JP3135969U - Nordic walking stock - Google Patents

Abstract

[PROBLEMS] To obtain a driving force for walking by effectively pressing a grounding member against the ground regardless of an angle of a shaft with respect to the ground and sufficiently generating a frictional force of the grounding member with respect to the ground, thereby promoting walking. To provide a Nordic walking stock that can reduce the chance of a grounding member coming into contact with surrounding people or buildings and perform a safe walking motion.
A Nordic walking stock 1 has a shaft (pole) 2, a gripping member 4 installed at a proximal end portion of the shaft 2, and a grounding member 3 installed at a distal end portion of the shaft 2. When the Nordic walking stock 1 is used, the shaft 2 has a bent portion 23 in the vicinity of the grounding member 3 that is bent or bent so that the grounding member 3 is directed toward the ground.
[Selection] Figure 1

Description

  The present invention relates to a stock for Nordic walking.

  A stock described in Japanese Patent Application Laid-Open No. 63-97179 is known as an exercise tool that can increase the walking speed by widening the stride when walking. The stock includes a flexible shaft, a handle provided at the base end of the shaft at an angle of about 135 ° with respect to the shaft, and a leg provided substantially parallel to the handle at the tip of the shaft. It is composed. When exercising with this stock, when walking, hold the handle so that the shaft is located at the rear, tilt the shaft at an angle of about 45 ° to the ground, ground the legs, and move the stock backward with the force of the arm. The pressure is pressed and the reaction force is used to promote walking (hereinafter also referred to as “walking exercise”).

  However, this stock has the following problems because the shaft is linear.

  First, depending on the height of the user and the degree of flexion and extension of the limbs (both elbows and knees), for example, the angle of the shaft with respect to the ground is smaller than 45 ° described above. As a result, when the stock is pressed backward by the force of the arm, the frictional force between the grounding member and the ground is reduced, and the grounding member is easily slipped with respect to the ground. As a result, it is difficult to perform a stable walking motion.

  Second, the distance between the grounding member and the user when the grounding member is grounded to the ground is relatively large. For this reason, for example, when the exercise equipment is used in the city (such as the neighborhood of the user's house), the grounding member may come into contact with pedestrians around the user, buildings, street trees, and the like. As a result, it is difficult to perform a safe walking exercise.

JP-A-63-97179

  The purpose of the present invention is to effectively push the grounding member against the ground regardless of the angle of the shaft with respect to the ground, and to generate sufficient frictional force against the ground by the grounding member, thereby obtaining a walking propulsion force and walking. An object of the present invention is to provide a Nordic walking stock that can be promoted and reduced in the chance that a grounding member comes into contact with surrounding people or buildings, and can perform a safe walking motion.

The object is achieved by the present inventions (1) to (11) below.
(1) An exercise tool having a shaft, a gripping member installed at a proximal end portion of the shaft, and a grounding member installed at a distal end portion of the shaft,
The shaft has a bent portion in the vicinity of the grounding member that is bent or bent so that the grounding member is directed toward the ground when the exercise tool is used.

  (2) The Nordic walking stock according to (1), wherein the grounding member has at least one wheel rotatably supported.

  (3) The stock for nordic walking according to the above (2), having a rotation direction restricting means for rotating the wheel in only one direction.

  (4) The stock for nordic walking according to (3), wherein the rotation direction restricting means prohibits rotation of the wheel in a direction opposite to a traveling direction of the exercise tool.

  (5) For nordic walking according to any one of the above (2) to (4), comprising a measuring means for measuring the cumulative rotational speed of the wheel and measuring the movement distance of the exercise equipment based on the cumulative rotational speed. stock.

  (6) The Nordic walking stock according to any one of (1) to (5), wherein the shaft includes a rotation mechanism that allows the grounding member to rotate about the axis of the shaft.

  (7) The stock for nordic walking according to (6), wherein the rotation mechanism is provided closer to the gripping member than the bent portion.

  (8) The Nordic walking stock according to (6) or (7), wherein the rotation mechanism is provided closer to the grounding member than the bent portion.

  (9) The shaft is connected to a first shaft located on the base end side of the shaft and a distal end portion of the first shaft, and is supported to be rotatable about the axis of the first shaft. The Nordic walking stock according to any one of (6) to (8), further including a shaft, wherein a connecting portion between the first shaft and the second shaft constitutes the rotation mechanism.

  (10) The rotation mechanism is configured to be able to rotate the grounding member left and right from the basic posture of the grounding member with respect to the shaft, and when no external force is applied to the grounding member, The Nordic walking stock according to any one of (6) to (9), wherein the stock is configured to hold the basic posture.

  (11) The Nordic walking stock according to any one of (1) to (10), wherein the angle between the shaft and the gripping member is fixed and angle adjusting means capable of adjusting the angle is provided.

  According to the present invention, the grounding member can be effectively pressed against the ground regardless of the shaft angle, and the frictional force of the grounding member against the ground can be sufficiently generated. Thereby, resistance with a grounding member and the ground increases, and a larger reaction force can be obtained by pressing the Nordic walking stock backward with the force of the arm. As a result, the walking propulsive force (forward propulsive force) can be effectively increased, and the walking is promoted, resulting in excellent exercise efficiency.

  In addition, the distance between the grounding member and the user is reduced when the grounding member is grounded to the ground as compared with the case where the bent portion is omitted and the shaft is linear. For this reason, the user can ground the grounding member on the ground at a position close to the user. This improves the operability of the Nordic walking stock. Also, for example, when Nordic walking stock is used in a city (such as in the neighborhood of a user's house), the opportunity for the grounding member to contact people around the user, buildings, street trees, etc. should be reduced. Can perform a safe walking exercise.

  In addition, when the ground contact member has wheels and rotation direction restricting means for rotating the wheels only in one direction, a very smooth and efficient walking motion can be performed. Specifically, when the grounding member is brought into contact with the ground, rotation of the wheel in the backward direction is prohibited, and the reaction force from the ground G is obtained by pressing the Nordic walking stock backward with the force of the arm. be able to. Also, if you want to move the Nordic walking stock to the front side in the direction of travel, you can move the Nordic walking stock while rotating the wheel with respect to the ground, and there is no need to lift the Nordic walking stock. The burden on the person is reduced.

  In addition, in the case of having a rotating mechanism that allows the grounding member to rotate about the axis of the shaft, the grounding member has excellent followability to the ground. For example, when walking across a slope, unevenness (undulation) Even when walking on a certain ground, the grounding member can reliably capture the ground and perform a walking motion smoothly, stably and safely without causing slippage.

  Hereinafter, the Nordic walking stock of the present invention will be described in detail based on a preferred embodiment shown in the accompanying drawings.

<First Embodiment>
FIG. 1 is a side view showing a first embodiment of a stock for nordic walking according to the present invention, FIG. 2 is a diagram for explaining the action of a bent portion, and FIG. 3 is provided in the stock for nordic walking shown in FIG. FIG. 4 is a plan view seen from the arrow A side in FIG. 1, FIG. 5 is a sectional side view showing the configuration of the gripping member of the Nordic walking stock shown in FIG. 1, and FIG. FIG. 7 is a cross-sectional view showing the configuration of the ground contact member of the Nordic walking stock shown in FIG. 1, and FIG. 7 and FIG. 8 show the configuration of the rotation direction regulating means (one-way clutch) provided in the Nordic walking stock shown in FIG. Cross-sectional views, FIG. 9 and FIG. 10 are schematic views showing how to use the Nordic walking stock shown in FIG. In the following, for convenience of explanation, the upper side in FIGS. 1 to 10 is referred to as “upper”, the lower side is referred to as “lower”, the right side is referred to as “right”, and the left side is referred to as “left”.

  As shown in FIG. 1, the Nordic walking stock 1 of the present invention (hereinafter also simply referred to as “stock 1”) includes a shaft (pole) 2, a gripping member 4 installed at the base end of the shaft 2, It has a grounding member 3 (a pair of wheels 31, 32) installed at the tip of the shaft 2. Furthermore, the stock 1 has one-way clutches 61 and 62 (rotation direction restricting means 6) that rotate the wheels 31 and 32 in only one direction, and a measuring means 9 that measures the moving distance (walking distance) of the user. ing.

  Further, the shaft 2 has a rotation mechanism 8 that allows the grounding member 3 to rotate around the axis of the shaft 2.

  When such a stock 1 walks, the grip member 4 is gripped so that the shaft 2 is located rearward, the grounding member 3 is grounded to the ground G, the stock 1 is pressed backward by the force of the arm, It promotes walking with force (hereinafter, this action is also simply referred to as “walking exercise”).

  As shown in FIG. 1, the shaft 2 has a bent portion 23 that bends so that the grounding member 3 faces the ground G in the middle thereof. Such a bent portion 23 is provided in the vicinity of the grounding member 3. Further, the bent portion 23 has a substantially “<” shape. In the following, for convenience of explanation, the bent portion 23 is used as a boundary portion, the grip member 4 side of the shaft 2 is also referred to as “first straight portion 2A”, and the grounding member 3 side of the shaft 2 is referred to as “second straight portion 2B”. Also called.

  As shown in FIG. 2, when the shaft 2 has the bent portion 23, the shaft 2 tilts in a direction (arrow Q direction in FIG. 2) in which the inclination of the first straight portion 2A with respect to the ground G decreases from the state indicated by the solid line. In the case where the shaft 2 is inclined in the direction in which the inclination of the first straight portion 2A with respect to the ground G increases (the direction of the arrow R in FIG. 2), the ground of the second straight portion 2B It is possible to ensure a relatively large inclination θ2 with respect to (for example, 40 ° or more).

  Thereby, regardless of the inclination of the shaft 2, the grounding member 3 can be efficiently and reliably pressed against the ground G. When the stock 1 is pressed backward by the force of the arm, the grounding member 3 and the ground G Resistance can be increased. As a result, a reaction force from the ground G can be obtained efficiently. Therefore, the driving force for walking can be increased, and walking motion is promoted.

  In addition, for example, the bending portion 23 is omitted, and the distance between the grounding member 3 and the user when the grounding member 3 is grounded to the ground G is smaller than when the shaft 2 is linear. For this reason, the user can ground the grounding member 3 to the ground G at a position close to himself / herself, and the operability of the stock 1 is improved. Further, for example, when the stock 1 is used in a town (such as a neighborhood of a user's house), the chance that the grounding member 3 contacts people, buildings, roadside trees, etc. around the user is reduced. Safe walking can be performed.

  In the present embodiment, the angle θ1 formed between the first straight portion 2A and the second straight portion 2B is approximately 90 °, but is not limited thereto, and θ1 may be an acute angle smaller than 90 °. The obtuse angle may be larger than 90 °.

  As shown in FIG. 1, the shaft 2 having the above-described shape includes a linear first shaft 21 in which a gripping member 4 is disposed at a base end, and a grounding member 3 at a distal end portion. The second shaft 22 having a substantially “<” shape with a bent portion 23 formed in the middle thereof.

  As shown in FIG. 3, each of the first shaft 21 and the second shaft 22 is configured by a hollow round bar, and the base end portion 221 of the second shaft 22 is formed in the inner cavity of the distal end portion 211 of the first shaft 21. Has been inserted. Such a base end portion 221 of the second shaft 22 slides in the circumferential direction (around the axis of the first shaft 21 (X axis shown in FIG. 2)) with respect to the inner peripheral surface 212 of the first shaft 21. It is possible. Such a connecting portion 26 between the first shaft 21 and the second shaft 22 constitutes a rotating mechanism 8 that allows the grounding member 3 to rotate around the X axis. The rotation mechanism 8 will be described in detail later.

  Further, as shown in FIG. 3, the base end portion 221 of the second shaft 22 is formed with an annular projecting portion 222 projecting in the radial direction, and the inner periphery of the tip end portion 211 of the first shaft 21. An annular groove 213 that engages with the protrusion 222 is formed on the surface 212. Thereby, unintentional detachment | leave from the 1st shaft 21 of the 2nd shaft 22 can be prevented, enabling the 2nd shaft 22 to slide to the circumferential direction of a 1st shaft.

  Examples of the constituent material of the first shaft 21 and the second shaft 22 include various iron materials, stainless steel, aluminum, copper, brass, titanium, nickel, and other metals or alloys, polyethylene, polypropylene, polystyrene, and hard. Polyester such as polyvinyl chloride, polyethylene terephthalate, polycarbonate, acrylic resin, ABS resin, polyamide, polyimide, polysulfone, polyphenylene sulfide, polyether ether ketone, etc., carbon material, or a combination of two or more of these Can be mentioned.

  It is preferable that the first shaft 21 and the second shaft 22, particularly the second shaft 22, have moderate flexibility (elasticity). Thereby, the reaction force from the ground G can be smoothly transmitted to the grip member 4 and a rhythmic walking motion can be performed, so that the motion function can be enhanced.

Next, the rotation mechanism 8 will be described.
As described above, the rotation mechanism 8 is configured by the connecting portion 26, and enables the grounding member 3 to rotate (rotate) around the X axis together with the second shaft 22.

  As shown in FIG. 3, the rotation mechanism 8 has a coil spring 81. The coil spring 81 has an upper end portion 811 fixed to a fixing portion 214 formed on the first shaft 21 and a lower end portion 812 fixed to a fixing portion 223 formed on the second shaft 22. Thereby, the coil spring 81 is fixed to the shaft 2 across the connecting portion 26.

  For example, when an external force (torque around the X axis) is applied to the grounding member 3 and the grounding member 3 rotates about the X axis together with the second shaft 22, the relative positional relationship between the fixing portion 214 and the fixing portion 223 changes. Along with this, the coil spring 81 is torsionally deformed. As a result, a restoring force is generated in the coil spring 81 so as to return to the natural state (the state in which the coil spring 81 is not twisted).

  When the external force applied to the grounding member 3 is removed, the second shaft 22 rotates counterclockwise by the restoring force of the coil spring 81, and the coil spring 81 is in a natural state at the second position. The posture of the grounding member 3 is kept constant together with the shaft 22.

  Hereinafter, for convenience of explanation, the posture of the grounding member 3 with respect to the first shaft 21 when the external force is not applied to the grounding member 3 (that is, the posture shown in FIG. 1) is referred to as a “basic posture”.

  According to such a rotation mechanism 8, as shown in FIG. 4, the grounding member 3 can be rotated in the left and right directions around the X axis, so that the followability of the grounding member 3 to the ground G is excellent. Even when walking across a slope, or when walking on uneven ground (swells), the grounding member 3 reliably captures the ground G and is smooth, stable and safe without slipping. Can perform walking exercises.

  Since the coil spring 81 is provided, the grounding member 3 returns to the basic posture when the external force applied to the grounding member 3 is removed (the grounding member 3 is separated from the ground G). Thereby, for example, in a repetitive motion such as a walking motion, it is advantageous when moving from a forward movement due to the pressing of the ground G to the next movement.

  The configuration of the rotation mechanism 8 is not particularly limited as long as the grounding member 3 can be rotated around the X axis. For example, the first shaft 21 is inserted into the lumen of the second shaft 22. Alternatively, the first shaft 21 and the second shaft 22 may be rotatably connected via a connecting member. Further, instead of the coil spring 81, a cylindrical elastic body made of, for example, a rubber material may be used, or the coil spring 81 may be omitted.

Next, the grip member 4 will be described.
As shown in FIG. 1, the gripping member 4 installed at the proximal end portion of the first shaft 21 includes a main body 41 in which a display portion 94 described later is disposed, and a grip 42 formed on one end side of the main body 41. On the other end side of the main body 41, a storage portion 411 for a friction body 51 to be described later is formed.

  The grip 42 is made of an elastic material such as various types of rubber or soft resin. Further, the grip 42 is formed with a window portion 421 so that the display portion 94 can be visually recognized through the window portion 421.

  The grip 42 may be fixedly installed with respect to the main body 41, but is detachably installed with respect to the main body 41 in order to be exchangeable according to the size of the user's hand, for example. Is preferred.

  As shown in FIG. 5, on the side opposite to the grip 42 of the main body 41, an angle adjusting means 5 that can fix the angle between the shaft 2 and the gripping member 4 and adjust the angle is installed. Hereinafter, the configuration of the angle adjusting means 5 will be described.

  In the friction body storage portion 411 of the main body 41, a columnar friction body 51 in which a minute uneven strip 511 extending in the axial direction is formed on the outer peripheral portion is rotatably stored. On the other hand, a metal support member 52 composed of a desired curved arm 521 and a disk 522 formed at the end thereof is fixed to the upper end of the shaft 2. The body 51 is fixed coaxially with the disk 522 by four bolts 53. The arm 521 of the support member 52 is inserted into a slit-like opening 412 formed in the lower part of the frictional body storage portion 411.

  In addition, a clamping means 54 that clamps the friction body 51 is provided on a side portion of the friction body storage section 411. The clamping means 54 is installed on the opposite side of the fixed clamping member 55 via the friction body storage portion 411 and the fixed clamping member 55 fixed to the left side in FIG. 5 from the friction body storage portion 411 in the main body 41. The movable holding member 56 and a handle 57 for moving the movable holding member 56 toward and away from the fixed holding member 55 are configured.

  The fixed clamping member 55 and the movable clamping member 56 each have a curved concave surface that faces the outer peripheral surface of the friction body 51, and the curved concave surfaces are respectively provided with a concave and convex strip 551 similar to the concave and convex strip 511, respectively. 561 is formed.

  The handle 57 includes a columnar knob 571, a rotating shaft 572 thereof, an engaging portion 573 that is formed to protrude from the tip of the rotating shaft and is rotatably engaged with the movable holding member 56, and an outer peripheral portion of the rotating shaft 572. And a male screw 574 formed on the surface. On the other hand, a shaft hole 413 having a female screw 414 formed on the inner peripheral surface is formed in the right end portion of the main body 41 in FIG. 5, and the rotating shaft 572 is so fitted that the male screw 574 and the female screw 414 are screwed together. It is inserted into the shaft hole 413.

  For example, the shaft 2 is rotated to a position as indicated by a solid line in FIG. 5 to adjust the angle between the shaft 2 and the gripping member 4 as desired, and then the knob 571 is operated to rotate the handle 57 in a predetermined direction. Then, the rotating shaft 572 is screwed, and accordingly, the movable clamping member 56 moves in a direction approaching the fixed clamping member 55, and the friction body 51 is clamped by the both clamping members 55, 56. At this time, the concave and convex strips 511 and the concave and convex strips 551 and 561 mesh with each other, and the frictional force of the frictional member 51 is prohibited from rotating in the frictional member storage unit 411. Fixed.

  When the angle between the shaft 2 and the gripping member 4 is changed, the handle 57 is rotated in the opposite direction to temporarily loosen the friction body 51 between the holding members 55 and 56. 5, the friction body 51 is again clamped by the both clamping members 55 and 56 in the same manner as described above. Thereby, the shaft 2 and the holding member 4 are fixed at an angle different from the above.

  Thus, in the stock 1, the angle between the shaft 2 and the gripping member 4 can be adjusted by the angle adjusting means 5. Therefore, even if the angle of the shaft 2 with respect to the ground G changes during use, the installation angle of the gripping member 4 accordingly. Can be adjusted appropriately, it is easy to grip with the hand, the reaction force from the ground G can be effectively transmitted to the body, and the burden on the wrist holding the grip 42 can be reduced.

  The configuration of the angle adjusting means 5 is not limited to this, and for example, a configuration in which a disc-shaped friction body is sandwiched from both sides like a disc brake may be used.

  As shown in FIG. 6, a pair of shaft members 251 and 252 are provided at the tip of the second shaft 22. Such shaft members 251 and 252 are shafts for supporting the wheels 31 and 32, respectively.

  The shaft members 251 and 252 are provided along a direction orthogonal to both the X axis and the traveling direction. Further, the shaft members 251 and 252 are located on the opposite sides with respect to the second shaft 22.

  Hereinafter, the configuration of the shaft members 251 and 252 will be described. However, since the shaft members 251 and 252 have the same configuration, the shaft member 251 will be described as a representative, and the description of the shaft member 252 will be omitted. To do.

  The shaft member 251 has a round bar shape. Further, the distal end portion of the shaft member 251 constitutes a reduced diameter portion 251a that is reduced in diameter relative to the proximal end portion. Further, a screw portion 251b is formed at the tip of the reduced diameter portion 251a.

  The wheel 31 is supported on the reduced diameter portion 251a via the one-way clutch 61. In order to prevent unintentional wheel removal of the wheel 31, the bolt B1 is screwed into the screw portion 251b.

  As described above, the grounding member 3 includes the wheel 31 supported by the shaft member 251 via the one-way clutch 61 and the wheel 32 supported by the shaft member 252 via the one-way clutch 62. Such a pair of wheels 31 and 32 are provided so as to face each other via the shaft 2.

  Hereinafter, although the structure of the wheels 31 and 32 is demonstrated, since the wheels 31 and 32 are the mutually same structures, it demonstrates on behalf of the wheel 31 and the description about the wheel 32 is abbreviate | omitted.

  As shown in FIG. 6, the wheel 31 includes a wheel 311 and a tire 312 incorporated in the wheel 311. The airtight space S defined by the wheel 311 and the tire 312 is filled with a gas such as air or nitrogen gas at an appropriate pressure.

  By configuring the wheel 31 in such a configuration, the impact from the ground G is absorbed in the airtight space S, and the burden on the wrist, elbow, shoulder joint, etc. of the hand holding the grip 42 is reduced, and the time is longer. Can perform walking exercise safely.

  A through hole 311 a that penetrates in the axial direction of the wheel 311 (left and right direction in FIG. 6) is formed at the center of the wheel 311. A one-way clutch 61 is provided inside the through hole 311a. The one-way clutch 61 has a function that allows the wheel 31 to rotate only in the traveling direction (the direction of arrow P in FIG. 1). Such a one-way clutch 61 will be described later.

  The constituent material of the wheel 311 is not particularly limited, and for example, various metal materials such as aluminum, magnesium, and iron, and a hard resin material can be used. Among these, lightweight and high-strength metal materials such as aluminum and magnesium are preferable. Thereby, while reducing the weight of the wheel 31, durability (strength) of the wheel 31 can be improved.

  The constituent material of the tire 312 is not particularly limited, and for example, various rubber materials (natural rubber, synthetic rubber such as SRB) and elastic materials such as soft resin materials can be used. Thereby, when the wheel 31 is grounded, an anti-slip effect and a buffering effect are exhibited. For example, a tread pattern (groove) or the like may be formed on the outer peripheral surface of the tire 312, or a spike made of, for example, a resin material or a metal material may be provided. Thereby, the anti-slip effect is further improved.

  The configuration of the wheel 31 is not particularly limited as long as it can rotate with respect to the shaft 2. For example, a disk made of a hard resin material may be used as the wheel 31.

  Next, the one-way clutches 61 and 62 will be described. Since the one-way clutches 61 and 62 have the same configuration, the one-way clutch 61 will be described as a representative, and the description of the one-way clutch 62 will be omitted.

  As described above, the one-way clutch 61 has a function of allowing the wheels 31 to rotate only in the traveling direction. According to the one-way clutch 61, when the grounding member 3 is grounded on the ground G, the wheel 31 can be prohibited from rotating in the backward direction (the direction opposite to the arrow P in FIG. 1). Therefore, by pressing the stock 1 backward with the force of the arm, a reaction force can be efficiently obtained, and walking motion is promoted.

  Further, according to the one-way clutch 61, the wheel 31 is allowed to rotate in the traveling direction. Therefore, for example, when the stock 1 is moved forward in the traveling direction in a repetitive motion such as a walking motion, the wheel 31 can be moved while being rotated with respect to the ground G. Thereby, it is not necessary to lift the stock 1, and the burden on the user is reduced.

  The one-way clutch 61 is not particularly limited as long as the above-described function can be exhibited, and examples thereof include those shown in FIGS. 7 and 8.

  The one-way clutch 61 has a cylindrical shape. As shown in FIG. 7, such a one-way clutch 61 has an annular inner ring 611 and a plurality of cam surfaces 612, an outer ring 613 that can rotate with respect to the inner ring 611, and each cam surface 612. A plurality of cylindrical rollers 614 to be obtained and a plurality of springs 615 for urging each roller 614 are provided. Here, as shown in FIG. 7, each cam surface 612 is formed such that the distance from the inner ring 611 gradually decreases in the counterclockwise direction.

  A shaft member 251 is provided inside the inner ring 611, and the inner ring 611 is fixed to the shaft member 251. That is, the inner ring 611 does not move with respect to the stock 1. The fixing direction of the inner ring 611 and the shaft member 251 is not particularly limited, and can be fixed by press-fitting, fitting, adhesion, or the like, for example. Moreover, you may fix with the volt | bolt B1 mentioned above.

  The outer ring 613 is fixed to the wheel 311. Thereby, the wheel 311 can rotate with respect to the inner ring 611 together with the outer ring 613. The fixing direction of the outer ring 613 and the wheel 311 is not particularly limited, and can be fixed by press-fitting, fitting, adhesion, or the like.

  The one-way clutch 61 having such a configuration regulates the rotation direction of the wheel 31 as follows.

  As shown in FIG. 7, when the outer ring 613 attempts to rotate in the direction of arrow T in FIG. 7 with respect to the inner ring 611 (that is, the shaft member 251), the cams corresponding to the rollers 614 are caused by the biasing force of the springs 615. Move to the meshing position of surface 612. As a result, the outer ring 613 and the inner ring 611 are engaged with each other via the roller 614, and the outer ring 613 is fixed to the inner ring 611 via the roller 614. As a result, the rotation of the wheel 31 is prohibited.

  On the contrary, as shown in FIG. 8, when the outer ring 613 rotates with respect to the shaft member 251 in the direction of the arrow U in FIG. 8, the inner ring 611 rotates relatively clockwise. As a result, each roller 614 is separated from the corresponding cam surface 612 against the biasing force of the spring 615 and idles with respect to the outer ring 613. As a result, the outer ring 613 rotates idly with respect to the inner ring 611 and the outer ring 613 is allowed to rotate. Therefore, rotation of the wheel 31 is allowed.

  Such a one-way clutch 61 is provided so that the rotation of the outer ring 613 in the direction of arrow U in FIG. 8 is the rotation in the traveling direction (that is, the direction of arrow P in FIG. 1 and the direction in FIG. 8). It is provided so that the direction of the arrow U coincides).

  By using such a one-way clutch 61, it is possible to prohibit rotation in the backward direction while allowing the rotation of the wheel 31 in the traveling direction with certainty and with certainty.

  In the present embodiment, the one-way clutch 61 is used as the rotation direction restricting means 6, but the present invention is not limited to this as long as the wheel 61 can be rotated only in the traveling direction. For example, as the rotation direction restricting means 6, a free hub used for a general bicycle rear wheel, a ratchet mechanism constituted by a ratchet gear and a claw, or the like may be used.

Next, the measuring means 9 will be described.
As shown in FIG. 6, the measuring means 9 for measuring the movement distance (walking distance) is fixed to the wheel 311 and provided at the support member 91 protruding in the radial direction of the wheel 311, and at the tip of the support member 91. A magnet 92, a magnet sensor 93 that detects the magnetic force generated from the magnet 92, the display unit 94, and a main unit (not shown) are included.

  The display unit 94 is configured by a liquid crystal monitor, for example, and configured to display the moving distance (walking distance) of the user. As described above, such a display unit 94 is provided on the main body 41 of the gripping member 4 and can be visually recognized through the window 421 of the grip 42. Therefore, the user can easily grasp the movement distance even during walking exercise.

  Since the magnet 92 is fixed to the wheel 311 via the support member 91, when the wheel 31 makes one revolution, the magnet 92 also makes one revolution. That is, the cumulative rotational speed of the wheel 31 matches the cumulative rotational speed of the magnet 92. As such a magnet 92, permanent magnets, such as a neodymium magnet, a ferrite magnet, a samarium cobalt magnet, an alnico magnet, can be used, for example.

  The magnet sensor 93 includes a detection unit 93 a that detects the magnetic force of the magnet 92. Such a magnet sensor 93 is fixed to the second shaft 22 so that the detection portion 93 a faces the passage path of the magnet 92. And the detection part 93a is comprised so that the magnetic force of the magnet 92 can be detected when the magnet 92 opposes the detection part 93a when the magnet 92 rotates with the wheel 31. FIG. And the magnet sensor 93 measures the frequency | count that the detection part 93a detected the magnetic force of the magnet 92 as a cumulative rotation speed of the wheel 31, and transmits the measurement result to a main unit. The transmission method may be wired transmission or wireless transmission. In the case of wired transmission, the wiring may be provided in the lumen of the shaft 2 or may be fixed to the outer peripheral surface of the shaft 2.

  In the main unit, the circumference of the wheel 31 is stored in advance. Such a main unit calculates the movement distance based on the circumference of the wheel 31 and the cumulative number of rotations of the wheel 31 transmitted from the magnet sensor 93. Then, the main unit displays the calculated moving distance on the display unit 94.

Next, the operation (usage method) of the stock 1 of the present invention will be described.
[1] A pair of stocks 1 are prepared, and the angle between the shaft 2 and the gripping member 4 is adjusted as desired with respect to them by the operation method described above. When walking on a flat ground, this adjustment is performed by adjusting the angle of the second straight portion 2B of the shaft 2 with respect to the ground G when the grip 42 is gripped by the hand so that the grounding member 3 of the stock 1 is grounded at the rear position of the body. For example, θ2 can be set to about 40 to 50 °.

  [2] Hold the grips 42 with both hands so that the grounding members 3 of both stocks 1 are located behind the body and are in contact with the ground G.

  [3] As shown in FIG. 9, first, the grasping member 4 grasped with the right hand 10 is positioned in front of the body, and the left foot 13 is stepped forward. At this time, the stock 1 on the left hand 11 side is located behind the body.

  [4] Next, as shown in FIG. 10, the right arm is moved backward and the ground G is kicked diagonally backward with the stock 1 on the right hand 10 side. At this time, the wheels 31 and 32 of the stock 1 on the right hand 10 side are prohibited from rotating backward by the one-way clutches 61 and 62, so that the ground G can be reliably kicked.

  As a result, the right arm receives a reaction force from the ground G via the stock 1, so that the right foot 12 is stepped forward while moving the weight to the left foot 13 and moved forward one step. At this time, the left arm is moved forward while the wheels 31 and 32 of the stock 1 on the left hand 11 side are in contact with the ground G (that is, the wheels 31 and 32 are rotated with respect to the ground), and the stock on the left hand 11 side is obtained. One gripping member 4 is positioned in front of the body.

  [5] Next, the left arm is moved backward and the ground G is kicked diagonally backward with the stock 1 on the left hand 11 side. At this time, since the wheels 31 and 32 of the stock 1 on the left hand 11 side are prohibited from rotating backward by the one-way clutches 61 and 62, the ground G can be reliably kicked.

  As a result, the left arm receives a reaction force from the ground G via the stock 1, so that the left foot 13 is stepped forward while moving its weight to the right foot 12 and moved forward one step. At this time, the right arm is moved forward, and the grip member 4 of the stock 1 on the right hand 10 side is positioned in front of the body. As a result, the state shown in FIG. 9 is obtained.

  [6] The above steps [4] and [5] are alternately repeated to continuously perform the walking motion. Such a walking movement is generally called Nordic walking (others such as stock walking).

  According to such an exercise method using the stock 1 of the present invention, walking using the reaction of the force applied to the rear by both arms, the stride can be widened and the walking speed can be increased. At the same time, the burden on both feet, especially knees and ankles, during walking is reduced, and the whole body exercise including both arms and both feet is activated.

  9 and 10, a pair of stocks 1 are used, but exercise may be performed using one stock 1. In this case, the gripping member 4 can be used by being gripped with one hand, or can be used by being alternately held by the left and right hands.

Second Embodiment
Next, a second embodiment of the Nordic walking stock of the present invention will be described.

  FIG. 11 is a side view showing a second embodiment of the Nordic walking stock of the present invention.

  Hereinafter, the exercise device of the second embodiment will be described focusing on the differences from the exercise device of the first embodiment described above, and the description of the same matters will be omitted. The same reference numerals are given to the same components as those in the above-described embodiment.

  The Nordic walking stock 1A according to the second embodiment of the present invention (hereinafter simply referred to as “stock 1A”) is substantially the same as the stock 1 of the first embodiment described above except that the position where the rotation mechanism 8 is provided is different. It is the same.

  As shown in FIG. 11, the rotation mechanism 8 is provided closer to the installation member 3 than the refraction part 23. According to such a rotation mechanism 8, the grounding member 3 can be rotated around the axis of the second straight portion 2B. In other words, the first shaft 21 can be rotated around the axis of the second straight portion 2B with respect to the grounding member 3.

  Thereby, when changing the advancing direction during the walking motion, the holding member 4 together with the first shaft 21 is rotated by rotating the first shaft 21 with respect to the grounding member 3 while kicking the ground G with the grounding member 3. Can be directed in a new direction of travel. As a result, the traveling direction can be changed smoothly without disturbing the walking rhythm. Therefore, the operability of the stock 1A is greatly improved, and an efficient walking exercise can be performed.

  According to the second embodiment as described above, the same effect as that of the exercise device of the first embodiment can be exhibited.

  As mentioned above, although the exercise equipment of this invention was demonstrated about each Example of illustration, this invention is not limited to these. For example, the shaft can be divided or folded into a plurality of parts. This is advantageous for transportation and storage.

  Further, for example, a buffer means may be provided on the shaft. As such a buffer means, for example, a shock absorber can be used. Thereby, the impact from the ground can be efficiently absorbed, and the burden on the wrist or the like of the hand holding the holding member is reduced. Further, the propulsive force forward can be increased by utilizing the repulsive force of the buffer means.

  Moreover, you may combine 1st Embodiment mentioned above and 2nd Embodiment. That is, a pair of rotation mechanisms may be provided, one of which may be provided closer to the gripping part than the bent part, and the other may be provided closer to the grounding member than the bent part. Thereby, each effect as mentioned above can be exhibited simultaneously.

  Further, in the above-described embodiment, the bending portion is bent in a “<” shape. However, the shape of the bending portion is particularly limited as long as the grounding member is curved or bent toward the ground. Not.

  Moreover, in embodiment mentioned above, although the earthing | grounding member demonstrated about what was comprised with one pair of wheels, it is not limited to this, You may be comprised with one wheel and it is three or more wheels. It may be configured.

  In the above-described embodiment, the measuring unit configured to measure the moving distance using the magnetic force of the magnet has been described. However, the configuration of the measuring unit is not particularly limited as long as the moving distance can be measured. Also, the installation position of the display unit is not particularly limited. For example, the display unit may be configured to be attached to the user's wrist, and may be configured to be attached to the shaft (for example, in the vicinity of the grip member or in the vicinity of the wheel). ) May be fixed.

It is a side view which shows 1st Embodiment of the stock for Nordic walking of this invention. It is a figure for demonstrating the effect | action of a bending part. It is sectional drawing which shows the rotation mechanism with which the stock for Nordic walking shown in FIG. 1 is provided. It is the top view seen from the arrow A side in FIG. It is a cross-sectional side view which shows the structure of the holding member of the stock for Nordic walking shown in FIG. It is sectional drawing which shows the structure of the earthing | grounding member of the stock for Nordic walking shown in FIG. It is sectional drawing which shows the structure of the rotation direction control means (one-way clutch) with which the Nordic walking stock shown in FIG. 1 is provided. It is sectional drawing which shows the structure of the rotation direction control means (one-way clutch) with which the Nordic walking stock shown in FIG. 1 is provided. It is a schematic diagram which shows the usage method of the stock for Nordic walking shown in FIG. It is a schematic diagram which shows the usage method of the stock for Nordic walking shown in FIG. It is a side view which shows 2nd Embodiment of the stock for Nordic walking of this invention.

Explanation of symbols

1, 1A Nordic walking stock 2 Shaft (pole)
2A 1st straight part 2B 2nd straight part 21 1st shaft 211 Tip part 212 Inner peripheral surface 213 Groove 214 Fixing part 22 Second shaft 221 Base end part 222 Projection part 223 Fixing part 23 Bending part 251, 252 Shaft member 251a Contraction Diameter portion 251b Screw portion 26 Connecting portion 3 Grounding member 31, 32 Wheel 311 Wheel 311a Through hole 312 Tire 4 Holding member 41 Body 411 Storage portion 412 Opening 413 Shaft hole 414 Female screw 42 Grip 421 Window portion 5 Angle adjusting means 51 Friction body 511 Concavity and convexity 52 Support member 522 Disc 521 Arm 53 Bolt 54 Clamping means 55 Fixed clamping members 551 and 561 Concavity and convexity 56 Movable clamping member 57 Handle 571 Knob 572 Rotating shaft 573 Engaging portion 574 Male screw 6 Rotation direction restricting means 61 and 62 One-way clutch 611 Inner ring 612 Surface 613 Outer ring 614 Roller 615 Spring 8 Rotating mechanism 81 Coil spring 811 Upper end 812 Lower end 9 Measuring means 91 Support member 92 Magnet 93 Magnet sensor 93a Detector 94 Display unit 10 Right hand 11 Left hand 12 Right foot 13 Left foot B1 Bolt G Ground S Airtight Space X axis

Claims (11)

An exercise tool having a shaft, a gripping member installed at a proximal end portion of the shaft, and a grounding member installed at a distal end portion of the shaft,
The shaft has a bent portion in the vicinity of the grounding member that is bent or bent so that the grounding member is directed toward the ground when the exercise tool is used.   The Nordic walking stock according to claim 1, wherein the grounding member has at least one wheel rotatably supported.   The stock for nordic walking according to claim 2, further comprising a rotation direction restricting means for rotating the wheel in only one direction.   The stock for nordic walking according to claim 3, wherein the rotation direction restricting means prohibits rotation of the wheel in a direction opposite to a traveling direction of the exercise tool.   The stock for nordic walking according to any one of claims 2 to 4, further comprising measuring means for measuring a cumulative rotational speed of the wheel and measuring a moving distance of the exercise equipment based on the cumulative rotational speed.   The stock for nordic walking according to any one of claims 1 to 5, wherein the shaft includes a rotation mechanism that allows the grounding member to rotate around an axis of the shaft.   The stock for nordic walking according to claim 6, wherein the rotation mechanism is provided closer to the gripping member than the bent portion.   The stock for nordic walking according to claim 6 or 7, wherein the rotation mechanism is provided closer to the grounding member than the bent portion.   The shaft includes a first shaft positioned on the base end side of the shaft, and a second shaft connected to a distal end portion of the first shaft and rotatably supported around an axis of the first shaft. The Nordic walking stock according to claim 6, wherein a connecting portion between the first shaft and the second shaft constitutes the rotation mechanism.   The rotating mechanism is configured to be able to rotate the grounding member left and right from the basic posture of the grounding member with respect to the shaft, and when the external force is not applied to the grounding member, the basic posture The stock for nordic walking according to any one of claims 6 to 9, wherein the stock is configured to hold   The stock for nordic walking according to any one of claims 1 to 10, further comprising angle adjusting means for fixing an angle between the shaft and the gripping member and adjusting the angle.

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