JPH09185978A - Lamp socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the imperfect fitting of a lamp. SOLUTION: A housing recess 11 for housing the projecting part of a lamp base is formed in a body 10a constituting a socket main body. A rotation locking spring 30 is arranged so as to be capable of turning in the bottom of the housing recess 11. The rotation locking spring 30 has a pair of spring pieces 32 formed by bending at both ends of an almost round main body 31. An engaging projection 32a is projected on each outer side surface of the spring pieces 32. The engaging projection 32a engages with a recessed and projecting engaging part 17 formed in the inner wall 11a within the housing recess 11 by the rotation of the rotation locking spring 30. When the rotation locking spring 30 is rotated for fitting a lamp, and the engaging projection 32a engages with the recessed and projecting engaging part 17, collision sound is generated. By the collision sound, the correct, perfect fitting of the lamp to a lamp socket is informed to a user, and thereby, imperfect fitting can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp socket.

[0002]

2. Description of the Related Art FIG. 20 shows an example of a conventional lamp socket, and is an exploded perspective view of a lamp socket 60 for a single base, to which a so-called single base lamp 50 is detachably mounted (Actual No. 54-182574). (Practical application Sho 53-82453)
See microfilm). This lamp socket 60
Includes a socket body 61 that holds the lamp base 51, and a plug receiver 62 that is electrically connected to the lamp pin 52 of the lamp base 51.

The plug receiver 62 has a cylindrical cover 64 having a socket 63 into which the lamp pin 52 is inserted, and a socket 6 from the inside.
3, a contactor 66 elastically closed by a coil compression spring 65,
It is composed of a plug main body 67 that holds the end of the coil compression spring 65, and a lead wire 68 inserted in the plug main body 67 is connected to each contact 66, and the plug receiver 62 is attached to the socket main body 61. A pair of protrusions 69 are provided on the side of the cylindrical cover 64 for attachment. In addition, the socket body 61 has a recess 70 for accommodating the lamp base 51, and the plug receiver 6.
2, and a pair of slits 72 in the insertion direction (axial direction) are formed on the inner side of the concave portion 70.
3 is slid and a lateral groove portion 73 is provided continuously with the slit 72, and the protrusion 53 of the lamp base 51 is guided from the slit 72 to the lateral groove portion 73 by rotating the lamp base 51, and the coil compression spring 65 springs. It is designed so that it can be pulled out and locked by force (see FIG. 21).

22 to 24 show a lamp socket 80 for a single-base lamp, which has a structure similar to that of the conventional example shown in FIG. 20 and includes a lamp base 51 of a single-base lamp 50. The protrusions 53 protruding from the side surface are formed in a mountain shape, and the mountain-shaped protrusions 53 are engaged with the valley portions 83a formed on the upper surface of the lateral groove portion 83 of the socket body 81 and having an angle of about 45 degrees. The lamp socket 8
Positioning of the single-ended lamp 50 in a normally mounted state with respect to 0 is performed (see FIG. 24). The shapes and dimensions of the protrusion 53 and the valley 83a are specified in JIS C7709 Annex 1 and the like.

[0005]

However, in the above-mentioned conventional example, when the user mounts the lamp in the lamp socket, there is no way of knowing whether or not the lamp has been mounted correctly, and the lamp is incompletely mounted. Could be
There is a problem that various defects may occur in such an incompletely mounted state.

The present invention has been made in view of the above problems, and an object thereof is to provide a lamp socket capable of preventing incomplete mounting of the lamp.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 is such that a socket main body holding a lamp base detachably mounted and the lamp base are rotated in a predetermined direction. An engaging means for engaging the lamp base with the socket body; and a sounding means for emitting a sound when at least the lamp base is engaged by the engaging means and mounted in the socket body in a normal state. Yes, when the lamp is correctly and completely installed in the lamp socket, sound is emitted by the sounding means, and the sound can inform the user that the lamp is correctly and completely installed in the lamp socket. It is possible to prevent the lamp from being imperfectly attached to the lamp.

According to a second aspect of the present invention, in the first aspect of the present invention, the lamp base is a lamp base of a single base lamp, and a storage recess for storing at least a part of the lamp base is provided in the socket body. A rotation locking spring that is provided, forms a concave-convex engaging portion on the inner wall surface of the accommodation recess, and has an engaging protrusion that engages with the concave-convex engaging portion and that rotates with the lamp base with respect to the socket body. The sound is generated by the engaging projections that are arranged in the storage recesses and that generate a sound when the projections of the concave-convex engaging portions are overcome and engage with the concaves as the rotary locking spring rotates. The user is informed that the lamp is correctly and completely attached to the lamp socket by an impact sound generated when the engaging projection rides over the convex portion of the concave-convex engaging portion and engages with the concave portion. Not only can If projections can inform the user that were also correctly mounted by click feeling generated when the engagement with the recess-projection engaging portion, it is possible to prevent improper insertion of the lamp for the lamp socket.

According to a third aspect of the present invention, in the second aspect of the present invention, the socket body in the vicinity of the storage recess is provided with a cavity portion separated by an inner wall having the concave and convex engaging portion. Not only can the user be informed that the lamp has been correctly and completely installed in the lamp socket by the sound of collision with the inner wall generated when the engaging protrusion engages with the concave portion of the concave-convex engaging portion, but also the inner wall can be prevented by the hollow portion. Is thin, the inner wall is apt to vibrate easily, and the collision sound is more likely to be heard due to the hollow portion, so that the collision sound can be made clear. Further, by providing the hollow portion, the material of the socket body can be reduced, and the weight and cost of the lamp socket can be reduced and the environment can be preserved.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the lamp socket is combined with a lamp having a predetermined wattage, and the lamp base of the lamp that is not a proper combination is rotated in a predetermined direction. Depending on each wattage, a protective wall is provided on the outer peripheral surface of the socket body to prevent incorrect installation of the lamp by interfering with the incorrect installation prevention ribs provided on the outer peripheral surface of the lamp base. The sound generating means is configured by the protection wall that makes a sound by colliding with the erroneous mounting prevention rib when the lamp base of a certain lamp is rotated in a predetermined direction. The collision sound informs the user that the lamp is correctly and completely installed in the lamp socket and prevents the lamp from being imperfectly installed in the lamp socket Bets can be, moreover, the protective wall from the is provided a peripheral surface of the socket body to the mounting side of the lamp can emit a collision sound at a position closer to the user.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the sounding means is constituted by a reversing spring that is rotated substantially by a protrusion protruding from the lamp cap when the lamp cap is rotated. With the sound generated when the reversing spring is almost reversed, the user can be informed that the lamp has been correctly and completely installed in the lamp socket, and the incomplete installation of the lamp in the lamp socket can be prevented. Even when the lamp is removed, the reversing spring makes a substantially reversing operation and emits a sound, which facilitates the work of removing the lamp.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the lamp base is a lamp base of a single base lamp, and a storage recess for storing at least a part of the lamp base is provided in the socket body. Provided, on the bottom of the storage recess,
A step washer having a corrugated step formed in an annular shape centering on the rotation center of the lamp base is provided, and a step wheel metal fitting for sliding rotation on the step seat is provided. It is arranged on the stepped seat with their centers substantially coincident with each other, and one or a plurality of protrusions are provided on the sliding surface side of the stepped wheel fitting so that the sounding means is formed by the stepped seat and the stepped wheel fitting. And the projection of the step metal fitting that slides and rotates on the step with the rotation of the lamp base collides with the wavy step of the step, producing sound,
The collision sound can inform the user that the lamp has been correctly and completely installed in the lamp socket, and can prevent incomplete installation of the lamp in the lamp socket.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. (Embodiment 1) FIG. 2 is an exploded perspective view showing a first embodiment of the present invention. The lamp socket A of the present embodiment
Is a lamp socket to which a single-base fluorescent lamp (hereinafter abbreviated as “lamp”) 1 as shown in FIG. 3 is detachably mounted, but the kind of the lamp is not limited to this, and for example, a straight tube It goes without saying that the technical idea of the present invention can be applied to a lamp socket for a fluorescent lamp of the type. In addition, the lamp 1 used in this embodiment
The lamp base 2 has a substantially hexagonal base 2a having three U-shaped tubes 6 attached to its upper surface, a protrusion 2b protruding from the lower surface of the base 2a, and a periphery of the protrusion 2b. The projection base 2 is provided with four lamp pins 3 protruding downward from the base 2a.
Locking projections 4 each having a substantially triangular side surface are provided on the back side surface of b, and an erroneous mounting prevention rib 5 described later is provided on the peripheral edge of the lower surface of the base 2a. .

As shown in FIG. 2, the lamp socket A is
For example, a socket body 10 formed of a synthetic resin in a substantially cylindrical shape, a contact portion 20 that is housed inside the socket body 10 and is in contact with and electrically connected to the lamp pin 3, respectively, and a pair of spring pieces 31 are formed by an elastic metal plate. It has a rotation locking spring 30 which is formed in a substantially disc shape and which is rotatably disposed inside the socket body 10 like the contact portion 20.

The socket body 10 has a cylindrical body 10a in which a housing recess 11 for accommodating the protrusion 2b of the lamp base 2 is formed in the center, and a bottom surface (lower surface in FIG. 2) of the body 10a. A substantially disk-shaped cover 10b to be attached, a pair of assembling claws 10c standing upright from the peripheral edge of the cover 10b in the coupling direction are respectively provided in rectangular assembling holes 10d formed in the peripheral surface of the body 10a. It is designed to be assembled by engaging and coupling. As shown in FIG. 1, a pair of projection introduction vertical grooves into which a locking projection 4 projecting from a projection 2b of the lamp base 2 is introduced and guided on the inner wall of the storage recess 11 of the body 10. 12 is provided, and a projection engaging lateral groove 13 that is continuous from the lower end of the projection introducing vertical groove 12 in the lateral direction is provided.

Further, four insertion holes 14 corresponding to the lamp pins 3 are provided on the upper outer peripheral surface of the body 10a,
Each of these insertion holes 14 is provided along one circumference and is formed as an arc-shaped elongated hole along the same circumference. Then, the contact portions 20 are attached in the socket body 10 so as to correspond to the respective insertion holes 14. The contact portion 20 is composed of a cylindrical terminal pin 21 and a conductive plate 22 attached to one end of the terminal pin 21. Conductive plate 22
Has a contact piece 22a which is substantially U-shaped and is brought into contact with the tip of the lamp pin 3 inserted through the insertion hole 14. Further, the terminal pin 21 is adapted to be inserted into the through hole 15a formed in the mounting base 15 provided on the upper surface of the cover 10b and mounted on the mounting base 15, and is composed of the terminal pin 21 and the conductive plate 22. Power is supplied to the lamp pin 3 via the contact portion 20.

On the other hand, the rotation locking spring 30 is formed by processing a metal plate having elasticity, and has a substantially circular main body 31 and a pair of springs which are bent upward to face the peripheral edge of the main body 31. And a piece 32. An insertion hole 31a is bored at substantially the center of the main body 31, and a protrusion 16 projecting from substantially the center of the upper surface of the cover 10b is inserted into the insertion hole 31a to rotate the rotation locking spring 30 with respect to the cover 10b. Is rotatably arranged. Around the insertion hole 31a, a pair of biasing spring pieces 33 are formed so as to cut upward. This biasing spring piece 33 is a protrusion 2b of the lamp base 2 inserted into the storage recess 11 of the socket body 10.
The lamp base 2 is elastically urged upward (in the opposite mounting direction) by the elastic force.

The engaging projection 3 is formed on the outer surface of the spring piece 32.
2a is projectingly provided, and the engaging projection 32a is provided with the storage recess 11 of the body 10a when the rotary locking spring 30 rotates with respect to the cover 10b as shown in FIGS.
It engages with the concave-convex engaging portion 17 formed on the inner wall 11a. As shown in FIG. 1, a flange 11b is provided at the lower end edge of the storage recess 11 of the body 10a, and the rotation locking spring 30 is rotatably provided between the flange 11b and the cover 10b. With the body 10a and the cover 10b assembled, the rotation locking spring 30 is provided by the collar portion 11b.
We are trying to prevent it from slipping out.

When mounting the lamp 1 in the lamp socket A, first, the locking projection 4 of the lamp base 2 is aligned with the projection introducing vertical groove 18 and the lamp base 2 is inserted.
The projection 2b of the lamp socket A is inserted into the housing recess 11 of the lamp socket A, the lamp pin 3 is inserted into the insertion hole 14 of the lamp socket A, and the lamp base 2 is slightly pushed toward the lamp socket A while the lamp base 2 is moved in a predetermined direction. (Lamp 1
The locking projection 4 is engaged with the projection engaging lateral groove 13 by fixing the lamp base 2 to the lamp socket A by rotating the lamp base 2 clockwise. is there. That is, in the present embodiment, the lamp base 2
Locking projections 4 and projection engagement lateral grooves 1 of the lamp socket A
3, the engaging means is constituted. The insertion hole 14 is a long hole, and the lamp pin 3 moves laterally in the insertion hole 14 as the lamp base 2 rotates, and contacts the conductive plate 22 of the contact portion 20 inside the lamp socket A. To do. Further, in the mounted state, the lamp base 2 is elastically biased upward (counter-insertion direction) by the biasing spring piece 33 of the rotation locking spring 30, so that the locking projection 4 and the projection engaging lateral groove 13 are formed. The engagement between the locking projection 4 and the projection engaging lateral groove 13 is prevented from being unintentionally disengaged.

Here, since the biasing spring piece 33 of the rotary locking spring 30 rotatably arranged in the storage recess 11 is pressed against the protruding portion 2b of the lamp base 2, 5 (a)
As shown in (e) to (e), the lamp base 2 rotates together with the socket body 10 as the lamp base 2 rotates. As shown in FIG. 5A, in the non-mounted state of the lamp 1 and the state in which the protrusion 2b is only inserted into the storage recess 11 and is not rotated, the spring piece of the rotation locking spring 30. The engaging projection 32 a provided on the spring 32 has a spring piece 32.
Is urged outward by the resilience of the storage recess 11, and engages with the first recess 17a ₁ of the concave-convex engaging portion 17 formed on the inner wall 11a of the storage recess 11. From this state, when the rotation locking spring 30 rotates by rotating the lamp 1 as shown in FIGS. 3B to 3E, the engagement protrusion 32a is engaged with the first recess 17a _1. It comes off and goes over the convex portion 17b, and eventually the second concave portion 17b as shown in FIGS.
will engage a ₂ . While the engaging projection 32a is about to get over the convex portion 17b, the spring piece 32 is bent inward as shown by the dotted line in FIG. 7, so that the engaging projection 32a gets over the convex portion 17b. When it engages with the second concave portion 17a ₂ , it collides with the inner wall 11a and produces a sound. That is, since the engaging protrusion 32a is adapted to engage with the second recess 17a ₂ when the lamp base 2 is correctly and completely attached to the lamp socket A, the user can hear the collision sound (click sound) by the user. Can be informed that the lamp base 2 has been correctly attached to the lamp socket A, and moreover, due to the click feeling generated when the engaging projection 32a engages with the concave-convex engaging portion 17,
It is possible to inform the user that the lamp base 2 is correctly mounted in the lamp socket A, and prevent the lamp base 2 (that is, the lamp 1) from being imperfectly mounted. As a result, it is possible to prevent various problems due to incomplete mounting of the lamp 1, such as dropping of the lamp 1 from the lamp socket A and occurrence of abnormal heat generation and ignition.

Further, in this embodiment, as shown in FIG. 4, the body 10a is provided with a cavity 18 separated by the inner wall 11a of the storage recess 11. The hollow portion 18 reduces the thickness of the inner wall 11a, so that the engagement protrusion 32a is formed in the second concave portion 1 of the concave-convex engagement portion 17.
When colliding with the inner wall 11a engages the 7a _2, the inner wall 11
There is an advantage that a is easily vibrated, the collision sound is easily heard by the hollow portion 18, and the collision sound is made clear so that the user can be clearly notified whether or not the collision sound is properly mounted.

Further, in this embodiment, the socket body 10
Protective wall 19 ₁ , 1 consisting of a pair of ridges on the periphery of the upper surface of the
9 ₂ is provided substantially to be rotated about the center of the socket body 10. As shown in FIG. 8, erroneous mounting preventing ribs 5 projecting from the lamp base 2 are located between both ends of these protective walls 19 ₁ and 19 ₂ . That is, the erroneous mounting prevention ribs 5 are provided at different positions depending on the wattage of the lamp 1, and can be mounted only on the lamp socket A of a proper combination that matches the wattage of the lamp 1, and other than that. For the lamps of different wattages, that is, for the lamps that are not a proper combination, the protection wall 19 interferes with the ribs 5 for preventing the wrong attachment, thereby preventing the lamps that are not a proper combination from being mistakenly attached. Here, when the lamp 1 is rotated and mounted in the lamp socket A, the erroneous mounting prevention rib 5 is provided with the protective walls 19 ₁ , 1
Since a sound is emitted by colliding with the end of 9 _2, the user can be informed by the sound of the collision that the lamp base 2 was correctly mounted in the lamp socket A, and the lamp base 2 (that is, the lamp 1). Can be prevented from being installed imperfectly. Moreover, since the protection walls 19 ₁ and 19 ₂ are provided on the upper surface (outer peripheral surface) of the socket body 10, it is possible to emit a collision sound at a position close to the user, and it is possible for the user to determine whether or not the device is properly mounted. It has the advantage that it can be clearly announced. The erroneous mounting prevention rib 5 may be thinned in order to make the impact sound clear. In addition, the protection walls 19 ₁ and 19 that collide with the rib 5 for preventing incorrect mounting
The strength of the end portions of the protection walls 19 ₁ and 19 ₂ is improved by forming an extension portion 19a that extends the end portion of ₂ to the outside.
_It prevents ₁ and 19 _{2 from} being damaged.

By the way, the rotation locking spring 30 can be made of synthetic resin. However, by forming the rotation locking spring 30 of metal as in the present embodiment, the slip between the cover 10b made of synthetic resin is made of synthetic resin. This is better than the case of the mutual rotation, and the rotation locking spring 30 can be smoothly rotated, and the strength of the rotation locking spring 30 can be increased. In addition, the cavity 18 is formed in the socket body 10.
By providing the lamp body, it is possible to reduce the resin material forming the socket body 10, and as a result, the lamp socket A
It is possible to reduce the weight, reduce the cost, and protect the environment. Moreover, the inner wall 11 of the storage recess 11 is formed by the cavity 18.
Not only is the thickness of a reduced, but the peripheral wall of the socket body 10 is also reduced in thickness, so sink marks are less likely to occur on the surface of the socket body 10 due to resin molding, and the appearance is improved.

In the present embodiment, the body 10a
The cover 10b and the cover 10b are assembled by engaging the assembling claw 10c and the assembling hole 10d with each other. For example, as shown in FIG. Good. (Embodiment 2) FIG. 10 is an exploded perspective view showing a second embodiment of the present invention. The basic configuration of this embodiment is the same as that of the first embodiment.
The same parts are denoted by the same reference numerals and the description thereof will be omitted.

14 (a) to 14 (c) are views showing how the rotation locking spring 30 rotates with the rotation of the lamp 1 when mounted in the first embodiment. In the first embodiment, when the tip of the convex portion 17b of the concave-convex engaging portion 17 is formed to be slightly flat, the rotation locking spring 3 as shown in FIG.
The zero engagement protrusion 32a may be stationary while riding on the protrusion 17b. In this case, it is possible to turn on the lamp 1 if the lamp pin 3 and the contact portion 20 of the lamp socket A are in contact with each other, but the engaging projection 32a is not connected to the first concave portion 17a ₁ by an external force such as vibration. There is also a possibility that the lamp base 2 may move away from the lamp socket A and come off. Therefore, as shown in FIG. 15, by making the tip of the convex portion 17b of the concave-convex engaging portion 17 round, it is possible to prevent the engaging protrusion 32a from resting on the convex portion 17b as described above. It can be prevented. However, in the above configuration, the inclination of the surface of the inner wall 11a continuing from the convex portion 17b to the second concave portion 17a ₂ becomes gradual, so that the engaging protrusion 32a passes over the convex portion 17b to reach the second concave portion 17a ₂ . There are disadvantages that the collision noise at the time of engagement becomes small and the click feeling becomes weak.

Therefore, in the present embodiment, the erroneous mounting prevention rib 5 protruding from the lamp base 2 by the rotation of the lamp base 2 is provided.
The reversing spring 40, which is substantially reversed by
When the reversing spring 40 performs a substantially reversing operation, it collides with the side surface of the projection introducing vertical groove 12 to generate a collision sound (click sound). The other configurations are the same as those in the first embodiment.

The reversing spring 40 is formed of a metal plate in a rectangular shape, and one end portion in the longitudinal direction is provided with an operating piece 41 having notches on both sides and extending in the longitudinal direction. Then, as shown in FIG. 11, the reversing spring 40 is installed inside the projection introducing vertical groove 12 such that the operating piece 41 projects toward the upper surface side of the socket body 10. Then, as shown in FIG. 12, the lamp 1 is connected to the lamp socket A.
When the lamp base 2 is attached to the lamp socket A, the rib 5 for preventing erroneous mounting of the lamp base 2 is located between the ends of the protection walls 19 ₁ and 19 ₂ , and when the lamp base 2 is rotated with respect to the lamp socket A,
As shown in FIG. 13, the erroneous mounting prevention rib 5 has the reversing spring 40.
When the operating piece 41 is pushed, the operating piece 41 reverses beyond the deadline of the reversing spring 40, and the reversing spring 40 collides with the side surface of the projection introducing vertical groove 12 and emits a collision sound. However,
If the reversing spring 40 is completely reversed, it cannot be reversed again unless an external force is applied in the opposite direction. Therefore, in the present embodiment, the reversing spring 40 is not completely reversed. The length dimension of the reversing spring 40 is set with respect to the width of the projection introducing vertical groove 12 so as to prevent it from colliding with the side surface of the projection introducing vertical groove 12 in the process of and being prevented from shifting to a completely inverted state. I am doing it. Therefore, if the lamp 1 is rotated in the opposite direction to remove it, the force applied to the operating piece 41 by the erroneous mounting prevention rib 5 disappears, and the reversing spring 40 is shown in FIG. It returns to the original state, and when it returns, it collides with the side surface of the projection introducing vertical groove 12 and emits a collision sound.

In this embodiment, since the reversing spring 40 is provided which is rotated substantially by the rotation of the lamp base 2 by the erroneous mounting preventing rib 5 projecting from the lamp base 2, the reversing spring 40 is substantially reversible. The generated collision sound can inform the user that the lamp 1 is correctly and completely attached to the lamp socket A, and prevent the lamp 1 from being incompletely attached to the lamp socket A.
Even when the lamp 1 is removed, the reversing spring 40 makes a substantially reversing operation and produces a collision noise, which has an advantage that the work of removing the lamp 1 becomes easy.

(Embodiment 3) FIG. 16 is a partially broken exploded perspective view showing a third embodiment of the present invention. The basic configuration of this embodiment is the same as that of the first embodiment, the common portions are denoted by the same reference numerals, and the description thereof will be omitted. Only the characteristic portions of this embodiment will be described.

In the present embodiment, a cylindrical column 42 is erected at approximately the center of the cover 10b of the socket body 10, and a sawtooth step 43a is formed in an annular shape around the column 42 as the center. In addition to providing the stepped seat 43, a stepped metal fitting 44 in the form of a metal disk is provided, which slides on the upper surface of the stepped seat 43 around the column 42. An insertion hole 45 through which the support column 42 is inserted is provided in the center of the step metal fitting 44, and a large number of hook holes 4 are provided around the insertion hole 45.
6 are arranged in a ring. In addition, the cover 1 is provided at a position symmetrical with respect to the insertion hole 45 along the peripheral portion of the stepped wheel bracket 44.
A pair of protrusions 44a protruding toward the 0b side is formed. Then, the stepped wheel fitting 44 is interposed between the cover 10b and the rotation locking spring 30, as shown in FIG. In addition,
The ratchet pawl 34 provided on the rotation locking spring 30 is inserted into the hooking hole 46 of the stepped wheel fitting 44 so as to be movable back and forth.

The pair of protrusions 44a provided on the peripheral portion of the stepped wheel fitting 44 are formed so as to have substantially the same inclination angle as the inclined surface of the stepped step 43a of the stepped seat 43, as shown in FIG. Further, as shown in FIG. 19, the ratchet pawl 34 provided on the rotation locking spring 30 is tilted in the direction opposite to the tilt direction of the protrusion 44 a of the step gear fitting 44. When the lamp 1 (lamp base 2) is rotated clockwise when viewed from above in order to mount the lamp 1 in the lamp socket A,
As shown in FIGS. 18 and 19, the ratchet pawl 34 of the rotary locking spring 30 is inserted into the hook hole 46 of the step gear fitting 44, and the ratchet pawl 34 moves to the left in FIG.
By being pushed by, the stepped wheel bracket 44 rotates integrally with the rotation locking spring 30. As a result, the protrusion 44a of the step wheel bracket 44 that slides and rotates on the stepped seat 43 moves as shown in FIG.
By moving to the left in, the vehicle overrides one step 43a of the step seat 43 and collides with the adjacent step 43a, and a collision sound is generated and a click feeling is generated.

On the contrary, when the lamp 1 is rotated counterclockwise to remove it from the lamp socket A, as shown in FIG.
As shown in FIG. 8, the protrusion 44 a of the step wheel bracket 44 is
Since it cannot be moved to the right in the drawing by being blocked by the step 43a of the step locking gear 30, even if the rotation locking spring 30 rotates,
4 does not rotate. Therefore, as shown in FIG. 19, the ratchet pawl 34 of the rotation locking spring 30 moves to the right in the figure,
It comes out from the hooking hole 46 that has been inserted until then, and is inserted into the adjacent hooking hole 46. At the time of this insertion, the peripheral edge of the hooking hole 46 collides with the ratchet pawl 34, a collision sound is generated and a click feeling is generated. .

Here, the number of steps 43a of the stepped seat 43 and the number of hooking holes 46 of the step wheel bracket 44 are determined by the following method in this embodiment. That is, the lamp 1
Is divided into 360 ° by an angle (about 18 ° in the present embodiment) to be rotated to mount the lamp in the lamp socket A, and a quotient is obtained by rounding off the decimal point. An integer of about 1 to 5 (an even number is preferable) for the quotient. Is added. For example, when the angle is 18 °, 360 ° ÷ 18 ° ≈20,
22 as 20 + 2 = 22, or 20 + 4 = 24
As a result, 24 steps 43a and hook holes 46 are provided. In this case, the pitch of the step 43a and the hooking hole 46 is 360 °.
Since ÷ 22 ≈16.4 °, 360 ° ÷ 24 = 15 °, the allowance of 1.6 ° and 3 ° with respect to the angle (18 °) at which the lamp 1 is completely installed in the lamp socket A, respectively. Occurs, and the impact sound is emitted at a position of about 1.6 ° (or 3 °) before the complete mounting.
The reason why such a space is provided is that the processing accuracy of the step seat 43, the step wheel metal fitting 44, the rotation locking spring 30 and the like is taken into consideration. Therefore, in reality, an impact sound (click sound) and a click feeling are generated slightly before the lamp 1 is completely mounted in the lamp socket A and slightly after the engagement between the lamp 1 and the lamp socket A is disengaged. become. As a result, the user can easily perform correct mounting and dismounting due to impact sound and click feeling,
Incomplete mounting of the lamp 1 in the lamp socket A can be prevented.

The step 43a of the stepped seat 43 and the step car bracket 4
The inclination directions of the projections 44a of No. 4 and the ratchet pawl 34 of the rotation locking spring 30 may be opposite to those of the present embodiment. In that case, contrary to the above description, the ratchet pawl 34 at the time of mounting is mounted. And the periphery of the hooking hole 46 collide with each other to generate a collision sound, and the protrusion 44a and the step 43a collide with each other during removal to generate a collision sound.

[0035]

According to the first aspect of the present invention, the socket main body holding the lamp base detachably mounted and the engagement for engaging the lamp base with the socket main body by rotating the lamp base in a predetermined direction. And a sounding means for emitting a sound when at least the lamp base is engaged by the engaging means and mounted in the socket body in a proper state, so that the lamp is correctly and completely mounted in the lamp socket. A sound is emitted by the sounding means, and the sound can inform the user that the lamp has been correctly and completely installed in the lamp socket, and can prevent imperfect installation of the lamp in the lamp socket. Prevents various problems caused by incomplete installation of the lamp, such as dropping of the lamp from the lamp socket, abnormal heat generation, and ignition. That there is an effect that it is.

According to a second aspect of the present invention, the lamp base is a lamp base of a single-base lamp, and a storage recess for storing at least a part of the lamp base is provided in the socket body, and the storage recess is A concavo-convex engaging portion is formed on the inner wall surface, and a rotation locking spring that has an engaging projection that engages with the concavo-convex engaging portion and rotates together with the lamp base with respect to the socket body is provided in the accommodation recess. Since the sounding means is composed of the engaging projections that generate a sound when riding over the convex portion of the concave-convex engaging portion and engaging with the concave portion as the rotary locking spring rotates, Not only can the user be informed that the lamp has been correctly and completely installed in the lamp socket by the impact sound generated when the engaging projection rides over the convex portion of the concave-convex engaging portion and engages with the concave portion, but also the engaging protrusion Engages with the uneven engaging portion Also can inform that it has been properly mounted to the user by a click feeling generated, there is an effect that incorrect insertion of the lamp for the lamp socket can be prevented.

According to the third aspect of the present invention, the socket body in the vicinity of the storage recess is provided with the hollow portion separated by the inner wall having the concave-convex engaging portion. Not only can the user be informed that the lamp has been correctly and completely installed in the lamp socket by the sound of the collision with the inner wall generated when engaging the recess, but also the hollow portion reduces the thickness of the inner wall and the inner wall It becomes easier to vibrate and the collision sound is more likely to be heard due to the hollow part, and by making the collision sound clearer, it is possible to clearly inform the user whether or not it is properly mounted, and by providing the hollow part. The material of the socket body is small,
There are effects that the weight of the lamp socket can be reduced, the cost can be reduced, and the environment can be preserved.

According to a fourth aspect of the present invention, there is provided a lamp socket which is combined with a lamp having a predetermined wattage, and when the lamp base of the lamp which is not a proper combination is rotated in a predetermined direction, the lamp is responsive to each wattage. A protective wall is provided on the outer peripheral surface of the socket main body to prevent incorrect mounting of a lamp that is not a proper combination by interfering with a rib for preventing wrong mounting provided on the outer peripheral surface of the base, and the lamp base of a lamp that is a proper combination is specified. Since the sounding means is constituted by the protection wall that makes a sound by colliding with the erroneous mounting prevention rib when rotated in the direction, the lamp is lit in the lamp socket by the collision sound of the erroneous mounting prevention rib and the protection wall. It can inform the user that it is correctly and completely installed, and prevent incomplete installation of the lamp in the lamp socket. Since it is provided on the outer peripheral surface of the housing and on the side where the lamp is mounted, a collision sound can be emitted at a position close to the user, and the user can be clearly informed whether or not the lamp is correctly mounted. There is an effect.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the sounding means is constituted by a reversing spring which is rotated substantially by a projection piece projecting from the lamp base by the rotation of the lamp base. It is possible to prevent the imperfect installation of the lamp in the lamp socket by notifying the user that the lamp has been correctly and completely installed in the lamp socket by the sound generated when the inversion spring is substantially inverted, and
Even when the lamp is removed, the reversing spring makes a substantially reversing operation and emits a sound, which has the effect of facilitating the work of removing the lamp.

According to a sixth aspect of the present invention, the lamp base is a lamp base of a single-base lamp, and a storage recess for accommodating at least a part of the lamp base is provided in the socket body, and the storage recess is The bottom surface is provided with a stepped seat having a ring-shaped stepped portion centered on the rotation center of the lamp base, and a step wheel metal fitting which slides and rotates on the stepped seat is provided with the slide rotation center and the The stepped seat and the stepped metal fitting are arranged on the stepped seat so that the centers of the stepped seats are substantially aligned with each other, and one or more protrusions are provided on the sliding surface side of the stepped wheel fitting. Since the sounding means is configured, a sound is generated by the protrusion of the step wheel metal fitting that slides and rotates on the step seat as the lamp base rotates and collides with the wavy step of the step seat. It can inform the user that the lamp socket is correctly and completely seated. There is an effect that incorrect insertion of the lamp for the lamp socket can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view in which a main part of a first embodiment is partially broken.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a perspective view showing the same lamp and a single-base lamp.

FIG. 4 is a bottom view of the same cover with the cover removed.

5A to 5E are explanatory views for explaining the operation of the same.

FIG. 6 is a partially cutaway side view of the above.

FIG. 7 is a side sectional view showing a main part of the above.

FIG. 8 is a top view showing the same as above.

FIG. 9 is an exploded perspective view showing another configuration of the above.

FIG. 10 is an exploded perspective view showing a second embodiment.

FIG. 11 is a perspective view showing the same lamp and a single-ended lamp.

12A and 12B are explanatory views for explaining the operation of the same.

FIGS. 13A and 13B are explanatory diagrams for explaining the operation of the above.

14 (a) to 14 (c) are explanatory views for explaining the operation of the same.

15 (a) and 15 (b) are explanatory views for explaining the operation of the same.

FIG. 16 is an exploded perspective view showing a third embodiment.

FIG. 17 is a side sectional view showing the same as above.

FIG. 18 is an explanatory diagram for explaining the above operation.

FIG. 19 is an explanatory diagram for explaining the above operation.

FIG. 20 is an exploded perspective view showing a conventional example and a single base lamp.

21 (a) and 21 (b) are explanatory views for explaining the operation of the same.

FIG. 22 is a perspective view showing another conventional example and a single base lamp.

FIG. 23 is a side sectional view of the above.

FIG. 24 is a cross-sectional view of an essential part of the above.

[Explanation of symbols]

 A lamp socket 10 socket body 10a body 10b cover 11 storage recess 17 concave-convex engagement part 30 rotation locking spring 32 spring piece 32a engagement protrusion

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Tomoyuki Ono 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (6)

[Claims] 1. A socket main body that holds a lamp base that is detachably mounted, engagement means that engages the lamp base with the socket main body by rotating the lamp base in a predetermined direction, and at least a lamp base. A lamp socket, comprising: a sounding unit that emits a sound when engaged by the engaging unit and mounted in a normal state in the socket body. 2. The lamp base is a lamp base of a single-base lamp, wherein a housing recess for housing at least a part of the lamp base is provided in the socket body, and an uneven wall is formed on an inner wall surface of the housing recess. A rotary locking spring that forms a mating portion and that has an engaging protrusion that engages with the concave-convex engaging portion and that rotates together with the lamp base with respect to the socket body, is disposed in the storage recess; 2. The sounding means is constituted by the engaging projections that generate a sound when overcoming the convex portion of the concave-convex engaging portion and engaging with the concave portion as the rotary locking spring rotates. The indicated lamp socket. 3. The lamp socket according to claim 2, wherein the socket body in the vicinity of the storage recess is provided with a cavity portion separated by an inner wall in which the concave and convex engaging portion is formed. 4. A lamp socket to be combined with a lamp having a predetermined wattage, wherein when the lamp base of a lamp that is not a proper combination is rotated in a predetermined direction, the lamp base is attached to the outer peripheral surface according to each wattage. A protective wall was installed on the outer peripheral surface of the socket main body to prevent incorrect mounting of a lamp that is not a proper combination by interfering with a rib for preventing a wrong mounting, and the lamp cap of the regular combination lamp was rotated in a predetermined direction. 2. The lamp socket according to claim 1, wherein the sounding means is constituted by the protection wall which sometimes collides with the erroneous mounting prevention rib and emits a sound. 5. The lamp socket according to claim 1, wherein the sounding means is constituted by a reversing spring that is substantially reversed by a protrusion protruding from the lamp cap when the lamp cap is rotated. 6. The lamp base is a lamp base of a single-base lamp, and a storage recess for accommodating at least a part of the lamp base is provided in the socket body, and a wavy shape is formed on a bottom surface of the storage recess. A step washer is provided in which a step is formed in an annular shape centering on the rotation center of the lamp base, and a step wheel metal fitting that slides and rotates on the step is provided with a center of the sliding rotation and the center of the step. It is arranged on the stepped seat in a substantially coincident manner, and one or a plurality of projections are projected on the sliding surface side of the stepped wheel fitting, and the stepping seat and the stepped wheel fitting constitute the sounding means. The lamp socket according to claim 1, wherein: