EP0555633A1 - Door handle fitting - Google Patents

Abstract

A door-handle fitting consists of a handle pin (13) formed by two pin parts (11, 12) of square cross-section, which are connected to one another in a tension-resistant manner, but rotatably relative to one another, by means of a round coupling pin (14) arranged in axial bores (20, 21) complementary therewith, and which are suitable for cooperation with a respective lock-follow-up part (15, 16) of a divided lock follower (17) of a lock of an anti-panic type. Furthermore, the door-handle fitting has two door handles (18, 19) which are each assigned to a pin part (11, 12) and which can be slipped onto the pin parts (11, 12) from outside and be connected to them in a rotationally fixed and axially fixed manner. At least the coupling region (25) inserted in a pin part (11) has a bolt recess (22), into which engages at least one bolt piece (24) which is arranged so as to be radially displaceable in a radial channel (23) of the associated pin part (11) and which is held in engagement with the bolt recess (22) by the door handle (18) slipped onto the respective pin part (11), but, when the door handle (18) is drawn off from the pin part (11), can shift aside radially to such an extent that the associated coupling region (25) of the coupling pin (14) can be drawn axially out of the bore (20) of the associated pin part (11). <IMAGE>

Description

The invention relates to a door handle set according to the preamble of patent claim 1.

Pusher pins with pin parts which can be rotated relative to one another but are axially firmly connected are required in so-called panic fittings. After assembly, the two pin parts engage in rotation in the two parts of a split lock nut, so that when the pin parts are actuated by means of a door handle from the two sides of the door, different functions can be triggered in the lock, which in the event of danger, for example in the event of a fire Meaning. For example, there is a requirement that the door can only be opened from the outside using the lever handle if the bolt of the lock has been removed from the closed position beforehand by means of a key. In the event of danger, however, the door should always be able to be opened from the inside simply by pressing the lever handle, i.e. the bolt must also be removed from the closed position.

A problem with door handle sets of this type is that the handle pin, which consists of three main components, can be assembled with the actuating parts in a simple manner. During assembly, it should be taken into account that not only is it possible to operate the two lock nut parts properly, but also that the actuating part, e.g. a door handle, considerable axial tensile forces can be transmitted to the handle pin without loosening or even loosening of the axially interconnected components.

The aim of the invention is a further lever handle set to create the genus mentioned. In particular, the door handle set should be able to be installed in the simplest way, safely and without the risk of loosening or loosening. All components should be able to be brought into a largely free of play and rattle-free relative position.

To achieve this object, the features of the characterizing part of claim 1 are provided.

In this way, the coupling pin provided with the locking recess and the associated pin part can be locked together only by the fact that the actuating part e.g. the lever handle is pushed onto the pin part which is aligned in a suitable manner with the coupling pin. This is because the inner wall of the actuating part receiving channel, into which the associated pin part of the door handle pin is inserted, presses the locking piece radially inward into the locking recess due to suitable dimensioning, so that the coupling pin and pin part are properly locked together axially. This connection can be provided on both pin parts; however, it is sufficient if it is only present between a pin part and the coupling pin.

In any case, care must be taken to ensure that the coupling pin can rotate in at least one of the two axial bores of the pin parts of the pusher pin.

The features of claim 2 are useful for automatically inserting the insertion depth so that the locking piece and the locking recess are radially aligned when the coupling pin is inserted into the bore of the associated pin part provided with the radial channel.

In an expedient further development according to claim 3 or 4, the stop can be realized by abruptly changing diameters of the axial bore or the coupling area.

In the simplest case, the locking piece according to claim 5 is a ball. For reasons of stability, the locking piece should consist of metal, in particular steel.

In general, it is sufficient if only one locking piece is provided on the circumference of each pin part. For the transmission of greater tensile forces, however, radial channels and locking pieces receiving them can also be arranged on diametrically opposite sides of the pin part. The attachment of several locking pieces distributed over the circumference of the pin part is also possible.

The embodiment according to claim 7 is expedient so that the coupling region of the coupling pin can be rotated relative to the associated pin part even when the locking piece is in engagement with the locking recess. This embodiment also has the advantage that a peripheral alignment is not required when inserting the coupling area into the axial bore of the pin part, because the groove runs all around. In cooperation with the axial stop, assembly can therefore be carried out quickly without the operator paying any attention.

It when the locking piece is held in the radial channel is particularly advantageous. In other words, the locking piece is held captive in the radial channel of the pin part, with a radial degree of freedom that enables the locking piece to come into and out of engagement with the locking recess.

Advantageously, the design according to the invention with locking recess and locking piece is only provided on one pin part of the coupling pin, while the other end is attached according to claims 9 or 10. This attachment must ensure a relative axial fixing of the coupling pin and pin part in any case. Coupling pin and pin part can, however, be rotatable axially relative to one another. It is important that this rotatability exists at least between one of the two pin parts and the coupling pin.

The embodiment according to claim 11 is useful if the locking piece also other functions, e.g. which is to take over a rotary connection between the pin part and the actuating part.

The invention can also be used with advantage in an actuation receiving channel according to claim 12.

The embodiment according to claim 13 advantageously ensures that the associated actuating part, for. B. the door handle, as long as it can not be completely pushed onto the pin part having the locking piece until both pin parts sit properly in the lock nut. The piece of the coupling pin protruding beyond the bolt recess thus represents a security element which forces it to ensure that the pin parts are correctly arranged in the lock nut before the actuating member can be pushed open. In a simple way, a perfect installation can be guaranteed without the fitter's attention. Only when the pin parts are properly seated in the lock nut, does the locking piece with the locking recess in radial alignment, so that the locking piece penetrate into the recess and thus the way for that Postponing the actuator can make it free.

In order to ensure rattle-free storage even with a certain play between the individual components, the embodiment according to claim 14 is useful. The bracing can expediently be brought about by the features of claims 15 or 16.

The invention can thus be implemented particularly advantageously in connection with the features of DE-OS 41 21 770. Because of the radial screw penetrating into the oblique groove of the pusher pin parts, the pusher pin is pulled apart axially, the locking piece, which is preferably designed as a ball, being pressed radially outward against the inner wall of the actuating part, thus achieving a largely free play of the individual parts of the pusher pin.

However, the invention can also be applied to all other types of fastening of the actuating part on the pusher pin.

Fig. 1

einen Axialschnitt einer an einer Tür angebrachten Türdrückergarnitur gemäß vorliegender Erfindung,

Fig. 2

eine vergrößerte teilweise geschnittene Seitenansicht des Drückerstiftes nach Fig. 1 mit den ihn umgebenden Teilen des Türdrückers und der Schloßnuß,

Fig. 3

eine Draufsicht des Drückerstiftes nach Fig. 2 und

Fig. 4

einen Schnitt nach Linie IV-IV in Fig. 2, wobei oberhalb der durch die Mittelachse 37 hindurchgehenden Horizontalebene 38 die Ausführungsform nach Fig. 1 bis 3 und darunter zwei weitere Ausführungsformen wiedergegeben sind.

The invention is described below, for example with reference to the drawing; in this shows:

Fig. 1

3 shows an axial section of a door handle set according to the present invention attached to a door,

Fig. 2

2 shows an enlarged, partially sectioned side view of the handle pin according to FIG. 1 with the parts of the door handle and the lock nut surrounding it,

Fig. 3

a plan view of the pusher pin of FIG. 2 and

Fig. 4

a section along line IV-IV in Fig. 2, the embodiment according to the horizontal plane 38 passing through the central axis 37 1 to 3 and below two further embodiments are shown.

According to Fig. 1 in a door leaf 40 a dashed lock 41 is housed, the lock nut 17 is divided into two parts 15, 16, which are to be operated separately, depending on which of the two lock nut parts 15 or 16 is actuated, different To be able to trigger lock functions. If the lock nut part 15 is e.g. on the inside of a door 40 closing a fire-endangered space and the lock nut part 16 on the outside, it can be provided that the lock nut part 15 actuates both the bolt and the latch of the lock 41 when rotating in the opening direction, while the lock nut part 16 when actuated in Opening direction only pulls in the trap. So it is a so-called panic lever handle set.

The lock nut parts 15, 16 have axially continuous square central openings 42, 42 'through which a pusher pin 13 according to the invention is inserted in order to come into a special rotationally fixed engagement with the lock nut 17. The pusher pin 13 consists of two axially aligned pin parts 11 and 12, which have a square cross section complementary to the central openings 42, 42 ', the pin part 11 only the channel 42' of the lock nut part 15 and the pin part 12 only the channel 42 of the lock nut part 16 enforced.

The pin parts 11, 12 each have axially opposite axial blind bores 20, 21 with a circular cross section, which are applied from opposite sides to a coupling pin 14 with a likewise circular cross section in a sliding fit. A coupling region 26 of the coupling pin 14, which is inserted in the bore 21, is extended by a further Axial retaining means 29 described below with reference to FIG. 2 is held axially fixed in the axial bore 21, but rotatable about the central axis 37 of the arrangement.

On the axially opposite side of the coupling pin 14, a coupling area 25 is provided, which is arranged in the bore 20 of the pin part 11 in a sliding fit and by means of a locking ball 24 arranged in a radial channel 23 of the pin part 11, which radially inside into a circumferential groove 22 serving as a locking recess of the coupling area 25 engages with the pin part 11 axially fixed but rotatably connected. The locking ball 24 is held in engagement with the locking recess 22 by the inner wall of a door handle 18 placed on the pin part 11 with its square receiving channel 35.

A further lever handle 19 is placed on the pin part 12 from the opposite side, which has a receiving channel 36 which is square in cross section.

In the embodiment shown, for example, rosette flanges 43 are attached to the ends of the door handle neck located near the door leaf 40, which rest on the surface of the door leaf 40 from opposite sides. Any other rosette arrangement is also conceivable.

Radial threaded bores 44 are provided in the door handle necks axially away from the rosettes 43, into which radial fastening grub screws 34 are screwed. With their conical tips, the screws 34 engage in axially obliquely inwardly recessing V-grooves 33 in one of the four side surfaces of the pin parts 11 and 12, respectively, in the manner as that in DE-OS 41 21 770 in detail is described. By screwing the screws 34 into the grooves 33 and pressing them against the bottom, the pin parts 11, 12 pulled axially outwards, the door handles 18, 19 being supported either on the rosette 43 on the door leaf 40 or in a manner not shown directly on parts of the lock 41. In this way, a play and rattle-free storage of all components is guaranteed.

If the door handle 18 is actuated, it merely rotates the lock nut part 15, while the lock nut part 16 remains unactuated because a relative rotation takes place between the two pin parts 11, 12. Conversely, the door handle 19 can actuate the lock nut part 16 separately, without the lock nut part 15 also rotating.

In the following figures, the same reference numerals designate corresponding components as in FIG. 1.

According to FIGS. 2 and 3, the ball 24 forming the locking piece is held by radial stops 23 and 46 provided on the radial channel 23 with radial play in the radial channel 23 such that after the lever handle 18 has been removed from the pin part 11, the latter from the coupling pin 14 can be withdrawn axially, the locking ball 24 moving so far outward within the radial channel 23 that it disengages from the locking recess 22 designed as a circumferential groove. By engaging the wall of the door handle bore 35 against the ball 24 in the manner shown in FIGS. 1 and 2, the locking ball 24 is securely held in engagement with the locking recess 22 during normal use. The end stops 45 and 46 can be realized by caulking at the two ends of a straight radial channel 23.

The axial retaining means 29 between the pin part 12 and the coupling area 26 of the coupling pin 14 consist of a circumferential groove 31 in the coupling area 26, two in parallel to each other and perpendicular to a surface 47 of the pin part 12 tangential bores 30 in the pin part 12, which cut the axial bore 21 in the manner shown perpendicular to the longitudinal axis thereof, and in the two tangential bores 30 and the axially aligned circumferential groove 31 with clamping retaining pins 32, whereby the coupling pin 14 and the pin part 12 are held together axially fixed but rotatable relative to each other.

Of particular importance is the subdivision of the axial bore 20 of the pin part 11 into an area 20 'near the lock nut with a larger diameter and an area 20' 'of smaller diameter facing away from the lock nut 17, so that a between the two bore parts 20', 20 '' Ring step 27 running perpendicular to the central axis 34 is formed. Accordingly, the coupling region 25 of the coupling pin 14 is divided into a part 25 'with a larger and a part 25' with a smaller diameter, so that an annular step 28 is also present between these two parts.

The ring steps 28, 27 are arranged axially so that when they lie against one another as shown in FIG. 2, the locking recess 22 is aligned radially with the radial channel 23.

Assembly and disassembly of the lever handle set according to the invention proceed as follows:
First, the pin part 12 is pushed onto the coupling region 26 until the circumferential groove 31 comes into radial alignment with the tangential bores 30. Then the retaining pins are hammered into the tangential bores, which are only so long that they do not protrude from any surface of the pin part 12. The retaining pins are somewhat resilient compressible so that they are clamped in the associated tangential bores 30 after driving.

Then the axially opposite coupling region 25 is pushed into the axial bore 20 of the pin part 11 until the ring steps 27, 28 come into contact with one another. As a result, the radial channel 23 is automatically radially aligned with the circumferential groove 22. In this state, the door handle pin 13 is inserted into the axial channels of the lock nut parts 15, 16 as shown in FIGS. 1 to 3. The pin part 11 thus comes into rotary engagement with the lock nut part 15, the pin part 12 in corresponding rotary engagement with the lock nut part 16.

If the lever handle 18 is now placed axially with its square bore 35 on the pin part 11 with the screw 34 initially unscrewed, the upper inner wall of the square bore 35 in FIGS. 1 and 2 comes into engagement with the locking ball 24 so that it is securely in the locking recess 22 is held.

From the opposite side, when the screw 34 is also unscrewed, the additional lever handle 19 is placed axially on the pin part 12.

Then the screws 34 are then screwed into the sloping inwardly sloping grooves 33, the door handles 18, 19 being pressed against the door leaf 40 or parts of the lock 41 and the two pin parts 11, 12 being pulled apart axially, so that in particular between the pin part 11, the locking ball 24 and the coupling pin 14 there is no more play. By suitably screwing in the screws 34, it can be ensured that there is no excessive rotational friction when the door handles 18, 19 are actuated.

Due to the relative rotatability of the two pin parts 11, 12, which is also maintained during the axial bracing, the lock nut parts 15, 16 can be actuated separately by operating the door handles 18 and 19 separately.

The section lying above the horizontal plane 38 shows the arrangement according to FIG. 2 along the line IV-IV above the central axis 37.

Two further embodiments are illustrated below the horizontal plane 38. The axial bore 35 'in the door handle 18' can then first be produced as a circular bore 35a, from which the corner regions 35b were then worked out by broaching. In this way, part of the circular bore 35a lies opposite the radial channel 23. Accordingly, the radial channel 23 has a larger diameter and contains a locking ball 24 'with a larger diameter so that it can extend in a locking manner between the annular groove 22 and the contour of the circular bore 35a.

Furthermore, the possibility is indicated below the horizontal plane 38 in FIG. 4 to form the locking piece as an elongated plunger 24 ″ which extends in the radial direction and which engages in an axial groove 39 provided outside the circular bore 35a. In this way, the cohesion between the pin part 11 and the surrounding neck of the door handle 18 can be further strengthened and improved.

It is of particular importance that, according to FIG. 2, the coupling pin on the side facing away from the lock nut 17 is extended by a piece 48 beyond the locking recess 22. If the pin parts 11, 12 are not inserted axially to their desired depth in the lock nut 17 or even are still outside the lock nut directly at the beginning of the same, the locking ball 24 cannot come into radial alignment with the locking recess 22 and is located radially in the area of the piece 48 serving as an assembly lock. Accordingly, the locking ball 24 projects radially outward beyond the pin part 11, and the door handle 18 cannot be pushed open axially. The fitter is therefore forced to position the two pin parts 11, 12 properly in the lock nut 17; only then does the locking ball 24 come into radial alignment with the locking recess 22, and the door handle 18 can be pushed open axially.

Claims (16)

Door handle set consisting of a preferably metallic handle pin (13) which is formed by two pin parts (11, 12) having a non-circular, preferably square cross-section, which are made by means of a round and complementary axial bores (20, 21) of the pin parts (11, 12) arranged, coupling areas (25, 26) having coupling pin (14) tensile but rotatably connected to each other and suitable for interaction with a lock nut part (15, 16) of a split lock nut (17) of a lock in anti-panic design, and two Actuating parts (18, 19), each associated with a pin part (11, 12), such as a door handle or a rotary knob, each having an axial actuating part receiving channel (35, 36) and can be placed on the pin parts (11, 12) from the outside and with can be brought into a rotationally and axially fixed connection,
characterized,
that at least the coupling area (25) of the coupling pin (14) which is inserted in a pin part (11) has an axially acting locking recess (22) into which at least one locking piece (24) arranged radially displaceably in a radial channel (23) of the associated pin part (11) ) preferably engages from metal such as steel, which is held in engagement with the locking recess (22) by the actuating part (18) placed on the relevant pin part (11), but deviates radially so far when the actuating part (18) is removed from the pin part (11) can that the assigned clutch area (25) of the coupling pin (14) can be pulled axially out of the bore (20) of the associated pin part (11). Door handle set according to claim 1, characterized in that a stop (27) is provided on the pin part (11) in the insertion direction for the coupling area (s) (25) provided with the locking recess (22), which stops the insertion movement of the assigned coupling area ( 25) of the coupling pin (14) in the associated bore (20) limited in such a way that when the stop (27) is reached, the locking recess (22) with the radial channel (23) is at least essentially in a radial orientation. Door handle set according to claim 2, characterized in that the stop is formed by an annular step (27) of the bore (20) which is between an enlarged bore part (20 ') and a narrowed bore part () in the direction away from the lock nut (17). 20 '') is provided. Door handle set according to claim 3, characterized in that the coupling region (25) of the coupling pin (14) assigned to the bore (20) having the ring step (27) has two coupling parts (25 ', complementary to the bore parts (20', 20 ''). 25 '') of different diameters, between which there is a ring step (28) complementary to the ring step (27). Door handle set according to one of the preceding claims, characterized in that the locking piece is a ball (24). Door handle set according to one of the preceding claims, characterized in that only one locking piece (24) is provided on the circumference of the pin part (11). Door handle set according to one of the preceding claims, characterized in that the bolt recess is a groove (22) running around the pin part (11) coaxial to the axis (37). Door handle set according to one of the preceding claims, characterized in that the locking piece (24) is held in the radial channel (23) by end stops (45, 46) with such radial play that it engages in the locking recess (22) in the radially inner position and is disengaged from the latch recess (22) in the radially outer position. Door handle set according to one of the preceding claims, characterized in that only one coupling end region (25) of the coupling pin (14) is provided with a locking recess (22) and interacts with a locking piece (24), while the other coupling region (26) is provided with an axial retaining means (29) is held axially in the associated bore (21) of the other pin part (12). Door handle set according to claim 9, characterized in that the axial retaining means (29) at least one and preferably two parallel, diametrically opposite tangential bores (30) in the pin part (12) which tangentially cut the bore (21) contained therein, one with it axially aligned circumferential groove (31) in the outer circumference of the coupling area (26) and in the tangential bores (30) and the circumferential groove (31) engaging retaining pins (32). Door handle set according to one of the preceding claims, characterized in that the inner wall of the actuating part receiving channels (35, 36) in radial alignment with the locking piece (24 '') has an axial groove (39) into which the locking piece (24 '') attached operating part (18 ') engages. Door handle set according to one of claims 1 to 10, characterized in that the actuating part receiving channel (35 ') has circular areas (35a) and corner areas (35b) located between them and that the locking piece (24') located in the locking recess (22) ) extends radially into the rounded part (35a) of the actuating part bore (18). Door handle set according to one of the preceding claims, characterized in that the piece (48) of the coupling pin (14) which projects from the lock nut (17) and projects beyond the locking recess (22) has a length such that the locking piece (24) incomplete engagement of the pin parts (11, 12) in the lock nut (17) is in the area of this piece (48). Door handle set according to one of the preceding claims, characterized in that the actuating parts (18, 19) brace the two pin parts (11, 12) against one another in the axial direction. Door handle set according to claim 14, characterized in that in the outer circumference of the pin parts (11, 12) radially deepens inwards towards the lock nut in the axial direction Elongated recesses (33) are provided, into which clamping and clamping screws (34), which can be screwed in radially into the actuating parts (18, 19), engage in such a way that the pin parts (11, 12) are braced away from one another in the axial direction, the actuating parts (18, 19) are pressed against the door leaf (40) or the lock. Door handle set according to claim 15, characterized in that it has one or more features of one or more of claims 1 to 14 of patent application P 41 21 770.5.

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