JPH10331556A - Curved roll curtain device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sufficiently secure privacy and a glare-proofing property by installing a flexible winding cylinder on a curved fixed shaft installed along an inside surface of a curved window glass and wonding curtain cloth on an outer periphery of the winding cylinder. SOLUTION: When curtain cloth 5 is lowered by drawing out a drawing knob 27 of a lock mechanism 20 and releasing engagement of a gear 21 and a lock pin 22, only a winding cylinder 4 is rotated and the curtain cloth 5 is drawn out from the cylinder 4. Additionally, when a radius of the cylinder 4 is made the same in all the range, the curtain cloth 5 is also lowered at the same speed and as a collar 9 is integrally rotated in the drawing direction with the cylinder 4, the right end 7b side of a winding spring 7 is rotated in the drawing direction. Additionally, when the drawing knob 27 is made free at the point of time when the curtain cloth 5 is lowered to a desired position, the cylinder 4 is locked with the collar 9 and the curtain cloth 5 stops at a desired position. Consequently, it is possible to sufficiently secure privacy and a glare-proofing property by arranging the curtain cloth 5 along a curved window glass 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a curved roll curtain device.

[0002]

2. Description of the Related Art Some automobiles and railway vehicles have a window curtain provided with a roll curtain device for the purpose of ensuring privacy and anti-glare properties. This roll curtain device attaches a straight take-up shaft to the top of the window glass,
The curtain cloth is wound around the winding shaft, and the curtain cloth is pulled out from the winding shaft to cover the window glass, thereby blocking the line of sight from outside the vehicle and blocking sunlight.

[0003]

The windshield and the rear window mounted on the vehicle are curved outward in a plan view. Therefore, when the roll curtain device is mounted on, for example, the rear window, the roll window is rolled. Even if the left and right ends of the curtain device are mounted close to the rear window glass, the center of the roll curtain device is separated from the rear window glass, and the gap between the rear window glass and the curtain cloth is increased.

As a result, sunlight enters the room through a gap between the rear window glass and the curtain cloth, so that privacy and anti-glare properties cannot be sufficiently ensured. Also,
When the gap between the rear window glass and the curtain cloth is increased, the interior space may be narrowed, and the occupant may feel more pressure.

An object of the present invention is to provide a technique capable of mounting a roll curtain device along a window glass curved outward in a plan view.

[0006]

In order to solve the above-mentioned problems, the inventors of the present invention have made the winding cylinder curved by attaching a flexible winding cylinder to a curved fixed shaft in a rotatable manner. We noticed that it can be rotated in a bent state, and we studied the development of a curved roll curtain from this viewpoint. Specific means will be described below prior to the “embodiment”.

FIG. 1 is a perspective view of a curved roll curtain device according to the present invention. The curved roll curtain device 1 includes a fixed shaft 2 bent in a curved shape, flanges 3 attached to the fixed shaft 2 at fixed intervals (indicated by a plurality of pieces, the same applies hereinafter), and the flange 3. , And a curtain cloth 5 wound around the outer periphery of the winding cylinder 4. 6 is a rod attached to the lower end of the curtain cloth 5, and 6a and 6a are sliders attached to both ends of the rod 6. The sliders 6a, 6a are members that move up and down along guide rails described later.

FIGS. 2A and 2B are cross-sectional views of FIG. 1, wherein FIG. 2A is a cross-sectional view taken along line 2a-2a of FIG. 1, and FIG. 2B is a cross-sectional view taken along line 2b-2b of FIG. (A) shows the fixed shaft 2 having a radius r
1 shows a state in which guide flanges 3 are fixed, and a winding cylinder 4 is rotatably mounted on these flanges 3.
When the curtain cloth 5 is lowered in the direction of the arrow while the fixed shaft 2 and the flanges 3 are fixed, only the take-up cylinder 4 rotates in the direction of the arrow.

FIG. 2B shows a state in which guide flanges 3 having a radius r2 are fixed to the fixed shaft 2, and a winding cylinder 4 is rotatably mounted on these flanges 3. As in (a), when the curtain cloth 5 is lowered in the direction of the arrow while the fixed shaft 2 and the flanges 3 are fixed, the winding cylinder 4 rotates in the direction of the arrow. By setting r1 = r2,
(A) a curtain cloth 5 at a cross-sectional position along the line 2a-2a,
The curtain cloth 5 at the cross-sectional position along the line 2b-2b shown in (b) can be moved up and down at the same speed.

According to the first aspect of the present invention, in order to solve the above-described problems from the above description, a curved fixed shaft attached along the inner surface of a curved window glass, and a rotatable attachment to the fixed shaft. A curved roll curtain composed of a flexible winding cylinder and a curtain cloth wound around the outer circumference of the winding cylinder was constructed.

The fixed shaft is formed in a curved shape, and a flexible take-up cylinder is rotatably mounted on the fixed shaft.
The winding cylinder can be formed in a curved shape along the fixed axis. For this reason, the curtain cloth wound around the outer periphery of the winding cylinder can be arranged along the curved window glass. As a result, the curtain cloth can block the line of sight from the outside of the vehicle and can sufficiently block the sun's rays, so that privacy and anti-glare properties can be sufficiently secured. Further, since the gap between the curved window glass and the curtain cloth can be made as small as possible, the feeling of pressure on the occupant can be reduced by feeling that the interior space is widened.

A second aspect of the present invention is characterized in that the curved glass has a curved shape in plan view. Since the curved glass is formed in a curved shape in a plan view, the curtain can be opened and closed by mounting the fixed shaft on the upper end of the curved glass and moving the curtain cloth up and down. Therefore, compared with the case where the curtain is opened and closed in the horizontal direction, it is possible to eliminate the slack of the curtain cloth.

[0013] A third aspect of the present invention is characterized in that a coating is applied to a portion of the curved window glass on which the fixed shaft is mounted. The fixed shaft can be hidden by the coating by applying the coating to the portion of the window glass on which the fixed shaft is mounted. Therefore, the fixed shaft can be hidden from the outside of the vehicle.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 3 is a perspective view of a wagon car using the curtain device (first embodiment) of the vehicle window glass according to the present invention. The wagon vehicle 30 includes front wheels 32, 32 (only one side is shown) and rear wheels 33, 33 respectively attached to the front and rear portions of the vehicle body 31, and a rear window glass as a curved window glass attached to the rear portion of the vehicle body 31. 34 and this rear window glass 3
4 and a curved roll curtain device 1 arranged inside. 35 is a front side window glass, and 36 and 37 are side window glass.

FIG. 4 is an exploded perspective view of a curved roll curtain device (first embodiment) according to the present invention. The same members as those shown in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be omitted. The curved roll curtain device 1 includes left and right guide rails 41 and 43 attached to a rear window glass 34, a curved fixed shaft 2 attached to extended portions 47 and 48 of the guide rails 41 and 43, and a fixed shaft 2. (See FIG. 1), a flexible winding cylinder 4 rotatably mounted on the flanges 3, and a curtain cloth wound around the outer circumference of the winding cylinder 4. 5 In addition, about the curved roll curtain device 1, FIG.
This will be described in more detail.

The rear window glass 34 is a window glass which is curved outwardly in a plan view and also curved outwardly in a side view, and has an inner surface portion along the edge 34a (particularly, an adhesive portion between the left and right guide rails 41 and 43). Is a curved glass in which a masking 44 is applied.

The masking 44 is formed by screen printing an inorganic pigment containing a glass flick and firing it at a high temperature, or a cured film of an organic substance containing a pigment or a dye, and is curved from the outside of the wagon 30 shown in FIG. The roll curtain device 1 (particularly, the left and right guide rails 41 and 43) is made invisible.

The left and right guide rails 41 and 43 are formed in a curved shape in a side view in accordance with the rear window glass 34, and bolts 45a are formed.
And nuts 45b are members mounted on a masking 44 provided on the inner surfaces of the left and right ends of the rear window glass 34. The left and right guide rails 41 and 43 include expansion portions 47 and 48 to which the fixed shaft 2 is rotatably attached at the upper ends thereof.

The curtain cloth 5 is a member for controlling color tone, light, heat and sound, such as a dimming / light shielding sheet, a sound absorbing film, and the like. By making the structure that the curtain cloth 5 can be removed, the material and pattern of the curtain cloth 5 can be changed according to the purpose of use, and when the curtain cloth 5 is damaged, it can be easily replaced. The curtain cloth 5 has a rod 6 at the lower end.
And sliders 6a, 6 attached to both ends of the rod 6.
a. The sliders 6a, 6a are arranged in left and right guide rails 41, 43, respectively.
It moves up and down along 43 grooves 41a and 43a.

Reference numeral 49 denotes a cover for covering the winding cylinder;
Are holes (only the left side is shown) formed in the left and right ends of the cover 49, and 51 and 51 are bosses (only the left side is shown) for receiving the holes 50 and 50 of the cover 49.

FIG. 5 is a sectional view of a curved roll curtain device (first embodiment) according to the present invention. The curved roll curtain device 1 has a curved fixed shaft 2 mounted inside a rear window glass 34, flanges 3 mounted on the fixed shaft 2 at regular intervals, and rotatably mounted on the flanges 3. Flexible winding cylinder 4 and curtain cloth 5 described above.
And a take-up spring 7 arranged in a gap between the take-up cylinder 4 and the fixed shaft 2, and a lock mechanism 20 for locking the take-up cylinder 4 against the take-up force of the take-up spring 7.

The fixed shaft 2 has left and right ends 2a and 2b formed in a straight line, and an inner portion 2c of the fixed shaft 2 is bent into a curved shape along the rear window glass 34. The left and right ends 2a and 2b are expanded in the left and right directions. In the state inserted into the mounting holes 47a, 48a of the parts 47, 48, they are fixed to the left and right expansion parts 47, 48. The flanges 3 are fixedly mounted at a fixed interval in the range from point A to point B of the fixed shaft 2.

The winding cylinder 4 is a flexible cylindrical body formed in a bellows shape with resin, and is a member bent in a curved shape along the flanges 3. The winding cylinder 4 has a left collar 8 and a right collar 9 attached to left and right ends, and the left collar 8 and the right collar 9 are rotatably attached to bearings 10. Since the outside (the rear window glass 34 side) extends and the inside (the indoor side) contracts, the relationship between the outer pitch P1 and the inner pitch P2 is P1> P2.

The take-up spring 7 is a torsion spring disposed between the collar 9 and the mounting flange 11, and fixes the left end 7a to the small-diameter portion 11a of the mounting flange 11 and the right end 7b to the small-diameter portion 9a of the collar 9. It is fixed. The mounting flange 11 is a member fixedly mounted on the fixed shaft 2.
When the curtain cloth 5 is lowered, the collar 9 rotates and twists together with the winding cylinder 4 when the curtain cloth 5 is lowered, and when the curtain cloth 5 is released, the collar 9 moves in the winding direction. The curtain cloth 5 is wound around the winding cylinder 4 by rotating.

The lock mechanism 20 includes a gear 21 provided outside the collar 9, and a lock pin 22 for locking the gear 21.
And a compression spring 23 for pressing the lock pin 22 against the gear 21. The lock pin 22 is a member movably attached to the hole 48b of the extension portion 48, a member provided with the flange 26 at the distal end, and the drawout knob 27 attached at the end. The compression spring 23 is disposed between the flange 26 and the bent portion 48c of the expansion portion 48.
2 is to be engaged with the gear 21.

The operation of the above-described curved roll curtain device 1 according to the present invention will be described with reference to FIGS. 2 (a), (b) and FIG. Pull-out knob 2 of lock mechanism 20 shown in FIG.
7 is pulled out to release the engagement between the gear 21 and the lock pin 22. Next, the curtain cloth 5 shown in FIGS.
In the direction of the arrow. With the fixed shaft 2 and the flanges 3 fixed, only the winding cylinder 4 has an arrow,
The curtain cloth 5 is pulled out from the winding cylinder 4 by rotating in the direction.

Since the radius of the winding cylinder 4 is the same in the entire range (ie, r1 = r2), 2a-2a shown in FIG.
Curtain cloth 5 at the line cross-sectional position, and 2b-2b shown in (b)
The curtain cloth 5 at the line cross-sectional position is lowered at the same speed. At this time, the collar 9 shown in FIG. 5 rotates integrally with the take-up cylinder 4 in the pull-out direction, thereby rotating the right end 7b side of the take-up spring 7 in the pull-out direction.

When the curtain cloth 5 is lowered to the desired position, the pull-out knob 27 of the lock mechanism 20 shown in FIG. 5 is released. The lock pin 22 is pressed against the gear 21 by the spring force of the compression spring 23. As a result, the take-up cylinder 4 is locked together with the collar 9, and the curtain cloth 5 stops at a desired position.

Next, when the curtain cloth 5 is wound up, the curtain cloth 5 is released, and the pullout knob 27 of the lock mechanism 20 shown in FIG. 5 is pulled out to release the engagement between the gear 21 and the lock pin 22. . By rotating the collar 9 in the winding direction by the spring force of the right end 7b of the winding spring 7, the winding cylinder 4
Is rotated in the winding direction to wind the curtain cloth 5 around the winding cylinder 4.

A second embodiment will be described. FIG. 6 is a perspective view showing a curved roll curtain device (second embodiment) according to the present invention, and the same members as those in the first embodiment are denoted by the same reference numerals and description thereof will be omitted. In the description, "before"
"Back" indicates the position shown. The curved roll curtain device 50 includes coating portions 51a before and after coating both sides of the curtain cloth 51 with a molten resin to increase the strength.
51b, and these coating portions 51a, 51b are inserted into the front and rear guide rails 54, 55.

The window glass 56 is a member bent at approximately 90 ° at the center, and has a horizontal portion attached to a roof of a wagon vehicle and a vertical portion attached to a side portion of the wagon vehicle. The front and rear guide rails 54 and 55 are members that are bent at approximately 90 degrees at the center according to the shape of the window glass 56. Instead of providing the coating portions 51a and 51b on both sides of the curtain cloth 51,
A plurality of pins are attached to both sides of the curtain cloth 51 at predetermined intervals, and these pins are connected to the front and rear guide rails 54,5.
5, the same effect can be obtained.

FIGS. 7A and 7B are explanatory views of the operation of the curved roll curtain device (second embodiment) according to the present invention.
7 shows a cross-sectional position along line 7-7 in FIG. Since the operation before and after the curved roll curtain device 50 is the same, only the rear portion will be described. (A) shows a state in which the curved roll curtain device 50 is opened with the slider 6a disposed at the upper end of the rear guide rail 55. (B) shows a state in which the curved roll curtain device 50 is closed by moving the slider 6a to the lower end of the rear guide rail 55 as shown by the arrow. By inserting the rear coating portion 51b of the curtain cloth 51 into the rear guide rail 55, the curtain cloth 51 can be closed along the window glass 56.

The third embodiment will be described. FIG. 8 is a side view showing a winding cylinder (third embodiment) according to the present invention, and the same members as those in the first embodiment are denoted by the same reference numerals and description thereof will be omitted. The winding cylinder 60 includes a flexible cylindrical body 61.
And a spring member 62 wound around the wall of the cylindrical body 61 in a coil shape. The spring member 62 is attached to the wall of the cylindrical body 61. According to the winding cylinder 60,
The same effect as the winding cylinder 4 of the first embodiment is obtained.

Next, a fourth embodiment will be described. FIG.
(A) and (b) are winding cylinders according to the present invention (fourth embodiment).
2A is a side view, and FIG. 2B is a perspective view of a cylindrical block. The winding cylinder 70 shown in FIG.
, A plurality of cylindrical blocks 71 are arranged in a curved shape along the fixed shaft 2, and the projections 72a of the adjacent cylindrical blocks 71.
And the grooves 72b are engaged with each other and engaged with each other.

Since the rotational force is transmitted from the projections 72a and the grooves 72b to the adjacent cylindrical blocks 71, the cylindrical blocks 71 can be rotated. Similarly to the winding cylinder 4 of the first embodiment, the curtain cloth can be wound around the winding cylinder 70.

(B) shows a case in which protrusions 62a, 62a and grooves 62b, 62b are radially provided on one end of a cylindrical block 61, and the protrusions 62a, 62a and grooves 62b, 62b are radially displaced from the other end by 90 °. 2 shows the state provided.

In the first embodiment, the left and right guide rails 41, 4
Although the description has been given of the state in which 3 is attached to the rear window glass with the bolts 45a and 45b, the left and right guide rails 41 and 43 may be attached with an adhesive. At this time, the masking 44 is a screen coating of an inorganic pigment containing a glass flick and baked at a high temperature, or a cured film of an organic material containing a pigment or a dye, and the surface is rougher than the surface of the rear window glass 34. It is a film that becomes Therefore, the left and right guide rails 41 and 43 can be firmly bonded by increasing the adhesiveness of the adhesive. In addition, it is possible to prevent deterioration of the adhesive for bonding the left and right guide rails 41 and 43 to the rear window glass 34.

In the first embodiment, the curved curtain roll device for winding the curtain cloth 5 around the winding cylinder 4 using the winding spring 23 has been described.
For example, a handle (not shown) attached to the winding cylinder 4
May be manually operated to wind the curtain cloth 5 around the winding cylinder, or a drive motor may be attached to the winding cylinder 4 to open and close the curtain cloth 5 electrically.

In the first embodiment, the left and right guide rails 41,
Although the state using 43 has been described, the left and right guide rails 4
The same effect can be obtained without using 1,43. In this case, only the extension portions 47 and 48 provided at the upper end portions of the left and right guide rails 41 and 43 are independently attached to the fixed shaft 2.
In order to rotatably mount and allow the curtain to be opened and closed, a holding unit (not shown) for holding a rod 6 (described later) of the curtain cloth 5 at a desired position is prepared.

[0040]

According to the present invention, the following effects are exhibited by the above configuration. According to the first aspect, the fixed shaft is formed in a curved shape, and the flexible winding tube is rotatably attached to the fixed shaft, whereby the winding tube is formed in a curved shape along the fixed shaft. it can. For this reason, the curtain cloth wound around the outer periphery of the winding cylinder can be arranged along the curved window glass. As a result, the curtain cloth can block the line of sight from the outside of the vehicle and can sufficiently block the sun's rays, so that privacy and anti-glare properties can be sufficiently secured. Further, since the gap between the curved window glass and the curtain cloth can be made as small as possible, the feeling of pressure on the occupant can be reduced by feeling that the interior space is widened.

According to the second aspect, since the curved glass has a curved shape in a plan view, the curtain can be opened and closed by mounting the fixed shaft on the upper end of the curved glass and moving the curtain cloth up and down. Therefore,
Compared to the case where the curtain is opened and closed in the horizontal direction, the sag of the curtain cloth can be eliminated.

According to a third aspect of the present invention, the fixed shaft can be hidden by the film by applying a film to a portion of the window glass on which the fixed shaft is mounted. Therefore, the fixed shaft can be hidden from the outside of the vehicle.

[Brief description of the drawings]

FIG. 1 is a perspective view of a curved roll curtain device according to the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is a perspective view of a wagon vehicle using the curtain device (first embodiment) of the vehicle window glass according to the present invention.

FIG. 4 is an exploded perspective view of a curved roll curtain device (first embodiment) according to the present invention.

FIG. 5 is a sectional view of a curved roll curtain device (first embodiment) according to the present invention.

FIG. 6 is a perspective view showing a curved roll curtain device (second embodiment) according to the present invention.

FIG. 7 is an operation explanatory view of a curved roll curtain device (second embodiment) according to the present invention.

FIG. 8 is a side view showing a winding cylinder (third embodiment) according to the present invention.

FIG. 9 is a side view showing a take-up cylinder (fourth embodiment) according to the present invention.

[Explanation of symbols]

1, 50: curved roll curtain device, 2: fixed shaft, 4,
60, 70: winding cylinder, 5, 51: curtain cloth, 34:
Rear window glass (curved window glass), 56 ... window glass (curved window glass).

Claims (3)

[Claims] 1. A curved fixed shaft mounted along an inner surface of a curved window glass, a flexible winding cylinder rotatably mounted on the fixed shaft, and wound around an outer periphery of the winding cylinder. Curved roll curtain device consisting of curtain cloth. 2. The curved roll curtain device according to claim 1, wherein the curved glass has a curved shape in plan view. 3. The curved roll curtain device according to claim 1, wherein the curved window glass is provided with a coating on a portion where the fixed shaft is mounted.