JPS604434A - Sectioned insulating device of insulative trolley - Google Patents

Abstract

PURPOSE:To improve safety by preventing an insulating cover from damaging through a spark, by a method wherein an end part of a trolley wire is made to expose from the insulating cover, the exposed edges are made to oppose with each other and the exposed part is covered with a jointer cover at a gap. CONSTITUTION:An intermediate trolley wire 1' is arranged within a range of an insulating section A, and both edges of the intermediate trolley wire 1' and edges of respective trolley wires 1, 1 are made to oppose at a gap G1 with each other. Opposed end part sides among the respective trolley wires 1, 1 and the intermediate trolley wire 1' are made to expose from insulating covers 2, 2' respectively and a jointer cover 8 covering exposed parts of the trolley wire 1, 1' at a gap G2 is built between both the insulating covers 2, 2'. The cover 8 is formed also so that both the right and left sides of the trolley wires 1, 1' are covered at the gap and the lower edge of the cover 8 is made to connect with outward lips of the insulating covers 2, 2'. Then an inner circumferential protrusion is made to connect with juts of the insulating covers 2, 2'.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a sectional insulating device for an insulating trolley in which a contact wire is covered with an insulating cover.

Generally, insulated trolleys are installed on the ceiling of factories, etc. for moving electrical equipment (
For example, they are installed together with the rails of hoists, etc., and are used to supply power to electrical equipment. In the middle of such an insulating trolley, a sectional insulating device is arranged in order to separate power supply sections or to detect and control the position of electrical equipment.

(Prior Art) In a conventional sectional insulating device, for example, as shown in FIG. 1, contact wires 1, 1 are separated at a section A. On the other hand, the insulating cover 2 is installed in the insulating section A in consideration of safety aspects such as preventing electric shock.
It is also connected as one. Further, when the insulation section A is long, an insulation piece 3 made of resin (for example, made of slippery) is inserted between the insulation parts of the contact wire 1.1. However, since the insulating cover 2 is in close contact with both cross sections and the top surface of the contact wire 10 as shown in FIG. 2, the following problems occur.

That is, when a current collector installed in a hoist or the like passes the boundary between the contact wire 1 and the insulating piece 3, a small spark is generated, but this spark burns the insulating cover 2, shortening its lifespan. Become.

(Objective of the Invention) An object of the present invention is to prevent damage to the insulating cover etc. due to the spark and to protect one insulating part from the outside in order to ensure safety. It is still one of the objectives of the invention to improve the insulation performance.

(Structure of the Invention) In order to achieve the above object, the present invention: (a) exposes the end of the contact wire from the insulating cover;
(b) covering the exposed portion of the contact wire with a jointer cover with a gap in the direction perpendicular to the length of the contact wire; e\) and the resupply edge cover is reinforced and connected with reinforcing metal fittings.

(Example) 3rd. FIG. 4 shows that the intermediate contact wire 1' is arranged within the insulation section A, and both ends of the intermediate contact wire 1' and each of the contact wires 1, 1
and the gap Gl in the length direction of the contact wire, respectively.
This is an example in which they face each other across Gl. The contact wire 1 is made of a metal conductor such as copper, and its cross-sectional shape has symmetrical convex portions 5 and concave portions 6 as shown in FIG. It is formed in an open arc shape. The insulating cover 2 is made of synthetic resin such as epoxy resin, and has a substantially U-shaped cross section that opens downward.
The inner circumferential shape matches the outer circumferential shape of the contact wire 1, and the contact wire 1 is held movable in the length direction and prevented from falling off by engaging with the convex portion 5 and the like. The structures of the intermediate contact wire 1' and the intermediate insulating cover 2' shown in FIGS. 3 and 4 also have the structure shown in FIG.

However, the upper layer of intermediate contact wire 1'(1' in FIG.
Two places on both sides of part a) are caulked, so that the contact wire 1' cannot be moved in the length direction with respect to the intermediate insulating cover 2'.

The structure near the gap G1 on the rear side in Figure 4 and the structure near the gap G1 on the front side in Figure 4 are similar except that the front and back are reversed, so the structure near the gap G1 on the rear side Only this will be explained next. In FIG. 3, the front end of the rear contact wire 1 and the rear end of the intermediate contact wire 1' are exposed (projected) from the insulating covers 2, 2', respectively, and the contact wires 1, 1'
The insulating covers 2 and 2' face each other across the gap G1, and the insulating covers 2 and 2' face each other with a distance D] between them. A jointer cover 8 is installed over the refeed edge cover 2.2'-1'15 to cover the exposed portions of the contact wires 1, 1' with a gap G2 in between. In addition, the contact wires 1, 1 in the gap 01 part
The end edges of ' are formed in a bias shape parallel to each other as shown in FIG.

In Fig. 6, the jointer cover 8 is connected to the contact wire 1.1.
It covers the upper side of the contact wire 1.1'' with the gap G2 in between, and covers both left and right sides of the contact wire 1.1'' with a gap G8 in between. As shown in FIG. 5, the lower end of the jointer cover 8 fits into the outward facing lip 2a of the insulating cover 2, etc.
b, and by the locking action of the lip portion 2a and the overhang portion 2b, the jointer cover 8 is locked to the insulating covers 2, -2' so as not to be movable in the vertical direction. Further, a spacer portion 10 is formed on the inner circumferential surface of the lower half of the jointer cover 8, as shown in FIG. 10
has a longitudinal width of the distance D+ in FIG. 3, and both insulating covers 2.
It plays the role of a spacer between 2'.

That is, the distance between the front and rear insulation covers 2, 2' is set not to become smaller than Dl. Note that the jointer copper 8 is the 6th
As shown in the figure, it consists of a pair of left and right members, and both members are detachably connected by a connecting portion 12 at the upper end.

The connecting part 12 includes a hook part 13 and a stopper part 14 with a hole, and the hook part 13 is inserted into the stopper part 14 while bending downward, so that both parts 13 and 14 are engaged.

Note that 2'a and 2'b in FIG. 6 are a lip portion and a projecting portion, respectively.

Front and rear insulation covers 2.2 and intermediate insulation cover 2 in Figure 3
are reinforced and connected by reinforcing metal fittings 16 via hangers 15, respectively. Each hanger 15 has an insulating cover 2.2
．． 2' is locked so that it cannot move in the vertical direction, but is held so that it can slide in the front and back direction. Front and rear insulation covers 2
, 2 are each provided with two hangers 15, and the intermediate insulating cover 2' is provided with one hanger 15. Fixed clamps 17, 17 for position regulation are fixed to the front and rear insulating covers 2.2, respectively, on the rear side of the hanger 15 located at the frontmost side and on the front side of the hanger 15 located at the rearmost side. That is, due to the contact between each clamp 17° 17 and the hanger 15.15 adjacent to them, the front insulating cover 2 is restricted from moving forward, and the rear insulating cover 2 is restricted from moving backward. ing. Each of the hangers 15 is fixed to the upper wall of the connecting fitting 16 with bolts 18 or the like.

As shown in FIG. 7, the hanger 15 includes a generally H-shaped resin member 20 and a U-shaped metal member 21 that opens downward, and both members 20 and 21 are connected to the hook portion 2 of the resin member 20.
They are integrally connected to each other using meshes such as 0a. A pair of inward protrusions 23 are located at the lower end of the resin member 20.
is formed, and the insulating cover 2 is held slidably in the front-rear direction (the length direction of the trolley wire) through this inward protrusion 231.

FIG. 8 shows a cross-sectional view of the fixed clamp 17. In this FIG.
are connected by. A pair of inward protrusions 28 are formed at the lower end of the fixed clamp 17.
1. The insulation cover 2 is sandwiched.

Note that the embodiment shown in FIG. 3 is an example of application when the insulation section A is long, but when the insulation section A is short, the intermediate contact wire 1'
and the intermediate insulating cover 2' is omitted, and the front and rear contact wires 1
, 1 in the longitudinal direction of the contact wire, and only one jointer cover 8 is provided.

(Function) In the device shown in FIG. 3, the front contact wire 1 and the rear contact wire 1 are connected to separate power supplies, and the intermediate contact wire 1' is connected to each contact wire 1.1 by a gap G1. insulated from A current collector such as a hoist moves forward, for example, while contacting the lower surface of the contact wire 1. Even if sparks occur in the air gap 01, the joint cover 8 and insulation cover 2
．． 2' is rarely burnt. Furthermore, if the intermediate contact wire 1' is used when the insulation section A is long, the degree of wear is almost the same as that of the front and rear contact wires 1 and is small, so the service life of the sectional insulator is extended, and the current collector in the gap 01 is The sliding movement becomes smoother.

(Effects of the Invention) As explained above, according to the present invention: (a) Since the sectioned insulation method using the air gap 1iG1 is adopted, the insulation performance is good, and current collection wear powder adheres to the extent that the air gap G+ is filled. There's nothing to do.

Trunk) The end of the contact wire 1 in the vicinity of the gap G1 is exposed from the insulating cover 2, and the exposed portion of the contact wire 1 is connected to the gap G in the direction perpendicular to the length direction of the contact wire using the jointer cover 8.
Since s+ and Ga are separated and covered, not only can electrical shocks and the like be prevented from a safety standpoint, but even if a spark occurs in the gap 01, the insulation cover 2 and the jointer cover 8 will not be burnt, and the insulation cover 2 and the jointer cover 8 will not be burnt. Longer equipment life.

(!8 Since the insulating covers 2 are connected to each other by the reinforcing metal fittings 16, the strength is improved.

[Brief explanation of the drawing]

FIG. 1 is a side view of the conventional example, FIG. 2 is a sectional view taken along the line ■-■ in FIG. Figures 5 and 6 are enlarged cross-sectional views along v-v and Vl-VI in Figure 3, and Figure 7. FIG. 8 is a diagram of ■-■ and ■-■ of FIG. 3. 1...Trolley wire, 2...Insulating cover, 8...Joiner cover, 16...Reinforcing metal fittings Patent applicant Daiei Nippon Electric Cable Co., Ltd. Agent” 18 Tadashi Mori 41j Mulberry: Ash, 1 sword Procedural amendment (@O) 1. Indication of the case Showakichi 8, Chair Permit No. //16 Left 0 No. 2, Katsuaki
The name of the name of Red Toroso classification summary table 1 3. Relationship with the case of the person making the amendments Applicant Igi Rokuten Zohyakuyu No. 3-11 4λ direction Made ξ αh
→: Pressure - 81h Taseni S Bo, (Jyu 6) Dainichi Nippon Electric Cable Co., Ltd. I 1 Ko Ura no t 1 Iten Omotesho 1 Sui role - Iia, "ri No. 11゜4, Agent 5. Date of amendment order (shipment date) Showa year, month, day 6,
Target of amendment: Drawing 7, content of amendment: Drawing 6, Figure 8. Attachment 8 (Crow 16th, 88th day) 1 letter, Hl.
4 h Figure 6, Figure 8, Figure 7

Claims (1)

[Claims] In a sectional insulating device for an insulated trolley in which a contact wire is covered with an insulating cover, the end of the contact wire is exposed from the insulating cover, the exposed edges of the contact wire are opposed to each other with a gap in the length direction of the contact wire, and the contact wire is A sectional insulating device for an insulating trolley, characterized in that the exposed portion of the wire is covered by a jointer cover with a gap in a direction perpendicular to the length direction of the contact wire, and both insulating covers are reinforced and connected by a reinforcing metal fitting.