JPH0625380Y2 - Sun hatch drive - Google Patents

Description

[Detailed description of the device] [The purpose of the device]

(Field of Industrial Application) The present invention relates to a sun hatch used to open and close a part of a roof of an automobile, and more particularly to a drive device for driving the sun hatch. (Prior Art) Conventionally, as a drive device for driving a sun hatch that opens and closes a part of a roof of an automobile, a drive device as shown in FIG. 5 is known. The illustrated sun hatch drive device 100 includes a casing 10
The sun hatch lid 104, which is a part of the roof 103, is tilted up or down by manually rotating the dial 102 provided on the indoor side of No. 1. The first gear 105 is integrated with the dial 102, and the pivot shaft 106 rotatably supports the dial 102 and the first gear 105. Intermediate gear 10
7 integrally includes a tooth portion 107a that meshes with the first gear 105 and a worm portion 107, and the output shaft 108 has a tooth portion 108a that meshes with the worm portion 107b of the intermediate gear 107.
And a tooth portion 108b having substantially the same shape on the tooth portion 108a.
108b are connected. The rack 109 is rotatably supported by a bracket 104 a provided on the sun hatch lid 104, and also has a tooth portion 108 of the output gear 108.
mesh with b. When the dial 102 is manually rotated, the dial 102
Is transmitted from the first gear 105 to the intermediate gear 107, and the intermediate gear 107 rotates to transmit the rotational force from the worm portion 107b to the tooth portion 108a of the output gear 108, and the rotation of the output gear 108 causes the rack to rotate. 10
9 drives the sun hatch lid 104 to tilt up or tilt down. When the rack lock mechanism (not shown) is released when the sun hatch lid 104 reaches the uppermost position for tilting up, the rack 109 is disengaged from the tooth portion 108b of the output gear 108 and disengages, and the sun hatch lid 104 is attached to the roof 103. It can be removed from.

[Problems to be solved by the device]

However, in the above-described conventional sun hatch drive device 100, the drive torque for tilting up and down the sun hatch lid 104 is the rotational force of the dial 102 that is manually rotated, that is, the first gear 105 and the intermediate gear 107. Reduction gear ratio, intermediate gear 107 and output gear 10
8 and the reduction ratio of the output gear 108 and the rack 109 are set, it is necessary to increase these reduction ratios in response to the own weight of the sun hatch lid 104, which is relatively heavy. And each gear 10
No. 5,107,108 must be made to be strong, which not only increases the overall size of the sunhatch drive device and reduces the vehicle interior space, but also increases the sunhatch drive device 100. Is installed in a place near the human head in the vehicle and is operated manually, which makes the operation complicated,
Not a little obstacle to the safe running of the vehicle (for example,
ECE REGULATION NO. 21) See the section on internal equipment). (Object of the Invention) In order to solve the above-mentioned conventional problems, the present invention is small and electrically driven by a motor, and can be easily stopped at a predetermined position, and the operation hinders the running of the vehicle. It is an object of the present invention to provide a sunhatch drive device that can be operated without the need.

[Constitution of device]

(Means for Solving Problems) A sunhatch drive device according to the present invention is rotatably supported by a sunhatch lid (6) and the other end of the sunhatch lid (6). A sunhatch drive having a rack (8) for moving a lid (6) between an up position and a down position,
A motor (4) having a motor shaft (4a) that rotates forward and backward, and a worm wheel (7e) that rotates by the rotational force of the motor shaft (4a) being transmitted through a reduction mechanism (7); An output shaft (10) that rotatably supports a worm wheel (7e) and has an emergency drive member insertion hole (10d) at its end, and is integrally fixed to the output shaft (10). At the same time, an output gear (9) having a tooth portion (9a) meshed with the rack (8) on the outer peripheral portion and an output shaft (10) are integrally supported, and on the side surface of the worm wheel (7e). The motor shaft (4a) rotates and the output shaft (1
In a sunhatch drive device including a friction clutch mechanism (15) for connecting and disconnecting the rotation of (0), the up-side movable contact (3) connected to one terminal (4b) of the motor (4).
g), the first ground side fixed contact (3b) initially connected to the up side movable contact (3g), and the up side movable contact (3g) moved by the operation of the occupant in the up direction Side movable contact (3g) separates from the first ground side fixed contact (3b) and is connected to the first anode side fixed contact (3e), and the other terminal (4) of the motor (4).
down side movable contact (3h) connected to c), the second ground side fixed contact (3d) initially connected to the down side movable contact (3h), and the down operation by the occupant in the down direction. The second movable contact (3h) is connected by separating the down movable contact (3h) from the second grounded fixed contact (3d) by the movement of the movable contact (3h), and the second fixed anode (3f) connected to the power source is connected to the anode side. ) And operation switch (3)
A movable relay contact (rl2) connected to a power source, one end initially connected to the movable relay contact (rl2) and the other end fixed to the first anode side fixed contact (3e) of the operation switch (3). ) Connected to the first fixed relay contact (rl1)
And a relay coil (which has one end connected to a power supply and is excited when a current is supplied from the power supply, and moves the movable relay contact (rl2) to separate it from the first fixed relay contact (rl1) ( rlC), a first contactor (13) having one end connected to the other end of the relay coil (rlC), and one end having a first
Second contactor (14) which is arranged so as to face the contactor (13) and whose other end is grounded.
And the other end of the first contactor (13) and the second contactor (14), which are arranged at the up-side end of the rack (8).
Of the contact plate (1
2) and an auto stop mechanism (11) provided with. (Operation of the Invention) In the sun hatch drive device according to the present invention, the drive torque for driving the sun hatch lid (6) is applied from the motor shaft (4a) of the motor (4) to the speed reduction mechanism (7).
Through the friction clutch mechanism (15) and the output shaft (1
0) and is generated. Therefore, when the sun hatch lid (6) having a relatively large weight is driven, the power of the motor (4) is used, so that the operation by the occupant can be simplified and the traveling of the vehicle is not hindered. Even if the motor (4) cannot be energized, the emergency shaft can be dealt with by rotating the output shaft (10) through the emergency drive member insertion hole (10d).

【Example】

An embodiment of the sunhatch drive device according to the present invention will be described below with reference to FIGS. In the illustrated sun hatch drive device 1, a casing 2, a motor 4, a speed reduction mechanism 7, an automatic stop mechanism 11, and a friction clutch mechanism 15 are housed, and an operation switch 3 is attached to the outside of the casing 2. The casing 2 is mounted by screwing a screw 16 into a roof 5 shown in FIG. 3 from a mounting hole 2a formed in the base 2b, and the casing 2 is formed as a small-thickness. It is composed of base covers 2c and 2d which cover the base 2b. A motor holder 2e for accommodating the motor 4 is provided on the base 2b on the left side end portion in FIG. 1 toward the upper side, and an intermediate shaft 7a forming a part of the reduction gear mechanism 7 is provided in the central portion.
Bearings 2f and 2g for rotatably supporting both ends of the shaft are arranged, and bearings 2h and 2i for rotatably supporting the output shaft 10 are arranged to intersect with the intermediate shaft 7a.
A rack insertion portion 2j is arranged between the bearings 2h and 2i, and a switch attachment portion 2k for attaching the operation switch 3 is provided on the upper side near the left end in FIG. An operation switch 3 is attached to the switch attachment portion 2k, and the operation switch 3 is a toggle switch which is inverted in two directions as is clear from FIG. 4, and includes an up-side switch 3a and a down-side switch. 3b and. The second ground side fixed contact 3b provided in the up side switch 3a and the second ground side fixed contact 3d provided in the down side switch 3c are grounded, and the first anode provided in the up side switch 3a. The side fixed contact 3e is connected to the first relay fixed contact rl1 of the relay RL.
The second anode fixed contact 3f provided in the down switch 3c is connected to the movable relay contact rl2 of the relay RL and also to the power source + B. The up-side movable contact 3g included in the up-side switch 3a is connected to one terminal 4b included in the motor 4, and the down-side movable contact 3h included in the down-side switch 3c is the other terminal 4c included in the motor 4. It is connected to the. The motor 4 is housed and fixed in the motor holder portion 2e of the base 2b, and the motor shaft 4a projects toward the intermediate shaft 7a. In the motor 4, when the current is supplied from the one terminal 4b to the other terminal 4c, the motor shaft 4a rotates forward, and when the current is supplied from the other terminal 4c to the one terminal 4b, the motor shaft 4a rotates reversely. A worm portion 7b forming a part of a reduction mechanism 7 described later is coupled to the motor shaft 4a. Here, as is clear from FIG. 3, the sun hatch lid 6 is arranged in a part of the roof 5, and a bracket 6a is provided on the indoor side of the sun hatch lid 6 and the bracket 6a is attached to the bracket 6a. The rack 8 is rotatably attached. The rack 8 has teeth 8a formed along the length direction. The teeth 8a mesh with the teeth 9a of the output gear 9 to be described later, so that the output gear 9 rotates forward to move the rack 8. Then, the sun hatch lid 6 is moved toward the up position, and the output gear 9 reversely rotates, whereby the rack 8 is moved back and the sun hatch lid 6 is moved to the down position. When the lock member 18 is operated while the sun hatch lid 6 reaches the up position, the movement of the rack 8 is restricted, so that the sun hatch lid 6 is held at the up position. On the other hand, the reduction mechanism 7 is provided with a worm 7b connected to the motor shaft 4a, a worm wheel portion 7c provided on the intermediate shaft 7a and meshing with the worm 7b, and also provided on the intermediate shaft 7a and the output shaft 10a. Consists of a worm portion 7d that meshes with the worm wheel 7e that is inserted through
The rotational force of the motor shaft 4a is reduced by the worm 7b and the worm wheel portion 7c, further reduced by the worm wheel 7e, and then transmitted to the output shaft 10 via the friction clutch mechanism 15. A friction clutch mechanism 15 is integrally supported on the output shaft 10. The friction clutch mechanism 15 is as shown in FIG.
A facing 15 made of friction material, which is arranged in contact with both side surfaces of the worm wheel 7e inserted through the output shaft 10.
a, 15b, lock plates 15c, 15d that are non-rotatably inserted in the output shaft 10, disc springs 15e that are also non-rotatably inserted in the output shaft 10, and flat washers 15f.
And a lock washer 15g, a nut 15h, and U-shaped clips 15i and 15j. One lock plate 15d is fixed to the central portion of the output shaft 10, and a flat locking portion 10a and grooves 10b and 10c are formed near the right end of the output shaft 10 in FIG. Further, another flat locking portion 10e and a male screw portion 10f are formed near the left end of the output shaft 10 in FIG. At the right end of the output shaft 10 in FIG. 2, an emergency drive member insertion hole 10d formed in a hexagonal hole shape is provided. The emergency drive member insertion hole 10d has a hexagonal shaft-shaped emergency drive member (not shown) when the battery, which is the power source of the vehicle, is exhausted and the motor 4 cannot be driven. Is used to rotate the output shaft 10. The bearing 2i is arranged on the right side of the lock plate 15d of the output shaft 10 in FIG.
The output gear 9 is inserted into a, and the U-shaped clip 15j is attached to the groove 10c, and the groove 1 is provided outside the bearing 2h.
Since the U-shaped clip 15i is attached to 0b, the output gear 9 is non-rotatably locked to the output shaft 10 and the case 2
Is arranged in the rack insertion part 2j. In addition, the second lock plate 15d on one side of the output shaft 10
One facing 15b and the worm wheel 7e are inserted on the left side in the drawing, and the other facing 15a, the other lock plate 15c, the disc spring 15e, and the flat spring 15e are inserted into the flat locking portion 10e of the output shaft 10. Washer 1
5f is inserted and the nut 15h is screwed into the male screw portion 10f. When the nut 15h is screwed into the output shaft 10, both facings 15a and 15b are pressed against the side surface of the worm wheel 7e by the elastic repulsive force of the disc spring 15e, so that the facing 15a is prevented when the output shaft 10 is not restrained from rotating. , 15b is the worm wheel 7e
When the worm wheel 7e is pressed against the output shaft 10
When the output shaft 10 is restrained from rotating, the worm wheel 7e makes sliding contact with the facings 15a and 15b, whereby the intermediate shaft 7a and the worm wheel 7e.
Do not rotate with respect to the output shaft 10 and do not transmit the rotational power of the motor shaft 4a to the output shaft 10. On the other hand, the auto stop mechanism 11 includes a contact plate 12 made of a conductive material and two contactors 1 made of a conductive material.
3, 14 and relay RL. Contact plate 1
Reference numeral 2 denotes a rectangular shape and is attached to the rack 8 near the right end in FIG. Since the contact plate 12 is attached to the rack 8, the sun hatch lid 6
Moves with respect to the roof 5 and thus moves with the rack 8. The contactors 13 and 14 are fixed to the side portions of the contact plate 12 above the casing 2, and the first contactor 13 is arranged to face the second contactor 14. The first contactor 13 is connected to the other end of a relay coil rlC provided in the relay RL, and the second contactor 14 is grounded. When the sun hatch lid 6 reaches the fully open position, the first contactor 13 and the second contactor 14 are connected to the contact plate 12 at the end of the rack 8 so that the first contactor 13 is grounded. When the sun hatch lid 6 is not in the fully open position, the first contactor 13 and the second contactor 14 are not connected to the contact plate 12, so the first contactor 1
3 is not grounded. In the relay RL, the movable relay contact rl2 is connected to the second anode fixed contact 3f provided in the down switch 3c, and the normally closed first fixed relay contact rl1 is the up switch 3a.
Is connected to the first fixed anode contact 3e on the anode side, the movable contact 17b provided on the main switch 17 is connected to the fixed contact 17a by an occupant's operation, and the up switch 3a moves upward. When the contact 3g is connected to the first anode side fixed contact 3b, the movable relay rl2 of the relay RL and the up side movable contact 3 of the up side switch 3a.
g from one terminal 4b of the motor 4 to the other terminal 4
A current is supplied to c to rotate the motor shaft 4a forward. Further, when the down side movable contact 3h of the down side switch 3c is connected to the second anode side fixed contact 3f while the main switch 17 is connected by the operation of the occupant, the down side movable contact 3h of the down side switch 3c is connected. A current is supplied from the other terminal 4c of the motor 4 to the one terminal 4b via the motor 4 to rotate the motor shaft 4a in the reverse direction. Then, in a state where the main switch 17 is connected by the operation of the passenger, the up-side movable contact 3g of the up-side switch 3a is connected to the first anode-side fixed contact 3b, and the first contactor 13 and the second contactor are connected. 14, the relay coil rlC is excited to separate the movable relay contact rl2 from the fixed relay contact rl1, and the up side movable contact 3g of the up side switch 3a is connected to the first anode side fixed contact 3b. Even if it is done, the current supply to the motor 4 is cut off. In the sun hatch drive device 1 having such a structure,
When the sun hatch lid 6 is in the down position (fully closed state), the main switch 17 is turned on and the open side switch 3a is turned on, whereby the up side movable contact 3g becomes the first anode side fixed contact. When connected to 3e, the movable relay contact rl2 of the relay RL becomes a fixed relay contact.
Movable relay contact of relay RL because it is connected to rl1
rl2 and up side movable contact 3g of open side switch 3a
From one terminal 4b of the motor 4 to the other terminal 4c
Since the electric current of the power supply is supplied to the motor shaft 4a, the motor shaft 4a rotates forward, the output gear 9 rotates forward when the motor shaft 4a rotates forward, and the rack 8 moves when the output gear 9 rotates forward. Move the hatch lid 6 toward the up position. When the sun hatch lid 6 is moved to the up position, the rack 8 is also moved together with the sun hatch lid 6. Therefore, when the sun hatch lid 6 reaches the up position (fully open state), the first contactor 1 contacts the contact plate 12.
3 and the second contactor 14 are connected, the relay coil RLC is excited by forming a ground circuit in the relay coil RLC, and the movable relay contact rl2 is separated from the fixed relay contact rl1. Even if the side movable contact 3g is connected to the first anode fixed contact 3e, the current supply from one terminal 4b of the motor 4 to the other terminal 4c is cut off, and the sun hatch lid 6 stops at the up position. To be done. When the down side movable contact 3h is connected to the second anode side fixed contact 3f by turning on the down side switch 3c while the sun hatch lid 6 is in the up position, the first contactor 13 contacts. The movable relay contact rl2 of the relay RL is separated from the fixed relay contact rl1 because it is connected to the second contactor 14 via the plate 12, but the motor 4 via the down side movable contact 3h of the down side switch 3c. Since the electric current of the power source is supplied from the other terminal 4c to the one terminal 4b, the motor shaft 4a rotates in the reverse direction, and the output shaft 9 rotates in the reverse direction by the reverse rotation of the motor shaft 4a. The rotation causes the rack 8 to move back and move the sun hatch lid 6 toward the down position. At this time, while the sun hatch lid 6 is moving toward the down position, if a catch occurs on the moving side of the sun hatch lid 6, the sun hatch lid 6 is prevented from moving, so the output shaft The worm wheel 7e is also constrained to rotate, and the rotational power of the motor shaft 4a is transmitted by restraining the rotation of the output shaft 10.
Slidingly contacts the facings 15a and 15b, the intermediate shaft 7a and the worm wheel 7e run idle with respect to the output shaft 10 to transfer the rotational power of the motor shaft 4a to the output shaft 10.
Therefore, the rotational power of the motor shaft 4a is shut off. Also, for example, when the battery runs out, the motor 4
When the current cannot be supplied to the output shaft 10, the emergency drive member (not shown) is inserted into the emergency drive member insertion hole 10d of the output shaft 10 and the output shaft 10 is rotated to manually force the output shaft 10 to rotate. The sun hatch lid 6 is driven by rotating the sun hatch 6.

[Effect of device]

As described above, since the sunhatch drive device according to the present invention is configured as described above, it is compact and can be electrically driven by a motor, and can be easily stopped at a predetermined position, and the vehicle travels. It has an excellent effect that the operation can be performed without any trouble and the output shaft can be rotated even if the motor cannot be energized.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of an embodiment of a sunhatch drive device according to the present invention, FIG. 2 is a vertical sectional side view around an output stage of the sunhatch drive device shown in FIG. 1, and FIG.
FIG. 4 is a vertical cross-sectional side view of the sunhatch drive unit in a roof mounted state, FIG. 4 is a circuit configuration diagram of the sunhatch drive unit shown in FIG. 1, and FIG. 5 is an external view of a conventional sunhatch drive unit. DESCRIPTION OF SYMBOLS 1 ... Sunhatch drive device 3 ... Operation switch 3b ... 1st earth side fixed contact 3d ... 2nd earth side fixed contact 3e ... 1st anode side fixed contact 3f ... 2nd anode side fixed contact 3g ... Up side movable Contact 3h ... Downside movable contact 4 ... Motor 4a ... Motor shaft 4b ... One terminal 4c ... Other terminal 6 ... Sun hatch lid 7 ... Reduction mechanism 7e ... Worm wheel 8 ... Rack 9 ... Output gear 9a ... Tooth 10 ... Output shaft 10d ... Emergency drive member insertion hole 11 ... Auto stop mechanism 12 ... Contact plate 13 ... First contactor 14 ... Second contactor 15 ... Friction clutch mechanism rl1 ... First fixed relay contact rl2 ... Movable relay contact rlC ... Relay coil RL ... Relay

Claims (1)

[Scope of utility model registration request] 1. A sun hatch lid (6), which is rotatably supported by the other end of the sun hatch lid (6), and which has the sun hatch lid (6) in an up position or a down position. A sunhatch drive device including a rack (8) for moving between, a motor (4) including a motor shaft (4a) that rotates in a normal and reverse direction, and a rotational force of the motor shaft (4a) reduces a reduction mechanism (7). )
And a worm wheel (7e) that rotates by being transmitted through the worm wheel (7e), which rotatably supports the worm wheel (7e) and has an emergency drive member insertion hole (1) at an end thereof.
0d), and a tooth portion (9) that is integrally fixed to the output shaft (10) and that is meshed with the rack (8) on the outer peripheral portion.
an output gear (9) provided with a); and an output gear (9) integrally supported by the output shaft (10) and arranged in contact with a side surface of the worm wheel (7e) to rotate the motor shaft (4a). A sun hatch drive device comprising a friction clutch mechanism (15) for connecting and disconnecting the rotation of an output shaft (10), comprising an up-side movable contact (3g) connected to one terminal (4b) of the motor (4). , The up-side movable contact (3
g) first ground side fixed contact (3)
b) and the up side movable contact (3g) is moved by the operation of the occupant in the up direction, so that the up side movable contact (3g) is separated from the first ground side fixed contact (3b) to be connected. First fixed contact on the anode side (3
e), a down side movable contact (3h) connected to the other terminal (4c) of the motor (4), and a second ground side fixed initially connected to the down side movable contact (3h). By moving the contact point (3d) and the down side movable contact (3h) by the operation of the occupant in the down direction, the down side movable contact (3h) is separated from the second ground side fixed contact (3d). An operation switch (3) having a second fixed anode contact (3f) connected to the power source, a movable relay contact (rl2) connected to the power source, and one end of the movable relay contact (rl2). first fixed relay contact (rl1) which is initially connected to rl2) and has the other end connected to the first anode side fixed contact (3e) of the operation switch (3).
And one end is connected to the power supply and is excited when a current is supplied from the power supply, and the movable relay contact (rl
2) a relay (RL) including a relay coil (rlC) that is moved away from the first fixed relay contact (rl1), and one end of the relay coil (rl).
First contactor (13) connected to the other end of C)
A second contactor (14), one end of which is arranged so as to face the first contactor (13) and the other end of which is grounded, and an up side end of the rack (8). An auto stop mechanism (11) is provided, which is provided with a contact plate (12) that electrically connects the other end of the first contactor (13) and one end of the second contactor (14). Sunhatch drive device characterized by.