JPH09320325A - Screw socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the mounting and dismounting of a socket, by providing a projection, for engaging with an apparatus holder, on the outer side of a screw socket, to arrange the projection in the direction same as that of the outer side surface of the long side of a hook sealing. SOLUTION: A socket part 6 is integrally connected to a hook sealing part 4a to be hung, and a projection 7, for engaging with an apparatus holder, is provided on an outer side to be arranged on a position in a direction same as that of the outer side surface of the long side 4b of the hook sealing part 4a. The hook sealing part 4a is formed so that the parting line L of a die can pass the nearly center of a side surface, wherein the short sides 4c of the hook sealing part 4a is adopted as edge parts, to be parallel to the side surfaces, wherein long side 4b are adopted as side sides, and so that the die can be slid in the respective directions of arrows A-D. When the hook sealing part is gripped by a hand to be rotated, the hindering of the projection 7 to the position of fingers can be eliminated, and the structure of the die can be simplified to facilitate the manufacture of the die.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw-in socket used for a lighting fixture which is attached by utilizing a hook ceiling.

[0002]

2. Description of the Related Art A first conventional example is shown in FIGS.
That is, in this luminaire, an adapter 102 having a hook sealing cap is hooked on a hook sealing body 101 of the ceiling 100. This adapter 102 has a collar 103 and a lamp socket receiving portion 104, and a flange 105 and a globe 106 are locked to the collar 103. Flange 105 and glove 1 on brim 103
The adapter 102 is hooked on the hooking sealing body 101 with the 06 placed. Reference numeral 107 is a lamp, and 108 is a hooking claw.

FIGS. 9 and 10 show a second conventional example.
That is, in this luminaire, a threaded portion 109 is provided on the outer periphery of the lamp socket receiving portion 104 of the adapter 102, and the adapter 102 is mounted on the ceiling 100 of the ceiling 100.
01, the holder nut 110 is screwed into the screw portion 109, and the flange 105 and the globe 106 are locked to the holder nut 110. After the adapter 102 is attached to the hook sealing body 101, the flange 105 and the globe 106 are set, and the holder nut 110 is tightened and fixed to the threaded portion 109.

A third conventional example is shown in FIGS. 11 and 12. That is, in this luminaire, an inverted L-shaped locking groove 111 is formed on the outer periphery of the adapter 102 that is hooked on the hooking sealing body, and a female connector 112 is provided at the tip. After hooking the hooking claw 108 of the adapter 102 on the hooking sealing body 101, the holder 113 is moved to the adapter 10
2, and the holder 113 is inserted and rotated so that the locking claw 114 engages with the locking groove 111. The holder 113 is
It has an inner cover 120 that supports the instrument body 127, an outer cover 123 that slidably fits the inner cover 120, and a spring 124 that biases the inner cover 120 upward.

When the holder 113 is attached to the adapter 102, the tool body 127 is set on the inner cover 120, and the holder 113 is pushed up to the adapter 102 and rotated to lock the locking claw 114 into the locking groove 111. , Spring 1
24, the fixture body 127 is attached to the ceiling 100 and the holder 113.
Hold between and. Also, the male connector 1 of the cord 128 connected to the lighting circuit (not shown) of the instrument body 127
26 to the connector 112. 133 is the ceiling 100
It is a cushioning material such as urethane for increasing the adhesion with.

[0006]

In the first conventional example, since the height of the hooking sealing body 101 is different depending on the type such as the square type, the round type and the embedded type, several types of flanges having different heights are packed together. Or the user can hook the ceiling body 1
I had to replace 01.
Further, without the flange 100, it can be attached to any hook ceiling, but there is a problem in that the designability cannot be taken into consideration at all and the appearance is deteriorated.

The second conventional example is a hook sealing body 1.
Since 01 is hidden by the flange 105, it is a device with a good design, and since the tightening depth of the screw portion 109 of the holder 110 can be adjusted, it can be used even if the height of the hooking sealing body 101 is different. However, in such a device, when the holder 110 is transiently tightened, the flange 105
Since the end surface of the hook extends over the ceiling 100, a large force is applied to the blade of the hook sealing body 101. In JIS standard (JIS C8310), the force applied to the hook sealing blade is generally specified to be 5 kgf or less, and if excessive force is applied, the blade will deform, resulting in poor conduction or poor contact,
If the equipment falls, it may lead to an accident.

In the third conventional example, the inner cover 120 of the holder 113 is moved up and down by a spring 124 so that the height difference of the hook sealing body 102 can be absorbed. However, since the adapter 102 has a cylindrical shape and the hooking claw 108 is provided on the brim, it is difficult to grip and rotate the adapter 102 by hand, and therefore the attachment / detachment operation to / from the hooking sealing body 101 is not easy, and the mold structure of the adapter is also provided. Had the drawback of being complicated.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a screwed socket in which the socket can be easily attached and detached and the mold can be easily manufactured.

[0010]

According to a first aspect of the present invention, there is provided a screw-in socket, which has a substantially rectangular parallelepiped shape in a horizontal posture and has a hooking claw on an upper surface for hooking a hooking sealing body installed on a ceiling or the like, and A socket portion having an electric power feeding portion connected to the hooking claw and a female screw portion on the inside and a projection for engaging a device holder on the outside, and the projection is directed in the same direction as the outer side surface of the long side of the hooking sealing section. It is arranged in a position.

According to the screw-in socket of the first aspect, since the hook sealing portion has a substantially rectangular parallelepiped shape, it can be easily grasped and rotated by a hand, and the middle sealing finger and the ring finger hold the socket portion. Since it hits the surface on the short side of the, the projection does not interfere with the position of the finger. Further, it becomes possible to simplify the structure of the mold and facilitate the manufacture of the mold.

According to a second aspect of the present invention, in the first aspect, the female screw portion is partially formed on the back side of the protrusion. According to the screw-in socket of the second aspect, in addition to the effect of the first aspect, since the protrusion has a wall thickness due to the female screw portion on the back side of the protrusion, it is easy to secure the strength of the protrusion. In the screwed socket according to claim 3, the parting line of the mold according to claim 2,
The hook sealing portion is formed so as to pass through substantially the center of the side surface having the short side as an edge and to be parallel to the side surface having the long side as a side edge.

According to the screwed socket of the third aspect, in addition to the effect of the first aspect, the mold structure can be further simplified, and the mold manufacturing period and the mold manufacturing cost can be shortened. Further, since there is no parting line on the protrusion, there is no possibility of occurrence of burrs or a step due to displacement of the parting surface, and the performance relating to engagement of the protrusion can be stabilized. In addition, since the depth of the mold becomes shallower, the draft can be saved without increasing the draft, and the design can be taken into consideration, and the product can be easily extracted from the mold after molding.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. That is, this screw-in socket has the hook sealing portion 4 a and the socket portion 6. The hook ceiling part 4a is a substantially rectangular parallelepiped in a horizontal posture, and has a hook claw 5 hooked on the hook ceiling body 4 installed on the ceiling 3 or the like on the upper surface. In the embodiment, the pair of hooking claws 5 are mounted by the mounting screws 38. Reference numeral 9 denotes a lock release button for retracting the lock claw 10. When the lock release button 9 is pressed to retract the lock claw 10, the hook claw 5 is hooked on the hook ceiling body 4 and the lock release button 9 is released to release the lock claw 10. 1
0 is projected and locked in a recess (not shown) of the hook sealing body 4 to restrict rotation of the hook sealing body 4, thereby preventing accidental disengagement of the hook sealing portion 4a. Reference numeral 11 denotes a flange for temporarily holding the flange, and the temporary holding claw 13 of the flange 12 can be hooked as shown in FIG. Reference numeral 1a (FIG. 3) is a hook sealing alignment mark for facilitating hooking of the hook 5 on the hook sealing body 4.

The socket portion 6 is integrally connected to the hook sealing portion 4a and hangs down to have a power feeding portion and a female screw portion 6a connected to the hook claws 5 on the inner side, and a projection 7 for engaging the instrument holder on the outer side. The projection 7 is arranged at a position facing the same direction as the outer surface of the long side 4b of the hooking sealing portion 4a. In the embodiment, a pair of protrusions 7 is formed on the facing portion of the socket portion 6. The female screw portion 6a is for screwing and mounting the base of an incandescent lamp or a bulb-type fluorescent lamp, and is partially formed on the back side of the protrusion 7. The power feeding unit 30 is composed of a center contact piece 14 and a side contact piece 15, and the respective base ends thereof are connected to the hooking claws 5 by caulking 31.

This screwed socket is integrally manufactured by injection molding. In this case, it is necessary to configure the mold so that the mold slides in the directions of arrows A to D in FIG. Then, in this embodiment, the parting line L of the mold passes through substantially the center of the side surface having the short side 4c of the hook sealing portion 4a as the edge portion and is parallel to the side surface having the long side 4b as the side edge. Is shaped like.

The holder 2 has a cylindrical shape which is externally inserted into the adapter 1, and has an inner cylinder 17 provided with an inverted L-shaped engagement groove 8 which engages with the projection 7, and is connected to the inner cylinder 17. A movable member 19 for supporting the instrument main body, which is movable in the axial direction, between the inner cylinder 17 and the outer cylinder 18.
It has a spring 20 for urging the hook 9 toward the hooking sealing body 4 side. Move the flange 12 and the globe 41 to the moving member 19
When the inner cylinder 17 of the holder 2 is externally inserted and rotated in the socket portion 6 while being supported by the instrument support portion 24, the protrusion 7 moves and locks in the locking groove 8. At this time, the moving member 19 presses and fixes the flange 12 on the ceiling 3 and the globe 41 by the action of the spring 20.

Reference numeral 16 is a lamp mounted in the socket portion 6. In this screw-in socket, the flange 12 is temporarily held by the hooking sealing portion 4a, and then the globe 41 and the holder 2 are held in both hands, and the holder 2 is attached. When the holder 2 is attached, the flange 12 is pressed against the ceiling by the spring 20, so that the flange 12 and the globe 41 are fixed.

According to this embodiment, since the hook sealing portion 4a has a substantially rectangular parallelepiped shape, it can be easily gripped and rotated by the hand, and as shown in FIG. The thumb 32a and the index finger 32b hold the hooking sealing portion 4a so as to face each other, and the middle finger 32c and the ring finger 32d hold the socket portion 6,
The protrusion 7 does not interfere with the positions of the fingers 32c and 32d because it hits the surface of the hook sealing portion 4a on the short side 4c side. Further, it becomes possible to simplify the structure of the mold and facilitate the manufacture of the mold.

Further, since the female screw portion 6a is partially formed on the back side of the protrusion 7, the female screw portion 6 at the position on the back side of the protrusion 7 is formed.
Since the protrusion 7 becomes thick due to a, it becomes easy to secure the strength of the protrusion 7. Furthermore, the parting line L of the mold is
The hook sealing portion 4a is formed so as to pass through substantially the center of the side surface having the short side as the edge portion and to be parallel to the side surface having the long side 4b as the side edge. It is possible to shorten the die production period and die production costs.
Further, since the parting line L is not formed on the protrusion 7, there is no risk of burrs or the like or a step due to the deviation of the parting surface, and the performance relating to the engagement of the protrusion 7 can be stabilized. Further, since the depth of the mold is reduced to about half of the length of the short side 4c, the draft can be saved without increasing the draft, and the product can be easily extracted from the mold after molding. .

[0021]

According to the screw-in socket of the first aspect of the present invention, since the hook sealing portion has a substantially rectangular parallelepiped shape, it can be easily grasped and rotated by the hand, and the middle finger and the ring finger hold the socket portion. Since it hits the surface on the short side of the sealing part, the projection does not interfere with the position of the finger. Further, it becomes possible to simplify the structure of the mold and facilitate the manufacture of the mold.

According to the screw-in socket of the second aspect, in addition to the effect of the first aspect, the protrusion is thick due to the female screw portion on the back side of the protrusion, so that the strength of the protrusion can be easily secured. According to the screwed socket of the third aspect, in addition to the effect of the first aspect, the die structure can be further simplified, and the die production period and the die production cost can be shortened.
Further, since there is no parting line on the protrusion, there is no possibility that burrs or the like or a step due to the displacement of the parting surface will occur, and the performance relating to the engagement of the protrusion can be stabilized. In addition, since the depth of the mold becomes shallower, the draft can be saved without increasing the draft, and the design can be taken into consideration, and the product can be easily extracted from the mold after molding.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a front view of a ceiling-mounted state.

FIG. 3 is a half cross-sectional side view of the hook sealing portion.

FIG. 4 is a partial sectional view of a socket portion.

FIG. 5 is a bottom view of the screwed socket.

FIG. 6 is a perspective view of a gripped state of the screwed socket.

FIG. 7 is a cross-sectional view of a first conventional example.

FIG. 8 is an exploded perspective view thereof.

FIG. 9 is an exploded perspective view of a second conventional example.

FIG. 10 is a sectional view of the ceiling-mounted state.

FIG. 11 is a partial cross-sectional view of a third conventional example.

FIG. 12 is a perspective view before connecting the holder to the adapter.

[Explanation of symbols]

 2 Holder 3 Ceiling 4 Hooking sealing body 4a Hooking sealing part 4b Long side 4c Short side 5 Hooking claw 6 Socket part 6a Female screw part 7 Protrusion 8 Engagement groove 30 Power feeding part L Parting line

Front page continued (72) Inventor Ken Imai 1-55 Yoshida Shimojima, Higashiosaka City, Osaka Prefecture Asahi National Lighting Co., Ltd.

Claims (3)

[Claims] 1. A hook ceiling part having a substantially rectangular parallelepiped shape in a horizontal posture and hooked on a hook ceiling body installed on a ceiling or the like, and a power feeding part and a female screw part connected to the hook claw are inside. And a socket part having a projection for engaging a device holder on the outside, and the projection is arranged at a position facing in the same direction as the outer surface of the long side of the hooking sealing part. 2. The screwed socket according to claim 1, wherein the female screw portion is partially formed on the back side of the protrusion. 3. The mold parting line is formed so as to pass through substantially the center of the side surface having the short side of the hook sealing portion as an edge and to be parallel to the side surface having the long side as a side edge. Item 2. The screwed socket according to item 2.