JP4766843B2 - Wiring bracket for battery terminals - Google Patents

Description

  The present invention relates to a battery wiring fitting that is detachably attached to a rod-shaped power supply terminal of a car battery.

15 and 16 show representative examples of conventional wiring fittings.
FIG. 15 is a front view showing a state in which the wiring fitting 100 is attached to the battery-shaped feeding terminal B of the battery, and FIG. 16 is a top view of the wiring fitting 100.
In addition, the outer diameter of the power supply terminal B is not uniform, and is somewhat tapered toward the tip.

The wiring fitting 100 includes a fastening bolt 102 in which a cylindrical portion 101a of a fitting main body obtained by bending a metal strip into an approximately omega shape is externally fitted to the power supply terminal B and inserted into both leg portions 101b and 101b. In addition, the nut 103 is fixed by screwing.
A pair of caulking pieces for caulking and fixing a wiring (not shown) to be connected is provided in a protruding manner at the tip of one leg portion 101 b, and the caulking pieces serve as wiring terminals 104.

Utility model registration No. 3097397 Utility model registration No. 3099596

  The conventional type metal fitting 100 shown in FIG. 16 has its cylindrical portion 101 a fitted on the power supply terminal B, and then fastened and fixed with bolts 102 and nuts 103. At that time, it is necessary to engage a manual tool such as a wrench with the nut 103 screwed to the lateral fastening bolt 102 and to swing it up and down a plurality of times.

However, in an automobile assembly line, the wiring fitting 100 is attached to a battery that is already installed in the engine room. Therefore, the tightening operation described above is performed by inserting a hand into a narrow space crowded with miscellaneous parts. It's hard to start.
In addition, the operation of swinging the tool held in the hand up and down is extremely inefficient, and is problematic from the viewpoint that the individual work processes are performed cooperatively on the assembly line.

  Therefore, an object of the present invention is to improve the battery terminal so that the work of screwing and fixing the wiring fitting to the power supply terminal of the battery already installed in the engine room on the assembly line of the automobile can be performed as easily and quickly as possible. To provide wiring brackets for use.

In order to achieve the above object, the wiring bracket for battery terminals according to the present invention is:
A metal fitting body in which a wiring terminal is attached to an external fitting cylinder shaped like a metal strip bent into an almost omega shape for external fitting to a battery rod-shaped power supply terminal,
A conical cylinder that has a shape like a metal strip bent in an approximately omega shape and has a nut held in its inner space, and is reduced in diameter upward;
A connecting portion for connecting and combining each set of free ends of the external fitting cylinder and the conical cylinder;
A tightening cap having a trapezoidal notch with a lateral width narrowing upward to sandwich one set of connecting portions, and covering the conical cylinder;
A fastening bolt that passes through the fastening cap and is screwed into the nut in the conical cylinder;
It is characterized in that two lateral slits are provided facing each other at intermediate height positions across the outer fitting cylinder, the connecting portion, and the conical cylinder.
Further, the invention is characterized in that a projection for inserting into the slit is provided on the outer peripheral surface of the nut.
Alternatively, a metal fitting body in which a wiring terminal is attached to an external fitting cylinder shaped like a metal strip bent into a substantially omega shape for external fitting to a rod-shaped power supply terminal of a battery;
A conical cylinder that has a shape like a metal strip bent into an approximately omega shape and is reduced in diameter upward;
A connecting portion for connecting and combining each set of free ends of the external fitting cylinder and the conical cylinder;
A tightening cap having a trapezoidal notch with a lateral width narrowing upward to sandwich one set of connecting portions, and covering the conical cylinder;
A clamping bolt that is gripped by the inner space of the conical cylinder and provided with a protrusion on the outer peripheral surface;
And a nut that is screwed into the upper end of the tightening bolt that protrudes above the tightening cap, and is rotatably assembled to the top surface of the tightening cap.

The wiring fitting for battery terminals according to the present invention has the following advantages.
(A) On the assembly line of an automobile, when fixing the wiring bracket to the power supply terminal of the battery installed in the engine room with screws, the bolts and nuts are not oriented sideways as in the conventional case. Has been placed.
(B) Therefore, the bolt head (or nut) located on the upper end side of the bolt is not obstructed by the parts scattered around the periphery from above using an electric tool or the like, It can be turned easily and quickly.
(C) The external fitting cylinder can be easily and reliably fastened to the power supply terminal by the laterally provided slits straddling the external fitting cylinder, the connecting portion, and the conical cylinder.
(D) The nut (or bolt) is housed in the conical cylinder, and the assembling work can be completed only by inserting the protrusion on the outer peripheral surface into the slit.

Hereinafter, an embodiment of a wiring fitting for a battery terminal according to the present invention will be described with reference to FIGS.
1 is a side view of the wiring fitting A partially shown in a longitudinal section, FIG. 2 is a top view of FIG. 1, and FIG. 3 is a longitudinal sectional view taken along line WW of FIG. These are the cross-sectional views which follow the VV line | wire of FIG. 1, and have shown the state by which the connection parts 40 and 40 were clamped by the trapezoidal notch 51 of the cap 50 for fastening.
FIG. 5 is a side view showing a state in which the fastening cap 50 and the fastening bolt 60 are removed from the wiring fitting A, and FIG. 6 is a top view of FIG.

  The overall configuration of the wiring fitting A of this embodiment is such that a fitting body 10 in which a wiring terminal 12 is attached to an external fitting cylinder 11 to be fitted on a rod-shaped power supply terminal B, and a nut 30 is held in the inner space thereof. In addition, the conical cylinder 20 that is reduced in diameter upward, the one set of connecting portions 40 and 40 that connect and unite each set of free ends of the external fitting cylinder 10 and the conical cylinder 20, and the connecting portions 40 and 40. A trapezoidal cutout 51 for sandwiching the conical cylinder 20, and a fastening cap 50 that covers the conical cylinder 20, and a fastening bolt that passes through the fastening cap 50 and is screwed into the nut 30 in the conical cylinder 20 60.

Specific forms of these constituent members will be sequentially described below.
First, as shown in FIGS. 1 to 4, the metal fitting body 10 is caulked and connected to an external fitting cylinder 11 having a shape in which a metal strip is bent into an approximately omega shape for external fitting to the power feeding terminal B. The wiring terminal 12 having the portion 12a is integrally connected.

  The conical cylinder 20 also has a shape such that the metal strip is bent in an approximately omega shape, but has a smaller diameter than the outer fitting cylinder 11. Then, the diameter is gradually reduced toward the upper end side.

Each of the outer fitting tube 10 and the conical tube 20 each having a substantially omega shape when viewed from the top includes a pair of free ends provided in each of the connecting portions 40 and 40 in the form of strip pieces. Are connected together.
As shown in FIGS. 1 and 3, in a state of straddling the outer fitting tube 10, the connecting portion 40, and the conical tube 20, two sideways slits 13 at the intermediate height positions thereof. , 13 are provided opposite to each other.

Next, as shown in FIGS. 7 and 8, the tightening cap 50 is formed in a cylindrical cap shape.
Then, as shown in FIG. 8, a trapezoidal notch 51 whose lateral width gradually narrows toward the upper end side is inserted into one portion of the peripheral wall of the tightening cap 50, as shown in FIG. It is provided in a cut shape from the side.
A bottle hole 52 through which the fastening bolt 60 is inserted is provided on the top surface.

As shown in FIG. 9, the tightening bolt 60 of this embodiment is made by a method of fixing a state in which a nut-like bolt head 62 is fitted to the upper end of the screw 61 by caulking means.
A retaining ring 63 projects from the outer peripheral surface of the screw 61 at a position below the bolt head 62.

Next, as shown in FIG. 10, the nut 30 is formed in a cylindrical shape having a size that can be fitted into the inner space of the conical cylinder 20.
A semi-annular protrusion 31 is provided on the outer peripheral surface of the nut 30 so as to be inserted into the slit 13.

Next, an example of the procedure for assembling the wiring fitting A from each of the above constituent members will be described.
First, as shown in FIG. 5, the protrusion 31 is inserted into the slit 13 while the nut 30 is inserted into the inner space of the conical cylinder 20.
The nut 30 is fixed to the inner space of the conical cylinder 20 in a non-rotating state only by performing this simple operation.

On the other hand, the screw 61 of the tightening bolt 60 is inserted into the bottle hole 52 of the tightening cap 50 from below, and the nut-shaped bolt head 62 fitted to the upper end of the protrusion is screwed into the screw 61 by caulking means. Secure.
As a result, as shown in FIG. 1, the fastening bolt 60 is united with the fastening cap 50 in a rotatable state.

  Thereafter, when the fastening cap 50 is covered with the conical cylinder 20 and the fastening bolt 60 is half screwed into the nut 30, the assembly work of the wiring fitting A is completed.

Next, the procedure for attaching the wiring fitting A to the battery power supply terminal B already installed in the engine room of the automobile and the operation of the wiring fitting A will be described.
In the wiring fitting A, the external fitting cylinder 11 is externally fitted to the power supply terminal B in a state in which the fastening bolt 60 is loosened at the time of purchase (see FIG. 1).

After that, the fastening bolt 60 is tightened.
At this time, the tightening bolt 60 is arranged not vertically but vertically, unlike the conventional type wiring fitting 100 shown in FIGS. 15 and 16, and above the bolt head 62. There are no obstacles that obstruct the fastening operation, except for the open hood.

  For this reason, tightening almost instantaneously using a power tool that is tightened by hitting the bolt head from above, such as an electric drill, or using a rotating tool with a structure similar to a screwdriver. The tightening operation of the bolt 60 can be completed.

When the fastening bolt 60 is screwed into the nut 30 in this manner, the fastening cap 50 is pushed down by the bolt head 62 as understood from FIG.
Accordingly, the inner peripheral surface of the tightening cap 50 tightens the outer peripheral surface of the conical cylinder 20.

Then, as shown in FIGS. 4 and 8, the trapezoidal notch 51 of the tightening cap 50 sandwiching the connecting portions 40, 40 between the outer fitting cylinder 11 and the conical cylinder 20 is connected to the connecting portions 40, 40. It acts to narrow the facing distance.
This acting force reduces the diameter of the outer fitting cylinder 11 fitted to the power supply terminal B in a state of being integrally connected to the connecting portions 40 and 40 and tightens the power supply terminal B.

  The diameter-reducing movement of the outer fitting cylinder 11 can be performed more easily and reliably by providing the two slits 13 across the outer fitting cylinder 10, the connecting portion 40, and the conical cylinder 20. Become.

Next, FIGS. 11 to 14 show another embodiment in which the above structure of the wiring fitting A is partially changed.
That is, in this partially modified embodiment, the tightening bolt 60 is held in the inner space of the conical cylinder 20 as shown in FIG. The fastening bolt 60 is a screw 61 itself without a bolt head 62.
As shown in FIG. 12, this fastening bolt 60 is also provided with a protrusion 64 on the outer peripheral surface.

As shown in FIG. 13, the nut 30 is rotatably assembled in a nut assembly hole 53 provided on the top surface of the tightening cap 50.
As shown in FIG. 14, the nut 30 is screwed into the upper end portion of the tightening bolt 60 protruding above the tightening cap 50.

  The mounting method and function of the wiring fitting A of the partially modified embodiment shown in FIGS. 11 to 14 are not substantially different from those of the wiring fitting A having the structure shown in FIGS.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is a side view partially showing a wiring fitting in a longitudinal section. FIG. 2 is a top view of FIG. It is a longitudinal cross-sectional view which follows WW of FIG. 2 same as the above. It is a cross-sectional view which follows the VV line of FIG. 1 same as the above. It is a side view which shows the state which removed the conical cylinder and the clamping bolt from the metal fitting main body same as the above in the longitudinal section. FIG. 6 is a top view of FIG. FIG. 3 is a side view of the tightening cap in a half cross-sectional view. It is a sketch which shows the state which pinched | interposed the connection part in the trapezoidal notch part of the fastening cap same as the above. FIG. 3 is a side view of the tightening bolt in a half cross-sectional view. They are a perspective side view (a), a half sectional view side view (b), and a top view (c) of the nut. FIG. 6 is a view corresponding to FIG. 5, showing a modification of the wiring fitting according to the present invention. It is a side view of a fastening bolt same as the above. FIG. 5 is a side view in half section in the state in which the nut is assembled to the top surface of the conical cylinder. FIG. 5 is a half sectional side view in a state where the nut is screwed into the tightening bolt. It is a side view of the state which showed the prior art example and attached the metal fitting to the electric power feeding terminal of a battery. It is a top view of a wiring metal fitting same as the above.

Explanation of symbols

A Wiring bracket B Battery power supply terminal 10 Bracket body 11 External fitting cylinder 12 Wiring terminal 12a Caulking connection part 13 Slit 20 Conical cylinder 30 Nut 31 Projection part 40 Connection part 50 Tightening cap 51 Trapezoidal notch 52 Bolt hole 53 Nut assembly Attached hole 60 Clamping bolt 61 Screw 62 Bolt head 63 Retaining ring 64 Protrusion 100 Conventional wiring fitting 101a Cylindrical part 101b Both leg parts 102 Tightening bolt 103 Nut 104 Wiring terminal

Claims (3)

A metal fitting body in which a wiring terminal (12) is attached to an outer fitting tube (11) shaped like a metal strip bent into a substantially omega shape for fitting to a battery rod-shaped power supply terminal (B). (10) and
A conical cylinder (20) having a shape such as a metal strip bent into an approximately omega shape and having a nut (30) gripped in its inner space, and being reduced in diameter upward;
A connecting portion (40) for connecting / merging each set of free ends of the outer fitting cylinder and the conical cylinder;
A tightening cap (50) having a trapezoidal notch (51) with a lateral width narrowing upward for sandwiching the pair of connecting portions, and covering the conical cylinder;
A fastening bolt (60) that penetrates the fastening cap and is screwed into the nut in the conical cylinder;
A battery terminal characterized in that two lateral slits (13) are provided opposite to each other at an intermediate height position across the outer fitting cylinder, the connecting portion, and the conical cylinder. Wiring bracket for use. The wiring fitting for battery terminals according to claim 1 , wherein a protrusion (31) for inserting into the slit is provided on an outer peripheral surface of the nut. A metal fitting body in which a wiring terminal (12) is attached to an outer fitting tube (11) shaped like a metal strip bent into a substantially omega shape for fitting to a battery rod-shaped power supply terminal (B). (10) and
A conical cylinder (20) having a shape that is formed by bending a metal strip into an approximately omega shape and having a diameter reduced upward;
A connecting portion (40) for connecting / merging one set of free ends of the outer fitting cylinder and the conical cylinder;
A tightening cap (50) having a trapezoidal notch (51) with a lateral width narrowing upward for sandwiching the pair of connecting portions, and covering the conical cylinder;
A clamping bolt (60) gripped by the inner space of the conical cylinder and provided with a protrusion (64) on the outer peripheral surface;
A nut (30) threadedly engaged with an upper end portion of the tightening bolt protruding above the tightening cap, and rotatably assembled to a top surface of the tightening cap. Wiring fitting for battery terminals.

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