JPH0231990Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a lamp push type fluorescent lamp socket.

[Background technology]

Conventional examples are shown in FIGS. 6 and 7. In the figure, 1 is a lamp socket, 2 is a socket cover,
3 is a lamp, 4 is a lamp pin, 5 is a ceiling or other wall, E is an AC power supply, D is a diode bridge, F
is a high frequency generation circuit. Between a and b is usually 230
(V) voltage.

In the state shown in the figure, the lamp 3 is being inserted into the lamp socket 1 by pushing it into the lamp socket 1, but after one lamp pin 4 is set, the other lamp pin 4 accidentally comes into contact with the conductive socket cover 2. As a result, there was a risk of accidents such as electric shock and ground faults. A similar problem occurred when leaving the ramp.

Furthermore, in the conventional example, the lamp comes off by a simple operation of pushing and pulling the lamp, which is one of the causes of electric shocks and ground faults.

[Purpose of invention]

The purpose of this invention is to provide a fluorescent lamp socket that is highly safe to operate and is free from accidents such as electric shocks and ground faults when attaching and detaching the lamp.

[Disclosure of invention]

The fluorescent lamp socket of this invention consists of a socket body, a pair of left and right contacts attached to the socket body, and a plug holder that is attached to the socket body so as to be rotatable and movable back and forth while being pressed forward. The lamp pin through-hole formed in this plug holder is engaged with the plug holder in a state where the lamp pin through hole is displaced from the pair of contacts, and the plug holder is held at its front end position. A rotation stopper is provided on the socket body to restrict rotation, and a rotation stopper is provided on the socket body to release the stopper from the rotation stopper by pushing the stopper into the stopper. a rotation permitting portion for allowing the lamp pin through hole to rotate to a position corresponding to the pair of contacts; and a rotation permitting portion provided in the socket body to allow the lamp pin through hole to rotate to a position corresponding to the pair of contacts. and a movement restricting portion that restricts movement of the stopper receptacle toward the rear side in the closed state.

This configuration has the following effects. That is, when attaching a lamp to a socket, first, for one lamp pin, when the lamp pin is inserted into the lamp pin insertion hole of the plug holder, the lamp pin insertion hole and the pair of contacts are connected to each other as described above. Since the receiver is misaligned in the rotating direction, the lamp pin and the contact have not yet come into contact with each other. In this state, the plug holder is locked to the rotation stopper part of the socket body, so that the lamp is prevented from rotating unexpectedly and the lamp pin comes into contact with the contact.

When the lamp is pushed in, the spigot receptacle is moved rearward against the force biasing it forward.

In this way, with one lamp pin inserted into the lamp pin insertion hole and the plug holder pushed into the socket body, the other lamp pin is similarly attached to the other socket body. In other words, when the lamp pin is inserted into the lamp pin insertion hole of the plug holder in the same manner as the one lamp pin described above, the lamp pin insertion hole and the pair of contacts are misaligned in the rotational direction of the plug holder. , contact between the lamp pin and the contact has not yet been made.

That is, both lamp pins are not in contact with the contactor. In other words, only after both the lamp pins at both ends are attached to the socket body, both plug holders are aligned with the rotation permitting part and rotation is possible, and the lamp pin is in a state where it can come into contact with the contact. .

Therefore, even if one of the lamp pins comes into contact with a conductive member such as the socket cover, there is no risk of electric shock or ground fault when both lamp pins are not yet attached to the socket body.

Furthermore, when the lamp pin inserted into the lamp pin insertion hole of the plug holder is in contact with the pair of contacts, the movement restriction section restricts the movement of the plug holder toward the rear side, so that the operation is difficult. Even if a person tries to push or pull the lamp by mistake in an attempt to remove it, the lamp holder cannot be pushed or pulled because the movement of the stopper holder is restricted. This not only alerts workers to operational errors, but also prevents the lamp from coming off easily and causing accidents such as electric shock or ground faults due to the lamp pin coming into contact with the socket cover, unlike conventional lamps. This will ensure that such things are prevented.

Due to the above synergy, the lamp can be attached and detached extremely safely.

Embodiment An embodiment of this invention will be described based on FIGS. 1 to 5. Fig. 1 is a perspective view of the disassembled state, Fig. 2A, Fig. 4 A, B, and Fig. 5 A are the state in which the lamp pin 4 is inserted, Fig. 2B, Fig. 4C, D, and Fig. 5. B shows the state in which the lamp 3 is rotated.

The socket main body A has a body 6 and this body 6.
It consists of a cover 8 which is removably fixed with screws 7. Two conductive contacts 9 are attached symmetrically to the left and right sides of the body 6. This contactor 9 has a curved shape and has spring properties.

Further, on the back of each contact 9, a leaf spring 21 having substantially the same shape as the contact 9 is superimposed and attached to the body 6. This leaf spring 21 is also preferably electrically conductive. In addition, in FIG. 1, the contactor 9,
Only one of the pair of leaf springs 21 is shown, the other being omitted.

A disc-shaped plug receiver 1 is provided in the circular opening 8a of the cover 8.
0 is rotatably fitted inside. The contacts 9, 9 are in contact with the inner surface of the plug receiver 10, and the leaf spring 21 is urging the plug receiver 10 forward. By being locked to the peripheral portion 12, it is held in a non-slip state.

22 is a boss integrally formed on the body 6 for screwing the screw 7, 23 is a locking pawl integrally formed on the top of the cover 8, and this locking pawl 23 is
It is locked in a locking groove 24 at the top of the body 6.
Reference numeral 25 is a mark for displaying attachment/detachment position, reference numeral 26 is a mark for displaying connection position, and reference numeral 27 is a mark for displaying operation direction.

A pair of large and small notches 13, 13' are formed at four locations on the peripheral flange 11 of the stopper body 10 at 90-degree intervals, and a guide engages two of these notches 13, 13'. 14, 15... are connected to the body 6 and the cover 8 at the top of the inside of the socket body A.
These guides 14, 15, . . . constitute the “rotation prevention portion” in the configuration of the invention.

The guide 15 on the body 6 side has two stripes 15a,
15a, and the actual width of both strips 15a, 5a as a whole is approximately equal to the width of the guide 14.
Another guide 15' is integrally formed on the top inner surface of the body 6. Width R of the large notch 13,
The relationship among the width S of the small notch 13', the width T of the side guide 15, and the width U of the top guide 15' is R>T>
S>U.

That is, 13, 13 are "wide notches" in the composition of the invention, 13', 13' are also "small width notches", and 14, 14, 1
Similarly, numerals 5 and 15 are "wide guides", and 15' is a "small guide".

There is a gap 16 in the front-rear direction between the guides 14 and 15, and this gap 16 has a width larger than the thickness of the peripheral flange 11 of the stopper body 10, and is called a "rotation permitting part" in the structure of the invention. is doing.

A pair of wider guides 15, 15 on the back side of the body 6 also serves as the "movement regulating section" in the configuration of the invention.

As shown in Figure 2A, a wide notch 13,1
3 corresponds to the wide guides 15, 15, and the small width notch 13' corresponds to the small width guide 1.
5', the stopper receiver 10 is only allowed to move back and forth, and its rotation is restricted.

The stopper receiver 10 is movable in the front-rear direction with the notches 13, 13, 13' being guided by the guides 14, 15..., 15'. Notch 13, 13,
13' is locked to the guides 15, 15, 15', the plug receptacle 10 is moved against the urging force of the contacts 9, 9 and the leaf springs 21, 21, and by the urging force thereof. It is movable in the front and rear directions.

A pair of lamp pin penetration holes 1 are provided in the plug receiver 10.
7 and 17 are formed. The pitch direction of the lamp pin penetration holes 17, 17 is determined by the notches 13, 1.
3, 13' are locked to the guides 14, 15, . (See Figure 2A, Figures 4A and B).
The lamp pin penetration holes 17, 17 are formed on a line connecting the small width notches 13', 13'.

One lamp pin 4, 4 is inserted into the lamp pin penetration hole 1.
7, 17 and push the stopper body 10 with the end of the lamp 3 against the springy contacts 9, 9 and the leaf springs 21, 21, the peripheral flange 11 of the stopper body 10 will be pushed in. Guide 1 from guide 14 across gap 16
5.

Next, the other lamp pins 4, 4 are inserted into the lamp pin insertion holes 17, 17 of the other socket body A. Due to the balance of the contacts 9 of both socket bodies A, A, the respective plug holders 10, 10 are originally positioned exactly in the gaps 16, 16.

Therefore, both stopper receivers 10, 10 are in a state where they are allowed to rotate, and the lamp 3 can be rotated in this state. At this time, the plug holders 10, 10 into which the lamp pins 4, 4 are inserted also rotate, and due to the approximately 90 degree rotation, the lamp pins 4, 4... are moved against the pair of contacts 9, 9... is pushed outward against its springiness. Due to the reaction force, the contacts 9, 9 come into strong contact with the lamp pins 4, 4, . . . (see FIG. 2B and FIGS. 4C and D).

As described above, only after both the lamp pins 4, 4, . This rotation becomes possible, and the lamp pins 4, 4 are brought into contact with the contacts 9, 9.

Therefore, when both lamp pins 4, 4... are not yet attached to the socket bodies A, A,
Even if one of the lamp pins 4, 4 comes into contact with a conductive member such as a socket cover, there is no risk of electric shock or ground fault. That is, lamp 3
This makes it extremely safe to install. The configuration for this purpose is not so complicated as compared to the conventional example, and can be implemented at low cost.

In particular, when the plug holder 10 rotates from the state shown in FIG. 2A to the state shown in FIG. Since the notches 13', 13' coincide with the wide guides 15, 15 of the socket body 6, which are located deeper than the gap 16, the stopper holder 10 cannot move further to the rear. In other words, even if an attempt is made to remove the lamp 3 by pushing or pulling, this is prevented.

In order to remove the lamp 3, the lamp 3 must be turned back to its original position. When it is returned like this, lamp pin 4,
4 is separated from the contacts 9, 9, and there is no risk of electric shock or ground fault.

When the lamp pins 4, 4 are connected to the contacts 9, 9, the pitch direction of the lamp pin penetration holes 17, 17 is horizontal, and as shown in FIG. 5A, the lamp display mark 29 on the lamp 3 and the base Mark 30 can be seen directly below. Therefore, lamp 3
The visibility of the connection (lighting) state position is excellent. That is, the lamp display mark 29 and the cap mark 30 are normally provided in the lamp 3 at positions perpendicular to the pitch direction of the lamp pin penetration holes 17, 17.

Furthermore, since there is an attachment/detachment position indication mark 25, a connection position indication mark 26, and an operation direction indication mark 27, there is no mistaking the attachment/detachment operation of the lamp 3.
The operation can be performed quickly and easily.

Note that there may be a plurality of guides 14, 15 in the circumferential direction. Further, there may be a plurality of gaps 16 in the longitudinal direction. The plate spring 21 may be omitted and the contact 9 itself may have sufficient spring properties.

[Effect of idea]

According to this invention, in order to reliably prevent the lamp from coming off with a simple operation of pushing and pulling the lamp, in other words, the connection between the lamp pin and the contactor is released and the lamp is placed in a safe state. It is only when the lamp is removed that the lamp is allowed to be removed. Conversely, when the lamp is only inserted into the socket by pushing and pulling, the lamp pin is not yet connected to the contact, so it is difficult to remove the lamp. Accidents such as electric shocks and ground faults can be reliably prevented, and safety in attaching and detaching operations can be significantly improved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an exploded state showing an embodiment of this invention, A of Fig. 2 is a front view with the lamp pin inserted through it, B is a front view of the lamp with the lamp rotated;
Figure 3 is a perspective view of the assembled state, Figures A and B of Figure 4 are a front view and a partially cutaway plan view with the lamp pin inserted, and C and D are a front view and a portion of the lamp with the lamp rotated. A is a perspective view of the broken state, A is a perspective view of the lamp pin inserted, B is a perspective view of the lamp rotated, FIG. 6 is a perspective view of the conventional example in use, and FIG. It is an electrical circuit diagram. A...Socket body, 4...Lamp pin, 9...
...Contact, 10...Plug receiver, 13...Large width notch, 13'...Small width notch, 14,1
5...Large width guide, (rotation prevention part), 15'
...Small width guide (rotation stopper), 16...
Gap (rotation permissible part), 17... Lamp pin penetration hole,
18... Coil spring, 21... Leaf spring, 25...
Lamp attachment/detachment position display mark, 26... Lamp connection position display mark, 15, 15... Movement restriction section.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A socket body, a pair of left and right contacts attached to the socket body, and a pair of contacts attached to the socket body so as to be rotatable and movable back and forth while being pressed forward. A plug holder, a lamp pin insertion hole formed in the plug holder, and a lamp pin insertion hole formed in the plug holder are locked with the plug holder when the lamp pin insertion hole is displaced from the pair of contacts. a rotation stopper provided on the socket body to restrict rotation at the front end position; and a rotation stopper provided on the socket body to release the stopper body from the rotation stopper by pushing the stopper body into the stopper body and hold the stopper body in that position. a rotation permitting part for allowing the plug holder to rotate to a position where the lamp pin insertion hole corresponds to the pair of contacts; and a rotation permitting part provided in the socket body so that the lamp pin insertion hole corresponds to the pair of contacts. A fluorescent lamp socket, comprising: a movement restriction part that restricts movement of the plug holder toward the rear side when the plug holder is rotated to a position. (2) The rotation preventing portion locks a plurality of notches of mutually different widths formed in the plug holder and guides the back and forth movement of the plug holder. A request for registration of a utility model, wherein the width of the larger guide is larger than the width of the smaller notch, and the rotation permitting portion is a gap in the middle of each of the guides. Fluorescent lamp sockets as described in scope (1). (3) A pair of the wide guides are provided on the left and right, and the small width notches are formed at both ends of the stopper receiver in the diametrical direction, and the pair of small width notches are brought into contact with each other. The fluorescent lamp socket according to claim (1), wherein the pair of guides having a large width also serves as the movement regulating portion. (4) The fluorescent lamp socket according to claim 1, wherein the plug holder has the lamp pin insertion hole formed on a line connecting the pair of narrow notches. (5) In the socket body and plug holder, a lamp attachment/detachment position in which the lamp pin insertion hole is displaced from the pair of contacts, and a lamp connection position in which the lamp pin insertion hole corresponds to the pair of contacts; A fluorescent lamp socket according to claim (1) of the utility model registration, which is marked with a mark.