TW201433685A - Roll-up shutter featuring adjustable spring torque - Google Patents

Abstract

A roll-up shutter featuring adjustable spring torque according to the present invention comprises a roll-up shutter body and an adjustment device. The roll-up shutter body comprises a shaft and two wheel disks. The two wheel disks are respectively and rotatably sleeved on two ends of the shaft. The roll-up shutter body further comprises at least one spring. Two ends of the spring are respectively fixed to the shaft and the wheel disks. The shaft is rotatable about a center defined by an axis thereof to release the torque of the spring or to tighten the spring. The adjustment device comprises a one-way gear and a retention block. The one-way gear is mounted to the shaft in a radial direction of the shaft. The one-way gear and the shaft are rotatable synchronously. The one-way gear comprises a plurality of teeth extending in the radial direction of the shaft and arranged circumferentially. Each of the teeth has a front surface and a back surface in the circumferential direction of the one-way gear, and respectively formed a tooth face and a tooth back thereon. When the spring releases the torque to make the shaft tending to rotate, the retention block is abutted against the tooth face of the teeth to prevent the shaft from rotation. When the shaft is rotated to tighten the spring, the tooth backs of the teeth push up the retention block, causing the retention block to disengage, so as to allow a user to adjust the torque of the spring through f rotating the one-way gear and to provide an excellent engagement effect by using the engagement of the one-way gear.

Description

Roll-up door capable of adjusting spring torque

The invention mainly discloses a rolling door capable of adjusting the spring torque, in particular, a rolling door which uses a one-way gear to adjust the spring torque only by one-way rotation of the rolling door shaft.

Generally, the existing iron roll doors have a mechanism for rewinding the iron roll door by the torsion force of the spring. The roll door has a reel, and the two ends of the reel are respectively provided with a reel, and the two reels can be opposite to the reel. Rotating, the two reels can be wound together to control the lifting or lowering of the rolling shutter, and there is a torsion spring between the reel and the reel, and the two ends of the torsion spring are respectively connected to the reel and the reel The wheel, and the torsion spring is twisted to have a predetermined torsion force, and the force that can provide the rotation of the reel assists the reel to return to the original position, and the roller shutter is raised to the highest position.

Please refer to the "Rolling Door Spindle" patent of China Patent Certificate No. M432703, which is a main shaft of an iron rolling door. The main shaft includes a rotating shaft, a rolling door flywheel and a rolling door spring. The rotating shaft is fixed. The rolling door flywheel is sleeved outside the rotating shaft and rotatable relative to the rotating shaft, and the rolling door spring is sleeved on the rotating shaft, the rolling door spring has a first end and a second end, and the first end of the rolling door spring is connected to the fixing member and the second The end is connected to the roll door flywheel, so that the second end of the roll door flywheel can rotate relative to the rotating shaft as the roll door flywheel rotates, and the first end of the roll door spring can slide along the axial direction of the rotating shaft with the fixing member, when the user will When the rolling door is pulled down, the rolling door spring can be wound into a state of accumulating force. When the user rolls the rolling door, the rolling door spring can release the force to provide the auxiliary lifting door lifting force, so that the user can easily Retract the roll door.

However, after a long period of use, the main shaft of the rolling door is bound to produce elastic fatigue of the rolling door spring. At this time, the torsion force of the rolling door spring must be adjusted, so that the rolling spring can be provided with sufficient auxiliary force to retract the rolling door. It is not easy to adjust the torsion force of the rolling door spring by using the roller door spindle of such a structure. The main shaft of the rolling door spindle must be opened, and the fixing member on the main shaft can be directly adjusted to adjust the torsion force of the rolling door spring. The effect is quite inconvenient to use.

In view of the above-described deficiencies in the conventional structure, the inventors have invented a roll door capable of adjusting the spring torsion, which overcomes all of the disadvantages of the above-described conventional structure.

The main purpose of the invention is to provide a roll door comprising a roll door body and an adjusting device, the roll door body comprising a shaft and two wheels, the two wheels The discs are respectively rotatably sleeved on both sides of the shaft, and the rolling door body further comprises at least one spring. The two ends of the spring are respectively fixed on the shaft and the wheel, and the shaft can rotate with its own rotating shaft as an axis. The torsion force of the spring is released or the spring is tightened. The adjusting device comprises a one-way gear and a fixing block. The one-way gear is arranged on the shaft along the radial direction of the shaft, and the one-way gear and the shaft can rotate synchronously, the one-way gear A plurality of convex teeth are arranged along the radial ring of the shaft, and the convex teeth form a tooth surface and a tooth back respectively on the front surface and the back surface of the one-way gear circumferential direction, and when the spring releases the torque to make the shaft have a tendency to rotate, the fixed block reaches The tooth surface of the convex tooth prevents the shaft from rotating, and when the shaft is rotated to tighten the spring, the tooth back of the protruding tooth pushes the fixing block to disengage the fixing block, thereby providing the user to adjust the torque of the spring by rotating the one-way gear. , And using one-way gear engaging manner engaging good effect.

The second object of the invention is to provide a rolling door for adjusting the spring torque. When the spring is elastically fatigued and the torque is insufficient, the user can directly use the tool to move the one-way gear. Rotate it to tighten the spring when the one-way gear rotates.

Other objects, advantages and novel features of the invention will become apparent from the description and appended claims.

The technology, means and functions of the present invention are described in detail with reference to the accompanying drawings.

1 to 4, a perspective view, an exploded perspective view, and a cross-sectional structural view of a roll door capable of adjusting a spring torque according to the present invention. The roll door 10 of the present invention includes a roll door body 20 and an adjustment device 30;

The roll door body 20 includes a shaft 21 and two wheels 22, and the two wheels 22 are rotatably sleeved on both sides of the shaft 21, so that the wheel 22 can be opposite to the shaft 21 rotation. The roll door body 20 further includes at least one spring 23, the at least one spring 23 is two in the embodiment, and one end of the spring 23 is fixed to the shaft 21, and the spring 23 is away from the shaft One end of 21 is fixed to the wheel 22, and the two springs 23 are respectively connected to the two wheels 22 and the shaft 21, and the two springs 23 are respectively connected to the two The discs 22 are close to one side of each other. The spring 23 is a torsion spring in this embodiment, and the wheel 22 is maintained in the original position in a natural state, and can be driven to be tightened when the wheel 22 is rotated by an external force, as the wheel is used for the wheel After the external force of 22 is removed, the spring 23 can bring the wheel 22 back to the original position.

The roll door body 20 further includes two fixing seats 24. The fixing seat 24 is sleeved outside the shaft 21. The fixing seat 24 is provided with a screw 90 along the radial direction of the shaft 21, and the nut 91 is utilized. Fixing the screw 90 to the fixing base 24 to prevent the screw 90 from coming off the fixing seat 24. When the screw 90 is locked, the screw 90 abuts against the shaft 21, so that the fixing seat 24 is fixed to the shaft 21 and can be The shaft 21 rotates in synchronization. The spring 23 is connected to one side of the fixing base 24, and the two ends of the spring 23 are fixed to the wheel 22 and the fixing base 24 via screws 90 and nuts 91, respectively. The shaft 21 is rotatable in a first direction or a second direction with its own axis of rotation. When the shaft 21 rotates in the first direction, the torsion of the spring 23 can be released. When the shaft 21 rotates in the second direction. The spring 23 can be tightened. When the roller door body 20 is in a normal use state, the spring 23 has a predetermined torque, so that the shaft 21 has a tendency to rotate in the first direction, and at the same time, the wheel 22 can be maintained. In the original location.

The adjusting device 30 includes a one-way gear 31 and a fixing block 32. The one-way gear 31 is disposed on the shaft 21 along the radial direction of the shaft 21, and the one-way gear 31 is along the radial direction of the shaft 21. The ring is provided with a plurality of convex teeth 33. The convex teeth 33 form a tooth surface 331 (FIG. 6) along the front surface of the one-way gear 31 in the circumferential direction, and the convex teeth 33 form a tooth along the back surface of the one-way gear 31 in the circumferential direction. The back 332 forms a tooth gap 333 between two adjacent convex teeth 33 of the plurality of protruding teeth 33. The fixing block 32 is selectively disposed in one of the plurality of teeth 333, and the fixing block 32 is disposed in the inter-tooth 333 in a natural state. The fixing block 32 includes an abutting surface 321 and a sliding surface 322 (FIG. 6). When the fixing block 32 is disposed in the inter-tooth 333, the abutting surface 321 of the fixing block 32 abuts against the convex portion. The tooth surface 331 of the tooth 33, the sliding surface 322 of the fixing block 32 abuts against the tooth back 332 of the convex tooth 33.

When the shaft 21 has a tendency to rotate in the first direction, the fixing block 32 abuts against the tooth surface 331 of the protruding tooth 33 to prevent the shaft 21 from rotating in the first direction to maintain the torque of the spring 23 at a predetermined time. Torque force, when the shaft 21 rotates in the second direction, the tooth back 332 of the protruding tooth 33 pushes the fixing block 32 to cause the fixing block 32 to disengage from the inter-tooth 333, so that the shaft 21 can smoothly follow the second The direction is rotated. The one-way gear 31 is provided with an axle 311. The axle 311 is inserted into the shaft 21 along the axial direction of the shaft 21, and penetrates the axle 311 through the screw 90 in the radial direction of the shaft 21. The shaft 21 allows the one-way gear 31 and the shaft 21 to rotate synchronously, and the end of the screw 90 is screwed with a nut 91 to prevent the screw 90 from coming off.

The adjusting device 30 further includes a first supporting frame 34. The first supporting frame 34 has a pivoting portion 341. The pivoting portion 341 can be pivoted to the fixing block 32. The first supporting frame 34 includes a first supporting frame 34. a pivot 342 and an elastic member 343, the pivot 342 simultaneously extending through the fixing block 32 and the pivoting portion 341 of the first supporting frame 34, so that the fixing block 32 can pivot relative to the first supporting frame 34, and the pivoting portion 342 The elastic member 343 is disposed between the fixing block 32 and the first supporting frame 34. The elastic member 343 pushes the fixing block 32 to make the fixing block 32 abut against the one-way gear 31 in a natural state.

The first support frame 34 is connected to the first support shaft 344 , and the first support frame 344 is fixedly connected to the first support frame 344 through the screw 90 . 34. A positioning member 345 is disposed on a side of the first supporting shaft 344 away from the first supporting frame 34. The positioning member 345 is rotatable relative to the first supporting shaft 344. The positioning member 345 has a sliding portion 346. The sliding portion 346 is located on a side of the positioning member 345 away from the first support shaft 344. An end of the first support shaft 344 away from the first support frame 34 is axially inserted into the axle 311 of the one-way gear 31 to enable the one-way gear 31 to rotate relative to the first support shaft 344.

The adjusting device 30 further includes a second supporting frame 35. The second supporting frame 35 is connected with a second supporting shaft 351. The second supporting frame 35 and the second supporting shaft 351 are simultaneously penetrated by screws 90. The second support shaft 351 is fixedly coupled to the second support frame 35. The second support shaft 351 is axially inserted from the end of the second support frame 35 in an axial direction of the shaft 21 away from the axle 311. The shaft 21 is rotatable relative to the second support shaft 351. The first support frame 34 and the second support frame 35 are respectively fixed to the side seats 92 on both sides of the roll door box by screw locking.

Please refer to FIG. 5 again, which is a schematic diagram of the operation of the roll door adjusting rod capable of adjusting the spring torque of the present invention. The roll door 10 further includes an adjusting rod 40. The adjusting rod 40 includes a holding portion 41 and an adjusting portion 42. The holding portion 41 and the adjusting portion 42 are respectively located at two ends of the adjusting rod 40. The grip portion 41 can be gripped by the user. The adjusting portion 42 has a latching tooth 42. The adjusting portion 42 is recessed with a sliding hole 421. The sliding hole 421 has a non-circular shape, and the adjusting portion 42 slides. The adjusting hole 42 can be selectively sleeved outside the sliding portion 346 of the positioning member 345, so that the adjusting rod 40 can slide along the radial direction of the shaft 21 relative to the positioning member 345, and the adjusting portion 42 is sleeved. When the slip portion 346 is outside, the latch 43 can be selectively engaged with the one-way gear 31.

Please refer to FIG. 6 to FIG. 10 for further operation of the roll door capable of adjusting the spring torque of the present invention. When the user wants to adjust the torque of the spring 23, the one-way gear 31 can be rotated by the adjusting rod 40 to adjust the torque of the spring 23. After the user holds the grip portion 41 of the adjusting rod 40, the adjustment is performed. The adjusting portion 42 of the rod 40 is sleeved outside the sliding portion 346 of the positioning member 345, and moves the adjusting rod 40 toward the direction of the one-way gear 31 to engage the engaging teeth 43 with the one-way gear 31. When the user pulls the adjusting rod 40, the one-way gear 31 can be rotated until the shaft 21 is rotated by a certain angle, and the fixing block 32 is re-applied to the adjacent one of the plurality of teeth 333. One tooth 333, that is, the effect of tightening the spring 23.

Moreover, since the position of the roll door installation is necessarily located at a high place and abuts against the wall and the ceiling, the user must greatly rotate the one-way gear 31 when the user wants to make a large adjustment, but the adjustment lever 40 is hindered. It may be stuck to the ceiling or the roll door. The user may not be able to engage the one-way gear 31 with the adjustment rod 40 and then turn the one-way gear 31 to the position. In this case, only the adjustment rod 40 needs to be reversed. When the direction is rotated, the latching teeth 43 of the adjusting rod 40 naturally slide relative to the tooth back 332 of the one-way gear 31, and the latching teeth 43 are engaged with the other tooth of the one-way gear 31, and the user can again Rotating the one-way gear 31 at a time provides the user with the effect of easily adjusting the spring torque.

When the fixing block 32 is disposed in the inter-tooth 333, the abutting surface 321 of the fixing block 32 abuts against the tooth surface 331 of the protruding tooth 33, and the sliding surface 322 of the fixing block 32 abuts against the convex tooth The tooth back 332 of the 33 enables the fixing block 32 to provide a stable jamming effect, preventing the rolling door from slipping relative to the one-way gear 31 due to vibration or excessive force during use. The predetermined torque of the spring 23 is weakened.

As far as the above is concerned, it can be concluded that the present invention has the following advantages:

1. The roll door capable of adjusting the spring torque of the present invention, wherein the roll door comprises a roll door body and an adjusting device, the roll door body comprises a shaft and two wheels, and the two wheels are respectively The rotating sleeve is sleeved on both sides of the shaft, and the rolling door body further comprises at least one spring. The two ends of the spring are respectively fixed on the shaft and the wheel, and the shaft can rotate with its own rotating shaft as an axis to release the spring. Torsion or to tighten the spring, the adjusting device comprises a one-way gear and a fixed block, the one-way gear is arranged on the shaft along the radial direction of the shaft, the one-way gear and the shaft can rotate synchronously, and the one-way gear is along the shaft The radial ring is provided with a plurality of convex teeth, and the convex teeth form a tooth surface and a tooth back respectively on the front surface and the back surface of the one-way gear circumferential direction. When the spring releases the torque to make the shaft have a tendency to rotate, the fixing block abuts against the convex portion. The tooth surface of the tooth prevents the shaft from rotating. When the shaft is rotated to tighten the spring, the tooth back of the protruding tooth pushes the fixing block to disengage the fixing block, thereby providing the user to adjust the torque of the spring by rotating the one-way gear, and using One-way gear Catch engaging way to good effect.

2. The roll door capable of adjusting the spring torque of the present invention, wherein the roll door capable of adjusting the spring torque provides the user with the effect of conveniently adjusting the spring torque. When the spring is elastically fatigued and the torque is insufficient, the user can directly use the tool. The one-way gear is turned to rotate, and the spring can be tightened when the one-way gear rotates.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.

10. . . Roll-up door

20. . . Rolling door body

twenty one. . . Shaft

twenty two. . . Roulette

twenty three. . . spring

twenty four. . . Fixed seat

30. . . Adjustment device

31. . . One-way gear

311. . . axle

32. . . Fixed block

321. . . Abutment

322. . . Slip surface

33. . . Convex tooth

331. . . Tooth surface

332. . . Tooth back

333. . . Tooth

34. . . First support frame

341. . . Pivot

342. . . Pivot

343. . . Elastic part

344. . . First support shaft

345. . . Positioning member

346. . . Slip section

35. . . Second support frame

351. . . Second support shaft

40. . . Adjustment rod

41. . . Grip

42. . . Adjustment department

421. . . Slip hole

43. . . Card tooth

90. . . Screw

91. . . Nut

92. . . Side seat

Fig. 1 is a perspective view of the roll door of the present invention capable of adjusting the spring torque. Fig. 2 is an exploded perspective view showing the side of the roll door adjusting device capable of adjusting the spring torque of the present invention. Fig. 3 is an exploded perspective view showing the other side of the roll door capable of adjusting the spring torque of the present invention. Figure 4 is a cross-sectional structural view taken along line 4-4 of Figure 1 of the present invention. Fig. 5 is a perspective view showing the rolling door adjusting lever capable of adjusting the spring torque of the present invention. Fig. 6 is a schematic view showing the operation of the roll door adjusting device capable of adjusting the spring torque of the present invention. Fig. 7 is a schematic view showing the operation of the roll door adjusting device capable of adjusting the spring torque of the present invention. Fig. 8 is a schematic view showing the operation of the roll door adjusting device capable of adjusting the spring torque of the present invention. Fig. 9 is a schematic view showing the operation of the roll door adjusting device capable of adjusting the spring torque of the present invention. Fig. 10 is a schematic view showing the operation of the roll door adjusting device capable of adjusting the spring torque of the present invention.

10. . . Roll-up door

20. . . Rolling door body

twenty one. . . Shaft

twenty two. . . Roulette

twenty three. . . spring

twenty four. . . Fixed seat

30. . . Adjustment device

31. . . One-way gear

311. . . axle

32. . . Fixed block

321. . . Abutment

33. . . Convex tooth

331. . . Tooth surface

332. . . Tooth back

333. . . Tooth

34. . . First support frame

341. . . Pivot

342. . . Pivot

343. . . Elastic part

344. . . First support shaft

345. . . Positioning member

346. . . Slip section

40. . . Adjustment rod

42. . . Adjustment department

43. . . Card tooth

90. . . Screw

91. . . Nut

92. . . Side seat

Claims (12)

A roll door capable of adjusting a spring torque, comprising: a roll door body, the roll door body comprising a shaft and two wheels, wherein the two wheels are rotatably sleeved on the shaft On both sides, the roll door body further includes at least one spring, one end of the spring is fixed to the shaft, and the end of the spring away from the shaft is fixed to the wheel, and the shaft can be rotated by its own shaft The shaft pivots in a first direction or a second direction, and the shaft can release the torsion of the spring when rotated in the first direction, and the shaft can be tightened when the shaft rotates in the second direction; an adjusting device, the adjusting The device includes a one-way gear and a fixed block, the one-way gear is disposed on the shaft along a radial direction of the shaft, the one-way gear and the shaft are synchronously rotatable, and the one-way gear is along the shaft The radial ring is provided with a plurality of convex teeth, and the convex tooth forms a tooth surface along the front surface of the one-way gear circumferential direction, and the convex tooth forms a tooth back along the back surface of the one-way gear circumferential direction, and the plurality of convex teeth Forming a gap between two adjacent convex teeth The fixing block is selectively disposed in one of the plurality of teeth, and the fixing block is disposed in the interdental space in a natural state, and the shaft has a tendency to rotate in the first direction. The fixing block abuts against the tooth surface of the protruding tooth to prevent the shaft from rotating in a first direction. When the shaft rotates in the second direction, the tooth back of the protruding tooth pushes the fixing block to disengage the fixing block from the tooth. between. The roll door capable of adjusting a spring torque according to claim 1, wherein the number of the at least one spring is two, and the two springs are respectively connected to the two wheels and the shaft, The two springs are respectively connected to one side of the two discs close to each other. The roll door capable of adjusting a spring torque according to claim 2, wherein the roll door body further comprises two fixing bases, the fixing seat sleeve is disposed outside the shaft, so that the fixing seat is fixed on the shaft The shaft can be rotated in synchronization with the shaft, and one side of the fixing seat can be connected to the spring, and two ends of the spring are respectively fixed to the wheel and the fixing seat. The roll door capable of adjusting a spring torque according to claim 3, wherein the fixing seat is provided with a screw along a radial direction of the shaft, and a screw is used to fix the screw to the fixing seat to prevent the screw from being detached from the fixing seat. The roll door capable of adjusting a spring torque according to any one of claims 1 to 4, wherein the fixed block includes an abutting surface and a sliding surface, and the fixing block is disposed in the inter-tooth, the fixing The abutting surface of the block abuts against the tooth surface of the protruding tooth, and the sliding surface of the fixing block abuts against the tooth back of the protruding tooth. The roll door capable of adjusting a spring torque according to any one of claims 1 to 4, wherein the one-way gear is provided with an axle, the axle is inserted into the shaft along the axial direction of the shaft, and is transmitted through The screw penetrates the axle and the shaft simultaneously in the radial direction of the shaft. The roll door capable of adjusting a spring torsion according to claim 6, wherein the adjusting device further comprises a first support frame, the first support frame having a pivoting portion, the pivoting portion being capable of pivoting the fixed block The first support frame includes a pivot and an elastic member, and the pivot shaft extends through the fixing block and the pivoting portion of the first support frame to enable the fixed block to pivot relative to the first support frame, and The elastic member is disposed between the fixing block and the first supporting frame, and the elastic member pushes the fixing block to make the fixing block abut against the one-way gear in a natural state. The roll door capable of adjusting a spring torque according to claim 7, wherein the first support frame is connected to a first support shaft, and the first support shaft is fixedly coupled to the first support frame, the first support shaft is away from One end of the first support frame is axially inserted into the axle of the one-way gear to enable the one-way gear to rotate relative to the first support shaft, and the adjusting device further includes a second support frame, the second The support frame is coupled to a second support shaft, the second support shaft is fixedly coupled to the second support frame, and the second support shaft is axially inserted from the end of the second support frame to the shaft away from the axle. In one end, the axle is rotatable relative to the second support shaft. The roll door capable of adjusting the spring torque according to claim 8, wherein the first support frame and the second support frame are respectively fixed to the side seats on both sides of the roll door box by screw locking. The roll door capable of adjusting the spring torsion according to claim 8, wherein a side of the first support shaft away from the first support frame is sleeved with a positioning member, and the positioning member is rotatable relative to the first support shaft, The positioning member has a sliding portion, the sliding portion is located on a side of the positioning member away from the first supporting shaft, and the spring adjusting structure further comprises an adjusting rod, the adjusting rod includes a holding portion and an adjusting portion The adjusting portion and the adjusting portion are respectively located at two ends of the adjusting rod, the holding portion can be held by a user, the adjusting portion has a latching tooth, and the adjusting portion is recessed with a sliding hole, the sliding portion The shifting hole is non-circular, and the sliding hole of the adjusting portion can be selectively sleeved outside the sliding portion of the positioning member, so that the adjusting rod can slide along the radial direction of the shaft relative to the positioning member, the adjusting When the sleeve is sleeved outside the slip portion, the latch can selectively engage the one-way gear. The roll door capable of adjusting a spring torque according to any one of claims 1 to 4, wherein the spring has a predetermined torque when the roll door body is in a normal use state, so that the shaft has a rotation in the first direction. The trend, while at the same time enabling the wheel to remain in its original position. A roll door capable of adjusting a spring torque according to any one of claims 1 to 4, wherein the wheel is maintained in an original position in a natural state, and the spring can be tightened when the wheel is rotated by an external force. The spring can drive the wheel back to the original position after being removed as an external force for the wheel.