JP4076137B2 - Fuse box incorrect insertion prevention jig and fuse insertion method - Google Patents

Description

[0001]
[Technical field belonging to the invention]
The present invention relates to a wrong fuse prevention jig for preventing insertion of a fuse having an unsupported fuse capacity into a fuse insertion opening of a fuse box.
[0002]
[Prior art]
FIG. 11 shows a conventional fuse misinsertion prevention structure. Reference numeral 4 denotes a fuse box for an automobile, for example, and 1 denotes a fuse mounted on the fuse box 4. At the upper end of the cover case of each fuse 1, projections 1a, 1b, 1c for identifying the fuse capacity are provided at different positions corresponding to the fuse capacity (30A, 40A, etc.). On the other hand, the fuse box 4 is provided with an enclosure wall 6 for mounting the fuse positioning plate 2 together with a plurality of fuse insertion ports 5. Reference numeral 2 denotes a fuse positioning plate 2 for preventing erroneous fuse insertion. The fuse positioning plate 2 includes a restriction hole 3 at a position corresponding to each fuse insertion port 5 of the fuse box 4, and each restriction hole 3 has a guide groove 3 a corresponding to the protrusions 1 a, 1 b, 1 c of the fuse 1. 3b, 3c are provided.
[0003]
When each fuse 1 is mounted in the above fuse box 4, the fuse positioning plate 2 is mounted in the surrounding wall 6 of the fuse box 4, and each fuse 1 is inserted into the fuse insertion port 5 through the restriction hole 5 of the fuse positioning plate 2. To do. In this case, when the fuse 1 is inserted into the restriction hole 3 that correctly corresponds to the fuse capacity, the protrusions 1a, 1b, and 1c pass through the guide grooves 3a, 3b, and 3c and are smoothly inserted into the fuse insertion ports 5. The However, when the fuse 1 is inserted into the wrong restriction hole 3, the protrusion and the guide groove interfere with each other and cannot pass through the restriction hole 3, and cannot be inserted into the fuse insertion slot 5. Can be prevented. (See Japanese Utility Model Publication No. 62-15959).
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 62-15959 [0005]
[Problems to be solved by the invention]
By the way, in recent automobile fuse boxes, blade-type fuses 7 as shown in FIGS. 10A and 10B are used in large quantities as a standard, but blade-type fuses 7 used in automobiles are generally used as The same shape is used regardless of the fuse capacity, and the cover case 8 has a different color for each fuse capacity, and the capacity is displayed on the upper surface, thereby enabling identification of each fuse capacity.
Therefore, when this type of blade-type fuse 7 is mounted in a fuse box, the fuse 7 has the same shape regardless of the fuse capacity, and therefore, a fuse error caused by the projections 1a, 1b, 1c and the fuse positioning plate 2 as described above. An insertion prevention structure cannot be adopted. For this reason, in the case of this type of blade-type fuse, for example, while looking at the fuse capacity display in the vicinity of the fuse insertion port of the fuse box, it is an operation of inserting into a predetermined fuse insertion port corresponding to the fuse, There is a problem that it is difficult and efficient to operate quickly, and that a fuse is likely to be erroneously inserted.
[0006]
The present invention has been made to eliminate the above-mentioned conventional drawbacks. When all the fuses mounted in the fuse box have the same shape regardless of the fuse capacity, a plurality of fuses having different fuse capacities are respectively handled. An object of the present invention is to provide a fuse box insertion prevention jig for a fuse box that can be inserted into a fuse insertion port without error, and a fuse insertion method.
[0007]
[Means for Solving the Problems]
According to the first aspect of the present invention for solving the above-mentioned problem, when a plurality of fuses having the same shape and different capacities are inserted into the fuse insertion port of the fuse box, the fuse to be inserted into the fuse insertion port is It is a fuse incorrect insertion prevention jig for preventing a different capacity fuse from being erroneously inserted,
It consists of n plates equal to the capacity type n, the first plate has a fuse through hole corresponding to the fuse insertion slot into which the first capacity fuse is inserted, and the second plate has the first capacity and A fuse through hole corresponding to a fuse insertion slot into which each fuse of the second capacity is inserted is provided. Similarly, each of the fuses of the first, second,..., Nth capacity is inserted into the nth plate. A fuse through hole corresponding to the fuse insertion port is provided.
[0008]
A second aspect of the present invention is characterized in that the plurality of plates in the erroneous fuse insertion preventing jig of the first aspect are bound together in ascending order of the number of fuse through holes.
[0009]
According to a third aspect of the present invention, the number of fuses M1 of the first capacitor, the number of fuses M2 of the second capacitor,..., The number Mn of fuses of the nth capacitor are: M1 ≦ M2 ≦... ≦ Mn.
[0010]
According to a fourth aspect of the present invention, in the kth plate other than the first plate of the erroneous fuse prevention jig according to the first aspect, at the edge of the fuse through hole corresponding to the fuse of the kth capacity, or other A distinguishing mark for distinguishing the two from each other is provided at the edge of the fuse through hole.
[0011]
Claim 5 has a fuse through hole corresponding to the fuse insertion port of all fuses in the fuse erroneous insertion prevention jig of claim 1, and a capacity check for confirming the capacity type at the edge of each fuse through hole. It is characterized by providing a final confirmation plate having a mark for use.
[0012]
Claim 6 is a fuse box fuse insertion method for inserting a plurality of fuses having the same shape and different capacities into the fuse insertion opening of the fuse box using the fuse erroneous insertion prevention jig of claim 1,
First, position and place the first plate on the fuse group mounting surface of the fuse box, and insert the fuse of the first capacity into the fuse insertion slot at the position of each through hole of the first plate.
Next, the second plate is positioned and placed on the fuse group mounting surface of the fuse box, and the fuse of the second capacity is inserted into the open hole of each fuse through hole of the second plate. ,
In the same manner, the nth plate is positioned on the fuse group mounting surface of the fuse box, and the nth capacity fuse is inserted into the fuse insertion hole of each fuse through hole of the nth plate. Is inserted.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 is a perspective view of a fuse erroneous insertion preventing jig 9 according to an embodiment of the present invention, FIG. 2 is a perspective view of a target fuse box 10, and FIGS. FIGS. 4A to 4E are plan views of the plates 11, 12, and 13 constituting the insertion preventing jig 9. Each fuse 7 (7 a, 7 b, 7 c) is shown in FIG. FIG. 6 is a plan view for explaining a procedure for mounting the to the fuse box 10.
[0014]
The fuse box 10 of the embodiment shown in FIG. 2 has a fuse insertion port 19a for inserting a 10A (ampere) fuse 7a and a fuse 7b for inserting a 20A fuse on the upper surface (fuse group mounting surface) 10a. Two insertion ports 19b and three fuse insertion ports 19c for inserting 15A fuses 7c are provided, a total of six fuse insertion ports. Further, plate positioning frames 20 are provided at the four corners on the upper surface side of the fuse box 10. A pair of positioning frames 20 on one side is integrally provided with a mounting bracket 21 on the vehicle body side.
[0015]
The six fuses 7 (7a, 7b, 7c) to be mounted on the fuse box 10 are all the blade-type fuses 7 shown in FIG. 10, and as described above, the fuse capacities are 10A, 20A, 15A 3 All types have the same shape. The difference in fuse capacities of the fuses 7 can be identified by making the cover case 8 a different color and displaying the capacity printed on the upper surface.
[0016]
The fuse erroneous insertion preventing jig 9 includes three plates 11, 12, and 13 shown in FIGS. 3 (a), (b), and (c) corresponding to three types of fuses 7a, 7b, and 7c having different fuse capacities. It has become. The first plate 11 includes one fuse through hole 15a corresponding to one fuse insertion port 19a into which a 10A fuse (first capacity fuse) 7a is inserted. The second plate 12 has three fuses corresponding to three fuse insertion openings 19a and 19b into which three fuses 7a and 7b, which are a combination of a 10A fuse 7a and a 20A fuse (second capacity fuse), are inserted. A through hole 15b is provided. The third plate 13 has six fuse insertion holes into which six fuses 7a, 7b, and 7c, which are a combination of a 10A fuse 7a, a 20A fuse 7b, and a 15A fuse (a third capacity fuse) 7c, are inserted. Six fuse through holes 15c corresponding to 19a, 19b, and 19c are provided.
Each plate 11, 12, 13 has substantially the same shape as the rectangular upper surface 10 a of the fuse box 10, but includes projections 11 a, 12 a, 13 a that fit between a pair of positioning frames 20 on the left and right sides. ing. Further, as shown in FIG. 1, the first and second plates 11, 12, and 13 are bound by the ring-shaped member 16 in the order of the first plate 11, the second plate 12, and the third plate 13.
[0017]
The procedure for mounting the six fuses 7a, 7b, and 7c on the fuse box 10 using the erroneous fuse insertion preventing jig 9 will be described. FIG. 4 (a) is a plan view of the fuse box 10 (the bracket 21 is omitted). It is. When the first plate 11 is placed on the upper surface 10a of the fuse box 10 so as to be accommodated in the positioning frames 20 at the four corners, one fuse through hole 15a of the first plate 11 and one for the 10A fuse of the fuse box 10 are provided. The two fuse insertion holes 19a coincide with each other (see FIGS. 4B and 5). Therefore, when the 10A fuse 7a is inserted into the fuse insertion opening at the position of the fuse through hole 15a, the 10A fuse 7a is inserted into the fuse insertion opening 19a that correctly corresponds to the fuse capacity.
Next, when the first plate 11 is removed and the second plate 12 is similarly placed on the upper surface 10a of the fuse box 10, it is inserted into one of the three fuse through holes 15b of the second plate 12 first. The inserted fuse 7a is inserted, and the remaining two fuse through holes 15b are vacant (see FIG. 4C). Since the two empty fuse through holes 15b coincide with the two fuse insertion openings 19b for the 20A fuse of the fuse box 10, the fuse 7b of 20A is inserted into the fuse insertion opening at the position of the two fuse through holes 15b. Is inserted, the two fuses 7b of 20A are inserted into the fuse insertion port 19b corresponding to the fuse capacity correctly.
Next, when the second plate 12 is removed and the third plate 13 is similarly placed on the upper surface 10a of the fuse box 10, three of the six fuse through holes 15c of the third plate 13 have the tip. The fuses 7a and 7b inserted into the are inserted, and the remaining three fuse through holes 15c are vacant (see FIG. 4D). Since the three empty through holes 15c correspond to the three fuse insertion holes 19c for the 15A fuse of the fuse box 10, a 15A fuse 7c is inserted into the fuse insertion opening at the position of the three fuse through holes 15c. Is inserted, the three fuses 7c of 15A are inserted into the fuse insertion port 19c corresponding to the fuse capacity correctly.
Thus, as shown in FIG. 4E, all of the six fuses 7a, 7b, and 7c are inserted into the fuse insertion ports 19a, 19b, and 19c that correctly correspond to the respective fuse capacities.
[0018]
When inserting a fuse having a specific fuse capacity in the above-described fuse insertion work, if the selected plate is not mistaken, then the work to be performed is uniquely determined, and the correct fuse insertion is almost inevitably performed. Therefore, a plurality of fuses having the same shape and different fuse capacities can be inserted without error into the fuse insertion slot corresponding to the fuse capacities.
Further, as a measure for preventing erroneous insertion of the fuse, it is only necessary to prepare the erroneous insertion prevention jig 9, and it is not necessary to add a function for preventing erroneous insertion of the fuse to the fuse box side, which is convenient.
In addition, since it can be inserted without error by simply inserting a fuse through the open hole in the plate, it does not require special attention compared to the conventional method of inserting a fuse while looking at the fuse capacity display on the fuse box. Can be inserted quickly, and work efficiency is greatly improved.
[0019]
In the above-described embodiment, the number of fuses 7a inserted in the first plate 11 is one (M1 = 1), the number of fuses 7b inserted in the second plate 12 is two (M2 = 2), As the number of fuses 7c inserted in the third plate 13 is three (M3 = 3), the number of fuses inserted first is reduced, so that the possibility of erroneous insertion of fuses is further reduced. . In other words, if there are a large number of fuses to be inserted first, if you forget to insert one fuse in the previous plate, for example, if you forget to insert one fuse, insert fuses in all the open holes in the subsequent plate. When it is inserted (it is not mistaken as an operation to be performed at this stage), another fuse with a mismatched capacity is inserted instead of the one forgotten fuse. Therefore, it is preferable to reduce the number of fuses to be inserted first to minimize the possibility of forgetting to insert a fuse. However, in practice, it is considered very rare that the vacant fuse insertion opening is missed. Therefore, if the selection of the plate is not made mistakenly, substantially no erroneous insertion occurs. In particular, as shown in FIG. 1, if the plates 11, 12, and 13 are bound together in ascending order of the fuse insertion opening, there is no possibility of erroneous plate selection, and erroneous fuse insertion does not occur.
[0020]
As described above, in the embodiment, the first, second, and third plates are arranged in order of decreasing number of fuses of the same type (same fuse capacity) (M1 <M2 <M3). As shown in (a), (b), and (c), for example, the order of fuse capacity may be used. That is, the first plate 11 ′ is for a 10A fuse, the second plate 12 ′ is for a 15A fuse, and the third plate 13 ′ is for a 20A fuse. In this case, the first plate 11 ′ has one fuse through hole 15a as described above, but the second plate 12 ′ has four fuse insertion holes (one fuse insertion hole 19a and three fuse insertion holes). 19c) has four fuse through holes 15'b. The third plate 13 ′ has six fuse through holes 15′c corresponding to all the fuse insertion ports 19a, 19b, 19c.
[0021]
Further, as a means for preventing forgetting to insert a fuse, the fuse through hole 15b into which the fuse is to be inserted in the plate 22 as in the plate 22 in FIG. The fuse through hole 15 "b may be enlarged, and vice versa.
[0022]
Further, like the plate 23 in FIG. 7 (b), the periphery of the fuse through hole 15 "b for the previously inserted fuse is colored in the same color as the fuse cover case, and the fuse is inserted first. The fuse insertion port 15 ″ b may be distinguished from the fuse insertion port 15b into which a fuse is to be inserted by its plate. A colored portion (a distinguishing mark) is indicated by 23a. In this case, not only can the forgetting to insert the fuse in the plate 23 be prevented, but also the erroneous insertion of the previously inserted fuse can be easily found. On the contrary, the plate 23 may be colored around the fuse through hole 15b into which the fuse is to be inserted.
Further, as in the plate 24 of FIG. 7C, a fuse capacity (“20A” in the illustrated example) may be described at the edge of the fuse through hole 15b into which the fuse is to be inserted.
[0023]
For final confirmation, a final confirmation plate 26 provided with confirmation holes 25 corresponding to all the fuse insertion ports 19a, 19b, 19c of the fuse box 10 is separately provided as shown in FIG. It may be provided. In this case, capacity confirmation indicators 27a, 27b, 27c for confirming the capacity type are provided at the edge of the confirmation hole 25. The capacity confirmation marks 27a, 27b, and 27c in the illustrated example are colored portions in which the periphery of the confirmation hole 25 is the same color as the cover case of the fuse.
Since the third plate 13 in the embodiment of FIGS. 1 to 4 has all the fuse through holes, a capacity identification mark is provided at the edge of each fuse through hole, and the third plate 13 is finally confirmed. It may also be used as a plate.
[0024]
In the above-described embodiment, the plate positioning frame 20 is provided on the upper surface of the fuse box 10, but as shown in FIG. 9, the positioning frame 20 is provided on the side surface of the plate 11 ′ (only the first plate 11 ′ is shown). 'May be provided. According to this structure, no positioning frame is required on the fuse box 10 side. In addition, various positioning means can be considered.
The fuse box targeted by the present invention is not limited to an independent fuse box, and can naturally be applied to, for example, an electric connection box including an electric circuit unit and various connectors together with a fuse box portion.
[0025]
The fuses targeted by the present invention have the same shape regardless of the fuse capacity, but do not mean that the shapes are strictly the same, and all the fuses are not limited by the shape, and the fuses It means that it can be inserted into any fuse insertion hole of the box.
Further, the erroneous fuse prevention jig of the present invention is not limited to the blade-type fuse of the above-described embodiment, and can be applied to, for example, a fusible link of an automobile.
[0026]
【The invention's effect】
According to the fuse misinsertion prevention jig of the present invention, when the fuse is installed in the fuse box, if the selected plate is not mistaken, the work to be performed is uniquely determined, and the correct fuse is inevitably necessary. Since the insertion is performed, each fuse can be inserted without error into the fuse insertion slot corresponding to the fuse capacity.
In addition, if the plate is selected correctly, the correct fuse can be inserted simply by inserting the fuse from the through-hole of the plate. Compared with the conventional method of inserting the fuse while looking at the fuse capacity display, pay special attention. It does not require depth and can be inserted quickly, greatly improving work efficiency.
Further, as a measure for preventing erroneous insertion of the fuse, it is simple because it is only necessary to prepare an erroneous insertion prevention jig, and it is not necessary to add a function for preventing erroneous insertion of the fuse to the fuse box side.
[0027]
According to the second aspect, if the plates are selected in the binding order, the correct plates are selected, so that there is no possibility of erroneous plate selection and the operation becomes efficient.
[0028]
According to the third aspect, forgetting to insert the fuse when the plate is placed and the fuse is inserted can be minimized.
[0029]
According to the fourth aspect, similarly to the above, it is possible to minimize forgetting to insert the fuse when the plate is placed and the fuse is inserted. In addition, it is possible to easily find an erroneous insertion of a previously inserted fuse.
[0030]
According to the fifth aspect, it is possible to easily confirm whether or not the fuse has been correctly inserted.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a fuse erroneous insertion preventing jig according to an embodiment of the present invention.
2 is a perspective view of a fuse box in which a fuse is to be mounted with the erroneous fuse insertion prevention jig of FIG. 1. FIG.
FIGS. 3A, 3B, and 3C are plan views of first, second, and third plates that constitute the fuse misinsertion prevention jig of FIG. 1, respectively.
4 is a diagram for explaining a procedure for mounting each fuse to a fuse box using the erroneous fuse insertion preventing jig of FIG. 1, and is performed in the order of (a) to (e).
FIG. 5 is a diagram illustrating a situation in which a fuse is to be inserted into a fuse insertion port in the state of FIG. 4B in which a first plate is placed on a fuse box.
FIGS. 6A and 6B show another embodiment of the present invention, and FIGS. 6A and 6B are plan views showing one of plates constituting a fuse misinsertion prevention jig of different embodiments. FIGS. It is.
FIGS. 7A and 7B show a fuse misinsertion prevention jig according to still another embodiment of the present invention. FIGS. 7A, 7B, and 7C show the first and second fuses constituting the fuse misinsertion prevention jig, respectively. It is a top view of 2nd and 3rd each plate.
FIG. 8 is a plan view showing a plate constituting a fuse erroneous insertion preventing jig according to still another embodiment of the present invention.
FIG. 9 is an exploded perspective view of a misfusing prevention jig according to still another embodiment of the present invention.
FIGS. 10A and 10B show a detailed shape of a blade-type fuse mounted on the fuse box, where FIG. 10A is a front view and FIG. 10B is a side view.
FIG. 11 is a perspective view showing a conventional fuse misinsertion prevention structure.
[Explanation of symbols]
7 fuse 7a 10A (ampere) fuse (first capacity fuse)
7b 20A fuse (second capacity fuse)
7c 15A fuse (third capacity fuse)
8a, 8b, 8c Cover case 9 Fuse incorrect insertion prevention jig 10 Fuse box 10a Upper surface (fuse group mounting surface)
11, 11 ′ First plate 12, 12 ′, 22, 23, 24 Second plate 13, 13 ′ Third plate 15a, 15b, 15c Fuse through holes 19a, 19b, 19c Fuse insertion ports 20, 20 ′ Positioning frame 23a Colored part (differentiation indicator)
25 Confirmation hole 26 Final confirmation plate 27a, 27b, 27c Capacity confirmation sign

Claims (6)

When inserting multiple fuses of the same shape and different capacities into the fuse box's fuse insertion slot, make sure that a fuse with a different capacity from that of the fuse to be inserted into the fuse insertion slot is accidentally inserted into the fuse insertion slot. A fuse misinsertion prevention jig for preventing,
It consists of n plates equal to the capacity type n, the first plate has a fuse through hole corresponding to the fuse insertion slot into which the first capacity fuse is inserted, and the second plate has the first capacity and A fuse through hole corresponding to a fuse insertion slot into which each fuse of the second capacity is inserted is provided. Similarly, each of the fuses of the first, second,..., Nth capacity is inserted into the nth plate. A fuse insertion prevention jig for a fuse box, comprising a fuse through hole corresponding to the fuse insertion opening. The jig for preventing erroneous insertion of a fuse in a fuse box according to claim 1, wherein the plurality of plates are bound together in ascending order of the number of through holes. The number M1 of fuses of the first capacitor, the number M2 of fuses of the second capacitor,..., And the number Mn of fuses of the nth capacitor satisfy M1 ≦ M2 ≦. A fuse misinsertion prevention jig for the fuse box according to 1. In the kth plate other than the first plate, a distinguishing indicator for distinguishing the two from each other at the edge of the fuse through hole corresponding to the fuse of the kth capacity or at the edge of the other fuse through hole A fuse erroneous insertion prevention jig for a fuse box according to claim 1, wherein: A final confirmation plate having fuse through holes corresponding to the fuse insertion holes of all fuses and having a capacity confirmation mark for confirming the capacity type is provided at the edge of each fuse through hole. Item 1. An incorrect fuse prevention jig for a fuse box according to Item 1. A fuse box fuse insertion method for inserting a plurality of fuses having the same shape and different capacities into a fuse insertion port of a fuse box using the fuse erroneous insertion prevention jig of claim 1,
First, position and place the first plate on the fuse group mounting surface of the fuse box, and insert the fuse of the first capacity into the fuse insertion slot at the position of each through hole of the first plate.
Next, the second plate is positioned and placed on the fuse group mounting surface of the fuse box, and the fuse of the second capacity is inserted into the open hole of each fuse through hole of the second plate. ,
In the same manner, the nth plate is positioned on the fuse group mounting surface of the fuse box, and the nth capacity fuse is inserted into the fuse insertion hole of each fuse through hole of the nth plate. A method for inserting a fuse into a fuse box, comprising inserting a fuse.

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