JPH0749026B2 - Switchgear - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for opening and closing an indoor curtain provided in a rear window or a side window of an automobile or the like.

[0002]

2. Description of the Related Art A curtain provided on a rear window of an automobile has rails attached to upper and lower window frame portions, a plurality of runners provided slidably on each rail, and the curtain is bridged between the upper and lower runners. The structure to stretch is generally known. In addition to the manual curtain structure that is manually opened and closed by a person, this conventional curtain has recently been provided with a mechanism that uses a motor or the like to open and close the curtain by controlling on / off of a switch of a power source of the motor. There was something. Such a curtain opening / closing device for an automobile is a mechanism that opens and closes a curtain composed of two left and right sheets from the center in the left-right direction.

[0003]

However, in the above-mentioned conventional curtain opening / closing mechanism, rails for slidingly guiding the curtain are provided one above and one below, and two curtains move on the same rail. , When the curtains are closed, the two curtains do not overlap in the center and a gap may occur. Further, in recent years, since the outer shape of the automobile is molded into a streamlined shape, the inclination of the rear window becomes a gentle angle, and the upper window frame has a shape positioned right above the rear seat. Then, there is a problem that the curtain rail hits the head of an occupant sitting in the back seat. Furthermore, such a conventional curtain opening and closing device is
Since the left and right height dimensions are the same, it cannot be mounted on the side window of a substantially triangular automobile. That is, there is a drawback that it is not suitable for irregularly shaped windows or the like.

Therefore, in order to solve the above-mentioned problems, the present invention does not generate a gap between the curtains when the curtain is fully closed, saves space with a simple mechanism, and creates a window of any shape. It is an object of the present invention to provide a curtain opening / closing device that can also be used.

[0005]

Means for achieving the above-mentioned object will be described below with reference to FIGS. 1 to 9 corresponding to the embodiments. The switchgear 1 according to the present invention includes a drive gear 9 that is rotatably driven by being interlocked with a drive unit 4 having a built-in clutch that cuts off power transmission when overloaded, and the drive gear 9 described above.
At least one or more driven gears 13 that are provided at a predetermined distance from each other, and resin teeth 23b on the woven tape 23a.
Are crimped and molded at a predetermined pitch to form an endless ring shape so that each tooth 23b faces inward, and the drive gear 9 or the driven gear 13 and the gear 9 (13) are arranged in parallel to form a pair. At least one or more flexible racks 23 meshing with the driven gears 13 that are configured to be wound between the respective gears 9 and 13, and the respective gears 9 of the flexible rack 23 wound around the respective gears 9 and 13. 13 and is arranged along the flexible rack 23, teeth 24d having the same pitch as the flexible rack 23 are formed on both sides 24b, 24c.
Each tooth 24d of 24c is located on the rail rack 24 facing each tooth 23b of the flexible rack 23, and at least one surface 24b (24c) of the rail rack 24,
A pinion 25 (26) that rolls by meshing with the teeth 24d of the rail rack 24 and the teeth of the flexible rack 23 facing the teeth 24d, and rolling between the racks 23 and 24, and the pinion 25. (26) includes a runner 27 (28) that is rotatably supported and a gear 13 (9) of at least one of the gears 9 and 13 on which the flexible rack 23 is wound and forms a pair. A position adjacent to the first pulley 18 (10) provided in the vicinity and the first pulley 18 (10) and slightly away from the gear 13 (9) in the vicinity of the first pulley 18 (10). A second pulley 19 (11) provided on the
A return pulley 20 (21) disposed at a position facing the first and second pulleys 18, 19 (10, 11) provided near the gear 13 (9) at a predetermined distance, and the flexible rack 23. On the extension line of the moving track of the runner 27 (28) rolling between the rail rack 24 and the rail rack 24, the first and second pulleys 18, 19 (10, 11)
A predetermined distance away from the first and second pulleys 18, 19
A turn-back pulley 37 (38) arranged in the vicinity of the gear 9 (13) paired with the gear 13 (9) near (10, 11), the return pulley 20 (21) and the turn-back pulley 37. (38) is wound around, and is installed in a substantially L shape through the first and second pulleys 18, 19 (10, 11) and circulates in an annular shape in the L shape. Moved and said first and second pulleys 18,1
The runner 27 (28) located between the 9 (10, 11) and the return pulley 37 (38) is subjected to pleating with a rope 29A (29B) whose midway portion is fixed.
One edge portion 33c is fixed along the flexible rack 23 and the rail rack 24, and the return pulley 20 (21) and the return pulley 20 are provided in a pair of guide holes 34 and 35 formed for each pleat. (21)
The first and second pulleys 18, 19 (10, 1)
1) A pair of reciprocating ropes 29A (29B) is inserted and guided, and the pair of reciprocating ropes 29A (2B) is used.
9B) one side 29Aa, a curtain 33 to which a part (30) of the moving end 33d is fixed is provided.

[0006]

The drive gear 4 is rotationally driven by the drive portion 4, and the flexible rack 23 wound between the drive gear 9 and the driven gear 13 which is separated from the drive gear 9 by a predetermined distance is rotated. The pinion 25 (2) provided on at least one surface 24 b (24 c) of the rail rack 24 provided between the gears 9 and 13
6) rolls between the flexible rack 23 and the rail rack 24 by the rotation of the flexible rack 23. The runner 27 (28) pivotally supported by the pinion 25 (26) moves along the rail rack 24. Then, it is wound between the return pulley 20 (21) and the return pulley 37 (38), and is annularly formed in a substantially L-shaped pattern via the first and second pulleys 18, 19 (10, 11). The rope 29A (29B) that circulates,
The curtain 33 is fixed to the runner 27 (28) and a part of the moving end 33d of the curtain 33 is fixed to the rope 29A (29B), so that the curtain 33 is opened and closed with respect to one edge 33c. At the time of opening / closing operation, the guide holes 34 and 35 formed for each pleat of the curtain 33 are provided.
Is guided by the rope 29A (29B), and the curtain 33 opens and closes along the rope 29A (29B).

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, as shown in FIG. 1, the opening / closing apparatus 1 is arranged so that a rail frame 2 is disposed above and a curtain 33 is moved in the vertical direction to open and close the curtain. The rail frame 2 has a substantially U-shaped cross section, and is fixed along, for example, an upper window frame of a side window of an automobile. One end 2a of this rail frame 2
A housing case 3 is provided in the housing 1, and a drive unit 4 is arranged in the housing case 3. This drive unit 4
Is composed of a motor 5, an intermediate gear 6, and a clutch gear 7, as shown in FIG. The motor 5 is obliquely fixed to the housing case 3, and a worm gear 8 is provided on an output shaft 5a extending obliquely upward. The intermediate gear 6 meshes with the worm gear 8 so that the driving force is transmitted. The clutch gear 7 is axially supported on the side of the intermediate gear 6 and meshes with the intermediate gear 6.

Next, a drive gear 9 is operatively connected to the drive unit 4. The drive gear 9 is coaxially supported with the clutch gear 7 as shown in FIG.
The clutch gear 7 and the clutch are provided so that the power of the motor 5 can be transmitted. The drive gear 9 is used in the flexible rack 2 described later.
It is designed to mesh with 3. A pair of pulleys 10 and 11 are provided near the housing case 3 where the drive unit 4 and the drive gear 9 are provided. These pulleys are located near the drive gear 9, one first pulley 10 is rotatably provided on the upper side of the housing case 3, and a second pulley 11 is a lower left side of the first pulley 10. That is, as shown in FIG. 1, the drive gear 9 is provided at a position slightly separated from the drive gear 9.

Next, at the other end 2b of the rail frame 2,
A housing case 12 having the same shape as the housing case 3 in which the drive unit 4 is provided is provided, and the driven gear 13 is provided.
Is provided. The driven gear 13 is the drive gear 9
It is formed in substantially the same shape as, and is rotatably supported by one side portion 14a of the substantially rectangular moving frame 14 as shown in FIG. The moving frame 14 is slidably disposed inside a substantially U-shaped guide frame 15 fixed to the housing case 12. Also, the other side portion 14b of the moving frame 14
One end of the tension coil spring 16 is connected to the. The other end of the tension coil spring 16 is connected to an adjusting screw 17 provided on the side portion 15a of the guide frame 15.
In the vicinity of the housing case 12 in which the driven gear 13 is provided, as shown in FIG.
19 are provided. These pulleys 18 and 19 are respectively paired with the first and second pulleys 10 and 11 provided in the housing case 3 on the drive unit 4 side, and the one first pulley 18 is one of the housings 12 and 11. Is provided in the vicinity of the driven gear 13 on the upper side of the first pulley 18, and the second pulley 19 is provided on the lower right side of the first pulley 18, that is, at a predetermined distance from the driven gear 13 as shown in FIG. It is provided in the position.

Further, both ends 2a, 2b of the rail frame 2 are
A predetermined distance below the first and second pulleys 10, 18, 11, 19 provided in the vicinity of the housing cases 3, 12 on both ends 2a, 2b of the rail frame 2, for example, the side of an automobile. As shown in FIG. 1, a pair of return pulleys 2 are provided at positions separated by height on both sides of the window.
0 and 21 are provided. These return pulleys 20, 2
The reference numeral 1 generally includes two sets of pulleys 20a and 21a, and brackets 20b and 21b that rotatably support the pulleys 20a and 21a. Then, the brackets 20b and 21b are fixed near both ends of the lower window frame such as the side window of the automobile.

Next, the driven gear 13 and the drive gear 4 described above.
A flexible rack 23 is wound around and. The flexible rack 23 includes a woven fabric tape 23a formed of nylon fiber or the like and a tooth 2 made of a hard synthetic resin.
3b is press-molded at a predetermined pitch to form an endless ring. That is, the rotation of the drive gear 9 is transmitted to the driven gear 13 via the flexible rack 23 to rotate inside the rail frame 2, and the slack of the flexible rack 23 is provided on the driven gear 13 side. The coil spring 16 prevents this.

Next, the rail frame 2 is provided with a rail rack 24 which is located between the flexible racks 23 which rotate inwardly with the teeth 23b in an elliptical shape and which extends along the flexible racks 23. . As shown in FIGS. 1 and 5, the rail rack 24 has the same structure as the flexible rack 23 attached on both surfaces of the upper surface 24b and the lower surface 24c of a long plate-shaped substrate 24a. That is, both tooth surfaces 24 of this rail rack 24
b and 24c face the teeth 23b of the flexible rack 23 and the teeth 23 of the flexible rack 23.
The teeth 24d have the same pitch as the pitch of b. As shown in FIG. 5, pinions 25 and 26 are disposed between the tooth surfaces of the rail rack 24 and the flexible rack 23 that face each other. One pinion 25
Is located on the upper surface 24b of the rail rack 24, meshes with the rail rack 24 and the flexible rack 23, and the other pinion 26 is located on the lower surface 24c of the rail rack 24.
It is adapted to roll between the racks 23 and 24 by meshing with. These pinions 25 and 26 are formed by changing the pitch circle diameter and the number of teeth, respectively. That is, the other pinion 26 has a smaller pitch circle diameter and a smaller number of teeth than the one pinion 25. Then, the flexible rack 23 is rotated around the rail rack 24 by the drive unit 4 and the drive gear 9, so that the pinions 25 and 26 are moved to the rail rack 24.
While moving the upper surface 24b and the lower surface 24c in opposite directions, the other pinion 26 moves faster with respect to the one pinion 25.

Next, the pinions 25 and 26 are provided with runners 27 and 28, respectively. The one runner 27 provided on the one pinion 25 has a shape in which a disc-shaped mounting piece 27a is continuously formed at one end of the pivot, and the mounting piece 27a is formed in a direction orthogonal to the axis of the pivot. Is provided with a fixing hole. In addition, the other runner 28 provided on the other pinion 26
As shown in FIG. 9, is formed to have substantially the same shape as the one runner 27, and a support shaft 28b is connected in parallel with the pivot shaft. And these runners 27 and 28
Has its pivot shaft rotatably mounted in the hole of the rotation center of the pinions 25 and 26, and the support shaft 28b of the other runner 28 sandwiches and supports the flexible rack 23 that meshes with the other pinion 26. It is supposed to do.

Next, the runners 2 rolling between the flexible rack 23 and the rail rack 24 described above.
A pair of folding pulleys 37, 38 are provided on the rail frame 2 on the moving track of 7, 28. As shown in FIG. 1 and FIG. 8, the one return pulley 37 is on the extension line of the moving track of the one runner 27, and the first and second pulleys 18 and 19 provided on the driven gear 13 side.
It is provided between the flexible rack 23 and the upper surface 24b of the rail rack 24, which are closer to the drive gear 9 by a predetermined distance. Further, the other turn-back pulley 38 is on the extension line of the movement track of the other runner 28, and
First and second pulleys 10, 1 provided on the drive gear 9 side
It is provided between the flexible rack 23 and the lower surface 24c of the rail rack 24, which are separated by a predetermined distance from 1 and are close to the driven gear 13.

Next, ropes 29A and 29B are fixed to the attachment pieces 27a and 28a of the runners 27 and 28, respectively. The ropes 29A and 29B are made of a resin such as nylon. As shown in the schematic view of FIG. 6, one rope 29A is wound between one return pulley 20 and one return pulley 37. Being worn,
The midway extends over the first pulley 18 and the second pulley 19 on the driven gear 13 side, and is installed in a substantially L shape. Also,
The other rope 29B is wound between the other return pulley 21 and the other turn-back pulley 38, and the middle of the first pulley 10 and the second pulley 11 on the drive gear 9 side.
It is installed in a substantially L shape. That is, the ropes 29A and 29B circularly move in an L-shaped pattern. And one rope 29A
Part of the middle part of the second rope 29B is fixed by being inserted into the attachment piece 27a of the one runner 27 that moves on the rail rack upper surface 24b.
The other runner 28 moving on the rail rack lower surface 24c
It is adapted to be inserted into and fixed to the attachment piece 28a.

The ropes 29A and 29B have connecting ends 30 and 31, respectively. The connecting end portion 30 of one rope 29A includes one return pulley 20 and the first and second pulleys 18, 19 facing the pulley 20.
One side of the rope 29A that is a pair of reciprocating pairs between the first pulley 18 and the return pulley 20 on the one side in this embodiment.
It is located on the rope on the outer peripheral side 29Aa which is located between and. The connecting end 31 of the other rope 29B is a pair of reciprocating ropes 29B between the other return pulley 21 and the first and second pulleys 10 and 11 facing the pulley 21.
On the other hand, the connection end portion 30 of the one return pulley 20 side
Is a rope that moves in the same direction as the rope 29Ba on the inner peripheral side between the second pulley 11 and the other return pulley 21 in this embodiment. These connection ends 30, 31
Is movable in the same direction only between the first or second pulley 18 or 11 and the return pulley 20 or 21 described above. That is, the connection end 3 of one rope 29A
The rope on the outer peripheral side 29Aa where 0 is provided is one runner 27 that moves on the upper surface 24b of the rail rack 24.
Is an extension of the rope 29A that is fixed, and the inner peripheral side 29B where the connection end of the other rope 29B is provided
The rope 29B of a is an extension of the rope 29B to which the runner 28 moving on the lower surface 24c of the rail rack 24 is fixed. When the one runner 27 is located on the left side in FIG. 6, the flexible rack 23 is configured to move the other runner 28 in the opposite directions at the same time. It is located on the right side of the center, and each connection end 30, 31
Is located below, in other words, close to the return pulleys 20 and 21, and when one runner 27 is located on the right side, the other runner 28 is located on the left side, and the connection end portions 30 and 31 are The position is closest to the rail frame 2.

Next, a curtain 33 is attached to the rail frame 2 and the ropes 29A and 29B described above. The curtain 33 is formed by pleating a woven fabric material such as synthetic fiber by heat setting or the like. As shown in FIG. 7, a pair of guide holes 34, 35 for each pleat are provided on both side edges 33a, 33b of the curtain 33.
Are provided respectively, and the return pulleys 20 and 21 of the ropes 29A and 29B and the first and second pulleys 1 are provided.
A pair of ropes that reciprocate between 0, 18, 11, and 19 are inserted respectively. These guide holes 34, 35 are obtained by performing embroidering or the like when forming the woven fabric material. That is, at the same time when the cloth is formed into a woven cloth, the peripheral portions of the guide holes 34 and 35 are formed by subjecting the cloth to the positions that will become the guide holes 34 and 35, and subjecting the cloth to the embroidering process.

The upper edge portion 33c of the curtain 33 is fixed to the lower side surface 2c of the rail frame 2 described above.
In addition, the lower edge portion 33 as a moving end of the curtain 33
A support plate such as a metal plate is installed in the d, that is, the lowermost stage of the pleats so that the curtain 33 is supported straight so as not to bend at the center. Then, each pair of guide holes 3 formed on both side edges of the bottom of the pleat.
The ropes 29A, 29B are provided on one side 34 of each of 4, 35.
The connection end portions 30 and 31 of are respectively fixed. That is, the curtain 33 has the upper edge 33c as a fixed end and the lower edge 33d moves up and down as the rope 29 moves.

Next, the operation of the switchgear 1 constructed as described above will be described. First, when one runner 27 of each runner 27, 28 is in the vicinity of the right end of the rail rack 24, near the drive gear 9, and the other runner 28 is in the vicinity of the left end of the rail rack 24, near the driven gear 13. The pair of connection ends 30 and 31 of the rope 29 are close to the rail frame 2, all the pleats of the curtain 33 are folded, and the curtain 33 is in a fully opened state. At this time, the power switch (not shown) is off, the motor 5 of the drive unit 4 is stopped, the gears 6, 7 and 9 do not rotate, and the driven gear 13 is always the tension coil spring 16
Since the flexible rack 23 does not sag due to the urging force of the curtain 33, the curtain 33 does not fall by its own weight.

Next, the power switch is turned on to drive the drive unit 4.
When the drive gear 9 is rotated via the intermediate gear 6 and the clutch gear 7, the flexible rack 2
3 rotates between the drive gear 9 and the driven gear 13.
Then, each pinion 25, 26 rolls on the upper surface 24b and the lower surface 24c of the rail rack 24, and each pinion 25, 2
One of the runners 27, 28 provided on the rail 6 is left on the upper surface 24b side of the rail rack 24, and the other runner 28 is on the lower surface side 2 of the rail rack 24.
Move 4c to the right. At the same time, the ropes 29A and 29B fixed to the runners 27 and 28 respectively rotate, and the outer peripheral side 29Aa of the pair of reciprocating ropes 29A on the one return pulley 20 side and the pair of reciprocating ropes on the other return pulley 21 side. The pair of connecting ends 30, 31 located on each of the inner peripheral sides 29Ba of 29B simultaneously move downward, and the curtain 3 fixed to these connecting ends 30, 31.
The lower end 33d of 3 is lowered and the curtain 33 is closed. In each of the ropes 29A and 29B in the closing operation, the runners 27 and 28 fixed to the ropes 29A and 29B have their respective pinions 25,
The moving speed is different due to the difference in the number of teeth of 26, and the rope 29B on the other hand rotates slightly faster than the rope 29A on the one hand, and the curtain 33 descends obliquely.

When the curtain 33 descends to the lowermost position, that is, the return pulleys 20 and 21, the lower edge portion 3 of the curtain 33 is
3d is inclined with respect to the upper edge portion 33c and is in a fully closed state.
Then, the rope 29 to which the curtain 33 is fixed stops, and the runners 27 and 28 also stop moving. Then,
The rotation of the flexible rack 23 meshing with the pinions 25 and 26 of the runners 27 and 28 is stopped, and the drive gear 9 is also stopped. At this time, the motor 5 continues to rotate because the power switch remains on, but the drive gear 9
Since the clutch is provided between the clutch gear 7 and the clutch gear 7, the excessive load of the motor 5 is not transmitted to the drive gear 9 side. That is, even if the off operation of the power switch is delayed, each part is not burdened.

Further, in order to stop the curtain 33 halfway and bring it into a half-opened state, if the power switch is turned off at an arbitrary position, the curtain 33 stops without descending like the fully opened state of the curtain 33 described above.

Therefore, in the opening / closing device configured as described above, the flexible rack 23 for moving the runners 27 and 28 to the left and right has the teeth 23 on the woven tape 23a.
Since b is formed by pressure bonding, the thickness is small, the space for rotating this flexible rack is formed in a very small amount, and the rail frame 2 and the like can be formed in a small diameter. This does not require a large installation space, so that the field of view can be kept wide without hindering the window of the automobile, for example.

Further, by changing the number of teeth of each runner 27, 28, the shape of the window to be mounted as described above, especially the shape of the left and right window frames having different heights can be dealt with, and can be mounted also on the side window of the automobile. . Furthermore, the curtain 33
Since the pleats are processed, all the pleats of the curtain 33 are folded when the curtain 33 is fully opened, so that the curtain accumulation is minimized.

Further, since the opening and closing direction of the curtain 33 is the up and down direction, it is possible to correspond to the inclination angle of the sunlight, and the optimum light shielding can be performed. Further, since the guide holes 34 and 35 are formed in the curtain 33 and the guide holes 34 and 35 are inserted into the ropes 29A and 29B to open and close the curtain 33 by the movement of the runners 27 and 28, a large number of runners 27 and 28 that support the curtain 33 are required. Therefore, the number of parts can be reduced.

In this embodiment, the rail frame 2 provided with the drive section 4 and the like is arranged above, and the curtain 33 is lowered to close the rail frame 2, but the rail frame 2 is moved downward. A structure in which the curtain 33 is disposed and the curtain 33 is raised to be in the closed state may be used. In this case, it can be attached to the lower window frame of the rear window of an automobile, etc., and if the rear window is tilted at a gentle angle and the upper window frame is located directly above the rear seat,
Do not hit the head of a passenger sitting in the back seat.

Further, as described above, the opening / closing device 1 may be arranged so as to open and close the curtain left and right without opening and closing the curtain up and down. In this case, the rail frame 2 is arranged on the left side or the right side substantially vertically.

Further, in this embodiment, each runner 27,
Although an example in which the number of teeth of each pinion 25, 26 to which 28 is attached is changed is described, the pinion 25 and 26 may be configured to be the same. In this case, the upper window frame and the lower window frame can be attached to a window formed in parallel.

In this embodiment, an example in which the pinion rolls on the upper and lower surfaces of the rail rack 24 has been described, but one pinion may be formed on either side. In this case, the folding pulley, the return pulley, and the rope may be configured by only one side, and the device is a device that opens and closes the triangular curtain on the triangular window.

Further, as shown in FIG. 10, one driving gear may be provided with a plurality of driven gears so that a plurality of curtains can be simultaneously opened and closed. In this example, a driven gear 13A is further provided in parallel to the configuration described in the present embodiment, a flexible rack 23A is wound between the driven gears 13 and 13A, and a rope 29C is wound in an L shape.

[0031]

As described above, in the opening / closing device according to the present invention, the runner for opening / closing the curtain is moved by a flexible rack having a small thickness in which hard teeth are pressure-molded on the woven fabric tape having a high flexibility. Since the gears such as the drive gear and the driven gear for rotating the flexible rack can be formed in a small size, the space for rotating the flexible rack is very small, that is, the diameter is small. Can be configured into a shape,
As a result, there is an effect that the space for mounting the mechanical portion of the opening / closing device can be reduced.
Further, since this mechanism portion can be formed to have a small diameter, there is an effect that the obstruction of the window opening can be reduced,
For example, since this mechanism is attached only to the upper window frame of the rear window of the automobile, there is an effect that the obstruction of the window opening of the rear window can be greatly reduced.

Further, since the drive unit has a built-in clutch, even if an excessive load is generated when the curtain is opened or closed, it is not transmitted to the drive gear side, so that each unit is not burdened. is there. Further, depending on the positions of the first and second pulleys around which the rope is wound, the return pulley, and the folding pulley, this rope is wound in an annular shape in an L-shaped pattern between the pulleys. The rope can be installed so as to reciprocate between the pulleys, which allows the running direction of the runners rolling on each rack and the moving direction of the rope to be substantially on the same line and to fix each other. , The movement of the runner can be satisfactorily transmitted to the rope, and since the ropes that reciprocate are substantially parallel between the first and second pulleys and the return pulley, the opening / closing movement of the curtain should be guided straight. You can Also, since the curtain is pleated, when the curtain is fully opened, all the pleats of the curtain will be folded, which has the effect of minimizing the curtain pool, and in this fully opened state, the window Except for the rail frame on the side of the mechanism arranged on one side and the folded curtain, only the return pulley and the rope located between the return pulley and the first and second pulleys are provided, so There is an effect that it is possible to maintain a wide field of view without hindering Further, the return pulley and the pair of reciprocating ropes located between the return pulley and the first and second pulleys are respectively inserted into the pair of guide holes of the curtain, so that the curtain opened and closed by the rope is Will be guided by the rope,
That is, since this rope drives opening and closing of the curtain and also serves as a guide when opening and closing the curtain, there is an effect that a guide member for opening and closing the curtain is not required and the configuration is simplified. In addition, the rope is inserted into the guide hole of the curtain, and the curtain is opened and closed so as to be guided by the rope, and the curtain is opened and closed by the movement of the runner, so that the curtain is supported. It does not require a large number of runners, and it has a simple mechanism such as a flexible rack, gears, and pinion, and there is one runner that prompts opening and closing of the curtain with respect to the moving end of the curtain, and guides this curtain with a rope. Therefore, this has an effect that the number of parts can be reduced.

Further, according to the opening / closing device of the present invention, a plurality of L-shaped ropes are formed with one rope wound around each pulley and circularly moving in a substantially L-shaped pattern as one unit. Since the ropes can be linked together, it is possible to cope with long window openings.
Further, in this L-shaped rope unit, if the number of teeth and the pitch of the pinions that roll each rack are made different, it is possible to correspond to a substantially triangular window such as an automobile side window, That is, there is an effect that it is possible to configure a curtain having a window opening having an irregular shape such as the heights of the left and right window frames being different.

Further, according to the opening / closing apparatus of the present invention, it is possible to arrange the rail frame below and to raise the curtain so as to be in the closed state. In this case, for example, the rear of an automobile or the like. Since the rail frame can be attached to the lower window frame of the window, it is also possible to attach it to a vehicle with a rear window with a gentle inclination and the upper window frame is located directly above the rear seat, and to the rear seat. There is an effect that it is possible to configure a curtain that does not hit the head of a seated occupant and has little obstruction to the vehicle interior space. Further, according to this opening / closing device,
It is possible to set the mounting position of the rail frame in the vertical direction and the opening / closing direction of the curtain in the left-right direction, and there is an effect that the mounting place is not limited. Also, since the curtain is structured to move from one end to the other to open and close, there is an effect that a gap due to the curtain does not occur. There is an effect that suitable light shielding can be performed, and there is an effect that optimum light shielding can be performed.

[Brief description of drawings]

FIG. 1 is a partially cut front view showing a first embodiment of an opening / closing device according to the present invention.

FIG. 2 is an enlarged front view of the drive unit side of the switchgear according to the embodiment.

FIG. 3 is a plan view of the same.

FIG. 4 is an enlarged front view of a driven gear side of the switchgear according to the embodiment.

FIG. 5 is an enlarged front view of a flexible rack, a rail rack and a runner of the switchgear according to the embodiment.

FIG. 6 is a schematic view showing a wound state of the rope according to the embodiment.

FIG. 7 is a schematic perspective view showing a side portion of the curtain.

8 is a sectional view taken along line VII-VII in FIG.

9 is a sectional view taken along line VIII-VIII in FIG.

FIG. 10 is a schematic front view of a switchgear according to another embodiment.

[Explanation of symbols]

1 Switchgear 4 Drive 9 Drive gears 10, 18
First pulley 11,19 Second pulley 13 Driven gear 20,21 Return pulley 23 Flexible rack 23a Woven tape 23b Teeth 24 Rail rack 24b Upper surface 24c Lower surface 24d Teeth 25,26 Pinion 27,28
Runner 29A, 29B Rope 33 Curtain

Claims (1)

[Claims] 1. A clutch for interrupting power transmission when overloaded
A drive gear (9) rotatably driven by interlocking with a drive unit (4) having a built-in gear, and at least one driven gear (13) provided at a predetermined distance from the drive gear (9), The resin teeth (23b) are pressure-molded on the woven tape (23a) at a predetermined pitch so that the teeth (23b) face inward.
Sea urchin is formed into an endless ring shape, and the also drive gear (9) and sub Dohaguruma (13), the gear (9,1
It as a driven gear (13) constituting the juxtaposed pairs 3)
At least one or more flexible racks (23) meshed with each other and wound between the gears (9, 13), and each gear of the flexible rack (23) wound on the gears (9, 13) The flexible rack (23) is located between (9, 13) and has teeth (24d) having the same pitch as the flexible rack (23) on both surfaces (24b, 24c). A rail rack (24) in which each tooth (24d) of the both sides (24b, 24c) faces each tooth (23b) of the flexible rack (23), and at least one side (24b, 24b) of the rail rack (24).
24c), the teeth (24) of the rail rack (24)
rolling I intermesh respectively to the teeth of the flexible rack opposite to d) and teeth (24d) (23), rolling movement between the rack (23, 24) a pinion (25,2
6), wherein each gear and runners (27, 28) which is rotatably supported the pinion (25, 26), the flexible rack (23) constitutes a pair are wound (9, 13) At least one of
A first pulley (1 ) provided near the gears (9, 13)
0, 18) and adjacent to the first pulley (10, 18) ,
The gears (9, 1) near the first pulley (10, 18)
3) A second pulley (1 ) provided at a position slightly distant from the second pulley (1
And 1, 19), first and second that is provided in the vicinity of the gear (9, 13)
Return pulleys (20, 21) disposed at a predetermined distance from the pulleys (10, 11, 18, 19), the flexible rack (23) and the rail rack (2).
4) on the extension line of the movement track of the runner (27, 28) rolling between the first and second pulleys (10,
18, 11, 19) away from the first, second
The gear near the pulleys (10, 18, 11, 19)
(9, 13) a return pulley (37, 38) arranged in a position close to a pair of gears (13, 9) , the return pulley (20, 21) and a return pulley (37, 38).
38) and is wound between the first and second
Through the pulleys (10, 18, 11, 19), and is circulated circularly in an L-shaped pattern,
Also, the first and second pulleys (10, 18, 11,
19) and the return pulleys (37, 38), the ropes (29A, 29B) whose midway portions are fixed to the runners (27, 28) and the flexible rack (2).
3) and the rail rack (24) along one edge (3
3c) is fixed and each pleat is drilled individually.
The return pulley (20, 21) and first and second pulleys (10, 18, 11, 19) facing the return pulley (20, 21) in a pair of guide holes (34, 35) provided.
A pair of reciprocating ropes (29A, 29B) is inserted between
Guided and guided by the pair of reciprocating ropes (29A, 2
9B) a curtain (33) to which a part of the moving end (33d) is fixed, and an opening / closing device.