JP3108217U - Weight lifting weight disc - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily lift a weight disk for weight lifting with an outer peripheral part.
When a weight disk 1a to be mounted on a weightlifting barbell A is formed such that a cross section of an outer peripheral portion of the weight disk body is tapered outward, and the weight disks 1a to 1c are overlapped with each other. Alternatively, gaps c and c ′ that allow a finger to be put on the outer periphery of the weight disk 1a when placed on the floor surface d are provided to improve ease of holding.
[Selection] Figure 1

Description

  The present invention relates to a weight disc used for weight-lifting competitions, training, and the like, and more particularly to a weight disc for weight lifting that can be attached to and removed from a barbell bar easily and safely.

  6 and 7 show a conventional weight lifting weight disk. Conventionally, a weight disk 102 of a barbell 100 used for weightlifting competitions, training, and the like is mounted by sequentially inserting a necessary number of weight disks 102 into sleeves 101a at both ends of the bar 101 and overlapping them without gaps (FIG. 6). ). The weight disk 102 is inserted into the clamp 103 from the end of the sleeve 101a and abuts against the center of the side surface of the outermost weight disk 102. The lever 103a is turned to tighten the sleeve 101a, and between the sleeve 101a and the stopper 101b. Each weight disk 102 is fixed in a sandwiched manner. Since the attachment and removal of the weight disk 102 is performed each time the weight weight is increased or decreased, the above-described operation needs to be performed safely and easily.

Further, the conventional weight disk 102 as described above is composed of a metal weight 102a at the center and an elastic body 102b provided around the outer periphery thereof, and the outer peripheral surface is small chamfered, but the cross section thereof is approximately. It is formed in a U shape (substantially right angle) and has the same shape as the peripheral surface of a circular cylinder. Therefore, when the weight disk is placed on the floor surface or the like, the outer periphery of the weight disk 102 and the floor surface are in close contact with each other with no gap (FIG. 7). Therefore, when lifting the weight disk 102 placed on the floor surface, the user lifts the disk by placing his / her finger on the outer peripheral surface of the disk and moves as it is. It is necessary to apply a considerable amount of force, and since it is easy to slide, it is difficult to work, and it may take time to replace the weight disk 102 during the competition.
Further, when the conventional weight disk 102 is overlapped with the weight disk 102 that has already been mounted by being inserted into the sleeve 101a of the bar 101, the weights 102 are in a state of being attached with almost no gap (see FIG. FIG. 6).
Therefore, when replacing the overlapped weight disk 102, the user puts his / her finger on the outer periphery of the weight disk 102 mounted on the outermost side and slides it toward the end of the sleeve 101a to remove it.
However, the above-described weight disk 102 is formed like an outer peripheral surface of a cylinder, and small chamfering or R processing is applied to the corner of the outer peripheral surface. A burden is placed on the fingertip, and it may take time to exchange the weight (see, for example, Patent Document 1).

  Similarly, in the work of adding the weight disk 102, it is inserted into the sleeve 101a with the outer periphery of the disk, and is further slid along the sleeve 101a, but when it abuts against the side surface of the weight disk 102 already mounted, In some cases, the fingers on the outer circumference of the weight disk to be added may be caught, and it was necessary to perform the work carefully to avoid injury.

Japanese Utility Model Publication No. 58-8273

  The present invention has been made in view of the above-described conventional circumstances, and the subject of the invention relates to a weight lifting weight disk, and the work of inserting and inserting the disk into the sleeve of the barbell bar can be easily and safely performed. It is to have a function.

  In order to solve the above-mentioned problems, a first device is a weight lifting weight disk in which a cross section of an outer peripheral portion of a weight disk body is tapered outward.

  In the second device, the cross section of the outer peripheral portion of the weight disk is formed in a substantially semi-elliptical shape.

  According to a third aspect of the present invention, there is provided a weight lifting weight disk according to claim 1 or 2, wherein a finger-engaging concave groove is provided on a side surface of the outer peripheral portion of the weight disk.

  According to a fourth aspect of the present invention, in the weight lifting weight disk according to claims 1 to 3, the outer peripheral portion of the weight disk is made of an elastic material such as rubber or synthetic resin.

  According to a fifth aspect of the present invention, in the weight lifting weight disk according to any one of claims 1 to 4, a display surface for displaying an advertisement is provided on a side surface of the weight disk.

Since this invention is comprised as demonstrated above, there exists an effect as described below.
The first device is formed so that the cross section of the outer peripheral portion of the weight disk body is tapered outward, so that when the weight disks are mounted in a stacked state, A substantially V-shaped gap in which a finger can be inserted between the outer peripheral portions can be formed.
Therefore, when lifting a heavy weight disk or removing it from the bar, insert your finger into the gap on the outer periphery of the disk, place your finger on the back of the outer periphery of the disk, lift it from the floor, or follow the sleeve of the bar. The operation of sliding the disc can be easily performed. When adding a weight disk, slide the finger on the outer periphery of the disk and hit the outer side of the weight disk that is already installed. Therefore, it is possible to ensure the safety of the work without causing the fingertips to get caught between the disks excessively during the work.

  Further, in the second device, the weight lifting weight disk according to claim 1, wherein the weight disk has a substantially semi-elliptical cross section at the outer peripheral portion thereof, so that a beautiful curved surface provides an aesthetic appearance. While maintaining the same as described above, easy workability and work safety can be maintained.

  Further, the third invention is the weight lifting weight disk according to claim 1 or 2, wherein a finger hanging concave groove is provided on a side surface of the outer peripheral portion of the weight disk, so that the heavy weight disk is lifted. Even when removing from the bar, the fingers can be inserted into the gap formed on the outer periphery of the disc and the finger can be kept in the above groove for finger grip, improving the grip and improving the workability. be able to.

  According to a fourth aspect of the present invention, in the weight lifting weight disk according to any one of claims 1 to 3, the outer periphery of the weight disk is made of an elastic material such as rubber or synthetic resin. It is possible to improve the grip and touch feeling.

  According to a fifth aspect of the present invention, in the weight lifting weight disk according to any one of claims 1 to 4, a display surface for displaying an advertisement is provided on a side surface of the weight disk. According to this weight disc, the side surface of the weight disc that is easily accessible during the competition can be used as a space for displaying a logo or a mark of the competition sponsor.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a weightlifting barbell A equipped with weight disks 1a to 1c embodying the present invention. The barbell A is composed of a bar a and weight disks 1a to 1c that are fitted into sleeves a1 provided at both ends of the bar a. Each of the weight disks 1a to 1c is attached and detachably mounted so as to be sandwiched between a stopper 11 and a clamp 12 provided on the sleeve a1. In the present embodiment, three weight disks 1a to 1c are mounted on the bar a. However, the weight disk is increased or decreased according to the necessary set weight of the barbell. In addition, necessary weight disks having different weights are prepared.

  1 and 2 (a) are longitudinal sectional views showing the disk 1a. The disk 1a is composed of a metal weight 2 that is inserted into the sleeve a1 of the bar a and an elastic body 3 that is attached to the outer periphery thereof. The metal weight 2 is formed by superposing a pair of circular plates 2a and 2b and connecting them by five bolts 2c arranged along the circumference. By combining these circular plates 2a and 2b, a concave groove 2d is formed on the outer periphery. And an insertion hole 2e into which the sleeve a1 is inserted is formed at the center of the metal weight 2. The above-mentioned concave groove 2d is for fitting a convex portion 3a provided along the inner periphery of the elastic body 3, and the outer periphery of the metal weight 2 is made of rubber or synthetic resin by the fitting. The elastic body 3 is firmly fixed. The weight disks 1a to 1c described above are adjusted so that a weight obtained by adding the metal weight 2 and the elastic body 3 becomes a set weight, for example, 10 kg, 15 kg, and 25 kg.

The weight disk 1a configured as described above has a substantially semi-elliptical cross-sectional shape by forming the cross-sectional shape of the outer peripheral portion of the elastic body 3 into a taper shape and rounding the tip portion into an arc shape. It is. As a result, a substantially V-shaped gap c is formed between the outer peripheral portions of the weight disks 1a to 1c in the mounted state (FIG. 1). Further, the weight disks 1b and 1c are configured in the same manner as the above-described weight disk 1a. Therefore, in the mounted state, each of the weight disks 1a to 1c is in a state where only the outermost peripheral part of each arc part comes into contact.
When the weight disks 1a to 1c are exchanged in the above-described mounted state, the disk can be held by inserting a fingertip into a V-shaped gap c formed on the outer periphery of each of the weight disks 1a to 1c. The operation of removing the clamp 12 and removing the weight disks 1a to 1c is naturally and speedy. Also, as shown in FIG. 4, when adding the weight disk 1a ', there is no fear that the finger is pinched between the outer periphery of the weight disk 1a.
Furthermore, as shown in FIG. 5, when lifting the weight disk 1a placed on the floor surface, a gap c 'is formed between the floor surface and the outer periphery of the disk, so even a heavy weight disk 1a can be easily used. It can be lifted and moved to the mounting operation as it is.

  In the above-described embodiment, the cross section of the outer peripheral portion of the weight disks 1a to 1c is formed of a taper surface and an arc surface, and is formed into a substantially elliptical shape, but the cross section is tapered so as to form a substantially V-shaped gap. For example, even if it is an accurate ellipse, a taper-shaped cross section may be formed by combining straight lines. The weight disk 1d shown in FIG. 2B is formed in a taper shape by forming the cross-sectional shape of the outer peripheral portion into a substantially trapezoidal shape. Further, the weight disk 1d is configured such that arc-shaped concave grooves 4 are provided on both side surfaces along the outer peripheral portion of the elastic body 3 'so that a fingertip can be hooked on the concave grooves 4. By providing the concave groove 4 in this manner, the weight disk 1d can be easily carried when being carried, and the work operation can be facilitated. These are preferable because they can speed up the exchange work of the weight disk and shorten the competition time.

  The weight disk 1e shown in FIG. 3 has a display surface 5 on the side surface of the disk, in this case, the outer surface of the elastic body 3, and a weight display 7 indicating the weight of the weight disk 1e on the display surface 5 The sponsor's marks 6a to 6c of the association are displayed, and it becomes a conspicuous presence together with the players who are noted during the competition, and can contribute to advertising related to sports. The marks and logos described above may be printed on the display surface or may be raised in a convex shape, or may be printed on a sticker and pasted.

1 is a front view showing a part of a barbell on which a weight disk embodying the present invention is mounted, with a part cut away. FIG. (A) is a longitudinal cross-sectional view which shows the weight disk which implemented this invention, (b) is a longitudinal cross-sectional view which shows the weight disk which formed the cross-sectional shape of disk outer periphery in the substantially trapezoid. The side view which shows the weight disk which provided display surfaces, such as a sponsor, on the disk side surface. The perspective view which shows the state which added the weight disk to the sleeve of the bar end. The perspective view which shows the state which lifts the weight disk set | placed on the floor surface. FIG. 6 is a front view showing a part of one end of a barbell on which a conventional weight disk is mounted. The perspective view which shows the state which lifts the conventional weight disk put on the floor surface.

Explanation of symbols

A ... Barbell a ... Bar a1 ... Sleeve 1a, 1b, 1c, 1d, 1e ... Weight disk c, c '... Gap 2 ... Metal weight 3 ... Elastic body 4 ... Dove groove 5 ... Display surface 6a-6c ... Mark

Claims (5)

  A weight lifting weight disk, wherein the weight disk main body is formed so that a cross section of an outer peripheral portion of the weight disk main body is tapered outward.   2. The weight lifting weight disk according to claim 1, wherein the weight disk body has a substantially semi-elliptical cross section.   3. The weight lifting weight disk according to claim 1, wherein a finger-hanging groove is provided on a side surface of an outer peripheral portion of the weight disk body.   4. The weight lifting weight disk according to claim 1, wherein an outer peripheral portion of the weight disk main body is made of an elastic material such as rubber or synthetic resin.   5. The weight lifting weight disk according to claim 1, wherein a display surface for displaying an advertisement is provided on a side surface of the weight disk main body.

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