CN114829722B

CN114829722B - Emergency pull rod device

Info

Publication number: CN114829722B
Application number: CN202080084965.7A
Authority: CN
Inventors: E·J·奥特吉·奥德里奥佐拉; F·戈尼·乌尔比塔; I·佩纳加里卡诺·伊劳拉
Original assignee: Talleres de Escoriaza SA
Current assignee: Talleres de Escoriaza SA
Priority date: 2019-12-19
Filing date: 2020-12-16
Publication date: 2024-03-29
Anticipated expiration: 2040-12-16
Also published as: EP4080001A1; ES2971758T3; EP4080001C0; MX2022006400A; MA58035B1; EP4080001B1; WO2021123478A1; CN114829722A; PL4080001T3; IL294026A

Abstract

An emergency tie rod apparatus (100) comprising a first support assembly (1) and a second support assembly (1 '), a first arm (2) and a second arm (2') coupled to the first support assembly (1) and the second support assembly (1 '), respectively, by means of an operating shaft, and a tie rod (3) coupled to the first arm (2) and the second arm (2'). The first arm (2) and the second arm (2 ') are selected from a plurality of pairs of arms (2, 2 ') configured to have different inclinations in the emergency pull rod device (100) with respect to the front surface (104) of the door (101) in a standby state of the emergency pull rod device (100), in which the pull rod (3) is not pushed, the different inclinations being obtained by varying the angular orientation of the operating shaft with respect to the arms (2, 2 ').

Description

Emergency pull rod device

Technical Field

The present invention relates to an emergency bar (panic bar) device for a door.

Background

Emergency pull rod arrangements arranged in doors are known. EP2820209B1 discloses a mechanism for doors, windows or the like having an operating handle in the form of a pull rod, wherein a door leaf is mounted on a fixed frame. The mechanism includes a bearing means on which the tie rod is supported, a lock having a locking mechanism, and a connecting means for connecting the lock. The support device includes a support plate configured for securing the support device to the door. The support device also includes a support body having a U-shaped cross-section. The support body has two U-shaped arms protruding from the support plate. Each U-shaped arm includes a support receiver, the support receivers of the two arms being aligned with each other. A support shaft of the tie rod is disposed in each of the support receptacles. The connection means comprise a drive rod attached to the supporting shaft of the pull rod in an anti-rotation manner and, upon rotation, the drive rod pushes the projection of the element rotating about the axis acting on the lock.

Disclosure of Invention

The invention aims to provide an emergency pull rod device.

The emergency pull rod device of the present invention comprises: a first support assembly and a second support assembly configured for securing to a door; a first arm pivotally coupled to the first support assembly at a first end by means of a first operating shaft; a second arm pivotally coupled to the second support assembly at a first end by means of a second operating shaft; and a pull rod coupled to the second end of the first arm and the second end of the second arm such that when the pull rod is pushed, the pull rod, the first arm, and the second arm pivot relative to the support assembly.

The support assembly includes a rotating shaft including a housing for the operating shaft, the rotating shaft configured for rotation with a corresponding arm of the operating shaft and the emergency pull rod apparatus.

The first arm and the second arm are selected from a plurality of pairs of arms configured to have different inclinations with respect to the front surface of the door in the panic stay device in a standby state of the panic stay device in which the stay is not pushed, the different inclinations being obtained by changing the angular orientation of the operation shaft with respect to the arms.

The fact that the same panic bolt device can be used with different pairs of arms makes it possible to use the same panic bolt device with different locks that are present on the market, so that depending on the nature of the lock with which the panic bolt device is used and the forces that need to be applied on the pair of arms to open the lock, the pair of arms can be chosen such that they have a suitable length and inclination with respect to the front surface of the door.

These and other advantages and features of the present invention will become apparent from the accompanying drawings and the detailed description of the invention.

Drawings

Fig. 1 shows a perspective view of an embodiment of an emergency drawbar arrangement according to the invention.

Fig. 2 shows a perspective view of a first arm to which the operating shaft of the emergency pull rod device of fig. 1 is coupled.

Fig. 3 shows an exploded view of the first support assembly and the first arm of the emergency drawbar apparatus of fig. 1.

Fig. 4 shows a perspective view of the rotary shaft of the emergency pull rod apparatus of fig. 1.

Fig. 5 shows a cross-sectional view of a first support assembly to which the first arm of the emergency pull rod apparatus of fig. 1 is coupled.

Fig. 6 shows a perspective view of a portion of the first support assembly of the emergency drawbar apparatus of fig. 1.

Fig. 7A shows a side view of the emergency pull rod device of fig. 1, wherein a first arm of the first pair of arms is positioned at an inclination angle α, and fig. 7B shows a side view of the emergency pull rod device of fig. 1, wherein a first arm of the second pair of arms is positioned at an inclination angle β.

Fig. 8A and 8B show side views of a first arm and a second arm of the first pair of arms of the emergency drawbar apparatus of fig. 1, wherein the operating shaft is oriented at a first angle.

Fig. 9A and 9B show side views of a first arm and a second arm of a second pair of arms of the emergency drawbar apparatus of fig. 1, wherein the operating shaft is oriented at a second angle.

Fig. 10 shows a side view of the first arm and first support assembly of the emergency drawbar apparatus of fig. 1.

Fig. 11 shows a perspective view of a portion of the first support assembly of the emergency drawbar apparatus of fig. 1.

Fig. 12 shows a perspective view of the lock actuation element of the emergency pull rod apparatus of fig. 1.

Fig. 13 shows a plan view of a part of the first support assembly of the emergency drawbar arrangement of fig. 1, wherein the lock actuating element is in a first standby position.

Fig. 14 shows a perspective view of a portion of the first support assembly of the emergency drawbar apparatus of fig. 1.

Fig. 15 shows a perspective view of the first arm and first support assembly of the emergency drawbar apparatus of fig. 1.

Detailed Description

Fig. 1 to 15 show one embodiment of an emergency pull rod apparatus 100 of the present invention.

The emergency drawbar apparatus 100 of the present invention includes: a first support assembly 1 and a second support assembly 1' configured for fixing to a door 101; a first arm 2 pivotally coupled at a first end to the first support assembly 1 by means of a first operating shaft 81; a second arm 2 'pivotally coupled at a first end to the second support assembly 1' by means of a second operating shaft 81; and a pull rod 3 coupled to the second end of the first arm 2 and the second end of the second arm 2' such that when the pull rod 3 is pushed, the pull rod 3, the first arm 2 and the second arm 2' pivot with respect to the support assembly 1, 1'.

The support assembly 1, 1 'comprises a rotation shaft 21 comprising a housing 22 for the operation shaft 81, the rotation shaft 21 being configured for rotation with the operation shaft 81 and the respective arm 2, 2' of the emergency pull rod apparatus 100.

The first arm 2 and the second arm 2' are selected from a plurality of pairs of arms 2, 2' configured to have different inclinations in the emergency pull rod apparatus 100 with respect to the front surface 104 of the door 101 in a standby state of the emergency pull rod apparatus 100 in which the pull rod 3 is not pushed, the different inclinations being obtained by changing the angular orientation of the operating shaft 81 with respect to the arms 2, 2'.

Fig. 8A and 8B show the arms 2 and 2' of the first pair of arms 2, 2' of the embodiment of the emergency pull rod apparatus 100, wherein the operating shaft 81 is coupled to the arms 2 and 2' in a first angular orientation. In the inactive state, after coupling the arm 2 to the support assembly 1, the arm 2 has an inclination equal to the angle α with respect to the front surface 104 of the door 101, as shown in fig. 7A. In the same way, after coupling the arms 2' to the support assemblies 1', in the inactive condition, the arms 2' have an inclination angle also equal to the angle α with respect to the front surface 104 of the door 101, i.e. once the arms 2, 2' of the first pair of arms are coupled to the respective support assemblies 1, 1', they are both positioned at the same inclination angle α with respect to the front surface of the door 101.

Fig. 9A and 9B show the arms 2 and 2' of the second pair of arms 2, 2' of the embodiment of the emergency pull rod apparatus 100, wherein the operating shaft 81 is coupled to the arms 2 and 2' in a second angular orientation. After coupling the arm 2 to the support assembly 1, in the inactive state, the arm 2 has an inclination equal to the angle β with respect to the front surface 104 of the door 101, as shown in fig. 7B. In the same way, after coupling the arm 2' to the support assembly 1', in the inactive condition, the arm 2' has an inclination with respect to the front surface 104 of the door 101 also equal to the angle β. Thus, after changing the angular orientation of the operating shaft 81 with respect to the arms 2, 2' of the first pair of arms 2, 2' to the second pair of arms 2, 2', it is achieved that the second pair of arms 2, 2' is positioned at a different inclination to the inclination at which the first pair of arms 2, 2' is positioned with respect to the front surface 104 of the door 101. In the same way, the emergency drawbar arrangement 100 of this embodiment can be used with other pairs of arms 2, 2', wherein different inclinations will be obtained when the angular orientation of the operating shaft 81 is varied with respect to the arms 2, 2'.

When the emergency drawbar apparatus 100 is installed, the arm 2 of each pair of arms 2, 2 'is coupled to the bearing assembly 1 from one end of the rotation shaft 21, and the arm 2' of the pair of arms 2, 2 'is coupled to the bearing assembly 1' from the other end of the rotation shaft 21. That is why the angular orientation of the operating shaft 81 with respect to the arm 2 and the angular orientation of the operating shaft 81 with respect to the arm 2 'must be such that the arm 2 and the arm 2' are symmetrical with respect to a symmetry plane which, when both arms 2, 2 'are seen in side view, is located between and at the same distance from both arms 2, 2', as shown in fig. 8A and 8B, or as shown in fig. 9A and 9B.

The fact that the same emergency pull rod apparatus 100 can be used with different pairs of arms 2, 2' makes it possible for the same emergency pull rod apparatus 100 to be used with different locks that are present on the market, so that depending on the nature of the lock with which the emergency pull rod apparatus 100 is used and the forces that need to be exerted on the pair of arms 2, 2' to open the lock, the pair of arms 2, 2' can be chosen such that they have a suitable length and inclination with respect to the front surface 104 of the door 101.

In the emergency drawbar apparatus 100 of this embodiment, the first support assembly 1 will act on a lock mounted on the first side or the second side of the door 101, while the second support assembly 1' will not act on any lock. Thus, in the emergency tie apparatus 100 of this embodiment, the first support assembly 1 acting on the lock comprises a support element 11 comprising a base plate 12 configured for fixing to the front surface 104 of the door 101, a first side plate 13 attached to the base plate 12 on one side of the first side plate 13, and a second side plate 13' attached to the base plate 12 on the opposite side facing the first side plate 13, as shown in fig. 11. Each side plate 13, 13' comprises a hole 14, 14', two holes 14, 14' facing each other, and the rotation shaft 21 is accommodated in the holes 14, 14' of the side plates 13, 13'. The first support assembly 1 comprises at least one pushing element 41 coupled to the rotation shaft 21 and configured for rotation with the rotation shaft 21, the pushing element 41 comprising a protrusion 42, as shown in fig. 10. The first support assembly 1 comprises a lock actuation element 31 coupled to the base plate 12 and configured for rotation about an axis perpendicular to the base plate 12 and acting on the lock, the actuation element 31 comprising a protrusion 32, said protrusion 32 being configured for being pushed by a protrusion 42 of the pushing element 41, thereby causing rotation of said actuation element. The pushing element 41 is configured for defining an angular travel of the emergency pull rod device 3 in cooperation with the standby position stop 121 and the end-of-travel stop 122. The second bearing assembly 1' which does not act on the lock is identical to the first bearing assembly 1 which acts on the lock, and which does not have the lock actuating element 31.

Fig. 12 shows the lock actuation element 31 of this embodiment of the emergency drawbar arrangement 100. The lock actuation member comprises a projection 32 which, in this embodiment, extends radially and outwardly relative to the shaft on which the lock actuation member 31 rotates.

The rotation shaft 21 is configured for rotation with the arms 2, 2 'of the emergency drawbar arrangement 100 such that when the drawbar 3 is pushed, the arms 2, 2' pivot relative to the support assemblies 1, 1 'thereby rotating the rotation shaft 21 coupled with said arms 2, 2'. The rotation shaft 21 is coupled to the pushing member 41. Thus, when the tie rod 3 is pushed, the push member 41 rotates together with the rotation shaft 21, causing the lock actuation member 31 to rotate. In this embodiment, the lock actuation element 31 has a square bore in which a shaft that rotates with the lock actuation element 31 is coupled. The shaft is coupled to a lock arranged in the door 101 such that upon rotation of the lock actuation element 31 the shaft will act on the lock such that the lock will allow the door to open.

As shown in fig. 3, a sleeve 33 is provided between the lock actuation element 31 and the base plate 12 coupled to said lock actuation element 31, such that by means of the use of the sleeve 33, direct contact between the lock actuation element 31 and the base plate 12 is prevented.

As shown in fig. 6, the base plate 12 includes at least one side projection 18 on one side of the base plate 12, and the side projection 18 includes a standby position stopper 121 and an end-of-travel stopper 122. As shown in fig. 10, the pushing element 41 comprises a stand-by protrusion 411 which cooperates with the stand-by position stop 121 in the stand-by state of the emergency pull rod apparatus 100. The pushing element 41 comprises an end-of-travel projection 441 which cooperates with the end-of-travel stop 122 when the user pushes the pull rod 3 and reaches the end of its angular travel.

In the emergency drawbar arrangement 100 of this embodiment, the support assembly 1, 1' comprises at least one additional detachable end-of-travel stop 123 defining a smaller travel than the end-of-travel stop 122, the end-of-travel stop 122 being a fixed stop. This allows the tie rod 3 of the emergency tie rod apparatus 100 to have two different angular strokes, which enables the emergency tie rod apparatus to be used with locks that are available on the market where the tie rod 3 will have a given angular stroke and locks where the tie rod 3 will have different angular strokes. Thus, when the additional detachable end-of-travel stop 123 is removed from the emergency drawbar apparatus 100, the drawbar 3 assumes a certain angular travel and when said additional detachable end-of-travel stop 123 is located in the emergency drawbar apparatus 100, the drawbar 3 assumes a smaller angular travel.

In the emergency drawbar arrangement 100 of this embodiment, the additional detachable end-of-travel stop 123 is a shaft 91 configured for receipt in the facing apertures 17, 17 'arranged in the side plates 13, 13'. Fig. 11 shows the shaft 91 of this embodiment, which is received in the holes 17, 17 'of the side plates 13, 13'. The pushing element 41 comprises an additional end-of-travel projection 431 which cooperates with an additional removable end-of-travel stop 123 when the user pushes the pull rod 3, as shown in fig. 8.

In the emergency tie rod apparatus 100 of this embodiment, the additional detachable end-of-travel stop 123 comprises a recess 92 and the support assembly 1, 1' comprises a resilient projection 73 between the two side plates configured to be received in said recess 92 and fix the axial position of said additional detachable end-of-travel stop 123.

In the emergency drawbar apparatus 100 of this embodiment, the support assembly 1, 1 'comprises a guide element 71 positioned on the base plate 12 and coupled to the side plates 13, 13', the guide element 71 comprising a resilient protrusion 73. The guide element 71 is preferably made of a plastic material. In the case of the first support assembly 1 acting on the lock, the guide element 71 is positioned on the base plate 12 and the lock actuation element 31, the lock actuation element 31 being coupled to the guide element 71.

The guide element 71 of this embodiment of the emergency drawbar apparatus 100 comprises a plurality of flanges 72 and each of the side plates 13, 13 'comprises at least two apertures 16 such that when each flange 72 is introduced into its respective aperture 16, the guide element 71 is coupled to the side plate 13, 13'. The guide element 71 of this embodiment can be seen in fig. 3, wherein the guide element 71 comprises four flanges 72, two flanges 72 on one side of the guide element 72 and two further flanges 72 on the other side. The side plates 13, 13 'of this embodiment can be seen in fig. 12, wherein the first side plate 13 comprises two holes 16 and the second side plate 13' also comprises two holes 16, such that the two flanges of one side of the guiding element 72 are introduced into the two holes 16 of the first side plate 13 and the two flanges of the other side of the guiding element 71 are introduced into the two holes 16 of the second side plate 13', the guiding element 71 is thus coupled to the side plates 13, 13'.

In the emergency tie rod apparatus of this embodiment, the operation shaft 81 includes a fixing element 82 and a pushing device 83 configured to push the fixing element 82 radially out of the operation shaft 81, and the rotation shaft 21 includes a hole 23 in a radial direction on a periphery of the housing 22, the fixing element 82 being configured to be received in the hole 23 and fix the operation shaft 81 to the rotation shaft 21 when the operation shaft 81 is introduced into the housing 22. The housing 22 includes a contour, and the fixing element 82 at least partially protrudes from the contour of the operating shaft 81 when the operating shaft 81 is not introduced into the housing 22. The fixing element 82 is configured such that it is retracted and accommodated inside the operating shaft 81 when it abuts the contour of the housing 22 after the operating shaft 81 is introduced into the housing 22. For this purpose, the portion of the securing element 82 protruding from the operating shaft 81 when this operating shaft is not introduced into the housing 22 preferably has a curved or planar upward surface which allows the securing element 82 to retract after abutment with the contour of the housing 22 during the introduction of the operating shaft 81 into the housing 22. In another embodiment, the portion of the fixing element 82 protruding from the operating shaft 81 may have another shape that allows the fixing element 82 to retract after abutting the contour of the housing 22 during the introduction of the operating shaft 81 into the housing 22. When the fixing element 82 faces the hole 23 during the introduction of the operation shaft 81 into the housing 22, the pushing device 83 pushes the fixing element 82 such that the fixing element 82 again protrudes at least partially from the contour of the operation shaft 81, the portion of the fixing element 82 protruding from the operation shaft 81 being accommodated in the hole 23, thereby fixing the operation shaft 81 to the rotation shaft 21. Fig. 2 shows an embodiment of the first arm 2 of the emergency pull rod apparatus 100, wherein the operating shaft 81 is fixed to said arm 2. In another embodiment, the operating shaft 81 can be fixed to the arm 2 by means of screws, by means of adhesives, by means of welding or by means of using other fixing means known in the art.

The emergency drawbar device 100 of the invention shown in fig. 1 facilitates its installation on the door 101, since the arms do not need to be screwed to the corresponding support assembly 1, 1' to be fixed, but it is sufficient to insert the arms until the fixing element 82 is fixed in the hole 23 of the housing 22 of the rotating shaft 21.

In this embodiment of the emergency drawbar apparatus 100, the housing of the rotary shaft 21 and the operating shaft 81 have a cross section configured such that the operating shaft 81 can be introduced into the housing 22 in a single position. In view of the fact that there is only one possible position in which the operating shaft 81 can be introduced into the housing 22, this thereby prevents the person responsible for fixing the arm 2, 2' to the support assembly 1, 1' from incorrectly fixing the arm 2, 2'.

In this embodiment of the emergency drawbar apparatus 100, the housing 22 of the rotary shaft 21 and the operating shaft 81 are of a regular polygon in cross section, with a bevel 84 in one of the vertices of the polygon, as shown in fig. 1 and 4.

In this embodiment of the emergency pull rod apparatus 100, the rotary shaft 21 comprises an additional hole 23 'in the radial direction on the periphery of the housing 22, which is symmetrical to the hole 23 with respect to a plane perpendicular to the longitudinal axis of the rotary shaft 21 at the midpoint of said rotary shaft 21, such that the fixing element 82 is received in the hole 23 when the operating shaft 81 is introduced into the rotary shaft 21 from the first end of the rotary shaft 21, and the fixing element 82 is received in the additional hole 23' when the operating shaft 81 is introduced into the rotary shaft 21 from the second end of the rotary shaft 21. The arms 2, 2 'may be introduced into a first end of the rotation shaft 21 or into a second end of the rotation shaft 21, which enables to fix the support assembly 1, 1' on the first side or the second side of the door 101. Furthermore, the emergency pull rod apparatus 100 of this embodiment prevents a person responsible for fixing the arm 2, 2' to the support assembly 1, 1' from attempting to incorrectly fix the arm 2, 2', i.e., attempt to fix the arm 2, 2' in the support assembly 1, 1' that does not correspond to the arm. Since the cross section of the operation shaft 81 is a regular polygon having a slope 84 in one of the vertices of the polygon, in the case of fixing the arm 2 to the support assembly 1', i.e., to an incorrect support assembly, the arm 2 is fixed at an inclination which appears to be incorrect at a glance. Fig. 5 shows a sectional view of this embodiment of the emergency pull rod apparatus 100, wherein the arm 2 has been introduced into the first end of the rotation shaft 21, the fixing element 82 of the operating shaft 81 being accommodated in the hole 23.

As shown in fig. 5, in this embodiment of the emergency drawbar apparatus 100, the securing element 82 is a pin.

In this embodiment of the emergency drawbar apparatus 100, the pushing means 83 is a spring, as shown in fig. 5.

In this embodiment of the emergency drawbar apparatus 100, the holes 23 in the radial direction on the periphery of the housing 22 are through holes. In fig. 5 it can be observed that in this embodiment the hole 23 communicates the housing 22 of the rotating shaft 21 with the outer surface of said rotating shaft 21.

In this embodiment of the emergency drawbar apparatus 100, if the protrusion 32 of the lock actuation element 31 is arranged in the first angular position in the standby state, the protrusion 32 is pushed by the protrusion 42 of the push element 41, the lock actuation element 31 rotates in one direction, and if the protrusion 32 is arranged in the second angular position, the protrusion is pushed by the protrusion 42 'of the additional push element 41', the lock actuation element 31 rotates in the opposite direction.

In the inactive state, the lock actuation element 31 of this embodiment of the emergency drawbar arrangement 100 comprises a first inactive position, in which the protrusion 32 of the lock actuation element 31 is arranged in the first angular position, and a second inactive position, in which the protrusion 32 of the lock actuation element 31 is arranged in the second angular position. When the lock actuation member 31 is arranged in the first standby position and the pull rod 3 is pushed, the pushing member 41 pushes the protrusion 32 of the lock actuation member 31, causing the lock actuation member 31 to rotate in one direction, and when the lock actuation member 31 is arranged in the second standby position and the pull rod 3 is pushed, the additional pushing member 41' pushes the protrusion 32 of the lock actuation member 31, causing the lock actuation member 31 to rotate in the opposite direction.

In this embodiment of the emergency drawbar apparatus 100, the protrusion 32 comprises a first contact surface 321 and a second contact surface 322, such that when the lock actuation element 31 is in the first standby position and the drawbar 3 is pushed, the pushing element 41 pushes the protrusion 32 into contact with the first contact surface 321. In the same way, when the lock actuation element 31 is in the second inactive position and the tie rod 3 is pushed, the additional pushing element 41' pushes the projection 32 into contact with the second contact surface 322. The first standby position and the second standby position of the lock actuation element 31 are positions of the lock actuation element 31 where the tie rod 3 of the emergency tie rod arrangement 100 is not pushed.

Fig. 13 shows a part of the first bearing assembly 1 of this embodiment of the emergency drawbar arrangement 100, wherein the lock actuating element 31 is in a first standby position. Fig. 10 also shows this embodiment, wherein the lock actuation element 31 is in the first, ready-to-use position, such that when the pull rod 3 is pushed, the pushing element 41 pushes the protrusion 32 of the lock actuation element 31, causing the lock actuation element 31 to rotate in one direction, for which purpose the pushing element 41 will be in contact with the first contact surface 321.

The first support assembly 1 of this embodiment is configured for being interchangeably arranged on the first side or the second side of the door 101 such that when the lock is arranged on the first side of the door 101, the lock actuation element 31 of the first support assembly 1 acting on the lock will be arranged in the first position to be used shown in fig. 10 such that when the pull rod 3 is pushed, the push element 41 will push the protrusion 32 of the lock actuation element into contact with the contact surface 321, thereby rotating the lock actuation element 31 in one direction, in a clockwise direction, thereby acting on the lock and thus opening the door 101. When the lock is arranged on the second side of the door 101, the lock actuation element 31 of the first support assembly 1 acting on the lock will be arranged in the second standby position, such that when the pull rod 3 is pushed, the additional push element 41' will push the protrusion 32 of the lock actuation element 31 into contact with the contact surface 322, thereby rotating the lock actuation element 31 in the opposite direction, i.e. in the counter-clockwise direction, thus acting on the lock and thus opening the door 101.

In this embodiment of the emergency drawbar apparatus 100, the pushing element 41 and the additional pushing element 41' are coupled to the rotation shaft 21 and configured for directly pushing the protrusion 32 of the lock actuation element 31. The rotation shaft 21 comprises four protrusions at each end thereof, and the pushing element 41 and the additional pushing element 41 'each comprise a hole in which the protrusions are coupled, and after being riveted, allows the rotation shaft 21 to be fixed to the pushing element 41 at one end and to the additional pushing element 41' at the other end.

In this embodiment the projection 42 comprises a contact surface 421 such that when the lock actuation member 31 is in the first rest position and the pull rod 3 is pushed, the projection 42 of the push member 41 acting on the first support assembly 1 of the lock directly pushes the projection 32 of the lock actuation member 31, for which purpose the contact surface 421 of the projection 42 of the push member 41 pushes the first contact surface 321 of the lock actuation member 31. In the same way, the projection 42' comprises a contact surface 421' such that when the lock actuation member 31 is in the second standby position and the tie rod 3 is pushed, the projection 42' of the additional push member 41' acting on the first support assembly 1 of the lock directly pushes the projection 32 of the lock actuation member 31, for which purpose the contact surface 421' of the projection 42' of the additional push member 41' pushes the second contact surface 322 of the lock actuation member 31.

The support assembly 1, 1' of this embodiment of the emergency drawbar apparatus 100 is configured for positioning in the same orientation regardless of whether the support assembly is arranged on the first side or the second side of the door 101. Thus, the person responsible for fixing the support assembly 1, 1' to the door 101 does not have to consider whether the support assembly 1, 1' is to be fixed on the first side or the second side of the door 101, considering that the support assembly 1, 1' does not need to rotate or change its position according to the side of the door 101 in which it is to be fixed.

As shown in fig. 13, in the first support assembly 1 of this embodiment, the lock actuation element 31 is arranged centrally between the two side plates 13, 13', the projection 32 of said lock actuation element 31 being arranged close to the first side plate 13 when said lock actuation element 31 is arranged in the first rest position, said projection 32 being arranged close to the second side plate 13' when said lock actuation element 31 is arranged in the second rest position, the pushing element 41 being arranged close to the first side plate 13, and the additional pushing element 41 'being arranged close to the second side plate 13'. Thus, when a person in charge of fixing the first support assembly 1 to the door 101 fixes the first support assembly 1 on the first side of the door 101, the person must take into account that the projection 32 of the lock actuation element 31 will be arranged close to the first side plate 13, and when the person fixes the first support assembly 1 on the second side of the door 101, the person must take into account that the projection 32 of the lock actuation element 31 will be arranged close to the second side plate 13'.

As shown in fig. 13, the push element 41 and the additional push element 41 'of this embodiment of the emergency pull rod device 100 are arranged outside the delimited area between the two side plates 13, 13'.

In the support assembly 1, 1 'of this embodiment of the emergency pull rod apparatus 100, the first side plate 13 and the second side plate 13' are symmetrically arranged with respect to a plane of symmetry parallel to the first side plate 13 and the second side plate 13', which plane of symmetry is located at the same distance from both side plates 13, 13'. Furthermore, the axis on which the lock actuation element 31 rotates is contained in said plane of symmetry, which axis is perpendicular to the base plate 12.

The support assembly 1, 1' of this embodiment of the emergency drawbar apparatus 100 comprises a calibration element 51 configured for coupling to the two side plates 13, 13' such that the two side plates 13, 13' remain parallel to each other and perpendicular to the base plate 12. Since the alignment element 51 is configured to keep the first side plate 13 and the second side plate 13 'parallel to each other, it prevents friction from occurring and thus friction from occurring between the pushing element 41 and the first side plate 13 and between the additional pushing element 41' and the second side plate 13 'when the tie rod 3 is pushed, and thus the pushing element 41 and the additional pushing element 41' rotate.

In order to be able to be coupled to the side plates 13, 13', the calibration element 51 of this embodiment comprises a U-shaped protrusion 52 at each of its ends, each protrusion 52 comprising two bars 54 facing each other and attached to each other by means of an additional bar 56, with a gap 53 between the two bars. Each side plate 13, 13 'comprises a through hole 15, 15' such that the alignment element 51 is introduced through both through holes 15, 15 'and slid in until the side plate 13, 13' abuts the additional bar 56 such that each of the side plates 13, 13 'is accommodated in the gap 53 between the two bars 54 of each U-shaped protrusion 52, the alignment element 51 being thus coupled to both side plates 13, 13'. Fig. 3 shows a calibration element 51 and fig. 6 shows a calibration element 51 coupled to both side plates 13, 13'.

The support assembly of this embodiment of the emergency drawbar apparatus 100 comprises a sleeve 24 coaxial and external with respect to the rotation axis 21, and a spring 61 arranged around the sleeve 24. The spring 61 is configured to return the emergency pull rod apparatus 100 to a standby state. The alignment element 51 comprises a projection 55 on which a spring 61 is held in place, the spring 61 being held in tension so that the alignment element 51 is secured to the side plates 13, 13' by the action of the spring 61. As can be seen in fig. 6, one end of the spring 61 is fixed to the pushing element 41 and the other end of the spring 61 is fixed to the additional pushing element 41 'such that when the pushing element 41 and the additional pushing element 41' are rotated due to the tie rod 3 of the emergency device 100 having been pushed, the spring 61 is subjected to a torsion force such that when said torsion force is lost due to the tie rod 3 no longer being pushed, the spring 61 returns the emergency tie rod device 100 to the standby state. The spring 61 is fixed to the projection 55 of the calibration element 51, pushing the calibration element 51 towards the side plates 13, 13 'so that the additional bar 56 of each U-shaped projection 52 abuts against the side plates 13, 13'.

Claims

1. An emergency tie rod apparatus, the emergency tie rod apparatus comprising:

-a first support assembly (1) and a second support assembly (1') configured for being fixed to a door (101);

-a first arm (2) pivotally coupled at a first end to the first support assembly (1) by means of a first operating shaft (81);

-a second arm (2 ') pivotally coupled at a first end to the second support assembly (1') by means of a second operating shaft (81); and

-a pull rod (3) coupled to the second end of the first arm (2) and the second end of the second arm (2 ') such that when the pull rod (3) is pushed, the pull rod (3), the first arm (2) and the second arm (2 ') pivot with respect to the support assembly (1, 1 '),

the bearing assembly (1, 1 ') comprises a rotation shaft (21) comprising a housing (22) for the operating shaft (81), the rotation shaft (21) being configured for rotation with the operating shaft (81) and the respective arm (2, 2') of the emergency drawbar arrangement (100),

characterized in that the emergency pull rod device further comprises a plurality of pairs of arms configured for having different inclinations in the emergency pull rod device (100) with respect to a front surface (104) of the door (101) in a standby state of the emergency pull rod device (100), in which standby state the pull rod (3) is not pushed, the different inclinations being obtained by changing an angular orientation of the operating shaft (81) with respect to the arms (2, 2 '), the first arm (2) and the second arm (2 ') being selected from the plurality of pairs of arms (2, 2 ').

2. Emergency tie rod apparatus according to claim 1, wherein the first support assembly (1) acting on the lock comprises:

-a support element (11) comprising:

-a base plate (12) configured for being fixed to the front surface (104) of the door (101);

a first side plate (13) attached to the base plate (12) on one side thereof and a second side plate (13 ') attached to the base plate (12) on the opposite side facing the first side plate (13), each side plate (13, 13') comprising an aperture (14, 14 '), two apertures (14, 14') facing each other,

and the rotation shaft (21) is accommodated in the hole (14, 14 ') of the side plate (13, 13');

-at least one pushing element (41) coupled to the rotation shaft (21) and configured for rotation with the rotation shaft (21), the pushing element (41) comprising a protrusion (42); and

a lock actuation element (31) coupled to the base plate (12) and configured for rotation about an axis perpendicular to the base plate (12) and acting on the lock, the lock actuation element (31) comprising a protrusion (32) configured for being pushed by the protrusion (42) of the pushing element (41) causing rotation of the lock actuation element,

the pushing element (41) is designed to delimit an angular travel of the emergency tie rod (3) in cooperation with a stand-by position stop (121) and an end-of-travel stop (122),

and the second support assembly (1') which does not act on the lock is identical to the first support assembly (1) which acts on the lock, except that the lock actuation element (31) is absent.

3. Emergency tie rod arrangement according to claim 2, wherein the support assembly (1, 1') comprises at least one additional detachable end-of-travel stop (123) defining a smaller travel than the end-of-travel stop (122), the end-of-travel stop (122) being a fixed stop.

4. An emergency drawbar apparatus according to claim 3, wherein the additional detachable end-of-travel stop (123) is a shaft (91) configured for being received in facing holes (17, 17 ') arranged in the side plates (13, 13').

5. The emergency tie rod apparatus of claim 4, wherein the additional removable end-of-travel stop (123) comprises a recess (92) and the support assembly (1, 1') comprises a resilient protrusion (73) between the two side plates, the resilient protrusion being configured for being received in the recess (92) and fixing the axial position of the additional removable end-of-travel stop (123).

6. Emergency tie rod arrangement according to claim 5, wherein the support assembly (1, 1 ') comprises a guiding element (71) positioned on the base plate (12) and coupled to the side plates (13, 13'), the guiding element (71) comprising the resilient protrusion (73).

7. Emergency tie rod device according to any of claims 2 to 6, wherein, if in the inactive state the protrusion (32) of the lock actuation element (31) is arranged in a first angular position, the protrusion (32) is pushed by the protrusion (42) of the push element (41), the lock actuation element (31) rotates in one direction, and if the protrusion (32) is arranged in a second angular position, the protrusion (32) is pushed by a protrusion (42 ') of an additional push element (41'), the lock actuation element (31) rotates in a direction opposite to the one direction.

8. The emergency tie device according to any one of claims 2 to 6, comprising a calibration element (51) configured for coupling to both side plates (13, 13 ') such that both side plates (13, 13') remain parallel to each other and perpendicular to the base plate (12).

9. Emergency tie rod device according to claim 1, wherein the operating shaft (81) comprises a fixing element (82) and a pushing device (83) configured for pushing the fixing element (82) radially out of the operating shaft (81), and the rotating shaft (21) comprises a hole (23) in radial direction on the periphery of the housing (22), the fixing element (82) being configured for being received in the hole (23) and for fixing the operating shaft (81) to the rotating shaft (21) when the operating shaft (81) is introduced into the housing (22).

10. Emergency tie rod device according to claim 9, wherein the housing (22) of the rotation shaft (21) and the operating shaft (81) have a cross section configured such that the operating shaft (81) can be introduced into the housing (22) in a single position.

11. The emergency tie rod apparatus of claim 10, wherein the cross-sections of the housing (22) of the rotary shaft (21) and the operating shaft (81) are regular polygons with a bevel (84) in one of the vertices of the polygon.

12. Emergency tie rod device according to any one of claims 9 to 11, wherein the rotation shaft (21) comprises an additional hole (23 ') in the radial direction on the periphery of the housing (22), which is symmetrical to the hole (23) with respect to a plane perpendicular to the longitudinal axis of the rotation shaft (21) at the midpoint of the rotation shaft (21), such that the fixing element (82) is received in the hole (23) when the operation shaft (81) is introduced into the rotation shaft (21) from a first end of the rotation shaft (21), and the fixing element (82) is received in the additional hole (23') when the operation shaft (81) is introduced into the rotation shaft (21) from a second end of the rotation shaft (21).

13. Emergency tie rod arrangement according to any of claims 9 to 11, wherein the securing element (82) is a pin.

14. Emergency tie rod arrangement according to any of claims 9-11, wherein the pushing means (83) is a spring.

15. Emergency tie rod arrangement according to any of claims 9-11, wherein the holes (23) in the radial direction on the periphery of the housing (22) are through holes.