. The lamp socket is provided with a fixing portion that engages with an edge of the insertion portion in a state where the locking piece is locked to the instrument main body and prevents the locking piece from coming out of the socket mounting hole.

  The said structure WHEREIN: The said socket attachment hole and the said attachment part have a pair, and the center axis | shaft of the said lamp pin insertion part is located between the said socket attachment holes.

  The said structure WHEREIN: A pair of said attaching part is located in a direction toward the center of the said instrument main body, and the said locking piece of the said attaching part used as an outer side exists on the center axis | shaft of the said lamp pin insertion part.

  The said structure WHEREIN: The said instrument member is a substantially dish-shaped instrument cover, the said insertion part is formed in the peripheral part of the said instrument cover, and the said fixing | fixed part has an inclined surface corresponding to the inclination of the said insertion part vicinity.

  According to the lighting fixture of the present invention, the locking piece is inserted into the socket mounting hole, the lamp socket is slid along the fixture body to engage the locking piece with the fixture body, and the fixture cover or the like is attached to the fixture body. As a result, the lamp socket can be mounted with a single touch and with a small operating force, and further, work such as screwing and the addition of parts are not required. Further, since the lamp socket is held by the locking piece and the fixing portion, the force when the lamp is removed is distributed to the mounting portion and the fixing portion. Furthermore, since the locking piece is directed to the center of the fixture body, the load applied to the locking piece of the lamp socket when the lamp is removed can be received on the center side of the fixture main body, which is stronger and less deformable. Therefore, it is possible to reduce the cost such as thinning the instrument body. In addition, since the locking piece is directed to the center, the socket mounting hole can be provided on the edge side of the instrument body. For example, the socket mounting hole can be configured as a notch from the edge of the instrument body. Can be small. Further, since the fixture body is clamped between the contact surface of the lamp socket and the locking piece, there is no need for a reinforcing rib etc. that receives a force in the socket pushing direction that is the thickness direction of the fixture body, and the shape of the fixture body is simple, for example. Since it can be configured with a flat surface, instability of the mounting is likely to occur when it is complicated, but the mounting of the lamp socket can be stabilized.

  When the central axis of the lamp pin insertion part is positioned between a pair of mounting parts, the rotational force due to the lamp attaching / detaching operation is applied to the lamp socket as compared with the case where only one mounting part or the central axis is not between the pair of mounting parts. Since it is not added, it is difficult to break the locking piece.

  When the locking piece of the outer mounting portion is on the central axis of the lamp pin insertion portion, it is possible to receive a load at the time of attaching / detaching the lamp, etc., at a portion having a higher strength inside the fixture body in the radial direction of the fixture body. .

  The inclined surface of the fixing part can serve to prevent the lamp socket from being detached, and the load applied to the mounting part of the lamp socket when the lamp is removed can be distributed in the direction along the inclined surface of the fixing part. It is possible to reduce costs such as reducing the force applied in the plate thickness direction and making the instrument body thinner. Furthermore, in the case of a lamp socket in which the attaching / detaching direction of the lamp socket is oriented in a direction perpendicular to the inclined surface of the fixed portion, the lamp removing force can be received by the inclined surface of the fixed portion and received by the corner of the fixed portion. Compared to the above, there is an effect of preventing partial deformation of the instrument cover or the like due to stress concentration.

  A first embodiment of the present invention will be described with reference to FIGS. That is, this lighting fixture is for ring lamps, and has a fixture body 1, a lamp socket 2, and fixture members such as a fixture cover 3.

  The instrument body 1 has a socket mounting surface 5 in which a socket mounting hole 4 is formed. In the embodiment, for example, the mounting portion 8 is formed in a disc shape, and a lamp cover 30 and a light distribution control member such as a globe are attached to the peripheral portion. Lighting circuit components such as ballasts, switches, terminal blocks, etc. (not shown) are attached to the lower surface of the appliance body 1. A pair of socket mounting holes 4 are formed side by side in the radial direction toward the center of the disk of the instrument body 1 in the socket mounting portion 6 near the peripheral edge.

  The lamp socket 2 has a contact surface 9 that contacts the socket mounting surface 5 of the instrument body 1, and has a lamp pin insertion portion 13 on the opposite side of the contact surface 9. The contact surface 9 of the lamp socket 2 is formed on the upper surface, and the lamp pin insertion portion 13 is formed on the lower surface. For example, as shown in FIG. 4, the lamp pin insertion portion (receiver portion) 13 includes a plurality of receivers (conductive plates) that receive the lamp pins in receiving holes 13 a arranged in four squares. The lamp socket 2 has a mounting portion 12 on the abutting surface 9, and the mounting portion 12 is formed by a rise 10 rising from the abutting surface 9 and a locking piece 11 extending from the rising 10 in parallel to the abutting surface 9. It is a key shape. By inserting the mounting portion 12 into the socket mounting hole 4 and moving the contact surface 9 along the socket mounting surface 5, the locking piece 11 is engaged with the socket mounting surface 5 opposite to the socket mounting surface 5 (back surface). Match. Here, the locking piece 11 extends in the central direction of the instrument body 1, that is, the central direction of the annular lamp 14 in such a posture that the lamp pin insertion portion 13 inserts the lamp pin of the annular lamp 14. Further, as shown in FIG. 8A, the attachment portion 12 has a total length A in the extending direction of the locking piece 11, and a distance B from the rising 10 to the outer end portion of the contact surface 9 is A <B. . As a result, the socket mounting hole 4 is closed by the abutting surface 9 in a locked state of the mounting portion 12.

As shown in FIGS. 4 and 5, the lamp socket according to the embodiment forms a body by combining a pair of halves 18 and 19. A plurality of connecting projections 23 are formed in the half 18, a connecting hole 20 is formed in the half 19 through which the connecting protrusion 23 is inserted, and the connecting protrusion 20 is inserted through the connecting hole 20 and protrudes from the outer surface of the half 19. The projection 23 is caulked and fixed by heat caulking or the like. The lamp pin insertion portion 13 is sandwiched between the cutouts 31 of the half bodies 18 and 19, and the lead wire 20 is drawn out between the cutouts 32 of the half bodies 18 and 19. Further, the base end portions of the lamp support springs 21 and 22 are sandwiched between the pair of halves 18 and 19 on both sides of the lamp pin insertion portion 13. Further, the locking piece 11 of the mounting portion 12 is formed on the half body 18, and the contact surface 9 is formed by the half bodies 18 and 19. In this case, a pair of mounting portions 12 are formed corresponding to the socket mounting holes 4, and the central shaft 25 of the lamp pin insertion portion 13 is positioned between them, and the mounting portion 12 is outside the center of the instrument body 1. The locking piece 11 is on the central axis 25 of the lamp pin insertion portion 13. The central shaft 25 passes through the central position 13b between the four receiving holes 13a arranged at the corners forming the square of the insertion surface of the lamp pin insertion portion 13, and is parallel to the axis of the receiving hole 13a.

  The appliance cover 3 has an insertion portion 15 that exposes the lamp pin insertion portion 13 of the lamp socket 2 and is attached to the front surface (lower surface) side of the appliance body 1. The appliance cover 3 is for covering the lighting circuit components on the lower surface of the appliance body 1. In the embodiment, the appliance cover 3 has a substantially dish shape in which the peripheral edge portion 16 is inclined and rises, and the peripheral edge portion 16 is the peripheral edge of the appliance main body 1. It is installed near the section. The insertion portion 15 is formed in the peripheral edge portion 16 by a hole or a notch, and the edge portion of the insertion portion 15 is inclined with respect to the socket mounting surface 5.

  Here, the lamp socket 2 has a fixing portion 24, and the engaging piece 11 is engaged with the edge of the insertion portion 15 in a state where the engaging piece 11 is engaged with the instrument body 1, and the engaging piece 11 is attached to the socket mounting hole 4. Prevent from falling out. In the embodiment, the fixing portion 24 protrudes from the both sides of the lamp socket 2 at a position near the center of the fixture body 1, and the fixing portion 24 is formed with an inclined surface 26 that contacts the inclined portion of the appliance cover 3. Accordingly, the force applied by the locking piece 11 in the plate thickness direction of the instrument main body 1 can be reduced by being distributed in the horizontal direction. Specifically, when the force applied to the fixture body 1 from the lamp socket 2 is seen, when the lamp pin of the annular lamp 14 is inserted into the lamp pin insertion portion 13 of the lamp socket 2, the contact surface 9 is caused to move by the force. 1 is pressed against the socket mounting surface 5. When the lamp pin is removed, the lamp socket 2 is prevented from moving by the inclined surface 26 of the fixing portion 24 in the direction parallel to the socket mounting surface 5 and is prevented from being removed, and the inclined surface 26 extends along the insertion portion 15 of the instrument cover 3. The action of pressing the lamp socket 2 against the instrument body 1 occurs. In the direction perpendicular to the socket mounting surface 5, the locking piece 11 is locked to the instrument body 1, and the inclined surface 26 of the fixing portion 24 is engaged with the inclined edge of the insertion portion 15. At this time, even if the lamp socket 2 moves in the inclined direction, the locking piece 11 is locked in the socket mounting hole 4.

  In addition, since the direction perpendicular | vertical to the paper surface of FIG. 1 latches to the edge of the insertion part 15, it cannot move.

  The fixing portion 24 engages with the edge portions on both sides of the insertion portion 15, but a fixing portion 27 that engages with the bottom edge portion of the notch-shaped insertion portion 15 is also provided. Further, the fixing portion 28 is provided at the center of both side surfaces of the lamp socket 2 in order to cope with the difference in shape of the instrument cover 3 and the like.

  The lamp socket 2 of this lighting fixture is mounted by inserting the mounting portion 12 into the socket mounting hole 4 and sliding the contact surface 9 along the socket mounting surface 5 to engage the locking piece 11 with the fixture body 1. The instrument cover 3 is attached to the instrument body 1 and the fixing part 24 is pressed by the edge of the insertion part 15. Thereby, the lamp socket 2 can be attached with a small operation force with a single touch. And since the latching piece 11 engages with the edge part 4a by the side of the instrument center of the socket attachment hole 4 as shown in FIG.8 (b), the lamp socket 2 can be supported by a stronger part.

  The annular lamp 14 is a unit in which a pair of fluorescent lamps having different diameters are concentrically arranged on one plane and are integrally combined by a base part 34. A lamp pin (not shown) of the base part 34 is inserted into the lamp pin insertion part 13, that is, the lamp pin is inserted into each receiving hole 13 a to contact the inner metal receiver. At the same time, the lamp socket 2 is held by the lamp support spring 22. The opposite side of the ring-shaped lamp 14 from the base 34 in the diameter direction is also held by a lamp holding spring (not shown) provided in the instrument body 1.

A second embodiment of the present invention will be described with reference to FIG. That is, in this lighting fixture, the lamp pin insertion portion 13 of the lamp socket 2 is inclined by approximately 45 ° with respect to the socket mounting surface 5 of the fixture body 1, and the lamp socket 2 is mounted with one annular lamp 14. is there. For this reason, the annular lamp 14 is also removed in the inclined direction, but is inclined in a direction perpendicular to the inclined surface 26 of the fixing portion 24, so that the inclined surface 26 of the fixing portion 24 is connected to the edge of the insertion portion 15 of the instrument cover 3. Can be received in the department. For this reason, it is hard to produce the partial deformation | transformation of the instrument cover 3 compared with the case where it receives at the corner | angular of the fixing | fixed part 24. FIG.

  A third embodiment of the present invention will be described with reference to FIG. That is, in the first embodiment, the socket mounting hole 4 on the outside of the instrument body 1 is formed by a notch. Thereby, it becomes possible to make the external shape of the instrument main body 1 smaller.

  It should be noted that other separate members can be used in place of the instrument cover 3.

It is principal part sectional drawing of the lighting fixture of 1st Embodiment of this invention. It is principal part sectional drawing of the position which shifted | deviated from the lamp socket. It is a half section side view of a lighting fixture. It is a perspective view of a lamp socket. It is a disassembled perspective view of a lamp socket. (A) is a front view of a lamp socket, (b) is a top view, (c) is a bottom view. (A) is a rear view of a lamp socket, (b) is a left side view, and (c) is a right side view. (A) is explanatory drawing explaining the relationship between an attaching part and a socket attachment hole, (b) is a schematic plan view of an instrument main body. It is principal part sectional drawing of the lighting fixture of 2nd Embodiment. It is a schematic plan view which shows the socket attachment hole of the instrument main body of 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument body 2 Lamp socket 3 Instrument cover 4 Socket mounting hole 5 Socket mounting surface 9 Contact surface 10 Rising 11 Locking piece 12 Mounting part 13 Lamp pin insertion part 14 Ring lamp 15 Insertion part 24 Fixing part 25 Center axis 26 Inclined surface

Claims (4)

An instrument body having a socket mounting surface in which a socket mounting hole is formed;
It has a contact surface that contacts the socket mounting surface of the instrument body, has a lamp pin insertion portion on the opposite side of the contact surface, and rises from the contact surface and rises from the rise to the contact surface. It is a hook shape formed with a locking piece that is parallel and extends in the center direction of the instrument body, and is inserted into the socket mounting hole and moves the contact surface along the socket mounting surface. A lamp socket having a mounting portion on which the locking piece engages the opposite side of the socket mounting surface of the instrument body;
An instrument member that has an insertion part that exposes the lamp pin insertion part side of the lamp socket and is attached to the front side of the instrument body;
A lighting fixture in which the lamp socket is provided with a fixing portion that engages with an edge of the insertion portion in a state where the locking piece is locked to the fixture main body and prevents the locking piece from coming off from the socket mounting hole.   The lighting fixture according to claim 1, wherein the socket mounting hole and the mounting portion have a pair, and a central axis of the lamp pin insertion portion is positioned between the socket mounting holes.   The lighting fixture according to claim 2, wherein the pair of attachment portions are arranged in a direction toward the center of the fixture main body, and the locking piece of the attachment portion which is an outer side is on a central axis of the lamp pin insertion portion.   The said instrument member is a substantially dish-shaped instrument cover, The said insertion part is formed in the peripheral part of the said instrument cover, The said fixing | fixed part has an inclined surface corresponding to the inclination of the said insertion part vicinity. The lighting fixture according to claim 2 or claim 3.

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