JPH0434852Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a golf putting practice table.

(Prior Art and its Problems) Conventionally, golf putting practice tables have been provided with holes formed at one end of artificial turf with a length of 2 to 3 meters. According to this, when practicing, it can be spread out in a hallway or the like, and when not practicing, it can be folded up so that it does not obstruct passage in the hallway or the like. However, on the other hand, the top surface of the artificial turf is flat and does not change, making it unsatisfactory for those aiming to improve their putting techniques.

Therefore, we stretched artificial turf inside the rectangular machine frame in plan view.
It has been considered to change the undulation of the artificial turf by moving the plates, cams, etc. that support the artificial turf using a motor or manually.

However, since this conventional practice table cannot be disassembled, it has become an obstruction in the hallway where it is placed, except when practicing. Furthermore, it was not possible to adjust the length according to the size of the installation location or the wishes of the person practicing.

(Purpose of the invention) In view of the above-mentioned conventional problems, the present invention can be easily assembled during practice, and can be disassembled when not practicing to prevent it from becoming an obstruction in the hallway where it is installed. To provide a golf putting practice table whose length can be adjusted as necessary and whose undulation of artificial grass can be freely changed.

(Means for Solving the Problems) In order to solve the above conventional problems, the present invention includes a crossbeam 2, which is arranged above and parallel to the crossbeam 2, and whose both ends are connected to the crossbeam 2. A support shaft 4 rotatably supported by bearings 3 at both ends, a plurality of cams 5 fixed to the support shaft 4 at intervals and always in contact with the upper surface of the crossbeam 2, A plurality of supports 1 having a handle 6 provided at one end are arranged in parallel at predetermined intervals, and a plurality of plates 7 with artificial grass 8 laid on the upper surface are placed on the cam 5 of each support 1. The side edges of each plate 7 are connected 13 to each other while being placed, and among the plates 7,
A golf ball hole 12 is formed in at least one plate, and the inclination of each plate 7 is adjusted by rotating the cam 5 using the handle 6.
A structure is adopted in which a locking means 17 is provided to prevent rotation of the handle 6 by engaging with the handle 6.

(Function) In the above configuration, during practice, after arranging the supports 1 in parallel at predetermined intervals, each plate 7
is placed on the cam 5 of each support 1, and the side edges of each plate 7 are connected 13 to each other, and the inclination of each plate 7 is adjusted by turning the handle 6 to rotate the cam 5. Subsequently, the locking means 17 prevents the handle 6 from rotating.

In such a situation, the person practicing should use Plate 7.
Get on top and use the putter to hit the golf ball to hole 1.
All you have to do is hit the second one.

And when practicing long putts, plate 7
The number of plates 7 can be increased to lengthen the putting practice table, and when practicing short putts, the number of plates 7 can be reduced to shorten the putting practice table.

When not practicing, each plate 7 can be removed from the support 1, and each support 1 can be put away so that it does not become an obstruction in a hallway or the like.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. Figure 1 is a plan view of the putting practice table, Figure 2
The drawings are side views, FIGS. 3 and 4 are longitudinal cross-sectional views, FIG. 5 is a front view, and FIG. 6 is a cross-sectional view.

In each of the above figures, 1 is placed on the floor at a predetermined interval (e.g.
The supports are arranged in parallel at intervals of 45 cm to 55 cm, and include a rectangular cylindrical cross beam 2 with a length of about 1.5 m, and are placed above and parallel to the cross beam 2, and both ends of the support are arranged parallel to each other. A support shaft 4 rotatably supported by bearings 3 at both ends of the girder 2; a plurality of cams 5 fixed to the support shaft 4 at intervals and brought into contact with the upper surface of the crossbeam 2; It consists of a handle 6 provided at one end of a support shaft 4.

7 is 75 cm wide and 1.5 cm tall with artificial grass 8 laid on the top surface.
It is a plurality of plates of about cm size and is placed on the cam of each of the above-mentioned supports. Each plate is made up of two plates, arranged in three rows in this embodiment, and a cam receiving metal fitting 9 shown in the perspective view of FIG. By engaging the groove 10 of the cam receiving fitting 9 with the upper part of the cam 5, each plate 7 is prevented from shifting. In addition, as shown in FIGS. 1, 3, and 4, the rear part of the cam receiving metal fitting 9 fixed to the rear part of each plate 7 is made to protrude rearward by a predetermined length l by the rear edge of each plate 7. The front edge of the plate 7 in the rear row is placed on the protruding portion and supported. As a result, the plate 7 in the front row at the left end of FIG. 1 needs to be supported by four supports 1, but the plates 7 in the second and subsequent rows are supported by three supports 1. Just do it. 11 is a reinforcing angle fixed to the back surface of each plate 7, and 12 is a golf ball hole, which in this embodiment is formed in the plates 7 in the front row and the third row. Note that the hole 12 only needs to be formed in at least one plate 7. Reference numeral 13 denotes a connector that connects the side edges of each plate 7, and in this embodiment, as shown in the perspective view of FIG. 13, a metal fitting 13b with a permanent magnet 13a fixed to one plate 7; A metal fitting 13c is fixed to the other plate 7. Then, by simply arranging the plates 7 on the cam 5 and bringing the side edges of the plates 7 into contact with each other, the metal fittings 13c are attracted to the permanent magnets 13a, and the plates 7 are connected to each other.

The cam 5 has a concentric circle portion 5a coaxial with the support shaft 4, as shown in the longitudinal section of the main part in _FIG . The height _H1 from the center to the center of the support shaft 4 is made to match. Therefore, even when the cam 5 is rotated in the direction of the arrow, the concentric circular portion 5a is always brought into contact with the upper surface of the crossbeam 2, and the weight of the person riding on the plate 7 is transferred to the crossbeam 2 via the cam 5. It is constructed so that it can be supported by The difference between the minimum radius R ₂ of the cam 5 and the radius R ₁ of the concentric circle portion 5a (R ₁ −R ₂ =H ₂ ) is approximately the maximum vertical movement amount of the plate 7.

As shown in the exploded perspective view of the main part of FIG. 9, the handle 6 is provided with a large number of holes 14 at regular intervals along the circumferential direction. Reference numeral 15 denotes a connecting rod used for the four supports 1 that support the plate 7 in the front row, and the cylindrical portions 1 at both ends of the connecting rod 15
5a loosely fitted to one end of each support shaft 4, and connecting rod 15
A locking pin 17 is inserted into the hole 14 of the handle 6 through the hole 16 of the handle 6, thereby preventing the handle 6 and the cam 5 from rotating. Therefore, even if a person stands on the plate 7, the plate 7 will not sink due to the person's weight. Note that the connecting rod 15 also has the function of setting the distance between the supports 1.

In the support 1 that supports the plates 7 in the second and third rows, a connecting rod 18 shown in FIG. 10 is used. That is, the cylindrical portions 18a provided at the center and both ends of the connecting rod 18 are loosely fitted to one end of each support shaft 4, and the holes 1 of the handle are inserted through the holes 19 of the connecting rods 18.
By inserting a lock pin 17 into the handle 6 and the cam 5, rotation of the handle 6 and the cam 5 is prevented.

The one shown in FIG. 11 is a spacing adjustment rod 20, and by engaging the arcuate portions 20a at both ends with the support shaft 4 as shown in FIGS. 1 and 4,
The supports 1 are made parallel to each other and the intervals between them are set at a predetermined value.

In the above configuration, when assembling the putting practice table, first the supports 1 are arranged on the floor at appropriate intervals, and then the arc portions 20 of the spacing adjustment rods 20
a to the support shaft 4 and connecting rods 15, 18.
The cylindrical portion 18a is fitted onto one end of each support shaft 4, thereby making each support 1 parallel to each other at a predetermined interval.

Next, when the inclination of each plate 7 is zero, as shown in FIGS. 3 and 4, the minimum radius portion of each cam 5 is placed at the top of that cam 5, and the lock pin 17 is connected to the connecting rod. 15, 18 holes 16, 19
through the hole 14 of each handle 6. As a result, the cam 5 is
becomes unable to rotate.

Next, each plate 7 is placed on the cam 5, and the metal fitting 13c is attracted to the permanent magnet 13a of the coupling device 13.
The plates 7 are connected to each other. As a result, a green with zero slope is formed as shown in FIG. 14a. A person practicing putting golf can simply stand on the golf ball and hit the golf ball toward hole 12.

At this time, if you slope the grain of the artificial turf,
When hitting from above the plate 7 in the front row, it is the regular order, and when hitting from above the plate 7 in the third row, it is the reverse order.

If you want to form a green with a constant slope overall, as shown in Figure 7,
The remaining cams 5, excluding the cam 5 of the rearmost supporter 1 on the right side in the figure, are rotated more as they move toward the front.
As a result, the height h ₂ at the left end of the green in the figure is higher than the height h ₁ at the right end of the green in the figure, and (h ₁ <
h ₂ ), when hitting from above plate 7 in the front row, the line is downward, and when hitting from above plate 7 in the third row, it is an upward line.

Furthermore, by appropriately adjusting the rotation angle of each cam 5, the undulations shown in b and c in FIG. 14 can be formed.

According to the above embodiment, three rows of two plates 7 are connected to form a green, but as shown in FIG. 15, one set of plates 7 and three supports 1 are added to form four rows. You may also do so. Furthermore, it is possible to create five or more rows in the same way, or, conversely, one row can be removed from three rows to create two rows. In short, depending on the size of the installation location and the content of practice,
The length can be adjusted freely.

(Effects of the invention) According to the invention, the cam of each support that supports the plate is always in contact with the upper surface of the crossbeam, and the weight of the practitioner riding on the plate is transferred to the crossbeam via the cam. Because it is supported, the plate does not deform, and you can practice putting putting from any position on the plate.

Furthermore, when starting to practice putting together, all that is required is to arrange the supports at appropriate intervals and then place the plate on each support, making it easy to assemble.

Furthermore, if you do not want to practice putting together, you can easily disassemble it by reversing the assembly procedure, and it is not bulky.

Furthermore, by increasing or decreasing the number of supports and plates, the length of the practice table can be adjusted as necessary, so you can freely change the distance of putting up or down for effective practice. can.

And of course, by simply operating the handle, the cam rotates as appropriate, allowing you to freely change the undulation of the artificial turf.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a putting practice table which is an embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a longitudinal sectional view of the same (the cross-sectional line is along the - line in Fig. 1), and Fig. 4 The figure is a longitudinal cross-sectional view of the same (the cross-sectional line is along the - line in Fig. 1), Fig. 5 is a front view of the same, and Fig. 6 is a cross-sectional view of the same (the cross-sectional line is along the - line of Fig. 1), Fig. 7 is a longitudinal cross-sectional view of each plate in a tilted state, Fig. 8 is a longitudinal cross-sectional view of the vicinity of the cam, Fig. 9 is an exploded perspective view of the vicinity of the handle, Fig. 10 is a perspective view of the connecting rod, Fig. 11 The figure is a perspective view of the spacing adjustment rod, Figure 12 is a perspective view of the cam receiver, Figure 13 is a perspective view of the connector, Figures 14 a to c are perspective views showing the shape of the green, and Figure 15 is the plate. It is a perspective view showing the shape of the green in a state where it is added. 1... Support, 2... Cross beam, 3... Bearing, 4...
...Spindle, 5...Cam, 6...Handle, 7...Plate, 8...Artificial grass, 13...Connector, 17...
...Lock pin (locking means).

Claims (1)

[Scope of utility model registration request] a crossbeam, a support shaft disposed above and parallel to the crossbeam and whose both ends are rotatably supported by bearings at both ends of the crossbeam; A plurality of supports each having a plurality of cams that are always in contact with the upper surface of the girder and a handle provided at one end of the support shaft are arranged in parallel at predetermined intervals, and artificial turf is laid on the upper surface. Placing the plates on the cams of each of the supports, connecting the side edges of the plates to each other, forming a hole for a golf ball in at least one of the plates, and rotating the cam with the handle. A golf putting practice table, characterized in that the plate is configured to adjust the degree of inclination of each plate, and is provided with a locking means for preventing rotation of the handle by engaging with the handle.