CN2678514Y

CN2678514Y - Control gear of curtain

Info

Publication number: CN2678514Y
Application number: CN 200320124375
Authority: CN
Inventors: 粘铭; 温优泽
Original assignee: Nien Made Enterprise Co Ltd
Current assignee: Nien Made Enterprise Co Ltd
Priority date: 2003-12-10
Filing date: 2003-12-10
Publication date: 2005-02-16
Anticipated expiration: 2013-12-10

Abstract

The utility model provides a control gear of curtain. The control gear of curtain mainly comprises a containing unit, a rope controlled unit and a braking unit. The containing unit is fixed in one fixed rail of the curtain. The rope controlled unit is composed of a rope rolling wheel, a control rope, a clamping wheel and a clutching element. The rope rolling wheel is pivotally connected with the containing unit, one end of the control rope is fixed on the rope rolling wheel, and the other end of the control rope is hung downwards for a user to operate by foreign forces, so that the rope rolling wheel can be driven to rotate by the control rope. The clamping wheel which is sheathed with the rope rolling wheel is fixed with a shadowing assembly, and the clutching element is connected with the rope rolling wheel and the clamping wheel, so that when the clutching element is driven by the rope rolling wheel to rotate in the first preset rotating direction, the state of simultaneous rotation can be formed between the rope rolling wheel and the clamping wheel, or when the clutching element is driven by the rope rolling wheel to rotate in the second preset rotating direction, the state of non-simultaneous rotation can be formed between the rope rolling wheel and the clamping wheel. The braking unit which is pivotally connected with the containing unit is provided with a clamping assembly on the side of the clamping wheel, so that the elevation and positioning of the shadowing assembly can be controlled.

Description

The controlling organization of curtain

Technical field

The utility model is relevant with curtain, specifically is meant a kind of controlling organization of curtain.

Background technology

Press, with the Window curtain structure of at present general numerous kinds, it mainly can generally be divided into has the stay cord of exposing and nothing to expose stay cord two big classes.

Wherein, have the curtain general structure that exposes stay cord nothing more than include rail on, once rail, is laid in shield assemblies between this upper and lower rail (as the cloth curtain of roller shutter, most blades of sun blind ... Deng) and one in order to this shield assemblies is linked to the elevating mechanism between this upper and lower rail; And general elevating mechanism is to be fixedly arranged on this ratchet in rail and to cooperate some stay cords that are arranged between this upper and lower rail, shield assemblies and this ratchet to do holistic binding by one, and local stay cord system passed by this ratchet and reveal show in outside, for the traction that the user spurs or unclasps, do to desire the variation of dead area to control this shield assemblies of this time rail interlock; Only, this kind has in the curtain that exposes stay cord, exposes the stay cord ran for the user controls, is the cast loop of a sealing, and this loop the child play with or careless pullling under, very easily cause the injury of tangling or also even the accident that strangulation causes death by suffocation takes place.

In addition, expose the Window curtain structure of stay cord, include rail on substantially, rail, is laid in shield assemblies and between this upper and lower rail in order to this shield assemblies is linked to the elevating mechanism between this upper and lower rail once with nothing; Wherein this elevating mechanism then is fixedly arranged on the spring in the rail on this by some, cooperates some positioning ropes that are arranged between this upper and lower rail and this shield assemblies, and the dead area of being controlled shield assemblies changes; Certainly, do not have the curtain that exposes stay cord and the elevating mechanism that utilizes other pattern is also arranged (as directly utilizing the tension force of positioning rope ... Deng), only, no matter utilize the elevating mechanism of which kind of pattern, its mode of operation is neither if direct control exposes stay cord is the easy of interface, and utilize spring or positioning rope also easily to have the spring facts tired or the positioning rope tension recovery to take place, and cause the service life of product not satisfactory.

The utility model content

Main purpose of the present utility model is to provide a kind of controlling organization of curtain, can have simultaneously not have to expose the security of stay cord curtain and the operation ease that exposes the stay cord curtain is arranged.

Another purpose of the present utility model is to provide a kind of controlling organization of curtain, can with for user operation expose in addition hidden collection of stay cord, to reduce the danger that the child tangles strangulation.

For achieving the above object, the controlling organization of a kind of curtain that the utility model provides, in order to the shielding status variation of control curtain shield assemblies, it consists predominantly of:

One accommodating unit is fixedly arranged in the retaining rail part of this curtain;

One rope control unit, has a bull wheel, one control rope, one blocking wheel and a clutch part, this bull wheel and this accommodating unit articulate, this control rope is fixed on this bull wheel with the one end, the other end is then bestowed external force and is controlled toward sagging putting for the user, this bull wheel can be rotated by the drive of this control rope, this blocking wheel and this bull wheel socket and affixed with this shield assemblies, this clutch part and this bull wheel and this blocking wheel link, make by this bull wheel and drive this clutch part when the first predetermined rotation direction is rotated, can will form between this bull wheel and this blocking wheel with moving state, or when the second predetermined rotation direction is rotated, can form non-between this bull wheel and this blocking wheel with moving state;

One brake unit is articulated on this accommodating unit, has a blocking assembly at this blocking wheel side, can be subjected to the interlock effect of this control rope, and forms the state of clip or disengaging with this blocking wheel, with lifting and the location of controlling this shield assemblies.

Wherein also include an involution unit, affixed with this bull wheel, when making moving this bull wheel rotation of this control rope band, this involution unit can produce the pre-power of a backrush, and user's external force just can be collected should control restricting furl on this bull wheel when disappearing.

Wherein this accommodating unit includes a pedestal, and an end face of this pedestal is formed with an accommodation chamber, and the other end then is formed with a logical perforation of passing through to this accommodation chamber, and an end of this bull wheel is penetrated in this accommodation chamber by this perforation; This involution unit is a volute spring, places this accommodation chamber, and affixed with one end and this bull wheel, and the other end is then affixed with this pedestal, makes this volute spring can be subjected to the rotary action of this bull wheel and produces the pre-power of backrush.

Wherein this accommodating unit also includes a capping, and involution forms in this pedestal on the end face of this accommodation chamber, so that this accommodation chamber is sealed, avoids this involution unit to emerge in outside this pedestal.

Wherein this pedestal end face one corner of forming this perforation is formed with a pivot trepanning, wears and articulates for this brake unit.

Wherein this accommodating unit includes a main lid, and this main lid portion inside is formed with a room, and in wherein, an end of this main lid outside also protrudes out and is formed with a top supporting part for this bull wheel, clutch part and this blocking wheel set; This blocking assembly has a clamping piece, is articulated in the end outside of this main lid with its stage casing, and the position is below this top supporting part, and two ends of this clamping piece also can define a claw and an impedance part; This brake unit also has a pre-power spring, set is between this top supporting part and this impedance part, with can make by this impedance part of elastic force pushing tow of himself this claw pivot pendulum to this blocking wheel butt, or be subjected to the interlock effect of this control rope and, this claw separated with this blocking wheel by this this pre-power spring of impedance part compression.

Wherein this bull wheel is made of a circular body of rod and two fins that radially extend from this body of rod stage casing, and this two fins spacing has predetermined distance, make this body of rod can define serving section, a positioning section and the linkage section between this two fin at these fin opposite sides in these fin one sides and the pivot joint of this accommodating unit, and a fin side close with this linkage section also extended axially a socket section, makes between this socket section and this linkage section to be formed with a link slot; This control rope is fixed in this serving section with one section; This blocking wheel can define a connecting section and a stopper section, and this connecting section is placed in the link slot of this bull wheel; This clutch part then is placed on outside the stopper section of the socket section of this bull wheel and this blocking wheel.

Wherein this blocking wheel has a single direction ratchet and a connection piece, and this single direction ratchet periphery is formed with most ratchets in the same way, and its axle center is formed with a sleeve joint hole; This connector can define a connecting section, a stopper section and a cover section of pulling according to giving, this connecting section and this bull wheel socket, this stopper section for and this clutch part socket, this sleeve joint hole socket of Duan Zeyu of pulling of this cover is moved this single direction ratchet and this connector together.

Wherein this blocking wheel also has a unidirectional spring, be fixed on this connector with the one end, and be fixed on this single direction ratchet with the other end, this connector can be moved together in a direction of rotation and this single direction ratchet, and be non-for moving together in another direction of rotation and this single direction ratchet.

Wherein this blocking wheel has a friction wheel and a connection piece, and this friction wheel has the surface of high coefficient of friction, and its axle center is formed with a sleeve joint hole; This connector can define a connecting section, a stopper section and a cover section of pulling according to giving, this connecting section and this bull wheel socket, this stopper section for and this clutch part socket, this sleeve joint hole socket of Duan Zeyu of pulling of this cover is moved this friction wheel and this connector together.

Wherein this blocking wheel also has a unidirectional spring, is fixed on this connector with the one end, and is fixed on this friction wheel with the other end, this connector can be moved together in a direction of rotation and this friction wheel, and be non-for moving together in another direction of rotation and this friction wheel.

Wherein this clutch part is a unidirectional fastening spring, has can to tighten its internal diameter when a rotation direction is rotated, and can unclasp the characteristic of its internal diameter when another rotation direction rotation.

Wherein this brake unit also has into power assembly, a trace and a pre-power spring, this goes into the end that the power assembly is fixed in this trace, this trace is articulated in this accommodating unit, and can be subjected to the effect of this control rope and beat, the other end of this trace is formed with a service portion, make when this stressed assembly and be subjected to the effect of this control rope and during beat, but this service portion of interlock pushes against this blocking assembly, makes the state that forms disengaging between this blocking assembly and this blocking wheel; This pre-power spring places between this blocking assembly and this accommodating unit, when making this control rope not stressed, can be pushed against this blocking assembly by the elastic force of this pre-power spring, makes the state that forms clip between this blocking assembly and this blocking wheel.

Wherein this stressed assembly has a beat spare and a stressed member, this beat spare is made of the body and two sleeve through part that form from this body the same side horizontal expansion of a hollow, and this each sleeve through part is formed with the pivoted hole of a correspondence respectively, this beat spare partly sets firmly an end that is sheathed on this trace with the hollow of this body, make this wear the position outside a side of this trace, this stressed member is hubbed between this two sleeve through part, and the circle that is subjected to this control rope around, make and to drive this beat spare pivot pendulum and this trace that pivots in the same way by the effect of this control rope.

Wherein this accommodating unit has one to pulling portion; The stage casing of this trace also is formed with a limiting section, can go into the effect of the controlled rope making of power assembly and pivot pendulum during to predetermined angle in this, supports the portion's butt of pulling with this, to limit the anglec of rotation of this stressed assembly and this trace.

Wherein this accommodating unit includes a fastening assembly, and this fastening assembly has one first retaining piece and one second retaining piece, and this first retaining piece forms one first tank, and this second retaining piece forms one second tank; This trace, only can rotate in the original place to limit this trace between this first tank and this second tank with set.

Wherein this brake assemblies has a clamping piece, this clamping piece is hubbed on this accommodating unit, and the position is below this blocking wheel, the one end is formed with a claw, the other end then is formed with an impedance part, put by pivot in order to the interlock that is subjected to this control rope for this impedance part, and then the state that is clip or separates between this claw of interlock and this blocking wheel.

Wherein this brake assemblies also has a resistance piece, and this resistance piece is by a resistance piece and affixed the forming of an effect piece; Also be formed with opening slippage slot up between the claw of this clamping piece and this impedance part, a side of this slippage slot then is formed with a slip hole that is communicated with this slippage slot, and this slip hole is strip; This effect piece is arranged in this slippage slot and articulates with this slip hole, this resistance piece is hubbed on this accommodating unit, when making this impedance part pivot pendulum, this effect piece just can be along this slip hole displacement in this slippage slot, the state that contacts or break away from formation between this resistance piece of interlock and this blocking wheel.

The structure of a kind of curtain that the utility model provides consists predominantly of:

Rail on one is fixed in the apical margin of a window;

One connecting rod is hubbed on this among rail, and rotated by the original place of the effect of external force;

One shield assemblies links with this connecting rod, and hangs down and place the below of rail this on, and can be subjected to the rotation drive of this connecting rod and rise, descend, and covers the area of window with change;

One controlling organization, be arranged in rail on this in link with this connecting rod, have one and be available for users to control and stowable control rope, make the effect that can restrict by this control and the state that form clip or unclasp this connecting rod, whether with the rotation of controlling this connecting rod.

Description of drawings

For also deep understanding and approval being arranged, enumerate following preferred embodiment, and conjunction with figs. is illustrated in the back to feature of the present utility model and purpose:

Fig. 1 is the three-dimensional exploded view of the utility model first preferred embodiment.

Fig. 2 is the user mode schematic diagram of preferred embodiment shown in Figure 1.

Fig. 3 is the local constitutional diagram of preferred embodiment shown in Figure 1; Be that its main lid is removed.

Fig. 4 is the local constitutional diagram of preferred embodiment shown in Figure 1; Be that its main lid and unidirectional fastening spring are removed.

Fig. 5 is the cutaway view of preferred embodiment shown in Figure 1; It shows that mainly the involution unit is in not being subjected to external force to make the state of time spent.

Fig. 6 is the cutaway view of preferred embodiment shown in Figure 1; It shows that mainly the involution unit is in the state that is subjected to the time spent that external force is done.

Fig. 7 is the cutaway view of preferred embodiment shown in Figure 1; Its main display card detent roller and brake unit are in not being subjected to external force to make the state of time spent.

Fig. 8 is the cutaway view of preferred embodiment shown in Figure 1; Its main display card detent roller and brake unit are in being subjected to external force to make the state of time spent.

Fig. 9 is the cutaway view of preferred embodiment shown in Figure 1; It shows that mainly brake unit and main lid are in not being subjected to external force to make the state of time spent.

Figure 10 is the cutaway view of preferred embodiment shown in Figure 1; It shows that mainly brake unit and main lid are in being subjected to external force to make the state of time spent.

Figure 11 is the cutaway view of preferred embodiment shown in Figure 1; It mainly shows the state that wears of control rope.

Figure 12 is the cutaway view of preferred embodiment shown in Figure 1; It shows that mainly unidirectional fastening spring is in not being subjected to external force to make the state of time spent.

Figure 13 is the cutaway view of preferred embodiment shown in Figure 1; It shows that mainly unidirectional fastening spring is in being subjected to external force to make the state of time spent.

Figure 14 is the three-dimensional exploded view of the utility model second preferred embodiment.

Figure 15 is the local constitutional diagram of preferred embodiment shown in Figure 14; Be that its main lid is removed.

Figure 16 is the cutaway view of preferred embodiment shown in Figure 14; Its main display card detent roller and brake unit are in not being subjected to external force to make the state of time spent.

Figure 17 is the cutaway view of preferred embodiment shown in Figure 14; Its main display card detent roller and brake unit are in being subjected to external force to make the state of time spent.

Figure 18 is the cutaway view of preferred embodiment shown in Figure 14; It mainly shows the state that wears of control rope.

Figure 19 is the three-dimensional exploded view of the utility model the 3rd preferred embodiment.

Figure 20 is the cutaway view of preferred embodiment shown in Figure 19; Its main display card detent roller and brake unit are in not being subjected to external force to make the state of time spent.

Figure 21 is the cutaway view of preferred embodiment shown in Figure 19; Its main display card detent roller and brake unit are in being subjected to external force to make the state of time spent.

The specific embodiment

See also Fig. 1 to Fig. 4, for the utility model provides the controlling organization (100) of a kind of curtain of first preferred embodiment, it consists predominantly of an accommodating unit (10), rope control unit (20), a brake unit (30) and an involution unit (40), wherein:

This accommodating unit (10) has a pedestal (11), a main lid (12), a fastening assembly (13) and a capping (14).

This pedestal (11) is rectangular without exception block, be recessed to form the accommodation chamber (111) of a desired depth on the one end with predetermined width, and be connected to form an opening (112) to the external world in sidewall one place of this accommodation chamber (111), the other end of this pedestal (11) (promptly forming the opposing end face of this accommodation chamber (111)) then is formed with a logical perforation (113) and the pivot trepanning (114) at this end face corner that passes through this accommodation chamber (111), and the aperture of this perforation (113) is less than the internal diameter of this accommodation chamber (111).This main lid (12) is a downward opening lid, its inside is formed with the room (121) of a predetermined volume, the two ends of this main lid (12) also are formed with a port that has preset width and be in communication with the outside respectively, and in the side pre-position of a port wherein and be formed with a top supporting part that protrudes out outward (122), this main lid (12) is in abutting connection with a lateral margin place of downwardly facing opening, be formed with one and support the portion (123) of pulling, should support the portion (123) of pulling and be one and be the tank of depression.This fastening assembly (13) has one first retaining piece (131) and one second retaining piece (132), one lateral margin of this first retaining piece (131) is formed with a semicircular in shape and downward opening first tank (133), this second retaining piece (132) side of this main lid (12) (supporting portion (123) homonymy of pulling with this) certainly extends and forms, and a lateral margin of this second retaining piece (132) is formed with a semicircular in shape and opening second tank (134) up.This capping (14) is put at this pedestal (11) in order to lock and is formed on the end face of this accommodation chamber (111), and this accommodation chamber (111) can be sealed.

This rope control unit (20) has a bull wheel (21), control rope (22), a blocking wheel (23) and a clutch part (24).

This bull wheel (21) mainly is made of a body of rod (211), two fins (212) and a socket section (216).Wherein this body of rod (211) is a round bar; This two fin (212) surface location in this body of rod (211) stage casing certainly encircles and convexes into, and between this two fin (212) and apart from preset space length is arranged, make this round bar (211) can define serving section (213) and difference position positioning section (214) and a linkage section (215) outside this each fin (212) between this two fin (212) respectively, the diameter of this positioning section (214) is slightly less than perforation (113) aperture of this accommodating unit (10) and penetrates in this perforation (113); Institute axially protrudes out and forms on fin (212) side of contiguous certainly this linkage section (215) of this socket section (216), and the external diameter of this socket section (216) is greater than the external diameter of this linkage section (215), and makes the link slot (217) that is formed with a depression between this socket section (216) and this linkage section (215).This control rope (22) is tied to the one end on the serving section (213) of this bull wheel (21), and the other end then intrinsic piece (not shown) that hangs down makes this control rope (22) can be by the weight with the piece that should hang down itself, and this serving section (213) is located past sagging putting certainly.This blocking wheel (23) has a single direction ratchet (231) and a connection piece (232), and this single direction ratchet (231) is that a periphery is formed with most ratchets of ratchet in the same way, and its axle center also is formed with one and is hexagonal sleeve joint hole (233); This connector (232) generally is a cylinder, and can define link slot (217) the groove footpath of an external diameter and this bull wheel (21) respectively with wide connecting section (234) by one end to the other end in regular turn, the cover section of pulling (236) that a stopper section (235) that one external diameter is identical with this socket section (216) external diameter and a section are the hexagonal cylindricality, and formation one non-circular driving groove (237) (this driving groove is a hex shaped groove in present embodiment) on the end face of contiguous this cover section of pulling (236), this single direction ratchet (231) just can be placed on the cover section of pulling (236) of this connector (232) by this sleeve joint hole (233) special formed and urgent; This clutch part (24) is a unidirectional fastening spring (241), this unidirectional fastening spring (241) has by single rotation direction (as Figure 13, according among the figure shown in the direction, can be tightened its internal diameter when rotating for clockwise direction) then can be loose (as Figure 12 in the time of can being deflated state by another rotation direction rotation when rotating, according among the figure shown in the direction, can unclasp its internal diameter when counterclockwise rotating) characteristic of state, and this unidirectional fastening spring (241) is not in being subjected to external force to do the time spent, and its internal diameter slightly stopper section (235) external diameter with the socket section (216) of this bull wheel (21) and this blocking wheel (23) is identical.

This brake unit (30), the state person that can form clip or unclasp with the blocking wheel (23) of this rope control unit (20) by the effect of external force.This brake unit (30) has into power assembly (31), a trace (32), a brake assemblies (33) and a pre-power spring (34).This is gone into power assembly (31) and has a beat spare (311), a stressed member (312) and positioning piece (313); This beat spare (311) is made of with the sleeve through part (315) that the preset space length extension forms from this body (314) homonymy the body (314) and two of an inner hollow, and wherein the pivoted hole (316) of a position correspondence is gone up and be formed with respectively to this each sleeve through part (315); This stressed member (312) is the rolling wheel of an axle center hollow, is positioned between two sleeve through part (315) of this beat spare (311); This keeper (313) generally is one to be the block of ㄇ shape, and in placing hole (317) near being formed with one respectively on the surface of two free ora terminalis, this respectively places each sleeve through part (a 315) outside at this beat spare (311) respectively, hole (317), and be placed through this quill shaft that respectively places hole (317), pivoted hole (316) and this stressed member (312) in the heart by a latch (318), this stressed member (312) can be hubbed between this two sleeve through part (315), and can rotate relative to this latch (318).This trace (32) but the boundary goes out a round bar (321), a limiting section (322) and a service portion (323), this limiting section (322) generally forms in the middle section position one side institute horizontal expansion of this round bar (321), this service portion (323) is then formed by the distolateral edge institute horizontal expansion of this round bar (321), and this limiting section (322) and this service portion (323) are positioned at the homonymy of this round bar (321); This round bar (321) penetrates to go after this goes into body (314) inside of power assembly (31) with its free end again and passes a predetermined length, and makes this body (314) and this round bar (321) form affixed and state that move together.This brake assemblies (33) has a clamping piece (331), one end of this clamping piece (331) is formed with a upwardly extending claw (332), the other end then is formed with an impedance part (333), and the upper face of this impedance part (333) protrudes out and is formed with a positioning block (334).This pre-power spring (34) is placed on this locating piece (334) with the one end.

This involution unit (40) is a volute spring, place the accommodation chamber (111) of this accommodating unit (10), and be fixed in the one end on positioning section (214) end face of this rope control unit (20), the other end then is piercing in outside the opening (112) of this accommodation chamber (111), and is subjected to the restriction of this opening (112) periphery and can't be inserted in this accommodation chamber (111).

The above-mentioned composition member that is the controlling organization (100) of the utility model first curtain that preferred embodiment provides, now is described below its assembling mode and occupation mode thereof again:

At first, when desire is assembled structure of the present utility model, the unidirectional fastening spring (241) of control unit (20) of will restricting earlier is placed on outside the stopper section (235) of the socket section (216) of this bull wheel (21) and this blocking wheel (23) respectively by its two end, and be placed in the link slot (217) of this bull wheel (21) by the connecting section (234) of this blocking wheel (23), make between this bull wheel (21) and this blocking wheel (23) to form and link but for moving state, again with this bull wheel (21), blocking wheel (23) and this unidirectional fastening spring (241) are placed in main lid (12) room (121) of this accommodating unit (10), and the positioning section (214) of this bull wheel (21) and be exposed to this main lid (12) an end outside, the single direction ratchet (231) of this blocking wheel (23) then be exposed to this main lid (12) the other end outside; Now, the positioning section (214) of this bull wheel (21) is penetrated in the perforation of this pedestal (11) (113), and the end face that makes this positioning section (214) stretches in this accommodation chamber (111), again this involution unit (40) is placed in this accommodation chamber (111), and be fixedly arranged on this positioning section (214) by an end of its inside, outside one end with this involution unit (40) is passed (as shown in Figure 5) by this opening (112) again, and then this capping (14) envelope is butted on outside this accommodation chamber (111), this involution unit (40) is subject in this accommodation chamber (111); Now, with trace (32) one ends of this brake unit (30) (pass an end of this body (314) but not form the end of this service portion (323)), penetrate in the pivot trepanning (114) of this pedestal (11), and round bar (321) lower portion between this limiting section (322) and this service portion (323) is placed in second tank (134) of this second retaining piece (132), make this limiting section (322) position supporting in the portion (123) of pulling at this main lid (12), and with its cell wall from a predetermined distance is arranged, again this first retaining piece (131) is locked in the side of this main lid (12), and make first position of round bar (321) between this limiting section (322) and this service portion (323), the position just only can be subject in this first tank (133) and this second tank (134) this trace (32) and rotates in first tank (133) of this first retaining piece (131); Now is articulated in clamping piece (331) stage casing of this brake unit (30) on the end face of this main lid (12) again, and the position is in the below of this blocking wheel (23), again will this pre-power spring (34) place between the locating piece (334) of the top supporting part (122) of this main lid (12) and this clamping piece (331), the impedance part (333) that makes this clamping piece (331) can be pressed down by the elastic force of this pre-power spring (34) and pivot pendulum down, and the claw of interlock opposite side (332) up pivot pendulum and with the ratchet bridle joint of this blocking wheel (23), and this impedance part (333) position is in the top of this service portion (323), now will be controlled the vertical end of putting of rope (22) earlier by passing between this stressed member (312) and this keeper (313), more past sagging putting (as shown in figure 11) between these stressed member (312) one circle backs are by this stressed member (312) and this keeper (313); In this, just finish the assembly program of the utility model mechanism.

Now, the occupation mode with present embodiment controlling organization (100) is described below again:

At first, with sun blind is example (as shown in Figure 2), controlling organization of the present utility model (100) is inserted and be fixed in the last rail (A) of a curtain, and will be arranged in rail on this (A) utilize stay cord (C) and rail (E) once be connected with scrolling shield assemblies (D) (this figure be with most blades of sun blind represent, as being that roller shutter then is a heavy curtain ... waiting other kenel) connecting rod (B) that rises, descend is connected in the driving groove (237) of this rope control unit (20), makes this connecting rod (B) link and be with the state that moves with this blocking wheel (23).

In this, when desire up spurs curtain blade (desire originally the position of blade up during pull-up one predetermined altitude), just should control down drawing of rope (22) earlier by the user, this moment is because an end of this control rope (22) is to be fixed on this bull wheel (21), and controlled rope making (22) circle around stressed member (312) axle center position in the oblique below of this bull wheel (21), therefore when control restrict (22) be subjected to external force that the user executes down during drawing, just can suffered downforce be conducted on this stressed member (312) by this control rope (22), making this stressed member (312) this beat spare of interlock (311) beginning is that the axle center is toward below pivot pendulum with this trace (32), this stressed member this moment (312) just drives this trace (32) and rotates in the same way, make the just pivot pendulum and lean portion (123) cell wall (as shown in figure 10) of pulling that supports up of limiting section (322) that is positioned at this round bar (321) opposite side to this main lid (12), this trace (32) just is obstructed and no longer rotation this moment, and only make this control rope (22) continue down drawing by the external force that the user executed, the service portion (323) that be positioned at this limiting section (322) homonymy this moment also can be simultaneously pivot pendulum up, make by this service portion (323) the impedance part (333) of this clamping piece (331) contact pivot pendulum and this pre-power spring (34) compressed up, make the claw (332) of this clamping piece (331) understand down pivot pendulum, and form the state (as shown in Figure 8) that breaks away from the ratchet of this blocking wheel (23), and this one is subjected to this control rope (22) institute's drawing and the bull wheel (21) that rotates simultaneously, also begin to drive rotation in the same way by friction by the outer surface of this socket section (216) and the inner surface of this unidirectional fastening spring (241), make unidirectional fastening spring (241) that this direction rotation can be tightened internal diameter just can begin to be clamped in the stopper section (235) of this socket section (216) and this blocking wheel (23), this bull wheel (21) and this blocking wheel (23) just can be by the clamping action of this unidirectional fastening spring (241) with moving state, and connecting rod (B) driven rotary that will be moving together with this blocking wheel (23) makes and the blade of this curtain up can be folded.

So, when desire will rise to the blade location in precalculated position, then only need to control rope (22) and slightly unclasp a bit of length, make this pre-power spring (34) by compression the back stretch that produced of back restrict (22) down during the external force of drawing greater than executing in this control, this pre-power spring (34) just can be pushed the impedance part (333) of this clamping piece (331), make the position understand up pivot pendulum at the claw (332) of this impedance part (333) opposite side, and with the ratchet engagement (as shown in Figure 7) of this blocking wheel (23), make just can't go again this blocking wheel (23) at this moment and rotate and locate, cause the connecting rod (B) that is subjected to this blocking wheel (23) institute interlock and blade just to form the state of locating this moment simultaneously.

Now, because at this control rope (22) down during drawing, the positioning section (214) of this bull wheel (21) also can be simultaneously with involution unit (40) the one end rotary tightenings that set firmly thereon, cause this involution unit (40) deflation and produce a pre-power (as shown in Figure 6) that unclasps, therefore as user during with control rope (22) relieving that originally is gripped in the hand, this involution unit (40) just can be because of the not stressed state that returns back to that pins down of no external force (power that the user executed), make this bull wheel (21) just can be subjected to the drive of this involution unit (40) and be rotated (as shown in Figure 5) (rotation direction of this rotation direction during with drop-down control rope is opposite), enabling to control rope (22) furls and is wound on this bull wheel (21), and only be exposed at outward outside this bull wheel (21) by its vertical piece and do not have the doubt that control rope (22) exposes, to reduce the danger of tangling strangulation.In addition, in this special instruction, because this unidirectional fastening spring (241) only can clamp in single rotation direction, and this rotation direction is identical with the rotation direction that this bull wheel (21) discharges this control rope (22), so the rotation direction of this bull wheel (21) when furling this control rope (22), can't tighten this unidirectional fastening spring (241), so just can make this blocking wheel (23) not be subjected to the same moving of this bull wheel (21), make when furling control rope (22) and can't the height of curtain blade be exerted an influence.

Outstanding again, when desire is done the reduction of an appropriateness height with this curtain blade, to control rope (22) work one (a bit of length) drop-down slightly this moment earlier, and this drop-down distance is extremely short, can't make this unidirectional fastening spring (241) clamp this blocking wheel (23), promptly meaning this bull wheel (21) is non-being with moving state with this blocking wheel (23) at this moment, therefore restrict (22) slightly down during drawing when this control, also can make this beat spare (311) work one beat and then this service portion of interlock (323) push against this impedance part (333) and compress this pre-power spring (34), and the claw (332) of this clamping piece (331) and the ratchet of this blocking wheel (23) are broken away from, just can drive this blocking wheel (23) rotation this moment by the weight of blade itself and then blade is dropped to predetermined height; And when height that desire stops blade being positioned to be scheduled to, just the external force that will bestow control rope (22) is eliminated (promptly unclasping this control rope (22)), this pre-power spring (34) is replied once again, and with the claw (332) of this clamping piece (331) once again with this blocking wheel (23) bridle joint, make this blocking wheel (23) can't go rotation again, so just can be with the location of this appropriateness of this blades height.

Thus, control structure provided by the utility model, can not only be controlled the highly control interface of ascending, descending of blade (shield assemblies) by the single control rope conduct of putting (non-loop) of hanging down, so that the user to be provided the most convenient, simply control mode, and increase user's property convenient for control; Again and, owing to this bright control rope also can by the pre-power of the answer of involution unit be carried out be collected in this bull wheel in, dive because of existing and there is the exposed danger of rope yarn (control rope), can make its security greatly increase.

In addition, specify that keeper in the present embodiment has can avoid the user will control the effect that this stressed member situation of rope disengaging takes place accidentally at drawing control rope at this.The limiting section of this trace then can by and this support the conflict pull between portion, and the special-effect that keeps this trace only can pivot to put a predetermined angular, to avoid up the pivot pivot angle to spend conference the compression spring is bestowed excessive pressure, or down the pivot pivot angle is spent greatly and then can easily be caused the damage of member to causing the strength of excessive clip between blocking wheel and clamping piece.

See also Figure 14 to Figure 18, the controlling organization (200) of the curtain of second preferred embodiment is provided for the utility model, it mainly is surrounded by an accommodating unit (50), rope control unit (60), a brake unit (70) and an involution unit (not shown), a wherein big member is identical with first embodiment, precisely because main difference is:

This rope control unit (60) has a bull wheel (61), control rope (62), a blocking wheel (63) and a clutch part (64); All the member with the foregoing description is identical for this bull wheel (61), control rope (62) and this clutch part (64), only this blocking wheel (63) is made of a friction wheel (631) and a connection piece (632), the axle center of this friction wheel (631) is formed with a sleeve joint hole (633), carry out fastening socket with the cover section of pulling (636) of this connector (632), only the surface of this friction wheel (631) forms the aspect with high coefficient of friction.

This brake unit (70) has into power assembly (71), a trace (72), a brake assemblies (73) and a pre-power spring (74); This is gone into power assembly (71) and has a beat spare (711), a stressed member (712), positioning piece (713) and a latch (718) equally, and this goes into the fixedly sleeved end outside at this trace (72) of power assembly (71); This trace (72) is made of a round bar (721), a limiting section (722) and a service portion (723), this is gone into power assembly (71) and is socketed on the end of this round bar (721), and the position is in a side of this round bar (721), this limiting section (722) this round bar (721) stage casing one side horizontal expansion certainly forms, and tossing about of power assembly (71) gone at this in the position, this service portion (723) distolateral edge institute horizontal expansion of this round bar (721) certainly forms, and goes into the same side in this round bar (721), power assembly (71) position with this; This brake assemblies (73) has a clamping piece (731) and a resistance piece (732); Two ends of this clamping piece (731) are formed with a claw (733) and an impedance part (734) respectively, are formed with opening slippage slot (735) and up between this claw (733) and this impedance part (734) and form a strip slip hole (736) that is communicated with this slippage slot (735) from clamping piece (731) one sides; This resistance piece (732) is made of a mutually affixed resistance piece (737) and an effect piece (738), and this effect piece (738) set is in this slippage slot (735) and be hubbed in this slip hole (736); This clamping piece (731) is hubbed at main lid (52) one ends of this accommodating unit (50) with its stage casing, and with the side of this claw (733) position at this friction wheel (631), this resistance piece (737) then is articulated in the same end of this main lid (52), and the position is at the opposite side of this friction wheel (631).

In this, other member of present embodiment is all same as the previously described embodiments, its composition mode is also identical, but the winding method that should control rope (62) is then different with above-mentioned enforcement, be fixedly arranged on this bull wheel (61) with the one end after, pass the inboard of this stressed member (712) again with the other end in advance, again toward after up circle is around in these stressed member (712) one pre-fixing turns between this stressed member (712) and this keeper (713), at last again by past sagging the putting (as shown in figure 18) in place, the inboard of this stressed member (712).

So, though present embodiment is controlled bull wheel (61) and this blocking wheel (63) by the single control rope (62) put of hanging down to be with moving or be non-for moving, to reach the Height Adjustment and the location of control curtain shield assemblies (not shown), with the foregoing description a little difference is arranged but it makes flowing mode, the spy is described below again:

At first, when this control rope (62) is not subjected to bestowing of external force (as shown in figure 16), this pre-power spring (74) down pushes the impedance part (734) of this clamping piece (731), make just pivot pendulum and conflict up of claw (733) that the position tosses about at this impedance part (734) with the surface of this friction wheel (631), and when this clamping piece (731) when pivot is put, also can interlock be hubbed at effect piece (738) wherein, make the position that is articulated between this effect piece (738) and this clamping piece (731), can be subjected to the effect of this slip hole (736) and this clamping piece (731) pivot pivot angle degree and guide and be moved to a primary importance (F) and go up (as shown in figure 16), and act on piece (738) position when primary importance (F) goes up when this, then can conflict with the surface of this friction wheel (631) by this resistance piece (737) of interlock, make this blocking wheel (63) just can be subjected to the claw (733) of this clamping piece (731) and resistance piece (737) the institute's clip and the butt of this resistance piece (732) this moment, and be the state of the location that can't rotate.

When the shield assemblies of desiring to fold curtain (as the blade of shutter), at first should control rope (62) toward oblique upper drawing and lasting pulling by the user, make at this control rope (62) during toward the oblique upper displacement, can drive this stressed member (712) synchronously toward the oblique upper pendulum that inclines, this trace (72) just can be subjected to the drive of this stressed member (712) and rotate in the same way, make this service portion (723) can begin the impedance part (734) of this clamping piece (731) is up replaced, and then this pre-power spring (74) of compression, make just pivot pendulum and break away from the surface of this friction wheel (631) and to be discontiguous state down of this claw (733), and in this impedance part (734) pivot when pendulum up, also can should act on piece (738) by the guiding of this slip hole (736) and on position displacement to a second place (G) (as shown in figure 17) that articulates between this clamping piece (731) by interlock, make this resistance piece (737) just can be subjected to the displacement of this effect piece (738) and the surface of interlock and this friction wheel (631) breaks away to be and is not state of contact, so when continuing this control rope (62) of pulling, just can drive and rotation this unidirectional fastening spring (641) of deflation and energy this blocking wheel of interlock (63) rotation by this bull wheel (61), furl the action of shield assemblies will be fixed in curtain connecting rod (not shown) on this blocking wheel (63), so just can make this shield assemblies rise to predetermined height.

When desire will rise to the shield assemblies location of predetermined altitude, just unclasp this control rope (62) slightly, make bestow this stressed member (712) upwards the external force of pivot pendulum less than the elastic-restoring force of this pre-power spring (74), so this pre-power spring (74) just can down push this impedance part (734), and make this claw (733) up pivot pendulum once again with the surface of this friction wheel (631) connect to, and drive this effect piece (738) simultaneously toward primary importance (F) displacement, and this resistance piece (737) is contacted with the surface of this friction wheel (631), and then make this blocking wheel (63) form the state of location, so just this shield assemblies can be maintained at a predetermined height.

When desire is put down (decline) with the shield assemblies of this curtain, at first should control rope (62) slightly toward the oblique upper pulling, make slightly up pivot pendulum of this stressed member (712) beginning, and then drive this service portion (723) up contact push away the impedance part (734) of this clamping piece (731), make the just down surface disengaging of pivot pendulum and this friction wheel (631) of this claw (733), and simultaneously this resistance piece (737) is directed to the surface of this friction wheel (631) and breaks away from, so just can be by the weight of this shield assemblies self, and drive this blocking wheel (63) rotation, and this shield assemblies is dropped to a predetermined height.Moreover, because the special rotation direction design of this unidirectional fastening spring (641), therefore when this shield assemblies drove this blocking wheel (63) rotation, its rotation direction can't make the internal diameter of this unidirectional fastening spring (641) tighten, and therefore bull wheel (61) is not had any influence.

Now, because this involution unit continues the following of drawing at this control rope (62), can produce the pre-power of answer that tightens, therefore the user unclasp this control restrict (62) after, just can produce the strength of a reverse rotation by this involution unit to this bull wheel (61), make this control rope (62) just can be subjected to furling of this bull wheel (61) and rolling on this bull wheel (61), be collected in this bull wheel (61) and should control rope (62); In addition, because the rotation direction of this bull wheel (61) when furling this control rope (62) can't be tightened this unidirectional fastening spring (641), therefore can't any influence be arranged, and can not influence the shielding status of curtain shield assemblies blocking wheel (63).

See also Figure 18 to Figure 20, for the utility model provides the controlling organization (300) of the 3rd preferred embodiment curtain, its accommodating unit (50), rope control unit (80), a brake unit (90) and involution unit (not shown) of including same as the previously described embodiments; This rope control unit (80) has a bull wheel (81), control rope (82), a blocking wheel (83) and a clutch part (84) equally; This brake unit (90) has equally into power assembly (91), a trace (92), a brake assemblies (93) and a pre-power spring (94); Be with the main difference of the foregoing description:

This is gone into power assembly (91) and has a beat spare (911), a stressed member (912), positioning piece (913) and a latch (918) equally; Wherein in two pivoted holes (916) of this beat spare (911), having a pivoted hole (916) at least is to be non-circular, and two the placing in the hole (917) of this keeper (913), also there is at least one hole (917) that places to be non-circular, and be corresponding profile (non-circular) by the end of this latch (918), be placed through this quill shaft that respectively places hole (917), pivoted hole (916) and this stressed member (912) in the heart, make between keeper (913) and this beat spare (911) and can be with placing being connected of hole (917) with moving state by corresponding non-circular pivoted hole (916); Make this control rope (82), wear around the time only need pass between this stressed member (912) and this keeper (913) and get final product, and do not enclose moving part around this stressed member (912), so desiring to make this brake assemblies (93) and this blocking wheel (83) when separating, only must will should control restrict (82) toward the oblique upper drawing, make by this control rope (82) and directly contacted with this keeper (913), put and spur this keeper (913) pivot, just can drive this beat spare (911) pivot pendulum by this keeper (913), and then interlock separates (as shown in figure 21) with this brake assemblies (93) with this blocking wheel (83), and this shield assemblies can be descended, and should control rope (82) when up furling by this involution unit, also can there is no circle because of control rope (82) is around on this stressed member (912) for some reason, and reduce control rope (82) suffered frictional force when furling, the operation that furls control rope (82) is also added smoothly.

In addition, the blocking wheel (83) of this rope control unit (80) is except that having a single direction ratchet (831) and a connection piece (832), also has a unidirectional spring (838), be socketed on the cover section of pulling (836) of this connector (832), and it is affixed with one end and this cover section of pulling (836), this single direction ratchet (831) is placed on this cover section of pulling (836) with its sleeve joint hole (833), and make this unidirectional spring (838) position between the sleeve joint hole (833) of this cover section of pulling (836) and this single direction ratchet (831), and it is affixed with the other end and this single direction ratchet (831) of this unidirectional spring (838), make this single direction ratchet (831) and this connector (832) can be unidirectional same moving by this unidirectional spring (838), promptly when this connector (832) is subjected to the drawing direction rotation of this control rope (82) with this bull wheel (81), this single direction ratchet (831) can be the not state for moving together with this connector (832), and when this connector (832) furled the direction rotation of control rope (82) with this bull wheel (81), this single direction ratchet (831) can be with moving state with this connector (832); So, when desire when up drawing folds with the shield assemblies (not shown) of curtain, only must with should control rope (82) direct drawing (as shown in figure 20) down, though form the state of clip this moment between this brake assemblies (93) and this single direction ratchet (831), rotate (because this unidirectional spring of this direction of rotation (838) can not be moving together state with forming between this single direction ratchet (831) and this connector (832)) but still can drive this connector (832), rise and drive this shield assemblies by this bull wheel (81) and this clutch part (84).

Claims

1. the controlling organization of a curtain changes in order to the shielding status of controlling the curtain shield assemblies, it is characterized in that, consists predominantly of:

2. according to the controlling organization of the described curtain of claim 1, it is characterized in that, also include an involution unit, affixed with this bull wheel, when moving this bull wheel of this control rope band is rotated, this involution unit can produce the pre-power of a backrush, and user's external force just can be collected should control restricting furl on this bull wheel when disappearing.

3. according to the controlling organization of the described curtain of claim 2, it is characterized in that, wherein this accommodating unit includes a pedestal, one end face of this pedestal is formed with an accommodation chamber, the other end then is formed with a logical perforation of passing through to this accommodation chamber, and an end of this bull wheel is penetrated in this accommodation chamber by this perforation; This involution unit is a volute spring, places this accommodation chamber, and affixed with one end and this bull wheel, and the other end is then affixed with this pedestal, makes this volute spring can be subjected to the rotary action of this bull wheel and produces the pre-power of backrush.

4. according to the controlling organization of the described curtain of claim 3, it is characterized in that wherein this accommodating unit also includes a capping, involution forms on the end face of this accommodation chamber in this pedestal, so that this accommodation chamber is sealed, avoid this involution unit to emerge in outside this pedestal.

5. according to the controlling organization of the described curtain of claim 3, it is characterized in that wherein this pedestal end face one corner of forming this perforation is formed with a pivot trepanning, wears and articulates for this brake unit.

6. according to the controlling organization of the described curtain of claim 1, it is characterized in that wherein this accommodating unit includes a main lid, this main lid portion inside is formed with a room, in wherein, an end of this main lid outside also protrudes out and is formed with a top supporting part for this bull wheel, clutch part and this blocking wheel set; This blocking assembly has a clamping piece, is articulated in the end outside of this main lid with its stage casing, and the position is below this top supporting part, and two ends of this clamping piece also can define a claw and an impedance part; This brake unit also has a pre-power spring, set is between this top supporting part and this impedance part, with can make by this impedance part of elastic force pushing tow of himself this claw pivot pendulum to this blocking wheel butt, or be subjected to the interlock effect of this control rope and, this claw separated with this blocking wheel by this this pre-power spring of impedance part compression.

7. according to the controlling organization of the described curtain of claim 1, it is characterized in that, wherein this bull wheel is made of a circular body of rod and two fins that radially extend from this body of rod stage casing, and this two fins spacing has predetermined distance, make this body of rod can define serving section, a positioning section and the linkage section between this two fin at these fin opposite sides in these fin one sides and the pivot joint of this accommodating unit, and a fin side close with this linkage section also extended axially a socket section, makes between this socket section and this linkage section to be formed with a link slot; This control rope is fixed in this serving section with one section; This blocking wheel can define a connecting section and a stopper section, and this connecting section is placed in the link slot of this bull wheel; This clutch part then is placed on outside the stopper section of the socket section of this bull wheel and this blocking wheel.

8. according to the controlling organization of the described curtain of claim 1, it is characterized in that wherein this blocking wheel has a single direction ratchet and a connection piece, this single direction ratchet periphery is formed with most ratchets in the same way, and its axle center is formed with a sleeve joint hole; This connector can define a connecting section, a stopper section and a cover section of pulling according to giving, this connecting section and this bull wheel socket, this stopper section for and this clutch part socket, this sleeve joint hole socket of Duan Zeyu of pulling of this cover is moved this single direction ratchet and this connector together.

9. according to the controlling organization of the described curtain of claim 8, it is characterized in that, wherein this blocking wheel also has a unidirectional spring, be fixed on this connector with the one end, and be fixed on this single direction ratchet with the other end, this connector can be moved together in a direction of rotation and this single direction ratchet, and be non-for moving together in another direction of rotation and this single direction ratchet.

10. according to the controlling organization of the described curtain of claim 1, it is characterized in that wherein this blocking wheel has a friction wheel and a connection piece, this friction wheel has the surface of high coefficient of friction, and its axle center is formed with a sleeve joint hole; This connector can define a connecting section, a stopper section and a cover section of pulling according to giving, this connecting section and this bull wheel socket, this stopper section for and this clutch part socket, this sleeve joint hole socket of Duan Zeyu of pulling of this cover is moved this friction wheel and this connector together.

11. controlling organization according to the described curtain of claim 10, it is characterized in that, wherein this blocking wheel also has a unidirectional spring, be fixed on this connector with the one end, and be fixed on this friction wheel with the other end, this connector can be moved together in a direction of rotation and this friction wheel, and be non-for moving together in another direction of rotation and this friction wheel.

12. the controlling organization according to the described curtain of claim 1 is characterized in that, wherein this clutch part is a unidirectional fastening spring, has can to tighten its internal diameter when a rotation direction is rotated, and can unclasp the characteristic of its internal diameter when another rotation direction rotation.

13. controlling organization according to the described curtain of claim 1, it is characterized in that, wherein this brake unit also has into power assembly, a trace and a pre-power spring, this goes into the end that the power assembly is fixed in this trace, this trace is articulated in this accommodating unit, and can be subjected to the effect of this control rope and beat, the other end of this trace is formed with a service portion, make when this stressed assembly and be subjected to the effect of this control rope and during beat, but this service portion of interlock pushes against this blocking assembly, makes and forms the state that breaks away between this blocking assembly and this blocking wheel; This pre-power spring places between this blocking assembly and this accommodating unit, when making this control rope not stressed, can be pushed against this blocking assembly by the elastic force of this pre-power spring, makes the state that forms clip between this blocking assembly and this blocking wheel.

14. controlling organization according to the described curtain of claim 13, it is characterized in that, wherein this stressed assembly has a beat spare and a stressed member, this beat spare is made of the body and two sleeve through part that form from this body the same side horizontal expansion of a hollow, and this each sleeve through part is formed with the pivoted hole of a correspondence respectively, this beat spare partly sets firmly an end that is sheathed on this trace with the hollow of this body, make this wear the position outside a side of this trace, this stressed member is hubbed between this two sleeve through part, and the circle that is subjected to this control rope around, make and to drive this beat spare pivot pendulum and this trace that pivots in the same way by the effect of this control rope.

15. the controlling organization according to the described curtain of claim 13 is characterized in that, wherein this accommodating unit has one to pulling portion; The stage casing of this trace also is formed with a limiting section, can go into the effect of the controlled rope making of power assembly and pivot pendulum during to predetermined angle in this, supports the portion's butt of pulling with this, to limit the anglec of rotation of this stressed assembly and this trace.

16. controlling organization according to the described curtain of claim 13, it is characterized in that wherein this accommodating unit includes a fastening assembly, this fastening assembly has one first retaining piece and one second retaining piece, this first retaining piece forms one first tank, and this second retaining piece forms one second tank; This trace, only can rotate in the original place to limit this trace between this first tank and this second tank with set.

17. controlling organization according to the described curtain of claim 1, it is characterized in that, wherein this brake assemblies has a clamping piece, this clamping piece is hubbed on this accommodating unit, and the position below this blocking wheel, the one end is formed with a claw, the other end then is formed with an impedance part, put by pivot in order to the interlock that is subjected to this control rope for this impedance part, and then the state that is clip or separates between this claw of interlock and this blocking wheel.

18. the controlling organization according to the described curtain of claim 17 is characterized in that, wherein this brake assemblies also has a resistance piece, and this resistance piece is by a resistance piece and affixed the forming of an effect piece; Also be formed with opening slippage slot up between the claw of this clamping piece and this impedance part, a side of this slippage slot then is formed with a slip hole that is communicated with this slippage slot, and this slip hole is strip; This effect piece is arranged in this slippage slot and articulates with this slip hole, this resistance piece is hubbed on this accommodating unit, when making this impedance part pivot pendulum, this effect piece just can be along this slip hole displacement in this slippage slot, the state that contacts or break away from formation between this resistance piece of interlock and this blocking wheel.

19. the structure of a curtain is characterized in that, consists predominantly of:

Rail on one is fixed in the apical margin of a window;