JPH077091U - Noise prevention adapter for decorative light fixtures - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the generation of noise associated with the use of flashing bulb sets. [Structure] A pair of insertion grooves 2a and 2b are formed in a casing 2, and a pair of conductive terminals 3 and 5 are fitted therein. A fuse lamp 6 and a capacitor 7 are connected in series between the pair of conductive terminals 3 and 5. Blade receiving portions 3a of the conductive terminals 3 and 5,
Engagement projection pieces 3c and 5c are formed on 5a in a downward direction in FIG. 1, and pressure contact projections 2c and 2d are formed behind the engagement projection pieces 3c and 5c. [Effect] Insert the plugs of the flashing bulb set into the grooves 2a, 2b.
, The round holes of the blade of the plug are engaged with the engaging projection pieces 3c, 5c of the conductive terminals 3, 5, and the press contact projections 2c, 2d are located behind the blade receiving portions 3a, 5a of the conductive terminals 3, 5. Prevent the movement of. As a result, the plug will not come off with normal pulling force. Even if a plurality of flashing light bulb sets are used, only one noise prevention adapter 1 for the decorative light fixture is required, so that the noise of the flashing light bulb set can be prevented without increasing the size of the whole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a noise prevention adapter for a decorative light fixture suitable for decorating a Christmas tree or the like with a set of a large number of blinking light bulbs.

[0002]

[Prior art]

 In general, using a blinking bulb set causes noise, so it is necessary to take some noise prevention measures. Therefore, it is considered to incorporate a noise prevention device in the plug of the blinking light bulb set.

[0003]

[Problems to be solved by the device]

 However, this inevitably increases the size of the flashing bulb set plugs, so each flashing bulb set has a large plug, especially when multiple flashing bulb sets are connected in sequence via the feed cord. Therefore, it is not preferable because the entire set of a plurality of blinking light bulbs becomes large.

In view of the above circumstances, the present invention provides a noise prevention adapter for a decorative light fixture that can prevent the generation of noise associated with the use of a flashing bulb set without increasing the overall size. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 That is, the present invention has a casing (2) in which a pair of insertion grooves (2a, 2b) into which a plug of a decorative light fixture can be inserted is formed, and the casing has a pair of conductive terminals (3, 2). 5) is provided such that the blade receiving portions (3a, 5a) face the pair of insertion grooves and the blade portions (3b, 5b) project from the casing, and noise is generated between the pair of conductive terminals. Preventing means (6, 7) are provided, and engaging projection pieces (3c, 5c) are respectively formed on the blade receiving portions of the conductive terminals so as to form an acute angle with respect to the plug insertion direction. It is configured by forming press-contacting protrusions (2c, 2d) on the casing portion located behind the mating protrusion piece, respectively.

The numbers in parentheses are for convenience of showing corresponding elements in the drawings, and therefore the present invention is not limited to the description in the drawings. The same applies to the "Claims for utility model registration" and "Action" columns.

[0007]

[Action]

 With the above structure, according to the present invention, when the plug of the decorative light fixture is inserted into the insertion groove (2a, 2b), the round hole (9a) of the blade (9) of the plug becomes the conductive terminal (3, 5). It engages with the engaging projection pieces (3c, 5c), and the pressure contact projections (2c, 2d) act so as to prevent rearward movement of the blade receiving portions (3a, 5a) of the conductive terminals.

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front sectional view showing an embodiment of a noise prevention adapter for a decorative light device according to the present invention, FIG. 2 is an enlarged view of a portion A of the noise prevention adapter for a decorative light device shown in FIG. 1, and FIG. FIG. 3 is a perspective view of the conductive terminal shown in FIG. 2.

As shown in FIG. 1, a noise prevention adapter 1 for a decorative light fixture according to the present invention has a casing 2 made of synthetic resin, and a pair of insertion grooves 2a are formed on the upper surface of the casing 2 in FIG. 2b is formed. A pair of conductive terminals 3 and 5 are fitted in the casing 2 portion below the insertion grooves 2a and 2b, and the blade receiving portions 3a and 5a of the conductive terminals 3 and 5 are inserted into the insertion grooves 2a and 2b. The blade portions 3b and 5b of the conductive terminals 3 and 5 project from the casing 2 downward in FIG. A fuse lamp 6 and a capacitor 7 are connected in series between the conductive terminals 3 and 5. Further, as shown in FIGS. 1 and 3, the engaging protrusions 3c and 5c are obliquely directed downwardly into the blade receiving portions 3a and 5a of the conductive terminals 3 and 5, that is, the plugs of the flashing light bulb set to be described later are inserted. It is formed so as to form an acute angle with respect to the direction (downward in FIG. 1), and press-contacting protrusions 2c and 2d are formed on the casing 2 portion behind the engaging protrusions 3c and 5c.

Since the noise prevention adapter 1 for a decorative lighting device according to the present invention has the above-described configuration, when a blinking light bulb set (not shown) is used, its plug is used to remove the noise for the decorative lighting device. When plugged into an outlet (not shown) via the prevention adapter 1, generation of noise can be prevented in advance.

That is, the plug of the flashing light bulb set is not directly inserted into the outlet, but is inserted into the insertion grooves 2a and 2b of the noise prevention adapter 1 for the decorative light fixture. Then, the blade of the plug is inserted downward in FIG. 1, and finally, as shown in FIG. 2, the round hole 9a formed in the blade 9 of the plug is engaged with the engaging projection piece of the conductive terminals 3 and 5. Engage with 3c and 5c. When attempting to pull out the plug from the noise prevention adapter 1 for a decorative light fixture in this state, the round hole 9a of the blade 9 of the plug is caught by the engaging projection pieces 3c, 5c of the conductive terminals 3, 5, and the engaging projection piece Due to the press-contact projections 2c and 2d located behind 3c and 5c, the conductive terminals 3 and 5 cannot escape to the rear, that is, the side opposite to the blade 9. As a result, the plug cannot be pulled out with a normal pulling force (about 60 N), and a larger force (about 100 N) is required to pull it out.

In this way, when the plug of the flashing light bulb set is inserted into the insertion grooves 2a, 2b of the noise prevention adapter 1 for the decorative light fixture, the blades of the conductive terminals 3, 5 of the noise prevention adapter 1 for the decorative light fixture are inserted. Insert the parts 3b and 5b into an outlet. Then, the plug of the blinking light bulb set is in a state of being inserted into the socket through the noise prevention adapter 1 for the decorative light fixture, and the fuse lamp 6 and the condenser 7 incorporated in the noise prevention adapter 1 for the decorative light fixture are connected to each other. Prevents noise.

At this time, as described above, the noise prevention adapter 1 for the decorative light fixture is firmly attached to the plug of the blinking bulb set, so that the user accidentally mistakes the noise prevention adapter 1 for the decorative light fixture. It is preferable that there is little risk of removing and using it, and that thorough noise prevention measures can be taken.

By the way, when a plurality of flashing light bulb sets are used, these flashing light bulb sets are sequentially connected via a feed cord, but even in this case, one noise prevention adapter 1 for a decorative light fixture is used. Therefore, the entire set of multiple flashing light bulbs does not become large.

[0016]

[Effect of device]

 As described above, according to the present invention, the casing 2 has the casing 2, and the casing 2 is formed with the pair of insertion grooves 2a and 2b into which the plug of the decorative light fixture such as the flashing light bulb set can be inserted. The casing 2 is provided with a pair of conductive terminals 3 and 5 in such a manner that the blade receiving portions 3a and 5a thereof face the pair of insertion grooves 2a and 2b and the blade portions 3b and 5b project from the casing 2. A noise prevention means such as a fuse lamp 6 and a condenser 7 is provided between the pair of conductive terminals 3 and 5, and engaging projection pieces 3c and 5c are respectively attached to the blade receiving portions 3a and 5a of the conductive terminals 3 and 5. Since it is formed so as to form an acute angle with respect to the inserting direction, and the press-contacting protrusions 2c and 2d are formed on the casing 2 portions located behind the engaging protrusions 3c and 5c, respectively, the decorative lamp Instrument When the plug is inserted into the insertion grooves 2a and 2b, the round hole 9a of the blade 9 of the plug engages with the engaging projection pieces 3c and 5c of the conductive terminals 3 and 5, and the press contact projections 2c and 2d are conductive terminals. Since the blade receiving portions 3a and 5a of the blades 3 and 5 are prevented from moving rearward, it is possible to prevent the generation of noise accompanying the use of the decorative light fixture without increasing the size of the whole. It is possible to provide the noise prevention adapter 1 for a decorative light fixture.

[Brief description of drawings]

FIG. 1 is a front sectional view showing an embodiment of a noise prevention adapter for a decorative light fixture according to the present invention.

FIG. 2 is an enlarged view of a portion A of the noise prevention adapter for the decorative light fixture shown in FIG.

FIG. 3 is a perspective view of the conductive terminal shown in FIG.

[Explanation of symbols]

 1 ... Noise prevention adapter for decorative light fixtures 2 ... Casing 2a, 2b ... Insertion groove 2c, 2d ... Pressure contact protrusion 3, 5 ... Conductive terminal 3a, 5a ... Blade receiving portion 3b, 5b ... Blade Part 3c, 5c ... Engaging projection piece 6 ... Noise prevention means (fuse lamp) 7 ... Noise prevention means (condenser)

Claims (1)

[Scope of utility model registration request] 1. A casing (2) having a pair of insertion grooves (2a, 2b) into which a plug of a decorative light fixture can be inserted, the casing having a pair of conductive terminals (3, 5). ) Is provided such that the blade receiving portions (3a, 5a) face the pair of insertion grooves and the blade portions (3b, 5b) project from the casing, and noise preventing means is provided between the pair of conductive terminals. (6, 7) are provided, and the engaging projection pieces (3
c, 5c) is formed in a direction that forms an acute angle with respect to the plug insertion direction, and pressure contact protrusions (2c, 2d) are formed on the casing portions located behind each of the engagement protrusion pieces. Noise prevention adapter for decorative light fixtures.