JPH0231989Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention mainly relates to a lamp socket into which a single-cap fluorescent lamp is detachably mounted.

[Background technology]

Conventional examples are shown in FIGS. 3 to 5. In the figure, 1 is the socket main body, 2a to 2d are short guide walls projecting from the periphery of the socket main body 1, and 3 is a stopper leaf spring that fits into the socket main body 1 from the bottom and is fixed to the bottom. The portion is located between the short guide walls 2a, 2c and between the guide walls 2b, 2d, and has dogleg-shaped locking portions 4, 4.

Further, reference numeral 5 denotes a lamp pin base for fixing the single-cap fluorescent lamp 6 and from which four lamp pins 7 are projected, and the peripheral wall surface of the lamp pin base 5 is a lamp pin base which is detachably engaged with the locking parts 4 of the leaf spring 3. Coupling protrusions 5a, 5
a is protruding.

8 is a lighting equipment case, 8A is a case wall surface to which the socket main body 1 is fixed, and 8B is a case wall surface facing the case 8A.

In FIG. 4, X is the attachment/detachment direction of the single-cap fluorescent lamp 6, and in FIG. 5, _X1 is the single-cap fluorescent lamp 6.
represents the direction of departure.

This conventional example had the following problems. That is, the single-cap fluorescent lamp 6 is generally attached to and detached from the socket body 1 in a straight line as shown by the arrow X. This attachment/detachment operation is performed within a narrow case 8 as shown in FIG. Therefore, if the force is too strong when removing the single-cap fluorescent lamp 6 in _the There was a risk that the gold fluorescent lamp 6 would be damaged.

In particular, the socket body 1 of the single-cap fluorescent lamp 6
In order to maintain a stable wearing posture,
When the leaf spring 3 having the locking portions 4, 4 and the engagement protrusions 5a, 5a that engage and disengage therewith are provided, the force for detaching the single-cap fluorescent lamp 6 becomes large;
There was a problem in that the force of detachment tends to be strong, and there is a considerable risk of damage to the single-cap fluorescent lamp 6.

[Purpose of invention]

The purpose of this invention is to provide a socket for a lamp that can reliably prevent damage to the lamp by stopping the force of removal midway through the removal operation of the lamp.

[Disclosure of invention]

The lamp socket of this invention includes a lamp pin cap guide wall having a protrusion amount greater than the length of the lamp pin protruding from the periphery of the socket body, and a lamp pin base guide wall formed along the protrusion direction on the guide wall, and a lamp pin base guide wall having a protrusion length extending from the periphery of the socket body, and a lamp pin cap guide wall formed along the protrusion direction of the guide wall. The lamp pin base includes a base protrusion guide having a stopper for the side protrusion of the lamp pin base.

According to the configuration of this invention, there are the following effects.
That is, when the lamp is removed along the direction in which the lamp pin cap guide wall protrudes from the socket body, the guide formed on the guide wall guides the lamp pin cap protrusion.

When the base protrusion reaches the end in the guide protrusion direction, the base protrusion hits a stopper at this end, and the stopper receives the lamp detachment operation force, thereby stopping the lamp. In other words, the force of departure from the ramp is stopped by the stopper.

Therefore, there have never been any cases where the lamp has been pulled out as it is due to the release operating force, and there have been no cases where the lamp has been pulled out as it is due to the release operating force, and there have been no cases where the lamp has been removed from the lighting equipment case or Collision with ballasts and other parts located nearby is prevented. That is, the lamp removal operation can be performed safely without causing damage to the lamp.

Embodiment An embodiment of this invention will be described based on FIGS. 1 and 2. In these figures, the same reference numerals used in FIGS. 3 to 5 relating to the conventional example refer to the same parts and portions as those indicated by the reference numerals. FIG. 1 is a partially cutaway front view showing a lamp socket together with instructions for attaching and detaching a single-cap fluorescent lamp 6, and FIG. 2 is a perspective view of the lamp socket.

At one end of the socket body 1 in the longitudinal direction,
The socket body 1 is integrated with the short guide walls 2a and 2b of the conventional example.
A lamp pin base guide wall 9 integrally protrudes from the peripheral portion thereof, and has a protrusion amount approximately equal to the sum of the length of the lamp pin 7 and the width of the lamp pin base 5.

In the center of the guide wall 9 in the width direction, a guide 10 formed as a through hole is formed along the protruding direction of the guide wall 9 as an example of the "cap protrusion guide" in the structure of the invention. .

At the end of the guide 10 serving as the through hole in the direction in which the single-cap fluorescent lamp leaves the lamp, that is, in the direction in which the guide wall 9 protrudes, a protruding stopper is provided on the outer surface of the guide wall 9 as an example of a "stopper" in the structure of the invention. 11 is formed protrudingly.

At both longitudinal ends of the lamp pin base 5,
Side protrusions 12, 12 are integrally formed on the peripheral wall surface.

Next, the socket body 1 of the single-cap fluorescent lamp 6
We will explain how to attach and detach it.

Move the single-cap fluorescent lamp 6 from the position indicated by the solid line in the _Y1 direction, and move the cap protrusion 12 to the guide wall 9.
While inserting into the guide 10, the peripheral wall surface of the cap 5 is brought into contact with the inner surface of the guide wall 9. This state is the state indicated by the two-dot chain line.

From the state shown by the two-dot chain line, insert the single-cap fluorescent lamp 6.
Push in along the _X1 direction, and then tighten the lamp pin 7...
is inserted into the pin hole (not shown) of the socket body 1 and connected.

During this pushing, in the first half, the guide wall 9 and the mouthpiece protrusion 1 are in contact with the peripheral wall surface of the mouthpiece 5.
The guide 10 into which the cap 2 is inserted guides the cap 5. In the latter half, the guide walls 9, 2c, 2d and both cap protrusions 12, 12 are inserted and fitted into the guide 10 and the gap 13 between the guide walls 2c, 2d guides the cap 5.

When the cap 5 is pushed in, the engagement protrusions 5a, 5a of the cap 5 elastically engage with the locking portions 4, 4 of the leaf spring 3, thereby preventing the single-cap fluorescent lamp 6 from accidentally slipping out.

When removing the single-cap fluorescent lamp 6,
Pull out the single-cap fluorescent lamp in the X ₂ direction. At this time, the moment the engaging protrusions 5a, 5a are disengaged from the locking parts 4, 4, the disengagement speed increases all at once.

However, the cap protrusion 12 is guided while being inserted into the guide 10, and the stopper 1 at the rear end
1 and its movement is stopped. The two-dot chain line also represents the state at this time. In this state, the base 5 and the lamp pins 7 are separated from the guide walls 2c, 2d.

Next, when the single-cap fluorescent lamp 6 is moved in the _Y2 direction, the cap protrusion 12 is separated from the guide 10, and the detachment operation is completed.

From the above, it is clear that according to this embodiment, the effects achieved by the configuration of the invention described above can be obtained.

In addition to the above, this embodiment also includes the following.

(a) One without leaf spring 3. In this case, there is no sudden increase in the pulling force at the moment the leaf spring 3 is separated from the locking parts 4, 4, and the stopper 11 of the cap protrusion 12
This has the advantage of reducing impact resistance. In this example, the cap 5 has engaging protrusions 5a, 5a.
It is not necessary to provide

(b) The guide 10 has a groove instead of a through hole. In this case, the "stopper" referred to in the configuration of the invention becomes one end of the groove.

(c) The guide 10 is a through hole, but the stopper 11 projected from the outer surface of the guide wall 9 shown in FIG. 1 is omitted. In this case, the "stopper" referred to in the configuration of the invention is one end of the through hole.

(d) The guide walls 2c and 2d are omitted. In this case, the guide wall 9 forming the guide 10 only needs to protrude by the same amount as the guide walls 2a, 2d of the conventional example, making it more compact. Note that in this example, the leaf spring 3 may be left in place.

(e) The guide wall 9 forming the guide 10 is configured to span the guide walls 2a, 2c instead of the guide wall 9 that spans the guide walls 2a, 2d of the conventional example. In this case, the leaf spring 3 may be omitted, or
Alternatively, they may be located at both ends of the socket body 1 in the longitudinal direction. Further, the guide 10 is provided at the center of the socket body 1 in the longitudinal direction of the guide wall 9, and in accordance with this, the base protrusion 12 to be inserted into the guide 10 is provided at the center of the base 5 in the longitudinal direction.

[Effect of idea]

This idea has the following effects.

That is, when the lamp is detached, when the base protrusion reaches the end in the guide protrusion direction, the base protrusion hits the stopper at this end, this stopper receives the lamp detachment operation force, and the lamp is removed. , and the momentum of leaving the ramp is stopped by the stopper.

Therefore, there is no possibility that the lamp will be pulled out as it is due to the release operation force, the lamp will be prevented from colliding with the luminaire case, the ballast or other parts installed nearby, and the lamp will not be damaged. This has the effect that the removal operation can be performed safely without causing damage to the lamp.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of an embodiment of this invention showing the procedure for attaching and detaching it, Fig. 2 is a perspective view of the embodiment, Fig. 3 is a perspective view of a conventional example, and Fig. 4 is a perspective view of the embodiment. Its sectional view and FIG. 5 are perspective views showing the procedure for attaching and detaching. 1...Socket body, 5...Lamp pin cap,
7... Lamp pin, 9... Guide wall, 10... Guide, 11... Stopper, 12... Base protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A lamp pin base guide wall having a protruding amount equal to or greater than the length of the lamp pin protruding from the peripheral part of the socket body, and a guide wall formed on the guide wall along the protruding direction, and a side end in the protruding direction. A socket for a lamp, comprising a cap protrusion guide having a stopper for a side protrusion of the lamp pin cap at a portion thereof. (2) The lamp socket according to claim 1, wherein the guide wall is provided at one longitudinal end of the socket body. (3) The lamp socket according to claim 1, wherein the guide is a through hole. (4) The lamp socket according to claim (3), wherein the stopper is formed to protrude from the outer surface of the guide wall at the end of the through hole.