JP2019051063A - Rotary device - Google Patents

Abstract

To provide a rotary device to which initial spin can be given without using cord, etc. and whose initial speed can be adjusted.SOLUTION: A rotary device comprises a rotary body 11 comprising a rotary shaft 12 protruding on both sides, a supporting part 20 rotatably supporting the rotary shaft 12, and a rail part 23 in which a circumferential groove 24 facing both ends of the rotary shaft 12 is formed. The rotary shaft 12 can come into contact with an inside surface 24a of the circumferential groove 24 by tilting in the circumferential groove 24, and the supporting part 20 can rotate in a circumferential direction of the circumferential groove 24.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a rotating device that is held and rotated by a palm.

  Conventionally, there are toys or training devices sold under names such as “powerball”, “wristball”, and “dynaby” as rotating devices that are gripped with a palm and rotated (see, for example, Patent Document 1). This type of rotating device includes a spherical case and a rotor built in the case. A circumferential groove is formed inside the case at a position corresponding to the equator, and the rotation shaft of the rotor is supported by the circumferential groove.

  When such a rotating device is used, an initial rotation is given to the rotor by first pulling a string wound around the rotor. Thereafter, when the wrist is turned with good timing while holding the rotating device, the rotating shaft comes into contact with the side surface of the circumferential groove and rolls, and the rotor can be rotated at high speed.

Utility Model Registration No. 3138793

  However, in the conventional rotating device as described above, a string has to be wound to give an initial rotation, and the work is troublesome. Further, although it is possible to give initial rotation by directly rubbing the rotor without using a string, there is a problem that initial speed tends to be insufficient.

  Therefore, an object of the present invention is to provide a rotating device that can give an initial rotation without using a string or the like and can adjust an initial speed.

  The present invention has been made to solve the above-described problems, and is characterized by the following.

  The invention according to claim 1 is a rotating body provided with a rotating shaft projecting on both sides, a support portion that rotatably supports the rotating shaft, a rail portion that forms a circumferential groove facing both ends of the rotating shaft, The rotating shaft is capable of contacting the inner surface of the circumferential groove by tilting in the circumferential groove, and the support portion is rotatable in the circumferential direction of the circumferential groove. To do.

  The invention according to claim 2 is characterized in that, in addition to the feature of the invention according to claim 1, the support portion and the rail portion are exposed to be held from the outside.

  The invention according to claim 3 is characterized in that, in addition to the features of the invention according to claim 1 or 2, the support portion is formed in a spherical shape so as to cover the periphery of the rotating body, and the rail portion is It is formed in an annular shape so as to cover the outer periphery of the support portion.

  According to a fourth aspect of the present invention, in addition to the feature of the first aspect of the present invention, a lock mechanism that can be locked so that the support portion cannot rotate in the circumferential direction of the circumferential groove. It is characterized by providing.

  According to a fifth aspect of the present invention, in addition to the feature of the first aspect of the present invention, the support portion includes a one-way mechanism that allows the rotation shaft to rotate only in one direction. It is characterized by that.

  According to a sixth aspect of the invention, in addition to the features of the first aspect of the invention described in any of the first to fifth aspects, the rail portion includes a friction part provided so as to be separable from the rotating shaft. And when the friction part comes into contact with the rotating shaft, the rotating force of the rotating shaft is transmitted to the rail portion.

  The invention according to claim 1 is as described above, and includes a support portion that rotatably supports the rotating shaft, and the support portion is rotatable in the circumferential direction of the circumferential groove. According to such a structure, a rotating shaft can be rotated in the circumferential direction of a circumferential groove by performing operation which rotates a support part in the circumferential direction of a circumferential groove. At this time, if the rotation shaft is tilted and brought into contact with the inner surface of the circumferential groove, the rotation shaft acts to roll on the circumferential groove, so that the rotating body can be rotated. Since the outer diameter of the rotating shaft is sufficiently smaller than the diameter of the circumferential groove, the rotating shaft (rotating body) can be rotated many times by rotating the support part only a little (for example, about 1/4) in the circumferential direction of the circumferential groove. It can be rotated (for example, 10 rotations or more). In other words, even when the support portion is slowly rotated in the circumferential direction of the circumferential groove, the rotating shaft (rotating body) can be rotated at a high speed. Thus, by rotating the support portion in the circumferential direction of the circumferential groove, sufficient initial rotation can be given to the rotating body without using a string or the like. And the initial speed of a rotary body can be adjusted by adjusting the quantity and speed which rotate a support part.

  The invention according to claim 2 is as described above, and the support portion and the rail portion are exposed to be held from the outside. According to such a structure, a user can start a rotary body by grasping a support part and a rail part, respectively, and making it rotate relatively. That is, it is possible to provide a rotating device with good operability with respect to the provision of the initial rotation as described above.

  The invention according to claim 3 is as described above, the support portion is formed in a spherical shape so as to cover the periphery of the rotating body, and the rail portion is formed in an annular shape so as to cover the outer periphery of the support portion. Yes. According to such a configuration, the upper and lower sides of the support portion can be held with one hand, and the side portion of the rail portion can be held with the other hand. That is, since the support portion and the rail portion can be grasped without causing both hands to interfere, it is possible to provide a rotating device with good operability regarding the provision of the initial rotation as described above.

  The invention according to claim 4 is as described above, and includes a lock mechanism that can be locked so that the support portion cannot rotate in the circumferential direction of the circumferential groove. According to such a configuration, the support portion can be locked when the rotating body has a sufficient momentum, and the inclination of the rotation shaft with respect to the rail portion can be fixed. If the inclination of the rotating shaft is fixed, the support portion and the rotating body rotate constantly inside the rail portion, so that it is possible to play like a so-called “Earth Sesame”.

  The invention according to claim 5 is as described above, and the support portion includes a one-way mechanism that allows the rotation shaft to rotate only in one direction. According to such a structure, a rotary body can be started by performing operation which rotates a support part centering | focusing on a rotating shaft. That is, when an operation of rotating the support portion is performed, only rotation in one direction is transmitted to the rotating body, so that it is possible to start by applying a rotational force to the rotating body.

  The invention according to claim 6 is as described above, and is configured such that when the friction part contacts the rotating shaft, the rotational force of the rotating shaft is transmitted to the rail portion. According to such a structure, a rail part can be integrally rotated with a rotary body by making friction parts contact a rotating shaft. If the rail portion rotates integrally with the rotating body, the rotating device rotates integrally, so that it is possible to play like a general “top”.

It is an external appearance perspective view of a rotary instrument. It is a disassembled perspective view of a rotary instrument. It is the disassembled perspective view which looked at the rotation implement from another direction. It is a disassembled perspective view of a support part. It is the disassembled perspective view which looked at the support part from another direction. It is (a) sectional drawing of a rotation implement, (b) A section expanded sectional view. It is a front view of a rotation implement, Comprising: (a) The figure before locking a support part, (b) The figure after locking a support part. It is sectional drawing of a one-way mechanism, Comprising: (a) The figure of the state in which rotation was permitted, (b) The figure of the state in which rotation was stopped. It is (a) sectional drawing in the state where the friction parts are not contacting the rotating shaft, (b) B section expanded sectional drawing. It is (a) sectional drawing of the state which the friction parts contacted the rotating shaft, (b) C section enlarged sectional drawing. It is a front view of a rotary instrument, Comprising: It is a figure of the state which locked the support part diagonally. It is a figure which shows a mode that it tries to start a rotary body by rotating a support part and a rail part relatively. It is a figure which shows a mode that it tries to start a rotary body by rotating the whole rotary instrument.

Embodiments of the present invention will be described with reference to the drawings.
The rotating device 10 according to the present embodiment is used by grasping with a palm, and has a mechanism in which the number of rotations of the rotating body 11 gradually increases depending on the timing of rotating the wrist. As illustrated in FIGS. 1 to 3, the rotating device 10 includes a rotating body 11, a support portion 20, and a rail portion 23.

  The rotating body 11 is a member that includes a rotating shaft 12 at the center of gravity and rotates around the rotating shaft 12. The rotating body 11 is a member having a large mass and a large moment of inertia. That is, the rotating body 11 requires a large torque to give the initial rotation, but is formed so that the speed change during the rotation becomes gentle.

  As shown in FIGS. 4 and 5, the rotating shaft 12 of the rotating body 11 protrudes on both sides of the rotating body 11 and is rotatably supported by a support portion 20 described later. A gear 13 that meshes with a one-way mechanism 14 described later is attached to the rotary shaft 12. The rotating shaft 12 and the gear 13 are fixed to the rotating body 11 and rotate integrally with the rotating body 11.

  The support part 20 is for supporting the rotary body 11 (rotary shaft 12) rotatably. As shown in FIGS. 4 and 5, the support portion 20 includes a pair of divided bodies 21, a spacer 22, a one-way mechanism 14, and a bearing 17.

  The pair of divided bodies 21 are hemispherical dome-shaped members as shown in FIGS. 4 and 5, respectively. The pair of divided bodies 21 are formed in a spherical shape covering the periphery of the rotating body 11 by being joined to each other.

  The divided body 21 includes a ring-shaped portion 21b serving as a joining portion of the pair of divided bodies 21, and an arch-shaped portion 21c protruding in a semicircular arc shape from the ring-shaped portion 21b. A plurality of arch-shaped portions 21c are provided so as to intersect in the vicinity of the apex, whereby the periphery of the rotating body 11 is covered with the arch-shaped portion 21c.

  The ring-shaped portion 21b is formed with an engagement recess 21a for engaging a lock part 27 (engagement projection 27a) described later. The engagement concave portion 21a is a groove formed on the surface of the ring-shaped portion 21b, and extends in the diameter direction of the ring-shaped portion 21b in order to slide and guide an engagement convex portion 27a described later.

  The spacer 22 is a plate-like member that is sandwiched between the joint surfaces when the pair of divided bodies 21 are combined. As shown in FIGS. 2 and 3, the spacer 22 protrudes in the outer peripheral direction from the divided body 21, and the protruding portion is a substantially circular flange. As shown in FIG. 8, this flange is inserted into a circumferential groove 24 described later. This flange is formed to be thinner than the diameter of the rotating shaft 12, thereby preventing the contact between the rotating shaft 12 and the circumferential groove 24.

  The one-way mechanism 14 is a mechanism that allows the rotary shaft 12 to rotate only in one direction. As shown in FIGS. 4 and 5, the one-way mechanism 14 includes a gear box 15 that is fixed inside the divided body 21, and a one-way gear 16 that is housed inside the gear box 15.

  As shown in FIG. 8, a gear 13 fixed to the rotary shaft 12 and a one-way gear 16 that meshes with the gear 13 are accommodated in the gear box 15. The inner peripheral surface of the gear box 15 facing the one-way gear 16 is formed asymmetrically. Specifically, one peripheral surface is smoothly curved to form a rolling surface 15a, and the other peripheral surface is linearly formed and has corner portions 15b.

  For this reason, when the rotating shaft 12 rotates in a direction in which rotation is permitted (in this embodiment, when the rotating shaft 12 rotates clockwise as shown in FIG. 8A), the one-way gear 16 is a rolling surface. It rolls in contact with 15a and does not hinder the rotation of the rotating shaft 12.

  On the other hand, when the rotation shaft 12 rotates in a direction in which rotation is prohibited (in this embodiment, when the rotation shaft 12 rotates counterclockwise as shown in FIG. 8B), the one-way gear 16 has the corner portion 15b. The rotation shaft 12 is prevented from rotating.

  The bearing 17 is for smoothly rotating the rotary shaft 12, and is fixed inside the divided body 21. The bearing 17 has an insertion hole for inserting the rotary shaft 12. By inserting the rotary shaft 12 into the bearing 17, smooth rotation of the rotary shaft 12 is realized.

  The rail portion 23 is a member formed in an annular shape so as to cover the outer periphery of the support portion 20. Specifically, as shown in FIG. 1, an annular rail portion 23 is provided on the outer periphery of the spherical support portion 20, and the outer periphery of the support portion 20 is entirely the rail portion 23. Not covered with. For this reason, each of the support part 20 and the rail part 23 is exposed so that holding | maintenance is possible from the exterior (refer FIG. 12). A circumferential groove 24 that faces both ends of the rotating shaft 12 is formed on the inner circumferential surface of the rail portion 23.

  As shown in FIGS. 2 and 3, the rail portion 23 includes a pair of groove forming members 25, a pair of lock guide members 26, a pair of lock parts 27, and a friction part 28.

  The pair of groove forming members 25 are ring-shaped members that can be bonded to each other, and the circumferential grooves 24 are formed between the bonding surfaces. The circumferential groove 24 is a circular groove having an inner circumferential side opened, and rotatably holds both ends of the rotating shaft 12. Specifically, the length of the rotating shaft 12 is set longer than the diameter of the opening edge of the circumferential groove 24 and shorter than the diameter of the innermost portion of the circumferential groove 24. For this reason, the rotating shaft 12 is in a state of being installed in the diameter direction of the circumferential groove 24. With this configuration, the rotating shaft 12 (the rotating body 11) can rotate in the circumferential direction of the circumferential groove 24 around the vicinity of the middle of the rotating shaft 12 in the axial direction.

  The opening width of the circumferential groove 24 (the vertical width in FIG. 6) is set larger than the diameter of the rotating shaft 12. For this reason, the rotating shaft 12 can be tilted inside the circumferential groove 24. When the rotating shaft 12 is tilted in the circumferential groove 24, the outer peripheral surface of the rotating shaft 12 contacts the inner side surface 24 a of the circumferential groove 24 as shown in FIG. 6. When the support portion 20 is rotated in the circumferential direction of the circumferential groove 24 in a state where the outer peripheral surface of the rotating shaft 12 is in contact with the inner side surface 24a of the circumferential groove 24 as described above (FIG. 6A, the upper arrow), the rotation is performed. The shaft 12 rolls on the inner side surface 24a of the circumferential groove 24 to rotate the shaft (the arrow on the left in FIG. 6A).

  That is, in the present embodiment, the support portion 20 supports the rotary shaft 12, and the support portion 20 can rotate integrally with the rotating body 11 in the circumferential direction of the circumferential groove 24. For this reason, by rotating the support portion 20 in the circumferential direction of the circumferential groove 24 in a state where the outer peripheral surface of the rotating shaft 12 is in contact with the inner side surface 24 a of the circumferential groove 24, the rotational force in the axial direction is applied to the rotating shaft 12. Can be granted.

  The groove forming member 25 includes a lock guide groove 25a for guiding sliding of a lock part 27 described later (see FIGS. 2 and 3). The lock guide groove 25 a is a groove for guiding the sliding of the lock part 27, and is provided at two positions on the left and right sides for guiding the two lock parts 27. The lock part 27 attached to the lock guide groove 25 a is slidable in the diameter direction of the groove forming member 25.

  The groove forming member 25 includes a pin 25b that protrudes from the front and back surfaces. The pin 25b is a protrusion for guiding the rotation of a lock guide member 26 described later. The pin 25b is inserted into a pin guide hole 26b described later.

  In addition, one of the groove forming members 25 is provided with a protruding shaft 25c that protrudes in the outer peripheral direction. The projecting shaft 25 c is formed on a line passing through the center of the rotating body 11 and can be used as a shaft when the rotating device 10 is used as a “frame”. The protruding shaft 25c is formed coaxially with a protruding shaft portion 28b described later.

  The pair of groove forming members 25 includes a friction guide groove 25d for guiding sliding of a friction part 28 described later. The friction part 28 attached to the friction guide groove 25d is slidable in the diameter direction of the groove forming member 25.

  The pair of lock guide members 26 are ring-shaped members provided so as to sandwich the above-described groove forming member 25 from the outside. The pair of lock guide members 26 are formed with a lock parts guide hole 26a and a pin guide hole 26b.

  The lock part guide hole 26a is a long hole in which a guide projection 27b of a lock part 27 described later is slidably engaged. The width of the lock part guide hole 26a is formed substantially equal to the diameter of the guide protrusion 27b, and is formed so that the guide protrusion 27b can be slid and guided in the longitudinal direction. The extending direction of the lock part guide hole 26 a is set in a direction oblique to the circumferential direction of the lock guide member 26 and the diameter direction of the lock guide member 26.

  The pin guide hole 26b is a long hole in which the pin 25b of the groove forming member 25 is slidably engaged. The width of the pin guide hole 26b is substantially equal to the diameter of the pin 25b, and is formed so that the pin 25b can be slidably guided in the longitudinal direction. The extending direction of the pin guide hole 26b is set to be substantially equal to the circumferential direction of the lock guide member 26.

  Thus, by providing the lock part guide hole 26a and the pin guide hole 26b, the pair of lock guide members 26 can be displaced within a predetermined range in the circumferential direction with respect to the groove forming member 25 and the lock part 27. .

  The pair of lock parts 27 constitutes a lock mechanism that locks the support portion 20 so as not to rotate in the circumferential direction of the circumferential groove 24. The lock part 27 is slidably attached to the lock guide groove 25 a of the groove forming member 25. The pair of lock parts 27 are arranged so as to face each other, and are slidable in directions approaching each other.

  The lock part 27 includes an engagement convex portion 27 a that can be engaged with the engagement concave portion 21 a of the support portion 20. The engaging convex part 27a is formed at the tip of the lock part 27, and engages with the engaging concave part 21a when the lock part 27 is pushed in the center direction. When the engaging convex portion 27a engages with the engaging concave portion 21a, the support portion 20 cannot rotate with respect to the lock part 27 (rail portion 23). On the other hand, when the lock part 27 is pulled out in the outer circumferential direction, the engagement between the engagement convex part 27a and the engagement concave part 21a is released, so that the support part 20 can rotate with respect to the lock part 27 (rail part 23). It becomes a state.

  The lock part 27 includes an operation protrusion 27c that protrudes in the outer peripheral direction. When the user wants to lock the lock part 27, the lock part 27 can be easily moved in the center direction by performing an operation of pushing in the operation protrusion 27c.

  The lock part 27 includes a guide protrusion 27b that slidably engages with the lock part guide hole 26a described above. Since the guide protrusion 27b is engaged with the lock part guide hole 26a, when the lock guide member 26 is rotated, the rotational force is transmitted to the lock part 27 via the guide protrusion 27b, and the lock part 27 is It is converted into a force that moves in the direction. In other words, when the user wants to release the lock by the lock part 27, the lock part 27 can be pulled out in the outer circumferential direction by performing an operation of rotating the lock guide member 26.

  The friction part 28 is for switching whether to transmit the rotational force of the rotary shaft 12 to the rail portion 23. The friction part 28 is slidably attached to the friction guide groove 25d of the groove forming member 25. Specifically, the friction part 28 includes a leg portion 28a that engages with the friction guide groove 25d. The leg portion 28a is guided so as to be detachable from the rotary shaft 12. ing.

  The friction part 28 includes a protruding shaft portion 28b protruding in the outer peripheral direction. When the user wants to transmit the rotational force of the rotating shaft 12 to the rail portion 23, the friction part 28 can be easily moved in the center direction by performing an operation of pushing the protruding shaft portion 28b. In addition, when the user does not want to transmit the rotational force of the rotary shaft 12 to the rail portion 23, the friction part 28 can be easily moved in the outer peripheral direction by performing an operation of pulling out the protruding shaft portion 28b. .

  As shown in FIGS. 9 and 10, an inner protrusion 28 c is provided at the center of the friction part 28. The inner projecting portion 28c is provided so as to face the end portion of the rotating shaft 12, and includes a contact concave portion 28d at the tip portion. By sliding the friction part 28, the contact recess 28d is not in contact with the end of the rotating shaft 12 (see FIG. 9), and the contact recess 28d is in contact with the end of the rotating shaft 12. (See FIG. 10). When the contact recess 28 d comes into contact with the end of the rotating shaft 12, the rotational force of the rotating shaft 12 is transmitted to the rail portion 23.

  When using the rotary tool 10 described above, it is necessary to first apply an initial rotation to the rotating body 11. In the present embodiment, two operation methods are provided as means for giving the rotating body 11 an initial rotation. Although two operation methods are described here, the means for giving the initial rotation is not limited to the following, and the initial rotation is applied to the rotating body 11 using a string, a rack belt, a spring, or the like as in the prior art. You may make it give.

  As shown in FIG. 12, the first operation method for giving the initial rotation is to hold the support portion 20 with one hand and the rail portion 23 with the other hand, thereby supporting the support portion 20 and the rail portion 23. It is a method of rotating the relative. For example, in a state where the support part 20 is fixed, the rail part 23 is operated so as to rotate around the support part 20. At this time, the support part 20 is inclined with respect to the rail part 23, and the outer peripheral part of the rotating shaft 12 is made to contact the inner side surface 24a of the circumferential groove 24 (state of FIG. 6). The rotating shaft 12 that contacts the inner side surface 24a of the circumferential groove 24 rolls on the inner side surface 24a of the circumferential groove 24 to rotate. Therefore, the rotating shaft 12 (rotating body 11) can be rotated at high speed only by slowly rotating the support portion 20 in the circumferential direction of the circumferential groove 24. Thereby, sufficient initial rotation can be given to the rotating body 11.

  Further, the second operation method for giving the initial rotation is a method of picking up the protruding shaft 25c and the like with the fingertip and rotating the entire rotating device 10 as shown in FIG. When the entire rotating device 10 is thus rotated, only the rotation in one direction is transmitted to the rotating body 11 by the one-way mechanism 14, and the rotation in the other direction is not transmitted to the rotating body 11. Thereby, initial rotation can be given to the rotating body 11.

  When the initial rotation is given to the rotating body 11 as described above, the rail portion 23 is grasped with a palm and rotated while twisting the wrist, as in the conventional rotating device 10. If the wrist twist angle and the rotation timing are appropriate, the rotational momentum of the rotating body 11 increases and the rotation can be stabilized.

  And if rotation becomes stable, you may fix the support part 20 with respect to the rail part 23 using a locking mechanism. That is, as shown in FIG. 7A, when the lock part 27 is operated so as to be pushed from both sides to the center, the engaging convex portion 27a engages with the engaging concave portion 21a of the supporting portion 20, and the supporting portion 20 is It will be in the state which cannot rotate with respect to the rail part 23 (circumferential groove 24). When the lock part 27 is pushed in, the guide protrusion 27b pushes the lock part guide hole 26a. Accordingly, the lock guide member 26 rotates in the circumferential direction by a predetermined angle with respect to the groove forming member 25. The rotational movement at this time is guided by the engagement between the pin 25b and the pin guide hole 26b.

  Thus, when the support part 20 is fixed with respect to the rail part 23, since the rail part 23 and the support part 20 are fixed in a horizontal state, the rotating shaft 12 becomes non-contact with respect to the circumferential groove 24. Therefore, the rotating shaft 12 can rotate without interfering with the circumferential groove 24. And since the rotating body 11 rotates independently of the rail part 23 in the state where the angle of the rotating shaft 12 with respect to the rail part 23 is fixed, the way of playing like a so-called “earth sesame” becomes possible. Specifically, when the rotating tool 10 is stood by grounding the projecting shaft 25c and the like, the gyro effect of the rotating body 11 that rotates at a high speed inside the rail portion 23 although the rail portion 23 itself hardly rotates, The rotating device 10 can be erected. At this time, even if the rail portion 23 is grasped or touched, the number of rotations does not decrease, so that it is possible to play differently from ordinary “top”.

  In the locking mechanism according to the present embodiment, the engagement recess 21a is provided at a predetermined interval in the circumferential direction of the support portion 20, whereby the fixed angle of the rotating shaft 12 is determined. The arrangement interval of the engaging recess 21a is such that the rotating shaft 12 can be fixed every 45 degrees. Specifically, as shown in FIG. 7B, the rotating shaft 12 can be fixed so as to be coaxial with the protruding shaft 25c and the protruding shaft portion 28b. As shown in FIG. The rotating shaft 12 is fixed in a state where it is inclined with respect to the protruding shaft 25c and the protruding shaft portion 28b (in this embodiment, a state that forms an angle of 45 degrees with the rotating shaft 12 and the protruding shaft portion 25b or the protruding shaft portion 28b). It is also possible. As described above, if the fixed angle of the rotating shaft 12 can be changed, the operation of the rotating device 10 can be changed in accordance with the fixed angle of the rotating shaft 12.

  Further, the friction part 28 may be further brought into contact with the rotary shaft 12 by further operating the friction part 28 from a state in which the support part 20 is fixed to the rail part 23. That is, as shown in FIG. 10, by performing an operation of pushing the friction part 28, the rotating shaft 12 is engaged with the contact recess 28 d so that the rotational force of the rotating shaft 12 is transmitted to the rail portion 23. Good. If it does in this way, the rail part 23 and the rotary body 11 will rotate integrally. That is, since the entire rotating device 10 rotates integrally, it is possible to play like an ordinary “top”.

  When the friction part 28 is separated from the rotary shaft 12, if the protruding shaft portion 28b is picked and pulled, the contact between the contact recess 28d and the rotary shaft 12 is released as shown in FIG.

  When the lock mechanism is released, the lock guide member 26 is rotated with respect to the groove forming member 25 as shown in FIG. By such an operation, the guide protrusion 27b is pushed out along the lock part guide hole 26a in the outer peripheral direction, and the lock part 27 slides in the outer peripheral direction. When the lock part 27 moves to the outside, the engagement between the engagement convex portion 27a and the engagement concave portion 21a is released, and the support portion 20 can rotate with respect to the rail portion 23 in the circumferential direction.

  As described above, according to the present embodiment, the support portion 20 that rotatably supports the rotary shaft 12 is provided, and the support portion 20 is rotatable in the circumferential direction of the circumferential groove 24. Therefore, the rotation shaft 12 can be turned in the circumferential direction of the circumferential groove 24 by performing an operation of rotating the support portion 20 in the circumferential direction of the circumferential groove 24. At this time, if the rotary shaft 12 is tilted and brought into contact with the inner surface 24a of the circumferential groove 24, the rotary shaft 12 acts to roll on the circumferential groove 24, so that the rotating body 11 can be rotated. it can. Since the outer diameter of the rotating shaft 12 is sufficiently smaller than the diameter of the circumferential groove 24, the rotating shaft 12 (rotating body) can be obtained by rotating the support portion 20 slightly in the circumferential direction of the circumferential groove 24 (for example, about 1/4). 11) can be rotated many times (for example, 10 rotations or more). In other words, even when the support portion 20 is slowly rotated in the circumferential direction of the circumferential groove 24, the rotating shaft 12 (rotating body 11) can be rotated at a high speed. Thus, by rotating the support portion 20 in the circumferential direction of the circumferential groove 24, sufficient initial rotation can be given to the rotating body 11 without using a string or the like. Moreover, the initial speed of the rotating body 11 can be adjusted by adjusting the amount and speed of rotating the support portion 20.

  Moreover, the support part 20 and the rail part 23 are exposed so that the holding | maintenance from the outside is possible. For this reason, as shown in FIG. 12, the user can start the rotating body 11 by gripping the support portion 20 and the rail portion 23 and rotating them relative to each other. That is, with respect to the provision of the initial rotation as described above, it is possible to provide the rotating instrument 10 with good operability.

  The support portion 20 is formed in a spherical shape so as to cover the periphery of the rotating body 11, and the rail portion 23 is formed in an annular shape so as to cover the outer periphery of the support portion 20. According to such a configuration, as shown in FIG. 12, the upper and lower sides of the support portion 20 can be held with one hand, and the side portion of the rail portion 23 can be held with the other hand. That is, since the support part 20 and the rail part 23 can be grasped without interfering both hands, the rotary instrument 10 with good operability can be provided with respect to the provision of the initial rotation as described above.

  Further, a lock mechanism that can be locked so that the support portion 20 cannot rotate in the circumferential direction of the circumferential groove 24 is provided. Therefore, the support portion 20 can be locked when the rotating body 11 has a sufficient momentum, and the inclination of the rotating shaft 12 with respect to the rail portion 23 can be fixed. When the inclination of the rotating shaft 12 is fixed, the support portion 20 and the rotating body 11 are constantly rotated inside the rail portion 23, so that a so-called “earth sesame” manner of play is possible.

  Moreover, the support part 20 is provided with the one-way mechanism 14 which enables the rotating shaft 12 to rotate only to one direction. Therefore, the rotating body 11 can be started by performing an operation of rotating the support portion 20 around the rotating shaft 12. That is, when the operation of rotating the support portion 20 is performed, only rotation in one direction is transmitted to the rotating body 11, so that the rotating body 11 can be started by applying a rotational force.

  Further, when the friction part 28 comes into contact with the rotary shaft 12, the rotational force of the rotary shaft 12 is transmitted to the rail portion 23. Therefore, the rail part 23 can be rotated integrally with the rotating body 11 by bringing the friction part 28 into contact with the rotating shaft 12. If the rail portion 23 rotates integrally with the rotating body 11, the rotating device 10 rotates integrally, so that it is possible to play like a general “top”.

DESCRIPTION OF SYMBOLS 10 Rotating instrument 11 Rotating body 12 Rotating shaft 13 Gear 14 One-way mechanism 15 Gear box 15a Rolling surface 15b Corner portion 16 One-way gear 17 Bearing 20 Support portion 21 Split body 21a Engaging recess 21b Ring-shaped portion 21c Arch-shaped portion 22 Spacer 23 Rail portion 24 Circumferential groove 24a Inner side surface 25 Groove forming member 25a Lock guide groove 25b Pin 25c Projection shaft 25d Friction guide groove 26 Lock guide member 26a Lock part guide hole 26b Pin guide hole 27 Lock part 27a Engaging protrusion 27b Guide protrusion 27c Operation projection 28 Friction parts 28a Leg 28b Projection shaft 28c Inner projection 28d Contact recess

Claims (6)

A rotating body with rotating shafts protruding on both sides;
A support portion for rotatably supporting the rotation shaft;
A rail portion formed with a circumferential groove facing both ends of the rotating shaft;
With
The rotating shaft is capable of contacting the inner surface of the circumferential groove by tilting in the circumferential groove,
The rotating device according to claim 1, wherein the support portion is rotatable in a circumferential direction of the circumferential groove.   The rotating device according to claim 1, wherein the support portion and the rail portion are exposed to be held from the outside. The support portion is formed in a spherical shape so as to cover the periphery of the rotating body,
The rotating device according to claim 1, wherein the rail portion is formed in an annular shape so as to cover an outer periphery of the support portion.   The rotating device according to claim 1, further comprising a lock mechanism that can be locked so that the support portion cannot rotate in the circumferential direction of the circumferential groove.   The said support part is equipped with the one-way mechanism which enables the said rotating shaft to rotate only to one direction, The rotary instrument of any one of Claims 1-4 characterized by the above-mentioned. The rail portion includes a friction part provided to be separable from the rotating shaft,
The structure according to any one of claims 1 to 5, wherein when the friction part comes into contact with the rotating shaft, the rotational force of the rotating shaft is transmitted to the rail portion. The described rotating device.

Images