JPH0730255U - reel - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a lightweight, sturdy, inexpensive, and easy-to-use reel. [Structure] A bearing 2 having a cylindrical shape, and a disk-shaped brim portion 1 which is fitted at both ends thereof so as to be opposed to each other, and a structure in which an inner ring 3 is held between the both flanges. Has an outer edge which is continuously bent outward to form an overhanging portion 1C, has a stepped portion having substantially the same diameter as the inner ring supporting the inner ring, and a plurality of stepped portions are crossed across the stepped portion. Spoke-shaped uneven portions 1D are formed, and punched through holes 1E are provided between the uneven portions. Since the step portion that receives the overhang of the outer circumference and the inner ring and the spoke-like irregularities act as reinforcing ribs orthogonal to each other, the collar portion has high rigidity even if it is a thin plate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a reel for winding a tape-shaped thin plate or the like in which components are continuously manufactured or attached.

[0002]

[Prior art]

 When processing a tape-like material to manufacture many identical parts, or when attaching a work piece to a carrier tape and holding it through multiple processing steps, a tape-like material or carrier tape Is wound on a reel and then processed while being wound on another reel. A large number of parts manufactured in this way are transported or stored in reels until they are separated into individual parts for use. In addition to such industrial applications, reels are used in various places in consumer equipment. Some of these reels are molded of plastic, but those used for industrial purposes require continuous operation for a long time in the manufacturing process, so large reels are required. However, it is difficult to make a large-sized one with plastic, and because the metallic one is superior in terms of strength and durability, the large-sized reel has to be made of a metal, but the collar part In the above, the inner surfaces that hit the winding section must have equal intervals, and a pair of flanges must be kept parallel to each other over the entire surface. Therefore, the rigidity of the collar portion becomes a problem. Therefore, if the collar portion is to be manufactured from a steel plate, the thickness of the steel plate must be increased to some extent in order to maintain rigidity, which makes it heavy and difficult to handle. In addition, in order to reduce the weight, there is also one manufactured by welding the flange portion with a round bar, but this has a problem that the number of manual processes such as welding increases and the cost becomes high.

[0003]

[Problems to be solved by the device]

 The present invention aims to provide a reel that is lightweight, sturdy, inexpensive, and easy to use.

[0004]

[Means for Solving the Problems]

 The reel is composed of a cylindrical bearing part and disc-shaped brim parts that are fitted to both ends of the reel so as to face each other, and the inner ring is held between these two brim parts. Is continuously bent outward all the way to form an overhanging portion, and has a stepped portion with approximately the same diameter as the inner ring that supports the inner ring, and a plurality of spoke-like irregularities are crossed across this stepped portion. Parts are formed, and punching through holes are provided between the uneven parts.

[0005]

[Action]

 In order for the pair of collars on the reel to remain parallel to each other over the entire surface, the collars must be given adequate rigidity. In the present invention, the stepped portion for holding the inner ring is provided in the collar portion, so that the rigidity of the collar portion is increased together with the overhanging portion of the outer edge. Further, since the spoke-like concave and convex portions are formed across the step portion, the rigidity of the collar portion against the dish-shaped bend is significantly increased. That is, since the reinforcing ribs that are orthogonal to each other are formed by the overhanging portion, the stepped portion, and the spoke-like uneven portion, the rigidity is enhanced against bending of the collar portion in all directions.

[0006]

【Example】

 1 to 3 show the configuration of an embodiment of the present invention. In the figure, reference numeral 1 denotes a pair of flange portions, which are aluminum discs which are integrated with the bearing portion 2 by means of screws 4 or caulking, with the bearing portion 2 and the inner ring 3 being sandwiched therebetween. A step 1B having the same diameter as the inner circumference of the inner ring is provided in the hole 1A fitted with the boss 2A inwardly at the position of the inner ring 3, and the inner ring 3 is attached to the outer circumference of the step 1B so that the inner ring 3 serves as the bearing 2. In order to determine the position concentrically with each other, the distance between both collars 1 is widened on the outer peripheral side from the step 1B. In addition, the outer peripheral edge is flared outward in a trumpet shape to provide a projecting portion 1C. A plurality of spoke-shaped uneven portions 1D are provided radially across the step 1B around the axis, and holes 1E are provided between the uneven portions 1D. 1G is a hole for screw fixing.

The bearing 2 is provided with a hole 2B to be inserted into the shaft of a winding device (not shown). The tape is adapted to be wound on the inner ring, and a cut (not shown) is provided on the inner ring 3, and when the tape is wound, the end of the tape is hooked there. Since the spoke-shaped uneven portion 1D is provided to increase the bending rigidity to a certain value, the height of the unevenness does not have to be too high. As long as the inner ring 3 can be held, the step 1B in the collar portion 1 does not have to be too high, as in the case of the uneven portion 1D. As a result, the press working of the collar portion 1 becomes easy.

[0008]

[Effect of device]

 According to the present invention, the number of processing man-hours is small, and since the manufacturing is easy, the cost can be further reduced. In addition, the reinforcement of the rigidity by the spoke-like irregularities and overhangs made it possible to reduce the thickness of the collar and use lightweight materials, further reducing weight.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a front view of an embodiment of the present invention.

FIG. 3 is a perspective view of an embodiment of the present invention.

[Explanation of symbols]

 1 Collar part 1A Hole part 1B Step 1C Overhang part 1D Uneven part 1E Hole part 2 Bearing part 2A Boss part 2B Hole part 3 Inner ring 4 Screw stop

Claims (1)

[Scope of utility model registration request] 1. A structure comprising a cylindrical bearing portion and disc-shaped flange portions fitted to opposite ends of the cylindrical bearing portion, wherein an inner ring is held between the flange portions, and the flange portion is formed. The outer edge is continuously outwardly bent inward to form an overhanging portion, and has a stepped portion having substantially the same diameter as the inner ring that supports the inner ring, and a plurality of spokes are formed across the stepped portion. A reel having a concavo-convex portion formed therein and a punching through hole provided between the concavo-convex portion.