Paddle gripping aid

Abstract

To provide a paddle gripping aid that increases the range of motion of a user's arms during the process of paddling a paddle. [Solution] The gripping aid of the present invention is a gripping aid for a paddle that is attached to the shaft of a paddle, and includes a protrusion that is sandwiched between a first finger and a second finger of a user of the paddle when the user grips the shaft, and an attachment part that attaches the protrusion to the shaft so that the protrusion protrudes from the shaft. The protrusion protrudes from an outer circumferential surface of the attachment part, and when the attachment part is attached to the shaft, the inner circumferential surface of the attachment part is in contact with the outer circumferential surface of the shaft and is configured to cover at least a portion of the shaft in the circumferential direction.

Description

[Technical field]

[0001] The present invention relates to a paddle gripping aid that assists in gripping a paddle. [Background technology]

[0002] Conventionally, a paddle for use in a canoe has been proposed that includes, for example, a shaft for rowing and a paddle section provided on at least one end of the shaft, with the paddle section having a flat paddle surface that is narrow on the shaft side and wide on the tip side, forming a roughly triangular shape (see, for example, Patent Document 1). The paddle is operated by the user holding the shaft with both hands. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-151196 A Summary of the Invention [Problem to be solved by the invention]

[0004] The more the user increases the range of motion of their arms when paddling the paddle, the greater the propulsion force the canoe can get. However, the range of motion of the arms varies from person to person. Also, it is quite difficult to consciously increase the range of motion of the arms.

[0005] In view of the above circumstances, the present invention aims to provide a paddle gripping aid that increases the range of motion of the user's arms during the process of paddling. [Means for solving the problem]

[0006] The paddle gripping aid of the present invention is a paddle gripping aid that is attached to the shaft of a paddle, and is characterized in that it comprises a protrusion that is sandwiched between the first finger and second finger of a user of the paddle when the user grips the shaft, and an attachment portion that attaches the protrusion to the shaft so that the protrusion protrudes from the shaft.

[0007] In the paddle gripping aid of the present invention, the direction parallel to the axial direction of the shaft in the protrusion is defined as the width direction of the protrusion, the protruding direction of the protrusion is defined as the height direction, and the direction perpendicular to both the width direction and the height direction is defined as the depth direction of the protrusion, and when the protrusion is viewed from the height direction in a state where it is pinched between the first finger and the second finger, the length in the depth direction from the end of the protrusion in the depth direction that is proximate to the interfinger pawl between the first finger and the second finger to the position where the protrusion has its maximum width in the width direction is within a range of 10 to 30 (mm), and the maximum width of the protrusion is within a range of 10 to 30 (mm).

[0008] In the paddle gripping aid of the present invention, when the direction parallel to the axial direction of the shaft in the protrusion is defined as the width direction of the protrusion, the protruding direction of the protrusion is defined as the height direction, and the direction perpendicular to both the width direction and the height direction is defined as the depth direction of the protrusion, the protrusion has a first region that is contacted by the first finger and a second region that is contacted by the second finger when the protrusion is pinched between the first finger and the second finger from both sides in the width direction, and is characterized in that in at least a part of the section in the depth direction from the end of the protrusion in the depth direction proximate to the interfinger webbing between the first finger and the second finger to the position where the protrusion has its maximum width in the width direction, the first region and the second region are inclined with respect to the depth direction so that the width of the protrusion in the width direction is smaller near the end in the depth direction than the end distal to the end.

[0009] In the paddle gripping aid of the present invention, a direction in the protrusion that is parallel to the axial direction of the shaft is defined as a width direction of the protrusion, a protruding direction of the protrusion is defined as a height direction, and a direction perpendicular to both the width direction and the height direction is defined as a depth direction of the protrusion, and when the protrusion is viewed in a state where it is pinched between the first finger and the second finger from the depth direction, the protrusion has a first region facing the first finger side and a second region facing the second finger side, and the first and second regions are such that in at least a portion of a section along the height direction of the protrusion, the width of the protrusion is wider in the height direction at a position closer to the base of the protrusion than at a position distal to the base. Large The present invention is characterized in that the height direction is inclined so as to be inclined relative to the height direction.

[0010] In the paddle gripping aid of the present invention, the direction in the protrusion that is parallel to the axial direction of the shaft is defined as the width direction of the protrusion, the protruding direction of the protrusion is defined as the height direction, and the direction perpendicular to both the width direction and the height direction is defined as the depth direction of the protrusion, and when the paddle and the protrusion are viewed from the axial direction of the shaft, a first region in which a first virtual line is located and a second region opposite the first region are defined, the first and second ends of the protrusion in the depth direction being located in the second region, the second region being defined as a boundary between a first virtual line connecting both ends of the paddle's blade in a direction parallel to the depth direction and a second virtual line passing through the central axis of the shaft.

[0011] In the paddle gripping aid of the present invention, when the paddle and the protrusion are viewed from the axial direction of the shaft, both ends of the protrusion in the depth direction are located in a first circumferential range in the circumferential direction centered on the central axis of the shaft, and the first circumferential range, in the second region, is a circumferential range of 30 degrees or more and 150 degrees or less with respect to the second virtual line centered on the central axis of the shaft.

[0012] In the paddle gripping aid of the present invention, when the paddle and the protrusion are viewed from the axial direction of the shaft, one end of the protrusion in the depth direction is located in a second circumferential range in the circumferential direction centered on the central axis of the shaft, and the other end of the protrusion in the depth direction is located in a third circumferential range in the circumferential direction centered on the central axis of the shaft, the second circumferential range is a circumferential range in the second region that is 30 degrees or more and 70 degrees or less with respect to the second virtual line centered on the central axis of the shaft, and the third circumferential range is a circumferential range in the second region that is 110 degrees or more and 150 degrees or less with respect to the second virtual line centered on the central axis of the shaft.

[0013] In the paddle gripping aid of the present invention, the protrusion protrudes from the outer peripheral surface of the mounting portion, and the mounting portion is configured such that when attached to the shaft, the inner peripheral surface of the mounting portion contacts the outer peripheral surface of the shaft while covering at least a portion of the circumference of the shaft. Effect of the Invention

[0014] The paddle gripping aid of the present invention has the excellent effect of increasing the range of motion of the user's arms during the process of paddling. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view of a paddle equipped with a paddle gripping aid according to an embodiment of the present invention. FIG. [Diagram 2] 1A is an enlarged view of the paddle gripping aid of the present embodiment attached to a paddle, and FIG. 1B is an enlarged view of a modified example of the paddle gripping aid of the present embodiment attached to a paddle. [Diagram 3](A) and (B) are cross-sectional views (cut in a direction perpendicular to the axis of the paddle shaft) showing the time series of the attachment of the paddle gripping aid of this embodiment to a paddle. (C) is a cross-sectional view of a modified example of the paddle gripping aid of this embodiment attached to a paddle, cut in a direction perpendicular to the axis of the paddle shaft. (D) is a cross-sectional view of another modified example of the paddle gripping aid of this embodiment attached to a paddle, cut in a direction perpendicular to the axis of the paddle shaft. [Figure 4] 1 is a diagram showing a paddle equipped with a paddle gripping aid of this embodiment held by a user, viewed from above in the height direction of the protrusion of the paddle gripping aid. FIG. [Diagram 5] 13(A) and 13(B) are views of a paddle equipped with a modified example of the paddle gripping aid of this embodiment being held by a user, viewed from above in the height direction of the protrusion of the paddle gripping aid. [Figure 6] 1A is a view of a paddle with the paddle gripping aid of the present embodiment attached held by a user, viewed from the depth direction of the protrusion of the paddle gripping aid, and FIG. 1B is a view of a paddle with a modified version of the paddle gripping aid of the present embodiment attached held by a user, viewed from the depth direction of the protrusion of the paddle gripping aid. [Figure 7] 1 is a diagram of a paddle equipped with a paddle gripping aid as viewed from the axial direction of the paddle shaft. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The accompanying drawings are an example of an embodiment of the present invention, and in the drawings, parts with the same reference numerals represent the same objects. Also, the shapes and dimensional ratios of each part in each drawing are not necessarily accurate.

[0017] <Overall composition> The paddle gripping aid 1 in the embodiment of the present invention is for aiding a user in gripping the shaft 110 of a paddle 100. The paddle 100 is used in a small boat such as a canoe, and has blades 120 at both ends of the shaft 110. The blades 120 at both ends may or may not have an angle difference in the circumferential direction of the central axis 112 of the shaft 110. The shape of the blade 120 in FIG. 1 is an example, and other shapes are also possible. The paddle gripping aid 1 can also be applied to a type of paddle having the blade 120 at one end of the shaft 110.

[0018] 1, the paddle gripping aid 1 is attached to a shaft 110. Specifically, the paddle gripping aid 1 is attached to a position where a user of the paddle 100 grips the paddle 100. The paddle gripping aid 1 in this embodiment has an attachment portion 2 and a protrusion portion 3.

[0019] <Mounting part> The mounting part 2 will be described with reference to Fig. 2. The mounting part 2 is attached to the shaft 110. When the mounting part 2 is attached to the shaft 110, the mounting part 2 is configured to cover at least a part of the circumferential direction of the shaft 110 while the inner circumferential surface of the mounting part 2 contacts the outer circumferential surface of the shaft 110. The mounting part 2 presses the shaft 110 radially inward by elastic force. Unless an external force of a predetermined value or more is applied to the mounting part 2 along the circumferential direction of the shaft 110, the mounting part 2 does not rotate relative to the shaft 110.

[0020] Specifically, the attachment part 2 has a member whose cross section is an open ring shape, for example, as shown in Fig. 3(B). The open ring shape corresponds to the cross-sectional shape of the shaft 110. When the cross section of the shaft 110 is circular, the open ring shape is, for example, C-shaped, and the above-mentioned member of the attachment part 2 is composed of a C-shaped member 20. Below, an example will be described in which the above-mentioned member is composed of a C-shaped member 20.

[0021] The C-shaped member 20 is configured to be elastically deformable. When attaching the C-shaped member 20 to the shaft 110, as shown in FIG. 3(A), an external force is applied to spread the C-shaped member 20 so that both ends 21A, 21B of the C-shaped member 20 are separated from each other. Then, the shaft 110 is inserted into the surrounding area S surrounded by the C-shaped member 20 from the area between both ends 21A, 21B of the C-shaped member 20. When the external force is released, the C-shaped member 20 returns to its original shape due to a restoring force caused by elastic deformation, and the inner circumferential surface comes into contact with the shaft 110 and presses the shaft 110. As a result, the shaft 110 is fitted into the inner circumferential side of the C-shaped member 20, and the attachment of the C-shaped member 20 to the shaft 110 is completed.

[0022] The attachment portion 2 is not limited to the above embodiment, and may be formed of a closed annular member (not shown) whose cross section extends around the entire circumference of the shaft 110 in the circumferential direction.

[0023] Then, an external force of a predetermined magnitude or more is applied to the mounting part 2 along the circumferential direction of the shaft 110 to rotate the mounting part 2 relative to the shaft 110, thereby positioning the mounting part 2. Once the positioning of the mounting part 2 has been completed, it is preferable to fix the mounting part 2 to the shaft 110.

[0024] In order to fix the mounting portion 2 to the shaft 110, the mounting portion 2 may be fixed to the shaft 110 using a fixing member such as tape, or the mounting portion 2 may be fixed by providing a fixing mechanism 22 as described below.

[0025] As shown in FIG. 3(C), the fixing mechanism 22 has, for example, a first protruding piece 220 that is continuous with one circumferential end of the C-shaped member 20 and protrudes from that one end, a second protruding piece 222 that is continuous with the other circumferential end of the C-shaped member 20 and protrudes from the other end, and a fixing member 224.

[0026] The first protruding piece 220 and the second protruding piece 222 face each other while protruding in a direction away from the enclosed area S surrounded by the C-shaped member 20. The fixing member 224 engages with the first protruding piece 220 and the second protruding piece 222 and brings the first protruding piece 220 and the second protruding piece 222 closer to each other in the opposing direction of the first protruding piece 220 and the second protruding piece 222, thereby increasing the pressing force of the C-shaped member 20 against the shaft 110 and firmly restricting the relative movement of the attachment part 2 with respect to the shaft 110.

[0027] The fixing member 224 is composed of, for example, a screw 224A and a nut 224B. In this case, the screw is passed through holes in the first protruding piece 220 and the second protruding piece 222, and the C-shaped member 20 is fixed to the shaft 110 by fastening with the nut.

[0028] The fixing member and fixing mechanism 22 are not particularly limited in aspect, and all fixing members and fixing mechanisms 22 capable of restricting the relative movement of the attachment portion 2 with respect to the shaft 110 are included in the scope of the present invention.

[0029] The above mounting portion 2 is one example, and the scope of the present invention includes any mounting portion 2 that can mount the protrusion 3 to the shaft 110 so that the protrusion 3 protrudes from the shaft 110. The mounting portion 2 may be formed, for example, of an adhesive means 24 (see FIG. 3(D)) such as an adhesive or tape that bonds the protrusion 3 to the shaft 110, or may be formed of another fixing mechanism that fixes the protrusion 3 to the shaft 110.

[0030] <Protrusion> The protrusion 3 will be described with reference to Figs. 2 to 4. As shown in Figs. 2 and 3, the protrusion 3 protrudes from the shaft 110. In this embodiment, the protrusion 3 protrudes from the outer circumferential surface of the attachment portion 2, but this is not limited thereto, and the protrusion starting point of the protrusion 3 may be at another position depending on the aspect of the attachment portion 2. In this embodiment, when the attachment portion 2 is attached to the shaft 110, the protrusion 3 protrudes in the radial direction of the shaft 110, but this is not limited thereto, and the protrusion 3 may protrude in another direction as long as it protrudes from the outer circumferential surface around the axial direction of the shaft 110.

[0031] Here, as shown in Figures 3 and 4, the protruding direction of the protrusion 3 (the axial direction of the central axis of the protrusion 3) is defined as the height direction H of the protrusion 3, the direction parallel to the axial direction of the shaft 110 is defined as the width direction W of the protrusion 3, and the direction perpendicular to both the height direction H and width direction W of the protrusion 3 is defined as the depth direction D of the protrusion 3.

[0032] When a user of the paddle 100 grips the shaft 110, as shown in FIG. 4, the user pinches the protrusion 3 between his / her finger (first finger) 920 and finger (second finger) 922 in the width direction W of the protrusion 3 while bringing the pads of the user's fingers into contact with the attachment portion 2 and the shaft 110. The two adjacent fingers (fingers 920, 922) with which the user pinches the protrusion 3 are preferably the middle finger and ring finger. This is because widening the space between the ring finger and middle finger connects the fascia on the little finger side with the trunk, expanding the range of motion of the arm. Increasing the range of motion of the arm allows the movement range of the paddle to be expanded, thereby improving the propulsive force of a small boat such as a canoe.

[0033] For example, when the protrusion 3 is pinched between two adjacent fingers 920, 922, as shown in FIG. 4, it has a first region 30 that is contacted by one adjacent finger 920 and a second region 32 that is contacted by the other adjacent finger 922.

[0034] Here, attention is focused on an interfinger webbing 924 formed between two adjacent fingers 920, 922, and a section E along the depth direction D of the protrusion 3 from the end 3A of the protrusion 3 that is proximal in the depth direction D of the protrusion 3 to the maximum width part 34. Incidentally, the maximum width part 34 refers to the part where the width of the protrusion 3 in the width direction W is maximum when the protrusion 3 is viewed in a plane from the height direction H of the protrusion 3.

[0035] In the section E, the first region 30 and the second region 32 preferably have an inclined portion inclined with respect to the depth direction D such that the width of the protrusion 3 is smaller on the side closer to the end 3A of the protrusion 3 than on the side farther from the end 3A in the depth direction D of the protrusion 3. Here, the inclined portion of the first region 30 is defined as the first inclined portion 30A, the inclined portion of the second region 32 is defined as the second inclined portion 32A, the end portions of the first inclined portion 30A and the second inclined portion 32A proximal to the end 3A are defined as the first end, and the end portions proximal to the maximum width portion 34 are defined as the second end. When the protrusion 3 is viewed in a plan view from the height direction H of the protrusion 3, the first inclined portion 30A is inclined so that the side distal to the end 3A of the first inclined portion 30A is closer to the one end 2A of the mounting portion 2 in the width direction than the proximal side, based on the one end 2A of the mounting portion 2 in the width direction proximal to the first inclined portion 30A. Furthermore, with respect to the other end 2B in the width direction of the mounting portion 2 proximal to the second inclined portion 32A, the second inclined portion 32A is inclined so that the side distal to the end portion 3A of the second inclined portion 32A is closer to the other end 2B in the width direction of the mounting portion 2 than the proximal side. Note that the width direction of the mounting portion 2 refers to a direction parallel to the axial direction of the shaft 110 when the mounting portion 2 is attached to the shaft 110.

[0036] It is preferable that the first inclined portion 30A and the second inclined portion 32A have the same inclination angle with respect to the depth direction D. Since each of the two fingers 920, 922 spreads out from its base, if the first region 30 and the second region 32 are inclined as described above, no burden is placed on the two fingers 920, 922.

[0037] In addition, in a section F from the end point (maximum width part 34) of section E to the end 3B opposite to the end 3A of the protrusion 3, the two adjacent fingers 920, 922 do not contact the protrusion 3 and may have any shape (see FIG. 5(A)). Also, as shown in FIG. 5(B), section F may be omitted.

[0038] Considering the length of the user's finger, the length of the above section E in the depth direction D is preferably within the range of 10 to 30 (mm), more preferably within the range of 10 to 20 (mm). Moreover, the length of the maximum width part 34 (maximum width of the protrusion 3) is preferably within the range of 10 to 30 (mm), more preferably within the range of 15 to 20 (mm).

[0039] In addition, as shown in FIG. 6(A), when the protrusion 3 is viewed from the depth direction D of the protrusion 3, in all or part of a section G along the height direction H of the protrusion 3 from the base of the protrusion 3 (the outer peripheral surface of the mounting portion 2) to the top portion 3C of the protrusion 3, the width of the protrusion 3 is narrower on the side closer to the top portion 3C of the protrusion 3 in the height direction H of the protrusion 3 than on the side farther from the top portion 3C of the protrusion 3. Small The mounting portion 2 has a pair of inclined portions 35, 36 inclined with respect to the height direction H so that the inclined portion 35 is closer to the one end 2A of the mounting portion 2 in the width direction than the proximal side, with respect to one end 2A of the mounting portion 2 in the width direction that is proximal to the inclined portion 35. The inclined portion 36 is inclined with respect to the other end 2B of the mounting portion 2 in the width direction that is proximal to the inclined portion 36, with respect to the other end 2B of the mounting portion 2 in the width direction that is proximal to the inclined portion 36. The inclination angles of the inclined portions 35, 36 with respect to the height direction H are preferably the same.

[0040] Examples of the shape of the protrusion 3 configured as described above include, but are not limited to, a hemispherical shape or a semi-elliptical spherical shape as shown in Fig. 2(A). For example, examples of the shape of the protrusion 3 include an elliptical cylinder shape or a cylindrical shape as shown in Fig. 2(B).

[0041] 6(B), stoppers 4A, 4B may be provided protruding from the top 3C of the protrusion 3 or its vicinity on both sides of the protrusion 3 in the width direction W. A finger 920 or the like fits in an area R1 surrounded by the stopper 4A, the protrusion 3, and the mounting part 2, and a finger 922 or the like fits in an area R2 surrounded by the stopper 4B, the protrusion 3, and the mounting part 2. The stoppers 4A, 4B restrict the fingers 920, 922 from coming off the paddle gripping aid 1.

[0042] <Extending range of protrusions> The extension range of the protrusion 3 in the circumferential direction of the shaft 110 will be described with reference to Fig. 7. Fig. 7 shows a paddle 100 equipped with a paddle gripping aid 1 of this embodiment when viewed from the axial direction of the shaft 110. Note that while the blade 120 and the paddle gripping aid 1 on the front side of the paddle 100 when viewed from the axial direction of the shaft 110 are shown, the blade 120 and the paddle gripping aid 1 on the rear side are omitted from the illustration.

[0043] Here, when viewed from the axial direction of the shaft 110, a virtual dotted line (first virtual dotted line) 126 connecting both ends of the blade 120 on the front side of the paddle 100 in a direction parallel to the depth direction D of the protrusion 3 and a virtual dotted line (second virtual dotted line) 130 passing through the central axis 112 of the shaft 110 is used as a boundary to define a first region Q1 where the virtual dotted line 126 is located, and a second region Q2 on the opposite side to the first region Q1. The surface of the blade 120 that paddles the water is the surface 121A, and when the paddle 100 and the protrusion 3 are viewed from the axial direction of the shaft 110, the protrusion 3 is located on the opposite surface 121B side of the blade 120 opposite to the surface 121A. Therefore, when the paddle 100 and the protrusion 3 are viewed from the axial direction of the shaft 110, one end 37 and the other end 38 in the depth direction D of the protrusion 3 are located in the second region Q2. In other words, the protrusion 3 is preferably positioned in a circumferential range on the second region Q2 side in the circumferential direction centered on the central axis 112 of the shaft 110 (hereinafter referred to as the second region side circumferential range).

[0044] Furthermore, it is preferable that one end 37 and the other end 38 of the protrusion 3 in the depth direction D are within a circumferential range of 30 degrees to 150 degrees with respect to a virtual dotted line (second virtual dotted line) 130, centered on the central axis 112 of the shaft 110, within the second region side circumferential range (hereinafter referred to as a first circumferential range). The first circumferential range corresponds to the circumferential range including P2, P4, and P3 in FIG. 7. If one end 37 and the other end 38 of the protrusion 3 in the depth direction D are within the first circumferential range, the length of the protrusion 3 in the depth direction D becomes easy for the user to use.

[0045] Furthermore, it is preferable that one end 37 of the protrusion 3 in the depth direction D is within the second region side circumferential range, particularly within a circumferential range P2 of 30 degrees or more and 70 degrees or less with respect to a virtual dotted line (second virtual dotted line) 130 about the central axis 112 of the shaft 110 (hereinafter referred to as the second circumferential range). The second circumferential range P2 corresponds to the circumferential range of P2 in Fig. 7. If one end 37 of the protrusion 3 in the depth direction D is within the second circumferential range, the length of the protrusion 3 in the depth direction D becomes easy for the user to use.

[0046] Furthermore, it is preferable that the other end 38 of the protrusion 3 in the depth direction D is within the second region side circumferential range, particularly within a circumferential range P3 of 110 degrees or more and 150 degrees or less with respect to an imaginary dotted line (second imaginary dotted line) 130 about the central axis 112 of the shaft 110 (hereinafter referred to as a third circumferential range). The third circumferential range P3 corresponds to the circumferential range of P3 in Fig. 7. If the other end 38 of the protrusion 3 in the depth direction D is within the third circumferential range, the length of the protrusion 3 in the depth direction D becomes easy for the user to use.

[0047] 7, the imaginary dotted orthogonal line 132 is a dotted line that passes through the central axis 112 of the shaft 110 and is perpendicular to the imaginary dotted line 130. The imaginary dotted line 134 passes through the central axis 112 of the shaft 110, is inclined at 30 degrees with respect to the imaginary dotted line 130 on a side closer to one end 122 of the blade 120 than the imaginary dotted line 132, and is inclined at -60 degrees with respect to the imaginary dotted line 132. The imaginary dotted line 136 passes through the central axis 112 of the shaft 110, is inclined at 150 degrees with respect to the imaginary dotted line 130 on a side closer to the other end 124 of the blade 120 than the imaginary dotted line 132, and is inclined at 60 degrees with respect to the imaginary dotted line 132. In addition, the imaginary dotted line 138 passes through the central axis 112 of the shaft 110, is inclined at 70 degrees with respect to the imaginary dotted line 130 on a side closer to one end 122 of the blade 120 than the imaginary dotted line 132, and is inclined at −20 degrees with respect to the imaginary dotted line 132. The imaginary dotted line 140 passes through the central axis 112 of the shaft 110, is inclined at 110 degrees with respect to the imaginary dotted line 130 on a side closer to the other end 124 of the blade 120 than the imaginary dotted line 132, and is inclined at 20 degrees with respect to the imaginary dotted line 132.

[0048] 7, a fourth circumferential range P4 between the imaginary dotted lines 138 and 140, a fifth circumferential range P5 between the imaginary dotted lines 130 and 134, and a sixth circumferential range P6 between the imaginary dotted lines 130 and 136 are circumferential ranges in which the ends 37 and 38 of the protrusions 3 do not have to be located. In the fourth circumferential range P4, the length of the protrusions 3 in the depth direction D may be too small, which may make it difficult for the user to use. In the fifth circumferential range P5 and the sixth circumferential range P6, the extent of the protrusions 3 may be too large, which may make it difficult for the user to use.

[0049] The fourth circumferential range P4 is a circumferential range in the second region Q2 that is more than 70 degrees and less than 110 degrees with respect to the imaginary dotted line 130 and is centered on the central axis 112 of the shaft 110. The fifth circumferential range P5 is a circumferential range in the second region Q2 that is more than 0 degrees and less than 30 degrees with respect to the imaginary dotted line 130 and is centered on the central axis 112 of the shaft 110. The sixth circumferential range P6 is a circumferential range in the second region Q2 that is more than 150 degrees and less than 180 degrees with respect to the imaginary dotted line 130 and is centered on the central axis 112 of the shaft 110.

[0050] The above description can also be applied to the blade 120 and the paddle gripping aid 1 on the far side of the paddle 100 when viewed from the axial direction of the shaft 110. Furthermore, the shapes and positional relationship between the shaft 110 and the blade 120 of the paddle 100 when viewed from the axial direction of the shaft 110 shown in Fig. 7 are only examples, and the above description can of course be applied to other aspects as well.

[0051] Incidentally, the paddle gripping aid of the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made within the scope of the gist of the present invention. [Explanation of symbols]

[0052] 1 Paddle gripping aid 2 Mounting part 3 Protrusion 4A, 4B Stopper 20 C-shaped member 22 Fixing mechanism 30 First area 30A First slope part 32 Second area 32A Second slope part 34 Maximum width part 35,36 Slope 37 One end of the protrusion 38 Other end of protrusion 100 Paddle 110 Shaft 112 Shaft axis 120 Blade 122 One end of the blade 124 Other end of the blade 126,130,138,140 Virtual dotted line 132 Virtual orthogonal dotted line 134,136 Imaginary bisection line 220 First protruding piece 222 Second protruding piece 224 Fixing member 920,922 fingers

Claims

1. A paddle gripping aid attached to the shaft of a paddle, a protrusion that is sandwiched between a first finger and a second finger of a user of the paddle when the user grips the shaft; an attachment portion that attaches the protrusion to the shaft so that the protrusion protrudes from the shaft; Equipped with In the protrusion, a direction parallel to the axial direction of the shaft is defined as a width direction of the protrusion, a protruding direction of the protrusion is defined as a height direction, and a direction perpendicular to both the width direction and the height direction is defined as a depth direction of the protrusion. When the protrusion is viewed in a state where it is sandwiched between the first finger and the second finger from the height direction, A length in the depth direction from an end of the protrusion in the depth direction proximate to an inter-finger paw between the first finger and the second finger to a position where the protrusion has a maximum width in the width direction is within a range of 10 to 30 (mm); The maximum width of the protrusion is within a range of 10 to 30 mm. Gripping aid for paddles.

2. A paddle gripping aid attached to the shaft of a paddle, comprising: a protrusion that is sandwiched between a first finger and a second finger of a user of the paddle when the user grips the shaft; an attachment portion that attaches the protrusion to the shaft so that the protrusion protrudes from the shaft; Equipped with When the direction of the protrusion that is parallel to the axial direction of the shaft is defined as the width direction of the protrusion, the protruding direction of the protrusion is defined as the height direction, and the direction perpendicular to both the width direction and the height direction is defined as the depth direction of the protrusion, the protrusion has a first region that is in contact with the first finger and a second region that is in contact with the second finger when the protrusion is sandwiched between the first finger and the second finger from both sides in the width direction, In at least a portion of the section in the depth direction from an end of the protrusion in the depth direction proximate to the inter-finger paw between the first finger and the second finger to a position where the protrusion is at its maximum width in the width direction, The first region and the second region are inclined with respect to the depth direction such that a width of the protrusion in the width direction is smaller on a side closer to the end portion in the depth direction than on a side farther from the end portion in the depth direction. Gripping aid for paddles.

3. In the protrusion, a direction parallel to the axial direction of the shaft is defined as a width direction of the protrusion, a protruding direction of the protrusion is defined as a height direction, and a direction perpendicular to both the width direction and the height direction is defined as a depth direction of the protrusion, and when the protrusion is viewed from the depth direction in a state where it is pinched between the first finger and the second finger, the protrusion has a first region facing the first finger side and a second region facing the second finger side, The first region and the second region are inclined with respect to the height direction such that the width of the protrusion is larger in the height direction in a region closer to the base of the protrusion than in a region farther from the base in the height direction in at least a portion of the section along the height direction of the protrusion.

3. A paddle gripping aid as claimed in claim 1 or 2.

4. A gripping aid for a paddle attached to a shaft of the paddle, comprising: a protrusion that is sandwiched between a first finger and a second finger of a user of the paddle when the user grips the shaft; an attachment portion that attaches the protrusion to the shaft so that the protrusion protrudes from the shaft; Equipped with A direction parallel to the axial direction of the shaft in the protrusion is defined as a width direction of the protrusion, a protruding direction of the protrusion is defined as a height direction, and a direction perpendicular to both the width direction and the height direction is defined as a depth direction of the protrusion, When the paddle and the protrusion are viewed from the axial direction of the shaft, a first region where the first virtual line is located and a second region on the opposite side to the first region are defined by a second virtual line that is parallel to a first virtual line connecting both ends of the blade of the paddle in a direction parallel to the depth direction and passes through a central axis of the shaft, Both ends of the protrusion in the depth direction are located in the second region. Gripping aid for paddles.

5. When the paddle and the protrusion are viewed from the axial direction of the shaft, Both ends of the protrusion in the depth direction are located in a first circumferential range in a circumferential direction centered on a central axis of the shaft, The first circumferential range is a circumferential range of 30 degrees or more and 150 degrees or less with respect to the second virtual line centered on the central axis of the shaft in the second region.

5. The paddle gripping aid according to claim 4.

6. When the paddle and the protrusion are viewed from the axial direction of the shaft, One end of the protrusion in the depth direction is located in a second circumferential range in a circumferential direction centered on a central axis of the shaft, the other end of the protrusion in the depth direction is located in a third circumferential range in the circumferential direction centered on the central axis of the shaft, the second circumferential range is a circumferential range in the second region that is 30 degrees or more and 70 degrees or less with respect to the second virtual line centered on the central axis of the shaft, The third circumferential range is a circumferential range in the second region that is 110 degrees or more and 150 degrees or less with respect to the second virtual line centered on the central axis of the shaft. The paddle gripping aid according to claim 5.

7. The protrusion protrudes from an outer circumferential surface of the mounting portion, The mounting portion is configured such that, when attached to the shaft, an inner circumferential surface of the mounting portion contacts an outer circumferential surface of the shaft and covers at least a portion of the shaft in a circumferential direction. A paddle gripping aid as claimed in any one of claims 1, 2 and 4.

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