TW201400062A - Curtain with lifting and locking functions - Google Patents

Abstract

A curtain with lifting and locking functions includes a fixing base, a curtain mechanism, a control mechanism, and a locking and linking mechanism. The locking and linking mechanism includes a gear unit operatively connected to a furling rod of the curtain mechanism and a control rod of the control mechanism, an elastic member for holding the gear unit in a locking position, and a locking unit for preventing the gear unit from transmitting power when the gear unit is in the locking position, in which the control rod is capable of overcoming the elastic force of the elastic member so as to allow the gear unit to convert to an unlocking position. In a normal state, the gear unit is in the locking position and prevents the furling rod from rotating. When the control rod is pulled down for allowing the gear unit to convert to the unlocking position, the furling rod of the curtain mechanism can be driven to rotate.

Description

Curtain with lifting and locking function

The invention relates to a curtain, in particular to a curtain with a lifting and locking function for manually controlling the curtain lifting.

Generally, there are many types and forms of curtains. Figures 1 and 2 disclose a cordless curtain 1 which comprises a fixing seat 11 fixedly mounted at the upper edge of the window, and a hanging seat 11 mounted thereon. a lower curtain mechanism 12, a control rod 10, a linkage mechanism 13 for electrically connecting the curtain mechanism 12 and the control rod 10, and a wall fixedly mounted on the lower edge of the window and preventing the control rod 10 rotating anti-rotation seat 14.

The curtain mechanism 12 has a curtain 121, a take-up bar 122 rotatably mounted below the fixed seat 11, a roll 123 with a top end wound on the take-up bar 122, and a plurality of connected rolls The sheet 123 and the connecting rod 124 of the curtain 121. The linkage mechanism 13 includes a first gear 131 coupled to the control rod 10, and a second gear 132 coupled with the winding rod 122 and engaged with the first gear 131, and the control rod The anti-rotation section 101 has a non-circular shape and can be engaged in a slot 141 of one of the anti-rotation seats 14.

When the lever 10 is driven to rotate in a reeling direction, the retracting rod 122 can be driven to rotate by the power of the first gear 131 and the second gear 132, and the reel 123 and the curtain are driven. The curtain 121 is retracted, and when the length of the vertical position is appropriate, the anti-rotation section 101 of the control rod 10 is inserted into the slot 141 of the anti-rotation seat 14 to prevent the control rod 10 from rotating while maintaining The vertical length of the curtain 121. When the curtain 121 is to be placed, the anti-rotation section 101 of the lever 10 is moved away from the slot 141 of the anti-rotation seat 14, and the curtain 121 can be lowered by its own weight.

The conventional curtain 1 utilizes the cooperation of the anti-rotation seat 14 and the control rod 10, although the vertical length of the curtain 121 can be positioned, but in use, since the anti-rotation seat 14 is adjacent to the wall, The anti-rotation section 101 of the control rod 10 is locked in the slot 141 of the anti-rotation seat 14, or the anti-rotation section 101 of the control rod 10 is taken out by the card slot 141, which is inconvenient in operation. In addition, since the retracted curtain mechanism 12 itself has a weight, and the anti-rotation section 101 of the lever 10 is disengaged from the slot 141 of the anti-rotation seat 14, the clamping force disappears, so the two are separated. In an instant, the curtain mechanism 12 will hang down quickly, causing inconvenience in adjustment and use.

It is an object of the present invention to provide a curtain having a lifting and lowering function that is convenient to operate and use.

The curtain of the present invention comprises: a fixing seat, a curtain mechanism installed under the fixing seat, a steering mechanism, and a locking linkage mechanism for urging the curtain mechanism and the steering mechanism. The curtain mechanism includes a take-up lever rotatably mounted on the fixed seat, and a curtain unit that is taken up and lowered by the take-up lever, and the steering mechanism includes a control rod, the locking mechanism The linkage mechanism includes a gear unit that is coupled to the lever and the take-up lever, an elastic member that holds the gear unit in a locked position, and a transmission preventing the gear unit from being transmitted when the gear unit is in the locked position a locking unit for power, which can overcome the elasticity of the elastic member The gear unit is switched from the locked position to an un-locked position.

The beneficial effect of the invention is that the gear unit can be kept in the locked position by the cooperation between the elastic member and the locking unit, and the gear unit is naturally driven while driving the control rod. Switching to the non-locked position, thereby achieving the purpose of operation and ease of use.

The foregoing and other technical features, features and advantages of the present invention will be apparent from

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 3, 4 and 5, a first preferred embodiment of the window covering of the present invention comprises: a fixing base 2 mountable on the wall and located at the upper edge of the window, and a curtain mechanism mounted below the fixing base 2. 3. A steering mechanism 5, and a locking linkage mechanism 4 that mechanically engages the curtain mechanism 3 and the steering mechanism 5.

The fixing base 2 includes a horizontally extending upper beam 20, a first hanging plate 21 and a second hanging plate 22 which are vertically spaced apart from each other on the opposite side of the upper beam 20, and a second hanging plate 22 A gear housing 23 on the inside of the hanging plate 21. The first hanging plate 21 has a fixing insertion portion 211 fixed to the upper beam 21, and a hanging portion 212 extending downward from the fixing insertion portion 211. The hanging portion 212 has a horizontal and inward direction. Extended wall 213.

The gear housing 23 is formed by butting two housings and has one Defining a base wall 230 of a gear chamber 231, the base wall 230 has a horizontal bottom wall portion 232, and a piece of the hanging portion 212 of the first hanging plate 21 abuts against the outer wall portion 233, and An inner wall portion 234 in which the outer wall portions 233 are spaced apart from each other, and a surrounding wall portion 235 connected between the outer wall portion 233 and the inner wall portion 234. The bottom wall portion 232 has a straight through hole 236 having an annular shoulder surface 237 therein, and the inner wall portion 234 has a horizontal through hole 238 disposed perpendicularly to the straight through hole 236.

The curtain mechanism 3 of the present embodiment includes a take-up lever 31 rotatably mounted between the second hanging plate 22 of the fixing base 2 and the gear housing 23, and a retracting rod 31 is taken up by the retracting rod 31. And a curtain unit 32, the curtain unit 32 has a curtain 321 with a top edge mounted on the upper beam 20 of the fixing base 2, and a winding piece 322 with a top edge mounted on the winding rod 31. And a plurality of connecting rods 323 connecting the curtain 321 and the winding piece 322, the winding piece 322 can be driven to roll up by rolling the winding rod 31, and the curtain can be driven by the connection of the connecting rods 323. Curtain 321 reel. Since the winding piece 322 and the connecting rods 323 are used to drive the curtain 321 to be retracted and lowered as known techniques, it will not be described. In addition, in this embodiment, the curtain 321 can also be directly wound on the take-up reel 31.

The locking mechanism 4 is disposed in the gear chamber 231 of the gear housing 23 and includes a gear unit 42, an elastic member 43 for holding the gear unit 42 in a locked position, and a gear The unit 42 is located at the locking position of the locking unit 44 that prevents the gear unit 42 from rotating.

The gear unit 42 has a first gear 421 rotatably inserted in a straight through hole 236 of the gear housing 23, and a rotatably inserted a second gear 422 in the horizontal through hole 238 of the gear housing 23, the first gear 421 has a plurality of first latches 423 located in the gear chamber 231 of the gear housing 23 and equiangularly disposed, and a protrusion The second gear 422 has a plurality of second latches 425 that mesh with the first latches 423 of the first gear 421, and a reel The sleeve 31 is engaged with the sleeve portion 426.

The elastic member 43 is supported between the shoulder surface 237 of the straight through hole 236 of the gear housing 23 and the first gear 421, and the first gear 421 is kept upward. The locking unit 44 has a receiving hole 441 for inserting the wall 213 of the first hanging plate 21, and two locking grooves facing downward and located above the first engaging teeth 423 of the first gear 421. 442, the locking unit 44 can also have a locking groove 442.

Referring to Figures 4, 6, and 7, in the present embodiment, the operating mechanism 5 includes a lever 55 coupled to the first gear 421 by a latch 54 and a reciprocating movement along the length of the lever 55. The manipulation unit 50 can drive the control rod 55 to rotate in a winding direction, and the control rod 55 has a plurality of spiral guide grooves 551 disposed along the length direction. The control unit 50 of the preferred embodiment has a grip holder 51 surrounding the lever 55 and having an accommodation space 510, a linkage seat 52 mounted in the accommodation space 510 of the grip holder 51, and A linkage 53 mounted on the linkage 52. The cradle 51 is formed by butt-joining the two housings, and has a grip ring wall 511 defining the accommodating space 510, and a plurality of equiangular arrangements and the accommodating ring wall 511 The interlocking ribs 512 protruding in the space 510 are located in the upper half of the accommodating space 510 In this embodiment, the accommodating space 510 has a linking area 513 corresponding to the interlocking rib 512 and located in the upper half, and a non-linked area 514 located below.

The carrier 52 is also connected by two housings and can move up and down in the accommodating space 510 of the cradle 51. The ring 52 has an annular outer ring wall 521 and one of which has a plurality of linkages. The inner ring wall 523 of the bead groove 522 of the piece 53 is mounted, and a plurality of interlocking projections 524 which are disposed at equal angles and project from the outer ring wall 521 toward the radially outer end. The linkage member 53 is in the form of a steel ball and can be respectively inserted into the spiral guide groove 551 of the control rod 55.

Referring to Figures 3, 5 and 8, when the gear unit 42 of the present embodiment is in the locked position shown in Figure 5, the first gear 421 of the gear unit 42 is moved up by the top support of the elastic member 43, Two of the first latches 423 of the first gear 421 are respectively latched in the locking recesses 442 of the locking unit 44. At this time, the first gear 421 meshes with the second gear 422. However, since the first gear 421 is not rotated by the latch of the locking unit 44, the first gear 421 and the second gear 422 of the gear unit 42 cannot rotate, that is, when the gear unit 42 is located at When the position is locked, the winding lever 31 of the curtain mechanism 3 can be prevented from rotating, and the vertical length of the curtain unit 32 of the curtain mechanism 3 can be maintained.

Referring to Figures 3, 7, 9, and 10, when the curtain of the present embodiment is to be retracted, the operator pulls down the manipulation unit 50 of the manipulation mechanism 5, and at this time, the gripper 51 of the manipulation unit 50 moves down first. Abutting against the linkage 52, and then driving the linkage 52 and the linkage 53 down and against the lever 55 to give the lever 55 a downward force, because The lever 55 is coupled with the first gear 421. Therefore, the force of the spurt moves the first gear 421 against the elastic force of the elastic member 43 , that is, the first gear 421 and the locking unit are released. The click relationship between 44 causes the gear unit 42 to be shifted from the locked position of FIG. 5 to the non-locked position of FIG.

When the push-pull holder 51 is pulled down, the interlocking seat 52 is a non-coupling area 514 corresponding to the accommodating space 510 indicated by the imaginary line of FIG. 7, and the interlocking of the accommodating space 510 indicated by the solid line is transferred. In the region 513, since the portion of the gripping seat 51 corresponding to the interlocking region 513 of the accommodating space 510 has the linking ribs 512, and the linking ribs 512 respectively correspond to the interlocking projections 524 of the connecting bracket 52, In the case that the interlocking protrusion 512 and the interlocking protrusion 524 of the connecting seat 52 respectively abut, the force of pushing down the holding base 51 also causes the control rod 55 to rotate, and the curtain is driven to be driven. The take-up lever 31 of the mechanism 3 rotates, and the purpose of driving the curtain unit 32 is carried out.

When the control unit 50 is pushed to the position of the control rod 55 adjacent to the bottom edge, the control unit 50 can be pushed upward. At this time, the control rod 55 and the first gear 421 are supported by the elastic member 43. Moving up, and causing the first gear 421 to be locked with the locking unit 44 again to maintain the vertical length of the curtain unit 32, and in the process of pushing up the steering unit 50, the connecting seat 52 is opposite The grip holder 51 is moved down, and the non-coupling region 514 of the pusher 51 should be gripped, that is, the linkage 52 is switched from the solid line position shown in FIG. 7 to the position of the imaginary line, and the grip is pushed up. The force of the seat 51 is not transmitted to the linkage 52, nor does it drive the lever 55 to rotate. If the volume is high The degree is not enough, and the user can pull down the gripper 51 of the manipulation unit 50 again to repeat the foregoing operation steps until the vertical length of the curtain unit 32 is appropriate.

When the curtain unit 32 is to be placed in the embodiment, the control lever 55 can be manually held and pulled down, so that the first gear 421 can be moved down, and the gear unit 42 can be switched to the non-locked position, in the absence of the card. In the case of a crucible, the curtain unit 32 can be naturally placed by its own weight to achieve the purpose of dropping the curtain unit 32. When the curtain unit 32 is lowered, the user can slightly hold the grip 51 of the steering unit 50, that is, the resistance when the lever 55 is rotated to slow down the speed at which the curtain unit 32 is lowered.

Referring to Figures 11 and 12, the second preferred embodiment of the present invention has a configuration similar to that of the first preferred embodiment, except that the locking unit 44 of the locking linkage mechanism 4 is disposed in the gear unit. In the present embodiment, the locking unit 44 has a latching block 443 formed on the top surface of the first gear 421, and a latching lever 444 protruding axially from the second gear 422, the latching lever The 444 has a plurality of equal angled recessed locking recesses 442. When the gear unit 42 is in the locked position, it is received by the elastic member 43 , and the latching block 443 located on the top surface of the first gear 421 is engaged with the locking recess of the latching lever 444 . In one of the slots 442, at this time, the second gear 422 cannot be rotated, and the winding lever 31 that is engaged with the second gear 422 cannot be rotated. Therefore, the embodiment changes the configuration of the locking unit 44, and can also achieve the intended purpose.

Referring to Figures 13 and 14, the construction of the third preferred embodiment of the curtain of the present invention is similar to that of the first preferred embodiment, except that the locking unit 44 is The second gear 422 is formed on the second gear 422 of the gear unit 42. In addition to the second latches 425, the second gear 422 has a plurality of connected bases of the adjacent second latches 425. The inner surface 427, and the locking unit 44 has a plurality of locking grooves 442 recessed from the inner surface 427 toward the center. The number of the locking grooves 442 is smaller than the number of the inner surfaces 427. When the gear unit 42 is in the locking position, one of the first latches 423 of the first gear 421 can be engaged in the locking recesses 442 of the locking unit 44. In one case, the second gear 422 is locked and cannot be rotated.

As can be seen from the above description, the first gear 421 and the control rod 55 are coupled in a coordinated manner, and the gear unit 42 is often held in the locked position by the cooperation of the elastic member 43 and the locking unit 44. When the lever 55 is pulled down, the design that naturally shifts the gear unit 42 to the non-locked position is not only structurally innovative, but the gear unit 42 can be automatically activated as long as the pull-down force of the lever 55 is relaxed during operation. Reverting to the locked position to prevent the curtain unit 32 from falling quickly by its own weight, the present invention is indeed a curtain that is convenient to use and operate.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2‧‧‧ Fixed seat

20‧‧‧上梁

21‧‧‧First hanging plate

211‧‧‧Fixed plug

212‧‧‧ hanging parts

213‧‧‧ inserted wall

22‧‧‧Second hanging plate

23‧‧‧ Gear housing

230‧‧‧ base wall

231‧‧‧ Gear chamber

232‧‧‧ bottom wall

233‧‧‧Outer wall

234‧‧‧Inside wall

235‧‧ ‧ wall section

236‧‧‧straight perforation

237‧‧‧ Shoulder

238‧‧‧ horizontal perforation

3‧‧‧ Curtain mechanism

31‧‧‧Retraction

32‧‧‧ Curtain unit

321‧‧‧ curtain

322‧‧‧Volume

323‧‧‧ Connecting rod

4‧‧‧Kanding linkage mechanism

42‧‧‧ Gear unit

421‧‧‧First gear

422‧‧‧second gear

423‧‧‧first card teeth

424‧‧‧ linkage department

425‧‧‧second card teeth

426‧‧‧ Sockets

427‧‧‧ inner surface

43‧‧‧Flexible parts

44‧‧‧ card unit

441‧‧‧ jack

442‧‧‧King groove

443‧‧‧ card block

444‧‧‧Car mast

5‧‧‧Control mechanism

50‧‧‧Control unit

51‧‧‧Clip seat

510‧‧‧ accommodating space

511‧‧‧ grip ring wall

512‧‧‧ linkage ribs

513‧‧‧ linkage area

514‧‧‧ Non-linked area

52‧‧‧ linkage base

521‧‧‧ outer ring wall

522‧‧ ‧ beads

523‧‧‧ Inner Ring Wall

524‧‧‧ linkage block

53‧‧‧ linkages

54‧‧‧ latch

55‧‧‧Control lever

551‧‧‧Spiral guide groove

Figure 1 is a side elevational view of one of the conventional blinds; Figure 2 is a partial exploded perspective view of the conventional blind of Figure 1; 3 is a perspective view of a first preferred embodiment of the present invention; FIG. 4 is a partial exploded perspective view of the first preferred embodiment, mainly illustrating a locking mechanism of the blind; FIG. A partial cross-sectional view of a preferred embodiment in which one gear unit of the locking linkage mechanism is in a locked position; FIG. 6 is another partial exploded perspective view of the first preferred embodiment, illustrating the curtain FIG. 7 is another partial cross-sectional view of the first preferred embodiment, and illustrates the steering mechanism; FIG. 8 is a partial perspective view of the first preferred embodiment, illustrating that the gear unit is located on the card The relative relationship between the gear unit and a locking unit when positioning; FIG. 9 is a partial cross-sectional view similar to FIG. 5, wherein the gear unit is in a non-locking position; FIG. 10 is along the line XX in FIG. 1 is a schematic view similar to FIG. 5, illustrating a second preferred embodiment of the present invention; FIG. 12 is a partial side elevational view of the second preferred embodiment; FIG. A partial perspective view of a third preferred embodiment of a curtain of the present invention, The curtain out of the gear unit and a locking unit; FIG. 14 is a partial and schematic side view of one embodiment of the third preferred embodiment, also indicating that the gear unit and the locking unit.

21‧‧‧First hanging plate

211‧‧‧Fixed plug

212‧‧‧ hanging parts

213‧‧‧ inserted wall

23‧‧‧ Gear housing

230‧‧‧ base wall

231‧‧‧ Gear chamber

232‧‧‧ bottom wall

233‧‧‧Outer wall

234‧‧‧Inside wall

235‧‧ ‧ wall section

236‧‧‧straight perforation

237‧‧‧ Shoulder

238‧‧‧ horizontal perforation

4‧‧‧Kanding linkage mechanism

42‧‧‧ Gear unit

421‧‧‧First gear

422‧‧‧second gear

423‧‧‧first card teeth

424‧‧‧ linkage department

425‧‧‧second card teeth

426‧‧‧ Sockets

43‧‧‧Flexible parts

44‧‧‧ card unit

441‧‧‧ jack

442‧‧‧King groove

54‧‧‧ latch

55‧‧‧Control lever

551‧‧‧Spiral guide groove

Claims (9)

A curtain having a lifting and locking function comprises: a fixing seat; a curtain mechanism comprising a take-up lever rotatably mounted on the fixing seat, and a retracting and hanging by the retracting rod a curtain unit; a steering mechanism comprising a rotatable lever; and a locking linkage mechanism comprising a gear unit for urging the take-up lever of the curtain mechanism and the lever of the steering mechanism, An elastic member that holds the gear unit in a locked position, and a locking unit that prevents the gear unit from transmitting power when the gear unit is in the locked position, and the lever can overcome the elastic force of the elastic member to make the gear unit Switching from the locked position to an un-locked position. A curtain having a lifting and locking function according to claim 1, wherein the gear unit has a first gear coupled to the lever, and a combination of the winding sleeve and the winding sleeve a second gear meshed by the first gear, the first gear having a plurality of first teeth disposed at equal angles, and the second gear having a plurality of equiangular arrangements and engaging the first teeth of the first gear The second card tooth. A curtain having a lifting and locking function according to claim 2, wherein the fixing base comprises a gear housing having a base defining a gear chamber for housing the gear unit a wall, and the locking unit is disposed on a base wall of the gear housing, and has at least one of the first gears when the gear unit is in the locked position A locking groove that engages one of the first latches. The curtain according to claim 2, wherein the second gear further has a plurality of inner surfaces between the adjacent second teeth, and the locking unit Having a plurality of locking grooves respectively disposed on the inner surface of the second gear and engageable with one of the first engaging teeth of the first gear, the number of the locking grooves is less than The number of second teeth of the second gear. A curtain having a lifting and locking function according to claim 2, wherein the locking unit has a latching block disposed on the first gear, and a latching lever protruding from the second gear The card mast has a plurality of locking grooves for the card block to be engaged. A curtain having a lifting and locking function according to any one of claims 3 to 5, wherein the lever of the steering mechanism has a plurality of spiral guide grooves arranged along the length direction, and the steering mechanism further It includes a steering unit that drives the lever to rotate in a take-up direction. A curtain having a lifting and locking function according to claim 6 , wherein the operating unit has a gripping seat that surrounds the lever and has a receiving space, and a gripping seat mounted on the gripping seat a linkage seat in the space, and a plurality of linkages mounted on the linkage seat and sandwiched between the linkage seat and one of the spiral guide grooves of the control lever, the accommodation space of the grip holder The utility model has a linkage area and a non-linked area, wherein the linkage seat is movable between the linkage area of the accommodating space and the non-coupling area; and the linkage area corresponding to the accommodating space of the cradle When pushing the grip, the force will drive the company. The movable seat and the control rod rotate, and the gear unit drives the winding mechanism of the curtain mechanism to rotate. A curtain having a lifting and locking function according to claim 7 , wherein the gripping seat of the operating unit further has a grip ring wall defining the receiving space, and a plurality of grip ringes a joint protruding rib protruding from the wall to the interlocking area of the accommodating space, and the connecting seat has an outer ring wall, and a plurality of interlocking protrusions protruding from the outer ring wall and respectively abutting the interlocking ribs of the urging seat Piece. A curtain having a lifting and locking function according to claim 8 , wherein the curtain unit of the curtain mechanism has a curtain having a top end mounted on the fixing seat, a winding piece, and a plurality of intervals Connecting the curtain and the connecting rod of the winding.