WO2024014369A1

WO2024014369A1 - Lane rope float

Info

Publication number: WO2024014369A1
Application number: PCT/JP2023/024849
Authority: WO
Inventors: 昭洋川島
Original assignee: 岐阜プラスチック工業株式会社
Priority date: 2022-07-12
Filing date: 2023-07-05
Publication date: 2024-01-18

Abstract

Provided is a lane rope float that enables a person in a pool to easily rest by gripping the float with a hand or hanging an arm thereon.　Provided is a lane rope float 100 formed from a synthetic resin material that is attached to a rope R via a cylindrical part 200 and partitions a pool into lanes, the lane rope float 100 being characterized in that a recessed support part 120 capable of supporting a portion of a body is formed therein.

Description

float for lane rope

The present invention relates to a lane rope float installed in a pool or the like.

Conventionally, various types of lane rope floats have been known. For example, the lane rope float disclosed in Patent Document 1 has a cylindrical shape as a whole, and has a cylindrical part in the center through which the rope is inserted. , a plurality of vanes protruding parallel to the rope, and an outer circumferential wall connected to surround the vanes. The waves created by people in the pool of each lane are taken inside the lane rope float and dissipated by the blades and outer peripheral wall.

However, the lane rope float disclosed in Patent Document 1 has a cylindrical shape surrounded by a peripheral wall on the outside, so it is difficult to hold it with your hands or hang your arm around it, making it difficult for people swimming in the pool to hold it. People in the pool, such as people walking in the pool or playing in the pool, were unable to take a break because they were holding on to the lane rope floats.

In addition, the lane rope float disclosed in Patent Document 2 is designed to be used when a person in the pool stands, takes a break, or is about to drown and holds the float with their hands or hangs their arm around it. Since it rotates easily, there is a risk of it slipping off the lane rope float, which is dangerous. Therefore, people in the pool, such as people swimming, walking in the pool, and playing in the pool, could not take a rest in peace by grabbing the lane rope float.

Registered utility model No. 3055245 Actual public school 50-42584

Therefore, in view of the above problems, the present invention provides a lane rope float that allows people in the pool to easily take a break by holding it with their hands or hanging their arms on it.

In order to solve the above problems, a lane rope float according to claim 1 of the present invention is provided with a lane rope float that is attached to a rope through a cylindrical part to partition each lane of a pool, and is made of a synthetic resin material. The float is characterized by being formed with a concave support part that can support a part of the body.

According to the above features, people in the pool can easily rest by grasping the concave support part with their hands or hanging their arms on it.

Furthermore, in the lane rope float according to claim 2 of the present invention, the outer diameter of the lane rope float is larger at the center side where the concave support portion is formed than at the outer maximum diameter portion where the outer diameter is the largest. It is characterized by being smaller.

According to the above feature, when a person in the pool grasps the concave support with their hands or hangs their arm, their hands and arms are difficult to come off from the concave support, and the concave support is stable in the pool. I can support people.

Further, the lane rope float according to claim 3 of the present invention is characterized in that it is blow molded using a soft synthetic resin material.

According to the above features, the lane rope float is easily deformed, and it is easy for people in the pool to grasp the concave support part with their hands or hang their arms on it.

Further, in the lane rope float according to claim 4 of the present invention, the cylindrical portion is made of a hard material and a soft material that is softer than the hard material, and the soft material is arranged so that the rope faces the rope. It is characterized by being placed on the side where the

According to the above feature, it is easy for people in the pool to grasp the concave support part with their hands or hang their arms on it. Furthermore, according to the above feature, since the friction between the rope and the cylindrical part increases, the lane rope float can move around the rope (specifically, the lane rope float can rotate around the rope). Also, horizontal displacement of the lane rope float in the longitudinal direction of the rope can be prevented. As a result, people in the pool who swim in each lane can hold on to the lane rope floats and rest in a stable position.

Furthermore, in the lane rope float according to claim 5 of the present invention, the cylindrical portion is made of a hard material and a soft material that is softer than the hard material, and the soft material is arranged so that the rope faces the rope. It is characterized by being placed on the side where the

Furthermore, the lane rope float according to claim 6 of the present invention is characterized in that the cylindrical portion is made of a soft material.

Furthermore, the lane rope float according to claim 7 of the present invention is characterized in that the cylindrical portion is made of a soft material.

Furthermore, in the lane rope float according to claim 8 of the present invention, rotation suppressing members are attached to both ends of the cylindrical part, and the rotation suppressing member is made of a material that is smaller than the material constituting the cylindrical part. It is characterized by being made of a soft material.

According to the above feature, it is easy for people in the pool to grasp the concave support part with their hands or hang their arms on it. Furthermore, according to the above feature, since the friction between the rope and the rotation suppressing member increases, the lane rope float can move around the rope (specifically, the lane rope float can rotate around the rope). Also, horizontal displacement of the lane rope float in the longitudinal direction of the rope can be prevented. As a result, people in the pool who swim in each lane can hold on to the lane rope floats and rest in a stable position.

Further, in the lane rope float according to claim 9 of the present invention, rotation suppressing members are attached to both ends of the cylindrical part, and the rotation suppressing member is made of a material that is made of a material that is smaller than the material that constitutes the cylindrical part. It is characterized by being made of a soft material.

In order to solve the above problems, a lane rope float according to claim 10 of the present invention is provided with a lane rope float that is attached to a rope through a cylindrical part to partition each lane of a pool, and is made of a synthetic resin material. A locking portion capable of locking the rope is disposed inside the cylindrical portion, and the locking portion has an uneven shape in a circumferential direction of the cylindrical portion. It is characterized by the presence of

According to the above feature, the locking portion having the uneven shape prevents the rope from moving within the cylindrical portion, and effectively prevents the lane rope float from rotating. Therefore, people in the pool can easily take a break with peace of mind by holding the lane rope float with their hands or hanging their arms on it.

Furthermore, the lane rope float according to claim 11 of the present invention is characterized in that the locking portion includes an inclined wall that slopes inward as it moves away from the center of the cylindrical portion.

According to the above feature, when a person in the pool holds the lane rope float with their hands or hangs their arm around it, the entire lane rope float is pushed downward and moves, causing the sloped wall to turn inward. Since the lane rope float is elastically deformed, the area of contact with the rope increases, the rope is more strongly locked in the locking part, and rotation of the lane rope float can be effectively prevented. Therefore, people in the pool can easily take a break with peace of mind by holding the lane rope float with their hands or hanging their arms on it.

Furthermore, in the lane rope float according to claim 12 of the present invention, the cylindrical portion is blow-molded using a synthetic resin material, and the wall thickness of a part of the cylindrical portion is greater on the end portion than on the center side. It is characterized by being thinner on the sides.

According to the above feature, since the thinner end side can be flexibly and elastically deformed, the rope and the locking part on the end side can be easily locked, and the locking part and the rope can be brought into closer contact. Therefore, the rope is more strongly locked to the locking portion, and rotation of the lane rope float can be effectively prevented. Therefore, people in the pool can easily take a break with peace of mind by holding the lane rope float with their hands or hanging their arms on it.

According to the lane rope float of the present invention, people in the pool can easily take a break by holding it with their hands or hanging their arms on it.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective view of a lane rope float according to Embodiment 1 of the present invention. (a) is a side view of the lane rope float, and (b) is a front view of the lane rope float. (a) is a cross-sectional view taken along the line AA in FIG. 2(a), and (b) is an enlarged cross-sectional view around the end portion in FIG. 3(a). FIG. 2 is an overall perspective view of a lane rope float according to Embodiment 2 of the present invention. (a) is a side view of the lane rope float, and (b) is a front view of the lane rope float. (a) is a BB sectional view of FIG. 5(a), and (b) is an enlarged sectional view of the vicinity of the end portion of FIG. 6(a). FIG. 2 is a plan view of the lane rope float of Embodiment 1 and the lane rope float of Embodiment 2 attached to a rope. (a) is a sectional view taken along the line CC in FIG. 7, and (b) is an enlarged sectional view of the vicinity of the end of the lane rope float shown in FIG. 8(a). It is an overall perspective view of the float for lane ropes concerning Embodiment 3 of the present invention. It is a side view of the float for lane ropes. (a) is a cross-sectional view taken along the line DD in FIG. 10, and (b) is an enlarged cross-sectional view around the end of FIG. 11(a). It is an overall perspective view of the float for lane ropes concerning Embodiment 4 of the present invention. (a) is a side view of the lane rope float, and (b) is a perspective view showing only the cylindrical portion. (a) is a front view of the lane rope float, and (b) is an enlarged front view of the periphery of the cylindrical part. (a) is a front view of the lane rope float in a state where the lane rope float is attached to the rope, and (b) is an enlarged front view of the periphery of the cylindrical part. It is a front view which expanded the periphery of the cylindrical part of the float for lane ropes concerning Embodiment 5 of this invention. It is a front view which expanded the cylindrical part periphery of the float for lane ropes concerning Embodiment 6 of this invention. It is a front view which expanded the cylindrical part periphery of the float for lane ropes concerning Embodiment 7 of this invention. (a) is a perspective view showing only the cylindrical part of a lane rope float according to Embodiment 8 of the present invention, and (b) is an enlarged front view of the periphery of the cylindrical part of the lane rope float. (a) is an enlarged perspective view of the periphery of the cylindrical part of the lane rope float according to Embodiment 9 of the present invention, and (b) is an enlarged front view of the periphery of the cylindrical part of the lane rope float. It is.

100 Lane rope float 120 Concave support portion 200 Cylindrical portion R Rope

Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment 1>
First, FIGS. 1 to 3 show a lane rope float 100 according to a first embodiment of the present invention. In addition, FIG. 1 is an overall perspective view of the lane rope float 100, FIG. 2(a) is a side view of the lane rope float 100, FIG. 2(b) is a front view of the lane rope float 100, and FIG. 3(a) 2(a) is a sectional view taken along the line AA in FIG. 2(a), and FIG. 3(b) is an enlarged sectional view around the end portion of FIG. 3(a).

The lane rope float 100 is a hollow, substantially cylindrical body, and has a cylindrical part 200 in the center through which a rope R can be inserted, and is surrounded by an outer wall 101. Since the inside of the lane rope float 100 is hollow, the lane rope float 100 can float on the water surface. Further, the lane rope float 100 has a symmetrical shape, and the center of gravity is located at the center of the lane rope float 100. Further, the lane rope float 100 is blow molded using a synthetic resin material. The synthetic resin materials that make up the lane rope float 100 include EVA resin (ethylene-vinyl acetate copolymer resin), polyethylene, LDPE (low-density polyethylene), L-LDPE (linear low-density polyethylene), and metallocene polyethylene. , polypropylene, elastomer, styrene elastomer, silicone, etc., but the present invention is not limited to these materials, and any synthetic resin material may be used as appropriate as long as the lane rope float 100 can be elastically deformed. can. Although the lane rope float 100 is blow-molded using a synthetic resin material, the present invention is not limited thereto, and the lane rope float 100 may be manufactured by injection molding.

Furthermore, the lane rope float 100 includes an outer maximum diameter portion 110 having the largest outer diameter L1, and a central concave support portion 120 having an outer diameter L2 smaller than the outer diameter L1 (L1>L2). . The concave support part 120 has a concave shape so that a person in the pool can hold it with their hands or hang their arm on it for support. In addition, since the maximum diameter portion 110 is provided with a larger outer diameter than the concave support portion 120 on the center side, when a person in the pool holds the concave support portion 120 with their hand or hangs their arm, The user's hands and arms are unlikely to come off the concave support part 120, and the concave support part 120 can stably support the person in the pool. Furthermore, by making the outer side the largest diameter part 110, at least a part of the outer end of the lane rope float 100 remains even when the lane rope float 100 is grabbed by hand or sunk with one's body. , it was constructed so that it would protrude above the water surface. Furthermore, since the inner end 111 of the maximum diameter portion 110, which is the boundary between the concave support portion 120 and the maximum diameter portion 110, has a larger radius of curvature than the outer end 112 and is smoother, the concave support portion 120 may be held by hand. It is designed so that it will not hurt even if your hand or arm hits the inner end 111 when you put your arm on it.

Note that the width L3 of the concave support portion 120 is set to 100 to 150 mm (millimeters) so that people in the pool can easily hold it with their hands or place their arms on it. Further, the outer diameter of the cylindrical concave support portion 120, that is, the diameter L2, is set to 40 to 60 mm (millimeters) so that people in the pool can easily hold it with their hands or place their arms on it. Further, since the surface of the outer wall 101 of the concave support portion 120 is uneven, it is difficult for fingers and arms to slip. Furthermore, since the concave and convex shapes on the surface of the outer wall 101 of the concave support portion 120 are smooth, it is easy to grip and does not hurt the hands. Moreover, the strength of the concave support part 120 is improved by the uneven shape of the surface, and even if the concave support part 120 is squeezed by hand and crushed, it easily returns to its original shape.

In addition, when the lane rope float 100 collides with the hands or feet of a person in the pool, the maximum diameter portion 110 and the concave support portion 120 of the lane rope float 100 are elastically deformed to prevent injury. The lane rope float 100 is made of soft synthetic resin material. In addition, since the lane rope float 100 is blow-molded from a soft synthetic resin material, the lane rope float 100 is easily deformed, and people in the pool may hold the concave support portion 120 with their hands or stretch their arms. Easy to hang. Further, the lane rope float 100 is blow molded, and the wall thickness of the lane rope float 100 is thicker at the concave support portion 120 than at the outside (maximum diameter portion 110). Furthermore, since the concave support portion 120 is thick, it is difficult to deform. Moreover, since the lane rope float 100 is hollow and sealed inside by blow molding, even if it is deformed, it can easily be restored to its original shape.

Note that the lane rope float 100 is easily elastically deformed, and in order to effectively prevent injury even if a hand or foot of a person in the pool collides with the lane rope float 100, the lane rope was measured using a durometer type A. Optimally, the hardness of the float 100 is in the range of 10 to 95. Further, the hardness of the lane rope float 100 described above was determined by cutting out a part of the lane rope float 100 after molding as a test piece, and measuring the hardness of the test piece using a durometer type A in accordance with JIS K6253-3. It is something.

Further, the cylindrical portion 200 is located at the center of the lane rope float 100, and both end portions 210 are exposed on the front and rear surfaces of the lane rope float 100. This cylindrical portion 200 extends linearly across end portions 210 on both sides so that the rope R can be inserted therethrough. Furthermore, as shown in FIG. 3(b), the cylindrical portion 200 includes an inner soft layer 220 facing the rope R and a hard layer 230 covering the outside of the soft layer 220. The soft layer 220 and hard layer 230 extend across both ends 210. The soft layer 220 has a cylindrical shape surrounding the rope R, and is made of a soft synthetic resin material. Examples of the soft synthetic resin material constituting the soft layer 220 include EVA resin (ethylene-vinyl acetate copolymer resin), polyethylene, LDPE (low-density polyethylene), L-LDPE (linear low-density polyethylene), metallocene polyethylene, Although polypropylene, elastomer, styrene elastomer, silicone, etc. are used, the material is not limited thereto, and any synthetic resin material may be used as long as it is softer than the synthetic resin material that makes up the hard layer 230. Good too. Further, it is optimal that the hardness of the soft material of the soft layer 220, as measured by durometer type A, is in the range of 10 to 95.

Further, as the hard synthetic resin material forming the hard layer 230, HDPE (high-density polyethylene) or the like is used, but is not limited to this. For example, it may be made of any synthetic resin material. Further, it is optimal that the hardness of the hard material of the hard layer 230, as measured by durometer type A, is in the range of 10 to 95. The hardness of the above-mentioned soft layer 220 and hard layer 230 is measured by cutting out a part of the soft layer 220 or hard layer 230 after molding as a test piece, and measuring the hardness of the test piece using a durometer type according to JIS K6253-3. It was measured by A.

<Embodiment 2>
Next, a lane rope float 100A according to a second embodiment of the present invention is shown in FIGS. 4 to 6. 4 is an overall perspective view of the lane rope float 100A, FIG. 5(a) is a side view of the lane rope float 100A, FIG. 5(b) is a front view of the lane rope float 100A, and FIG. 6(a) is FIG. 5(a) is a BB sectional view, and FIG. 6(b) is an enlarged sectional view of the vicinity of the end portion of FIG. 6(a). Further, the lane rope float 100A according to the second embodiment differs from the lane rope float 100 according to the first embodiment shown in FIGS. 1 to 4 only in the configuration of the concave support portion 120A, and other configurations are not implemented. Since it is the same as the lane rope float 100 according to the first embodiment, detailed explanation will be omitted.

The lane rope float 100A includes an outer maximum diameter portion 110A having the largest outer diameter L1, and a concave support portion 120A having an outer diameter L4 smaller than the outer diameter L1 (L1>L4). The concave support portion 120A has a concave shape so that a person in the pool can hold it with their hands or hang their arm on it for support. Further, since the cross section of the concave support portion 120A is a smoothly curved shape with a concave center, it is easy for people in the pool to grasp the concave support portion 120A with their hands or hang their arms on the concave support portion 120A. Further, the lane rope float 100A has a symmetrical shape, and the center of gravity is located at the center of the lane rope float 100A. Note that the concave support portion 120A has a larger diameter than the concave support portion 120 shown in FIG. 1, making it easier to rest your arm on it than to hold it by hand. The concave support portion 120A can be used not only to hang the arm, but also to hang the neck or head like a pillow.

Note that the width L5 of the concave support portion 120A is set to 100 to 150 mm (millimeters) so that people in the pool can easily hold it with their hands or place their arms on it. In addition, in order to make it easier for people in the pool to hold it with their hands or hang their arms around it, the outer diameter of the smallest diameter portion of the approximately cylindrical concave support portion 120A, that is, the diameter L4, is set to 80 to 100 mm (millimeters). It has become.

Similarly to the lane rope float 100 of Embodiment 1, the lane rope float 100A is a hollow cylindrical body, and has a cylindrical portion 200A in the center through which the rope R can be inserted, and is surrounded by an outer wall 101A. being surrounded. The cylindrical portion 200A has the same configuration as the cylindrical portion 200 of the lane rope float 100 of Embodiment 1, and includes an inner soft layer 220A facing the rope R and a hard layer 230A covering the outside of the soft layer 220A. Be prepared.

Next, FIGS. 7 and 8 show the lane rope float 100 of the first embodiment and the lane rope float 100A of the second embodiment attached to the rope R. 7 is a plan view of the lane rope float 100 of Embodiment 1 and the lane rope float 100A of Embodiment 2 attached to the rope R, and FIG. 8(a) is a cross-sectional view taken along line CC in FIG. FIG. 8(b) is an enlarged cross-sectional view of the vicinity of the end portion 210 of the lane rope float 100 of FIG. 8(a).

As shown in FIG. 7, lane rope floats 100 and lane rope floats 100A are alternately attached to a long rope R stretched across the pool so as to divide each lane M of the pool. Specifically, as shown in FIG. 8, the rope R is inserted through the cylindrical portion 200 of the lane rope float 100 and the cylindrical portion 200A of the adjacent lane rope float 100A. The end 210 of the adjacent lane rope float 100 and the end 210A of the lane rope float 100A are in contact with each other. A person in the pool who swims in each lane M can rest easily by holding the concave support part 120 of the lane rope float 100 or the concave support part 120A of the lane rope float 100A with their hands or hanging their arms over them. This is possible. In addition, since the outer ends (near the maximum diameter part) of the adjacent lane rope floats have the same shape, it gives a beautiful impression in terms of design. Further, the concave support portions (120, 120A) support hands and arms as part of the body of a person in the pool, but the concave support portions (120, 120A) support the hands and arms of a person in the pool. Any part of the body of a person within the pool may be supported so that the person within can rest. Although the rope R is used to attach the lane rope float, it is not limited to this; any material, such as a wire, can be used as long as the lane rope float can be attached. good.

In addition, since force is applied to the lane rope float (100, 100A) due to the force when gripping it with your hand or the weight of the person in the pool when you hang your arm on it, the rope R is It makes strong contact so as to bite into the layers (220, 220A). Since the soft layer (220, 220A) is made of a soft material, the friction between the rope R and the soft layer (220, 220A) increases. The lane rope float (100, 100A) can be prevented from rotating around the rope R. Further, it is possible to prevent the lane rope floats (100, 100A) from shifting laterally in the longitudinal direction of the rope R. As a result, people in the pool who swim in each lane M can hold on to the lane rope floats (100, 100A) and rest in a stable position.

Note that a hard layer (230, 230A) is arranged outside the soft layer (220, 220A). Therefore, when force is applied to the lane rope float (100, 100A), the outer hard layer (230, 230A) can suppress excessive deformation of the inner soft layer (220, 220A). As a result, the soft layer (220, 220A) and the rope R can firmly and strongly contact each other, so that rotation of the lane rope float (100, 100A) can be more effectively suppressed.

Note that when no force is applied to the lane rope float 100 by a person in the pool, although the rope R and the soft layer (220, 220A) are in contact, the frictional force between them is not strong. , the rope R can rotate relative to the soft layer (220, 220A), and the lane rope float (100, 100A) can rotate around the rope R. In addition, in FIGS. 7 and 8, the lane rope float 100 and the lane rope float 100A are attached to the rope R alternately, but the present invention is not limited to this, and one of the lane rope float 100 and the lane rope float 100A is attached to the rope R. The manner in which the lane rope float 100 and the lane rope float 100A are attached to the rope R may be arbitrary, such as attaching only the rope R to the rope R.

The cylindrical part (200, 200A) of the lane rope float (100, 100A) includes a soft layer (220, 220A) and a hard layer (230, 230A), but is not limited to this. The shaped part (200, 200A) does not have a hard layer (230, 230A), and the cylindrical part (200, 200A) only has a soft layer (220, 220A), that is, the cylindrical part (200, 200A) ) may be constructed entirely of soft material. Even in that case, since the friction between the rope R and the inner surface of the cylindrical part (200, 200A) increases, it is not possible to prevent the rope R from rotating relative to the soft layer (220, 220A). , the lane rope float (100, 100A) can be prevented from rotating around the rope R. For example, if the entire cylindrical part (200, 200A) is blow-molded from LDPE (low-density polyethylene), which is a soft material, the thin film wrapped around the surface of rope R is Since the resistance against the rope R increases, the lane rope float (100, 100A) can be prevented from shifting laterally in the longitudinal direction of the rope R or rotating around the rope R. In addition, by providing unevenness on the inner surface of the cylindrical part (200, 200A), when the weight of a person in the pool is applied to the lane rope float (100, 100A), the cylindrical part (200, 200A) Since the resistance with the rope R (or wire, etc.) increases, the lane rope float (100, 100A) can be prevented from shifting laterally in the longitudinal direction of the rope R or rotating around the rope R.

<Embodiment 3>
Next, a lane rope float 100B according to a third embodiment of the present invention is shown in FIGS. 9 to 11. 9 is an overall perspective view of the lane rope float 100B, FIG. 10 is a side view of the lane rope float 100B, FIG. 11(a) is a sectional view taken along line DD in FIG. 10, and FIG. 11(b) is a diagram 11(a) is an enlarged sectional view of the vicinity of the end. Furthermore, the lane rope float 100B according to the third embodiment is different from the lane rope float 100 according to the first embodiment shown in FIGS. Although different in this point, the other configurations are the same as the lane rope float 100 according to the first embodiment, so a detailed explanation will be omitted.

The lane rope float 100B has the same configuration as Embodiment 1, but the cylindrical portion 200B of the lane rope float 100B is not provided with a soft layer. The cylindrical portion 200B is composed of a hard layer 230B that linearly extends over both ends 210B, and the rope R can be inserted through the hard layer 230B. Furthermore, rotation suppressing members 300B are attached to both ends 210B of the cylindrical portion 200B.

The rotation suppressing member 300B is made of a synthetic resin material that is softer than the synthetic resin material that makes up the cylindrical portion 200B (the hard material that makes up the hard layer 230B in FIG. 11), and is shown in FIG. 11(b). As shown, it includes a cylindrical insertion portion 310B and an end portion 320B. The cylindrical insertion part 310B is configured in a cylindrical shape so that the rope R can be inserted thereinto, and can be inserted and attached to the inside of the hard layer 230B of the cylindrical part 200B. Then, when the cylindrical insertion part 310B of the rotation suppressing member 300B is inserted into the hard layer 230B from the end 210B side of the cylindrical part 200B, the end 320B of the rotation suppressing member 300B is inserted into the end of the cylindrical part 200B. 210B, the rotation inhibiting member 300B is no longer inserted into the cylindrical portion 200B.

The soft material constituting the rotation suppressing member 300B includes EVA resin (ethylene-vinyl acetate copolymer resin), polyethylene, LDPE (low density polyethylene), L-LDPE (linear low density polyethylene), metallocene polyethylene, Polypropylene, elastomer, styrene elastomer, silicone, etc. are used, but the material is not limited thereto, and any synthetic resin material may be used as long as it is softer than the synthetic resin material that makes up the cylindrical portion 200B. You can. Further, it is optimal that the hardness of the rotation inhibiting member 300B measured by a durometer type A is in the range of 10 to 95.

When the lane rope float 100B is attached to the rope R, the rope R is inserted through the cylindrical insertion portion 310B and the cylindrical portion 200B of the rotation suppressing member 300B. When a person in the pool takes a rest by holding on to the lane rope float 100B, the lane rope float 100B is Since the force is applied, the rope R strongly contacts the cylindrical insertion portion 310B of the rotation suppressing member 300B so as to bite into it. Since the cylindrical insertion portion 310B of the rotation prevention member 300B is made of a soft material, the friction between the rope R and the rotation prevention member 300B increases, so that the rope R is attached to the rotation prevention member 300B. Therefore, the lane rope float 100B can be prevented from rotating around the rope R. As a result, people in the pool can hold on to the lane rope float 100B and rest in a stable position. Further, since the contact surface with the rope R wears out, maintenance may be required, but this can be done simply by replacing the rotation suppressing member 300B, which is separate from the cylindrical portion 200B, so maintenance is easy.

Note that the frictional force between the cylindrical portion 200B and the cylindrical insertion portion 310B of the rotation suppression member 300B is stronger than the frictional force between the rope R and the cylindrical insertion portion 310B of the rotation suppression member 300B. ing. Therefore, when force is applied to the lane rope float 100B, it is possible to prevent the lane rope float 100B from rotating around the rotation suppressing member 300B.

In addition, the rope to which the lane rope float of the present invention is attached has a hook attached to the outer wall of the pool so that it can be detached from the wall before the wire (rope) breaks when an abnormal load is applied to the lane rope float. This prevents the wire (rope) from breaking.

<Embodiment 4>
Next, FIGS. 12 to 14 show a lane rope float 100 according to a fourth embodiment of the present invention. 12 is an overall perspective view of the lane rope float 100, FIG. 13(a) is a side view of the lane rope float 100, and FIG. 13(b) is a perspective view showing only the cylindrical portion 200. 14(a) is a front view of the lane rope float 100, and FIG. 14(b) is an enlarged front view of the periphery of the cylindrical portion 200.

The lane rope float 100 is a hollow, substantially cylindrical body, and has a cylindrical part 200 in the center through which a rope R can be inserted, and is surrounded by an outer wall 101. Since the inside of the lane rope float 100 is hollow, the lane rope float 100 can float on the water surface. The lane rope float 100 also includes an outer large diameter portion 110 having the largest outer diameter, and a central concave support portion 120 having a smaller outer diameter than the large diameter portion 110. The concave support part 120 has a concave shape so that a person in the pool can hold it with their hands or hang their arm on it for support. In addition, since the large-diameter portion 110 having a larger outer diameter than the central concave support portion 120 is provided, when a person in the pool grasps the concave support portion 120 with their hand or hangs their arm on it, it is difficult to The user's hands and arms are unlikely to come off the concave support part 120, and the concave support part 120 can stably support the person in the pool. Although the lane rope float 100 is equipped with a concave support part 120, the present invention is not limited to this, and it may be possible for a person in the pool to hold the lane rope float with their hands or hang their arms on it. For example, it may have a cylindrical shape without the concave support portion 120 or any other arbitrary shape.

Further, the cylindrical portion 200 is located at the center of the lane rope float 100, and both end portions 210 are exposed on the front and rear surfaces of the lane rope float 100. Further, the cylindrical portion 200 includes an insertion portion 220 surrounded by an outer end portion 280, and the insertion portion 220 extends linearly across the end portions 210 on both sides so that the rope R can be inserted therethrough. There is. Further, as shown in FIGS. 13(b) and 14, a locking wall 231 that protrudes inward from the inner surface 221 of the insertion portion 220 is provided inside the cylindrical portion 200. A concave portion surrounded by the locking walls 231 on both sides and the inner surface 221 serves as a locking portion 230. The locking portion 230 extends linearly across the ends 210 on both sides. Further, as shown in FIG. 14(b), although the inner surface 221 of the insertion portion 220 is continuous in the circumferential direction, the inner surface 221 has a recess X and a convex portion Y due to the locking wall 231 of the locking portion 230. are placed consecutively. Therefore, the locking portion 230 forms an uneven shape in the circumferential direction of the cylindrical portion 200.

The locking wall 231 of the locking portion 230 is an inclined wall that slopes toward the inside of the insertion portion 220 as it moves away from the center O of the insertion portion 220 toward the outer end portion 280. In other words, the outer end 232 side of the locking wall 231 is inclined inward so as to approach the center O. Therefore, as shown in FIG. 14(b) when the cylindrical portion 200 is viewed from the front, when the locking portion 230 is arranged so that the center thereof coincides with the straight line P passing through the center O, the locking wall 231 is aligned with the straight line P. It will be inclined in the direction intersecting P. Although the locking wall 231 is an inwardly inclined wall, the locking wall 231 is not limited to this and can be tilted in any direction.For example, the locking wall 231 is configured to be parallel to the straight line P may be formed. Further, as shown in FIG. 13(b), the cylindrical portion 200 includes a flat portion 201 with no unevenness and a convex protrusion 202. A plurality of arbitrary numbers may be provided.

Further, the lane rope float 100 is blow molded using a synthetic resin material. In order to effectively prevent injuries even if the lane rope float 100 collides with the hands or feet of people in the pool, the lane rope float 100 is made of EVA resin (ethylene-acetic acid) as a synthetic resin material that is easily elastically deformed. (vinyl copolymer resin), polyethylene, LDPE (low density polyethylene), L-LDPE (linear low density polyethylene), metallocene polyethylene, polypropylene, elastomer, styrene elastomer, silicone, etc. The present invention is not limited to this, and any synthetic resin material may be appropriately used as long as the lane rope float 100 can be elastically deformed.

Since the cylindrical portion 200 is integrally molded with the entire lane rope float 100, the cylindrical portion 200 is also blow molded using a synthetic resin material. Therefore, since the cylindrical part 200 is formed so as to swell from the center O toward the outer end 280, the thickness of a part of the cylindrical part 200 (for example, the locking wall 231, etc.) is The wall thickness on the outer end portion 280 side (for example, the outer end 232 of the locking wall 231) is thinner than the wall thickness on the side (for example, the inner end 233 of the locking wall 231).

Although the cylindrical part 200 is blow-molded integrally with the lane rope float 100, the invention is not limited to this; the cylindrical part 200 is blow-molded separately from the lane rope float 100, and then, The cylindrical part 200 and the lane rope float 100 may be welded and integrated. Further, although the lane rope float 100 and the cylindrical portion 200 are blow-formed, they are not limited to this, and may be manufactured by injection molding.

Next, FIG. 15 shows a state in which the lane rope float 100 is attached to the rope R. Note that FIG. 15(a) is a front view of the lane rope float 100 attached to the rope R, and FIG. 15(b) is an enlarged front view of the periphery of the cylindrical portion 200. .

As shown in FIG. 15, a long rope R stretched across the pool is inserted and attached to the insertion part 220 of the cylindrical part 200 of the lane rope float 100 so as to divide each lane of the pool. Normally, the rope R is located at the center O of the cylindrical portion 200, so the lane rope float 100 can rotate around the rope R. The energy of waves created by people in the pool of each lane is absorbed by the lane rope float 100 while rotating, and is effectively consumed and dissipated. Although a plurality of lane rope floats 100 are successively attached to the rope R, this is not a limitation. lane rope floats having end members 900E) may be attached at predetermined intervals.

In addition, if a person in the pool stands in the pool, takes a break, or is about to drown and grasps the lane rope float 100 with their hands or hangs their arm, the lane rope float 100 A force F directed downward (or toward the center O) is applied, and the lane rope float 100 is pushed downward (or toward the center O). Then, the cylindrical part 200 of the lane rope float 100 moves downward toward the rope R located at the center O. Since the locking portion 230 is arranged inside the cylindrical portion 200, the rope R is locked to the locking portion 230. Furthermore, by applying force F from an oblique direction, the lane rope float 100 rotates along the circumferential direction of the cylindrical part 200, so that the rope R rolls on the inner surface 221 of the insertion part 220 of the cylindrical part 200. try to move to. However, since the locking part 230 has an uneven shape in the circumferential direction on the inner surface of the cylindrical part 200, it prevents the rope R from rollingly moving on the inner surface 221 of the insertion part 220. This effectively prevents the lane rope float 100 from rotating.

Further, the locking wall 231 of the locking portion 230 is an inclined wall that slopes inward as it moves away from the center O of the cylindrical portion 200. Therefore, when the lane rope float 100 is elastically deformed downward (or toward the center O) by the force F, the locking wall 231 of the locking portion 230 is elastically deformed inward, so that the rope R The contact area with increases. Thereby, the rope R is more strongly locked by the locking portion 230, and rotation of the lane rope float 100 can be effectively prevented.

Further, when the lane rope float 100 is elastically deformed so as to collapse downward (or toward the center O) due to the force F, the wall thickness of a part of the cylindrical portion 200 is larger than that of the outer end 280 than the center O side. Since the outer end portion 280 side is thinner, the outer end portion 280 side is more likely to be elastically deformed. When a person in the pool holds the lane rope float 100 with his or her hand or hangs his or her arm around it, the cylindrical portion 200 of the lane rope float 100 moves toward the rope R located at the center O. Although it moves downward, since the outer end 280 side can be flexibly and elastically deformed, the rope R and the locking part 230 on the outer end 280 side can be easily locked, and the locking part 230 and the rope R can be more easily locked. In close contact. Therefore, the rope R is strongly locked by the locking portion 230, and rotation of the lane rope float 100 can be effectively prevented.

Further, as shown in FIG. 15(b), the locking walls 231 on both sides of the locking portion 230 are configured to be able to contact both sides of the rope R at the same time. For example, the distance between the locking walls 231 on both sides is equal to or narrower than the width of the rope R. Therefore, the rope R is press-fitted into the locking portion 230 and is locked more strongly, thereby effectively preventing the lane rope float 100 from rotating. Note that the locking walls 231 on both sides of the locking part 230 are configured so that they can contact both sides of the rope R at the same time, but the invention is not limited to this. The locking wall 231 on both sides of the locking portion 230 may not be able to contact both sides of the rope R at the same time. If the rope R is locked to one of the locking walls 231 of the locking portion 230, rotation of the lane rope float 100 can be prevented.

Further, a total of four locking portions 230 are arranged in the cylindrical portion 200, and the locking portions 230 are arranged at regular intervals. By arranging four locking portions 230, the rope R can be easily locked to any of the locking portions 230, so rotation of the lane rope float 100 can be more effectively prevented. Furthermore, by arranging four locking parts 230 in the insertion part 220 of the cylindrical part 200, the insertion part 220 has a substantially cross shape. In other words, the insertion part 220 does not have a perfect circular shape, and a part of the insertion part 220 has a recessed shape in which the rope R can be locked. Note that the insertion part 220 does not have a perfect circular shape, and if a part of the insertion part 220 has a concave shape that can lock the rope R, the cylindrical part 200 has a locking part. Only one locking portion 230 may be arranged, or an arbitrary number of two or more locking portions 230 may be arranged.

<Embodiment 5>
Next, referring to FIG. 16, a lane rope float 100A according to a fifth embodiment of the present invention will be described. Note that FIG. 16 is an enlarged front view of the periphery of the cylindrical portion 200A of the lane rope float 100A. Further, the structure of the lane rope float 100A according to the fifth embodiment of the present invention is different in that the cylindrical part 200A is provided with a locking part 237A, but the lane rope float according to the fourth embodiment is different in other respects. Since the configuration is the same as that of No. 100, detailed explanation will be omitted.

As shown in FIG. 16, in the locking portion 230A disposed on the cylindrical portion 200A of the lane rope float 100A, a locking portion 237A is formed on the locking wall 231A. The lock portion 237A has a shape that projects inward from the locking wall 231A. The locking portion 237A can come into contact with the outer surface of the rope R engaged with the locking portion 230A and can stop the rope R from coming off from the locking portion 230A toward the center O side of the cylindrical portion 200A. . Therefore, the state in which the rope R is locked to the locking portion 230A can be more strongly maintained, and rotation of the lane rope float 100A can be more effectively prevented. Although the locking portion 237A is provided on the locking walls 231A on both sides, the locking portion 237A is not limited thereto, and may be provided only on the locking wall 231A on one side.

<Embodiment 6>
Next, referring to FIG. 17, a lane rope float 100B according to a sixth embodiment of the present invention will be described. Note that FIG. 17 is an enlarged front view of the periphery of the cylindrical portion 200B of the lane rope float 100B. Further, the structure of the lane rope float 100B according to the sixth embodiment of the present invention is different in the structure of the locking part 230B of the cylindrical part 200B, but the lane rope float 100B according to the fourth embodiment is different in other respects. Since the configuration is the same as that of , detailed explanation will be omitted.

As shown in FIG. 17, a locking portion 230B having a concave shape and sandwiched between locking walls 231B on both sides is disposed inside the cylindrical portion 200B. Since the concave portion XB of the concave portion of the locking portion 230B and the convex portion YB of the locking wall 231B are arranged continuously, the locking portion 230B forms an uneven shape in the circumferential direction of the cylindrical portion 200B. I will do it. Therefore, it is possible to effectively prevent the rope R from being locked to the locking portion 230B and the lane rope float 100B from rotating. Moreover, the insertion part 220B of the cylindrical part 200B is provided with two opposing locking parts 230B, so that the insertion part 220B is It has a roughly elliptical shape. In this way, the insertion part 220B does not have a perfect circular shape, but has a recessed shape in which the rope R can be locked in a part of the insertion part 220B.

<Embodiment 7>
Next, referring to FIG. 18, a lane rope float 100C according to a seventh embodiment of the present invention will be described. Note that FIG. 18 is an enlarged front view of the periphery of the cylindrical portion 200C of the lane rope float 100C. Further, the structure of the lane rope float 100C according to the seventh embodiment of the present invention is different in the structure of the locking part 230C of the cylindrical part 200C, but the lane rope float 100C according to the fourth embodiment is different in other respects. Since the configuration is the same as that of , detailed explanation will be omitted.

As shown in FIG. 18, a locking portion 230C having a concave shape and sandwiched between locking walls 231C on both sides is disposed inside the cylindrical portion 200C. Since the concave portion XC of the concave portion of the locking portion 230C and the convex portion YC of the locking wall 231C are arranged continuously, the locking portion 230C forms an uneven shape in the circumferential direction of the cylindrical portion 200C. I will do it. Therefore, it is possible to effectively prevent the rope R from being locked to the locking portion 230C and the lane rope float 100C from rotating. Further, the insertion portion 220C of the cylindrical portion 200C includes three locking portions 230C, so that the insertion portion 220C is approximately triangular in the front view of FIG. 18 (that is, the viewpoint from the longitudinal axis direction of the rope R). It has a shape. In this way, the insertion portion 220C does not have a perfect circular shape, and a part of the insertion portion 220C has a recessed shape in which the rope R can be locked.

In addition, the insertion part 220C can also be provided with four or more locking parts 230C, and in that case, in the front view of FIG. It becomes a polygonal shape such as a quadrilateral shape. Even if the cylindrical part 200C and the insertion part 220C have a substantially triangular, elliptical, or polygonal shape when viewed from the front in FIG. The portion 230C has an uneven shape in the circumferential direction.

<Embodiment 8>
Next, referring to FIG. 19, a lane rope float 100D according to an eighth embodiment of the present invention will be described. Note that FIG. 19(a) is a perspective view showing only the cylindrical portion 200D of the lane rope float 100D, and FIG. 19(b) is an enlarged front view of the periphery of the cylindrical portion 200D of the lane rope float 100D. be. Further, the structure of the lane rope float 100D according to the eighth embodiment of the present invention is different in the structure of the locking part 230D of the cylindrical part 200D, but the lane rope float 100D according to the fourth embodiment is different in other respects. Since the configuration is the same as that of , detailed explanation will be omitted.

As shown in FIG. 19, a plurality of convex locking walls 231D are partially provided inside the cylindrical portion 200D. Specifically, as shown in FIG. 19(a), a plurality of first locking walls 231D1 are arranged spaced apart from each other. Since each locking wall 231D1 is arranged in the same straight line along the longitudinal direction of the cylindrical portion 200D, each locking wall 231D1 overlaps back and forth, as shown in FIG. 19(b). There is. Similarly, as shown in FIG. 19(a), a plurality of second locking walls 231D2 are arranged spaced apart from each other. Since each locking wall 231D2 is arranged in the same straight line along the longitudinal direction of the cylindrical portion 200D, each locking wall 231D2 overlaps back and forth, as shown in FIG. 19(b). There is. Similarly, as shown in FIG. 19(a), a plurality of third locking walls 231D3 are arranged spaced apart from each other. Since each of the locking walls 231D3 is arranged in the same straight line along the longitudinal direction of the cylindrical portion 200D, each of the locking walls 231D3 overlaps in the front and back, as shown in FIG. 19(b). There is.

As shown in FIG. 19(b), a concave portion sandwiched between adjacent locking walls 231D serves as a locking portion 230D. When viewed from the front of the cylindrical portion 200D, the recessed portion XD of the recessed portion of the locking portion 230D and the convex portion YD of each locking wall 231D are arranged continuously, so that the locking portion 230D is connected to the cylindrical portion 200D. This results in an uneven shape in the circumferential direction. Therefore, it is possible to effectively prevent the rope R from being locked to the locking portion 230D and the lane rope float 100D from rotating.

<Embodiment 9>
Next, referring to FIG. 20, a lane rope float 100E according to a ninth embodiment of the present invention will be described. Note that FIG. 20(a) is an enlarged perspective view of the vicinity of the end 210E of the cylindrical portion 200E of the lane rope float 100E, and FIG. 20(b) is an enlarged perspective view of the periphery of the cylindrical portion 200E of the lane rope float 100E. FIG. The structure of the lane rope float 100E according to the ninth embodiment of the present invention is different in that the cylindrical part 200E does not have a locking part and has an end member 900E, but other points are as follows. Since the structure is the same as that of the lane rope float 100 according to the fourth embodiment, detailed explanation will be omitted.

As shown in FIG. 20(a), the cylindrical portion 200E does not have a locking portion, but is configured to be able to attach an end member 900E having a locking portion 930E. Specifically, the end member 900E includes an insertion portion 920E surrounded by an outer edge portion 980E, and the insertion portion 920E extends linearly across both ends 910E so that the rope R can be inserted therethrough. ing. Then, the end member 900E is inserted from the end 210E of the cylindrical portion 200E and attached inside the cylindrical portion 200E. Note that the end member 900E is blow molded or injection molded using a synthetic resin material.

Further, as shown in FIG. 20(b), a locking wall 931E that protrudes inward is provided inside the end member 900E. A concave portion sandwiched between the locking walls 931E on both sides serves as a locking portion 930E. When the end member 900E is attached to the cylindrical portion 200E, the locking portion 930E is placed inside the cylindrical portion 200E. As shown in FIG. 20(b), when viewed from the front of the cylindrical portion 200E, the concave portion XE of the concave portion of the locking portion 930E and the convex portion YE of the locking wall 931E are disposed continuously. , the locking portion 930E forms an uneven shape in the circumferential direction of the cylindrical portion 200E. Therefore, it is possible to effectively prevent the rope R from being locked to the locking portion 930E and the lane rope float 100E from rotating.

Furthermore, the lane rope float of the present invention is not limited to the above-described embodiments, and various modifications and combinations are possible within the scope of the claims and the embodiments, and these modifications , combinations are also included within the scope of the right.

Claims

A lane rope float that is attached to a rope via a cylindrical part to partition each lane of a pool and is formed from a synthetic resin material,
A float for a lane rope, characterized in that a concave support part capable of supporting a part of the body is formed.
The lane rope according to claim 1, wherein the outer diameter of the lane rope float is smaller at the center side where the concave support portion is formed than at the largest outer diameter portion on the outside. float.
3. The lane rope float according to claim 1, wherein the float is blow-molded using a soft synthetic resin material.
The cylindrical portion is made of a hard material and a soft material that is softer than the hard material,
3. The lane rope float according to claim 1, wherein the soft material is arranged on a side facing the rope.
The cylindrical portion is made of a hard material and a soft material that is softer than the hard material,
4. The lane rope float according to claim 3, wherein the soft material is arranged on the side facing the rope.
3. The lane rope float according to claim 1, wherein the cylindrical portion is made of a soft material.
4. The lane rope float according to claim 3, wherein the cylindrical portion is made of a soft material.
Rotation suppressing members are attached to both ends of the cylindrical part,
3. The lane rope float according to claim 1, wherein the rotation suppressing member is made of a soft material that is softer than the material forming the cylindrical portion.
Rotation suppressing members are attached to both ends of the cylindrical part,
4. The lane rope float according to claim 3, wherein the rotation suppressing member is made of a soft material that is softer than the material forming the cylindrical portion.
A lane rope float that is attached to a rope via a cylindrical part to partition each lane of a pool and is formed from a synthetic resin material,
A locking portion capable of locking the rope is disposed inside the cylindrical portion,
The float for a lane rope, wherein the locking part has an uneven shape in the circumferential direction of the cylindrical part.
11. The lane rope float according to claim 10, wherein the locking portion includes an inclined wall that slopes inward as it moves away from the center of the cylindrical portion.
The cylindrical part is blow molded using a synthetic resin material,
12. The lane rope float according to claim 10 or 11, wherein a portion of the cylindrical portion is thinner on the end side than on the center side.