JPH0978936A - Rotational direction switching device for rotary power - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power cutting mechanism that is most rational and simple by having a rocking element, a central driving gear, right and left gears, a rocking stone, a left gear, right and left fixed gears, and a driven gear, and causing the rocking element to return to the center when the power to a motor is cut off. SOLUTION: When a central driving gear 8 is rotated to the left, a left gear 17 attached to a left gear 16 is rotated to the right, and a boss is also rotated to the right. Then a left rocking gear 18 supported on the boss is also rotated to the right. Then the gear 18, meshing with a left fixed gear 24, causes a rocking element to rotate about a shaft 2 to the left against the elastic force of a center return spring 31. Then the left gear 17 is lowered to mesh with a driven gear 25. The rocking element subsequently stops, and the gear 25 is rotated to the left as it is engaged with the left gear 17 which rotates to the right. When the gear 8 is rotated to the right, the gear 11 is rotated to the left to cause the rocking element to rotate to the right. The rocking element subsequently stops and the gear 25 is rotated to the right as it is engaged with the gear 10. Therefore, normal and reverse rotations are easily and surely achieved, and a cutting mechanism can be operated with one motor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary power forward / reverse device which can be used for a vehicle sliding door or the like.

[0002]

2. Description of the Related Art Conventionally known USP 5,046,283 specification, USP 5,138,795 specification, USP 5,
Nos. 233,789, USP5,319,880, USP5,319,881 and the like describe a rotary power forward / reverse device that can be used for a vehicle slide door or the like.

[0003]

The above-mentioned known rotary power forward / reverse device used for a vehicle slide door or the like is not limited to a forward / reverse mechanism and a motor so as to be automatically opened and closed and manually opened and closed. A power disconnecting mechanism that disconnects the link must also be installed. However, the known example is
The power cut mechanism is not explicitly described. The present invention has solved the above-described power cut mechanism with the most rational and simplest configuration. Further, the present invention has also invented a basic configuration capable of reversing the rotational power.

[0004]

OBJECT OF THE INVENTION Development of a rotary power forward / reverse device having the most rational and simplest power cutting mechanism.

[0005]

SUMMARY OF THE INVENTION Therefore, according to the present invention, there is provided an oscillating body which is returned to the center by the elastic force of a center returning spring, and a central drive gear which is attached to a central portion of the oscillating body and is normally and reversely rotated by a forward and reverse rotation motor. A right-side gear and a left-side gear that are pivotally attached to the oscillator and mesh with the central drive gear, and a coaxial right-side gear and a left-side gear that rotate together with the right-side gear by friction force. The coaxial left swing gear, the right fixed gear provided on the side of the right swing gear and engaged with the right swing gear, and the left swing gear provided on the side of the left swing gear are engaged. A left fixed gear that fits together, a right fixed gear and a passive gear that is provided below the left fixed gear and that the right gear and the left gear alternately engage against the elastic force of the center return spring, When the motor is de-energized, the oscillator will Any are the right and left side gears are engaged with the driven gear by the center returning resiliently in over the return spring is obtained by the rotational power reverse rotation device to leave from the passive gear. Further, according to the present invention, in the rotary power forward / reverse rotation device, the oscillating body is formed of a central upper arm, a right arm and a left arm. Further, the present invention is, in the above rotary power forward / reverse rotation device, the right-side gear and the left-side gear are integral with the right-side gear and a regular cylinder, and further project to a side portion from the right-side gear and the left-side gear. A boss is provided, and the swing right gear and the swing left gear are fitted to the outer periphery of the boss. Also,
According to the present invention, in the above rotary power forward / reverse rotation device, the right-side gear and the left-side gear are integral with the right-side gear and a regular cylinder, and further, a boss protruding laterally from the right-side gear and the left-side gear. The oscillating right gear and the oscillating left gear are fitted to the outer periphery of the boss, and the oscillating right gear and the oscillating left gear are elastically attached to the boss by elastic force of a spring. Is provided. Further, according to the present invention, the swinging body 1 formed of the central upper arm 4, the right arm 5 and the left arm 6 for rotating about the shaft 2 by the elastic force of the center return spring 31 to return to the center, and the fixing portion 3 for the shaft. 2, a central driving gear 8 mounted by a shaft 2a on the same axis as the central driving gear 2 and rotated forward and backward by a forward and reverse rotation motor 7, and a central driving gear 8 axially attached to the right arm 5 of the oscillator 1 by a shaft 9. A central drive gear 8 which is axially attached to the right gear 10 and the left arm 6 of the oscillating body 1 which are meshed with a shaft 16;
A left gear 17 that meshes with the boss 12 of the right gear 10.
An oscillating right gear 11 and the left gear 17 which are fitted to the outer periphery of the spring 13 by elastic force of the spring 13 and co-rotate with frictional force.
The oscillating left gear 18 that is fitted around the outer periphery of the boss 19 by the elastic force of the spring 21 and rotates together with the frictional force, and the oscillating right gear that is provided on the side of the oscillating right gear 11. 11 is engaged with the right fixed gear 23 and the left fixed gear 24 is provided on the side of the swing left gear 18 and is engaged with the swing left gear 18.
And a right gear 10 and a left gear 17, which are provided below the right fixed gear 23 and the left fixed gear 24, are alternately engaged with each other against the elastic force of the center return spring 31. When the motor 7 is de-energized, the oscillating body 1 is returned to the center by the elastic force of the center return spring 31, so that any one of the left and right side gears 10 and 17 engaged with the passive gear 25 is the passive gear. 25
This is a rotation power forward / reverse rotation device that separates more.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes an oscillating body, which has, for example, a substantially T (or inverted T) shape, and its center is axially fixed by a shaft 2 to a fixed portion 3 (FIG. 4). As an example, the oscillating body 1 includes a central upper arm 4 protruding upward from the shaft 2 portion, a right arm 5 protruding rightward from the shaft 2 portion, and a left arm 6 protruding leftward from the shaft 2 portion. Have.

A central drive gear 8 rotated by a motor 7 is mounted on the shaft 2. In the embodiment, as shown in FIG. 4, the central drive gear 8 is axially attached to another shaft 2a provided in the fixed portion 3, but the shaft 2 and the shaft 2a may have a continuous integral structure. A right shaft 9 is provided at the tip of the right arm 5 of the oscillating body 1, and a right gear 10 that meshes with the central drive gear 8 is mounted on the right shaft 9. Further, an oscillating right gear 11 is axially attached to the right shaft 9 by overlapping with the right gear 10.

The right gear 10 and the swing right gear 11
When the right gear 10 rotates, the swinging right gear 11
Boss 12 of the right gear 10 is formed to project in the axial direction so as to rotate together by frictional rotation, the boss 12 is rotatably fitted on the right shaft 9, and the oscillating right gear 11
In order to give a certain amount of frictional force to the outer circumference of the boss 12, an elastic landing portion 14 that is elastically attached to the boss 12 by a spring 13 is fitted in the swing right gear 11. In the embodiment, the swinging right gear 1 is provided in order to facilitate sliding of the landing portion 14.
A cylindrical body 15 is formed in a part of the cylindrical body 1, a spring 13 is elastically mounted in the cylindrical body 15, and the spring 13 presses the elastically attaching portion 14.

A left side shaft 16 is provided at the tip of the left side arm 6 of the oscillating body 1, and a left side gear 17 which engages with the central drive gear 8 is pivotally attached to the left side shaft 16. Also, the left shaft 16
The oscillating left gear 18 is axially attached to the left gear 17 by overlapping with the left gear 17. The left gear 17 and the oscillating left gear 18 are formed by extending the boss 19 of the left gear 17 axially so that when the left gear 17 rotates, the oscillating left gear 18 rotates with frictional rotation. The boss 19 is projected from the left gear 17, and the swing left gear 18 is fitted to the outer periphery of the boss 19. In addition, 20 is a cylinder formed in a part of the swing left gear 18, 21 is a spring provided in the cylinder 20, and 22 is a boss 1.
It is an impact part that is attached to 9.

A right fixed gear 23 having an arc centered on the shaft 2 fixed to the fixed portion 3 so that the right swing gear 11 is engaged is provided on a side portion of the right swing gear 11. Similarly, a left fixed gear 24 having an arc centered on the shaft 2 with which the left swing gear 18 is engaged is provided on the side of the left swing gear 18. Reference numeral 25 is a passive gear provided in the lower portion thereof, and 26 is its shaft. The right gear 10 and the left gear 17 are alternately engaged with the passive gear 25 to rotate the passive gear 25 in the forward and reverse directions.

Reference numeral 26 is a center return spring, which is used for the oscillating body 1.
The base portion is wound around a boss 27 provided on the central upper arm 4 of the center upper arm 4, and the tip bifurcated portion 28 is a protrusion 2 on the upper end of the central upper arm 4.
After sandwiching 9, the engaging portion 30 of the fixed portion 3 is sandwiched from both sides. When the motor 7 is de-energized, the central drive gear 8 and the gears meshing with the central drive gear 8 do not rotate at all, so that the oscillating body 1 does not oscillate, and the center return spring 31 elastically returns to the center. Passive gear 2 for both 10 and 17
5, the passive gear 25 becomes free to rotate, and for example, in the case of an automatic opening / closing slide door, it can be manually opened / closed. In addition, 32 is a worm gear and 33 is a worm wheel.

[0012]

When the central drive gear 8 is rotated counterclockwise by the motor 7 via an arbitrary power transmission mechanism, the left gear 17 pivotally mounted on the left shaft 16 engaged with the central drive gear 8 is rotated clockwise. Since the left gear 17 and the boss 19 have an integrated structure, the boss 19 also turns to the right. The oscillating left gear 18 supported by the boss 19 of the left gear 17 is elastically moved by the spring 21 so that the elastic portion 2
Since 2 is elastically attached to the boss 19, the swinging left gear 18 rotates right together with the boss 19 due to the frictional force between the elastic attachment portion 22 and the boss 19. When the oscillating left gear 18 rotates to the right, the oscillating left gear 18 meshes with the left fixed gear 24 fixed to the fixing portion 3, so that the oscillating left gear 18 resists the elasticity of the center return spring 31. As shown in FIG.
As shown in FIG. 3, the left gear 17 is lowered and meshed with the passive gear 25. When the left gear 17 meshes with the passive gear 25, the oscillating body 1 stops without further turning to the left, and the passive gear 25 engages with the left gear 17 that rotates to the right while the motor 7 continues to rotate. It turns to the left depending on the combination. In this way, when the central drive gear 8 is rotated counterclockwise by the motor 7, the motor 7 and the passive gear 25 are connected to each other and the passive gear 25 also rotates counterclockwise.

On the contrary, when the central drive gear 8 is rotated to the right by the motor 7 via an arbitrary power transmission mechanism, the right gear 10 pivotally mounted on the right shaft 9 engaged with the central drive gear 8 is Since the right gear 10 and the boss 12 are integrally rotated to the left, the boss 12 is also rotated to the left. Since the rocking right gear 11 supported by the boss 12 has the elastic part 14 elastically attached to the boss 12 by the elastic force of the spring 13, the oscillating right gear 11 is elastically moved by the frictional force between the elastic part 14 and the boss 12. Rotate counterclockwise with boss 12. When the oscillating right gear 11 rotates counterclockwise, the oscillating right gear 11 meshes with the right fixed gear 23 fixed to the fixing portion 3, so that the oscillating right gear 11 resists the elasticity of the center return spring 31. The oscillating body 1 is rotated right about the shaft 2 and the right gear 10 is lowered to mesh with the passive gear 25. When the right gear 10 meshes with the passive gear 25, the oscillating body 1 cannot rotate any more to the right and stops, and the passive gear 25 engages with the right gear 10 that rotates counterclockwise while the motor 7 continues to rotate. Turn right according to the combination. In this way, when the central drive gear 8 is rotated to the right by the motor 7, the motor 7 and the passive gear 25 are connected and the passive gear 25 also rotates to the right.

After rotating the passive gear 25,
When the motor 7 is de-energized, the oscillator 1 returns to the center by the elastic force of the center return spring 31, the right gear 10 or the left gear 17 is separated from the passive gear 25, and the connection state between the motor 7 and the passive gear 25 is changed. It will be canceled. That is, the motor 7
When the central drive gear 8 and the gears meshing with the central drive gear 8 are stopped by turning off the power supply to the center drive gear 8, the force for oscillating the oscillating body 1 about the shaft 2 disappears. 1 to the neutral position in FIG.
Alternatively, the left gear 17 is separated from the passive gear 25, and the connection state between the motor 7 and the passive gear 25 is released. in this way,
When both the left and right gears 10 and 17 are disengaged from the passive gear 25, the passive gear 25 can be idle independently, so that there is little resistance when manually rotating the passive gear 25 side, and it can be easily rotated. it can. This mechanism
For example, it can be applied to an automatic opening / closing slide door of an automobile. In this case, when the passive gear 25 side is connected to the slide door and the motor 7 is rotated, the slide door opens or closes depending on the rotation direction. When the sliding door is manually opened or closed when the motor 7 is stopped, the passive gear 25 only rotates and the subsequent mechanism on the motor 7 side does not move. , It can be opened and closed with less resistance.

[0015]

According to the present invention, the oscillating body 1 is returned to the center by the elastic force of the center return spring 31, and the central drive gear 8 which is attached to the central portion of the oscillating body 1 and is normally and reversely rotated by the forward and reverse rotation motor 7. , A right gear 10 and a left gear 17 which are axially attached to the rocking body 1 and mesh with the central drive gear 8, and a coaxial rocking right gear 1 which co-rotates with the right gear 10 by a friction force.
1 and the left-side gear 17, and the coaxial left-right gear 18 that rotates together by frictional force, the right-side fixed gear 23 provided on the side of the right-side swing gear 11, and the right-right gear 11 engaged with the right-side gear 17. The left fixed gear 24 provided on the side of the swing left gear 18 and engaged with the swing left gear 18, and the right fixed gear 23 and the left fixed gear 24 provided below the right fixed gear 23 and the left fixed gear 24. The gear 17 comprises a passive gear 25 which is alternately engaged against the elastic force of the center return spring 31, and when the motor 7 is de-energized, the oscillating body 1 moves the center return spring 3.
The passive gear 2 is returned to the center by the elasticity of 1.
Since one of the left and right gears 10 and 17 engaged with 5 is a rotation power forward / reverse device that disengages from the passive gear 25, the forward / reverse rotation motor 7 is energized to drive the central drive gear 8 Is rotated forward, the right gear 10 axially attached to the oscillator 1 is rotated, and the oscillating right gear 11 that rotates together with the right gear 10 by a frictional force is rotated. Depending on the combination, the right gear 10 can be lowered to engage the passive gear 25, and when the forward / reverse rotation motor 7 is energized to rotate the central drive gear 8 in the reverse direction, the left gear 17 pivotally attached to the oscillator 1 is rotated. Then, by rotating the swinging left gear 18 that rotates with the left gear 17 by frictional force, the left gear 17 can be lowered by the engagement with the left fixed gear 24 and can be engaged with the passive gear 25. Can be rotated forward and backward and the motor 7 can be turned off. When, by the oscillator 1 to the center return resiliently center the return spring 31, since the right wheel 10 and the left side gear 17 are not both engagement can cut off the power transmission. In addition, the power cutting mechanism can be operated by the power of one motor 7, and the overall thickness can be reduced. Further, according to the present invention, in the above rotary power forward / reverse rotation device, since the rocking body 1 is formed of the central upper arm 4, the right arm 5 and the left arm 6, the center return spring 31, the right gear 10 and the left gear. 17 can be easily attached. Further, the present invention is the rotation power forward / reverse rotation device, wherein the right gear 10 and the left gear 17 are integral with the right gear 10 and the left gear 17, and are regular cylinders.
Further, bosses 12 and 19 projecting laterally from the right gear 10 and the left gear 17 are provided, and the oscillating right gear 11 and the oscillating left gear 18 are fitted around the bosses 12 and 19. Therefore, friction transmission can be facilitated. Also,
In the rotation power forward / reverse rotation device of the present invention, the right-side gear 10 and the left-side gear 17 are integral with this,
In addition, the bosses 12 and 19 projecting laterally from the right gear 10 and the left gear 17 are provided, and the oscillating right gear 11 and the oscillating left gear are provided on the outer periphery of the bosses 12 and 19. 18 are fitted to the oscillating right gear 11 and the oscillating left gear 18, and the springs 13 and 2 are attached to the bosses 12 and 19.
Since the elastic units 14 and 22 elastically elastically elastically mounted are provided, the rocking right gear 11 and the rocking left gear 18 can be easily rocked. Further, according to the present invention, the swinging body 1 formed of the central upper arm 4, the right arm 5 and the left arm 6 for rotating about the shaft 2 by the elastic force of the center return spring 31 to return to the center, and the fixing portion 3 for the shaft. Two
A central drive gear 8 mounted by a shaft 2a on the same axis and rotated forward and reverse by a forward / reverse rotation motor 7; and a central drive gear 8 axially attached to the right arm 5 of the oscillator 1 by a shaft 9. The right gear 10 that meshes with the left gear 6 of the rocking body 1 and the left gear 17 that is rotatably mounted on the shaft 16 by the shaft 16 and meshes with the central drive gear 8; The rocking right gear 11 and the left gear 17 are fitted together so as to be elastically fitted and co-rotate at the outer periphery of the boss 19 of the left gear 17 so as to be elastically fitted by the spring 21. Swinging left gear 18, a right fixed gear 23 provided on the side of the swinging right gear 11 and engaged with the swinging right gear 11, and the swinging gear provided on the side of the swinging left gear 18. Left fixed gear 24 with which the left gear 18 engages
And a right gear 10 and a left gear 17, which are provided below the right fixed gear 23 and the left fixed gear 24, are alternately engaged with each other against the elastic force of the center return spring 31. When the motor 7 is de-energized, the oscillating body 1 is returned to the center by the elastic force of the center return spring 31, so that any one of the left and right side gears 10 and 17 engaged with the passive gear 25 is the passive gear. 25
Since the rotation power forward / reverse rotation device is further separated, not only the above-mentioned effects can be expected, but also the implementation is easy.

[Brief description of drawings]

FIG. 1 is a front view of a main part in a neutral state.

FIG. 2 is a front view of a main part of a state where an oscillating body is rotated by the power of a motor.

FIG. 3 is a front view of the mechanism of FIG. 2 with an oscillating body removed.

FIG. 4 is a sectional view of a main part.

FIG. 5 is a partially cutaway plan view of the oscillating gear.

FIG. 6 is a drive transmission diagram of a motor.

[Explanation of symbols]

1 ... Oscillator, 2 ... Shaft, 3 ... Fixed part, 4 ... Central upper arm, 5 ... Right arm, 6 ... Left arm, 7 ... Motor, 8
... Central drive gear, 9 ... Right shaft, 10 ... Right gear, 11 ...
Rocking right gear, 12 ... boss, 13 ... spring, 14 ... elastic part,
15 ... Cylindrical body, 16 ... Left shaft, 17 ... Left gear, 18 ... Oscillating left gear, 19 ... Boss, 20 ... Cylindrical body, 21 ... Spring, 22
… Slipping part, 23… Right fixed gear, 24… Left fixed gear, 25
... Passive gears, 26 ... Shafts, 27 ... Bosses, 28 ... Tip bifurcations, 29 ... Projections, 30 ... Engaging sections, 31 ... Center return springs, 32 ... Worm gears, 33 ... Worm wheels.

Claims (5)

[Claims] 1. An oscillating body that returns to the center by the elastic force of a center return spring, a central drive gear that is attached to the central portion of the oscillating body and is rotated forward and reverse by a forward-reverse rotation motor, and a shaft mounted on the oscillating body A right-side gear and a left-side gear that mesh with the central drive gear, a coaxial oscillating right gear that co-rotates with the right-side gear by frictional force, and a coaxial oscillating left gear that co-rotates with the left-side gear by frictional force, A right fixed gear that is provided on the side of the moving right gear and that engages the oscillating right gear, and a left fixed gear that is provided on the side of the oscillating left gear that engages the oscillating left gear, and the right fixed gear The right gear and the left gear, which are provided below the gear and the left fixed gear, are passive gears that are alternately engaged against the elastic force of the center return spring, and the oscillator is cut off when the motor is de-energized. Center return spring returns to center By so doing, one of the left and right side gears that has been engaged with the passive gear is disengaged from the passive gear. 2. The rotation power forward / reverse rotation device according to claim 1, wherein the oscillating body is formed of a central upper arm, a right arm, and a left arm. 3. The right-side gear and the left-side gear according to claim 1, wherein the right-side gear and the left-side gear are integral with each other and are regular cylinders.
Further, a rotative power forward / reverse rotation device in which a boss projecting laterally from the right gear and the left gear is provided, and the oscillating right gear and the oscillating left gear are fitted around the boss. 4. The right-side gear and the left-side gear according to claim 1, which are integral with the right-side gear and the left-side gear, and which are regular cylinders,
Further, a boss protruding more laterally than the right gear and the left gear is provided, and the oscillating right gear and the oscillating left gear are fitted around the boss, and the oscillating right gear and the oscillating left gear are fitted. A rotation power forward / reverse rotation device in which a gear is provided with an elastic attachment portion that elastically attaches to the boss by a spring force. 5. An oscillating body 1 formed of a central upper arm 4, a right arm 5, and a left arm 6 and rotating centering on an axis 2 by the elastic force of a center return spring 31 to return to the center.
A central drive gear 8 which is attached to a fixed portion 3 by a shaft 2a having the same axis as the shaft 2 and is normally and reversely rotated by a forward and reverse rotation motor 7, and a right side arm 5 of the rocking body 1 is axially attached by a shaft 9. A right gear 10 that meshes with the central drive gear 8 and a left gear 17 that is axially attached to the left arm 6 of the oscillator 1 by a shaft 16 and that meshes with the central drive gear 8; and a boss 12 of the right gear 10. The outer circumference of the boss 19 of the oscillating right gear 11 and the left gear 17 is fitted to the outer circumference by elastic force of the spring 13 and co-rotates with frictional force so that it is elastically fitted by the spring 21. And the left fixed gear 23 provided on the side of the right swing gear 11 and the right fixed gear 23 engaged with the right swing gear 11 and the left swing gear 18 side. Left fixed gear 24, which is provided in the section and engages with the swinging left gear 18. The right fixed gear 23 and the left fixed gear 24, which are provided below the right fixed gear 23 and the left fixed gear 24, are composed of a passive gear 25 that alternately engages against the elastic force of the center return spring 31. When the motor 7 is de-energized, the oscillating body 1 moves to the center return spring 31.
The passive gear 25 returns to the center by the elasticity of
One of the left and right side gears 10 and 17 engaged with the drive gear 25 is disengaged from the passive gear 25.