JPH0724616B2 - Switchgear - Google Patents

Description

TECHNICAL FIELD The present invention relates to a curtain opening / closing device provided in a rear window of an automobile, for example.

[Conventional technology]

The curtains installed on the rear windows of automobiles generally have a structure in which rails are attached to the upper and lower window frame parts, a plurality of runners are slidably mounted on each rail, and the curtains are stretched between these upper and lower runners. Are known.

In addition to the manual curtain structure in which a person manually opens and closes, this conventional curtain has recently been equipped with a mechanism for opening and closing the curtain by using a motor or the like and controlling the power on / off of the motor. The curtain was opened and closed from the center to the left and right.

In addition, since the installation space of a wind curtain of an automobile cannot be secured sufficiently, the curtain rail is configured with one curtain, and the curtain used is generally a thin material such as a lace curtain and is formed in a light weight, and the curtain rail is thin. Is forming.

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional curtain opening / closing mechanism, the rails are composed of one rail at the top and the bottom rail, respectively, and a plurality of runners are slidable in a row, so that the two curtains move on the same rail. Therefore, when the curtains are closed, the two curtains do not overlap each other in the center, and there is a drawback that a gap is generated. Therefore, it is not suitable for sun protection in summer.

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.

Therefore, in order to solve the above-mentioned problems, it is an object of the present invention to provide a space-saving opening / closing device that does not generate a gap due to the curtain when the curtain is opened / closed and has a simple mechanism.

[Means for Solving the Problems]

Next, means for achieving the above object will be described with reference to FIGS. 1 to 6 corresponding to the embodiment.

The opening / closing device 1 of the present invention includes a pair of guide slits 10 and 11.
Formed on the rail frame 2, a pair of gears 9 and 13 arranged at both ends 2a and 2b of the rail frame 2, and a pair of gears 9 and 13 provided on at least one of Biasing means 16 biased in opposite directions
Then, the hard resin teeth 23b are pressure-molded on the belt-shaped body 23a at a predetermined pitch, and each tooth 23b is formed into an endless ring shape so that the teeth 23b face inward. The flexible rack 23 meshed with each other and wound between the gears 9 and 13, and the flexible rack 23 wound around the gears 9 and 13
Located between the gears 9 and 13 of the rail frame 2 and dividing the guide slits 10 and 11 of the rail frame 2 into the flexible rack 23.
And the teeth 24d having the same pitch as the flexible rack 23 are provided on both sides of each of the teeth 2 on both sides.
4d rail rack 24 facing each tooth 23b of the flexible rack 23, and located on both sides 24b, 24c of the rail rack 24,
A pair of pinions 25 that roll in mesh with the teeth 24d of the rail rack 24 and the teeth 23b of the flexible rack 23 facing the teeth 24d, and move in mutually opposite directions between the racks 23 and 24 at the same time. , 26 and a pair of front runners 27, 28 which are rotatably supported by the pinions 25, 26 and slidable by the guide slits 10, 11 of the rail frame 2, respectively.
And a plurality of follower runners 31 slidably provided in the pair of guide slits 10 and 11 of the rail frame 2 and slidingly moving to follow the leading runners, and the leading runners 27 and 28, respectively. One on each side edge 33
A pair of curtains 33, 34 in which the corners 33c, 34c of the a, 34a are respectively locked, and the edges adjacent to the one side edges 33a, 34a are respectively locked by the follower runner 31.
It is characterized by having and.

[Action]

The rotation of one gear 9 causes the flexible rack 23, which is wound around the other gear 13 and meshes with each gear 9, 13 to rotate within the rail frame. During this rotation,
Biasing means 16 provided on at least one of the gears
As a result, the flexible rack 23 rotates without slack.

Rail rack 24 arranged between flexible racks 23
The pair of pinions 25, 26 disposed on both sides of the rail rack 24 are arranged between the flexible rack 23 on both sides of the rail rack 24 by the rotation of the flexible rack 23.
The pair of front runners 27, 28 pivotally supported by the pinions 25, 26 are engaged with the rail frame 2
The respective guide slits 10 and 11 are simultaneously slid and moved.

Then, to the leading runners 27, 28, the respective corner portions 33c, 34c of the one side edge facing each other are locked, and the edge portion adjacent to this one side edge, for example, the upper edge portion is above the guide slits 10, 11. By being locked by the slidable follower runner 31, the pair of curtains 33, 34 can be opened and closed left and right.

〔Example〕

First, in the opening / closing device 1 according to the first embodiment, as shown in FIG.
It is designed to open and close 4.

The rail frame 2 is horizontally fixed to, for example, an upper window frame of a rear window of an automobile. As shown in FIG. 5, the rail frame 2 has a substantially E-shaped cross section formed by drawing plastic or metal, and has two grooves formed in the center of the rail frame 2. A rib plate 2c is formed on the. And the opening divided into two by this rib plate is a pair of guide slits.
Forming 10,11.

A housing case 3 is provided at one end of the rail frame 2, and a drive unit 4 is arranged in the housing case 3. The 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 has an output shaft 5a extending obliquely upward.
A worm gear 8 is provided in the. 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 as one gear of a pair of gears at both ends of the rail frame 2 is interlockingly connected to the drive unit 4. As shown in FIG. 2B, the drive gear 9 is coaxially supported by the clutch gear 7 and is provided via the clutch gear 7 and the clutch to transmit the power of the motor 5. It has become so. The drive gear 9 is adapted to mesh with a flexible rack 23 described later.

Next, the other end 2b of the rail frame 2 is provided with a housing case 12 having the same shape as the housing case 3 in which the drive section 4 is provided, and a driven gear 13 as the other gear.
Is provided. The driven gear 13 is formed in substantially the same shape as the drive gear 9, and is rotatably supported by a support shaft 18 on one side portion 14a of a substantially frame-shaped moving frame 14 as shown in FIG. . The moving frame is slidably arranged inside a substantially U-shaped guide frame 15 fixed to the housing case 12. Further, one end of a tension coil spring 16 as an urging means is connected to the other side portion 14b of the moving frame 14. 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. That is, in the guide frame 15, the moving frame 14 is always urged by the tension coil spring 16 toward the side portion 15a of the guide frame 15.

Next, a flexible rack 23 is wound around the driven gear 13 and the drive gear 9 described above.

The flexible rack 23 includes a woven tape 23 as a band, which is braided using a synthetic resin fiber such as nylon fiber.
A tooth 23b made of a hard synthetic resin molded body is press-molded on the woven tape 23a at a predetermined pitch so as to surround the woven tape 23a, thereby forming an endless ring shape.
That is, the drive gear 9 and the driven gear 13 mesh with the flexible rack 23, and the rotation of the drive gear 9 is transmitted to the driven gear 13 via the flexible rack 23 to rotate in the rail frame 2 and The slack of the flexible rack 23 is prevented by the tension coil spring 16 provided on the driven gear 13 side.

Next, the rail frame 2 is positioned between the flexible racks 23 that rotate inwardly with the gears 23b in an elliptical shape, and also along the flexible racks 23.
24 are provided. As shown in FIGS. 2 to 4, this rail rack 24 uses the above-mentioned long flat rib plate 2c of the rail frame 2 as a substrate, and the above-mentioned flexible rack 23 on both upper and lower surfaces 24b and 24c. The same structure is attached. That is, this rail rack
The two gears 24b, 24c of 24 are opposed to the teeth 23b of the flexible rack 23, and the teeth 23b of the flexible rack 23 are also provided.
The teeth 24d have the same pitch as the pitch of.

As shown in FIG. 4, a pair of pinions 25 and 26 are disposed between the tooth surfaces of the rail rack 24 and the flexible rack 23 that face each other. The pinions 25 and 26 have the same tooth pitch, are located on the upper surface 24b side and the lower surface 24c side of the rail rack 24, and are engaged with the rail rack 24 and the flexible rack 23, respectively.
It is designed to roll between 23 and 24. That is, the flexible rack 23 is rotated around the rail rack 24 by the drive unit 4 and the drive gear 9 so that each pinion 25, 2 is rotated.
6 is configured to move the upper surface 24b and the lower surface 24c of the rail rack 24 at the same speed and the same distance in opposite directions.
The pinions 25 and 26 are arranged at equal distances from both ends of the rail rack 24 and the rail frame 2.

Next, these pinions 25 and 26 are provided with leading runners 27 and 28, respectively, as shown in FIG. Each of the leading runners 27, 28 is provided with a pivot 39, 30 protruding in the center of the back surface of a substantially disk-shaped base having grooves 27b, 28b formed on the circumferential surface, and a protrusion having a mounting hole formed in the front surface. Pieces 27a and 28a are provided. And the leading runners 27, 28 have their axes 29,
30 is rotatably attached to the hole of the rotation center of the pinions 25 and 26, and the grooves 27b and 28b are slidably engaged with the guide slits 10 and 11 of the rail frame 2, respectively. . That is, these top runners 2
7, 28 are adapted to move along the guide slits 10, 11 of the rail frame 2 by the rolling of the pinions 25, 26.

A plurality of follower runners 31 are slidably provided in the guide slits 10 and 11 of the rail frame 2 with which the leading runners 27 and 28 engage.

These follow-up runners 31 have substantially the same shape as the above-mentioned leading runners 27, 28, and are provided with a projecting piece 31a having a mounting hole formed on the surface of the base portion in which a groove 31b is formed on the peripheral surface, as shown in FIG. As described above, no pinion that meshes with each rack 23, 24 is provided, and only the guide slits 10, 11 are slid.

These follower runners 31, as shown in FIG.
A predetermined number is provided between the leading runner 27 and the driven gear 13 on the rail rack upper surface 24b, and between the other leading runner 28 and the drive gear 9 on the rail rack lower surface 24c.

Next, the curtains 33, 34 are composed of a pair of two curtains.
Each curtain is formed in a substantially rectangular shape and a substantially symmetrical shape.

A plurality of S-shaped hooks (not shown) are attached to the upper edge portion 33b of the curtain at predetermined intervals, and these hooks are used for the follower runner 31 and the leading runners 27, 2 described above.
It is supposed to be locked in 8. That is, a pair of curtains 33, 34 are hung on these runners 27, 28, 31. In the hanging state, the pair of hooks attached to the corners 33c, 34c on the upper edges 33b, 34b of the curtains 33, 34 facing each other on the side edges 33a, 34a are attached to the front runners 27, 2 respectively.
Berthed to 8.

Next, the operation of the switchgear 1 configured as above will be described.

First, when one of the leading runners 27, 28 is located near the left end of the rail rack 2 and close to the driven gear 13, the flexible rack 23 causes the other leading runner 27 to move.
28 is a position near the right end of the rail rack 2 and close to the drive gear 9, and the leading runners 27, 28 and the follower runners 31 in the same guide slits 10, 11 as the leading runners 27, 28 are closely spaced. The curtains 33, 34 are located at the left and right ends and are 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 urged by the tension coil spring 16. Does not cause slack in the flexible rack 23, the curtain 33 does not move from that position.

Next, when the power switch is turned on and the motor 5 of the drive unit 4 is activated, and the drive gear 9 rotates via the intermediate gear 6 and the clutch gear 7, the flexible rack 23 moves between the drive gear 9 and the driven gear 13. Rotate. Then, the pair of pinions 25, 26 rolls on the upper surface 24b and the lower surface 24c of the rail rack 24, and one of the leading runners 27, 28 provided on each pinion 25, 26 is the upper surface of the rail rack 24. The side 24b moves to the right, and the other front runner 28 moves the lower surface side 24c of the rail rack 24 to the left.

Then, each curtain 33, 34 locked to these leading runners 27, 28 starts to expand, the follower runner 31 on the guide slits 10, 11 also slides on the guide slits 10, 11, and starts to widen each interval, One opposite side edge 33a, 3 of each curtain 33, 34
4a approaches, and the curtains 33 and 34 are closed.

Since the respective runners 27, 28, 31 of the respective curtains 33, 34 slide and move through the pair of guide slits 10, 11, respectively, the opposing one side edges 33a, 34a do not abut, and the respective curtains 33, 34
One of the leading runners 27, 28 moves to the right of the rail frame 2 and the other leading runner 28 moves to the left of the rail frame 2, respectively.

Then, each curtain 33, 34 becomes a double curtain and is in a fully closed state.

When fully closed, the leading runners 27 and 28 stop moving, and the pinions of these runners 27 and 28 also stop rolling. Then, the rotation of the flexible rack 23 meshing with the pinions 25 and 26 is also stopped. At this time, the motor 5 continues to rotate with the power switch still turned on, but since the clutch is provided between the drive gear 9 and the clutch gear 7, the excessive load of the motor 5 is driven. It is not transmitted to the gear 9 side. That is, even if the off operation of the power switch is delayed, each part is not burdened.

Therefore, according to the opening / closing device 1 configured as described above, the pair of leading runners 27, 28 and the follower runner 31 that move the rail frame 2 left and right do not move on the same track, but a pair of guides. Since the runners are rubbed against each other by moving the slits 10 and 11, the one side edges 33a and 34a of the opposing curtains 33 and 34 do not abut, and the curtains 33 and 34 overlap at the center. In addition, the curtains 33, 34 can be overlapped within the moving range of the leading runners 27, 28, and a double curtain can be constructed as shown in FIG.

Further, since the racks 23 and 24 for moving the drive unit 4 which is a drive source and the runners 27 and 28 to the left and right are housed in one rail frame 2, for example, one of the window frames of the rear window of an automobile is provided. Only by installing it, it is possible to save space and not obstruct the window opening of the rear window.

Further, since the flexible rack 23 for moving the runners 27, 28 is formed by press-molding the teeth 23b on the woven fabric tape 23a having high flexibility, the thickness is small, and the gear that rotates the flexible rack 23 is rotated. Can be formed in a small size, and the rail frame 2 can be formed in a small diameter. From this, as described above, the window opening of the rear window is not obstructed and the space can be saved.

In this embodiment, the rail frame 2 is provided with its guide slit.
The example in which the mounting curtains 33 and 34 are configured to be opened and closed so that 10 and 11 face the front has been described. The pair of guide slits 10 and 11 are mounted downward as shown in FIG. Curtains 33 and 34 may be hung on the.

Although the rail frame 2 in this embodiment is formed in a rectangular E-shape, the rail frame 102 has a substantially triangular shape as shown in FIG. 9 and a stepped rail frame 202 as shown in FIG. It may have a shape.

Further, in the opening / closing device 1 of the present embodiment, an example in which a driving motor is provided at one end of the rail frame 2 and the curtain is opened and closed by using this motor as a drive source has been described. The urging means 16 provided at the other end of 2 may be disposed at both ends and manually opened and closed. In this case, if one of the two curtains is opened / closed, the other is opened / closed simultaneously.

〔The invention's effect〕

As described above, the opening / closing device according to the present invention moves the runner for opening / closing the curtain by using a flexible rack having a small thickness in which hard teeth are pressure-molded on a highly flexible band, so that this flexible The pair of gears for rotating the 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.

Further, according to this opening / closing device, the mechanism such as the gear, the flexible rack, and the rail rack has a simple structure, and the runner that moves by these is housed in one rail frame. Since it is only attached to the upper window frame of the window, there is an effect that space can be saved and the window opening of the rear window is not obstructed.

Furthermore, instead of the pair of leading runners and the follower runners moving on the rail frame moving on the same track, by moving the pair of guide slits, the respective runners are rubbed against each other. The opposite side edges of the locked curtains do not come into contact with each other, and the curtains can overlap each other in the center, so that there is an effect that a gap due to the curtains does not occur. Then, the curtains can be overlapped within the moving range of the leading runner, and the light-shielding property can be improved, and a double curtain can be configured.

In addition, each pinion of each top runner, by the flexible rack and the rail rack having teeth of the same pitch,
It is possible to move at the same speed and at the same distance in opposite directions, and to move at the same time.
Alternatively, there is an effect that the opening can be performed in the left-right direction from the center.

Further, since the gear is provided with the biasing means, the flexible rack is prevented from loosening and is wound between the gears, so that the rotation of the gear is surely transmitted and the flexible rack and the rail are The pair of pinions that roll by each of the racks surely mesh with each other, and the movement of the flexible rack is reliably transmitted, and each pinion can move between the racks at the same time.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a switchgear according to the present invention, FIG. 2 (a) is an enlarged front view of the inside of a drive unit side of the switchgear according to the embodiment, and FIG. 2 (b) is the same plane. Fig. 3 is an enlarged front view of the inside of the driven gears of the opening / closing device according to the same embodiment, Fig. 4 is an enlarged front view of the flexible rack, rail rack and leading runner of the opening / closing device according to the same embodiment. FIG. 4 is a sectional view taken along line VV in FIG. 4, and FIG.
FIG. 7 is a sectional view taken along the line VI-VI in FIG. 7, FIG. 7 is a plan view of a switchgear according to the same embodiment, and FIGS. 8 to 10 are schematic cross-sectional views of switchgear according to other embodiments. 1 ... Opening / closing device, 2 ... Rail frame, 2a ... One end, 2b ... Other end, 9 ... One gear (driving gear), 10,11 ... Guide slit, 13 ... Other gear (driven) Gears), 16 ... Biasing means (tensile coil spring), 23 ... Flexible rack, 23a ... Band, 23b ... Tooth, 24 ... Rail rack, 24b ... Top surface, 24c ... Bottom surface, 24d ... Tooth, 25,26 …… Pinion, 27,28 …… Runner, 31 …… Following runner, 33,34 …… Curtain, 33a, 34a …… One side edge, 33c, 34c …… Corner.

Claims (1)

[Claims] 1. A rail frame (2) having a pair of guide slits (10, 11) formed therein, and a pair of gears (9, 13) arranged at both ends (2a, 2b) of the rail frame (2). ), A biasing means (16) provided on at least one of the pair of gears (9, 13) and biasing in the opposite direction to the other, and a hard resin on the strip (23a). Teeth (23b) are crimped and molded at a predetermined pitch, and each tooth (23b) is formed into an endless ring shape so as to be inward, and meshes with the pair of gears (9, 13), respectively. Positioned between the flexible rack (23) wound between the gears (9, 13) and the gears (9, 13) of the flexible rack (23) wound around the gears (9, 13). Then, the guide slits (10, 11) of the rail frame (2) are divided and arranged along the flexible rack (23). Both sides are provided with teeth (24d) having the same pitch as the flexible rack (23), and the teeth (24d) on both sides face the teeth (23b) of the flexible rack (23). ) And each of the teeth (24d) of the rail rack (24) and the flexible rack (23) facing the teeth (24d), respectively, located on both sides (24b, 24c) of the rail rack (24). Teeth (2
3b) meshes with each and rolls, and each rack (23, 2
4) A pair of pinions (25, 26) that move in mutually opposite directions at the same time, and pivotally supported by each of the pinions (25, 26), and each of the guide slits of the rail frame (2). A pair of front runners (27, 28) slidable on (10, 11) respectively, and a pair of guide slits (1) on the rail frame (2).
Plural follower runners (31) that are slidably mounted on each of (0, 11) and slide and move following the leading runner.
And each of the leading runners (27, 28) is locked near the corners (33c, 34c) of the facing one side edges (33a, 34a), respectively, and the one side edges (33a, 34a). ), A pair of two curtains (33, 34) each of which has an edge portion adjacent to the following runner (31), and a pair of curtains (33, 34).