JP2015223479A - Barbell and bench press exercise device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a barbell in which an operation of a training person to get on and off to a bench can be performed smoothly, and the contact with a chest of the training person can be avoided as much as possible during training.SOLUTION: A barbell is characterized as follows: a main bar 2 with mounting parts 2a where a weight W is fitted and mounted at both ends is included; a pair of extension rods 3 is integrally projected toward the upper part of the main bar inside from the pair of mounting parts of this main bar; a pair of grip bars 4 extended in the direction coming close mutually and formed substantially in parallel to the main bar is provided on the upper ends of these extension rods; and a cross section of the fitting part between the main bar and the weight is formed in a non-perfect circle shape, and a linear part F is formed in at least a lower portion of the weight.

Description

  The present invention relates to a barbell and a bench press apparatus using the barbell.

  In general, in a bench press device using a barbell, a trainer lies on the bench and grasps the barbell bar with a width slightly wider than the shoulder width. By repeatedly raising and lowering, muscle training is performed.

  And, for example, as shown in Patent Document 1, the barbell is configured such that weights are attached to both ends of a single long bar. In the state where the barbell is lowered, the trainer holds the bar. It is in contact with the chest to support the weight of the barbell.

Japanese Utility Model Publication No. 2-45768

  By the way, in the conventional barbell and the bench press apparatus using the same, during the training, the barbell bar is always located above the chest of the trainer, and when the barbell is lowered Careful operation is required to avoid shock to the chest.

  However, it is assumed that an unskilled trainer often fails to learn the raising and lowering movements according to his / her physical strength, and hurts the chest.

  In addition, as described above, the bar and the head of the trainer are slightly overlapped in the vertical direction, so that there is a problem that the trainer easily gets in the way of getting on and off the bench.

  In order to solve such a problem, for example, when the barbell is lowered, it is conceivable to add a stopper for restricting the lowest position, but in such a countermeasure, the former problem described above is considered. Can be dealt with, but it does not solve the latter problem.

  The present invention was made in order to solve such a problem that remains in the prior art, and allows the trainer to smoothly get on and off the bench, and with the chest of the trainer during training. It is an object to be solved to provide a barbell capable of avoiding contact as much as possible and a bench press apparatus using the barbell.

  The barbell of the present invention includes a main bar provided with mounting portions to which weights are fitted and mounted at both end portions, and the main bar is located on the inner side of the pair of mounting portions and directed upward of the main bar. A pair of extension rods are integrally projected, and at the upper ends of these extension rods, there are provided a pair of gripping bars extending in a direction approaching each other and substantially parallel to the main bar. The cross section of the fitting portion between the main bar and the weight is a non-circular shape, and a straight portion is formed at least at a part below the weight.

  By adopting such a configuration, when the barbell is lowered to the floor surface, a linear portion is formed in a part below the weight, so that the weight is always constant with respect to the floor surface. Still in posture.

  Further, the main bar fitted and mounted on the weight held in such a constant stationary state has a non-circular shape in the cross-sectional shape of the fitting portion. The main bar is held in a fixed posture with respect to the weight.

  Therefore, the pair of extension rods provided on the main bar is also held in an almost upright state from the main bar held in a fixed posture, and provided at the upper ends of these extension rods. The gripping bars are held in a substantially parallel state above the main bar, and these gripping bars are positioned at a distance from each other.

  The barbell is used by arranging a bench on which a trainee lies, above the main bar between the pair of extension rods so as to be spaced from and intersect the main bar.

  As described above, when the bench is arranged, the extension rods are positioned over both sides of the bench, and the gripping bars provided on these extension rods are positioned above the respective sides of the bench. In addition, a space that opens above the bench is formed between the gripping bars.

During training, the trainee lies on his back on the bench through the space between the pair of gripping bars.
Then, in the lying state, the gripping bars are opposed to each other above the arms of the trainee, and the chest upper portion of the trainer is opened by the space between the gripping bars. .

  Therefore, the trainer can grip the pair of grip bars by extending both arms upward, and raise and lower the grip bars to raise and lower the barbells for muscle training.

  Here, by adjusting the length of the extension rod and adjusting the distance between the bench and the main bar, the above-described lifting and lowering of the barbell is not hindered, and smooth training is possible. is there.

  Moreover, since the upper part of the chest of the trainer is open during the above-described raising and lowering operation of the barbell, the contact between the trainer's chest and the barbell can be avoided.

  The straight portion of the weight can be formed by making the weight into a polygonal shape, or by forming the weight in a disk shape and cutting out a part of the weight. can do.

  In order to make the cross-sectional shape of the fitting portion between the bar and the weight non-circular, the cross-sectional shape of the fitting portion can be a polygonal shape or an elliptical shape.

  On the other hand, the above-mentioned barbell is spaced from the main bar between the pair of extension rods, and a bench is arranged along the direction intersecting the main bar, and the chest of the trainer lying on the bench is The bench press apparatus can be configured to face the space between the pair of gripping bars.

  On the other hand, this bench press apparatus can be provided for ensuring posture stability during training of the trainer by installing a footrest on which each foot of the trainer is placed below both sides of the bench. it can.

  According to the barbell of the present invention and the bench press device using the barbell, the trainer can smoothly get on and off the bench, and can avoid contact with the chest of the trainer during training as much as possible. .

It is a perspective view which shows the barbell and bench press apparatus concerning the 1st Embodiment of this invention. It is a disassembled perspective view of the barbell concerning the 1st Embodiment of the present invention. It is a perspective view which shows the bench press apparatus which shows the 2nd Embodiment of this invention. It is a perspective view which shows the bench press apparatus which shows the 3rd Embodiment of this invention. It is a front view which shows the modification of the weight of this invention. It is a front view which shows the modification of the weight of this invention. It is a perspective view which shows the bench press apparatus which shows the 4th Embodiment of this invention.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
In FIG. 1, reference numeral 1 denotes a barbell according to the present embodiment. The barbell 1 includes a main bar 2 having mounting portions 2 a to which weights W are fitted and mounted at both ends. A pair of extension rods 3 are integrally projected on the inner side of the pair of mounting portions 2a toward the upper side of the main bar 2, and the upper end portions of these extension rods 3 approach each other. And a pair of gripping bars 4 that are substantially parallel to the main bar 2 are provided, and the cross-section of the fitting portion between the main bar 2 and the weight W is a non-circular shape. In addition, a linear portion F is formed at least at a part below the weight W.

  More specifically, the cross section of the main bar 2 is formed in a rectangular shape over its entire length, and the outer shape of the weight W fitted and mounted on the mounting portion 2a of the main bar 2 is formed in a rectangular shape. The lower end surface is the straight portion F.

  By bringing the straight portion F into contact with the floor surface, it is possible to prevent the weight W from rolling when the weight W is placed on the floor surface.

  As shown in FIG. 2, a through hole D into which the mounting portion 2a of the main bar 2 is fitted is formed at the center of the weight W, and the internal shape of the through hole D is the main bar. 2 is formed in a rectangular shape substantially equal to the outer shape of 2.

  As a result, the relative rotation of the weight W and the main bar 2 around the axis of the main bar 2 is restricted in a state where the weight W is fitted to the main bar 2. .

In the present embodiment, two sets of three weights W are prepared, and each set is mounted on each mounting portion 2a of the main bar 2.
In addition, the number of the weights W is arbitrarily set based on a training person's training type, skill level, and the like.

Further, through holes 5 are formed through the mounting portion 2a in the vertical direction at the tip of the mounting portion 2a at each end of the main bar 2, and the mounting portions are provided in the through holes 5, respectively. A locking pin 6 that engages with a side portion of the weight W mounted on 2a and prevents the weight W from being detached is mounted.
In addition, although the said through-hole 5 and the said locking pin 6 were shown only with respect to one said mounting part 2a in the figure, it is similarly provided in the other said mounting part 2a.
Further, in order to prevent the weight W from coming off, instead of using the locking pin 6 as described above, a screw is formed at the tip of the mounting portion 2a of the main bar 2, and a locking bolt is formed on the screw. Further, the weight W can be prevented from coming off only by friction between the weight W and the mounting portion 2a of the main bar 2 without using the locking pin 6. It can also be.

  When the weight W is mounted on the main bar 2 and the barbell 1 is placed on the floor surface so that the straight portion F of the weight W is in contact with the floor surface, the weight W is supported. As a body, the extension rod 3 is held in a substantially vertical state via the main bar 2.

  As shown in FIGS. 1 and 2, the pair of extension rods 3 are formed in a rectangular shape in cross section similar to the main bar 2, and the cylindrical gripping bar 4 is formed at the upper end portion thereof. Each is provided integrally.

  Each gripping bar 4 is disposed so as to be parallel to the main bar 2 and is integrally attached to the upper end of each extension rod 3 at an intermediate portion thereof, on the inner side and the outer side of the extension rod 3. It is made to protrude.

  And the site | part located inside the said extension rod 3 of each said holding | grip bar 4 is made into the part gripped by the trainer, and the site | part located outside is, for example in the case of the movement of the said barbell 1 It is a part that is held by assistants.

  Further, a predetermined interval is provided between the inner end portions of the gripping bar 4, thereby forming a space S that opens the top of the main bar 2.

  On the other hand, the extension rod 3 is set to a length that holds the main bar 2 and the gripping bar 4 at an appropriate interval in consideration of the stroke of the raising / lowering operation of the barbell 1 by a trainee.

  On the other hand, reference numeral 10 in FIG. 1 denotes a bench press apparatus using the above-described barbell 1, which is spaced from the main bar 2 between the pair of extension rods 3 and intersects the main bar 2. Are provided along the bench 11.

  That is, both ends of the bench 11 are supported by a pair of support leg units 12 and 13 so as to have a predetermined height from the floor surface, and the main bar 2 and the extension rods 3 of the barbell 1 The bench press device 10 is configured together with the barbell 1 so as to traverse the space surrounded by the barbell 1.

  The support leg unit 13 provided on the head side of the bench 11 includes a pair of first support legs 13 a that extend downward from the vicinity of both sides of the bench 11 and are brought into contact with the floor surface, and the bench 11. And a pair of second support legs 13b positioned on the foot side of the bench 11 relative to the first support legs 13a, and the first support legs 13a and 13a. And a connecting rod 13c for fixing the second support leg 13b to the bench 11.

  The connecting rod 13c is formed in a substantially U shape in plan view, and the bent portions at both ends are parallel to the bench 11, and a predetermined interval is provided between the connecting rod 13c and the bench 11. The second support legs 13b are fixed to the ends of these bent portions, respectively.

  A receiving member 16 opened upward is integrally attached to the upper end of each of the second support legs 13b, and the outer end of the gripping bar 4 is placed, whereby the barbell 1 Is accommodated in the bench press apparatus 10.

  Here, the height of the bench 11 and the length of the extension rod 3 are arbitrarily set, and the stroke of the presser's press operation is sufficiently secured, and the barbell 1 is positioned at the lowest point. In this state, the length is set so that the gripping bar 4 is positioned on the side of the chest of the trainer.

  In the bench press apparatus 10 configured as described above, the barbell 1 is mounted by placing both the gripping bars 4 on the pair of receiving members 16 or the weight W of the barbell 1. By bringing the barbell 1 into contact with the floor surface, the barbell 1 is brought into a housed state.

  In the latter stowed state, the main bar 2 of the barbell 1 is positioned below the bench 11 at a predetermined interval, and both the main bar 2 are above the both sides of the bench 11. The gripping bars 4 supported by the extension rod 3 are positioned.

  The trainer who starts the training first lies down on the bench 11 while lowering the upper body backward, for example, after sitting down on the substantially middle part of the bench 11.

  Here, the upper body of the trainer is easily moved to the bench 11 through the space S because the space S is formed between the gripping bars 4.

  In this way, when the trainer lies on the bench 11 on his / her back, the gripping bars 4 positioned above both sides of the bench 11 are opposed to the both sides of the trainer.

  From this, the trainee can hold both hands upwards and can grasp the grip bar 4 by each hand, and lift the barbell 1 by pushing the grip bar 4 upward, and the grip bar The barbell 1 is lowered by lowering 4 downward.

  Here, since the space | interval is provided between the main bar 2 of this barbell 1 and the said bench 11 in the state before raising the said barbell 1, the raising / lowering operation | movement of the barbell 1 by the trainer mentioned above smoothly Permissible.

On the other hand, during the above-described lifting and lowering operation of the barbell 1, the space portion S formed between the grip bars 4 is always opposed to the chest of the trainer, and the barbell 1 is lowered to the lowest end. In the state, the weight W abuts against the floor surface, the weight of the barbell 1 is supported by the floor surface, and does not act on the body of the trainer.
Therefore, the trainer is freed from anxiety about the chest being pressed, and even an untrained trainer can perform training with peace of mind.

When the trainee finishes training and leaves the bench press apparatus 10, an operation of standing up after raising the upper body from the bench 11 is performed.
In such a raising operation of the upper body, the operation can be smoothly performed by the presence of the space S.
At this time, the rising operation can be easily performed by using the gripping bar 4 as a support.

  Note that the shapes, dimensions, and the like of the constituent members shown in the above embodiment are merely examples, and various changes can be made based on design requirements and the like.

For example, as shown in FIG. 3, a footrest 14 on which each foot of the trainer can be placed can be provided below both sides of the bench.
By adopting such a configuration, when a trainee puts on the footrest 14, the support during the raising and lowering operation of the barbell 1 is strengthened to suppress posture change and enable stable training. it can.

Moreover, in the said embodiment, although the example which supports the said bench 11 by a pair of support leg unit 12 * 13 was shown, Furthermore, in the substantially intermediate part of the length direction of the said bench 11, FIG.3 and FIG.4 is shown. As shown in the figure, a third support leg unit 15 may be provided.
By adopting such a configuration, the support structure of the bench 11 can be strengthened to increase the stability thereof, and the main bar 2 positioned below the bench 11 can be brought into contact with the bench 11. Thus, unnecessary shake of the main bar 2 can be prevented.

  Further, in the above embodiment, the example in which the weight W is formed in a rectangular shape in order to form the straight portion F has been shown, but instead of this, as shown in FIG. It is also possible to form the straight line portion F by forming a part thereof into a shape cut out in a straight line.

  In order to prevent relative rotation between the main bar 2 and the weight W, an example in which the cross-sectional shape of these fitting portions is rectangular has been shown, but instead, it is shown in FIG. 5 and FIG. As described above, the cross-sectional shape of the fitting portion (through hole D) may be an elliptical shape, and the shape may be a non-circular shape.

  On the other hand, in each of the above embodiments, a pair of receiving members 16 opened upward are provided on the upper portion of the support leg unit 13, and the portions protruding outside the gripping bar 4 are hung on these receiving members 16. Thus, the barbell 1 is held in a lifted state. Instead, as shown in FIG. 7, a pair of receiving blocks 17 are installed in the vicinity of the support leg unit 13, and You may make it hold | maintain the said barbell 1 by mounting the said barbell 1 on the said both receiving blocks 17 using the linear part F of the weight W. FIG.

DESCRIPTION OF SYMBOLS 1 Barbell 2 Main bar 2a Mounting part 3 Extension rod 4 Grasp bar 5 Through-hole 6 Locking pin 10 Bench press apparatus 11 Bench 12 Support leg unit 13 Support leg unit 13a 1st support leg 13b 2nd support leg 13c Connecting rod 14 Foot stand 15 Third support leg unit 16 Receiving member 17 Receiving block D Through hole F Straight line portion S Space portion W Weight

Claims (7)

  A main bar is provided with mounting parts to which weights are fitted and mounted at both ends, and a pair of extension rods are integrally formed above the pair of mounting parts on the inner side of the main bar. A pair of gripping bars that extend in the direction approaching each other and are substantially parallel to the main bar are provided at the upper ends of these extension rods. The barbell is characterized in that a cross-section of a fitting portion with the weight is a non-circular shape, and a straight portion is formed at least at a part below the weight.   The barbell according to claim 1, wherein the weight is formed in a polygonal shape, and one side thereof is the straight portion.   The barbell according to claim 1, wherein the weight is formed in a disc shape, and a part of the weight is notched to form the straight portion.   The barbell according to any one of claims 1 to 3, wherein a cross-sectional shape of a fitting portion between the bar and the weight is formed in a polygonal shape.   The barbell according to any one of claims 1 to 3, wherein a cross-sectional shape of a fitting portion between the bar and the weight is formed in an elliptical shape.   It is a bench press apparatus using the barbell in any one of Claims 1 thru | or 5, Comprising: The said main bar is spaced apart between the said pair of extension rods, In the direction which cross | intersects the said main bar A bench press apparatus comprising: a bench disposed along the chest, and a chest of a trainer lying on the bench facing the space between the pair of gripping bars. The bench press apparatus according to claim 6, wherein a footrest on which each foot of the trainer is placed is provided below both sides of the bench.

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