JP4520889B2 - Click mechanism and dial using the click mechanism - Google Patents

Description

  The present invention relates to a click mechanism used for dialing, for example, communication equipment and AV equipment, and a dial using the click mechanism.

  Communication devices and AV devices that use a dial for adjustment require various operability for the dial.

  For example, in frequency adjustment of a wireless communication device or the like, it is better to turn the dial lightly and quickly because it is desired to greatly change the frequency until it approaches the vicinity of the target frequency. On the other hand, since it is desired to make fine adjustments when approaching the vicinity of the target frequency, the dial is moderately heavy and can be adjusted with high accuracy when it is not excessively rotated.

  Therefore, as one method for solving such contradictory operability problems, for example, (Patent Document 1) describes a “braking force adjusting mechanism for a rotary knob” filed by the present applicant.

  As shown in FIG. 1 (which will be described with reference to FIG. 1 of the present application since this adjustment mechanism partially matches that of the present application), this adjustment mechanism is a dial knob (hereinafter referred to as “knob”) attached to the shaft 11 of the rotating element body 10. The brake plate 14 is provided between the panel 12 and the panel 13, and the brake plate 14 includes a tongue-like contact portion 16. When the lever 17 provided on the brake plate 14 is rotated by inclining the contact portion 16 with respect to the panel 13, the amount of contact with the protrusion 22 provided on the surface of the panel 13 changes (in accordance with the inclination). Therefore, the amount of friction with the friction plate 18 provided inside the knob 12 changes. As a result, the knob 12 can be adjusted from a light and well rotating state to a heavy and not excessively rotating state.

  However, in order to be able to make fine adjustments in response to digital displays in recent years, it is better to be able to make adjustments reliably for each count so that a click for each count can be added to the dial for proper use. There is a growing demand for

Conventionally, as a method of giving such a click to a dial, for example, a click mechanism as described in the selection mechanism with a click in (Patent Document 2) is employed. As shown in FIG. 9, the click mechanism has a structure in which a ball-like locking member (hereinafter referred to as a ball) 4 is pressed by a spring 5 around the rotor 3 in which a concave portion 1 and a convex portion 2 are formed in order. Yes. Therefore, when the dial knob attached to the shaft inserted through the rotor 3 is turned, the ball 4 pressed by the spring 5 gets over the convex portion 2 of the rotor 3 and fits into the concave portion 1 to obtain a required click. is there.
JP-A-9-34575 JP 2004-327218 A

  By the way, in order to add the click mechanism as described above to the dial of the “braking force adjustment mechanism” so that it can be used properly, the click mechanism must be released when the “braking force adjustment mechanism” is used. Don't be.

  However, since the click mechanism has a structure in which the ball is pressed against the rotor by a spring, for example, when the spring is loosened to stop the pressure contact, the ball becomes free and cannot be completely separated from the rotor because the ball cannot be controlled. For this reason, if the ball is fixed to the spring, when the ball is pressed against the rotor, it cannot rotate because it rotates together with the rotor and cannot release the rotational force of the rotor.

  Accordingly, an object of the present invention is to enable the click mechanism to be released and to add a click mechanism to the dial of the braking force adjusting mechanism so that it can be used properly.

  In order to solve the above problems, in the present invention, the rotor is formed of a non-magnetic material so as not to be affected by the magnetic field, and either the elastic member or the ball is formed of a magnetic material, and the rest is formed. The elastic member and the ball can be attracted with a magnetic force by forming them with magnets or both with magnets. As described above, since the ball can be attracted (not fixed) by the magnetic force, the ball does not rotate and does not hinder the rotation of the rotor even when the ball is pressed against the rotor. When the elastic member is moved, the moving elastic member and the ball can be adsorbed and separated from the rotor, so that the click mechanism can be released. The magnet includes those obtained by magnetizing a ferromagnetic material.

  At that time, either the entire elastic member or the contact portion with the ball, and either one of the balls may be formed of a magnetic material, and the rest may be formed of a magnet, or both may be formed of a magnet. If one of the elastic members is plate-shaped and is fixed, one of the balls pressed against the rotor can be attracted and separated by bending the elastic member.

  Further, between the dial knob attached to the shaft of the rotating element body protruding from the insertion hole of the panel, the brake plate provided between the panels, and the click mechanism provided in the rotating element body, through a notch for interlocking the panel By providing an interlocking member that comes into contact with the engaging portion of the elastic member of the click mechanism of the rotating element body, the click mechanism can be released by the interlocking member by rotating the brake plate. Power adjustment mechanism and click mechanism can be used properly.

  With the configuration described above, the dial click mechanism can be released. Further, since the click mechanism is released so that it can be used properly, the click mechanism can be added to the dial of the braking force adjusting mechanism.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, in this embodiment, the click mechanism of the present application is added to the dial of the braking force adjusting mechanism.

  That is, the dial includes a dial knob 12 attached to the shaft 11 of the rotating element body 10 that protrudes from the panel 13 and a brake plate 14 between the panel 13, and the rotating element body 10 includes the click mechanism 9. .

  The panel 13 is, for example, a wireless communication device or the like, and a circular partition wall 21 is formed on the panel surface, and a braking plate 14 is disposed in the partition wall 21. Further, a protrusion 22 is formed in the partition wall 21 where the braking plate 14 is disposed. In FIG. 1, the protrusions 22 are provided at two locations in the vertical direction, and each protrusion 22 is provided with a gentle slope in the left-right direction, so that the brake plate 14 can be smoothly rotated as will be described later. It can be moved.

  In addition to the through hole 20 for inserting the shaft 11 of the rotating element body 10, the panel surface is provided with a notch 23 that communicates the brake plate side with the click mechanism side of the rotating element body 10. .

  As shown in FIG. 1, the through hole 20 is horizontally cut at the top to prevent rotation, and the position of the rotating element body 10 is uniquely determined.

  Further, the notch 23 is formed in a state in which a flag-like collar portion is formed in parallel with the circumference of the through hole 20 as shown in FIG. I am doing so.

  Further, three dimples 24 are provided in the partition wall 21 of the panel 13. The dimple 24 is for positioning the brake plate 14 as will be described later. Further, a recess 25 is provided in front of the dimple 24 so that a lever 17 of the brake plate 14 described later can be disposed.

  On the other hand, the dial knob (hereinafter referred to as knob) 12 includes a friction plate 18 on the inner side (brake plate side). The friction plate 18 is made of a resin having a donut shape, and is fitted so that the center hole thereof matches the shaft hole of the knob 12 (the shaft of the rotating element body 10 is fitted).

  The braking plate 14 is a metal donut disc provided with a contact portion 16, a lever 17 and an interlocking member 26. In this embodiment, the contact portion 16 is composed of a pair of arc-shaped tongue pieces as shown in FIG. 1, and is provided on the disc at intervals of 180 ° (with a size that does not protrude from the friction plate 18 of the knob 12). ). Further, a slip stopper such as a rubber plate or felt is attached to the surface of the tongue piece of the contact portion 16.

  Further, the contact portion (tongue piece) 16 is inclined with respect to the panel 13 as shown in FIG. By inclining the contact portion 16 in this way, when the brake plate 14 is rotated as will be described later, the contact position with the protrusion 22 provided on the panel surface changes according to the inclination, so that the protrusion The amount of friction between the knob 12 and the friction plate 18 is changed by changing the height of the brake plate 14 lifted by the portion 22. By doing so, the degree of rotation of the knob 12 can be adjusted.

  Further, the brake plate 14 is provided with a lever 17 on the side so that the brake plate 14 can be rotated. Therefore, the lever 17 is bent a plurality of times as shown in FIG. 1 so as to reach the concave portion 25 of the panel 13 and protrude from the knob 12. Further, a protrusion 32 is provided on the back surface of the lever 17 so as to be fitted into the dimple 24 of the panel 13. By doing so, the lever 17 can be positioned as will be described later.

  On the other hand, the brake plate 14 is provided with an interlocking member 26 so as to come into contact with the click mechanism 9 of the rotating element body 10. The interlocking member 26 is an L-shaped tongue piece provided in parallel with the lever 17 and is inserted into the rotating element body 10 through the notch 23 of FIG. 1 so that it can be interlocked with the rotation of the lever 17. ing. Further, by warping the L-shaped tip, contact with an engaging portion 30 of a click mechanism 9 described later can be smoothly performed.

  As shown in FIG. 3, the click mechanism 9 includes a rotor 3 provided on the shaft 11 of the rotating element body 10, a ball (ball-shaped locking portion) 4, and an elastic member 27.

  The rotating element body 10 is obtained by inserting the shaft 11 with the rotor 3 attached thereto into a case holder (threaded on the outer periphery) 33 and rotatably mounting it with a washer and an E ring.

  The rotor 3 also serves as a pulse encoder in which a concave portion 1 and a convex portion 2 are formed in order on the entire circumference, and is made of a non-magnetic resin so as not to be affected by a magnet described later.

  The ball 4 is of a size that fits into the recess 1 on the periphery of the rotor 3, is formed of a magnetic material, and is fitted into the insertion hole of the case of the rotating element body 10 as shown in FIG. 3. Here, the ball 4 is a magnetic body, but when the elastic member is a magnetic body, the ball 4 is formed of a magnet (or magnetized).

  The elastic member 27 is made of a metal plate having a shape similar to an E shape, and is provided with a hole in one side of the E shape (lower horizontal bar portion in the figure) and screwed to the case of the rotating element body 10. Fix it. Further, a contact portion 28 with the ball 4 is formed on the other side of the E-shape (the horizontal bar portion in the middle).

  As shown in FIG. 5A, the contact portion 28 is formed of a tip-shaped magnet similar to a conical shape, and the ball 4 is attracted by the contact portion 28. Further, the other of the E-shape (the upper horizontal bar portion) is a stopper, which contacts the case to support the elastic member 27 and presses the ball 4 just around the circumference of the rotor 3.

  Since the balls 4 thus pressed are attracted (not fixed) to the elastic member 27 by magnetic force, the balls 4 also rotate when the rotor 3 rotates even when the balls 4 are pressed against the rotor 3. Thus, the rotation of the rotor 3 is not hindered. Further, when the elastic member 27 is moved, the moving elastic member 27 can attract the ball 4 and separate it from the rotor 3, so that the click mechanism 9 can be released. Therefore, the elastic member 27 is formed with an engaging portion 30 with the interlocking member 26.

  That is, the engaging portion 30 has a shape in which an upper portion of an E-shaped vertical bar is cut out and bent outward to receive a tongue piece of the interlocking member 26.

  Therefore, as the interlocking member 26 rotates, the elastic member 27 can be bent outward as indicated by the arrows as shown in FIGS. 4A and 4B, so that FIGS. 6A and 6B, the balls 4 can be attracted and separated from the rotor 3. At this time, a recess 31 is formed in the case of the rotating element body 10 so as not to prevent the rotation of the interlocking member 26.

  This form is configured as described above. In the dial mechanism of this form, first, the shaft 11 of the rotating element body 10 having the click mechanism 9 as shown in FIG. The brake plate 14 and a washer are fitted into the holder 33 of the inserted shaft 11 and fixed with a bolt. At that time, the lever 17 of the brake plate 14 is positioned and attached so as to come to the recess 25 of the panel 13. When the attachment is completed in this way, the knob 12 is fitted to the tip of the shaft 11 and assembled as shown in FIG.

  In this dial that has been assembled, when the lever 17 is brought to the position of the uppermost dimple 24 as shown in FIG. 7A, the protrusion 32 of the lever 17 is fitted and the position thereof can be known. At this time, as shown in FIG. 8A, the contact portion 16 of the inclined braking plate 14 and the projection 22 of the panel 13 are in contact with each other at a small gap between the contact portion 16 and the panel 13. Thus, the height at which the protrusion 22 lifts the contact portion 16 of the brake plate 14 increases, and the amount of friction between the knob 12 and the friction plate 18 increases. As a result, the knob 12 becomes heavy and the amount of rotation decreases. At this time, the interlocking member 26 of the brake plate 14 does not press-contact the engaging portion 30 of the elastic member 27 of the rotating element body 10 at this position, so that the elastic member 27 has the ball 4 as shown in FIG. Is brought into pressure contact with the rotor 3. Therefore, when the knob 12 is turned, the ball fits into the concave portion 1 of the rotor 3 and is locked for each click, so that one count pulse is obtained.

  Next, as shown in FIG. 7B, the lever 17 of the brake plate 14 is set to the position of the middle dimple 24. Then, the protrusion 32 of the lever 17 fits into the dimple 24 and the position thereof is known. At this time, as shown in FIG. 8B, the contact position between the brake plate 14 and the projection 22 of the panel 13 is that the gap between the contact part 16 and the panel 13 is in contact at an intermediate position larger than the previous position. Thus, the height at which the contact portion 16 is lifted is slightly lowered, and the amount of friction between the knob 12 and the friction plate 18 is slightly reduced. As a result, the dial is slightly lighter and the amount of rotation is increased. At this time, the interlocking member 26 of the brake plate 14 presses the engaging portion 30 of the elastic member 27 of the rotating element body 10, so that the elastic member 27 attracts the balls 4 and rotates the rotor as shown in FIG. Move away from 3. As a result, the click mechanism 9 is released, and the knob 12 can be rotated without a click feeling.

  Further, as shown in FIG. 7C, the lever 17 of the brake plate 14 is set to the position of the lower dimple 24. Then, as in the previous case, the protrusion 32 of the lever 17 fits into the dimple 24 and the position thereof can be known. At this time, as shown in FIG. 8C, the contact position between the contact portion 16 of the brake plate 14 and the protrusion 22 of the panel 13 becomes a position where the clearance between the contact portion 16 and the panel 13 becomes large and does not contact. Therefore, the contact portion 16 of the brake plate 14 is not lifted, and the amount of friction between the knob 12 and the friction plate 18 is eliminated. As a result, the knob 12 is in a free state. At this time, the interlocking member 26 of the brake plate 14 presses the engaging portion 30 of the elastic member 27 of the rotating element body 10 more strongly than before, so that the elastic member 27 is further bent and adsorbed as shown in FIG. The ball 4 is completely separated from the rotor 3. As a result, the click mechanism 9 continues to be released, so that the knob 12 can be rotated lightly and greatly in a free state.

  Since the click mechanism 9 can be released by operating the lever 17, the click mechanism can be added to the dial of the braking force adjusting mechanism for proper use.

  Note that the switching of the lever 17 has been described here when the lever 17 is moved from the top to the bottom. However, even when the lever 17 is moved from the bottom to the top, the lever 17 operates in the same manner.

  In this embodiment, the case where a plate-like member is used as the elastic member 27 has been described. However, the spring 5 can be used in addition to this. In that case, the spring 5 may be magnetized or the ball 4 may be magnetized. Then, a means for moving the spring 5 (for example, an elastic plate with one fixed and the other attached with the spring 5) may be provided.

Exploded perspective view of the embodiment Partial cutaway side view of the embodiment Exploded perspective view of click mechanism (A), (b) Action explanatory drawing of embodiment (A) is a cross-sectional view of the main part of the embodiment, (b) is an operation explanatory diagram of (a). (A) is VIa-VIa sectional drawing of Fig.5 (a), (b) is operation | movement explanatory drawing of (a). (A), (b), (c) Action explanatory drawing of embodiment (A), (b), (c) Action explanatory drawing of embodiment Action explanatory diagram of conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Concave part 2 Convex part 3 Rotor 4 Ball 5 Spring 9 Click mechanism 10 Rotating element main body 11 Shaft 12 Knob 13 Panel 14 Brake plate 16 Contact part 17 Lever 18 Friction plate 20 Through-hole 22 Protrusion 23 Notch 26 Interlocking member 27 Elastic member 28 Contact part 30 Engagement part

Claims (3)

A rotor (3) in which a recess (1) and a protrusion (2) are formed in order on the entire circumference is attached to a shaft (11), and a ball-like engagement is formed around the rotor (3) attached to the shaft (11). In the dial click mechanism in which the member (4) is pressed by the elastic member (27),
The case for accommodating the rotor (3) attached to the shaft (11) has an insertion hole, the elastic member (27) is plate-shaped, one end is fixed to the outer periphery of the case, and the other is a ball-shaped engagement. A contact portion (28) with the stop member (4) is formed so that the ball-shaped locking member (4) in the insertion hole can be pressed against the circumference of the rotor (3) by the contact portion (28). And
The rotor (3) is formed of a non-magnetic material, and either the entire elastic member (27) or the contact portion (28) or the ball-shaped locking member (4) is formed of a magnetic material. And the rest are made of magnets, or both are made of magnets,
By bending the other end of the elastic member (27) to which the one is fixed, the ball-shaped locking member (4) pressed against the rotor (3) is separated, and is inserted into the insertion hole. Click mechanism (9) . It is assumed that the click mechanism is provided in the rotating element body (10) in which the shaft (11) protrudes from the through hole (20) of the panel (13),
A dial knob (12) is attached to the shaft of the rotating element body (10), and a brake plate (14) is provided between the dial knob (12) and the panel (13).
The panel (13) is formed with a notch (23) communicating the brake plate side and the click mechanism side.
On the other hand, the dial knob (12) includes a friction plate (18) on the inner side of the brake plate side,
A lever (17) is provided on a side of the brake plate (14) so as to protrude from the dial knob (12), the brake plate (14) can be rotated by the lever (17), and the brake is applied. The plate (14) is provided with an interlocking member (26) that comes into contact with the click mechanism (9) of the rotating element body (10) through the interlocking notch (23) of the panel (13) as it rotates. ,
The click mechanism (9) has a rotor (3) in which a recess (1) and a protrusion (2) are formed in order on the entire circumference of the shaft (11) of the rotating element body (10). ) Is provided with an insertion hole, an elastic member (27) that presses the ball-shaped locking member (4) against the rotor (3) is a plate-like one, and one end is fixed to the outer periphery of the case, On the other side, a contact portion (28) with the ball-shaped locking member (4) is formed, and the ball-shaped locking member (4) in the insertion hole is connected to the rotor (3) by the contact portion (28). And an engagement portion (30) for engaging the interlocking member (26) of the brake plate (14) to bend the elastic member (27).
The rotor (3) is formed of a non-magnetic material, and either the entire elastic member (27) or the contact portion (28) or the ball-shaped locking member (4) is formed of a magnetic material. And the rest are made of magnets, or both are made of magnets,
The brake plate (14) is rotated by the lever (17), the interlocking member (26) is engaged with the engaging portion (30) of the elastic member (27), and one of the elastic members (27) is fixed. The click mechanism (9) according to claim 1 , wherein the ball-shaped locking member (4) pressed against the rotor (3) is separated by bending the other end of the rotor and inserted into the insertion hole. ). A brake plate (14) is provided between the dial knob (12) attached to the shaft (11) of the rotating element body (10) protruding from the through hole (20) of the panel (13) and the panel (13), and the rotating element The main body (10) has a click mechanism (9),
Before Symbol panel (13), together with projections (22) on the panel surface which is disposed in the brake plate (14), the notch communicating brake plate side and a click mechanism side (23) is formed,
On the other hand, pre-Symbol dial knob (12) is provided with a friction plate (18) on the inside of the brake plate side,
Before SL brake plate (14), the contact portion between the friction plates of the dial knob (12) (18) comprises a (16), is inclined the contact portion (16) to a panel surface, the panel surface The amount of contact with the provided protrusion (22) varies according to the inclination, and a lever (17) is provided on the side of the brake plate (14) so as to protrude from the dial knob (12). The brake plate (14) can be rotated by the lever (17), and the brake plate (14) is rotated through the notch (23) for interlocking with the panel (13) along with the rotation. An interlocking member (26) that comes into contact with the click mechanism (9) of the rotating element body (10);
Before SL click mechanism (9) has a rotor (3) of non-magnetic material on the shaft (11) of the rotating element body (10), the rotor (3) to the magnetic body or ball-shaped locking magnet The member (4) is pressed with a plate-like magnet or a magnetic elastic member (27), and the elastic member (27) is engaged with the interlocking member (26) of the brake plate (14) to be an elastic member. The dial provided with the engaging part (30) for bending (27).

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