JPH028502Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a flat cable suitable for suspending and supporting a flat cable that feeds power or sends control signals to a moving object such as a crane or hoist. Regarding type cable hangers.

[Prior art and its problems] Conventionally, round cables have been widely used as cables for cranes and hoists, but flat cables have come into use in recent years due to their ease of construction. The hanger for hanging this flat cable is suspended from the rail and is supported by hanging from the bottom of the trolley that moves along the rail via a hanging bolt, and the hanger is suspended between the bottom surface of the trolley and the lower surface of the trolley. The flat cable is sandwiched between the two.

[Problems to be solved by the invention] The suspension bolt is inserted into the lower part of the cart from above, a hanger is inserted into the lower part of the bolt, and a nut is screwed into the hanger to form an integral unit. For this reason, when screwing in a nut, when inserting a hanger into the lower end of the bolt from below, if the bolt is not inserted into the bolt insertion hole of the hanger accurately, the bolt may be pushed upward by the hanger. It is difficult to work with, and when screwing a nut onto a bolt, it is necessary to hold the bolt to prevent it from turning. This work is extremely difficult as it involves hanging a flat cable on a hanger, supporting the heavy load with one hand, and doing it at a high place, which hinders work efficiency.

The purpose of this invention is to prevent the bolt from being pushed upward and from turning around, thereby improving workability even at high places.

[Means for solving the problem] A bolt head that is inserted from the side into the arms that are supported by the rail and protrudes horizontally on both sides of the lower part of the running trolley in the longitudinal direction of the arm so that the bolt head does not turn. A U-shaped groove is formed in the lower piece of the lower part of the hole in the arm part to allow the threaded part of the bolt to protrude downward from the arm part, thereby exerting an upward pushing force on the bolt. The bolt is suspended from the arm part to prevent the nut from twisting when screwed in, the boss part of the hanger having a semicircular cross section is inserted into the bolt, and the wing nut is screwed onto the lower end of the bolt. Then, the flat cable is held between the arm of the trolley and the hanger.

[Function] The bolt head is inserted into the arm section of the lower part of the truck from the lateral direction, and the nut is prevented from turning around and being pushed upward when screwed in, thereby improving workability at high places.

[Example] Next, the flat cable hanger of the present invention will be described in detail based on an example shown in the drawings. FIG. 1 is a partially cutaway front view, and FIG. 2 is a side view thereof. Reference numeral 1 denotes a rail arranged in advance along the direction in which a mobile object such as a crane or hoist travels, and a cart 3 is moved by one or more rollers 2 which are fitted into the rail 1 so as to be able to roll freely. Run along rail 1. The rollers 2, 2 are provided protruding from a boss portion 11 provided on the upper part of the truck 3 and on both sides of the truck. Of course, this trolley 3 has enough strength to withstand hanging the cable and has an appropriate design.

Although it is desirable that the material of the trolley 3 is molded from synthetic resin, for example, materials other than resin can also be used. Arm portions 4, 4 projecting approximately horizontally are integrally formed on both sides of the lower portion of the truck 3, and each arm portion 4 is provided with a bolt head insertion hole 5. The bolt head insertion hole 5 is designed so that the bolt head is prevented from rotating in the longitudinal direction of the arm part, that is, when the bolt head is inserted into the hole 5, two opposing outer surfaces contact the inner surface of the hole 5. Drill an opening in the end face of the arm so as to prevent rotation, and make sure that the height of the hole is equal to the height of the bolt head.
The height inside the hole is set to be slightly higher than the height of the bolt head so that the head can be easily inserted into the hole. When the bolt head 6 is inserted into the hole 5, the top surface of the bolt head faces the inner top surface 51 of the hole 5, and the bolt is prevented from being pushed upward by the inner top surface. Eggplant. Further, the lower piece 52 of the bolt head insertion hole has a U-shaped cutout groove 53 formed on the end surface side of the arm portion thereof.
The bolt 7 is made to protrude below the arm from this groove 53. The width of this groove 53 is smaller than the width of the bolt head insertion hole 5, as is clear from FIG. 1, so that the bolt can be inserted into the hole 5 and supported. It is.

Reference numeral 8 denotes a hanger, which is made of a material such as synthetic resin and shaped like a gutter with a semi-circular cross section in the same way as the trolley 3, and ribs 81 and 82 are integrally provided at the center and both ends of the lower surface to reinforce the hanger body. and boss portions 83, 83 are provided at both ends, and the bolt 7 is attached to the boss portion.
Insert the bottom edge of. A nut or wing nut 9 is screwed onto the lower end of the bolt 7, and the hanger 8 is suspended from the trolley 3 via the two bolts 7, 7.

Reference numeral 10 denotes a flat cable, in which the necessary number of core wires are stored, and by tightening the wing nut 9, the hanger 8 is brought close to the lower surface of the arm of the trolley, and the cable is held between the hanger and the arm part. Ru. At this time, a knurl 12 may be carved in the center of the top surface of the hanger 8 in order to securely hold the cable 10 without slipping.

The flat cable 10 held between the hanger and the arm portion of the truck is suspended and supported along the outer peripheral surface of the hanger as shown by the chain line in FIG. A plurality of holes 13, 13, . This prevents the rollers of neighboring carts from coming into direct contact when the carts move along the same line.
Prevent noise from occurring. In addition, a cable is fixed to the inner hole to connect adjacent carts without applying tension to the cable, and the cable supports the tensile force when the cart moves, thereby protecting the cable. .

[Effects of the invention] According to the invention, the head of the bolt that is inserted into the arm of the truck and suspended is prevented from rotating and being pushed up, so a hanger is attached to the bottom of the bolt. This simplifies the work of inserting the bolt and screwing the wing nut onto the bolt, making it easier to hang the flat cable at high places.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of the flat cable hanger of the present invention, and FIG. 2 is a side view of the same. 1 is a rail, 2 is a roller, 3 is a trolley, 4 is an arm part, 5 is a bolt head insertion hole, 51 is an inner top surface, 5
2 is a U-shaped groove, 6 is a bolt head, 7 is a bolt, 8 is a hanger, 9 is a nut, and 10 is a flat table.

Claims (1)

[Scope of utility model registration request] A flat cable hanger that supports a hanger via hanging bolts at the bottom of a bogie that is suspended from a rail and runs, has an arm that protrudes from the bottom of the bogie in both directions, and an opening at the end of this arm. The bolt is inserted into a bolt head insertion hole formed by pressing the top surface of the bolt head and sandwiching both opposing side surfaces, and the outer end of the lower piece of this arm part, so that the bolt protrudes downward from the arm. A flat type cable hanger consisting of a U-shaped groove cut out for the purpose, and the width of this groove is smaller than the width of the bolt head insertion hole.