KR101960278B1 - Sports or practice training device for hand swing implementation - Google Patents

Abstract

(Figure 6) comprising a slidable mass having an empty body extending in the device and defining an internal volume and a passage extending along the direction of movement, A slidable mass comprising one or more passages for allowing air to flow is received in the sleeve housing and / or the bat end. The slidable mass is contained within the inner volume or the added sleeve and contacts the inner circumference of the hollow body or sleeve. When the user swings the device, the inertial moment of the device changes to improve the swing structure and / or timing.

Description

Sports or practice training device for hand swing implementation

This application is a continuation-in-part of US Non-Provisional Patent Application No. 14 / 143,804, filed on December 30, 2013, now U.S. Patent No. 9,095,739, entitled "Training Bat Quot; Continuation-in-Part No. 14 / 329,590, filed on August 3, 2015, entitled " Sports or Exercise Training Device for Hand &Quot; filed on even date herewith, the entire contents of which are hereby incorporated by reference in its entirety.

Field of the Invention The present invention relates generally to training devices for athletic, athletic, and more particularly to training implementations such as swing timing, power and / or mechanics of a baseball / softball bat, racket, golf club,

Training bats, racquets, golf clubs, etc., having a cylindrical or spherically suspended weight are well known. For example, many baseball training bats are associated with "donuts" or other weights used primarily to build strength or to practice and complete the batter's complete swing technique. Such structures include detachable or removable weights in the bat surface or bat as well as bats with uncommon weight distributions.

For example, U.S. Patent No. 514,420 discloses a bat provided with an impact damper. The impact device includes an elongated hollow passageway formed in the striking end of the bat, wherein a plurality of weighted spherical balls are free to move. The closure plug is threadably received at the striking end of the bat that closes the passageway and holds the weighted ball in the passageway. In another embodiment, the long cylindrical sliding weight replaces the spherical ball. The intended function is provided by the change in the batt characteristics as the centrifugal force pushes the weight members outwardly from the end of the passage spaced apart from the striking end.

Another example includes U.S. Patent No. 3,578,801, which describes a practice bat in which a longitudinal rod extending in a hollow interior for baseball practice is supported. The chamber extends along a portion of the elongated rod and supports a slidable weight thereon. While the bat is swinging, the centrifugal force moves the weight outward toward the striking end of the bat.

While the above described devices are useful for their intended purposes, there remains a continuing need in the art for constantly improved practice and training devices.

BACKGROUND OF THE INVENTION [0002] This disclosure relates generally to exercise devices such as bats, racquets, or clubs having a hollow body defining an interior volume. The inner volume includes a slidable mass having a passage extending through the mass that is slidable in the direction of movement. In addition, the slidable mass is contained within the inner volume of the device, and may be in contact with the inner periphery of the device or within the sleeve within the device, so that it can slidably contact along the inner circumference during a swing operation.

Embodiments can thus include passages in masses having different diameters in each end or passageway, thereby increasing the rate of change in inertia (i.e., the moment of inertia) And a control mechanism for dynamic MOI).

The moment of inertia changes as the mass is located farther away from the center of rotation. The following relationship describes this effect:

I = moment of inertia = inertia moment of bat (I bat) + value of the mass of the slider multiplied by the square of the distance from the center of rotation (r ² ). Thus, I total = I bat + slider mass xr ² , where r increases.

Various other objects and advantages of the present invention will become apparent from the following description of the specification. Therefore, in order to achieve the above-mentioned objects, the present invention includes the features fully described in the detailed description of the preferred embodiments and particularly pointed out in the claims. However, such description only discloses some of the various ways in which the present invention may be practiced.

1 is a front perspective view of a slidable mass embodiment for a bat of the present invention.
Figure 2 is a rear perspective view of a slidable mass embodiment for the bat of the present invention shown in Figure 1;
Figure 3 is a front view of the slidable mass embodiment shown in Figure 1;
Figure 4 shows a rear view of the slidable mass embodiment shown in Figure 2;
5 is a side view of a bat embodiment of the present invention.
FIG. 6 shows a cross-sectional view taken along line AA of the embodiment shown in FIG.
Figure 7 shows an enlarged cross-sectional view of the slidable mass shown in Figure 6 and taken along the area defined by circle B;
Figure 8 shows another embodiment of a slidable mass.
Figure 9 shows a cross-sectional view of the bat using the accessory sleeve and the slidable mass of Figure 8;
Figure 10 shows a bat implementation.
Fig. 11 shows the AA cross section of Fig.
Figure 12 shows the handle and neck portion of the training device.
13 shows the AA cross section of Fig.
Fig. 14 shows the detail view (B) of Fig.
Fig. 15 shows a detail view (C) of Fig.
Figure 16 shows a slidable mass.
Figure 17 shows an embodiment of another slidable mass.

Referring to Figs. 1 to 4 and 6, there is shown a slidable mass 2 having a passage 4 extending through the mass along the direction of movement M. The slidable mass body 2 is generally cylindrical (oval and other shapes are possible) and is made of a metal material, such as steel or aluminum, depending on the amount of weight desired. Although not shown in the drawings, one or more mass bodies 2 may be stacked or nested (not shown) in place of one slidable mass to customize the feel and weight of the bat. nesting masses may be used. A coating or lubricant to aid sliding may be used on the inner surface of the mass 2 and / or the bat.

The mass 2 includes an outer surface 6 preferably comprising at least one seal 8 to provide a smooth sliding movement. For example, a pair of seals disposed close to each end of the mass and disposed along the periphery of the mass 2 are usable. In a completed training batt, which will be described in more detail below, the thread (s) 8 contact the inner circumference of the bat, as shown in Figures 6 and 7, and are made of nylon or polytetrafluoroethylene (PTFE , polytetrafluoroethylene), which is capable of sliding against the inner surface of the bat. Although the thread (s) are shown structurally anular, any other configuration that allows the masses 2 to slide in contact with the inner circumference of the bat can be used.

The passages 4 extending through the slidable mass body 2 preferably have different diameters at each end of the masses and have a diameter 10 and a diameter 12, respectively, for example in FIGS. 3 and 4. The openings of different diameters may extend a predetermined distance through the mass 2, as illustrated in Fig. 6, so that the passages have different diameters. By having different diameters for the passages, the kinetic velocity for the mass 2 can be more accurately controlled and induce different effects during the swing motion. For example, if the mass is close to the center of rotation when the swing is started, small inertia provides control and angular acceleration of the improved bat. The force of the centrifugal acceleration causes the mass to slide out. The orifice is a method of controlling the rate at which the mass moves toward the tip of the bat to optimize the position of the sweet spot in the event of a bat-to-ball collision, Thus providing increased inertia to assist the swing's follow through.

Referring to Figs. 5-7, there is shown a batt 20 of the present invention utilizing the slidable mass described above. The batt can function as a stationary body of the mass body 2 and has an apex formed by an end cap 24 made of rubber or the like and is joined to a relatively thick barrel portion 22, A portion 26 and a handle 28. As shown in Fig. Different bat styles can be used with or without an end cap as desired characteristics and slidable masses 2 are exchanged or changed.

The slidable mass shown in this embodiment does not contact any structure within the barrel 22 except for the sliding inner periphery 30 and end cap 24 (other embodiments may or may not have an end cap But the mass is in contact with the end of the barrel portion 22). Thus, while the bat user swings, the mass 2 will move towards the bat end / end cap along M as air passes through the passage 4. [

The following description of the mechanism of the bat in accordance with the present invention is provided, but it is not intended to limit the present disclosure to any particular mechanism of action. The slidable mass 2 provides a dynamic MOI with a reduced initial MOI (momentum of inertia) before starting the swing. In the act of swinging the bat, centripetal acceleration acts on the bat to change the position of the slidable mass, increasing the MOI as the swing progresses.

In other words, the reduced MOI at the start of the swing gives the batter control over the ball contact point with a high swing speed. The increased MOI in the later part of the swing will allow the bat user to train follow through after the contact of the ball and bat is completed.

로 연산될 수 있으며, N은 이산 입자의 총 개수이고, 첨자 p는 회전축이 통하여 이동하는 점이다. 따라서, 본 발명의 방망이는 방망이의 단부에서 공기의 폐쇄된 체적을 향하는 구심 가속에 기인한 질량체의 운동에 의해 작용한다. 슬라이드 가능한 질량체는 더 높은 압력으로 더 작은 부피로 공기를 압축하여 공기가 질량체의 중심을 통과하는 통로를 통해 흐르게 한다. 통로는 슬라이더 이동 속도에 대한 제어 메커니즘을 제공하는 흐름을 제한하고, 따라서 MOI의 변경을 제한한다. 결과적으로, 스윙 다이내믹은 서로 다른 타자의 강도 및 기타 속성에 맞게 사용자 정의될 수 있다.Inertia momentum is a physical feature that can measure the resistance of the fuselage to changes in the angular rotation velocity of the object. The MOI is performed by defining a small group of individual mass particles, such as the total mass, and defining the distance r _j of the mass particles m _i at the designated rotation axis. The MOI

Where N is the total number of discrete particles and the subscript p is the point through which the rotation axis moves. Thus, the bat of the present invention acts by the movement of the mass due to centripetal acceleration towards the closed volume of air at the end of the bat. The slidable mass compresses the air to a smaller volume at higher pressure, allowing air to flow through the passageway through the center of the mass. The passageway limits the flow providing the control mechanism for the slider movement speed and thus limits the change of the MOI. As a result, swing dynamics can be customized to match the strengths and other attributes of different hats.

Figures 8 and 9 illustrate another embodiment of a slidable mass for use within the bat and accessory sleeve of the present invention. A generally cylindrical sleeve 40, which is preferably made of an elastic material such as urethane, may be made of any rigid material, such as metal, Lt; / RTI >

The sleeve provides an additional channel in which the slidable mass is received so that pitting or damage to the barrel portion 22 does not interfere with the sliding motion of the mass.

The sleeve 40 may include an aperture 42 through which air can be released from the sleeve as the slidable mass 44 moves toward the aperture. In this embodiment of the slidable mass, the passageway 50 allows air to pass through the mass 44 during movement of the mass, and the weight 46 is removably attached within the thread 48. The weight 46 is removable according to a user's preference for using a weight of different weight according to the user's preference.

9 is a cross-sectional view of the bat using the sleeve and the slidable mass shown in Fig. Due to the tapered conical shape and the length of the weight 46, it can protrude into the tapered portion 26 of the bat and even reach the end of the handle portion 28 along the bat. Therefore, as the slidable mass body 44 and the added weight 46 move from the handle to the end cap 24 by almost the length of the bat, the user can experience an improved swing motion.

The bat 20 and the sleeve 40 may be designed such that the end cap 24 and the handle portion 28 are contained within the sleeve 40 to stop the movement of the slidable mass 44, And the sleeve includes an end fitting 52 (e.g., a plug) and an end fitting 52 (e.g., a plug) that fit into the perimeter opening of the sleeve 40 so as to be spaced between the sleeve and the inner surface 30 of the bat. For example, a key ring). The end fitting may be an additional element or may be formed integrally with the sleeve.

Additionally, a kit may be provided that includes a bat with a hollow interior and a removable end cap, a cylindrical sleeve configured to be contained within the hollow interior, and a slidable mass within the sleeve. Removable weights, end fittings and other accessories can be added.

10 and 11, a sports or athletic training device 60 (including a bass, a racquet or a golf club) that includes an empty body defining a interior volume and a slidable mass 62 Which can be implemented in a rotating mechanism.

The empty body in this embodiment is configured to seat the slidable mass 62 through a magnetic attraction to the magnet 64 (shown as the tapered end of the device 60) and magnet 64 located at the handle end And a slidable mass body (62) comprising a magnet portion configured. The user exerts a swing force to release the slidable mass body 62 from the magnet 64.

The slidable mass body 62 moves within the cylindrical sleeve 66 having a first end and a second end. Generally, a cylindrical shape is defined to include other shapes close to polygons and cylinders (e.g., octagonal sleeves). Generally, the cylindrical sleeve 66 is in a nested arrangement with the inner periphery 68 of the hollow body and is maintained in a superposed arrangement, for example by a plurality of struts 70.

12-15, the training device 71 is characterized by a hollow interior volume having a sleeve 72 disposed in a nested arrangement with an inner periphery 74 by a strut 76. [ The sleeve 72 further includes a pair of openings 78, 80 disposed adjacent each end of the sleeve. It is preferred that a larger opening of the device 71 is located adjacent the handle end 81 so that the slidable mass body 82 inside the sleeve can more quickly return to the handle end. Alternatively, the pair of openings may be in the batt end (e.g., opening 85 in end cap 84) and the opposite end (e.g., opening 78) of the sleeve.

The masses 82 slidable by the struts 76 generally do not come into contact with other structures in the hollow body except for the inner surface of the cylindrical sleeve and the end cap 84 of the device.

16 and 17, the slidable mass body 90 includes a longitudinal passage 92 having a diameter of a different opening at each end, or the slidable mass body 94 includes a mass 94 may have a passageway in outer layer 96 forming a slit or notch 98 for venting air as it slides. Alternatively, the notch 98 may be included around the slidable mass 94 rather than the added outer layer.

Various changes to the details and components described may be made by those skilled in the art within the principles and scope of the invention as defined in the claims and defined in the appended claims. Thus, while the present invention has been shown and described as being considered to be the most practical and preferred embodiment herein, it is well known that departures may be made within the scope of the invention within the scope of the invention, and is not limited to the detailed description. To the full scope of the claims, including any and all equivalent processes and products.

2: mass 4: passage
6: outer surface 8: thread
10: diameter 12: diameter
20: bat 22: barrel part
24: end cap 26: tapered portion
28: handle portion 30: inner surface
40: sleeve 42: hole
44: Mass 46: Chu
48: threaded portion 50: passage
52: end fitting 54:
60: exercise training device 62: mass
64: Magnet 66: Sleeve
68: inner week 70: holding
71: training device 72: sleeve
74: the week 76: the landlord
78: opening 80: opening
81: Handle end 82:
84: end cap 85: opening

Claims (7)

A sports or training apparatus in which a user wields with one hand or two hands, said apparatus comprising:
An empty body defining an interior volume; And
Comprising a slidable mass,
The slidable mass body is slidably contained within a generally cylindrical sleeve having a first end and a second end, the generally cylindrical sleeve being arranged with an inner periphery of the hollow body, And a pair of openings located adjacent to the end of the device and at opposite ends of the device and the sleeve, wherein either one of the pair of openings is larger than the other. The method according to claim 1,
Said generally cylindrical sleeve being held in a superposed arrangement by a plurality of struts. The method according to claim 1,
The slidable mass is free from any structure in the hollow body except for the inner surface of the generally cylindrical sleeve and the end cap of the device or the end fitting of the sleeve Device. The method according to claim 1,
A magnet is disposed at the handle end,
Wherein the slidable mass includes a magnet portion configured to seat the slidable mass through a magnetic attraction to the magnet. A sports or training apparatus in which a user wields with one hand or two hands, said apparatus comprising:
An empty body defining an interior volume within the training device; And
And a slidable mass having a passage extending in the direction of movement,
Wherein the slidable mass is contained in the internal volume,
Wherein the passageways extending in the direction of movement have different diameters at each end of the mass. 6. The method of claim 5,
Said hollow body comprising a magnet disposed at the congested end of said apparatus,
Wherein the slidable mass comprises a magnet portion for seating the slidable mass on the magnet via magnetic attraction and for releasing the slidable mass from the magnet in providing a swing force by the user. 6. The method of claim 5,
Wherein the slidable mass is not in contact with the inner surface of the inner volume and other structures inside the hollow body except the end cap of the apparatus.

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