JPH0338011Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Field of industrial application) This invention is a structure in which a sliding roof is attached to the ceiling of vehicles, sunrooms, etc. in order to improve the functionality and taste. This invention relates to an improvement of a sliding roof drive device applied to.

(Prior Art) Conventional driving devices for sliding roofs for vehicles have various structures, including one shown in FIG. 1, for example. The drive device shown in FIG. 1 transfers rotational force from a motor 1 to a worm 2.
A wheel arm 6 is removably engaged with a plate 5 incorporated in the worm wheel 3, and a nut holding member 7 is fixed to this wheel arm 6. has a structure in which a nut 8 screwed into an output shaft 9 is loosely fitted. Then, by tightening the nut 8, the wheel arm 6 is engaged with the plate 5, and the rotation of the worm wheel 3 is transmitted to the output shaft 9, and by rotating the pinion 10, the sliding roof is automatically opened and closed. . On the other hand, by loosening nut 8,
The plate 5 and the wheel arm 6 are separated via the nut holding member 7, and the output shaft 9 can be easily rotated manually using the groove 9a formed at the tip of the output shaft 9. 57-15720)
It is.

However, in the sliding roof drive device shown in FIG. 1, the nut 8 is tightened when the motor drive is used, and the nut 8 is loosened when switching to manual operation, but if the nut 8 is loosened too much,
There have been problems such as the nut 8 and other manually operated switching components falling off, and the need for heat treatment to improve the strength of the components, making them expensive.

(Purpose of the invention) This invention was made by focusing on the problems of the conventional technology as described above.In the case of a sliding roof drive device for a vehicle or a sunroom, etc., when the drive motor fails, etc. Therefore, when it becomes necessary to open or close the sliding roof, there is little risk of the manual operation switching component falling off, and there is no need for special tools or heat treatment of parts.
The purpose is to provide an inexpensive and reliable sliding roof drive device.

(Structure of the invention) The structure of the sliding roof drive device for a vehicle according to this invention includes a coupling engagement surface and an elastic member locking part on the circumferential surface of one end, and a pinion for driving the sliding roof on the other end. The blind hole of a coupling, which has a blind hole that can be engaged with the coupling engagement surface, and has an engagement portion with a sliding roof drive source and an elastic member holding portion, is fitted into the one end side of the output shaft provided with the coupling. the elastic member held by the elastic member holding portion is locked with the elastic member locking portion, and the engaging portion with the sliding roof drive source is engaged with the driving source, and the ceiling of the blind hole is A female screw hole is formed in the female screw hole, and the elastic member and the elastic member locking portion are engaged with each other in the female screw hole, and the engaging portion of the sliding roof drive source is disengaged from the drive source. The present invention is characterized in that a male thread is provided so as to be able to come into contact with the end surface of one end of the output shaft.

(Embodiment) Figures 2 to 7 show an embodiment of this invention, in which 11 is a drive motor, 12 is a worm fixed to the rotating shaft of the drive motor 11, and 13 is a worm wheel that meshes with the worm 12. A worm 12 and a worm wheel 13 constitute a deceleration mechanism, which is connected to the drive motor 11.
It is housed in a case 14 that is integrally connected to the casing 14.

A bearing portion 15 is formed in the case 14, and an output shaft 16 is rotatably provided on the bearing portion 15, and the worm wheel 13 is rotatably provided on the outer periphery of the bearing portion 15. . The output shaft 16 has a coupling engagement surface 17 on the circumferential surface of one end thereof, and is also provided with a groove-shaped elastic member locking portion 18 in a direction substantially perpendicular to the axial direction of the output shaft 16. Further, a pinion 21 for driving the sliding roof is fixed to the other end side of the output shaft 16. A toothed cable (not shown) is engaged with this pinion 21, and when the output shaft 16 rotates in either direction, both toothed cables are moved in opposite directions, and the vehicle is connected to the toothed cable. The sliding roof can be opened and closed.

As shown in FIGS. 6 and 7, the worm wheel 13 has a hole 13a in its center portion for fitting with the outer periphery of the bearing portion 15, and
It has an annular groove 22 on one side, and this annular groove 22
In the illustrated example, four coil springs 23 are disposed within the spring. In addition, there are bent pieces 24a at four locations.
The bent piece 24a of the plate 24 formed with
are inserted between the coil springs 23, respectively, and the plate 24 is fitted onto one side of the worm wheel 13. In addition, a spline-shaped engagement portion 24 is provided at the center of the plate 24.
It has b. When the worm wheel 13 has such a configuration, when trying to transmit the rotational force of the worm wheel 13 transmitted by the worm 12 to another object via the engaging portion 24b of the plate 17, , the coil spring 23
acts as a damping means, and can effectively reduce sudden loads.

A coupling ring 3 is attached to one end of the output shaft 16.
0 is fitted. This coupling 30 has a blind hole 31 in the center thereof having a shape corresponding to the cross-sectional shape of the output shaft 16 in which the coupling engagement surface 17 is formed.
have. Therefore, when the coupling ring 30 is fitted to one end of the output shaft 16, it is slidable in the axial direction of the output shaft 16 but cannot be rotated in the circumferential direction. Further, a female screw hole 32 is formed in the ceiling of the blind hole 31 of the coupling ring 30, a manual operation engagement part 33 is formed in one end, and an elastic member holding part 34 is formed in the cylindrical part. At the same time, an engaging portion 35 for engaging the sliding roof drive source is formed on the other end side to engage with the spline-shaped engaging portion 24b.

Furthermore, a roughly U-shaped elastic member 36 as shown in FIG. 5 is fitted and held in the elastic member holding portion 34. As shown in FIG. In addition, the female screw hole 32 has a male screw 3.
7 is screwed in so that it can come into contact with the end surface of the output shaft 16 on one end side.

Next, the operation of the sliding roof drive device configured as described above will be explained.

First, in the case of automatic opening/closing, as shown in FIG. The elastic member 36 fitted into the elastic member holding portion 34 is connected to the output shaft 1.
The rotation of the worm wheel 13 is transmitted to the pinion 21 via the coupling ring 30 and the output shaft 16, and the sliding roof is automatically opened and closed.

On the other hand, when switching to manual opening/closing operation, use a screwdriver etc. to tighten the male screw 37 into the coupling 3.
Make sure to screw it in within 0. Here, the male screw 37
Since the tip of the output shaft 16 comes into contact with the end surface of one end of the output shaft 16, the reaction force causes the coupling 3 to
0 comes out of the output shaft 16, the elastic member 36 is disengaged from the elastic member locking portion 18 of the output shaft 16, and the engaging portion 35 of the coupling ring 30 is disengaged from the engaging portion 24b on the drive source side. Therefore, by fitting a manual operating tool into the manual operating tool engaging portion 33 provided on the coupling ring 30 and manually operating the sliding roof, the sliding roof can be opened and closed manually.

At this time, the elastic member 36 is inserted into the elastic member locking groove 18.
Since the output shaft 16 will be pressed with even stronger force when the coupling 3 is separated from the output shaft 16,
This can prevent 0 from falling off.

FIG. 8 shows another embodiment of this invention, in which an elastic member 36 and an elastic piece 39 are provided in an elastic member holding portion 34 formed in a coupling 30, and this elastic piece 39 is attached to the output shaft 16. The elastic member locking portion 18 provided therein is configured to lock the elastic member locking portion 18, and the same effects as in the previous embodiment can be obtained.

(Effects of the invention) As explained above, according to the sliding roof drive device of this invention, the circumferential surface of one end is provided with a coupling engagement surface and an elastic member locking part, and the sliding roof is provided on the other end. A coupling having a blind hole that can be engaged with the coupling engagement surface on the one end side of the output shaft including a driving pinion, and also having an engagement part with a sliding roof drive source and an elastic member holding part. fitting the blind hole, causing the elastic member held by the elastic member holding part to be locked by the elastic member locking part, and engaging the sliding roof drive source engaging part to the drive source; A female screw hole is formed in the ceiling of the blind hole, and the elastic member and the elastic member locking portion are locked in the female screw hole, and the engaging portion with the sliding roof drive source and the drive source are connected. Because the male screw that releases the engagement is provided so that it can come into contact with the end surface of one end of the output shaft, manual operation is possible when the drive motor breaks down in a sliding roof drive device such as a vehicle or a sunroom. When it becomes necessary to open or close the sliding roof, it is possible to switch to manual operation by simply turning a screw, and after switching to manual operation, the manual operation switching component The sliding roof drive device has very excellent effects such as a low risk of falling off, no need for special tools or heat treatment of parts, and an inexpensive and reliable sliding roof drive device.

[Brief explanation of drawings]

Fig. 1 is an explanatory longitudinal cross-sectional view of a conventional sliding roof drive device for a vehicle, Fig. 2 is an explanatory longitudinal cross-sectional view of a sliding roof drive device for a vehicle in an embodiment of the present invention, and Fig. 3 is a longitudinal cross-sectional explanatory view of a sliding roof drive device for a vehicle in an embodiment of the present invention. FIG. 4 is an enlarged sectional view of the coupling portion shown in FIG. 2 when the sliding roof is manually opened and closed; FIG. 5 is a front view of the elastic member; 6 and 7 are a partially cutaway front view and a sectional view taken along line A--A of the worm wheel, and FIG. 8 is an enlarged sectional view of a coupling portion of a sliding roof drive device according to another embodiment of the invention. DESCRIPTION OF SYMBOLS 11... Drive motor, 16... Output shaft, 17... Coupling engagement surface, 18... Elastic member locking part, 21...
Pinion for sliding roof drive, 30...
Coupling ring, 31...Blind hole, 32...Female threaded hole, 3
4... Elastic member holding part, 35... Engagement part with sliding roof drive source, 36... Elastic member, 37... Male thread, 39... Elastic piece.

Claims (1)

[Scope of utility model registration request] The output shaft is provided with a coupling engagement surface and an elastic member locking portion on the circumferential surface of one end, and a pinion for driving a sliding roof on the other end, and is engageable with the coupling engagement surface on the one end. The blind hole of the coupling ring is fitted with the blind hole and has an engaging part with the sliding roof drive source and an elastic member holding part, and the elastic member held in the elastic member holding part is locked to the elastic member. and engaging the sliding roof drive source with the driving source, forming a female threaded hole in the ceiling of the blind hole, and inserting the elastic member into the female threaded hole. A male thread that engages with the elastic member engagement portion and disengages the engagement portion between the sliding roof drive source and the drive source is provided so as to be able to come into contact with the end face of the one end side of the output shaft. Features a sliding roof drive system.