EP1881138A2 - Panic-opening device - Google Patents
Panic-opening device Download PDFInfo
- Publication number
- EP1881138A2 EP1881138A2 EP07112804A EP07112804A EP1881138A2 EP 1881138 A2 EP1881138 A2 EP 1881138A2 EP 07112804 A EP07112804 A EP 07112804A EP 07112804 A EP07112804 A EP 07112804A EP 1881138 A2 EP1881138 A2 EP 1881138A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- spring latch
- door
- panic
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/10—Locks or fastenings for special use for panic or emergency doors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/10—Locks or fastenings for special use for panic or emergency doors
- E05B65/1046—Panic bars
- E05B65/1053—Panic bars sliding towards and away form the door
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B55/00—Locks in which a sliding latch is used also as a locking bolt
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C1/00—Fastening devices with bolts moving rectilinearly
- E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
- E05C1/12—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
- E05C1/14—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially towards or away from the plane of the wing or frame
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C1/00—Fastening devices with bolts moving rectilinearly
- E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
- E05C1/12—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
- E05C1/16—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially in a plane substantially parallel to the wing or frame
Definitions
- the present invention relates to a panic-opening device.
- panic-opening devices are used for rapid opening of safety doors in places such as supermarkets, public offices etc.
- the current panic-opening devices comprise a spring latch suitable for engaging a respective seat obtained on the doorpost of the safety door and a bar which is moved by the action of the user and is suitable for releasing the spring latch so as to disengage the seat and permit opening of the door.
- said panic-opening devices are used to rapidly evacuate people from a place in the event of fire, for example. It is obvious that in the case of such an event, people crowd towards the safety door often in a state of confusion and therefore there are people who push both the bar and the door.
- the object of the present invention consists in providing a panic-opening device which is free from the above-mentioned drawbacks, i.e. which permits rapid and effective opening of the door on which it is applied even by pushing the safety door on which the panic-opening device is installed.
- a panic-opening device applied to a safety door comprising a first U-shaped body and having a central part with horizontal longitudinal axis parallel to the plane defined by said door and two lateral parts bent square to said central part and fixed to said door, a first of said lateral parts housing inside it a mechanism which determines closing and opening of said door, characterised in that said mechanism comprises:
- the panic-opening device 1 comprises a U-shaped body 2 and has a central part 3 with horizontal longitudinal axis X parallel to the plane defined by the door not illustrated and two end lateral parts 4 and 5 bent square to the central part 3 and fixed to the door not illustrated by means of screws not illustrated.
- the end part 4 has a rear wall 6 fixed to the door, two walls 7, upper and lower respectively, square to the rear wall 6 and supporting a vertical pin 8, and a lateral wall 11 defined on a plane square to the walls 7 and to the rear wall 6.
- a mechanism 12 is installed which determines closing and opening of the door not illustrated. It should be noted that, for a better understanding of the mechanism 12, in figures 1, 2 and 3 the part 4 is drawn as if it were made of transparent material.
- the mechanism 12 comprises:
- the lever 27 is defined by a sheet bent in a U-shape and having:
- the panic-opening device 1 furthermore comprises a control bar 44 supported by the central part 3 and suitable for translating due to the action of the user towards the inside of the part 3 so as to press with its appendix 45, against the action of the spring 32, the appendix 31 towards the appendix 23 thus determining rotation of the lever 27 and permitting opening of the safety door.
- a pin 46 originates from the bar 15 in the direction of the bar 13 but without coming into contact with it; said pin is suitable for coming into contact in a certain operating position of the lever 27 with a section 47 of the second lateral wall 33 of the lever 27.
- a further pin 48 is installed parallel to the pin 8 and suitable for constituting the stroke end to rotation of the lever 27 around the pin 8 since the lower face of the appendix 31 or a section 49 (figure 8) of the walls 33 can rest against the same.
- Figure 4 illustrates the mechanism 12 with the safety door closed.
- Figures 2 and 5 illustrate the mechanism 12 with the safety door closed but with the control bar 44 pushed towards the inside of the central part 3.
- the spring latch 14 By pushing the control bar 44 again or the door itself, the spring latch 14, being free in its movement apart from the counter force of the spring 24 and having a wedge-shaped head, due to the contact that occurs between said head of the spring latch 14 and the walls of the seat 29 which are also triangular-shaped, retracts inside the part 4 causing opening of the safety door.
- Figure 7 illustrates the mechanism 12 with the door open.
- a panic-opening device is provided unlike the devices currently on the market in which, to open the door, a force must be applied to a lever which mechanically determines translation of the main spring latch.
- the pressure on the control bar 44 determines only release of the translation of the spring latch 14 and not its translation. Basically, by pushing the control bar 44 the lever 27 is released from the spring latch 14 so that a further pressure on the control bar 44 or on the door itself determines the opening thereof. It is evident that to open a safety door with the panic-opening device subject of the present invention a reduced force applied on the control bar 44 is sufficient. It should be underlined that the mechanism 12 is simple to produce and, above all, increases the safety level of the door.
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
- The present invention relates to a panic-opening device.
- As is known, panic-opening devices are used for rapid opening of safety doors in places such as supermarkets, public offices etc.. The current panic-opening devices comprise a spring latch suitable for engaging a respective seat obtained on the doorpost of the safety door and a bar which is moved by the action of the user and is suitable for releasing the spring latch so as to disengage the seat and permit opening of the door. It is known that said panic-opening devices are used to rapidly evacuate people from a place in the event of fire, for example. It is obvious that in the case of such an event, people crowd towards the safety door often in a state of confusion and therefore there are people who push both the bar and the door. When the bar and the door are pressed simultaneously a wall of the spring latch rests against a corresponding wall of the above-mentioned seat and this obstructs release of the spring latch from its seat; said release can be obtained by a high force which overcomes the contact between spring latch and seat.
- The object of the present invention consists in providing a panic-opening device which is free from the above-mentioned drawbacks, i.e. which permits rapid and effective opening of the door on which it is applied even by pushing the safety door on which the panic-opening device is installed.
- According to the present invention a panic-opening device is provided applied to a safety door comprising a first U-shaped body and having a central part with horizontal longitudinal axis parallel to the plane defined by said door and two lateral parts bent square to said central part and fixed to said door, a first of said lateral parts housing inside it a mechanism which determines closing and opening of said door,
characterised in that said mechanism comprises: - a first bar which at one first end supports a first spring latch and which moves between a locking position in which said first spring latch on the outside of said first lateral part engages a seat defined in a second body supported by the doorpost of said door and a release position in which said first spring latch is free to disengage from said seat;
- a lever rotating around a first pin between a first position in which with a first appendix it rests against a corresponding appendix of said first spring latch to keep said first spring latch in the locked position and a second position in which said first appendix is disengaged from said appendix of said first spring latch, allowing the latter, by means of a simple pressure on said door, to retract towards the inside of said first lateral part and disengage from said seat; and
- a control bar supported by said central part and suitable, if pushed, for acting with its appendix on said lever to determine the rotation of said lever from the first to the second position.
- The present invention will now be described with reference to the accompanying drawings which illustrate a preferred embodiment thereof and in which:
- figure 1 is a perspective view of a panic-opening device produced according to the precepts of the present invention;
- figures 2 and 3 are plan and lateral views respectively of a part of the panic-opening device of figure 1;
- figures 4, 5 and 6 are perspective views of a mechanism of the panic-opening device of figure 1 in three different operating positions;
- figure 7 is a lateral view with parts removed of the mechanism illustrated in figure 6; and
- figure 8 is a perspective view of an element of the mechanism of figure 6.
- With reference to figure 1, a panic-opening device applied to a safety door not illustrated is indicated overall by 1. The panic-opening device 1 comprises a
U-shaped body 2 and has acentral part 3 with horizontal longitudinal axis X parallel to the plane defined by the door not illustrated and two endlateral parts central part 3 and fixed to the door not illustrated by means of screws not illustrated. Theend part 4 has arear wall 6 fixed to the door, twowalls 7, upper and lower respectively, square to therear wall 6 and supporting avertical pin 8, and alateral wall 11 defined on a plane square to thewalls 7 and to therear wall 6. Inside the part 4 amechanism 12 is installed which determines closing and opening of the door not illustrated. It should be noted that, for a better understanding of themechanism 12, in figures 1, 2 and 3 thepart 4 is drawn as if it were made of transparent material. - With reference to the figures from 2 to 7 the
mechanism 12 comprises: - a
horizontal bar 13 which moves along its own longitudinal axis and having one end which extends, through a slit 19 (figure 3) made in thewall 11, towards the outside of thepart 4 and which supports aspring latch 14; - a
horizontal bar 15 parallel to thebar 13, which moves along its own longitudinal axis and has one end which extends, through a second slit 20 (figure 3) made in thewall 11, towards the outside of thepart 4 and which supports aspring latch 16; - a
bracket 17 inside thepart 4 and having acentral wall 18 in which two throughholes 21 are provided along which thebars end tab 22 bent for fastening by means of screws to therear wall 6 of thepart 4, and atab 23, opposite thetab 22, used for the purposes that will be seen below; - a
helical spring 24 mounted on thebar 13 between thewall 18 and thespring latch 14 and suitable for countering the movement of thespring latch 14 towards thewall 18; - a
helical spring 25 mounted on thebar 15 between thewall 18 and ashoulder 26 obtained on thebar 15 and suitable for countering the movement of thespring latch 16 towards thewall 18; and - a
lever 27 installed in thepart 4 and revolving around thepin 8 between a position in which it retains thespring latch 14 outside thepart 4 and in particular inside aseat 29 defined in abody 30 supported by a doorpost not illustrated of the safety door and a position in which thespring latch 14 is free to run towards thewall 18 against the action of thespring 24. - With reference to the figures 7 and 8, the
lever 27 is defined by a sheet bent in a U-shape and having: - a
wall 28 from which anappendix 31 originates substantially parallel to and overlapping thewall 23 of thebracket 17 and between which a preloadedspring 32 is positioned; - two
walls 33 parallel to each other and square to thewall 28, having a respective throughhole 34 engaged by thepin 8; - an
appendix 35 which extends from arespective wall 33 towards thespring latch 14 and suitable for defining a rebate on acorresponding appendix 36 extending towards the inside of thepart 4 from thespring latch 14; and - an
appendix 37 which extends from afirst wall 33 towards therear wall 6 of thepart 4 and which supports apin 38. - With reference to the figures from 2 to 5, inside the
part 4 the rear part of the latter supports adisc 41 rotating due to the action of ahandle 43 illustrated by a broken line in figure 4 and suitable by means of itsappendix 42 for coming into contact with thepin 38 determining rotation of thelever 27. Both thespring latches control bar 44 supported by thecentral part 3 and suitable for translating due to the action of the user towards the inside of thepart 3 so as to press with itsappendix 45, against the action of thespring 32, theappendix 31 towards theappendix 23 thus determining rotation of thelever 27 and permitting opening of the safety door. - With reference to figures 3 and 7, a
pin 46 originates from thebar 15 in the direction of thebar 13 but without coming into contact with it; said pin is suitable for coming into contact in a certain operating position of thelever 27 with asection 47 of the secondlateral wall 33 of thelever 27. In the part 4 afurther pin 48 is installed parallel to thepin 8 and suitable for constituting the stroke end to rotation of thelever 27 around thepin 8 since the lower face of theappendix 31 or a section 49 (figure 8) of thewalls 33 can rest against the same. - Figure 4 illustrates the
mechanism 12 with the safety door closed. - In this condition:
- the
bar 13 is extracted and with itsspring latch 14 engages theseat 29; - the
bar 15 for contact between itsspring latch 16 and thebody 30 is in a retracted position against the action of thespring 25; - the
pin 46 supported by thebar 15 is at a distance from thesection 47 of thelever 27; and - the
lever 27 due to the action of thespring 32 has itsappendixes 35 located on theappendixes 36 of thespring latch 14, hence the latter is not able to return into thepart 4. - Figures 2 and 5 illustrate the
mechanism 12 with the safety door closed but with thecontrol bar 44 pushed towards the inside of thecentral part 3. - In this condition:
- the
bar 15 is in the position illustrated in the preceding condition; - the
lever 27 due to the action of theappendix 45 is rotated around thepin 8 disengaging theappendixes 35 from theappendixes 36; and - the
bar 13 is in the same position illustrated in the preceding condition but without being blocked in its movement towards thewall 18 of thebracket 17. - By pushing the
control bar 44 again or the door itself, thespring latch 14, being free in its movement apart from the counter force of thespring 24 and having a wedge-shaped head, due to the contact that occurs between said head of thespring latch 14 and the walls of theseat 29 which are also triangular-shaped, retracts inside thepart 4 causing opening of the safety door. - Figure 7 illustrates the
mechanism 12 with the door open. - In this condition:
- the
control bar 44 is not pushed and therefore leaves thelever 27 free to rotate, due to the action of thespring 32, - towards the locking position of the
spring latch 14, a position which it does not reach, as will be indicated; - the
bar 15 is extracted due to the action of thespring 24, hence thespring latch 16 is in the outermost position on thepart 4; - the
pin 46 stops against thesection 47 of thelever 27 preventing its rotation towards the locking position of thespring latch 14. - When the safety door is closed, the
bar 15 retracts due to the contact of thespring latch 16 with thebody 30 allowing thelever 27 to lock thespring latch 14 in theseat 29. With the door closed, a rotation of thehandle 43 determines rotation of thedisc 41 and rotation of thelever 27 from the locking position to the release position of thespring latch 14. - From the above description, the advantages of the present invention are evident.
- In particular a panic-opening device is provided unlike the devices currently on the market in which, to open the door, a force must be applied to a lever which mechanically determines translation of the main spring latch. In the panic-opening device subject of the present invention, the pressure on the
control bar 44 determines only release of the translation of thespring latch 14 and not its translation. Basically, by pushing thecontrol bar 44 thelever 27 is released from thespring latch 14 so that a further pressure on thecontrol bar 44 or on the door itself determines the opening thereof. It is evident that to open a safety door with the panic-opening device subject of the present invention a reduced force applied on thecontrol bar 44 is sufficient. It should be underlined that themechanism 12 is simple to produce and, above all, increases the safety level of the door. - Lastly, it is clear that modifications and variations can be made to the panic-opening device 1 described and illustrated here without departing from the protective scope of the present invention.
Claims (8)
- Panic-opening device applied to a safety door comprising a first U-shaped body (2) and having a central part (3) with horizontal longitudinal axis (X) parallel to the plane defined by said door and two lateral parts (4 and 5) bent square to said central part (3) and fixed to said door, a first (4) of said lateral parts housing inside it a mechanism (12) which determines closing and opening of said door, characterised in that said mechanism (12) comprises:a first bar (13) which at one first end is provided with one first spring latch (14) and which moves between a locking position, in which said first spring latch (14) outside said first lateral part (4) engages a seat (29) defined in a second body (30) supported by the doorpost of said door, and a release position in which said first spring latch (14) is free to disengage from said seat (29);a lever (27) rotating around a first pin (8) between a first position in which with its first appendix (35) it rests against a corresponding appendix (36) of said first spring latch (14) to keep said first spring latch (14) in the locked position, and a second position in which said first appendix (35) is disengaged from said appendix (36) of said first spring latch (14), allowing the latter, by means of a simple pressure on said door, to retract towards the inside of said first lateral part (4) and disengage from said seat (29); anda control bar (44) supported by said central part (3) and suitable, if pushed, for operating, with its appendix (45), said lever (27) to determine the rotation of said lever (27) from the first to the second position.
- Panic-opening device as claimed in claim 1 characterised in that it comprises first spring means (32) suitable for countering rotation of said lever (27) from the first to the second position.
- Panic-opening device as claimed in claim 1 and/or 2 characterised in that it comprises second spring means (24) suitable for countering the movement of said first spring latch (14) towards the inside of said first lateral part (4).
- Panic-opening device as claimed in any one of the preceding claims characterised in that said first spring latch (14) has a wedge-shaped head with triangular section and that said seat (29) has the same conformation.
- Panic-opening device as claimed in any one of the preceding claims characterised in that it comprises a second bar (15) supporting at one end a second spring latch (16) which, when the door is closed, stops with its head against a wall of said second body (30); said second bar (15) having a first retracted position, which occurs with the door closed due to the contact between said second spring latch (16) and said second body (30), and an extracted position which occurs with the door open when there is no contact between said second spring latch (16) and said second body (30), and said second bar (15) having a second pin (46) which extends towards said lever (27) and which, with the door open, i.e. when said second bar (15) is in the extracted position, stops against a first section (47) of said lever (27) to maintain the latter in the above-mentioned second position.
- Panic-opening device as claimed in claim 5 characterised in that it comprises third spring means (25) suitable for countering the movement of said second bar (15) from the extracted position to the retracted position.
- Panic-opening device as claimed in any one of the preceding claims characterised in that it comprises a third pin (48) suitable for constituting a stroke end of the rotation of said lever (27) which has a second section (49) which stops on said third pin (48) when said lever (27) is in the first position and a third section (31) which stops on said third pin (48) when said lever (27) is in the second position.
- Panic-opening device as claimed in any one of the preceding claims characterised in that it comprises a disc (41) rotating due to the action of a handle (43) and suitable, by means of its appendix (42), for coming into contact with a fourth section (38) of said lever (27) to determine rotation of the lever (27) from the first to the second position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO20060540 ITBO20060540A1 (en) | 2006-07-20 | 2006-07-20 | PANIC HANDLE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1881138A2 true EP1881138A2 (en) | 2008-01-23 |
EP1881138A3 EP1881138A3 (en) | 2008-12-24 |
Family
ID=38566785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07112804A Withdrawn EP1881138A3 (en) | 2006-07-20 | 2007-07-19 | Panic-opening device for a door |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1881138A3 (en) |
IT (1) | ITBO20060540A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013189843A (en) * | 2012-02-17 | 2013-09-26 | Miwa Lock Co Ltd | Latch lock |
KR101370517B1 (en) | 2013-03-12 | 2014-03-06 | 주식회사 아이레보 | Anti forced locking assembly for push-pull doorlock |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5219385A (en) | 1990-12-13 | 1993-06-15 | Catwin Industrial Corporation | Lock for fire-escape door |
WO2001025574A2 (en) | 1999-10-04 | 2001-04-12 | Harrow Products, Inc. | Exit door latch assembly |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4083590A (en) * | 1977-02-02 | 1978-04-11 | Adams Rite Manufacturing Co. | Narrow stile panic exit actuator |
-
2006
- 2006-07-20 IT ITBO20060540 patent/ITBO20060540A1/en unknown
-
2007
- 2007-07-19 EP EP07112804A patent/EP1881138A3/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5219385A (en) | 1990-12-13 | 1993-06-15 | Catwin Industrial Corporation | Lock for fire-escape door |
WO2001025574A2 (en) | 1999-10-04 | 2001-04-12 | Harrow Products, Inc. | Exit door latch assembly |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013189843A (en) * | 2012-02-17 | 2013-09-26 | Miwa Lock Co Ltd | Latch lock |
KR101370517B1 (en) | 2013-03-12 | 2014-03-06 | 주식회사 아이레보 | Anti forced locking assembly for push-pull doorlock |
Also Published As
Publication number | Publication date |
---|---|
ITBO20060540A1 (en) | 2008-01-21 |
EP1881138A3 (en) | 2008-12-24 |
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