WO2017093536A1

WO2017093536A1 - Self-locking pushbutton

Info

Publication number: WO2017093536A1
Application number: PCT/EP2016/079671
Authority: WO
Inventors: Viktor Komkin
Original assignee: D. la Porte Söhne GmbH
Priority date: 2015-12-03
Filing date: 2016-12-02
Publication date: 2017-06-08
Also published as: DE102015224218A1; EP3384111B1; EP3384111A1

Abstract

The present invention relates to a pushbutton (1) for unlocking a lock of a door, hood, covering or flap, in particular of an agricultural vehicle, for example of a tractor, or of a construction machine, comprising a) a pushbutton housing (2), b) an actuating button (3) which is mounted in the pushbutton housing (2) and has an unactuated and an actuated position, c) a locking mechanism for locking the actuating button (3) in its unactuated position, wherein the actuating button (3) can be moved in its unlocked state linearly along an actuating axis (10) in a pushbutton-actuating direction (74) from its unactuated position into its actuated position relative to the pushbutton housing (2), wherein the pushbutton (1) is designed in such a way that the actuating button (3) returns automatically from its actuated position into its unactuated position and is locked automatically in the process.

Description

Self-locking push button

The present invention relates to a push button for unlocking a lock of a vehicle door, hood, cover or flap, in particular an agricultural vehicle, e.g. a tractor or a construction machine.

Such a vehicle door lock is known for example from DE 10 2006 012 956 A1. This vehicle door lock has a rotary latch arrangement with two rotary traps between which a locking bolt can be received. In a locked position of the vehicle door lock, the rotary latches surround the locking pin so that the vehicle door is held in its closed position. The two rotary traps are held by two pawls in their holding the locking pin position. The pawls lock so the rotary latches. This lock can be released by means of an actuating lever. The actuating lever engages in the lock case. Rotation of the operating lever causes the pawls to release the latches and then release the latch pins.

The unlocking of a vehicle door lock, ie in the case of DE 10 2006 012 956 A1, the actuation of the actuating lever, can, for example,. done by means of a push button or a pull handle. The push button or the pull handle then has in each case an actuating mechanism for unlocking the lock, which in the case of DE 10 2006 012 956 A1 is connected to the actuating lever. The actuating mechanism may be openable and lockable, e.g. by means of a cylinder lock. If the operating mechanism is locked, the lock can not be unlocked. This is known per se.

A push button for unlocking such a vehicle door lock is known for example from DE 20 2005 021 438 111. This push button has a cylinder lock with a cylinder housing and a strengthened cylinder core with platelet tumblers. By inserting a suitable key, the cylinder core can be rotated by means of the key in the cylinder housing. As a result, the push button is unlocked or unlocked. To lock the push button, turn the key in the opposite direction. The locking and unlocking can also be done by means of a remote-controlled operating unit.

Furthermore, for example, in the case of bonnets and other covers or vehicle flaps for safety reasons, it has recently been prescribed in accordance with EU Regulation No. 1322/2014 that these can only be opened by means of a tool. This should prevent the opening by unauthorized persons. When closing the hood or flap must then lock itself.

This EU regulation is currently fulfilled, for example, by a vehicle door lock with a rotary latch arrangement according to DE 10 2006 032 257 A1. This vehicle door lock has a drive element with a drive profile that can be engaged with a tool. For example, the drive profile is a slot for engaging a screwdriver and / or an external or internal hexagon profile. This creates a security in that the vehicle door lock can not be opened without tools by unauthorized persons, but no key to open is necessary. If the flap or hood is closed, the vehicle door lock automatically returns to its original state.

Object of the present invention is to provide a push button for unlocking a lock of a vehicle door, hood, cover or flap, in particular an agricultural vehicle, such as a tractor, or a construction machine, by means of which meets EU Regulation No. 1322/2014 becomes. Another object is to provide a vehicle door, hood, cover or flap with such a push button.

This object is achieved by a push button with the features of claim 1 and a vehicle door, hood, cover or flap having the features of claim 45. Advantageous developments of the invention are characterized in the subsequent subclaims.

According to the invention, the push button is designed such that it automatically returns to its locking position during an automatic return stroke of the actuating knob from its actuated position to its unactuated position. The actuating button is thus automatically locked or the push button is according to the invention selbstverriegelnd. Automatically means that the drive is purely mechanical and automatic.

In the following the invention will be explained in more detail by way of example with reference to a drawing. FIG. 1 is an exploded perspective view of the invention

push button

Figure 2: A first longitudinal section of the push button according to the invention in the locked position

Figure 3: Another longitudinal section of the push button according to the invention in the locked position

Figure 4: A perspective view of a push-button housing of the push button according to the invention from a first housing end

A perspective view of a push-button housing of the pushbutton according to the invention from a second housing end of Figure 6: A perspective view of an actuator button housing a

Actuating button of the push button according to the invention from the side Figure 7: A perspective view of the actuator button housing from a second actuator button end

Figure 8: A perspective view of the actuator button housing from a first actuator button end

Figure 9: A perspective view of a locking sleeve of the push button according to the invention from a first locking sleeve end

FIG. 10: A perspective view of the locking sleeve from a second locking sleeve end

Figure 1 1: A perspective view of a Torsionsdruck- and leg spring of the push button according to the invention

Figure 12: A perspective view of a leg spring of the push button according to the invention

Figure 13: A perspective view of a lock cylinder core of the actuating knob

Figure 14: A perspective view of the push button according to the invention partially cut, in non-actuated and locked position

FIG. 15: A cross section of the pushbutton according to the invention in the position according to FIG. 14

Figure 16: A perspective view of the push button according to the invention without push-button housing and stepped mandrel with actuated lock cylinder core, locking sleeve moved

Figure 17: A perspective view of the position locking sleeve in

Push-button housing with the lock cylinder core in accordance with FIG. 16

FIG. 18: a perspective view of the pushbutton according to the invention, partially cut, lock cylinder core with control knob turned further

FIG. 19: A perspective view of the pushbutton according to the invention without pushbutton housing in the position according to FIG. 18

Figure 20: A perspective view of the push button according to the invention, partially cut, lock cylinder core together with the operating knob turned into the end stop

FIG. 21: A perspective view of the pushbutton according to the invention without pushbutton housing in the position according to FIG. 20

Figure 22: Another perspective view of the invention

Push button, partially cut in the position shown in FIG 20

FIG. 23 shows a cross section of the pushbutton according to the invention in the position according to FIG. 20

Figure 24: A perspective view of the push button according to the invention without push-button housing and step mandrel in the unlocked position, reset with unactuated actuator button lock cylinder core

FIG. 25: a perspective view of the push button according to the invention, partially cut in the position according to FIG. 24

Figure 26: A perspective view of the push button according to the invention, partially cut with actuated and already partially turned back actuator button

FIG. 27 shows a cross section of the pushbutton according to the invention in the position according to FIG. 26

FIG. 28: A perspective view of the pushbutton according to the invention, partially cut with the actuating button partly set back FIG. 29 shows another perspective view of the pushbutton according to the invention, partially cut away in the position according to FIG. 28

Figure 30: A perspective view of a coupled with a rotary latch lock push button The push button 1 according to the invention (Fig. 1-3, 14-30) has a push-button housing 2, an operating knob 3 mounted therein with a lock cylinder core 4, a locking sleeve 5, a Torsionsdruck- and -shank spring 6, a compression spring 7, a leg spring 8 and a fixedly connected to the operating knob 3 coupling element 9. In addition, the push button 1 has a linear actuating axis 10. The push button 1 has seen in the direction of the actuation axis 10 a first push-button end or Druckknopfeinsteckende 1 a and a second push-button end or push-button actuating end 1 b on.

The push-button housing 2 (Fig. 4.5) has hollow cylindrical or tubular housing wall 1 1 with a housing wall outer surface 1 1 a and a Gehäusewandungsinnenfläche 1 1 b. The push-button housing 2, viewed in the direction of the actuation axis 10, has a first housing end 2a and a second housing end 2b. In addition, the push-button housing 2 has a housing recess 12 which extends through the push-button housing 2 in the direction of the actuation axis 10.

At the first end of the housing 2 a, the push-button housing 2 preferably has a circumferential mounting collar 13, which protrudes radially from the housing wall outer surface 11 a and serves as a stop during the assembly of the push-button 1 in the vehicle door, flap or hood. In addition, the housing wall outer surface 1 1 a preferably has an external thread 14 for mounting the push button 1 in the vehicle door, flap or hood.

At the second housing end 2b, the push-button housing 2 has a circumferential, annular housing bottom 15 projecting radially inwardly from the housing wall inner surface 11b. The housing bottom 15 has a ne first, the first housing end 2a facing bottom side 15a and one of these in the direction of the actuation axis 10 opposite, the second housing end 2b facing bottom side 15b.

The housing bottom 15 has two locking sleeve receiving grooves 16, which are radially opposite each other in relation to the actuating axis 10. The locking sleeve receiving grooves 16 extend from the second bottom side 15b or from the second housing end 2b into the housing bottom 15 and terminate in a planar groove base 16a, preferably perpendicular to the actuating axis 10. In addition, the locking sleeve receiving grooves 16 have two groove side surfaces 16b that are opposite each other in the circumferential direction and are spaced apart from each other, and a circular cylindrical groove peripheral surface 16c. The locking sleeve receiving grooves 16 are open towards the inside.

The locking sleeve receiving grooves 16 also have a locking ridge 17 which projects from the groove base 16a and the groove peripheral surface 16c. The barrier web 17 is arranged between the two groove side surfaces 16b. It has a web end surface 17a facing the second housing end 2b and two web side surfaces 17b. A spiral surface is created by screwing a straight cutting a screw axis. A screw face in geometry is an area created by screwing a curve in Euclidean space. The screw axis of the web spiral surface 17 a is the actuating axis 10.

Between one of the two groove side surfaces 16b and one of the two web side surfaces 17b, respectively a first and second locking groove 18, 19 are formed, whose function will be discussed below. The height of the web spiral surface 17a seen in the direction of the actuating axis 10 increases from the first to the second locking groove 18, 19 towards. The web spiral surface 1 7a is thus rechtssteigend. Ascending means that the helix moves away from the viewer as it rotates in the direction indicated (right = clockwise). Thus, the web spiral surface 17a is viewed from the first Push button end 1 a ago preferably formed in an unlocking 51 rising.

The housing bottom 15 also has two with respect to the actuating axis 10 radially opposite through grooves 20. The through-passage grooves 20 extend through the housing bottom 15 in the direction of the actuation axis 10. They also have a circular cylindrical groove peripheral surface 20a, two circumferentially opposite and spaced groove side surfaces 20b, c on. The passage grooves 20 are also open towards the inside. Furthermore, the housing bottom 15 has a circumferential, annular spring receiving groove 21 which serves to receive the Torsionsdruck- and - leg spring 6. The spring receiving groove 21 extends from the first bottom side 2a seen in the housing bottom 15 and has a, preferably perpendicular to the actuating axis 10, circumferential groove base 21a. Seen radially outside the spring receiving groove 21 is preferably bounded by the Wandungsinnenfläche 1 1 b. Seen radially inside, the spring receiving groove 21 has a circumferential, preferably circular cylindrical, groove surface 21b. This preferably has a radially inwardly recessed region 22. The area 22 preferably provides the necessary building space for the locking sleeve receiving grooves 16.

Furthermore, the housing bottom 15 on the first bottom side 1 5a on a circumferential bottom surface 23, which serves to block the movement of the actuating knob 3 in the direction of the second push button end 1 b. The bottom surface 23 is preferably perpendicular to the actuation axis 10. In addition, the housing bottom 15 has a in the direction of the actuation axis 10 through the housing bottom 15 by extending spring end receiving hole 75. The spring end receiving hole 75 is preferably formed as a circumferentially extending slot.

The push-button housing 2 preferably also has several, parallel Lel to the actuating axis 10 extending ribs 24, which serve to guide the actuating head 3. The ribs protrude from the inner surface 1 1 b and are arranged adjacent to each other in the circumferential direction. They preferably extend from the first housing end 2 a to the housing floor 15.

The actuating knob 3 (FIGS. 6-8) has a longitudinal extent in the direction of the actuating axis 10. In addition, as viewed in the direction of the actuation axis 10, it has a first actuation button end or actuation button insertion end 3a and a second actuation button end or actuation button actuation end 3b.

In addition, the operating knob 3, a tubular actuating button housing 25 for receiving the lock cylinder core 4 and a pipe socket 26. The actuating button housing 25 has a tubular cylinder housing wall 27 with a wall outer surface 27a and a Wandungs- inner surface 27b and a first and a second Wandungsstirnfläche 27c, d on. In addition, the actuating button housing 25 has a direction of the actuation axis 10 through the operating knob housing 25 through opening 28. The operation knob housing 25 also has a first operation button housing end 25a and a second operation button housing end 25b opposite to the first operation button housing end 25a in the direction of the operation axis 10.

Preferably, the cylinder housing wall 27 has a circumferentially extending non-circumferential slot 29a extending radially through the cylinder housing wall 27. The slot 29a serves to receive a fuse 29b which additionally radially limits a mounting tumbler or locking tumbler 46. In addition, the actuating button housing 25 has a circumferentially extending, circumferential sealing ring receiving groove 30, which is open to the outer wall surface 27a out. The sealing ring receiving groove 30 serves to receive a sealing ring (not shown). The pipe socket 26 projects from the actuating button housing 25 in the direction of the actuating axis 10. He extends to the second actuator button end 3b. The pipe socket 26 has a pipe wall 31 with a Wandungsaußenfläche 31 a and a Wandungsinnenfläche 31 b. In addition, the pipe socket 26 has a first, the operating knob housing 25 facing pipe socket end 26a, and a second, the operating knob housing 25 facing away, free pipe socket end 26b.

Furthermore, the pipe socket 26 has two radially opposite locking bars 32 which protrude from the outer wall surface 31 a. The locking bars 32 have a longitudinal extent parallel to the actuating axis 10. They do not extend all the way to the free pipe socket end 26b, but are spaced therefrom. The locking strips 32 each have a free, the second actuating button end 3b facing strip end face 32a and two circumferentially spaced apart strip side surfaces 32b and an outer strip peripheral surface 32c. The strip end face 32a is preferably perpendicular to the actuating axis 10. The strip circumferential surface 32c is preferably circular-cylindrical.

The pipe socket 26 is connected by means of two fastening webs 33 with the actuating button housing 25. The two fastening webs 33 extend from the outer wall 31 a of the pipe socket 26 to the inner wall surface 27 b of the actuating button housing 25. Preferably, the two locking strips 32 each adjoin one of the two fastening webs 33 and protrude therefrom. Between the two fastening webs 33 there is in each case an intermediate space 34 which can be penetrated by the cylinder core 4. The intermediate spaces 34 are each limited in the circumferential direction by a first and second stop surface 34a, b.

In the region of the two intermediate spaces 34, the nozzle tube wall 31 each have a recess 35 in the outer wall surface 31 a. The depression 35 extends in each case from the first pipe socket end 26a in the direction of Actuation ungsachse 10 in the pipe socket 26 inside. It is open towards the pipe socket end 26a and has a recess bottom surface 35a extending in the circumferential direction and two depression side surfaces 35b which are opposite each other in the circumferential direction and extend parallel to the actuating axis 10. The recess 35 extends partially into the fastening webs 33 inside.

Furthermore, the pipe socket 26 has a first blind hole 36 extending from the first pipe socket end 26a in the direction of the actuation axis 10 into the pipe socket 26 and a second blind hole 37 extending from the second pipe socket end 26b in the direction of the actuation axis 10 into the pipe socket 26 , The two blind holes are separated by an intermediate wall 38. The second blind hole 36 has an internal thread.

The cylinder housing wall 27 of the actuating button housing 25 has, moreover, on the end face on the second actuating button housing end 25b, a peripheral, annular spring receiving groove 39 for receiving the leg spring 8. The spring receiving groove 39 is radially bounded by an outer tubular portion 40 of the cylinder housing wall 27 and by a cylinder tube segment 41. The cylinder tube segment 41 has a circular cylindrical outer surface and a circular cylindrical inner surface. It is located within section 40. In addition, the cylinder tube segment 41 projects beyond the section 40 in the direction of the actuation axis 10 toward the outside or towards the second actuation button end 3b.

The cylinder tube segment 41 also extends in the circumferential direction seen between the two locking bars 32 and connects to their strip side surfaces 32b. From the outer wall surface 31 a of the pipe socket 26, the cylinder tube segment 36 is spaced therefrom. The cylinder tube segment 41 is thus arranged around the pipe socket 26 around.

In addition, the cylinder tube segment 41 is at a position in the circumferential direction interrupted, so that between the cylinder tube segment 41 and the strip side surface 32 b of the one of the two locking strips 32, a slot 42 is formed. In addition, the cylinder tube segment 41 on the basis of a parallel to the actuating axis 10 extending, free Federendeabstütz- edge 43, which serves to support the leg spring 8. The slot 42 and the Federendeabstützkante 43 extend into the spring receiving groove 35 into it.

The outer tubular portion 40 also has a spring end receiving slot 76 which extends into the section 40 in the direction of the actuation axis 10.

As already explained, the actuating button housing 25 serves to receive the cylinder core 4.

The cylinder core 4 (FIG. 13) has a first cylinder core end or insertion end 4a and a cylinder core end or operating end 4b opposite this in the direction of the actuation axis 10. In addition, the cylinder core 4 has a, in particular cylindrical, core body 54 with a, preferably circular-cylindrical, body outer surface 54a. The cylinder core 4 also has, in a manner known per se, a key channel extending parallel to the actuating axis 10 from the first cylinder core end 4a into the cylinder core 4, in particular the core body 54, and the cylinder core 4, in particular the core body 54, extending perpendicular thereto. passing through platelet guide slots 44. The plate guide slots 44 are arranged adjacent to one another in the axial direction. In each platelet guide slot 44, two spring-loaded platelet tumblers 45 are preferably arranged in each case. In addition, a Sperrzuhaltung 46 is arranged in a further guide slot, which serves in a conventional manner to the fact that the cylinder core 4 is mounted axially immovably in the actuating knob housing 25. If no matching key is inserted into the cylinder core 4, the platelet tumblers 45 are pressed by means of springs 46 into locking grooves 47 of the actuation button housing 25, so that the cylinder core 4 in the actuation knob housing 25 can not be rotated about the actuation axis 10. If a suitable key is inserted, the plate tumblers 45 are drawn into the cylinder core 4, so that the cylinder core 4 can be rotated about the actuating axis 10 in the actuating button housing 25. This is known per se. In this case, the locking mechanism can also be designed differently. Preferably, the locking mechanism is designed according to the German patent application DE 10 2015 000 213.

The core body 54 also has a core end face 49 on the second cylinder core end 4b, which is preferably perpendicular to the actuating axis 10.

In addition, the cylinder core 4 has two radially opposite actuation segments 50, which project from the core end face 49 in the direction of the actuation axis 10. The actuating segments 50 are preferably arranged on the outer peripheral edge of the core end face 49. The actuating segments 50 are preferably also cylindrical-cylinder-like and have a segment outer surface 50a, preferably a circular cylindrical surface, a radially opposite, preferably circular-cylindrical, segment inner surface 50b, two circumferentially opposite segment side surfaces 50c, d, and a free, second cylinder core end 4b facing , end-face segment-actuating surface 50e. The segment outer surface 50a preferably terminates flush with the body outer surface 54a. The segment actuation surface 50e, as seen in the unlocking direction 51, has a, preferably planar, cylinder core stop surface 52 and an adjoining cylinder core surface 53. The cylinder core stop surface 52 is preferably perpendicular to the actuation axis 10. The cylinder core surface 53 extends from the cylinder core stop surface 52 toward the first cylinder core end 4a. The screw axis of Cylinder core surface 53 corresponds to the actuating axis 10. In addition, the cylinder core surface 53 is also preferably left rising or rising against the unlocking direction 51 seen, viewed from the first push button end 1 a. The pitch direction of the cylinder core spiral surface 53 is thus preferably opposite to the pitch direction of the web spiral surface 17a.

The locking sleeve 5 (FIGS. 9, 10), viewed in the direction of the actuation axis 10, has a first locking sleeve end 5a and a second locking sleeve end 5b opposite this. Furthermore, the locking sleeve 5 has a sleeve wall 55, which has a, in particular circular cylindrical, wall outer surface 55a, a, in particular circular cylindrical wall inner surface 55b and a first wall end face 55c and a second wall end face 55d.

Furthermore, the locking sleeve 5 has at its second locking sleeve end 5b two radially opposite locking pins 56. The two locking pins 56 are each in the radial direction to the outside of the outer wall surface 55a of the sleeve wall 55 from. Furthermore, the locking pins 56 each have two pin side surfaces 56a adjacent to one another in the circumferential direction, in particular a circular cylindrical pin surface 56b, a pin end surface 56c facing the second locking sleeve end 5b, and a pin spiral surface 56d opposite the pin end surface 56c in the direction of the actuating shaft 10. The journal end surface 56c is preferably planar and perpendicular to the actuating axis 10. In addition, it terminates flush with the second wall end face 55d.

According to the invention, the trunnion helical surface 56d is designed corresponding to the land helix surface 17a. The screw axis of the pin turn surface 56d thus also corresponds to the actuating axis 10. In addition, it has the same pitch and the same pitch direction. In the unlocking direction As seen in FIG. 51, the distance of the trunnion surface 56d to the trunnion face 56c decreases continuously.

The locking sleeve 5 also has two radially opposite ledge guide slots 57 which serve to guide the locking ledges 32. The strip guide slots 57 extend parallel to the actuating axis 10. They are open to the first locking sleeve end 5a. Furthermore, the ledge guide slots 57 each have a slot end edge 57a and two circumferentially opposed slot side edges 57b. The first wall end face 55c of the locking sleeve 5 has two guide sections 58, which are separated from one another by the strip guide slots 57. Viewed from the respective ledge guide slot 57, each guide section 58 has, in the unlocking direction 51, a first, preferably planar, surface 59a, a connecting surface 59b adjoining thereto, a second, preferably planar, surface 59c adjoining thereto, a locking sleeve which adjoins it - delfläche 59d and an adjoining third, preferably planar, surface 59e. The planar surfaces 59a, 59c, 59e are each preferably formed perpendicular to the actuating axis 10. Furthermore, the second surface 59c is offset with respect to the first surface 59a toward the second locking sleeve end 5b. The transition surface 59b preferably extends parallel to the actuating axis 10. The oblique locking sleeve spiral surface 59d extends from the second surface 59c towards the third surface 59e, the third surface 59e being displaced relative to the second surface 59c toward the first locking sleeve end 5a is. Preferably, the first and second surfaces 59a, 59e are coplanar with each other.

The transition surface 59b, the second surface 59c and the locking sleeve helical surface 59d form a detent recess 78 for receiving an actuating segment 50 of the lock cylinder core 4. The locking sleeve spiral surface 59d is designed according to the invention corresponding to the cylinder core surface 53 of the lock cylinder 4. The screw axis of the locking sleeve spiral surface 59d thus also corresponds to the actuating axis 10. In addition, the locking sleeve senwendelfläche 59d the same pitch and the same pitch direction as the cylinder core surface 53 on.

At the second locking sleeve end 5b, the sleeve wall 55 also has an inner, annular stepped shoulder 60 on the face side. The stepped shoulder 60 has an annular support surface 60a, which serves to support the compression spring 7. For this purpose, the support surface 60a is preferably perpendicular to the actuation axis 10.

The coupling element 9 serves to couple the push button 1 to the actuating mechanism 101 of a lock 100 (FIG. 30). In particular, the coupling element 9 serves for connection to a corresponding, corresponding coupling element 102 of the lock mechanism, which is arranged outside the push-button housing 2. The lock 1 00 is preferably a rotary latch lock with at least one rotary latch 103.

Preferably, the coupling element 9 is a step mandrel 61 (FIG. 2). The step mandrel 61 has, viewed in the direction of the actuation axis 10, a first step mandrel end 61a and a second step mandrel end 61b opposite this. At the first step mandrel end 61 a of the step mandrel 61 is firmly connected to the operating knob 3. The second step mandrel end 61 b is used to couple the step mandrel 61 a with the actuating mechanism 101 of the lock 100. The step mandrel 61 has a base plate 62 and two connecting pieces 63; 64 on. The first connecting piece 63 extends away from the base plate 62 or protrudes therefrom in the direction of the first step-end 61 a. The second connection piece 64 projects from the base plate 62 in the direction of the second step-end 61 b. In this case, the first connection piece 63 preferably formed not stepped and has an external thread. The second connecting piece 64 is preferably stepped and has a first, circular cylindrical connecting piece portion 65a and a second, circular cylindrical connecting piece portion 65b. The first nozzle section 65a has a larger diameter than the second nozzle section 65b. In addition, the second nozzle portion 65b also has an external thread for connection to the actuating mechanism.

As already explained, the push button 1 also has the torsion pressure and - leg spring 6 (Fig. 1 1). In a tortuous torsion spring, the main load direction is in the direction of the spring axis, wherein the spring ends can rotate slightly against each other. The wire cross-section is subjected to torsion under load. Depending on the external load, a distinction is made between the tension spring and the compression spring. A torsion spring is a helical spring that is flexed about its axis. It is thus initiated a torque.

The Torsionsdruck- and -schenkelfeder 6 is subjected to both pressure and bending. Torsionsdruck- and -schenkelfeder 6 has a coaxial to the actuation axis 10 spring axis 66 and seen in the direction of the spring axis 66 a first and a second spring end 6a, 6b. In addition, the torsion pressure and - torsion spring 6, a coil winding 67 made of spring wire with two spring wire ends 68a, 68b. The spring wire ends 68a, 68b preferably extend parallel to the spring axis 66 toward the respective spring end 6a, 6b. The spring ends thus each extend away from the helical winding 67. The compression spring 7 also has a spring axis 69, which is coaxial with the axis of actuation Actuate 10. It also has a helical coil 70 of spring wire. The spring wire ends are not bent.

The leg spring 8 (Figure 12) also has a spring axis 71 and a helical coil 72 of spring wire. In the direction of the spring axis 71, which is also coaxial with the actuating axis 10, the leg spring 8 has a first spring end 8a and a second spring end 8b. In addition, the leg spring 8 has a first spring wire end 73a and a second spring wire end 73b. The first spring wire end 73a arranged at the first spring end 8a extends parallel to the spring axis 71 away from the screw winding 72. The second spring wire end 73b arranged at the second spring end 8b extends radially inward toward the spring axis 71.

The springs 6, 7, 8 are preferably each made of metal or plastic.

The mode of operation of the pushbutton 1 according to the invention will now be explained below:

In the assembled, locked or locked state of the push button 1 according to the invention (FIGS. 2, 3, 14, 15), the actuation button 3 is initially mounted immovably within the push-button housing 2 in the direction of the actuation axis 10. At the first push-button end 1 a, the actuation button 3 projects out of the push-button housing 2. The wall outer surface 27 a of the cylinder housing wall 27 slidably slides in the direction of the actuation axis 10 against the ribs 24.

In the unactuated state of the actuating knob 3 also the last end faces 32a of the locking bars 32 of the actuating knob 3 in the direction of Actuate ungsachse 10 are aligned with the bottom surface 23 of the push-button housing 2 and slightly spaced therefrom. The locking bars 32 are therefore not arranged in alignment with the passage grooves 20. As a result, the movement of the actuating knob 3 in the direction of a linear axis of actuation 10 10 parallel push button actuation direction 74 is locked. The bottom surface 23 serves as an abutment for the movement of the actuating button 3 in the pushbutton actuating direction 74.

Furthermore, the step mandrel 61 is screwed with its first connecting piece 63 into the second blind hole 37 of the pipe socket 26. The step mandrel 61 is thus firmly connected to the operating knob 3. In this case, the base plate 62 is outside of the push-button housing 2, in particular on the second housing end face 1 1 d, at. As a result, the movement of the actuating knob 3 against the push button actuating direction 74 is locked.

The actuating button 3 is thus locked or in its locked position. The actuating knob 3 is immovable parallel to the actuating axis 10.

The Torsionsdruck- and -schenkelfeder 6 is also disposed within the push-button housing 2. In particular, the Torsionsdruck- and - leg spring 6 is disposed at its second spring end 6b within the spring receiving groove 21. In addition, the Torsionsdruck- and -schenkelfeder 6 is arranged around the pipe socket 26 of the actuating knob 3 and the locking sleeve 5 around. It is spaced from both. In this case, the torsion pressure and -shank spring 6 is supported at its first spring end 6a in the direction of the spring axis 69 on the second wall face 27d of the operating knob housing 25. The Torsionsdruck- and -shank spring 6 is thus clamped between the operating knob 3 and the push-button housing 2 parallel to the spring axis 69 and pushes the operating knob 3 and the push-button housing 2 apart. Respectively. the operating knob 3 is connected to the Torsionsdruck- and -schenkelfeder 6 against the push-button actuating direction 74 relative to the push-button housing 2 drivable in connection. Respectively. the push-button torsion spring 6 urges the operating knob 3 out of the push-button housing 2.

In addition, the first spring wire end 68a of the torsion pressure and torsion spring 6 is disposed within the spring end receiving slot 76 of the operation knob 3, and the second spring wire end 68b is inside the spring end receiving hole 76 of the push button housing 2 is arranged. The Torsionsdruck- and -schenkelfeder 6 is biased in the locked state of the push button 1. As a result, the actuating button 3, in particular the actuating button housing 25, relative to the push-button housing 2 in the unlocking direction 51 only against the force of Torsionsdruck- and - leg spring 6 are rotated about the actuating shaft 10. Respectively. the actuating button 3, in particular the actuating button housing 25, is connected to the Torsionsdruck- and -schenkelfeder 6 against the unlocking 51 relative to the push-button housing 2 drivable in connection. The movement of the actuating button 3, in particular the actuating button housing 25, against the unlocking 51 is also locked by the fact that the locking pin 56 abut against the first locking grooves 18 associated groove side surfaces 16 b.

The leg spring 8 is arranged within the spring receiving groove 39 of the actuating button 3. At this time, the first spring wire end 73a is disposed inside the spring end receiving groove 77 of the operation knob 3, and the second spring wire end 73b abuts the spring relief edge of the operation knob 3 and the second segment side surface 50d of the one actuating segment 50 of the cylinder core 4. As a result, the leg spring 8 is tensioned in rotation of the cylinder core 4 relative to the operation knob housing 25 in the unlocking direction 51.

The locking sleeve 5 is, as already explained, arranged around the pipe socket 26 of the actuating knob 3 around. In this case, the locking bars 32 of the actuating button 3 are arranged within the strip guide slots 57. In this case, the two strip side surfaces 32b abut respectively on the two slot side edges 57b. As a result, the operating knob 3 is non-rotatably connected to the locking sleeve 5 about the actuating shaft 10 in connection.

The strip end faces 32a also abut against the slot end edges 57a. In this position, the locking sleeve 5 is urged by the compression spring 7, which is arranged around the pipe socket 26 and within the stepped shoulder 60 of the locking sleeve 5. In particular, the pressure spring 7 is supported at one end on the locking sleeve 5, in particular on the supporting surface 60 a, and on the other end against the base plate 62 of the stepped mandrel 61. The locking sleeve 5 is also non-rotatably connected to the push-button housing 2 around the actuating axis 10. For this purpose, the locking pins 56 of the locking sleeve 5 are arranged within the first locking groove 18.

The locking sleeve 5 is thus connected to the compression spring 7 relative to the Actuate knob 3 against the push button actuation direction 74 drivable in connection.

The lock cylinder core 4 is arranged in a manner known per se within the actuating button housing 25. In the direction of the actuation axis 10, the lock cylinder core 4 is immovably connected to the actuation button housing 25 by means of the locking tumbler 46. As long as no matching key is inserted into the lock cylinder core 4, the lock cylinder core 4 is non-rotatable about the actuation axis 10 with the actuation button housing 25 in conjunction, since the platelet tumblers 45 are disposed within the locking grooves 48. The actuating segments 50 of the lock cylinder core 4 also lie against the locking sleeve 5. They are each arranged within a detent recess 78, locked in this form-fitting manner. More specifically, the cylinder core abutment surface 52 abuts against the second planar surface 59c, and the cylinder core surface 53 abuts against the interlock sleeve spiral surface 59d over its entire surface.

In this case, the actuating segments 50 pass through the intermediate spaces 34. In addition, the first segment side surface 50c preferably bears against the first stop surface 34a. In addition, the actuating segments 50 are arranged in the recesses 35. In summary, in the locked state of the push button 1, as long as no matching key is inserted into the lock cylinder core 4, the lock cylinder core 4, the actuator button housing 25, the locking sleeve 5 and the push-button housing 2 to each other about the operating axis 10 is not rotatable. In addition, the operating knob 3 can not be pressed in the push button actuation direction 74 in the push-button housing 2, so are not operated. Also, it can not be moved against the push button actuating direction 74 relative to the push button housing 2. Actuating button 3 and push-button housing 2 are firmly connected to each other in the locked state or locked to each other.

To unlock the push button 1, a matching key is now inserted in the push button actuating direction 74 in the lock cylinder core 4. As a result, the plate tumblers 45 are pulled out of the locking grooves 48 into the interior of the lock cylinder core 4. Now, the lock cylinder core 4 can be rotated relative to the operating knob 3 by means of the key in unlocking 51.

As the lock cylinder core 4 rotates, the cylinder core surface 53 slides along the lock sleeve coil surface 59d such that the lock sleeve 5 is displaced relative to the operation knob 3 in the push button operation direction 57 (FIG. 16). As a result, the two locking pins 56 of the locking sleeve 5 are each moved out of the first locking groove 18 (FIG. 17). The compression spring 7 is compressed and tensioned. Also, the leg spring 8 is tensioned by the rotation of the lock cylinder core 4 relative to the operation knob housing 25 because the spring wire ends 73a, 73b are forced apart.

As soon as the locking pins 56 are arranged outside the first locking grooves 18, the locking sleeve 5 and thus also the actuating button housing 25 can be rotated in the unlocking direction 51 relative to the push-button housing 2. Since the second segment side surfaces 50d are abutted against the second stop surfaces 34b of the interspaces 34, in the course of set the key rotation or rotation of the lock cylinder core 4 in unlocking 51 of the entire operating knob 3 taken along with the locking sleeve 5. The rotation takes place at the maximum until the locking pins 56 abut the groove side surfaces 16b of the locking sleeve receiving grooves 16 assigned to the second locking grooves 19.

Upon rotation of the actuating knob 3 in unlocking 51 relative to the push-button housing 2, the Torsionsdruck- and -schenkelfeder 6 is stretched, since the spring wire ends 68 a; 68b are urged apart in the circumferential direction. The rotation of the locking sleeve 5 relative to the push-button housing 2 additionally causes the pin turning surfaces 56d of the locking pins 56 to slide along the web spiral surfaces 17a of the blocking webs 17 (FIG. 18). This causes an additional or simultaneous or superimposed linear movement of the locking sleeve 5 in Druckknopfbetätigungs- direction 74 relative to the operating knob 3 and the push button housing 2. In particular, this causes the locking sleeve 5 is spaced from the actuating segments 50 of the cylinder core 4 (Fig. 19 ). As a result, the locking pins 56, as soon as they are arranged in the direction of the actuation axis 10 aligned with the second locking grooves 19, are driven partially by the force of the compression spring 7 into the second locking grooves 19 (FIG. 20). Thus, the locking sleeve 5 is again arranged non-rotatably about the actuating shaft 10 in the push-button housing 2.

However, the locking sleeve 5 can engage only until the locking sleeve spiral surface 59d abuts against the cylinder core surface 53. In this position, the locking pins 56 are not yet completely disposed within the second locking groove 19.

The lock cylinder core 4 is located in its actuated end stop. As a result, the key is next released by the operator. As a result, the lock cylinder 4 rotates automatically, in particular driven by the leg spring 8, against the unlocking direction 51 in its non-actuated starting position back. When turning back the lock cylinder core 4, the cylinder core surface 53 slides again, but counter to previously, along the locking sleeve turning surface 59d until the surfaces 53, 59d abut one another again over the entire surface. Because of this, the locking sleeve 5, driven by the force of the compression spring 7 against the push button actuating direction 74 relative to the actuating button 3, in particular the lock cylinder core 4, and the push-button housing 2 is displaced, so that the locking pins 56 completely engage in the second locking grooves 19 (FIG ).

After turning back the lock cylinder core 4 or while the key is then pulled out of the lock cylinder core 4 by the operator.

The operating knob 3 is now in the unlocked, unactuated state. Because the locking bars 32 are now arranged in the direction of the actuating axis 10 in alignment with the passage grooves 20 of the push-button housing 2 (Fig. 22,23). The movement of the actuating knob 3 in push button actuation direction 74 is thus no longer locked.

If the operating button 3 is actuated by the operator by being pressed into the push-button housing 2 in the push-button actuating direction 74, he takes the locking sleeve 5 with him. The locking pin 56 of the locking sleeve 5 are again pressed out of the second locking grooves 19 of the push-button housing 2 out. With the operating knob 3 and the step mandrel 61 is displaced in the direction of the push button actuating direction 74 relative to the push button housing 2. Thereby, the operating mechanism 101 of the lock mechanism is operated in a conventional manner such that the lock 100 is unlocked (Fig. 26).

During the actuating stroke or immediately after releasing the operating knob by the operator at the beginning of the return stroke of the operating knob 3 together with the locking sleeve 5 is already automatically, in particular by the force of Torsionsdruck- and -schenkelfeder 6, so far contrary the unlocking direction 51 is rotated back until the locking bars 32 abut on the first groove side surfaces 20b of the through grooves 20 (Fig. 27). The movement of the actuating knob 3 and the locking sleeve 5 against the unlocking direction 51 is thus limited or the return angle is limited or the movement is interrupted. This intermediate position is a prerequisite that during the return stroke of the actuating knob 3 against the push button actuation direction 74 is an automatic or automatic locking. In particular, it is a prerequisite that the operating knob 3 can not return to its unlocked position:

The locking sleeve 5 is rotated back until the locking pins 56 are arranged in the direction of the actuating axis 10 in alignment with the locking webs 17 (FIG. 26) or the locking pins 56 are no longer in alignment with the second locking grooves 19. In the actuated position of the actuating knob 3, the Torsionsdruck- and -schenkelfeder 6 is compressed in the direction of its spring axis 66. Therefore, after releasing the operation knob 3 by the operator, the operation knob 3 automatically snaps back against the push button operation direction 74, in particular driven by the torsion pressure and leg spring 6, until the pin turn surfaces 56d abut on the land coil surfaces 17a (FIG. 28). That is, during the return stroke of the operation knob 3, the surfaces 56d, 17a meet each other.

Due to this, the movement of the lock sleeve 5 against the push button operation direction 74 is interrupted, whereas the operation button 3 continues to move against the push button operation direction 74. The operating knob 3 thus moves relative to the locking sleeve 5 further counter to the push button actuating direction 74. The operating knob 3 moves so far against the push button actuation direction 74 until the step mandrel 61 abuts the push button housing 2. The step mandrel 61 thus forms the abutment for the return stroke of the actuating button 3. Die Lock bars 32 are then again arranged completely outside the through-grooves 20 of the push-button housing 2 and driven out of the through-grooves 20 out.

Once the locking bars 32 are again arranged completely outside the through-grooves 20 of the push-button housing 2 (FIG. 29), the actuating button 3 is automatically turned, in particular driven by the torsion compression spring 6, counter to the unlocking direction 51 back to its starting position, in which the locking bars 32 are arranged in alignment with the bottom surface 23. The locking sleeve 5 is taken along. Driven by the force of the compression spring 7, the locking sleeve 5 automatically returns against the push button actuation direction 74 in the starting position. In this case slide due to the superimposed rotational movement of the locking sleeve 5, the pin spiral surfaces 56 along the web spiral surfaces 17a along until the locking pin 56 engage in the first locking grooves 18 again.

The push button 1 is thus back in its locked position and can only be operated again by inserting a suitable key. The push button 1 according to the invention ensures high protection against the opening of the vehicle door, hood or flap by unauthorized persons. Because the fact that the push button 1 automatically locked during the return stroke of the actuating knob 3, ie without actuation by means of the key, the push button 1 must not be actively locked. This is done automatically and purely mechanically, preferably by spring forces and coordinated surfaces, in particular helical surfaces. In particular with hoods, in particular bonnets, and flaps of a vehicle, this is an important safety aspect in order to avoid accidents.

In the context of the invention, it is also the case that instead of the lock cylinder core a cylinder core is present, which is rotatable by means of a tool, such as a screwdriver or wrench. To has the cylinder core corresponding connection elements. In this case, the cylinder core is basically rotatable in the unlocking due to lack of platelet tumblers, but only against the force of the leg spring, so that the push button thereby remains in its locked position.

Claims

claims

1. Push button (1) for unlocking a lock of a door, hood, cover or flap, in particular an agricultural vehicle, e.g. a tractor, or a construction machine, comprising a) a push-button housing (2),

b) an actuating button (3) mounted in the push-button housing (2) and having an unactuated and an actuated position,

c) a locking mechanism for locking the actuating knob (3) in its unactuated position, wherein the actuating button (3) in its unlocked state linearly along a Betätigungsig axis (10) in a push-button actuating direction (74) from its unactuated position to its actuated position relative to the push-button housing (2) is movable,

characterized in that

the push button (1) is designed such that the actuating button (3) automatically returns from its actuated position to its unactuated position and thereby automatically locked.

2. push button (1) according to claim 1,

characterized in that

the push button (1) is designed such that the actuating button (3) driven by spring force from its actuated position returns to its unactuated position and thereby automatically locked.

3. push button (1) according to claim 1 or 2,

characterized in that

the actuating button (3) can be unlocked relative to the push-button housing (2) in an unlocking direction (51) by rotation about the actuating axis (10) and can preferably be locked in the rotated, unlocked position.

4. push button (1) according to claim 3,

characterized in that

the push button (1) is designed such that the actuating button (3) during its actuation stroke and / or at the beginning of his Rückhu- bes automatically against the unlocking (51) relative to the push-button housing (2) is at least partially rotated back from its unlocked position.

5. push button (1) according to one of the preceding claims,

characterized in that

the actuating button (3) is in its locked position parallel to the actuating axis (10) immovably with the push-button housing (2) is in communication.

6. push button (1) according to one of the preceding claims,

characterized in that

the push button (1) has a spring, in particular a Torsionsdruck- and - leg spring (6), with which the actuating button (3) relative to the push button housing (2) against the push button actuation direction (74) and against the unlocking (51) about the actuating axis (10) is rotatably driven in connection.

7. push button (1) according to one of the preceding claims,

characterized in that

the push-button housing (2) has a housing insertion end (2a) and a housing actuation end (2b), wherein the push-button housing (2) has a circumferential housing bottom (15) projecting radially inwardly from a housing wall inner surface (11b) at the housing actuation end (2b). having, which a first, the Gehäuseinsteckende (2a) facing bottom side (15a) and one of these in Direction of the actuating axis (10) opposite, the sebetätigungsende (2b) facing bottom side (15b).

Push-button (1) according to claim 7,

characterized in that

the housing bottom (15) has two in relation to the actuating axis (10) radially opposite, inwardly open through grooves (20) extending in the direction of the actuating axis (10) through the housing bottom (15) and one, preferably a circular cylindrical Groove peripheral surface (20a), two circumferentially opposed and spaced groove side surfaces (20b, c) have.

Push-button (1) according to claim 7 or 8,

characterized in that

the housing bottom (15) has two in relation to the actuating axis (10) radially opposite, inwardly open, Verriegelungshülsen receiving grooves (16) extending from the second bottom side (15b) in the housing bottom (15) into and in one Nutgrundfläche (16a) terminate, wherein the Verriegelungshülsenaufnahmenuten (16) each have two circumferentially opposite and mutually spaced groove side surfaces (16b) and a, preferably circular cylindrical groove peripheral surface (16c). 10. push button (1) according to claim 9,

characterized in that

the locking sleeve receiving grooves (16) each having a locking ridge (17) projecting from the groove base (16a) and the groove peripheral surface (16c) and disposed between the two groove side surfaces (16b), the locking ridge (17) having a housing operation end (2b) facing web spiral surface (17a), wherein Preferably, the screw axis of the web spiral surface (17a) is the actuating axis (10). Push-button (1) according to claim 10,

characterized in that

the web spiral surface (17a), viewed from the first push-button housing end (2a), is designed to increase in the unlocking direction (51).

Push-button (1) according to claim 10 or 11,

characterized in that

between each of the two groove side surfaces (16b) and the locking web (17) in each case a first and a second locking groove (18, 19) is formed.

Push-button (1) according to one of the preceding claims,

characterized in that

the actuating button (3) has an actuating button housing (25) and a cylinder core (4) mounted therein, preferably non-displaceably in the direction of the actuating axis (1), the actuating button

(3) can be unlocked by rotation of the cylinder core (4) relative to the push-button housing (2) about the actuating axis (10) in the unlocking direction (51), preferably first the cylinder core (4) relative to the actuating button housing (25) about the actuating axis (10 ) is rotatable in the unlocking direction (51) by a limited amount, and then the operation knob housing (25) with the cylinder core

(4) is rotatable in the unlocking direction (51).

Push-button (1) according to claim 13,

characterized in that

the cylinder core (4) is a lock cylinder core (4) of a cylinder lock, the lock cylinder core (4) being located about the actuation axis (10). rotatable with the operating button housing (25) is in communication, as long as no matching key is inserted into the lock cylinder core (4), and wherein the lock cylinder core (4) after insertion of the matching key relative to the actuating button housing (25) in the unlocking direction (51) is rotatable ,

Push button (1) according to claim 13 or 14,

characterized in that

the push button (1) has a spring (8), in particular a leg spring (8), with which the cylinder core (4) relative to the actuating button housing (25) against the unlocking direction (51) is drivably connected.

Push-button (1) according to one of claims 13 to 15,

characterized in that

the actuating button (3) has a pipe socket (26) which protrudes from the actuating button housing (25) in the direction of the actuating axis (10), the pipe socket (26) having two locking strips (32) extending radially opposite one another and parallel to the actuating axis (10). which protrude from a Wandungsaußenfläche (31 a) of a pipe wall (31) of the pipe socket (26) and which each have a free last end face (32 a).

Push button (1) according to claim 16,

characterized in that

the locking strips (32), in particular the strip end faces (32a), in the actuated and locked state of the actuating knob (3) in the direction of the actuating axis (10) aligned with the bottom surface (23) of the push-button housing (2) and preferably slightly spaced therefrom are such that the movement of the actuating knob (3) in the direction of the push button actuating direction (74) is locked and the locking strips (32), in particular the strip end faces (32a), in the unlocked state of the actuating knob (3) in the direction of the actuating axis (10) are arranged in alignment with the through grooves (20) of the push-button housing (2), so that the movement of the actuator - Actuation button (3) in the push button actuation direction (74) is no longer locked.

Push-button (1) according to one of claims 13 to 17,

characterized in that

the cylinder core (4) has two radially opposite actuating segments (50) each having a free, end-side segment actuating surface (50e), wherein the segment actuating surface (50e) seen in unlocking (51) has a, preferably planar, cylinder core stop surface (52) and a having adjoining cylinder core surface (53), wherein preferably a screw axis of the cylinder core surface (53) corresponds to the actuation axis (10) and preferably the cylinder core surface (53) left rising or rising against the unlocking (51) viewed from the first push button housing end (2a) out, is trained.

Push-button (1) according to claim 18,

characterized in that

the pitch direction of the cylinder core spiral surfaces (53) is opposite to the pitch direction of the web spiral surfaces (17a).

20. Push-button (1) according to one of the preceding claims,

characterized in that

the push button (1) has a locking sleeve (5) which with the actuating knob (3) about the actuating axis (10) non - rotatable and in Push button operation direction (74) back and forth slidably in communication.

Push button (1) according to claim 20,

characterized in that

in the locked state of the push button (1) the actuating button housing (25), the locking sleeve (5) and the push-button housing (2) and preferably the cylinder core (4) to each other about the actuating axis (10) are non-rotatable.

22. push button (1) according to claim 20 or 21,

characterized in that

in the unlocked state of the push button (1) the actuating button housing (25), the locking sleeve (5) and the push-button housing (2) to each other about the actuating axis (10) are non-rotatable.

Push-button (1) according to one of claims 20 to 22,

characterized in that

the locking sleeve (5) seen in the direction of the actuating axis (10) has a first locking sleeve end (5a) and a second locking sleeve end (5b) lying opposite thereto, and

in that the locking sleeve (5) has a sleeve wall (55) which has a wall outer surface (55a) and a first wall end face (55c) and a second wall end face (55d).

Push button (1) according to claim 23,

characterized in that

the locking sleeve (5) has at its second locking sleeve end (5b) two locking lugs (56) located radially opposite each other, which in the radial direction project outwardly from the outer wall surface (55a), the locking pegs (56) respectively a pin spiral surface (56d) facing the first locking sleeve end (5a), wherein in each case a pin spiral surface (56d) is formed corresponding to one of the two rib spiral surfaces (17a).

Push button (1) according to claim 24,

characterized in that

a screw axis of the trunnion surface (56d) is coaxial with the actuation axis (10) and the trunnion surface (56d) has the same pitch and the same pitch direction as the corresponding land coil surface (17a).

Push-button (1) according to claim 24 or 25,

characterized in that

the locking pins (56) in the locked position of the push button (1) are each arranged within one of the two first locking grooves (18), so that the locking sleeve (5) around the actuating shaft (10) is non-rotatably connected to the push-button housing (2) ,

Push-button (1) according to one of claims 24 to 26,

characterized in that

the locking pins (56) in the unlocked and unactuated position of the push button (1) are each arranged within one of the two second locking grooves (19), so that the locking sleeve (5) around the actuating axis (10) non - rotatable with the push button housing (2) in Connection stands.

28. push button (1) according to any one of claims 20 to 27,

characterized in that the locking sleeve (5) with a spring, in particular a compression spring (7), relative to the actuating button (3) against the Druckknopfbetä- tion direction (74) drivably in communication.

Pushbutton (1) according to one of claims 23 to 28,

characterized in that

Sleeve wall (55) has two radially opposite ledge guide slots (57) extending parallel to the actuating axis (10) from the first locking sleeve end (5a) into the sleeve wall (55) and each having a Schlitzendkante (57a), wherein the locking strips (32 ) of the actuating button (3) are arranged within the strip guide slots (57), so that the actuating button (3) with the locking sleeve (5) about the actuating axis (10) is rotatably in connection.

Push-button (1) according to claim 29,

characterized in that

a first wall end face (55c) of the locking sleeve (5) has two guide sections (58) separated from each other by the ledge guide slots (57), each guide section (58) having a first, as seen from the respective ledge guide slot (57) in the unlatching direction (51); preferably flat surface, surface (59a), an adjoining transition surface (59b), a subsequent second, preferably planar, surface (59c), an adjoining locking sleeve spiral surface (59d) and an adjoining third, preferably planar surface (59e).

Push button (1) according to claim 30,

characterized in that the transition surface (59b), the second surface (59c) and the locking sleeve helical surface (59d) form a detent recess (78), in which an actuating segment (50) of the key cylinder core (4) is engaged in the locked state of the push button (1) .

wherein preferably the cylinder core stop surface (52) abuts the second planar surface (59c) and the cylinder core surface (53) abuts the lock sleeve coil surface (59d).

32. push button (1) according to claim 30 or 31,

characterized in that

the locking sleeve spiral surfaces (59d) are each formed corresponding to one of the two cylinder core spiral surfaces (53) of the lock cylinder (4).

33. push button (1) according to any one of claims 26 to 32,

characterized in that

the locking sleeve (5) by rotation of the cylinder core (4) in the unlocking (51) by the limited amount relative to the locking sleeve (5) in the push button actuating direction (74) relative to the actuating knob (3) is driven such that the locking pin (56) drive out the first locking grooves (18).

34. push button (1) according to claim 33,

characterized in that

the locking sleeve (5) can be driven by further rotation of the cylinder core (4) in the unlocking direction (51) together with the actuating button housing (25) and the locking sleeve (5) such that the locking pins (56) are axially aligned with the second locking grooves (19) are arranged and at least partially engage in this.

35. push button (1) according to claim 34, characterized in that

the locking sleeve (5) by further rotation of the cylinder core (4) in Entriegelungsrichtung (51) together with the actuating button housing (25) and the locking sleeve (5) is driven such that the locking pin (56) axially aligned with the second locking grooves

(19) are arranged and at least partially engage in it, so that the locking sleeve (5) around the actuating axis (10) undetachably connected to the push-button housing (2) is in communication. 36. push button (1) according to claim 35,

characterized in that

upon rotation of the locking sleeve (5) relative to the push-button housing (2), the pin turn surfaces (56d) of the locking pins (56) slide along the web spiral surfaces (17a) of the locking webs (17) so that the locking sleeve (5) simultaneously rotates in push-button - Actuating direction (74) relative to the actuating knob (3) and the push-button housing (2) is linearly driven, so that preferably the locking sleeve (5) from the actuating segments (50) of the cylinder core (4) is spaced.

37. push button (1) according to any one of claims 13 to 36,

characterized in that

the push button (1) is designed such that the cylinder core (4) automatically, in particular by spring force, returns from its unlocked position to its starting position, and preferably the locking pins (56) completely into the second during the turning back of the cylinder core (4) Engage locking grooves (19).

38. push button (1) according to any one of claims 27 to 37,

characterized in that the push button (1) is designed such that the locking pins (56) move out of its unactuated into its actuated position out of the second locking grooves (19) by moving the actuating knob (3).

39. push button (1) according to claim 38,

characterized in that

the push button (1) is designed such that the actuating button (3) and the locking sleeve (5) after the retraction of the locking pin (56) from the second locking grooves (19) and preferably during the actuating stroke selbststätig, in particular driven by spring force against Unlocking direction (51) are rotated back into an intermediate position in which the locking pins (56) are arranged axially in alignment with the locking webs (17).

40. push button (1) according to one of the preceding claims,

characterized in that

the push button (1) is designed such that the actuating knob (3) selbsttätig, in particular by spring force, against the push button actuation direction (74) is moved from its actuated position to its axial starting position.

41. Push-button (1) according to claim 40,

characterized in that

the push button (1) is designed such that the locking sleeve (5) automatically after the operating stroke together with the operating knob (3) counter to the push button actuating direction (74) is moved until the locking pin (56) abut the barrier webs (17) and then the actuating button (3) is automatically moved relative to the locking sleeve (5) against the push-button actuating direction (74).

42. push button (1) according to claim 41,

characterized in that

the push button (1) is designed such that the actuating button (3) is automatically moved counter to the push button actuating direction (74) relative to the locking sleeve (5) such that the locking bars (32) are moved out of the passage grooves (20).

43. push button (1) according to claim 42,

characterized in that

the push button (1) is designed such that, as soon as the locking strips (32) are arranged completely outside the passage grooves (20), the actuating button housing (25) together with the locking sleeve (5) automatically, in particular driven by the torsion compression spring (6), against the unlocking (51) is rotated back into the non-actuated and locked starting position.

44. push button (1) according to claim 43,

characterized in that

the push button (1) is designed such that the locking sleeve (5) automatically returns against the unlocking direction (51) against the push button actuation direction (74) back to its starting position during the turning back.

45. door, hood, cover or flap, in particular an agricultural vehicle, e.g. a tractor, or a construction machine, comprising a lock (100), in particular a rotary latch lock, and a push button (1) for unlocking the lock (100),

characterized in that

the push button (1) is designed according to one of the preceding claims.