JPS5932178Y2 - metal cable drum - Google Patents

Description

[Detailed description of the device] This device is designed to be fixed at right angles so that one end is fixed to the inner surface of one side of the flange, and the other end is fixed to a position near the one side of the flange on the outer periphery of the winding drum with a circular cross section, which is arranged between both sides of the flange. refracted into OF
This invention relates to an improvement in the shelves of a metal cable drum, which includes a plurality of shelves radially arranged and fixed at appropriate intervals over almost the entire circumference of the winding drum so as to place and fix the winding start end portion of a cable or the like.

A schematic front view of this type of metal cable drum is shown in Figure 1, where 1 is a metal cable drum, 2.2 is a metal circular collar, and the circular collars 2 and 2 are concentrically arranged. A winding drum 3 having a circular cross section is disposed.1. The flanges 2, 2' are fixed at right angles to both ends thereof, respectively.

A is a shelf, which is formed from a thin plate, and the ridge line between the flange and the web is a light and thin shape steel cut to a preset length with a roundness of about 15 mm (roughness in the longitudinal direction of the shaped steel) The flange is bent at right angles so that it protrudes inward at the preset position, and both lengthwise ends are attached to the inner surface of the flange 2 on one side and the winding drum on the side of the flange 2. It is fixed to the outer circumferential surface near the end of the drum 3 by welding or the like so that its upper surface is substantially parallel to the central axis of the winding drum 3.

The shelf 4 is a plurality of solid bed stones arranged radially around the outer periphery of the collar 2 and the winding drum 3 at appropriate intervals, and the height from the winding drum 3 is placed on the shelf 4. Cable winding starting end 5' (
(not shown in the drawings) are adjusted to form an involute curve with respect to the winding drum 3.

In addition, the cable winding starting end portion 5' placed on the upper surface of these shelves 4 is in contact with the inner surface of the collar 2, and in this state, the cable winding starting end portion 5' is pre-wired into the inner surface of the collar 2 with a hemp rope or the like (not shown in the drawing). It is fixed to the side surface and secured to an eye bolt or the like.

One of the functions of the shelf 40 in a conventional metal cable drum having such a configuration is that the shelf 40 is a winding drum, as can be understood from Fig. 2, which shows an enlarged view of a partially cutaway main part for explanation of the mechanism of the shelf. The purpose is to smoothly wind the cable 5 around the winding drum 3 using the perpendicular surface 9 to the winding drum 3 as a guide post.

Distantly related to the above purpose, when winding the cable 5 onto the winding drum 3, the portion where the cable 5 contacts the shelf 4 and the possibility of contact so that the shelf 4 does not damage the cable 5 as a finished product. Appropriate roundness is formed in certain parts.

For example, a method such as adopting an iron block having the same shape as the outer shape of the shelf 4, and machining each end face, each ridgeline formed by the end face, and each vertex to make it smooth and rounding the ridgeline and the apex, respectively. The shelf 4 may be manufactured as a synthetic resin molded product in a shape that does not cause damage to the cable 5, or the cable 5 may be rolled up while the cable 5 is being wound on the conventional shelf 4.
A method has been adopted in which a cushioning material, such as a sponge, is wrapped around the parts that come into contact with the parts and the parts that may come into contact.

However, all of the shelves 4 provided with these methods of protecting the cables 5 from damage are expensive, so there is a need for a shelf 4 that is inexpensive to manufacture and that fully performs the functions described above.

This idea was invented in view of the above, and it is easy to work with, therefore it can be manufactured at low cost, and when winding the cable as a finished product onto the winding drum, it does not cause any damage to the cable. The purpose is to provide a shelf for mounting and fixing the starting end of a cable winding on a metal cable drum capable of smoothly guiding a cable and winding the cable onto a winding drum.

This invention will be explained in detail below with reference to the drawings showing one embodiment thereof.

Figure 3a is an enlarged perspective view for explaining the manufacturing process of a conventional four-shelf unit in a metal cable drum;
FIG. 2 is a perspective view of the lower part of the XX cross section in the direction of the arrow;

The shelf 4 has a shape similar to a commercially available thin plate longitudinal channel steel, and has a shape formed by a web 9 of the channel steel and flanges 10° 10 at both ends of the web 9, respectively. Ridge line 7. T' is rounded (R = about 15 mm), and the plate thickness is around 2 ken.

The above-mentioned track-shaped steel piece is prepared by cutting the track-shaped steel piece in advance into a length equal to the sum of the width of the shelf 40 and a preset height, and the width of the shelf 4 is measured from one end of the narrow-channel steel piece. A triangular notch with an apex angle of 90' is formed in each of the flanges 10, 10 at a length equal to the apex of the circumferential rounded end 8.8 of the web 9, and then the apex 8.
．． Round the web 9 between 8 to the bent part (R = about 15 mm)
is attached and the flange io is 90° so that io is on the inside.
It was manufactured by bending and then butt welding the notch ends of both flanges 10 degrees 10 to form a weld line 6.

The notch in the triangular flange 10.10 facilitates the 90° bending of the track section steel, and the flange io,
This is to ensure continuity with in as the inside.

In this case, the 7 flange 10.10 butt weld line 6 connects the rounded end of the ridge line in the flange io, io and the flange 10.
．． 10, and this part can be welded smoothly, but the 90' bent part i
The roundness formed by the flange and the web in this case is not in an abutting state because of the notch force due to the formation of the triangular notch, and the apex portion 8.8 of the notch is 90 with the web 9 as the flange io, io + inside When bent, they form corners at which contact, often causing trauma, occurs when the finished cable is guided on the sides 9 of the shelf 4 and wound onto the winding drum 3.

Therefore, it is strongly desired to remove the corners.

As shown in FIG. 4, the invention is such that a force is applied from one end of the track section steel to each flange 10.10 at a position corresponding to the width of the shelf 4. Ridge lines 7, 7' between the flanges 10 and 10 and the web 9
A rounded notch 12.12 is formed on the apex 11.11 with the apex near the terminal end of the flat part beyond the terminal end of the rounded part (about R-1511L7+!) formed in the top 11.11, The flanges io and io between the top portions 11 and 11 and the web 9 are bent at 90 degrees with the flanges io and io on the inside so that the bending line is rounded (R=about 5 mm).

FIG. 5 also shows another embodiment of the present invention, in which the top portion 11.
Only part 11 is rounded, and from this rounded part to the edge of the flange is a linear notch and a bend.

By forming the shelf 4 in this way, all the ridge lines and corners of the shelf 4 can be rounded (R = about 15 mm) easily and easily, and the shelf 40 can be fixed at right angles to the winding drum 3. The portion forming the section is the web 9 surface of the track section steel, and the ridge lines r and γ with the flange 10 and 10 and their apexes are each rounded (about R-15).

Therefore, during winding of the cable onto the winding drum 3, all parts where the cable comes into contact with the shelf 4 or where there is a possibility of contact are rounded (R).
= approx. 5 can be safely wound onto the winding drum 3 without any fear of injury.

Since this device has the above-mentioned configuration and function, according to this device, the corners formed by bending at both ends of the bent portion ridge of the shelf 4 can be removed, and this portion can be easily rounded. R=
15 mm) can be formed from the flanges 10 and 10 on both sides of the track section steel that form the shelf 4 without any processing such as mechanical field soil or wrapping of cushioning material, so the manufacturing cost of the shelf 4 can be reduced. In addition to being fixed to the winding drum 3 of the shelf 4, the cable 5 as a finished product can be safely and smoothly wound onto the winding drum 3 using the fixing column as a guide.Practical effect is remarkable.

[Brief explanation of drawings]

Fig. 1 is a schematic front view for explaining a conventional metal cable drum equipped with a shelf on which the starting end of cable winding is placed, and Fig. 2 is an enlarged front view of a partially cutaway part for explaining the function of the shelf in Fig. 1. , FIG. 3a is a perspective view for explaining the manufacturing process of the conventional shelf unit in FIG. 1, FIG. FIG. 5 is a perspective view for explaining the manufacturing process of a shelf according to the present invention, and FIG. 5 shows another embodiment of the present invention. 1...Metal cable drum, 2...
Tsuba, 3... Winding barrel, 4... Shelf, 5...
... Winding cable, 5'... Cable winding start end, 6... Butt welding line, 7゜1'...
...Vertical groove steel ridge line portion, 9...Light earthquake steel wafer, 10...Rail groove steel flange, 11...
・Top of bending part notch, 12...Bending part notch.

Claims (1)

[Scope of utility model registration request] The metal cable drum is equipped with an inverted shelf, one end of which is fixed to the inner surface of the drum brim plate, and the other end of which is fixed to the body.The light grooved steel holding the two shelves has rounded edges on the flange and web. A metal cable drum characterized in that a cutout having a rounded shape and a rounded shape is provided in a flat part of a flange extending beyond the rounded edge of the ridge at the apex of the inverted shelf.