JP4195649B2 - Lighting socket - Google Patents

Description

  The present invention mainly relates to an illuminating lamp socket capable of supporting a fluorescent tube in a portable lighting fixture firmly and stably without being shaken.

Conventionally, when a fluorescent tube is used as a lamp of a lighting fixture, a fluorescent tube socket for supporting the lamp pin by inserting the lamp pin into electrical contact is generally prepared. A pair of insertion holes provided with electrodes are formed in the back so that the lamp pins are inserted into the front surface of the socket-shaped socket body. However, such a socket body, to be used as a socket in the luminaire portable for fluorescent tubes and lamps, an external impact when treated in portable mode, not withstand other vibration, also the contact Since there may be a non-energized state due to a defect, a protective cylinder part with a slightly larger diameter than the fluorescent tube is integrally attached to the front of the socket body to prevent them from being placed in this protective cylinder part. A rubber packing material such as an O-ring for buffering is provided between the end of the fluorescent tube and the base at the end of the fluorescent tube.

  However, this rubber packing material is worn out due to heat generated when the fluorescent tube is turned on, deterioration due to long-term use, etc., and must be replaced frequently, and maintenance is troublesome, and the protective cylinder is cylindrical. Therefore, it is troublesome to insert the cap portion of the fluorescent tube into the protective cylinder. In addition, there is a risk that the rubber packing material may be lost when the fluorescent tube is replaced, and the rubber packing material is deteriorated and loses its elasticity due to ultraviolet rays from the fluorescent tube. It is assumed that the rubber packing material is inserted into the protective cylinder with the rubber packing material fitted to the part, but at this time, the rubber packing material itself is twisted to cause insertion into the protective cylinder so that the fluorescent tube is pulled out. In some cases, the contact force may be applied to promote poor contact.

In order to solve this problem, for example, as disclosed in Patent Document 1, there is one in which a protrusion having an insertion notch is provided on the front surface of the socket body. However, this prevents electric shock due to contact with the lamp pin when attaching or detaching the fluorescent tube, does not impair attachment / detachment with the protruding part, makes it difficult for dust to enter the current carrying part, and corresponds to a compatible lamp size It is provided for the purpose of allowing the base part to be held, and does not hold the base part firmly.
Japanese Patent Laid-Open No. 10-208833

  As described above, in the case of the cylindrical protective cylinder portion in the conventional structure and the rubber packing material interposed therein, there is troublesome handling, and in the case of the protrusion portion having the insertion notch, it is supported. This does not necessarily correspond to the size of the base of the fluorescent tube to be used, and in particular, does not realize a firm support state of the fluorescent tube in a portable lighting fixture.

  Therefore, the present invention was created in view of the conventional circumstances as described above, and in a portable lighting fixture mainly using a small-sized fluorescent tube in a straight tube form as a lamp, the fluorescent tube is not rattled. Holds firmly, has excellent durability against external impacts, vibrations, etc., has a stable and reliable support state, is easy to attach and detach, and does not deteriorate with long-term use, and can be used for a long time As described above, an object of the present invention is to provide an illumination lamp socket that is suitable for use in a portable illumination device that uses a fluorescent tube as a lamp.

In order to solve the above-described problem, in the present invention, in a socket for an illuminating lamp L in a portable luminaire using an illuminating lamp L such as a fluorescent tube as an illumination source, a tube having a power supply terminal 2 therein. The end portion of the illuminating lamp L is held by the front blocking section 13 in which the electrode insertion section 14 is opened so that the electrode terminal P of the illuminating lamp L is inserted into the power terminal 2. A grip body 20 having a support opening formed on the lateral side is integrally provided.
The grip body 20 is integrally connected to the front closing portion 13 of the socket body 1 by a base portion, and the left and right curved portions are formed as support openings in which the side portion of the socket body 1 is opened and closed elastically. as those exhibiting substantially C-shaped when viewed from the front by providing a clamping Jihen 21, further, the inner circumference of the grip member 20 is slightly smaller than the outside diameter of the insertion portion of the lamp L In addition, the center position of the illuminating lamp L supported in the grip body 20 can be configured so as to be closer to the support opening side than the center position of the grip body 20.
An insertion guide slit 15 that communicates with each of the pair of electrode insertion portions 14 in the front blocking portion 13 of the socket body 1 can be formed in a notch groove shape.
In addition, the power terminal 2 is connected to the base 2A to which the power cord 3 is connected via the fixing part 2B fixedly supported by the supporting part 5 provided in the socket body 1, and the electrode terminal P in each of the electrode insertion parts 14 is connected. The contact portion 2C that is elastically urged toward the opening side of the electrode insertion portion 14 by being provided with an engagement portion 2D that elastically retracts to the outer side of the socket body 1 by insertion and engages the electrode terminal P. Can be configured such that the illuminating lamp L is elastically biased toward the support opening side of the socket body 1 by the contact portion 2C.

In the illuminating lamp socket according to the present invention configured as described above, the grip body 20 provided on the front surface of the socket body 1 can stably insert the inserted illuminating lamp L without requiring any other member. The electrode terminal P is securely inserted into and contacted with the power terminal 2 in the socket body 1 to stabilize the electrical connection. For example, the portable terminal is dropped due to external impact, vibration, etc. I won't let you.
The grip body 20 does not support the portion of the illuminating lamp L that radiates ultraviolet rays, is not deteriorated by the radiating ultraviolet rays, and stably supports the illuminating lamp L over a long period of time. Since the position is positioned closer to the support opening than the center position of the grip body 20, the gripping state by the left and right clamping pieces 21 is ensured, and further, the contact failure of the electrode terminal P to the power supply terminal 2 and the like. To prevent.
The pair of electrode insertion portions 14 provided in the front blocking portion 13 in the socket body 1 is communicated from the outside of the socket body 1 by a pair of insertion guide slits 15 communicating with each other, so that the illuminating lamp L to be inserted is Each of the power terminals 2 is guided by the pair of electrode terminals P and brought into contact with each power terminal 2. Further, even if a twisting force is applied to the illuminating lamp L after supporting the insertion, the illuminating lamp L is not separated from the socket main body 1 and dropped off due to being held by the grip body 20.
The power supply terminal 2 disposed in each of the electrode insertion portions 14 has an impact generated when the contact portion 2C is forcibly retracted outwardly by the electrode terminals P guided and inserted through the insertion guide slits 15 respectively. The engaging portion 2D is reliably brought into contact with the electrode terminal P by the action and prevents a contact failure.

  According to the present invention configured as described above, in a portable illuminator using an illuminating lamp L as a lamp, such as a small-diameter fluorescent tube mainly in a straight tube form, a grip body for gripping the end of the illuminating lamp L 20, the lighting lamp L is firmly held without rattling, and it has a stable and reliable support state withstands external shocks, vibrations, etc., and does not cause poor electrical contact. In addition to being easy to attach and detach the illuminating lamp L, the lamp can be used over a long period of time without being deteriorated by long-term use.

  Further, the grip body 20 provided on the front surface of the socket body 1 has a substantially C-shape when viewed from the front side where the support opening is located on the side, and therefore, the insertion guide slit 15 positioned corresponding to the support opening position. Thus, the electrode terminal P can be inserted into the power supply terminal 2 at the same time, so that the illuminating lamp L can be detached from the side of the socket body 1 directly from the side. In addition, the insertion guide slits 15 are individually communicated with the pair of electrode insertion portions 14, and the width of the support opening is substantially equal to the width between the outer sides of the left and right insertion guide slits 15. Each of the electrode terminals P is inserted into each of the insertion guide slits 15 to prevent the pair of electrode terminals P of the illuminating lamp L from being inserted into one of the electrode insertion portions 14, thereby realizing reliable electrical contact. It is.

  Further, the illumination lamp L can be supported by inserting the illumination lamp L from the front of the socket body 1 on the electrode terminal P side into each of the hole-shaped electrode insertion sections 14 opened in pairs in the front blocking section 13. The configuration, the detachment and the like in various forms are possible regardless of the side or the front with respect to the main body 1. The pair of electrode terminals P are brought into contact with and supported by the pair of electrode insertion portions 14, so that the end portion of the illumination lamp L is supported by the grip body 20, and the illumination lamp L Even if a torsional force from the outside is applied, the illuminating lamp L is not dropped from the socket body 1.

  Furthermore, since the grip body 20 inserts and supports, for example, a base portion of the illuminating lamp L, ultraviolet rays or the like emitted from the illuminating lamp L do not directly hit, and there is no deterioration due to this, and a conventional rubber packing material is not used. Since there is no need to interpose another member that may be deteriorated, it can be used stably over a long period of time without fear of loss.

In particular, since the center position of the illuminating lamp L supported by the grip body 20 is closer to the support opening side of the grip body 20 than the center position of the grip body 20, the left and right holding pieces that open and close elastically. 21, the illuminating lamp L is pressed against the base side, and the illuminating lamp L is supported in a more stable state, and accordingly, the electrode terminal P can be reliably brought into contact with the power supply terminal 2 inside the socket body 1. is there.

  Further, in the socket main body 1, the power supply terminal 2 provided with the contact portion 2 </ b> C that is retracted to the outer side of the socket main body 1 with the insertion of the electrode terminal P is connected to the engaging portion by the elastic force generated by the retraction. The 2D comes into contact with the electrode terminal P with certainty, and the electrical contact is further ensured.

  Note that the reference numerals added in the means for solving the above-described problems and the effects of the invention are given for easy reference to the parts showing the components shown in the drawings. The present invention is not limited to the structure / shape indicated by the reference numeral.

  The best mode for carrying out the present invention will be described below with reference to the drawings. Reference numeral 1 shown in the drawing is, for example, oriented toward each end of the illuminating lamp base B in a portable luminaire not shown. It is the socket main body in the illuminating lamp socket which is united and attached. The socket body 1 includes a power supply terminal 2 connected to a power supply supplied from the outside, and an end of an illuminating lamp L such as a straight tube type fluorescent tube electrically inserted and connected to the power supply terminal 2. A grip body 20 that grips a portion, for example, a base portion thereof, is provided in a protruding shape on the front surface to form a cylindrical shape.

  The socket body 1 itself has a closed front surface and is formed in a hollow shape. The socket body 1 itself has a support portion 5 for supporting the pair of left and right power supply terminals 2 in an insulated state. The back opening portion is detachably closed by a back plate 11 provided with a notch-like insertion portion 12 for guiding the power cord 3 connected to each of the terminals 2 to the outside. An electrode insertion portion 14 for inserting a pin-shaped electrode terminal P at the end of the illuminating lamp L is provided. In the figure, reference numeral 16 denotes a locking piece for locking the back plate 11 to the back opening of the socket body 1. In the embodiment shown in FIG. 1 to FIG. 5, it is made to correspond to the opening side surface of the grip body 20 and communicate with each of the pair of electrode insertion portions 14 from the outside of the peripheral side wall of the socket body 1. In the embodiment shown in FIGS. 6 to 9, the pair of electrode insertion portions 14 themselves are formed in the front blocking portion 13 in the shape of a hole in the left and right direction. Opened and formed.

Gripping member 20 is continuously provided with integrally shaped on the front closed portion 13 of the socket body 1, curved clamping the left and right has a resiliently opened and closed is supported opening at I is the side of the socket body 1 By providing the piece 21, it is substantially C-shaped when viewed from the front. The support opening corresponds to the insertion guide slit 15 so as to correspond to the insertion set of the direct illumination lamp L from the side of the socket body 1, and the front of the insertion guide slit 15 or the front side of the side. It is disposed and is directly integrated with the front blocking portion 13 at the base portion of the grip body 20. The left and right clamping pieces 21 themselves form a support opening having a width that is not as large as that of the diameter width of the illuminating lamp L. The support opening is separated from the front blocking portion 13 and swings inward and outward. Is opened and closed. Also, the inner peripheral diameter of the grip body 20 that is the support inner diameter by the left and right sandwiching pieces 21 is slightly smaller than the outer peripheral diameter of the base portion that is a supported portion of the illuminating lamp L, for example. face Yes as along the outer surface of the base part, clamping Jihen 21 itself that is formed gradually thinner due to reaching the tip, direct insertion of the illuminative lamp L from the support aperture can be smoothly As such,

Insertion guide portions 22 projecting outward are projected from the distal ends of the left and right sandwiching pieces 21, and a temporary escape of the inserted illumination lamp L is provided on the inner peripheral surface of the base portion. A concave retreating portion 23 is formed so that Also, when supporting the lamp L by clamping Jihen 21 of the grip body 20, the ratio in the central position of the front center position (center position relative to the tube diameter) are in the gripping member 2 through the support opening inserted lamp L by that is so as to be positioned in the visual field or the support opening side closer, the illumination lamp L to be out from the inside of the grip body 2, coupled with Chi lamp and retraction section 23 by a bullet attack by clamping Jihen 21 The support stability is improved by pushing L toward the retracting portion 23.

Further, the width of the support opening at the tip of the left and right sandwiching pieces 21 in the grip body 20 is substantially equal to the width between the edges on the outer sides of the left and right insertion guide slits 15 formed in the front blocking portion 13. Therefore, the illumination lamp L can be inserted into the grip body 20 only when the pair of left and right electrode terminals P in the illumination lamp L are in a posture corresponding to the insertion guide slits 15. That is, when the right and left electrode terminals P are positioned only in one of the insertion guide slits 15, the illumination lamp L is inserted into the grip body 20 when inserted from the wrong direction or in the wrong posture. It cannot be inserted.

  On the other hand, specific configurations of the support portion 5 and the power supply terminal 2 in the socket body 1 will be described. In the embodiment shown in FIGS. 1 to 5, the support portion 5 has left and right electrodes opened. The socket body 1 inward from the side surface of the central partition wall protruding from the front blocking portion 13 at the center of the socket body 1 between the insertion portions 14, the back surface of the front blocking portion 13, and the inner peripheral surface of the peripheral side wall of the socket body 1. It consists of an appropriate number of support protrusions 6 provided toward the head. Further, the power terminal 2 is fixed to the base 2A to which the power cord 3 drawn from the insertion portion 12 is connected by the support protrusion 6 from inside and outside, thereby fixing the fixed portion 2B located outside the socket body 1 inside. The electrode insertion portion 14 is provided with an engagement portion 2D that elastically retracts to the outer side of the socket body 1 by the insertion of the electrode terminal P in the electrode insertion portion 14 and engages the electrode terminal P. A contact portion 2C that is elastically biased toward the opening side is provided continuously. As shown in FIG. 3, the power supply terminal 2 with the power cord 3 inserted and disposed in the socket body 1 has the fixed portion 2B supported by an appropriate number of support projections 6 so that the contact portion 2C is electroded. When the electrode terminal P of the illuminating lamp L is inserted into the electrode insertion portion 14 from the side of the socket body 1, the contact portion 2 </ b> C is elastically moved outward of the socket body 1. Accordingly, the engaging portion 2D of the contact portion 2C is brought into contact with the electrode terminal P and is electrically connected with the saving.

  Further, in the embodiment shown in FIGS. 6 to 9, the support portion 5 has a substantially cylindrical shape that is arranged on the left and right sides in the socket body 1 so as to match the hole-shaped electrode insertion portion 14. The power supply terminal 2 is inserted into the cylindrical support portion 5 with a square C shape that is elastically biased toward the inward closing tendency on the base portion 2E to which the power cord 3 is connected. The part 2F is continuously provided. Then, when the electrode terminal P is inserted into the electrode insertion portion 14 from the front side along the cylindrical direction of the socket body 1, the contact portion 2F is forcibly expanded slightly even if it is forced, so that the electrode terminal P closely matches the contact portion 2F. It is designed to be in contact with and electrically connected.

Next, an example of the use thereof will be described. For example, it is provided at the end of the illuminating lamp base B arranged in the lamp housing part in a portable luminaire (not shown). In the embodiment shown in FIGS. 1 to 5, the illuminating lamp L is directly detached from the side of the socket body 1, and the electrode terminal P of the illuminating lamp L is connected to the socket. A slide piece is inserted into the electrode insertion portion 14 along the radial direction of the socket body 1 through the slit-shaped insertion guide slit 15 in the main body 1, while the cap portion of the illuminating lamp L is sandwiched through the support opening of the grip body 20. 21 is inserted into the grip body 20 while being forcibly expanded. At this time, the electrode terminal P is brought into electrical contact with the engagement portion 2D while expanding the contact portion 2C of the power supply terminal 2 in the electrode insertion portion 14 outward, and the base portion is in the grip body 20. It will be held firmly.

  On the other hand, in the embodiment shown in FIGS. 6 to 9, the electrode terminal P of the illuminating lamp L is inserted into the contact portion 2 </ b> F of the power supply terminal 2 in the electrode insertion portion 14 from the front of the socket body 1. The base part is also inserted from the front of the grip body 20, and the electrode terminal P is brought into electrical contact with the contact portion 2F, and at the same time, the base part is firmly held in the grip body 20.

  After that, it is covered with, for example, a protective cover that protects the illuminating lamp L, and is used as a portable one. The illuminating lamp L is surely secured by the grip body 20 even from an external impact or vibration while being carried. It is held stably.

It is a partially omitted exploded perspective view showing the best mode for carrying out the present invention. It is also a front view. It is a rear view of a partially cutout. It is also a plan view. It is a side sectional view similarly. It is a perspective view in other embodiments similarly. It is also a front view. It is a rear view of a partially cutout. It is a side sectional view similarly.

Explanation of symbols

B ... illuminating lamp base L ... illuminating lamp P ... electrode terminal 1 ... socket body 2 ... power supply terminal 2A ... base 2B ... fixed part 2C ... contact part 2D ... engaging part 2E ... base part 2F ... contact part 3 ... power cord 5 ... supporting portion 11 ... back plate 12 ... insertion portion 13 ... front closing portion 14 ... electrode insertion portion 15 ... insertion guide slit 16 ... engaging piece 20 ... grip body 21 ... clamping Jihen 22 ... insertion guide portion 23 ... retracted portion

Claims (1)

In a socket for an illuminating lamp in a portable luminaire that uses an illuminating lamp as an illumination source, the front surface of a cylindrical socket body having a power terminal inside is closed, and the electrode terminal of the illuminating lamp is inserted into the power terminal. An insertion guide slit that communicates with each of the pair of electrode insertion portions is formed in a cutout groove shape in the front blocking portion where the electrode insertion portion is opened, and is supported laterally to hold the end of the illumination lamp openings provided grip body are formed in one piece, the grip member is integrally connected to form the base portion to the front closed portion of the socket body, it is elastically opened and closed by I is the side of the socket body The left and right curved clamping pieces serving as the support openings into which the end portions of the illuminating lamps are inserted have a substantially C-shape when viewed from the front, and the inner diameter of the grip body is the illuminating lamp. Slightly smaller than the outer diameter of the insertion part Is with, the inner peripheral surface of the base portion of the left and right clamping piece previously formed the retracted portion of the concave, the support opening side toward the center position of the illumination lamp which is supported on the grip body is compared to the central position of the grip body What Citea so as to be positioned, Yes so as crowding the lamp to the retracted side by the elastic action of the clamping piece, whereas the power supply terminals, the base power cord is connected, in the socket body Provided with an engaging portion that elastically retracts to the outer side of the socket body by the insertion of the electrode terminal in each of the electrode insertion portions and engages with the electrode terminal via a fixing portion that is fixedly supported by the provided supporting portion. An illuminating lamp socket characterized in that the illuminating lamp is elastically urged toward the support opening side of the socket body by the contact portion that is elastically urged toward the opening side of the electrode insertion portion .

Images