We claim:
1. A method of providing a reel type cutting unit with grooved rollers having variable shoulder configurations, which comprises:
(a) providing a non-shouldered grooved roller on the reel type cutting unit; and
(b) selectively providing a shoulder on the grooved roller without removing the grooved roller from the reel type cutting unit.
2. The method of claim 1, wherein the shoulder installing step comprises selectively installing an annular groove insert in at least one groove on at least one end of the roller to provide a shoulder on at least one end of the roller.
3. The method of claim 2, wherein the shoulder installing step comprises selectively installing an annular groove insert in at least one groove on each end of the roller to provide a shoulder on each end of the roller.
4. A method of converting a non-shouldered grooved roller for a reel type cutting unit of a mower for mowing grass to a shouldered grooved roller, which comprises:
(a) providing a plurality of annular groove inserts, each insert being sized to substantially fill in one groove on the roller; and
(b) selectively installing a groove insert in at least one groove on at least one end of the roller to provide a shoulder on at least one end of the roller.
5. The method of claim 4, wherein the step of selectively installing comprises selectively installing a groove insert in at least a last groove on at least one end of the roller.
6. The method of claim 4, wherein the step of selectively installing comprises selectively installing a plurality of groove inserts in a plurality of adjacent grooves on at least one end of the roller.
7. The method of claim 6, wherein the step of selectively installing comprises selectively installing a plurality of groove inserts in a plurality of adjacent grooves on at least one end of the roller which plurality match an overlap area between staggered, overlapped cutting units.
8. The method of claim 4, wherein the step of providing a plurality of annular groove inserts comprises providing a plurality of annular collars formed of collar halves which are at least partially separable from one another and when so separated can be fit into and around one groove on the roller, the collar halves further including at least one attachment member for securing the collar halves together after the collar halves are fit into and around one groove of the roller, and wherein the step of selectively installing a groove insert comprises the steps of at least partially separating the collar halves, fitting the at least partially separated collar halves into and around one groove of the roller, closing the at least partially separated collar halves, and securing the collar halves together using the at least one attachment member.
9. The method of claim 8, wherein the collar halves are completely separable from each other to be disconnected from one another when separated, the collar halves being fit into one groove of the roller by placing the collar halves into opposite halves of the roller groove and moving the collar halves towards one another until the ends of the collar halves abut and mate with one another, and wherein the step of securing the collar halves together includes securing the abutting mating ends of the collar halves to one another using attachment members at the abutting mating ends.
10. The method of claim 9, wherein the attachment members comprise threaded attachment members.
11. The method of claim 4, wherein the step of selectively installing comprises selectively installing a groove insert in at least one groove on each end of the roller to provide a shoulder on each end of the roller.
12. Apparatus for converting a non-shouldered grooved roller for a reel type cutting unit of a mower for mowing grass to a shouldered grooved roller, which comprises:
a plurality of annular groove inserts, each insert being sized to substantially fill in one groove on the roller.
13. The apparatus of claim 12, wherein the groove inserts are configured to be received in the roller groove when the roller is mounted on the reel type cutting unit without removing the roller from the cutting unit.
14. The apparatus of claim 13, wherein the groove inserts comprise a plurality of annular collars formed of collar halves which are at least partially separable from one another and when so separated can be fit into and around one groove on the roller, and further including at least one attachment member for securing the collar halves together after the collar halves are fit into and around one groove of the roller.
15. The apparatus of claim 14, wherein the collar halves are entirely separate to be disconnected from one another when separated from one another, and further including two attachment members for securing the collar halves together with each attachment member passing through abutting ends of the collar halves when the collar halves are assembled together in the one roller groove.
16. The apparatus of claim 12, wherein each groove insert substantially fills in a roller groove by having an outer diameter that falls within the range of approximately 0.125 inches larger than to 0.250 inches smaller than an outer diameter of the roller.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A training device (1) for golf swings comprised of at least one guide ring (2, 3) arranged on a mounting in a plane extending inclined in relation to the vertical, characterized in that provision is made for two guide rings (2, 3) arranged approximately in the same plane, and recieved in a mounting device (4) at least partly spaced from one another, whereby the two guide rings (2, 3) have an approximately ellipsoidal shape and are provided for a golf club to contact said rings.
2. The training apparatus according to claim 1, wherein the two guide rings (2, 3) describe the shape and size of an ideal line for a golf swing.
3. The training apparatus according to claim 2, wherein the two guide rings (2, 3) are provided for a golf club (6) to contact said rings, said golf club being placeable on the two guide rings (2, 3) and guidable along the ideal line, whereby said golf club has to be in contact with the two guide rings (2, 3) in the ideal case.
4. The training apparatus according to claim 3, wherein the two guide ring (2, 3) describe an inner and an outer limit of a dynamic line for guiding a golf club, whereby an element (7) secured on the shaft of the golf club in the center of gravity of guidance is guidably formed between the two guide rings (2, 3).
5. The training apparatus according to claim 4, wherein the two guide rings (2, 3) are secured in a mounting device (4) in such a manner that the outwardly directed guiding surfaces are freely accessible over the entire circumference.
6. The training apparatus according to claim 5, wherein the two guide rings (2, 3) are otherwise mounted freely suspended at an angle of inclination relative to the horizontal corresponding with the angle of response (A) of the golf club (6).
7. The training apparatus according to claim 3, wherein a golf club (6) guided past the two guide rings (2, 3) leads to noticeable contact.
8. The training apparatus for golf swings according to claim 4, wherein the mounting device (4) consists of a pedestal arranged at an adjustable angle relative to the vertical with at least one standing foot (8), or has two independent standing feet (8) pivot-mounted for being loosely guided by a connecting element (9), or limited in their mobility by a chain.
9. The training apparatus for golf swings according to claim 8, wherein the guide rings (2, 3) and the mounting device (4) are detachably connected with one another, and particularly the mounting device (4) can be folded together andor the guide rings (2, 3) can be folded together via a hinge.
10. The training apparatus for golf swings according to claim 1, wherein a guide switch (20) is arranged on the guide rings (2, 3) for lifting off the golf club sliding past said guide rings from said guide rings (2, 3).
11. The training apparatus for golf swings according to claim 10, wherein the guide switch (20) has recesses (21, 22) for plugged mounting, and resets on a fastening bolt, on the one hand, and with a stop against at least one guide ring (2, 3) on the other.
12. The training apparatus for golf swings according to claim 11, wherein different mounting positions are available, preferably mirror-inverted, symmetrical mounting positions.
13. The training apparatus for golf swings according to claim 1, wherein the guide rings (2, 3) consist of T-profiles secured with their horizontal base on a support, said profiles guiding the golf club with the edge of the vertical base.
14. The training apparatus according to claim 1, wherein the guide rings (2, 3) consist of T-profiles secured with their vertical base on a support and guiding the golf club with the horizontal base.
15. The training apparatus for golf swings according to claim 14, wherein the surface of the guide rings (2, 3) touching the golf club as the latter is swinging, are provided with a polymer coating reducing the sliding friction.
16. The training apparatus for golf swings according to claim 15, wherein the outer guide ring (2, 3) has two symmetrically arranged, trough-like deepenings (27, 28) deviating from the ellipsoidal shape in the upper dead center.
17. The training apparatus for golf swings according to claim 1, wherein provision is made for a stop element (30) in the upper dead center of the guide rings (2, 3) said stop element being pivot-mounted and secured on a crossbar (31); and that the movement of the golf club, when swinging upwards, is limited by a stop (34) protruding into the plane of the guide ring (2, 3).
18. The training device for golf swings according to claim 17, wherein magnets (18) are arranged in the upper andor lower areas of the guide rings (2, 3), or in defined segmental areas, whereby the retaining force of said magnets has to be overcome as the golf club is being guided past said magnets.
19. The training apparatus for golf swings according to claim 18, wherein braking surfaces are formed between the guide rings (2, 3) at least in an upper andor lower area, said braking surfaces responding to the golf ball only, for example in the swinging direction, and consisting of slanted bristles or rubber lips.
20. The training apparatus according to claim 19, wherein the guide rings (2, 3) have a magnetic surface or are magnetizable or fitted with magnets (18), said magnets pulling a metallic or magnetic field-reinforced shaft of the golf club against the guide rings (2, 3).
21. The training apparatus for golf swings according to claim 20, wherein the indifferent zone of the magnetized guide rings (2, 3) is disposed in the plane set up by the guide rings (2, 3).
22. The training apparatus for golf swings according to claim 21, wherein the guide rings (2, 3) are equipped with sensors, sensor transmitters or electrical contact surfaces, for example conductor paths, on the side disposed perpendicularly to the normal of the plane, whereby the contact surfaces are divisible in individual sectors, and an electronic evaluation of the swing can be carried out.
23. The training apparatus for golf swings according to claim 3, wherein the golf club (6) is provided with an element (7) in the center of gravity of the club, said element preferably consisting of two semi-cups and a recess for the club shaft, and said two semi-cups being connectable with one another.
24. The training apparatus for golf swings according to claim 23, wherein the element (7) for the golf club (6) consists of one single piece and is adapted for plugging it over the golf club (6).
25. The training apparatus for golf swings according to claim 22, wherein the golf club (6) is fitted with sensors or sensor transmitters above and below the element (7).
26. The training apparatus for golf swings according to claim 9, wherein the mounting device (4) andor the guide rings (2, 3) are made of wood, a polymeric material, a composite material, or of metal.
27. The training apparatus for golf swings according to claim 26, wherein the guide rings (2, 3) consist of a tubular profile, a T-profile, an H-profile, an L-profile, a semi-cup profile, or an X-profile.