AU2018100102A4 - Rolling door driving device - Google Patents

Abstract

Abstract The present disclosure illustrates an extra rolling door driving device includes a chainring, a drive block, and an electric machine assembly. The chainring includes at least two partial chainrings which can be assembled with each other, and an avoidance groove configured to avoid a shaft of a rolling door assembly to be assembled, so that the chainring is assembled with the rolling door assembly in a radial direction of the shaft. The drive block includes an end combined with the assembly plate of the chainring, and other end configured to combine with a door leaf of the rolling door assembly. A driving gear is engaged with the gear of the chainring, and the electric machine assembly drives rotation of the chainring through the driving gear, so that the chainring is able to drive the door leaf of the rolling door assembly to roll. --4 -I-4 (L0 0 N%) cA ) -4 01: N

Description

“ROLLING DOOR DRIVING DEVICE”

Field of the Invention [0001] The present invention relates to a rolling door driving device, more particularly to an extra rolling door driving device.

Background to the Invention [0002] A rolling door is usually equipped with a channel of the building such as the building or the garage, and is generally also called as an iron rolling door. Rolling doors can be classified into rolling doors with power assistance, and rolling doors without power assistance. In a conventional solution, in order to modify a rolling door without power assistance into a rolling door with power assistance, or to replace a broken driving device by a new driving device, a shaft seat of a rolling shaft of the rolling door must be separated first, and the new driving device can then be mounted into the rolling shaft to drive the rolling door. However, the mechanism of the door leaf and the rolling shaft of the rolling door are made by metal material and are very heavy, so the process of installing or replacing the driving device requires special machines to assist in hanging mechanism; furthermore, the detaching process is very complicated and spends a lot manpower and time.

[0003] The present invention seeks to address some of these concerns, at least in part.

Summary of the Invention [0004] According to one aspect of the present invention there is provided a rolling door driving device which includes a chainring including at least two partial chainrings arranged to assemble as a circular chainring, wherein each of the at least two partial chainring includes an assembly plate, a gear and a combination surface. At least two partial chainrings can be assembled with each other by the combination surfaces thereof. The chainring includes an avoidance groove configured to avoid a shaft of the rolling door assembly to be assembled, so that the chainring can be assembled with the rolling door assembly in a radial direction of the shaft. The rolling door driving device may be an extra driving device; that is, in addition to a primary driving device.

[0005] The extra rolling door driving device may also include at least one drive block comprising a first end combined with the assembly plate of the chainring, and a second end configured to combine with the door leaf of the rolling door assembly to be assembled. The extra rolling door driving device may also include an electric machine assembly including a power motor configured to drive a driving gear to rotate, the driving gear being engaged with the gear of the chainring, and the power motor driving rotation of the chainring through the driving gear, so that the chainring can drive the door leaf of the rolling door assembly to roll.

[0006] In some embodiments of the present disclosure, the at least one drive block is in a L shape comprising a vertical part and a horizontal part, the vertical part being locked to the assembly plate by the screw, and the horizontal part being locked to the door leaf of the rolling door assembly by the screw.

[0007] In some embodiments of the present disclosure, the assembly plate is provided with several assembly holes, and at least one drive block comprises a drive part, a stop plate and a neck part. After the at least one drive block is inserted through at least one assembly hole, the neck part is engaged with the inserted the assembly hole, and the drive part is locked to the door leaf of the rolling door assembly by a screw.

[0008] In some embodiments of the present disclosure, the drive part comprises a counterbore, the head part of the screw is received in the counterbore, and the drive part is disposed in a concave part of the door leaf.

[0009] In some embodiments of the present disclosure, the gear is an inner gear or an outer gear.

[0010] In some embodiments of the present disclosure, each of the at least two partial chainring comprises an engagement assembly formed on the combination surface thereof. The engagement assembly comprises an engagement block and an engagement groove, and the at least two partial chainring are engaged with each other by the engagement assembly thereof.

[0011] In some embodiments of the present disclosure, each of the at least two partial chainrings comprises a semicircular groove formed on the combination surface thereof, a dowel pin being inserted into the semicircular groove of the partial chainring adjacent to each other. Each of the at least two partial chainring comprises an combination hole formed on the combination surface thereof, and the partial chainrings adjacent to each other are fastened by inserting screw through the combination hole thereof.

[0012] In some embodiments of the present disclosure, the electric machine assembly is locked with the support of the rolling door assembly, by a bolt.

[0013] In some embodiments of the present disclosure, the material of the chainring can be nylon 66 (PA polyamide) added with glass fibre.

Brief Description of the Drawings [0014] It will be convenient to further describe the invention with reference to preferred embodiments of the present invention. Other embodiments are possible, and consequently the particularity of the following discussion is not to be understood as superseding the generality of the preceding description of the invention. In the drawings: [0015] FIG. 1 is an exploded view of a first embodiment of an extra rolling door driving device of the present disclosure; [0016] FIG. 2 is an assembly view of a part of the first embodiment of the extra rolling door driving device of the present disclosure; [0017] FIG. 3 is an assembly view of a part of the first embodiment of the extra rolling door driving device of the present disclosure; [0018] FIG. 4 is a perspective view of a drive block of the first embodiment of the extra rolling door driving device of the present disclosure; [0019] FIG. 5 is a perspective assembled view of the first embodiment of the extra rolling door driving device of the present disclosure; [0020] FIG. 6 is a front view of assembly of the first embodiment of the extra rolling door driving device of the present disclosure; [0021 ] FIG. 7 is an exploded view of a second embodiment of an extra rolling door driving device of the present disclosure; [0022] FIG. 8 is a perspective view of assembly of the second embodiment of the extra rolling door driving device of the present disclosure; [0023] FIG. 9 is a front view of an assembly of the second embodiment of the extra rolling door driving device of the present disclosure; [0024] FIG. 10 is an exploded view of a third embodiment of an extra rolling door driving device of the present disclosure; [0025] FIG. 11 is a front view of an assembly of the third embodiment of the extra rolling door driving device of the present disclosure; [0026] FIG. 12 is a perspective view of an assembly of a fourth embodiment of an extra rolling door driving device of the present disclosure; [0027] FIG. 13 is a perspective view of a drive block of the fourth embodiment of the extra rolling door driving device of the present disclosure; and [0028] FIG. 14 is a perspective view of an assembly of the fourth embodiment of the extra rolling door driving device of the present disclosure.

Detailed Description of Preferred Embodiments [0029] Regarding the drawings, the relative proportions and ratios of elements in the drawings may be exaggerated or diminished in size for the sake of clarity and convenience. Such arbitrary proportions are only illustrative and not limiting in any way. The same reference numbers are used in the drawings and description to refer to the same or like parts.

[0030] It is to be understood that, although the terms 'first’, 'second’, ‘third’, and so on, may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only for the purpose of distinguishing one component from another component. Thus, a first element discussed herein could be termed a second element without altering the description of the present disclosure. As used herein, the term "or" includes any and all combinations of one or more of the associated listed items.

[0031] Please refer to Figs. 1 through 4, FIG. 1 is an exploded view of a first embodiment of an extra rolling door driving device of the present disclosure, FIG. 2 is schematic view of a part of the first embodiment of the present disclosure, and Fig. 3 is a schematic view of assembly of a part of the first embodiment of the present disclosure, and FIG. 4 is a perspective view of a drive block of the first embodiment of the present disclosure. The extra rolling door driving device includes a chainring, at least one drive block 20 and an electric machine assembly 30. The chainring 10, the at least one drive block 20 and the electric machine assembly 30 can be assembled with an existing rolling door assembly 70.

[0032] The rolling door assembly 70 is a rolling-door device without power assistance or having a broken driving device, that is, the rolling door assembly 70 is one of the existing rolling-door devices, but the present disclosure is not limited thereto. The rolling door assembly 70 includes a door leaf 71, a rewinder wheel 72, a shaft 73, a shaft seat 74 and a support 75. The door leaf 71 is usually formed by movably connecting and pivoting multiple long plates, so that the door leaf 71 can be rolled. In order to improve the bending rigidity of the door leaf 71, the door leaf 71 can be formed with several convex parts 711 and several concave parts 712 which are alternately disposed. The door leaf 71 can be wound on several rewinder wheels 72, and each rewinder wheel 72 is provided with a scroll line formed on an outer periphery thereof to prevent the wound door leaf 71 from having a large offset after being wound on the rewinder wheel 72. As a result, the first round of the door leaf 71 wound on the rewinder wheel 72 is in an involute shape but not a concentric circle shape. The several rewinder wheels 72 are mounted on a shaft 73; in this embodiment, the rewinder wheel 72 is mounted on the shaft 73 through the bearing, so that the rewinder wheel 72 can be rotated about the shaft 73. The shaft 73 is fastened on a support 75 by a shaft seat 74, and the support 75 can be fastened on the building, so as to facilitate to install and set up the rolling door assembly 70.

[0033] The chainring 10 includes at least two partial chainring 10 which can be assembled as a circular chainring. In this embodiment, the at least two partial chainrings includes a first partial chainring 10a and a second partial chainring 10b, each of the first and second partial chainrings 10a and 10b includes an assembly plate 13, a gear 11 and a combination surface 12. The first and second partial chainrings 10a and 10b are combined with each other by the combination surfaces 12. Furthermore, the chainring 10 can includes an avoidance groove 123 configured to avoid the shaft 73 of the rolling door assembly 70 to be assembled, so that the chainring 10 can be assembled with the rolling door assembly 70 in a radial direction of the shaft 73. In this embodiment, the first and second partial chainrings 10a and 10b can be assembled as the chainring 10, such as a circular chainring. Preferably, each of the first and second partial chainrings 10a and 10b is a semicircular chainring, but the present disclosure is not limited thereto; the chainring 10 can also be separated into three partial chainrings or four partial chainrings. The purpose of separating the chainring 10 into at least two partial chainrings is to mount the chainring 10 on the shaft 73 of the rolling door assembly 70 from the side of the shaft 73, that is, in a radial direction of the shaft 73. As a result, the assembly operation can be performed without detaching the main mechanism of the rolling door assembly 70. The way of separating the chainring 10 into different number of the partial chainrings can be viewed as a modification of this embodiment. The avoidance groove 123 is configured to avoid the space occupied by the shaft 73, for this reason, the shape of the avoidance groove 123 is not limited to the semicircular shape shown in figures.

[0034] The first and second partial chainrings 10a and 10b are combined with each other by the combination surfaces 12 thereof, and the combination of the first and second partial chainrings 10a and 10b can be implemented by screw, rivet, glue or assistant fixture; as shown in figures, the combination surface 12 comprises an combination hole 121, and screw 15 can be locked into the combination hole 121, that is, the combination surface 12 of each of the at least two partial chainrings is formed with the combination hole 121, and the partial chainrings adjacent to each other can be fastened by inserting the screw 15 through the combination hole 121 thereof. Preferably, the combination surface 12 can be formed with the engagement assembly 122 including an engagement block 122a and an engagement groove 122b, and the engagement block 122a and the engagement groove 122b are disposed correspondingly in position to each other. The at least two partial chainring can be engaged with each other by the engagement assembly 122 thereof. For this reason, the shapes of the first partial chainring 10a and the second partial chainring 10b can be the same, so as to decrease manufacturing cost. The first and second partial chainrings 10a and 10b can be combined with each other by the engagement block 122a and the engagement groove 122b corresponding thereto, so as to increase the combinational strength. Preferably, the combination surface 12 includes a semicircular groove 124 formed on an end surface thereof, and when the first and second partial chainrings 10a and 10b are assembled with each other, a dowel pin 125 can be placed into the semicircular groove 124 to constraint the axial displacement of the first and second partial chainrings 10a and 10b.

[0035] Preferably, the gears 11 of the first and second partial chainrings 10a and 10b can be parallel gears. When the first and second partial chainrings 10a and 10b are combined as a chainring 10, the gears 11 are also combined as a circular gear; in this embodiment, the gear 11 is an outer gear, but the present disclosure is not limited thereto.

[0036] The chainring 10 can be made by stronger material such as metal or engineering plastics, and preferably, the chainring 10 can be made by nylon 66 (PA polyamide) added with glass fiber, and such material has excellent heat resistance, self-extinguishing property, and wearing resistance; furthermore, such material can be added with metal such as lead, to increase material strength.

[0037] Preferably, the assembly plate 13 can be disposed outside the gear 11, and the assembly plate 13 is configured to combine with the door leaf 71 of the rolling door assembly 70. In this embodiment, the assembly plate 13 is provided with several assembly holes 14, for example, there are 22 assembly holes 14, as shown in figures. The assembly holes can be in cooperation with the sizes and the distances of most of the convex parts 711 and the concave parts 712 of the door leaf 71, but the present disclosure is not limited thereto. The assembly hole 14 can be formed with a recessed groove 141.

[0038] The at least one drive block 20 includes an end combined with the assembly plate 13 of the chainring 10, and other end configured to combine with the door leaf 71 of the rolling door assembly 70 to be assembled. After being formed integrally, the chainring 10 and the door leaf 71 can be driven to rotate by each other. Please refer to FIG. 4. In this embodiment, the drive block 20 includes a drive part 21, a through hole 22, a neck part 23 and a stop plate 24. Preferably, the through hole 22 is formed with a counterbore 221 on a surface thereof. Please refer back to FIG. 2. While being assembled, at least one drive block 20 is inserted through the selected assembly hole 14 which preferably corresponds to the concave part 712 of the door leaf 71, so that the drive block 20 can be received in the concave part 712 to not interfere the rolling action of the door leaf 71, and can form the stop effect with a side wall (not shown in figures) of the concave part 712, so as to enhance the fixing effect. The drive block 20 can be rotated sideways to pass through the assembly hole 14. Please refer to FIG. 3. After the drive block 20 is inserted through the selected assembly hole 14, the drive block 20 is rotated by 90 degrees to engage the neck part 23 thereof with the assembly hole 14; at the same time, the stop plate 24 is placed in the recessed groove 141; finally, the drive part 21 can be locked with the door leaf 71 of the rolling door assembly 70 by the screw 15. Preferably, the drive part 21 comprises a counterbore 221, and the head part of the screw 15 is disposed in the counterbore 221, and the drive part 21 is disposed in the concave part 712 of the door leaf 71. Preferably, during assembly process, the door leaf 71 can be released completely to expose the be-to-combined concave part 712 out, so as to facilitate to assemble the drive block 20 with the be-to-combined concave part 712.

[0039] The door leaf 71 of the rolling door assembly 70 is wound on a rewinder wheel 72 which is usually not circular. The most inner round of the door leaf 71 wound on the rewinder wheel 72 is in the involute shape or the scroll line shape, and the multiple concave parts 712 are spaced apart from the center of the rewinder wheel 72 by different distances; preferably, the assembly hole 14 can be long circular, so that the drive block 20 can be moved in the assembly hole 14 to correspond in position to the concave parts 712.

[0040] The electric machine assembly 30 provides electric power, and includes a power motor (not shown in figures) configured to drive a driving gear 33 to rotate, the driving gear 33 is engaged with the gear 11 of the chainring 10, and the power motor drives rotation of the chainring 10 through the driving gear 33, so that the chainring 10 can drive the door leaf 71 of the assembled rolling door assembly 70 to roll.

[0041] The electric machine assembly 30 includes a main machine 31, the main machine 31 includes the power motor, the control circuit, the reducer gear and switch mechanism for switching between the automatic transmission mode and the manual mode. The main machine 31 includes a switch handle 34 extended outwardly, and the switch handle 34 can be pulled to clutch the power motor and the output gear. These mechanisms are well-known in the art, so the detailed descriptions are not repeated. After deceleration of the reducer gear, the power motor of the electric machine assembly 30 can transmit power to the driving gear 33. The driving gear 33 is exposed out of the main machine 31 to engage with the gear 10. The main machine 31 includes a connection part 32 extended therefrom, and the connection part 32 includes a thread hole 321 and configured to combine with the support 75 of the rolling door assembly 70. The electric machine assembly 30 can be fastened with the support 75 by inserting the bolt 76 into the hole 751 of the support 75. The main machine 31 can include a retraction part 35 formed around the driving gear 33, and when the electric machine assembly 30 is designed to engage with an inner gear mechanism, the inner gear can pass through the retraction part 35.

[0042] Please refer to FIGs. 5 and 6. FIG. 5 is a perspective assembled view of the first embodiment of the extra rolling door driving device of the present disclosure, and FIG. 6 is a front view of an assembly of the first embodiment of the present disclosure. After assembly is completed, the electric machine assembly 30 is fastened with the support 75 of the rolling door assembly 70 by bolt 76. The driving gear 33 is engaged with the gear 11, so the driving gear 33 can drive the chainring 10 to rotate when the electric machine assembly 30 is operated. The chainring 10 is directly combined with the door leaf 71 by several drive blocks 20, so that the chainring 10 can drive the door leaf 71 to roll or release. In the present disclosure, the chainring 10 is separated into the at least two partial chainrings which can be radially mounted with the shaft 73 of the existing rolling door assembly 70, and then be assembled as the chainring 10. Next, by using several drive blocks 20, the chainring 10 can be combined with the door leaf 71 of the rewinder wheel 72 rolled in the inner round, so as to complete the assembly operation without disassembling the mechanism of the existing rolling door assembly 70. As a result, the assembly operation can be greatly simplified, and the repair operation can be performed more easily.

[0043] Please refer to FIGs. 7 through 9, FIG. 7 is an exploded view of a second embodiment of an extra rolling door driving device of the present disclosure, FIG. 8 is a perspective of an assembly of the second embodiment of the present disclosure, and FIG. 9 is a front view of an assembly of the second embodiment of the present disclosure. In this embodiment, the structure of the rolling door assembly 70 is the same as that of the previous embodiment. In this embodiment, a gear 41 of a chainring 40 is implemented by an inner gear, and the position of the gear of the electric machine assembly 30' is also adjusted in cooperation with the inner gear. In this embodiment, the extra rolling door driving device of the present disclosure includes the chainring 40, the at least one drive block 20 and an electric machine assembly 30'. The chainring, the at least one drive block 20 and the electric machine assembly 30' can be assembled with the existing rolling door assembly 70.

[0044] The rolling door assembly 70 is a rolling-door device without power assistance or the rolling-door device having the broken driving device, and can be one of the existing rolling-door devices, but the present disclosure is not limited to the structure. The structure of the rolling door assembly 70 is the same as the previous embodiments, so the detailed descriptions are not repeated.

[0045] The chainring 40 includes at least two partial chainring to assemble as a circular chainring. In this embodiment, the at least two partial chainrings include a first partial chainring 40a and a second partial chainring 40b. Each of the first and second partial chainrings 40a and 40b includes an assembly plate 43, a gear 41 and a combination surface 42. The first and second partial chainrings 40a and 40b are combined with each other by the combination surface 42, the chainring 40 comprises an avoidance groove 423 configured to avoid the shaft 73 of the rolling door assembly 70 to be assembled, so that the chainring 40 is assembled with the rolling door assembly 70 in a radial direction of the shaft 73. In this embodiment, the first and second partial chainrings 40a and 40b can be assembled as the chainring, which is a circular chainring; and each of the first and second partial chainrings 40a and 40b is a semicircular chainring. Preferably, the chainring 40 can be separated into three partial chainrings or four partial chainrings, and the purpose of separating the chainring 40 into at least two partial chainrings is to radially mount the at least two partial chainrings with the shaft 73 of the rolling door assembly 70, so that the assembly operation can be performed without detaching the main mechanism of the rolling door assembly 70. The avoidance groove 423 is configured to avoid the space occupied by the shaft 73, for this reason, the shape of the avoidance groove is not limited to the semicircular shape shown in figures.

[0046] The first and second partial chainrings 40a and 40b are combined with each other by the combination surface 42, the combination of the first and second partial chainrings 40a and 40b can be implemented by the screw, rivet, glue or assistant fixture. As shown in figure, the combination surface 42 comprises an engagement assembly 422 including an engagement block 422a and an engagement groove 422b which are disposed correspondingly in position to each other. Preferably, the shapes of the first partial chainring 40a and the second partial chainring 40b can be the same, to decrease manufacturing cost; furthermore, the first and second partial chainrings 40a and 40b can be combined with each other by the engagement block 422a and the engagement groove 422b corresponding thereto, so as to increase the combinational strength.

[0047] Preferably, the gear of the first and second partial chainrings 40a and 40b are parallel gear. When the first and second partial chainrings 40a and 40b are combined as a chainring, their gears 41 are also combined as a circular gear; in this embodiment, the gear 41 is the inner gear.

[0048] Preferably, the assembly plate 43 is disposed outside the gear 41 and configured to combine with the door leaf 71 of the rolling door assembly 70. In this embodiment, the assembly plate 43 is provide with several assembly hole 44, and there are 22 assembly holes in cooperation with the sizes and distances of most convex parts 711 and concave parts 712 of the door leaf 71, but the present disclosure is not limited thereto. The assembly hole 44 can be formed with a recessed groove 441.

[0049] The at least one drive block 20 includes an end combined with the assembly plate 43 of the chainring 40, and other end configured to combine with the door leaf 71 of the rolling door assembly 70 to be assembled. The way of combining the drive block 20, the chainring 40 and the door leaf 71 is the same as the previous embodiments, so the detailed description is not repeated.

[0050] The electric machine assembly 30' provides electric power, and includes a power motor (not shown in figures) configured to drive the driving gear 33 to rotate. The driving gear 33 is engaged with the gear 41 of the chainring 40, the power motor drives rotation of the chainring 40 through the driving gear 43, so that the chainring 40 can drive the door leaf 71 of the rolling door assembly 70 to roll.

[0051] The electric machine assembly 30' includes a main machine 31 which includes the power motor, the control circuit, the reducer gear, and the mechanism for switching between the automatic transmission mode and the manual mode. The main machine 31 includes the switch handle 34 extended outwardly, and the switch handle 34 can be pulled to clutch the power motor and the output gear. These mechanisms are well-known in the art, so the detailed descriptions are not repeated. After deceleration of the reducer the gear, the power motor of the electric machine assembly 30' can transmit power to the driving gear 33. The driving gear 33 is exposed out of the main machine 31 to engage with the gear 10, and the electric machine assembly 30' is fastened with the support 75 by inserting the bolt 76 through the hole 751 of the support 75. In the structure of the electric machine assembly 30', the position of the driving gear 33 is slightly adjusted to match with the inner gear of the chainring 40 of this embodiment. The driving gear 33 of the electric machine assembly 30' can drive, through engagement between the driving gear 33 and the gear 41, the chainring 40 to rotate, and the chainring 40 is directly combined with the door leaf 71 by several drive blocks 20, so that the chainring 40 can drive the door leaf 71 to roll or release. The chainring 40 is separated into at least two partial chainring which can be radially mounted with the shaft 73 of the existing rolling door assembly 70, and then be assembled as the chainring 40. By using several drive blocks 20, the chainring 40 can be combined with the door leaf 71 of the rewinder wheel 72 rolled in the inner round, so as to complete the assembly operation without disassembling the mechanism of the existing rolling door assembly 70, so that the assembly operation can be greatly simplified and the repair operation can be performed more easily.

[0052] Please refer to FIGs. 10 and 11. FIG. 10 is an exploded view of a third embodiment of an extra rolling door driving device of the present disclosure, and FIG. 11 is a front view of an assembly of the third embodiment of the extra rolling door driving device of the present disclosure. In this embodiment, the structure of the rolling door assembly 70 is the same as that of the previous embodiment, and the assembly plate 13 of the chainring 10' is not provided with the assembly hole, and the structure of the drive block 50 is modified to cooperate with the combination manner of this embodiment. In this embodiment, the extra rolling door driving device of the present disclosure includes a chainring 10', at least one drive block 50 and an electric machine assembly 30. The chainring 10', the at least one drive block and the electric machine assembly 30 can be assembled with the existing rolling door assembly 70.

[0053] The rolling door assembly 70 is the rolling-door device without power assistance or the rolling-door device having the broken driving device. The rolling door assembly 70 can be one of the existing rolling-door devices, but the present disclosure is not limited to the structure. The detail of the rolling door assembly 70 is the same as that of the previous embodiments, so the detailed description is not repeated.

[0054] The chainring 10’ includes at least two partial chainring to assemble as a circular chainring. In this embodiment, the at least two partial chainring includes the first partial chainring 10a and the second partial chainring 10b, each of the first and second partial chainrings 10a and 10b includes an assembly plate 13, a gear 11 and a combination surface 12, and the first and second partial chainrings 10a and 10b are combined with each other by the combination surfaces 12. The chainring 10' also includes an avoidance groove 123 configured to avoid the shaft 73 of the rolling door assembly 70 to be assembled, so that the chainring 10' can be assembled with the rolling door assembly 70 in a radial direction of the shaft 73. In this embodiment, the first and second partial chainrings 10a and 10b can be assembled as the chainring 10', which is a circular chainring, and each of the first and second partial chainrings 10a and 10b is a semicircular chainring. Preferably, the chainring 10' can be separated into three partial chainrings or four partial chainrings, and the purpose of separating the chainring 10’ into at least two partial chainrings is to radially assemble the at least two partial chainrings with the shaft 73 of the rolling door assembly 70, so that the assembly operation can be performed without detaching the main mechanism of the rolling door assembly 70. The avoidance groove 123 is configured to avoid the space occupied by the shaft 73, and for this reason, the shape of the avoidance groove 123 is not limited to the semicircular shape shown in figures.

[0055] In this embodiment, the way of combining the first and second partial chainrings 10a and 10b is the same as that of the first embodiment, so the detailed description is not repeated. In this embodiment, the gear 11 is the outer gear, but the present disclosure is not limited thereto.

[0056] Preferably, the assembly plate 13 is disposed outside the gear 11 and configured to combine with the door leaf 71 of the rolling door assembly 70. In this embodiment, the assembly plate 13 is a flatness circular plate, and any rigid block can be used to lock the assembly plate 13 with the door leaf 71 by screw. Preferably, the at least one drive block 50 can be used for the combination, and the at least one drive block includes an end combined with the assembly plate 13 of the chainring 10', and the other end configured to combine with the door leaf 71 of the rolling door assembly 70. As a result, after being combined integrally, the chainring 10' and the door leaf 71 can be driven to rotate by each other; in this embodiment, the drive block 50 includes a drive part 51, a through hole 52 and a stop plate 53. Preferably, the drive part 51 and stop plate 53 are in L shape and disposed perpendicularly to each other, the stop plate comprises a combination hole. During the assembly process, the at least one drive block 50 is placed into one of the concave parts 712 of the door leaf 71, and the drive block 50 is received in the concave part 712 and does not interfere the rolling action of the door leaf 71, and further can provide the stop effect with a side wail (not shown in figures) of the concave part 712. Next, the drive part 51 is locked with the door leaf 71 by inserting the screw 15 through the through hole 52; furthermore, the screw 15 is inserted through the assembly plate 13 at an appropriate position to combine with the combination hole 54 of the stop plate 53 of the drive block 50. The at least one drive block is in a L shape including a vertical part and a horizontal part, and the vertical part is locked to the assembly plate 13 by the screw 15, and the horizontal part is locked to the door leaf 71 of the rolling door assembly 70 by the screw 15. Preferably, the several drive blocks 50 can be used to combine the door leaf 71 with the chainring 10' at the positions of the several concave parts 712, so as to increase combinational strength. Preferably, during assembly process, the door leaf 71 can be released completely to expose the to-be-combined concave part 712 out, so that the user can use the screwdriver to drive the screw 15 to assemble the drive block 50 with the desired concave part 712.

[0057] The electric machine assembly 30 provides electric power and includes the power motor (not shown in figured) configured to drive the driving gear 33 to rotate. The driving gear 33 is engaged with the gear 11 of the chainring 10', and the power motor drives rotation of the chainring 10' through the driving gear 33, so that the chainring 10' can drive the door leaf 71 of the rolling door assembly 70 to roll.

[0058] The electric machine assembly 30 includes a main machine 31 including the power motor, the control circuit, the reducer the gear, and the mechanism for switching between the automatic transmission mode and the manual mode. The main machine 31 also includes the switch handle 34 extended outwardly, and the switch handle 34 can be pulled to clutch the power motor and the output gear. Some mechanisms are well-known in the art, and the structure of the electric machine assembly 30 is the same as that of the first embodiment, so the detailed descriptions are not repeated. After deceleration of the reducer the gear, the power motor of the electric machine assembly 30 can transmit power to the driving gear 33, and the driving gear 33 is exposed out of the main machine 31 to engage with the chainring 10'. The main machine 31 includes a connection part 32 extended therefrom, and the connection part 32 includes a thread hole 321 and is configured to combine with the support 75 of the rolling door assembly 70. The electric machine assembly 30 can be fastened with the support 75 by inserting the bolt 76 into the hole 751 of the support 75. The main machine 31 can include a retraction part 35 formed around the driving gear 33, and when the electric machine assembly 30 is designed to engage with an inner gear mechanism, for example, when the gear 11 of this embodiment is replaced by the inner gear, the size of the electric machine assembly 30 can be reduced to match the position of the inner gear, so that the driving gear 33 is located on the inner ring of the inner gear to engage with the inner gear, and the inner gear can pass through the retraction part 35.

[0059] After assembly of this embodiment is completed, the electric machine assembly 30 is fastened with the support 75 of the rolling door assembly 70 by the bolt 76. The driving gear 33 is engaged with the gear 11, so the driving gear 33 can drive the chainring 10' to rotate when the electric machine assembly 30 is operated. The chainring 10' is directly combined with the door leaf 71 by several drive blocks 50, so that the chainring 10' can drive the door leaf 71 to roll or release. In the present disclosure, the chainring 10' is separated into the at least two partial chainrings which can be radially mounted on the shaft 73 of the existing rolling door assembly 70 and then assembled as the chainring 10', and the chainring 10' is then combined with the first round or second round of the door leafs 71 wound on the rewinder wheel 72, by the several drive blocks 50, so as to complete the assembly operation without disassembling the mechanism of the existing rolling door assembly 70. As a result, the assembly operation can be greatly simplified and the repair operation can be performed more easily.

[0060] Please refer to FIGs. 12 through 14. FIG. 12 is a perspective view of an assembly of a fourth embodiment of an extra rolling door driving device of the present disclosure, FIG. 13 is a perspective view of a drive block of the fourth embodiment of the extra rolling door driving device of the present disclosure, and FIG. 14 is a perspective view of an assembly of the fourth embodiment of the extra rolling door driving device of the present disclosure. FIG. 14 also shows the internal structure of the fourth embodiment, after a part of the chassis is removed. In this embodiment, the structure of the rolling door assembly 70 is the same as that of the previous embodiment, the electric machine assembly 80 and the drive block 90 of this embodiment are different from that of the previous embodiments. In this embodiment, the extra rolling door driving device includes a chainring 40, at least one drive block 90 and an electric machine assembly 80. The chainring 40, the at least one drive block 90 and the electric machine assembly 80 can be assembled with the existing rolling door assembly 70.

[0061] The rolling door assembly 70 is the rolling-door device without power assistance or the rolling-door device having the broken driving device, and can be one of the existing rolling-door devices, but the present disclosure is not limited to the structure. The structure of the rolling door assembly 70 is the same as the previous embodiments, so the detailed descriptions are not repeated.

[0062] The chainring 40 includes at least two partial chainring to assemble as a circular chainring. In this embodiment, the at least two partial chainring includes a first partial chainring 40a and a second partial chainring 40b, and each of the first and second partial chainrings 40a and 40b includes an assembly plate 43, a gear 41 and a combination surface 42. Some reference numbers are referred as that shown in other figures. The first and second partial chainrings 40a and 40b are combined with each other by the combination surfaces 42. The chainring 40 comprises an avoidance groove configured to avoid the shaft 73 of the rolling door assembly 70, so that the chainring can be assembled with the rolling door assembly 70 in a radial direction of the shaft 73. In this embodiment, the first and second partial chainrings 40a and 40b can be assembled as the circular chainring, and each of the first and second partial chainrings 40a and 40b is a semicircular chainring. Preferably, the chainring 40 can be separated into three partial chainrings or four partial chainrings, and the purpose of separating the chainring 40 into at least two partial chainrings is to radially assemble the at least two partial chainring with the shaft 73 of the rolling door assembly 70, so that the assembly operation can be performed without detaching the main mechanism of the rolling door assembly 70. The avoidance groove is configured to avoid the space occupied by the shaft 73, and the shape of the avoidance groove is not limited.

[0063] The first and second partial chainrings 40a and 40b are combined with each other by the combination surfaces 42, the combination of the first and second partial chainrings 40a and 40b can be implemented by the screw, rivet, glue or assistant fixture, as shown in figure. The combination surface 42 comprises an engagement assembly 422 which includes the engagement block and the engagement groove matched with each other. The engagement block and the engagement groove are disposed correspondingly in position to each other, so the shapes of the first partial chainring 40a and the second partial chainring 40b can be the same, to decrease manufacturing cost; furthermore, the first and second partial chainrings 40a and 40b are combined with each other by the engagement assemblies 422 corresponding thereto, so as to increase the combinational strength.

[0064] Preferably, the gears 41 of the first and second partial chainrings 10a and 10b are parallel gears, and when the first and second partial chainrings 40a and 40b are combined as a chainring 40, the gears 41 are also combined as a circular gear; in this embodiment, the gear 41 is the inner gear.

[0065] Preferably, the assembly plate 43 is disposed outside the gear 41 and configured to combine with the door leaf 71 of the rolling door assembly 70. In this embodiment, the assembly plate 43 is provided with several assembly holes 44 which can be formed with a recessed groove 441.

[0066] The at least one drive block 90 includes an end combined with the assembly plate 43 of the chainring 40, and other end configured to combine with the door leaf 71 of the rolling door assembly 70. The way of combining the drive block 90, the chainring 40 and the door leaf 71 is similar to the previous embodiments. In this embodiment, the drive block 90 is simplified to be a flat plate, and includes a drive part 91, a stop plate 94, and a neck part 93 connected between the drive part 91 and the stop plate 94. Preferably, the drive part 91 can be formed with at least one through hole 92. The drive block 90 can be locked with the door leaf 71 by inserting the screw into the through hole 92, and the neck part 93 can be engaged with the assembly hole 44, and at the same time, the stop plate 94 is placed in the recessed groove 441, so that the door leaf 71 can be combined with the chainring 40 integrally to rotate simultaneously.

[0067] The electric machine assembly 80 provides electric power and includes a power motor (not shown in figures) configured to drive a driving gear 83 to rotate. The driving gear 83 is engaged with the gear 41 of the chainring 40, and the power motor drives rotation of the chainring 40 through the driving gear 83, so that the chainring 40 can drive the door leaf 71 of the rolling door assembly 70 to roll. The electric machine assembly 80 comprises a switching mechanism (not shown in figures) including a switch handle 84 configured to switch between the manual mode and the electric mode. The switching mechanism comprises a lock 87 configured to prevent the switching mechanism from being switched to the manual mode without authorization, thereby preventing the door leaf 71 from being opened by evil person. The electric machine assembly 80 can include a position sensor 86. Preferably, the position sensor 86 can be a position coding sensor. A passive gear 85 is engaged with the gear 41 and driven by the gear 41 to rotate, and the position sensor 86 is able to sense the state of the door leaf 71. The position sensor 86 is well-known in the art, so the detailed description is not repeated.

[0068] After deceleration of the reducer the gear, the power motor of the electric machine assembly 80 can transmit power to the driving gear. The driving gear 83 is exposed out of the main machine 81 to engage with the gear 41, the electric machine assembly 80 is fastened with the support 75, and the chainring 40 is separated into at least two partial chainring, the at least two partial chainring can be radially mounted with the shaft 73 of the existing rolling door assembly 70, and then be assembled as the chainring 40; next, by using several drive blocks 90, the chainring 40 can be then combined with the inner round of the door leaf 71 wound on the rewinder wheel 72, so as to complete the assembly operation without disassembling the mechanism of the existing rolling door assembly 70. As a result, the assembly operation can be greatly simplified and the repair operation can be performed more easily.

[0069] The present disclosure disclosed herein has been described by means of specific embodiments. However, numerous modifications, variations and enhancements can be made thereto by those skilled in the art without departing from the spirit and scope of the disclosure set forth in the claims.

Claims (11)

1. Claims

   1. An rolling door driving device, comprising: a chainring comprising at least two partial chainrings arranged to assemble as a circular chainring, each of at least two partial chainrings comprising an assembly plate, a gear and a combination surface, and wherein at least two partial chainrings are assembled with each other by the combination surfaces thereof, and the chainring comprises an avoidance groove configured to avoid a shaft of a rolling door assembly to be assembled, so that the chainring is assembled with the rolling door assembly in a radial direction of the shaft; at least one drive block comprising an end combined with the assembly plate of the chainring, and other end configured to combine with a door leaf of the rolling door assembly to be assembled; and an electric machine assembly comprising a power motor configured to drive a driving gear to rotate, wherein the driving gear is engaged with the gear of the chainring, and the power motor drives rotation of the chainring through the driving gear, so that the chainring is able to drive the door leaf of the rolling door assembly to roll.
2. 2. The rolling door driving device according to claim 1, wherein the at least one drive block is in a L shape comprising a vertical part and a horizontal part, and the vertical part is locked to the assembly plate by screw, and the horizontal part is locked to the door leaf of the rolling door assembly by screw.
3. 3. The rolling door driving device according to claim 1 or claim 2, wherein the assembly plate is provided with several assembly holes, and at least one drive block comprises a drive part, a stop plate and a neck part, and after the at least one drive block is inserted through at least one assembly hole, the neck part is engaged with the inserted assembly hole, and the drive part is locked to the door leaf of the rolling door assembly by screw.
4. 4. The rolling door driving device according to claim 3, wherein the drive part comprises a counterbore, the head part of the screw is received in the counterbore, and the drive part is disposed in a concave part of the door leaf.
5. 5. The rolling door driving device according to any preceding claim, wherein the gear is an inner gear or an outer gear.
6. 6. The rolling door driving device according to any preceding claim, wherein each of the at least two partial chainrings comprises an engagement assembly formed on the combination surface thereof, and the engagement assembly comprises an engagement block and an engagement groove, and the at least two partial chainrings are engaged with each other by the engagement assemblies thereof.
7. 7. The rolling door driving device according to claim 6, wherein each of the at least two partial chainrings comprises a semicircular groove formed on the combination surface thereof, and a dowel pin is inserted into the semicircular grooves of the partial chainrings adjacent to each other.
8. 8. The rolling door driving device according to any preceding claim, wherein each of the at least two partial chainrings comprises an combination hole formed on the combination surface thereof, and the partial chainrings adjacent to each other are fastened with each other by inserting the screw through the combination holes thereof.
9. 9. The rolling door driving device according to any preceding claim, wherein the electric machine assembly is locked with the support of the rolling door assembly by a bolt.
10. 10. The rolling door driving device according to claim 9, wherein the electric machine assembly comprises a switching mechanism including a lock and a switch handle configured to switch between a manual mode and an electric mode.
11. 11. The rolling door driving device according to any preceding claim, wherein the driving device is an extra rolling door driving device