JPH05141160A - Opening or closing device - Google Patents

Abstract

PURPOSE:To provide an opening or closing device that is structured to check a stay of curtain cloth to the minimum, and capable of performing an opening or closing operation without obstructing visibility as well as to aim at the promotion of space-saving in a simple mechanism. CONSTITUTION:A rope 29 is stretched, in almost U-shaped form, across in space between a pair of feedback pulleys 20 and 21 being installed in an opposed position apart as far as a specified distance from each pulley via respective first and second pulleys 10, 18, 11, 19 being installed at both ends of a rail frame 2. This rope 29 is made annularly circulable in a U-shaped pattern. A moving end of a curtain 33 is locked to each side of the feedback pulleys 20, 21 of the rope 29, and further a part of this rope 29 is locked to two runners 27, 28 being rollably installed in both upper and lower surfaces of a rail rack 24 in the rail frame 2. These runners 27, 28 are engaged with the rail rack 24 and the a flexible rack 23, through which they are traveled in a direction contrary to each other at the same time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain opening / closing device provided in a rear 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 slidably provided on each rail, and the curtain is bridged between the upper and lower runners. Structuring structures are generally known. This conventional curtain has a structure in which two curtains are opened and closed left and right, and the two curtains are abutted and closed at the center.

[0003]

However, in the above-described conventional curtain structure, since the runners are slidable in only one row on each rail, the two curtains move on the same rail, As a result, when the curtains are fully closed, the two curtains do not overlap at the center and a gap is created. In addition, since a large number of runners are required to support the curtain, the number of parts increases, and when the curtain is opened to the left and right, the curtain fabric does not collect at the left and right edges, and there is a drawback that a curtain pool occurs. However, this also causes a problem of hindering the visibility of the driver. Further, in recent years, since the outer shape of the automobile has been molded into a streamlined shape, the inclination of the rear window has a gentle angle, and the upper window frame has a shape positioned right above the rear seat. There is a problem that the curtain rail hits the head of an occupant sitting in the back seat.

Therefore, in order to solve the above-mentioned problems, the present invention has a structure in which when the curtain is opened and closed, a gap due to the curtain does not occur, and the accumulation of the curtain fabric is suppressed to a minimum, thereby hindering the visibility. The purpose of the present invention is to provide a space-saving switchgear with a simple mechanism that does not have such a structure.

[0005]

Means for achieving the above object will be described with reference to FIGS. 1 to 5 corresponding to the embodiments. The opening / closing device 1 according to the present invention is arranged at both ends of the rail frame 2, and has a pair of gears 9 and 13 biased in mutually opposite directions and a woven tape 23a.
The resin teeth 23b are press-molded at a predetermined pitch to form an endless ring shape, and the gears 9 and 13 are formed.
It is located between the flexible rack 23 wound between them and the gears 9 and 13, is arranged along the flexible rack 23, and has teeth 24d having the same pitch as the flexible rack 23 on both surfaces 24b and 24c. And the teeth 24d on both sides of the flexible rack 23 are formed.
Rail rack 24 facing the teeth 23b of the rail rack 24, and teeth 24d of the rail rack 24 and teeth 23b of the flexible rack 23 facing the teeth 24d, which are respectively located on both sides 24b and 24c of the rail rack 24. A pair of pinions 25, 26 that mesh with each other and roll between the racks 23, 24, a pair of runners 27, 28 rotatably supported by the pinions 25, 26, and both ends of the rail frame 2. A pair of first pulleys 1 arranged near the pair of gears 9 and 13 located at 2a and 2b, respectively.
0 and 18, a pair of second pulleys 11 and 19 provided adjacent to the first pulleys 10 and 18, and the first pulleys.
And a pair of return pulleys 2 which are arranged at opposing positions apart from each of the second pulleys 10, 18, 11, and 19 by a predetermined distance.
0, 21 and the pair of return pulleys 20, 21 are wound, and the return pulleys 20, 21 are opposed to each other through the first and second pulleys 10, 18, 11, 19, respectively. The runners are erected in a U shape, cyclically move in an annular shape in the U shape pattern, and are fixed to the runners 27 and 28 that are located equidistant from the middle of the first and second pulleys. The rope 29 in which a flexible core material is installed for a predetermined length from the fixed position of 27 and 28 and one edge 33c is fixed to the outer surface 2c of the rail frame 2 and the return One of the pair of reciprocating ropes between the one return pulley 20 of the pulleys 20 and 21 and the first and second pulleys 10 and 11 facing the return pulley 20 has one end 33a of the other edge 33d. Fixed and other return pulley 1 and one of the pair of reciprocating ropes between the first and second pulleys 18 and 19 facing the return pulley 21. One rope that moves in the same direction as the one rope to which the one end 33a is fixed is The other edge 33
The other end 33b of d is fixed and both side edges 33a, 33
It is characterized in that it is provided with a curtain 33 having a pair of reciprocating ropes 29 inserted through a pair of guide holes 34 and 35 respectively formed at b at a predetermined interval.

[0006]

When the other edge 33d of the curtain 33 is grasped and opened / closed, both side edges 33a of the other edge 33d,
It is fixed to 33b and is wound between a pair of return pulleys 20 and 21, and also the first and second pulleys 10, 18, 1
1 and 19 through the rope 2 in an annular shape in a substantially U-shaped pattern
9 moves circularly. As a result, the pair of runners 27 and 28 fixed to the rope 29 move, and the pinions 25 and 26 that pivotally support the runners 27 and 28 roll on both sides 24b and 24c of the rail rack 24. The rolling of the pinions 25 and 26 rotates the flexible rack 23 and simultaneously rotates the pair of gears 9 and 13 around which the flexible rack 23 is wound. Each gear 9,
Since the urging force acts on the gears 13 in opposite directions to each other, the gears 9 and 13 can be stopped at arbitrary positions, and the curtain 33
Can be opened and closed as desired.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the opening / closing device 1 according to this embodiment is arranged such that the rail frame 2 is arranged above and the curtain 33 is moved in the vertical direction as shown in FIG. There is. The rail frame 2 has a substantially U-shaped cross section and is horizontally fixed to, for example, an upper window frame of a rear window of an automobile. Both ends 2a and 2b of the rail frame 2 are provided with housing cases 3 and 12, respectively.
Is provided. In each housing case 3, 12,
The gears 9 and 13 and the support portion 4 that supports the gears 9 and 13 are built in, respectively.

The gear 9 of one housing case 3 provided at one end of the rail frame 2 is, as shown in FIG.
It is rotatably supported by the support portion 4. This support 4
Is composed of a moving frame 14, a guide frame 15, and a tension coil spring 16. The moving frame 14 is formed in a substantially square shape, and one side portion 14a sandwiches the front and back of the gear 9 and
A gear 9 is rotatably supported on one side portion 14 a of the moving frame 14 by the support shaft 5.

The guide frame 15 is formed in a substantially U shape and is fixed in the housing case 3. The movable frame 14 is slidably arranged inside the guide frame 15. In addition, the side portion 15 of the guide frame 15
An adjusting screw 17 is inserted through the center of a, and a tension coil spring 16 is stretched between the tip of the adjusting screw 17 and the other side portion 14b of the moving frame 14. That is,
In the guide frame 15, the movable frame 14 is always urged by the tension coil spring 16 toward the side portion 15a of the guide frame 15.

Next, as shown in FIG. 2, a pair of pulleys 10 and 11 are provided in the vicinity of the gear 9 provided in the one housing case 3. These pulleys 1
0 and 11 are located at one end of the rail frame 2, one first pulley 10 is rotatably provided upward, and the second pulley 11 is arranged at a predetermined interval on the lower right side of the first pulley. It is provided.

Next, at the other end 2b of the rail frame 2,
A housing case 12 having the same shape as the housing case 3 at the one end 2a is provided, and the other gear 13 is provided and supported by the support portion 4. Since the support portion that supports the other gear 13 has the same structure as the support portion 4 that supports the one gear 9 described above, the same reference numerals as those of the support portion 4 are used in the description, and the description thereof is omitted.

Next, as shown in FIG. 1, a pair of pulleys 18 and 19 are provided near the teeth 13 provided on the other housing case 12. These pulleys 1
Reference numerals 8 and 19 are first gears provided in the vicinity of the one gear 9 described above.
And the second pulleys 10 and 11 are paired, one first pulley 18 is provided on the upper side, and the second pulley 19 is provided on the lower left side of the first pulley 18. Further, below the both ends 2a, 2b of the rail frame 2, a predetermined distance facing each of the first and second pulleys 10, 18, 11, 19 provided on the both ends 2a, 2b of the rail frame 2, for example, an automobile As shown in FIG. 1, a pair of return pulleys 2 are provided at positions separated from each other by the height of the rear window.
0 and 21 are provided. These return pulleys 20, 2
The reference numeral 1 generally includes two pairs of pulleys 20a and 21a and brackets 20b and 21b that rotatably support these pulleys 20a and 21a. Then, the brackets 20b and 21b are fixed near both ends of the lower window frame of the automobile such as the rear window.

Next, the flexible rack 23 is wound between the pair of gears 9 and 13 described above. The flexible rack 23 is formed by endless ring-shaped by pressing hard resin teeth 23b at a predetermined pitch onto a woven tape 23a formed of nylon fiber or the like. That is, the gear 9 on one side and the gear 13 on the other side can be simultaneously rotated by the flexible rack 23.
The tension coil springs 16 connected to the coil 13 are prevented from being biased by pulling in opposite directions.

Next, the rail frame 2 is located between the flexible racks 23 that rotate inwardly with the teeth 23b in an elliptical shape, that is, between the gears 9 and 13, and the flexible racks 23 are also located. Rail rack 2 along
4 are provided. The rail rack 24 includes an upper surface 2 of a long plate-shaped substrate 24a as shown in FIGS.
The same structure as the flexible rack 23 described above is attached to both surfaces of the lower surface 4b and the lower surface 24c. That is, both tooth surfaces 24b and 24c of the rail rack 24 face the teeth 23b of the flexible rack 23 and are teeth 24d having the same pitch as the pitch of the teeth 23b of the flexible rack 23.

As shown in FIG. 3, a pair of pinions 25 and 26 are arranged between the tooth surfaces of the rail rack 24 and the flexible rack 23 which face each other. Each pinion 25, 26 has the same tooth pitch, and the rail rack 2
4 are located on the upper surface 24b side and the lower surface 24c side, respectively,
The rail rack 24 and the flexible rack 23 are adapted to mesh with each other and roll between the racks 23 and 24. That is, when the flexible rack 23 rotates around the rail rack 24, the pinions 25 and 26 are moved to the upper surface 24 of the rail rack 24.
b and the lower surface 24c are moved at the same speed and the same distance in opposite directions. In addition, each pinion 25,
As shown in FIG. 1, 26 are arranged so as to be located at equal distances from both ends of the rail rack 24 and the rail frame 2.

Next, the pinions 25 and 26 are provided with runners 27 and 28, respectively. Each of the runners 27, 28 has a substantially disk-shaped base with a pivot protruding from the center of the back surface, and a projection 27 with a mounting hole formed on the front surface.
a and 28a are provided. And the runner 27,
The pivot 28 is rotatably attached to the hole of the rotation center of the pinion 25, 26. A rope 29 is fixed to the projecting pieces 27a and 28a of the runners 27 and 28.

As shown in the schematic view of FIG. 4, this rope 29 is wound between the return pulleys 20 and 21 with the pair of return pulleys 20 and 21 as folding ends.
The middle is laid over the first pulleys 10 and 18 and the second pulleys 11 and 19 located at both ends of the rail frame 2,
It is erected in a substantially U shape. In other words, this rope 29
Circulates circularly in a U-shaped pattern, and a part of the outer peripheral rope 29a bridged between the first pulleys 10 and 18 moves on the rail rack upper surface 24b. Of the inner peripheral rope 29b which is fixed by being inserted into the protrusion 27a of the second runner 28 and which is bridged between the respective second pulleys 11 and 19 is attached to the protrusion 28a of the other runner 28 which moves on the lower surface 24c of the rail rack. It is designed to be inserted and fixed.

The rope 29 is composed of two ropes made of resin such as nylon,
A flexible core material such as a wire is provided in a predetermined length to which the runners 27 and 28 are fixed from each one end 30 and 31 connecting each rope.

Two ends 3 to which each rope is connected
One side 30 of 0 and 31 is one side of the rope 29 which becomes a reciprocating pair between the one return pulley 20 and the first and second pulleys 10 and 11 facing the pulley 20, that is, the first side in the present embodiment. Is located on the rope 29 on the outer peripheral side 29a between the pulley 10 and the one return pulley 20, and the other connection end portion 31 faces the other return pulley 21 and the first and second return pulleys 21. One of the ropes 29 forming a reciprocal pair between the pulleys 18 and 19 of
The rope that moves in the same direction as the one connection end 30 on the side, the second pulley 19 and the other return pulley 2 in this embodiment.
It is located on the inner circumference side rope 29b between 1 and 1.
The positions of these connection ends 30 and 31 are determined by the rail frame 2
Are set to have the same distance from
Alternatively, it can move in the same direction only between the second pulleys 10, 18, 11 and 19 and the return pulleys 20 and 21, and its moving range is the longest within the moving range of the runners 27 and 28. .. That is, the rope 29 on the outer peripheral side 29a where the one connection end 30 of the rope 29 is provided is one runner 2 that moves on the upper surface 24b of the rail rack 24.
7 is an extension of the fixed rope 29, and the rope 2 on the inner peripheral side 29b where the other connecting end portion 31 is provided
9 is an extension of a rope 29 to which the other runner 28 moving on the rail rack lower surface 24c is fixed. Then, as shown by the thick line in FIG. 4, one runner 2
The above-described core material is installed in the rope 29 between the connection end portion 7 and the one connection end portion 30, and the core material is installed in the rope 29 between the other runner 28 and the connection end portion 31 on the other side.

According to this rope 29, when one runner 27 is located on the left side in FIG. 4, since the rope 29 is connected and formed in a ring shape, the other runner 28 is located on the right side in the figure. The connecting end portions 30 and 31 are located below, in other words, the positions closest to the return pulleys 20 and 21, and when one runner 27 is located on the right side in the drawing, the other The runner 28 is located on the left side in the drawing, and the connection end portions 30 and 31 are located closest to the rail frame 2.

Next, a curtain 33 is attached to the rail frame 2 and the rope 29 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. 5, a pair of guide holes 34 and 35 are provided for each pleat on both side edges 33a and 33b of the curtain 33, respectively.
A pair of ropes 29 that reciprocate between the pulley 21 and the first and second pulleys 10, 18, 11, and 19 are inserted respectively. These guide holes 34, 35 are obtained by performing an embroidery process 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 where the guide holes 34 and 35 will be formed. The upper edge 3 as one edge of the curtain 33
3c is fixed to the lower side surface 2c as the outer side surface of the rail frame 2 described above. In addition, a support plate such as a metal plate is installed inside the lower edge portion 33d as the other edge portion of the curtain 33, that is, the lowermost stage of the pleats.
3 is supported straight so that it does not bend at the center. Then, the one side 34 of each of the pair of guide holes 34, 35 formed on the both side edges of the bottom of the pleat.
In addition, the connection ends 30 and 31 of the rope 29 are respectively fixed. That is, the curtain 33 has the upper edge 33c as a fixed end and the lower edge 33d as the rope 29.
It moves up and down according to the movement of.

Next, the operation of the switchgear 1 constructed as described above will be described. First, one runner 27 of each runner 27, 28 is in the vicinity of the right end of the rail rack 24, near the other gear 13, and the other runner 28 is in the vicinity of the left end of the rail rack 24, near the one gear 9. At this time, 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 tension urging force of the tension coil spring 16 always acts on the gears 9 and 13, the flexible rack 23 does not bend, the gears 9 and 13 do not rotate, and the curtain 33 has its own weight. Will never fall.

Next, when closing the curtain 33, the lower edge portion 33d of the curtain 33 is grasped and the lower edge portion 33d is pulled down to perform the closing operation. During this closing operation, the rope 2 fixed to both side edges 33a, 33b of the curtain 33
9, the runners 27, 28 move, and the pinions 25, 26 move the upper and lower surfaces 24b, 2 of the rail rack 24.
Roll 4c. Then, the flexible rack 23 is rotated by rolling of the pinions 25 and 26, and the gears 9 and 13 at both ends are rotated.

When the curtain 33 is lowered to the lowermost position, that is, the return pulleys 20 and 21 and brought into a fully closed state, one of the runners 27, 28 moving via the rope 29 moves to the vicinity of the left end of the rail rack 24. The other runner 28 moves to the vicinity of the right end of the rail rack 24.

Next, to open the curtain 33 from the fully closed state, the lower edge portion 33d of the curtain 33 is grasped and lifted upward to perform the opening operation. In this opening motion,
The rope 29 fixed to both side edges 33a and 33b of the lower edge portion 33d of the curtain 33 has a core material installed between the connection end portions 30 and 31 and the runners 27 and 28. The rope 29 circulates upward without sagging. That is, the rope 29 containing this core material
Each runner 27, 28 is moved by each pinion 2
5 and 26 roll on both sides 24b and 24c of the rail rack 24. Further, when the pinions 25 and 26 roll, the flexible rack 23 does not sag due to the tension of the gears 9 and 13, so that the pinions 25 and 26 roll without meshing with the racks 23 and 24.

When the curtain 33 is stopped halfway to be in the half-opened state, the gears 9 and 13 are the same as in the fully opened state.
However, since the flexible rack 23 does not rotate due to the pulling force of the tension coil spring 16 at all times, the flexible rack 23 can be stopped at any position, and the curtain 33 does not descend from that position.

Therefore, the opening / closing device 1 configured as described above
Then, the flexible rack 23 for moving the runners 27, 28 along the rail frame 2 has a shape with a small thickness in which hard teeth are pressure-molded on the woven fabric tape 23a having high flexibility. Since the gears 9 and 13 for rotating can be formed to have a small diameter, the rail frame 2 can be formed to a thin shape, so that the rail frame 2 can be attached only to one window frame of a rear window of an automobile, for example. , Space saving can be achieved,
The window opening of the rear window is not obstructed.

Further, since the curtain 33 is pleated, when the curtain 33 is fully opened, all the pleats of the curtain 33 are folded, so that the curtain pool is minimized. Further, since the opening and closing direction of the curtain 33 is the vertical direction, it is possible to correspond to the inclination angle of sunlight, and it is possible to optimally shield light.

Further, the curtain 33 has guide holes 34 and 35.
Since the curtain 33 is formed and inserted into the rope 29 and the curtain 33 is opened and closed by the movement of the runners 27 and 28, a large number of runners 27 and 28 that support the curtain 33 are not required, thereby reducing the number of parts. be able to.

In this embodiment, the rail frame 2 is arranged above, and the curtain 33 is lowered to be in the closed state. However, the rail frame 2 is arranged below and the curtain 33 is closed. The structure may be such that the closed state is obtained by raising. 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 has a gentle inclination and the upper window frame is located directly above the rear seat, it can be attached to the rear seat. Do not hit the head of a passenger seated in.

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.

[0033]

As described above, in the opening / closing device according to the present invention, the runner for opening / closing the curtain is moved by the flexible rack having a small thickness in which the hard teeth are pressure-molded on the woven fabric tape having a high flexibility. Since it is performed, the gear (driving gear) for rotating the flexible rack can be formed to have a small diameter, and the rail frame for rotating the flexible rack can be formed to have a small diameter.
In addition, since this flexible rack and the runners that move by this flexible rack are housed in one rail frame, for example, it can be mounted only on the upper window frame of the rear window of the automobile, and space can be saved.
This has the effect of not obstructing the window opening of the rear window.

Further, when the curtain is opened and closed in the vertical direction, for example, there is an effect that light can be shielded according to the inclination angle of sunlight.

Further, since the curtain is moved from one end to the other end to open and close, or the pair of left and right curtains are overlapped with each other, there is an effect that no gap is generated by the curtain.

[Brief description of drawings]

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

FIG. 2 is an enlarged front view of a part of the switchgear according to the embodiment.

FIG. 3 is an enlarged front view of a flexible rack, a rail rack, and a runner of the opening / closing device according to the embodiment.

FIG. 4 is a schematic view showing a wound state of the rope according to the embodiment.

FIG. 5 is a schematic perspective view showing a side portion of the curtain.

[Explanation of symbols]

1 Opening / closing device 2 Rail frame 2a Outer side surface (lower side surface) 4 Drive unit 9,13 Gears 10,1
8 First pulley 11,19 Second pulley 20,2
1 Return pulley 23 Flexible rack 23a
Woven tape 23b Teeth 24 Rail rack 24b Upper surface 24c
Lower surface 24d Tooth 25,2
6 Pinion 27, 28 Runner 29 Rope 33 Curtain 33a
One side edge 33b The other side edge 33c
One edge (upper edge) 33d The other edge (lower edge) 34,3
5 guide holes

Claims (1)

[Claims] 1. A pair of gears (9, 13) which are arranged at both ends of a rail frame (2) and are biased in mutually opposite directions, and a woven cloth tape (23a) with resin teeth ( 23b) is pressure-molded at a predetermined pitch to form an endless ring shape, and between the flexible rack (23) wound around the gears (9, 13) and the gears (9, 13). Is located alongside the flexible rack (23) and is located on both sides (2
4b, 24c) are formed with teeth (24d) having the same pitch as the flexible rack (23), and the teeth (24
d) Teeth (23b) of the flexible rack (23)
A rail rack (24) facing each other, and each tooth (24) of the rail rack (24) located on both sides (24b, 24c) of the rail rack (24).
d) and the teeth (23b) of the flexible rack (23) facing the teeth (24d), respectively,
A pair of pinions (25, 26) rolling between the racks (23, 24), a pair of runners (27, 28) pivotally supported by the pinions (25, 26), A pair of first pulleys (10, 18) arranged in the vicinity of a pair of gears (9, 13) located at both ends (2a, 2b) of the rail frame (2), and the first pulleys. A pair of second pulleys (11, 19) provided adjacent to (10, 18), and each of the first and second pulleys (10, 18, 11, 1)
9) is wound around between a pair of return pulleys (20, 21) arranged at a predetermined distance from each other, and the return pulleys (20, 21). , 21) through the first and second pulleys (10, 18, 11, 19) at the opposite positions, and are erected in a substantially U shape, and circularly move in a U shape pattern, and , Fixed to each of the runners (27, 28) located equidistant from the middle of each of the first and second pulleys, and has flexibility for a predetermined length from the fixed position of each runner (27, 28) Rope with core material (2
9) and one edge portion (33c) is fixed to the outer side surface (2c) of the rail frame (2), and one of the return pulleys (20, 21) is connected to the return pulley (20). One end (33a) of the other edge portion (33d) is fixed to one of the pair of reciprocating ropes between the first and second pulleys (10, 11) facing the return pulley (20), and One of the pair of reciprocating ropes between the return pulley (21) and the first and second pulleys (18, 19) facing the return pulley (21), the one end (33a) of which is fixed; The other end (33b) of the other edge portion (33d) is fixed to one rope that moves in the same direction, and a pair of guide holes is formed at both side edges (33a, 33b) at predetermined intervals. (34, 35) and the pair of ropes (2 An opening / closing device comprising: a curtain (33) in which 9) is inserted.