JP2576330Y2 - Take-up reel for steel cords - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding reel for steel cords.

[0002]

2. Description of the Related Art Steel cords for reinforcing rubber products and filaments for obtaining the same are wound on reels or bobbins at the stages of wire drawing, twisting and final products. The take-up reel has flanges made of a metal disk fixed to both ends of the winding drum. In order to stop a terminal portion of a steel cord or a filament (hereinafter, referred to as a steel cord) wound on the winding drum, the winding reel is generally used.
As in JP-A-62067, an outlet hole is provided in the flange,
The steel cord end portion was pulled out of the flange from the lead-out hole, and was sandwiched and locked by a V-shaped or U-shaped clip provided on the flange outer surface at a position separated from the lead-out hole. However, in this structure, when stopping the steel cord, the terminal part must be guided to the outside from the lead hole and bent at the lead hole edge, and when using the steel cord, it must be pulled out from the lead hole to the inside of the trunk. The work was complicated because it was not necessary. Furthermore, since the cord end is bent, there is a problem that when the end is released when the steel cord is removed from the hole, the cord gets entangled or entangled, causing troubles such as cutting the cord in a calendar operation. As another structure for terminating the end of the steel cord, a V-shaped or U-shaped notch is provided at the outer edge of the flange in place of the lead-out hole. Is easy, but the notch reduces the strength of the reel, and at the same time the notch cuts fingers when handling the reel,
There was a safety problem. Japanese Utility Model Laid-Open Publication No. 3-62069 discloses a structure in which a long hole is formed along the outer edge of a flange and a clip is provided on the outer surface of the flange in the vicinity thereof. Since it has to be plastically deformed into a V shape and the V-shaped bent portion must be stopped with a clip, it is complicated, and there is a problem that a considerable length of the steel cord terminal is easily lost and uneconomical.

The present invention has been devised in order to solve the above-mentioned problems, and the purpose of the present invention is to provide a simple structure and a simple operation to keep the end of a steel cord in a straight line. An object of the present invention is to provide a practical take-up reel for steel cords that can be held inside and can be pulled out while holding a terminal portion even when a steel cord is used.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an openable and closable terminal in which a clamping portion for a terminal portion of a steel cord or the like is located on the inner side of the flange near the outer peripheral edge of a flange of a take-up reel. A base part fixed to the vicinity of the outer peripheral edge of the flange, and a flange that is continuous with the base part and is inner than the outer line of the curled part of the flange outer edge in a normal state. A pressing operation portion urged in a direction away from the outer surface, a projection portion extending from the pressing operation portion to the flange inner surface side through a hole formed in the flange, and a holding portion bent upward from the front end of the projection portion in a series. It is configured to have a shape similar to a fishhook when viewed from the side as a whole.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show a first embodiment of a take-up reel for steel cords according to the present invention.
Reference numerals 2 and 2 denote a pair of circular flanges fixed to the end of the winding drum 1.
Are provided, while a plurality of reinforcing ribs 21,
21 are provided. Reference numeral 3 denotes a terminal holding tool of a flange inside holding type characterized by the present invention.
At one or more locations near the outer periphery of one or both. In the first embodiment, the terminal holder 3 is provided with a base 30 fixed to the vicinity of the outer peripheral edge of the flange, a pressing operation unit 31 which is continuous with the base 30 and is normally urged in a direction away from the outer surface of the flange. Pressing operation section 31
And a holding portion 33 bent upward from the front end of the projecting portion, and is integrally and continuously formed, and has a shape similar to a fishhook when viewed from the side. The haunting part 32
Protrudes toward the inner surface of the flange through a hole 22 penetrating the thickness of the flange 2, and the holding portion 33 contacts the inner surface 23 of the flange or faces the inner surface 23 of the flange so as to have a gap smaller than the diameter of the steel cord W. doing.

In the first embodiment, the terminal holder 3 is made of a wire bent into a tongue-like contour when viewed from the front, and the pressing operation part 31 and the projecting part 32 are made of two substantially parallel lines. The holding section 33 has two wires connected in a hairpin shape. FIG. 5 shows a second embodiment of the present invention, in which the terminal holder 3 comprises a leaf spring. In any of the embodiments, the base 30 is welded to the outer surface of the flange. However, the present invention is not limited to this. Although not shown, a wire rod and a leaf spring are combined, for example,
1 is a leaf spring, and then the projecting part 32 and the holding part 3
3 may be composed of a wire.

FIG. 6 shows a third embodiment. In this embodiment, the terminal holder 3 has a base portion 30 and a pressing operation portion 31 utilizing a part of the curl portion 20. That is, a part of the curl portion 20 is bent in a direction away from the outer surface of the flange to form a tongue piece 200 provided with a spring property, and the free end of the tongue piece 200 has a projecting part 32 and a pinching part 33. Is fixed to the terminal holder 3 having a linear or plate shape.
FIG. 6 (a) shows the end of the projecting portion joined to the inner surface of the tongue piece 200, and FIG. 6 (b) shows the end of the projecting portion fixed to the outer surface of the tongue piece 200 by welding or winding. I have.

In any of the embodiments, the pressing operation unit 31
Is required to be located inside the outer line of the curled portion 20, and the holding portion 33 is normally located outside the effective winding width so as not to hinder the winding process of the steel cord W. Is desirable. FIGS. 7 (a) and 7 (b) show a structure for more securely positioning the holding portion 33 outside the effective winding width. A concave portion 25 is formed, and the holding portion 33 is positioned in the normal state. With such a configuration, there is no problem even if the reinforcing ribs 21 are provided so as to bulge outward. In the case of FIGS. 7A and 7B, the terminal holder 3 can take any of the structures of FIGS.

[0009]

Since the present invention has the above-described structure, the holding portion 33 is in contact with the flange inner surface 23 or opposed to the flange inner surface 23 with a slight gap when the pressing operation portion 31 is not operated. When the steel cord W is wound around the winding drum 1 and the terminal portion w is stopped, the pressing operation portion 31 is pressed by a finger as shown in FIG. 3A, and the base portion 30 is used as a fulcrum. The pressing operation part 31 is displaced so as to approach the flange outer surface 24, and accordingly the projection part 32 protrudes into the inside of the flange, and as shown in FIG. 3 (b), the holding part 33 is opened sufficiently separated from the flange inner surface 23. State. Then, the terminal portion w held by one hand is inserted between the holding portion 33 and the flange inner surface 23 from above, and the pressing operation portion 3 is inserted.
When the pressing of 1 is released, the retracting portion 32 projects outside the flange by the restoring force, so that the holding portion 33 is automatically closed,
The terminal portion w is provided on the inner surface 23 of the flange as shown in FIGS. 3 (c) and 4 (b).
Is firmly sandwiched between Therefore, the terminal stopping operation is easy. Thereafter, when using the steel cord W, as shown in FIG. 4, the terminal portion w extending from the holding portion 33 is lifted upward, and the holding by the holding portion 33 is instantly released. Can be. Since the terminal w is not forcibly bent, the terminal can be used without waste.

[0010]

According to the first aspect of the present invention described above, in the vicinity of the outer peripheral edge of the flange of the take-up reel, the holding portion 33 for the end portion of the steel cords is located on the inner side of the flange so that the terminal can be freely opened and closed. Equipped with the tool 3,
The terminal holder 3 is made of a wire material or a leaf spring, and is fixed to the vicinity of the outer peripheral edge of the flange, and is separated from the outer surface of the flange on the inner side of the outer line of the curl portion 20 at the outer edge of the flange in a normal state. A pressing operation portion 31 urged in the direction of rotation, a projecting portion 32 extending from the pressing operation portion 31 through the hole 22 formed in the flange 2 toward the inner surface of the flange, and a holding portion 33 bent upward from the front end of the projecting portion. The end of the steel cord can be held straight inside the reel with a simple operation by simple operation, and the terminal can be used even when the steel cord is used. The terminal holder 3 can be pulled out as it is, and the entire terminal holder 3 is formed by processing a linear material or a leaf spring to form the base 30 and the pressing operation unit 3.
Since 1 and the holding portion 33 have a shape similar to a fishhook,
Since the number of parts is small, the structure is very simple and can be obtained at low cost, and the pressing operation portion 31 is located inside the outer line of the curl portion 20 at the outer edge of the flange, so that the take-up reels are arranged adjacent to each other. An excellent effect is obtained such that the user is not inadvertently operated even if they are touched, and there is no fear of damaging the fingers and the like. According to claim 3, the flange 2
Has a concave portion 25 depressed outside the flange inner surface 23, and the holding portion 33 of the terminal holder 3 is located in this concave portion, so that the holding portion 33 can be positioned outside the effective winding width. An excellent effect is obtained.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing a first embodiment of a take-up reel for steel cords according to the present invention;

FIG. 2 is a front view of the same.

FIG. 3 is an enlarged view showing a main part of FIG. 1 with a state change.

FIG. 4 is an explanatory view showing the state of FIG. 3 (c) with an outer surface and an inner surface of a flange.

FIG. 5 is a sectional view of a main part of a second embodiment of the present invention.

FIG. 6 is a sectional view of a main part of a third embodiment of the present invention.

FIG. 7 is a cross-sectional view illustrating a fourth embodiment of the present invention.

[Explanation of symbols]

 2 Flange 3 Terminal Holder 20 Flange Outer Surface 23 Flange Inner Surface 30 Base 31 Pressing Operation Part 32 Retracting Part 33 Holding Part

Claims (3)

(57) [Scope of request for utility model registration] (1) In the vicinity of an outer peripheral edge of a take-up reel flange,
The holding portion 33 for the end portion of the steel cord is provided with an openable / closable terminal holder 3 located on the inner side of the flange, and the terminal holder is made of a wire material or a leaf spring, and is fixed near the outer peripheral edge of the flange. A base 30, a pressing operation part 31 which is continuous with the base 30, and which is normally urged in a direction away from the outer surface of the flange inside the outer line of the curled part 20 of the outer edge of the flange, and from the pressing operation part 31 to the flange 2. A protruding / recessed part 32 extending toward the inner surface of the flange through the formed hole 22 and a holding part 33 bent upward from the front end of the protruded / recessed part are formed in a series, and the whole is formed in a shape similar to a fishing hook when viewed from the side. Winding reel for steel cords. 2. A tongue piece portion 20 having a curl portion 20 which is partially bent in a direction away from the outer surface of the flange to provide a spring property.
2. The take-up reel for steel cords according to claim 1, wherein the take-up reel includes a terminal holder 3 fixed to a free end of the tongue piece 200. 3. The steel according to claim 1, wherein the flange has a concave portion depressed outside the inner surface of the flange, and the holding portion of the terminal holder is located in the concave portion. Winding reel for cords.