Caddie bag

Abstract

To provide a caddie bag comprising a bottom component that has high rigidity, is easy to manufacture, and is light-weight.SOLUTION: A caddie bag 100 comprises: a cylindrical bag body 10 for storing golf clubs 101; and a bottom component 20 attached to a bottom edge of the bag body 10. The bottom component 20 has a bottom surface part 30 that protrudes so as to be higher as it goes toward its center part 31. The bottom surface part 30 includes one or both of an inflection part 34 whose cross section changes from concave to convex and a bending part 36 whose cross section is bendable.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a caddy bag.

Background Art

[0002] A caddy bag includes a bottom part corresponding to the bottom portion. The bottom part requires a certain degree of rigidity. If the rigidity of the bottom part is high, deformation of the bottom part can be suppressed, and the caddy bag can be prevented from tipping over. As a method of increasing the rigidity of the bottom part, a method of making the bottom part into a multi-layer structure has been proposed (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, making the bottom part into a multi-layer structure complicates the manufacturing process and leads to an increase in weight.

[0005] In view of such circumstances, an object of the present invention is to provide a caddy bag provided with a bottom part having high rigidity, being easy to manufacture, and being lightweight.

Means for Solving the Problems

[0006] A caddy bag according to an aspect of the present invention includes a cylindrical bag body for accommodating a golf club, and a bottom part attached to the lower end of the bag body. The bottom part has a bottom surface portion that bulges so as to become higher toward the central portion, and the bottom surface portion includes one or both of an inflection portion where the cross section changes from concave to convex and a bent portion where the cross section bends.

[0007] In this configuration, the bottom surface portion bulges upward so that it becomes higher toward the central portion. Therefore, for example, when a force is applied to the bottom surface portion from above, a compressive load that is less likely to cause deformation than a tensile load is applied to the bottom surface portion. As a result, the rigidity of the bottom component can be increased. Moreover, the bottom surface portion includes one or both of a bending portion where the cross section changes from concave to convex and a bending portion where the cross section bends. The periphery of these bending portions and bending portions can serve as beams or columns. As a result, the rigidity of the bottom component can be further increased. Furthermore, since the rigidity of the bottom component can be increased in the above configuration, it is not necessary to form the bottom component into a multi-layer structure. As a result, the above bottom component can be easily manufactured and its weight can be reduced.

[0008] In the above caddy bag, the height of the bulge of the bottom surface portion may be 10 mm or more and 30 mm or less.

[0009] In this configuration, since the height of the bulge of the bottom surface portion is 10 mm or more, high rigidity of the bottom component can be ensured. Also, since the height of the bulge of the bottom surface portion is 30 mm or less, it is possible to suppress the compression of the storage area of the caddy bag.

[0010] In the above caddy bag, a downwardly convex trough portion extending from the central portion toward the outer peripheral edge may be formed on the bottom surface portion.

[0011] In this configuration, since a trough portion extending from the central portion toward the outer peripheral edge is formed on the bottom surface portion, a bending portion extending from the central portion toward the outer peripheral edge is formed on the bottom surface portion along this trough portion. As a result, the displacement of the bottom surface portion in the vertical direction can be suppressed, and the rigidity of the bottom component can be further increased.

[0012] In the above caddy bag, the trough portion may be curved in plan view.

[0013] In this configuration, the valley portion is curved in plan view. Therefore, bending portions are formed in a wide range in the circumferential direction of the bottom surface portion. As a result, the rigidity of the bottom component can be further enhanced.

[0014] In the above-mentioned caddy bag, the bottom surface portion may be formed in a stepped shape.

[0015] In this configuration, the bottom surface portion is formed in a stepped shape. Therefore, a plurality of bending portions are formed at different vertical positions on the bottom surface portion. As a result, bending portions are formed in a wide range of the bottom surface portion, and the rigidity of the bottom component can be further enhanced.

Effect of the Invention

[0016] According to the above configuration, it is possible to provide a caddy bag including a bottom component that is easy to manufacture, has high rigidity, and is lightweight.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0018] (Outline of the Caddy Bag) Hereinafter, the caddy bag 100 according to an embodiment of the present invention will be described. First, an overview of the caddy bag 100 will be described. FIG. 1 is a schematic view of the caddy bag 100. The caddy bag 100 includes a cylindrical bag body 10 that houses a golf club 101, and a bottom part 20 attached to the lower end of the bag body 10.

[0019] The material of the bag body 10 is not particularly limited. For example, the bag body 10 can be formed by covering a resin core with a cloth cover. Further, the bottom part 20 of the present embodiment is made of resin. The bottom part 20 is fixedly attached to the lower end of the bag body 10. For example, the bottom part 20 may be fixed to the bag body 10 by adhesion with an adhesive and sewing. In the caddy bag 100, if the rigidity of the bottom part 20 is high, the bottom part 20 is less likely to deform, and as a result, the caddy bag 100 can be prevented from tipping over.

[0020] (Details of the bottom part) Next, the details of the bottom part 20 will be described. FIG. 2 is a perspective view of the bottom part 20 as viewed from the upper surface side. FIG. 3 is a perspective view of the bottom part 20 as viewed from the lower surface side. As shown in FIGS. 2 and 3, the bottom part 20 includes a bottom surface part 30 and an outer peripheral part 40. These components will be described in order below.

[0021] <Bottom surface part> The bottom surface part 30 is located at the center of the bottom part 20. The bottom surface part 30 of the present embodiment is raised so as to become higher from the outer peripheral edge toward the central part 31. That is, the bottom surface part 30 is formed in a dome shape as a whole. Therefore, for example, when a force is applied to the bottom surface part 30 from above, a compressive load that is less likely to cause deformation than a tensile load is applied to the bottom surface part 30. Therefore, by raising the bottom surface part 30 as in the present embodiment, the rigidity of the entire bottom part 20 can be increased.

[0022] More specifically, the bottom surface part 30 includes a central part 31 and a raised part 32.

[0023] The central portion 31 is a portion including the center point of the bottom surface portion 30 in plan view. In the present embodiment, the central portion 31 is formed in a horizontal plane shape. However, the central portion 31 may be formed in a partial spherical shape.

[0024] The raised portion 32 is an annular portion arranged so as to surround the entire circumference of the central portion 31. The raised portion 32 is formed such that the height increases as it goes from the outer peripheral edge toward the central portion 31. In the present embodiment, the raised portion 32 is formed in a curved surface shape. Further, a plurality of downwardly convex valleys 33 are formed in the raised portion 32. Each valley 33 linearly extends from the central portion 31 toward the outer peripheral edge.

[0025] However, instead of or in addition to the valleys 33, upwardly convex ridges may be formed in the raised portion 32. In either case of the valleys 33 and the ridges, a bent portion 34 whose cross section changes from concave to convex is formed around them. The periphery of such a bent portion 34 can serve as a beam or a column on the bottom surface portion 30. Therefore, by including the bent portion 34 in the bottom surface portion 30 as in the present embodiment, the rigidity of the bottom component 20 can be increased.

[0026] Furthermore, each valley 33 is curved in plan view. Specifically, each valley 33 curves such that the circumferential position changes as it goes toward the outer peripheral edge of the bottom surface portion 30. As a result, bent portions 34 are formed in a wide range of the bottom surface portion 30, and thus the rigidity of the bottom component 20 can be further increased. Note that each valley 33 appears on the lower surface of the bottom surface portion 30, but each valley 33 may be visible when the caddy bag 100 is being transported. Therefore, curving each valley 33 is also preferable from the viewpoint of design.

[0027] Also, as shown in FIG. 3, a plurality of reinforcing portions (ribs) 35 having a greater thickness than other adjacent portions are formed on the lower surface side of the bottom surface portion 30. The reinforcing portion 35 of the present embodiment is formed in an annular shape along the outer peripheral edge of the central portion 31 and is linearly formed so as to extend from the central portion 31 toward the outer peripheral edge of the bottom surface portion 30. Note that three reinforcing portions 35 extending from the central portion 31 toward the outer peripheral edge of the bottom surface portion 30 are respectively formed at portions corresponding to between adjacent valley portions 33. Further, since the reinforcing portion 35 extending from the central portion 31 toward the outer peripheral edge of the bottom surface portion 30 can suppress deformation of the bottom surface portion 30 in the vertical direction, the rigidity of the bottom component 20 can be further enhanced.

[0028] Furthermore, the reinforcing portion 35 is formed so as to protrude downward from the lower surface of the bottom surface portion 30. Therefore, when the caddy bag 100 is viewed from below, the reinforcing portion 35 can be visually recognized. Thus, forming the reinforcing portion 35 so as to protrude downward from the lower surface portion of the bottom surface portion 30 as in the present embodiment is also preferable from the viewpoint of design. However, the reinforcing portion 35 may be formed so as to protrude upward from the upper surface of the bottom surface portion 30. Note that the shape of the reinforcing portion 35 is not limited to the above. For example, the reinforcing portion 35 may be formed in a honeycomb shape.

[0029] Note that the height (level difference) h of the raised portion of the bottom surface portion 30 is not particularly limited, but it is preferably 10 mm or more and 30 mm or less (see FIG. 4). By setting the height h of the raised portion of the bottom surface portion 30 to 10 mm or more, high rigidity of the bottom component 20 can be ensured. On the other hand, by setting the height h of the raised portion of the bottom surface portion 30 to 30 mm or less, compression of the storage area of the caddy bag 100 can be suppressed.

[0030] <Outer peripheral portion> The outer peripheral portion 40 is arranged to surround the bottom surface portion 30. The outer peripheral portion 40 of the present embodiment is annular and integrally formed with the bottom surface portion 30. As described above, the bottom surface portion 30 of the present embodiment bulges so as to become higher toward the central portion 31. Therefore, when a force is applied from above, for example, the bottom surface portion 30 tends to deform so as to expand outward. However, since the outer peripheral portion 40 integrally formed with the bottom surface portion 30 is formed in an annular shape and surrounds the entire circumference of the bottom surface portion 30, the deformation of the bottom surface portion 30 is suppressed. As a result, the rigidity of the bottom component 20 can be further enhanced.

[0031] Explaining the outer peripheral portion 40 in more detail, as shown in FIG. 2, the outer peripheral portion 40 includes a horizontal portion 41, an inclined portion 42, and a vertical wall portion 43.

[0032] The horizontal portion 41 is located outside the bottom surface portion 30 and is a portion continuous from the bottom surface portion 30. The horizontal portion 41 is formed in an annular shape and surrounds the bottom surface portion 30. The horizontal portion 41 is formed perpendicular to the vertical direction (i.e., horizontally). Therefore, the horizontal portion 41 is difficult to deform under a force applied in the horizontal direction. Accordingly, the outer peripheral portion 40 including the horizontal portion 41 can efficiently suppress the deformation of the bottom surface portion 30 in the horizontal direction. However, the horizontal portion 41 may be omitted from the outer peripheral portion 40, or the horizontal portion 41 may be inclined so as to become lower toward the outside.

[0033] The inclined portion 42 is located outside the horizontal portion 41 and is a portion continuous from the horizontal portion 41. The inclined portion 42 is formed in an annular shape and surrounds the horizontal portion 41. The inclined portion 42 is inclined so as to become higher toward the outside (as it moves away from the bottom surface portion 30). The inclination angle α of the inclined portion 42 is not particularly limited, but it is preferably 30 degrees or more and 60 degrees or less (see FIG. 4).

[0034] In addition, a plurality of legs 44 are formed at equal intervals in the circumferential direction on the inclined portion 42. FIG. 4 is a longitudinal sectional view of the bottom part 20 in a portion not including the legs 44. FIG. 5 is a longitudinal sectional view of the bottom part 20 in a portion including the legs 44. As can be seen by comparing FIG. 4 and FIG. 5, the legs 44 are recessed outward, and the tips are located below the horizontal portion 41 and in contact with the ground (grounded). However, the tips of the legs 44 may be located at the same height as the horizontal portion 41. By forming the legs 44 on the inclined portion 42 as in the present embodiment, the rigidity in the vertical and horizontal directions in the portion corresponding to the legs 44 is increased. Moreover, by using the recessed portion outside the inclined portion 42 as the legs 44, there is no need to separately manufacture and attach the legs 44.

[0035] The vertical wall portion 43 extends upward from the inclined portion 42 and is a portion continuous with the inclined portion 42. The vertical wall portion 43 is formed in an annular shape and extends in the vertical direction. This vertical wall portion 43 is fixed to the lower end portion of the bag body 10. Since the outer peripheral portion 40 includes the vertical wall portion 43 extending in the vertical direction, it is difficult to deform in the vertical direction, and for example, the rigidity against torsion around the horizontal axis can be increased.

[0036] As shown in FIGS. 4 and 5, the bottom part 20 of the present embodiment has a substantially constant and thin overall thickness except for the reinforcing portion 35. The bottom part 20 of the present embodiment is formed to have a thickness of 0.8 mm or more and 2.0 mm or less. Also, since the bottom part 20 of the present embodiment can ensure sufficient rigidity, there is no need for a multi-layer structure. Therefore, the bottom part 20 of the present embodiment can be lightened. Note that the bottom part 20 of the present embodiment is formed to have a weight of 80 g or more and 150 g or less. Further, since the bottom part 20 of the present embodiment can be manufactured by, for example, simple injection molding or the like, the manufacturing is easy.

[0037] (Modification example) The above-mentioned caddy bag 100 includes the bottom part 20 shown in FIG. 2, but the caddy bag 100 may also include the bottom part 20A shown in FIG. 6. FIG. 6 is a perspective view seen from the upper surface side of the bottom part 20A in the modified example. The bottom part 20A in the modified example has a different shape of the bottom surface part 30 from the bottom part 20 described above, but is otherwise the same as the bottom part 20 described above.

[0038] Also in the bottom part 20A of the modified example, the bottom surface part 30 bulges so as to become higher as it goes toward the central part 31. However, the bottom surface part 30 is formed in a stepped shape. That is, the bottom surface part 30 is formed such that an annular part extending in the vertical direction from the central part 31 outward and an annular part extending in the horizontal direction are alternately continuous. And the boundaries of those parts are bent in a cross-sectional view. That is, the bottom surface part 30 shown in FIG. 6 has a plurality of bent parts 36 where the cross-section is bent.

[0039] Similar to the bent part 34 (see FIG. 2), the peripheral part of the bent part 36 can serve as a beam or a column. Therefore, the bottom part 20A shown in FIG. 6 can also enhance the rigidity. Furthermore, since the bottom part 20A can ensure sufficient rigidity, it is not necessary to have a multi-layer structure, can be easily manufactured, and can also be lightened.

[0040] Note that the bottom parts 20 and 20A described above are formed in a circular shape in a plan view, but the shapes of the bottom parts 20 and 20A are not limited to this. For example, the bottom parts 20 and 20A may be elliptical or rectangular in a plan view.

[0041] Also, a part of the configuration of the bottom part 20A shown in FIG. 6 may be applied to the bottom part 20 shown in FIG. 2. That is, the bottom part 20 may include both the bent part 34 and the bent part 36. Furthermore, the bottom part 20 may be formed such that there is no part where the cross-section is concave throughout, and neither the bent part 34 nor the bent part 36 is included.

Explanation of Reference Numerals

[0042] 10 Bag body 20 Bottom part 20A Bottom part 30 Bottom surface 31 Central part 32 Bulging part 33 Valley part 34 Bent part 35 Reinforcing part 36 Flexure part 40 Outer peripheral part 41 Horizontal part 42 Inclined part 43 Upright wall part 44 Leg 100 Caddy bag 101 Golf club h Bulging height α Inclination angle

Claims

1. A cylindrical bag body for accommodating golf clubs; A bottom part attached to a lower end of the bag body, The bottom part has a bottom surface portion that rises toward a central portion, The bottom surface portion includes one or both of an inflection portion where the cross section changes from concave to convex and a bent portion where the cross section is bent.

2. 2. The caddy bag according to claim 1, wherein the raised height of the bottom surface portion is 10 mm or more and 30 mm or less.

3. 3. The caddy bag according to claim 1, wherein the bottom surface portion is formed with a downwardly convex valley portion extending from the central portion toward the outer periphery.

4. The caddy bag according to claim 3 , wherein the valley portion is curved in a plan view.

5. 3. The caddy bag according to claim 1, wherein the bottom surface portion is formed in a stepped shape.

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