CN1910334B

CN1910334B - Lifting gear for sunstroke screening material

Info

Publication number: CN1910334B
Application number: CN2003801110333A
Authority: CN
Inventors: 阿保晴也; 冈村正; 山崎孝广
Original assignee: TACHIKAWA LOUVERS INDUSTRY Co Ltd
Current assignee: TACHIKAWA LOUVERS INDUSTRY Co Ltd
Priority date: 2003-12-12
Filing date: 2003-12-12
Publication date: 2010-12-15
Anticipated expiration: 2023-12-12
Also published as: CN1910334A; AU2003289068A1; WO2005056968A1

Abstract

A lift unit of sun shade comprising first and second stopper units capable of making a selection between a state for elevating/lowering a sun shade independently while blocking gravitational lowering thereof and a state for allowing gravitational lowering by operating a single operational cord, a first clutch unit capable of making a selection among a lifting operation, a gravitational lowering operation and an operation for preventing gravitational lowering of a first sun shade by operating the operational cord in one way, and a second clutch unit capable of making a selection among a lifting operation, a gravitational lowering operation and an operation for preventing gravitational lowering of a second sun shade by operating the operational cord in the other way.

Description

Insolation masking material lifting gear

Technical field

What the present invention relates to is on insolation masking devices such as horizontal shutter, rolling up curtain, the soft curtain of bouffancy, roller shutter, can sagging supported bilayer insolation masking material, and by each masking material of operation control line descending operation, simultaneously, the lifting gear that utilizes the deadweight of this masking material to carry out the step-down operation of each masking material.

Background technology

The rolling up curtain of Te Kaiping 11-187973 communique record can come the drop window cord by operating spherical chain.And, if on casement, draw direction to operate spherical chain, then can go up the pulling process casement.

After moving desirable position on casement, decontrol spherical chain,, can prevent that casement from descending because of deadweight, and sagging of casement is held in desirable position by brakeage.

In addition, when the step-down operation casement, slightly after drawing direction to operate spherical chain on the casement, decontrol spherical chain, just removed brakeage, casement is done deadweight and is descended.

In addition,, on casement, draw direction to operate spherical chain, then can further go up the pulling process casement from sagging state that is held in desired position of casement.

The roller shutter of Te Kaiping 10-176471 communique record can be by operating control line to one of side operation, and descending operation one side's anti-dazzling screen is by to the opposing party's operating operation control line, descending operation the opposing party's anti-dazzling screen.

But the spy drives the lifting gear of the rolling up curtain of flat 11-187973 communique record, and casement is if bilayer then must have two spherical chains that are used for this casement of descending operation.

In order to operate each casement, must select any lift control line of operation.In addition, in order to operate two sides' casement, must be after having operated spherical chain of the side, the spherical chain that is handed off to the opposing party is operated.Therefore, the problem that exists the casement descending operation to complicate.

In addition, the spy drives the lifting gear of flat 10-176471 communique record, can use a double-deck anti-dazzling screen of operation control line descending operation, still, can not so that anti-dazzling screen utilize its deadweight and carry out step-down operation.

The object of the present invention is to provide a kind of lifting gear, it can operate the control line difference double-deck insolation masking material of descending operation independently with one, simultaneously, can be by once-through operation to the operation control line, make the last pulling process of each insolation masking material or any operation auto-action in the step-down operation, thus the masking material of descending operation insolation easily.

Summary of the invention

Insolation masking material lifting gear of the present invention, by first and second insolation masking material of the sagging support of top case, the transmission gear rotation that is come rotating pulley to make to be meshed with driven wheel by sagging one annular operation of top case control line by operation also makes first and second descending operation portion action, thereby can first and second insolation masking material of independent-lifting; The state that first and second insolation masking material deadweight descends is adjusted by first and second brake groups; Wherein, this insolation masking material lifting gear is provided with the first shaft coupling group and the second shaft coupling group; The first shaft coupling group be by, based on the operation of operation control line, is driven first conveying roller of the first descending operation portion and the first shaft coupling portion that the rotation of first rotating cylinder sends first conveying roller to is constituted first rotating cylinder that rotates; And, by of the operation of operation control line to a side, make the action of the first descending operation portion and first brake groups, thereby can be under can not the state of the lifting second insolation masking material, the down maneuver that goes up that pulling is done and undertaken by deadweight of the first insolation masking material and deadweight descended prevents that action from selecting; The second shaft coupling group be by, based on the operation of operation control line, is driven second conveying roller of the second descending operation portion and the second shaft coupling portion that the rotation of second rotating cylinder sends second conveying roller to is constituted second rotating cylinder that rotates; And, by of the operation of operation control line to the opposing party, make the action of the second descending operation portion and second brake groups, thereby can be under can not the state of the lifting first insolation masking material, go up down maneuver that pulling does, undertaken by deadweight and the deadweight of the second insolation masking material descended and prevent that action from selecting; Shaft coupling ball, the sliding spring that first and second shaft coupling portion is the gathering sill that forms by, the shaft coupling cylinder of being supported by power transmission shaft in the mode that can rotate, at shaft coupling cylinder outer peripheral face, move along gathering sill and stop spring and constitute; Wherein, this sliding spring is to the first or second rotating cylinder reinforcing, this stops that spring stops the revolving force of reason shaft coupling cylinder effect and the rotation of this shaft coupling cylinder of producing, simultaneously, based on revolving force, make first or second rotating cylinder and shaft coupling cylinder be the one rotation by the first or second rotating cylinder effect; Gathering sill be by, can send the revolving force of first or second rotating cylinder engagement groove of first or second conveying roller to by the shaft coupling ball and first or second conveying roller can be constituted with respect to the releasing groove that first or second rotating cylinder rotate freely; The first shaft coupling portion, will be based on the operation control line to side operation and the revolving force of first rotating cylinder of generation sends first conveying roller to, and when the deadweight decline because of the first insolation masking material makes the rotation of first conveying roller, this conveying roller and first rotating cylinder are disconnected, and rotate freely; The second shaft coupling portion, will be based on the operation control line to the opposing party operation and the revolving force of second rotating cylinder that produces sends second conveying roller to, and when the deadweight decline because of the second insolation masking material makes the rotation of second conveying roller, this conveying roller and second rotating cylinder are disconnected, and rotate freely.

In addition, the insolation masking material lifting gear of another invention, by first and second insolation masking material of the sagging support of top case, the transmission gear rotation that is come rotating pulley to make to be meshed with driven wheel by sagging one annular operation of top case control line by operation also makes first and second descending operation portion action, thereby can first and second insolation masking material of independent-lifting; The state that the deadweight of the first insolation masking material descends is adjusted by first brake groups; The second insolation masking material is gone up the state of pulling work automatically and is adjusted by second brake groups; Wherein, this insolation masking material lifting gear is provided with the first shaft coupling group and the second shaft coupling group; The first shaft coupling group be by, based on to the operation of operation control line and first rotating cylinder that rotates, first conveying roller that drives the first descending operation portion and rotation that will above-mentioned first rotating cylinder send the first shaft coupling portion formation of first conveying roller to; And, by of the operation of operation control line to a side, make the action of the first descending operation portion and first brake groups, thereby can be under can not the state of the lifting second insolation masking material, go up down maneuver that pulling does, undertaken by deadweight and the deadweight of the first insolation masking material descended and prevent that action from selecting; The second shaft coupling group be by, based on the operation of operation control line, is driven second conveying roller of the second descending operation portion and the second shaft coupling portion that the rotation of second rotating cylinder sends second conveying roller to is constituted second rotating cylinder that rotates; And, by of the operation of operation control line to the opposing party, make the action of the second descending operation portion and second brake groups, thereby can be under can not the state of the lifting first insolation masking material, to the down maneuver of the above-mentioned second insolation masking material, automatically go up that pulling is done and automatically on draw and prevent that action from selecting; Shaft coupling ball, the sliding spring that first and second shaft coupling portion is the gathering sill that forms by, the shaft coupling cylinder of being supported by power transmission shaft in the mode that can rotate, at shaft coupling cylinder outer peripheral face, move along gathering sill and stop spring and constitute; This sliding spring is to the first or second rotating cylinder reinforcing, this stops that spring stops the revolving force of reason shaft coupling cylinder effect and the rotation of this shaft coupling cylinder of producing, simultaneously, based on revolving force, make first or second rotating cylinder and shaft coupling cylinder be the one rotation by the first or second rotating cylinder effect; Gathering sill be by, can send the revolving force of first or second rotating cylinder engagement groove of first or second conveying roller to by the shaft coupling ball and first or second conveying roller can be constituted with respect to the releasing groove that first or second rotating cylinder rotate freely; The first shaft coupling portion, will be based on the operation control line to side operation and the revolving force of first rotating cylinder of generation sends first conveying roller to, and when the deadweight decline because of the first insolation masking material makes the rotation of first conveying roller, this conveying roller and first rotating cylinder are disconnected, and rotate freely; The second shaft coupling portion, will be based on the operation control line to the opposing party operation and the revolving force of second rotating cylinder that produces sends second conveying roller to, and because of the second insolation masking material automatically on pulling when second conveying roller is rotated, this conveying roller and second rotating cylinder are disconnected, and rotate freely.

In addition, the insolation masking material lifting gear of another invention, by first and second insolation masking material of the sagging support of top case, the transmission gear rotation that is come rotating pulley to make to be meshed with driven wheel by sagging one annular operation of top case control line by operation also makes first and second descending operation portion action, thereby can first and second insolation masking material of independent-lifting, the state that first and second insolation masking material deadweight descends is adjusted by first and second brake groups; Wherein, this insolation masking material lifting gear is provided with the first shaft coupling group and the second shaft coupling group; The first shaft coupling group be by, based on the operation of operation control line, is driven first conveying roller of the first descending operation portion and the first shaft coupling portion that the rotation of first rotating cylinder sends first conveying roller to is constituted first rotating cylinder that rotates; And, by of the operation of operation control line to a side, make the action of the first descending operation portion and first brake groups, thereby can be under can not the state of the lifting second insolation masking material, the down maneuver that goes up that pulling is done and undertaken by deadweight of the first insolation masking material and deadweight descended prevents that action from selecting; The second shaft coupling group be by, based on the operation of operation control line, is driven second conveying roller of the second descending operation portion and the second shaft coupling portion that the rotation of second rotating cylinder sends second conveying roller to is constituted second rotating cylinder that rotates; And, by of the operation of operation control line to the opposing party, make the action of the second descending operation portion and second brake groups, thereby can be under can not the state of the lifting first insolation masking material, the down maneuver that goes up that pulling is done and undertaken by deadweight of the second insolation masking material and deadweight descended prevents that action from selecting; First and second shaft coupling portion is by, the shaft coupling cylinder of being supported by power transmission shaft in the mode that can rotate, at the gathering sill that shaft coupling cylinder outer peripheral face forms, and the shaft coupling protuberance that combines with gathering sill, sliding spring and stop spring and constitute; This sliding spring is to the first or second rotating cylinder reinforcing, this stops that spring stops the revolving force of reason shaft coupling cylinder effect and the rotation of this shaft coupling cylinder of producing, simultaneously, based on revolving force, make first or second rotating cylinder and shaft coupling cylinder be the one rotation by the first or second conveying roller effect; Gathering sill be by, make first or second conveying roller move to the engagement groove of the position that combines with first or second rotating cylinder and the releasing groove that first or second conveying roller can be rotated freely with respect to above-mentioned first or second rotating cylinder constitutes; The first shaft coupling portion, will be based on the operation control line to side operation and the revolving force of first rotating cylinder of generation sends first conveying roller to, and when the deadweight decline because of the first insolation masking material makes the rotation of first conveying roller, this conveying roller and first rotating cylinder are disconnected, and rotate freely; The second shaft coupling portion, will be based on the operation control line to the opposing party operation and the revolving force of second rotating cylinder that produces sends second conveying roller to, and when the deadweight decline because of the second insolation masking material makes the rotation of second conveying roller, this conveying roller and second rotating cylinder are disconnected, and rotate freely.

In addition, the insolation masking material lifting gear of another invention, by first and second insolation masking material of the sagging support of top case, the transmission gear rotation that is come rotating pulley to make to be meshed with driven wheel by sagging one annular operation of top case control line by operation also makes first and second descending operation portion action, thereby can first and second insolation masking material of independent-lifting; The state that the deadweight of the first insolation masking material descends is adjusted by first brake groups; The second insolation masking material is gone up the state of pulling work automatically and is adjusted by second brake groups; Wherein, this insolation masking material lifting gear is provided with the first shaft coupling group and the second shaft coupling group; The first shaft coupling group be by, based on the operation of operation control line, is driven first conveying roller of the first descending operation portion and the first shaft coupling portion that the rotation of first rotating cylinder sends first conveying roller to is constituted first rotating cylinder that rotates; And, by of the operation of operation control line to a side, make the action of the first descending operation portion and first brake groups, thereby can be under can not the state of the lifting second insolation masking material, the down maneuver that goes up that pulling is done and undertaken by deadweight of the first insolation masking material and deadweight descended prevents that action from selecting; The second shaft coupling group be by, based on the operation of operation control line, is driven second conveying roller of the second descending operation portion and the second shaft coupling portion that the rotation of second rotating cylinder sends second conveying roller to is constituted second rotating cylinder that rotates; And, by of the operation of operation control line to the opposing party, make the action of the second descending operation portion and second brake groups, thereby can be under can not the state of the lifting first insolation masking material, to the down maneuver of the second insolation masking material and go up automatically that pulling is done and automatically on draw and prevent that action from selecting; First and second shaft coupling portion is by, the shaft coupling cylinder of being supported by power transmission shaft in the mode that can rotate, at the gathering sill that shaft coupling cylinder outer peripheral face forms, and the shaft coupling protuberance that combines with gathering sill, sliding spring and stop spring and constitute; This sliding spring is to the first or second rotating cylinder reinforcing, this stops that spring stops the revolving force of reason shaft coupling cylinder effect and the rotation of this shaft coupling cylinder of producing, simultaneously, based on revolving force, make this first or second rotating cylinder and shaft coupling cylinder be the one rotation by the first or second conveying roller effect; Gathering sill be by, make first or second conveying roller move to the engagement groove of the position that combines with first or second rotating cylinder and the releasing groove that first or second conveying roller can be rotated freely with respect to first or second rotating cylinder constitutes; The first shaft coupling portion, will be based on the operation control line to side operation and the revolving force of first rotating cylinder of generation sends first conveying roller to, and when the deadweight decline because of the first insolation masking material makes the rotation of first conveying roller, this conveying roller and first rotating cylinder are disconnected, and rotate freely; The second shaft coupling portion, will be based on the operation control line to the opposing party operation and the revolving force of second rotating cylinder that produces sends above-mentioned second conveying roller to, and because of the second insolation masking material automatically on pulling when second conveying roller is rotated, this conveying roller and second rotating cylinder are disconnected, and rotate freely.

In addition, in another invention,, possesses the idle running field in the predetermined angular, that do not transmit torque mutually that is only limited to based on the operation of operation control line is sent to the torque transmission gear of first and second rotating cylinder and this first and second rotating cylinder with revolving force.

Description of drawings

Fig. 1 is the cut-away section front view of the double rolling up curtain of expression first example.

Fig. 2 is the right view of expression first example.

Fig. 3 is the cut-away section left view of expression first example.

Fig. 4 is the sectional drawing of expression operating means.

Fig. 5 is the front view of the pulley in the expression operating means.

Fig. 6 is the front view of the gear configurations in the expression operating means.

Fig. 7 is the front view of steel plate.

Fig. 8 is the exploded perspective view of shaft coupling group.

Fig. 9 is the side view that drives rotating cylinder.

Figure 10 is the key diagram of expression shaft coupling group action.

Figure 11 is the expanded view of the gathering sill of expression conveying roller.

Figure 12 is the key diagram of expression shaft coupling group action.

Figure 13 is the key diagram of expression shaft coupling group action.

Figure 14 is the key diagram of expression shaft coupling group action.

Figure 15 is the key diagram of expression shaft coupling group action.

Figure 16 is the key diagram of expression shaft coupling group action.

Figure 17 is the sectional drawing of brake groups.

Figure 18 is the expanded view of expression brake gathering sill.

Figure 19 is the key diagram of expression shaft coupling group action.

Figure 20 is the key diagram of expression shaft coupling group action.

Figure 21 is the key diagram of expression shaft coupling group action.

Figure 22 is the cut-away section front view of expression second example.

Figure 23 is the right view of expression second example.

Figure 24 is the front view of expression operating means.

Figure 25 is the front view of expression operating means.

Figure 26 is the sectional drawing of expression the 3rd example.

Figure 27 is the sectional drawing of expression the 3rd example.

Figure 28 is the exploded perspective view of expression the 3rd example.

Figure 29 is the sectional drawing of expression the 3rd example.

Figure 30 is the sectional drawing of expression the 3rd example.

Figure 31 is the front view of the operating means of expression the 4th example.

Figure 32 is the front view of the operating means of expression the 4th example.

The specific embodiment

Below, describe with regard to best example of the present invention.

(first example)

At first, with reference to accompanying drawing, first example that the present invention is embodied as the double rolling up curtain of insolation masking device is described.

As shown in Figures 1 and 2, front window cord 2a as the rolling up curtain of the 1st insolation masking material is arranged, rear side casement 2b as the 2nd insolation masking material is arranged from the sagging support in the back of top case 1 from the sagging support in the front of top case 1.

Back at front window cord 2a and rear side casement 2b is equipped with many endless belts 3 on above-below direction, a plurality of rings 4 equally spaced are installed on this endless belt 3.

In the ring 4 that is installed on front window cord 2a, insert and be connected with lift control line 5a.The upper end of lift control line 5a in top case 1, is wound in the mode that can rotate from the front of above-mentioned top case 1 and is subjected on spool (part of the first descending operation portion) 7a that holding components 6 supports as shown in Figure 3.

The lower end of lift control line 5a is equipped with suspension hook 8a, and on this suspension hook 8a, sagging support has the ring that is positioned at foot 4 in a plurality of rings 4.Therefore, by spool 7a coiling lift control line 5a, then as shown in Figure 2, Yi Bian front window cord 2a is drawn by an edge contraction gradually from the bottom.

In addition, the lift control line of unrolling 5a, front window cord 2a is then risen by its top, recovers gradually from the sagging state of top case 1.

In the ring 4 of rear side casement 2b, insert and be connected with lift control line 5b.The upper end of lift control line 5b at the rear of spool 7a, is wound in the mode that can rotate from the rear side of top case 1 and is subjected on spool (part of the second descending operation portion) 7b that holding components 6 supports as shown in Figure 3.

In the lower end of lift control line 5b suspension hook 8b is installed, on this suspension hook 8b, sagging support has the ring that is positioned at foot 4 in a plurality of rings 4.Therefore, by spool 7b coiling lift control line 5b, Yi Bian rear side casement 2b is then drawn by an edge contraction gradually from the bottom.

In addition, the lift control line of unrolling 5b, rear side casement 2b is then risen by its top, recovers gradually from the sagging state of top case 1.

At the central part of

spool

7a, 7b, insert and be connected with driving shaft 9a, the 9b that constitutes by hexagonal axis, based on the rotation of this driving

shaft

9a, 9b,

spool

7a, 7b are rotated.

Constitute the first descending operation portion by aforesaid lift control line 5a, spool 7a, driving shaft 9a, constitute the second descending operation portion by lift control line 5b, spool 7b, driving shaft 9b.

Then, describe being used to rotate the operating means that

drives driving shaft

9a, 9b.

Be arranged at the operating means 10 of top case 1 one ends, as shown in Figure 4, the base end part of shield 11 is chimeric to be fixed on the end of top case 1.The leading section of shield 11 extends downwards from the lower limb of top case 1, by steel plate shown in Figure 7 12 leading section and the shape lid 13 usefulness screws identical with it is fixed.

As Fig. 5 and shown in Figure 6, be formed with fulcrum 14a at the leading section of shield 11, be formed with the fulcrum 14b relative in the bottom of lid 13 with fulcrum 14a.In the leading section of shield 11, driven wheel 15 props up in the mode that can rotate and is held in fulcrum 14a, 14b.Driven wheel 15, its hexagonal axis shape axial region 16 protrudes in and covers 13 sides, the chimeric pulley 17 that is equipped with on this axial region 16.The spherical chain 18 of annular hangs as the operation control line and is installed on the pulley 17.

Then, come rotating pulley 17 by operating spherical chain 18, then driven wheel 15 is rotation integratedly with pulley 17.In addition, steel plate 12 is by between driven wheel 15 and pulley 17.

Above driven wheel 15 and pulley 17, be provided with two first and second

power transmission shaft

19a, 19b in the position of equidistance at interval from the center of rotation of driven wheel 15.First and second

power transmission shaft

19a, 19b, its leading section forms hexagonal axis shape, and its leading section be formed at steel plate 12 and

cover hexagon ring

20a, 20b tabling on 13.

Therefore, first and second

power transmission shaft

19a, 19b are by covering 13 and steel plate 12, not to be supported revolvably with respect to top case 1.

As shown in Figure 6, with transmission gear 21a, the 21b of driven wheel 15 engagement, prop up in the mode that can rotate and to be held in first and second power transmission shaft 19a, 19b.Then, driven wheel 15 is to arrow A direction rotation shown in Figure 6, and

transmission gear

21a, 21b are just to the rotation of arrow b direction, and driven wheel 15 is to the rotation of arrow B direction, and

transmission gear

21a, 21b just rotate to arrow a direction.

As shown in Figure 8,, be formed with the round plate 22 bigger, on the peripheral part of this round plate, be formed with respect to the center and be 2 protuberances 23 line symmetry shape, that forward end is side-prominent than gear part diameter in the front of

transmission gear

21a, 21b.

Then, the rotation of

transmission gear

21a, 21b (torque transport unit) is sent to first and second shaft coupling group 24a, the 24b that is supported by first and second

power transmission shaft

19a, 19b by protuberance 23.

Then, the formation to the first shaft coupling group 24a describes.

As Fig. 8 and Figure 15 (a) with (b), the first shaft coupling group 24a be by rotating cylinder 25, as the first shaft coupling portion shaft coupling cylinder 26, conveying roller 27, stop spring 28 and sliding spring 29 and the first power transmission shaft 19a and constitute.

Rotating cylinder 25 forms cylindric, simultaneously, is through with the first power transmission shaft 19a in the open-work 30 that is formed at leading section, and is supported in the mode that can rotate and can not move in the axial direction by this first power transmission shaft 19a.

On the front end face peripheral part of rotating cylinder 25, in scope with respect to 90 ° at center, be formed with can be chimeric with the protuberance 23 of transmission gear 21a notch 31.Therefore, transmission gear 21a can rotate in 90 ° scope relatively with respect to rotating cylinder 25, and after the edge butt joint of protuberance 23 and notch 31, rotating cylinder 25 just can be rotation integratedly with transmission gear 21a.

On the front edge of rotating cylinder 25, the above-mentioned first power transmission shaft 19a axially on be formed with half elliptic recess 32.

Shaft coupling cylinder 26 is supported in the mode that can rotate and can not move in the axial direction by the first power transmission shaft 19a, is formed with the bonding pad 33 that projects to above-mentioned rotating cylinder 25 inside in one side.

Bonding pad 33 is formed in the scope with respect to 60 ° at center, in the inside of rotating cylinder 25, as shown in Figure 9, in 180 ° the scope on the rotary motion trace of bonding pad 33, forms end difference 34.

Therefore, in about 120 ° scope of shaft coupling cylinder 26 before the edge butt joint of the edge of bonding pad 33 and end difference 34, can relatively rotate with respect to rotating cylinder 25.

Between shaft coupling cylinder 26 and rotating cylinder 25, on the first power transmission shaft 19a, be wound with and stop spring 28.Stop spring 28 as Figure 10 (a) and (b), its both

ends

35a, 35b are bent on the rotary motion trace of the end difference 34 that projects to rotating cylinder 25 in the both sides of bonding pad 33.

Then, bonding pad 33 docks with among end 35a, the 35b any one, and the friction that stops the spring 28 and the first power transmission shaft 19a increases, thereby stops the rotation of shaft coupling cylinder 26.

In addition, the end difference 34 of rotating cylinder 25 docks with among end 35a, the 35b any one, and the friction that stops the spring 28 and the first power transmission shaft 19a reduces, thus shaft coupling cylinder 26 and stop spring 28 and be rotation integratedly with rotating cylinder 25.

On the outer peripheral face of shaft coupling cylinder 26, along the circumferential direction being formed with section is the gathering sill 36 of semicircle shape.This gathering sill 36 forms the engagement groove 37 with respect to central portion as shown in figure 11, and the releasing groove 38 at both ends moves to rotating cylinder 25 lateral deviations continuously.

In gathering sill 36,, will accommodate by the shaft coupling ball 39 that steel ball forms with the form that in this gathering sill 36, can move as Figure 15 (a) and (b).In addition, shaft coupling ball 39 is in gathering sill 36 when mobile, and this shaft coupling ball 39 can be with respect to recess 32 turnover of rotating cylinder 25 as Figure 12～shown in Figure 14.

As shown in figure 15, between the shaft coupling cylinder 26 and the first power transmission shaft 19a, be provided with sliding spring 29.And shaft coupling cylinder 26 passes through with the active force of the first power transmission shaft 19a as the sliding spring 29 of fulcrum, to conveying roller 27 reinforcings.

Conveying roller 27 is supported in the mode that can rotate and can not move in the axial direction by the first power transmission shaft 19a.The leading section of conveying roller 27 forms can be around the periphery rotation of shaft coupling cylinder 26, and its front end face is formed with three equally spaced cards of giving prominence to rotating cylinder 25 and ends projection 40.

Then, as shown in figure 14, when mobile, this shaft coupling ball 39 can move to any one card and end protruding 40 positions that combine shaft coupling ball 39 in engagement groove 37.

As Fig. 4 and shown in Figure 8, on the base end part of conveying roller 27, be formed with a pair of link piece 41, this link piece 41 is installed on the joint cap 42 by chimeric.In addition, the central part at joint cap 42 is formed with hexagon ring, the slotting driving shaft 9a that is connected with of embedding in this hexagon ring.

Therefore, driving shaft 9a is rotation integratedly by joint cap 42 and conveying roller 27.

The second shaft coupling group 24b, as Figure 16 (a) and (b), projection 40 is positioned at the opposition side this point and the first shaft coupling group 24a is an identical construction except that shaft coupling ball 39 ends with respect to card.The shaft coupling cylinder 26 of the second shaft coupling group 24b moves as the second shaft coupling portion.

As shown in Figure 1, contiguous engagement block 42 is provided with first and second brake groups 43a, 43b.This first and second brake groups 43a, 43b except that moving equally based on reverse rotation this point, are identical construction, so only the first brake groups 43a is described.

The first brake groups 43a, the brake of opening flat 11-187973 communique record with for example spy is an identical construction.As shown in figure 17, brake drum 44 embeds the slotting driving shaft 9a that is connected with at central part, thereby is rotation integratedly with this driving shaft 9a.

Brake box 45, be arranged at brake drum 44 around, supported in non-rotatable mode with respect to top case 1.Detent ball 46 is arranged between above-mentioned brake drum 44 and the brake box 45.

On the inner peripheral surface of brake box 45, be formed with along the direction of driving shaft 9a and support that in the mode that can move the section of detent ball 46 is semicircular sliding tray 47.On the outer peripheral face of brake drum 44, be formed on equally that rotating section is semicircular gathering sill 48 on the outer peripheral face.

Detent ball 46 can move along sliding tray 47 and brake gathering sill 48.Therefore, rotation brake cylinder 44, then detent ball 46 is turned round on the outer peripheral face of brake drum 44 relatively along brake gathering sill 48 on one side, along sliding tray 47 move on one side.

Describe with reference to expanded view shown in Figure 180 formation brake gathering sill 48.In Figure 18, brake drum 44 draws the direction rotation on

front window cord

2a, and 46 of detent ball relatively move to the arrow C direction on brake gathering sill 48.

In addition, brake drum 44 is to the drop-down direction rotation of

front window cord

2a, and 46 of detent ball relatively move to arrow D direction on brake gathering sill 48.

On outer peripheral face one side of brake drum 44, be formed with kerve 49 down.In following kerve 49, be communicated with first return slot, 50, the first return slots 50 to arrow C direction branch in arrow C direction and last kerve 51 intercommunications.

Be communicated with the stop slot 52 to arrow D direction branch in last kerve 51, stop slot 52 is in arrow D direction, stop at fastener 53, through upwardly extending second return slot 54 in arrow C side, with following kerve 49 intercommunications.

On the first brake groups 43a that constitutes like this, based on the operation to spherical chain 18, by the first shaft coupling group 24a, driving shaft 9a draws the direction rotation on

front window cord

2a, and 46 of detent ball move to the arrow C direction in last kerve 51.

After moving desirable position on the front window cord 2a, decontrol spherical chain 18, by the weight of front window cord 2a, lifting control line 5a unrolls, and by driving shaft 9a rotation brake cylinder 44, thereby detent ball 46 moves to arrow D direction in last kerve 51.

So detent ball 46 combines with fastener 53, stoped the unnecessary rotation of brake drum 44.Therefore, under this state, can stop the deadweight of front window cord 2a to descend.

Then, when step-down operation front window cord 2a, if operate spherical chain 18 front window cord 2a is drawn on slightly, just detent ball 46 is guided to down in the kerve 49 through second return slot 54 from fastener 53.

So detent ball 46 can turned round to arrow D direction in the kerve 49 down, so, if decontrol spherical chain 18, can carry out step-down operation by the deadweight of front window cord 2a.

In addition, at the state that combines with fastener 53 from detent ball 46, when drawing front window cord 2a on further, on front window cord 2a, draw direction to operate spherical chain 18.

So, detent ball 46 is guided to down in the kerve 49 through second return slot 54 from fastener 53, and then, guide in the kerve 51 through first return slot 50.Thereby the last pulling process of front window cord 2a can carry out by spherical chain 18.

Brake groups 43b according to being the rotation of reciprocal driving shaft 9b with the driving shaft 9a of brake groups 43a, similarly operates with the first brake groups 43a.

Then, the operation with regard to the double rolling up curtain of above-mentioned formation describes.

[the last pulling process of front window cord 2a]

For on draw front window cord 2a, will pull down to the sagging spherical chain 18 in indoor from pulley 17.So driven wheel 15 is followed this rotation to arrow A direction rotation shown in Figure 6,

transmission gear

21a, 21b rotate to arrow a direction.

Follow the rotation of transmission gear 21a, the rotating cylinder 25 of the first shaft coupling group 24a is to equidirectional rotation.So rotating cylinder 25 rotates relatively with respect to shaft coupling cylinder 26, shown in Figure 12～14, shaft coupling ball 39 moves in the engagement groove 37 from removing in the groove 38.Then, shaft coupling ball 39 is with the recess 32 of rotating cylinder 25 and the card of conveying roller 27 and ends protruding 40 states that combine.

In addition, shown in Figure 10 (b), the end difference 34 of rotating cylinder 25 docks with the end 35a that stops spring 28.So the friction that stops the spring 28 and the first power transmission shaft 19a reduces, rotating cylinder 25 and stop spring 28 and shaft coupling cylinder 26 is the state that one is rotated simultaneously.Therefore, the rotation of rotating cylinder 25 is transmitted to conveying roller 27.

Conveying roller 27 is rotated, by joint cap 42 rotating driveshaft 9a.So spool 7a is rotated, thereby roll lift control line 5a, on draw front window cord 2a.

At this moment, on the first brake groups 43a, follow the rotation of driving shaft 9a, brake drum 44 is rotated.Then, detent ball 46 relatively moves to the arrow C direction from fastener 53, and moving in the kerve 49 down, moves in the kerve 51 through first return slot 50, and be rotating state in last kerve 51.

Therefore, by will pulling down to the sagging spherical chain 18 in indoor, front window cord 2a by on draw.

Carry out such front window cord 2a on during pulling process, rear side casement 2b can be by lifting.That is, to the rotation of arrow A direction, transmission gear 21b then rotates to arrow b direction with driven wheel 15.So as Figure 16 (a) and (b), by stopping under the state that spring 28 stoped 26 rotations of shaft coupling cylinder, according to the rotation of the rotating cylinder 25 of the second shaft coupling group 24b, shaft coupling ball 39 is mobile in removing groove 38 from engagement groove 37.

In this state, because shaft coupling ball 39 moves in the recess 32, so, can not end protruding 40 with the card of conveying roller 27 and combine.Therefore, the rotation of rotating cylinder 25 can not send conveying roller 27 to.

In addition, in shaft coupling ball 39 moves to recess 32 after, the end difference 34 of rotating cylinder 25 docks with the end 35a that stops spring 28, then rotating cylinder 25 and stop spring 28 and shaft coupling cylinder 26 is rotation integratedly.

On brake groups 43b, detent ball 46 combines with fastener 53, is in the state of the deadweight decline that stops rear side casement 2b.Therefore, when last pulling process front window cord 2a, rear side casement 2b can not carry out lifting.

[front window cord 2a on draw shut-down operation]

After moving desirable position on front window cord 2a, decontrol spherical chain 18, by the weight of front window cord 2a, driving shaft 9a just will be to the direction rotation of unrolling of lift control line 5a.

So on the first brake groups 43a, detent ball 46 moves to arrow D direction in last kerve 51, and combines with fastener 53.So, stoped the unnecessary rotation of driving shaft 9a, thereby stoped the deadweight of front window cord 2a to descend.

At this moment, follow the rotation of driving shaft 9a, conveying roller 27 is rotated, and follows the rotation of conveying roller 27, and rotating cylinder 25 is rotated.So shaft coupling ball 39 is as Figure 19～shown in Figure 21, moves to from engagement groove 37 and to remove groove 38.In addition, rotating cylinder 25 can rotate in the scope of notch 31 relatively with respect to transmission gear 21a, so the rotation of rotating cylinder 25 can not send transmission gear 21a to.

Therefore, because of driven wheel 15 can not be rotated,, do not draw rear side casement 2b on just not understanding so the second shaft coupling group 24b does not move yet.

[step-down operation of front window cord 2a]

When step-down operation front window cord 2a, will pull down slightly to the sagging spherical chain 18 in indoor.So, rotate the rotating cylinder 25 of the first shaft coupling group 24a by driven wheel 15 and transmission gear 21a, according to the rotation of rotating cylinder 25, conveying roller 27 is rotated.

According to the rotation of conveying roller 27, the brake drum 44 of the first brake groups 43a is rotated, and detent ball 46 moves to arrow C direction shown in Figure 180, moves to down in the kerve 49 through second return slot 54 from fastener 53.

In this state, decontrol spherical chain 18, detent ball 46 is can be relatively to the rotating state of arrow D direction in following kerve 49, and brake drum 44 is the state that can rotate.

So driving shaft 9a and spool 7a are the state that can rotate, by the weight of front window cord 2a, from the spool 7a lift control line 5a that unrolls, thereby front window cord 2a can drop to bottom line.

When such down maneuver begins, follow the rotation of driving shaft 9a, conveying roller 27 and rotating cylinder 25 are rotated, and the rotation of shaft coupling cylinder 26 is prevented from by stopping spring 28.

So detent ball 46 moves to removing groove 38 from engagement groove 37 in gathering sill 36 as Figure 19～shown in Figure 21, as shown in figure 21, moves to and removes in the groove 38.

Therefore, after rotating cylinder 25 rotated slightly, the rotation of conveying roller 27 can not send rotating cylinder 25 to.

When carrying out the step-down operation of such front window cord 2a, by operating spherical chain 18, and, rotate transmission gear 21b slightly by driven wheel 15.

, on the second shaft coupling group 24b, as Figure 15 and shown in Figure 16, shaft coupling ball 39 ends at the card that breaks away from conveying roller 27 on the direction of projection 40 and moving, so, can not rotate conveying roller 27.

Therefore, when operating spherical chain 18 for front window cord 2a is descended, rear side casement 2b does not move.

In addition, when front window cord 2a began down maneuver, rotating cylinder 25 rotated slightly, but because rotating cylinder 25 be undertaken by notch 31 and transmission gear 21a counterrotating, so the rotation of rotating cylinder 25 can not send transmission gear 21a to.Therefore, by step-down operation front window cord 2a, rear side casement 2b can not move.

[the decline shut-down operation of front window cord 2a]

When making the down maneuver Halfway Stopping of front window cord 2a, will pull down slightly to the sagging spherical chain 18 in indoor.So driven wheel 15 is rotated, the rotating cylinder 25 by the transmission gear 21a first shaft coupling group 24a is rotated.

According to the rotation of rotating cylinder 25, rotating cylinder 25 rotates relatively with respect to shaft coupling cylinder 26, and shaft coupling ball 39 moves in the engagement groove 37 from removing in the groove 38 as Figure 21, Figure 20 and shown in Figure 19.

So the card of conveying roller 27 ends projection 40 and combines with shaft coupling ball 39, has stoped the rotation of conveying roller 27.Consequently, stop the rotation of driving shaft 9a, stopped the rotation of brake drum 44, simultaneously, stopped the down maneuver of front window cord 2a.

From this state, be further rotated rotating cylinder 25, on the first brake groups 43a, detent ball 46, moves in the kerve 51 through first return slot 50 moving to the arrow C direction in the kerve 49 down.

Under this state, decontrol spherical chain 18, owing to the weight of front window cord 2a makes driving shaft 9a rotation, and make brake drum 44 rotations, detent ball 46 relatively moves to arrow D direction in last kerve 51.

So detent ball 46 is blocked by fastener 53, stoped relatively moving in addition, so stoped the rotation of driving shaft 9a.Therefore, the down maneuver of front window cord 2a is stopped.

When carrying out such decline shut-down operation, during with last pulling process front window cord 2a and the same during step-down operation front window cord 2a, by operating spherical chain 18, rear side casement 2b can not move yet.

[the last pulling process of rear side casement 2b]

For on draw rear side casement 2b, will pull down to the sagging spherical chain 18 in outside from pulley 17.So driven wheel 15 is followed this rotation to arrow B direction rotation shown in Figure 6,

transmission gear

21a, 21b rotate to arrow a direction.

Follow the rotation of transmission gear 21b, the rotating cylinder 25 of the second shaft coupling group 24b is to equidirectional rotation.Then, the second shaft coupling group 24b and brake groups 43b carry out identical action with the first shaft coupling group 24a and the first brake groups 43a of the last pulling process of following front window cord 2a except this direction of rotation.

So driving shaft 9b is rotated, thereby roll lift control line 5b, on draw rear side casement 2b.

Carry out such rear side casement 2b on during pulling process, can lifting front window cord 2a.That is, to the rotation of arrow B direction, transmission gear 21a then rotates to arrow b direction with driven wheel 15.So on the first shaft coupling group 24a, as Figure 15 and shown in Figure 16, by stopping under the state of rotation that spring 28 stoped shaft coupling cylinder 26, according to the rotation of rotating cylinder 25, shaft coupling ball 39 is mobile in removing groove 38 from engagement groove 37.

In this state, because shaft coupling ball 39 moves in the recess 32, so, can not end protruding 40 and combine with the card of conveying roller.Therefore, the rotation of rotating cylinder 25 can not send conveying roller 27 to.

In addition, in shaft coupling ball 39 moves to recess 32 after, the end difference 34 of rotating cylinder 25 docks with the end 35a that stops spring 28, then rotating cylinder 25 and stop spring 28 and shaft coupling cylinder 26 is one and rotates simultaneously.

On the first brake groups 43a, detent ball 46 combines with fastener 53, is in the state that stops front window cord 2a deadweight to descend.Therefore, when last pulling process rear side casement 2b, front window cord 2a does not move.

[step-down operation of rear side casement 2b]

When step-down operation rear side casement 2b, will pull down slightly to the sagging spherical chain 18 in outside.So, rotate the rotating cylinder 25 of the second shaft coupling group 24b by driven wheel 15 and transmission gear 21b, according to the rotation of rotating cylinder 25, conveying roller 27 is rotated.According to the rotation of conveying roller 27, the brake drum 44 of brake groups 43b is rotated, and brake drum 44 is rotated, thereby detent ball 46 moves to arrow C direction shown in Figure 180, moves to down in the kerve 49 through second return slot 54 from fastener 53.

Under this state, decontrol spherical chain 18, detent ball 46 is can be relatively to the rotating state of arrow D direction in following kerve 49, and brake drum 44 is the state that can rotate.

So driving shaft 9b and spool 7b are the state that can rotate, by the weight of rear side casement 2b, from the spool 7b lift control line 5b that unrolls, rear side casement 2b can drop to bottom line.

When such down maneuver begins, follow the rotation of driving shaft 9b, conveying roller 27 and the rotating cylinder 25 of the second shaft coupling group 24b are rotated, and the rotation of shaft coupling cylinder 26 is prevented from by stopping spring 28.

So shaft coupling ball 39 moves to removing groove 38 from engagement groove 37 in gathering sill 36 as Figure 19 and shown in Figure 20, as shown in figure 21, moves to and removes in the groove 38.

Therefore, after rotating cylinder 25 rotated slightly, the rotation of conveying roller 27 did not send rotating cylinder 25 to.

When carrying out the step-down operation of such rear side casement 2b, by operating spherical chain 18, and by driven wheel 15, rotate transmission gear 21a slightly, and on the second shaft coupling group 24a, shaft coupling ball 39 ends at the card that breaks away from conveying roller 27 on the direction of projection 40 and moving, so conveying roller 27 can not be rotated.

Therefore, when operating spherical chain 18 for rear side casement 2b is descended, front window cord 2a can not move.

In addition, when rear side casement 2b began down maneuver, the rotating cylinder 25 of the second shaft coupling group 24b was rotated slightly, but because rotating cylinder 25 is to carry out counterrotating by notch 31 with transmission gear 21b, so the rotation of rotating cylinder 25 can not send transmission gear 21b to.Therefore, by step-down operation rear side casement 2b, front window cord 2a does not move.

[the decline shut-down operation of rear side casement 2b]

When making the down maneuver Halfway Stopping of rear side casement 2b, will pull down slightly to the sagging spherical chain 18 in outside.So driven wheel 15 is rotated, the rotating cylinder 25 by the transmission gear 21b second shaft coupling group 24b is rotated.

Then, the first shaft coupling group 24a during with decline shut-down operation front window cord 2a is identical with the action of the first brake groups 43a, and the second shaft coupling group 24b and the second brake groups 43b move, thereby the down maneuver of rear side casement 2b is stopped.

When carrying out such decline shut-down operation, during with last pulling process rear side casement 2b and the same during step-down operation rear side casement 2b, by operating spherical chain 18, front window cord 2a does not move yet.

By aforesaid double rolling up curtain, can access following action effect.

(1) by operation, can carry out the descending operation of front window cord 2a and the descending operation of rear side casement 2b respectively independently to a ball shape chain 18.

(2) front window cord 2a and rear side casement 2b according to the once-through operation to spherical chain 18, can carry out step-down operation by deadweight, so can easily carry out its step-down operation.

(3) because can carry out the descending operation of front window cord 2a and rear side casement 2b, so can be easily and promptly carry out this descending operation by a ball shape chain 18.

(4) when carrying out the descending operation of front window cord 2a, rear side casement 2b can be by lifting; When carrying out the descending operation of rear side casement 2b, front window cord 2a can be by lifting.

(5) when last pulling process front window cord 2a, will be drop-down just passable to the sagging spherical chain 18 in indoor.In addition, on draw front window cord 2a to the desirable position, if decontrol spherical chain 18, the deadweight of front window cord 2a descends and is prevented from, sagging of front window cord 2a is held in desirable position.When step-down operation front window cord 2a, if, then can make front window cord 2a carry out step-down operation by its deadweight will after the sagging spherical chain 18 in indoor is drop-down slightly, promptly letting go.In addition, when stopping the step-down operation of front window cord 2a, will pull down just passable slightly to the sagging spherical chain 18 in indoor.Therefore, the descending operation of front window cord 2a can carry out to the sagging spherical chain 18 in indoor by operation, so, can be rapidly and easily carry out the descending operation of front window cord 2a.

(6) when last pulling process rear side casement 2b, pulling operation is just passable to the sagging spherical chain 18 in outside.In addition, rear side casement 2b is pulled to decontrols spherical chain 18 behind the desirable position, the deadweight of rear side casement 2b descends and is prevented from, and sagging of rear side casement 2b is held in desirable position.When step-down operation rear side casement 2b, if, then can make rear side casement 2b carry out step-down operation by its deadweight will after the sagging spherical chain 18 in outside is drop-down slightly, promptly letting go.In addition, when stopping the step-down operation of rear side casement 2b, will pull down just passable slightly to the sagging spherical chain 18 in outside.Therefore, the descending operation of rear side casement 2b can carry out to the sagging spherical chain 18 in outside by operation, so, can be rapidly and easily carry out the descending operation of rear side casement 2b.

(second example)

Figure 22 and Figure 23 are the schematic diagrames of second example.This example is that sagging support has rolling up curtain in the indoor, and sagging support has roller shutter in the outside, and can similarly use a ball shape chain to carry out the structure of descending operation respectively independently with first example.The component part identical with first example uses prosign to describe.

On an end of top case 1, be provided with operating means 61.In this operating means 61, with the mode support that can rotate as shown in figure 24 pulley 17 is arranged, on this pulley 17, hang spherical chain 18 is installed.

And according to the operation to spherical chain 18, pulley 17 is rotated, and according to the rotation of this pulley 17, driven wheel 15 is rotated.The rotation of driven wheel 15 is transmitted to

transmission gear

62a, 62b as shown in figure 25.

From the sagging rolling up curtain of top case 1, and be same formation to the sagging front window cord 2a in indoor in first example.And according to the rotation of transmission gear 62a, the first shaft coupling group 24a and the first brake groups 43a move, thereby can be same descending operations with first example.

Between base plate 63 that is installed on top case 1 other end and operating means 61, the spool 64 of roller shutter is arranged with the mode support that can rotate.And sagging from the outside of spool 64 have an anti-dazzling screen 68.

On an end of spool 64, be provided with the second shaft coupling group 24b.The second shaft coupling group 24b of this second shaft coupling group 24b and first example is same formation, moves according to the rotation of the 62b of transmission gear.

The conveying roller 27 of the second shaft coupling group 24b, by pipe cover 65 and spool 64 be one and rotate simultaneously.

On the other end of spool 64, be provided with known brake groups 66 and oil bumper 67.Brake groups 66 is carried out identical action with the brake groups 43b of first example.In addition, oil bumper 67 is that decrease speed with anti-dazzling screen 68 is limited in the member below the fixing speed.

Adopt the rolling up curtain and the roller shutter that constitute like this, identical with first example, to the sagging spherical chain 18 in indoor, can carry out the descending operation of front window cord 2a by operation.

In addition, by operation to the sagging spherical chain 18 in outside, anti-dazzling screen 68 that can the descending operation roller shutter.

Therefore, except the rear side casement 2b of first example changes into anti-dazzling screen 68 this point of roller shutter, can access the action effect identical with first example.

(the 3rd example)

Figure 26 is the schematic diagram of the 3rd example.This example is that expression is with respect to first and second shaft coupling group 24a of first and second example, other examples of 24b.Formation beyond the shaft coupling group is identical with first or second example.

The 3rd power transmission shaft 71 is identical with above-mentioned example, is subjected to the support of top case in the mode that can not rotate by lid.Drive rotating cylinder 72, prop up in the mode that can rotate and can not move in the axial direction and be held in the 3rd power transmission shaft 71, identical with above-mentioned example, according to operation, be rotated by driven wheel and transmission gear 89 as shown in figure 28 to spherical chain.

Transmission gear 89 is subjected to the support of the 3rd power transmission shaft 71 in the mode that can rotate, and forms joint portion 90 in respect to the scope at 60 ° at center.The joint portion 72a of driving rotating cylinder 72 as shown in figure 26 is positioned on the rotary motion trace identical with the joint portion 90 of transmission gear 89, is formed in the scope with respect to 60 ° at center.

Therefore, transmission gear 89 and drive rotating cylinder 72, identical with first example, between transmission gear 89 and driven wheel 72, leave the idle running field of predetermined angular, so that being one after butt joint mutually,

joint portion

90,72a rotate simultaneously.

With driving rotating cylinder 72 adjacency, shaft coupling cylinder 73 is subjected to the support of the 3rd power transmission shaft 71 in the mode that can rotate and can move in the axial direction.Shaft coupling cylinder 73 is formed with the gathering sill 74 that is the point symmetry shape with respect to the center as shown in figure 28 on its outer peripheral face, this gathering sill 74 forms, and engagement groove 75 and releasing groove 76 are to axial dipole field.

Drive between rotating cylinder 72 and the shaft coupling cylinder 73 and be provided with sliding spring 77.Shaft coupling cylinder 73 by will driving the active force of rotating cylinder 72 as the sliding spring 77 of fulcrum, is breaking away from the direction that drives rotating cylinder 72, i.e. as shown in figure 26 arrow E direction reinforcing.

With shaft coupling cylinder 73 adjacency, on the 3rd power transmission shaft 71,, on the outer peripheral face of this axle collar 78, be wound with and stop spring 79 with the chimeric axle collar 78 that is equipped with of the mode that can not rotate.The both ends 80a, the 80b that stop spring 79 diametrically by bending, are extruded with the joint portion 73a of shaft coupling cylinder 73 as shown in figure 27 between its both

ends

80a, 80b.

Then, joint portion 73a docks with the end 80a that stops spring 79, any one of 80b, and the friction that then stops the spring 79 and the axle collar 78 increases, and can stop the rotation of shaft coupling cylinder 73.

Around shaft coupling cylinder 73, supported rotating cylinder 81 in the mode that can rotate and can move in the axial direction.On rotating cylinder 81, be formed with to drive rotating cylinder 72 side openings in conjunction with recess 82, this in conjunction be combined with on the recess 82 be formed at drive rotating cylinder 72 in conjunction with protuberance 83.Therefore, rotating cylinder 81 is integratedly rotation simultaneously with driving rotating cylinder 72.

On the inner peripheral surface of rotating cylinder 81, be formed with the hemispheric shaft coupling protuberance 84 that combines with the gathering sill 74 of shaft coupling cylinder 73.Then, rotating cylinder 81 is rotated, and shaft coupling protuberance 84 is introduced into gathering sill 74, thereby rotating cylinder 81 can move in the axial direction.

On the inner peripheral surface of rotating cylinder 81, be formed with and the end 80a that stops spring 79, joint portion 85 that 80b docks.Then, joint portion 85 combines with any one of

end

80a, 80b, and the friction that then stops the spring 79 and the axle collar 78 reduces, and stops spring 79 and shaft coupling cylinder 73 and is integratedly rotation simultaneously with rotating cylinder 81.

On the first end of the 3rd power transmission shaft 71, supported conveying roller 86 in the mode that can rotate and can not move in the axial direction.The base end side end face of conveying roller 86, promptly with rotating cylinder 81 opposing end faces on, be formed with a pair of jagged driven latch 87.

The tip side end face of rotating cylinder 81, promptly with conveying roller 86 opposing end faces on, be formed with a pair of jagged driving latch 88.Then, rotating cylinder 81 is rotated, and moves to conveying roller 86 sides, then drives latch 88 and combines with driven latch 87, rotates simultaneously thereby make rotating cylinder 81 and conveying roller 86 be one.

In addition, as Figure 29, shown in Figure 30, rotating cylinder 81 moves to and drives rotating cylinder 72 sides, then removed the combination of driver card tooth 88 and driven latch 87, thereby conveying roller 86 is the state that can rotate freely.

Conveying roller 86 be bonded into, be one with the driving shaft identical and rotate simultaneously with driving shaft 9a, the 9b of for example first example.In addition, driving shaft is controlled its spinning movement by the brake groups identical with first example.

The double rolling up curtain that possesses the shaft coupling group of such formation by the operation to spherical chain, drives rotating cylinder 72 and draw the direction rotation on casement, and then by stopping under the state that spring 79 stoped 73 rotations of shaft coupling cylinder, rotating cylinder 81 is rotated.

Then, shaft coupling protuberance 84 is inducted in the engagement groove 75, rotating cylinder 81 moves to conveying roller 86, drives latch 88 and combines with driven latch 87.

So the rotation that drives rotating cylinder 72 sends conveying roller 86 to by rotating cylinder 81, according to the rotation of conveying roller 86, casement by on draw.

At this moment, after driving latch 88 and driven latch 87 combine, dock with the end 80a that stops spring 79 joint portion of rotating cylinder 81, so, shaft coupling cylinder 73 and stop spring 19 and driving rotating cylinder 72 is one and rotates simultaneously.

After moving desirable position on the casement to, when decontroling spherical chain,, stop the deadweight of casement to descend by the action of brake groups.

From sagging state that is held in desirable position of casement, omit the spherical chain of microoperation to the direction identical with last pulling process, if be the state that permission is conducted oneself with dignity and descended by brake groups,, rotating cylinder 81 is rotated to the casement descent direction by driving shaft and conveying roller 86.

So the state backspin that is prevented from the rotation of shaft coupling cylinder 73 tube 81 of walking around is rotated, and moves to driving rotating cylinder 72 sides according to this rotation rotating cylinder 81.So the combination of the driving latch 88 of rotating cylinder 81 and the driven latch 87 of conveying roller 86 is disengaged, conveying roller 86 is the state that can rotate freely.Therefore, casement descends by deadweight.

In order to stop the down maneuver of casement, further spherical chain is drawn to equidirectional slightly, drive rotating cylinder 72 and be rotated, thereby rotating cylinder 81 is the state that combines with conveying roller 86.Then, identical with first example, by the action of brake groups, stop the deadweight of casement to descend.

By such action,, can access the action effect identical with first example by the rolling up curtain of the shaft coupling group that possesses this example.

In addition, in this example, because a pair of joint portion 85 of rotating cylinder 81 is combined with a pair of gathering sill 74 of shaft coupling cylinder 73, so, rotating cylinder 81 is successfully moved in the axial direction.

(the 4th example)

Figure 31 and Figure 32 are the schematic diagrames of the 4th example.This example is, with the anti-dazzling screen of the roller shutter of the second example known roller shutter as the auto reeling type of rolling by the active force that is arranged at the torsion spring in the spool.And Figure 31 and Figure 32 are the schematic diagrames of its operating means of expression.

In operating means 101, supported pulley 17 in the mode that can rotate, on this pulley 17, hang spherical chain 18 is installed.

Then, according to the operation rotating pulley 17 to spherical chain 18, according to the rotation of this pulley 17, driven wheel 15 is rotated.The rotation of driven wheel 15 is transmitted to transmission gear 62a.

From the sagging rolling up curtain of top case 1, in first example, and be same formation to the sagging front window cord 2a in indoor.And according to the rotation of transmission gear 62a, the first shaft coupling group and first brake groups are moved, thereby can carry out the descending operation identical with first example.

The rotation of driven wheel 15 sends transmission gear 62b to by counter gear 102.Therefore, the direction of rotation with respect to the transmission gear 62b of the rotation of driven wheel 15 is in the other direction with second example.

According to the rotation of transmission gear 62b, the second shaft coupling group and second brake groups that are arranged in the Curtain roller are moved, and carry out the descending operation of anti-dazzling screen.

This second shaft coupling group and second brake groups are carried out the action identical with second example with reciprocal rotation.

According to operation, the operation of rolling up curtain and roller shutter is described this operating means 101.

By operating spherical chain 18, driven wheel 15 is to the rotation of arrow C direction, and transmission gear 62a just rotates to arrow H direction.So by the action of the first shaft coupling group, rolling up curtain is pulled up.

At this moment, transmission gear 62b rotates to the arrow E direction, and passes through the action of the second shaft coupling group, and the anti-dazzling screen of roller shutter can't carry out lifting.

Driven wheel 15 is after the rotation of arrow C direction, and the spherical chain 18 of shut-down operation by the action of first brake groups, stops the deadweight of rolling up curtain to descend.

From this state, operate spherical chain 18, make driven wheel 15 slightly to the rotation of arrow C direction, the action of first brake groups is disengaged, and rolling up curtain is done deadweight and is descended.

On the other hand, by operating spherical chain 18, driven wheel 15 is to the rotation of arrow F direction, and transmission gear 62b just rotates to the arrow G direction.So by the action of the second shaft coupling group, the anti-dazzling screen of roller shutter descends.

At this moment, transmission gear 62a rotates to arrow D direction, and passes through the action of the first shaft coupling group, and rolling up curtain can't carry out lifting.

Driven wheel 15 after arrow F direction rotation, the spherical chain 18 of shut-down operation, by the action of second brake groups, the anti-dazzling screen of roller shutter by sagging support to desirable position.

From this state, operate spherical chain 18, make driven wheel 15 slightly to the rotation of arrow F direction, the action of second brake groups is disengaged, and the anti-dazzling screen of roller shutter is automatically rolled by the active force of torsion spring.

Rolling up curtain of Gou Chenging and roller shutter are identical with first example like this, to the sagging spherical chain 18 in indoor, can carry out the descending operation of rolling up curtain by operation.

In addition, by operation to the sagging spherical chain 18 in outside, anti-dazzling screen that can the descending operation roller shutter.

Therefore, the formation this point of on the roller shutter of second example changes into anti-dazzling screen automatically, drawing, can access the action effect identical with second example.

In addition, above-mentioned example also can change to as follows.It can only be 1 also that the card of transmission gear 27 ends projection 40.In addition, the protuberance 23 of round plate 22 has at least 1 to get final product.In addition, first and second brake groups 43a, 43b if can connect the position of driving

shaft

9a, 9b, also can be arranged at the optional position in the top case 1.In addition, replace rolling up curtain and roller shutter, also can be used for the lifting gear of soft curtain of bouffancy and horizontal shutter.In addition, the gathering sill 36 of shaft coupling cylinder 26 also can be only be provided with a side of engagement groove 37 and removes groove 38.

In sum, the invention provides a kind of lifting gear, it can operate the control line difference double-deck insolation masking material of descending operation independently with one, simultaneously, can be by once-through operation to the operation control line, make the last pulling process of each insolation masking material or any operation auto-action in the step-down operation, thus the masking material of descending operation insolation easily.

Industrial applicability

The present invention is the lowering or hoisting gear that can be used in the solar radiation shielding apparatus such as horizontal shutter, rolling up curtain, bouffancy soft curtain, roller shutter.

Claims

1. insolation masking material lifting gear, by first and second insolation masking material of the sagging support of top case, the transmission gear rotation that is come rotating pulley to make to be meshed with driven wheel by sagging one annular operation of above-mentioned top case control line by operation also makes first and second descending operation portion action, thereby can above-mentioned first and second insolation masking material of independent-lifting

The state that above-mentioned first and second insolation masking material deadweight descends is adjusted by first and second brake groups, it is characterized in that,

Above-mentioned insolation masking material lifting gear is provided with the first shaft coupling group and the second shaft coupling group; The described first shaft coupling group be by, send the first shaft coupling portion formation of above-mentioned first conveying roller to based on first rotating cylinder that the operation of aforesaid operations control line is rotated, first conveying roller that drives the above-mentioned first descending operation portion and rotation that will above-mentioned first rotating cylinder; And, by of the operation of aforesaid operations control line to a side, make the action of the above-mentioned first descending operation portion and first brake groups, thereby can be under can not the state of the above-mentioned second insolation masking material of lifting, the down maneuver that goes up that pulling is done and undertaken by deadweight of the above-mentioned first insolation masking material and deadweight descended prevents that action from selecting;

The described second shaft coupling group be by, send the second shaft coupling portion formation of above-mentioned second conveying roller to based on second rotating cylinder that the operation of aforesaid operations control line is rotated, second conveying roller that drives the above-mentioned second descending operation portion and rotation that will above-mentioned second rotating cylinder; And, by of the operation of aforesaid operations control line to the opposing party, make the action of the above-mentioned second descending operation portion and second brake groups, thereby can be under can not the state of the above-mentioned first insolation masking material of lifting, the down maneuver that goes up that pulling is done and undertaken by deadweight of the above-mentioned second insolation masking material and deadweight descended prevents that action from selecting;

Described first and second shaft coupling portion be by, the shaft coupling cylinder of being supported by power transmission shaft in the mode that can rotate, gathering sill in above-mentioned shaft coupling cylinder outer peripheral face formation, the shaft coupling ball that moves along above-mentioned gathering sill, sliding spring and stop spring and constitute, wherein, this sliding spring is to the above-mentioned first or second rotating cylinder reinforcing, this stops that spring stops the revolving force of the above-mentioned shaft coupling cylinder of reason effect and the rotation of this shaft coupling cylinder of producing, simultaneously, based on by above-mentioned first or the revolving force of the second rotating cylinder effect, make this first or second rotating cylinder and shaft coupling cylinder be the one rotation;

Described gathering sill be by, can with above-mentioned first or the revolving force of second rotating cylinder send the engagement groove of first or second conveying roller to by the shaft coupling ball and first or second conveying roller can be constituted with respect to the releasing groove that first or second rotating cylinder rotate freely;

The described first shaft coupling portion, will be based on the aforesaid operations control line to side operation and the revolving force of first rotating cylinder that produces sends above-mentioned first conveying roller to, and when the deadweight decline because of the above-mentioned first insolation masking material is rotated above-mentioned first conveying roller, this conveying roller and first rotating cylinder are disconnected, and rotate freely;

The described second shaft coupling portion, will be based on the aforesaid operations control line to the opposing party operation and the revolving force of second rotating cylinder that produces sends above-mentioned second conveying roller to, and when the deadweight decline because of the above-mentioned second insolation masking material is rotated above-mentioned second conveying roller, this conveying roller and second rotating cylinder are disconnected, and rotate freely.

2. insolation masking material lifting gear, by first and second insolation masking material of the sagging support of top case, the transmission gear rotation that is come rotating pulley to make to be meshed with driven wheel by sagging one annular operation of above-mentioned top case control line by operation also makes first and second descending operation portion action, thereby can above-mentioned first and second insolation masking material of independent-lifting;

The state that above-mentioned first insolation masking material deadweight descends is adjusted by first brake groups;

The above-mentioned second insolation masking material is gone up the state of pulling work automatically and is adjusted by second brake groups;

It is characterized in that,

Above-mentioned insolation masking material lifting gear is provided with the first shaft coupling group and the second shaft coupling group;

The described first shaft coupling group be by, send the first shaft coupling portion formation of above-mentioned first conveying roller to based on first rotating cylinder that the operation of aforesaid operations control line is rotated, first conveying roller that drives the above-mentioned first descending operation portion and rotation that will above-mentioned first rotating cylinder; And, by of the operation of aforesaid operations control line to a side, make the action of the above-mentioned first descending operation portion and first brake groups, thereby can be under can not the state of the above-mentioned second insolation masking material of lifting, the down maneuver that goes up that pulling is done and undertaken by deadweight of the above-mentioned first insolation masking material and deadweight descended prevents that action from selecting;

The described second shaft coupling group be by, send the second shaft coupling portion formation of above-mentioned second conveying roller to based on second rotating cylinder that the operation of aforesaid operations control line is rotated, second conveying roller that drives the above-mentioned second descending operation portion and rotation that will above-mentioned second rotating cylinder; And, by of the operation of aforesaid operations control line to the opposing party, make the action of the above-mentioned second descending operation portion and second brake groups, thereby can be under can not the state of the above-mentioned first insolation masking material of lifting, to the down maneuver of the above-mentioned second insolation masking material and go up automatically that pulling is done and automatically on draw and prevent that action from selecting;

The described second shaft coupling portion, will be based on the aforesaid operations control line to the opposing party operation and the revolving force of second rotating cylinder that produces sends above-mentioned second conveying roller to, and because of the above-mentioned second insolation masking material automatically on pulling when above-mentioned second conveying roller is rotated, this conveying roller and second rotating cylinder are disconnected, and rotate freely.

3. insolation masking material lifting gear, by first and second insolation masking material of the sagging support of top case, the transmission gear rotation that is come rotating pulley to make to be meshed with driven wheel by sagging one annular operation of above-mentioned top case control line by operation also makes first and second descending operation portion action, thereby can above-mentioned first and second insolation masking material of independent-lifting

Described first and second shaft coupling portion is by, the shaft coupling cylinder of being supported by power transmission shaft in the mode that can rotate, at the gathering sill that above-mentioned shaft coupling cylinder outer peripheral face forms, and the shaft coupling protuberance that combines with above-mentioned gathering sill, sliding spring and stop spring and constitute; Wherein, this sliding spring is to the above-mentioned first or second rotating cylinder reinforcing, this stops that spring stops the revolving force of the above-mentioned shaft coupling cylinder of reason effect and the rotation of this shaft coupling cylinder of producing, simultaneously, based on by above-mentioned first or the revolving force of the second conveying roller effect, make this first or second rotating cylinder and shaft coupling cylinder be the one rotation;

Described gathering sill be by, make first or second conveying roller move to the engagement groove of the position that combines with above-mentioned first or second rotating cylinder and the releasing groove that first or second conveying roller can be rotated freely with respect to above-mentioned first or second rotating cylinder constitutes;

4. insolation masking material lifting gear, by first and second insolation masking material of the sagging support of top case, the transmission gear rotation that is come rotating pulley to make to be meshed with driven wheel by sagging one annular operation of above-mentioned top case control line by operation also makes first and second descending operation portion action, thereby can above-mentioned first and second insolation masking material of independent-lifting

It is characterized in that,

5. as any described insolation masking material lifting gear in the claim 1～4, it is characterized in that, based on the operation of aforesaid operations control line is sent to torque transmission gear and this first and second rotating cylinder of above-mentioned first and second rotating cylinder with revolving force, possesses the idle running field that is only limited in the predetermined angular, does not transmit torque mutually.