[0001] This invention relates to a putting practice unit and in particular, although not
exclusively, to a putting practice unit for indoor use.
[0002] A known putting practice unit comprises a mat which is laid on a floor to enable
the golfer to practice his putting. Most floors are flat and level and do not permit
the golfer to practice puts which are other than on a flat and level surface and does
not allow variations in the putting surface According to the present invention a putting
practice unit includes a board and a number of board support means, the board having
a putting surface with an opening which in use, may receive a ball, the or each board
support means being arranged to extend between the board and the floor surface, the
board support means being adjustable whereby the orientation of the board relative
to the floor surface may be varied thereby varying the putting surface. With such
a putting unit, the putting surface may be varied to allow puts to be made on a surface
other than one which is flat and level, although of course, a putting surface which
is flat and level may be provided if required.
[0003] Preferably each board support means comprises an assembly including a board engaging
member and a leg pivotally mounted on the board engaging member. Pivotal adjustment
of the leg provides a convenient way of altering the height of that part of the board
with which the board engaging member engages. Advantageously the board engaging members
comprises a channel shaped member arranged to receive the edge of the board. Thus
the board engaging member may be readily attached and detached from the board. Advantageously
the sides of the channel shaped member are flexed away from each other when the channel
shaped member receives the edge of the board. Thus the channel shaped member may be
held in position on the board by the natural flexure of the sides of the channel shaped
member. Preferably, the edge of the board has indentations corresponding to the channel
shaped member to facilitate attachment of the channel shaped member on to the board
and provide an accurate location of the channel shaped member thereon. The board engaging
member and/or the leg may be moulded from plastics.
[0004] Advantageously the board may include at least two board sections. This facilitates
storage of the unit. Preferably at least one channel shaped member receives the edges
of the two board sections thus the channel shaped member can provide the necessary
rigidity between the two board sections. Preferably the putting surface is provided
by a flexible surface secured to and connecting the board sections whereby, although
the board includes at least two board sections, these can be folded together to provide
a compact structure for storage whilst still enabling the unit to provide a continuous
putting surface.
[0005] . Advantageously the unit includes a platform of substantially the same thickness
as the board which, in use, may be located adjacent to the board. The platform may
be wedge shaped. Accordingly a person using the unit may stand at the same height
and inclination as the putting surface.
[0006] The board, board sections or platform may include expanded polystyrene blocks to
provide a lightweight unit.
[0007] The putting surface may be provided by a flexible polypropylene mesh having attached
thereto a nylon based artificial grass surface. The artificial grass surface can be
brushed to alter the "nap" of the grass and may also be wetted to simulate conditions
likely to be found on a golf course.
[0008] The invention may be carried into practice in various ways but certain embodiments
will now be described by way of example and with reference to the accompanying drawings,
in which:-
Figure 1 is a perspective view of a putting practice unit affording a downwardly sloping
putting surface;
Figure 2 is a view similar to Figure 1 with an upwardly sloping putting surface;
Figure 3 is a partial view of a putting practice unit affording a downwardly sloping
putting surface;
Figures 4A and 4B are perspective views showing how a board engaging member of a board
support means is attached to the board of a putting practice unit;
Figure 5 is a perspective view of the central section of the putting practice unit
shown in Figures 1 and 2, and;
Figure 6 is a perspective view of the putting practice unit showing two board sections
in a partially collapsed postion.
[0009] As shown in Figures 1 and 2, the putting practice unit comprises a board 10 with
a putting surface 12. A person may stand on a platform 14, located adjacent to one
end of the board 10, and put his ball along the putting surface 12 towards an opening
or hole 16 in the other end of the board 10.
[0010] A number of board support assemblies 18 engage the edges of the board 10 with a channel
shaped member 20, each channel shaped member having a leg 22 pivotally connected thereto.
In Figure 1, the legs 22 of the assemblies 18 at the end of the board 10 adjacent
to the platform 14 are orientated such that that end of the board lies clear of a
floor surface 24. The legs of the support assemblies 18 located at either side of
the board at the centre of the board are inclined at approximately 45° to hold the
centre of the board away from the floor surface. The end of the board with the hole
16 is propped up just clear of the ground by a golf ball 26. Thus the board 10 is
inclined downwardly towards the hole 16. The platform 14 is also inclined downwardly
towards the hole 16 so that a person is able to stand at the same level and inclination
as the putting surfaceo The person may hit a succession of balls down the putting
surface, each ball passing through the hole 16 on to the floor surface 24 to make
way for the next ball. In Figure 2, the legs of the support assemblies 18 at either
side of the central reigon of the boa
2dare inclined at the same angle as the corresponding legs in Figure 1. A pair of support
assemblies are located towards the end of the board with the hole 16, and the legs
of these assemblies are almost vertical to hold that end of the board well clear of
the ground and provide an upwardly sloping putting surface. The platform 14 has been
reversed from the position shown in Figure 1 to give an upwardly sloping platform
at the same level and inclination as the putting surface. As shown in Figure 3, the
platform 28 is located on a platform 30 of uniform depth to bring the overall height
and inclination of the platform 14 to the same height and inclination as that of the
board 10.
[0011] As shown in Figures 4A and 4B, the board support assembly includes the channel shaped
member 20 which has an upper flange 32 and a lower flange 34 connected together by
a central plate 36. The lower flange 34 extends further in the direction away from
the central plate 36 than does the upper flange 32. The flanges 32 and 34 converge
slightly towards each other in the direction away from the plate 36 under their natural
flexure. When the channel shaped member is attached to the side of the boand 10 the
edges of the flanges are flexed outwardly as the channel shaped member is pushed over
the edge of the board so that they extend parallel to one another as shown in Figure
4B. The natural flexure of the flanges 32 and 34 urging them towards each other tends
to hold the channel shaped member on the side of the board. As shown in Figure 4A
and Figure 5 the board 10 is formed with recesses 38 on its upper and lower edges
to assist in attaching the assemblies on to the board and to accurately locate the
assemblies. The leg 22 is pivotally attached to the channel shaped member 20 by a
nut and bolt 40 which passes through a hole in the leg 20 and the plate 36 to frictionally
grip the leg to the member 20 and allow the leg to be held in the required position
under the weight of the board.
[0012] As shown in Figure 5, the board 10 is covered with an artificial grass surface 42
comprising a polypropylene mesh backing having a layer of nylon fibres 42. The backing
42 extends over the putting surface 12 and covers the adjoining sides of the board
10. The platform 14 is also covered with a polypropylene mesh backing having a layer
of nylon fibres.
[0013] As shown in Figures 5 and 6, the board 10 is formed from two board sections 44 which
are connected together by the backing 42. As the backing 42 is flexible, the putting
surfaces on the board sections 44 may be folded towards each other, as shown in Figure
6, about a hinge 46, to afford a shape convenient for storage. The length of the folded
structure is 1.2 metres. The hinge is reinforced by a backing tape 48, part of which
is shown in Figure 6.
[0014] If the board sections 44 were only connected by the flexible hinge 46 then, when
the board was in the position shown in Figure 1 or 2, the board would tend to collapse
about the central hinge. Accordingly a channel shaped member is arranged to extend
over the join between the board sections, the upper and lower flanges 32 and 34 and
the central plate 36 each assembly 18 providing the required rigidity across the hinge.
[0015] As shown in Figure 6, each end of the board 10 may have a hole 16, or indeed there
may be two holes 16 at one end of the board.
[0016] Although the drawings illustrate situations where the putting surface is either uphill
or downhill, it will be appreciated that by suitably adjusting the orientation of
the legs 22 on opposite sides of the board a putting surface which slopes from side
to side, with or without being inclined in the direction of the put, can be provided.
[0017] It will also be appreciated that although the putting surface shown in the drawings
is provided by a substantially planar surface, the board 10 could be made of a material
which allows flexure of the board to provide an undulating putting surface or indeed
any shaped putting surface that is likely to be encountered on a golf course.
[0018] The board 10 is made of expanded polystyrene to afford a lightweight unit. The legs
22 and the channel shaped members 20 are moulded from plastics.
1. A putting practice unit comprising a board (10) and a number of board support means
(18, 20, 22),the board (10) having a putting surface (12) with an opening (16) which,
in use, may receive a ball, the or each board support means being arranged to extend
between the board and a floor surface (24), the board support means (22) being adjustable
whereby the orientation of the board relative to a floor surface may be varied thereby
varying the putting surface.
2. A unit as claimed in Claim 1 in which each board support means comprises an assembly
including a board engaging member (20) and a leg (22) pivotally mounted on the board
engaging member.
3. A unit as claimed in Claim 2 in which each board engaging member comprises a channel
shaped member (20) arranged to receive the edge of the board.
4. A unit as claimed in Claim 3 in which the sides (32, 34) of the channel shaped
member (20) are flexed away from each other when the channel shaped member receives
the edge of the board.
5. A unit as claimed in Claim 3 or 4 in which the edge of the board has indentations
(38) corresponding to the shape of the channel shaped member.
6. A unit as claimed in any of Claims 2 to 5 in which the board engaging member and/or
the leg are moulded from plastics.
7. A unit as claimed in claim 3, 4 or 5 in which the board includes at least two board
sections (42) and at least one channel shaped member receives the edges of two board
sections.
8. A unit as claimed in Claim 7 in which the putting surface is provided by a flexible
surface (12) secured to and connecting the board sections.
9. A unit as claimed in any preceding claim including a platform (14) of substantially
the same thickness as the board and which may be wedge shaped, which, in use, may.be
located adjacent to the board.
10. A unit as claimed in any preceding claim.in which the putting surface (12) is
provided by a flexible polypropylene mesh having attached thereto a nylon based artificial
grass surface.