CN86203335U

CN86203335U - Cord operated roll-up device for curtain

Info

Publication number: CN86203335U
Application number: CN 86203335
Authority: CN
Inventors: 蒋大勇
Original assignee: YUZHOU AUTOMOBILE FITTINGS FACTORY CHONGQING
Current assignee: YUZHOU AUTOMOBILE FITTINGS FACTORY CHONGQING
Priority date: 1986-05-16
Filing date: 1986-05-16
Publication date: 1987-05-27

Abstract

The utility model discloses a wheel system composed of 4-5 pulleys and a rolling shaft, which belongs to a daily apparatus. The up and down motion of a pull rope is changed into the positive and negative rotation of the rolling shaft through the wheel system, which can make curtain cloth roll up and put out in order to realize the opening and closing of the curtain. The cord operated roll-up device for curtain can make the curtain cloth keep clean for a long time. The external form of the apparatus is formed into a decorative beauty. The cord operated roll-up device for curtain is suitable for various standards windows and the arrangements of entrance halls of families, hotels, hospitals, offices, schools, etc.

Description

Cord operated roll-up device for curtain

This is suitable for the daily device of a kind of life of novel genus.

Generally use various simple and easy dragline type curtain in places such as family, hotel, offices at present.Before the utility model is made, the existing utility model CN85200339U bulletin of China.It has had big progress on simple and easy dragline type curtain among the people basis.But it still with traditional longitudinal folding mode open and close cord, exposes cord all the time, not only easily loses colour but also can not keep neat and artistic; Stroke owing to extension spring has limited the open and close amplitude of cord simultaneously, thereby has limited its scope of application.

It is simple that task of the present utility model is to design a kind of novel structure, aesthetic in appearance generous, installation, easy to use, the stay cord horizontal scrolling curtain that the scope of application is big.

Adopt following scheme to solve above-mentioned task:

, fixedly connected with curtain rolling shaft as drive with a pulley by the major axis head; As press rope wheel, use one or two pulleys with two truckles again, be installed on the wheel pack support as centre wheel; The axle bed at curtain rolling shaft two ends and wheel pack support are contained on the base plate or directly are contained on the beam of window frame upper end, make above-mentioned four (or five) pulleys constitute a train.Flat elastic is sewed up in the cord upper end, utilizes the elasticity of flat elastic to link to each other with curtain rolling shaft with butt hook.The length of curtain rolling shaft is decided with the window of different size.In order to prevent that cord from moving axially and loose winding radially, a directive wheel respectively is set at the curtain rolling shaft two ends, and on the beam of on its base plate or window frame upper end, is respectively adorning one and pressing curtain sheet, uniform counterweight bar in addition in the cord lower end.In order to make whole device constitute a kind of decorative beauty, protect cord and parts cleaning simultaneously, with an outer cover be fixed on the base plate or window frame upper end beam on, and at the uniform upholstery border in cord lower end.Curtain rope is one and is surrounded on drive and squeezes the closed loop that is the figure of eight between centre wheel and press rope wheel, the upper and lower mating reaction that moves through train of stay cord changes the positive and negative rotation of curtain rolling shaft into, thereby the switching that realizes curtain is rolled or decontroled to cord.In the stay cord closed loop, also be provided with a joint pearl (preferably colored spheroid), its purposes is, it is spacing to block the open and close that it realizes curtain in stay cord upper and lower when motion by curtain outer cover lower edge, makes stay cord constitute not only handled easily but also play decorative beauty of closed loop simultaneously.The joint pearl is adopted the hemispheres (preferably colored plastic part) of two band shoulder holes, pricks head after two of stay cord being passed the aperture of two hemisphere respectively, the two halves spheroid is bonded into a spherosome (or adopt be threaded) again.

Curtain of the present utility model compared with the prior art, novel structure is simple, low cost of manufacture, installation, operation, dismounting cord are all very convenient, and it is by outer cover, upholstery border, joint pearl and ornament of cord assembly.Be applicable to the window of place plurality of specifications such as family, hotel, hospital, office, school and partly courtyard configuration.

Below in conjunction with accompanying drawing a kind of optimum implementation of the present utility model is described further:

Fig. 1 is a general assembly drawing of the present utility model;

Fig. 2 is the cutaway view that I-I is got from Fig. 1;

Fig. 3 is the cutaway view that II-II is got from Fig. 1;

Fig. 4 is the cutaway view that III-III is got from Fig. 2;

Fig. 5 is the perspective view of wheel pack support (7);

Fig. 6 is the perspective view of butt hook (11);

Fig. 7 is an outside drawing of the present utility model;

The part name of each number designation representative is among Fig. 1-Fig. 7:

1-wood screw 2-nut 3-packing ring

4-screw axis 5-press rope wheel 6-centre wheel

7-wheel pack support 8-rivet shaft 9-joint pearl

The flat elastic of 10-minor axis head 11-butt hook 12-

13-roundheaded wood screw 14-counterweight bar 15-axle bed

16-presses curtain sheet 17-cord 18-upholstery border

19-base plate 20-curtain rolling shaft 21-outer cover

22-major axis head 23-drive 24-directive wheel

25-packing ring 26-nut 27-stay cord

28-press rope wheel 29-axle bed 30-nut

31-screw axis 32-rivet shaft

Curtain rolling shaft among Fig. 1 (20), directive wheel (24) adopt interference fit to be connected with major axis head (22) and minor axis head (10), and drive (23) is fastening by the extruding force and the major axis head (22) of nut (26).Among Fig. 1 major axis head (22), minor axis head (10) respectively with the cooperating of axle bed (29), (15), rivet shaft among Fig. 4 (8) (32) respectively with the cooperating of two centre wheel (6), screw axis (4) (31) all adopts little matched in clearance with cooperating of press rope wheel (5) (28) respectively, makes it flexible rotation.If they adopt, and rolling bearing is even more ideal.Press rope wheel (5) (28) is to clamp stay cord (27) with the effect of centre wheel (6), makes it tightly to go up around drive (23) all the time to produce frictional force realization transmission (Fig. 2, Fig. 4).Curtain rolling shaft (20) is (Fig. 3) that realizes with butt hook (11) by the flat elastic (12) that the cord upper end is sewed up, dismounting cord so easily with being connected of cord (17).In Fig. 4, Fig. 5, two cylindrical voids on the wheel pack support (7) are used for mounting screw axle (4) (31), can mobile screw axis (4) (31) regulate clamping force size and the replacing stay cord of press rope wheel (5) (28) to stay cord (27) so that unclamp nut (2) (30).Counterweight bar (14) is distributed in the cord lower end with the form of pipe nipple, and (Fig. 1) still can softly wave when making cord by wind.

The mechanism action process of draw-back curtain is: when pulling down, stay cord drives drive (23) under the effect of frictional force just change, thereby curtain rolling shaft (20) is just changeed synchronously with Fig. 2 the right stay cord (27), rolls cord (17) gradually and realize curtain opening; When pulling down, stay cord drives drive (23) counter-rotating with left side stay cord (27), thereby makes curtain rolling shaft (20) counter-rotating synchronously, emits cord (17) gradually, realizes closing of curtain.

Claims

1, a kind of stay cord curtain is characterized in that having a pulley system that is made of a drive (23), or two centre wheels (6), two press rope wheels (5) (28), with a curtain rolling shaft (20) of fixedlying connected with drive (23); Its feature is that also respectively there is a directive wheel (24) at curtain rolling shaft (20) two ends, the uniform counterweight bar in cord (17) lower end (14).

2, according to the described curtain of claim 1, it is characterized in that stay cord (27) is one and is surrounded on drive (23) and squeezes the closed loop that is the figure of eight between centre wheel (6) and press rope wheel (5) (28), a positioning joint pearl (9) is arranged in the closed loop.

3,, it is characterized in that realizing cord (17) and being connected of curtain rolling shaft (20) with butt hook (11) by flat elastic (12) according to claim 1 or 2 described curtain.

4,, it is characterized in that respectively having one to press curtain sheet (16) at curtain rolling shaft (20) two ends according to claim 1 or 2 described curtain.

5,, it is characterized in that respectively having one to press curtain sheet (16) at curtain rolling shaft (20) two ends according to the described curtain of claim 3.

6, according to claim 1,2 or 5 described curtain, it is characterized in that being equipped with curtain outer cover (21).

7,, it is characterized in that curtain outer cover (21) being housed on base plate (19) to colluding (11) the window shade arrangement that cord (17) links to each other with curtain rolling shaft (20) with connecting by flat elastic (12) according to the described curtain of claim 3.

8,, it is characterized in that curtain outer cover (21) being housed on base plate (19) to having the window shade arrangement of pressure curtain sheet (16) according to the described curtain of claim 4.