JPH09245611A - Fuse holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fuse holder which can prevent dropping and clattering of fuses and enclose a number of fuses in a certain space. SOLUTION: This fuse holder 51 includes a holder main body 63, having a storage chamber 53 in which a fuse 5 is freely retractably enclosed, and cantilevered flexible lock pieces 59, 61 deflected by the inserted terminals 9, 11 of the attached fuse 5 and pressing the inserted terminals 9, 11 into position with spring forces, the pair of flexible locking pieces 59, 61 provided for pressing the inserted conductors 9, 11 from the inside or the outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuse holder for holding a spare fuse in a fuse box of a vehicle, for example.

[0002]

2. Description of the Related Art As described above, a fuse box for a vehicle needs a fuse holder for holding a spare fuse.

5 to 8 show a conventional fuse holder 1, and FIGS. 9 and 10 show a conventional fuse holder 3 disclosed in Japanese Utility Model Laid-Open No. 62-15756.

As shown in these drawings, the fuse 5
Is provided with an insulating coating 7 and a pair of plug terminals 9 and 11 (plug conductors).

The fuse holder 1 shown in FIGS. 5 to 8 can hold four fuses 5, and each holding function has the fuse 5.
Storage chamber 17, a pair of drop-preventing portions 19 and 21, and a mounting portion 2
It is composed of 3 etc.

Each of the fall-preventing portions 19 and 21 has a flexible arm 2.
5, 27 and stopper portions 29, 31, each stopper portion 29, 31 projects in the mutually opposing direction. When the fuse 5 is attached to the fuse holder 1, the insulating coating 7 contacts the stoppers 29 and 31, and the arms 25 and 27 are bent to widen the gap between the stoppers 29 and 31. After the fuse 5 is attached, the stopper portions 29, 31
Returns to its original position. In addition, the mounting portion 23 includes the fuse 5
It is arranged so as to be inserted between the plug-in terminals 9 and 11 in a state where it is mounted in the housing chamber 17.

The attached fuse 5 has a stopper 29,
The dropout is prevented by 31 and the mounting portion 23.

The fuse holder 3 shown in FIGS. 9 and 10 comprises a housing chamber 33 for the fuse 5, a pair of stopper portions 35 and 37, a pair of flexible locking pieces 39 and 41, and a mounting portion 43. There is.

The fuse 5 mounted on the fuse holder 3
The stoppers 35 and 37 and the mounting portion 43 prevent the stopper from falling off, and the locking pieces 39 and 41 press and fix the attached fuse 5 against the wall surface of the housing chamber 33.

[0010]

However, although the fuse holder 1 has the function of preventing the fuse 5 from falling off as described above, it does not have the fixing function (the rattling prevention function). As shown in FIG. 8, since there is a clearance C between the fuse holder 1 and the fuse 5, the vibration of the vehicle causes the fuse 5 to vibrate between the clearance C and collide with the fuse holder 1. Noise is generated.

On the other hand, in the fuse holder 3, the rattling of the fuse 5 is prevented by the fixing function of the locking pieces 39 and 41 as described above. However, the thickest insulating cover portion 7 of the fuse 5 is configured to be pressed by the locking pieces 39 and 41, and the upper portion of the fuse 5 is suppressed by the stopper portions 35 and 37 as shown in FIG. Locking piece 3 in the closed state
It is pushed and pushed by 9, 41 and installed in an inclined state. Therefore,
It is necessary to increase the size of the accommodation chamber 33, and the dimension W1 of the accommodation chamber 33 shown in FIG. 10 is about twice the thickness of the fuse 5. Thus, the fuse holder 3 becomes large and the number of fuses 5 that can be accommodated in a fixed space is small.

Further, since the fuse 5 is pressed from one side by the locking pieces 39 and 41, when another object collides with it, or when the vehicle receives a force from the opposite side due to vibration or acceleration of the vehicle, The fuse 5 may come off from the fuse holder 3.

In view of the above circumstances, it is an object of the present invention to provide a fuse holder which can prevent the contained fuses from falling off and can accommodate a large number of fuses in a limited space.

[0014]

According to a first aspect of the present invention, there is provided a fuse holder which detachably holds a fuse having an insulating coating and a pair of insertion conductors protruding from the insulating coating to the outside. A holder main body having a storage chamber in which the insulating coating can be freely inserted and removed, and a cantilever-like flexibility that is pressed and bent by a plug-in conductor when a fuse is attached and pushes back and fixes the plug-in conductor by spring force. And a pair of flexible locking pieces, which press the both insertion conductors from the inside or press the both insertion conductors from the outside.

As described above, in the fuse holder according to the first aspect of the present invention, the drop-preventing portion is provided on the fuse mounting side and the flexible locking piece is provided on the opposite side, and the fuse holder is mounted in the accommodation chamber. The fuse is prevented from falling off by these drop-out preventing portions and the flexible locking piece.

Further, the flexible locking piece is pushed and bent by the plug-in conductor of the attached fuse, and this plug-in conductor is pushed back and fixed by the spring force. With this fixing function, unlike the conventional fuse holder 1, the rattling of the fuse is prevented, and, for example, the fuse does not vibrate even when the vehicle is vibrated, and noise is generated due to a collision between the fuse and the fuse holder. To be prevented.

Further, since the fuse holder according to the first aspect of the present invention is configured so that the insertion conductor of the fuse is suppressed by the flexible locking piece, the fuse is inclined and accommodated by pressing the insulating coating portion of the fuse. Unlike the fuse holder 3 of No. 1, it is not necessary to enlarge the accommodation chamber. Therefore, a larger number of fuses than the fuse holder 3 can be accommodated in a fixed space.

In addition to this, since the pair of flexible locking pieces are configured to press both the inserting conductors from the inside or the outside, a larger fixing function can be obtained. Further, unlike the conventional fuse holder 3 that presses the fuse from one direction, the fuse holder of the present invention that suppresses the insertion conductors from both directions in this way receives a force such as vehicle vibration or acceleration from any direction. , The fuse never comes off.

Further, if the pair of flexible locking pieces are arranged inside the both plug-in conductors, the space between the two flexible locking pieces becomes narrower,
The fuse holder can be made smaller accordingly.

A second aspect of the present invention is the fuse holder according to the first aspect, wherein the flexible locking piece is provided with a taper portion for guiding the tip of the insertion conductor when the fuse is mounted. With this feature, an effect equivalent to that of the first aspect is obtained.

In addition to this, since the flexible locking piece is provided with the tapered portion for guiding the insertion conductor, the fuse can be easily mounted, and the flexible locking piece can be mounted only by mounting the fuse. It can be easily pushed and bent, and the function of fixing the fuse is surely obtained. A third aspect of the present invention is the fuse holder according to the first or second aspect, wherein a flexible arm provided on a fuse mounting side is provided with a stopper portion so as to project the fuse into the accommodation chamber. When the fuse is attached, the stopper portion is spread by the insulating coating portion, and after the fuse is attached, the stopper portion which has returned to the original position has a pair of drop prevention portions for preventing the fuse from dropping.

This fuse holder has the same effect as that of the first or second aspect of the invention.

According to a fourth aspect of the present invention, there is provided the fuse holder according to the third aspect, wherein the holder main body has opposing walls, and one of the opposing walls is provided with one of the flexible locking pieces. By providing the other of the flexible locking pieces on the other side, the directions of the respective free ends of the both flexible locking pieces are staggered, and an effect equivalent to the configuration of claim 3 is obtained. .

In addition to this, the flexible locking pieces are separately provided on one and the other of the opposing walls of the holder main body, and the free ends of both the flexible locking pieces are directed in opposite directions. The flexible range in which the flexible locking pieces are combined becomes wide, and it is possible to cope with variations in the intervals of the plug-in conductors of the fuse.

Further, since the respective free ends of both the flexible locking pieces are oriented in opposite directions, a thin plug-in conductor is erroneously inserted between the respective free ends and the wall portion of the holder body when mounting the fuse. It can be avoided.

The invention of claim 5 is the invention of claim 3 or claim 4.
The fuse holder according to claim 1, wherein the pair of flexible locking pieces presses the pair of plug-in conductors in the width direction, and at the wall portion of the holder body facing the free ends of the flexible locking pieces. A groove having a width narrower than that of the plug-in conductor is provided, and an effect equivalent to that of the configuration of claim 3 or 4 is obtained.

In addition to this, the wall of the holder main body facing the free end of the flexible locking piece is provided with a groove having a width narrower than that of the plug-in conductor, thereby eliminating the gap between the wall and the free end. Even when the free ends of both the flexible locking pieces are made to face in opposite directions, and even when the free ends are formed in the same direction, the insertion conductor is erroneously connected to the free end and the wall portion. It can be effectively prevented from interposing.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a fuse holder of the present invention will be described below with reference to the drawings. This embodiment has the features of claims 1, 2, 3, 4, and 5.

FIG. 1 shows a fuse holder 51 of this embodiment.
2 is a perspective view showing the fuse holder 51 holding the fuse 5 with a part thereof cut away, and FIGS. 3 and 4 are a plan view and a vertical sectional view of the fuse holder 51 holding the fuse 5, respectively. .

As shown in each of these drawings, the fuse holder 51 can hold four fuses 5, and each holding function has a housing chamber 53 of the fuse 5 and a pair of drop-preventing portions 55.
57 and a pair of flexible locking pieces 59, 61, etc., which are integrally formed with the holder main body 63.

As shown in FIGS. 3 and 4, the fuse 5 is housed in each housing chamber 53. An appropriate gap is provided between the outer periphery of the insulating coating portion 7 of the fuse 5 and the accommodation chamber 53.

The fall-off preventing portions 55 and 57 are respectively composed of flexible arms 65 and 67 and stopper portions 69 and 71, and the stopper portions 69 and 71 project in the mutually opposing directions. Further, the upper portions of the stopper portions 69 and 71 against which the insulating coating portion 7 abuts when the fuse 5 is attached are tapered.

As shown in FIG. 3, the flexible locking pieces 59 and 61 are formed in a cantilever shape to provide flexibility. One of the flexible locking pieces 59 has a wall 73 on one side of the accommodation chamber 53.
It is provided on the (opposing wall), and the other flexible locking piece 61 is provided on the wall portion 75 (opposing wall) on the other side of the accommodation chamber 53.
The flexible locking pieces 59 and 61 are provided with tapered portions 77 and 79, respectively.

The flexible locking pieces 5 are provided on the walls 73 and 75, respectively.
Grooves 81 and 83 are formed at positions facing the free ends of the grooves 9 and 61, and the width W2 of these grooves 81 and 83 (FIG. 3).
Is narrower than the width W3 (FIG. 2) of the insertion terminals 9 and 11 of the fuse 5.

In this way, the fuse holder 51 is constructed.

Next, the operation will be described.

When the fuse 5 is attached to the fuse holder 51, the insulating coating portion 7 contacts the taper portion of the stopper portions 69 and 71, and the arms 65 and 67 are bent so that the stopper portion 69,
Widen the interval of 71. When the fuse 5 is installed,
The elastic force of the arms 65 and 67 causes the stopper portions 69 and 71 to return to their original positions.

In this way, the falling prevention portions 55, 57 and the flexible locking pieces 59, 61 prevent the fuse 5 from falling off.

When the fuse holder 51 is mounted, the insertion terminals 9 and 11 are guided by the tapered portions 77 and 79 and are inserted outside the flexible locking pieces 59 and 61. At this time, each of the flexible locking pieces 59, 61 has a broken line and an arrow 8 in FIG.
As shown by reference numerals 5 and 87, it is sandwiched between the insertion terminals 9 and 11 and bends inward.

The insertion terminals 9 and 11 are pressed and fixed from the inside by the flexible locking pieces 59 and 61 thus bent, and the fixing function prevents the fuse 5 from rattling. Therefore, for example, the fuse 5 does not vibrate even when the vehicle is vibrated, and noise generation due to the collision between the fuse 5 and the fuse holder 51 is prevented.

In addition to this, since the fuse holder 51 is configured to press the insertion terminals 9 and 11 of the fuse 5, the conventional fuse holder 3 that presses the insulating coating portion 7 which is larger than the insertion terminals 9 and 11 is pressed. Unlike the above, it is not necessary to enlarge the accommodation chamber 53. Therefore, the fuse holder 51 can accommodate the fuse 5 that is almost twice as large as that of the fuse holder 3. For example, when used in a fuse box of a vehicle, a large number of fuses 5 can be accommodated in a small space.

Further, since the flexible locking pieces 59 and 61 are provided with the tapered portions 77 and 79 for guiding the insertion terminals 9 and 11, the fuse 5 can be easily attached, and the fuse 5 is simply attached. The flexible locking pieces 59 and 61 can be surely pressed and bent, and the fixing function of the fuse 5 can be surely obtained.

Further, since the insertion terminals 9 and 11 are configured to be pressed by the pair of flexible locking pieces 59 and 61, the fixing function of the fuse 5 is increased accordingly. Unlike the conventional fuse holder 3 that presses the fuse 5 from one direction, the fuse holder 51 that suppresses both the insertion terminals 9 and 11 from the inside receives force such as vehicle vibration or acceleration from any direction. However, the fuse 5 does not come off.

Since both flexible locking pieces 59 and 61 are formed inside the plug-in terminals 9 and 11, the flexible locking pieces 59 and 61 are formed.
The space between the fuse holders 51 can be reduced.
Can be made that small.

In addition to this, the wall portion 7 of the holder main body 63
As shown in FIG. 3, the flexible locking pieces 59 and 61 are separately provided on the respective parts 3 and 75, and the free ends of the flexible locking pieces 59 and 61 are set in opposite directions. Even if the flexible range is widened and the intervals between the insertion terminals 9 and 11 of the fuse 5 vary, it is possible to cope with the variation.

Further, since the respective free ends are in opposite directions in this manner, it is possible to prevent the thin plug terminals 9 and 11 from being accidentally inserted between the free ends and the walls 73 and 75 when the fuse 5 is mounted. To be

In addition to this, the wall 7 facing each free end
Width (W3) than width (W3) of plug terminals 9 and 11
By providing the narrow grooves 77 and 79 of 2), the wall portion 7
It is possible to eliminate the gap between 3,75 and the free end,
The effect of preventing the insertion terminals 9 and 11 from being accidentally inserted between the free ends and the wall portions 73 and 75 is further improved.

Further, according to the manufacturing method of the present embodiment, the fuse holder 51 as described above can be obtained which can prevent the fuse 5 from falling off and can accommodate a large number of fuses 5.

Further, as described above, the fuse holder 51 accommodates the four fuses 5 arranged in one row. However, in the manufacturing method of this embodiment, the fuse holders are integrally molded. , And the number of fuses per row).

In the present invention, when a pair of flexible locking pieces are provided, each free end may be formed in the same direction. In this case, if a groove narrower than the width of the plug-in conductor of the fuse is provided in the wall portion of the holder body, it is possible to prevent the plug-in conductor from being accidentally sandwiched between each free end and the wall portion.

Further, in the present invention, the plug-in conductor of the fuse may be held by the flexible locking piece in the thickness direction.

[0052]

As described above, according to the first aspect of the present invention, the fuse is prevented by the drop-out preventing portion provided on the mounting side of the fuse and the flexible locking piece provided on the opposite side. It is prevented from falling off.

Further, due to the fixing function of the plug-in conductor that is pressed and bent by the plug-in conductor of the fuse, rattling of the fuse and noise due to collision between the fuse and the fuse holder are prevented.

Furthermore, the structure of the present invention in which the flexible engaging piece presses the plug-in conductor of the fuse does not require a large accommodating chamber, unlike the conventional example in which the insulating coating of the fuse is pressed. A large number of fuses can be accommodated in the space.

Further, by pressing both plug-in conductors from the inside or the outside with a pair of flexible locking pieces, a large fixing function can be obtained, and unlike the conventional fuse holder 3, vibration and acceleration of the vehicle are generated. The fuse does not come off even if it receives force such as.

Further, in the structure in which the pair of flexible locking pieces are formed inside the both plug-in conductors, the interval between the flexible locking pieces is narrowed, and the fuse holder can be made smaller accordingly.

According to the second aspect of the invention, the taper portion provided on the flexible locking piece for guiding the plug-in conductor facilitates the mounting of the fuse, and only by mounting the fuse, the fixing function of the fuse is surely achieved. Is obtained.

According to the third aspect of the present invention, the stopper portions of the pair of the drop-out preventing portions are spread by the insulating coating portion when the fuse is mounted in the accommodation chamber, and are returned to their original positions after the fuse is mounted. The stopper part surely prevents the fuse from falling off.

According to the fourth aspect of the present invention, since the free ends of both the flexible locking pieces are in opposite directions, the flexible range of the both flexible locking pieces is widened, and the spacing between the insertion conductors is increased. It can also be used for fuses that have variations in

By setting the free ends in opposite directions, it is possible to avoid accidentally inserting the plug-in conductor between the free end and the wall when the fuse is attached.

According to the fifth aspect of the present invention, by providing the groove of the holder main body with a width narrower than that of the plug-in conductor, when the free ends of both flexible locking pieces are formed in opposite directions, Of course, even when the free ends are formed in the same direction, it is possible to effectively avoid accidentally inserting the insertion conductor between the free end and the wall portion.

[Brief description of drawings]

FIG. 1 is a perspective view showing a fuse holder according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a fuse holder of FIG.

FIG. 3 is a plan view of the fuse holder of FIG. 1 with a fuse attached.

4 is a vertical cross-sectional view of the fuse holder of FIG. 1 with a fuse attached.

FIG. 5 is a perspective view showing a first conventional example.

6 is a perspective view showing the conventional example of FIG. 5 with a fuse attached by partially cutting away.

FIG. 7 is a plan view of the conventional example of FIG. 5 with a fuse attached.

8 is a vertical cross-sectional view of the conventional example of FIG. 5 with a fuse attached.

FIG. 9 is a perspective view showing a second conventional example.

10 is a cross-sectional view of the conventional example of FIG. 9 with a fuse attached.

[Explanation of symbols]

 5 Fuse 7 Insulation coating part 9 and 11 Plug-in terminal (plug-in conductor) 51 Fuse holder 53 Storage chamber 55 and 57 Fall-out prevention part 59 and 61 Flexible locking piece 63 Holder body 65 and 67 Flexible arm 69 and 71 Stopper 73, 75 Wall (opposing wall) 77, 79 Tapered 81, 83 Groove

Claims (5)

[Claims] 1. A fuse holder that detachably holds a fuse having an insulating coating portion and a pair of insertion conductors protruding from the insulating coating portion, the housing holding the insulating coating portion in a removable manner. A holder main body having a chamber; and a cantilever-shaped flexible locking piece that is pressed and bent by a plug-in conductor when a fuse is attached and pushes back and fixes the plug-in conductor by a spring force. A fuse holder, characterized in that a pair of locking pieces are provided, which press both insertion conductors from the inside or press both insertion conductors from the outside. 2. The fuse according to claim 1, wherein the flexible locking piece is provided with a taper portion that guides the tip of the insertion conductor when the fuse is mounted. holder. 3. The invention according to claim 1 or 2, wherein the flexible arm provided on the fuse mounting side is provided with a stopper portion so as to project the fuse into the accommodation chamber. The fuse holder is characterized in that the stopper portion is spread by the insulating coating portion, and the stopper portion, which has returned to its original position after the fuse is mounted, has a pair of stopper portions for preventing the fuse from falling off. 4. The invention according to claim 3, wherein the holder body has opposing walls, one of the opposing walls is provided with one of the flexible locking pieces, and the other of the opposing walls is flexible. A fuse holder characterized in that by providing the other of the locking pieces, the directions of the free ends of the two flexible locking pieces alternate. 5. The invention according to claim 3 or 4, wherein the pair of flexible locking pieces presses the pair of insertion conductors in the width direction, and A fuse holder characterized in that a groove having a width narrower than that of the plug-in conductor is provided on a wall portion of the holder body facing the free end.