JPH11345663A - Rotary socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary socket capable of easily confirming a lamp detaching position every 90 degree by operating feeling and a click sound by a click stopper mechanism utilizing a rotating operation of a rotor. SOLUTION: This rotary socket is equipped with a socket body 1 and a rotor 2, and a recessed engagement part 6 in a notch shape is provided at three remaining spots out of four spots including one for a lamp pin inserting groove 11 at intervals of 90 degree on the wall part 19 of the rotor 2. A projecting engagement part 13 to be engaged with the recessed engagement part 6 and the lamp pin inserting groove 11 by a rotation of the rotor 2 is provided in the socket body 1. As for a torque to release the engagement condition of the recessed engagement part 6 with the projecting engagement part, the torque at a position where the lamp pin is inserted or removed is set for not less than the torque at a lamp mounting position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary socket applied to, for example, lighting equipment for fluorescent lamps.

[0002]

2. Description of the Related Art FIG. 19 shows a conventional example. That is, a plurality of engaging recesses 103 including a lamp pin insertion groove 102 are provided at regular angular intervals in a wall portion 101 of a rotor 100, and a socket body is provided with an engaging convex portion that fits into the engaging recess of the rotor. Is known (for example, JP-B-63-29392).

[0003]

However, the rotor 100
The engaging recess 103 has no elastic deformation function, and the lamp attaching / detaching torque required for rotating the rotor 100 is not constant depending on the locking position. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a rotary socket in which a lamp attachment / detachment position can be easily checked at every 90 degrees by a click feeling by an operation feeling and a click sound using a rotation operation of a rotor. .

[0004]

According to a first aspect of the present invention, there is provided a rotary socket having an opening on a front surface, a conductive contact for abutting a lamp pin of a lamp inside the opening, and the lamp pin being provided in the opening. A socket body formed with a lamp pin insertion groove to be inserted inside communicating with the opening from the side surface;
A lamp pin insertion groove which is rotatably provided to cover the opening of the socket main body, has a substantially cylindrical wall portion over substantially the entire circumferential side surface, and is aligned with the lamp pin insertion groove when the lamp is not mounted. A rotor continuously formed from the wall portion to the front surface at least up to a center portion beyond the rotation center of the rotor, and the lamp pin and the rotor are substantially aligned with the lamp pin inserted into the lamp pin insertion groove. In a rotary socket for rotating the lamp pin by 90 degrees to bring the lamp pin into contact with the conductive contact, the rotor has three cutout-shaped engaging portions at four locations including the lamp pin insertion groove at substantially 90-degree intervals. A mating recess is provided, and the socket main body is provided with an engaging protruding portion which fits into the engaging recess and the lamp pin insertion groove by rotation of the rotor; The detachment torque from the engagement between the concave portion and the engagement protrusion is such that the torque at the position where the lamp pin is inserted or detached is equal to or greater than the torque at the lamp mounting position. is there.

According to the rotary socket of the first aspect,
By rotating the rotor so that the lamp pin insertion groove is aligned with the lamp pin insertion groove of the socket body, the lamp pin can be taken in and out of the lamp pin insertion groove of the rotor. After moving the lamp pin to the rotation mounting position in the lamp pin insertion groove, turning the lamp also rotates the rotor integrally. At this time, since the two lamp pins protrude into the socket main body from the lamp pin insertion groove of the rotor, they come into contact with the contact surface of the conductive contact and elastically deform the same, and at the same time, the engagement convex portion is moved to the inner wall of the rotor. At a position rotated by approximately 90 degrees while being elastically pressed, the engagement protrusion locks while pushing the engagement recess of the rotor. When the engagement projections fit into the engagement recesses, a click sound is generated when the engagement projections and the engagement recesses of the rotor return to their original positions from the elastically deformed state, and the lamp pin is brought into a conductive state. When the lamp is further rotated in either direction from this engaged state, the releasing torque required to rotate the lamp is determined by the torque at which the lamp pin is released from contact with the conductive contact from the engaged state between the rotor and the socket body. Since the torque is added to the detachment torque of the lamp pin, the torque is larger than the mounting torque of the lamp pin. Therefore, the lamp can be easily mounted, and the stable conduction state can be easily confirmed by the operation feeling and the click sound.

That is, by changing the shape of the engaging concave portion of the rotor from the conventional longitudinal groove, the thickness of the cylindrical wall portion can be reduced, and the elasticity is equivalent to that of the engaging convex portion of the socket body. Since the deformation can be made possible, the amount of deflection when the engagement concave portion and the engagement convex portion are fitted can be increased, so that a clear click feeling and click sound can be produced. Further, by providing the mounting / removing position of the lamp at every 90 degrees, it becomes easier to visually confirm the locking position than at every 30 or 45 degrees as in the related art.

[0007] Further, in the lamp mounting / removing operation, the detachment torque for rotating the lamp from the lamp mounted state is the torque required for rotating the engaging convex portion of the socket body and the engaging concave portion of the rotor, and the conductive contact with the lamp pin. By utilizing the detachment torque of the child from the engaging portion, the rotation torque at the lamp mounting position can be made higher than the rotational torque, so that the lamp can be easily mounted and a stable conduction state can be obtained.

According to a second aspect of the present invention, in the rotary socket according to the first aspect, the width of the engaging recess is formed to be substantially equal to the width of the lamp pin insertion groove. According to the rotary socket of the second aspect, in addition to the same effects as those of the first aspect, the torque required for rotating from the conductive contact is excluded from the rotational torque required for the rotating operation of the rotor. The torque can be made substantially the same even when the torque is rotated from any engagement state at every 90 degrees.

According to a third aspect of the present invention, in the rotary socket according to the first aspect, the width of the engagement recess is formed to be smaller than the width of the lamp pin insertion groove, and the engagement projection is adapted to the width of the engagement recess. The engaging concave portion facing the lamp pin insertion groove with respect to the rotational center of the rotor is formed at two positions symmetrical with respect to the rotational center of the rotor. It is formed so as to be approximately twice as large as the engaging recess.

According to the rotary socket of the third aspect,
In addition to the same effects as those of the first aspect, when the lamp pin insertion groove cannot be used as the engagement concave portion, the torque required for the rotating operation of the rotor can be substantially changed from any engagement state at approximately 90 degrees. Can be constant. According to a fourth aspect of the present invention, in the rotary socket according to the first aspect, the width of the engagement recess is formed to be smaller than the width of the lamp pin insertion groove, and the engagement protrusion is adapted to the width of the engagement recess. The engaging recesses formed at three symmetrical positions with respect to the rotation center of the rotor and at one of the symmetrical positions therebetween and facing the lamp pin insertion groove with respect to the rotation center of the rotor are engaged with the engagement protrusions. It is formed so that the length is substantially twice as long as the other engaging recesses.

According to the rotary socket of the fourth aspect,
In addition to the same effects as those of the first aspect, when the lamp pin insertion groove cannot be used as the engagement recess, the amount of change in the rotational torque at the lamp attaching / detaching position can be increased, so that a clearer operational feeling can be obtained, and the position can be confirmed. It will be easier.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this rotary socket has a socket body 1 and a rotor 2. The socket body 1 has an opening 3 on the front surface, a conductive contact 4 for contacting the lamp pin P of the lamp inside the opening 3, and a lamp pin insertion groove 5 for inserting the lamp pin P inside the opening 3 from the side. It is formed so as to communicate with the opening 3. The socket main body 1 is provided with an engagement projection 13 that fits into the engagement recess 6 of the rotor 2.

In the embodiment, the socket body 1 is formed of a thermoplastic synthetic resin, and comprises a fixture main body attaching portion 7 and a bottomed cylindrical portion 8 attached to the appliance main body attaching portion 7. Is formed as an opening 3 and a lamp insertion groove 5 is formed in a cylindrical portion 8. Split at the bottom center of the cylindrical part 8 23
A connecting cylindrical portion 9 is provided, and an outwardly facing brim-shaped claw portion 10 is formed on the outer peripheral edge of the distal end thereof. As shown in FIG. 3, an intermediate portion of the conductive contact 4 is brought into contact with a peripheral surface in a direction orthogonal to a direction connecting the lamp pin insertion groove 5 and the connecting cylinder 9 with the slit 23 of the connecting cylinder 9 interposed therebetween. A positioning portion 1 such as a rib-like projection provided with both ends of the conductive contact 4 at the bottom of the cylindrical portion 8.
Positioning is performed by 2. Also, the inner peripheral surface of the rotor 2 is slidably contacted at a position outside the conductive contact 4 in the radial direction centered on the cylindrical portion 9 at a predetermined distance and opposite to the lamp pin insertion groove 5 and the cylindrical portion 9. For example, arcuate plate-shaped protrusions 14a to 14c serving as ribs are provided.
The engaging projections 13 are respectively provided on the outer surfaces serving as sliding surfaces of
Is provided. That is, the engagement protrusions 13 are formed at two symmetrical positions with respect to the rotation center of the rotor 2 so as to be adapted to the width of the engagement recesses 6 other than the lamp pin insertion grooves 11. The conductive contact 4 has a concave portion 4a for positioning the lamp pin P at a position where the conductive contact 4 is in contact with the cylindrical portion 9 at an intermediate portion thereof. Reference numeral 4b denotes a terminal portion of the conductive contact 4 for quickly connecting an electric wire. 22
Is a male screw for a waterproof ring.

The rotor 2 is rotatably provided so as to cover the opening 3 of the socket body 1, has a substantially cylindrical wall portion 19 over substantially the entire peripheral side surface, and inserts a lamp pin when the lamp is not mounted. Lamp pin insertion groove 11 aligned with groove 5
Is formed continuously from the wall 19 to the front surface 2a to at least a central portion beyond the rotation center of the rotor 2. The lamp pin insertion grooves 11 are provided at substantially 90-degree intervals in the wall 19 of the rotor 2.
Are provided with engagement recesses 6, for example, notch-shaped engagement recesses 6 at the remaining three places. The rotor 2 of the embodiment includes:
A tube 16 is formed of a thermoplastic synthetic resin, covers the conductive contact 4, has a tube portion 16 fitted to the tube portion 9 at the center of the front surface 2a, and engages with the claw portion 10 at the inner peripheral edge of the end portion of the tube portion 16. The stopper 17 is formed, and the rotor 2 is rotatably attached to the socket body 1 by using resin elasticity. When the rotor 2 is mounted, a protrusion 14 a is formed on the inner peripheral surface of the wall 19 of the rotor 2.
14c are brought into contact with each other, and the wall portion 1 is
9 is elastically deformed outward, and the engaging projection 13 is elastically engaged with the engaging recess 6 at a predetermined rotation position of the rotor 2.

In the rotary socket of this embodiment, the lamp pin P is rotated by approximately 90 degrees together with the rotor 2 while the lamp pin P is inserted into the lamp pin insertion groove 11 so that the lamp pin P contacts the conductive contact 4. And at this time,
Engagement recess 6, lamp pin insertion groove 11 and engagement protrusion 13
The torque at the position where the lamp pin P is inserted or released is greater than the torque at the lamp mounting position.

According to this embodiment, when the rotor 2 is turned to align the lamp pin insertion groove 11 with the lamp pin insertion groove 5 of the socket body 1, the lamp pin P is put in and out of the lamp pin insertion groove 11 of the rotor 2. be able to. When the lamp 21 is turned after the lamp pin P is moved to the rotation mounting position in the lamp pin insertion groove 11, the rotor 2 also rotates integrally. At this time, since the two lamp pins P protrude into the socket body 1 from the lamp pin insertion grooves 11 of the rotor 2, they come into contact with the contact surface of the conductive contact 4 and elastically deform the same, and at the same time, the engaging projection 13 At a position rotated by approximately 90 degrees while elastically pressing against the wall 19 of the rotor 2, the lamp pin P enters the engaging recess 4 a of the conductive contact 4, and the engaging projection 13 engages with the rotor 2. The joint 6 is locked while being spread. When the engaging projection 13 fits into the engaging recess 6 and the lamp pin insertion groove 11, the engagement projection 13 and the engaging recess 6 of the rotor 2 or the lamp pin insertion groove 11 are changed from the elastic deformation state of the wall 19. When returning to the position, a click sound is generated, and the lamp pin P becomes conductive. When the lamp pin P is further rotated in either direction from this engaged state, the releasing torque required to rotate the lamp 21 is determined by the torque at which the lamp pin P is released from the engaging recess 4a of the conductive contact 4 by the rotor. 2 is added to the release torque from the engagement state between the socket body 1 and the socket body 1, so that the lamp pin P
It becomes larger than the mounting torque. Therefore, the lamp 21
It is easy to attach, and it is easy to confirm a stable conduction state by operating feeling and clicking sound.

In this case, the shape of the engaging recess 6 of the rotor 2 is changed from the conventional longitudinal groove, so that the cylindrical wall portion 19 is formed.
Of the socket body 1 and the same elastic deformation as the projections 14a and 14b having the engagement projections 13 of the socket body 1 is possible. Since the amount of deflection can be increased, clear click feeling and click sound can be generated.

Further, since the mounting / removing position of the lamp 21 is provided at every 90 degrees, it is easier to visually confirm the locking position than at every 30 degrees or 45 degrees as in the prior art. Further, in the attaching / detaching operation of the lamp 21, the detachment torque for rotating the lamp 21 from the lamp mounted state is determined by the torque required for the rotating operation of the engaging protrusion 13 of the socket body 1 and the engaging recess 6 of the rotor 2, and the lamp pin. By using P and the detachment torque of the conductive contact 4 from the engagement portion 4a, the rotation torque at the lamp mounting position can be increased to a value higher than that, and the lamp 21 can be easily mounted and a stable conductive state can be obtained.

FIG. 7 shows a second embodiment of the present invention. That is, in the first embodiment, the width of the recesses other than the lamp pin insertion groove 11 among the engagement recesses 6 and the lamp pin insertion grooves 11 arranged at four locations is substantially equal to the width of the lamp pin insertion groove 11. According to this embodiment, the torque excluding the torque required to rotate the engagement portion 4a of the conductive contact 4 from the rotation torque required for the rotation operation of the rotor 2 is approximately 90 degrees. It can be made almost the same even when rotated from the engaged state.

The other parts are the same as in the first embodiment.
FIGS. 8 to 13 show a third embodiment of the present invention.
That is, in the first embodiment, among the engaging recesses 6 of the rotor 2 and the lamp pin insertion grooves 11 arranged at four locations, those other than the lamp pin insertion groove 11 have a width smaller than the width of the lamp pin insertion groove 11. The engagement protrusion 13 of the socket body 1 is formed so as to be adapted to the width of the engagement recess 6 other than the lamp pin insertion groove 11 of the rotor 2 and is related to the rotation center of the rotor 2 as in the first embodiment. Two engaging recesses 6 (6 a) are formed at symmetrical positions and face the lamp pin insertion groove 11 with respect to the rotation center of the rotor 2.
Is formed so as to have an engagement length substantially twice that of the other engagement recesses 6. In the embodiment, the hanging piece 19a is drooped integrally from the edge of the wall 19, and the engaging recess 6a is formed in a notch extending over the hanging piece 19a and the wall 19 to secure a predetermined length. I have.

According to this embodiment, at the time of the turning operation from the lamp insertion position to the lamp mounting position (90-degree rotation),
This is a disengagement of the two engagement recesses 6 of the rotor 2 and the two engagement protrusions 13 of the socket body 1 from the fitted state, and when the two engagement recesses 6 are engaged with the lamp mounting position (90-degree rotation position). Is
Engagement recess 6 opposed to lamp pin insertion groove 11 of rotor 2
a and one of the engagement projections 13 of the socket body 1. Therefore, when the lamp pin insertion groove 11 cannot be used as the engagement recess 6, the rotor 2
The torque required for the turning operation can be made substantially constant regardless of rotation from any engagement state at approximately 90 degrees.

The other points are the same as in the first embodiment. 14 to 18 show a fourth embodiment of the present invention. That is, in the third embodiment, the engagement protrusion 13 of the socket body 1 is symmetrical with respect to the rotation center of the rotor 2 in conformity with the width of the engagement recess 6 other than the lamp pin insertion groove 11 of the rotor 2. It is formed at one of three positions and between them. That is, in addition to the engagement protrusions 13 of the protrusions 14a and 14b, the engagement protrusion 13 is formed on the outer surface of the protrusion 14c.

According to this embodiment, when the lamp pin insertion groove cannot be used as the engagement concave portion, the amount of change in rotational torque at the lamp attaching / detaching position can be increased, so that a clearer operational feeling can be obtained, and the position can be confirmed. It will be easier. Others are the same as the third embodiment.

[0024]

According to the rotary socket of the first aspect, the wall thickness of the cylindrical wall can be reduced by changing the shape of the engaging concave portion of the rotor from the conventional vertical groove. Since the same elastic deformation as that of the engaging projection of the socket body can be achieved, the amount of bending when the engaging recess and the engaging projection are fitted can be increased, so that a clear click feeling and click sound can be obtained. Can be issued. Further, by providing the mounting / removing position of the lamp at every 90 degrees, it becomes easier to visually confirm the locking position than at every 30 or 45 degrees as in the related art.

Further, in the lamp mounting / removing operation, the detachment torque for rotating the lamp from the lamp mounted state is the torque required for the rotation operation of the engaging projection of the socket body and the engaging recess of the rotor, and the conductive contact with the lamp pin. By utilizing the detachment torque of the child from the engaging portion, the rotation torque at the lamp mounting position can be made higher than the rotational torque, so that the lamp can be easily mounted and a stable conduction state can be obtained.

According to the rotary socket of the second aspect,
In addition to the same effects as those of claim 1, the torque other than the torque required for rotating the conductive contact from the rotating torque required for the rotating operation of the rotor is rotated from any engagement state at approximately 90 degrees. It can be almost the same. According to the rotary socket according to the third aspect, in addition to the same effect as the first aspect, when the lamp pin insertion groove cannot be used as the engagement recess,
The torque required for the rotating operation of the rotor can be made substantially constant even when the rotor is rotated from any engagement state at approximately 90 degrees.

According to the rotary socket of the fourth aspect,
In addition to the same effects as those of the first aspect, when the lamp pin insertion groove cannot be used as the engagement recess, the amount of change in the rotational torque at the lamp attaching / detaching position can be increased, so that a clearer operational feeling can be obtained, and the position can be confirmed. It will be easier.

[Brief description of the drawings]

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

FIG. 2 shows a rotary socket, (a) is a side view,
(B) is a front view.

FIG. 3A is a front view of a state where a rotor is removed, and FIG.
FIG. 4 is a perspective view of an engagement portion having an engagement protrusion.

FIG. 4 is a sectional side view.

5A and 5B show a rotor, and FIG.
(B) is a perspective view of the inside.

6A is a partially cutaway front view showing a state in which a lamp pin is slid into a lamp pin insertion groove, and FIG.
(B) is a partially cutaway front view of the lamp mounted state with the lamp pin rotated.

7A and 7B show a rotor according to a second embodiment, in which FIG. 7A is a perspective view seen from the outside, and FIG. 7B is a perspective view seen from the inside.

FIG. 8 is an exploded perspective view of the third embodiment.

FIG. 9 shows the rotary socket, (a) is a side view,
(B) is a front view.

FIG. 10A is a front view of a state where a rotor is removed,
(B) is a perspective view of an engaging part having an engaging convex part.

FIG. 11A is a perspective view of the rotor viewed from the outside,
(B) is a perspective view seen from the inside.

FIG. 12 is a sectional side view.

13A is a partially cutaway front view showing a state in which a lamp pin is slid into a lamp pin insertion groove, and FIG.
(B) is a partially cutaway front view of the lamp mounted state with the lamp pin rotated.

FIG. 14 is an exploded perspective view of a fourth embodiment of the present invention.

FIG. 15 shows a rotary socket, wherein (a) is a side view,
(B) is a front view.

FIG. 16A is a front view of a state where a rotor is removed.
(B) is a perspective view of an engaging part having an engaging convex part.

FIG. 17 is a sectional side view.

FIGS. 18A and 18B show a rotor, and FIG.
(B) is a perspective view of the inside.

19A and 19B show a conventional rotor, in which FIG. 19A is a perspective view seen from the outside, and FIG. 19B is a perspective view seen from the inside.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket main body 2 Rotor 3 Opening 4 Conductive contact 5 Lamp pin insertion groove 6 Engagement concave part 11 Lamp pin insertion groove 13 Engagement convex part 19 Wall part

Claims (4)

[Claims] 1. A lamp pin insertion groove which has an opening on the front surface and has a conductive contact in contact with a lamp pin of a lamp inside the opening, and a lamp pin insertion groove for inserting the lamp pin inside the opening communicates from the side surface with the opening. A socket body formed so as to cover the opening of the socket body and rotatably provided, having a substantially cylindrical wall portion over substantially the entire circumferential side surface, and inserting the lamp pin in a state where the lamp is not mounted. A rotor formed with a lamp pin insertion groove aligned with the groove, continuously extending from the wall portion to the front surface to at least a center portion beyond the rotation center of the rotor, and in a state where the lamp pin is inserted into the lamp pin insertion groove. In a rotary socket in which the lamp pin is rotated by approximately 90 degrees together with the rotor to bring the lamp pin into contact with the conductive contact, a wall of the rotor includes Notch engagement recesses are provided at the remaining three places including the lamp pin insertion grooves at approximately 90 degree intervals, and the socket body is fitted into the engagement recesses and the lamp pin insertion grooves by rotation of the rotor. A mating engagement projection is provided, and the torque at the position where the engagement pin is inserted or detached from the engagement state between the engagement recess and the engagement projection is changed to the torque at the lamp mounting position. A rotary socket characterized by the above. 2. The rotary socket according to claim 1, wherein a width of said engaging recess is formed substantially equal to a width of said lamp pin insertion groove. 3. The width of the engaging concave portion is formed to be smaller than the width of the lamp pin insertion groove, and the engaging convex portion is positioned at a symmetric position with respect to the rotation center of the rotor in conformity with the width of the engaging concave portion.
The engaging concave portion formed at a location and facing the lamp pin insertion groove with respect to the rotation center of the rotor has an engagement length with the engaging convex portion substantially twice as long as the other engaging concave portions. The rotary socket of claim 1 formed. 4. The engaging recess is formed to have a width smaller than the width of the lamp pin insertion groove, and the engaging protrusion is adapted to the width of the engaging recess and symmetrically positioned with respect to the rotation center of the rotor and the same. Formed at one of the three positions, and the engagement concave portion facing the lamp pin insertion groove with respect to the rotation center of the rotor has an engagement length with the engagement convex portion which is equal to that of the other engagement concave portion. The rotary socket according to claim 1, wherein the rotary socket is formed to be approximately twice as large.