CN112727335A - Venetian blind and lower rail of venetian blind - Google Patents
Venetian blind and lower rail of venetian blind Download PDFInfo
- Publication number
- CN112727335A CN112727335A CN201910973578.8A CN201910973578A CN112727335A CN 112727335 A CN112727335 A CN 112727335A CN 201910973578 A CN201910973578 A CN 201910973578A CN 112727335 A CN112727335 A CN 112727335A
- Authority
- CN
- China
- Prior art keywords
- frame body
- lower rail
- blind
- embedded
- ladder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/38—Other details
- E06B9/388—Details of bottom or upper slats or their attachment
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
Abstract
The invention provides a shutter and a lower rail of the shutter, the lower rail comprises: an elongated frame having a top wall and two sidewalls; an accommodating space formed between the top wall and the two side walls; at least two rope holes which are arranged on the top wall of the frame body and communicated with the vacant space; a long counterweight piece which is arranged in the accommodating space; a long sheet material embedded in the bottom of the frame. The pull rope and the tail end of the ladder rope/ladder belt of the blind penetrate into the accommodating space of the frame body and are connected with the fixing piece.
Description
Technical Field
The present invention relates to window blinds, and more particularly, to a lower rail of a window blind and a window blind having the same.
Background
The window covering has various forms, and the window covering is a common window covering, and referring to fig. 1, the window covering 10 has an upper rail 12, a lower rail 14, a plurality of window covering vanes 15 installed between the upper and lower rails, a plurality of pull ropes 16, a plurality of ladder ropes 17 connected between the upper and lower rails 12, 14 and the window covering vanes 15; a plurality of fasteners 18 mounted on the bottom end of the lower rail 14 for fixing the bottom end of the ladder rope 17 to the lower rail 14. The upper rail 12 is also provided with a rolling adjustment mechanism 19, which can control the pull ropes 16 and the ladder ropes 17 to control the lifting and lowering of the curtain blades 15 and adjust the angle of the curtain blades, so as to achieve the purpose of shading and dimming.
In the existing venetian blind structure, the bottom end of the ladder cord 17 is fixed to the lower rail 14 by the fastener 18, and the fastener 18 fastens the outer circumferential surface of the lower rail 14 and is exposed out of the lower rail, which is not good for appearance. Moreover, such a connection structure has been used for a long time and needs to be improved.
In addition, the lower rail 14 of the conventional venetian blind is a single member, such as an article made of aluminum, which has a monotonous outer shape, is not matched with the slats 15 of the venetian blind in terms of material and color, and cannot form a sense of unity with the slats 15 of the venetian blind.
Disclosure of Invention
The invention aims to solve the technical problems and provides a blind and a lower rail of the blind, and provides an innovative structure for the lower rail of the blind.
Another object of the present invention is to provide a lower rail of a window blind, which has a more elegant appearance.
Another object of the present invention is to provide a lower rail of a window blind, which has a sense of unity with the blind slats of the window blind.
A lower rail of a window blind, comprising:
an elongated frame having a single cross-sectional shape and having a top wall and two side walls; an accommodating space formed between the top wall and the two side walls; at least two rope holes which are arranged on the top wall of the frame body and communicated with the vacant space;
a long counterweight piece which is arranged in the accommodating space;
and the long sheet is arranged on the bottom surface of the frame body, and two sides of the sheet are embedded with the two side walls.
At least two side holes are respectively arranged on two sides of the frame body and communicated with the accommodating space.
The bottom edges of the two side walls are respectively provided with an embedded groove; two sides of the sheet are respectively embedded in the two embedding grooves.
At least one long embedded rib arranged in the accommodating space of the frame body along the longitudinal direction of the frame body; the circumferential surface of the counterweight is provided with at least one embedded part along the longitudinal direction, and the counterweight is embedded and connected with the embedded rib by the embedded part.
At least two long embedded ribs are longitudinally arranged on the frame body, each embedded rib is provided with a free end, and the free ends of the two embedded ribs keep intervals and are opposite; two sides of the weight piece are respectively provided with an embedding part, and the two embedding parts are embedded with the free ends of the two embedding ribs.
The lower rail of the blind further comprises: a second sheet material, which is placed on the top wall of the frame body; two through holes are arranged on the second sheet material and respectively correspond to the two rope holes.
Two strip bodies for keeping gaps are arranged on the inner wall surface of each side wall of the frame body along the longitudinal direction of the frame body; each caulking groove is formed between the two strips.
The material of the counterweight part is softer than metal.
A window blind, comprising:
a plurality of curtain blades arranged up and down;
a plurality of pull ropes passing through the curtain vanes;
a plurality of ladder ropes respectively arranged at two sides of the curtain blades; and a lower rail of a blind curtain,
the lower rail includes: an elongated frame having a single cross-sectional shape and having a top wall and two side walls; an accommodating space formed between the top wall and the two side walls; at least two rope holes which are arranged on the top wall of the frame body and communicated with the vacant space;
a long counterweight piece which is arranged in the accommodating space;
the long sheet is arranged on the bottom surface of the frame body, and two sides of the sheet are embedded with the two side walls;
the lower rail is positioned below the curtain vanes;
the bottom end of each pull rope penetrates into the accommodating space of the frame body from the rope hole on the top wall of the frame body and is connected with the counterweight;
the bottom end of each ladder rope penetrates through a gap between one side of the sheet and one side wall of the frame body and enters the accommodating space to be fixedly connected with the counterweight.
A window blind, comprising:
a plurality of curtain blades arranged up and down;
a plurality of pull ropes passing through the curtain vanes;
a plurality of ladder ropes or ladder belts which are respectively arranged at two sides of the curtain blades; and a lower rail of a blind curtain,
the lower rail includes: an elongated frame having a single cross-sectional shape and having a top wall and two side walls; an accommodating space formed between the top wall and the two side walls; at least two rope holes which are arranged on the top wall of the frame body and communicated with the vacant space;
a long counterweight piece which is arranged in the accommodating space;
the long sheet is arranged on the bottom surface of the frame body, and two sides of the sheet are embedded with the two side walls; two sides of the frame body are respectively provided with at least two side holes which are communicated with the accommodating space;
the lower rail is positioned below the curtain vanes;
the bottom end of each pull rope penetrates into the accommodating space of the frame body from a rope hole in the top wall of the frame body and is connected with the counterweight;
the bottom end of each ladder rope or ladder belt penetrates into the accommodating space of the frame body from one side hole of one side wall of the frame body and is connected with the counterweight.
The invention has the beneficial effects that:
the lower rail provides a novel structure and the rope combination of the blind, the pull rope and the tail end of the ladder rope/ladder belt of the blind penetrate into the containing space of the frame body and are connected with the fixing piece. The connecting structure of the ropes (the pull ropes, the ladder ropes and the ladder belts) and the lower rail of the blind is hidden in the lower rail, so that the lower rail and the blind are more attractive integrally.
The lower rail can be provided with a plurality of side holes on two side walls of the frame body respectively, and the tail ends of the ladder rope and the ladder belt of the blind can penetrate into the frame body through the side holes.
Preferably, the sheet material of the lower rail is the same as the curtain vanes of the blind, so that the sheet material of the lower rail is consistent with the curtain vanes, and the blind has a sense of unity.
Drawings
Fig. 1 is a perspective view of a conventional window blind.
Fig. 2 is a perspective view of the lower rail according to the first preferred embodiment of the present invention.
Fig. 3 is an exploded perspective view of fig. 2.
Fig. 4 is a bottom exploded perspective view of fig. 2.
Figure 5 is a transverse cross-sectional view of the lower track shown in figure 2 along section line 5-5.
Fig. 6 is a cross-sectional view taken along line 6-6 of fig. 5.
Fig. 7 is a window shade formed with the lower rail of fig. 2 installed.
Fig. 8 is a partially enlarged view of fig. 7.
Fig. 9 is a cross-sectional view taken along line 9-9 of fig. 7.
Fig. 10 is a perspective view of a lower rail in accordance with a second preferred embodiment of the present invention.
Fig. 11 is a window shade formed with the lower rail of fig. 10 installed.
Fig. 12 is a partially enlarged view of fig. 11.
Fig. 13 is a perspective view of a lower rail in accordance with a third preferred embodiment of the present invention.
FIG. 14 is a window shade formed with the lower rail of FIG. 13 installed.
Fig. 15 is a cross-sectional view taken along line 15-15 of fig. 14.
Fig. 16 is a transverse cross-sectional view of a lower rail in accordance with a fourth preferred embodiment of the present invention.
20. 20 ', 20' bottom rail, 30 frame, 31 top wall, 32 side wall, 33 rope hole, 34 'side hole 35 containing space, 36 caulking groove, 361 strip body, 38 caulking rib, 381 free end, 40 weight piece, 42 caulking part, 50 sheet material, 52 second sheet material, 53 perforation, 55 end cover, 56 clamping edge, 60' blind curtain, 62 top rail, 64 curtain blade, 65 pull rope, 651 staple needle, 66 ladder belt, 661 staple needle, 67 span rope, 68 ladder rope, 681 rope section, 682 staple needle, 69 furling adjusting mechanism.
Detailed Description
Referring to fig. 2 to 4, a lower rail 20 of a window blind according to a first preferred embodiment of the present invention, especially for use in a window blind, the lower rail 20 mainly includes: an elongated frame 30, an elongated weight 40, and an elongated sheet 50.
The frame 30 is an elongated body having a single sectional shape, for example, made of aluminum extrusion, and has a top wall 31 and two side walls 32; an accommodating space 35 is formed between the top wall 31 and the two side walls 32. At least two rope holes 33 are arranged on the top wall 31 of the frame body 30 and communicated with the vacant space 35, the two rope holes 33 are arranged along the longitudinal direction of the frame body 30, the number and the positions of the rope holes 33 are determined according to the number and the positions of the pull ropes of the blind, when the size of the blind is larger and a larger number of pull ropes are arranged, the same number of rope holes 33 are arranged on the frame body 30. Each side wall 32 of the frame 30 is provided with at least two side holes 34 communicating with the accommodating space 35, as shown in fig. 2 to 4, the number and positions of the side holes 34 of each side wall 32 correspond to the number and positions of the rope holes 33. The side hole 34 of this embodiment is an elongated hole suitable for use in a window blind for ladder tapes.
The bottom edges of the two side walls 32 are respectively provided with a caulking groove 36, wherein, referring to fig. 5, the inner wall surface of each side wall 32 is provided with two strips 361 along the longitudinal direction of the frame 30, and the two strips 361 are arranged up and down and keep a gap; each of the slots 36 is formed between the two bodies 361, and the slot 36 has an opening facing the inside of the frame 30. Two embedded ribs 38 are disposed in the accommodating space 35 along the longitudinal direction of the frame body, and the two embedded ribs 38 are disposed in the frame body in parallel in the left and right direction with respect to the cross section of the frame body 30 in fig. 5. The free ends 381 of the two ribs 38 are facing and spaced apart.
The weight member 40 is made of a softer material than iron, such as wood or plastic, in this embodiment, a wood weight member is selected, two lateral sides of the weight member 40 are respectively provided with an engaging portion 42 along the longitudinal direction thereof, and each engaging portion 42 is a groove in this embodiment. The weight 40 is moved into the frame from one end of the frame 30 and is installed in the receiving space 35 of the frame 30, as shown in fig. 5, and the engagement portions 42 at two sides of the weight 40 are engaged with the free ends 381 of the two engagement ribs 38. In the embodiment, the weight 40 is mounted in the accommodating space 35 in the frame body in a scarf joint manner, and the weight 40 can also be directly mounted in the accommodating space 35.
In addition, in the embodiment, the weight 40 is engaged with the frame 30 in a scarf joint manner, and the weight is not easy to slide, as shown in fig. 5, one or two micro-protrusions 37 are longitudinally arranged on the inner wall surface of the top wall 31, so that the weight 40 is tightly pressed between the micro-protrusions 37 and the embedded ribs 38, and is not easy to slide, and the weight 40 needs to be pushed to slide. The way to prevent the weight member from sliding is not limited to that shown in the embodiment, for example, a screw is screwed to the weight member from the bottom surface of the weight member, and the end of the screw penetrates through the top surface of the weight member and is tightly pressed to the top wall of the frame, so as to position the weight member.
The sheet 50 of the present invention is a curtain blade using a blind, and both sides thereof are fitted in the fitting grooves 36 formed on both sides of the frame body, thereby closing the bottom surface of the frame body 30.
In addition, the lower rail 20 further includes: two end caps 55 are respectively disposed at two ends of the frame 30, as shown in fig. 2 and 6. Referring to fig. 3 and 5, the locking edges 56 on both sides of each end cap 55 contact the inner wall surfaces of both side walls of the frame 30.
Referring to fig. 7 to 9, the bottom rail 20 of the present invention is used as a bottom rail of a window blind 60, and a window blind 60 composed of the bottom rail 20 is shown, and the bottom rail 20 is matched with a window blind with ladder tapes, wherein, besides the bottom rail 20, the window blind 60 further has: an upper rail 62, a plurality of curtain slats 64 installed between the upper and lower rails and arranged up and down, a plurality of pull cords 65, and a plurality of ladder tapes 66, please refer to fig. 8 and 9, each pull cord 65 is inserted through the curtain slats 64; the ladder belts 66 are respectively positioned at two sides of the curtain vanes 64, and every two ladder belts 66 positioned at different sides form a group of ladder belts, and a plurality of cross ropes 67 are arranged between the two ladder belts at equal intervals from top to bottom; the curtain vanes 64 are placed on the cross ropes 67, respectively. A winding adjusting mechanism 69 installed on the upper rail 62, when the winding adjusting mechanism 69 is operated by a user, the pulling rope 65 can be wound or released, so as to raise and lower the lower rail 20 and the curtain vanes 64, and the ladder tapes 66 at two sides of the curtain vanes 64 can be driven to move up and down, so as to change the shielding angles of the crossing rope 67 and the curtain vanes 64. The structure and operation of the venetian blind 60 are not the main subject of the present invention, and are not described in detail, and the rolling adjustment mechanism 69 of the venetian blind is not limited by the present invention, and various types of rolling adjustment mechanisms are disclosed in the prior art. The invention relates to a blind curtain which is characterized in that a ladder belt/ladder rope and a pull rope of the blind curtain are combined with a lower rail.
Taking the blind 60 with two pull cords 65 and two sets of ladder tapes 66 as an example, referring to fig. 8 and 9, the lower rail 20 is located below the blind slats 64; the bottom ends of the two pulling ropes 65 are respectively inserted into the accommodating space 35 of the frame body from the rope holes 33 of the frame body 30 and fixed to the weight member 40. In this embodiment, the staple 651 fixes the end of the pull cord 65 to the weight. The fixing method of the pulling rope 65 is not limited to this embodiment, and in practice, a hole may be drilled in the weight 40, and the pulling rope 65 may be inserted into the hole and fixed. The bottom ends of the two ladder straps 66 of each set of ladder straps extend into the frame from the side holes 34 in the two side walls 32 of the frame 30 and are secured to the weight members, such as staples 661 or other means. The weight member is wooden, and the pull rope and the ladder tape can be quickly nailed on the weight member by the needle, thereby forming the blind 60.
The sheet material 50 of the lower rail 20 of the invention and the curtain vanes 64 of the blind 60 are the same vanes, and the color and the material are the same, therefore, the sight can see that the sheet material (vanes) 50 of the lower rail 20 is consistent with the vanes 64 of the curtain from bottom to top, and the integral sense is formed.
Fig. 10 shows a lower rail 20' according to a second preferred embodiment of the present invention, which also comprises: an elongated frame 30, an elongated weight 40, an elongated sheet 50 and two end caps 55, the structure of the components of the present preferred embodiment is almost the same as that of the first preferred embodiment, and the same structures are denoted by the same reference numerals and will not be described again.
The difference between this embodiment and the first preferred embodiment is the hole shape of the side hole, and the side hole 34' of the side wall 32 of the frame 30 is a through hole for the rope to pass through.
Referring to fig. 11 and 12, the lower rail 20 ' of the present invention is used in a blind 60 ' having ladder cords (not ladder tapes), the blind 60 ' having: an upper rail 62, a plurality of curtain vanes 64, a plurality of pull ropes 65, a plurality of ladder cords 68, a winding adjustment mechanism 69 and the lower rail 20', wherein the ladder cords 68 are thinner cords than the ladder tapes. The connection of the rope 65 and the ladder rope 68 of the window covering 60 'to the lower rail 20' is the same as the first preferred embodiment, that is, the bottom end of each rope 65 is inserted into the frame body from the rope hole 33 of the frame body 30 and fixedly connected with the weight member 40; the bottom end of each ladder cord 68 is threaded into the frame body 30 from a side opening 34' in one side wall 32 of the frame body and is secured to the counterweight 40.
Fig. 13 shows a lower rail 20 ″ of a third preferred embodiment of the present invention, please refer to fig. 15, in which the lower rail 20' also includes: an elongated frame 30, an elongated weight 40, an elongated sheet 50 and two end caps 55, the structure of the components of the present preferred embodiment is the same as that of the first preferred embodiment, and the same structures are denoted by the same reference numerals and will not be described again.
The difference between this embodiment and the first preferred embodiment is: the side walls 32 of the frame 30 are not provided with side holes.
Referring to fig. 14 and 15, the lower rail 20' of the present invention is used in a window blind 60 "having a ladder cord, the window blind 60" having: an upper rail 62, a plurality of curtain vanes 64, a plurality of pull cords 65, a plurality of ladder cords 68, a winding adjustment mechanism 69, and the lower rail 20 ". The bottom end of each pulling rope 65 is inserted into the frame body from the rope hole 33 of the frame body 30 and is fixedly connected with the weight member 40. The bottom end of each ladder cord 68 passes through the gap between one side of the sheet material 50 and one side wall 32 of the frame body, and further extends into the accommodating space 35 of the frame body, and is fixedly connected with the weight member 40. As shown in fig. 15, the bottom end of each ladder cord 68 is plugged into the slot 36 of one side wall 32 of the frame 30 and enters the frame, specifically, the cord segment 681 of the ladder cord 68 is plugged into the slot 36 of the frame and is plugged into the gap between the edge of the sheet 50 and the two strips 361, so that the bottom end of the ladder cord 68 can penetrate into the frame 30 through the gap between one side of the sheet 50 and one side wall 32, and then the weight 40 is fixedly connected by the staple 682 or other fixing means. Thus, the lower rail 60 'and other components are assembled into the window blind 60'.
Fig. 16 is a cross-sectional view of a lower rail 20 according to a fourth preferred embodiment of the present invention, in which the lower rail of the first preferred embodiment is used to illustrate the present embodiment, and the present embodiment further includes: a second sheet 52, having the same shape and color as the sheet 50 and the same shape and color as the curtain vanes of the window blind, the second sheet 52 being placed on the top wall 31 of the frame 30; at least two through holes 53 are formed in the second sheet 52 and correspond to the rope holes 33, respectively, for inserting the rope into the frame.
Therefore, the sheets (vanes) 50 and 52 on the top and bottom surfaces of the lower rail 20 are matched with the curtain vanes of the window blind, so that the window blind has more integrity. The structure of the preferred embodiment can be applied to any of the above-described preferred embodiments.
The invention provides an innovative structure for the lower rail of the blind, changes the combination mode of the ladder rope, the ladder belt and the pull rope of the blind and the lower rail, and the combination parts of the ladder rope, the ladder belt and the pull rope and the lower rail are all hidden in the lower rail, therefore, the lower rail and the blind are more beautiful without using the fastener 18 shown in figure 1, in addition, the sheets 50 and 52 used by the lower rail are the same as the curtain blades of the blind, have the same color, material and surface effect, and ensure that the whole blind has integrity.
The embodiments disclosed above are merely illustrative of the technical means of the present invention and are not restrictive, and all equivalent modifications of the present invention should be regarded as the protection scope of the present invention. The lower rail and the blind curtain provided by the invention are the original technologies in the technical field, have practical efficacy and are applied by law.
Claims (10)
1. A lower rail of a blind curtain is characterized in that: comprises the following steps:
an elongated frame having a single cross-sectional shape and having a top wall and two side walls; an accommodating space formed between the top wall and the two side walls; at least two rope holes which are arranged on the top wall of the frame body and communicated with the vacant space;
a long counterweight piece which is arranged in the accommodating space;
and the long sheet is arranged on the bottom surface of the frame body, and two sides of the sheet are embedded with the two side walls.
2. The lower rail of a window blind as claimed in claim 1, wherein: at least two side holes are respectively arranged on two sides of the frame body and communicated with the accommodating space.
3. The lower rail of a blind as claimed in claim 1 or 2, wherein: the bottom edges of the two side walls are respectively provided with an embedded groove; two sides of the sheet are respectively embedded in the two embedding grooves.
4. The lower rail of a blind as claimed in claim 1 or 2, wherein: at least one long embedded rib arranged in the accommodating space of the frame body along the longitudinal direction of the frame body; the circumferential surface of the counterweight is provided with at least one embedded part along the longitudinal direction, and the counterweight is embedded and connected with the embedded rib by the embedded part.
5. The lower rail of a window blind as claimed in claim 4, wherein: at least two long embedded ribs are longitudinally arranged on the frame body, each embedded rib is provided with a free end, and the free ends of the two embedded ribs keep intervals and are opposite; two sides of the weight piece are respectively provided with an embedding part, and the two embedding parts are embedded with the free ends of the two embedding ribs.
6. The lower rail of a blind as claimed in claim 1 or 2, wherein: further comprising: a second sheet material, which is placed on the top wall of the frame body; two through holes are arranged on the second sheet material and respectively correspond to the two rope holes.
7. The lower rail of a blind as claimed in claim 1 or 2, wherein: two strip bodies for keeping gaps are arranged on the inner wall surface of each side wall of the frame body along the longitudinal direction of the frame body; each caulking groove is formed between the two strips.
8. The lower rail of a blind as claimed in claim 1 or 2, wherein: the material of the counterweight part is softer than metal.
9. A window blind, characterized in that: comprises the following steps:
a plurality of curtain blades arranged up and down;
a plurality of pull ropes passing through the curtain vanes;
a plurality of ladder ropes respectively arranged at two sides of the curtain blades; and
the lower rail of a blind as claimed in claim 1, which is located below the blind vanes;
the bottom end of each pull rope penetrates into the accommodating space of the frame body from the rope hole on the top wall of the frame body and is connected with the counterweight;
the bottom end of each ladder rope penetrates through a gap between one side of the sheet and one side wall of the frame body and enters the accommodating space to be fixedly connected with the counterweight.
10. A window blind, characterized in that: comprises the following steps:
a plurality of curtain blades arranged up and down;
a plurality of pull ropes passing through the curtain vanes;
a plurality of ladder ropes or ladder belts which are respectively arranged at two sides of the curtain blades; and
a lower rail according to claim 2, which is located below the curtain vanes;
the bottom end of each pull rope penetrates into the accommodating space of the frame body from a rope hole in the top wall of the frame body and is connected with the counterweight;
the bottom end of each ladder rope or ladder belt penetrates into the accommodating space of the frame body from one side hole of one side wall of the frame body and is connected with the counterweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910973578.8A CN112727335A (en) | 2019-10-14 | 2019-10-14 | Venetian blind and lower rail of venetian blind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910973578.8A CN112727335A (en) | 2019-10-14 | 2019-10-14 | Venetian blind and lower rail of venetian blind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112727335A true CN112727335A (en) | 2021-04-30 |
Family
ID=75588444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910973578.8A Pending CN112727335A (en) | 2019-10-14 | 2019-10-14 | Venetian blind and lower rail of venetian blind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112727335A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2567330Y (en) * | 2002-08-28 | 2003-08-20 | 亿丰综合工业股份有限公司 | Shutter without exposed pulling rod |
| CN2660080Y (en) * | 2003-04-21 | 2004-12-01 | 亿丰综合工业股份有限公司 | Gravity regulator of curtain down rail |
| CN2700529Y (en) * | 2004-04-19 | 2005-05-18 | 亿丰综合工业股份有限公司 | Curtain lower rail with balancing function |
| CN200961437Y (en) * | 2006-09-25 | 2007-10-17 | 亿丰综合工业股份有限公司 | Shutter curtain pull rope, ladder rope and lower beam fixing structure |
| CN203531716U (en) * | 2013-10-15 | 2014-04-09 | 郑立铭 | Improved window curtain |
| CN209067078U (en) * | 2018-05-05 | 2019-07-05 | 上海尚潮智能遮阳技术有限公司 | Multi-functional installation roller shutter |
| CN209444229U (en) * | 2018-12-26 | 2019-09-27 | 常熟中勤建材有限公司 | A kind of combined type lower beam structure of shutter |
-
2019
- 2019-10-14 CN CN201910973578.8A patent/CN112727335A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2567330Y (en) * | 2002-08-28 | 2003-08-20 | 亿丰综合工业股份有限公司 | Shutter without exposed pulling rod |
| CN2660080Y (en) * | 2003-04-21 | 2004-12-01 | 亿丰综合工业股份有限公司 | Gravity regulator of curtain down rail |
| CN2700529Y (en) * | 2004-04-19 | 2005-05-18 | 亿丰综合工业股份有限公司 | Curtain lower rail with balancing function |
| CN200961437Y (en) * | 2006-09-25 | 2007-10-17 | 亿丰综合工业股份有限公司 | Shutter curtain pull rope, ladder rope and lower beam fixing structure |
| CN203531716U (en) * | 2013-10-15 | 2014-04-09 | 郑立铭 | Improved window curtain |
| CN209067078U (en) * | 2018-05-05 | 2019-07-05 | 上海尚潮智能遮阳技术有限公司 | Multi-functional installation roller shutter |
| CN209444229U (en) * | 2018-12-26 | 2019-09-27 | 常熟中勤建材有限公司 | A kind of combined type lower beam structure of shutter |
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Application publication date: 20210430 |