KR100438261B1 - Window regulator apparatus - Google Patents

Abstract

An object of the present invention is to seal the components constituting the deceleration mechanism in the window lifting device for lifting the window to prevent foreign substances or water droplets from entering, thereby preventing dust, water, and freeze resistance. It is to improve the 性.

An worm wheel 41 that is rotationally driven, an arm 5 that is connected to the output shaft 42 arranged concentrically with the rotation wheel, and rotates to lift the window glass, and decelerates the rotation of the worm wheel 41 to output shaft 42. A deceleration mechanism (4) for transmitting to the outer gear (43) comprising an inner toothed ring gear eccentrically rotated by a worm wheel (41), and the outer gear (43); An inner gear 45 meshed with and concentrically supported by the output shaft 42, and a transmission disk 44 for transmitting the rotational force of the outer gear 43 to the inner gear 45 in the X and Y directions. . The worm wheel 41, the outer gear 43, the inner gear 45 and the transmission disk 44 are embedded in a sealed housing 2 consisting of a base 201 and a cap 202. The tip of the output shaft 42 protrudes from the housing 2 and is connected to the arm 5. Since foreign matter such as dust or water droplets do not penetrate inside the housing 2, a highly reliable window elevating device having excellent dust resistance, water resistance, and freezing resistance can be obtained.

Description

Window lifting device {WINDOW REGULATOR APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device for elevating a window glass in order to open and close a window of a vehicle such as an automobile.

As a window lift device for automobiles, a so-called single arm type window lift device is proposed, which swings an arm connected to the window glass up and down to lift the window glass. The conventional single arm type window elevating device has an arc-shaped sector gear that rotates in engagement with a pinion rotated by a motor or the like, and rotates the arm connected to the sector gear together with the sector gear to open the window glass connected to the tip of the arm. It is comprised so that it may move up and down along vehicle body openings, such as a window of an automobile. In such a window raising and lowering device, when a device having a long moving range for lifting and lowering the window glass is formed, the diameter and length of the sector gear are increased, resulting in a problem that the single arm type window lifting and lowering device is enlarged.

In order to solve this problem, the applicant of the present application first developed a single arm type window elevating device using a cyclo deceleration mechanism, thereby realizing miniaturization of the window elevating device. In the proposed window elevating device, a cyclone reduction mechanism including an outer gear (ring gear) and an inner gear (planetary gear) is provided, and the inner gear is decelerated and rotated by rotationally driving an inner gear engaged with the outer gear by a motor or the like, By engaging an arm connected to the windowpane to this inner gear, the arm can be rotated at a reduced speed to move the windowpane.

However, in this developed window elevating device, since the inner gear is eccentrically rotated in the outer gear, in order to remove the rotational force of the inner gear and rotate the arm, a gap is provided between the inner gear and the arm to allow eccentric rotation. There is a need for both, and as a result, it becomes difficult to embed the inner gear in a sealed state in the apparatus. Therefore, foreign matters such as dust and the like may enter the device from the outside through the gaps, and foreign matters may get in between the gears and cause gear breakage. In addition, water droplets penetrate into the device from the outside through the air gap, which causes rust on each gear, or freezes in the winter, making the rotation of each gear impossible, resulting in deterioration of the reliability of the elevating device or shortening of life. have.

SUMMARY OF THE INVENTION An object of the present invention is to provide a window elevating device which improves dust resistance, water resistance and freezing resistance by sealing an outer gear or an inner gear in a window elevating device to prevent foreign matter or water droplets from entering.

1 is a front view of a first embodiment of a window elevating device of the present invention.

FIG. 2 is a partially exploded perspective view of the window elevating device of FIG. 1. FIG.

3 is a longitudinal sectional view of the assembled state of the window elevating device of FIG. 1;

4 is a cross-sectional view taken along the line AA of FIG.

5 is a cross-sectional view taken along the line BB of FIG.

6 is a cross-sectional view taken along line CC of FIG. 3.

7 is a partially exploded perspective view of a second embodiment of the window elevating device of the present invention.

FIG. 8 is a longitudinal sectional view of the assembled state of the window elevating device of FIG. 7. FIG.

9 is an exploded perspective view of another embodiment of the stopper;

10 is a plan view of the assembled state of the stopper of FIG. 9;

<Explanation of symbols for the main parts of the drawings>

1: window hoist

2: housing

3: electric motor

4: deceleration mechanism (cyclo deceleration mechanism)

5: arm

6: pane

7: operation handle

31: rotation axis of the motor

32: worm

41: worm wheel

42: output shaft

43: outer gear

44: delivery disk

45: inner gear

46: stopper

47: C ring

48: rotating operation shaft

49: eccentric rotating plate

201: Base

202: cap

222: X side guide part

414, 492: eccentric ring portion

432: Y side guide part

The present invention relates to a rotating body that is rotationally driven, an arm that is connected to an output shaft disposed concentrically with the rotating body, and rotates to lift a window glass of a vehicle such as an automobile, and decelerates the rotating operation of the rotating body to the output shaft. A window elevating device having a deceleration mechanism for transmitting, wherein the deceleration mechanism is engaged with an outer gear made of an inner toothed ring gear that is eccentrically rotated in accordance with a rotational drive of the rotating body, and is engaged with the outer gear inside the outer gear. An inner gear that is bitten and axially supported on the output shaft, wherein the rotating body, the outer gear and the inner gear are embedded in a sealed housing consisting of a base and a cap, the leading end of the output shaft protruding from the housing In addition, the front end portion is characterized in that connected to the arm. Here, it is preferable to have a transmission disk which transmits the rotational force of the said outer gear to the said inner gear with respect to the X direction which is one radial direction, and the Y direction which is another radial direction orthogonal to this direction.

As the first aspect of the present invention, the rotating body is integrally installed with a worm wheel that is rotationally driven by an electric motor provided integrally with the housing, and the outer gear is accommodated in a circular recess eccentric to the output shaft. The configuration is provided with an eccentric ring. Moreover, as a 2nd aspect of this invention, the said rotating body is connected to the rotation operation shaft which one end part protruded from the said housing in the axial direction opposite to the said output shaft, and the said outer gear in the circular recess eccentric with respect to the said output shaft. It is provided with an eccentric ring that accommodates the one end of the rotation operation shaft is configured to be connected to the operation handle driven to rotate by manual operation.

According to the window elevating device of the present invention, the outer gear is eccentrically rotated by the rotational operation of the rotating body, the inner gear engaged with it is decelerated and rotated, outputs the reduced rotational force to the output shaft and rotates the arm to raise and lower the window glass. Make it possible. At this time, since the rotational force of the outer gear is divided in the X direction and the Y direction by the transmission disk and transmitted to the inner gear, the inner gear is driven to rotate at almost uniform angular speed, thereby enabling smooth lifting of the window glass. In addition, by embedding the rotating body, the outer gear, the inner gear, and the transmission disk in the sealed housing, it is possible to prevent the ingress of foreign matter such as dust or water droplets, and improve the dust resistance, water resistance and freezing resistance.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to drawings. 1 is a front view of a first embodiment of a window elevating device of the present invention. This window elevating device is configured as a so-called power window device for elevating the window glass by an electric motor. The housing 2 of the window elevating device 1 is fixed to a vehicle body of a vehicle not shown, and the electric motor 3 is attached to the housing 2. The housing 2 is provided with fixing bolts 21 at a plurality of portions, and the housing 2 is fixed to the vehicle body by a nut or the like in the fixing bolt 21. In the housing 2, a deceleration mechanism composed of a cyclo deceleration mechanism is incorporated as described later, and a proximal end 51 of the arm 5 is attached to the output side of the deceleration mechanism. The arm 5 is configured to reciprocate in a required angle range around the proximal end 51, and the distal end 52 has a portion of the window glass 6 that can move along a vehicle body opening such as a window of an automobile. Is connected, and the window glass 6 moves up and down by the rotation of the arm 5, and is comprised. As this connection structure, the circular rotor 53 is connected to the front end 52 of the arm 5 here, and the circular rotor 53 is engaged with the long hole rail 61 provided in the window glass 6. Thus, when the arm 5 is rotated, the circular rotor 53 slides in the long hole rail 61, thereby converting the rotational movement of the arm 5 into the linear movement of the window glass 6, so that the window glass 6 The structure which raises and lowers) is used. In addition, although the circuit component, electrode terminal, etc. for driving the said electric motor 3 are provided in the said housing 2, the description is abbreviate | omitted here.

FIG. 2 is a partially exploded perspective view showing the structure in the housing 2 shown in FIG. 1, and FIG. 3 is a longitudinal sectional view of the configuration attached to the vehicle body panel P in its assembled state. 4 to 6 are cross-sectional views taken along line AA, line BB, and line CC of FIG. 3, respectively, but in these drawings, portions which characterize the present invention are exaggerated. 2 to 6, the housing 2 includes a base 201 formed with the small diameter cylindrical portion 203 and the large diameter cylindrical portion 204 side by side in the axial direction, and the upper opening edge of the base 201. The periphery is mounted by caulking or the like and is composed of a disc-shaped cap 202 for partitioning a flat circular space between the base 201 in a sealed state. The deceleration mechanism 4 is incorporated in the housing 2 as described above. That is, the hollow boss 205 is formed at the center position in the base 201, and the hollow shaft portion stiffened by radial ribs 412 in the small diameter cylindrical portion 203 around the hollow boss 205. A worm wheel 41 having a 411 is coaxially supported rotatably in the axial circumferential direction. In addition, a worm 32 mounted on the rotary shaft 31 of the electric motor 3 mounted on the base 201 is disposed in the base 201 and provided on an outer circumferential surface of the worm wheel 41. In combination with the external gear 413, the worm wheel 41 is driven to rotate around the hollow boss 205 by the worm 32 when the electric motor 3 is driven and the rotary shaft 31 is rotated. . In addition, the worm wheel 41 is integrally provided with an eccentric ring portion 414 disposed in the large-diameter cylindrical portion 204 of the base 201. The outer circumferential surface of the eccentric ring portion 414 is formed concentrically with respect to the hollow boss 205 and the hollow shaft portion 411, but the inner circumferential surface is eccentric with respect to the hollow boss 205 and the hollow shaft portion 411. It is formed.

An output shaft 42 is inserted and inserted into the hollow boss 205, and the proximal end 51 of the arm 5 is formed at a rectangular fitting portion 421 formed at an end of the outer surface side of the base 201. It fits in the fitting hole 511 opened with the opening, and is integrally connected with the arm 5 in the axial circumferential direction. In addition, a concave portion 422 is formed at an end surface of the output shaft 42 toward the base opening side, and the concave portion 422 is fitted to the protrusion 221 provided on the inner surface of the cap 202. The bearing is supported. In addition, a pair of X-side guides are formed on the inner surface of the cap 202 so as to face each other in a direction perpendicular to this direction (hereinafter referred to as X direction) along one radial direction (hereinafter referred to as Y direction). The part 222 is integrally formed.

The outer gear 43 is embedded in the interior of the eccentric ring portion 414 of the worm wheel 41 and the space surrounded by the cap 202. The outer gear 43 is formed in an annular shape having an outer shape corresponding to the eccentric circle of the eccentric ring portion 414, and is formed as an inner toothed ring gear having inner teeth 431 formed along the inner circumference thereof. In addition, a pair of Y-side guide portions 432 opposed to the cap 202 of the outer gear 43 in the Y direction along the X direction are integrally formed. The X-side guide portion 222 of the cap 202 and the Y-side guide portion 432 of the outer gear 43 are disposed on the same surface, and the X-side guide portion 222 and the Y-side are In a region surrounded by the guide portion 432, a rectangular disk-shaped transmission disk 44 is built in, and both edges of the X-direction of the transmission disk 44 in sliding direction are in sliding contact with the X-side guide portion 222. , Both side portions in the Y-direction are in sliding contact with the Y-side guide portion 432. Further, a center hole 441 of a diameter dimension sufficient to insert the output shaft 42 through the center of the transfer disk 44 is open.

Inside the outer gear 43, the inner gear 45 and the stopper 46 are arranged side by side in the axial direction. The inner gear 45 is formed as a spur gear having outer teeth 451 along its outer circumferential surface with an outer diameter dimension of a diameter smaller than the inner diameter of the outer gear 43, and in part of the circumference of the outer gear 43 Engaging with the inner tooth 431, and engaging with the end 423 of the base opening side of the output shaft 42 in a non-circular hole (here, a circular hole in which both edges are cut off) 452 provided at the center thereof; In addition, the C ring 47 is prevented from falling out so as to rotate integrally with the output shaft 42. In addition, the stopper 46 is formed as an annular gear having an outer tooth 461 on its outer circumferential surface with the same outer diameter as the inner diameter of the outer gear 43, so that the inner tooth 431 of the outer gear 43 is formed. Meshed with the outer gear 43 to rotate integrally with the outer gear 43. In addition, a part of the circumference of the inner circumferential surface of the stopper 46 is formed with a stopper piece 462 protruding in the inner diameter direction, and a part of the circumference of the inner gear 45 protrudes in the axial direction toward the stopper 46 side. A stopper pin 453 is formed so that the stopper pin 453 collides with the stopper piece 462 in the circumferential direction in accordance with the rotational operation of the inner gear 45.

According to the window elevating device of the above structure, the cyclone deceleration mechanism which comprises the deceleration mechanism 4 by the output shaft 42, the outer gear 43, and the inner gear 45 is comprised. Therefore, when the electric motor 3 is driven and the worm wheel 41 rotates around the hollow boss 205 via the worm 32, the outer gear 43 inside the eccentric ring portion 414 integrated therewith. The torque is transmitted to). Accordingly, the outer gear 43 is eccentrically rotated around the hollow boss 205 while being engaged with the inner gear 45 at a portion of the circumference, and the inner gear 45 is connected to the output shaft 42 by this eccentric rotation. It rotates integrally and the rotational force is output to the output shaft 42. FIG. That is, the outer gear 43 revolves around the inner gear 45, and the inner gear 45 rotates integrally with the output shaft 42. Here, when the teeth of the inner gear 45 are ZA and the teeth of the outer gear 43 are ZB, the rotation speed of the inner gear 45 when the outer gear 43 is rotated once, that is, the output shaft 42 Rotational speed N)

N = (ZA-ZB) / ZA

Becomes Therefore, by setting the teeth number ZA of the inner gear 45 and the teeth number ZB of the outer gear 43 suitably, the deceleration mechanism by the cycle of arbitrary reduction ratios is implement | achieved.

At this time, since the transmission disk 44 is in sliding contact with the Y-side guide portion 432 at the outer gear 43, the transmission disk 44 can slide only in the X direction, and the transmission Since the disk 44 is in sliding contact with the X-side guide portion 222 formed in the cap 202 and can only slide in the Y direction, the rotational force of the worm wheel 41 is negligible in the X and Y directions, respectively. It is transmitted to the outer gear 43 while being divided into enemies. Therefore, the eccentric ring portion 414 and the outer gear 43 of the worm wheel 41 have a axial coupling structure close to the so-called Oldham coupling via the transmission disk 44, and consequently the outer gear The rotational angular velocity of the inner gear 45 rotated by 43 becomes substantially constant, so that the output shaft 42 and the arm 5 connected thereto can be rotated at an almost constant angular velocity. As a result, the forward and reverse rotations of the electric motor 3 cause the arm 5 to reciprocate at a substantially constant angular speed, thereby moving the window glass 6 connected to the distal end portion 52 of the arm 5. By moving in the vertical direction along the window of the car can be opened and closed.

On the other hand, in the lifting operation of the window glass 6 by the arm 5, as mentioned above, the inner gear 45 rotates inside the outer gear 43, but at this time, the shaft from the side surface of the inner gear 45 is rotated. The stopper pin 453 protruding in the direction moves along the inner circumferential surface of the outer gear 43. Then, when the inner gear 45 rotates in one direction and rotates to a predetermined rotation position, as shown in FIG. 5, the stopper pin 453 of the stopper piece 462 provided on the inner circumferential surface of the stopper 46. It collides with one side. Since the stopper 46 is engaged with the outer gear 43 and is integral with the outer gear 43 in the rotational direction, at the time when the stopper pin collides with the stopper piece 462, the outer gear 43 and the inner gear afterwards. The rotational operation of 45 is regulated, and therefore the rotation of the arm 5 is also regulated. Accordingly, by setting the positions of the stopper pins 453 and the stopper fragments 462 corresponding to the positions where the downward movement of the window glass 6 is to be restricted, the position of rotation of the arm 5 by the window lifting device itself, That is, the downward movement position of the window glass 6 can be regulated. Therefore, when the window elevating device is applied to a vehicle, the downward movement position of the window glass 6 can be regulated even if no restrictive member for regulating the downward movement of the window glass 6 is provided on the vehicle body side of the vehicle. The car body structure of the car does not become complicated.

In addition, since the stopper 46 can be engaged at any circumferential position with respect to the outer gear 43, by changing the circumferential position, the circumferential position of the stopper piece 462 provided in the stopper 46 is changed. By changing the rotation control positions of the inner gear 45 and the outer gear 43, the rotation position of the arm 5, that is, the window glass 6, can change the regulation position of the downwardly moving side. Therefore, even when the size of the window is different according to the difference of the vehicle model of the vehicle, it is possible to cope with this simply by adjusting the circumferential position when the stopper 46 is built in, and in any window size, the appropriate downward movement position of the window glass. Can be regulated.

Here, the stopper piece 462 provided in the stopper 46 is installed in two places with different circumferential directions, and one stopper piece has the stopper pin 453 from one direction when the inner gear 45 is rotated in one direction. When the stopper piece of the other side collides and the stopper pin 453 is configured to collide from the other direction when the inner gear 45 is rotated in the opposite direction, the respective stopper pieces rotate in both rotation directions of the inner gear 45, respectively. You can regulate your location. Therefore, it is effective in the case where it is necessary to regulate the upward movement position and the downward movement position of the window glass, such as a hard top car. In this case, when the moving dimension of the window glass is different according to the vehicle model, a plurality of stoppers having stopper fragments formed at different circumferential positions are prepared, and the stopper is selected and mounted according to the type of the vehicle. do. In addition, the stopper does not necessarily have to have outer teeth over the entire area of the outer circumferential surface, and the number of teeth can be adjusted appropriately according to the required strength, and when the number of teeth is reduced, only the regions equally divided in the circumferential direction of the stopper, respectively. This is done by forming the outer teeth.

As described above, according to the window elevating device of the first embodiment, a sealed state in which the outer gear 43, the inner gear 45, and the like constituting the cyclone deceleration mechanism 4 are composed of the base 201 and the cap 202. It can be accommodated in the housing 2, so that the end of the output shaft 42 only protrudes from the housing 2. Therefore, foreign matters or water droplets can be prevented from entering the housing 2, and foreign matters can be prevented from breaking into the gears, preventing rust or freezing due to water droplets, and improving the reliability of the window elevating device. In addition, a transmission disk 44 for rotating the inner gear 45 at a uniform angular velocity is disposed between the Y-side guide portion 432 of the outer gear 43 and the X-side guide portion 222 of the cap 202. Since it is arrange | positioned in the pinched state, the dimension of an axial direction does not become large unnecessarily and it becomes possible to comprise a thin window lifting device.

FIG. 7 is a partially exploded perspective view of a second embodiment in which the present invention is applied to a manual window elevating device that rotates and drives a drive shaft by a handle rotated by manual operation, and FIG. 8 is a longitudinal cross-sectional view of the assembled state. Here, since the basic structure of 2nd Embodiment is the same as that of 1st Embodiment, the same code | symbol is attached | subjected to the equivalent part. The housing 2 is comprised from the base 201 and the cap 202 caulking attached to the opening periphery of this base 201, and the inside is sealed. The base 201 is provided with a hollow boss 205, the output shaft 42 is inserted through the hollow boss 205, the arm 5 is integrally connected to the outer end of the output shaft 42 have. In addition, a spline 424 is formed at the inner end of the output shaft 42 so that the spline hole 454 opened at the center of the inner gear 45 is splined to be integrated in the rotational direction, and the C ring 47 is also provided. ) Is prevented.

In addition, a shaft hole 206 is opened at a central position of the cap 202 which is concentric with the hollow boss 205, and the rotation operation shaft 48 is liquid-tight in this shaft hole 206. ) It is inserted and penetrated. A spline 481 is formed at the outer end of the rotation operation shaft 48 so that the operation handle 7 for rotation operation when the window is opened and closed can be connected. In addition, a non-circular plate 482 is integrally formed at the inner end of the rotation operation shaft 48, and is integrally coupled in the circumferential direction with the eccentric rotating plate 49 embedded in the housing 2. The eccentric rotating plate 49 is formed in a shallow dish shape having a circular recess 491 at the inner surface side, and the recess 491 is eccentric with respect to the rotation operation shaft 48 and the hollow boss 205. As a result, an eccentric ring portion 492 similar to that of the first embodiment is formed.

The outer gear 43 has a circumferential surface whose outer diameter is the same as that of the concave portion 491 of the eccentric ring portion 492, and the inner gear 43 has an inner tooth formed therein. In part of the circumference thereof, the inner gear 45 is engaged. The outer gear 43 is integrally formed with a pair of Y-side guide parts 432 at a portion facing the base 2. Moreover, a pair of X side guide part 222 is integrally formed in the inner surface of the said base 201 which opposes this, and is surrounded by these Y side guide part 432 and the X side guide part 222. In the region, a square plate-shaped transfer disk 44 having an axial hole 441 that is sufficiently larger than the outer diameter of the hollow boss 205 is in sliding contact with the respective guide portions 432 and 222 at each side. It is built in. In addition, a stopper 46 is built into the outer gear 43 at a position axially adjacent to the inner gear 45, and outer teeth 461 formed in a plurality of portions of the circumferential surface of the stopper 46 are provided. ) Is engaged with the inner teeth 431 of the outer gear 43. In addition, a part of the circumference of the inner circumferential surface of the stopper 46 is integrally provided with a stopper fragment 462, and a part of the circumference of the inner gear 45 has a stopper protrusion 455 protruding in the outer diameter axial direction. It is the same as that of 1st Embodiment which is comprised so that collision is possible.

According to the window elevating apparatus of 2nd Embodiment of the above structure, the reduction mechanism 4 which consists of a cyclone deceleration mechanism by the rotation operation shaft 48, the eccentric rotation board 49, the outer gear 43, and the inner gear 45 is comprised. ) Is configured. Therefore, when the operation handle 7 is rotated and the rotation operation shaft 48 is rotated and driven, the eccentric rotating plate 49 which is integrally connected to this rotates, and the eccentric ring part 491 formed in this eccentric rotating plate 49 is rotated. ), The rotational force is transmitted to the outer gear 43. Accordingly, the outer gear 43 is eccentrically rotated with respect to the output shaft 42 while being engaged with the inner gear 45, and the inner gear 45 meshed with the outer gear 43 is rotated by the eccentric rotation. ) Is rotated together, and a rotational force is output to the output shaft 42. Thereby, similarly to 1st Embodiment, the deceleration operation | movement which implements the cycle which can drive rotation of an output shaft by reducing the rotation speed of a rotation operation shaft by arbitrary reduction ratio is realized.

In this case, the outer gear 43 is in sliding contact with the Y-side guide portion 432 so that the transmission disk 44 can slide only in the X direction. Since 44 is in sliding contact with the X-side guide part 222 formed in the base 201, and is slidable only in the Y direction, the rotational force of the eccentric rotating plate 49 is time-dependent in the X direction and the Y direction, respectively. Transmitted to the outer gear 43 in a divided state, and as a result, the rotational angular velocity of the inner gear 45 rotated by the outer gear 43 becomes substantially constant, and the output shaft 42 and the arm 5 connected thereto are ) Can be rotated at a substantially constant angular velocity as in the first embodiment. As a result, the arm 5 is reciprocally rotated at a substantially constant angular speed by the forward rotation and the reverse rotation of the rotation operation shaft 48, and the window glass 6 connected to the tip portion 52 of the arm 5 By moving in the vertical direction along the window of the car can be opened and closed.

As described above, according to the window elevating device of the second embodiment, the outer gear 43 and the inner gear 45 constituting the deceleration mechanism 4 are sealed in a housing configured by the base 201 and the cap 202. (2) can be stored. Therefore, foreign matters or water droplets can be prevented from entering the housing 2, and the foreign matters can be prevented from interfering with the gears or from rusting or freezing due to water droplets, thereby improving the reliability of the window elevating device. In addition, in this 2nd embodiment, although the sealing property is slightly inferior to 1st embodiment only as the rotation operation shaft 48 is penetrated by the cap 202, since the cap 202 faces toward a vehicle interior, Foreign matter and water droplets rarely penetrate from the part, and there is no particular problem. With the transmission disk 44 for rotating the inner gear 45 at the same angular velocity, sandwiched between the Y-side guide portion 432 of the outer gear 43 and the X-side guide portion 222 of the base 201. Since it arrange | positions, the dimension of an axial direction does not become large unnecessarily, and it becomes possible to comprise a window lifting apparatus thinly.

Here, in the configuration of the second embodiment, the eccentric rotating plate 49 may be formed integrally with the worm wheel as in the first embodiment, and configured to be driven by rotation by an electric motor. Similarly, it can be applied to a power window device.

In addition, in the first embodiment, as a stopper mechanism for regulating the angle of rotation of the arm, a stopper pin is placed upright on the inner gear, but may have the same configuration as the stopper protrusion 455 of the second embodiment. 9 is an exploded perspective view of the inner gear and the stopper as an example thereof, and FIG. 10 is a plan view of the assembled state. That is, the upper surface of the inner gear 45 is formed integrally with a circular thickness portion 456 thickening the peripheral area of the non-circular hole 452, and a part of the circumference of the thickness portion 456 protrudes in the radial direction. Thus, the stopper protrusion 457 is formed. On the other hand, the stopper 46 is formed in a ring shape and has an outer tooth 461 on the outer circumferential surface thereof so as to be engaged with the inner tooth 431 of the outer gear 43 as in the first embodiment, but the inner circumferential surface has a circumferential direction. Therefore, it is formed as the stopper cam 463 whose diameter dimension changes. The cam shape of the stopper cam 463 has a large diameter region 463a having the largest diameter dimension occupying almost one quarter of the circumferential direction, and a slight diameter dimension formed on both sides of the circumferential direction of the large diameter region 463a. It consists of a small middle diameter area | region 463b and the small diameter area | region 463c with the smallest diameter dimension which occupies almost 1/2 of the circumferentially opposing side between these middle diameter area | regions 463b.

According to this structure, as shown in FIG. 10, when the stopper protrusion 457 rotates in the inner peripheral surface of the stopper 46, ie, in the stopper cam 463 according to the rotation of the inner gear 45, the stopper protrusion ( The tip of 457 moves over the trochoid trajectory as shown by the broken line in FIG. 10. When the stopper protrusion 457 moves in the outer diameter direction, the tip end surface collides toward the outer diameter direction with respect to the middle diameter region 463b, and rotates by a predetermined rotational angle. Rotation, that is, rotation of the inner gear 45 is regulated. At this time, the stopper protrusion 457 collides with the middle diameter region 463b toward the radial direction in the protruding direction and regulates rotation, so that the mechanical resistance of the stopper protrusion 457 can be increased. It is possible to prevent the deformation of the stopper protrusion 457 to exert a stable stopper function. In addition, the large diameter area 463a is a contrast for the stopper protrusion 457 not to interfere with the stopper cam 463 when the stopper 46 is eccentrically rotated with the outer gear 43 with respect to the inner gear 45. Of course, I prepared. In addition, the small diameter area 463c of the stopper cam 463 is provided to increase the mechanical strength of the stopper 46 by increasing the width dimension of the stopper 46 in the radial direction, and through the arm 5 to the inner gear. Even when a strong external force is applied to the 45, it is advantageous in preventing damage to the stopper cam 463. In this structure, when regulating the bidirectional rotational position of the inner gear 45, the diameter dimension of the middle diameter area | region 463b of both sides may be set suitably. It goes without saying that the stopper fragment can also be configured as such a stopper cam in the stopper of the second embodiment.

As described above, the window elevating device of the present invention includes an outer gear, an inner gear, a transmission disk, etc. for constituting a deceleration mechanism for decelerating and transmitting the rotational force of a rotationally driven rotating body such as a worm wheel or an eccentric rotating plate. The outer gear is formed by the rotational operation of the rotating body by constructing the base and the cap together with the rotating body and being embedded in the sealed housing so that the tip of the output shaft protrudes from the housing and is connected to the arm for lifting the window glass. Eccentric rotation, the inner gear engaged with this is decelerated, outputs the reduced rotational force to the output shaft, rotates the arm to allow the window glass to move up and down, and foreign matter such as dust or water droplets enter the inside of the housing. It is possible to obtain a highly reliable window elevating device that is excellent in dust resistance, water resistance and freezing resistance. It becomes possible.

Claims (4)

A rotating body that is rotationally driven, an arm connected to the output shaft disposed concentrically with the rotating body, the arm being rotated to elevate the window glass of a vehicle such as a car, and a deceleration mechanism for slowing down the rotational motion of the rotating body and transmitting it to the output shaft In the window elevating device having: an outer gear consisting of an inner toothed ring gear that is eccentrically rotated in accordance with a rotational drive of the rotating body; and the output shaft meshes with the outer gear inside the outer gear. An inner gear axially supported at the inner side, wherein the rotating body, the outer gear and the inner gear are embedded in a sealed housing consisting of a base and a cap, and a tip of the output shaft protrudes from the housing; A window elevating device, characterized in that connected to the arm at the tip. 2. A transmission disk according to claim 1, further comprising a transmission disk for transmitting the rotational force of said outer gear to said inner gear with respect to the X direction being one radial direction and the Y direction being another radial direction perpendicular to this direction. A pair of Y-side guide members opposed to the Y direction are integrally provided, and the housing is integrally provided with a pair of X-side guide members facing the X direction along the Y direction, and the transfer disk is A window elevating device, characterized in that it is formed of a rectangular plate-like member which is in sliding contact with each guide member between both guide members and can move in the X direction and the Y direction, respectively. The outer gear according to claim 1 or 2, wherein the rotating body is provided integrally with a worm wheel that is rotationally driven by an electric motor provided integrally with the housing and is formed in a circular recess eccentric with respect to the output shaft. And an eccentric ring portion for storing the window lifting device. The said rotating body is connected to the rotating operation shaft which one end part protruded from the said housing in the axial direction opposite to the said output shaft, The said outer body is in the circular recessed part which eccentric with respect to the said output shaft. And an eccentric ring portion accommodating gears, wherein one end of the rotation operation shaft is connected to an operation handle which is rotationally driven by manual operation.