JP5486401B2 - skateboard - Google Patents

Description

  The present invention relates to a skateboard.

  Conventionally, a skateboard as described in Patent Document 1 below is known. Such a skateboard can run with both feet on the board body when sliding down an inclined land or after running on a flat ground. However, when traveling on a flat ground or climbing an inclined ground, one foot must be placed on the board body and the road surface must be kicked with the other foot.

JP 2004-81757 A

  When a skateboard is run while kicking the road surface with one foot, the burden on the kicking foot and waist is heavy, and it is not suitable for long-time use over long distances.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a skateboard that can stably run with a reduced burden on the legs and waist even when used for a long time over a long distance. Is to provide.

According to the present invention, in the skateboard, an elongated board body, a first wheel attached to one end side in the longitudinal direction of the board body, and the board body on the other end side in the longitudinal direction of the board body. A first step in which the second wheel is mounted and one of the user's legs is mounted, and reciprocates along the longitudinal direction of the board body. A second step that is slidably mounted and on which the other leg of the user is placed, is provided between the second step and the first wheel, and the first step is performed in accordance with the reciprocating sliding operation of the second step. And a drive mechanism that rotationally drives the wheels . Further, the skateboard of the present invention is provided so as to be movable between an operation unit gripped by the user, a braking position for braking the rotation of the first wheel, and a braking release position for releasing the braking of the rotation of the first wheel. And a braking body that is urged by the urging body and positioned at a braking release position, and one end of which is connected to the operation portion and the other end is connected to the braking body to perform braking by operating the operation portion. A brake device having a brake wire for moving the brake body positioned at the release position to the brake position. Furthermore, the skateboard according to the present invention includes a holding portion that is provided on the board main body and holds the operation portion in a braked state.

According to the present invention, one leg is placed on the first step, the other leg is placed on the second step, and the second step is slid back and forth along the longitudinal direction of the board body, thereby causing the first step via the drive mechanism. The skateboard can be driven by rotating the wheels. Therefore, it is not necessary to kick the road surface with one foot when running the skateboard, and the burden on the feet and waist when running the skateboard can be reduced. Furthermore, when carrying a skateboard on a car or the like, the second step can be locked by holding the operating part operated in the braking state with the holding part, and the second step moves back and forth during the transportation. It is possible to prevent the second step of reciprocating from colliding with other members loaded on a car or the like and damaging the members.

It is a perspective view which shows the skateboard of one embodiment of this invention. It is the perspective view which looked at the skateboard from the back side. It is a top view which shows a skateboard when a 2nd step is located in the 1st step side. It is the side view. It is a top view which shows a skateboard when a 2nd step is located in the 1st wheel side. It is the side view. It is a perspective view which shows the attachment state of the 2nd step to a board main body. It is a side view which shows a brake device. It is a front view which shows the holding state of the operation part of a brake device. It is a side view which shows the state which hold | grips a handle and carries a skateboard. It is a perspective view which shows the state which controlled rocking | fluctuation of a 1st step and made the skateboard self-supporting.

  As shown in FIGS. 1 and 2, the skateboard 1 includes a board body 2 formed in a long shape, a first wheel 3 attached to one end side in the longitudinal direction of the board body 2, and a board body. The first step 4 attached to the other end in the longitudinal direction 2, the pair of second wheels 5 attached to the first step 4, and the board body 2 reciprocatingly slides along the longitudinal direction of the board body 2 A second step 6 that can be attached, a drive mechanism 7 that rotationally drives the first wheel 3 in one direction (the direction in which the skateboard 1 travels) in accordance with the reciprocating slide operation of the second step 6, and a skate And a brake device 8 for decelerating and stopping the travel of the board 1.

  Guide rails 9 are fixed to the board body 2 formed in a long shape so as to be located on both sides along the longitudinal direction. These guide rails 9 are members that guide the second step 6 so as to be reciprocally slidable. The cross-sectional shape of the guide rails 9 is U-shaped, and the U-shaped release side is fixed to the board body 2 with the release side facing outward. ing.

  A pair of first holding members 10 are arranged and fixed on the lower surface on one end side in the longitudinal direction of the board body 2 in a direction orthogonal to the longitudinal direction of the board body 2. An axle 3a fixed to the first wheel 3 is rotatably held by these first holding members 10 via a bearing 3b.

  The first step 4 attached to the other end side in the longitudinal direction of the board main body 2 is arranged on the upper surface side of the board main body 2, and this support shaft 11 is supported by the support shaft 11 penetrating the first step 4 and the board main body 2. Is pivotable in a plane parallel to the upper surface of the board body 2. A pair of support legs 12 are fixed to the lower surface side of the first step 4, and a second wheel 5 is rotatably attached to the lower end side of each support leg 12. The skateboard 1 travels when these second wheels 5 and the first wheels 3 are grounded and rotated on the road surface.

  A mounting portion 13 (see FIG. 11) is provided on the upper surface side of the board body 2, and a stopper 14 for restricting the swing range of the first step 4 is detachably mounted on the mounting portion 13. When the stopper 14 is attached to the attachment portion 13 and the first step 4 is swung with the support shaft 11 as a fulcrum, the first step 4 is swung to the positions indicated by two-dot chain lines D and E in FIG. One side of the front side of the first plate abuts against the stopper 14, and the swing range of the first step 4 is restricted. A round hole or a screw hole can be used as the mounting portion 13, and a stopper 14 is formed with a head having a larger diameter than the round hole at one end of a round bar portion that can be inserted into the round hole as the mounting portion. Or what formed the head in the end of the screw rod part screwed in the screw hole which is an attachment part can be used.

  Further, the skateboard 1 is provided with a stopper 14 removed from the attachment portion 13 which is an attachment position for restricting the swing range of the first step 4 so as to extend over the first step 4 and the board body 2, thereby A rocking stop portion for stopping the rocking of step 4 is provided. This swing stop portion is formed in the first step 4 and the through hole 15 into which the round bar portion and screw rod portion of the stopper 14 are inserted, and the round bar formed in the board body 2 and inserted into the through hole 15. And an engagement hole (not shown) with which the tip of the screw rod portion is engaged.

  The first step 4 is a portion on which the user A who uses the skateboard 1 puts one leg B of the user A when the skateboard 1 travels. The 1st hook 16 which prevents that one leg B mounted in the 1st step 4 slips off with respect to the user's A body axis | shaft is fixed.

  The second step 6 attached to the board body 2 so as to be slidable back and forth along the longitudinal direction of the board body 2 is a portion on which the other leg C of the user A is placed when the user A runs the skateboard 1. And the second hook 17 that prevents the other one foot C placed on the second step 6 from sliding off with respect to the body axis of the user A is provided at the end on the upper surface side of the second step 6. It is fixed.

  A pair of roller holding portions 18 are fixed to the lower surface side of the second step 6. As shown in FIG. 7, these roller holding portions 18 include a plurality of rollers 19 that can rotate around the horizontal axis when the second step 6 is positioned horizontally, and the second step 6. A plurality of rollers 20 that are rotatable about a vertical axis when mounted horizontally are attached. The rollers 19 and 20 are in contact with the inner surface of the guide rail 9 fixed to the board body 2 and rotate, whereby the second step 6 guided by the guide rail 9 is moved in the longitudinal direction of the board body 2. Slide back and forth along.

  Further, a pair of support legs 21 that are opposed to each other in the direction orthogonal to the sliding direction of the second step 6 and that are positioned outside the roller holding portion 18 are fixed to the lower surface side of the second step 6. An auxiliary wheel 22 is attached to the lower end side. These auxiliary wheels 22 are separated from the road surface when the first wheel 3 and the second wheel 5 are in contact with each other and the board body 2 is positioned parallel to the road surface, and the skateboard 1 moves in the traveling direction. When tilted in the left-right direction, the auxiliary wheel 22 that is on the lower side in the tilt direction is attached so as to contact the road surface.

  Stoppers 6 a and 6 b for restricting the sliding range of the second step 6 are attached to both ends of the upper surface of the board body 2 in the longitudinal direction. The second step 6 slid along the longitudinal direction of the board body 2 is restricted from sliding to the first wheel 3 side by contacting the stopper 6a, and to the first step 4 side by contacting the stopper 6b. The sliding motion is regulated.

  The drive mechanism 7 is a mechanism that rotationally drives the first wheel 3 in one direction (direction in which the skateboard 1 travels) in accordance with the reciprocating slide operation of the second step 6. The drive mechanism 7 includes a first sprocket 24 attached to the axle 3a of the first wheel 3 via a one-way clutch 23, a holding portion 25 fixed to the lower surface on the other end side of the board body 2, and a holding portion. A second sprocket 26 rotatably held by 25 and a chain that is spanned between the first sprocket 24 and the second sprocket 26 and is an endless belt for power transmission partially fixed to the second step 6 27. A connecting piece 28 for connecting the pair of roller holding portions 18 is provided on the lower surface side of the second step 6, and an insertion hole 28 a is formed in the connecting piece 28. The chain 27 is inserted through the insertion hole 28 a, and a portion of the chain 27 that is inserted through the insertion hole 28 a is fixed to the connecting piece 28. Note that a timing belt may be used instead of the chain 27 as the endless belt for power transmission.

  By fixing the chain 27 to the connecting piece 28, the chain 27 and the second step 6 are fixed, and the chain 27 reciprocates together with the reciprocating slide operation of the second step 6. As the chain 27 reciprocates, the first sprocket 24 and the second sprocket 26 rotate. In addition, the one-way clutch 23 interposed between the first sprocket 24 and the axle 3a has a first sprocket 24 when the second step 6 slides from the first step 4 side to the first wheel 3 side. The rotation is transmitted to the axle 3a, and the rotation of the first sprocket 24 when the second step 6 slides from the first wheel 3 side to the first step 4 side is not transmitted to the axle 3a. Further, the second step 6 and the chain 27 are fixed in such a way that the sliding direction when the second step 6 slides from the first step 4 side to the first wheel 3 side and the traveling direction of the skateboard 1 are the same direction. It is done to be.

  The brake device 8 is a device that decelerates and stops the running of the skateboard 1 by restricting the rotation of the first wheel 3. The brake device 8 has an operation portion 29 gripped by the user A and a braking position that contacts the outer peripheral surface of the first wheel 3 to brake the rotation of the first wheel 3 (a position indicated by a two-dot chain line in FIG. 8). The board main body 2 is rotatable about a support shaft 30a as a fulcrum to a braking release position (a position indicated by a solid line in FIG. 8) that releases the braking of the rotation of the first wheel 3 away from the outer peripheral surface of the first wheel 3. A brake body 30 attached to the spring 30, a spring 31 that is a biasing body that biases the brake body 30 so as to be positioned at the brake release position, one end connected to the operation portion 29, and the other end to the brake body 30. A brake wire 32 is provided that moves the braking body 30 to the braking position by connecting and operating the operation unit 29. The brake wire 32 has a known configuration including an outer wire 32a and an inner wire 32b.

  The operation portion 29 of the brake device 8 includes a handle portion 29a and a lever 29b. By gripping the lever 29b toward the handle portion 29a, the inner wire 32b is pulled and the braking body 30 is rotated from the braking release position to the braking position, the rotation of the first wheel 3 is braked, and the running of the skateboard 1 is decelerated.・ Stopped. A pair of guide rails 9 fixed to both sides along the longitudinal direction of the board main body 2 extend downward from the lower surface of the board main body 2, and a lever 29b is provided between the guide rails 9 and the handle portion 29a. The operation unit 29 that is gripped to the side and brought into a braking state can be held as shown in FIG. Accordingly, the pair of guide rails 9 function as a holding unit that holds the operation unit 29 in a state where the operation unit 29 is braked.

  A handle that is gripped when carrying the skateboard 1 in a state where the first wheel 3 is separated from the road surface and the second wheel 5 is in contact with the road surface at one end of the board body 2 where the first wheel 3 is provided. 33 is attached. 10 and 11, the handle 33 has a gripping position protruding from one end side of the board main body 2 and a storage position stored below the one end side of the board main body 2 as shown in FIG. It is provided so that rotation is possible.

  In such a configuration, when the skateboard 1 is run, the first wheel 3 and the second wheel 5 are grounded to the road surface as shown in FIG. Is placed on the first step 4 and the other leg C is placed on the second step 4. Further, the user A holds the operation unit 29 of the brake device 8 with one hand.

  The user A applies a force to the one foot C from the state shown in FIG. 4 and slides the second step 6 toward the first wheel 3 along the longitudinal direction of the board body 2 as shown in FIGS. 5 and 6. .

  When the second step 6 slides to the first wheel 3 side, the chain 27 moves in the direction of the arrow X (see FIG. 6) along with the sliding operation of the second step 6, and the first sprocket 24 and the second sprocket 24 move along with the movement of the chain 27. The two sprockets 26 rotate in the Y direction (see FIG. 6).

  A one-way clutch 23 is provided between the first sprocket 24 and the axle 3a of the first wheel 3, and this one-way clutch 23 is arranged such that the second step 6 is from the first step 4 side to the first wheel 3 side. The structure is such that the rotation of the first sprocket 24 is transmitted to the axle 3a only when it is slid. Therefore, when the second step 6 is slid from the first step 4 side to the first wheel 3 side, the axle 3a and the first wheel 3 rotate together with the first sprocket 24 in the arrow Y direction (see FIG. 6). Driven. As a result, the skateboard 1 travels in the Z direction (see FIG. 6) with the first wheel 3 in the forward direction.

  After the second step 6 is moved to the first wheel 3 side as shown in FIGS. 5 and 6, the user A applies a reverse force to the one foot C, and the second step 6 is moved to the length of the board body 2. Slide along the direction to the first step 4 side.

  When the second step 6 slides to the first step 4 side, the chain 27 moves in the direction opposite to the arrow X direction along with the sliding operation of the second step 6, and the first sprocket 24 and the second sprocket 24 move along with the movement of the chain 27. The sprocket 26 rotates in the direction opposite to the arrow Y direction. Then, the rotation of the first sprocket 24 in this case is not transmitted to the axle 3a by the action of the one-way clutch 23, and the first sprocket 24 rotates idly.

  Since the first wheel 3 continues to rotate in the direction in which the skateboard 1 travels due to inertia while the first sprocket 24 is idling in the direction opposite to the Y direction, the second step 6 is changed to the first step 4. The skateboard 1 continues to run in the direction of arrow Z (see FIG. 6) while sliding to the side.

  Therefore, the user A who puts one leg B on the first step 4 and puts the other leg C on the second step 6 moves the second step 6 back and forth along the longitudinal direction of the board body 2. The skateboard 1 can be continuously driven in the direction of the arrow Z (see FIG. 6) continuously. And when this skateboard 1 is run, it is not necessary for the user A to kick the road surface with one foot, and even if the skateboard 1 is used for a long distance for a long time, the burden on the user A's feet and waist Can be reduced.

  When turning the rudder of the skateboard 1, a force is applied to the first step 4 from one leg B, and the first step 4 is swung around the support shaft 11 as a fulcrum. For example, when the first step 4 is swung in the direction indicated by a two-dot chain line D in FIG. 3, the skateboard 1 is steered in the direction indicated by the arrow d. When the first step 4 is swung to the position indicated by the two-dot chain line E in FIG. 3, the skateboard 1 is steered in the direction indicated by the arrow e.

  The second step 6 is provided with a second hook 17. When the second step 6 is slid toward the first wheel 3, the one foot C placed on the second step 6 is the body axis of the user A. In contrast, it is possible to prevent the skateboard 1 from sliding down in the outward direction (the front side in the traveling direction of the skateboard 1). Further, the first step 16 is provided with a first hook 16, and when the first step 4 is swung to steer, the one foot B placed on the first step 4 is attached to the body axis of the user A. On the other hand, it is possible to prevent sliding down in the outer direction (the rear side in the traveling direction of the skateboard 1).

  Further, since the auxiliary wheel 22 is provided in the second step 6, when the skateboard 1 tilts to the side along the longitudinal direction of the board body 2 during traveling, the tilt amount becomes a constant amount. Since the auxiliary wheel 22 contacts the road surface when it reaches, it is possible to prevent an accident that the skateboard 1 tilts further and falls, and stability during running can be improved. In particular, since the auxiliary wheel 22 is provided in the second step 6, the auxiliary wheel 22 can prevent a fall accident even when the second step 6 slides in any position.

  The traveling speed of the skateboard 1 is determined by the number of teeth of the first sprocket 24 and the sliding speed of the second step 6. For example, when the number of teeth of the first sprocket 24 is the same, the traveling speed of the kate board 1 increases as the sliding speed of the second step 6 is increased, and the sliding speed of the second step 6 is the same. As the number of teeth of the first sprocket 24 is smaller, the traveling speed of the skateboard 1 becomes faster.

  When the traveling of the skateboard 1 is decelerated / stopped, the operation unit 29 of the brake device 8 is operated to hold the lever 29b toward the handle unit 29a. As a result, the inner wire 32b is pulled, and the braking body 30 located at the braking release position (position indicated by a solid line in FIG. 8) rotates to the braking position (position indicated by a two-dot chain line in FIG. 8) with the support shaft 30a as a fulcrum. Then, the braking body 30 rotated to the braking position comes into contact with the outer peripheral surface of the first wheel 3, the rotation of the first wheel 3 is braked, and the running of the skateboard 1 is decelerated and stopped.

  Therefore, by providing such a brake device 8, it is possible to quickly and reliably decelerate and stop the traveling of the skateboard 1.

  Further, since the user A riding on the skateboard 1 holds the operation unit 29 of the brake device 8, even if the operator A falls from the skateboard 1, the skateboard must be released without releasing the hand from the operation unit 29. 1 can be prevented from running out of control and safety can be improved.

  Further, the rotation of the first wheel 3 is braked by gripping the lever 29b of the operation unit 29 toward the handle portion 29a, and the second step 6 slides from the first step 4 side to the first wheel 3 side by this braking. Is regulated. Therefore, when the skateboard 1 is loaded and transported in a car or the like, by holding the operation portion 29 operated in a braking state between the pair of guide rails 9 functioning as a holding portion, as shown in FIG. The second step 6 can be slid to the first step 4 side and locked at the position where it abuts against the stopper 6b. Thereby, it is possible to prevent the second step 6 from reciprocating along the longitudinal direction of the board main body 2 during conveyance, and the second step 6 that reciprocates is attached to other members stacked in a car or the like. It is possible to prevent the member from being damaged by collision.

  When the operator A carries the skateboard 1 by hand, as shown in FIG. 10, the handle 33 is rotated to the gripping position, the first wheel 3 is moved away from the road surface, and the second wheel 5 is grounded to the road surface. The handle 33 can be pulled. Thereby, the effort at the time of carrying the skateboard 1 by hand can be reduced. In this case, the second step 6 is positioned so as to contact the stopper 6b, and the operation unit 29 of the brake device 5 is held between a pair of guide rails 9 functioning as a holding unit as shown in FIG. It is preferable.

  When the skateboard 1 is to stand alone (self-standing), as shown in FIG. 11, the stopper 14 is removed from the mounting portion 13, and the removed stopper 14 is inserted into the through hole 15 formed in the first step 4. At the same time, the tip of the stopper 14 is engaged with an engagement hole formed in the board body 2. As a result, the swinging motion of the first step 4 with the support shaft 11 as a fulcrum is restricted, and one side on the rear side of the first step 4 is positioned in a direction perpendicular to the longitudinal direction of the board body 2. The skateboard 1 can be made independent in a posture in which one side of the rear side of 4 is grounded. In this case, the second step 6 is positioned at a position where it abuts against the stopper 6b, and the operation portion 29 of the brake device 5 is held between a pair of guide rails 9 functioning as a holding portion as shown in FIG. It is preferable to do.

DESCRIPTION OF SYMBOLS 1 Skateboard 2 Board body 3 First wheel 3a Axle 4 First step 5 Second wheel 6 Second step 7 Drive mechanism 8 Brake device 9 Holding part (a pair of guide rails)
13 Mounting position (Mounting part)
14 Stopper 16 First hook 17 Second hook 22 Auxiliary wheel 23 One-way clutch 24 First sprocket 26 Second sprocket 27 Endless belt for power transmission (chain)
29 Operation part 30 Brake body 31 Biasing body (spring)
32 Brake wire 33 Handle A User B One leg C The other leg

Claims (5)

A long board body (2) ;
A first wheel (3) attached to one end of the board body in the longitudinal direction;
First mounted on the other end in the longitudinal direction of the board main body so as to be able to swing in a plane parallel to the upper surface of the board main body, to which the second wheel (5) is mounted and one leg of the user is mounted. Step (4) ;
A second step (6) , wherein the board body is slidably mounted along the longitudinal direction of the board body so that the other leg of the user is placed;
A drive mechanism (7) provided between the second step and the first wheel for rotating the first wheel in accordance with the reciprocating slide operation of the second step;
The urging body is provided so as to be movable to an operation unit (29) gripped by the user, a braking position for braking the rotation of the first wheel, and a braking release position for releasing the braking of the rotation of the first wheel. The braking body (30) that is energized and positioned at the braking release position, and one end of which is connected to the operation part and the other end is connected to the braking body to perform the braking operation on the operation part. A brake device (8) comprising a brake wire (32) for moving the positioned braking body to a braking position;
A holding portion (9) provided in the board body and holding the operation portion in a braking operation;
A skateboard characterized by comprising: The second step (6) is provided with auxiliary wheels (22) positioned on both sides of the board body (2) in a direction orthogonal to the sliding direction of the second step. Item 1. A skateboard according to item 1 . A stopper (14) for restricting the swing range of the first step is detachably attached to the board body (2), and the stopper removed from the mounting position for restricting the swing range of the first step is The skateboard according to claim 1 or 2, wherein a swing stop portion is provided to stop swinging of the first step by being mounted across the first step and the board body . The first step is provided with a first hook (16) for preventing one of the legs placed on the first step from sliding outward with respect to the user's body axis, and the second step includes the second hook. The second hook (17) is provided to prevent the other leg on the step from sliding outward with respect to the user's body axis. Skateboard as described in. One end of the board body is provided with a handle (33) for gripping when carrying the skateboard in a state where the first wheel is separated from the road surface and the second wheel is in contact with the road surface. The skateboard according to any one of claims 1 to 4 .

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