JP2002075565A - Single-ended base lamp socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a single-ended base lamp socket allowing a base housing to be surely fixed to a socket main body in a desired position temporarily. SOLUTION: In a base housing 20 allowing insertion of the base of the single- ended base lamp, a conduction pin is projected on the bottom face, while locking projections are arranged on both end walls. In this socket, the base housing 20 is journalled to the socket main body 1 freely rotationally, and the journal part is constructed of shafts 10A and 10B and shaft holes 26A and 26B for inserting these shafts. The shape of the shaft and the shaft hole is not formed into a complete round but constructed to produce a locking part for locking the shaft and the shaft hole mutually in rotation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket for a one-base lamp, and more particularly to a socket suitable for use on a wall.

[0002]

2. Description of the Related Art As a typical example of this type of lamp, as shown in FIGS. 8 and 9, one tube is bent at the center, and both ends of the tube are close to each other. The base is fixed by a base S formed of a heat-resistant insulating material. The base of the base S has a shape in which both short sides of a rectangle are arcuate, and a pair of tapered tops are formed on both side walls in the longitudinal direction. And a pair of two pairs of conducting pins P protruding from the bottom surface of the base S.

As a socket for mounting this type of lamp, a wall holding one side of the base including protrusions at both ends of the base is formed, and a pin for lamp conduction is inserted into the bottom plate of the socket body. A pin insertion hole is provided.On the other hand, a notch concave portion in which the protrusions at both ends of the base are to be accommodated is provided inside both end surfaces of the wall, and a shape along one side of the protrusion is formed in the notch concave portion. It is known that a locking tool having a bent tip is provided so as to cover the top in an eaves shape. In this socket, the outer edge of the base is in contact with the bottom plate of the socket, and the pin is inserted into the pin insertion hole and the projection is inserted and locked in the notch recess by rotating the base so as to raise the lamp. Was attached to the socket.

However, when this type of lamp is mounted on a socket of a lighting fixture provided on a wall surface such as a ceiling, it is difficult to mount the lamp by the above-described mounting method. A base for accommodating a base of a one-base lamp provided with projections for locking on both side walls is rotatably mounted on a socket body so that the base of the base is overlapped with a bottom plate of the socket body. There has been proposed a socket of a type in which a mounting position and a detachable position at which the bottom plate of the base accommodating portion is separated from the bottom plate of the socket main body by rotation are rotated (for example, Japanese Utility Model Laid-Open No. 5-45975).

In the latter socket, the base housing rotates with respect to the socket body. In this case, the base housing is temporarily fixed to the socket body at the mounting position of the lamp, thereby stabilizing the mounted state. Desirable for
On the other hand, it is desirable that the base accommodating portion is temporarily fixed to the socket body even at the lamp attaching / detaching position in order to facilitate attaching / detaching the lamp. In addition, by notifying the attachment / detachment position by temporary fixing, an effect of suppressing further excessive rotation that may lead to damage to the device can be expected.

[0006] Therefore, in the above-mentioned known document, a locking piece is protruded from the side of the base accommodating portion, and the locking piece is locked inside the side wall of the socket body so as to be able to climb over.
A configuration is disclosed in which the convex ribs of the book are provided corresponding to the mounting position and the attaching / detaching position of the lamp. According to this configuration,
When the locking piece on the side of the base accommodating portion is engaged with the second convex rib inside the side wall of the socket main body, the base accommodating section is temporarily fixed at the attaching / detaching position. When turning, the locking piece on the side faces the first inside of the side wall of the socket body.
By going over the convex rib, the locking piece is locked to the convex rib, and the mouthpiece housing will be temporarily fixed at the mounting position,
In addition, a click feeling can be felt as a response when the user climbs over the first convex rib.

[0007]

However, in this case, the temporary fixing of the base housing at the attachment / detachment position is such that the side locking piece is engaged in one direction of the second convex rib inside the side wall of the socket body. This is realized by stopping, so that the base housing portion can freely rotate in the locking / unlocking direction, and is not always stable in the attaching / detaching position. In some cases, it is desirable to select a plurality of types of attachment / detachment positions of the base accommodating portion.
Was determined only by the convex rib.

[0008]

SUMMARY OF THE INVENTION A socket for a one-base lamp according to the present invention has been created in order to solve the above-mentioned problems of the prior art. The base for receiving the base of the one-sided lamp having projections for locking on both side walls is rotatably mounted on the socket body so that the base for the base can be inserted into the socket body, and the bottom plate of the base housing is superimposed on the bottom plate of the socket body. In the socket, which is rotated and switched between the mounting position and the detachable position where the bottom plate of the mouthpiece housing part is separated from the bottom plate of the socket body, the shaft attachment portion is composed of a shaft and a shaft hole into which this shaft is inserted, and the shape of the shaft and the shaft hole Are not perfect circles, and are configured so that locking portions that lock each other when rotating are generated, and are made of a material having elasticity enough to be able to get over the locking portions due to mutual deformation when rotated forcibly. Shaft or shaft hole or Characterized by being configured to both.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The socket of the present invention comprises a socket main body 1 and a base accommodating portion 20 rotatably mounted on the socket main body (see FIGS. 1 and 2). Here, these are formed of plastic.

The base 20 is provided with the base S of the single base lamp L.
Is inserted into the opening H and has a container-like shape with the inside conforming to the shape of the base, and a periphery for holding the peripheral side of the base around the bottom plate 23 for receiving the base. The side wall 21 is set up. This peripheral side wall 21
At the time of insertion, protrusions S1, S for locking on both side walls of the base S.
A pair of slits 2 for releasing 1 and exposing it
2A and 22B are provided (see FIG. 9). Also, the bottom plate 23
The bottom plate 2 of the socket body 1 described later in the mounting position
A window 24 from which the base 6 is exposed is provided.

The socket body 1 is a semi-container having an opening at the top and the front for receiving the base 20 in a superposed state at the mounting position, and has a bottom plate 23 of the base.
The back plate 5 and both side walls 3A, 3A
B is erected, and the back surface of the back plate 5 is a mounting surface for the lighting fixture W (see FIGS. 8 and 9). These side walls 3A and 3B are engaged with the projections S1 and S1 for locking on both side walls of the base S of the lamp L exposed from the pair of slits 22A and 22B of the base housing portion 20 at the mounting position. Retaining recess 4 shaped along one side of the projection
A and 4B are provided. Also, when the bottom plate 23 of the base accommodating portion 20 is superposed on the surface of the bottom plate 2, the bottom surface of the base S exposed from the window 24 comes into contact with the surface and is guided to the pin insertion hole 7 provided on the surface. A mouthpiece receiving seat 6 into which a pass-through pin P is inserted is provided in a raised manner. In this case, the height of the bulge of the mouthpiece receiving seat 6 is at least
Must be equal to the thickness of the bottom plate 23. In addition, although not shown, a blade-like contact fitting which the pins P come into contact with when they are inserted is disposed in the pin insertion hole 7.

The base 20 is pivotally attached to the socket body 1 with an attachment. for that reason,
Shafts 10A and 10B protrude from both ends on the open side of the bottom plate 2 of the socket body 1 facing the back plate 5 (see FIG. 4), and projecting pieces 25A hanging from both ends of the peripheral side wall of the base housing 20. 25B is provided with shaft holes 26A and 26B into which the shafts 10A and 10B are to be inserted (see FIG. 3). The shapes of the shaft and the shaft hole are not perfect circles, and are configured so as to generate locking portions that lock each other during rotation. The shaft, the shaft hole, or both of them are made of a material having a degree of elasticity to the extent possible. In this embodiment, the outer shapes of the shafts 10A and 10B are polygonal (an octagon is illustrated here), and the inner shapes of the shaft holes 26A and 26B into which the shafts are inserted. Is formed into a polygonal shape corresponding to the shape of the shaft, so that a locking portion that locks each other during rotation is generated. Further, as described above, in this embodiment, the entire socket is formed of plastic,
By selecting a plastic material having relatively high elasticity, it is possible to get over the locking portion by the mutual deformation of the shaft and the shaft hole when the base housing portion 20 is forcibly rotated.

The socket of the present invention having the above-described structure is mounted on a lighting fixture W mounted on a wall surface such as a ceiling (see FIG. 8), and the base housing 20 has its opening H inclined with respect to the socket body 1. The lamp L is set at the mounting / detaching position of the lamp L by pivoting to the position (FIGS. 1, 6,
8). In this case, when rotating, the shafts 10A, 10B
When the locking portion gets over the locking portions of the shaft holes 26A and 26B, a click feeling is generated each time the locking portion is crossed, and is temporarily fixed at a stage where the locking portion is crossed. According to the illustrated embodiment, this phenomenon occurs at every 45 degrees forming the octagonal shape, and the normal attachment / detachment position in which the opening H of the base accommodating portion is inclined 45 degrees with respect to the socket body 1 (FIG. (See 6, 8)
In addition, even in a state of being inclined by 90 degrees (see FIG. 9), it is temporarily fixed.

Next, the base S of the lamp L is inserted into the base accommodating portion 20 through the opening H at the above-mentioned attaching / detaching position.
To the mounting position shown in FIGS. As described above, in this case as well, the shafts 10A and 10B are locked by the shaft holes 2 when rotating.
By getting over the locking portions of 6A and 26B, a click feeling is generated every time the vehicle gets over, and it is temporarily fixed at the mounting position. On the other hand, the window 24 of the bottom plate 23 of the base accommodation unit 20
The pin P for conduction of the base S exposed from the hole is inserted into the pin insertion hole 7 provided in the base receiving seat 6 of the bottom plate 23 of the socket body 1 with the rotation to the mounting position. Also, locking projections S1, S1 on both side walls of the base S of the lamp L exposed from the pair of slits 22A, 22B of the base housing portion 20.
Are both side walls 3A, 3A of the socket body 1 in the mounting position.
B is locked to the retaining recesses 4A, 4B formed on the front end face of B, so that the lamp is prevented from being detached from the socket even when a force is applied in the detaching direction of the lamp.

FIG. 10 is a view showing a different embodiment of the means for forming a locking portion for locking each other when the shaft and the shaft hole rotate.
Here, a protrusion 31A (31) is formed on the outer periphery of the shaft 30A (30B).
B) (here, a pair is provided at a position of 180 degrees), and the projection 47A on the inner periphery of the shaft hole 46A (46B) into which this shaft can be inserted by deformation.
(47B) is provided (here, a pair is provided at a position of 180 degrees), and a concave portion 48A (48B) into which the above-mentioned protrusion can drop is provided in the middle of this convex portion.

[0016]

The present invention having the above configuration has the following specific effects. The shape of the shaft and the shaft hole of the base receiving portion and the shaft attachment portion of the socket body is not a perfect circle, but is configured such that locking portions are formed to lock each other during rotation, and the rotating portions are moved over these locking portions. As a result, the lamp is temporarily fixed, so that rotation in one direction does not become free at the attaching / detaching position as in the related art. The shape of the shaft and the shaft hole of the base receiving portion and the shaft attachment portion of the socket body is not a perfect circle, but is configured such that locking portions are formed to lock each other during rotation, and the rotating portions are moved over these locking portions. Therefore, when the locking portion is formed by forming a polygonal shape as in the embodiment, for example, it is possible to set a temporary fixing position according to the number of corners, and according to the situation according to the user, Various temporary fixing positions can be selected. Since the locking portion at the time of rotation is provided in the shaft mounting portion itself, which is the center of rotation, the locking portion is forcibly compared to the conventional technology in which the locking portion is provided at a position separated from the shaft mounting portion. Rotation becomes smooth without excessive force in the twisting direction being applied to the mouthpiece accommodating part when getting over.

[Brief description of the drawings]

FIG. 1 is a perspective view of a socket of the present invention at a mounting / detaching position of a lamp.

FIG. 2 is a perspective view of the same mounting position of the lamp.

FIG. 3 is a perspective view of the base housing unit according to the first embodiment;

FIG. 4 is a perspective view of the socket body according to the first embodiment;

FIG. 5 is a side view of the lamp mounting position according to the first embodiment;

FIG. 6 is a side view of the same as the above, showing a mounting / detaching position of a lamp.

FIG. 7 is a side view of the same as the above, showing a mounting position of the lamp;

FIG. 8 is a side view of a mounting / dismounting position of a lamp when the socket of the present invention is used.

FIG. 9 is a side view of the same as the above, showing a mounting / detaching position of a lamp.

FIG. 10 is a side view of a main part of a different embodiment of the socket of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket body 2 Bottom plate (of socket body) 10A shaft 10B shaft 20 Base housing 23 Bottom plate (of base housing) 26A Shaft hole 26B Shaft hole

Claims (4)

[Claims] 1. A conductive pin protruding from a bottom surface,
A base for accommodating a base of a one-base lamp provided with projections for locking on both side walls is rotatably mounted on a socket body so that the base of the base is overlapped with a bottom plate of the socket body. In a socket in which a mounting position and a detachable position where a bottom plate of a base housing is separated from a bottom plate of a socket body by rotation are switched, a shaft attachment portion is composed of a shaft and a shaft hole into which the shaft is inserted. The shaft is made of a material which is not a perfect circle but has an elasticity enough to be able to get over the engaging portion due to mutual deformation when rotated forcibly. Or a socket for a single-base lamp, wherein a shaft hole or both of them are formed. 2. The locking portion is formed by making the outer peripheral shape of the shaft of the shaft attaching portion into a polygonal shape, and making the inner peripheral shape of the shaft hole into which the shaft is inserted into a polygonal shape corresponding to the shape of the shaft. The socket for a single-cap lamp according to claim 1. 3. A projection is provided on the outer periphery of a shaft of the shaft attachment portion, and a projection is provided on an inner periphery of a shaft hole into which the shaft is inserted, the projection being able to get over by deformation, and the projection is provided in the middle of the projection. 2. The socket according to claim 1, wherein the locking portion is formed by providing a concave portion into which the projection can drop. 4. When the bottom plate of the base accommodating portion is superimposed on the bottom plate of the socket body, the base bottom surface is in contact with the surface, and the base receiving seat through which the pin for conduction is inserted into the pin insertion hole provided on the surface. The socket for a one-base lamp according to any one of claims 1 to 3, wherein the base plate is provided on the bottom plate surface of the main body so as to protrude, and the bottom plate of the base accommodating portion is provided with a window through which the base receiving seat is exposed.