JPS5839236Y2 - Sliding feeder connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connecting device for a sliding power supply line, and more particularly to a connecting device for a sliding power supply line that can prevent an increase in contact resistance due to insufficient tightening force of a connecting fastening bolt.

2. Description of the Related Art Conventionally, devices as shown in FIGS. 1 to 3 have been used as connecting devices for sliding power supply lines having a cross section with an opening.

A plurality of consecutive sliding feeder wires are connected near both ends in the longitudinal direction, and fastening fittings 2 are installed inside the openings IA, and electric connection fittings 3 are contacted on the outside with sloped contact surfaces 3A. It is arranged so that

A connecting wire 4 is in contact with the back of the electric fitting 3, and the fastening fitting 2, the electric fitting 3, and the connecting wire 4 are integrally fastened by screws 5.

The current collecting shoe 6 moves while maintaining an appropriate contact surface with the current collecting surface IB of the sliding power supply line I.

Although the above-mentioned configuration enables a continuous power supply device, since the contact surface 3A of the sliding power supply line 1 and the electric connection fitting 3 has an inclination with respect to the axis of the spring screw 5, accurate face-to-face matching is not easy.

Further, since the tightening force of the screw 5 generates force components F and P that spread out the sloped portion of the electric fitting 3, there is a limit to the tightening torque of the screw 5, and a sufficient tightening force cannot be exerted.

Therefore, if a connection device with such a structure is pressed, the sliding power supply line 1 and the electric connection fitting 3 will be in an incomplete contact state, and the screw 5 will also easily loosen due to external vibrations during use, further worsening the contact state. There is a drawback that the sliding power supply line I and the connecting wire 4 are likely to be heated and fused due to an increase in contact resistance.

Another drawback is that the screws 5 tend to fall off due to incomplete tightening.

The present invention was made to solve the above-mentioned conventional drawbacks, and the tightening force of the screw acts as a contact surface pressure of the directly connected wire, thereby improving the contact state between the sliding power feeder and the connecting wire. The object of the present invention is to provide a sliding power supply line connection device that takes into consideration the following.

The present invention provides a connecting device for a sliding power supply line, in which a hook provided facing both leg ends of a U-shaped cross section of the supply line is brought into contact with a fastening fitting incorporated inside the power supply line. The connecting wire is sandwiched between the wire and the connecting wire, and the screw is inserted through the connecting wire and screwed into the fastening fitting.

Embodiments of the present invention will be described below with reference to FIGS. 4, 5, and 6.

The sliding power supply line] 0 has a cross-sectional shape with a pair of hooks [2] facing each other with a gap 13 at both leg ends of a U-shaped cross section, and the outside of the side opposite to the gap is used as a current collecting surface]1. The electric shoes 20 are made to slide.

The sliding power supply line]0 formed in this way is inserted into the gap ■3
are adjacent to each other so that they are oriented in the same direction, and a connecting wire 30 is connected across these adjacent sliding power feed lines.

Sliding power supply line to which this connection wire 30 is connected]
A fastening fitting 40 is installed inside the wire 0, and the connecting wire 30 and the sliding feeder wire 1 are connected by screws 50 using the gap 13.
0.

That is, the screw 50 passes through the mounting hole 31 provided in the connecting wire 30 and the gap [3], and the screw 50 is inserted into the screw hole 4 of the internal fastening fitting 40.
The hook 12 of the sliding power supply line 10 is clamped by the connecting wire 30 and the fastening fitting 40.

With the above structure, according to this embodiment, the connecting wire 30 can directly contact the sliding power feeder 10 without any intervention, and the contact surface between the two can be Since the tightening force by the screw 50 acts perpendicularly as the contact surface pressure F, P of the screw 50, sufficient contact pressure can be obtained, and heating of the connected wire due to poor contact as in the conventional case can be prevented.
Problems such as melting will be eliminated.

Further, the sliding power supply line 10 does not need to have a special structure to connect the connecting wire 30, and no processing is required for connection.

In addition, the connection work of the connecting wire 30 is simple because it is only necessary to screw the screw 50 into the continuous feed fitting 40 in the sliding power feeder 10, and sufficient tightening can be performed.

Incidentally, the connecting wire 30 is generally made of a flexible wire such as a braided wire, and the tightening portion is connected to a terminal plate for convenience of providing a mounting hole 31.

For the above embodiment, the hook I2 is formed by bending, and
Processing methods such as drawing and extrusion are arbitrary.

Furthermore, when the electric fitting 60 is attached between the power supply line IO and the connecting wire 30 as shown in FIG. and can maintain good contact.

As explained above, the present invention improves the cross-sectional shape of the sliding feeder line by
It has a U-shaped cross section with a pair of hooks facing each other with a gap in between, and a connecting metal fitting is placed inside the sliding power supply line, and a connecting wire is passed through this connecting metal fitting. Since the screw is screwed through the gap and the hook is clamped, a simple structure can eliminate melting accidents of the sliding power supply line and the connecting wire and loosening of the screw due to an increase in contact resistance.

In addition, the connecting wires can all be attached and detached from the same force direction, which makes the work easier, and the interior of the fastener can protect the connecting portion of the feeder line from deformation due to external force.

In addition, the sliding power supply line does not need to have a special structure for connection, and has the advantage that no processing is required for connection.

[Brief explanation of the drawing]

Figure 1 is a plan view of a conventional sliding power feed line connection device, Figure 2 is a front view of Figure τ, Figure 3 is a sectional view taken along the line ■-■ in Figure 2, and Figure 4 is the main A plan view of the sliding power supply line connection device according to the invention, Fig. 5 is a front view of Fig. 4, and Fig. 6 is the same as Fig. 5 -
7 is a sectional view showing a modification of the present invention. 10... Sliding power supply line, 12... Hook of sliding power supply line, 3
0... Connection electric wire, 40... Fastening metal fittings.

Claims (1)

[Scope of utility model registration request] The current collecting shoe slides into contact and presses a button on a sliding power feed line connecting device that connects longitudinally adjacent power lines using a connecting wire,
The cross-sectional shape over the entire length of the sliding power supply line is a U-shaped cross section with a pair of hooks facing each other with a gap at both ends of the legs, and the sliding power lines are adjacent to each other so that the gaps are in the same direction. A fastening fitting is located inside, and the connecting wire is screwed to the fastening fitting from the outside using the gap to crimp the pair of hooks, and the gap of the sliding power supply line is A connecting device for a sliding power supply line, characterized in that the opposite IF facing outer surface is a current collecting surface on which the current collecting shoe slides.