JPH0732822Y2 - Self-propelled switchgear - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an opening / closing device for an opened / closed member such as an automobile window or a sunroof, particularly when a driving source for opening / closing drive moves together with the opened / closed member. Self-propelled opening and closing device.

[Prior Art] As a conventional example of this type of self-propelled switchgear, a power window regulator which has been widely used in passenger cars and the like in recent years will be described as an example.

This type of self-propelled power window regulator is an alternative to the conventional X-arm system or wire drive system in which the drive source is fixed to the door side. By moving the drive motor together with the window glass, the number of parts is greatly increased. It is excellent in that it can be effectively used in the door space.

Proposals of this type of self-propelled power window regulator can be found in Japanese Utility Model Laid-Open No. 60-68284 and Japanese Patent Laid-Open No. 61-286485. Here, the configuration of Japanese Utility Model Laid-Open No. 60-68284 is taken as an example. Explain.

The power window disclosed in the publication is, as shown in FIG. 6, a glass holder 12 fixed to a lower end portion of a window glass 10, a forward / reverse rotatable motor 14 fixed to the glass holder 12, and It is composed of a pinion gear 18 which is rotationally driven by a motor 14 via a worm gear 16, and a rack 20 which is vertically fixed to an in-panel of a door and meshes with the pinion gear 18.

Further, according to this power window, since the window is driven by the rack 20 and the pinion gear 18, the number of parts is small, and the door 20 has the rack 20.
Since it is only fixed vertically, the space inside the door can be used effectively.

[Problems to be Solved by the Invention] By the way, according to the above-described self-propelled power window regulator, the motor 14 which is a drive source for opening and closing drive is used.
However, it will move together with the window glass 10, which is the member to be opened and closed.

Usually, the movement path of the window glass 10 is regulated along the guide in the door, while the motor 14 must be moved so that the rack 20 and the pinion gear 18 are constantly meshed with each other. Therefore, the motor 14 needs to be moved along the rack 20.

However, there is considerable play between the window glass 10 and the door guide, while the window glass 10
It is extremely difficult to completely match the moving paths of the guide 20 and the rack 20 for restricting the moving paths thereof due to the mounting error and variations in the dimensional accuracy of the products.

And, in the event that a deviation occurs between the two movement paths in this way, in the case of a self-propelled power window that is direct drive, the meshing of the rack-pinion gears deteriorates, and smooth drive cannot be performed. The rubber cushion of the window, the rack, and the teeth of the pinion may be damaged.

For this reason, in order to realize this type of self-propelled power window, the dimensional accuracy of the product must be increased, and the rack 20 must be securely adjusted, and the device becomes expensive and the assembly work is extremely complicated. There was a problem.

Therefore, an object of the present invention is to solve the above-mentioned problems of the related art, to prevent the dimensional accuracy of the product from being excessively required, and to easily open and close the member to be opened and closed while being easy to assemble. An object is to provide a self-propelled opening / closing device that can be driven.

[Means for Solving the Problems] The present invention relates to an opened / closed member that is opened / closed along a guide, a rack provided along the moving direction of the opened / closed member, and the rack meshed with the rack. A pinion gear that moves in the moving direction of the member to be opened and closed, and a motor that is attached to the member to be opened and closed and that rotates forward and reverse to rotate the pinion gear and move with the member to be opened and closed to open and close the member to be opened and closed. Provided along the moving direction of the opened / closed member,
A movement stabilizing unit that guides the motor to stabilize the movement, a regulating unit that regulates the movement of the pinion gear with respect to the rack to maintain the meshed state of the rack and the pinion gear, and rotation of the motor by the pinion gear. And a universal joint for transmitting to.

The universal joint is a joint that can transmit the motor output to the pinion gear even if the output shaft of the reduction gear of the motor and the rotation shaft of the pinion gear deviate in, for example, parallel or intersecting directions. In addition to the mechanism that belongs to the spherical 4-node rotation chain or the radial axis 4-node rotation chain in terms of mechanics, a flexible shaft can be used.

[Operation] In the present invention, in order to surely perform opening / closing drive of the opened / closed member,
The movement path of the pinion gear is regulated by the regulation means so that the meshing state of the rack and the pinion gear can be always ensured. In this way, the movement path of the pinion gear is restricted by the restriction means, while the motor can be stably moved along the movement path by the movement stabilization means without rattling.

Therefore, when a deviation occurs between the movement path of the pinion gear that moves along the rack and the movement path of the motor that moves along the movement direction of the opened / closed member due to an installation error, a product dimensional error, or the like. There is. Therefore, the output shaft of the reduction gear of the motor and the rotation shaft of the pinion gear may not be aligned on the same line.

Therefore, in the present invention, even when the output shaft of the reduction gear of the motor and the rotation shaft of the pinion gear do not match, the rotational power can be reliably transmitted, and the reduction gear and the pinion gear are not loaded, so that both shafts are It is connected by a universal joint, giving it freedom in the direction of rotation power transmission.

As a result, even if the two shafts are displaced in parallel or in the intersecting direction, the universal joint can reliably transmit the rotational power, and the assembling work of the device is greatly simplified.

[Embodiment] An embodiment in which the present invention is applied to a self-propelled power window regulator will be specifically described below with reference to the drawings.

The power window as a self-propelled switchgear is shown in Fig. 3,
As shown in FIGS. 4 and 5, the rack fixedly supported along the moving direction of the window glass 30, which is the member to be opened and closed.
40, a pinion gear 50 that meshes with the rack 40, a motor 60 that drives the pinion gear 50 to rotate forward and backward, and a support member 70 that supports the motor 60 on the window glass 30.
And have.

The rack 40 has teeth 40a and is fixed to a rack mounting bracket (hereinafter referred to as bracket) 41. The rack 40 and the bracket 41 are formed in a curved shape with a curvature substantially the same as the curvature of the curved window glass 30. Then, attaching pieces 41a, 41a formed in a U shape at the upper and lower ends of the bracket 41 are attached to the door inner plate 32 by the bolts 3
The bracket 41 is fixed by fastening with 3,33. The window glass 30 is regulated to move with respect to the window glass frame by the guide 35.

Further, the bracket 41 has key-shaped engaged portions 42, 43 on both end sides in the width direction thereof, and regulates the movement path of the motor 60.

The motor 60 is composed of a motor body 61 and a gear housing 62 fixed to the motor body 61.

A reduction gear provided in the gear housing 62 reduces the speed of the output of the motor body 61 and transmits it to the pinion gear 50 having a rotation shaft in a direction orthogonal to the line P in FIG. It is a thing.

The gear housing 62 will be described in more detail. The gear housing 62 includes a member for fixing the motor body 61 and a member for positioning the bracket 41.

That is, the support member is provided above the gear housing 62.
Mounting pieces 63, 64 for mounting the 70 are formed, and one end extended along a line corresponding to the P line is engaged with the engaged portion 43 of the bracket 41. The protrusion 66 is formed.

Next, the supporting member 70 will be described. The supporting member 70 fixes the motor 60 via the gear housing 62, and a holding portion 71 for holding one end side of the window glass 30 with, for example, an adhesive. Fixing portions 72, 73, a vertical surface 74 obtained by bending one edge portion of the one fixing portion 72 at a right angle, and one end of the vertical surface 74 is further bent at a right angle so that the vertical surface 74 is parallel to the window glass 30 during assembly. Parallel surface formed 75
have.

By attaching the motor 60 to the window glass 30 by the support member 70, as shown in FIG. 3, when the present mechanism is viewed from the moving end side of the window glass 30, the output shaft of the motor 60 The coincident P line coincides with the center line of the window glass 30 in the thickness direction.

Further, when the support member 70 is assembled, as shown in FIG. 3, the engaged portion 42 of the rack bracket 41 is arranged inside the vertical surface 74 and the parallel surface 75.

With the above configuration, the movement path of the motor 60 is not merely restricted by the guide 35 of the window glass 30, but is displaced within a certain range with respect to the rack bracket 41.

That is, in the directions of arrows X and Y in FIG. 3 of the motor 60, the vertical surfaces 74, the parallel surfaces 75, and the gear housing 62 of the support member 70 are engaged with the engaged portions 42, 43 of the rack bracket 41. Since the protrusion 66 is engaged, the motor 60
Shifts with respect to the rack bracket 41, that is, the rack 40, and moves.

Next, explaining the regulating means of the pinion gear 50, on the side of the surface of the pinion gear 50 facing the rack bracket 41, a guide pin 51 is fixed in a protruding manner, and
A guide slit 45 is formed in the rack bracket 41 along the formation direction of the rack 40. Then, by inserting and supporting the guide pin 51 in the guide slit 45,
Movement of the pinion gear 50 in the X direction in FIG. 3 is restricted.

On the other hand, regarding the movement restriction of the pinion gear 50 in the direction of the arrow Y in FIG. 3, protrusions 46, 46 projecting toward the surface of the pinion gear 50 having the guide pin 51 are formed on the bracket 41. Also, on the opposite side of the pinion gear 50,
As pinching the pinion gear 50 between the protrusions 46, 46,
Guide plates 47 and 48 are formed on the bracket 41.

In this way, by restricting the movement of the pinion gear 50 in the X and Y directions in FIG. 3, the pinion gear 50 moves while always meshing with the teeth 40a of the rack 40.

Next, the connection between the output shaft of the motor 60 and the pinion gear 50 whose movements are restricted as described above will be described with reference to FIGS. 1 and 2.

A worm 90 is fixed to the output shaft of the motor 60, and a worm wheel 91 that meshes with the worm 90 is rotatably supported by the gear housing 62.
Is stuck to. Then, the worm 90 and the worm wheel 91 convert the motor output in the orthogonal direction and decelerate.

Then, as a characteristic configuration of the present embodiment, the rotation output shaft
93 and the rotating shaft 50a of the pinion gear 50 are connected via a universal joint 80.

The universal joint 80 is a joint that can smoothly transmit the motor output to the pinion gear 50 even when the rotation output shaft 93 and the rotation shaft 50a of the pinion gear 50 do not coincide with each other on the same line. , And those shown in FIGS. 2 (A) and 2 (B).

In the structure shown in FIG. 2A, rotating bodies 83, 83 are rotatably provided by pins 82, 82 at both ends between a pair of parallel plates 81, 81. Then, pins 84, 84 are fixed to the rotating body 83 in a direction orthogonal to the pins 82, 82. And, to the pins 84, 84, a joint 85 fixed to the rotation output shaft 93,
The joint 86 fixed to the rotating shaft 50a of the pinion gear 50 is rotatably connected.

As a result, the joints 85 and 86 are rotatable with respect to the rotating bodies 83 and 83 in the direction A shown in FIG.
Is rotatable with respect to the parallel plate 81 in the direction B in the drawing, the rotation output shaft 93 and the rotation shaft of the pinion gear 50 are not on the same line, and even if they are displaced in parallel or in the intersecting direction, The rotary power of the rotary output shaft 93 can be reliably transmitted to the pinion gear 50.

On the other hand, as shown in FIG. 2B, the U-shaped metal fittings 100 and 101 are fixed to the rotary output shaft 93 and the rotary shaft 50a of the pinion gear 50, and the facing surfaces 100a, 100a and 101a, 101a are displaced by 90 °. Holes 1 on each of the facing surfaces 100a, 100a, 101a, 101a.
It forms 00b and 101b. And these four holes 100b, 1
00b, 101b, 101b is provided with a cross fitting 102 whose tip is inserted and supported, and the cross fitting 102 allows the U-shaped fittings 100, 1
01 is connected.

As a result, the rotation output shaft 93 and the rotation shaft of the pinion gear 50
Even if the 50a deviates in the intersecting direction, the rotational power of the rotary output shaft 93 can be reliably transmitted to the pinion gear 50.

Next, the operation of the power window will be described.

The drive principle of this power window is that the output of the motor body 61 is decelerated by the worm 90 and the worm wheel 91 in the gear housing 62, and the output shaft of the motor body 61 is the same as in the conventional rack-pinion system proposal. By transmitting to the pinion gear 50 having the rotating shaft 50a in the direction orthogonal to the.

When this driving force is transmitted, the pinion gear 50 rotates while meshing with the rack 40.
Since 40 is fixed to the door inner plate 32 via the bracket 41 and the mounting piece 41a, the rotation of the pinion gear 50 causes the pinion gear 50 to move along the rack 40.

Since the pinion gear 50 is integrally supported by the motor 60, the support member 70, and the window glass 30 that is the opened / closed member, these members move integrally with the pinion gear 50, and the forward / reverse drive of the motor 60 is performed. By this, it becomes possible to open and close the window glass 30.

In this way, in the self-propelled power window, the motor 60 moves together with the window glass 30 that is the opened / closed member. The movement of the motor 60 is restricted by the guide 35 of the window glass 30 that moves integrally with the motor 60, and the rack bracket 41 is locked by the engagement of the members 42, 43, 66, 74, 75 shown in FIG. The movement is regulated so as to be within a certain range.

On the other hand, the movement path of the pinion gear 50 is regulated in the X and Y directions of FIG. 3 by the regulation members 45, 46, 47, 48, 51 so that the meshed state with the rack 40 can be always ensured.

Further, in this embodiment, even if a deviation occurs due to the dimensional accuracy of the product, a mounting error, etc., between the movement path of the motor 60 and the movement path of the pinion gear 50, smooth driving can be achieved. .

That is, although the motor 60 is restricted in movement in the X and Y directions in FIG. 3, it will move integrally with the window glass 30 that moves along the guide 35, and the guide 35 with a lot of rattling will move. Because there is a rack 40 within the movement-restricted range
In some cases, it may deviate from the formation route of.

Further, as shown in FIG. 5, the curved movement path of the window glass 30, that is, the movement path of the motor 60 and the rack 40
It is rare that the movement path of the pinion gear 50 that moves along the line completely coincides with each other. If there is a difference in curvature, inclination, or the like between the two, the two do not move in parallel, but move with a slight inclination.

At this time, in the present embodiment, the rotary output shaft 93 which is the final output of the motor 60 and the rotary shaft 50a of the pinion gear 50 are connected with a degree of freedom via the universal joint 80.

Therefore, even in such a case, an extra load does not act on the rack and pinion, the rotational power can be reliably transmitted, and smooth vertical movement can be ensured.

Thus, according to the above-described embodiment, the universal joint 80 connects the rotation output shaft 93 of the motor 60 and the rotation shaft 50a of the pinion gear 50 with a degree of freedom, so that dimensional accuracy of parts is not excessively required. Moreover, it is possible to realize a self-propelled power window device without requiring complicated adjustment when mounting the window glass 30 and the rack 40.

The present invention is not limited to the above embodiment,
Various modifications can be made within the scope of the present invention.

For example, as the universal joint 80 connecting the rotation output shaft 93 of the motor 60 and the rotation shaft 50a of the pinion gear 50, the universal joint 80 shown in FIG. 2 is merely an example, and other similar effects can be obtained. Various types of universal joints can be employed.

[Effect of the Invention] As described above, according to the present invention, by transmitting the motor output to the pinion gear through the universal joint, both the motor and the pinion gear move like a self-propelled power window, and Even if the movement path is slightly deviated, the rotational power can be transmitted without an extra load acting on the rack-pinion, and the opening / closing member can be smoothly opened / closed.

Further, since the dimensional accuracy of the parts is not excessively required, the same power window device can be applied to many kinds of vehicles, that is, doors having different curvatures, so that versatility is improved. Moreover, the self-propelled switchgear can be assembled without requiring complicated adjustment work.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic sectional view showing a connecting portion between a motor rotation output shaft and a pinion gear rotation shaft when the present invention is applied to a self-propelled power window, and FIG. ) And (B) are schematic explanatory views showing an example of a universal joint, FIG. 3 is a schematic explanatory view showing a relationship between a motor and a rack-pinion gear, FIG. 4 is a plan view of the same mechanism, and FIG. FIG. 6 is a schematic explanatory view showing movement loci of the motor and the window glass inside the door, and FIG. 6 is a schematic explanatory view of a conventional rack-pinion type power window. 30 …… Opening / closing member, 35 …… Guide, 40 …… Rack, 45,4
6,47,48,51 …… Movement restriction member, 50 …… Pinion gear, 50
a …… Rotary shaft, 60 …… Motor, 80 …… Universal joint, 93 …… Rotary output shaft.

Claims (1)

[Scope of utility model registration request] 1. An opened / closed member that is opened and closed along a guide, a rack provided along the moving direction of the opened / closed member, and a rack that meshes with the rack and moves in the moving direction of the opened / closed member. A pinion gear, a motor attached to the opened / closed member side, rotating in the forward / reverse direction to rotate the pinion gear to move together with the opened / closed member to open / close the opened / closed member, and in a moving direction of the opened / closed member. A movement stabilizing means that is provided along the same to guide the motor to stabilize the movement; a regulating means that regulates the movement of the pinion gear with respect to the rack to maintain a meshed state of the rack and the pinion gear; A self-propelled switchgear comprising: a universal joint for transmitting the rotation of the pinion gear to the pinion gear.