JP2011233270A - Lamp socket device and lighting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp socket device and a lighting apparatus which do not require post-processing although a lamp socket is enabled to be moved in the width direction of a guide slit with respect to the main body of equipment.SOLUTION: A lamp socket 3 includes a socket body 9 having a contact piece 8 to which a lamp pin is electrically connected, a supporting unit 1 which has a guide slit 2 for guiding the lamp pin in a direction intersecting to the lamp pin and supports the socket body 9, and a fixing unit 5 for fixing the supporting unit 1 to an equipment body 6 so that the supporting unit 1 is movable in the width direction of the guide slit 2. A penetrating long hole 13 which is long in the width direction of the guide slit 2 is formed in the fixing unit 5, and a cylindrical spacer 21 which is longer than the depth of the penetrating long hole 13 is inserted in the penetrating long hole 13. A fixing screw 18 is tightened in a screw hole 16 of the equipment body 6 through the spacer 21, whereby the fixing unit 5 is fixed to the equipment body 6 so as to be movable in the width direction of the guide slit 2.

Description

  The present invention relates to a lamp socket device and a lighting fixture used for attaching a lamp to the lighting fixture.

  Conventionally, there has been proposed a lamp socket device that can be mounted even on a lamp whose central axis is not on the same straight line by allowing the lamp to be attached to and detached from the fixture body without rotating the lamp (patent) Reference 1).

  FIG. 9 shows an example of the lamp 4 in which the central axis of the base 24 is not on the same straight line. The lamp 4 has a pair of caps 24 at both ends in the longitudinal direction of the bulb 25, and the caps 24 are arranged on opposite sides of a plane along the longitudinal direction of the bulb 25. A pair of lamp pins 7 protrude from each base 24. In the illustrated example, the valve 25 is linearly described for convenience, but, for example, a shape in which the inner ends of two involutes each having both caps 24 as outer ends may be employed. The valve 25 can be formed in an appropriate shape between the caps 24.

  Patent Document 13 describes a lamp socket 3 that allows the lamp 4 having the above-described shape to be attached to the fixture body 6 of the lighting fixture 26. The lamp socket 3 includes a support portion 1 that supports a socket body 9 having a pair of contacts 8 (see FIG. 10), and a fixing portion 5 that fixes the support portion 1 to the instrument body 6.

  Hereinafter, the vertical direction is defined according to FIG. 10A, and the front in FIG.

  The support portion 1 is formed in a substantially cylindrical shape having the front-rear direction as the mouth axis direction, and supports the socket body 9 by housing the socket body 9 inside. In the upper part of the peripheral wall of the support portion 1, an operation window 27 is opened along the circumferential direction. A guide slit 2 extending along the vertical direction and opened upward is provided through the front wall of the support portion 1 in the thickness direction of the front wall.

  The fixing portion 5 is integrally provided at the lower portion of the outer peripheral surface of the support portion 1, and couples the lamp socket 3 to the fixture body 6. The binding mode will be described later.

  The socket body 9 is rotatable around a central axis along the front-rear direction of the support portion 1, and an operation lever 11 that protrudes from the operation window 27 of the support portion 1 is provided on the upper outer peripheral surface of the socket body 9. Yes. The operation lever 11 is inserted through the operation window 27. Therefore, the movement range of the operation lever 11 is restricted by both ends of the operation window 27 in the circumferential direction, and as a result, the rotation range of the socket body 9 is restricted.

  In addition, an inlet 28 that is open to the side and the front of the operation lever 11 is formed in the peripheral wall of the socket body 9. Since the socket body 9 is rotatable, it can move between a position where the introduction port 28 overlaps the guide slit 2 in the front-rear direction and a position where the introduction port 28 does not overlap the guide slit 2 in the front-rear direction. That is, by making the width of the guide slit 2 and the introduction port 28 wider than the diameter of the lamp pin 7, a position where the lamp pin 7 can be attached and detached (refer to FIG. 9A, hereinafter referred to as “free position”), and the lamp pin 7. Is rotated between a position where it cannot be attached and detached (see FIG. 9B, hereinafter referred to as “restraint position”).

  A pair of contacts 8 are arranged inside the socket body 9. Both contactors 8 face each other in the width direction of the guide slit 2 at a free position. The distance between the two contactors 8 is larger than the diameter of the lamp pin 7 and is smaller than the distance between the pair of lamp pins 7.

  FIG. 11 shows the relationship between the lamp pin 7 and the contact 8 inside the socket body 9 when viewed from the base of the lamp pin 7 toward the tip, and the socket body 9 is in the free position of FIG. As shown in FIG. 11 (b), it is moved in the clockwise arrow A direction to move to the restraint position shown in FIG. 11 (c).

  In the free position, each contact 8 corresponding to the pair of lamp pins 7 and the lamp pin 7 are in a non-contact state and are not electrically connected.

  In the restraining position, the contact pins 8 corresponding to the pair of lamp pins 7 and the lamp pins 7 are in contact with each other and are electrically connected.

  By the way, the valve 25 tends to have a dimensional error in the longitudinal direction. Therefore, in the lamp 4 having the shape shown in FIG. 9, there is a possibility that the gap between the bases 24 varies in the direction orthogonal to the central axis of the base 24.

  Therefore, Patent Document 1 discloses a lamp socket device in which the support portion 1 is movable in the width direction of the guide slit 2 as shown in FIG.

  That is, the structure which attaches the fixing | fixed part 5 of the lamp socket 3 to the fixture main body 6 using the pair of positioning piece 29 provided in the fixture main body 6 of the lighting fixture 26 is employ | adopted. The positioning piece 29 includes a fixed piece 29a fixed to the instrument main body 6, a standing piece that is continuous with one side of the fixed piece 29a and away from the instrument main body 6, and has a distal end portion along the surface of the instrument main body 6 and the fixed piece 29a. Has a locking piece 29b extended in the opposite direction. The pair of positioning pieces 29 are arranged in such a manner that the tips of the locking pieces 29b face each other.

  On the other hand, in the lamp socket 3, holding grooves 30 extending in the front-rear direction are formed on both side surfaces in the width direction of the guide slit 2 in the fixing portion 5. Then, the distal end portion of the locking piece 29 b of the positioning piece 29 is inserted into each holding groove 30 to be held by the instrument body 6.

  With this structure, a clearance 31 is formed between the leading edge of the locking piece 29b and the bottom surface of the holding groove 30 as shown in FIG. By securing the clearance 31, the support portion 1 can move in the width direction of the guide slit 2 within the range of the clearance 31. As a result, it is possible to absorb an error in the distance between the caps 24 in the direction orthogonal to the central axis of the cap 24.

JP 2008-204932 A (page 19, FIG. 13)

  However, in the lamp socket device shown in FIG. 10, a pair of positioning pieces 29 are necessary to attach the support portion 1 to the instrument body 6 so as to be movable in the width direction of the guide slit 2. Accordingly, the width of the clearance 31 varies depending on the positional relationship between the positioning pieces 29. In this structure, in order to secure the clearance 31 in the width direction of the guide slit 2, accurate mounting accuracy is required for mounting the positioning piece 29.

  Further, in order to prevent the lamp socket 3 from dropping from the positioning piece 15 in the front-rear direction, a post-process is required after the lamp socket 3 is attached to the positioning piece 29. That is, it is necessary to cut and raise the mounting surface of the instrument body 6 or to add a retaining part.

  As described above, when the lamp socket 3 shown in FIG. 10 is used, a two-stage process including a process of attaching the lamp socket 3 to the instrument body 6 and a post-process for preventing the removal is required.

  The present invention has been made in view of the above-described reasons, and provides a lamp socket device and a lighting fixture that can move the lamp socket in the width direction of the guide slit with respect to the fixture body, but does not require post-processing. With the goal.

  The lamp socket device of the present invention can attach a lamp having a plurality of power supply lamp pins projecting in one direction from one base to a lighting fixture, and has a contact to which the lamp pins are electrically connected. A socket body, a support portion that has a guide slit for guiding the lamp pin in a direction intersecting the lamp pin, and supports the socket body, and a support portion is fixed to the fixture body of the lighting fixture so as to be movable in the width direction of the guide slit. A through hole that is long in the width direction of the guide slit and penetrates in the longitudinal direction of the guide slit, and a cylindrical spacer that is longer than the depth of the through hole is inserted into the through hole. The fixing screw is passed through the spacer and the fixing part is fastened to the screw hole of the instrument body, and the fixing part is fixed to the instrument body so as to be movable in the width direction of the guide slit. The features.

  In this lamp socket device, the fixing portion includes a hooking portion that is inserted into a hooking hole that is opened in the tool body and the tip portion of which is in contact with a surface opposite to the surface on which the fixing portion of the tool body is fixed. It is more preferable.

  In this lamp socket device, the fixture main body is provided with one of a rotation restricting boss for restricting the rotational movement of the fixed portion relative to the fixture main body and a rotation restricting elongated hole into which the boss is inserted, and the other is provided with the fixed portion. preferable.

  In this lamp socket device, it is more preferable that the fixture body is provided with a protrusion, and the fixing portion has a surface that contacts the protrusion, and the movement of the fixing portion in the rotational direction with respect to the fixture body is restricted.

  In this lamp socket device, it is more preferable that the spacer is a quadrangular prism and is provided integrally with the instrument body, and the through long hole is opened in a rectangular shape corresponding to the outer shape of the spacer.

  The lighting fixture of the present invention is characterized in that any one of the lamp socket devices described above is provided in a fixture main body.

  The present invention has an advantage that post-processing for preventing the lamp socket from being detached is not required while the lamp socket can be moved in the width direction of the guide slit with respect to the instrument body.

Embodiment 1 is shown, (a) is an exploded perspective view from the guide slit side, (b) is an exploded perspective view from the electric wire insertion hole side. (A) is a perspective view from the guide slit side same as the above, (b) is a perspective view from the same electric wire insertion hole side. It is a principal part top view which shows a screw mounting base same as the above. It is a side view same as the above. It is principal part sectional drawing same as the above. It is operation | movement explanatory drawing same as the above. Embodiment 2 is shown, (a) is an exploded perspective view from the wire insertion hole side, (b) is an exploded perspective view from the guide slit side. It is a perspective view which shows the procedure which attaches the lamp socket of Embodiment 3. FIG. (A) is a perspective view of the state which removed the lamp | ramp from the lamp socket apparatus, (b) is a perspective view of the state which attached the lamp | ramp to the lamp socket apparatus. The conventional lamp socket apparatus is shown, (a) is a front view, (b) is a perspective view. It is operation | movement explanatory drawing of a lamp socket.

(Embodiment 1)
In the following description, the vertical direction in FIG. 2 is defined as the vertical direction, and the surface provided with the guide slit 2 in the support portion 1 is described as the front surface.

  As shown in FIG. 2, the lamp socket 3 according to the present embodiment integrally includes a support portion 1 to which the lamp 4 (see FIG. 9) is attached and a fixing portion 5 formed at the lower portion of the outer peripheral surface of the support portion 1. Prepare for. The lamp socket 3 is attached to the instrument body 6 by a fixing portion 5. In the instrument body 6, the part to which the lamp socket 3 is attached is formed in a plate shape.

  A socket body 9 having a contact 8 electrically connected to the lamp pin 7 (see FIG. 9) is housed inside the support portion 1. The support portion 1 and the socket body 9 have the same configuration as the lamp socket 3 described as the background art. A pair of electric wire insertion holes 10 through which electric wires connected to the contact 8 are inserted are provided in the rear wall of the support portion 1. An electric wire introduced into the socket body 9 through each electric wire insertion hole 10 is coupled to a connecting terminal that is electrically connected to the contact 8.

  The socket body 9 has an operation lever 11 for rotating within the support portion 1. In a state where the lamp pin 7 is inserted into the guide slit 2, the socket body 9 is rotated using the operation lever 11, whereby the electrical connection state and the non-connection state of the lamp pin 7 can be switched.

  In addition, about the location which is the same structure as the structure demonstrated in background art, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  By the way, in this embodiment, as shown in FIG. 1, the fixing | fixed part 5 has a shape extended below from the lower part of the support part 1, expanding in the front-back direction and the left-right direction. A screw mounting base 12 having a certain thickness is integrally formed at one of the left and right end portions behind the lower surface of the fixing portion 5. The screw mount 12 is provided with a through hole 13 (see FIG. 3) that is a long hole in the left-right direction so as to penetrate the screw mount 12 in the vertical direction.

  Further, a hooking portion 14 is projected from the fixed portion 5. The hooking portion 14 integrally includes an insertion piece 14a that protrudes downward from the lower surface front edge of the fixing portion 5 and a hooking piece 14b that extends forward from the lower end of the insertion piece 14a along the lower surface of the fixing portion 5. Prepare. The cross section of the hook portion 14 is L-shaped. Further, the fixed portion 5 has a rotation restricting boss 15 that protrudes downward from the rear end portion of the lower surface.

  On the other hand, the instrument body 6 has a screw-fastening hole 16 and a rotation restricting long hole 17. A fixing screw 18 can be fastened to the screw hole 16. Examples of the fixing screw 18 and the screwing hole 16 include a configuration in which the fixing screw 18 is a tapping screw and the screwing hole 16 is a pilot hole corresponding to the tapping screw. Alternatively, the fixing screw 18 may be a bolt, and the screw fixing hole 16 may be fastened to the fixing screw 18 using a nut.

  The rotation restricting long hole 17 is a long hole that is long in the left-right direction. The width in the front-rear direction of the rotation restriction slot 17 is equal to the diameter of the rotation restriction boss 15, and the width in the left-right direction is larger than the diameter of the rotation restriction boss 15. Therefore, the rotation restricting boss 15 is movable in the left-right direction within the rotation restricting elongated hole 17.

  A hooking hole 19 is opened in front of the instrument body 6. The hook hole 19 is a rectangular through hole, and the width of the hook hole 19 in the left-right direction is larger than the width of the hook portion 14 in the left-right direction. Therefore, the hooking portion 14 can move in the left-right direction within the hooking hole 19.

  The positional relationship among the screwing holes 16, the rotation restricting long holes 17, and the hooking holes 19 that are opened in the instrument body 6 is such that the portions corresponding to the respective fixing portions 5 can be coupled simultaneously.

  Next, how to attach the lamp socket 3 of the present embodiment to the appliance main body 6 and its function will be described.

  First, the rotation restricting boss 15 is inserted into the rotation restricting long hole 17 with the insertion piece 14 a inserted into the hooking hole 19. As a result, the fixing portion 5 is positioned and fixed on the instrument body 6, and the upper surface of the hooking piece 14b is positioned so as to face the lower surface of the instrument body 6 (see FIG. 4). The hooking piece 14 b in this state cannot move upward due to the presence of the lower surface of the instrument body 6. By restricting the movement of the hooking portion 14, the fixing portion 5 can prevent the lamp socket 3 from being lifted against a load on the rear side of the lamp socket 3.

  A washer 20 and a cylindrical spacer 21 are used to fix the fixing portion 5 with the fixing screw 18. The outer diameter of the spacer 21 is equal to the width of the through long hole 13 in the front-rear direction, and the length of the spacer 21 is larger than the depth of the through long hole 13. First, the spacer 21 is inserted into the through long hole 13. Then, the fixing screw 18 passed through the washer 20 is passed through the spacer 21 from above and fastened to the screw fastening hole 16 of the instrument body 6. As a result, the lamp socket 3 is fixed to the instrument body 6.

  As shown in FIG. 5, since the spacer 21 larger than the depth of the through long hole 13 is used for fastening the fixing screw 18 and the screwing hole 16, the spacer 21 receives the tightening force of the fixing screw 18. And only the instrument body 6. Therefore, the fixing portion 5 does not receive a tightening force, and the lamp socket 3 is free to move. However, the movement in the rotation direction around the fixing screw 18 is restricted by the connection between the rotation restriction boss 15 and the rotation restriction long hole 17. Therefore, the fixed portion 5 can only move the through-hole 13 in the left-right direction.

  In the configuration of this embodiment, the spacer 21 can move leftward until it contacts the right end surface of the through hole 13 or the rotation restricting boss 15 contacts the left end surface of the rotation restricting hole 17 (FIG. 6A). )reference). The spacer 21 can be moved rightward until the spacer 21 contacts the left end surface of the through-hole 13 or the rotation restricting boss 15 contacts the right end surface of the rotation restricting elongated hole 17 (see FIG. 6C). 6B is not in contact with any end face and can move in both the left and right directions, the fixing portion 5 can be moved between FIG. 6A and FIG. 6C. In addition, the support portion 1 is also movable in the left-right direction within the movable range of the fixed portion 5.

  The configuration of the lamp socket 3 and the lighting fixture 7 described above is an example. For example, instead of the fixing screw 18, the washer 20, and the spacer 21 used for fastening, a screw with a spacer in which these are integrated is used. Also good. Moreover, the structure which provides the rotation control oblong hole 17 in the fixing | fixed part 5, and provides the rotation control boss | hub 15 in the instrument main body 6 may be sufficient.

(Embodiment 2)
In the first embodiment, the connection between the rotation restricting boss 15 on the lower surface of the fixing portion 5 and the rotation restricting elongated hole 17 of the instrument body 6 has a function as a means for restricting movement in the rotation direction around the fixing screw 18. Was.

  As shown in FIG. 7, the lamp socket 3 according to this embodiment is different from the rotation restriction boss 15 and the rotation restriction long hole 17 in that the instrument body 6 has a rotation restriction wall 22. Different from the lamp socket 3.

  The rotation restricting wall 22 protrudes from the upper surface of the instrument body 6. The rotation restricting wall 22 is positioned along the rear surface of the fixing portion 5 when being fixed to the instrument body 6. The rotation restricting wall 22 abuts the lower part of the rear surface of the fixed portion 5 to restrict the rotational movement of the lamp socket 3.

  As a method for realizing the rotation restricting wall 22, the corresponding portion of the instrument body 6 may be cut and raised. Moreover, you may add a rib to the applicable location of the instrument main body 6. FIG.

  Other configurations and functions are the same as those of the first embodiment.

(Embodiment 3)
In the first embodiment, the spacer 21 is separate from the instrument body 6, but in this embodiment, the spacer is formed integrally with the instrument body 6. In order to distinguish the spacer used in the present embodiment from the spacer 21 of the first embodiment, the spacer is referred to as a fixed spacer piece 23.

  In the present embodiment, the through long hole 13 is a rectangular long hole that is long in the left-right direction. The width in the front-rear direction of the through-hole 13 matches the length in the front-rear direction of the fixed spacer piece 23, and the width in the left-right direction of the through-hole 13 is larger than the length in the left-right direction of the fixed spacer piece 23.

  The fixed spacer piece 23 is a quadrangular prism protruding upward from the instrument body 6. A hole for fastening the fixing screw 18 is opened on the upper surface of the fixing spacer piece 23. The length of the fixed spacer piece 23 in the vertical direction is larger than the depth of the through long hole 13. Further, since the fixed spacer piece 23 is integrated with the instrument body 6, the fixed spacer piece 23 has a structure that does not move or rotate with respect to the instrument body 6.

  As shown in FIG. 8, the lamp socket 3 and the instrument body 6 are fixed by the through long hole 13 and the fixing spacer piece 23. First, the positions and directions of the through long holes 13 and the fixed spacer pieces 23 are aligned, and the fixed spacer pieces 23 are inserted into the through long holes 13. Thereby, the position of the lamp socket 3 is fixed on the fixture body 6, and the movement of the lamp socket 3 in the rotational direction and the front-rear direction is restricted.

  In this state, the lamp socket 3 is fixed to the fixture body 6 by passing the fastening screw 18 passed through the washer 20 through the fastening spacer piece 23 from above and fastening. Since the vertical length of the fixed spacer piece 23 is larger than the depth of the through long hole 13, only the fixed spacer piece 23 receives the tightening force of the fixing screw 18. Therefore, the fixing part 5 does not receive a tightening force, and the fixing part 5 can move in the left-right direction.

  As a result, the rotation restricting boss 15 and the rotation restricting elongated hole 17 that have restricted the movement in the rotation direction around the fixing portion 18 and the hooking portion 14 and the fixing hole 18 that have prevented the lamp socket 3 from being lifted. Is no longer necessary.

  Other configurations and functions are the same as those of the first embodiment.

DESCRIPTION OF SYMBOLS 1 Support part 2 Guide slit 4 Lamp 5 Fixing part 6 Instrument main body 7 Lamp pin 8 Contactor 9 Socket main body 13 Through long hole 14 Hook part 15 Rotation restriction boss 16 Screw hole 17 Rotation restriction long hole 18 Fixing screw 19 Hook Hole 21 Spacer 22 Rotation restriction wall 23 Fixed spacer piece 24 Base 26 Lighting fixture

Claims (6)

  A lamp socket device capable of attaching a lamp having a plurality of power supply lamp pins projecting in one direction from a single base to a lighting fixture, the socket body having a contact to which the lamp pins are electrically connected; , Having a guide slit for guiding the lamp pin in a direction intersecting the lamp pin, and supporting the socket body, and the support part is movable in the width direction of the guide slit with respect to the fixture body of the lighting fixture A fixing portion that is fixed to the guide slit, and a through hole that is long in the width direction of the guide slit and penetrates in the longitudinal direction of the guide slit is opened in the fixing portion, and a cylindrical spacer that is longer than the depth of the through hole is provided. Inserted into the through long hole, a fixing screw is passed through the spacer to fasten the fixing portion to a screw hole of the instrument body, and the fixing part is attached to the instrument body. Lamp socket apparatus characterized by being movably secured in a width direction of the guide slit.   The fixing portion is provided with a hooking portion that is inserted into a hooking hole opened in the instrument main body and has a tip portion that is in contact with a surface opposite to a surface on which the fixing portion of the instrument main body is fixed. The lamp socket device according to claim 1.   One of the rotation restricting boss for restricting the rotational movement of the fixing portion relative to the instrument main body and the rotation restricting elongated hole into which the boss is inserted is provided in the instrument main body, and the other is provided in the fixing portion. The lamp socket device according to claim 1 or 2.   The said fixing | fixed part has an abutting part contact | abutted to the rotation control wall protrudingly provided by the said instrument main body, The rotary movement with respect to the said instrument main body of the said fixing | fixed part is controlled. 2. Lamp socket device according to the description.   2. The lamp socket device according to claim 1, wherein the spacer has a quadrangular prism shape and is provided integrally with the fixture body, and the through-hole is opened in a rectangular shape corresponding to the outer shape of the spacer. . 6. A lighting fixture comprising the lamp body of any one of claims 1 to 5 in the fixture body.

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