JP2011064331A - Rotating mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotating mechanism capable of providing a click feeling in a small component, and capable of providing a smooth feeling of operation to a user when rotating. <P>SOLUTION: The rotating mechanism 30 includes a first magnet member 22 having at least an N pole and an S pole disposed on a circumference, a second magnet member 26 provided in a position facing the first magnet member 22 and having at least one of an N pole or an S pole, and a holding member holding the first magnet member 22 and the second magnet member 26 so as to mutually relatively rotate. A hysteresis material 31 is disposed on an end face wherein the first magnet member 22 and the second magnet member 26 face each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a rotation mechanism, and more particularly to a rotation mechanism that is applied to small parts such as a hinge mechanism, a switch, a volume, a lens, a zoom lens, and a lens filter to give a click feeling.

  An example in which a conventional rotation mechanism for performing a click stop is applied to a turntable of a display is described in, for example, Japanese Patent Application Laid-Open No. 2003-157016. FIG. 8 is a view showing a rotating portion mounting plate 71 and a fixed portion mounting plate 72 provided at a position facing the rotating portion mounting plate 71 constituting the turntable described in the publication. As shown in FIG. 8 (B), the rotating portion mounting plate 71 and the fixed portion mounting plate 72 are each provided with openings, and magnets composed of N poles and S poles as rotating fixing parts in the respective openings. When 81 is embedded and magnets attract each other at corresponding positions (FIG. 8A), a click stop is performed and the orientation of the display is determined.

Japanese Unexamined Patent Publication No. 2003-157016 (paragraph numbers 0028, 0029, FIG. 7, FIG. 8, etc.)

  A conventional rotation mechanism for performing a click stop has been configured as described above. Only an application example to a large-sized device such as a display is described, and an example in which these are applied to a small component has not been considered at all. Further, since magnets magnetized with a single pole are used, there is a problem that a very large click feeling cannot be obtained.

  In addition, since the conventional rotation mechanism that provides a click feeling uses physical sliding resistance, the click feeling decreases with the progress of wear, and the mechanism for achieving the click feeling is complicated. There was a problem of becoming.

  The present invention has been made in view of the above problems, and provides a rotation mechanism that can obtain a clear click feeling and can give a smooth operation feeling to the user when rotating. Objective.

  The rotation mechanism according to the present invention is provided at a position facing the first magnet member, a first magnet member having at least N poles and S poles disposed on a circumference surrounding the rotation axis, and at least N poles and A second magnet member having one of the south poles, and a holding member that holds the first magnet member and the second magnet member so as to be relatively rotatable with each other, and is disposed on the first magnet member. The N pole and the S pole are disposed on the end face of the first disc extending so as to be orthogonal to the rotation axis, and the second magnet member has at least the N pole and the S pole, and is arranged on the second magnet member. The N pole and the S pole arranged at the end are arranged on the end face of the second disk facing the first disk, and the end faces of the first magnet member and the end face of the second magnet member are opposite to each other. A hysteresis material is arranged.

  Preferably, one of the first magnet member and the second magnet member is held by a fixed member, and the other of the first magnet member and the second magnet member is held by a rotating member.

  The number of poles of the first magnet member and the number of poles of the second magnet member are preferably the same.

  A rotation mechanism is configured by arranging a first magnet member having at least N and S poles arranged on the circumference and a second magnet member having at least one of N and S poles facing each other. Since the hysteresis material is disposed on the end face where the end face of the first magnet member and the end face of the second magnet member are opposed to each other, the user feels a click by the magnetic force between the first magnet member and the second magnet member. In addition, it is possible to give the user a smooth operational feeling when rotating.

It is a figure which shows an example of the magnetization pattern of the permanent magnet used for the rotating mechanism which concerns on one embodiment of this invention. It is a figure which shows the other example of the magnetization pattern of the permanent magnet used for the rotating mechanism which concerns on one embodiment of this invention. It is a perspective view which shows the rotation mechanism which concerns on one embodiment of this invention. It is a figure which shows the rotation mechanism which concerns on other embodiment of this invention. It is a figure which shows the rotation mechanism which concerns on other embodiment of this invention. It is a figure which shows the modification of embodiment shown in FIG. It is a figure which shows the rotation mechanism which concerns on other embodiment of this invention. It is a figure which shows the rotation mechanism which performs the conventional click stop.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are diagrams showing permanent magnets 11a and 11b magnetized in multiple poles (two or more poles) used in a rotating mechanism according to an embodiment of the present invention. FIG. 1 is a plan view of the permanent magnet 11a as viewed from the end face. Here, the permanent magnet 11a is magnetized into four poles. FIG. 2 is a perspective view of the permanent magnet 11b. Here, the permanent magnet 11b is magnetized to 12 poles. Note that FIG. 1 corresponds to an arrow view indicated by II in FIG. 2 (however, it is magnetized to four poles).

  Next, a rotation mechanism using the permanent magnets 11a and 11b shown in FIGS. 1 and 2 will be described. FIG. 3 is a side view showing the rotation mechanism 10 using the above-described permanent magnet 11a.

  Referring to FIG. 3, rotation mechanism 10 is provided at a position facing first magnet member 13 having two sets of N poles and S poles arranged on the circumference, and first magnet member 13, and at least The second magnet member 14 having any one of the N pole and the S pole, the first magnet member 13 and the second magnet member 14 are relative to each other with respect to the rotation axis 15 of the first magnet member 13. And a holding member (not shown) that is rotatably held. As long as the holding member has a configuration in which the first magnet member 13 and the second magnet member 14 face each other and surround the rotation axis 15 and can be rotatably held, any configuration can be adopted. By applying it to a fixed part such as a switch and a volume, a rotating part, etc., it is possible to provide a rotating mechanism that provides a click feeling.

  Here, both the first magnet member 13 and the second magnet member 14 may be held by the rotating member, or one of them may be held by the fixed member.

  Moreover, the pole number of the 1st magnet member 13 should just have an N pole and an S pole at least.

  As described above, according to this embodiment, since the second magnet member 14 is pulled by either the N pole or the S pole and rejected from the other, a large click feeling is obtained, and the life is long and long. It is possible to provide a rotation mechanism in which the click feeling given to the user over time does not decrease.

  Next, the rotation mechanism 16 using the permanent magnet 11b shown in FIG. 2 will be described. FIG. 4 is a perspective view showing the rotation mechanism 16. Referring to FIG. 4, the rotation mechanism 16 is opposed to the first magnet member 17 and the first magnet member 17 having six sets of N poles and S poles disposed on the outer peripheral surface of the cylindrical body surrounding the rotation axis 19. The second magnet member 18, which has at least one of the magnetic poles of N and S, and the first magnet member 17 and the second magnet member 18 are arranged along the rotation axis 19. And a holding member (not shown) that holds it relatively rotatably. Any holding member can be adopted as long as the first magnet member 17 and the second magnet member 18 can be rotatably held facing each other.

  Here, both the first magnet member 17 and the second magnet member 18 may be held by the rotating member, or either one may be held by the fixed member. Moreover, the pole number of a magnet member should just have an N pole and an S pole at least. In this case, the same effects as those of the previous embodiment can be obtained.

  Note that the magnet 11a shown in FIG. 1 is compared with the magnet 11b shown in FIG. 2, and the more the magnetized polarity is, the finer the rotation mechanism can be set.

  Next, another embodiment of the present invention will be described. In this embodiment, the two permanent magnets 11a shown in FIG. 1 are arranged so that the two end faces face each other. FIG. 5 is a view showing the rotation mechanism 20 in this case.

  Referring to FIG. 5, the rotation mechanism 20 includes a first disk 21 and a second disk disposed on the same rotation axis 28 as the first disk 21 and provided to face the first disk 21. 25. The first disc 21 includes a first magnet member 22 and a first yoke 23 for holding the first magnet member 22. The second disk 25 includes a second magnet member 26 and a second yoke 27 for holding the second magnet member 26.

  Each of the first magnet member 22 and the second magnet member 26 is composed of the permanent magnet 11a described above. Therefore, FIG. 1 corresponds to, for example, the arrow view of the portion indicated by arrow II in FIG.

  The first disk 21 and the second disk 25 configured as described above are arranged so as to face each other on the same rotation axis 28, and the respective disks 21, 25 are arranged via the respective yokes 23, 27. By applying it to a switch, volume, etc., it is possible to confirm that a predetermined operation has been performed reliably at the position where the N pole and S pole of the magnet face each other, and a larger click feeling than in the previous embodiment. Is obtained.

  In this case as well, the number of poles of the magnet member only needs to be at least N and S poles.

  Next, a modification of the rotating mechanism 20 shown in FIG. 5 will be described. FIG. 6 is a view showing a modification of the rotating mechanism 20 shown in FIG. Referring to FIG. 6, rotating mechanism 30 according to this embodiment provides semi-hard magnet 31 between first disk 21 and second disk 25 of rotating mechanism 20 shown in FIG. 5. In this case, the first magnet member 22, the semi-hard magnet 31, the second magnet member 26, and the semi-hard magnet 31 are slidably arranged.

  In this embodiment, for example, when the second magnet member 26 is rotated, a click feeling is given to the user by the magnetic force between the first magnet member 22 and the second magnet member 26, but the semi-hard magnet 31 is used. Therefore, immediately after the start of rotation, the magnetic force passing through the first magnet member 22 and the semi-hard magnet 31 is increased, and the magnetic force between the first magnet member 22 and the second magnet member 26, that is, the attractive force is decreased. For this reason, a smooth operation feeling is given to the user when rotating.

  The semi-hard magnet 31 may be held by either the first yoke 23 or the second yoke 27, or may be held by the first magnet member 22 or the second magnet member 26 without being held. Because there is no problem.

  Next, still another embodiment of the present invention will be described. FIG. 7 is a perspective view showing still another embodiment of the present invention. Referring to FIG. 7, the rotation mechanism 40 according to this embodiment includes a first magnet member 41 that surrounds the rotation axis 43, and a rotation axis 43 that is concentric with the first magnet member 41. And a second magnet member 42 provided on the outer peripheral surface of 41. Both the first magnet member 41 and the second magnet member 42 are composed of the permanent magnet 11b shown in FIG.

  In FIG. 7, illustration of the yokes provided in each of the first magnet member 41 and the second magnet member 42 is omitted, but the yoke in which the first magnet member 41 is disposed on the inner peripheral surface thereof. Are integrated with each other to form a first cylindrical body, and the second magnet member 42 is integrated with a yoke disposed on the outer peripheral surface thereof to form a second cylindrical body. In addition, a predetermined switch, volume or the like is connected to each yoke.

  In this embodiment, in the cylindrical magnet member, the first magnet member 41 and the second magnet member 42 are arranged so as to face each other in the rotation axis direction, and therefore, together with the effects described in the previous embodiment, the longitudinal direction There is an effect that it is possible to give a click feeling to the parts extending to the.

  In this case as well, the number of poles of the magnet member only needs to be at least N and S poles.

  In any of the above embodiments, the angle at which the click feeling is generated can be arbitrarily determined by changing the number of poles.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The rotation mechanism according to the present invention can be used advantageously as a rotation mechanism because a clear click feeling can be obtained and the click feeling does not decrease over a long period of time.

  10, 16, 20, 30, 40 Rotating mechanism, 11 Permanent magnet, 13, 17, 22, 41 First magnet member, 14, 18, 26, 42 Second magnet member, 21 First disc, 23 First yoke , 25 Second disc, 27 Second yoke, 15, 19, 28, 43 Rotating axis, 31 Semi-hard magnet.

Claims (3)

A first magnet member having at least a north pole and a south pole disposed on a circumference surrounding the rotation axis;
A second magnet member provided at a position facing the first magnet member and having at least one of an N pole and an S pole;
A holding member that holds the first magnet member and the second magnet member rotatably relative to each other;
The N pole and the S pole arranged on the first magnet member are arranged on an end surface of a first disc extending so as to be orthogonal to the rotation axis,
The second magnet member has at least an N pole and an S pole, and the N pole and the S pole disposed on the second magnet member are disposed on an end surface of the second disk facing the first disk. And
A rotation mechanism in which a hysteresis material is disposed on an end surface where the end surface of the first magnet member and the end surface of the second magnet member face each other. The one of the first magnet member and the second magnet member is held by a fixed member, and the other of the first magnet member and the second magnet member is held by a rotating member. The rotating mechanism described. The rotation mechanism according to claim 1 or 2, wherein the number of poles of the first magnet member and the number of poles of the second magnet member are the same.

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