JPS6240001A - Current collector for insulated trolley - Google Patents

Abstract

PURPOSE:To keep the balancing of a brush holder to an insulated trolley at all times by mounting a stopper regulating the angle of rotation of a swing arm and the angle of rotation of the brush holder within predetermined ranges. CONSTITUTION:A collector base section 3 is fixed to a horizontal support bar 1 for a movable truck D. A first vertical shaft 9 rectangular to an insulated trolley 62 is fitted rotatably to the base section 3, and a swing arm 18 is fastened to the first vertical shaft 9. A second vertical shaft 32 parallel with the first vertical shaft is engaged rotatably with the nose of the swing arm 18, and a brush holder 36 to which a brush 57 is fixed is fitted and fastened to the second vertical shaft 32. The swing arm 18 is energized to the insulated trolley side by a spring mechanism 22. The quantity of the swing arm 18 turned is regulated by a stopper 25 and the quantity of the brush holder 36 rotated by a stopper 41.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a current collector for collecting current from an insulated trolley for a movable cart or the like.

<Prior art and its problems> Conventionally, this type of current collector device has been used in the left and right direction (
In order to cope with vibrations of the insulating trolley (perpendicular to the insulating trolley) and changes in parallelism to the insulating trolley, the swing arm 18 is attached to the insulating trolley 1.
The brush holder 36 is configured to be rotatable around vi'11, and the brush holder 36 is mounted at the tip of the swing arm 18 at the second
It is supported rotatably around a vertical axis (bush 32).

However, unless the range of rotation of the swing arm 18 and the brush holder 36 is specifically limited, for example, when climbing over a divided part of the insulation board 1 stiffness 62 as shown in FIG.
There is a possibility that the brush holder 36 may come out of the receiving width W of the transfer guide 65 shown in FIG. 7 due to wind or other external effects.

Further, there is a risk that the brush holder 36 or the insulating trolley may be damaged. Incidentally, examples of locations where a contact wire is divided as shown in FIG. 6 include a rotational connection portion provided in a bridge or the like to absorb deflection due to thermal expansion and contraction and the load of an automobile or the like.

<Means for Solving the Problems> In order to solve the above problems, the present invention fixes a base to a moving device, rotatably supports a first vertical shaft substantially perpendicular to the insulated trolley on the base, and A base end portion of the swing arm is rotatably supported on a vertical axis via a horizontal axis perpendicular to the vertical axis, and
The swing arm is insulated (biased toward the stiff side) by a spring mechanism, and an insulated trolley rotatably supports the brush holder at the tip of the swing arm via a second vertical axis that is approximately parallel to the 11th!i axis. In the current collector, a first stopper is provided at the base to regulate the rotation angle of the swing arm around the first vertical axis within a certain range (), and a second stopper is provided at the tip of the swing arm to regulate the rotation angle around the first vertical axis of the swing arm. There is a second stopper that regulates the rotation angle within a certain range.

(Example) Part 1 shows a vertical side view of a current collector to which the present invention is applied.
In the figure, the current collector base 3 is fixed to the horizontal support rod 1 of the mobile trolley by U-bolts 5, and the base 3 is integrally provided with a pair of brackets 7.8 below the brackets 7.8.
A first vertical shaft 9 is rotatably fitted into the shaft 8 . Two radial pressure pins 10 and 11 are inserted and fixed in the lower part of the first vertical shaft 9 at the top and bottom of the lower bracket 8, and the first vertical shaft 9 is prevented from being pulled out by both pins 10 and 11. There is. A beam/-wire support member 13 is rotatably fitted into the protruding portions at both ends of the pressure pin 11 located below the lower bracket 8.
The lead wire 12 is fastened by.

A horizontal shaft (pressure pin) 17 perpendicular to the first vertical shaft 9 and the pins 10 and 11 is rotatably fitted into the center of the first vertical shaft 9 in the vertical direction. The base end portions of a swing arm 18 having a cross-sectional shape of the letter “lower” are fitted and fixed to both ends of the . It is supported by a shaft 9.

':r The J3 horizontal shaft 17 is installed at position t, on the tip side of the arm 18 with respect to the center line 01 of the first vertical shaft 9 (inward toward the arrow)
biased toward

A pressure pin 19 that passes through the first WX-axis center line 01 and is parallel to the horizontal axis 17 is fitted and fixed to a portion of the first vertical axis 9 above the horizontal axis 17, and hook links 2 are attached to both ends of the pressure pin 19.
The boss portion 20a of No. 0 is rotatably fitted. The hook link 20 has a hook portion 23 of the central shaft 23 of the spring mechanism 22.
a is engaged, and the center shaft 23 is connected to the long hole 1 of the swing arm 18.
8a and extends below the tip of the swing arm 18. The fly screw 24 is screwed onto the tip of the central shaft 23, and the coil spring 29 is
One end of the spring 29 is pressed against the spring screw 24 via the washer 28, and the other end of the spring 29 is connected to the two wooden pressure pins 2 of the swing arm 18.
6 through a washer 27. The pin 26 is fixed to the center of the swing arm 18 in the V-line with the horizontal axis 17, and the center shaft 23 is inserted between the pins 26 and is slidably held between the pins 26. That is, twist the spring 29
4 and the pressure pin 26 of the swing arm 18, the tip of the swing arm 18 is urged toward the insulating trolley 62 (upper side).

A first stopper 25 is provided on the upper bracket 7 of the base 3 to restrict the amount of rotation of the swing arm 18 about the eleventh axis 9. The first stopper 25 is formed in the shape of a bottom opening when viewed in the six directions of arrows, and straddles the upper bracket 7 from above, and the upper wall hole 25G is the first stopper.
It fits into the upper protrusion 9a of the vertical shaft 9. Pin holes 25 b h< are provided on both sides 25 a of the stopper 25 , and by inserting (or press-fitting) both ends of the pin 19 into the pin holes 25 b , the first vertical shaft 9 and the first stopper 25 are connected. It is integrally connected to rotate around the center line 01.

As shown in FIG. When rotated, the edge of either side portion 25a on the support rod 1 side is aligned with the edge 7 of the upper bracket 7.
By coming into contact with a, the rotational movement ω of the swing arm 18 about the first vertical axis is restricted within a certain range. The certain range is, for example, within the width W of the tip of the l-transfer guide 65 shown in FIG.

A bearing member 30 having a U-shaped side surface is fixed to the tip of the swing arm 18 shown in FIG. The bearing member 30 has a bent portion 30a at one end that is connected to the swing arm 18.
The arm 18 is inserted into and engaged with the hole on the upper surface of the arm 18.
is engaged with the tip pressure bottle 31 of. A substantially vertically concentric hole is formed in the upper surface of the tip of the arm 18 and the lower surface of the bearing member 30, and a bush (second vertical shaft) 32 is rotatably fitted into the hole. A square-shaped clamp member 33 is mounted on the upper end of the bush 32, and the clamp member 33 is integrated with the bush 32 by a bolt 34 with an upper end flange and a nut 35.

That is, the clamp member 33 is supported at the tip of the arm so as to be rotatable around the bush (21st axis).

The clamp member 33 has U-shaped bearing recesses 37 on both sides, and the shaft portion 36a of the brush holder 36 is rotatably fitted into the bearing recesses 37. One side of the clamp member 33 (
A retaining portion vi39 having a boss portion at the upper end is welded to the portion (m1 side in Figure 1), and a retaining bolt 52 is attached to the upper boss portion of the retaining member 39.

A second stopper 41 for regulating the amount of rotation of the clamp member 33 is a band 42 made of metal cloth, as shown in FIG.
The band 42 has a large number of engagement grooves (holes) 42a spaced apart from each other, and one end is connected to the bottom wall 4 of the bolt case 44.
The bolt 43 is welded to the bolt 4a and goes around the swig arm 18 once, and the male threaded portion of the bolt 43 is engaged with the engagement groove 42a. The bolt 43 is rotatably supported by the case 44. Therefore, for example, by turning the bolt 43 to the right, the band 42
Tighten it and loosen it by turning it to the left. As shown in FIG.
They are arranged at a certain gap d2 from a. That is, when the clamp member 33 rotates, the edge 33a comes into contact with the band 42, so that the rotation it of the clamp member 33 and the brush holder 36 around the bush 32 is restricted within a certain range. The certain range is, for example, a range in which the tip of the brush holder 36 covers the neck by about ±10 m.

The brush holder 36 is an insulating member made of injection molded Noryl resin, polycarbonate, etc., and has a pair of vertical guide walls 53 on both sides as shown in FIG.
A copper brush 57 is fixed in parallel to the guide wall 53 in the center between them. As shown in FIG. 2, the brush 57 is press-fitted into the center groove 56 and both end grooves 58 of the holder 36, and one end of the lead wire 12 is fixed to the brush 57 with a bolt 61 as shown in FIG. There is. The brush 57 comes into contact with the contact wire 64 of the insulated trolley 62.

As shown in FIG. 6, a pair of current collectors as described above are provided, for example, one pair at the front and the rear for one movable trolley.

Note that the insulating trolley 62 has a U-shaped bottom m1 as shown in FIG. l! It consists of an insulating cover 63 made of wood Wt and a copper trolley l1i64 housed in the insulating cover 63 once.

(Function) As the brush holder 36 is urged upward by the action of the spring mechanism 22, the brush 57 comes into contact with the contact wire 64 of the upper insulated trolley 62 as shown in FIG.
Powered from 7+. The swing of the movable trolley in the horizontal direction perpendicular to the contact wire 64 is caused by the rotation of the arm 18 around the 1st inch Ii axis 9 and the rotation of the brush holder 36 around the bush 32, which causes the brush 57 to move relative to the insulating trolley 62. This is absorbed by adjusting the parallelism, so that the brush 57 always makes good contact with the contact wire 64.

As shown in FIG. 6, when transferring from one transfer guide 65 to the other transfer guide 65 in the direction of the arrow, for example, at the divided part of the insulating sheet 62, even if there is a wind or an external action, The rotation of the arm 18 around the first vertical axis 9 and the amount of rotation of the brush holder 36 around the bush 32 are regulated within a certain range by the first and second stop bars 25 and 41, respectively. , as shown in FIG. 7, from the tip width W of the transfer guide 65 to the brush holder 3
6 will never come off. Therefore, the user can smoothly transfer from one transfer guide 65 to the other transfer guide 65 at any time.

(Effects of the Invention) As explained above, the present invention fixes the base 3 to a mobile device, rotatably supports the first vertical shaft 9 substantially perpendicular to the insulating trolley 62 on the base 3, and the 11ii shaft 9 The side perpendicular to this @1
When the base end of the swing arm 18 is rotatably supported via the spring mechanism 22, the swing arm 18 is connected to the spring mechanism 22.
The tip of the swing arm 18 is biased toward the insulated trolley by the swing arm 18.
32), in which the brush holder 36 is rotatably supported by the insulating trolley current collector, the base 3 has a first shaft that regulates the rotation angle of the swing arm 18 about the first vertical axis 9 within a certain range. Install stopper 25 and swing arm 18
Since a second stopper 41 is provided at the tip of the brush holder 36 for regulating the rotation angle of the brush holder 36 around the second vertical axis within a certain range, there are the following advantages.

(1) Rotation b1 around the first vertical axis 9 by the first stopper 25
By regulating the horizontal position of the brush holder 36 with respect to the insulation 1-1 stiffness 62, that is, the horizontal position perpendicular to the insulation trolley 62, is controlled within a certain range, and the second stopper 41 controls the second position of the brush holder 36 with respect to the insulation trolley 62. By restricting the rotation around the vertical axis, the parallelism of the brush holder 36 to the insulating trolley 62 is maintained, so when climbing over the divided part of the insulating trolley 62 as shown in FIG. Even if wind or other external factors act on the brush boulder 36, the brush holder 36 will not come off the transfer guide 65 and can always be transferred smoothly. This also prevents the brush 57 and the insulators 11 and 12 from being damaged or deformed. (2) Insulated trolley 62
Since the horizontal position and parallelism of the brush holder 36 relative to the brush holder 36 are regulated within a certain range by the first and second stoppers 25.41, it is easy to engage the brush 57 with the contact wire 64 when installing the movable trolley. be able to.

(3) Since the swing arm 18 is freely rotatable around the first vertical axis 9 and the brush holder 36 is freely rotatable around the second vertical axis at the tip of the arm, it is possible to prevent the movable cart from rolling, etc. This horizontal vibration can be absorbed and the brush can be kept in good contact with the contact wire at all times.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional side view of a part of the current collector to which the present invention is applied, Fig. 2 is a view (top view) in the direction of the ■ arrow in Fig. 1, and Fig. 3 is a part of the current collector in the direction of the - arrow in Fig. 1. Enlarged cross-sectional view, Figure 4 is the TV in Figure 1
-IV cross-sectional enlarged view, Figure 5 is an enlarged cross-sectional view of ■-■ in Figure 1, Figure 6 is an overall schematic side view of the current collector showing the state of use at the divided part of the insulator [1], and Figure 7 is an enlarged cross-sectional view of Figure 1. FIG. 6 is an enlarged view of the transfer guide used in the divided portion of the insulated trolley. 3... Current collector base, 9... First
Vertical axis, 17... Horizontal axis, 18... Swing arm, 1
7... Spring mechanism, 25... First stopper, 32...
...Brush (second vertical axis), 36-brush holder, 41
...Second stopper 0.57...Brush, 62...
・Insulated trolley, D... Mobile trolley (an example of mobile equipment) Patent applicant: Dainichi Nippon Electric Cable Co., Ltd. Representative Patent attorney: Tadataka Omori '1 ・;,;

Claims (1)

[Claims] The base of the current collector is fixed to a moving device, a first vertical shaft substantially perpendicular to the insulated trolley is rotatably supported at the base, and a swing arm is connected to the first vertical shaft via a horizontal shaft perpendicular to the vertical axis. The base end is rotatably supported, and the swing arm is biased toward the insulated trolley by a spring mechanism, and a brush holder is attached to the tip of the swing arm via a second vertical axis that is generally parallel to the first vertical axis. In the current collector of an insulated trolley that rotatably supports the swing arm, a first stopper is provided at the base of the swing arm to regulate the rotation angle around the first vertical axis within a certain range, and A current collector for an insulated trolley, characterized in that a second stopper is provided for regulating the rotation angle of the brush holder about the second vertical axis within a certain range.