Pressure-sensing laminate for sports practice device, method of manufacturing same, and golf practice device including same

Abstract

A pressure-sensing laminate for a sports practice device according to the present invention comprises, with respect to a pressure-sensing laminate for sports practice device capable of sensing pressure applied by a player to a grip part: a conductive layer having pressure sensitivity; a circuit layer disposed to face the conductive layer and provided with a plurality of conductive patterns; and a separation layer disposed between the conductive layer and the circuit layer and made of a fiber structure comprising a plurality of fibers, wherein, when pressure is applied, the conductive layer and the circuit layer come into contact with each other to sense the pressure.

Description

Pressure sensing laminate for an exercise training device, method of manufacturing the same, and golf training device including the same

[0001] The present invention relates to a pressure-sensing laminate for an exercise practice device, a method for manufacturing the same, and a golf practice device including the same. More specifically, the invention relates to a pressure-sensing laminate for an exercise practice device capable of assisting exercise practice by measuring the pressure with which a user grips an exercise tool, a method for manufacturing the same, and a golf practice device including the same.

[0002] There are various sports that utilize equipment specific to the sport. In particular, in sports such as baseball and golf, players use baseball bats or golf clubs.

[0003] Among sports that utilize such equipment, golf is a sport in which a golf ball is put into a hole on a golf course. Therefore, in order to put the golf ball into the hole, a golfer must swing a golf club to hit the ball, and a lot of practice is required to play with a low score.

[0004] Meanwhile, the grip, which involves holding the golf club with both hands, is the starting point of the swing. In particular, grip strength is a prerequisite for executing a smooth swing; gripping too tightly can stiffen the entire body and lead to mis-shots. However, many golfers unconsciously apply excessive force to their grip. In fact, studies have shown a significant difference in grip strength between professional and amateur golfers.

[0005] For this reason, golf instructors always advise hitting with relaxed power for a consistent golf swing. However, it is difficult for beginners to swing with relaxed power.

[0006] The American golf magazine Golf Magazine used a computer to analyze changes in grip pressure during the swing of professional and amateur golfers. The results showed that amateur golfers grip the club with twice the force of professional golfers.

[0007] Grip strength is one of the reasons why professional golfers have smooth swings. First, grip strength at address is similar for professional golfers (20%) and amateur golfers (26%). However, research results showed that once the backswing begins, the grip strength of professional golfers increases slightly to 29%, while that of amateur golfers jumps to 52%.

[0008] Even at the top of the backswing, professional golfers' grip pressure increased to 48%, roughly double that of their address position, whereas amateur golfers' grip pressure surged to 78%, nearly three times higher. This is because amateurs lift the club using only their arms without sufficient torso rotation. This is cited as a cause of slices or hooks by creating an outside-in swing path. At impact, there was no significant difference, with professional golfers' grip pressure at 85% and amateurs' at 97%. However, during the follow-through at waist height after impact, professionals used 25%, while amateurs used 55%, more than double that of the pros. In other words, professionals increase their grip strength only when necessary, whereas amateurs apply force at all times. In particular, when the downswing begins from the top of the backswing, the angle formed by the left arm and the club shaft was 104 degrees for professionals, compared to only 76 degrees for amateurs. This is one of the reasons why professionals' shots travel further. The professional angle allows the head speed to be accelerated until impact.

[0009] To prevent body stiffness caused by a strong grip, instructors recommend practicing with a light grip where the left hand is held normally, but the right hand is placed next to the left. The development of golf equipment for this practice method is necessary, and such equipment can serve as a good tool for correcting the swing habits of existing amateur golfers.

[0010] Therefore, it is necessary to develop a pressure measuring component capable of measuring a golfer's grip pressure and quantifying it.

[0011] The inventor of the present invention has completed the present invention after conducting long research and going through trial and error to satisfy the development requirements for the aforementioned golf practice device.

[0012] The present invention was created to solve the problems of the prior art as described above. One objective of the present invention is to provide a pressure-sensing laminate for an exercise practice device capable of assisting golf practice by measuring the pressure a golfer applies when gripping a golf club, a method for manufacturing the same, and a golf practice device including the same.

[0013] Meanwhile, other unspecified objectives of the present invention will be further considered to the extent that they can be easily inferred from the following detailed description and effects.

[0014] A pressure sensing laminate for an exercise training device according to one aspect of the present invention is a pressure sensing laminate for an exercise training device capable of detecting pressure exerted by a player gripping a grip portion, comprising: a conductive layer having pressure sensitivity; a circuit layer disposed facing the conductive layer and having a plurality of conductive patterns; and a separation layer disposed between the conductive layer and the circuit layer and formed of a fiber tissue comprising a plurality of fibers, wherein when pressure is generated, the conductive layer and the circuit layer come into contact to detect the pressure.

[0015] In one embodiment of the present invention, the separation layer has restorability and can separate the conductive layer and the circuit layer.

[0016] In one embodiment of the present invention, the thickness of the separation layer may be 0.01 mm to 0.02 mm.

[0017] In one embodiment of the present invention, the separation layer may be formed using at least one selected from the group consisting of polydimethylsiloxane (PDMS), thermoplastic polyurethane (TPU), and epoxy.

[0018] In one embodiment of the present invention, the separation layer may be formed using at least one selected from the group using a spin coating method, an electrospinning method, and a roll-to-roll method.

[0019] In one embodiment of the present invention, the separation layer may be formed by electrospinning thermoplastic polyurethane or epoxy.

[0020] In one embodiment of the present invention, the conductive layer may have a resistance that changes according to pressure and may have recovery elasticity.

[0021] In one embodiment of the present invention, the resistance of the conductive layer can be lowered by pressure.

[0022] In one embodiment of the present invention, the circuit layer is composed of a Flexible Printed Circuit Board (FPCB) including a plurality of pattern regions including a plurality of conductive patterns, and the plurality of pattern regions may be spaced apart from each other.

[0023] In one embodiment of the present invention, the plurality of conductive patterns includes a first conductive pattern and a second conductive pattern, wherein the first conductive pattern includes a first conductive stem extended in one direction and a plurality of first conductive branches extended in a direction intersecting the first conductive stem, and the second conductive pattern includes a second conductive stem extended parallel to the first conductive stem and a plurality of second conductive branches extended in a direction intersecting the second conductive stem, and the first conductive branches and the second conductive branches may be arranged alternately.

[0024] In one embodiment of the present invention, when pressure is generated, the conductive layer and the circuit layer come into contact, so that the conductive layer can electrically connect the first conductive pattern and the second conductive pattern.

[0025] In one embodiment of the present invention, a protective layer disposed on the outer surface of the conductive layer and the circuit layer may be further included.

[0026] A method for manufacturing a pressure-sensing laminate according to one aspect of the present invention comprises: a circuit layer attachment step of attaching a circuit layer to a rotating drum; a separation layer formation step of forming a separation layer on the surface of the circuit layer; and a conductive layer formation step of forming a pressure-sensitive conductive layer on the separation layer, wherein the separation layer may be formed using at least one of polydimethylsiloxane (PDMS), thermoplastic polyurethane (TPU), and epoxy using a spin coating method, an electrospinning method, and a roll-to-roll method.

[0027] In one embodiment of the present invention, the electrospinning method can form the separation layer by injecting a thermoplastic polyurethane or epoxy solution into a syringe-shaped spinning device, applying an electric field between the spinning device and the rotating drum, and connecting the nozzle of the spinning device to a high-voltage power supply to inject and charge the solution being discharged, thereby discharging the solution onto the surface of the circuit layer.

[0028] In one embodiment of the present invention, the step of forming a protective layer on the outer surface of the conductive layer and the circuit layer may be further included.

[0029] A golf practice device according to one aspect of the present invention comprises a shaft, a head portion provided on one side of the shaft, and a grip portion provided on the other side of the shaft to surround the outside of the shaft, wherein the device comprises a pressure sensing laminate provided between the shaft and the grip portion and generating pressure data by sensing pressure applied to the grip portion, wherein the pressure sensing laminate comprises a conductive layer having pressure sensitivity; a circuit layer disposed facing the conductive layer and having a plurality of conductive patterns; and a separation layer disposed between the conductive layer and the circuit layer and formed of a fiber tissue including a plurality of fibers, wherein when pressure is generated, the conductive layer and the circuit layer come into contact to detect the pressure.

[0030] In one embodiment of the present invention, the invention further comprises a data processing module disposed within the shaft and processing the pressure data; and a capsule structure that mounts the data processing module in an internal space and places the data processing module inside the shaft, wherein the capsule structure can place the data processing module at a position overlapping with the grip portion.

[0031] In one embodiment of the present invention, the capsule structure comprises a body portion for housing the data processing module; and a flange portion provided on one side of the body portion, wherein the flange portion is exposed to the outside of the other side of the shaft, and a power terminal for receiving power from the outside may be provided on the flange portion.

[0032] In one embodiment of the present invention, the body portion may include a first body having an internal space in which the data processing module is mounted; and a second body coupled to the first body to cover the internal space.

[0033] In one embodiment of the present invention, a swing data collection unit that senses a golfer's swing and generates the swing data may be further included.

[0034] The pressure sensing laminate for an exercise practice device according to the present invention can assist in golf practice by measuring the pressure exerted by a golfer gripping a golf club and deriving pressure data. Accordingly, the golf practice device according to the present invention can induce improvement in the golfer's skills by correcting the golfer's swing and the pressure exerted on the grip.

[0035] FIG. 1 is a drawing for explaining a golf practice device according to one embodiment of the present invention.

[0036] FIG. 2 is a partially cutaway perspective view to illustrate the area overlapping with the grip portion shown in FIG. 1.

[0037] FIG. 3 is a cross-sectional view illustrating the area overlapping with the grip portion shown in FIG. 2.

[0038] Figure 4 is a drawing for explaining the pressure sensing stack shown in Figure 2.

[0039] Figure 5 is a diagram illustrating the circuit layer shown in Figure 4.

[0040] Figure 6 is a diagram illustrating the challenge pattern shown in Figure 5.

[0041] FIG. 7 is a perspective view illustrating the capsule structure and fixing member shown in FIG. 2.

[0042] FIG. 8 is an exploded perspective view illustrating the capsule structure and fixing member shown in FIG. 7.

[0043] Figure 9 is a cross-section of the capsule structure illustrated in Figure 7.

[0044] FIG. 10 is a plan view illustrating the flange portion of the capsule structure illustrated in FIG. 7.

[0045] Figure 11 is a diagram illustrating the relationship between a data processing module, a data collection module, and an external device.

[0046] FIG. 12 is a diagram illustrating the data collection module illustrated in FIG. 11.

[0047] FIG. 13 is a drawing for explaining a method of manufacturing a pressure sensing laminate for an exercise training device shown in FIG. 1 to FIG. 12.

[0048] FIG. 14 is a diagram illustrating the separation layer formation step illustrated in FIG. 13.

[0049] FIG. 15 is a cross-sectional image illustrating the state in which a separation layer is formed on a circuit layer.

[0050] Figure 16 is a planar image illustrating the state in which a separation layer is formed on a circuit layer.

[0051] Figures 17 and 18 are enlarged images illustrating the fibrous tissue within the separation layer.

[0052] It should be noted that the attached drawings are provided as examples for reference to help understand the technical concept of the present invention, and the scope of the rights of the present invention is not limited by them.

[0053] The terms used in this invention have been selected to be as widely used as possible; however, in specific cases, terms have been arbitrarily selected by the applicant. In such cases, the meaning should be understood by considering the specific details or usage described in the content for implementing the invention, rather than merely the name of the term.

[0054] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0055] The objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments. Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted where it is determined that such detailed descriptions may unnecessarily obscure the essence of the invention.

[0056] Additionally, terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0057]

[0058] A golf practice device according to an embodiment of the present invention is described below with reference to the attached drawings.

[0059] FIG. 1 is a drawing for explaining a golf practice device according to an embodiment of the present invention. FIG. 2 is a partially cutaway perspective view for explaining an area overlapping with the grip portion shown in FIG. 1. FIG. 3 is a cross-sectional view for explaining an area overlapping with the grip portion shown in FIG. 2. FIG. 4 is a drawing for explaining a pressure sensing laminate shown in FIG. 2. FIG. 5 is a drawing for explaining a circuit layer shown in FIG. 4. FIG. 6 is a drawing for explaining a conductive pattern shown in FIG. 5. FIG. 7 is a perspective view for explaining a capsule structure and a fixing member shown in FIG. 2. FIG. 8 is an exploded perspective view for explaining a capsule structure and a fixing member shown in FIG. 7. FIG. 9 is a cross-section of a capsule structure shown in FIG. 7. FIG. 10 is a plan view for explaining a flange portion of a capsule structure shown in FIG. 7. FIG. 11 is a drawing for explaining the relationship between a data processing module, a data collection module, and an external device. FIG. 12 is a drawing for explaining a data collection module shown in FIG. 11.

[0060] Referring to FIGS. 1 to 12, a golf practice device (1000) according to one embodiment of the present invention can collect and process swing data related to the swing of a user golfer and pressure data related to the pressure with which the golfer grips the golf club. Additionally, the golf practice device (1000) can transmit the processed data to an external device. The external device can analyze the transmitted data to correct the golfer's swing trajectory and derive a method to correct the golfer's gripping method of the golf club.

[0061] The golf practice device (1000) described above may include a shaft (10), a head part (20), and a grip part (30).

[0062] The shaft (10) may have a shape that extends in one direction with a predetermined diameter. A head portion (20) may be connected to one side of the shaft (10), and a grip portion (30) may be connected to the other side.

[0063] The shaft (10) may have a shape such as a tube or pipe. Additionally, the shaft (10) may have a shape in which the diameter in the direction of the head portion (20) is smaller than the diameter in the direction of the grip portion (30). Additionally, the shaft (10) may have a shape in which the diameter in the direction of the head portion (20) and the diameter in the direction of the grip portion (30) are the same.

[0064] The head portion (20) is connected to one side of the shaft (10) and can strike the golf ball through the golfer's swing. The head portion (20) may have a shape that allows the golfer to swing and strike the golf ball accurately.

[0065] A grip portion (30) is provided on the other side of the shaft (10) and allows a golfer to grip the golf practice device. The grip portion (30) can be formed from various materials that can improve the golfer's grip. For example, the grip portion (30) can be formed from natural rubber.

[0066] In one embodiment of the present invention, a data processing module (100), a capsule structure (200), and a data collection module (300) may be provided in an area adjacent to the grip portion (30) of the shaft (10). That is, the golf practice device (1000) may further include a data processing module (100), a capsule structure (200), and a data collection module (300).

[0067] The data processing module (100) can be placed inside the shaft (10). In particular, the data processing module (100) can be mounted in the internal space of the capsule structure (200) and placed within the shaft (10) in an area that overlaps with the grip portion (30) together with the capsule structure (200).

[0068] The data processing module (100) can process various data for golf practice. For example, the data processing module (100) can process swing data related to the golfer's swing collected by the data collection module (300) and pressure data related to the pressure with which the golfer grips the grip, and generate training data based on the processing results.

[0069] The data processing module (100) can transmit the generated training data to an external device (400). To this end, the data processing module (100) may include a communication unit (110) for transmitting data to the external device (400). That is, the data processing module (100) can be connected to the external device (400) via a wireless network. Here, the wireless network may refer to a connection structure capable of exchanging information between each node, such as the data processing module (100) and the external device (400). Examples of such networks may include, but are not limited to, RF, 3GPP (3rd Generation Partnership Project) networks, LTE (Long Term Evolution) networks, 5GPP (5th Generation Partnership Project) networks, WIMAX (World Interoperability for Microwave Access) networks, the Internet, LAN (Local Area Network), Wireless LAN (Wireless Local Area Network), WAN (Wide Area Network), PAN (Personal Area Network), Bluetooth networks, NFC networks, satellite broadcasting networks, analog broadcasting networks, DMB (Digital Multimedia Broadcasting) networks, etc.

[0070] In addition, in one embodiment of the present invention, the data processing module (100) is described as being connected to an external device (400) via a wireless network, but is not limited thereto. For example, the data processing module (100) may be connected to an external device (400) via a wired network. In particular, the data processing module (100) may be connected to an external device (400) via a data connection device such as a wired cable.

[0071] The data processing module (100) may store training data. To this end, the data processing module (100) may include a memory capable of storing data. In addition to training data, the memory may also store swing data and pressure data.

[0072] Meanwhile, in one embodiment of the present invention, the data processing module (100) processes swing data and pressure data to generate training data, and transmits this data to an external device (400), but the invention is not limited thereto. The data processing module (100) may transmit the swing data and pressure data to an external device (400) through the communication unit (110) without processing them. In this case, the external device (400) may process the swing data and pressure data and generate training data based on the processing results.

[0073] The capsule structure (200) can be placed inside the shaft (10). In particular, the capsule structure (200) can be placed within the shaft (10) in an area that overlaps with the grip portion (30).

[0074] The capsule structure (200) may have an internal space capable of housing the data processing module (100) described above. As the data processing module (100) is housed in the internal space of the capsule structure (200), the data processing module (100) may be positioned within the shaft (10) in an area overlapping with the grip portion (30). Additionally, as the data processing module (100) is housed in the internal space of the capsule structure (200), changes in the position of the data processing module (100) caused by the golfer's swing may be prevented.

[0075] The capsule structure (200) may have a shape that extends in one direction, for example, in the extension direction of the shaft (10). For example, the capsule structure (200) may have a shape such as a rotating body that extends in one direction.

[0076] In order for the capsule structure (200) to accommodate the data processing module (100) in its internal space, the capsule structure (200) may be formed to be longer than the length of the data processing module (100). However, in order to prevent an increase in weight due to the capsule structure (200) and to ensure that the capsule structure (200) is positioned overlapping with the grip portion (30), the capsule structure (200) may be formed to be shorter than the length of the grip portion (30).

[0077] The capsule structure (200) may include a body portion (210) and a flange portion (220).

[0078] The body portion (210) may provide an internal space in which a data processing module (100) is mounted. That is, the data processing module (100) may be mounted in the internal space of the body portion (210). The body portion (210) may include a first body (211) and a second body (213).

[0079] The first body (211) has an internal space in which a data processing module (100) is installed, and the data processing module (100) can be installed in the internal space.

[0080] The second body (213) is combined with the first body (211) to cover the internal space of the first body (211). Thus, the second body (213) can prevent the data processing module (100) from being exposed to the outside or detached.

[0081] The flange portion (220) may be provided on one side of the body portion (210). Additionally, the flange portion (220) may be exposed to the outside of the other side of the shaft (10).

[0082] The diameter of the flange portion (220) may be larger than the diameter of the body portion (210). Additionally, the diameter of the flange portion (220) may be substantially the same as the outer diameter of the shaft (10). Therefore, since the diameter of the flange portion (220) and the outer diameter of the shaft (10) are the same, the exterior of the other side of the shaft (10) may have a smooth shape.

[0083] Additionally, a power terminal (221) for receiving power from the outside may be provided in the flange portion (220). For example, as shown in FIG. 7, the power terminal (221) may be provided on the end surface of the flange portion (220).

[0084] Meanwhile, in one embodiment of the present invention, a power terminal (221) is provided on the flange portion (220) as an example, but it is not limited thereto. In addition to the power terminal (221), a data terminal may be additionally provided on the flange portion (220). Here, the data terminal can connect the data processing module (100) and the data collection module (300) through a data cable, or connect the data processing module (100) and an external device (400).

[0085] In one embodiment of the present invention, at least a portion of the outer part of the capsule structure (200) may be spaced apart from the inner circumference of the shaft (10).

[0086] To this end, a fixing member capable of separating the outside of the capsule structure (200) from the inside of the shaft (10) may be provided on at least one of the two sides of the capsule structure (200). For example, a first fixing member (230) may be provided on one side of the capsule structure (200), and a second fixing member (240) may be provided on the other side of the capsule structure (200).

[0087] The first fixing member (230) and the second fixing member (240) can separate the outside of the capsule structure (200) from the inside of the shaft (10), and also allow the capsule structure (200) to be fixed inside the shaft (10). In particular, the first fixing member (230) and the second fixing member (240) can separate the area between at least the first fixing member (230) and the second fixing member (240) of the capsule structure (200) from the inner circumference of the shaft (10).

[0088] At least one of the first fixing member (230) and the second fixing member (240) may be made of an elastic material, for example, a material such as elastic rubber. Additionally, at least one of the first fixing member (230) and the second fixing member (240) may have a shape that extends along the outer circumference of the capsule structure (200). That is, at least one of the first fixing member (230) and the second fixing member (240) may perform a function such as an O-ring.

[0089] Additionally, the capsule structure (200) may include a coupling groove that allows the first fixing member (230) and the second fixing member (240) to be coupled. For example, the capsule structure (200) may include a first coupling groove (200A) coupled to the first fixing member (230) and a second coupling groove (200B) coupled to the second fixing member (240). The first coupling groove (200A) and the second coupling groove (200B) may be provided along the outer circumference of the capsule structure (200).

[0090] In one embodiment of the present invention, the golf practice device (1000) may further include a power storage device (500). The power storage device (500) can store power supplied to the data processing module (100).

[0091] The power storage device (500) may be placed in a position that overlaps with the grip portion (30). For example, the power storage device (500) may be provided in a part of the internal space of the capsule structure (200) that overlaps with the grip portion (30).

[0092] The power storage device (500) described above may be provided as a secondary battery. Accordingly, the power storage device (500) can store power supplied from the outside. For example, the power storage device (500) is electrically connected to a power terminal (221) and can store power supplied from an external power source through the power terminal (221).

[0093] Meanwhile, in one embodiment of the present invention, the power storage device (500) is described as being composed of a secondary battery, but is not limited thereto. For example, the power storage device (500) may be provided with a replaceable primary battery. Accordingly, when all the power stored in the power storage device (500) is consumed, the power storage device (500) from which all the power has been consumed can be separated and removed from the golf practice device (1000). Then, a new power storage device (500) with stored power can be attached to the golf practice device (1000).

[0094] The data collection module (300) can collect data related to at least one of the golfer's swing and the gripping pressure of the grip portion (30). For example, the data collection module (300) can collect at least one of swing data related to the golfer's swing and pressure data related to the gripping pressure of the golfer's grip portion (30).

[0095] To this end, the data collection module (300) may include at least one of a pressure sensing laminate (310) and a swing data collection unit (320). For example, the data collection module (300) may include only one of the pressure sensing laminate (310) and the swing data collection unit (320), or it may include both the pressure sensing laminate (310) and the swing data collection unit (320).

[0096] The pressure sensing laminate (310) can generate pressure data by converting the pressure applied by the golfer to the grip portion (30) into numerical values ​​for each point and transmit this to the data processing module (100).

[0097] The pressure sensing laminate (310) may be positioned overlapping the grip portion (30). For example, the pressure sensing laminate (310) may be positioned between the inner circumference of the grip portion (30) and the outer circumference of the shaft (10).

[0098] As shown in FIGS. 2 to 6, the pressure sensing laminate (310) may include a conductive layer (311), a circuit layer (313), and a separation layer (315). The conductive layer (311), the circuit layer (313), and the separation layer (315) of the pressure sensing laminate (310) may be arranged between the shaft (10) and the grip portion (30) and may be provided in a laminated form.

[0099] A conductive layer (311) is placed between the shaft (10) and the grip portion (30) and has pressure sensitivity so that the pressure sensing laminate (310) can detect pressure generated on the grip portion (30).

[0100] The conductive layer (311) may be made of a material that has a change in resistance according to pressure and has resilience. For example, the conductive layer (311) may be made of a pressure-sensitive nonwoven fabric. Additionally, when no pressure is applied, the conductive layer (311) may have a sheet resistance of 180 Ω / sq to 220 Ω / sq, for example, 200 Ω / sq. When pressure is applied to the conductive layer (311), the resistance of the conductive layer (311) may be lowered.

[0101] The conductive layer (311) may have a thickness of 0.8 mm or less.

[0102] A conductive layer (311) may be provided between the circuit layer (313) and the grip portion (30). The resistance of the area where pressure is applied in this conductive layer (311) may be lowered. Accordingly, the conductive layer (311) with lowered resistance may conduct only specific locations of the circuit layer (313), thereby allowing the pressure sensing signal at the location where pressure is applied to be transmitted through the circuit layer (313).

[0103] The circuit layer (313) may be positioned facing the conductive layer (311). For example, the circuit layer (313) may be positioned between the shaft (10) and the conductive layer (311).

[0104] The circuit layer (313) can transmit the pressure generated on the conductive layer (311) to the data processing module (100). That is, the pressure sensing laminate (310) can detect the pressure at each point generated on the grip portion (30), generate pressure data, and transmit the generated pressure data to the data processing module (100).

[0105] In one embodiment of the present invention, the circuit layer (313) may be provided in the form of a flexible film comprising a plurality of pattern regions (313B) having a plurality of conductive patterns. For example, the circuit layer (313) may be provided in the form of a flexible printed circuit board (FPCB). Here, the plurality of pattern regions (313B) may be spaced apart from each other.

[0106] The challenge pattern included in each pattern area (313B) may include a first challenge pattern (313BA) and a second challenge pattern (313BB).

[0107] The first conductive pattern (313BA) may include a first conductive stem (313BA1) extended in one direction, and a plurality of first conductive branches (313BA2) extended from the first conductive stem (313BA1) in a direction intersecting the first conductive stem (313BA1).

[0108] The second conductive pattern (313BB) may include a second conductive stem (313BB1) extended in one direction, and a plurality of second conductive branches (313BB2) extended from the second conductive stem (313BB1) in a direction intersecting the second conductive stem (313BB1). Here, the second conductive stem (313BB1) may extend in a direction substantially parallel to the first conductive stem (313BA1), and the second conductive branches (313BB2) may extend in a direction toward the first conductive stem (313BA1). Additionally, the first conductive branches (313BA2) and the second conductive branches may be arranged alternately.

[0109] When pressure is applied to each pattern area (313B), the first conductive pattern (313BA) and the second conductive pattern (313BB) can come into contact with the conductive layer (311) to form a current path. Accordingly, whether pressure is applied to each pattern area (313B) can be determined by whether a signal of current or voltage is transmitted from each pattern area (313B) to the data processing module (100).

[0110] An output terminal (313A) capable of transmitting pressure data to a data processing module (100) may be provided on one side of the circuit layer (313). The output terminal (313A) may have a shape extending from one side of the circuit layer (313).

[0111] A separation layer (315) may be placed between the conductive layer (311) and the circuit layer (313). The separation layer (315) may separate or separate the conductive layer (311) and the circuit layer (313) with restorability. Due to such restorability of the separation layer (315) as described above, the pressure sensing laminate (310) is capable of accurate pressure sensing for local pressure.

[0112] The separation layer (315) may have a thickness of 0.01 mm to 0.02 mm. Since it is possible to design it without affecting the thickness of the grip portion (30) as thinner it is, the separation layer (315) is better to be thin, but it is desirable to have such a thickness range considering the aforementioned resilience.

[0113] The separation layer (315) has heat resistance and can be formed of a fiber tissue comprising a plurality of fibers. For example, the separation layer (315) can have the form of a fiber membrane woven by a plurality of fibers.

[0114] The separation layer (315) is 10 Kg / cm 2 It can have a high pressure sensing range extending to the following. This enables the pressure transmitted through the grip to be accurately measured for each pressurized area. It can provide discrete sensing results for each pressurized area.

[0115] In addition, the separation layer (315) can have high heat resistance of 150°C or higher. This ensures diversity in the manufacturing process, making it possible to apply more advantageous processes, such as electrospinning methods.

[0116] The separation layer (315) can be formed using at least one selected from the group consisting of polydimethylsiloxane (PDMS), thermoplastic polyurethane (TPU), and epoxy.

[0117] Additionally, the separation layer (315) may be formed using one of a spin coating method, an electrospinning method, and a roll-to-roll method, selected from at least one of the groups described above. For example, the separation layer (315) may have the form of a fiber film formed by electrospinning thermoplastic polyurethane or epoxy.

[0118] When pressure is applied to the grip portion (30), the conductive layer (311) may be deformed by the pressure, and the separation layer (315) may be compressed. When the conductive layer (311) is deformed by the pressure and the separation layer (315) is compressed, the conductive layer (311) may come into contact with the first conductive pattern (313BA) and the second conductive pattern (313BB) of the pattern area (313B) in the space between the fibers of the separation layer (315). Additionally, the resistance of the area where pressure is applied to the conductive layer (311) may be reduced. Thus, the first conductive pattern (313BA) and the second conductive pattern (313BB) may be electrically connected, allowing current to flow. At this time, the current passing through the first conductive pattern (313BA) and the second conductive pattern (313BB) may be transmitted to the data processing module (100).

[0119] Here, the current or voltage transmitted from the pressure sensing laminate (310) to the data processing module (100) is changed by the resistance reduced by pressure, and the changed current or voltage can be transmitted to the data processing module (100) in the form of pressure data.

[0120] In one embodiment of the present invention, the pressure sensing laminate (310) may further include a protective layer (317). The protective layer (317) may be provided between the conductive layer (311) and the grip portion (30), and between the circuit layer (313) and the shaft (10). That is, the protective layer (317) is a layer exposed to the outside of the pressure sensing laminate (310) and can protect the internal conductive layer (311) and the circuit layer (313).

[0121] The protective layer (317) may have a thickness of 0.04 mm to 0.06 mm, for example, 0.05 mm. The protective layer (317) may be made of a material capable of being coated by heat. Meanwhile, in one embodiment of the present invention, the protective layer (317) is described as being made of a material capable of being coated by heat as an example, but is not limited thereto. For example, the protective layer (317) may be made of an adhesive film.

[0122] Meanwhile, although not shown in the drawing, an adhesive layer may be provided between the protective layer (317) attached to the circuit layer (313) and the shaft (10), and between the protective layer (317) attached to the conductive layer (311) and the grip portion (30). The adhesive layer may bond the pressure sensing laminate (310) and the shaft (10), and bond the pressure sensing laminate (310) and the grip portion (30). Here, the adhesive layer may be made of an adhesive or double-sided tape.

[0123] In one embodiment of the present invention, since the pressure sensing laminate (310) is provided on the outer circumference of the shaft (10), an inlet portion (223) into which an output terminal (313A) can be inserted may be provided in a part of the capsule structure (200). For example, the inlet portion (223) may be provided in the flange portion (220). The inlet portion (223) may be a type of through hole that connects the internal space of the capsule structure (200) with the external space of the capsule structure (200). Accordingly, the output terminal (313A) can be electrically and / or physically connected to the data processing module (100) by being inserted into the inlet portion (223).

[0124] The swing data collection unit (320) can sense the golfer's swing to generate swing data and transmit it to the data processing module (100). The swing data collection unit (320) can be provided inside the shaft (10).

[0125] In one embodiment of the present invention, the swing data collection unit (320) may include a sensor capable of detecting the movement trajectory, movement speed, and acceleration of an object, such as a gyro sensor.

[0126] Meanwhile, the total weight of the golf practice device (1000) may increase due to the capsule structure (200) and the data processing module (100). In particular, the weight of the area corresponding to the grip portion (30) of the golf practice device (1000) may increase, and consequently, the center of gravity of the golf practice device (1000) may change. Golfers are very sensitive to the increase in weight and the change in the center of gravity of the golf practice device (1000). Therefore, it is necessary to prevent unintended weight increase and change in the center of gravity of the golf practice device (1000).

[0127] Accordingly, the grip portion (30) according to one embodiment of the present invention may have a recess (31) on the surface facing the shaft (10), as shown in FIG. 3. When the grip portion (30) is provided with the recess (31), the weight of the grip portion (30) may be reduced. If the weight of the grip portion (30) is reduced, weight increase and change in the center of gravity caused by the capsule structure (200) and the data processing module (100) can be prevented. That is, the recess (31) of the grip portion (30) can offset the weight increased by the capsule structure (200) and the data processing module (100). Through this weight offset mechanism, the weight of the area corresponding to the grip portion (30) can be consistently maintained before and after mounting the capsule structure (200) and the data processing module (100) according to one embodiment of the present invention.

[0128] In the drawings, for convenience of explanation, the lumbar portion (31), which is an example of an embodiment of the weight offsetting mechanism, is depicted at a somewhat exaggerated scale; however, the present invention is not limited to the illustrated example, and the lumbar portion may have various structures for weight offsetting. For example, the weight offsetting mechanism may be implemented with a recessed embossed shape (wherein the recessed embossed shape may be formed irregularly or regularly).

[0129] In addition, according to another embodiment, the weight offset mechanism may be applied by adjusting the density of the grip instead of the aforementioned portion (31). For example, it may be applied by designing it to be lower than the density required for the grip portion itself (referred to as standard density). In this case, the design with a density lower than the standard density may be achieved through foaming treatment during the manufacturing process of the grip portion, or by using a different material with a relatively lower density. In either case, it is the same in that it can be considered as a weight offset mechanism to prevent unintended weight increase and change in the center of gravity when introducing the capsule structure (200) and the data processing module (100) into the golf practice device (1000).

[0130] Meanwhile, referring to FIGS. 11 and 12, the data processing module (100) and the data collection module (300) can operate using power stored in the power storage device (500). In particular, the pressure sensing laminate (310) of the data collection module (300) can operate using power stored in the power storage device (500).

[0131] For example, a first conductive pattern (313BA) within the circuit layer (313) of the pressure sensing laminate (310) may be electrically connected to a power storage device (500), and a second conductive pattern (313BB) may be electrically connected to an output terminal (313A). Thus, when pressure is applied to the grip portion (30), the conductive layer (311) can electrically connect the first conductive pattern (313BA) and the second conductive pattern (313BB) as the resistance of the conductive layer (311) decreases. When the first conductive pattern (313BA) and the second conductive pattern (313BB) are electrically connected, current is supplied to the output terminal (313A), and the voltage changed by the resistance of the conductive layer (311) is transmitted, and the data processing module (100) can receive the voltage changed by the resistance of the conductive layer (311) as pressure data.

[0132] Additionally, the data processing module (100) can generate training data by processing pressure data and swing data collected from the pressure sensing stack (310) and swing data collection unit (320) of the data collection module (300).

[0133] When training data is generated, the data processing module (100) can transmit the training data to an external device (400).

[0134] The external device (400) can provide the golfer with training data related to the pressure of gripping the grip portion (30) and the swing trajectory. The golfer can check the training data and identify parts of their swing that need correction, thereby improving their golf skills.

[0135] As described above, a pressure sensing laminate (310) according to one embodiment of the present invention may include a heat-resistant separation layer (315) formed of a fibrous tissue and a conductive layer (311) formed of a nonwoven fabric having recovery elasticity.

[0136] Accordingly, the pressure sensing laminate (310) can be applied to a manufacturing process conducted at a high temperature, for example, 150°C. This ensures diversity in the manufacturing process, thereby enabling the application of a more advantageous manufacturing process. Additionally, the pressure sensing laminate (310) can have a high pressure sensing range. For example, the pressure sensing laminate (310) can have a pressure of 10 Kg / cm² 2 It can have a high pressure sensing range extending to the following. Accordingly, the pressure sensing laminate (310) can accurately sense locally sensitive changing pressure. This allows the pressure transmitted through the grip portion (30) to be accurately measured for each pressurized area.

[0137] In contrast, in pressure sensors equipped with pressure-sensitive films and circuit boards, such as conventional velocity stats, the pressure-sensitive film is generally susceptible to high temperatures. In particular, since pressure-sensitive films undergo deformation or changes in physical properties at temperatures above 70°C, it is difficult to apply processes exceeding 70°C. Alternatively, even if manufactured, performance degradation of the pressure sensor may occur. Furthermore, pressure sensors equipped with pressure-sensitive films and circuit boards, such as velocity stats, have a pressure of 0.5 kg / cm² 2 Since it only has a low pressure sensing range, it is difficult to obtain discrete sensing results for each pressurized area.

[0138] A golf practice device (1000) including a pressure sensing laminate (310) as described above can help correct the gripping method of the golfer's grip portion (30) and swing motion by detecting at least one of the golfer's swing data and pressure data, for example, both of the golfer's swing data and pressure data, and generating training data that processes the swing data and pressure data.

[0139]

[0140] In the following, a method for manufacturing a pressure-sensing laminate for an exercise training device is described with reference to FIGS. 13 to 18.

[0141] FIG. 13 is a drawing for explaining a method for manufacturing a pressure-sensing laminate for an exercise training device illustrated in FIG. 1 to 12. FIG. 14 is a drawing for explaining the step of forming a separation layer illustrated in FIG. 13. FIG. 15 is a cross-sectional image for explaining the state in which a separation layer is formed on a circuit layer. FIG. 16 is a planar image for explaining the state in which a separation layer is formed on a circuit layer. FIG. 17 and FIG. 18 are enlarged images for explaining the fibrous tissue within the separation layer.

[0142] Referring to FIGS. 13 to 18, a method for manufacturing a pressure sensing laminate for an exercise training device may include a circuit layer attachment step (S100), a separation layer formation step (S200), a conductive layer formation step (S300), and a protective layer formation step (S400).

[0143] In the circuit layer attachment step (S100), a circuit layer (313) can be attached to the surface of a rotating drum (RD). The circuit layer (313) may be provided in the form of a flexible film comprising a plurality of pattern regions (313B) having a plurality of conductive patterns.

[0144] The challenge pattern included in each pattern area (313B) may include a first challenge pattern (313BA) and a second challenge pattern (313BB).

[0145] The first conductive pattern (313BA) may include a first conductive stem (313BA1) extended in one direction, and a plurality of first conductive branches (313BA2) extended from the first conductive stem (313BA1) in a direction intersecting the first conductive stem (313BA1).

[0146] The second conductive pattern (313BB) may include a second conductive stem (313BB1) extended in one direction, and a plurality of second conductive branches (313BB2) extended from the second conductive stem (313BB1) in a direction intersecting the second conductive stem (313BB1). Here, the second conductive stem (313BB1) may extend in a direction substantially parallel to the first conductive stem (313BA1), and the second conductive branches (313BB2) may extend in a direction toward the first conductive stem (313BA1). Additionally, the first conductive branches (313BA2) and the second conductive branches may be arranged alternately.

[0147] When the circuit layer (313) is attached to the rotating drum (RD), the separation layer forming step (S200) can be performed.

[0148] In the separation layer formation step (S200), a separation layer (315) can be formed on the surface of the circuit layer (313).

[0149] Here, the separation layer (315) may be formed using at least one of polydimethylsiloxane (PDMS), thermoplastic polyurethane (TPU), and epoxy by a spin coating method, an electrospinning method, and a roll-to-roll method. For example, the separation layer (315) may have the form of a fiber film formed by electrospinning thermoplastic polyurethane or epoxy.

[0150] The following describes in more detail how the separation layer (315) is formed using an electrospinning method.

[0151] First, a thermoplastic polyurethane or epoxy solution is injected into a syringe-shaped spinning device (ID).

[0152] The solution injected into the radiation device (ID) can be radiated through the nozzle (NZ) of the radiation device (ID) toward the circuit layer (313) attached to the rotating drum (RD).

[0153] The nozzle (NZ) and the rotating drum (RD) of the spinning device (ID) can be connected to a high-voltage power supply (PSD). The nozzle (NZ) of the spinning device (ID) connected to the high-voltage power supply (PSD) can charge the discharged solution by injecting an electric charge into it.

[0154] In addition, an electric field may be applied to the area between the nozzle (NZ) and the rotating drum (RD) of the radiation device (ID).

[0155] In this way, when a solution discharged through the nozzle (NZ) of the spinning device (ID) is charged and an electric field is applied to the region between the nozzle (NZ) of the spinning device (ID) and the rotating drum (RD), a continuous fiber having a fine diameter is deposited on the circuit layer (313), thereby forming a separation layer (315). Here, the diameter of the fiber may be tens of nm to hundreds of nm.

[0156] After the separation layer (315) is formed, the laminate on which the separation layer (315) is formed on the circuit layer (313) can be separated from the rotating drum (RD).

[0157] Then, a conductive layer formation step (S300) can be performed.

[0158] In the conductive layer formation step (S300), a conductive layer (311) can be formed on the separation layer (315). The conductive layer (311) can be provided in a form that is attached to the separation layer (315).

[0159] The conductive layer (311) may be made of a material that has a change in resistance according to pressure and has resilience. For example, the conductive layer (311) may be made of a pressure-sensitive nonwoven fabric in which the resistance of the pressure-applied area is lowered.

[0160] After the conductive layer (311) is formed, a protective layer formation step (S400) can be performed.

[0161] In the protective layer formation step (S400), a pressure sensing laminate (310) can be manufactured by forming a protective layer (317) on the lower surface of the circuit layer (313) and the upper surface of the conductive layer (311). Here, the lower surface of the circuit layer (313) and the upper surface of the conductive layer (311) may be the outer surface of the circuit layer (313) and the outer surface of the conductive layer (311). That is, the protective layer (317) is a layer exposed to the outside of the pressure sensing laminate (310) and can protect the internal conductive layer (311) and circuit layer (313).

[0162] Meanwhile, referring to FIGS. 15 and 16, it can be seen that the separation layer (315) formed on the circuit layer (313) is formed with a uniform thickness along the surface of the circuit layer (313). That is, the separation layer (315) may also have irregularities according to the irregularities formed by the first conductive pattern (313BA) and the second conductive pattern (313BB) of the circuit layer (313). Accordingly, as shown in FIG. 16, the separation layer (315) may be divided into a first region (315A) on the first conductive pattern (313BA) and the second conductive pattern (313BB), and a second region (315B) between the first conductive pattern (313BA) and the second conductive pattern (313BB).

[0163] Additionally, referring to FIGS. 17 and 18, it can be seen that the separation layer (315) forms a fiber membrane woven by electrospun fibers. In particular, the fibers spun by electrospinning may have multiple spaces between the fibers. Therefore, when pressure is applied, the separation layer (315) is compressed, and accordingly, the conductive layer (311) can come into contact with the first conductive pattern (313BA) and the second conductive pattern (313BB) of the pattern area (313B) through the spaces between the fibers of the separation layer (315).

[0164]

[0165] The embodiments according to the present invention described above may be implemented in the form of program instructions that can be executed through various computer components and recorded on a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, etc., either individually or in combination. The program instructions recorded on the computer-readable recording medium may be those specifically designed and configured for the present invention or those known and available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes; optical recording media such as CD-ROMs and DVDs; magneto-optical media such as floptical disks; and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, and flash memory. Examples of program instructions include machine code, such as that generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc. Hardware devices may be modified into one or more software modules to perform processing according to the present invention, and vice versa.

[0166] The present invention is not limited to the embodiments described above, and it is obvious that new embodiments may include a combination of at least two of the above embodiments or a combination of at least one of the above embodiments and known technology.

[0167] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention, and the invention is not limited thereto. It will be apparent that modifications or improvements can be made by those skilled in the art within the technical scope of the invention.

[0168] All simple variations or modifications of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims.

Claims

1. A pressure-sensing laminate for an exercise training device capable of detecting the pressure exerted by a player gripping a grip portion, A conductive layer having pressure sensitivity; A circuit layer disposed facing the conductive layer and having a plurality of conductive patterns; and It includes a separation layer disposed between the conductive layer and the circuit layer and formed of a fibrous tissue comprising a plurality of fibers, and A pressure-sensing laminate in which, when pressure is generated, the conductive layer and the circuit layer come into contact to detect the pressure.

2. In Paragraph 1, The above separation layer is a pressure-sensing laminate that has resilience and separates the conductive layer and the circuit layer.

3. In Paragraph 2, A pressure sensing laminate having a thickness of 0.01 mm to 0.02 mm of the separation layer.

4. In Paragraph 2, The above separation layer is a pressure sensing laminate formed using at least one selected from the group consisting of polydimethylsiloxane (PDMS), thermoplastic polyurethane (TPU), and epoxy.

5. In Paragraph 4, The above separation layer is a pressure sensing laminate formed using at least one selected from the group above, a spin coating method, an electrospinning method, and a roll-to-roll method.

6. In Paragraph 5, The above separation layer is a pressure-sensing laminate formed by electrospinning thermoplastic polyurethane or epoxy.

7. In Paragraph 2, The above conductive layer is a pressure-sensing laminate having a resistance that changes according to pressure and has recovery elasticity.

8. In Paragraph 7, The above conductive layer is a pressure-sensing laminate in which resistance is lowered by pressure.

9. In Paragraph 7, The above circuit layer is composed of a Flexible Printed Circuit Board (FPCB) including a plurality of pattern regions including a plurality of conductive patterns, and The above plurality of pattern regions are spaced apart from each other and form a pressure sensing laminate.

10. In Paragraph 9, The above plurality of challenge patterns includes a first challenge pattern and a second challenge pattern, and The first conductive pattern includes a first conductive stem extended in one direction, and a plurality of first conductive branches extended in a direction intersecting the first conductive stem. The second conductive pattern includes a second conductive stem extended parallel to the first conductive stem, and a plurality of second conductive branches extended in a direction intersecting the second conductive stem. The above first conductive branch and the above second conductive branch are arranged alternately in a pressure sensing laminate.

11. In Paragraph 10, A pressure sensing laminate in which, when pressure is generated, the conductive layer and the circuit layer come into contact, and the conductive layer electrically connects the first conductive pattern and the second conductive pattern.

12. In Paragraph 7, A pressure sensing laminate further comprising a protective layer disposed on the outer surface of the conductive layer and the circuit layer.

13. Circuit layer attachment step for attaching a circuit layer to a rotating drum; A separation layer forming step of forming a separation layer on the surface of the circuit layer; and The method includes a conductive layer forming step of forming a pressure-sensitive conductive layer on the above separation layer, and A method for manufacturing a pressure-sensing laminate in which the above separation layer is formed using at least one of polydimethylsiloxane (PDMS), thermoplastic polyurethane (TPU), and epoxy using a spin coating method, an electrospinning method, and a roll-to-roll method.

14. In Paragraph 13, The above electrospinning method A thermoplastic polyurethane or epoxy solution is injected into a syringe-shaped spinning device, and an electric field is applied between the spinning device and the rotating drum, A method for manufacturing a pressure-sensing laminate by connecting the nozzle of the above-mentioned radiation device to a high-voltage power supply device to inject charge into the discharged solution and charge it, while discharging the solution onto the surface of the circuit layer to form the separation layer.

15. In Paragraph 14, A method for manufacturing a pressure-sensing laminate comprising the step of further forming a protective layer on the outer surface of the conductive layer and the circuit layer.

16. A golf practice device comprising a shaft, a head portion provided on one side of the shaft, and a grip portion provided on the other side of the shaft to surround the outside of the shaft, It includes a pressure sensing laminate disposed between the shaft and the grip portion, which senses pressure applied to the grip portion and generates pressure data. The above pressure sensing laminate A conductive layer having pressure sensitivity; A circuit layer disposed facing the conductive layer and having a plurality of conductive patterns; and It includes a separation layer disposed between the conductive layer and the circuit layer and formed of a fibrous tissue comprising a plurality of fibers, and A golf practice device that detects pressure when pressure is generated, wherein the conductive layer and the circuit layer come into contact.

17. In Paragraph 16, A data processing module disposed within the shaft and processing the pressure data; and It further includes a capsule structure that mounts the data processing module in an internal space and places the data processing module inside the shaft. The above capsule structure is a golf practice device that places the data processing module in a position overlapping with the grip portion.

18. In Paragraph 17, The above capsule structure is A body part housing the above data processing module; and It includes a flange portion provided on one side of the above-mentioned body portion, and The above flange portion is exposed to the outside of the other side of the shaft, and A golf practice device having a power terminal for receiving power from the outside provided in the flange portion above.

19. In Paragraph 18, The above body part A first body having the internal space in which the above data processing module is installed; and A golf practice device comprising a second body combined with the first body to cover the internal space.

20. In Paragraph 18, A golf practice device further comprising a swing data collection unit that senses a golfer's swing and generates swing data.

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