JP2011258344A - Water-proof lamp socket and lighting instrument employing the water-proof lamp socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely engage a socket body with a fastening cylinder without dropping a lamp from a mounting part.SOLUTION: A water-proof lamp socket includes: a socket body 1 having a lamp receiving part 12 in which a lamp 200 is mounted, a water-proof packing receiving part 11 outside of the lamp receiving part, and insert holes 15 outside of the water-proof packing receiving part 11; a fastening cylinder 3 having lock means 30A which is inserted into the insert holes 15 of the socket body 1 and fixed to the socket body 1, and covering an outer circumferential surface of a terminal portion of the lamp 200; and a water-proof packing 2 which is ring-shaped so as to insert the lamp 200 therethrough, disposed between the fastening cylinder 3 and the socket body 1, and compressed with the lamp receiving part 12 of the socket body 1 and the fastening cylinder 3 when the fastening cylinder 3 is fixed to the socket body 1, so as to tightly adhere to an outer circumferential surface of the lamp 200. The fastening cylinder 3, without being rotated, is linearly moved towards the socket body 1 and fixed.

Description

  The present invention relates to a waterproof lamp socket in which a socket body and a fastening tube can be securely fitted without dropping the lamp from a mounting portion.

  A conventional waterproof lamp socket of this type has a threaded portion with a male threaded portion formed on the outer peripheral surface of the socket body cylinder, and a female threaded portion that is threadedly engaged with the male threaded portion of the socket body on the inner peripheral surface of the fastening cylinder. There is a waterproof packing between them, and the fastening cylinder is attached to the socket body by screwing both screw parts (for example, see Patent Document 1 and Patent Document 2).

JP 2001-52830 A (see page 3, left column, line 30 to right column, line 7; see FIG. 3) JP 11-354235 A (see page 2, right column, line 29 to right column, line 50, see FIG. 3)

  However, in the conventional waterproof lamp socket using the screw attachment method, when the socket body and the fastening tube are screwed together, the screwing can be stopped at a halfway position without being completely screwed. Due to the structure, depending on the installation location of the luminaire, there is a problem that it is difficult to determine whether it is completely screwed in, and the skill of the operator is required.

  In addition, if the socket body and the fastening cylinder are not completely screwed together, the waterproof packing will not adhere to the periphery of the lamp, and the compression force by the lamp receiving portion of the socket body and the fastening cylinder will be weakened. It led to a drop in performance.

  Further, the waterproof packing maintains waterproof performance by being compressed, and is made of an elastic material. Therefore, when the fastening tube is screwed, the elastic waterproof packing touches the lamp, and the lamp is rotated by applying a force in the direction of removing the lamp, and the lamp pin may be detached from the lamp pin mounting portion. Further, even when the lamp pin is removed from the lamp pin mounting portion in such an abnormal state, the fastening cylinder can be screwed into the socket body, so that there is a problem in that it is not noticed.

  The technical problem of the present invention is to enable the socket body and the fastening cylinder to be securely fitted without dropping the lamp from the mounting portion.

  A waterproof lamp socket according to the present invention includes a lamp receiving portion to which a lamp is mounted, a waterproof packing receiving portion outside the lamp receiving portion, a socket main body having an insertion hole outside the waterproof packing receiving portion, and a socket main body. It has a locking means that is inserted into the insertion hole of the lamp and is fixed to the socket body, and has a fastening cylinder that covers the outer peripheral surface of the lamp end, and a ring shape through which the lamp can be inserted. And a waterproof packing that is arranged between the main body and is compressed by the lamp receiving portion of the socket main body and the tightening cylinder when the fastening cylinder is fixed to the socket main body, and is in close contact with the outer peripheral surface of the lamp. .

  In the waterproof lamp socket of the present invention, the fastening cylinder and the waterproof packing are previously inserted into the lamp so that the waterproof packing is disposed between the fastening cylinder and the socket body, and in this state, the lamp is attached to the socket. It is attached to the main body, and the fastening means on the fastening cylinder side is inserted until it engages with the insertion hole on the socket body side, and the fastening cylinder is fixed to the socket body. As a result, the waterproof packing is compressed by the lamp receiving portion of the socket main body and the fastening tube and is brought into close contact with the outer peripheral surface of the lamp, thereby providing a waterproof function. In this way, the fastening cylinder does not rotate, but moves straight to the socket body side and is fixed, so when attaching the fastening cylinder to the socket body, the waterproof packing should rotate even if it touches the lamp. No, the lamp pin is not detached from the lamp pin mounting portion.

It is a perspective view which shows the lighting fixture using the waterproof lamp socket which concerns on Embodiment 1 of this invention. It is a perspective view which shows the assembly of the waterproof lamp socket which concerns on Embodiment 1 of this invention. It is an exploded view of the waterproof lamp socket which concerns on Embodiment 1 of this invention. 1 is an exploded perspective view of a waterproof lamp socket according to Embodiment 1 of the present invention. It is sectional drawing which shows the fitting part of the waterproof lamp socket which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the fitting part of the waterproof lamp socket which concerns on Embodiment 2 of this invention. It is a disassembled perspective view of the waterproof lamp socket which concerns on Embodiment 3 of this invention.

Embodiment 1 FIG.
1 is a perspective view showing a lighting fixture using a waterproof lamp socket according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing an assembly of the waterproof lamp socket, FIG. 3 is an exploded view thereof, FIG. 4 is an exploded perspective view thereof, and FIG. 5 is a sectional view showing the fitting portion.

  First, as illustrated in FIG. 1, a lighting fixture 1000 includes a fixture main body 100 and a waterproof lamp socket 300 that is disposed at both longitudinal ends of the fixture main body 100 and to which the lamp 200 is detachably attached.

  The waterproof lamp socket 300 includes a socket body 1, a waterproof packing 2, and a fastening cylinder 3.

  The socket body 1 is made of a synthetic resin, and includes a lamp receiving portion 12 for mounting the lamp 200, and a lamp pin mounting portion 13 that is housed in the lamp receiving portion 12 and on which the lamp pin of the lamp 200 is mounted (details are shown in the figure). A cylindrical waterproof packing receiving portion 11 formed outside the lamp receiving portion 12, and a plurality (two in this case) at equal intervals in the circumferential direction outside the waterproof packing receiving portion 11, that is, outside the cylindrical portion. It has the insertion hole 15 formed.

  The lamp receiving portion 12 has a lamp pin insertion groove 14 into which the lamp pin of the lamp 200 is inserted and guides the insertion of the lamp pin up to the lamp pin mounting portion 13.

  Here, the lamp pin mounting portion 13 employs a system in which the side surface of the lamp pin is sandwiched and contacted to supply power. However, the present invention is not limited to this contact method. For example, by rotating the lamp pin by passing the lamp pin through the lamp pin insertion groove and rotating the lamp pin, the lamp pin is brought into contact with the lamp pin mounting portion to supply power. It is also possible to adopt one.

  The waterproof packing 2 has a ring shape through which the lamp 200 can be inserted, and is disposed between the fastening cylinder 3 and the socket body 1. When the fastening cylinder 3 is fixed to the socket body 1, the lamp holder of the socket body 1 is received. When the inner peripheral side is in close contact with the outer peripheral surface of the lamp 200 by being compressed by the portion 12 and the fastening cylinder 3, a waterproof function is exhibited.

  The fastening tube 3 is made of an elastic thermoplastic resin and is formed in a tubular shape covering both ends of the lamp 200 that is open at both ends and connected to the socket body 1. Locking means 30A that is inserted into the insertion hole 15 of the socket body 1 and fixed therein is installed.

  A plurality of (two in this case) locking means 30 </ b> A are installed at equal intervals in the circumferential direction and extend in the axial direction, and outward L-shaped locking claws 32 formed at the tips of these legs 31. The engaging claw 32 is inserted through the insertion hole 15 on the socket body 1 side and engaged with the penetrating end side edge of the insertion hole 15, thereby the foot 31 and the insertion hole 15. , That is, the fixed state of the fastening cylinder 3 to the socket body 1 can be maintained.

  In the waterproof lamp socket of the present embodiment, the waterproof packing 2 and the fastening cylinder 3 are attached to the socket body 1 as follows. First, as shown in FIG. 4, the fastening cylinder 3 and the waterproof packing 2 are previously inserted into the lamp 200 so that the waterproof packing 2 is disposed between the fastening cylinder 3 and the socket body 1. The lamp 200 is attached to the socket body 1. Next, the leg 31 on the side of the fastening cylinder 3 is inserted into the insertion hole 15 of the socket body 1 while being bent toward the cylindrical center side (counter-engagement direction), and the locking claw 32 is inserted by the spring back as it is. Push until the penetrating end edge of the hole 15 is engaged. As a result, as shown in FIG. 5, the fastening cylinder 3 is fixed to the socket body 1, and the waterproof packing 2 is compressed by the lamp receiving portion 12 of the socket body 1 and the fastening cylinder 3 and is brought into close contact with the outer peripheral surface of the lamp 200. In this way, the waterproof function is expressed. In this way, the fastening cylinder 3 is fixed by moving straight to the socket body 1 side without rotating, so that when the fastening cylinder 3 is attached to the socket body 1, the waterproof packing 2 touches the lamp. This is not rotated, and the lamp pin is not detached from the lamp pin mounting portion 13.

  Further, the engaging portions between the tightening cylinder 3 and the socket body 1, that is, the legs 31 and the locking claws 32 of the tightening tube 3 and the insertion holes 15 of the socket body 1 are arranged outside the respective tube portions. Therefore, it is possible to determine at a glance whether or not the locking claw 32 of each leg 31 of the fastening cylinder 3 is securely engaged with the penetrating end side edge of each insertion hole 15 of the socket body 1. .

  Moreover, since the socket main body 1 and the fastening cylinder 3 do not have the screw threaded portion, the resin molding die cost can be reduced.

  Further, since it is not necessary to rotate the tightening tube 3 when the tightening tube 3 is attached to the socket body 1, even if the waterproof packing 2 is in close contact with the outer peripheral surface of the lamp 200, the direction in which it is removed (rotation direction) No force is applied, and the lamp pin does not come off from the lamp pin mounting portion 13. For this reason, friction reducing members such as washers that have been necessary in the past can be dispensed with, and as a result, the safety and reliability of lighting fixtures using this waterproof lamp socket can be increased, and costs can be reduced. Can do.

  Further, in the waterproof lamp socket according to the present embodiment, the center of the lamp pin is misaligned when the lamp pin is removed from the lamp pin mounting portion 13, so that the insertion hole 15 may be inserted into the socket body 1. And the position of the foot 31 shifts and cannot be fitted. For this reason, the malfunction by misalignment can be prevented beforehand.

  In addition, it can be attached with a single touch by simply inserting the foot 31 on the side of the fastening cylinder 3 into the insertion hole 15 on the socket body 1 side. It becomes.

  Further, since the foot 31 and the locking claw 32 are provided on the tightening cylinder 3 side, if the locking claw 32 is accidentally broken, only the tightening cylinder 3 needs to be replaced, so that maintenance is easy.

Embodiment 2. FIG.
FIG. 6 is a cross-sectional view showing a fitting portion of a waterproof lamp socket according to Embodiment 2 of the present invention. In the figure, the same functional parts as those of Embodiment 1 described above are denoted by the same reference numerals and described. The description will be centered on the differences.

  In the waterproof lamp socket according to the present embodiment, as shown in FIG. 6, the shape of the locking claw 33 of the locking means 30 </ b> B provided in the tightening cylinder 3 corresponding to the insertion hole 15 of the socket body 1 is described above. This is different from the first embodiment.

  That is, the locking means 30 </ b> B includes a plurality of legs 31 that are installed at equal intervals in the circumferential direction and extend in the axial direction so as to correspond to the insertion holes 15 on the socket body 1 side, and these legs 31. Each of which has a conical locking claw 33 formed at the tip thereof, and the diameter of the conical bottom surface of the conical locking claw 33 is larger than the inner diameter of the insertion hole 15 on the socket body 1 side. It is configured. Other configurations are the same as those of the first embodiment described above, and all the basic functions of the first embodiment are provided.

  In the waterproof lamp socket according to the present embodiment, in addition to the effects of the first embodiment described above, the feet to the insertion hole 15 on the socket body 1 side are adjusted by the aligning action of the tip conical portion of the locking claw 33. When 31 is inserted, the locking claw 33 functions as a guide for the foot 31. Further, after insertion, the conical bottom surface portion of the locking claw 33 configured to have a diameter larger than the inner diameter of the insertion hole 15 engages with the penetrating end side edge of the insertion hole 15. The fastening tube 3 can be firmly fixed, and as a result, the safety and reliability of the lighting fixture using the waterproof lamp socket can be improved.

Embodiment 3 FIG.
FIG. 7 is an exploded perspective view of a waterproof lamp socket according to Embodiment 3 of the present invention. In the figure, the same functional parts as those of Embodiment 1 described above are denoted by the same reference numerals and description thereof is omitted. The difference will be mainly described. In the description, reference is made to FIG.

  As shown in FIG. 7, the waterproof lamp socket of the present embodiment is provided with a locking means 30A on the socket body 1a side and an insertion hole 15a on the tightening cylinder 3a side. The point that the installation position relationship between the stopping means 30A and the insertion hole 15a is opposite to that in each of the above-described embodiments is different from that in each of the above-described embodiments.

  More specifically, the socket body 1a is made of an elastic thermoplastic resin, and the lamp receiving portion 12 for mounting the lamp 200 and the lamp pin of the lamp 200 are accommodated in the lamp receiving portion 12. A lamp pin mounting portion 13 (not shown in detail) to be mounted, a cylindrical waterproof packing receiving portion 11 formed outside the lamp receiving portion 12, and an outer side of the waterproof packing receiving portion 11, that is, outside the cylindrical portion. Locking means 30A. A plurality of (two in this case) locking means 30A are installed at equal intervals in the circumferential direction and extend in the axial direction, and outwardly L-shaped locking claws 32a formed at the tips of these legs 31a, respectively. It is comprised by.

  The fastening cylinder 3 is made of a synthetic resin, is formed in a cylindrical shape that covers both ends of the lamp 200 that is open at both ends and is connected to the socket body 1, and is arranged at regular intervals in the circumferential direction outside the cylinder part. A plurality (two in this case) of insertion holes 15a into which the legs 31a of the socket body 1 are inserted are formed. Other configurations are the same as those of the first embodiment.

  In the waterproof lamp socket of the present embodiment, the waterproof packing 2 and the fastening cylinder 3a are attached to the socket body 1a as follows. First, as shown in FIG. 7, the fastening cylinder 3a and the waterproof packing 2 are previously inserted into the lamp 200 so that the waterproof packing 2 is disposed between the fastening cylinder 3a and the socket body 1a. The lamp 200 is attached to the socket body 1a.

  Next, the legs 31a on the socket body 1a side are bent toward the cylindrical center side (counter-engagement direction), and the insertion holes 15a on the tightening cylinder 3a side are fitted into the legs 31a in this state, and then locked as they are The clamping cylinder 3a is pushed in until the claw 32a is engaged with the penetrating end side edge of the insertion hole 15a by the spring back. As a result, the fastening cylinder 3a is fixed to the socket body 1a, and the waterproof packing 2 is compressed by the lamp receiving portion 12 of the socket body 1a and the fastening cylinder 3a so as to be in close contact with the outer peripheral surface of the lamp 200. Is expressed. In this way, the fastening cylinder 3a is fixed by moving linearly toward the socket body 1a without rotating, so that when the fastening cylinder 3a is attached to the socket body 1a, the waterproof packing 2 touches the lamp. This is not rotated, and the lamp pin is not detached from the lamp pin mounting portion 13.

  In addition, the engaging portion between the fastening cylinder 3a and the socket body 1a, that is, each insertion hole 15a of the fastening cylinder 3a, each foot 31a of the socket body 1a, and the locking claw 32a are arranged on the outside of each cylinder portion. Therefore, it is possible to determine at a glance whether or not the penetrating end side edge of each insertion hole 15a of the fastening cylinder 3a is securely engaged with the locking claw 32a of each leg 31a of the socket body 1a. .

  Moreover, since the socket main body 1a and the fastening cylinder 3a do not have a screw threaded portion, it is possible to reduce resin molding die costs.

  Further, since it is not necessary to rotate the tightening tube 3a when attaching the tightening tube 3a to the socket main body 1a, even if the waterproof packing 2 is in close contact with the outer peripheral surface of the lamp 200, the direction in which it is removed (rotation direction) No force is applied, and the lamp pin does not come off from the lamp pin mounting portion 13. For this reason, friction reducing members such as washers that have been necessary in the past can be dispensed with, and as a result, the safety and reliability of lighting fixtures using this waterproof lamp socket can be increased, and costs can be reduced. Can do.

  Further, in the waterproof lamp socket of the present embodiment, when the lamp pin is detached from the lamp pin mounting portion 13, misalignment occurs, and even if an attempt is made to fit the fastening cylinder 3 a into the socket body 1 a, the insertion hole 15 a And the position of the foot 31a shifts and cannot be fitted. For this reason, the malfunction by misalignment can be prevented beforehand.

  In addition, since the insertion hole 15a on the side of the fastening cylinder 3a is fitted into the foot 31a on the side of the socket body 1a and can be attached with a single touch, the working time can be shortened compared to the conventional screw attachment method. Cost reduction.

Embodiment 4 FIG.
In the above-described third embodiment (FIG. 7), the locking claw 32a of each foot 31a on the side of the socket main body 1a has an outward L-shape, but this is the case with the waterproof lamp socket of the fourth embodiment. A conical locking claw as described in the second embodiment (FIG. 6) may be used. That is, a conical locking claw 33a as shown in FIG. 6 is formed at the tip of each foot 31a on the socket body 1a side shown in FIG. 7, and the diameter of the conical bottom surface of each conical engaging claw 33a is set. The diameter is larger than the inner diameter of the insertion hole 15a on the tightening cylinder 3a side.

  Thereby, in the waterproof lamp socket according to the present embodiment, in addition to the effects of the third embodiment described above, the insertion hole on the side of the tightening cylinder 3a is obtained by the aligning action of the tip conical portion of the locking claw 33a. When the 15a is fitted into the foot 31a, the locking claw 33a functions as a guide for the fastening cylinder 3a. Further, after insertion, the conical bottom surface portion of the locking claw 33a having a diameter larger than the inner diameter of the insertion hole 15a engages with the penetrating end side edge of the insertion hole 15a. The fastening tube 3a can be firmly fixed, and as a result, the safety and reliability of the lighting fixture using this waterproof lamp socket can be improved.

  1, 1a Socket body, 2 Waterproof packing, 3, 3a Clamping cylinder, 11 Waterproof packing receiving part, 12 Lamp receiving part, 13 Lamp pin mounting part, 14 Lamp pin insertion groove, 15, 15a Insertion hole, 30A, 30B Locking Means 31, 31a foot, 32, 32a L-shaped locking claw, 33, 33a conical locking claw, 100 fixture body, 200 lamp, 300 waterproof lamp socket, 1000 lighting fixture.

Claims (7)

A lamp receiving portion for mounting a lamp, a waterproof packing receiving portion on the outside of the lamp receiving portion, and a socket body having an insertion hole on the outside of the waterproof packing receiving portion;
A fastening cylinder that has a locking means that is inserted into the insertion hole of the socket body and is fixed to the socket body, and covers an outer peripheral surface of the end of the lamp;
The lamp has a ring shape through which the lamp can be inserted, and is disposed between the clamping cylinder and the socket body. When the clamping cylinder is fixed to the socket body, the lamp receiving portion of the socket body and the clamping cylinder are fixed. A waterproof packing that is compressed with a tube and adheres to the outer peripheral surface of the lamp;
A waterproof lamp socket, comprising: A plurality of the insertion holes are formed at equal intervals in the circumferential direction outside the cylindrical portion of the socket body,
The locking means includes a plurality of legs extending in the axial direction and arranged on the outer side of the cylinder portion of the fastening cylinder in correspondence with the insertion holes, and L-shapes formed respectively at the tips of the legs. The waterproof lamp socket according to claim 1, wherein the waterproof lamp socket is constituted by a locking claw of the mold. A plurality of the insertion holes are formed at equal intervals in the circumferential direction outside the cylindrical portion of the socket body,
The locking means includes a plurality of legs extending in the axial direction and arranged in the circumferential direction at equal intervals on the outer side of the cylindrical portion of the fastening cylinder corresponding to the insertion holes, and conical shapes formed at the tips of these legs, respectively. The diameter of the conical bottom surface of the conical locking claw is configured to be larger than the inner diameter of the insertion hole on the socket body side. Item 1. A waterproof lamp socket according to item 1. A lamp receiving portion for mounting the lamp, a waterproof packing receiving portion on the outside of the lamp receiving portion, and a socket body having a locking means on the outside of the waterproof packing receiving portion;
A fastening cylinder that has an insertion hole fixed to the socket body by being inserted into the locking means of the socket body, and covers an outer peripheral surface of the end of the lamp;
The lamp has a ring shape through which the lamp can be inserted, and is disposed between the clamping cylinder and the socket body. When the clamping cylinder is fixed to the socket body, the lamp receiving portion of the socket body and the clamping cylinder are fixed. A waterproof packing that is compressed with a tube and is in close contact with the peripheral surface of the lamp;
A waterproof lamp socket, comprising: The locking means includes a plurality of legs extending in the axial direction and arranged on the outer side of the cylindrical portion of the socket body, and L-shaped locking claws formed at the tips of the legs. ,
5. The waterproof lamp socket according to claim 4, wherein a plurality of the insertion holes are formed at equal intervals in the circumferential direction on the outer side of the cylinder portion of the tightening cylinder so as to correspond to the locking means. The locking means includes a plurality of legs that are installed on the outer side of the cylindrical portion of the socket body at equal intervals in the circumferential direction and extend in the axial direction, and conical locking claws formed at the tips of the legs,
A plurality of the insertion holes are formed at equal intervals in the circumferential direction on the outer side of the cylinder portion of the tightening cylinder, corresponding to the locking means,
The diameter of the conical bottom surface portion of the conical locking claw of the locking means is configured to be larger than the inner diameter of the insertion hole on the fastening cylinder side. Waterproof lampholder as described.   The lighting fixture using the waterproof lamp socket in any one of Claims 1 thru | or 6.

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