JP4433367B2 - Branch adapter for bushing terminals - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a circuit branching adapter attached to a bushing terminal.
[0002]
[Prior art]
The shape of the conventional bushing terminal is changed depending on the number of connected circuits. For example, as shown in FIG. 3, only one circuit is connected to the terminal 2 fixed to the bushing 1 attached to the outer box 6. In this case, a fixing hole 4 for attaching one connection terminal 3 is provided in the terminal 2, and the connection terminal 3 is fixed to the terminal 2 with a bolt 5. In the case of branching to three circuits, as shown in FIG. 4, fixing holes 4 are provided in the terminals 2 a fixed to the bushing 1 so that three connection terminals 3 can be mounted on the same plane, and bolts 5 are used. The connection terminal 3 was fixed to the terminal 2a.
Further, in a device that requires a plurality of circuits, when it is necessary to make the entire device compact, for example, as shown in FIG. 5, the terminal 2 can be sandwiched and fixed by two connection terminals 3. A fixed hole 4 is provided in the terminal 2, and the two connection terminals 3 are fixed to the terminal 2 with bolts 5.
[0003]
[Problems to be solved by the invention]
In the conventional bushing terminal, when the number of branches is changed from one circuit to three circuits, the necessary space between the bushing terminals cannot be secured and the arrangement of the bushing terminals must be changed. It was necessary to review. Even if the necessary space could be secured, it took a lot of time because it was necessary to remove the attached bushing terminals and install the bushing terminals with the required number of branches.
In addition, if a bushing terminal that can be branched into three circuits is attached from the beginning, there is a problem that even if only one circuit is used, a space for three circuits is required, resulting in an increase in the size of the device itself. .
For the bushing terminal that is sandwiched between two connection terminals and fixed with bolts, both connection terminals are fixed with the same bolt, so even if you want to remove only one connection terminal, both Since it was necessary to remove the connection terminal, there was a risk of hindering electricity supply.
Accordingly, an object of the present invention is to provide a bushing terminal branch adapter that can be easily attached and detached without reexamining the structure of the entire device even when the number of branches is changed from one to three.
[0004]
[Means for Solving the Problems]
In order to solve these problems, the present invention has a structure in which two circuits can be branched downward so that the mating surface with the connection terminal is perpendicular to the bushing terminal, and one circuit can be branched upward so as to be parallel to the bushing terminal. The connection terminals for each of the three circuits are individually attached and removable.
In this way, a device that requires three circuits can have the same dimensions as a single-circuit device, and each connection terminal can be attached and detached separately.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS.
In FIG. 1, the terminal 2 of the bushing 1 attached to the outer box 6 is provided with a hole for attaching a branch adapter 7 that can be branched into three circuits, and the hole provided in the terminal 2 has three circuits. A branching adapter 7 capable of branching is attached with a bolt 5a.
In FIG. 1 and FIG. 2, the structure of the branch adapter 7 is provided with a fixing screw hole 8 c so that it can be fixed to the terminal 2 of the bushing 1 on one of the surfaces perpendicular to the mounting surfaces of the connection terminals 3 a and 3 b. Keep it. The mating surfaces of the connection terminals 3a, 3b and the terminal 2 are structured so as to face each other, the mating surfaces are perpendicular to the mating surfaces of the terminals, and the fixing screw holes 8a so that the connection terminals 3a, 3b can be fixed separately. , 8b are arranged so that two circuits can be wired in the lower part. The dimension E between the connection terminal 2a and the connection terminal 2b is the minimum dimension that can be fixed with the bolt 5b, and the fixing screw holes 8a, 8b, and 8c are branched by attaching the branch adapter 7 to the terminal 2 with the bolt 5a. When the connection terminals 3a and 3b are fixed to the adapter 7 with the bolts 5b, the bolts 5a and 5b are shifted vertically so as not to interfere with each other (for example, A dimension> B dimension, A dimension <C dimension D The dimensions are the same for each surface.) And the fixing screw holes 8a and 8b are arranged so as not to protrude to the other connection terminal mounting surface.
In addition, a fixing hole 4 is arranged above the connection terminal 3a, 3b fixing portion of the branch adapter 7 so that the mating surface with the connection terminal 3c is parallel to the mating surface of the terminal 2, and the connection terminal 3c is connected to the bolt 5C. So that one circuit can be wired to the top.
[Brief description of the drawings]
FIG. 1 is a mounting diagram of a branching adapter for a bushing terminal according to an embodiment of the present invention.
FIG. 2 is a structural diagram of a branching adapter for a bushing terminal according to an embodiment of the present invention.
FIG. 3 is a structural diagram of a bushing terminal showing a conventional embodiment.
FIG. 4 is a structural diagram of a bushing terminal showing a conventional embodiment.
FIG. 5 is a structural diagram of a bushing terminal showing a conventional example.
[Explanation of symbols]
1 Bushing 2, 2a Terminal 3, 3a, 3b, 3c Connection terminal 4 Fixing hole 5, 5a, 5b, 5c Bolt 6 Outer box 7 Branch adapter 8a, 8b, 8c Fixing screw hole

Claims (1)

In a three-circuit branching adapter consisting of two rectangular parallelepiped joints so that the rectangle on the short side attached to the bushing terminals arranged in parallel is a cross, a bolt for fixing the bushing terminal is attached to one surface of one rectangular parallelepiped . Fixing screw holes ,
A fixing screw hole for fixing the first or second branch circuit is provided on each of two surfaces sandwiching the one surface provided with the fixing screw hole,
A fixing hole for fixing the third branch circuit is provided on two parallel surfaces of the other rectangular parallelepiped in the same direction as the one surface provided with the fixing screw hole,
When the fixing hole for fixing the third branch circuit passes through the two parallel surfaces, the three branch circuits including the first to third are parallel to each other by one component,
A three-circuit branch adapter for a bushing terminal, which can be connected to the bushing terminals arranged in parallel by a plurality of branch circuits.

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