WO2009145421A2 - Weight control mechanism for weight machine - Google Patents

Abstract

The present invention concerns a weight control mechanism for a weight machine. According to the present invention, the weight control mechanism for a weight machine comprises: a frame including a support with a base, a pulley coupled to the top of the support, and a pair of guides which are vertically installed on the base and spaced at a predetermined distance from the support; a plurality of weight stacks wherein a pair of guide holes are formed and a weight selection hole is formed therebetween so that theweight stacks can be stacked; a weight rod wherein at least one pin-holding unit protrudes therefrom in order to pass through the weight selection hole and be coupled therein and the weight stack positioned on the top of the pin holding unit is supported and lifted; a weight control unit which controls the weight by rotating the weight rod and selecting whether or not the pin-holding unit holds the weight stack; and an external force transmitting unit including a cable which is connected to the top of the weight rod and thus connected to the pulley, and a handle which is connected to one end of the cable to receive external force. Therefore, the weight of the weight stack is easily controlled, thereby improving convenience, and the weight machine can be made lighter and smaller

Description

Weight control device of weight exercise equipment

The present invention relates to a weight adjusting apparatus of a weight exercise apparatus, and more particularly, to a weight adjusting apparatus of a weight exercise apparatus that can more easily change the weight of the weight stack to adjust according to the user's ability.

Increasing standard of living is increasing interest in health, and many people are using various weight training equipment to build strength. A variety of weight training equipment is provided, and the hands and feet are used to exercise the upper and lower body.

Hereinafter, a general weight training apparatus will be briefly described.

1 is an exploded perspective view showing a weight selection pin fastening structure for a weight training apparatus according to Korean Utility Model Registration No. 20-0379522, which is a prior art, and FIG. 2 is a plan view showing a weight selecting pin fastening structure of FIG.

1 and 2, the weight selection pin fastening structure for the weight training apparatus according to the prior art, the weight stack on the outer circumferential surface of the weight rod 10 penetrating up and down the multi-stacked weight stack (1) Pin fastening portion 11 corresponding to the fastening hole (1a) of the (1) is formed in multiple stages, the weight selection pin 20 passes through the fastening hole (1a) of the weight stack (1) It is connected to the pin engaging portion 11 in the form of tongs. And the pair of tong pieces 22, 23, when the handle (22a, 22b) is pressed, the tip end is opened and fitted to the pin catching portion 11 of the weight rod 10, the hand from the handle 24 was pressed When put the restoring to the original state to hold the weight rod 10 in the form of tongs as a technical gist.

The conventional weight variable weight exercise apparatus having such a structure uses a weight set according to a user who uses the apparatus. The fastening hole 1a and the weight provided on the side of the weight stack 1 to set the weight are used. The weight selection pin 20 is inserted into the pin catching portion 11 of the weight rod 10 penetrating the stack 1 to select the required weight.

However, in order to change the weight of the weight stack 1, it is very inconvenient and difficult to find a small hole in the fastening hole 1a of the weight stack 1 to be selected and reinsert the weight selection pin 20. .

In addition, since the weight adjusting device portion must be an open structure, there is a problem in that there are many restrictions in design when the cover is mounted on the weight stack 1 portion.

Therefore, the problem to be solved by the present invention is to provide a weight adjusting apparatus of the weight exercise device that is easy to adjust the weight of the weight stack.

Another object of the present invention is to provide a weight control apparatus for a weight exercise apparatus that can simplify the structure of the weight adjusting apparatus and can achieve a wide spread by lowering the price of expensive weight exercise equipment.

The problem to be solved of the present invention is not limited to the above-mentioned problem, another task that is not mentioned will be clearly understood by those skilled in the art from the following description.

Weight adjustment apparatus of the weight exercise apparatus according to an embodiment of the present invention for achieving the above object, the support having a base, the pulley coupled to the upper portion of the support, and the support to the upper with respect to the base at a predetermined interval Frame comprising a pair of guides erected, a plurality of guide holes are formed to be stacked in multiple stages on the guide, a plurality of weight stacks formed with weight selection holes between the pair of guide holes, the weight selection holes At least one pin engaging portion protruding from the weight rod to support and lift the weight stack positioned on the upper portion of the pin locking portion, and to rotate the weight rod to engage the pin locking portion and the weight stack. Weight control unit for adjusting the weight by selecting whether or not, Hitting portion includes an external force transfer, which includes a handle receiving grant external force is coupled to the end of the cable, the cable connected to a pulley coupled to the upper rod weight.

The weight stack includes a bolt hole penetrating through both sides of the weight selection hole, and a bolt coupled to the bolt hole to protrude to one side, and spaced apart from the upper and lower weight stacks by a protruding length of the bolt. The pin may be formed to rotate by forming a space.

The weight selection hole may be formed in a shape in which the at least one pin engaging portion is in contact with each other.

The weight adjusting unit includes a first gear rotatably coupled with the weight rod, a second gear meshed with the first gear, an adjustment shaft installed through the frame and rotatably coupled with the second gear, and the adjustment It may include a handle that is installed at the rear end of the shaft.

The first gear and the second gear may be made of bevel gears.

The weight rod may have an outer surface of a polygonal shape, and the first gear may have a polygonal hole coupled to an outer surface of the weight rod.

The weight adjusting unit may further include a latch installed at one side of the frame and the other side of the weight adjusting member to elastically engage the first gear to restrain the rotation of the first gear.

As described above, in the weight adjusting apparatus of the weight exercise apparatus according to the present invention, the weight stack of the weight stack can be easily adjusted, thereby increasing convenience in use.

In addition, the weight adjusting apparatus of the weight exercise apparatus according to the present invention can significantly reduce the weight of the exercise apparatus by minimizing the volume and the load by miniaturization, and can simplify the structure thereof, thereby lowering the price of the expensive exercise apparatus and reducing the weight. It has the effect of contributing to the spread.

1 is an exploded perspective view showing a weight selection pin fastening structure for a weight training apparatus according to the prior art;

2 is a plan view showing the weight selection pin fastening structure of FIG.

3 is a perspective view of the exercise device is installed weight control device of the weight exercise device according to an embodiment of the present invention,

Figure 4 is an exploded perspective view of a part of the weight adjusting device of the weight exercise apparatus according to the present invention,

5 is a plan view showing a state in which the weight stack according to the invention coupled to the guide,

6 is a plan view showing a state of use of the weight stack and weight rod according to the present invention,

7 is a plan view showing a weight adjusting unit according to the present invention;

8 is a view showing a state that there is no engagement of the weight rod and the weight stack according to the present invention, and

9 is a view showing a coupled state of the weight rod and the weight stack according to the present invention.

* Explanation of symbols on main parts of the drawings *

10: frame 12: base

14: support 16: pulley

18: Guide 20: Weight Stack

22: guide ball 24: weight selector

26: bolt hole 28: bolt

30: weight rod 32: pin engaging portion

40: weight adjusting portion 42: first gear

42a: polygonal hole 42b: gear

44: second gear 46: adjustment shaft

48: handle 50: latch

50a: slope 60: external force transmission portion

62: cable 64: handle

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention belongs. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the weight control device of the weight exercise apparatus according to an embodiment of the present invention to be easily carried out by those of ordinary skill in the art.

Figure 3 is a perspective view of the exercise device is installed weight adjustment apparatus of the weight exercise apparatus according to an embodiment of the present invention, Figure 4 is a partial exploded perspective view of the weight control apparatus of the weight exercise apparatus according to the invention, Figure 5 is the present invention 6 is a plan view illustrating a state in which the weight stack is coupled to the guide, FIG. 6 is a plan view illustrating a use state of the weight stack and the weight rod according to the present invention, and FIG. 7 is a plan view of the weight adjusting unit according to the present invention, respectively.

3 to 7, the weight adjusting apparatus of the weight exercise apparatus according to the present invention, the frame 10, the weight stack 20, the weight rod 30, the weight adjusting unit 40, and the external force It is configured to include a delivery unit (60).

First, the frame 10 will be described.

The frame 10 as used herein refers to a structure that is in a floating relationship with each other such as a constituent member of a building, a bottom surface, etc. The frame 10 is a place where components of the present invention to be described later are mounted, an opaque material The outer surface can be closed so that the inside is not exposed by.

Referring to FIG. 3, the frame 10 has a support 14 having a base 12, a pulley 16 coupled to an upper portion of the support 14, and a predetermined distance from the support 14. It may include a pair of guides 18 erected perpendicular to the base 12. The guide 18 is equipped with a plurality of weight stacks 20 to be described later. Here, the weight stacks 20 are mounted on the base 12 to which the shock absorbing opening 12a, such as dustproof rubber, is attached, so as to attenuate the noise and vibration generated when the weight stack 20 falls. It can reduce the friction of the liver and extend the mechanical life.

Next, the weight stack 20 will be described.

Referring to FIG. 4, the weight stack 20 has a guide hole 22 and a weight selection hole 24 formed of a metal body formed of a circular or rectangular parallelepiped having a predetermined weight.

The guide hole 22 may be formed in a pair and stacked in multiple stages through the guide 18.

The weight selection hole 24 is formed between the guide holes 22, and is particularly formed at the center of gravity of the entire weight stack 20 in the middle of the surface forming the front of the weight stack 20. Can be. In addition, the weight selection hole 24 has the same shape as the pin catching portion 32 or at least the pin catching portion 32 so that the pin catching portion 32 of the weight rod 30 to be described later can pass. One may have a penetrating shape.

The shape of the weight selection hole 24 of the weight stack 20 configured as described above will be described with reference to FIG. 5.

Referring to FIG. 5, the weight stack 20 may include three first weight stacks 20a, second weight stacks 20b, and third weight stacks 20c.

At this time, the shape of the weight selection hole 24a of the first weight stack 20a may have the same size or be slightly larger so that the pin catching portion 32 of the weight rod 30 to be described later may be penetrated. Can be.

The weight selection hole 24b of the second weight stack 20b has a shape in which two pin catching portions 32 of the weight rod 30 to be described below are connected to each other and penetrate through the weight selection hole 24b. As a reference, it may be formed to penetrate wider in a clockwise or counterclockwise direction by about 30 °.

The weight selection hole 24c of the third weight stack 20c has a shape in which three pin catching portions 32 of the weight rod 30 to be described below are connected to each other to penetrate the weight selection hole 24a. It may be formed to penetrate wider in a clockwise or counterclockwise direction by about 60 ° as a reference.

Therefore, when the angle of the weight rod 30 is rotated by 30 ° by the weight adjusting unit 60 to be described later, the pin catching portion 32 is also rotated by a predetermined angle so that the pin catching portion 32 is such a weight. It is determined whether or not it can pass through the selection holes 24a, 24b, 24c. Herein, the angle difference of 30 ° is shown as the best embodiment, and the present invention is not limited thereto. However, the object of the present invention is to provide a plurality of weight selection holes 24a, 24b, and 24c by different angle differences. same.

On the other hand, the bolt hole 26 may be further formed in both the upper and lower sides of the weight selection hole 24. In addition, the bolt hole 26 is coupled to the bolt 28 protruding to one side is formed long spaced apart between the weight stack 20 of the upper and lower sides by the protruding length of the bolt 28, The pin catching portion 32 of the weight rod 30 to be described later in this space is to be smoothly rotated.

Next, the weight rod 30 is demonstrated.

The weight rod 30 is formed on the outer circumferential surface consisting of a rectangular parallelepiped or a polyhedron at least one pin engaging portion 32 penetrating through the weight selection hole 24 of the weight stack 20 is formed so that the pin engaging portion 32 Supporting the bottom surface of the weight stack 20 located at the top of the serves to lift together.

Here, only one pin catching part 32 may be provided. More preferably, the pin catching part 32 may be provided at the same or more than the number of the weight stacks 20. 20) are installed so as to fall up and down as spaced space between them.

An embodiment of the pin catching part 32 configured as described above will be described with reference to FIG. 6.

Referring to FIG. 6, like the weight stacks 20a, 20b, and 20c, three pin catching portions 32 protruding from the outer surface of the weight rod 30 may be formed.

Accordingly, as the weight rod 30 is rotated, the pin catching portions 32a, 32b, and 32c may form respective weight selection holes 24a, 24b, and 24c formed in the weight stacks 20a, 20b, and 20c. The number and weight of the weight stacks 20 are determined according to whether they can pass or not. That is, when the user selects the desired weight by the weight adjusting unit 40 to be described later, the pin catching portion 32 of the weight rod 30 is rotated so that the weight selection hole 24 is formed on the bottom surface of the weight stack 20. ) And the weight stacks 20, which are offset from each other and positioned above the pin catching part 32, are simultaneously raised and lowered.

In addition, the pin catching portion 32 lifts the weight stacks 20 of the selected weight in a state of being interviewed with the bottom surface of the weight stack 20. When lifting and lowering them, adjacent weight stacks 20 Since the space spaced apart by the bolt 28 is formed in the liver, the shock is not transmitted to the pin catching portion 32.

Next, the weight adjusting unit 40 will be described.

As shown in FIGS. 4 and 7, the weight adjusting part 40 includes a first gear 42 rotatably coupled with the weight rod 30 and a second gear meshed with the first gear 42. A gear 44, an adjustment shaft 46 installed through the frame 10 and rotatably coupled with the second gear 44, and a handle 48 installed at the rear end of the adjustment shaft 46. It may include.

The first gear 42 is installed in the weight rod 30, the center portion of the first gear 42 is a polygonal hole (42a) in the perforated weight bar 30 and the outer surface is formed in a polygonal shape and Can be rotated together. In addition, the second gear 44 is vertically installed and engaged with the first gear 42. As shown in FIG. 7, the first gear 42 and the second gear 44 may be formed of bevel gears. On the other hand, in the present embodiment, the first gear 42 and the second gear 44 has disclosed the weight adjusting portion 40 by the bevel gear, but may be replaced by other gear means such as worm gear.

And, the second gear 44 is connected to the adjustment shaft 46 installed through the frame 10, the end of the adjustment shaft 46 for the user to adjust the load of the weight stack 20 The handle 48 is formed. The handle 48 is formed by the knurled irregularities on its surface can prevent the user from sliding.

The weight adjusting unit 40 configured as described above allows the weight rod 30 to be rotated to select whether the pin catching portion 32 and the weight stack 20 are caught.

On the other hand, the weight adjusting device of the weight exercise apparatus according to another preferred embodiment of the present invention may further include a latch (50) caught by the first gear 42 to restrain its rotation.

The latch 50 is formed in a substantially "U" shape, one end of which is fixed to the frame 10 and the other end of the latch 50 is elastically engaged to the first gear 42. At this time, the gear teeth 42b of the bevel gear which is the first gear 42 have a shape for smooth rotation and reverse rotation. That is, both side walls of the gear 42b in contact with the inclined surface 50a of the latch 50 have a gentle round shape. Accordingly, when the bevel gear, which is the first gear 42, rotates, the inclined surface 50a of the latch 50 and the inner side walls having a smooth round shape of the gear 42b come into contact with each other to smoothly rotate and re-weight Even if the first and second gears 42 and 44 are rotated in reverse by rotating the handle 48 to lower, the inner side walls having a smooth round shape contact and smoothly rotate the reverse.

Therefore, the rotation angle at which the first gear 42 and the second gear 44 are engaged by one rotation by the rotation of the handle 48 is rotated so that the pin catching portion 32 of the weight rod 30 is next pinned. It is set to come to the position of the part 32.

Next, the external force transmission unit 60 will be described.

The external force transmission unit 60 is connected to the pulley 16 to smoothly move when lifting or lowering the weight stack 20 by a force applied from a user, one end of the weight rod 30. The cable 62 is connected to the upper end, a wire, a belt or the like is provided, and the other end is provided with a handle 64 to allow the muscle exercise.

Hereinafter, the operation of the weight adjusting device of the weight exercise apparatus according to the present invention configured as described above.

8 is a view showing a state where there is no engagement of the weight rod and the weight stack according to the present invention, Figure 9 is a view showing a state of engagement of the weight rod and the weight stack according to the present invention.

First, the weight of the weight rod 30 is set to 5kg, and the weight of one weight stack 20 is set to 5kg.

As shown in FIG. 8, the weight stacks 20 protruding from the weight rods 30 are installed to pass through all of the weight selection holes 24 of the weight stack 20.

In this state, when the user pulls the handle 64 of the external force transmission unit 60, the weight is selected by 5 kg, which is the weight of the weight rod 30 connected to the cable 62, and the exercise is performed.

Thereafter, in order to change the weight of the weight, the weight rod 30 may be rotated. As shown in FIGS. 7 and 9, when the handle 48 of the weight adjusting part 40 is rotated 90 ° in one direction, An adjustment shaft 46 connected with the handle 48 is rotated together, and the first gear engaged with it by the axis of the bevel gear, which is the second gear 44 rotatably coupled to the adjustment shaft 46 ( The bevel gear 42, which is 42, is rotated 90 degrees, and the bevel gear, which is the first gear 42, is also rotated while pushing the latch 50 elastically.

When the bevel gear that is the first gear 42 is rotated by 90 °, the weight bar 30 coupled to the first gear 42 by the bevel gear that cannot be rotated relative to the bevel gear is rotated by 90 ° while the pin catching portion 32 is 90 degrees. ° rotates, and when the handle 64 connected to the weight rod 30 and the cable 62 is pulled, the three weight stacks 20 of the upper portion which are offset from the pin catching portion 32 of the weight rod 30 They will rise at the same time, while going down.

At this time, the user lifts the weight of the weight bar 30, 5kg and 15kg, the weight of the three weight stack 20 together, the weight of 20kg. As described above, the weight exercise apparatus having various weights can be manufactured by the combination of the basic weight of the weight stack 20 and the number of the weight stacks 20.

Weight control apparatus of the weight exercise apparatus according to the present invention having such a structure is a weight rod 30 mounted in the center of the weight stack 20 is vertically through the weight selection hole 24 formed in the weight stack 20 As it is elevated, the weight of the weight can be easily adjusted by rotating the pin catching portion 32 of the weight rod 30 so as to be in contact with the bottom surface of the weight stack 20 so as to be coupled to the weight stack 20 of the desired weight.

Therefore, the user only needs to turn the handle 48 of the weight adjusting unit 40, so that the weight of the desired weight stack 20 is adjusted so that the weight selection pin must be found in the narrow hole of the weight stack 20 as in the prior art. Discomfort can be eliminated.

Although a preferred embodiment for illustrating the principle of the present invention has been described in detail above, the scope of the present invention is not limited to this, but various modifications of those skilled in the art using the basic concept of the present invention defined in the following claims and Modified forms are also within the scope of the present invention.

The weight adjusting device of the weight exercise apparatus according to the present invention can simplify the structure, thereby lowering the price of the expensive weight exercise apparatus and affecting the wide spread of the weight exercise apparatus.

Claims (7)

A frame comprising a support having a base, a pulley coupled to an upper portion of the support, and a pair of guides erected upwardly with respect to the base at a predetermined distance from the support, A plurality of guide stacks are formed in the guide to be laminated in multiple stages, and a plurality of weight stacks having weight selection holes formed between the pair of guide holes, At least one pin engaging portion protruding from the weight selection hole, the weight rod supporting and lifting the weight stack positioned above the pin engaging portion; A weight adjusting unit which rotates the weight rod and adjusts the weight by selecting whether the pin catches the hook and the weight stack; The external force transmission unit includes a cable coupled to the upper end of the weight rod and connected to the pulley, and coupled to an end of the cable to receive an external force. Weight control device of the weight exercise apparatus comprising. In claim 1, The weight stack, A bolt hole formed through both sides of the weight selection hole, and It further comprises a bolt coupled to the bolt hole and protrudes to one side, Weight adjustment device of the weight exercise mechanism is formed so that the pin engaging portion is rotated by forming a predetermined spaced space between the upper and lower weight stack by the protruding length of the bolt. The method of claim 1 or 2, The weight selection hole, Weight control device of the weight exercise mechanism is formed in a shape in which the at least one pin engaging portion is in contact with each other. In claim 1, The weight control unit, A first gear rotatably coupled with the weight rod, A second gear meshed with the first gear, An adjustment shaft installed through the frame and rotatably coupled with the second gear, and The handle is installed on the rear end of the adjustment shaft Weight control device of the weight exercise apparatus comprising. In claim 4, The first gear and the second gear weight control device of the weight exercise mechanism consisting of a bevel gear. In claim 4, The weight rod is a weight control device of the weight exercise device is formed in a polygonal shape of the outer surface, the first gear is formed with a polygonal hole coupled to the outer surface of the weight rod. In any one of claims 4 to 6, The weight control unit, One side is installed in the frame and the other side is latched to restrain the rotation of the first gear by being elastically locked to each of the first gear Weight control device of the weight exercise apparatus further comprising.

Images