16 results about "Balance point" patented technology

A shoe may comprise an upper and a comfort sole attached to an outsole, the comfort sole having a radius of curvature at any point of a line from a heel to a toe and interfacing with outsole, wherein the lowest point of comfort sole and outsole, called the center of mass or balance point of the sole or natural balance point of the shoe, when placed on a substantially horizontal reference plane defines a transition zone of the roll of the foot having the highest radius of the comfort sole and the outsole, and in that the center of mass is behind point (B) of the metatarsals; and a rigid shell interposed between the upper and the comfort sole.

The utility model relates to the field of Pick rackets, in particular to a Pick racket with an adjustable balance point, which comprises a plate body and a handle, the plate body consists of a core material and a ball hitting racket surface adhered to the upper / lower surface of the core material, the outer side surface of the core material is coated with an edge covering strip, one end of the core material is provided with a connecting end for connecting the handle, and the other end of the core material is connected with the handle. The core material is internally provided with a through hole which is communicated and extends towards the connecting end along the central axis, the through hole is internally connected with a sleeve, the sleeve is internally connected with an adjustable adjusting part through an adjusting structure, the adjusting part can move and adjust towards the central axis of the core material in the axial direction of the sleeve, and the tail end, away from the core material, of the connecting end is detachably connected with an end cover in a sleeved mode. Through the arrangement of the adjusting structure, the balance point of the racket can be adjusted through the movement of the adjusting piece along the sleeve, the adaptability and the flexibility of the racket are improved, the individual requirements of different players for the balance feeling of the racket are met, meanwhile, the rigidity strength of the core material of the racket can be further enhanced through the sleeve, and the practicability and the using effect of the racket are enhanced.

A golf club for improving the training of young children is provided, comprising a grip, a shaft, and a head. The head is oversized, having a volume of about 1100 to about 1400 cubic centimeters. The ratio of the distance between the swing weight, the balance point of the club, and the grip butt portion to the overall length of the club, and / or the ratio of the overall mass of the club to the distance between the balance point of the club and the grip butt portion, are designed to improve the application for young children. A golf training system is also provided, comprising a golf club and a corresponding training glove.

According to the use method of the gravity center transfer trainer, the gravity center transfer trainer comprises a balance training plate, a shell, a left spring, a right spring and a balance pointer, the balance training plate is hinged to the shell, and the balance pointer is connected with the shell; during patient gravity center transfer training, a patient stands on the balance training plate, a doctor instructs the patient to train according to the condition of the patient, the gravity center transfer condition of the patient is visually displayed through the balance pointer, the patient visually views gravity center transfer data of the patient, and the patient can accurately train the gravity center transfer by observing whether the balance pointer is aligned with the middle zero balance point identifier or not. Whether the gravity center of the patient is on the rotation axis of the human body is determined, and the gravity center transfer training effect is improved. The defect that a patient and a doctor cannot visually see whether the gravity center of the patient is transferred to the central axis of the human body of the patient according to data of a weight scale is overcome, and the problem that gravity center transfer of the human body cannot be visually seen when the weight scale is used for gravity center transfer training is solved.

The application discloses a water sports multi-dimensional motion control method and device, comprising: identifying the periodic deviation of the rowing path according to the paddle handle rotation angular velocity, the trajectory curvature radius and the deviation angle; triggering the rotation radius determination reference update when the deviation angle exceeds the standard range to obtain the adjusted rotation radius determination reference; determining the balance point of the power stroke length extension and the arc trajectory curvature according to the adjusted rotation radius determination reference, and obtaining the paddle handle rotation radius set value corresponding to the balance point; evaluating whether the corresponding proportion of the direction deviation angle and the work stroke length meets the efficiency stable output requirement, identifying the real-time adjustment feedback of the rotation angular velocity after the improvement of the rower's body coordination, and obtaining the stable output level of the propulsion efficiency; and updating the monitoring period of the trajectory curvature radius according to the ship body posture sensing module to maintain the continuity of the holding stability, the power rhythm coherence and the trunk rotation amplitude at the optimal balance point.

The utility model discloses a gravity balance system and a balance car, the gravity balance system comprises a swing seat, a bearing seat and a swing mechanism connecting the swing seat and the bearing seat, the swing mechanism comprises a first gravity distribution rod and a second gravity distribution rod, the bottom of the first gravity distribution rod is connected with the swing seat, and the bottom of the second gravity distribution rod is connected with the bearing seat; a first rotating part is arranged at the top of the first gravity distribution rod and is higher than the swing seat, the bottom of the second gravity distribution rod is connected with the bearing seat, and a second rotating part is arranged at the top of the second gravity distribution rod and is higher than the bearing seat; the swing seat can swing relative to the bearing seat through the rotating connection of the first rotating piece and the second rotating piece. The gravity acceleration direction of the swing seat in the swing process is downward, so that the swing seat naturally tends to a balance point below the swing center in the swing process, the swing seat has high stability when swinging, and the phenomenon of rollover caused by deviation of the gravity center of the swing seat does not exist.

The present teachings generally include devices, systems, kits, and techniques for protecting pickleball paddles — e.g., the edges of pickleball paddles — for example, where such devices may be readily removable from the paddle, such as for exchanging a face of the paddle, weight adjustment, etc. The devices may protect the paddle and accessories installed thereon (e.g., a removable face or an edge guard), and may remain engaged with the paddle during play. The devices may also, or instead, be used to adjust any of the balance point, swing weight, twist weight, or static weight, and / or to customize the visual or tactile characteristics of a paddle. The device may include two rims that each engage continuously with a paddle, and a plurality of connectors that couple the two rims. A neck of the device may be flexibly or detachably coupled to accommodate a handle of a pickleball paddle.

The utility model relates to the technical field of badminton rackets, in particular to a double-sided wind breaking racket. A double-faced wind breaking racket comprises a racket frame with double-faced patterns and a grip connected with the racket frame, the racket frame is provided with a wind breaking racket frame face, a box type racket frame face and a buffer area which are formed in a one-time mode or a two-time mode, and the wind breaking racket frame face and the box type racket frame face are arranged on the two sides of the buffer area respectively. The section of the wind breaking racket frame face is in a peak shape protruding outwards, and the section of the box type racket frame face is in a rounded trapezoid shape protruding outwards. A double-face structure is arranged on the racket frame, one side of the racket frame is an attacking type wind breaking racket frame face, airflow can be well separated, wind resistance can be well reduced, and therefore the racket can be rapidly swung, the other side of the racket frame is a box type racket frame face, attack and defense can be considered due to the balance point arrangement of the racket frame face, a user can select the corresponding racket face according to actual needs, and the racket is convenient to use. And the battle performance is improved.

A shoe may comprise an upper and a comfort sole attached to an outsole, the comfort sole having a radius of curvature at any point of a line from a heel to a toe and interfacing with outsole, wherein the lowest point of comfort sole and outsole, called the center of mass or balance point of the sole or natural balance point of the shoe, when placed on a substantially horizontal reference plane defines a transition zone of the roll of the foot having the highest radius of the comfort sole and the outsole, and in that the center of mass is behind point (B) of the metatarsals; and a rigid shell interposed between the upper and the comfort sole.

The utility model relates to the technical related field of seesaws, in particular to a seesaw capable of adjusting balance, which comprises a support seat, a vertical rod, a balance component and an auxiliary component, the vertical rod is rotatably mounted on the support seat, seats are arranged at two ends of the vertical rod, cushions are arranged on the seats, handles are arranged at the front ends of the seats, and the balance component is mounted on the support seat. The balance assembly is arranged on the side face of the vertical rod, the auxiliary assembly is divided into two parts and fixed to the lower end of the vertical rod, the balance assembly comprises a scale sliding rail fixed to the side face of the vertical rod, a guide sliding block is installed on the scale sliding rail, a mounting frame is fixed to the lower end of the guide sliding block, and a balancing weight is fixed in the mounting frame. A limiting hole is formed in the side face of the guide sliding block in a penetrating mode, and a limiting bolt is connected into the limiting hole in a threaded mode, so that transverse movement adjustment of the balancing weight can be achieved, moment balance on the two sides can be conveniently adjusted, a moment balance point can be quickly found, the seesaw can be kept in a stable and comfortable state, and more requirements are met.

A golf club for improving training for young children includes a grip, a shaft and a clubhead. The clubhead is oversized with a volume from about 1100 cm3 to about 1400 cm3. A swing weight, a ratio of a distance between a club balance point and a butt portion of a grip to a total club length, and / or a ratio of a total club mass to a distance between a club balance point and a butt portion of the grip are determined for improving use by young children. A golf training system includes a golf club and a corresponding training glove.

The invention relates to a balance shaft (1) and to a method for producing a balance shaft. The balance shaft comprises an unbalanced shaft (2) having a bearing neck (7) and a bearing ring (12) fitted on the bearing neck, the inner side (15) of which is in contact with the bearing neck at its inner diameter Di-LR, the bearing neck having a relationship dHlt; the invention relates to a method for measuring the outer diameter dH of the envelope circle of the unbalanced shaft (1), Di-LR, comprising the following steps: i) aligning the unbalanced shaft with a shaft reference (17) such that a shaft reference point (18, 19) of the unbalanced shaft has a predetermined distance (20, 21) from the shaft reference; ii) measuring or checking a distance (22) between a shaft balance point (23) on the bearing neck and the shaft reference; iii) selecting the bearing rings from group classifications as a function of the measured or checked distance, the groups (G1, G2, G3) of the group classifications being classified as a function of mutually different inner diameters Di-LR of the bearing rings; and iv) assembling the bearing ring on the bearing neck.

The present teachings generally include devices, systems, kits, and techniques for protecting pickleball paddles — e.g., the edges of pickleball paddles — for example, where such devices may be readily removable from the paddle, such as for exchanging a face of the paddle, weight adjustment, etc. The devices may protect the paddle and accessories installed thereon (e.g., a removable face or an edge guard), and may remain engaged with the paddle during play. The devices may also, or instead, be used to adjust any of the balance point, swing weight, twist weight, or static weight, and / or to customize the visual or tactile characteristics of a paddle. The device may include two rims that each engage continuously with a paddle, and a plurality of connectors that couple the two rims. A neck of the device may be flexibly or detachably coupled to accommodate a handle of a pickleball paddle.

This invention discloses a robot balance control method and apparatus, relating to the field of robotics, to ensure the balance of a robot when performing multiple coordinated actions. This application separately calibrates the independent dynamic balance points for each independent action performed by the robot. Based on these independent dynamic balance points, a comprehensive dynamic balance point for the robot performing a composite action is determined. According to a set static balance point, it is determined whether the comprehensive dynamic balance point exceeds the range constrained by set balance limitations. If so, a compensation action is determined based on the difference between the comprehensive dynamic balance point and the static balance point. This compensation action is used to compensate for the imbalance at the comprehensive dynamic balance point, thereby balancing the robot. This application solves the imbalance problem when multiple independent actions are linked, and features strong scalability and a good user experience.

A seat, comprising a support (1) serving as a main body support of the seat, a backrest member (3) supporting the back of a human body, and a seat part (5) supporting the buttocks of the human body. The backrest member (3) is rotatably connected to the support (1), and the seat part (5) is also movably connected to the support (1) by means of rotary connection parts (4) and links (6). The seat part (5), the rotary connection parts (4), the links (6) and the support (1) constitute a four-link mechanism. The seat part (5) is driven to move by means of rotation of the backrest member (3) on the support (1), thereby achieving a seat-back linkage function, and the seat-back linage function enables the seat to have effects of preventing back rubbing and preventing loss of lumbar support. In order to avoid tipping, when the backrest member (3) tilts backwards, the seat part (5) moves forwards and upwards to maintain a balance point, such that the self-adaptive effect is always maintained in an optimal state.

This invention provides a novel badminton racket design, including an adjustable handle for shaft curvature and balance point, and a double-layered frame. The adjustable handle addresses the limitation of traditional badminton rackets in adjusting shaft stiffness and balance point, allowing users to fine-tune the racket to suitable parameters. The double-layered frame solves the problems of insufficient stability in traditional aerodynamic frames and slow swing speed in box-type frames.