JP5962947B2 - Rotary operation device - Google Patents

Description

  The present invention relates to a rotary operation device that transmits a driving force according to a turning operation of an operation knob to an external device via a control cable, and controls the operation of the external device.

There are various types of rotary operation devices of this type. As an example, a control device for air conditioning installed in a vehicle such as an automobile will be described.
FIG. 10 shows a principle configuration diagram of an air conditioning control device mounted on a vehicle. In the case of this air conditioning control device (first conventional example), the rotary shaft 13 of the operation knob 12 disposed on the front panel 11 is shown. A bevel gear 14 is provided, and a fan gear 15 is engaged with the bevel gear 14.
The sector gear 15 is provided with a swing lever 17 pivotally supported on a support shaft 16, and one end of the swing lever 17 and the air conditioning unit 18 are connected by a control cable 19.

  In the case of the air conditioning control device described above, the turning force of the bevel gear 14 is transmitted to the sector gear 15 by the turning operation of the operation knob 12, so that the swing lever 17 pivots around the support shaft 16 and the control cable. 19 is pushed out and pushed back to control the operation of the air conditioning unit 18.

In the air conditioning control device described above, a stroke for controlling the operation of the air conditioning unit 18 is secured unless a certain length is provided in the distance from the tip of the swing lever 17 connecting the control cable 19 to the support shaft 16. Can not.
Therefore, there is a problem that the swing lever 17 becomes longer toward the depth, and a wide installation space is required.

In order to solve the above problem, an air conditioning control device (second conventional example) as shown in FIGS. 11 and 12 has already been proposed.
In this air-conditioning control device, a rotary shaft 22 of an operation knob 21 disposed on a front panel 20 is pivotally supported by a base 23, and a spur gear 24 is provided at the tip of the rotary shaft 22. Is provided.
In addition, the enlarged diameter shaft portion 22a in the middle of the rotary shaft 22 is provided with a spring 25 and a small ball 26 that are housed in a moderation hole, and a plurality of provided in the cylindrical portion of the base 23 surrounding the enlarged diameter shaft portion 22a. A concave portion is provided, and a moderation portion is provided in which the small ball 26 falls into the concave portion and gives a moderation feeling.

A swing lever 28 supported by a swing shaft 27 is disposed on the rear surface of the base 23.
As can be seen from FIG. 12, the swing lever 28 has a fan shape, and its base is pivotally supported by a swing shaft 27 so as to swing and swivel in a direction perpendicular to the rotational axis of the rotary shaft 22. It has become.
The swing lever 28 is provided with a fan-shaped inner hole 29, and an inner gear 30 made of a spur gear is provided on the arc-shaped upper inner surface of the inner hole 29. The spur gear 24 of the shaft 22 is engaged.

Further, the swinging lever 28 is provided with an extending portion 31 extending upward, and the extending portion 31 is provided with two wire connecting pins 32 and 33.
The tip of the extended portion 31 is inserted into a guide 34 provided on the rear surface of the base to guide the swing operation of the swing lever 28.
The operation of the air conditioning unit 36 is controlled via a control cable 35 connected to the wire connecting pin 32 or 33.

JP-A-11-53045

In the air conditioning control device of the second conventional example described above, the swing lever 28 swings in a direction orthogonal to the rotary shaft 22 of the operation knob 21, and the control cable 35 is pushed out and pulled back. Unlike the rocking lever 17 of the first conventional example shown in FIG.
Therefore, the air conditioning control device does not require a wide installation space.

However, in the case of the air conditioning control device of the second conventional example, the control cable 35 connected to the swing lever 28 is pulled out in the swing direction of the swing lever 28, that is, in the direction perpendicular to the rotary shaft 22 of the operation knob 21. Furthermore, it is necessary to bend the cable toward the connecting portion of the air-conditioning unit 36 disposed substantially rearward of the air-conditioning control device.
For this reason, the routing R (R) of the control cable 35 is reduced, the sliding resistance of the inner cable with respect to the outer cable is increased, and the smooth operation of the wire is hindered.
For this reason, it becomes an air-conditioning control device in which the operation feeling of the operation knob 21 is not good.

  The present invention has been made in view of the above circumstances, and an object thereof is to propose a rotary operation device suitable for an air-conditioning control device and the like, which does not require a wide depth as an installation space and has an excellent operation fill of an operation knob.

In order to achieve the above-described object, the present invention provides, as a first invention, a rotating shaft that rotates in conjunction with a rotating operation of an operation knob disposed on a front panel so as to be rotatable, and a rotating shaft provided on the rotating shaft. A second gear that meshes with the first gear, a swing lever that swings when the second gear rotates in conjunction with the rotation of the rotary shaft, and a control that controls the external device connected to the swing lever. In a rotary operation device comprising a cable, a first base for rotatably holding the rotary shaft is provided,
The rocking lever is formed as a wide frame plate having a hole portion in which an internal gear is formed as the second gear, and the first gear is meshed with the second gear in the hole portion, and its plate surface A rotary operation device is proposed in which the oscillating device is arranged so as to be swingable in a forward tilt posture so as to have a downward slope of a predetermined angle with respect to the first base .

  As a second invention, there is proposed a rotary operating device according to the first aspect, wherein the first gear is a helical gear and the second gear is a spur gear. To do.

The third aspect of the present invention, in the rotary operation device of the first or second invention described above, is fixed to the first base covers the rear side of the rocking lever, the rocking is provided a pivot shaft and a second base for holding the kinematic lever swingably provided, characterized in that the first gear of the rotating shaft in the hole of the swing lever is engaged with the second gear of the swing lever rotation Proposed operation device.

  As a fourth invention, in the rotary operation device described in the third invention, the second base is provided with a cover member that covers at least the outer peripheral side of the swing lever. Propose an operating device.

  According to a fifth aspect of the present invention, in the rotary operation device according to the third or fourth aspect, the second base is provided with a support portion that supports the rear end side of the rotary shaft. Proposed operation device.

  According to a sixth aspect of the present invention, there is provided the rotary operation device according to the third or fourth invention, wherein the second base is provided with a support shaft for supporting the rotary shaft. suggest.

The seventh invention, in any one of the rotary operation device of the third to sixth aspect, the control cable is more becomes the inner cable, and the outer cable slidably furnished the inner cable, one end of the inner cable is pre-coupled to the upper half of the inclined arrangement the said rocking lever, one end of the outer cable, the cable holding that kicked set to the second base which corresponds to the lower half portion of the swing lever Proposed is a rotary operation device characterized by being fixed to the part.

As an eighth invention, in the rotary operation device according to the fifth invention, the second base is provided with a second tilt mounting portion parallel to the forward tilt angle of the swing lever, and the first base. The rotary operating device is provided with a first tilt mounting portion that is parallel to the forward tilt angle of the swing lever and that can be joined to the second tilt mounting portion of the second base. suggest.

  In the rotary operation device according to the first aspect of the invention, the swing lever swings in conjunction with the turning operation of the operation knob. Since the swing lever swings in a forward tilting posture, one end is swung. The control cable connected to the moving lever can be pulled out rearward of the rotary operation device according to the swinging surface direction of the swinging lever, that is, the forward tilt angle direction of the swinging lever.

As a result, even when an external device for controlling the operation via the control cable is installed at or near the rear position of the rotary operation device, the control cable routing R is not reduced. The dynamic resistance does not increase, and the rotary operation device has a good operation filling.
Further, according to this rotary operation device, the swing lever does not protrude in the depth direction, so that a large installation space is not required.

  According to the rotary operation device of the second aspect of the present invention, with a simple configuration in which the first gear provided on the rotating shaft is a helical gear and the second gear provided on the swing lever is a spur gear, The swing lever can be driven.

  In the rotary operation device according to the third aspect of the present invention, the swing shaft that allows the swing lever to swing in the forward tilted posture is provided on the second base. Since the base does not have to be provided, the configuration of the first base is simplified, and the bearing configuration of the swing lever that tilts forward is simplified.

  According to the rotary operating device of the fourth aspect of the invention, since the second base is provided with the cover member that covers at least the outer peripheral side of the swing lever, the grease applied to the gear portion is not assembled during assembly work. Leakage from the second cover can be prevented from adhering to the operator, and dust adhering to the gear portion can be prevented from entering, and good operation filling can be maintained over a long period of time.

  In a rotary operation device according to a fifth aspect of the present invention, the second base is provided with a support portion for supporting the rear end side of the rotary shaft on the second base, and the rotary shaft is sandwiched between the first base and the second base. Therefore, it is not necessary to provide a claw structure on the rotating shaft to prevent the rotating shaft from coming off from the first base and falling backward. As a result, the rotating shaft can be shortened. Accordingly, the depth of the entire apparatus can be shortened, which is advantageous for downsizing of the entire apparatus.

In the rotary operation device according to the sixth aspect of the invention, the second base is provided with a swing shaft for pivotally supporting the swing lever forward and a support shaft for supporting the rear end side of the rotary shaft. It can be set as the structure assembled | attached to a 1st base in the assembly component state which assembled | attached the lever and the rotating shaft previously to the 2nd base.
In this way, the first gear and the second gear can be engaged with each other at a predetermined position, thereby facilitating the work and improving the assemblability.

According to a seventh aspect of the present invention, there is provided a rotary operating device in which one end portion of the inner cable is connected to the upper half portion of the swing lever that is forwardly inclined, and the second base portion that hits one end portion of the outer cable against the lower half portion of the swing lever The control cable can be pulled out obliquely rearward of the rotary operation device.
As a result, the control cable can be arranged without reducing the bending radius.

  In a rotary operation device according to an eighth aspect of the present invention, the second base is provided with a second tilt mounting portion parallel to the forward tilt angle of the swing lever, and the first base is parallel to the forward tilt angle of the swing lever. Since each of the first inclined mounting portions is provided and the first and second inclined mounting portions are joined and the second base is assembled to the first base, another rotation with the forward tilt angle of the swing lever changed. In the case of manufacturing the type operating device, since it can be manufactured only by changing the inclination angle of the first inclined mounting portion of the first base, it is not necessary to change the design of the second base, so that the manufacturing cost can be expected to be reduced.

It is a front view of the control device for air conditioning shown as one embodiment of the present invention. It is a side view of an above-mentioned air-conditioning control apparatus. It is a rear view of an above-mentioned air-conditioning control apparatus. It is AA sectional view taken on the line in FIG. It is a disassembled perspective view of an above-described air-conditioning control apparatus. It is the partial expanded rear view of the said air-conditioning control apparatus which removed the 2nd base and showed the internal structure. It is a partial expanded rear view of the said air-conditioning control apparatus which removed the 2nd base and the rocking | fluctuation lever and showed the internal structure. It is a partial expansion perspective view of the control apparatus for air conditioning similar to FIG. It is a perspective view of an assembly part with which the above-mentioned air conditioning control device shows the state where a rotation shaft and a rocking lever were attached to the 2nd base. It is a principle block diagram of the air-conditioning control apparatus shown as a 1st prior art example. It is sectional drawing of the control apparatus for an air conditioning shown as a 2nd prior art example. It is a partial rear view of the second conventional example.

DESCRIPTION OF EMBODIMENTS An embodiment in which a rotary operation device according to the present invention is provided as an air conditioning control device provided in a vehicle will be described with reference to the drawings.
1 is a front view of the air conditioning control device, FIG. 2 is a side view of the air conditioning control device, FIG. 3 is a rear view of the air conditioning control device, and FIG. 4 is a cross-sectional view taken along line AA in FIG. 5 is an exploded perspective view of the air conditioning control device.

In these drawings, reference numeral 41 denotes a front panel, and operation knobs 42, 43 and 44 are arranged on the front panel 41 so as to be rotatable.
Specifically, the operation knob 42 is a temperature adjustment operation knob, and the driving force according to the rotation of the operation knob 42 is transmitted to the air conditioning unit via the control cable to adjust the temperature.
The operation knob 43 is an operation knob for adjusting the air flow rate, and the rotation switch is switched according to the rotation operation of the operation knob 42 to control the rotation speed of the air blowing fan.
The operation knob 44 is an operation knob for switching the air blowing mode. The driving force according to the rotation operation of the operation knob 44 is transmitted to the air conditioning unit via the control cable, and the air blowing mode is switched.

As described above, the operation knob 43 is for switching the rotation switch, but the operation knobs 42 and 44 are provided with the cable drive mechanism to control the operation of the air conditioning unit.
Since the cable drive mechanism of the operation knob 42 and the cable drive mechanism of the operation knob 44 have the same configuration, the cable drive mechanism of the operation knob 42 will be described in detail below.

As shown in FIGS. 4 and 5, the operation knob 42 is connected to a knob connecting portion 45 a of the rotating shaft 45, and the rotating shaft 45 rotates integrally by rotating the operation knob 42. .
The rotating shaft 45 is rotatably supported through a cylindrical portion 46 a of the first base 46 fixed to the front panel 41, and the rotating shaft 45 extends in the rearward direction perpendicular to the plate surface of the front panel 41. It is.

Specifically, the periphery of the flange 45b provided near the front side of the rotary shaft 45 is fitted into a ring groove 46b formed in the hole edge of the cylindrical portion 46a of the first base 46, and further, the rotary shaft provided on the second base 47 is provided. The support shaft 47a protruding from the support portion 47k formed of a plane orthogonal to the axial direction of the shaft 45 is inserted from the rear end of the rotary shaft 45, and the rear end of the rotary shaft 45 is supported by the support portion 47k. The rotary shaft 45 is rotatably held between the first base 46 and the second base 47.
As shown in FIG. 5, the rotary shaft 45 is provided with a helical gear (second gear) 45c between the flange 45b and the tip.

  As can be seen from FIG. 5, a small sphere 49 protruded from the moderation hole 45d by the spring force of the spring 48, and a wavy shape formed on the inner surface of the cylindrical portion 46a. A moderation mechanism that provides a sense of moderation by abutting against the uneven portion 46c is provided.

On the other hand, a swing lever 50 is provided in the second base 47.
As shown in FIG. 5 and FIG. 6, the swing lever 50 is a wide frame plate having a substantially fan shape, and a hole 50a is formed along the fan shape, and an arc-shaped inner surface of the hole 50a is formed on the swing lever 50. An internal gear 50b which is a spur gear is provided.
FIG. 6 is a partially enlarged rear view of the air-conditioning control apparatus with the second base removed to show the internal configuration.

The rotary shaft 45 described above is inserted into the hole 50a of the swing lever 50, and the helical gear 45c is meshed with the internal gear 50b.
Further, a shaft hole 50c is provided in the fan-shaped base of the swing lever 50, and a swing shaft 47b provided in the second base 47 is inserted into the shaft hole 50c. The swing lever 50 has its swing shaft 47b. Further, a connecting tongue piece 50d for connecting the inner cable of the control cable 51 protrudes from the arcuate outer peripheral surface of the swing lever 50 .

On the other hand, as shown in FIGS. 2 and 4, the second base 47 is fixed to the first base 46 so as to have a downward slope of a predetermined angle.
The second base 47 is formed by integrally forming a back plate portion 47c and a surrounding cover portion 47d, and the already described support shaft 47a and swing shaft 47b protrude from the inner surface of the back plate portion 47c. It is formed. (See Figure 5)

Since the support shaft 47a is erected in the direction of the rotation axis of the rotation shaft 45, it is erected at an angle of 90 ° -θ with respect to the plate surface of the back plate portion 47c.
Is the gradient angle of the second base 47 with respect to the vertical plane of the first base 46.
Further, the swing shaft 47b protrudes in a direction perpendicular to the plate surface of the back plate portion 47c.
That is, the swing shaft 47 b is inclined in the lateral direction with respect to the rotary shaft 45.
Therefore, the swing lever 50 pivotally supported by the swing shaft 47b is attached at a forward tilt angle that is the same as the gradient angle of the back plate portion 47c of the second base, and swings in a forward tilt posture. .

The second base 47 described above is fixed to the first base 46 by screwing.
That is, as shown in FIGS. 6 to 8, the first base 46 is provided with inclined mounting portions 46 d and 46 e having the forward tilt angle of the swing lever 50, and the tip of the second base 47 is the swing lever 50. A screw hole 47e (see FIG. 9) provided in the same inclined surface as the swing shaft 47b having the inclined surface with the forward inclined angle is provided, and a small amount is provided from the front surface of the first base 46 to these inclined mounting portions 46d and 46e. A screw is inserted and screwed into the swing shaft 47b and the screw hole 47e of the second base 47 and fixed.
7 is a partially enlarged rear view of the air conditioning control device showing the internal structure with the second base and the swing lever removed, and FIG. 8 is a partially enlarged perspective view of the air conditioning control device similar to FIG. It is.

Further, when the second base 47 is fixed to the first base 46, the swing lever 50 is spirally raised from the first base 46 so as to be parallel to the back plate 47c of the second base 47. And a rail-like support portion 47f provided on the back plate portion 47c of the second base 47, and is guided so as to be swingable about the swing shaft 47b.
Note that. As can be seen from FIGS. 5 and 9, the cover 47d of the second base 47 is formed with a notch 47g having a predetermined length, and the connecting tongue 50d of the swing lever 50 is projected from the notch 47g. .
Further, when the second base 47 is assembled to the first base 46, the positioning piece 47i provided around the support shaft portion 47a is inserted into the positioning groove 46h provided around the ring portion of the first base 46, and the second base 47 is inserted. The mounting position of the base 47 is determined. (See FIGS. 5-8)

Further, a holding portion 47 h of the control cable 51 is integrally formed with the second base 47 near the notch portion 47 g.
The holding portion 47h is disposed so as to be located rearward along the swing surface of the swing lever 50 with respect to the connecting tongue piece 50d of the swing lever 50.
That is, one end portion of the outer cable of the control cable 51 is held by the holding portion 47h, and one end portion of the inner cable is connected to the connecting tongue piece 50d of the swing lever 50. The operation of the air conditioning unit is controlled.

On the other hand, when the second base 47 is assembled to the first base 46 as described above, as shown in FIG. 9, the rotary shaft 45 is attached to the support shaft 47a and the swing lever 50 is connected to the swing shaft 47b. It is convenient for assembling if the assembled parts are formed in advance and the assembled parts are assembled to the first base 46 in advance.
That is, the rotary shaft 45 and the swing lever 50 can be assembled on the second base 47, and the helical gear 45c of the rotary shaft 45 and the internal gear 50b of the swing lever 50 can be meshed at a predetermined position. Can be done easily.

In the cable drive mechanism of the operation knob 42 configured as described above, the rotation shaft 45 rotates in accordance with the rotation operation of the operation knob 42. Therefore, the internal gear 50b of the swing lever 50 is driven by the rotational driving force of the helical gear 45c. Are linked.
Therefore, since the swing lever 50 swings according to the rotation direction and the rotation amount of the operation knob 42 with the swing shaft 47b as a support shaft, the inner cable of the control cable 51 connected to the connecting tongue piece 50d of the swing lever 50 is used. It is pushed out and pulled back to adjust the temperature of the air conditioning unit.

As described above, since the holding portion 47h of the second base 47 that holds the outer cable with respect to the connecting tongue piece 50d of the swing lever 50 that connects the inner cable is in the rear position, as can be seen from FIGS. The control cable 51 can be pulled out obliquely rearward.
As a result, even if the air conditioning unit is disposed directly behind or near the air conditioning control device, the bending radius for arranging the control cable 51 does not become small, and thus the air conditioning control device has good operation filling.
In addition, since the swing lever 50 does not protrude rearward, the air conditioning control device does not require a large installation space in the depth direction.

The cable drive mechanism of the operation knob 44 has the same configuration as the cable drive mechanism of the operation knob 42 described above. As shown in FIG. 5, the rotation is held and held between the first base 46 and the second base 52. The shaft 53, the swing lever 54, the support shaft 52a provided on the second base 52, the swing shaft 52b, the holding portion 52h, the control cable 55, and the like are provided.
In FIG. 5, reference numeral 46g is a relief recess allowing the swing lever 50 to swing, reference numeral 56 is a rotary switch interlocked with the operation lever 43, and reference numeral 57 is a wiring board.

  In this embodiment, the operation knob 44 is directly connected to the rotation shaft 53, and the driving force according to the rotation operation of the operation knob 44 is directly transmitted to the rotation shaft 53. However, the present invention is not limited to this. For example, the rotation driving force of the operation knob 44 may be transmitted to the rotation shaft 53 via a gear or the like to rotate the rotation shaft 53.

  The present invention can be applied to a rotary operation device used as an air conditioning control device provided in a vehicle.

41 Front panel 42 Operation knob 45 Rotating shaft 45c Helical gear 46 First base 47 Second base 47a Support shaft 47b Oscillating shaft 47c Back plate part 47d Cover part 47g Notch part 47h Holding part 50 Oscillating lever 50a Hole part 50b Internal gear 50c Shaft hole 50d Connection tongue 51 Control cable

Claims (8)

A rotating shaft that rotates in conjunction with a rotating operation of an operation knob disposed on the front panel so as to be rotatable;
A swing lever provided with a second gear meshing with a first gear provided on the rotating shaft, and swinging by rotation of the second gear interlocking with rotation of the rotating shaft;
In a rotary operation device that is connected to the swing lever and includes a control cable that controls an external device,
A first base for rotatably holding the rotary shaft;
The rocking lever is formed as a wide frame plate having a hole portion in which an internal gear is formed as the second gear, and the first gear is meshed with the second gear in the hole portion, and its plate surface Is arranged so as to be swingable in a forward tilting posture so as to have a downward slope of a predetermined angle with respect to the first base. In the rotary operation device according to claim 1,
A rotary operation device in which the first gear is a helical gear and the second gear is a spur gear. In the rotary operation device according to claim 1 or 2,
The first is fixed to the base, it covers the rear side of the swing lever is provided with a second base provided with a pivot shaft for holding the swing lever swingably,
Rotary operation device, wherein a first gear of said rotary shaft in a bore of the pivot lever is engaged with the second gear of the swing lever. In the rotary operation device according to claim 3,
The rotary operating device, wherein the second base is provided with a cover member that covers at least the outer peripheral side of the swing lever. In the rotary operation device according to claim 3 or 4,
The rotary operating device, wherein the second base is provided with a support portion for supporting a rear end side of the rotary shaft. In the rotary operation device according to claim 3 or 4,
The rotary operating device is characterized in that the second base is provided with a support shaft for supporting the rotary shaft. The rotary operation device according to any one of claims 3 to 6,
The control cable is more becomes the inner cable, and the outer cable slidably furnished the inner cable,
One end of the inner cable is pre-coupled to the upper half of the inclined arrangement the said rocking lever, one end of the outer cable, the cable holding that kicked set to the second base which corresponds to the lower half portion of the swing lever A rotary operation device characterized by being fixed to a part. In the rotary operation device according to claim 5,
The second base is provided with a second tilt mounting portion that is parallel to the forward tilt angle of the swing lever,
The first base is provided with a first tilt mounting portion that is parallel to the forward tilt angle of the swing lever and that can be joined to the second tilt mounting portion of the second base. Type operation device.

Images