JPH0625875Y2 - Holder for tube fuse - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention prevents excessive current supply by being provided in an electric circuit of OA equipment, audio equipment, consumer electric appliances, especially car electric appliances. The present invention relates to a tube fuse and a tube fuse holder for incorporating a terminal fitting or the like for connecting the tube fuse and a lead wire.

[Prior art and its problems]

Conventionally, a tube fuse is used by connecting it to a lead wire via a dedicated terminal metal fitting and being mounted on a fuse box, a fuse holder, a fuse clip, etc., but usually, a tube fuse holder and a lead wire are connected. If you want to
The end of the lead wire, which is stripped of the bare wire, is wound and crimped on the connection part of the terminal metal fitting inside the holder, or it is heat-welded with solder, etc. In some cases skilled skills were required.

In addition, the conventional fuse holder used especially for electric appliances for cars is a tubular body with lead wire insertion holes formed at both ends, and it is divided at the center side in the length direction, and each can be attached and detached. Screw it into the terminal fitting, tube fuse,
Incorporating a coil spring etc., it was inconvenient because it took time to remove the screw and replace it in order to replace it with a new tube fuse when an excessive current flows to the tube fuse and the wire breaks.

Furthermore, when attaching the lead wire to the conventional holder,
At least double the length of the fuse holder is passed through the lead wire insertion hole and then connected to the terminal metal fitting connection as described above.On the other hand, the lead wire used for car electrical products, etc. Since the two positive and negative lead wires are preliminarily arranged side by side, and a part of the coating is welded to unify them, the fuse holder for the lead wires must be attached first. Separate the welding of the part to be welded to a length much longer than the length of the fuse holder and cut the lead wire on the connecting side by the length of the tube fuse and connect it to the holder as described above. Was divided into two parts near the fuse holder, and there was a problem that it was scratched by a hand or the like during use.

[Means for solving problems]

In view of the above problems, the present invention incorporates a terminal fitting made of a lead wire connecting plate provided with a V-shaped cutout portion to simplify the connecting process, and at the same time, inconveniences during replacement and use of the tube fuse. The present invention also provides a holder for a tube fuse that can be improved.

[Constitution of device]

According to the configuration of the present invention, a fixing rib is formed in the terminal metal fitting built-in portion, a V-shaped notch is provided in the fixing rib, and a lead wire connecting plate having a rounded portion is erected, and the lead wire connecting plate is attached. Extend the connection piece, bend it into a horseshoe shape to the connection piece, and extend the tube fuse fitting part with the bent pieces with both edges bent in the width direction, and bend it to both sides of the tube fuse built-in part. This is a configuration in which a fitting rib for fitting the piece is formed and a lead wire fixing rib is provided upright on the lid.

[Function of device]

The effect of the present invention is that a fitting rib is formed on the tube fuse built-in portion of the holder body, and a bent piece is formed on the tube fuse fitting portion of the terminal fitting so that the main body and the terminal fitting can be fitted securely with one touch. By forming a V-shaped cutout portion and a rounded portion on the lead wire connection plate, arranging lead wire fixing ribs on the lid, and closing the lid, the lead wire placed in the cutout is a lead. The wire fixing rib is pressed to the cutout portion, the coating of the lead wire is cut at the cutout portion to bring it into a conductive state, and the lead wire is sandwiched between the rounded portions.

[Example of device]

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

FIG. 1 is an external perspective view for explaining the present invention, FIG. 2 is a sectional view of an essential part for explaining the present invention, and FIG. 3 is an AA line for explaining the present invention. FIG.

The present invention provides a tube fuse F which is provided in an electric circuit of an office automation equipment, an audio equipment, a consumer electric appliance, especially an electric appliance for a car, which is frequently used in recent years, to prevent supply of an excessive current,
And a lead wire R consisting of a tube fuse F and a coated wire
The present invention relates to a tube fuse holder 1 for assembling a terminal fitting 2 for connecting to and.

According to the present invention, a main body 1a and a lid 1b. 1c.
1d, terminal metal fittings are formed on both sides of the main body 1a, and tube fuses are installed on the central side of the main body 1a. The lid 1b. 1c. 1d is a holder for a tube fuse, which is further divided into three parts, each of which is provided with a fixing rib 8 having a U-shaped cross-section, which is opposed to the terminal fitting assembly part, and has a center point on the fixing rib 8. Forming a V-shaped cutout portion 4b opening from the above to the upper edge and press-fitting a substantially circular lead wire connection plate 4a centered on a rounded portion 6 continuous with the cutout portion 4b. A connecting piece 4c extending to the tube fuse incorporating portion is provided below the lead wire connecting plate 4a, and the connecting piece 4c is bent upward in a horseshoe shape along the lengthwise direction and both end edges are formed. Fitting in which a tube fuse fitting portion 4e provided with a bending piece 4d bent in the width direction is extended, and the bending piece 4d is elastically fitted to both sides of the tube fuse incorporating portion. The rib 9 is formed, and the lid 1b.
A pair of lead wire fixing ribs 7 having a slight width facing the lead wire connecting plate 4a and a height slightly lower than the center point are erected on 1d, and the lid body 1
b. By closing 1d, the tip of the lead wire fixing rib 7 presses the lead wire R placed in the V-shaped cutout portion 4b, and the coating of the lead wire R is cut to enable conduction. Together with this, it is to be sandwiched by the rounded portions 6.

That is, according to the present invention, as shown in FIG. 1, a main body 1a and a lid 1b. 1c. The main body 1 is divided into 1d and
The terminal metal fittings are provided on both end sides of a and the tube fuse incorporating parts are provided on the central side of the main body 1a, and the respective incorporation parts can be independently closed. The lid 1b. 1c. The present invention relates to a tube fuse holder 1 made of synthetic resin or the like, which is obtained by further dividing 1d into three parts.

Fixing ribs 8 having a U-shaped cross section are formed in the respective terminal metal fitting parts, and leads of substantially circular aluminum, copper or the like having the same diameter as the tube fuse F are formed on the fixing ribs 8. The wire connection plate 4a is press-fitted to stand upright, and the lead wire connection plate 4a is connected to the V-shaped notch 4b opening from the center point to the upper edge and to the notch 4b. The rounded portion 6 is formed.

Below the lead wire connection plate 4a, a connecting piece 4c extending to the tube fuse incorporating portion is extended, and the connecting piece 4c is made of aluminum,
A tube fuse fitting in which a single rectangular small metal plate of copper or the like is bent upward in a horseshoe shape and bent pieces 4d are formed by bending both end edges bent in the horseshoe shape in the width direction. Part 4
e is extended.

Then, as shown in FIG. 3, the tube fuse fitting portion 4
e is a terminal for inserting and pinching the tubular terminal at the end of the tube fuse F so that the tube fuse F can be energized, so that the tubular terminal can be easily and firmly inserted. , The elongated rectangular single metal small plate is bent to a horseshoe shape having the same diameter as the tubular terminal or a slightly smaller diameter and a slightly wider width, thereby giving appropriate elasticity in the inner diameter direction. Also, a plurality of locking claws 5 are projected on the tube fuse fitting portion 4e and bent at a right angle to press the side surface of the tubular terminal of the tube fuse F and remove it in the longitudinal direction. It is preferable to prevent this, and to form fitting ribs 9 that bulge inward on both edges of the tube fuse incorporating portion, and to use the elasticity of the terminal fittings 4 to the fitting ribs 9 to bend the bent pieces. When 4d is fitted, it will never come off.

The V-shaped notch 4b is formed at a relatively sharp angle, and the tip of the lead wire R covered with vinyl or the like is pressed into the lead wire R by hand or the like to cover the lead wire R. However, in the present invention, the lead wire R has a narrowed tip portion of the V-shaped cutout portion 4b, that is, to the cutout portion 4b toward the center point of the lead wire connection plate 4a. As shown in FIG. 2, a continuous rounded portion 6 is formed. Further, as shown in FIG. 2, the lead wire connecting plate 4a is sandwiched between the lids 1b and 1d with a gap, and the width is slightly different from the center point. Since the pair of lead wire fixing ribs 7 having a height slightly downward are provided upright, the lead wire R is simply placed on the notch 4b and the lid 1b. By closing the lid 1d, the lead wire R is pressed and cut to ensure more reliable energization and increase the degree of fixation.

Moreover, in order to connect the lead wire R securely,
It is preferable to form the V-shaped notch 4b from the center point of the lead wire connecting plate 4a. In the case of the lead wire R that has a thick coating and is difficult to press-contact, the coating is previously peeled off with pliers, etc. It is also possible to connect by connecting, and in this case, by providing the rounded portion 6 connected to the cutout portion 4b at the central position, the scattered bare wire portion can be bound,
As described above, the lead wire fixing ribs 7 may be pressed and fixed.

[Effect of device]

As described above, according to the present invention, by forming the V-shaped notch and the rounded portion on the lead wire connecting plate of the terminal fitting incorporated in the fuse holder, the lead wire can be easily pressed into a bare wire. Therefore, it is not necessary to peel off the coating on the tip of the lead wire in advance to make it a bare wire.Furthermore, since the lead wire fixing ribs provided on the lid firmly fix it, there is no need for winding and welding. Therefore, the connection process can be simplified, and the lids can be closed independently, which makes it easy to replace the tube fuse and to separate the lead wire consisting of two wires for a long time. Because you don't have to
This is a significant idea that has an epoch-making and practical utility that also improves the inconvenience of scratching the lead wire with a hand after wiring.

[Brief description of drawings]

FIG. 1 is an external perspective view for explaining the present invention, FIG. 2 is a sectional view of an essential part for explaining the present invention, and FIG. 3 is an AA line for explaining the present invention. FIG. R: lead wire, F: fuse. 1 ... Holder for tube fuse, 1a ... Main body, 1b, 1
c, 1d ... Lid, 2 ... Lead wire insertion hole, 3 ... Hinge part, 4 ... Terminal fitting, 4a ... Lead wire connection plate, 4b
...... V-shaped notch, 4c ...... connecting piece, 4d ...... bending piece, 4e ...... tube fuse fitting part, 5 ...... locking claw, 6 ...
… R-part, 7 …… Lead wire fixing ribs, 8 …… Fixing ribs, 9 …… Fitting ribs.

Claims (1)

[Scope of utility model registration request] 1. A tubular body having lead wire insertion holes at both ends is axially divided into a main body and a lid body through hinge portions, and terminal metal fitting assembly portions are formed on both end sides of the main body. A tube fuse holder is provided on the central side of the main body, and the lid body is further divided into three parts so that each of the assembly parts can be independently closed. Forming fixing ribs each having a U-shaped cross section relative to each terminal metal fitting built-in portion,
A V-shaped cutout portion that opens from the center point to the upper edge is formed in the fixing rib, and a substantially circular lead wire connection plate that is formed around a rounded portion continuous to the cutout portion is press-fitted. Standingly, extending a connecting piece extending to the tube fuse built-in portion below the lead wire connecting plate, and bending the connecting piece upward in the horseshoe shape along the length direction, A tube fuse fitting portion provided with a bending piece bent in the width direction is extended, and fitting ribs for elastically fitting the bending piece are formed on both sides of the tube fuse incorporating portion. Then, a pair of lead wire fixing ribs having a slight width facing the lead wire connection plate and a slight gap and a height slightly lower than the center point are provided upright on the lid body, By closing the lid, the tip of the lead wire fixing rib is placed on the V-shaped notch. Presses the lead wire, tube fuse holder, characterized in that to pinched at curved portion with to the energizable cutting the coating of the lead wire.