JP5571474B2 - Operating device - Google Patents

Description

  The present invention relates to a dial type operation device.

  2. Description of the Related Art Conventionally, for example, there are a mechanical type and an electric type as an operating device used for air conditioning operation of a vehicle. Among them, the mechanical type is a device that finally rotates a predetermined rotating body such as a pulley through the transmission member with only the hand of the operator who operates the operation member (for example, Patent Documents 1 to 3). On the other hand, the electric type is an electric signal generated based on the operation of the operator, which operates a motor via an electronic control unit and rotates the rotated body with the driving force of the motor. is there.

JP 2005-96579 A JP-A-2005-96580 JP 2005-96581 A

  Among the above conventional ones, the mechanical type can reduce the cost, but the operation load on the operator is large, and the operation requires force. On the other hand, the electric type has a small operation load on the operator and does not require a force for operation, but is expensive.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an operating device that can reduce the operating load on the operator and reduce the cost.

In order to achieve the above object, an operating device of the present invention includes a dial, a first rotation transmission body that is provided so as to rotate together with the dial, and that has an effective engagement portion in the rotation direction, has a engaged portion corresponding to the engaging portion of the first rotation transmitting member, located inside the said first rotation transmitting member, when said first rotation transmitting member is rotated, predetermined rotational angle the the first engaging portion with the engaged portion is engaged with the rotation of the first rotation transmitting member is transmitted second rotation transmitting member in position, the first rotation transmitting member is the In the process of being rotated to a predetermined rotational angle position, a switch that responds to the rotation of the first rotation transmission body, a motor that is activated by the responsive switch, and the rotated first rotation transmission body A return spring, and the rotated object to be operated is Characterized in that so as to rotate by the rotational force given from the body and the motor.

  According to the above means, when the operator rotates the dial, the switch is actuated at the initial stage, so that the motor is activated, and the rotated object to be operated becomes the force of the operator who operated the dial. It is rotated by the driving force of the motor. Accordingly, the operation load can be reduced by the amount of the combined driving force of the motor, and the operator's force can be reduced. In addition, since the motor can be started without requiring an expensive electronic control device such as a conventional electric one, the cost can be reduced.

1 is a longitudinal front view showing an embodiment of the present invention. Longitudinal front view showing the operating state 1 Longitudinal front view showing the operating state 2 Longitudinal front view showing the operating state 3 Exploded perspective view Schematic configuration diagram showing switch configuration Circuit diagram showing electrical configuration

Hereinafter, the present invention is applied to an operating device for air conditioning operation of a vehicle, particularly for setting an air blowing mode for a passenger compartment, and one example (one embodiment) thereof will be described with reference to the drawings.
First, FIG. 5 shows the whole apparatus in an exploded state, and in order from the left side, the dial 1, the spring 2, the first rotation transmission body 3, the switch 4, the conductive cable 5, and the second rotation transmission body 6. , A pinion 7, a motor 8, a circuit unit 9, and a pulley unit 10 are illustrated.

  Among them, the dial 1 has a two-stage cylindrical cap shape having a small-diameter portion 1a on the front side and a large-diameter portion 1b on the rear side, and is provided at a plurality of locations (for example, four locations) on the peripheral wall of the large-diameter portion 1b. Each elastic piece 11 is formed by separating both sides thereof, and a connecting hole 12 is formed in each elastic piece 11.

The spring 2 is a torsion coil spring having a circular winding portion 2a at the center, one end portion 2b on the left side, and the other end portion 2c on the right side.
The first rotation transmission body 3 is ring-shaped, has a connection protrusion 13 corresponding to the connection hole 12 of the dial 1 on the outer peripheral portion, and spring hook protrusions 14 on the left and right sides of the front surface (dial 1 side). , 15. Further, a first engagement portion 16 and a second engagement portion 17 are formed separately on the left and right with protrusions protruding in the center direction at the lower portion of the inner peripheral portion of the first rotation transmission body 3. ing.

  As shown in detail in FIG. 6, the switch 4 incorporates a switching contact 18 comprising a movable contact 18a and fixed contacts 18b and 18c with which the movable contact 18a is selectively contacted, inside the switch case 4a. The actuator 4b protrudes upward from the inside of the case 4a, and the switching contact 18 indicates the movable contact 18a from the neutral state by the arrows A and B in response to the tilt of the actuator 4b indicated by the arrows A and B. And the contact of the movable contact 18a with the fixed contacts 18b and 18c is switched.

  In this case, the conductive cable 5 is a flexible flat cable, and has sufficient flexibility and sufficient length.

  The second rotation transmission body 6 has a generally disc shape, and has a shaft cylinder portion 19 having a hole having a non-circular cross section in the radial direction at the center, and springs on both left and right sides of the shaft cylinder portion 19. It has pinching protrusions 20 and 21. In addition, a recess 22 is formed in the lower portion of the second rotation transmission body 6, and the left side step portion corresponds to the first engagement portion 16 of the first rotation transmission body 3. The right stepped portion is caused to function as the second engaged portion 24 corresponding to the second engaging portion 17 of the first rotation transmission body 3. Further, a small concave portion 25 is formed in the central portion of the concave portion 22, and in addition, gear teeth 26 are formed on the outer peripheral portion of the second rotation transmission body 6.

  The pinion 7 has teeth that mesh with the gear teeth 26 of the second rotation transmission body 6 and is attached to the rotation shaft 8 a of the motor 8.

  The circuit unit 9 has a connector 28 mounted on the front side of the circuit board 27 and a connector 29 mounted on the back side. In addition, the motor drive circuit 30 shown in FIG. The motor drive circuit 30 is connected to the switching contact 18 of the switch 4 on the input side and to the motor 8 on the output side.

  The pulley unit 10 incorporates a pulley (not shown), which is an object to be rotated, inside the unit case 10a, and a unit case 10a includes a rotating shaft 31 of the pulley and a cable 32 wound around the pulley. Derived from inside to outside. Note that the rotation shaft 31 of the pulley is formed in the same shape as the hole of the shaft tube portion 19 of the second rotation transmission body 6 (the cross-sectional shape in the radial direction is non-circular). A damper (not shown) for setting an air blowing mode for the vehicle interior is connected to the tip.

  With the above configuration, as shown in FIG. 1, the rotation shaft 31 of the pulley of the pulley unit 10 is fitted into the hole of the shaft cylinder portion 19 of the second rotation transmission body 6 so that they rotate together. The pinion 7 attached to the rotation shaft 8 a of the motor 8 is meshed with the gear teeth 26 of the second rotation transmission body 6.

  The switch 4 is disposed and fixed between the first engagement portion 16 and the second engagement portion 17 of the first rotation transmission body 3, and the second rotation transmission body 3 has a second The actuator 4b of the switch 4 is positioned in the small recess 25 of the second rotation transmission body 6.

  The winding portion 2a of the spring 2 is fitted to the shaft tube portion 19 of the second rotation transmission body 6, and the winding portion 2a of the spring 2 is interposed between the shaft tube portion 19 and the spring pinching protrusions 20 and 21. The one end 2b of the spring 2 is hooked on the spring hooking protrusion 14 and the other end 2c is hooked on the spring hooking protrusion 15.

  One end of the conductive cable 5 is connected to the switch 4, and the other end of the conductive cable 5 is connected to the connector 28 of the circuit unit 9. Note that a conductive cable (not shown) on the vehicle body side is connected to the connector 29 of the circuit unit 9.

  Then, the dial 1 is attached with the first rotation transmission body 3 by engaging the connection protrusion 13 of the first rotation transmission body 3 with the connection hole 12 so that they rotate together. .

Next, the operation of the above configuration will be described.
FIG. 1 shows a state before the operation. When the operator rotates the dial 1 with his hand from this state, the first rotation transmission body 3 is connected to one end of the spring 2 as shown in FIG. 2b is pushed by the spring hooking projection 14 and rotated with the dial 1 while the one end 2b side is bent from the portion of the spring pinching projection 20 (the drawing shows the dial 1 and the first rotation transmission body 3 in the clockwise direction). A state in which the rotation operation is performed in the direction of arrow C is shown). As a result, the switch 4 is released from the small recess 25 of the second rotation transmission body 6, and the actuator 4 b is tilted in the direction of arrow A by the back of the recess 22 (the opening edge of the small recess 25).

  As a result, in the switch 4, the movable contact 18a shown in FIG. 6 is moved in the direction of arrow A, and contacts the fixed contact 18b. As a result, the motor drive circuit 30 enters an energized state in which the motor 8 is rotated in the direction of arrow C, and the motor 8 is activated by the energization and rotates in the direction of arrow C. Then, by the rotation of the motor 8, the driving force of the motor 8 is transmitted from the pinion 7 to the gear teeth 26 of the second rotation transmission body 6, and the second rotation transmission body 6 is rotated. Due to the rotation of the second rotation transmission body 6, a pulley (not shown) is rotated through a fitting structure between the shaft cylinder portion 19 of the second rotation transmission body 6 and the pulley rotation shaft 31 of the pulley unit 10. Start winding.

  When the operator who has rotated the dial 1 advances the rotation operation, the first engaging portion 16 of the first rotation transmitting body 3 hits the first engaged portion 23 of the second rotation transmitting body 6. . The position where the first engagement portion 16 hits the first engaged portion 23 is a predetermined rotation angle position of the first rotation transmission body 3, and the switch 4 performs the first rotation transmission. In the process when the body 3 is rotated to a predetermined rotation angle position, it responds to the rotation of the first rotation transmission body 3 as described above.

  In this state, when the operator further rotates the dial 1, as shown in FIG. 3, the first engagement portion 16 pushes the first engaged portion 23 to move the second rotation transmission body 6. Further rotate in the direction of arrow C. Therefore, at this time, the second rotation transmission body 6 is rotated by the force of the operator's hand and the driving force of the motor 8, and the pulley (not shown) is further rotated by the rotation, and the cable 32 is Pull further.

  Thereafter, when the operator stops rotating the dial 1, as shown in FIG. 4, the one end 2 b side of the spring 2 that has been bent until now is restored, and the first rotation transmission is performed by the restoring force. The body 3 is pushed back by the one end portion 2b of the spring 2 by the spring hooking protrusion 14, and is returned and rotated by the restoring force. As a result, the switch 4 is returned to the small recess 25 of the second rotation transmission body 6, and the tilting of the actuator 4 b due to the back of the recess 22 is released.

  As a result, the switch 4 returns to the neutral state in which the movable contact 18a is restored and separated from the fixed contact 18b. As a result, the motor drive circuit 30 enters a state where the motor 8 is de-energized, and the motor 8 is de-energized and stops rotating. Therefore, the rotation of the second rotation transmission body 6 by the motor 8 is also stopped, the rotation of a pulley (not shown) is also stopped, and the winding of the cable 32 is finished.

  After that, the return rotation operation of the dial 1 and the counterclockwise rotation operation (direction opposite to the arrow C direction) from the pre-operation state are performed symmetrically with the above-described operations. I will omit the explanation.

  Thus, in the above configuration, when the operator rotates the dial 1, the switch 4 responds at the initial stage, so that the motor 8 is activated and the pulley that is the rotating body to be operated is It is rotated by the force of the operator who operates the dial 1 and the driving force of the motor 8. Therefore, the operation load can be reduced as much as the driving force of the motor 8 is combined, and the operator's force can be reduced. In addition, it does not require an expensive electronic control device such as a conventional electric one to start the motor 8, and it can be performed to the extent that the motor drive circuit 30 is required. it can.

The present invention is not limited to an operation device for air conditioning operation of a vehicle, and can be widely applied and implemented as other dial type operation devices.
In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

  In the drawings, 1 is a dial, 2 is a spring, 3 is a first rotation transmission body, 4 is a switch, 6 is a second rotation transmission body, 8 is a motor, 10 is a pulley unit (rotated body), and 16 is a first rotation transmission body. Reference numeral 1 denotes an engaging portion, 17 denotes a second engaging portion, 23 denotes a first engaged portion, and 24 denotes a second engaged portion.

Claims (2)

Dial and
A first rotating body provided to rotate together with the dial and having an engaging portion effective in the rotating direction;
It has a corresponding engaged portion with the engaging portion of the first rotation transmitting member, located inside the said first rotation transmitting member, when said first rotation transmitting member is rotated a second rotation transmitting member, wherein the engagement rotation of the engaging portion is engaged with the first rotation transmission member to the engaged portion at a predetermined rotational angular position is transmitted,
A switch that responds to the rotation of the first rotation transmission body in the process of rotating the first rotation transmission body to the predetermined rotation angle position;
A motor activated by this actuated switch;
A spring for returning the rotated first rotation transmission body,
An operating device, wherein a rotating body to be operated is rotated by a rotational force applied from the second rotation transmission body and the motor. The operating device according to claim 1, wherein the switch is provided in the first rotation transmission body .

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