71results about How to "Improve ball control" patented technology

The present invention is directed to a golf club head with an improved striking surface. Grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio. Preferred values for these dimensions are provided. A golf club head having a variety of groove types and a set of golf clubs with grooves varying among the individual clubs of the set are also disclosed.

A lacrosse stick comprising a lacrosse head and a lacrosse handle. The head comprises a scoop removably attached to a throat. The scoop and the throat can be disassembled from one another to allow replacement of the individual components of the head. The head can comprise a throat, a scoop, and first and second sidewalls connecting the throat to the scoop. Each sidewall can include a top support spaced from a bottom support. A removable stanchion can be spaced between one of the top supports and one of the bottom supports. The scoop can include a molded first armature attached to a second molded armature wherein the second molded armature can be positioned substantially between the first molded armature and the throat. A handle can be integrally connected to the head. The throat can be molded with the handle such that the handle can be inseparable from the throat.

A bowling glove with which at least one supporting spacer for a bowling ball is associated or associable at the region interposed between the little finger, the index finger and the wrist.

The invention discloses the bottom plate of a bamboo and wood table tennis bat and a manufacturing method thereof, and the bottom plate and the manufacturing method relate to the technical field of sports supplies. The bottom plate of the bamboo and wood table tennis bat comprises a bat plate and a bat handle; the middle layer of the bat plate comprises more than two layers of planks; surface plate surfaces are spliced on the middle layer in a sticking way; and the surface plate layers are made of bamboo plates. The manufacturing method comprises the following steps: material selection, blanking, treatment, slicing, drying, sizing, hot pressing, drawing, cutting, finalizing and bat handle installation, and the bottom plate of the bamboo and wood table tennis bat is obtained. Compared with the prior art, the bottom plate of the bamboo and wood table tennis bat has high elasticity, so that the striking force is increased.

The invention discloses an iron ore powder pellet adhesive and an application thereof. Chemical components of the iron ore powder pellet adhesive comprise polyanionic celluloses, xanthan gum, sesbania gum and locust glue. An application of the iron ore powder pellet adhesive comprises the following steps: during preparing pellets, firstly preparing a mixture which comprises the iron ore powder pellet adhesive, sodium carbonate and bentonite, and then adding 0.9-1.1% of mixture to iron concentrate powder. After the components are mixed, the components can react with each other by using the synergistic effect of high-viscosity water-soluble macromolecules, so that the viscosity and the consistency are improved, the overall binding power is increased, and the overall using amount of the adhesive in the iron ore powder is reduced. The good pelleting index can be obtained under the condition that the adhesive only accounts for 0.009%-0.011% of the iron ore powder.

An improved golf putter is disclosed that is constructed having a head made from a lead glass material containing at least 24% lead oxide in its formulation. The lead glass material formulation is heated to a full melting point of about 2500° F. and maintained at such temperature to remove impurities and bubbles before being reduced to a working temperature range of 1500°-2000° F. While in the working range, the lead glass material is press molded into the desired shape of the putter head or otherwise formed into billets that are milled or machined using conventional glass cutting techniques. Upon formation of the desired shape, the body of the putter head is annealed to remove stress in the lead glass material and thereafter the exterior of the putter head is treated to mechanically strengthen the surface area and prevent chipping of the putter head. The resulting lead glass putter head exhibits a density between about 3.0 to 5.0 grams / cm3 and a Young's modulus between about 50 to 70 GPa that cause the putter head to impart high energy transfer to the ball upon impact with minimal vibration of the head for greater feel of the impact and consistency in putting. The lead glass putter head may be formed into a variety of configurations each adapted to affix to a conventional putter shaft.

A cue stick of the type used for playing billiards. A deflection resistant strengthening wrap is located adjacent a terminal end of the cue stick, and / or at other points on the cue stick that may experience deflection during a ball strike. A first strengthening wrap substantially prevents deflection of the tip piece upon impact with a billiard ball. Other strengthening wraps may be provided to prevent deflection at other locations on the cue stick. The strengthening wraps are composites formed of a screen, a sheet of material, and a resin. The screen is preferably metallic. The sheet of material is a plurality of fibers that form a fiber wrap of graphite, fiberglass, kevlar, or other material.

The invention relates to the field of physical training auxiliary tools and particularly relates to an auxiliary device for basketball dribbling training. The auxiliary device comprises a dummy pile and a driving box, the dummy pile is of a hollow tubular column structure and is vertically arranged, the lower end of the dummy pile is rotationally connected to the middle of the top wall of the driving box through a fixed shaft; a plurality of swing arms are arranged on the side wall of the dummy pile, a double-shaft motor is fixed to the end, located in the driving box, of the dummy pile, the double-shaft motor is in transmission connection with the swing arms, an air cylinder is fixed to the bottom of the inner side of the driving box, and a plurality of corrugated pipes are fixed to the peripheral wall of the driving box and communicated with the air cylinder. According to the auxiliary device for basketball dribbling training, the ball control capacity and the walking capacity of athletes during dribbling are improved, the whole device is in a multi-directional motion state, the predictability is greatly reduced, and therefore the rapid shifting capacity and the strain response capacity of the athletes are better improved in the dribbling and passerby training process of the athletes.

The present invention provides a field hockey stick having a substantially straight grip portion and a bowed hitting portion. In one embodiment, a stick has a substantially straight handle, a bowed throat, and a bowed head. In another embodiment, a stick has a substantially straight handle and a bowed throat, with at least a portion of the playing surface of the head in substantially the same plane or line as the front face of the handle. In another embodiment, a stick has a substantially straight handle and a bowed throat, with the playing surface of the head set back from the plane or line of the front face of the handle.

Monofilament string suited for use in tennis rackets and the like, consisting of a core material and a covering material that serves as a matrix, in which the core material is embedded in the covering material in accordance with the ‘island in the sea structure’ and that therefore contains island components and a sea component, whereby the island components largely but not exclusively consist of a thermoplastic polymer; are arranged in a geometrical and preferably symmetrical pattern relative to each other and / or the longitudinal axis of the string; and at least three of the island components have a cross-section that has a multi-angular shape, with one side leaning close against the surface of the string. The one side has a curvature that closely lines the curve of the string surface, and the sea component largely but not exclusively consists of a thermoplastic elastomer.

The invention discloses a dry land hockey stick and a manufacturing method of the dry land hockey stick. The dry land hockey stick comprises a ball hitting plate and a ball hitting rod connected with the ball hitting plate. The ball hitting plate comprises a filling plate, a coating layer arranged outside the filling plate and an abrasion resistant structure arranged on the lower portion of the coating layer. The cross section of the abrasion resistant structure is in a U shape with an upward opening. The upper portion of the abrasion resistant structure is embedded into the positions, on the two sides of the filling plate, of the lower portion of the coating layer, and the lower portion of the abrasion resistant structure is located outside the lower edge of the coating layer. The abrasion resistant structure is made of ultra-high molecular weight polyethylene materials. The dry land hockey stick has the advantages of being good in elasticity, light in overall weight, good in flexibility, high in ball controlling capacity, good in abrasion resistance and sliding performance, small in deformation, high in durability, long in service life and high in ball hitting speed, and the ball hitting plate is not prone to being bent, deformed or cracked.

Systems, devices and methods for teaching a basketball dribbler to have optimal control over the basketball, especially when transitioning from one dribble / move to the another, by establishing continuity that demands that the ball has to be back at a certain place at a certain time. The dribbler identifies and maintains a consistent organized rhythm, according to a consistent beat while executing particular dribbling basketball movements. The consistent beat may be a consistent tick or flash (audio and / or visual) at a number of different tempos.

The present invention provides a field hockey stick having a substantially straight grip portion and a bowed hitting portion. In one embodiment, a stick has a substantially straight handle, a bowed throat, and a bowed head. In another embodiment, a stick has a substantially straight handle and a bowed throat, with at least a portion of the playing surface of the head in substantially the same plane or line as the front face of the handle. In another embodiment, a stick has a substantially straight handle and a bowed throat, with the playing surface of the head set back from the plane or line of the front face of the handle.

The invention relates to a sticky football which is formed by conglutinating a ball casing and compound football outer sheath according to football arrangement. The production method employed by the invention is that a line is entwisted around a bladder that is wrapped by rubber sheets and becomes the ball casing after going through sulfuration; then leather and EVA materials are conglutinated by gluewater and pressed into the pentagonal and hexagonal compound football outer sheath; the complete football is formed by conglutinating the ball casing and compound the football outer sheath gluewater. The sticky football is characterized by good waterproof property, good air tightness and good impact resistance, thus having good sensation in the feet and good ball control when in use and allows athletes to give full play to technical potential.

The invention discloses a playing ball and a manufacturing method thereof, relates to indoor soccer and or other balls in indoor sports, and aims to reduce elasticity of balls. The technical scheme is that: specially processed fillers are appropriately filled in a ball bag, then the ball bag is sealed, a plurality of knitted reinforcement objects are adhered to the ball bag, and a plurality of polygonal skin slices are adhered to the outer surface of the knitted reinforcement objects. In the playing ball, the ball bag is prevented from being separated from the outer skin, the service life of the ball is prevented, the uniformity of the ball is guaranteed and production efficiency is improved.

The invention discloses a teaching device for basketball training. The device comprises a ball frame, an elastic retractable rod, a double-axis extension motor, a first adjustable retractable device,a base and a second adjustable retractable device. The first adjustable retractable device is fixedly installed on the base, a rotation ring is installed on the lower portion of the first adjustable retractable device, and an elastic rope is connected to the outer side of the rotation ring; an ankle lantern ring is connected to the other end of the elastic rope, a transmission and the double-axisextension motor are fixedly installed at the upper end of the first adjustable retractable device, and the elastic retractable rod is fixedly installed at the end of an output shaft of the transmission; the ball frame is fixedly installed at the end of the elastic retractable rod, a braking plate is installed on a rear output shaft of the double-axis extension motor, the second adjustable retractable device is further fixedly installed on the first adjustable retractable device, and a limit block capable of braking the braking plate is installed at the upper end of the second adjustable retractable device. The teaching device for basketball training is novel in structure, reasonable in design and convenient to control and use, and the technical level of basketball is effectively increased.

The invention discloses a manufacturing method of a battledore frame. The method comprises the steps that a non-woven fabric which is coated with a mixture on the front side and the reverse side is rolled into an elongate solid body, and the elongate solid body is wrapped by a yarn sheet used for wrapping to obtain a battledore frame preform; thus the battledore frame disclosed by the invention is solid, epoxy resin flows and is solidified in the process of forming, and foam materials are expanded and shaped in the process of forming, so that the non-woven fabric, glass fibers or carbon fiber cloth, the epoxy resin and the foam materials are steadily bonded together; the battledore frame has the characteristics that shock absorbing performance is good, no shock pain happens on the arm when a shuttlecock is hit, and the shuttlecock-control ability is strong; the hand feel is good, and the shuttlecock speed is fast; the battledore frame is not easy to damage, and the service life is long; and the interior of the battledore frame does not make noise when the shuttlecock is hit.

The invention discloses a dry land hockey ball hitting plate and a manufacturing method of the dry land hockey ball hitting plate. The dry land hockey ball hitting plate is characterized in that the problems in the abrasion resistance and the sliding performance after ice hockey is switched into land hockey are solved through the selection of ultra-high molecular weight PE materials, and the hockey can be widely popularized on the land. The dry land hockey ball hitting plate has the advantages of being good in elasticity, light in overall weight, good in flexibility, high in ball controlling capacity, good in abrasion resistance and sliding performance, small in deformation, high in durability, not prone to being bent, deformed or cracked, long in service life and high in ball hitting speed.

A multifunctional and automatic ball delivery device for a wellhead comprises a base body, wherein a rotating disc is arranged at the upper part of the base body, a ratchet wheel is arranged at the center of the rotating disc, holes for accommodating steel balls are formed in the rotating disc and surround the ratchet wheel, a guide pipe is arranged on the base body, the rotating disc can align one hole to the guide pipe through rotation, a channel is formed in the bottom of the base body, the bottom of the guide pipe is communicated with the channel, the rotating disc drives the steel balls to rotate, a solid part without a hole in the rotating disc is aligned to the steel ball channel in the base body, the steel balls are put in seven holes in the rotating disc sequentially from small to large in the clockwise direction, when a hydraulic cylinder drives a push rod to move to the ratchet wheel, a positioning pin is rotated out of a positioning hole in the rotating disc, a piston rod continuously moves rightwards, a push rod pushes the ratchet wheel to rotate by 45 degrees, the holes with the steel balls in the rotating disc are aligned to the channel in the base body, and the steel balls freely fall into a well through the guide pipe. The multifunctional and automatic ball delivery device has high working efficiency and can perform multi-section fracturing.

The present invention relates to a driving face of golf club head and its making method. Said method includes the following steps: mixing metal powder and adhesive to form a mixture, making said mixture be formed in a driving face die so as to form a primary blank of driving face, heating said primary blank to the sintering temperature of metal powder so as to form a driving face, finally, stamping said driving face to increase its strength.

The invention discloses a stainless steel alloy for a golf ball head. The stainless steel alloy for the golf ball head is characterized by comprising the following components in weight percentages: 1-2% of manganese, 1-2% of silicon, less than 0.08% of carbon, 6-8% of nickel, 16-18% of chromium, 2-4% of copper, more than 0.2% of nitrogen, and the balance of iron. Hardness HRB (Rockwell hardness B-grade scale) value of the stainless steel alloy consisting of the components is 70-80. The stainless steel alloy is one type of stainless steel, is good in abrasive resistance, and has a better shocking-proof performance when being struck than stainless steel #304 or low carbon steel #8620, and the harness is HRB70-80. When struck at the same time, a golf ball and the ball head face have long contact time, the ball control performance is good, and the stainless steel alloy is applicable to a pull rod, an iron rod and a wedge. The stainless steel alloy has good hardness and abrasive resistance, the ball head is not easily deformed, and a groove of the ball face is difficult to abrade, so that the stainless steel alloy is an excellent golf ball head material.

The invention discloses a manufacturing method of a full piece type icy hockey stick strike board. The manufacturing method comprises steps as follows: an epoxy resin foaming board is cut into a strip-type board; the strip-type board is placed into a baking box and baked at a certain temperature for certain time to remove humidity; the strip-type board is taken out of the baking box and accurately cut into a full piece type strike board shape by a tool to form a full piece type strike board body; the full piece type strike board body is placed into the baking box and baked at a certain temperature for certain time to remove humidity; the full piece type strike board body is taken out of the baking box, placed into a groove with the same radian as a formed strike board and pressed by a pressing tool; the full piece type strike board body is taken out of the groove; and the front side and the back side of the full piece type strike board body are coated with carbon fiber or glass fiber yarn. The full piece type icy hockey stick strike board manufactured with the method has the characteristics of striking resistance, flexibility, good ball control performance, low possibility of breakage and long service life.

Disclosed is a shoe including an upper for receiving a foot and a sole unit with a heel region and forefoot region, wherein an additional weight is arranged in at least one of the forefoot region and the heel region of the sole unit to stabilize the foot against at least one torque acting on a wearer's foot.