GB2541023A

GB2541023A - Emergency fire escape door lock device

Info

Publication number: GB2541023A
Application number: GB1513960.3A
Authority: GB
Inventors: Chung Chang Chih
Original assignee: Gianni Industries Inc
Current assignee: Gianni Industries Inc
Priority date: 2015-08-07
Filing date: 2015-08-07
Publication date: 2017-02-08
Also published as: GB201513960D0

Abstract

A fire escape door lock device for use with door panel 8 and door frame 9 with a lock mechanism attached to the panel comprising a dead bolt 40 which engages with the frame and locks the door, this is electrically connected to a control device 31 which is in turn electrically connected to a switch 30 disposed in the panel. A press-bar device 1 attached to the door will actuate the switch when depressed and release the lock mechanism via the control device. The device also includes a mechanism allowing the lock to be opened from the exterior side of the door panel. Optionally the press-bar member comprises a cover member (11) is slidably engaged to receptacle 10 with a coupling device which moves towards the receptacle, optionally this cover member actuates a beam (12) towards and selectively actuates the switch. Optionally the coupling device includes a bracket 20 pivotally coupled between the receptacle and cover member to allow the cover member to be moved towards the receptacle. The lock mechanism may optionally include an electro-magnetic device electrically connected to the control device for actuating the dead bolt to lock the door panel to the door frame.

Description

EMERGENCY FIRE ESCAPE DOOR LOCK DEVICE

The invention relates to an emergency fire escape door lock device including an electrical control device for controlling the emergency fire escape door lock device and for allowing the emergency fire escape door lock device to be selectively actuated or operated either inside or outside of the fire escape door.

Various kinds of typical emergency panic exit door or fire escape door lock devices have been developed and provided for controlling the fire escape door, and normally comprise a mechanical structure for controlling or opening or closing the fire escape door.

For example, U.S. Patent No. 3,614,145 to Zawadzki, U.S. Patent No. 3,877,262 to Williams, U.S. Patent No. 4,796,931 to Heid, U.S. Patent No. 5,219,385 to Yeh, U.S. Patent No. 6,009,732 to Haecket, and U.S. Patent No. 6,032,985 to Cutter disclose several of the typical emergency panic exit door or fire escape door lock devices each also comprising a mechanical structure for controlling or opening or closing the fire escape door.

However, normally, the typical emergency panic exit doors or fire escape doors are arranged to be opened or closed or actuated or operated from inside of the fire escape door, but may not be opened or closed or actuated or operated from outside of the fire escape door.

It is accordingly an object of the present invention to provide an emergency fire escape door lock device including an electrical control device for controlling the emergency fire escape door lock device and for allowing the emergency fire escape door lock device to be selectively actuated or operated either inside or outside the fire escape door.

SUMMARY OF THE INVENTION

According to the invention there is provided a fire escape door lock device comprising:- a door panel and a door frame, a lock mechanism attached to the door panel and including a dead bolt extendible out of the door panel for selectively engaging with the door frame and for selectively locking the door panel to the door frame, a control device disposed in the door panel, the lock mechanism being electrically connected to the control device, a first switch disposed in the door panel and electrically connected to the control device, and a press bar device attached to the door panel and coupled to the first switch for selectively actuating the first switch when the press bar device is depressed toward the door panel, and for selectively releasing the lock mechanism with the control device.

The press bar device includes a receptacle attached to the door panel, and a moving cover member slidably engaged onto the receptacle with a coupling device and movable toward the receptacle. The coupling device includes a beam slidably engaged in the receptacle and movable toward the first switch for selectively actuating the first switch when the cover member is moved toward the receptacle.

The coupling device includes a bracket pivotally coupled between the receptacle and the cover member for allowing the cover member to be moved toward the receptacle, and the bracket is pivotally coupled to the beam. The lock mechanism includes an electro-magnetic device electrically connected to the control device for actuating the dead bolt to lock the door panel to the door frame.

The lock mechanism includes a follower pivotally attached to the door panel and disposed close to the dead bolt for selectively moving the dead bolt out of the door panel, an elbow is pivotally attached to the door panel and engaged with the follower, the elbow is located close to the electro-magnetic device for being selectively actuated by the electro-magnetic device to force the follower to move the dead bolt out of the door panel.

The follower is pivotally attached to the door panel with a pivot axle, and the follower includes a free end portion, and the elbow portion includes a groove formed therein for engaging with the free end portion of the follower. The dead bolt includes a tongue pivotally coupled to the dead bolt with a pivot spindle for allowing the tongue to be pivoted relative to the dead bolt. The dead bolt includes a guide pole extended laterally and outwardly therefrom. The receptacle includes a housing disposed beside the receptacle and located close to the door frame, and the housing includes a chamber formed therein for engaging with the lock mechanism. A fire detector may further be provided and electrically connected to the control device for detecting a fire and for sending a detected signal to the control device and for selectively releasing the lock mechanism. An electric power source may further be provided and electrically connected to the control device for energizing the control device.

An outside card reader may further be provided and electrically connected to the control device for controlling the electro-magnetic device. An inside card reader may further be provided and electrically connected to the control device for controlling the electro-magnetic device. A second switch may further be provided and electrically connected to the control device, a safety pin slidably attached to the door panel and disposed close to the second switch for selectively engaging with the door frame and for being selectively depressed and moved by the door frame to depress and actuate the second switch.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan schematic view of an emergency fire escape door lock device; FIG. 2 is another plan schematic view similar to FIG. 1, illustrating the operation of the emergency fire escape door lock device; FIG. 3 is a partial exploded view of the emergency fire escape door lock device; FIG. 4 is another partial exploded view of the emergency fire escape door lock device; FIG. 5 is an enlarged partial perspective view of the emergency fire escape door lock device; FIG. 6 is another enlarged partial perspective view similar to FIG. 5, illustrating the operation of the emergency fire escape door lock device; FIG. 7 is a further enlarged partial perspective view of the emergency fire escape door lock device, in which a portion of the outer housing has been cut off for showing the inner structure of the emergency fire escape door lock device; FIG. 8 is a still further enlarged partial perspective view of the emergency fire escape door lock device; FIG. 9 is a still further enlarged partial perspective view similar to FIG. 8, illustrating the operation of the emergency fire escape door lock device; FIG. 10 is a further partial exploded view of the emergency fire escape door lock device; FIG. 11 is a partial front plan schematic view of the fire escape door lock device; FIG. 12 is a partial top plan schematic view of the fire escape door lock device; and FIGS. 13, 14, 15 are plan schematic views similar to FIGS. 1 and 2, illustrating the operation of the fire escape door lock device.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to the drawings, and initially to FIGS. 1 and 2, an emergency fire escape door lock device in accordance with the present invention comprises a press bar device 1 to be attached or mounted or secured to a door panel 8 for locking or releasing the door panel 8 from a door frame 9 or the like. As shown in FIGS. 1-7, the press bar device 1 includes a container or receptacle 10 attached or mounted or secured to the door panel 8, such as the middle or intermediate portion of the door panel 8, and a moving cover member 11 slidably or movably attached or mounted or engaged onto and connected or coupled to the receptacle 10 with a linking or coupling device 2, and slidable or movable or depressible onto or toward the receptacle 10 by the user, for example. A longitudinal lever or beam 12 is slidably or movably received or engaged in the receptacle 10 or in the door panel 8.

For example, the coupling device 2 includes one or more (such as two) levers or brackets 20 each pivotally or rotatably attached or mounted or coupled to the cover member 11 with a pivot pin 21, and each pivotally or rotatably attached or mounted or coupled to the receptacle 10 with a pivot rod 22 for allowing the cover member 11 to be moved or depressed onto or toward the receptacle 10, and the brackets 20 are each pivotally or rotatably attached or mounted or coupled to the longitudinal beam 12 with a pivot shaft 23 for allowing the longitudinal beam 12 to be selectively slid or moved relative to the receptacle 10 by or with the brackets 20 when the cover member 11 is moved or depressed onto or toward the receptacle 10. As shown in FIGS. 4-7, a spring biasing member 24 is disposed or engaged between the receptacle 10 and the bracket 20 for biasing and forcing or moving the cover member 11 away from the receptacle 10. A switch 30, such as a first or limit switch 30 is disposed or mounted in the receptacle 10 or in the door panel 8 and disposed and arranged or located close to or beside the beam 12 for being selectively depressed or actuated or operated by the beam 12. A logic control module or central processing unit (CPU) or control device 31 is also disposed or mounted in the receptacle 10 and the door panel 8 and electrically connected or coupled to the switch 30 for receiving the control signals from the switch 30, and an electric power source 32 is electrically connected or coupled to the control device 31 for energizing the control device 31, a flame or fire sensor or detector 33 is electrically connected or coupled to the control device 31 for sensing or detecting the flame or fire and for sending or transmitting the detected signals to the control device 31, and one or more (such as two) readers 34, 35, such as card readers 34, 35 are selectively or optionally and electrically connected or coupled to the control device 31 for sending or transmitting the read signals to the control device 31.

As shown in FIGS. 3 and 10, the press bar device 1 or the receptacle 10 includes a housing 14 disposed or mounted beside or on one side of the receptacle 10 and disposed and arranged or located close to or beside the door frame 9, and the housing 14 includes a compartment or chamber 15 formed therein for receiving or engaging with a lock mechanism 4 (FIGS. 1-3, 11, 13-15), and a partition or board 16 and a cap or shield 17 (FIGS. 3, 10) may further be provided and attached or mounted or secured onto the housing 14 for blocking or enclosing or sealing the chamber 15 of the housing 14 and for solidly and stably anchoring or retaining or positioning the lock mechanism 4 within the chamber 15 of the housing 14, and the shield 17 may include a slot 18 and an opening 19 formed therein and communicating with the chamber 15 of the housing 14.

Another switch 36, such as a second or limit switch 36 is also disposed or mounted in the receptacle 10 or in the housing 14 of the receptacle 10 or in the door panel 8 and disposed and arranged or located close to or beside the door frame 9, and a safety pin 37 is slidably attached or mounted or secured to the housing 14 of the receptacle 10, and disposed and arranged or located close to or beside the switch 36, and extendible out through the slot 18 of the shield 17 or of the housing 14 (FIGS. 1, 8-9, 11, 14-15) for selectively contacting or engaging with the door frame 9 (FIGS. 2, 13) and for being selectively depressed or forced or moved by the door frame 9 to depress or actuate or operate the switch 36, and the switch 36 is electrically connected or coupled to the control device 31 for sensing or detecting whether the door panel 8 has been closed to the door frame 9 or not, and for sending or transmitting the detected signals to the control device 31.

As shown in FIGS. 1-2 and 8-15, the lock mechanism 4 includes a dead bolt 40 slidably received or engaged in the chamber 15 of the housing 14 or in the door panel 8, and the dead bolt 40 includes a tongue 41 slidable and extendible out through the opening 19 of the shield 17 or of the housing 14 or the door panel 8 (FIGS. 2, 8-9, 11-13) for selectively engaging into the door frame 9 (FIGS. 2, 13) and for selectively locking the door panel 8 to the door frame 9. The tongue 41 is pivotally or rotatably attached or mounted or coupled to the dead bolt 40 with a pivot spindle 42 for allowing the tongue 41 to be pivoted or rotated relative to the dead bolt 40 (FIG. 12), and the dead bolt 40 may further include a guide pole 43 extended laterally and outwardly therefrom and slidably engaged with the housing 14 for guiding the dead bolt 40 to move or slide relative to the housing 14.

As shown in FIG. 10, one or more spring biasing members 44 may further be provided and disposed or engaged between the housing 14 and the dead bolt 40 for biasing and forcing or moving the tongue 41 of the dead bolt 40 out through the opening 19 of the shield 17 or of the housing 14. As shown in FIGS. 1-2 and 13-15, the door frame 9 may include a cavity 90 formed therein and aligned with the tongue 41 and the dead bolt 40 for selectively receiving or engaging with the tongue 41 and the dead bolt 40, and may include a stop 91 engaged or provided therein and aligned with the safety pin 37 for selectively contacting or engaging with the safety pin 37 (FIGS. 2, 13) and for selectively forcing or moving the safety pin 37 to depress or actuate or operate the switch 36, and the switch 36 may send or transmit the detected signals to the control device 31 which may then control the fire escape door lock device.

The lock mechanism 4 further includes an electro-magnetic device 45 disposed or engaged in the chamber 15 of the housing 14 and electrically connected or coupled to the control device 31 for actuating or operating the dead bolt 40 and/or the tongue 41 to lock the door panel 8 to the door frame 9. As shown in FIGS. 8-10, a follower 46 has an upper portion pivotally or rotatably attached or mounted to the housing 14 or the door panel 8 with a pivot axle 47 and has a lower or free end portion 48, an elbow 50 has a middle portion pivotally or rotatably attached or mounted to the housing 14 or the door panel 8 with a pivot pole 51 and has a groove 52 formed therein for receiving or engaging with the lower portion 48 of the follower 46, or the elbow 50 may include a protrusion 53 extended outwardly therefrom for coupling to the lower portion 48 of the follower 46, and the elbow 50 includes a limb 54 extended downwardly therefrom and located close to or beside the electro-magnetic device 45 for being selectively forced or moved or actuated or operated by the electro-magnetic device 45 (FIGS. 1-2, 13-15)..

In operation, as shown in FIG. 13, when the door panel 8 is locked to the door frame 9, the safety pin 37 is depressed or forced or moved by the door frame 9 to depress or actuate or operate the switch 36, and the switch 36 is electrically connected or coupled to the control device 31 for sending or transmitting the detected signals to the control device 31, and the control device 31 may actuate or operate the electro-magnetic device 45 to pull or attract the limb 54 of the elbow 50 toward the electro-magnetic device 45 and to force and move the follower 46 to engage with the dead bolt 40 and to force and move the dead bolt 40 and the tongue 41 into the cavity 90 of the door frame 9, and thus to lock the door panel 8 to the door frame 9. The follower 46 is disposed and located close to or beside the dead bolt 40 for selectively forcing or moving the dead bolt 40 to move out through the shield 17 or the housing 14 or the door panel 8.

As shown in FIGS. 5-7, when the cover member 11 is depressed or moved onto or toward the receptacle 10. the beam 12 may be moved relative to the receptacle 10 by or with the brackets 20 in order to depress or actuate or operate the switch 30 and thus the control device 31, and the control device 31 may then switch off the electro-magnetic device 45 in order to release the limb 54 of the elbow 50 (FIGS. 1, 14-15), and thus for allowing the door panel 8 to be opened relative to the door frame 9. As shown in FIGS. 1-2 and 13-15, a first or outside card reader 34 is attached or mounted or secured to the outside of the door panel 8 and/or of the door frame 9 and electrically connected or coupled to the control device 31 for sending or transmitting the read signals to the control device 31 and for controlling the electro-magnetic device 45 and thus for allowing the door panel 8 to be opened or controlled relative to the door frame 9 from outside of the door panel 8 by the card holders or by the users.

Selectively or optionally or alternatively, as shown in FIGS. 1 and 2, another or inside card reader 35 may be attached or mounted or secured to the inside of the door panel 8 and/or of the door frame 9 and electrically connected or coupled to the control device 31 for sending or transmitting the read signals to the control device 31 and for controlling the electro-magnetic device 45 and thus for allowing the door panel 8 to be opened relative to the door frame 9 from inside of the door panel 8 by the card holders or by the users. At this moment, the connecting or coupling between the switch 30 and the control device 31 may be switched off, or the control device 31 will not and may not be actuated or operated by the switch 30 and the press bar device 1, and the control device 31 may be arranged to be actuated or operated only by the card reader 35, but not the press bar device 1, from inside of the door panel 8. When the flame or fire detector 33 senses or detects or receives a flame or fire and sends or transmits the detected signals to the control device 31, the control device 31 may switch off the electro-magnetic device 45 to release the limb 54 of the elbow 50 and thus for allowing the door panel 8 to be opened relative to the door frame 9 freely when in an emergency situation.

Accordingly, the fire escape door lock device includes an electrical control device for controlling the emergency fire escape door lock device and for allowing the emergency fire escape door lock device to be selectively actuated or operated either inside or outside the fire escape door.

Claims

CLAIMS:-

1. A fire escape door lock device comprising: a door panel and a door frame, a lock mechanism attached to the door panel and including a dead bolt extendible out of the door panel for selectively engaging with the door frame and for selectively locking the door panel to the door frame, a control device disposed in the door panel, the lock mechanism being electrically connected to the control device, a first switch disposed in the door panel and electrically connected to the control device, and a press bar device attached to the door panel and coupled to the first switch for selectively actuating the first switch when the press bar device is depressed toward the door panel, and for selectively releasing the lock mechanism with the control device.

2. A fire escape door lock device as claimed in claim 1, wherein the press bar device includes a receptacle attached to the door panel, and a moving cover member slidably engaged onto the receptacle with a coupling device and movable toward the receptacle.

3. A fire escape door lock device as claimed in claim 2, wherein the coupling device includes a beam slidably engaged in the receptacle and movable toward the first switch for selectively actuating the first switch when the cover member is moved toward the receptacle.

4. A fire escape door lock device as claimed in claim 3, wherein the coupling device includes a bracket pivotally coupled between the receptacle and the cover member for allowing the cover member to be moved toward the receptacle, and the bracket is pivotally coupled to the beam.

5. A fire escape door lock device as claimed in claim 1, wherein the lock mechanism includes an electro-magnetic device electrically connected to the control device for actuating the dead bolt to lock the door panel to the door frame.

6. A fire escape door lock device as claimed in claim 5, wherein the lock mechanism includes a follower pivotally attached to the door panel and disposed close to the dead bolt for selectively moving the dead bolt out of the door panel, an elbow is pivotally attached to the door panel and engaged with the follower, the elbow is located close to the electro-magnetic device for being selectively actuated by the electro-magnetic device to force the follower to move the dead bolt out of the door panel.

7. A fire escape door lock device as claimed in claim 6, wherein the follower is pivotally attached to the door panel with a pivot axle, and the follower includes a free end portion, and the elbow portion includes a groove formed therein for engaging with the free end portion of the follower.

8. A fire escape door lock device as claimed in claim 1, wherein the dead bolt includes a tongue pivotally coupled to the dead bolt with a pivot spindle for allowing the tongue to be pivoted relative to the dead bolt.

9. A fire escape door lock device as claimed in claim 1, wherein the dead bolt includes a guide pole extended laterally and outwardly therefrom.

10. A fire escape door lock device as claimed in claim 1 further comprising a fire detector electrically connected to the control device for detecting a fire and for sending a detected signal to the control device and for selectively releasing the lock mechanism.

11. A fire escape door lock device as claimed in claim 1 further comprising an outside card reader electrically connected to the control device for controlling the electro-magnetic device.

12. A fire escape door lock device as claimed in claim 1 further comprising an inside card reader electrically connected to the control device for controlling the electro-magnetic device.

13. A fire escape door lock device as claimed in claim 1 further comprising an electric power source electrically connected to the control device for energizing the control device.

14. A fire escape door lock device as claimed in claim 1 further comprising a second switch electrically connected to the control device, a safety pin slidably attached to the door panel and disposed close to the second switch for selectively engaging with the door frame and for being selectively depressed and moved by the door frame to depress and actuate the second switch.

15. A fire escape door lock device as claimed in claim 1, wherein the receptacle includes a housing disposed beside the receptacle and located close to the door frame, and the housing includes a chamber formed therein for engaging with the lock mechanism.

16. A fire escape door lock device substantially as herein described with reference to FIGS. 1-15 of the accompanying drawings.