JP2009199156A - Moderation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate setting of the angle of moderation and setting of strength of a feeling of moderation, and to apply the reasonable feeling of moderation even when the turning speed of a turning member becomes fast. <P>SOLUTION: A moderation device 1 is provided with: a turning resistance receiving part 5 installed in the turning member 3 to be turned by an operation dial 16; a resistance applying means 7; and an electromagnet 4. The resistance applying means 7 is provided with a coil spring 9 and a pressing member 10. The pressing member 10 is pressed against the recessed surface part 6 of the turning resistance receiving part 5 with spring force of the coil spring 9, and moderation is given when power is supplied to the electromagnet 4. Furthermore, when the turning direction of the turning member 3 is inverted after the power is supplied to the electromagnet 4, and the turning positions of the rotating member 3 and a member 8 to be attracted are matched, the power supply to the electromagnet 4 is interrupted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a moderation device that gives moderation to the operation of a rotating member operated from the outside.

  Conventionally, a rotary switch device used for various controls of an automobile, for example, a moderation surface portion having alternating ridges and valleys formed on the inner surface of the case, like the switch device disclosed in Patent Document 1, It has a moderation mechanism comprising a coil spring provided on the rotor side in the case and a ball urged so as to abut on the moderation surface portion by the coil spring.

According to the moderation mechanism having such a configuration, when the user performs the switch operation by rotating the operation knob, the ball moves over the peak portion to the valley portion with the rotation of the rotor. Depressed. That is, the feedback force applied to the operation knob changes before and after the ball exceeds the mountain. Thereby, moderation is given to rotation of the operation knob.
Japanese Utility Model Publication No. 5-94922

  In the above-mentioned Patent Document 1, the rotation angle at which the moderation is given when the operation knob is rotated (hereinafter referred to as the moderation angle) is limited by the formation pitch (angle pitch) of the peak and valley portions of the moderation surface. There is a problem. As a solution to this problem, a moderation device having the configuration shown in FIG. 13 is considered.

  In FIG. 13, for example, a shaft 103 is rotatably supported on an apparatus base 102 attached to an appropriate part on the back side of the instrument panel 101. An operation member 104 is attached to one end portion (right end portion in the figure) of the shaft 103 that protrudes to the surface side of the instrument panel 101 so as to rotate integrally with the shaft 103. Further, a disk 105 a of a rotary encoder 105 for detecting the rotation position of the operation member 104 is attached to the other end portion of the shaft 103 so as to rotate integrally with the shaft 103.

  Further, the attracted portion 106 is provided on the other end side of the shaft 103 so as to rotate integrally with the shaft 103, and an attracted body 106 a made of a magnetic plate is attached to the right surface of the attracted member 106. ing. An electromagnet 107 is provided above the attracted body 106a so as to be rotatable independently of the shaft 103 and to be movable in the axial direction at a minute distance. Between the electromagnet 107 and the apparatus base 102, spring plates 108 and 108 made of synthetic resin are provided. One end of each of the spring plates 108 and 108 is attached to the apparatus base 102, and the other end is the It is attached to an electromagnet 107. The spring plates 108 and 108 provide resistance against the rotation of the shaft 103. An appropriate operation object is attached to or connected to the shaft 103.

  In the configuration of FIG. 13, the electromagnet 107 is normally disconnected, and when the operation member 104 is rotated by the user, the shaft 103, the disk 105a, and the attracted portion 106 rotate integrally. When the operation member 104 is rotated by a predetermined angle, the rotary encoder 105 detects the predetermined angle, and based on this, a control unit (not shown) energizes the electromagnet 107. Then, the electromagnet 107 and the object to be attracted 106a are attracted to each other, and the electromagnet 107, the object to be attracted 106a, the shaft 103, and the operation member 104 are integrated. Accordingly, when the user further rotates the operation member 104 from this state, the other end of the leaf springs 108 and 108 is elastically deformed in the rotation direction, thereby generating a spring force in the restoring direction, and the user rotates. When resistance is applied and the electromagnet is turned off, the rotational resistance disappears. Moderation is given by the difference in rotational resistance.

  However, in this configuration, since the spring plates 108 and 108 made of synthetic resin are used, it is difficult to set a shape for achieving a spring function, and it is also difficult to select a material for setting the spring force. There was a problem that was difficult. In addition, it is difficult to set subtle settings such as a smoothness degree of moderation or a sudden degree. In addition, after the user rotates the operation member 104 in one direction and the electromagnet is energized at a predetermined energization start position, the user reversely rotates the operation member 104 before the electromagnet is de-energized. When the operation of returning to the moving direction is performed, the shaft 103 again passes the predetermined energization start position in the return direction, but there is a problem that the power is disconnected only after the energization start position has passed in the return direction. For this reason, there is a problem that a sense of moderation in the reverse direction is temporarily given. Further, when the user releases the operation force on the operation member 104 and the operation member 104 returns and stops at the predetermined energization start position, there is a problem that the electromagnet energization state is continued.

  The present invention has been made in view of the above circumstances, and its purpose is to facilitate the setting of the moderation angle and the moderation feeling, and the rotation direction is reversed while the rotating member is energized with an electromagnet. It is an object of the present invention to provide a moderation device that can properly cut off an electromagnet when the power is off.

  The invention according to claim 1 is an apparatus main body, a rotation member which is provided in the apparatus main body so as to be rotatable and is operated by an external operation force, and a rotation resistance receiving portion having a substantially V-shaped concave surface portion. A resistance applying means for providing a rotation resistance by pressing the pressing member against the concave surface portion of the rotation resistance receiving portion by a spring force of the coil spring and the coil spring made of steel wire An electromagnet provided in the apparatus main body, a rotation position detecting means for detecting the rotation position of the rotation member, and a rotation direction detecting means for detecting the rotation direction of the rotation member. And a control means for controlling the disconnection of the electromagnet according to the rotation position of the rotation member detected by the rotation position detection means for the rotation member, and a concentric state with the rotation center of the rotation member In a non-rotating state, it is attached to the electromagnet when it is energized. A response member to be determined, a response member rotation position detection means for detecting the rotation position of the response member, and a storage means, wherein one of the rotation resistance receiving portion and the resistance application means is The rotation member is provided so as to be rotatable integrally with the rotation member, and the other is provided on the response member. The rotation position of the rotation member detected by the rotation position detection means for the rotation member after the electromagnet energization, It is determined whether or not the rotation position of the response member detected by the response member rotation position detection means is synchronized, and the previous synchronization position when both positions are shifted is stored in the storage means. Whether or not the rotating member is reversed is monitored by the rotating direction detecting means from time, and when it is detected that the rotating member is reversed, the rotating member detecting position detecting means detects the rotating member. The rotation position of the rotation member becomes the stored synchronization position. When the, having characterized in that provided reversing deenergized control means for-energized the electromagnet.

  In the first aspect of the present invention, when the rotating member is rotated, one of the rotating resistance receiving portion and the resistance applying means rotates integrally with the rotating member, and the other is When the electromagnet is disconnected, it rotates together with the rotating member. Therefore, when the electromagnet is disconnected, both the rotation resistance receiving portion and the resistance applying means are rotated in accordance with the rotation operation of the rotation member, and no feeling of moderation occurs. When the rotation member reaches a predetermined rotation position, the other rotation position is detected by the position detection means, and the electromagnet is energized by the control means. By this energization, the other of the rotation resistance receiving portion and the resistance applying means is attracted to the electromagnet and fixed in a non-rotation state. Then, the pressing member of the resistance applying means slides on the concave surface portion of the rotational resistance receiving portion against the spring force of the coil spring absolutely or relatively, and the spring force of the coil spring increases. The resistance becomes stronger. When the rotating member reaches a predetermined rotating position, the electromagnet is cut off, and this resistance is lost. A feeling of moderation occurs due to a sudden change in resistance caused by the coil spring.

  In the case of this configuration, the moderation angle can be easily changed by changing the predetermined rotation position. Moreover, it has a rotation resistance receiving part which has a substantially V-shaped concave surface part, a steel wire coil spring, and a pressing member, and the said pressing member is made into the said concave surface part of a rotation resistance receiving part with the spring force of this coil spring. With the resistance applying means for pressing against the rotation force to give the rotation resistance, the moderation is given, so the selection of the coiled spring and the setting of the inclination angle of the concave part can set the interval and strength of the moderation feeling. It becomes easy.

  Further, in this first aspect, the turning position of the turning member detected by the turning position detecting means for the turning member after the electromagnet energization and the turning position for the responsive member are detected by the reversing power interruption control means. It is determined whether or not the rotation position of the responding member detected by the detection means is synchronized, and the synchronization position immediately before the shift of both positions is stored in the storage means. The purpose of this judgment is as follows. That is, even after energization of the electromagnet, the rotating member and the responsive member are rotating in synchronism (integral rotation) means that the pressing member is in the trough of the concave surface portion, and both members are The deviation means that the response member is fixed by the electromagnet and the pressing member has started to climb the concave surface portion relatively (rotation resistance has started to appear), and the response immediately before the pressing member starts to climb the concave surface portion. The rotation position of the member and the rotation position of the rotation member, that is, the position where the pressing member is located at the center of the valley of the concave surface portion can be stored. The reason why the responding member is not immediately fixed when the electromagnet is energized is that there is a time lag due to the response delay of the electromagnet.

  Then, the reversal power-off control means monitors whether or not the turning member is reversed by the turning direction detecting means from the time of the deviation, and when it is detected that the turning member is reversed, When the rotation position of the rotation member detected by the rotation position detection means for the rotation member becomes the stored synchronization position, the electromagnet is disconnected, so that the pressing member is located at the center of the valley of the concave surface portion. The electromagnet can be cut off at the rotation position when it reaches, and the moderation in the reverse direction is not temporarily given. Further, even if the user releases the operating force in one direction with respect to the rotating member and the rotating member returns to the energization start position, the energized state is It will not be continued.

  The present invention facilitates the setting of the moderation angle and the moderation feeling, and can appropriately cut off the electromagnet when the rotating direction of the rotating member is reversed while the electromagnet is energized.

  Hereinafter, a first embodiment in which the present invention is applied to a moderation device for setting a temperature of a vehicle air conditioner, for example, will be described with reference to FIGS. FIG. 1 shows a longitudinal mode of the moderation device 1. In FIG. 1, the moderation device 1 is attached to the back side of an instrument panel 15 of an automobile, for example.

  The moderation device 1 includes a device case 2 as a device body. A rotating member 3 is rotatably supported on the device case 2. A shaft portion 3 a at one end of the rotating member 3 protrudes from the device case 2 and the instrument panel 15. An operation dial 16 that is an operation member for temperature adjustment is attached to the shaft portion 3a so as to rotate integrally. In the instrument panel 15, a temperature display unit 17 is provided around the operation dial 16 as shown in FIG. The temperature display portion 17 is provided with scale portions m1 to m15 for indicating a temperature of 18 ° C. to 32 ° C. corresponding to an angle range α ° from an angle k0 ° to an angle k29 °.

A substantially cylindrical electromagnet 4 is attached to an electromagnet holder 2a in the apparatus case 2, and a hollow portion of the electromagnet 4 is rotatably inserted through a reaction shaft 8a.
Further, the rotation member 3 is provided with a cylindrical sleeve-shaped rotation resistance receiving portion 5 so as to rotate integrally with the rotation member 3, and on the inner surface of the rotation resistance receiving portion 5, As shown in FIG. 2, a substantially V-shaped concave surface portion 6 is formed. The concave surface portion 6 is substantially V-shaped with the slope 6a and the slope 6b.

  In addition, a resistance applying means 7 is provided in the response shaft 8 a portion inside the rotation resistance receiving portion 5. The resistance applying means 7 is provided on the attracted member 8 which is a response member. The attracted member 8 is made of a magnetic material, and is provided so as to be rotatable concentrically with the rotating member 3 in a form facing the electromagnet 4 in the axial direction. The resistance applying means 7 is configured by accommodating and arranging a steel wire coil spring 9 and a pressing member 10 in a guide cylinder portion 11 formed in a holder 7a. The coil spring 9 is accommodated in a compressed state. As shown in FIG. 2, the pressing member 10 is pressed and urged by the spring force of the coil spring 9 toward the valley center of the concave surface portion 6.

  The first position sensor 12 is a rotation position detecting means for a rotation member that detects the rotation position of the rotation member 3, and is composed of, for example, a rotary encoder. The first position sensor 12 includes a disk 12 a attached to the outer periphery of the rotating member 3 and a photo sensor 12 b attached to the apparatus case 2. A large number of slits for detecting the rotation angle are formed in the disk 12a. This position sensor 12 detects the rotation position (angular position) of the rotation member 3, and this rotation position detection signal is given to the control device 14 (see FIG. 4). The rotation position detection signal from the first position sensor 12 is also used for temperature setting.

  The second position sensor 13 is a responsive member rotation position detecting means for detecting the rotation position of the attracted member 8 which is a responsive member, and is composed of, for example, a rotary encoder. The second position sensor 13 includes a slit portion 13 b formed on the outer periphery of the attracted member 8 and a photo sensor 13 b attached to the apparatus case 2. This position sensor 13 detects the rotational position (angular position) of the attracted member 8, and this rotational position detection signal s13 is given to the control device 14 (see FIG. 4).

  The first position sensor 12 and the second position sensor 13 have the same configuration, the angular resolution is set to, for example, “1 °”, and 360 equally spaced positions (absolute positions) are detected by one rotation. Can do. Both the position sensors 12 and 13 have a relationship in which the rotation position detection signals s12 and s13 are output in synchronization in a state where the pressing member 10 is located at the center of the valley of the concave surface portion 6.

  The control device 14 shown in FIG. 4 functions as control means, rotation direction detection means, and reversal power interruption control means, and includes a microcomputer. This microcomputer includes a CPU, a ROM, a RAM, and the like, and the RAM corresponds to a storage unit. The function as the rotation direction detecting means is to detect the rotation direction by the change in the rotation angle position of the rotation member 3 by the first position sensor 12.

  The function as the control means is that the electromagnet 4 is energized when the rotation position of the rotation member 3 detected by the first position sensor 12 reaches a preset energization start position, and is preset. This is a function of cutting off the electromagnet 4 when the energization stop position is reached. That is, the energization start position refers to the rotation angle of the rotation member 3 at which the control device 14 starts energizing the electromagnet 4, and the energization stop position refers to the rotation member 3 at which the control device 14 stops energization of the electromagnet 4. These energization start positions and energization stop positions will be described later.

  The function as the reversal power-off control means functions as the rotation position of the rotation member 3 detected by the first position sensor 12 after the electromagnet 4 is energized and the attracted member 8 detected by the second position sensor 13. Whether or not the rotation position is synchronized with each other, and the synchronization position immediately before the shift of both positions is stored in the RAM as the storage means, and from the time of the shift, the rotation direction detection means detects the rotation position. Whether or not the rotating member 3 is reversed is monitored, and when it is detected that the rotating member 3 is reversed, the rotation position of the rotating member 3 detected by the first position sensor 12 is stored in the memory. This is a function of cutting off the electromagnet 4 when the synchronized position is reached.

  The energization start position and the energization stop position are set as follows. FIG. 7 shows the temperature display unit 17 in an expanded state. 7 and 3, the energization start position when the rotating member 3 is rotated in the direction of arrow A is the reference point 3P of the rotating member 3 (corresponding to the index 15P of the operation dial 16). The angle positions corresponding to the part 17 are angles k1 ° (deg), k3 °, k5 °,... K27 °. The energization start position when the rotating member 3 is rotated in the direction of arrow B is the angle at which the reference point 3P of the rotating member 3 reaches angles k28 °, k26 °, k24 °,... K2 °. Position.

  If the angle detection resolution of the position sensor 12 is “1 °”, for example, the energization stop position when the rotating member 3 is rotated in the direction of the arrow A is the reference point 3P of the rotating member 3 at the angle “ k2 ° + 1 ° ”,“ k4 ° + 1 ° ”,“ k6 ° + 1 ° ”,...,“ k28 ° + 1 ° ”. Further, the energization stop position when the rotating member 3 is rotated in the direction of arrow B is “k27 ° -1 °”, “k25 ° -1 °”, “k23 ° -1 °”,. The angular position reaches “−1 °”. The “−1 °” and “+ 1 °” may be determined in accordance with the angle detection resolution of the position sensor 12, and if the resolution is high, “−0.5 °”, “+ 0.5 °”, and the like are further reduced. You can also.

  The operation of the above configuration will be described. Now, as shown in FIG. 5, it is assumed that the operation dial 16 (and hence the rotating member 3) is at, for example, the 24 ° C. display unit instruction position P1 (angle k12 ° to k13 ° intermediate position). In this state, the electromagnet 4 is in a disconnected state, the pressing member 10 is pressed and urged to the center of the valley of the concave surface portion 6 of the rotational resistance receiving portion 5, and the attracted member 8 is rotated. The moving member 3 can be rotated. If the user rotates the operation dial 16 in the direction of arrow A in FIG. 2 from this state, the pressing member 10 is pressed against the center of the valley of the concave surface portion 6 of the rotation resistance receiving portion 5 as described above. Since the biased member 8 can be rotated with respect to the rotating member 3, the pressing member 10 also rotates integrally (see FIG. 6A). That is, when the electromagnet 4 is disconnected, both the rotation resistance receiving portion 5 and the resistance applying means 7 are rotated in accordance with the rotation of the rotation member 3, so that a feeling of moderation does not occur (FIGS. 5 and 5). 6 (a) angular range a1 °). At the time of this disconnection, since both the rotation resistance receiving portion 5 and the resistance applying means 7 rotate integrally, the second position sensor 13 synchronizes with the first position sensor 12 and a position detection signal. s13 is output. The synchronized area and the asynchronous area are shown in FIG. Note that the asynchronous region is not a completely asynchronous position, but is synchronized due to a response delay of the electromagnet 4 in a very short time immediately after energization, as will be described later.

  When the rotation angle of the operation dial 16 reaches an angle k13 ° in FIG. 5, the electromagnet 4 is energized, and the electromagnet 4 attracts and fixes the attracted member 8 by this energization. As a result, the pressing member 10 is fixed in a non-rotatable state, while the rotation resistance receiving portion 5 continues to rotate in the direction of arrow A in response to the rotation operation force by the user. Then, as shown in FIG. 6B, the slope 6 a of the concave surface portion 6 of the rotational resistance receiving portion 5 comes into sliding contact with the pressing member 10 (relatively, the pressing member 10 starts to climb the slope 6 a of the concave surface portion 6. ), The spring force of the coil spring 9 in the pressing direction increases, and the rotation resistance receiving portion 5 comes to feel the rotation resistance strongly by the user.

  As a result, the user feels resistance, that is, moderation (angle range a2 ° in FIG. 5). Then, when the electromagnet 4 is turned off when the rotation angle of the operation dial 16 becomes the angle “k14 ° + 1 °” which is the energization stop position, the suction fixing or the suction fixing is released, and the moderation feeling is released. It is canceled and a click feeling acts. During this energization, the second position sensor 13 stops the rotation of the attracted member 8 and therefore does not output the rotation detection signal s13 and the signal output is asynchronous. However, in reality, there is a time lag due to a response delay of the electromagnet 4 and the synchronization is made in a very short time immediately after energization.

  The control of the control device 14 when the user operates the operation dial 16 in the direction of the arrow after the energization start and then reverses will be described with reference to FIGS. 8 and 9. FIG. 9 is an enlarged view of the time axis of FIG. The control device 14 detects the turning position of the turning member 3 detected by the first position sensor 12 and the second position sensor 13 from the above energization start time (angle k13 °) (after energization of the electromagnet 4). It is determined whether or not the rotation position of the attracted member 8 detected by the above is synchronized, and the synchronization position immediately before the shift of both positions is stored in the RAM as the storage means. The purpose of this judgment is as follows. That is, even after the electromagnet 4 is energized, the rotating member 3 and the attracted member 8 are rotating (synchronously rotating) in synchronism with each other. In addition, the fact that the two members are displaced means that the attracted member 8 is fixed by the electromagnet 4 and the pressing member 10 starts to climb the concave surface portion 6 relatively (rotation resistance starts to appear). . Therefore, the rotation position of the attracted member 8 and the rotation position of the rotation member 3 immediately before the pressing member 10 starts to climb the concave surface portion 6 are stored as the synchronization position immediately before the two positions are shifted. The rotation position where the pressing member 10 becomes the center of the valley of the concave surface portion 6 can be stored.

  The attracted member 8 also rotates in synchronization up to the angle k13 °, and the second position sensor 13 outputs a position detection signal s13 in synchronization with the first position sensor 12. In the first position sensor 12 and the second position sensor 13, the position detection signals corresponding to the angle k13 ° are denoted by symbols s12k13 and s13kx, respectively. In this case, it is assumed that the position detection signal is shifted at the next angle [k13 ° + 2 °] by synchronizing with the angle [k13 ° + 1 °] due to a time lag such as a response delay of the electromagnet 4. At the immediately preceding rotation position of the angle [k13 ° + 1 °], the pressing member 10 is at the center of the valley of the concave surface portion 6, and the rotation position detection signal s12 (k13 + 1) of the first position sensor 12 The rotation position detection signal s13 (kx + 1) of the second position sensor 13 is synchronized. The rotation position based on the rotation position detection signal s12 (k13 + 1) of the first position sensor 12 and the rotation position based on the rotation position detection signal s13 (kx + 1) of the second position sensor 13 are stored in the RAM. .

  Then, it is monitored whether or not the rotating member 3 has been reversed from the time of the deviation (time tz), and when it is detected that the rotating member 3 has been reversed, the rotation of the first position sensor 12 is performed. It is determined whether or not the movement position detection signal s12 and the rotation detection signal s13 of the second position sensor 13 are synchronized, and a synchronization position (this synchronization position is the detection of the rotation position of the first position sensor 12). When the signal s12 (k13 + 1) and the rotation position detection signal s13 (kx + 1) of the second position sensor 13 are synchronized, the electromagnet 4 is disconnected.

  As a result, the electromagnet 4 can be disconnected at the rotation position when the pressing member 10 reaches the center of the valley of the concave surface portion 6, and the moderation in the reverse direction is not temporarily given. Further, even if the user releases the operating force in one direction with respect to the rotating member 3 and the rotating member 3 returns to the energization start position, the electromagnet 4 has already been disconnected at this energization start position. The energized state is not continued.

  In addition, when the electromagnet 4 is turned off at the angle “k13 ° -1 °”, which is the position where the current is stopped when the current is reversed after being energized at the angle k13 °, the reference FIGS. 11 and 12 Will be described with reference to FIG. When the operation dial 16 is inverted to reach an angle k13 ° (position shown in FIG. 12), the electromagnet 4 remains energized even at this position, so that the pressing member 10 remains fixed. If the operation dial 16 is moved in the reverse direction (arrow B direction) as it is from this state, a sense of moderation is given in the section up to the angle “k13 ° -1 °”, and the angle “k13 ° -1 °” The power is cut off at the position. Therefore, in FIGS. 11 and 12, there is a problem that power is cut off only after the energization start position has passed in the return direction. For this reason, there is a problem that a sense of moderation in the reverse direction is temporarily given. Further, when the user releases the operation force on the operation dial 16 and the operation dial 16 returns with the spring force of the coil spring 9 and stops at the predetermined energization start position, the energization state of the electromagnet 4 is continued. There is also a problem.

However, in the present embodiment, as described above, such a problem can be solved.
According to this embodiment, when the rotation member 3 as the rotation member is rotated, the rotation resistance receiving portion 5 rotates integrally with the rotation member 3, and the resistance applying means 7. However, when the electromagnet 4 is disconnected, it rotates together with the rotating member 3. Therefore, when the electromagnet 4 is disconnected, both the rotation resistance receiving portion 5 and the resistance applying means 7 are rotated in accordance with the rotation operation of the rotation member 3, and no feeling of moderation is generated. When the shaft reaches a predetermined rotation position, the position sensor 12 detects the predetermined rotation position, and the electromagnet 4 is energized by the control device 14 means as a control means. By this energization, the resistance applying means 7 is attracted to the electromagnet 4 and fixed in a non-rotating state. Then, the pressing member 10 of the resistance applying means 7 comes to slide relative to the concave surface portion 6 of the rotational resistance receiving portion 5 against the spring force of the coil spring 9, and the spring force of the coil spring 9 increases. And resistance becomes stronger. When the rotating member 3 reaches a predetermined rotating position, the electromagnet 4 is disconnected and this resistance is lost. As a result, a sense of moderation can be generated by a sudden change in the resistance feeling due to the coil spring 9.

  According to the present embodiment, the moderation angle can be easily changed by changing the energization start position and the energization stop position. Further, the rotating resistance receiving portion 5 having a substantially V-shaped concave surface portion 6, a steel wire coil spring 9 and a pressing member 10 are provided, and the spring force of the coil spring 9 causes the pressing member 10 to rotate. Since the resistance applying means 7 for pressing against the concave surface portion 6 of the receiving portion 5 to give rotational resistance is a configuration that provides moderation, the selection of the coil spring 9 and the inclination angle of the concave surface portion 6 are determined. Setting makes it easy to set a moderation interval and strength.

  Further, according to this embodiment, when the rotation direction of the operation dial 16 and thus the rotation member 3 is reversed after the electromagnet 4 is energized at the energization start position, it is detected by the first position sensor 12. Since the electromagnet 4 is disconnected when the rotation position of the rotation member 3 reaches the stored synchronization position, the electromagnet is rotated at the rotation position when the pressing member 10 reaches the center of the valley of the concave surface portion 6. 4 can be disconnected, and the moderation in the reverse direction is not temporarily given. Even if the user releases the operation force in one direction with respect to the rotation member 3 and the rotation member returns to the energization start position, the electromagnet 4 has already been disconnected at this energization start position. The state will not continue.

  FIG. 10 shows a second embodiment of the present invention. This second embodiment differs from the first embodiment in the following points. In the first embodiment, the rotation resistance receiving portion 5 is provided so as to be rotatable integrally with the rotation member 3, and the resistance applying means 7 is provided in the attracted member 8. However, the third embodiment Then, the resistance applying means 7 is provided so as to be rotatable integrally with the rotating member 3, and the rotating resistance receiving portion 5 is formed on the receiving member 18 provided on the attracted member 8. Even if it does in this way, the same effect as a 1st example can be acquired.

  The present invention is not limited to the above embodiments, and may be modified as follows. The rotation position detecting means is not limited to the rotary encoder, but may be a potentiometer or a combination of a plurality of Hall ICs and magnetic poles. Further, the pressing member and the pressing member may be formed in a spherical shape, or a steel ball may be used. Further, the moderation device of the present invention can be applied to various devices such as a joystick device in addition to a temperature control device for an air conditioner. Moreover, the concave surface portion may be substantially V-shaped as a whole, and the shape of the central portion of the valley is not limited to the illustrated corner portion. For example, the central portion of the valley of the concave portion may be rounded. And it may be a narrow flat part. The storage means may be a non-volatile memory externally attached to the control device.

Vertical side view showing a first embodiment in which the present invention is applied to a moderation device for setting the temperature of an air conditioner TT line sectional view of FIG. Front view of instrument panel Electrical configuration block diagram Diagram for explaining power interruption control and moderation feeling for electromagnet (A), (b) is a view corresponding to FIG. 2 for explaining the operation. The figure which shows the relationship between a conduction area, a temperature display part, and moderation feeling Diagram for explaining power interruption when the rotation direction is reversed The figure which expanded the time axis in FIG. FIG. 2 equivalent view showing a second embodiment of the present invention FIG. 8 equivalent diagram showing a reference example FIG. 2 equivalent diagram for explaining the operation 1 equivalent diagram showing a conventional example

Explanation of symbols

  In the drawings, 1 is a moderation device, 2 is a device case (device main body), 3 is a rotating member, 4 is an electromagnet, 5 is a rotating resistance receiving portion, 6 is a concave surface portion, 7 is a resistance applying means, and 8 is an attracted member. Member (responsive member), 9 is a coil spring, 10 is a pressing member, 12 is a first position sensor (rotating position detecting means for rotating member), and 13 is a second position sensor (detecting rotating position for responding member). Means), 14 is a control device (control means, rotation direction detecting means, storage means, reversal power interruption control means), 15 is an instrument panel, 16 is an operation dial, and 17 is a temperature display section.

Claims (1)

The device body;
A rotation member provided in the apparatus main body so as to be rotatable and operated by an external operation force;
A rotational resistance receiving portion having a substantially V-shaped concave surface portion;
A resistance applying means having a steel wire coil spring and a pressing member, and pressing the pressing member against the concave surface portion of the rotation resistance receiving portion by the spring force of the coil spring to provide a rotation resistance; ,
An electromagnet provided in the apparatus body;
Rotating member rotation position detecting means for detecting the rotation position of the rotation member;
Rotation direction detecting means for detecting the rotation direction of the rotation member;
Control means for controlling disconnection of the electromagnet according to the rotation position of the rotation member detected by the rotation position detection means for the rotation member;
A responding member provided so as to be rotatable in a concentric state with the rotation center of the rotating member, and being attracted to the electromagnet when the electromagnet is energized and fixed in a non-rotating state;
Responsive member rotational position detecting means for detecting the rotational position of the responsive member;
Storage means,
One of the rotation resistance receiving portion and the resistance applying means is provided so as to be integrally rotatable with the rotation member, and the other is provided on the response member.
Is the rotation position of the rotation member detected by the rotation position detection means for the rotation member after energization of the electromagnet synchronized with the rotation position of the response member detected by the rotation position detection means for the response member? The storage position is stored in the storage means immediately before the two positions are deviated, and the rotation direction detecting means is used to monitor whether or not the turning member has been reversed. When it is detected that the rotating member is reversed, the electromagnet is turned on when the rotating position of the rotating member detected by the rotating position detecting means for rotating member becomes the stored synchronous position. A moderation device characterized by providing a reversal power-off control means for power-off.

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