Release device, panic push bar with end cap

Abstract

A door release device, preferably a panic bar, comprising a base profile (22) that can be mounted on a door leaf (11) and an actuating profile (21) that is movably mounted relative to the base profile (22) such that the actuating profile (21) is moved perpendicular to the door leaf (11) when actuated and thereby enters the base profile (22), wherein the base profile (22) and / or the actuating profile (21) form an interior space for receiving electronic components and / or gear components and two end caps (23a, 23b) are provided at the ends for closing the interior space laterally, characterized in that at least one of the end caps (23a, 23b) is attached to the base profile (22) and has a guide surface (31) arranged between the base profile (22) and the actuating profile (21) for bearing the actuating profile (21).wherein the guide surface (31) prevents direct contact between the base profile (22) and the actuating profile (21).

Description

[0001] The invention relates to a release device for a door, preferably a panic bar, according to the features of the preamble of claim 1.

[0002] Such a release device is known from EP 2 439 363 A2. This patent shows a panic push bar with a base profile and an actuating handle movable relative to the base profile. End caps are provided on the ends of the profiles on either side of the panic push bar to seal the ends. Additional plastic elements are attached to the actuating handle to guide it and prevent it from contacting or rubbing against the base profile. The attachment of such additional plastic elements is structurally complex and does not always provide the necessary reliability in practical operation.

[0003] Document DE 20 2009 009 609 U1 shows a panic push bar with an operating handle, which also has two laterally arranged end caps. These end caps are two-part and each has a cast part inside the end cap and an outer sheet metal part. The end cap forms a lateral guide for the operating handle of the panic push bar.

[0004] The object of the present invention is to provide a door release device, preferably a panic bar, which is structurally simple and highly reliable. In particular, operation should be comfortable and quiet.

[0005] This problem is solved according to the invention by a release device having the features of claim 1.

[0006] According to the invention, at least one of the end caps is attached to the base profile and has a guide surface arranged between the base profile and the actuating profile for supporting the actuating profile. This guide surface prevents direct contact between the base profile and the actuating profile. By providing the end cap with a guide surface that prevents direct contact between the base profile and the actuating profile, it is ensured that no contact / friction occurs between the base profile and the actuating profile during actuation, and consequently, no direct friction occurs between these components. In this way, friction that often occurs at this point between the base profile and the actuating profile is prevented, and the actuating forces are reduced overall.

[0007] Direct contact between the two profiles results in an undesirable metal-on-metal friction process. This often causes an unpleasant noise in addition to increased friction.

[0008] In particular, the guide surface is arranged along the longitudinal sides of the base profile and / or the actuating profile. The base profile and the actuating profile extend longitudinally along the door leaf and are mechanically connected to it either horizontally or vertically. Manual actuation of the actuating profile moves it relative to the base profile, specifically towards or towards it. This movement is transmitted via gear elements to a locking device on the door, preferably a door lock, to unlock it. This ensures that, for example, in an emergency or panic situation, the door can be safely unlocked and opened by actuating the actuating profile.Alternatively or additionally, it may also be provided that an electrical contact is actuated via the operating handle and / or an additional emergency button in order to unlock an electrically switchable locking device of the door.

[0009] In one embodiment, at least one end cap can form a lateral stop for the actuating profile by engaging the actuating profile in the end cap and being guided within the end cap against a stop surface. This provides lateral guidance for the actuating profile and ensures its reliable operation, i.e., with minimal lateral play. This lateral guidance via the end cap is provided on both sides, so that the actuating profile is guided at both of its end faces.

[0010] In particular, it can be provided that at least one end cap, preferably both end caps, supports the actuating profile in a floating manner. The floating support of the actuating profile results in a precisely controllable clearance, which on the one hand enables low-friction and reliable actuation of the actuating profile and on the other hand prevents excessive play.

[0011] To provide good protection against injury for the operator, at least one end cap can be designed to cover both one end of the base profile and one end of the actuating profile. The end cap thus covers the ends of both profiles together, creating end-face contact protection and pinch protection.

[0012] To create effective pinch protection that also prevents individual fingers from being trapped when the actuating profile is engaged, the stop surface can be arranged such that the engagement depth of the actuating profile into the at least one end cap is less than or equal to 6 mm, preferably less than or equal to 5.5 mm, or less than or equal to 4 mm, or less than or equal to 3 mm. By limiting the engagement depth of the actuating profile, the depth of the potential pinching edge is reduced to such an extent that it is impossible to grasp a finger into it. Due to this relatively shallow engagement depth, the finger cannot become caught in this edge and therefore will not be pinched there.

[0013] In particular, the at least one end cap may be designed in two parts, comprising an outer cap and an inner cap, with the outer cap completely enclosing the inner cap on at least three sides. For example, the inner cap and / or the outer cap may be attached to the base profile. This attachment of the inner cap and / or outer cap may occur after the connection between the base profile and the outer profile to ensure easy installation of the panic bar. In particular, the position of the inner cap relative to the outer cap may be adjustable. Manufacturing tolerances can thus be easily compensated for by adjusting the position.

[0014] In one embodiment, the inner cap may have a guide surface and a stop surface. In particular, it is provided that the guide surface runs essentially perpendicular to the stop surface.

[0015] In one embodiment, the base profile and the actuating profile may be designed as essentially U-shaped profiles in cross-section. These U-shaped profiles have parallel longitudinal sides along their length, connected at one end by a base and with an opening at the other end. The base of the actuating handle faces the user and serves as a pressure surface for actuating the panic bar.

[0016] In particular, it can be provided that the base profile and the actuating profile are arranged such that the openings of the two U-shaped profiles face each other, with the actuating profile engaging into the interior of the base profile, preferably such that when the actuating profile is actuated, it plunges between the two parallel flanks of the base profile. The open side of the base profile and / or the actuating profile is located opposite the base of the base profile or the actuating profile, respectively.

[0017] In one embodiment, the base profile can be arranged between the inner cap and the outer cap, preferably with the outer cap resting directly against the outside of the base profile and the inner cap resting directly against the inside of the base profile. Preferably, the outer cap encloses the base profile and the inner cap is arranged inside the base profile.

[0018] For example, the guide surface can be arranged on the inside of the U-shaped base profile such that it runs flat from the base profile to the actuating profile. The guide surface is formed on a web molded onto the inner cap, with its outer surface facing the base profile and its opposite inner surface facing the actuating profile. The guide surface is thus located on the longitudinal side of the base profile and acts as a sliding bearing between the base profile and the actuating profile. The distance between the base profile and the actuating profile can be adjusted by changing the thickness of the guide surface. For this purpose, the guide surface at the end cap can, for example, be designed as a web that engages between the base profile and the actuating profile.

[0019] Due to the length of the actuating profile and / or the base profile, and a horizontal mounting, the profile may deflect along its longitudinal axis due to gravity during operation. To prevent contact between the base profile and the actuating profile due to this deflection, the guide surface may be dimensioned to be thicker than the maximum expected deflection of the actuating handle and / or the base profile. To reduce the deflection of the actuating profile, it may also be designed to be bent, particularly crimped, at its ends and / or to have a reinforcing bead.

[0020] In particular, the guide surface is designed to form a sliding bearing for the actuating profile. The actuating profile is guided by the sliding bearing with minimal friction. To improve the bearing of the actuating profile, the guide surface may have a surface with a lower coefficient of friction than that of the outer cap material and / or the actuating profile material; preferably, the guide surface has a friction-reducing coating.

[0021] In a design that is easy to manufacture, it can be provided that the base profile and the actuating profile are made of a metal, preferably of aluminium or of steel, and that the at least one end cap and / or the outer cap and / or the inner cap are made of a plastic or a composite material.

[0022] The range of applications is further expanded by, for example, designing the base profile and / or the actuation profile to be made from a cuttable profile. By cutting the actuation profile and / or the base profile to length, the length of the panic bar can be easily adjusted to the width and / or height of the door. This significantly reduces the number of variants, as it is no longer necessary to stock a separate, suitable version of the panic bar for every door width and / or height encountered in practice.

[0023] To compensate for larger differences in profile length, the base profile can be designed to hold a gear assembly. This assembly comprises a support plate and one or more gear elements. The gear element(s) are connected to the actuating profile to transmit movement of the actuating profile to a door lock for unlocking. The gear assembly provides decoupling between functional components and the profile itself. The dimensions of the gear assembly dictate a certain minimum length. This means that the panic push bar or the actuating profile and / or the base profile must have a length at least equal to the length of the gear assembly so that the gear assembly can be accommodated within the base profile and / or the actuating profile.However, it is easily possible to design the panic push bar with a greater length than the gearbox assembly by cutting the profile to the desired length and inserting the gearbox assembly into this longer profile.

[0024] For example, the length of the gear assembly can be shorter than the length of the base profile and / or the length of the actuating profile, preferably less than 80% or less than 50% of the length of the base profile and / or the actuating profile. This allows for a wide range of applications with a small number of panic bar variants.

[0025] In practice, it is intended that the unlocking device and / or panic push bar according to the invention is used in the area of ​​escape doors in buildings to enable persons inside the building to exit the building in the event of an emergency or panic, even if the corresponding escape doors should be locked via locking devices.

[0026] Further embodiments of the invention are shown in the figures and described below. These show: Fig. 1: A schematic representation of the unlocking device on an emergency exit door in a building Fig. 2: a schematic sectional drawing in the area of ​​an end face of the panic push bar according to the invention Fig. 3: Another schematic representation of one end of the panic push bar with components shown partially openwork.

[0027] Fig. Figure 1 shows a schematic representation of the unlocking device or panic push bar according to the invention. 2 at a door 1 in a building. The door 1 a door leaf 11 open. The door leaf 11 is designed as a left-hinged swing door, which is connected via door hinges 13a and 13b with a door frame 12 It is connected in a pivoting manner. The door may be an escape and / or rescue route door, also known as a panic door. The door hinges 13a and 13b are arranged at intervals along a vertical door pivot axis. The door leaf 11 a mortise lock 16 a latch with which the door leaf can be locked in its closed position.

[0028] On the door leaf 11 The panic bar is mounted on top. 2 , or anti-panic push bar 2 installed. The panic bar2 exhibits a basic profile 22 on, which rests directly on the door profile 11 is fastened, for example, screwed or glued. In the base profile 22 is an activity profile 21 Slidingly mounted. The actuation profile 21 can be directed towards the door leaf 11 to be actuated, i.e., pressed in. This movement is transmitted to the door lock by means of gear elements (not shown). 16 transferred in order to unlock it.

[0029] Such doors 1 In practice, these are used in buildings to secure escape and rescue routes. An escape and rescue route in a building is usually closed off by a door and is normally not intended for unauthorized access. However, in a panic or emergency, access to the door is possible. 1 To make this possible for everyone, this door must 1It must be able to be unlocked safely. This unlocking is done via the operating handle. 21 the panic bar 2 By unlocking the door lock 16 when pressure is applied to the operating handle 21 , can the door lock 16 It can be unlocked at any time, even if many people try to open the door simultaneously in a panic. The pressure built up will then force the door open via the operating handle. 21 Securely unlocked.

[0030] In the Fig. 2 is the panic push bar 2 The panic bar is shown in the area of ​​its frontal end. 2 It has end caps on both sides in the area of ​​its frontal end. 23a and 23b up. As in Fig. 2 shown encompasses an end cap 23a the two overlapping or aligned end faces of the basic profile 22 and the activity profile 21This covers the end faces of the profiles and the panic bar. 2 Closed at the sides. The end caps have a rounded shape.

[0031] The Fig. 3 shows the end cap 23a in a partially openwork design. The end cap 23a It has a two-part construction. It features an inner cap. 25 and an outer cap 24 on. The inner cap 25 is based on the basic profile 22 attached. The outer cap 24 is relative to the inner cap 25 It is adjustable and can be adjusted using a screw, for example to compensate for tolerances. The inner cap 25 forms a lateral stop for the actuation profile 21 out, by attaching it laterally to the surface of the inner cap 25 bumps against it and is guided there in a sliding manner.

[0032] The inner cap 25 It has a stop surface. 32on, with the help of which the engagement depth of the operating handle 21 or the activity profile 21 into the end cap 23a or 23b is determined.

[0033] In the area of ​​the grip of the operating handle 21 into the end cap 23a or 23b There is a potential risk of entrapment during operation. To minimize this risk, the engagement depth of the operating handle is designed to be limited. 21 into the end cap 23a or 23b is limited to a safe value. For example, it is intended that the side stop of the inner cap will be limited. 25 is designed in such a way that the engagement depth of the operating handle 21The maximum thickness is 6 mm, preferably less than or equal to 5.5 mm, and preferably only 3 mm. This ensures that a finger cannot get caught in this potential pinching edge, but is repelled if there is a risk of entrapment.

[0034] Furthermore, the inner cap 25 a guide surface 31 up. The stop surface 32 runs essentially perpendicular to the guide surface 31 and forms a defined side stop for the operating handle 21 out. The guide surface 31 is between the basic profile 22 and the activity profile 21 arranged and separates them from each other. The guide surface 31 is designed as a rectangularly shaped bridge that runs along the side surfaces of the base profile 22 or the activity profile 21It runs and is positioned between the profiles or engages there. Via the guide surface 31 are the two profiles 22 and 21 separated from each other. The strength or thickness of the guide surface. 31 This determines the distance between the base profile 22 and activity profile 21 The thicker the guide surface 31 The more developed the base profile, the greater the distance between the base profile and the base profile. 22 and activity profile 21 .

[0035] The activity profile 21 is within the basic profile 22 It is recorded and is located there using the guide surface 31 Slidingly mounted. The guide surface 31 its inner side lies against the outer side of the operating handle. 21 The guide surface lies on and with its outer side 31 on the inside of the base profile 22 on. The guide surface 31extends lengthwise across the entire range of motion of the operating handle 21 This ensures that the actuation profile and the base profile do not directly touch, regardless of the position of the actuation profile.

[0036] The guide surface 31 It is made of a material with a low coefficient of friction, or has a correspondingly coated surface. For example, the guide surface can be made of a material with a low coefficient of friction. 31 It must be made of a plastic such as Teflon or have a corresponding surface. This reduces the frictional force when the operating handle is actuated. 21 reduced friction and a low-friction gliding of the operating handle 21 This enables functional reliability and improves ease of use. Reference symbol list 1 door 11 door leaves 12 door frames 13a Door hinge 13b Door hinge 16 Door lock 2. Release device / panic push bar 21 Activity profile 22 Basic profile 23a End cap 23b End cap 24 Outer cap 25 inner cap 31 Guide surface 32 Stop surface QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 2439363 A2

[0002] DE 202009009609 U1

[0003]

Claims

[1] Unlocking device for a door, preferably a panic bar, comprising a base profile (22) which can be mounted on a door leaf (11) and an actuating profile (21) which is movably mounted relative to the base profile (22) such that the actuating profile (21) is moved perpendicular to the door leaf (11) when actuated and thereby enters the base profile (22), wherein the base profile (22) and / or the actuating profile (21) form an interior space for receiving electronic components and / or gear components and two end caps (23a, 23b) arranged at the ends are provided for closing the interior space laterally, characterized by, that at least one of the end caps (23a, 23b) is attached to the base profile (22) and has a guide surface (31) arranged between the base profile (22) and the actuating profile (21) for supporting the actuating profile (21), wherein the guide surface (31) prevents direct contact between the base profile (22) and the actuating profile (21). [2] Unlocking device according to claim 1, characterized by , that at least one end cap (23a, 23b) forms a lateral stop for the actuating profile (21) by the actuating profile (21) engaging in the end cap (23a, 23b) and being guided within the end cap (23a, 23b) on a stop surface (32). [3] Unlocking device according to claim 1 or 2, characterized by that at least one end cap, preferably both end caps (23a, 23b), supports the actuating profile (21) in a floating manner. [4] Unlocking device according to one of the preceding claims, characterized by, that at least one end cap (23a, 23b) covers both one end of the base profile (22) and one end of the actuation profile (21). [5] Unlocking device according to one of the preceding claims, characterized by , that the stop surface (32) is arranged such that the engagement depth of the actuating profile (21) in the at least one end cap (23a, 23b) is less than or equal to 6 mm, preferably less than or equal to 5.5 mm, or less than or equal to 4 mm, or less than or equal to 3 mm. [6] Unlocking device according to one of the preceding claims, characterized by , that the at least one end cap (23a, 23b) is formed in two parts and has an outer cap (24) and an inner cap (25), wherein the outer cap (24) completely encloses the inner cap (25) on at least three sides. [7] Unlocking device according to claim 6, characterized by , that the position of the inner cap (25) relative to the outer cap (24) is adjustable. [8] Unlocking device according to one of claims 6 or 7, characterized by that the inner cap (25) has the guide surface (31) and the stop surface (32). [9] Unlocking device according to any of the preceding claims, characterized by that the guide surface (31) is essentially perpendicular to the stop surface (32). [10] Unlocking device according to any of the preceding claims, characterized by , that the basic profile (22) and the actuation profile (21) are designed in cross-section as essentially U-shaped profiles. [11] Unlocking device according to any of the preceding claims, characterized by, that the base profile (22) and the actuating profile (21) are arranged such that the openings of the two U-shaped profiles point towards each other, wherein the actuating profile (21) engages in the interior of the base profile (22), preferably that when the actuating profile (21) is actuated, it plunges between the two parallel flanks of the base profile (22). [12] Unlocking device according to any of the preceding claims, characterized by that the base profile (22) is arranged between the inner cap (25) and the outer cap (24), preferably that the outer cap (24) rests directly against the outside of the base profile (22) and the inner cap (25) rests directly against the inside of the base profile (22). [13] Unlocking device according to any of the preceding claims, characterized by, that the guide surface (31) is arranged on the inside of the U-shaped base profile (22) such that the guide surface (31) runs in a plane from the base profile (22) to the actuating profile (21), wherein the guide surface (31) is formed on a web formed on the inner cap (25), which faces the base profile (22) with its outside side and faces the actuating profile (21) with its opposite inside side. [14] Unlocking device according to any of the preceding claims, characterized by , that the guide surface (31) forms a sliding bearing for the actuating profile (21). [15] Unlocking device according to any one of claims 6 to 14, characterized bythat the guide surface (31) has a surface with a coefficient of friction lower than that of the material of the outer cap (24) and / or the material of the actuating profile (21), preferably that the guide surface (31) has a friction-reducing coating. [16] Unlocking device according to any of the preceding claims, characterized by , that the base profile (22) and the actuating profile (21) are made of a metal, preferably of aluminium or of steel, and that the at least one end cap (23a, 23b) and / or the outer cap (24) and / or the inner cap (25) are made of a plastic or a composite material. [17] Unlocking device according to any of the preceding claims, characterized by that the basic profile (22) and / or the actuation profile (21) is formed from a cuttable profile, or are formed from a profile. [18] Unlocking device according to any of the preceding claims, characterized by, that the base profile (22) holds a gear assembly, wherein the gear assembly comprises a carrier plate and one or more gear elements, and that the gear element(s) is or are connected to the actuating profile (21) to transmit a movement of the actuating profile (21) to a door lock (16) in order to unlock it. [19] Unlocking device according to claim 18, characterized by , that the length of the gear assembly is shorter than the length of the base profile (22) and / or the length of the actuating profile (21), preferably that the length of the gear assembly is less than 80% of the length, or less than 50% of the length of the base profile (22) and / or the actuating profile (21).

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