JPH10302758A - Terminal for battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal for a battery which is ease to be fastened and fixed in even a narrow space by making terminal fastening possible from the axial direction of the battery electrodes. SOLUTION: This terminal 31 for a battery is provided with an electrode holding part 39, a substrate part 33 and a fastening plate part 41 formed continuously from the electrode holding part 39, and a bolt 49 and a nut 55 to fasten the substrate part 33 and the fastening plate part 41. In this case, a bolt-side lever rod 51, a bolt-side joining rod 53, a nut-side lever rod 57, a nut-side joining rod 59, and a joining axis 61 are installed: one end of the bolt-side lever rod 51 is fixed in the bolt 49 in the rectangular direction; one end of the joining rod 53 is joined with the other end of the bolt-side lever rod 51 in the same direction as that of the bolt axis in a freely rotatable manner; one end of the nut-side lever rod 57 is fixed in the nut 55 in the direction at right angles to the bolt axis, one end of the nut-side joining rod 59 is joined to the other end of the nut-side lever rod 57 in the same direction as that of the bolt axis in a freely rotatable manner; and the other end sides of the nut-side joining rod 59 and the bolt-side joining rod 53 are joined through the joining axis 61 in a freely rotatable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery terminal mounted and fixed to an electrode of a battery mounted on a vehicle or the like.

[0002]

2. Description of the Related Art Conventionally, this type of battery terminal has a structure as shown in FIG. 5 (Japanese Utility Model Laid-Open No. 55-124173). Battery terminal (hereinafter simply referred to as “terminal”) 1 disclosed herein
Is composed of a central substrate portion 3, an electric wire connection portion 7 for an electric wire 5 formed at one end of the substrate portion 3, an electrode grip portion 9 formed in a substantially cylindrical shape at the other end of the substrate portion 3, and an electrode grip portion 9. It has a fastening plate portion 11 which is extended and formed so as to face the substrate portion 3. After the electrode holding portion 9 is fitted to the electrode 15 of the battery 13, the substrate portion 3 and the fastening plate portion 11 Holes 1 provided in each
7, a nut 23 is fastened to the bolt 19 using an impact wrench 21.
Was fixed.

[0003]

However, in the conventional terminal 1 described above, the board surfaces of the board portion 3 and the tightening plate portion 11 are vertically aligned in the same direction as the electrode fitting portion formed by the electrode grip portion 9. The substrate part 3 and the fastening plate part 1
1 is horizontal with respect to the direction of bolting.
Therefore, in a narrow space such as an engine room of a vehicle in which various types of parts are mixed, when the wrench 21 is tilted in the horizontal direction and tightened, there is interference with the battery main body and peripheral parts, and the terminal 1 is disconnected. The workability for fastening is poor, and the interference may cause a short circuit between the electrodes 15. In order to solve these problems, it is necessary to secure a sufficient space for terminal tightening when designing the layout of the engine room, and there is a problem in that valuable space is wasted in a narrow engine room.
The present invention has been made in view of the above circumstances, and provides a battery terminal that can easily tighten and fix a terminal even in a narrow space by performing terminal tightening in the axial direction of a battery electrode, thereby improving terminal tightening workability. The purpose is to plan.

[0004]

In order to achieve the above object, a battery terminal according to the present invention has a configuration in which a substantially cylindrical electrode gripping portion is opened by a fastening gap that divides a part of the circumference. A substrate portion and a clamping plate portion extending to both ends of the electrode gripping portion sandwiching the clamping gap, a bolt penetrating the substrate portion and the clamping plate portion, and a nut screwed to the bolt were provided. In the battery terminal, a bolt-side lever rod having one end fixed to the bolt in a direction perpendicular to the bolt axis, and one end rotatable at the other end of the bolt-side lever rod in the same direction as the bolt axis. A connected bolt-side connecting rod, a nut-side lever having one end fixed to the nut in a direction perpendicular to the bolt axis, and one end turned around the other end of the nut-side lever with an axis in the same direction as the bolt axis. Nut side connecting rod movably connected And it is characterized by comprising a connecting shaft the other ends of the nut-side connecting rod and the bolt-side connection rod rotatably connected to. The battery terminal has a bolt-side auxiliary rod having one end rotatably connected to the bolt, and one end rotatably connected to the other end of the bolt-side auxiliary rod with an axis in the same direction as the bolt shaft. A bolt-side auxiliary connecting rod, a nut-side auxiliary rod having one end rotatably connected to the bolt, and one end rotatably connected to the other end of the nut-side auxiliary rod with an axis in the same direction as the bolt shaft. A nut-side auxiliary connecting rod may be provided, and the other ends of the nut-side auxiliary connecting rod and the bolt-side auxiliary connecting rod may be rotatably connected to the connecting shaft.

[0005] In the battery terminal constructed as described above, the bolt-side lever rod is fixed to the bolt, while the nut-side lever rod is fixed to the nut, and the bolt-side connecting rod and the nut-side lever are fixed to the ends of these lever rods. By connecting the connecting rods and connecting the ends of these connecting rods with a connecting shaft, the bolt-side lever and the nut-side lever are connected by a link mechanism, and the pressing force of the connecting shaft is tightened by the bolts and nuts. It can be converted to force. Further, in a battery terminal provided with a bolt-side auxiliary rod, a bolt-side auxiliary connection rod, a nut-side auxiliary rod, and a nut-side auxiliary connection rod, the link mechanism has a pantograph shape, increasing rigidity, and reducing the pressing force of the connection shaft. Conversion to the nut tightening force is performed stably.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a battery terminal according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is an exploded perspective view of a battery terminal according to the present invention, and FIG. 2 is a perspective view of a state where the battery terminal of FIG. 1 is mounted on a battery. The battery terminal 31 according to the present embodiment includes
3, an electric wire connection portion 37 for an electric wire 35 formed at one end of the substrate portion 33, an electrode grip portion 39 formed in a substantially cylindrical shape at the other end of the substrate portion 33, and a tightening extending from the electrode grip portion 39. The fastening plate 41 formed so as to face the substrate 33 with the gap 40 interposed therebetween is configured similarly to a conventional battery terminal.

On the other hand, after the electrode grip portion 39 is fitted to the electrode (post) 45 of the battery 43, a bolt 49 is inserted into holes 47 provided in the substrate portion 33 and the fastening plate portion 41, respectively. However, one end of the bolt lever lever 51 is fixed to the bolt 49 in a direction perpendicular to the bolt axis. One end of a bolt-side connecting rod 53 is rotatably connected to the other end of the bolt-side lever rod 51 about an axis in the same direction as the bolt axis. One end of a nut-side lever 57 is fixed to the nut 55 screwed to the bolt 49 in a direction perpendicular to the bolt axis. One end of a nut-side connecting rod 59 is rotatably connected to the other end of the nut-side lever rod 57 about an axis in the same direction as the bolt axis. The other end of the nut-side connecting rod 59 and the other end of the bolt-side connecting rod 53 are rotatably connected by a connecting shaft 61 which is an axis in the same direction as the bolt shaft.

Further, in this embodiment, the bolt head 49
a to the bolt 49 between the a
3 is rotatably inserted through one end. One end of a bolt-side auxiliary connecting rod 65 is rotatably connected to the other end of the bolt-side auxiliary rod 63 about an axis in the same direction as the bolt axis. Also,
One end of a nut-side auxiliary rod 67 is rotatably inserted into a bolt 49 between the nut 55 and the tightening plate portion 41. The other end of the nut-side auxiliary rod 67 is connected to the nut-side auxiliary connecting rod 69.
Is rotatably connected to a shaft in the same direction as the bolt shaft. The other ends of the nut-side auxiliary connecting rod 69 and the bolt-side auxiliary connecting rod 65 are rotatably connected to the connecting shaft 61 described above.

That is, the bolt-side lever rod 51, the bolt-side connecting rod 53, the bolt-side auxiliary rod 63, and the bolt-side auxiliary connecting rod 6
5 and the nut-side lever rod 57, the nut-side connecting rod 59, the nut-side auxiliary rod 67, and the nut-side auxiliary connecting rod 69 are shown in FIG.
As shown in FIG. 2, a pair of pantograph-shaped link mechanisms is configured.

The operation of the battery terminal 31 constructed as described above will be described with reference to FIGS. 2, 3 and 4. FIG. 3 is an explanatory view showing a state before tightening of the battery terminal of FIG. 1 in a side view (A) and a plan view (B). FIG. 4 is a side view showing a state after tightening of the battery terminal in FIG. FIG. 4 is an explanatory diagram shown in plan view (B). In FIGS. 3 and 4, for convenience of explanation, the auxiliary rod 6 on the bolt side is used.
3, the bolt-side auxiliary connecting rod 65, the nut-side auxiliary connecting rod 67, and the nut-side auxiliary connecting rod 69 are omitted. Before the battery terminal 31 is mounted on the electrode 45 erected on the battery 43, the bolt-side lever 51 and the nut-side lever 57 are set in an upright state as shown in FIG. In this state, the battery terminal 31 has a tightening gap 4 between the tightening plate portion 41 and the substrate portion 33 such that the inner diameter of the electrode grip portion 39 substantially matches the outer diameter of the electrode 45.
0 has been set.

The battery terminal 31 in this state
Is fitted into the electrode 45 by inserting the electrode grip 39. Next, the connecting shaft 61 is pressed down in the axial direction of the electrode 45.
Then, as shown in FIG. 4, the angle formed between the bolt-side lever rod 51 and the bolt-side connecting rod 53 decreases from an obtuse angle to an acute angle. Thereby, the bolt 49 fixed to one end of the bolt-side lever rod 51 is rotated in the tightening direction (the direction of arrow a in FIG. 2). At this time, the bolt 49 is rotated by the lever action via the bolt-side lever 51.

At the same time, the angle between the nut-side lever 57 and the nut-side connecting rod 59 decreases from an obtuse angle to an acute angle.
Thus, the nut 55 fixed to one end of the nut-side lever 57 is rotated in the tightening direction (the direction of the arrow b in FIG. 2). At this time, the nut 55 is also rotated by leverage via the nut-side lever rod 57.

That is, when the connecting shaft 61 is pressed in the direction of the electrode 45, the bolt lever lever 51 fixed to the bolt 49 via the link mechanism and the nut lever lever 57 fixed to the nut 55 are opposed. Is rotated in the direction
And the fastening plate 41 are fastened in the approaching direction. As a result, the tightening gap 40 is reduced, and the electrode grip 3
9 is pressed against the outer periphery of the electrode 45, and the mounting of the battery terminal 31 to the electrode 45 is completed.

In order to detach the battery terminal 31 from the electrode 45, the connecting shaft 61 is pulled upward in the axial direction of the electrode 45. As a result, the bolt-side lever rod 51 and the nut-side lever rod 57 are rotated in the releasing direction by the operation opposite to the above, the tightening gap 40 is widened, and the pressure contact of the electrode gripping portion 39 with the electrode 45 is released. The battery terminal 31 is detached from the electrode 45.

As described above, according to the battery terminal 31 described above, the bolt-side lever rod 51 is fixed to the bolt 49, while the nut-side lever rod 57 is fixed to the nut 55. The bolt-side connecting rod 53 and the nut-side connecting rod 59 are connected to the ends of
Since the ends of 3 and 59 are connected by the connecting shaft 61, the connecting shaft 61 is pressed down in the axial direction of the electrode 45, and the bolt 4 is pressed.
9. The nut 55 can be tightened at the same time, and can be easily attached to the electrode 45 even in a narrow space.

Further, the battery terminal 31 according to the above-described embodiment is provided with the bolt-side auxiliary rod 63, the bolt-side auxiliary connection rod 65, the nut-side auxiliary rod 67, and the nut-side auxiliary connection rod 69, so that the rigidity is high. A link mechanism can be configured, and the pressing force of the connecting shaft 61 can be stably converted into the tightening force of the bolt 49 and the nut 55.

Further, according to the battery terminal 31, the insertion of the electrode gripping portion 39 into the electrode 45 and the pressing of the connecting shaft 61 for tightening can be performed in the same direction, so that the so-called one-touch mounting is performed. This makes it possible to improve workability, and is also useful as a mounting mechanism in automation. The same can be said for the attachment / detachment of the battery terminal 31.

The bolt supporting portion 81 of the bolt-side auxiliary rod 63 (see FIG. 1) and the bolt supporting portion 83 of the nut-side auxiliary rod 67 (see FIG. 1) have smooth bearing surfaces. Thus, in the process of pressing down the connecting shaft 61, the bolt support portions 81 and 83 are connected to the bolt head 49a and the substrate 3
3, or between the nut 55 and the tightening plate 41, the frictional force generated at that time is reduced so as not to cause a large pressing resistance.

In the above-described embodiment, the case where the bolt-side auxiliary rod 63, the bolt-side auxiliary connection rod 65, the nut-side auxiliary rod 67, and the nut-side auxiliary connection rod 69 are provided as an example. The battery terminal 31 by
These are omitted, and the bolt-side lever rod 51, the bolt-side connection rod 53, the nut-side lever rod 57, and the nut-side connection rod 5
9. Even if the link mechanism is constituted only by the connecting shaft 61, the bolt 49 and the nut 55 can be tightened by pressing down in the electrode axis direction.

[0020]

As described in detail above, according to the battery terminal of the present invention, the bolt-side lever rod is fixed to the bolt, and the nut-side lever rod is fixed to the nut. The bolt-side connecting rod and the nut-side connecting rod are connected to the end of the connecting rod, and the ends of these connecting rods are connected to each other by the connecting shaft. It can be fastened and can be easily attached to the electrode even in a narrow space. As a result, the terminal tightening workability can be improved. According to the battery terminal provided with the bolt-side auxiliary rod, the bolt-side auxiliary connecting rod, the nut-side auxiliary rod, and the nut-side auxiliary connecting rod, a highly rigid link mechanism can be formed, and the pressing force of the connecting shaft can be reduced by the bolt. Can be converted stably to the tightening force.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a battery terminal according to the present invention.

FIG. 2 is a perspective view showing a state where the battery terminal shown in FIG. 1 is mounted on the battery.

FIG. 3 is an explanatory view showing a state before fastening of the battery terminal of FIG. 1 in a side view (A) and a plan view (B).

FIG. 4 is an explanatory view showing a state after fastening of the battery terminal of FIG. 1 in a side view (A) and a plan view (B).

FIG. 5 is a perspective view showing a state of mounting a conventional battery terminal.

[Explanation of symbols]

 Reference Signs List 31 battery terminal 33 substrate part 39 electrode gripping part 40 tightening gap 41 tightening plate part 49 bolt 51 bolt side lever rod 53 bolt side connecting rod 55 nut 57 nut side lever rod 59 nut side connecting rod 61 connecting shaft 63 bolt side Auxiliary rod 65 Bolt-side auxiliary connecting rod 67 Nut-side auxiliary rod 69 Nut-side auxiliary connecting rod

Claims (2)

[Claims] 1. A substantially cylindrical electrode grip portion opened by a tightening gap that divides a part of the circumference, a substrate portion and a tightening plate extending at both ends of the electrode grip portion sandwiching the tightening gap. Terminal, a bolt penetrating through the base plate portion and the tightening plate portion, and a nut screwed to the bolt, a bolt side having one end fixed to the bolt in a direction orthogonal to the bolt axis. A lever rod, a bolt-side connecting rod having one end rotatably connected to the other end of the bolt-side lever rod with an axis in the same direction as the bolt axis, and one end fixed to the nut in a direction perpendicular to the bolt axis. Nut-side lever rod, a nut-side connection rod having one end rotatably connected to the other end of the nut-side lever rod with an axis in the same direction as the bolt shaft, the nut-side connection rod, and the bolt-side connection rod And a connecting shaft that rotatably connects the other ends of Battery for the terminal, characterized in that Bei was. 2. A bolt-side auxiliary rod having one end rotatably connected to the bolt, and a bolt side having one end rotatably connected to the other end of the bolt-side auxiliary rod with an axis in the same direction as the bolt shaft. An auxiliary connecting rod, a nut-side auxiliary rod having one end rotatably connected to the bolt, and a nut side having one end rotatably connected to the other end of the nut-side auxiliary rod with an axis in the same direction as the bolt shaft. The battery terminal according to claim 1, further comprising an auxiliary connecting rod, wherein the other ends of the nut-side auxiliary connecting rod and the bolt-side auxiliary connecting rod are rotatably connected to the connecting shaft.