JP4501032B2 - Traveling equipment - Google Patents

Description

  The present invention relates to a traveling tool that is mounted on both feet of a rider and is capable of traveling by alternately stepping on a step.

  Usually, a running tool such as a roller skate has a step for placing the rider's feet and a roller rotatably disposed under the step so that the rider kicks the floor. There are two main types: one that moves forward with a propulsive force and one that moves forward with a separate propulsion means. However, the present applicant has proposed a running tool that can obtain a propulsive force by performing a stepping action using the same muscular strength as when walking (see Patent Document 1).

Such a traveling tool is connected to the front and rear wheels via a frame, and transmits a lifting operation while transmitting a pair of steps that move up and down by the left and right stepping motions of the rider to the rear wheels. And a spring that is compressed in the process of lowering the step and is restored to the pull side when the step reaches the lower end or its vicinity, and that restoring force is transmitted to the rear wheel to rotate the rear wheel It was equipped with.
JP 2004-73659 A

  However, in the above-described conventional traveling tool, the energy generated in the process in which the spring is lowered from the rising end or its vicinity is accumulated by the spring, and the rear wheel is rotated by the accumulation means. Although the undulation can be suppressed and more stable running can be achieved, there are the following problems.

  When trying to obtain a greater propulsive force of the running tool for the stepping force of one step, it is preferable to use a spring with a large restoring force (spring force), but if the restoring force is too large, the spring will be compressed There is a problem that an excessive stepping force is required when traveling. Therefore, if a spring having a restoring force substantially equal to the rider's body weight is used, it is sufficient to put the weight alternately on the left and right feet and step on the platform, so that a large driving force can be obtained with an appropriate stepping force.

  However, when a spring having a restoring force substantially equal to the rider's body weight is used, when the vehicle starts to travel, the advance distance by one step is small due to acceleration resistance, so that the step that has been stepped on is at the lower end or in the vicinity thereof. If you try to step on the other step when you reach the weight, the weight will be distributed to each step of both feet and the weight applied to one step (pressing force) will become smaller, and the spring that you stepped on first Will not be fully extended.

  However, since the restoring force of the spring on the side that was stepped on first is not transmitted to the rotational force of the rear wheel and remains relatively large, the restoring force becomes larger than the weight with respect to the step board that has been reduced as described above. Ends and raises the platform. Therefore, the conventional traveling tool has a problem in that when the traveling is started, the step platform is raised, the center of gravity of the rider is raised, and the vehicle becomes unstable.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a traveling tool capable of avoiding the rise of the platform at the start of traveling and enabling stable traveling.

  The invention according to claim 1 is a frame having a front wheel and a rear wheel; a step that can be raised or lowered with respect to the frame; and a step on which a rider's foot can be placed; An energy for propelling the platform and the frame by transmitting the restoring force to the rear wheel by rotating the rear wheel by a spring that restores to the pull side when the platform reaches the lower end or its vicinity. Accumulating means and a descending operation of the step platform are transmitted to the rear wheel via the energy accumulation unit and rotated to advance the step platform, and an upward movement of the step platform is blocked from being transmitted to the rear wheel. A travel mechanism that is mounted on both feet of the rider and is capable of traveling by alternately stepping on the step, the step reaching the lower end or the vicinity thereof. At the time, the locking means that locks the step to the frame and restricts the upward movement of the step, and the lock means is released in the process of restoring the energy storage means to the pull side, A travel tool comprising: unlocking means for allowing the step platform to move upward.

  According to a second aspect of the present invention, in the traveling tool according to the first aspect, the unlocking means includes an unlocking pin that is displaced together with compression and restoration of the energy storage means, and the locking means is the step platform. And a rocking member having a claw portion that can be locked to the stopper portion formed on the arm and an arm portion that can come into contact with the unlocking pin in the course of the displacement of the unlocking pin. In this case, the claw portion is separated from the stopper portion by releasing the locking by abutting the arm portion and swinging the swinging member.

  According to the first aspect of the present invention, when the step reaches the descending end or its vicinity, the operation of the step toward the rising side is restricted by the locking means, and the energy storage means is restored to the pulling side. Since the operation of the step platform to the ascending side is allowed by the lock release means, it is possible to avoid a rise of the step platform particularly at the start of traveling and enable stable traveling.

  According to the invention of claim 2, since the lock release pin abuts on the arm portion and swings the swinging member, the claw portion is separated from the stopper portion to release the locking, so that the stepping platform at the start of traveling As a result, it is possible to avoid the rise of the vehicle and to enable stable traveling, and it is possible to step on the subsequent continuous platform.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The traveling tool according to the present embodiment is mounted on both feet of the rider and can travel by alternately stepping on a stepping platform, and includes a stepping platform 1 and a rear wheel 10 as shown in FIGS. 1 and 2. The first frame 2, the second frame 3 including the front wheels 11, the swing pin 4, the one-way clutch 5, the energy storage unit 6, and the steering unit 26 constitute one traveling tool.

  The step 1 is provided with a fixture 7a for fixing a shoe 7 worn by the rider on the upper surface thereof, so that the rider's feet can be placed thereon. On the lower surface of the step 1, a support fitting 8 that supports one end of the first frame 2 is formed on the front end side (left side in FIG. 1), and one end of the second frame 3 is connected to the swing shaft 9 at the rear end. Support metal fittings 1a that are swingably supported with respect to each other are attached. Further, the support fitting 8 is formed with a long hole 8a extending in the horizontal direction (the left-right direction in the figure), and the one end pin 2a protruding from one end of the first frame 2 is inserted into the long hole 8a. The first frame 2 is allowed to be displaced in the same direction.

  The first frame 2 extends rearward (retracting direction) from the support bracket 8 described above and has a rear wheel 10 at the tip thereof. As shown in FIG. It mainly comprises a rod-shaped frame 2b and a connecting shaft 48b that couples the two rod-shaped frames 2b. The first frame 2 is attached with a transmission mechanism for transmitting a swinging motion around the swing pin 4 of the first frame 2 to the rear wheel 10. Here, the swing pin 4 supports both the frames so as to be swingable at the crossing position of the first frame 2 and the second frame 3, and moves up and down in conjunction with the vertical movement of the step platform 1.

  The transmission mechanism transmits the lowering operation of the step 1 to the rear wheel 10 via an energy storage means 6 to be described later, rotates the step 1, and moves the step 1 forward, and transmits the rising operation of the step 1 to the rear wheel 10. It is for cutting off. More specifically, the transmission mechanism mainly includes the one-way clutch 5, the chain 14 suspended from the sprockets 16 and 17, the chain 18 suspended from the sprockets 15 and 21, and the fixture 19. . The sprocket 16 is rotatable about the rotation axis of the sprocket 15 and is configured so that the rotation in the forward rotation direction of the sprocket 16 can be transmitted to the sprocket 15 via the one-way clutch 5. A bearing is interposed in the sprocket.

  A pair of rollers 19 a spaced apart from each other by a predetermined size is disposed on the fixture 19, and the tip of the second frame 3 (more specifically, the pin-shaped member 39 of the energy storage means 6 described later is interposed between the rollers 19 a. The tip is clamped (see FIG. 3). The pin-shaped member 39 is connected to the support member 38 via the movable bush 13, and since the support member 38 is connected to the tip of the second frame 3, when the second frame 3 swings. The chain 14 is configured to operate.

  The one-way clutch 5 transmits a force for rotating the rear wheel in the forward direction, but does not transmit a force in the opposite direction. The one-way clutch 5 is used for a rear wheel such as a bicycle. be able to. As shown in FIG. 2, the one-way clutch 5 has an outer peripheral surface supported by a housing 22, and a disc spring 23 is disposed via a presser plate 24 to press the end of the housing 22 against the sprocket 15. The housing 22, sprocket 15, presser plate 24, and disc spring 23 function as a torque limiter to prevent the device from being destroyed when an excessive stepping load or reverse rotation of the rear wheel is performed. Note that reference numeral 25 in the figure indicates an adjustment nut for adjusting the pressing force by the disc spring 23.

  On the other hand, the energy storage means 6 stores energy generated in the process in which the step 1 descends from the rising end or its vicinity, and releases the stored energy when the step 1 reaches the lower end or its vicinity. The wheel 10 is rotated, and the spring 36, the movable bush 13 and the bush 12 as seats for the spring 36, the rod 37 inserted through the spring 36, and the support member fixed to the tip of the second frame 3 38.

  One end of the both ends of the rod 37 is fixed to the support member 38, and the bush 12 is fixed to the other end. The movable bush 13 is connected to the chain 14 via a pin-shaped member 39 and is movable between the bush 12 and the support member 38. As a result, when the tip of the second frame 3 descends as the step 1 descends, the fixture 19 is pushed down via the pin-shaped member 39 while compressing the spring 36 as shown in FIG.

  However, as shown in FIG. 8, when the step 1 reaches the descending end or the vicinity thereof, the compression amount of the spring 36 is maximized. In this state, elastic energy is stored in the spring 36. That is, the spring 36 is compressed while the step 1 is lowered, and the potential energy of the step 1 is accumulated as the elastic energy of the spring 36.

  Thereafter, the spring 36 is restored to the pulling side (that is, the side where the spring extends) when the step 1 reaches the descending end or the vicinity thereof, so that the movable bush 13 is pushed down until it comes into contact with the support member 38. Accordingly, the tip of the pin-shaped member 39 moves in an arc shape while rotating the chain 14, and the sprocket 16 (and sprocket 17) is rotated by the rotation of the chain 14. Is transmitted to the sprocket 15. If the rotational force is excessive, slippage occurs between the housing 22 and the sprocket 15 and transmission of the rotational force is limited.

  As the sprocket 15 rotates, the sprocket 21 is rotated via the chain 18, and the rotating shaft 10a is rotated together with the rear wheel 10 by the rotational force, thereby providing a propulsive force for moving the traveling tool forward. On the other hand, when the step 1 rises after reaching the bottom dead center, the first frame 2 and the second frame 3 are swung in the same manner as described above, and the sprocket 16 is moved in the opposite direction via the chain 14. Although it is rotated, since the transmission of the force thereafter is interrupted by the one-way clutch 5, rotation in the reverse direction with respect to the rear wheel 10 is avoided.

  The second frame 3 extends from the aforementioned swing shaft 9 to the front side (forward direction) and has a front wheel 11 at the tip thereof. The tip of the second frame 3 is shown in FIGS. 1 and 4. As shown, when the second frame 3 is tilted as the step 1 is tilted, steering means 26 for steering the front wheels in that direction is disposed.

  The steering means 26 is offset by a predetermined amount with respect to the extending direction of the second frame 3 and is fixed to the distal end of the second frame 3, and the connecting shaft 27 is rotatable in the axial direction. An upper frame 28 to be supported, and a lower frame 29 in which two front wheels 11 are attached in parallel to each other via an axle 11a, and are rotatably attached to the lower surface of the upper frame 28 in a plane parallel to the floor surface; The arm frame 30 mainly extends from the tip of the second frame 3 to the lower frame 29 and changes the inclination of the second frame 3 in the inclination direction of the lower frame 29.

  The upper frame 28 is rotatably attached to the tip of the connecting shaft 27 by a fixed washer 31, and the lower frame 29 is attached to the upper frame 28 by a pin 32 inserted from the lower surface thereof and is parallel to the floor surface. It can be freely rotated in any direction. Further, the arm pin 30 is fitted to a rotating metal fitting 35 fixed to the tip of the second frame 3 and attached to the lower frame 29.

  With the above configuration, when the rider inclines to make a turn, the first frame 2 and the second frame 3 and the like are also tilted via the step platform 1. At this time, the second frame 3 is connected to the upper frame 28. And the arm pin 30 also rotates while pushing the lower frame 29 along with the rotation. As a result, the pushed lower frame 29 is steered so that the rider's feet are inclined, that is, toward the inside of the turn. Therefore, if the rider tilts his / her foot during the turn, the front wheel 11 is steered in that direction, so a smoother turn can be realized.

  Further, a ball 34 urged by a spring 33 is disposed on a connection surface with the lower frame 29 of the upper frame 28, and the ball 34 is arranged in a state where the front wheel 11 faces the straight traveling direction. 29 is in a state of being fitted into a recess 29a formed on the upper surface. As a result, when the lower frame 29 is rotated to change the direction of the front wheel 11, a force is exerted so that the ball 34 can be accommodated in the recess 29 a, so that the direction of the front wheel 11 is smoothly directed in the normal direction (straight forward direction) It is returned to.

  Further, as shown in FIGS. 5 and 6, a connecting shaft 48 b fixed to the second frame 2 is disposed in the vicinity of the rear wheel 10 in the first frame 2. A collar 48a is rotatably supported on the outer periphery of the connecting shaft 48b, and a brake means 47 is welded to the collar 48a. The brake means 47 rotates around the connecting shaft 48b together with the collar 48a so as to be in contact with the rear wheel 10 (state shown in FIG. 5) or separated (state shown in FIG. 6). Can be braked, and is connected to the operation lever 50 via a wire 49.

  The operation lever 50 is configured to be paired with the gripping bar 51 and swingable with respect to the gripping bar 51. When the rider swings the control lever 50 while gripping the gripping bar 51, the wire 49 The abutting operation with respect to the rear wheel 10 of the brake means 47 is performed via On the other hand, when the rider releases his hand from the operation lever 50, the braking means 47 is rotated in a direction away from the rear wheel 10 by the biasing force of the spring 52, and the brake of the rear wheel 10 is released.

  In addition, a holding means 53 is formed at the tip of the operation lever 50 to connect the operation lever 50 to the gripping bar 51 in a swinging state. That is, in the state where the holding means 53 is connected to the gripping bar 51, the operation lever 50 is held in the operating state, and the contact state of the brake means 47 with the rear wheel 10 can be maintained. Thereby, even if the operating lever 50 is not gripped when the traveling tool is mounted, the traveling tool can be prevented from moving, and safety can be further improved.

  Here, in the traveling tool according to the present embodiment, as shown in FIG. 3, when the step 1 reaches the lower end or in the vicinity thereof, the step 1 is locked to the first frame 2 and the step 1 is raised. Locking means 40 for restricting the movement to the side, and unlocking for releasing the locking means 40 in the process in which the spring 36 of the energy storage means 6 is restored to the pulling side and allowing the stepping board 1 to move upward. An unlocking pin 45 is provided as a means. A stopper portion 46 extends from the rear end of the step 1 in a direction perpendicular to the paper surface of FIG.

  Specifically, the lock means 40 includes a swing member 41 that can swing around a swing shaft 42 formed on the first frame 2, and the swing member 41 includes an arm portion 41 a and an arm portion 41 a. And claw portion 41c and R portion 41d. Further, the swinging member 41 is formed with a locking portion 41 b that locks one end of the return spring 44, and the other end of the return spring 44 is engaged with a locking portion 2 d formed on the first frame 2. It has been stopped. As a result, the swinging member 41 is always urged counterclockwise in the figure with the swinging shaft 42 as the center, and further contacts in the same direction by contacting the stopper pin 43 formed on the first frame 2. Oscillation is restricted.

  By the way, as shown in FIG. 8, the claw portion 41c of the swing member 41 is a portion that can be locked to the stopper portion 46 formed on the step 1 when the step 1 reaches the lower end or its vicinity. The movement of the step 1 to the ascending side is regulated by such locking. As a result, for example, the spring 36 has a restoring force substantially equal to the rider's weight, and even when the step 1 is stepped on the left and right feet alternately at the start of running, It is possible to avoid the step 1 that has been stepped up from rising.

  The unlocking pin 45 extends horizontally from the wall surface of the movable bush 13 in the energy storage means 6 and is displaced (raised and lowered) along with compression and restoration of the spring 36 in the energy storage means 6. In the course of the displacement (downward movement), the swinging member 41 can be swung by coming into contact with the arm portion 41a of the swinging member 41 in the locked state. Thus, when the swinging member 41 swings, the claw portion 41c is separated from the stopper portion 46 and can be unlocked as shown in FIGS.

  That is, when the step 1 reaches the lower end or the vicinity thereof, the claw portion 41c is engaged to restrict the rising operation of the step 1, and when the spring 36 of the energy storage means 6 is extended by a predetermined dimension, The pin 45 comes into contact with the arm portion 41a and the swinging member 41 swings, and the latching by the claw portion 41c is released so that the step 1 is allowed to rise. Therefore, it is possible to avoid the rise of the step 1 at the start of the travel and enable stable travel, and it is possible to step on the subsequent step 1 after that.

Next, the operation of the traveling tool will be described.
First, when the rider steps on the step 1 from the state shown in FIG. 1, the spring 36 of the energy storage means 6 is compressed and the R portion 41 d of the swing member 41 is moved to the stopper portion 46 as shown in FIG. 7. It will abut. When the step 1 is further lowered from this state and reaches the lower end or the vicinity thereof, the swinging member 41 swings slightly clockwise around the swinging shaft 42 due to the shape of the R portion 41d, and then the return spring 44 The claw portion 41c is locked to the stopper portion 46 in the process (see FIG. 8).

  In this way, when the rising operation of the step 1 is regulated, the spring 36 of the energy storage means 6 is restored to the tension side, so that the pin-like member 39 is operated by the restoring force, and the rear wheel 10 as described above. Rotate to advance the running tool. Then, when the spring 36 is extended by a predetermined dimension and the restoring force is gradually reduced, as shown in FIG. 9, the unlocking pin 45 is lowered and comes into contact with the arm portion 41a of the swing member 41, as shown in FIG. As shown, the rocking member 42 is swung by further lowering. Thus, the claw portion 41c is separated from the stopper portion 46 by the swinging of the swinging member 41, and the locking is released. Therefore, as shown in FIG. It will be.

  According to the present embodiment, when the step 1 reaches the lower end or in the vicinity thereof, the operation of the step 1 to the rising side is restricted by the locking means 40, and the spring 36 of the energy storage means 6 is moved to the tension side. In the process of restoration, the upward movement of the step 1 is allowed by the lock release means, so that it is possible to avoid the rise of the step at the start of traveling, and to make stable traveling possible.

  Further, according to the present embodiment, the brake means 47 capable of braking the rear wheel 10 is provided. For example, the step 1 is stepped on while the rear wheel 10 is stopped by the brake means 47 and then lowered. If the swing member 41 restricts the upward movement of the step 1 by reaching the end or the vicinity thereof, the rear wheel 10 can be stopped and moved with a low center of gravity. Therefore, it is possible to move in places where the turning tool cannot turn with the turning radius, and it can be used for purposes other than braking.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, as shown in FIG. 12, a frame F having a front wheel 11 on the front side and a rear wheel 10 on the rear side, and a rider The step 1 on which the foot can be placed, the rod R that allows the step 1 to rise or fall with respect to the frame F, and the time when the step 1 is compressed in the process of lowering and reaches the lower end or the vicinity thereof. Thus, the present invention can also be applied to a traveling tool having an energy storage means 6 composed of a spring 36 that is restored to the tension side.

  In this case, the same swinging member 41 as in the previous embodiment is disposed on the frame F so that it can be locked with the stopper portion 46 formed on the step 1 side, so that the step 1 is at the lower end or in the vicinity thereof. At this point, the movement of the step 1 to the rising side is restricted, and the spring 36 is restored to the tension side by the same unlocking pin 45 as in the previous embodiment, and the claw portion 41c is locked. If it cancels | releases and the operation | movement to the raising side of the step 1 is permitted, the effect similar to previous embodiment can be show | played.

  When the step reaches the lower end or in the vicinity thereof, locking means for locking the step to the frame and restricting the upward movement of the step, and in the process of restoring the energy storage means to the pull side, As long as it is a traveling tool provided with unlocking means for releasing the locking and allowing the stepping platform to move upward, it can be applied to one having a different appearance shape or other functions. it can.

Side surface schematic diagram which shows the traveling tool which concerns on embodiment of this invention. Plane schematic diagram showing the traveling tool The enlarged schematic diagram which shows the vicinity in which the locking means and unlocking means in the traveling tool were arrange | positioned Front schematic diagram showing steering means in the traveling tool FIG. 4 is a schematic diagram showing a brake unit and an operation lever in the traveling tool, and showing a state in which the brake unit is brought into contact with a rear wheel. It is a schematic diagram which shows the brake means and operation lever in the traveling tool, and is a view showing a state in which the brake means is separated from the rear wheel Side surface schematic diagram showing the stepping action process for the step on the same traveling tool Side surface schematic diagram showing the stepping action process for the step on the same traveling tool Side surface schematic diagram showing the stepping action process for the step on the same traveling tool Side surface schematic diagram showing the stepping action process for the step on the same traveling tool Side surface schematic diagram showing the stepping action process for the step on the same traveling tool Side surface schematic diagram which shows the traveling tool which concerns on other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Step 2 1st frame 3 2nd frame 4 Swing pin 5 One-way clutch 6 Energy storage means 7 Shoes 8 Support metal fitting 9 Swing shaft 10 Rear wheel 11 Front wheel 12 Bush 13 Movable bush 14, 18 Chain 15, 16, 17, 21 sprocket 19 fixing tool 22 housing 23 disc spring 24 presser plate 25 adjusting nut 26 steering means 27 connecting shaft 28 upper frame 29 lower frame 30 arm pin 31 fixed washer 32 pin 33 spring 34 ball 35 rotating bracket 36 spring 37 rod 38 support member 39 Pin-shaped member 40 Locking means 41 Oscillating member 41a Arm part 41b Locking part 41c Claw part 42 Oscillating shaft 43 Stopper pin 44 Return spring 45 Unlocking pin (unlocking means)
46 Stopper 47 Brake unit 48a Collar 48b Connection shaft 49 Wire 50 Operation lever 51 Grip bar 52 Spring 53 Holding unit

Claims (2)

A frame having front and rear wheels;
A step that can be raised or lowered relative to the frame and on which a rider's feet can be placed;
It consists of a spring that is compressed in the process of lowering the step and is restored to the pull side when the step reaches the lower end or its vicinity, and transmits the restoring force to the rear wheel to rotate the rear wheel. Energy storage means for advancing the step and the frame by
A transmission mechanism for transmitting and rotating the lowering operation of the stepping platform to the rear wheel via the energy storage means to advance the stepping step and to block the lifting operation of the stepping step from being transmitted to the rear wheel; ,
In a running tool that is mounted on both feet of the rider and can be run by alternately stepping on the stepping platform,
When the step reaches the lower end or in the vicinity thereof, locking means for locking the step to the frame and restricting the operation of the step toward the rising side;
Unlocking means for releasing the locking of the locking means in the process in which the energy storage means is restored to the pulling side, and allowing the stepping platform to move upward;
A traveling tool comprising:   The unlocking means includes an unlocking pin that is displaced along with compression and restoration of the energy storage means, and the locking means includes a claw portion that can be engaged with a stopper portion formed on the stepping platform, and the lock The oscillating member comprises an oscillating member having an arm part that can come into contact with the unlocking pin in the process of displacement of the releasing pin, and the oscillating member oscillates by the abutting member coming into contact with the arm part. The traveling tool according to claim 1, wherein the claw part is separated from the stopper part to release the locking.

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