# US 5,700,203 A · Golf training device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,700,203 A - Document ID: US5700203A - Status: Granted - Kind: A - Application number: 08/761,524 - Filed: 1996-12-06 - Granted: 1997-12-23 - Earliest claimed: 1996-12-06 - Inventors: Frank Shieh - Web page: https://patentgrep.com/patent/US5700203A ## CPC - A63B 69/0091: {Balls fixed to a movable, tiltable or flexible arm} - A63B 69/3623: {for driving (A63B69/3608, A63B69/3658, A63B69/3661, A63B69/3667 and A63B69/3691 take precedence)} - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A golf training device includes base pad on which an anchoring base is fixed. The anchoring base has a primary column and a secondary column extending upright therefrom and each defining therein a bore. An L-shaped support has a first section movably received within the bore of the primary column and a second section extending transversely from the first section to define a cantilever. A secondary support bar extends from the second section of the L-shaped support to be movably received within the bore of the secondary column. A dummy ball assembly includes a spherical member and two suspension rods having lower ends connected to and extending from the spherical member in a diverging manner to upper ends to define a V shape. A tubular member connects between the upper ends of the suspension rods. The tubular member has a central bore to slidably fit onto the second section of the L-shaped support so as to rotatably suspend the spherical member under the second section of the support and to allow relative moment of the dummy ball assembly with respect to the support by means of bearing. A helical spring is fit onto the second section and located between each of the suspension rods and a fixed portion of the second section in an un-loaded condition for counteracting a component of an external force applied thereon along a direction parallel with the second section. ## Claims ### Claim 1 A golf training device comprising an anchoring base having a primary column extending upright therefrom and having an axially extending first bore, a support comprising a first section having a lower end movably received within the first bore of the primary column and an upper end extending a distance out of the first bore and a second section extending transversely from the upper end of the first section to define a cantilever configuration and a dummy ball assembly comprising a spherical member and two spaced suspension rods having lower ends connected to and extending from the spherical member in an inclined, diverging manner to upper ends that are spaced from each other with a tubular member connecting between the upper ends, the tubular member having a central bore to slidably fit onto the second section of the support so as to rotatably suspend the spherical member under the second section of the support and to allow relative moment of the dummy ball assembly with respect to the support, each of the suspension rods having biasing means associated therewith for counteracting a component of an external force applied to the spherical member along a direction parallel with the second section. ### Claim 2 (depends on 1) The golf training device as claimed in claim 1, wherein a transverse reinforcing bar is connected between the two suspension rods. ### Claim 3 (depends on 1) The golf training device as claimed in claim 1, wherein the tubular member of the dummy ball assembly that connects between the upper ends of the suspension rods comprises bearing means disposed therein to bear the relative moment of the dummy ball assembly with respect to the support. ### Claim 4 (depends on 1) The golf training device as claimed in claim 1, wherein biasing means comprises a first helical spring fit over the second section and located between the upper end of a first one of the suspension rods and a shoulder formed on the second section of the support and a second helical spring fit over the second section and located between the upper end of a second one of the suspension rods and an end fastener mounted on a free end of the second section of the support. ### Claim 5 (depends on 4) The golf training device as claimed in claim 4, wherein the second section of the support comprises a reduced free end section so as to define the shoulder therebetween. ### Claim 6 (depends on 4) The golf training device as claimed in claim 4, wherein the second section of the support comprises a threading formed on the free end thereof and the end fastener comprises a nut threadingly engaging the threading of the second section. ### Claim 7 (depends on 4) The golf training device as claimed in claim 4, wherein the dummy ball assembly is mounted to the second section of the support so that a first distance exists between the shoulder and the upper end of the first suspension rod which is substantially equal to an un-loaded length of the first helical spring and a second distance exists between the end fastener and the upper end of the second suspension rod which is substantially equal to an unloaded length of the second helical spring so that the dummy ball assembly is substantially not loaded on the support. ### Claim 8 (depends on 1) The golf training device as claimed in claim 1, wherein each of the suspension rods comprises a reinforcing rib formed on each of two opposite sides thereof to reinforce the connection of the suspension rod to the spherical member. ### Claim 9 (depends on 1) The golf training device as claimed in claim 1, wherein anchoring base comprises a secondary column extending upright therefrom to be substantially parallel with the primary column and having a second bore and wherein the support comprises a secondary support bar having an upper end connected to the support and a lower end movably receivable within the second bore of the secondary column. ### Claim 10 (depends on 1) The golf training device as claimed in claim 1, wherein the primary column comprises positioning means which is releasably engageable with the first section of the support so as to position the first section relative to the primary column to adjust the distance of the upper end of the first section of the support from the primary column. ### Claim 11 (depends on 10) The golf training device as claimed in claim 10, wherein the positioning means comprises a bolt extending through a transverse hole formed on the first section of the support with a first end of the bolt extending out of the primary column through an elongated slot formed on the primary column and a second end of the bolt extending in an opposite direction out of the primary column through a second slot formed on the primary column to engage a nut, the second slot having an expanded hole formed on an upper end and an lower end of the second slot and sized to receive the nut therein, a biasing spring is disposed between the bolt and the primary column to bias the nut into one of the upper and lower expanded holes so as to selectively position the first section of the support at a position corresponding to one of the upper and lower expanded holes.