Caddie bag

By incorporating strategically placed reinforcement members within the core material of the caddy bag, the design achieves a balance between strength and weight reduction, addressing the needs of female and elderly golfers for a lightweight yet durable bag.

JP2025056592APending Publication Date: 2025-04-08SUMITOMO RUBBER INDUSTRIES LTD
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Patent Information

Application Number
JP2023166164
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

Existing caddy bags struggle to achieve a balance between weight reduction and maintaining strength, particularly for female and elderly golfers who require lighter yet durable bags.

Method used

The caddy bag incorporates a core material with strategically placed band-shaped and annular reinforcement members, both vertically and horizontally, to enhance strength while minimizing weight by optimizing the placement and design of these reinforcement elements.

Benefits of technology

This design results in a caddy bag that is both strong and lightweight, effectively addressing the need for reduced weight without compromising structural integrity.

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Abstract

To provide a light-weight caddie bag with high strength.SOLUTION: A caddie bag 100 comprises an outer trunk 10; a bottom 20 disposed in the lower end part of the outer trunk 10; and a core material 30 positioned inside the outer trunk 10. The core material 30 includes: a cylindrical core material body 31 fitted to the bottom 20 in the lower end part and extending along the vertical direction; one or more vertical reinforcement members 32a-32e disposed in the outer peripheral surface of the cylindrical core material body 31 as belt-like members extending upward from the bottom 20, and having a top edge in a position separated from the bottom 20 upward for 20 cm to 40 cm; and a lateral reinforcement member 33 disposed in the outer peripheral surface of the cylindrical core material body 31 as a belt-like and annular member extending along the circumferential direction of the core material body 31, and joined to the top edge parts of one or more vertical reinforcement members 32a-32e.SELECTED DRAWING: Figure 2
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Description

[Technical field]

[0001] The present specification discloses a golf bag. [Background technology]

[0002] In recent years, with the increase in female and elderly golfers, there is a demand for further weight reduction in caddy bags (golf bags). The following Patent Document 1 proposes a core material for caddy bags in which a reinforcing film is bonded to a foamed synthetic resin sheet in order to reduce the weight of the caddy bag. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-19258 Summary of the Invention [Problem to be solved by the invention]

[0004] In a caddy bag having a reinforcing member in the core, by arranging the reinforcing member in an appropriate area, it is possible to further reduce the weight while maintaining the strength.

[0005] The applicant's intention is to provide a golf bag that is strong and lightweight. [Means for solving the problem]

[0006] The caddy bag disclosed in this specification comprises an outer body, a bottom provided at the lower end portion of the outer body, and a core material located inside the outer body, the core material having a cylindrical core material body whose lower end portion is attached to the bottom and extends in the vertical direction, at least one vertical reinforcing member which is a band-shaped member provided on the outer surface of the core material body and extends upward from the bottom, with an upper end located 20 cm to 40 cm above the bottom, and a horizontal reinforcing member which is a band-shaped, annular member provided on the outer surface of the core material body and extends circumferentially of the core material body, and which is connected to the upper end portion of the at least one vertical reinforcing member. Effect of the Invention

[0007] This caddy bag is strong and lightweight. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a side view of a caddy bag. [Diagram 2] FIG. 2 is a side view of the bottom and core. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, preferred embodiments will be described in detail with reference to the drawings as appropriate.

[0010] (Overall composition of the caddy bag) First, the overall configuration of a caddy bag 100 according to an embodiment will be described. Fig. 1 is a side view of the caddy bag 100. The left side of the paper in Fig. 1 is the front side of the caddy bag 100, and the right side of the paper in Fig. 1 is the back side. The caddy bag 100 is a bag for storing golf clubs and the like, and can stand on its own so that the top and bottom of the paper in Fig. 1 are the top and bottom. Hereinafter, the top of the caddy bag 100 in a self-supporting state will be referred to simply as the "upper side", and the bottom will be referred to simply as the "lower side".

[0011] As shown in Fig. 1, the caddy bag 100 according to this embodiment includes an outer body 10, a bottom 20, and a core material 30. These components will be described below in order.

[0012] <Outer body> The outer body 10 is a cylindrical part that forms the outer shell of the caddy bag 100. The outer body 10 is formed of, for example, synthetic leather, but the material of the outer body 10 is not limited. The outer body 10 has a mouth frame 11 located in the upper part, a handle 12 located in the upper part of the front, a front bag 13 located in the lower part of the front and protruding outward, and a back bag 14 located from the vertical center part to the lower part of the back and protruding outward. Note that the back bag 14 may be located only in the lower part of the back.

[0013] The mouth frame 11 is an insertion opening for inserting a golf club into the caddy bag 100. The handle 12 is a member for lifting the caddy bag 100. The front bag 13 and the back bag 14 are both storage sections for storing small items. As described above, the handle 12 and the front bag 13 are located on the front side of the outer body 10, and the back bag 14 is located on the back side of the outer body 10. In other words, the back bag 14 is located on the opposite side of the handle 12 and the front bag 13 across the center of the outer body 10.

[0014] <Bottom> The bottom 20 is a member provided at the lower end portion of the outer body 10, and is located at the lower end portion of the caddy bag 100. The bottom 20 closes the lower end of the outer body 10, and contacts the ground when the caddy bag 100 is in a self-supporting state. FIG. 2 is a side view of the bottom 20 and the core material 30. As shown in FIG. 2, the bottom 20 of this embodiment includes a circular bottom surface 21 and an annular outer peripheral wall 22 extending upward from the outer peripheral edge of the bottom surface 21. The bottom 20 has a higher rigidity than the outer body 10 and the core material 30, and is formed of, for example, a hard resin. However, the material of the bottom 20 is not limited.

[0015] <Core material> The core material 30 is a member located inside the outer body 10. The core material 30 has a substantially cylindrical shape and extends in the up-down direction. The lower end portion of the core material 30 is attached to the bottom 20, and the upper end portion is attached to the mouth frame 11 of the outer body 10. The core material 30 is formed of a material that is softer than the bottom 20. Therefore, the core material 30 has a lower rigidity than the bottom 20 and is easily bent. When the applicant investigated used conventional products, it was found that although the core material 30 is easily bent, plastic deformation can occur.

[0016] In order to suppress the plastic deformation of the core material 30, it is conceivable to increase the thickness of the core material 30. However, in this case, the weight of the core material 30 increases, and thus the weight of the caddy bag 100 also increases. For example, the core material 30 of this embodiment is designed so that the total weight is, for example, 700 g or less. Therefore, the thickness of the core material 30 has to be set small. Therefore, in the core material 30 of this embodiment, a reinforcing member is provided in the core material 30, and the reinforcing member is arranged in an appropriate range, thereby achieving a reduction in weight while maintaining the strength of the caddy bag 100.

[0017] (Core material details) Next, the configuration of the core material 30 will be described in detail. Fig. 3 is a cross-sectional view taken along line III-III in Fig. 2. As shown in Figs. 2 and 3, the core material 30 has a core material main body 31, vertical reinforcing members 32a to 32e, and a horizontal reinforcing member 33. Below, these components will be described in order.

[0018] <Core body> The core body 31 is a member that becomes the base of the core 30. The lower end portion of the core body 31 is attached to the outer peripheral wall 22 of the bottom 20. The core body 31 has a substantially cylindrical shape and extends along the vertical direction. The vertical dimension of the core body 31 is, for example, 80 cm to 100 cm. As described above, the core 30 of this embodiment is designed so that the total weight is, for example, 700 g or less. Therefore, the thickness of the core body 31 is set to, for example, 1.2 mm or less. In this embodiment, the thickness of the core body 31 is, for example, 0.5 mm to 1.2 mm. The core body 31 of this embodiment is formed of resin. However, the material of the core body 31 is not limited.

[0019] <Vertical reinforcement member> The vertical reinforcing members 32a-32e are strip-shaped reinforcing members extending in the vertical direction. The vertical reinforcing members 32a-32e are provided on the outer peripheral surface of the core body 31 and extend upward from the bottom 20. In this embodiment, the vertical reinforcing members 32a-32e are sewn to the core body 31, but may be bonded to the core body 31 by adhesive or the like. The lower ends of the vertical reinforcing members 32a-32e are located near the bottom 20, and the upper ends are located 20 cm to 40 cm above the bottom 20 (i.e., 30% to 50% of the vertical dimension of the core body 31). The vertical dimension of the vertical reinforcing members 32a-32e in this embodiment is approximately 20 cm to 40 cm.

[0020] Here, the applicant investigated an actual conventional product that had already been used by a user and found that plastic deformation was likely to occur in the core material 30 in a range of 10 cm to 30 cm above the bottom 20 (hereinafter referred to as the "deformation occurrence range"). This is thought to be because, since the core material 30 is fixed to the bottom 20, when an external force is applied to the side of the core material 30, the load is concentrated in the deformation occurrence range, which is a portion of the core material 30 slightly above the bottom 20.

[0021] Then, since the vertical reinforcing members 32a-32e of this embodiment are located in a range including the deformation occurrence range, plastic deformation occurring in the core material 30 can be suppressed. Also, the vertical dimension of the vertical reinforcing members 32a-32e of this embodiment is approximately 20 cm to 40 cm as described above, which is smaller than the vertical dimension of the core material body 31. Moreover, the vertical reinforcing members 32a-32e of this embodiment are arranged at intervals in the circumferential direction. Therefore, according to this embodiment, the total weight of the core material 30 can be suppressed, and the weight of the caddy bag 100 can be reduced.

[0022] The width dimension of the vertical reinforcing members 32a-32e, i.e., the dimension in the direction along the circumferential direction of the core body 31, is 5 cm to 10 cm. The thickness of the vertical reinforcing members 32a-32e is 0.2 mm to 1.0 mm. The vertical reinforcing members 32a-32e are made of the same material as the core body 31. However, the vertical reinforcing members 32a-32e may be made of a material different from that of the core body 31.

[0023] The core material 30 of this embodiment has five vertical reinforcing members 32a-32e. The five vertical reinforcing members 32a-32e include a first vertical reinforcing member 32a. As shown in Fig. 3, when the axis 34 of the core material main body 31 is used as a reference, the direction in which the widthwise center (circumferential center) of the back bag 14 is located when viewed from above is defined as a first angular direction A. In this case, the first vertical reinforcing member 32a is located on the first angular direction A.

[0024] When the applicant investigated a used conventional product, it was found that the back side of the above-mentioned deformation range of the core material 30 is particularly prone to plastic deformation. This is thought to be because the back bag 14 of the outer body 10 protrudes outward, and therefore, for example, when the back bag 14 comes into contact with a wall or the like during transportation of the caddy bag 100, an impact is likely to be applied to the back side of the core material 30 through the back bag 14. Note that, although the front bag 13 also protrudes outward, the front bag 13 protrudes more than the back bag 14, and therefore impact is more easily absorbed internally than the back bag 14, and therefore, it is thought that the front side of the core material 30 is less prone to plastic deformation than the back side.

[0025] As a result, as described above, the first vertical reinforcing member 32a in this embodiment is located in the first angular direction A, which corresponds to the rear side of the deformation occurrence range of the core material 30. Therefore, according to this embodiment, plastic deformation occurring in the core material 30 can be effectively suppressed.

[0026] The vertical reinforcing members 32a to 32e also include a second vertical reinforcing member 32b. As shown in Fig. 3, when the axis 34 of the core body 31 is used as a reference, the angular direction at which the clockwise deviation angle X from the first angular direction A is 72 degrees as viewed from above is defined as a second angular direction B. In this case, the second vertical reinforcing member 32b is located on the second angular direction B. However, it is sufficient that the deviation angle X is within 90 degrees.

[0027] Furthermore, the vertical reinforcing members 32a to 32e include a third vertical reinforcing member 32c. As shown in Fig. 3, when the axis 34 of the core body 31 is used as a reference, the angular direction in which the counterclockwise deviation angle Y from the first angular direction A when viewed from above is 72 degrees is defined as a third angular direction C. In this case, the third vertical reinforcing member 32c is located on the third angular direction C. However, it is sufficient that the deviation angle Y is within 90 degrees.

[0028] As described above, the core material 30 of this embodiment has the second vertical reinforcing member 32b and the third vertical reinforcing member 32c in addition to the first vertical reinforcing member 32a. Therefore, even if the core material 30 is deformed by a force applied from the back side of the above-mentioned deformation occurrence range, the second vertical reinforcing member 32b and the third vertical reinforcing member 32c can suppress the amount of deformation of the core material 30 to an extent that the core material 30 does not undergo plastic deformation.

[0029] Furthermore, the vertical reinforcing members 32a-32e include a fourth vertical reinforcing member 32d and a fifth vertical reinforcing member 32e. The fourth vertical reinforcing member 32d is located in a fourth angular direction D, which is an angular direction with an angle X of 144 degrees clockwise from the first angular direction A described above. The fifth vertical reinforcing member 32e is located in a fifth angular direction E, which is an angular direction with an angle Y of 144 degrees counterclockwise from the first angular direction A described above. In this embodiment, the vertical reinforcing members 32a-32e are arranged at equal intervals in the circumferential direction.

[0030] In this embodiment, since the vertical reinforcing members 32a-32e are disposed at equal intervals around the entire circumference of the core body 31, it is possible to increase the rigidity of the deformation area of ​​the core body 30, thereby suppressing plastic deformation in the deformation area. However, in order to further reduce the weight of the core body 30, the fourth vertical reinforcing member 32d and the fifth vertical reinforcing member 32e may be omitted, and further, not only the fourth vertical reinforcing member 32d and the fifth vertical reinforcing member 32e but also the second vertical reinforcing member 32b and the third vertical reinforcing member 32c may be omitted.

[0031] <Horizontal reinforcement member> The lateral reinforcing member 33 is a band-like, annular member extending along the circumferential direction of the core body 31. As shown in FIG. 2, the lateral reinforcing member 33 is provided on the outer peripheral surface of the core body 31 and is connected to the upper end portions of the vertical reinforcing members 32a-32e. Therefore, the lateral reinforcing member 33 can suppress the displacement of the upper end portions of the vertical reinforcing members 32a-32e. As a result, the rigidity of the region of the core 30 below the lateral reinforcing member 33 can be increased. This increases the rigidity of the deformation-occurring range of the core 30, and suppresses plastic deformation occurring in the core 30. In this embodiment, the lateral reinforcing member 33 is sewn to the core body 31 and the vertical reinforcing members 32a-32e, but it may be bonded to the vertical reinforcing members 32a-32e and the core body 31 by adhesive or the like.

[0032] The width dimension of the lateral reinforcing member 33, i.e., the dimension in the vertical direction, is 5 cm to 10 cm. The thickness of the lateral reinforcing member 33 is 0.2 mm to 1.0 mm. In this embodiment, the lateral reinforcing member 33 is made of the same material as the core material body 31 and the vertical reinforcing members 32a to 32e. However, the lateral reinforcing member 33 may be made of a different material than the core material body 31 and the vertical reinforcing members 32a to 32e.

[0033] In this embodiment, the proportion of the outer peripheral surface of the core body 31 that is occupied by the vertical reinforcing members 32a-32e and the horizontal reinforcing members 33 is 20% or less. In other words, the proportion of the outer peripheral surface of the core body 31 that is occupied by the exposed portion that is not provided with the reinforcing members is 80% or more. This makes it possible to reduce the weight of the core 30, and therefore the weight of the caddy bag 100.

[0034] (Disclosure items) <Item 1> A caddy bag comprising an outer body, a bottom provided at a lower end portion of the outer body, and a core material located inside the outer body, the core material having a cylindrical core material main body whose lower end portion is attached to the bottom and extends in a vertical direction, at least one vertical reinforcing member provided on the outer peripheral surface of the core material main body and which is a band-shaped member extending upward from the bottom, the upper end of which is located 20 cm to 40 cm above the bottom, and a horizontal reinforcing member which is a band-shaped, annular member provided on the outer peripheral surface of the core material main body and which extends circumferentially of the core material main body, the horizontal reinforcing member being connected to an upper end portion of the at least one vertical reinforcing member.

[0035] <Item 2> The caddy bag described in item 1, wherein the outer body has a handle for lifting the caddy bag and a back bag located on the opposite side of the handle, sandwiching the center of the outer body when viewed from above, and the at least one vertical reinforcing member includes a first vertical reinforcing member, and when the axis of the core body is used as a reference, the direction in which the widthwise center of the back bag is located when viewed from above is defined as a first angular direction, and the first vertical reinforcing member is located in the first angular direction.

[0036] <Item 3> The caddy bag described in item 2, wherein the at least one vertical reinforcing member includes a second vertical reinforcing member and a third vertical reinforcing member, and when the axis of the core body is used as a reference, an angle direction that is within 90 degrees clockwise from the first angular direction when viewed from above is defined as a second angular direction, and the second vertical reinforcing member is located on the second angular direction, and when the axis of the core body is used as a reference, an angle direction that is within 90 degrees counterclockwise from the first angular direction when viewed from above is defined as a third angular direction, and the third vertical reinforcing member is located on the third angular direction.

[0037] <Item 4> A caddy bag in any combination with any of items 1 to 3, wherein the proportion of the outer peripheral surface of the core body occupied by the at least one vertical reinforcing member and the horizontal reinforcing member is 20% or less.

[0038] <Item 5> A caddy bag in any combination with any of items 1 to 4, wherein the thickness of the core body is 0.5 mm to 1.2 mm, and the thicknesses of the vertical reinforcing members and the horizontal reinforcing members are 0.2 mm to 1.0 mm.

[0039] <Item 6> A caddy bag in any combination with any of items 1 to 5, wherein the thickness of the core body is set to 1.2 mm or less so that the total weight of the core is 700 g or less. [Explanation of symbols]

[0040] 10 Outer fuselage 12 Handle 14 Back bag 20 Bottom 30 Core material 31 Core body 32a First vertical reinforcing member 32b Second vertical reinforcing member 32c Third vertical reinforcing member 32d Fourth vertical reinforcing member 32e Fifth vertical reinforcement member 33 Horizontal reinforcement member 34 axis 100 Caddy Bag

Claims

1. An outer fuselage; A bottom provided at a lower end portion of the outer body; A core material located inside the outer body, The core material is A cylindrical core body having a lower end portion attached to the bottom and extending in the up-down direction; At least one vertical reinforcing member is provided on the outer peripheral surface of the core body, and is a band-shaped member extending upward from the bottom, the upper end of which is located 20 cm to 40 cm above the bottom; A caddy bag having a horizontal reinforcing member which is a band-shaped, annular member provided on the outer peripheral surface of the core body and extends along the circumferential direction of the core body, and which connects to an upper end portion of at least one of the vertical reinforcing members.

2. The outer fuselage is A handle for lifting the caddy bag; A back bag is provided on the opposite side of the handle across the center of the outer body when viewed from above, the at least one longitudinal stiffening member includes a first longitudinal stiffening member; A caddy bag as described in claim 1, wherein, when the axis of the core body is taken as a reference, the direction in which the widthwise center of the back bag is located when viewed from above is defined as a first angle direction, and the first vertical reinforcing member is located on the first angle direction.

3. the at least one longitudinal stiffening member includes a second longitudinal stiffening member and a third longitudinal stiffening member; When the axis of the core body is taken as a reference, an angle direction that is offset by an angle of 90 degrees or less in a clockwise direction from the first angular direction as viewed from above is defined as a second angular direction, and the second vertical reinforcing member is located on the second angular direction, A caddy bag as described in claim 2, wherein, when the axis of the core body is taken as a reference, an angle direction that is within 90 degrees counterclockwise from the first angle direction when viewed from above is defined as a third angle direction, and the third vertical reinforcing member is located on the third angle direction.

4. 2. The caddy bag according to claim 1, wherein the at least one vertical reinforcing member and the horizontal reinforcing members occupy 20% or less of the outer peripheral surface of the core body.

5. The thickness of the core body is 0.5 mm to 1.2 mm, 2. The golf bag according to claim 1, wherein the thickness of said vertical reinforcing members and said horizontal reinforcing members is 0.2 mm to 1.0 mm.

6. 2. The caddy bag according to claim 1, wherein the thickness of the core body is set to 1.2 mm or less so that the total weight of the core is 700 g or less.

Citation Information

Patent Citations

  • Core material for caddy bag

    JP1999019258A