Golf cup bottom adjustment tool

Abstract

To provide a bottom surface adjuster for a golf cup used for forming a false bottom on a cup of a golf, the bottom surface adjuster capable of acquiring a preferable sound as a sound when cup-in of the golf ball occurs, or acquiring a sound similar to a preferable cup-in sound.SOLUTION: A bottom surface adjuster 10 for a golf cup used for forming a false bottom on a cup 3 of a golf comprises: a resin support member 11 which is installed in the cup 3; and a metal bottom surface member 12 which is a member supported to an upper side thereof by the support member 11 in the cup 3 and has a bottom surface part 41 forming a cup bottom surface after forming the false bottom. The support member 11 is configured to support the bottom surface member 12 at a plurality of positions separated each other on a peripheral side of the bottom surface member 12 in view from a top side.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a golf cup bottom adjuster used to provide a raised bottom to a golf cup. [Background technology]

[0002] In 2019, golf rules were revised to allow putting with the flagstick standing. However, when removing a golf ball from the cup, the gap for the hand is small, and the hand may hit the edge of the cup, damaging the grass and soil around the edge of the cup. This damage may cause unevenness around the cup, which may interfere with play.

[0003] Patent Document 1 describes an invention intended to solve such problems, a golf hole cup that allows a golf ball that has been holed with the flagstick upright to be manually, easily, and stably released onto the putting green. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-141734 A Summary of the Invention [Problem to be solved by the invention]

[0005] In order to solve the above-mentioned problems, some golf courses have begun to install polystyrene foam or the like inside the cup to create a raised bottom. However, when a golf ball goes into the cup, a good sound that is normally heard by golfers is not produced, but the raised bottom prevents this sound from being produced.

[0006] The present invention has been made in consideration of the above circumstances, and aims to provide a golf cup bottom adjustment device used to create a raised bottom for golf cups that produces a good sound when a golf ball goes into the cup (hereinafter referred to as the "cup-in sound"), or a sound that is close to a good cup-in sound. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the first invention is a golf cup bottom adjustment device that has a hole for a flagstick and is used to raise the bottom of a golf cup, comprising: a resin support member that is installed within the cup; and a metal bottom member that is supported above it by the support member within the cup and has a bottom portion that constitutes the bottom of the cup after the raised bottom is applied, and the support member is configured to support the bottom member at multiple spaced apart locations on the outer periphery of the bottom member when viewed from above.

[0008] The second invention is the first invention, in which the support member has a plurality of mounting portions for supporting the bottom member at a plurality of locations, and a plate-shaped portion that is integrated with the plurality of mounting portions and placed on the original bottom surface, which is the bottom surface of the cup before the bottom is raised, and the plate-shaped portion is provided with the following configurations for reducing the contact area with the original bottom surface: (i) a notch or through hole that exposes the outer periphery of the original bottom surface when viewed from above, (ii) a notch extending outward from the through hole formed in the plate-shaped portion to pass a flagpole through, or (iii) a convex portion or concave portion formed on the underside of the plate-shaped portion.

[0009] The third invention is the first invention, in which the support member has a plurality of mounting portions for supporting the bottom member at multiple locations, and a plate-shaped portion integrated with the plurality of mounting portions and placed on the original bottom surface, which is the bottom surface of the cup before the bottom is raised, and in the support member, the plurality of mounting portions support the bottom member at a position outer than the outer periphery of the original bottom surface when viewed from above.

[0010] The fourth invention is the third invention, wherein the plate-shaped portion of the support member has an inner portion that is entirely located inside the outer periphery of the original bottom surface when viewed from above, and a plurality of outer periphery side connection portions extending from the outer periphery of the inner portion toward the multiple mounting portions.

[0011] A fifth invention is any one of the first to fourth inventions, wherein the bottom member further has a side portion integrated with the bottom portion and extending downward from the bottom portion, and the outer end portion of the bottom portion and the upper end portion of the side portion are joined with their inclined surfaces butted against each other.

[0012] A sixth aspect of the present invention is any one of the first to fifth aspects of the present invention, further comprising a height adjustment portion for adjusting the height of the bottom surface member relative to the support member.

[0013] The seventh invention is the sixth invention, wherein the bottom member further has a side portion that is integrated with the bottom portion and extends downward from the bottom portion, and a mounting portion is provided at the lower end of the side portion of the bottom member to which a plurality of mounting portions for supporting the bottom member at multiple locations are attached, the mounting portion consisting of a plurality of portions corresponding to the plurality of mounting portions, and the side portion of the bottom member is provided with a plurality of sets of mounting portions having different heights to the bottom portion as height adjustment portions.

[0014] According to an eighth aspect of the present invention, in any one of the first to seventh aspects of the present invention, the inclination of the bottom surface member relative to the support member is adjustable.

[0015] A ninth invention is based on the eighth invention, in which the support member has a plurality of mounting portions for supporting the bottom member at a plurality of points, and at least one of the plurality of mounting portions is arranged to be movable in the vertical direction. Effect of the Invention

[0016] In the present invention, a resin support member supports a plurality of mutually spaced apart points on the outer periphery of a metal bottom member when viewed from above. Here, when the inventor of the present application conducted a test using a prototype, when the outer periphery of the bottom member was supported over the entire circumference, the cup-in sound was low and a good cup-in sound was not obtained. In comparison with this case, when the outer periphery of the bottom member was supported at a plurality of mutually spaced apart points, the cup-in sound was high and approached a good cup-in sound. According to the present invention, a bottom adjuster that can obtain a good cup-in sound or a sound close to a good cup-in sound can be provided. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a cross-sectional view of a bottom surface adjuster for a golf cup according to an embodiment, placed in the cup. [Diagram 2] FIG. 2 is a perspective view of the bottom member attached to the support member. [Diagram 3] FIG. 3 is a perspective view of the support member with the bottom member removed. [Figure 4] 4(a) is a top view of the support member, FIG. 4(b) is a side view of the support member, and FIG. 4(c) is a cross-sectional view taken along line AA of FIG. 4(a). [Diagram 5] 5(a) is a top view of the bottom member, FIG. 5(b) is a side view of the bottom member, and FIG. 5(c) is a cross-sectional view taken along line BB of FIG. 5(a). [Figure 6] FIG. 6 is a cross-sectional view showing another shape of the joint between the outer end of the bottom part and the upper end of the side part in the bottom member. [Figure 7] FIG. 7 is a perspective view of a support member of a bottom surface adjuster for a golf cup according to the second embodiment. [Figure 8] FIG. 8 is a perspective view of a bottom adjuster for a golf cup according to Comparative Example 1. FIG. [Figure 9] FIG. 9 is a cross-sectional view of a golf cup bottom adjuster according to another modified example placed in the cup. [Figure 10]FIG. 10(a) is a top view of a support member of a bottom surface adjuster according to another modified example, FIG. 10(b) is a side view of the support member, and FIG. 10(c) is a cross-sectional view taken along line CC of FIG. 10(a). [Figure 11] FIG. 11(a) is a perspective view of a main body portion of a support member of a bottom surface adjuster according to a modified example of the embodiment, and FIG. 11(b) is a perspective view of an adjustment member. [Figure 12] Figure 12(a) is an oblique view of the state in which an adjustment member is attached to the main body of a support member of a bottom adjustment device in a modified embodiment, Figure 12(b) is an oblique view after the height position of the adjustment member has been adjusted upward from Figure 12(a), and Figure 12(c) is a side view of the state in which a bottom member is attached to the support member of Figure 12(b). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the following embodiment is merely an example of the present invention, and is not intended to limit the scope of the present invention, its applications, or its uses.

[0019] [1. About the configuration of the bottom adjustment tool for golf cups] The golf cup bottom adjuster (hereinafter referred to as "bottom adjuster") 10 is installed inside a golf cup 3 that is made using a hole cup 5 in order to raise the bottom of the cup 3. The bottom adjuster 10 is provided with insertion holes 31a, 41a for the flagpole 1, allowing the flagpole 1 to stand in a raised bottom state. Below, the hole cup 5 will be explained first, followed by an explanation of the bottom adjuster 10.

[0020] 1, the hole cup 5 includes a cylindrical cup body 6 with a bottom, a columnar part 7 erected in the center of the bottom surface of the cup body 6, and a sound plate 8 fixed to the top of the columnar part 7. A drainage hole 6a is formed in the bottom surface of the cup body 6.

[0021] The columnar portion 7 is formed in a cylindrical shape. The upper end of the columnar portion 7 is open, and the inside of the columnar portion 7 serves as an installation hole for the flagpole 1. The columnar portion 7 supports the flagpole 1 inserted from the opening at the upper end.

[0022] The sounding plate 8 is a metal member. The sounding plate 8 is an integrated member of a disk portion 8a, which becomes the bottom surface (original bottom surface) of the cup 3 before the bottom is raised, and a cylindrical portion 8b, which extends downward from the outer periphery of the disk portion 8a. When a golf ball goes into the cup 3 and hits the disk portion 8a, a metallic sound is generated that is easily heard by golfers.

[0023] The outer diameter of the cylindrical portion 8b is smaller than the inner diameter of the cup body 6. In the hole cup 5, there is a gap of about 0.5 cm to 1 cm between the inner surface of the cup body 6 and the outer surface of the cylindrical portion 8b.

[0024] As shown in Figs. 1 and 2, the bottom surface adjuster 10 includes a resin (plastic) support member 11 that is installed in the cup 3, and a metal bottom surface member 12 that is supported by the support member 11 on its upper side. The support member 11 has a plurality of mounting portions 22 that are attached to the bottom surface member 12 so as to support a plurality of locations spaced apart from each other on the outer periphery side of the bottom surface member 12 when viewed from above. The bottom surface member 12 is detachable from the support member 11. The bottom surface member 12 is attached to the support member 11 by being sandwiched between the mounting portions 22 of the support member 11. The support member 11 and the bottom surface member 12 can be inserted and removed from the cup 3 in an integrated state (as shown in Fig. 2). In addition, the bottom surface member 12 can be removed from the support member 11 by pulling the bottom surface member 12 upward, as shown in Fig. 3. Details of each part will be described below.

[0025] As shown in Figs. 1, 3 and 4, the support member 11 is an integrated member including a plate-shaped portion 21 placed on the disk portion 8a of the sound plate 8, a plurality of mounting portions 22 (three mounting portions 22 in this embodiment) for mounting the bottom surface member 12 to the support member 11, and a cylindrical lower portion 23 for holding the support member 11 on the sound plate 8. In the support member 11, the plurality of mounting portions 22 are arranged at equal angular intervals at positions outside the outer periphery X of the disk portion 8a (two-dot chain line in Fig. 4(a)) when viewed from above. Note that the rounded portion (R portion) at the boundary between the disk portion 8a and the cylindrical portion 8b of the sound plate 8 shown in Fig. 1 is not included in the disk portion 8a. The disk portion 8a is composed only of a portion whose upper surface is flat. The outer periphery X of the disk portion 8a is the outer periphery of the flat portion.

[0026] As shown in FIG. 4(a), the plate-like portion 21 has an inner portion 31 whose entirety is located inside the outer periphery X of the disk portion 8a in a top view, and a plurality of outer periphery side connecting portions 32 (three outer periphery side connecting portions 32 in this embodiment) extending from the outer periphery of the inner portion 31 toward the plurality of mounting portions 22. The inner portion 31 is formed in an annular shape. The flagpole 1 can be inserted into the insertion hole 31a in the center of the inner portion 31. The insertion hole 31a has three small, approximately rectangular notches. Each outer periphery side connecting portion 32 extends radially up to just above the cylindrical lower portion 23. The width of each outer periphery side connecting portion 32 gradually narrows as it approaches the outside.

[0027] In order to reduce the contact area with the disk portion 8a, the plate-like portion 21 is formed with a plurality of notches 33 that expose the outer circumferential side of the disk portion 8a when viewed from above. Each notch 33 extends between adjacent attachment portions 22 in the circumferential direction over an angular range of, for example, 90° or more (preferably 100° or more).

[0028] The cylindrical lower portion 23 is formed in a cylindrical shape with a constant height in the circumferential direction. The inner diameter of the cylindrical lower portion 23 is approximately equal to the outer diameter of the cylindrical portion 8b of the sounding plate 8. Therefore, the cylindrical portion 8b of the sounding plate 8 fits inside the cylindrical lower portion 23 of the support member 11, and the support member 11 is held by the sounding plate 8. The cylindrical lower portion 23 is also provided with a plurality of protruding plates 24 that protrude upward from the upper end of the cylindrical lower portion 23. Each protruding plate 24 is connected to the outer end of the lower surface of the outer periphery side connecting portion 32. The width (circumferential dimension) of each protruding plate 24 is approximately the same as the outer end of the outer periphery side connecting portion 32.

[0029] Each mounting portion 22 is composed of an inner claw portion 22a and an outer claw portion 22b that sandwich the lower end portion of the side portion 42 of the bottom surface member 12. The inner claw portion 22a and the outer claw portion 22b face each other via a gap equivalent to the thickness of the lower end portion of the side portion 42. The inner claw portion 22a has a longer protruding length than the outer claw portion 22b. As shown in FIG. 4(c), the inner claw portion 22a is erected on the outer end portion of the outer peripheral side connecting portion 32. The outer claw portion 22b is erected on a pedestal 25 provided on the outer surface of the protruding plate 24.

[0030] The circumferential dimension Y of the base 25 (shown in FIG. 4(a)) is preferably, for example, 20 mm or less, and more preferably 10 mm or less. This shortens the length of the support surface of the support member 11 that supports the bottom member 12, resulting in a better cup-in sound. The circumferential dimensions of the inner claw portion 22a and the outer claw portion 22b are also preferably, for example, 20 mm or less, and more preferably 10 mm or less.

[0031] As shown in Figs. 3 and 5, the bottom member 12 includes a bottom portion 41 that constitutes the bottom surface of the cup 3 after the bottom is raised, and a side portion 42 that extends downward from the outer periphery of the bottom portion 41. The bottom portion 41 is formed in an annular shape. The flagpole 1 can be inserted into an insertion hole 41a in the center of the bottom portion 41. The side portion 42 is formed in a cylindrical shape. The outer end of the bottom portion 41 and the upper end of the side portion 42 are joined to each other by a joining means such as welding. Specifically, the outer end of the bottom portion 41 has a slope that slopes obliquely upward toward the outside (for example, a slope at 45° with respect to the upper and lower surfaces of the bottom portion 41) (see Fig. 1). The upper end of the side portion 42 has a slope that slopes obliquely upward toward the outside (for example, a slope at 45°). The outer end of the bottom portion 41 and the upper end of the side portion 42 are joined in a state where their slopes are butted against each other. The shape of the joint between the outer end of the bottom surface portion 41 and the upper end of the side surface portion 42 may be any of the shapes shown in Figs. 6(a) to (c).

[0032] The material of the bottom member 12 may be, for example, stainless steel (SS400, etc.), aluminum, etc. This allows for a good cup-in sound. In particular, if the bottom portion 41 of the bottom member 12 is galvanized, R Aluminum Steel Plate (Registered Trademark) In this case, the entire bottom member 12 is covered with galvanized steel (aluminum-zinc alloy plated steel sheet). R Aluminum Steel Plate (Registered Trademark) Alternatively, other metals (such as stainless steel) may be used for the side portion 42. In the latter case, the bottom portion 41 and the side portion 42 are joined by welding. The thickness of the bottom portion 41 is preferably 2.0 mm or less, and more preferably 1.8 mm or less. The thickness of the side portion 42 is preferably 2.0 mm or less.

[0033] The bottom surface member 12 further includes a height adjustment section 50 for adjusting the height of the bottom surface member 12 relative to the support member 11. Here, the lower end of the side surface portion 42 is provided with attached portions 51-53 to which the multiple mounting portions 22 are attached. The attached portions 51-53 are made up of multiple parts 51-53 corresponding to the multiple mounting portions 22. The side surface portion 42 of the bottom surface member 12 is provided with multiple sets of attached portions 51-53 (three sets of attached portions 51-53 in this embodiment) as the height adjustment section 50, each set having a different height to the bottom surface portion 41. The height of the bottom surface member 12 relative to the support member 11 can be adjusted in multiple stages (three stages in this embodiment).

[0034] At the lower end of the side surface portion 42, three first notches 51 are formed at equal angular intervals as a first set of mounting portions 51. Each of the first notches 51 is formed in a substantially trapezoidal shape in a front view and extends upward from the lower end of the side surface portion 42. Furthermore, three second notches 52 are formed at equal angular intervals as a second set of mounting portions 52. The second notches 52 are formed in a substantially trapezoidal shape in a front view and extend upward from the lower end of the side surface portion 42. The second notches 52 are lower in height than the first notches 51. Furthermore, three protruding pieces 53 are formed at equal angular intervals as a third set of mounting portions 53. The protruding pieces 53 are formed in a substantially rectangular shape in a front view and protrude downward from the lower end of the side surface portion 42.

[0035] In this embodiment, when the mounting portion 22 is attached to the bottom portion of the first notch 51 of the first set of mounting portions 51, the height of the bottom member 12 relative to the support member 11 is the lowest. When the mounting portion 22 is attached to the bottom portion of the second notch 52 of the second set of mounting portions 52, the height of the bottom member 12 relative to the support member 11 is the second lowest. When the mounting portion 22 is attached to the protruding piece 53 of the third set of mounting portions 53, the height of the bottom member 12 relative to the support member 11 is the highest (the state in FIG. 1 ).

[0036] [2. How to use the bottom adjustment tool] Before raising the bottom of the cup 3, the bottom adjustment tool 10 is adjusted to any one of three heights, and each mounting portion 22 is attached to the mounting portions 51-53 corresponding to that height. This integrates the support member 11 and the bottom member 12. The bottom adjustment tool 10 is placed in the cup 3 in this state. Then, the flagpole 1 is placed on the columnar portion 7 through the insertion holes 31a, 41a of the bottom adjustment tool 10.

[0037] [3. Effects of the embodiment] In this embodiment, the resin support member 11 supports a plurality of points spaced apart from each other on the outer periphery of the metal bottom member 12 when viewed from above. In this case, the cup-in sound becomes closer to a good cup-in sound compared to when the outer periphery of the bottom member is supported all around.

[0038] In addition, in this embodiment, the plate-shaped portion 21 of the support member 11 is provided with a notch 33, thereby reducing the contact area between the plate-shaped portion 21 and the disk portion 8a, so that the cup-in sound transmitted from the bottom surface member 12 to the support member 11 is less likely to attenuate. Here, in a test conducted by the inventor of the present application using a prototype, the cup-in sound became louder by reducing the contact area between the plate-shaped portion 21 and the disk portion 8a. According to this embodiment, it is possible to provide a bottom surface adjuster 10 that produces an even better cup-in sound.

[0039] In this embodiment, the attachment parts 22 are attached to the bottom surface member 12 at positions outside the outer periphery X of the disc portion 8a when viewed from above. The lower surface of the plate-shaped portion 21 at the location where the attachment parts 22 are provided is not in contact with the disc portion 8a. Therefore, the cup-in sound transmitted from the bottom surface member 12 to the support member 11 is less likely to attenuate, and a bottom surface adjuster 10 that produces a better cup-in sound can be provided.

[0040] In this embodiment, the height of the bottom member 12 relative to the support member 11 is adjustable, allowing the manager of the golf course or the like to adjust the depth of the cup 3.

[0041] [4. Modifications of the embodiment] In this modified example, it is possible to adjust the inclination of the bottom surface member 12 relative to the support member 11. The following description will focus on the points that are different from the above-described embodiment.

[0042] The support member 11 has a plurality of mounting parts 22F, 22M for supporting the bottom surface member 12 at a plurality of positions, and at least one of the mounting parts 22F, 22M is provided to be movable in the vertical direction. Specifically, in the support member 11, of the three mounting parts 22F, 22M, two mounting parts 22F are integrated with the main body part 11a of the support member 11 shown in Fig. 11(a), and the remaining mounting part 22M is separate from the main body part 11a. The remaining mounting part 22M constitutes a part of the tilt adjustment member 70 shown in Fig. 11(b).

[0043] The main body 11a is a member in which the plate-like portion 21, the attachment portion 22F, the cylindrical lower portion 23, etc. are integrated. In the main body 11a, an adjustment member attachment portion 80 for the adjustment member 70 is provided at one of the three sets of outer circumferential side connection portions 32 and protruding plates 24.

[0044] As shown in Fig. 11(a), the adjustment member attachment portion 80 is provided on the outer surface of the protruding plate 24. The adjustment member attachment portion 80 includes a base support portion 81 with a flat upper surface, a cylindrical shaft portion 82 protruding upward from the upper surface of the base support portion 81, and a pair of adjustment portions 83 whose inner surfaces face each other with a gap therebetween so as to sandwich the base support portion 81. The inner surface of each adjustment portion 83 is formed with projections and recesses 83a that engage with projections 72a, which will be described later. The projections and recesses 83a of each adjustment portion 83 extend in the vertical direction. Between the pair of adjustment portions 83, the height positions of the recesses and projections in the projections and recesses 83a are the same.

[0045] As shown in Fig. 11(b), the adjustment member 70 includes a base 71 for placing the side surface portion 42 of the bottom surface member 12, an inner claw portion 22c erected on the base 71, an outer claw portion 22d erected on the base 71, and a pair of rod-shaped protrusions 72 protruding downward from the base 71. At least the upper surface of the base 71 is flat. The inner claw portion 22c and the outer claw portion 22d form the mounting portion 22M and face each other via a gap equivalent to the thickness of the lower end of the side surface portion 42. A through hole 75 extending in the vertical direction is formed in the inner claw portion 22c.

[0046] The pair of rod-shaped protrusions 72 extend parallel to each other with a gap in a direction (referred to as the "second direction") perpendicular to the direction (referred to as the "first direction") in which the inner claw portion 22c and the outer claw portion 22d face each other. A mountain-shaped convex portion 72a is formed on the outer surface of each rod-shaped protrusion 72 in the second direction.

[0047] FIG. 12(a) shows a state in which the adjustment member 70 is attached to the adjustment member attachment portion 80. The adjustment member 70 is attached to the adjustment member attachment portion 80 from above. When attaching the adjustment member 70, the pair of rod-shaped protrusions 72 are passed between the pair of adjustment portions 83 while the shaft portion 82 is inserted through the through hole 75 of the adjustment member 70. In this process, the convex portion 72a of each rod-shaped protrusion 72 engages with the concave portion of the concave portion 83a of each adjustment portion 83 at a plurality of height positions where the convex portion 72a enters the concave portion of the concave portion 83a of the adjustment portion 83. FIG. 12(a) shows a state in which the height of the adjustment member 70 is at its lowest. In this state, the lower surface of the base 71 of the adjustment member 70 is placed on the base support portion 81 of the adjustment member attachment portion 80.

[0048] When the adjustment member 70 is moved upward from the state shown in FIG. 12(a), the adjustment member 70 is held by the adjustment member attachment portion 80 at a height position where the convex portion 72a of each rod-shaped protrusion 72 engages with the concave and convex portions 83a. The adjustment member attachment portion 80 can hold the adjustment member 70 at a plurality of height positions. Here, in a golf cup, the columnar portion 7 or the sound plate 8 may be inclined relative to the cup body portion 6. In such a case, the bottom surface portion 41 of the bottom surface adjuster 10 of the above-mentioned embodiment is inclined. In contrast, in this modified example, the height of the adjustment member 70 and the attachment portion 22M can be changed by moving the adjustment member 70 up and down relative to the adjustment member attachment portion 80, and the inclination of the bottom surface portion 41 of the bottom surface member 12 can be adjusted to be approximately horizontal.

[0049] In this modification, the number of mounting parts 22 provided to be movable in the vertical direction is one, but it may be two or three. Also, the mounting part 22M is configured to be height adjustable in multiple stages by utilizing the engagement of recesses and protrusions, but the height may be continuously adjustable by utilizing the engagement of a screw provided on the adjustment member 70 side with a screw provided on the adjustment member mounting part 80 side, or the height may be adjusted by another mechanism. Also, a member for adjusting the inclination of the bottom surface member 12 relative to the support member 11 may be attached to the bottom surface member 12 side. EXAMPLES

[0050] A comparative evaluation of the cup-in sound was carried out between the Examples and Comparative Examples shown in Table 1. The comparative evaluation was a sensory evaluation by two evaluators.

[0051] <Example 1-4> Examples 1-4 are the bottom surface adjustment tools 10 of Figs. 1 to 5 described in the above embodiment. The sound was evaluated for each of the thicknesses of the bottom surface portion 41 of the bottom surface member 12, which were 1.6 mm, 2.0 mm, and 2.3 mm. The material of the bottom surface portion 41 was galvanized in Examples 1 and 4. R Aluminum Steel Plate (Registered Trademark)and the rest are SS400. When the thickness of the bottom surface portion 41 is 1.6 mm, sound was evaluated for each of the two types of material. The material of the side surface portion 42 in Examples 1-4 is SS400. In Examples 1 and 4, the shape of the joint between the outer end of the bottom surface portion 41 and the upper end of the side surface portion 42 in the bottom surface member 12 is the shape shown in FIG. 1. However, although not shown in Table 1, sound was also evaluated for the three shapes shown in FIGS. 6(a) to (c), and the shape in FIG. 1 was evaluated as having the best sound quality compared to each of the shapes in FIGS. 6(a) to (c).

[0052] <Example 5> Example 5 is a bottom surface adjustment tool that uses the support member 61 of Fig. 7. The bottom surface member 12 used is the same as that of Example 1. In the support member 61, a cylindrical lower portion 63 is integrally formed on the outer periphery of an annular plate-like portion 62. The plate-like portion 62 does not have the notch 33 of Example 1.

[0053] <Comparative Example 1> Example 1 is the bottom surface adjustment tool 110 in Fig. 8. The bottom surface adjustment tool 110 does not have a support member, and is composed only of a metal bottom surface member 112. Although not shown in Table 1, the evaluation result was also "x" when a resin support member that supports the entire periphery of the lower end of the bottom surface member 112 was used.

[0054] [Table 1]

[0055] In Table 1, the evaluation results are listed in order of the good cup-in sound (high cup-in sound), with "◎", "○", "△", and "×". According to the examples, the effects described in "Effects of the embodiment" were demonstrated.

[0056] [4. Other Modifications] In the above embodiment, the cylindrical lower portion 23 is provided on the support member 11 in accordance with the configuration of the hole cup 5, but the configuration of the support member 11 may be different from that of the above embodiment, for example, when the configuration of the hole cup 5 is different from that of the above embodiment. For example, as shown in FIG. 9, a hole cup 5 having a curved base bottom surface 8a may be used. The base bottom surface 8a is formed as a curved surface with a central portion recessed downward in cross section. The support member 11 has a plate-shaped portion 21 having a lower surface shape corresponding to the base bottom surface 8a, a plurality of mounting portions 22 for mounting the bottom surface member 12 to the support member 11, and a cylindrical lower portion 23 having the plurality of mounting portions 22 provided on the upper side. The cylindrical lower portion 23 is provided continuously with the upper end of the plate-shaped portion 21. As shown in FIG. 10, the plate-shaped portion 21 has an inner portion 31 whose entirety is located inside the outer periphery X of the disk portion 8a in top view, and a plurality of outer periphery side connection portions 32 extending from the outer periphery of the inner portion 31 toward the plurality of mounting portions 22. Between the circumferentially adjacent outer periphery side connection parts 32 in the plate-like part 21, as a configuration for reducing the contact area with the original bottom surface 8a, through holes 21a are formed that expose the outer periphery side of the original bottom surface 8a in a top view. Note that, although the bottom surface part 41 of the bottom surface member 12 is a flat surface in Fig. 9, it may be a curved surface with a central part recessed downward like the original bottom surface 8a.

[0057] In the above embodiment, a GPS (Global Positioning System) sensor 100 may be attached to the bottom surface adjuster 10. In FIG. 4, the GPS sensor 100 is attached to the upper surface of the plate-shaped portion 21 of the support member 11. The GPS sensor 100 can be attached to a position of the bottom surface adjuster 10 that does not contact the golf ball that has entered the cup (for example, the back surface of the bottom surface portion 41 that constitutes the bottom surface of the cup after the bottom is raised, or below the back surface). According to this modification, the GPS system can be used to measure the distance from a mobile terminal (for example, a wristwatch-type terminal) that has a built-in GPS sensor to the cup 3 in which the bottom surface adjuster 10 is placed, and the distance can be displayed on the mobile terminal. Note that the support member 11 is not essential for the bottom surface adjuster 10 to which the GPS sensor 100 is attached. The bottom surface adjuster 10 has a bottom surface member 12 and a GPS sensor 100 attached to the bottom surface member 12.

[0058] In the above embodiment, a notch 33 is formed in the plate-shaped portion 21 of the support member 11 as a configuration for reducing the contact area with the disc portion 8a, but a through hole may be formed to expose the outer periphery of the disc portion 8a when viewed from above, a notch may be formed extending outward from the insertion hole 31a of the plate-shaped portion 21, or a convex or concave portion may be formed on the underside of the plate-shaped portion 21.

[0059] In the above embodiment, the height adjustment portion 50 is provided on the bottom surface member 12, but the height adjustment portion 50 may be provided on the support member 11. In this case, for example, the height of each mounting portion 22 may be adjustable.

[0060] In the above embodiment, the height of the bottom surface member 12 relative to the support member 11 can be adjusted stepwise by the height adjustment unit 50, but this height adjustment may be made continuously by using a screw mechanism or the like. Also, the bottom surface adjuster 10 does not need to be provided with the height adjustment unit 50.

[0061] In the above embodiment, the bottom surface member 12 is attached to the support member 11, but the bottom surface member 12 may be simply placed on multiple support portions (such as the pedestal 25) of the support member 11 without being attached to the support member 11.

[0062] In the above embodiment, the support member 11 is attached to the side surface portion 42 of the bottom surface member 12, but the support member 11 may be attached directly to the bottom surface portion 41 without providing the side surface portion 42 on the bottom surface member 12. [Industrial Applicability]

[0063] The present invention is applicable to a golf cup bottom adjuster used for providing a raised bottom to a golf cup. [Explanation of symbols]

[0064] 3 Golf Cup 10 Golf cup bottom adjustment tool 11 Support member 12 Bottom surface material 21 Plate-shaped part 22 Mounting part 41 Bottom part 42 Side part

Claims

1. A golf cup bottom adjustment tool having a hole for a flagpole and used to raise the bottom of a golf cup, A resin support member is placed in the cup and placed on an original bottom surface, which is the bottom surface of the cup before the bottom is raised; a metal bottom surface member which is supported on an upper side of the cup by the support member and has a bottom surface portion which constitutes a bottom surface of the cup after the bottom is raised; The support member is configured to support the bottom surface member at a plurality of points spaced apart from each other on the outer circumferential side of the bottom surface member when viewed from above, The support member is A plurality of mounting portions for supporting the bottom surface member at the plurality of locations; a plate-shaped portion that is integrated with the plurality of mounting portions and is placed on an original bottom surface that is a bottom surface of the cup before the bottom is raised; A golf cup bottom adjustment device in which the plate-shaped portion is provided with the following configurations to reduce the contact area with the base bottom surface: (i) a notch or through hole that exposes the outer peripheral side of the base bottom surface when viewed from above, (ii) a notch extending outward from a through hole formed in the plate-shaped portion to allow a flagstick to pass through, or (iii) a convex portion or concave portion formed on the underside of the plate-shaped portion.

2. A golf cup bottom adjustment tool having a hole for a flagpole and used to raise the bottom of a golf cup, comprising: A resin support member is placed in the cup and placed on an original bottom surface, which is the bottom surface of the cup before the bottom is raised; a metal bottom surface member which is supported on an upper side of the cup by the support member and has a bottom surface portion which constitutes a bottom surface of the cup after the bottom is raised; The support member is configured to support the bottom surface member at a plurality of points spaced apart from each other on the outer circumferential side of the bottom surface member when viewed from above, The support member is A plurality of mounting portions for supporting the bottom surface member at the plurality of locations; a plate-shaped portion that is integrated with the plurality of mounting portions and placed on the base bottom surface; In the support member, the plurality of mounting portions support the bottom member at a position outside the outer periphery of the original bottom surface when viewed from above.

3. The bottom adjustment device for a golf cup as described in claim 2, wherein the plate-shaped portion of the support member has an inner portion whose entirety is located inside the outer periphery of the original bottom surface when viewed from above, and a plurality of outer periphery connection portions extending from the outer periphery of the inner portion toward a plurality of mounting portions.

4. A golf cup bottom adjustment tool having a hole for a flagpole and used to raise the bottom of a golf cup, comprising: A resin support member is placed in the cup and placed on an original bottom surface, which is the bottom surface of the cup before the bottom is raised; a metal bottom surface member which is supported on an upper side of the cup by the support member and has a bottom surface portion which constitutes a bottom surface of the cup after the bottom is raised; The support member is configured to support the bottom surface member at a plurality of points spaced apart from each other on the outer circumferential side of the bottom surface member when viewed from above, The bottom member further has a side portion integral with the bottom portion and extending downward from the bottom portion, The outer end of the bottom portion and the upper end of the side portion are joined together with their inclined surfaces butted against each other.

5. A golf cup bottom adjustment tool having a hole for a flagpole and used to raise the bottom of a golf cup, comprising: A resin support member is placed in the cup and placed on an original bottom surface, which is the bottom surface of the cup before the bottom is raised; a metal bottom surface member which is supported on an upper side of the cup by the support member and has a bottom surface portion which constitutes a bottom surface of the cup after the bottom is raised; The support member is configured to support the bottom surface member at a plurality of points spaced apart from each other on the outer circumferential side of the bottom surface member when viewed from above, A height adjustment unit is further provided for adjusting the height of the bottom surface member relative to the support member, The bottom member further has a side portion integral with the bottom portion and extending downward from the bottom portion, A mounting portion is provided at a lower end of the side surface portion of the bottom surface member, to which a plurality of mounting portions for supporting the bottom surface member at the plurality of points are attached, The mounting portion is made up of a plurality of portions corresponding to the plurality of mounting portions, The bottom adjuster for a golf cup, wherein the side surface of the bottom member is provided with a plurality of sets of mounting portions having different heights to the bottom surface as the height adjustment portion.

6. A golf cup bottom adjustment tool having a hole for a flagpole and used to raise the bottom of a golf cup, comprising: A resin support member is placed in the cup and placed on an original bottom surface, which is the bottom surface of the cup before the bottom is raised; a metal bottom surface member which is supported on an upper side of the cup by the support member and has a bottom surface portion which constitutes a bottom surface of the cup after the bottom is raised; The support member is configured to support the bottom surface member at a plurality of points spaced apart from each other on the outer circumferential side of the bottom surface member when viewed from above, The inclination of the bottom surface member relative to the support member is adjustable, The support member has a plurality of mounting portions for supporting the bottom member at the plurality of locations, and at least one of the plurality of mounting portions is arranged to be movable in the vertical direction.

7. A golf cup bottom adjustment tool having a hole for a flagpole and used to raise the bottom of a golf cup, comprising: A resin support member is placed in the cup and placed on an original bottom surface, which is the bottom surface of the cup before the bottom is raised; a metal bottom surface member which is supported on an upper side of the cup by the support member and has a bottom surface portion which constitutes a bottom surface of the cup after the bottom is raised; The support member is configured to support the bottom surface member at a plurality of points spaced apart from each other on the outer circumferential side of the bottom surface member when viewed from above, The bottom surface member further has a side surface portion that is integrated with the bottom surface portion and extends downward from an outer periphery of the bottom surface portion, the support member has a plurality of attachment portions that support the bottom surface member at a plurality of locations spaced apart from each other on the outer circumferential side of the bottom surface member when viewed from above, The plurality of mounting portions are attached to a lower end portion of the side portion,

8. A golf cup bottom adjustment tool having a hole for a flagpole and used to raise the bottom of a golf cup, comprising: A resin support member is placed in the cup and placed on an original bottom surface, which is the bottom surface of the cup before the bottom is raised; a metal bottom surface member which is supported on an upper side of the cup by the support member and has a bottom surface portion which constitutes a bottom surface of the cup after the bottom is raised; The support member is configured to support the bottom surface member at a plurality of points spaced apart from each other on the outer circumferential side of the bottom surface member when viewed from above, the sound-producing plate provided on the golf cup is a member formed by integrating a disk portion that forms the base bottom surface and a cylindrical portion that extends downward from an outer periphery of the disk portion, The support member has a plurality of mounting portions for supporting the bottom member at the plurality of locations, and a cylindrical lower portion integrated with the plurality of mounting portions and formed so that the cylindrical portion of the sound-producing plate fits inside, in a bottom adjustment device for a golf cup.

9. A golf cup bottom adjustment tool having a hole for a flagpole and used to raise the bottom of a golf cup, comprising: A resin support member is placed in the cup and placed on an original bottom surface, which is the bottom surface of the cup before the bottom is raised; a metal bottom surface member which is supported on an upper side of the cup by the support member and has a bottom surface portion which constitutes a bottom surface of the cup after the bottom is raised; The support member is configured to support the bottom surface member at a plurality of points spaced apart from each other on the outer circumferential side of the bottom surface member when viewed from above, The bottom surface member has, in addition to the bottom surface portion, a side surface portion extending downward from an outer periphery of the bottom surface portion, In the bottom member, a galvalume steel sheet (registered trademark) is used for the bottom portion, and a metal other than a galvalume steel sheet (registered trademark) is used for the side portion.

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