JPH06106985A - Open / close drive for sunroof device - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to reliably prevent spattering of gear cables. [Structure] A leaf spring (59) and a gear cable (5) and an output gear (46) for biasing and supporting the gear cable (5) to maintain a proper meshing between the gear cable (5) and the output gear (46). ) Is fixed directly to the case (41) to cover the meshing part with the plate spring (59), and the gear cable (5) of the plate spring (59) and the box (61) and the output gear. The relative position with respect to the meshing part with (45) is surely maintained.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sunroof that opens and closes a roof panel linked to a gear cable by pushing and pulling a gear cable meshed with the output gear by rotating the output gear linked to a gear mechanism. The present invention relates to an opening / closing drive device.

[0003]

2. Description of the Related Art Conventionally, as this type of opening / closing drive device,
The one disclosed in JP-A-59-48228 is known. This is one that pushes and pulls the gear cable meshed with the output gear by the rotating operation of the output gear linked to the gear mechanism to open and close the roof panel linked to the gear cable. The case is fixed to the sunroof housing, and the sunroof housing is supported and fixed with an urging member that maintains the meshed state of the gear cable and the output gear by the urging force and a box that covers the meshed portion of the output gear and the gear cable. Was there.

[0004]

However, in the above-mentioned conventional device, the sunroof housing is present between the output gear and the gear cable, and the gear cable is prevented from splashing during operation. Since the biasing member and the box are supported and fixed to the sunroof housing, the dimensional error of the sunroof housing formed by press molding or die molding causes the biasing member and the box against the meshing portion between the gear cable and the output gear. This will affect the relative position, making it difficult to reliably prevent the gear cable from splashing. For this reason,
There was a risk of abnormal noise and poor meshing due to splashes on the gear cable.

Therefore, it is a technical object of the present invention to surely prevent the gear cable from splashing.

[0006]

[Constitution of the invention]

[0007]

In order to solve the above technical problems, the technical measures taken in the present invention include a case in which a gear mechanism is built in, an output gear is externally arranged and fixed to a sunroof housing, A biasing member that is fixed to the case and supports the gear cable by a biasing force to maintain the meshed state of the output gear and the gear cable; and a meshing portion of the output gear and the gear cable that is fixed to the case. And a box that covers the urging member and supports the urging member.

[0008]

According to the above technical means, since the box and the urging member for restricting the position of the gear cable are directly fixed to the case, the relative position of the box and the urging member with respect to the meshing portion between the gear cable and the output gear is ensured. Held in. This can reliably prevent the gear cable from splashing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the sunroof housing 1 has an operating mechanism 2 composed of a link and a shoe.
The sunroof panel 3 is slidably supported via. The sunroof housing 1 also supports a drive unit 4 which will be described later, and the drive unit 4 is connected to the operating mechanism 2 via a gear cable 5. The cable 5 is guided by a pipe 6 supported by the sunroof housing 1. The sunroof housing 1 supporting the drive unit 4 and the panel 3 is fixed to a vehicle roof 7, and the sunroof panel 3 is arranged in an opening 8 formed in the vehicle roof 7. Therefore, the opening 8 of the vehicle roof 7 is opened and closed by sliding the sunroof panel 3 through the gear cable 5 and the operating mechanism 2 by the operation of the drive device 4.

Next, the drive device 4 will be described.

As shown in FIGS. 2 to 5, the case 41 comprises a resin housing 42 and a resin cover 43 which are fixed to each other by screws 58 so as to form an internal space. The case 41 is fixed to the bracket portion 1a formed on the sunroof housing 1 by a bolt 69 and a nut 70 via a rubber 68 at a boss portion 43c formed on the cover 43. A bearing portion 42a is formed in the housing 42, and a rotary shaft 44 is rotatably supported on the inner circumference of the bearing portion 42a.
A drive gear 45 is rotatably supported and supported on the outer surface of the bearing portion 42a.

The upper end of the rotary shaft 44 penetrates the cover 43 and extends outside the case 41, and an output gear 46 arranged outside the case 41 is fixed thereto. The output gear 46 is meshed with the gear cable 5. Case 41
A rotary shaft 47 is rotatably supported by a housing 42 and a cover 43 via bearings 48 and 49. A worm gear 50 meshed with the drive gear 45 is integrally formed on the rotary shaft 47. A motor 51 is arranged outside the case 41 so as to be supported by a housing 42, and an output shaft 51 a of the motor 51 has a coupling 5
It is connected to the rotary shaft 47 via 2. The joint 52 absorbs axial misalignment between the output shaft 51a and the rotary shaft 47, and maintains the meshing between the worm gear 50 and the drive gear 45 in an appropriate state. With these configurations, the motor 51
The drive gear 45 is rotationally operated via the output shaft 51a, the joint 52, the rotary shaft 47, and the worm gear 50.

A sleeve 53 is arranged on the drive gear 45 around the rotary shaft 44 and is rotatably supported. The axial position of the sleeve 53 is regulated by the standing wall portion 43a formed on the cover 43. An elongated hole 44a extending in the axial direction is formed in the rotary shaft 44, and a lock pin 54 is axially slidably supported in the elongated hole 44a along the elongated hole 44a. The lock pin 54 is fitted in a radial groove 53a formed in the sleeve 53, and is slidable by the sliding movement of the sleeve 5.
Engage with 3. A flange portion 53b extending downward is formed on the sleeve 53, and the flange portion 53b is inserted into a groove 45 formed in the drive gear 45 and engaged with the drive gear 45 via an elastic member 55. There is.
The elastic member 55 protects the drive gear 45 and the like by absorbing the load and the like from the sleeve 53 side and preventing the load and the like from being applied to the drive gear 45. With these configurations, the rotation operation of the drive gear 45 causes the output gear 46 to rotate through the elastic member 55, the sleeve 53, the lock pin 54, and the rotation shaft 44, so that the gear cable 5 is pushed and pulled. Become.

The rotary shaft 44 has an inner shaft 56.
Is screwed so as to be slidable in the axial direction, and the inner shaft 56 supports the lock pin 54. A spring 57 is arranged between the rotary shaft 44 and the inner shaft 56, and the spring 57 constantly biases the inner shaft 56 to bring the lock pin 54 and the sleeve 53 into an engaged state. Further, a bolt 62 that abuts the inner shaft 56 is screwed into the rotary shaft 44. The bolt 62 is exposed outside the case 41,
It can be operated from the outside. With these configurations, when the bolt 62 is rotated, the inner shaft 5
6 is slid against the urging force of the spring 57 to release the engagement between the lock pin 54 and the sleeve 53, and the rotary shaft 4 is rotated regardless of the rotational operation of the drive gear 45.
4 is rotated, whereby the output gear 46 is rotated and the gear cable 5 is pushed and pulled.

That is, by operating the motor 51, the output gear 45 is rotationally operated to push and pull the gear cable 5, whereby the sunroof panel 3 is slid through the operating mechanism 2 and the inner shaft. A manual drive for sliding the sunroof panel 3 through the actuating mechanism is possible by rotationally operating 56 to rotationally operate the output gear 45 to push and pull the gear cable 5.

The upper surface of the cover 43 is a smooth support surface 43b. A leaf spring 59 is fixed to the support surface 43b integrally with the cover 42 by outsert molding. The leaf spring 59 has a U shape, and the flange portion urges and supports the side portion of the gear cable 5 to maintain the meshing between the gear cable 5 and the output gear 46 in an appropriate state. A box 61 is fixed on the support surface 43b with a screw 60. A box portion 61a is formed in the box 61, and a leaf spring 59 and an output gear 46 are housed in the box portion 61a. This allows
The leaf spring 59 is supported by the box 61 and the meshing portion between the output gear 46 and the gear cable 5 is covered, so that the position of the gear cable 5 with respect to the output gear 46 is regulated.

A gear 63 is fixed to the rotary shaft 44, and a gear 65 is meshed with the gear 63 via a gear 64. The gear 65 is provided with a limit switch (not shown) and a cam plate 66. The position detecting mechanism 67 of the sunroof panel 2 thus configured is arranged via an opening 42b formed in the housing 42.

Since the leaf spring 59 and the box 61 are directly fixed to the cover 43 of the case 41 as described above,
The relative positions of the leaf spring 59 and the box 61 with respect to the meshing portion between the gear cable 5 and the output gear 46 are reliably held without being affected by the sunroof housing 1 or the like. As a result, the spring of the gear cable 5 and the like are reliably prevented by the leaf spring 59 and the box 61, and abnormal noise and disengagement of the gear cable 5 are eliminated, and smooth movement of the gear cable 5 is prevented. The operating efficiency is improved. Also, the leaf spring 5
9 is a cover 42 formed by outsert molding on the cover 42.
Since it is fixed integrally with the molding of (1), forgetting to assemble the leaf spring is reduced and the working efficiency is improved.

Further, the rotary shaft 44 and the lock pin 54.
The sleeve 53 that is engaged and disengaged with the drive gear 45 is disposed on the drive gear 45.
5 is supported by a common bearing portion 42a, so that the bearing portion 42a overlaps the entire engaging portion between the groove 45a of the drive gear 45 and the flange portion 53a of the sleeve 53 in the thickness direction of the drive device 4. Is formed by. That is, the supporting portion of the rotary shaft 44 with respect to the case 41 is enlarged without increasing the thickness of the driving device 4. As a result, the rotary shaft 44 is supported on one side without lowering the support rigidity of the rotary shaft 44 only by the bearing portion 42a, and the support accuracy of the rotary shaft 44 is improved. Therefore, the engagement failure between the drive gear 45 and the sleeve 53, the engagement failure between the output gear 46 and the gear cable 5, and the like are eliminated, and the number of processing steps of the case 41 is reduced. Further, the support accuracy of the drive gear 45 is also improved without being affected by the support accuracy of the rotary shaft 44, so that the meshing with the worm gear 50 is maintained in an appropriate state.

[0021]

According to the present invention, since the box for controlling the position of the gear cable and the biasing member are directly fixed to the case,
The relative positions of the box and the biasing member with respect to the meshing portion between the gear cable and the output gear can be reliably maintained. As a result, it is possible to reliably prevent the gear cable from splashing, eliminate abnormal noise and disengagement of the gear cable, ensure smooth movement of the gear cable, and improve operating efficiency. . Further, the biasing member can be integrally fixed to the case simultaneously with the molding of the case by the outsert molding, and forgetting to attach the biasing member can be reduced to improve the work efficiency.

[Brief description of drawings]

FIG. 1 is a plan view of a sunroof device adopting an opening / closing drive device according to the present invention.

FIG. 2 is a plan view of an opening / closing drive device according to the present invention.

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

FIG. 4 is a sectional view taken along line BB in FIG.

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

[Explanation of symbols]

 3 Sunroof Panel 5 Gear Cable 41 Case 44 Rotation Shaft (Gear Mechanism) 45 Drive Gear (Gear Mechanism) 46 Output Gear 50 Worm Gear (Gear Mechanism) 51 Motor (Drive Source) 59 Leaf Spring (Biasing Member) 61 Box

Claims (1)

[Claims] 1. A rotation mechanism of an output gear linked to a gear mechanism linked to a drive source pushes and pulls a gear cable meshed with the output gear to open and close a sunroof panel linked to the gear cable. In an opening / closing drive for a sunroof device, a case in which the gear mechanism is built in and the output gear is externally arranged and fixed to a sunroof housing, and a case fixed to the case to support the gear cable by urging force A sunroof device having: a biasing member for maintaining a meshed state of a gear and the gear cable; and a box fixed to the case for covering a meshing portion of the output gear and the gear cable and supporting the biasing member. Open / close drive.