AU2015200016B1

AU2015200016B1 - Emergency Scrolling Door Opening Device

Info

Publication number: AU2015200016B1
Application number: AU2015200016A
Authority: AU
Inventors: Michael Shih
Original assignee: Chuang Pei Chang; Wu Cheng Yi
Current assignee: Chuang Pei Chang
Priority date: 2015-01-05
Filing date: 2015-01-05
Publication date: 2016-07-28
Anticipated expiration: 2035-01-05

Abstract

An emergency scrolling door opening device includes a body, a pivotal unit and a transmission unit. The pivotal unit is pivotally connected to inside of the body. The transmission unit extends through the body and drives the pivotal unit. The transmission unit has a lock which can be unlocked by using a key so as to allow the transmission unit to drive the pivotal unit and operates the clutch in the scrolling door to disengage the clutch from the motor and the scrolling door, therefore, the scrolling door can be operated manually when no electric power is available.

Description

"EMERGENCY

BACKGROUND OF THE INVENTION 1. Fields of the invention

The present invention relates to an electric scrolling door, and more particularly, to an emergency opening device of an electric scrolling door and the emergency opening device can be operated from inside and outside of the door. 2. Descriptions of Related Art

The conventional electric scrolling door is generally used for a garage door and comprises a motor, a driving member and a door, which is connected with the driving member. The door is Med or expanded by activating the motor to activate the driving member to operate the door. However, the door cannot be opened and closed when there is no electric power supplied. A non-stop power pack is developed which provides electric power to the motor so that the door can still be functioned normally. The conventional non-stop power pack includes a battery unit, which stores electric power when not in use, and the eleetric power in the battery unit is supplied to the motor when needed. Nevertheless^; the battery unit needs to be maintained regularly to keep it in a workable status. If the battery unit fails, the door cannot be opened or dosed. A clutch is fertfrer developed which includes a motor, a driving member connected with the clutch, a clutch connected with the driving member, and a door and control unit comteaed to the clutch. Generally, the control unit is installed an inside of the garage so that when there is no electric power available, fee user can open the door from inside by operating the control unit. However, when in an emergent situation and the User is located outside of the door, there is no way to operate the control unit in the garage. If the control unit is installed at outside of the door, safety issue is concerned.

The present invention intends to provide an emergency opening device which can be operated from inside and outside of the door so as to eliminate the shortcomings mentioned above.

SUMMARY CFTfflllNYENIIO'N

The present invention relates to am emergency scrolling door opening device and comprises a body with a base and a cover which is connected to the base. A pivotal unit his a shaft pviotably connected in the body, and a first member and a second member rare pivotably mounted to the shaft. The first member has a plate extending therefrom, and the second member has a toothed portion and a press portion, which presses on fee plate. A transmission unit has a transmission member, a transmission rod and a gear. The first end of the transmission rod Is connected ίο the transmission member, and the second end of the transmission rod extends through the body and is connected to the gear, which is engaged with the toothed portion.

Preferably* the pivotal unit has a third member, which includes a lever and a contact member. The third member is pviotably connected to the shaft and the contact member presses on the plate. The body has a slot through which the lever extends through.

Preferably, the transmission member has a lock.

Preferably, a wire has a first end extending through the body and |s fixed to the plate. A second end of the wire extends outside of the body. The third member has two positioning holes and the body has a positioning unit so as to position the third member by engaging the positioning unit with one of the positioning holes. The contact member includes a curved top, which has a first rib and a second rib extending therefrom. The wire is able to be pulled and guided between the first and second ribs during operation.

Preferably, the positioning unit includes a recess, a resilient member and a positioning member. The resilient member Is biased between the inner end of the recess and the positioni ng mem her. The positioning member is engaged with one of the positioning holes.

Preferably, the third member has a positioning rod, which is movable and not overly pivoted to aifect or even damage the wire and the clutch.

Preferably, the transmission unit has a casing, which is mounted to the transmission rod. The body has an alarm unit, which has a sound generator,

The primary object pf the present invention is t| provide |h emergency scrolling door opening device which can be sw itched to alow the scrolling door to be operated manually horn outside of the door.

An oilier object of the present invention is to provide an emergency scrolling door opening device wherein the transmission unit has a lock which is unlocked by using a correct key from outside of the door to prevent from unauthorized operation to the emergency scrolling door opening device.

The present invention will become more obvious from the feiowing description when taken in connection with the accompanying drawings, which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.

BRIEF DESCmPTlON

Fig. 1 is a perspective view to show the emergency scrolling door opening device of the present invention;

Fig, 2 is an exploded view of the emergency scrolling door opening device of the present invention;

Fig. 3 is another exploded view of the emergency scrolling door opening device of the present invention;

Fig. 4 is a perspective view to show the second embodiment of the emergency scrolling door opening device of the present invention;

Fig. 5 is an exploded view of the second embodiment of the emergency scrolling door opening device of the present invention;

Fig. 6 is another exploded view of the second embodiment of the emergency scrolling door opening device of the present invention;

Fig. 7 is a side cross sectional view of the second embodiment of lie emergency scrolling door opening device of the present invention;

Fig. 8 shows that the second embodiment of the emergency scrolling door opening device of the present invention is connected with a scrolling door;

Fig. I shows the outside of the scrolling door wherein that the second embodiment of the emergency scrolling door opening device of the present invention is connected with the scrolling door;

Fig. 10 shows the second embodiment of the emergency scrolling door opening device If the present invention, wherein the emergency scrolling door opening device of the present invention has not yet activated;

Fig, 11 shows the second embodiment of the emergency scrolling door opening device of the present invention, wherein the emergency scrolling door opening device of the present invention is activated, and

Fig, 12 shows that an alarm unit is connected with the emergency scrolling door opening device of the present in vention.

DETAILED DESCRIPTION QF THE PREFERRED EMBODIMENT lleferrmg to Figs, 1 to 3, the emergency scrolling door opening device of the present invention comprises a body 1 having a base 11 and a cover 12 which is connected to the base 11. A pivotal unit 2 comprises a shaft 21, a fust member 22 and a second member 21. The shah 21 is pviotably connected in the body 1, and the Irst and second members 21, 23 are pivotably mounted to the shah 21, The first member 22 has a plate 221 extending perpendicular from one side of one end thereof The second member 23 has a curved toothed portion 231 and a press portion 232, which extends from one end of the second member 23 and presses on the plate 221, A transmission unit 3 comprises a transmission member 31, a transmission rod 32 and a gear 33. Ihe first end of the transmission rod 32 is connected to the transmission member 31, and the second end of the transmission rod 32 extends throng the body 1 and is connected to the gear 33 which is engaged with fee toothed portion 231,

As shown in Figs. 4 to 7, a second embodiment is disclosed, wherein the pivotal unit 2 has a third member 24 which includes a lever 141 and a contact member 242. The third member 24 is pviotably connected to the shah 21, and the contact member 242 presses on the plate 22 L The body 1 has a slot 14 through which the lever 241 extends, and the lever 241 Is pivoted within the slot 14, The lever 241 extends out from the body 1 so that the user in the garage operates the lever 241 to press the plate 221 to manually operate the door. The contact: member 242 inclndes a curved top, which has a first rib 2421 and a second rib 2422 extending therefrom. When the wir| 4 is pulled, it is guided between the first and second ribs 2421, 2422 during operation. The third meMber 24 has a positioning rod 243, which is movable and not overly pivoted to afreet or even damage the wire 4 and the clutch 73.

As shown In Figs. I to 11, the fransmission member 31 has a lock 311 which can only he unlocked by using a key 5. A wire 4 has a first end extending through the body 1 and is fixed to the plate 221, and a second end of the wire 4 extends outside of the body 1. The present: invention is frxed to a wall 6, the transmission rod 32 extends through the wall 6 and is connected to the transmission member 31 which is located outside of the door; The other end of the transmission rod 32 extends through the body 1 and is engaged with the gear 33, which is engaged with the toothed portion 231.

As shown in Fig. 4, the scroll mi door 7 has a motor 71, a driving member 72, a eluteh 73 and a door 74, wherein the wire 4 is connected to the clutch 73.

When the electric power is normally supplied, the motor 71 drives the driving member 72 to drive the door 74 via the clutch 73. When the electric power supply tails, and the user is located outside ofthe door 74, he or she uses the key 5 to unlock lock 311 by rotating the transmission member 3 L so that the transmission rod 32 rotates the gear 33, which drives the second member 23. The press portion 232 ofthe second member 23 presses the plate 221 which drives the wire 4 to pull the clutch 73 so that the door 74 is disengaged from the motor 71 and the driving member 72. Therefore, the door 74 can be opened manually. By the lock 311, the user ean use Ike key S t© unlock it so as to prevent unauthorised operation.

The third member 24 has two positioning holes 244. The body 1 has a positioning unit IS. The third member 24 is positioned by engaging the positioning uni IS with one of the positioning holes 244. The positioning unit 15 includes a recess 151, a resilient member 152 and a positioning member 153ϋ The resilient member 152 is biased between the inner end of the recess 151 and the positioning member 153. The positioning member 153 is engaged with one of the positioning holes 244. When the door 74 is manually opened by the third member 24s the lever 241 is positioned by the engagement between the positioning hole 244 and the positioning member 153. The plate 221 does not move back so that the door 74 is not switched to the motor 71 control mode.

Furthermore, the transmission unit 3 has a casing 34, which is mounted to the transmission member 31 and the transmission rod 32 so as to protect the transmission unit 3.

As shown in Fig. 12, the body 1 may basem\. alarm unit 16, which has a sound generator. The alarm unit 16 i$ located in the body 1 and is activated by the pivotal unit 2 to generate alarm sound. When the door 74 is switched to the manually operated mode, the alarm unit 11 is activated to acknowledge the^users in the house or alert people that the electric power is cut.

While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.

Claims

1. An emergency scrolling door opening device comprising; a body having a base and a cover which is connected to the base; a pivotal nnit having a shaft, a first member, a second member and a third member, the shaft is pviotably connected in the body, the first and second members pivotably mounted to the shaft, the first member having a plate extending therefrom, the second member having a toothed portion and a press portion which presses on the plate, the third member including a lever and a contact member, the third member pivotably connected to the shaft, the contact member pressing on the plate, the body having a slot through which the lever extends; a transmission unit having a transmission member, a transmission rod and a gear, a first end of the transmission rod connected to the transmission member; a second end of the transmission rod extending through the body ah! connected to the gear which is engaged with the toothed portion; and a wire having a first end extending through the body and being fixed to the plate, a second end of the wire extending outside of the body; the third member having two positioning holes, the body having a positioning unit, the third member being positioned by engaging the positioning unit with one of the positioning holes, the contact member including a curved top which las a first rib and a second rib extending therefrom, When lie wire is pulled, the wire is guided between the first and second ribs during operation.

2. The device as claimed in claim 1, wherein the transmission member has a lock.

3. The device as claimed in claim 1, wherein the positioning unit includes a recess, a resilient member and a positioning member, the resilient member is biased between an inner end of the recess and the positioning member, the positioning member is engaged with one of tie positioning holes®

4. The device as claimed in claim 1, wherein the transmission unit has a casing which is mounted to the transmission rod, the body has an alarm unit which has a sound generator,