CZ263396A3 - Closing device with a closing cylinder and push-button manipulator for simultaneous opening of lock members - Google Patents

Abstract

A closure device has a closure cylinder that acts at the same time as a push handle for actuating lock members. The closure cylinder is radially subdivided into a circumferential cylinder guide and into a central cylinder core. The cylinder core may be moved by a key between a locked and an unlocked position of rotation, but when the key is removed the cylinder core is secured by holders to the cylinder guide in a fixed manner not only in the axial direction but also in the direction of rotation. An axial spring force that acts on the cylinder guide axially movable in the cylinder housing actuates the closure cylinder as a push handle. In order to create a reliable device that cannot be forced open, the push handle is made up of two axial sections, of which only the outer section is formed by the closure cylinder whose circumferential cylinder guide is mounted so as to rotate in the cylinder housing. The inner section is in turn radially subdivided into two parts and consists on the one hand of an axial central control bolt and on the other hand of a circumferential pressure bushing. The control bolt is secured to the driver against rotation and axial movements and is mounted in the pressure bushing in a rotary but axially fixed manner. In addition, the pressure bushing is guided in the cylinder housing so as to move in the axial direction but not to rotate. An axial coupling is arranged between the control bolt and the cylinder core and the spring-loaded pressure bushing is pressed by an axial lifting profile against the cylinder guide. When the outer section of the push handle is violently turned, the lifting profile makes the inner section of the push handle run freely in an overload state in which the closure cylinder can turn freely but ineffectively.

Description

Closing device with closing cylinder and pushbutton manipulator for simultaneous operation of lock links

Technical field

The invention relates to a closure device according to the preamble of the first claim, the closure cylinder of which has two different functions. One function is to operate the cylinder core with a key to adjust it in one of its pivotally mounted cylindrical guides between the locked and unlocked positions. The adjusting movement of the cylindrical core is transferred to a carrier which only cooperates with the locking elements in the unlocked position, in contrast to the locked position. A second function of the closing member is that the button manipulator can be pressed as a button against the axial action of the spring in the cylindrical liner, thereby actuating the lock members when the cylindrical core is in said unlocked position.

BACKGROUND OF THE INVENTION

The prior art button manipulator only contained a closing cylinder. The cylindrical guide was rotatable, but was axially rigidly connected directly to the cylindrical guide, and the driver was rotatably and axially rigidly engaged in the cylindrical core in order to be able to rotate the cylindrical core in a rotary manner. Pressing the button caused a direct axial effect of the spring on the cylindrical guide of the closing cylinder. The closing cylinder, in addition to its cylindrical guide, was axially displaceable when the button was pressed, but it was also rotatably guided in the cylindrical housing.

The pushbutton manipulators used as closing cylinders in the prior art closing devices have been exposed to the risk of breakage. The guides and catches housed in the cylindrical cores could be damaged by forcibly turning the cylindrical core to such a crowbar that the closing cylinder could no longer be used. Often replacement of individual parts of the equipment was not enough, but an overall replacement was necessary.

In other closing devices, for example DE 41 22 414, whose closing cylinders are not used at the same time as pushbutton manipulators for actuating the lock members, it is stated that the cylindrical cores and the rotating member in which the lock members are located are arranged overload. In this case, the cylindrical guide is provided on one side and the cylindrical sleeve on the other side with axial arms with a complementary profile which keeps the locking spring normally in engagement and thus keeps the cylindrical guide in a defined rotational position. When the cylindrical core is forcibly rotated with the pry bar, when the cylindrical core is blocked by deflected cylindrical guide retainers therein, the cylindrical core is pulled off the axis by the lifting profile. Said axial extension is used for this purpose. to disengage the axial coupling between the pivot member and the cylindrical guide. Thereafter, the closing cylinder becomes idle due to overload and allowed to rotate freely without bearing the rotary member.

The use of this known overload safety device is not possible in devices whose closing cylinder simultaneously performs the function of a pushbutton manipulator. The closing cylinder must be relieved manually of the spring pressure exerted on it axially so that its cylindrical core can carry out the necessary axial movements of the carrier intended for this purpose. In this way, it is necessary to abandon idling when the closing cylinders of the push-button manipulators are overloaded.

SUMMARY OF THE INVENTION The object of the invention is to provide a reliable closing device of undemanding size, as stated in the preamble of the first claim, which is not jeopardized by attempts to open and resists the forcible rotation of the closing cylinder without damaging its components.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION The present invention relates to a closing device having a closing cylinder and a button manipulator for simultaneously operating the lock members, in particular to perfectly close the rear of a motor vehicle, the closing cylinder being radially divided into two parts. connected to the cylindrical guide axially but mounted rotatably in the cylindrical guide and adjustable by a key between the locked and unlocked position in the cylindrical guide, but when the key is pulled out it is locked by stops in the cylindrical guide whose movement is transferred to the carrier the locking members in the unlocked position, while the closing cylinder is axially displaceable in the cylindrical housing and by the axial spring pressure on the internal stop is pushed out of the cylindrical housing, but its protruding end towards the actuator locking the articles can be pushed axially in the direction of the arrow against spring pressure in the cylindrical housing, whose essence is. that the closing cylinder constitutes only an axial outer section of the button manipulator, whose cylindrical guide is rotatably arranged in the cylindrical housing, while the outer section axially continues in an inner section which itself is radially divided into two parts, namely on one side a coaxial steering pin pivotally and axially rigidly connected to the carrier and, on the other hand, to a push-button insert which is rotatable with the control pin but fixedly mounted on an axis under axial spring pressure and axially displaceable in a cylindrical housing but guided non-rotatably; the third arrow of the outer section of the push button remains its inner section idle in case of excessive load, and a labyrinth guide is arranged between the carrier and the cylindrical bushing which retains the key-dependent pivoting adjustment of the carrier between the locked and unlocked position in the idle extended position of the pushbutton manipulator, but it prevents its axial operation.

BRIEF DESCRIPTION OF THE DRAWINGS

The closure device of the present invention will be described in more detail below with reference to the accompanying drawings in which: FIG

Giant. 1 is an axial section through the essential parts with the push-button manipulator fully extended with its components in their rest position and in the unlocked position after turning the key.

Giant. 2 shows an enlarged planar arrangement of the structural elements in a detailed section along the line II-Π in FIG. AND,

Giant. 3 is an internal end view of the device of FIG. 1 showing the rotated section line I-I in FIG. 1. wherein the unlocked pivot position is shown in dotted,

Giant. 4 is a partial view of the internal detail of the device of FIG. 1, when the components are in their normal rest position,

FIG. 5 is a cross-sectional view of the axis of the device in front view when the structural members are in a position opened by the use of violence that is identical to the position in FIG. 1 when the operating button is extended.

Giant. 6 shows the detail shown in FIG. 4 when the components are in a position corresponding to the forcible opening.

Giant. 7 shows a detail corresponding to the device in FIG. 2 in the position in FIG. 5 in longitudinal section along line VI-VIL

Giant. 8 shows a vertical section through the axis of the device as in FIG. 1 in the retracted position of the operating button, wherein the components can be seen from the same arrangement as in FIG. 3 in the unlocking position of the operating button, which is indicated by dashed lines and

Giant. 9 is a detailed cross-sectional view of the device of FIG. 8 when the operating button is inserted according to line IX-IX.

Examples of findings

In FIG. 1 shows a closure device according to the invention with a motor vehicle rear bonnet flap 11 which can help to lock the rear bonnets of the cams not shown (not shown). A push-button manipulator 21 is used to control the lock elements, which can be divided into two mutually overlapping axial sections 21, 22.

The button manipulator 20 is received in a cylindrical housing 10 mounted on a flap 11 in which a helical compression spring 12 is received. The compression spring 12 surrounds the inner section 22 of the button manipulator 20 and rests inside the cylindrical housing 10 with its resilient bottom on an annular washer 12 and a spacer ring 14 extending into the inner wall of the cylindrical housing 10. The direction of the first arrow 12 in FIG. 1 which simultaneously affects the axial outer section 21 of the button manipulator 20. This pushes the button manipulator 20 out of its extended position in the cylindrical housing 10, as seen in FIG. However, it can be pushed according to FIG. 8 shows the actuating second arrows 22 into the cylindrical housing 10. When the components are in the unlocked rotational position when actuated by the second arrow 22, the carrier by means of the working arm 51 only affects the locking member 22 on the axis 52 in the initial position. In FIG. 8 shows the retracted position of the button manipulator 22.

The outer section 21 of the button manipulator 20 consists of a closing cylinder 22, which is generally divided into two radial portions, namely a circumferential cylindrical guide 22 and a cylindrical core 32 in the center of the axis. The cylindrical core 32 is axially rigidly connected to the cylindrical guide 31, which on one hand secures the circlip 33 circumferentially in the groove of the cylindrical core 32. At the other opposite end of the closing cylinder 22 the shoulder of the collar 34 rests on the sealing ring 12 in cylindrical guide 21

The cylindrical core 22 is rotatably supported in the cylindrical guide 21a by means of a wrench 12 and can be moved from the unlocked position to the locked rotational position, as shown in FIG. 3 is shown by the adjustment position 22 of the working arm 51 of the carrier 22. 1 and 3, the locked rotation position is shown in solid line

21. while the unlocked position 21 'is shown in FIG. 3 is shown in dashed lines. When the key 17 is pulled out, the cylindrical core 21 is shown in dashed line only in the position 22 with the spring loaded by the stops and engaged with the locking channels.

22, thereby locking the cylindrical core 21. However, when the key 12 is fully inserted into the key hole 22, shown in FIG. 1, its stops are sorted around the periphery of the cylindrical core 32, and said rotary adjustment of the position 22 of the working arm of the cylindrical core carriers can be performed.

The cylindrical guide 21 is provided with an end flange 31 best seen in FIG. 4, by means of which the closing cylinder 22 in FIG. 1 can abut against the annular guide 18 on the inner stop 19 of the cylindrical sleeve 10. The inner stop 19 serves as a stop for the end flange 29 of the closing cylinder, which is applied by the axial spring 12 in the direction of the first arrow 11, thereby determining the extended position shown in FIG. 1. For this reason, the outer section 21 of the button manipulator 20 protrudes from one side of the trunk flap ven out of the existing housing lining 29 into which it can slide in the direction of the second arrow 23 in FIG. 8. The outer part of the closing cylinder 10 protruding outwards is provided with an armor sleeve 25 extending from the end flange 39 and extending to the end of the front face of the cylindrical core 22. The two rotational positions of the cylindrical core 32 can be adjusted by stops. by the spring pressure and the stop groove 27 in the inner cylindrical guide 31.

Similar to the outer section 21, the inner section 22 of the button manipulator 20 is also divided in two radial portions, on the one hand to the axially mounted control pin 42, on the other hand, to the thrust insert 91 circumferentially. The inner end of the control pin 92 is mounted and connected firmly to the carrier 50 by means of a snap ring, as best seen in FIG. 3. Complementary elements 49, 15 of the axial coupling 90 are provided between the outer end of the control pin 42 and the inner end of the cylindrical core 12, the embodiment of which is best illustrated in FIG. These elements consist of a clutch cam 45 diametrically arranged on the front side of the cylindrical core 32 and a diametrical recess 99 on the front side of the steering pin 92. The axial clutch 90 is normally engaged by an axial spring acting in the direction of the first arrow 15 on the vitreous section 22 independently whether it is an extended position in FIG. 1 or the retracted position in FIG. 3. Thus, the rotation of the cylindrical core 32 by the key is transmitted via the axial coupling 90 to the carrier 50 and its working arm 51 in FIG. 3, which means from locked to unlocked pivot position. Only in the unlocked rotary setting 51 ', according to FIG. 3, the working arm, when pressed in the direction of the second arrow 23, encounters one actuating arm 59 of the lock member 52 and with its opposite adjusting arm 55 performs a pivoting movement 52 in FIG. 8. As a result, the lock members are moved to a position releasing the luggage compartment flap 11.

In the push-button insert 91, the control pin 92 is rotatably mounted, but also the inner end of the cylindrical core 32 extends freely rotatably inside the push-button insert 91. However, the control pin 92 is immediately fixedly connected to the push-button insert 41. the push pin 41 and the radial inner cam 46 in the push-button insert 41. The push-button insert 41 can slide in the cylindrical housing 10 but cannot rotate. For this purpose, an axial guide channel 48 is formed inside the cylindrical housing 10 into which the radial outer cam 47 extending on the periphery of the push-button insert 41 extends. The outer end of the compression spring 12 extends into a continuous circular groove 49 The compression spring 12 bears there against the bottom of the groove.

A profiled recess 60 is formed between the front end of the extended push-button end member 22 on one side and the end flange 39, which is best illustrated in FIG. 4 and 6. The cylindrical guide 31 is provided with an axially profiled projection 61 and the button insert 41 with an axially profiled recess 62 with an opposite profile. Since the push-button insert 41 is actuated by a compression spring 12 in the direction in Ob. 4, indicated by the first arrow 15. the profiled recess 62 attempts to engage the profiled projection 61. In normal rest position, this engagement position is shown in FIG. 4. This position is also retained if, according to FIG. 8, said compression is repeated in the direction indicated by the second arrow 21 so that said position remains at rest. By engaging the existing profiled recess 60, the rotary alignment of the cylindrical guide 31 in the cylindrical sleeve 10 is also taken care of, since the push-button insert 41 is still maintained by said guides 47, 48 in a rotatable setting. However, these ratios change if a violent rotation according to the third arrow 28 occurs by the outer section 21 of the push button 22

Such a possible use of violence is shown in FIG. 5. using a burglary tool 58, for example a screwdriver, which is inserted into the key hole 38 of the cylindrical core 22. By means of the catches 36 extending into the blocking channel of the cylindrical guide 21, the cylindrical guide 31 is rotated together in the cylindrical housing 10. 62, as seen in FIG. Indeed, the projection 61 is provided with a trapezoidal profile on both sides with leading taper and automatically lifts out of the recesses 62 into this pivoting position. The recesses 62 are expediently provided on the sides 64 with corresponding opposite inclinations. Because also in this case, as shown in FIG. 5, the closing cylinder 30 remains supported by its end flange 39 on the inner stop 19. the push-button insert 91 is depressed, according to FIG. 6, depending on the height of the projection by the axial stroke 65 back against the action of the spring acting in the direction of the first arrow 11. Upon further forceful rotation of the closing cylinder 30, the push-button insert 41 rests with its face 66 in an expedient manner on the planar apex region of the axial projection 61. Such a pair of projection 61 and recess 62 is preferably formed in a double embodiment between the roller guide 31 and the push-button insert. as a result, after half forcibly rotating in the direction of the third arrow 28, the recesses 62 are now inserted briefly below the second projection 61, but at the next rotation they are automatically raised again after their lead-in bevels 63 and slanted sides 64. the insert 41 merely axial oscillation within the cylindrical sleeve 10 without affecting the rotational adjustment of the carrier 50.

Referring back to FIG. The axial stroke 65 extending away from the profiled recess 60 is greater than the engagement depth 59 between the engagement 49 and the cam 95 of the axial clutch 40. This releases the axial clutch 90 of FIG. 5 and thereby prevent the forcible rotation in the direction of the third arrow 28 in the outer section 21 of the pushbutton 20 to be transferred to the inner section 22. The disengaged steering pin 92 is unaffected by forcibly rotating in the direction of the third arrow 28 and In the case that the pre-work arm 51 of the carrier 50 is in the locked pivot position, the push-button manipulator 2Ώ remains in principle depressed. in the direction of the third arrow 21 without any effect on the lock member, as seen in FIG. 3. In this case, the working arm 11 is opposite the defining actuating arm 59 of the lock base member 53 in a radial plane in the displacement position by the already mentioned angle 12. Consequently, the actuation by the pushbutton in the direction of the second arrow 21 is ineffective.

This situation can only be changed by using the appropriate key 12. By inserting the key 12, as described above, the cylindrical core 12 can be rotatably adjusted while the embracing cylindrical guide H of the push-button insert 91 is held firmly against rotation by engagement of the existing lifting profile 60. Since the axial clutch 90 is now also engaged, the speed control of the control pin 92 is transmitted to the washing arm of the carrier 10, which is then transferred to the unlocked rotary setting 51 'as dashed in FIG. 3 and FIG. 8. By pressing the handle button 22, the working arm 51 'engages the actuating arm 51 of the lock base member 51, as already mentioned, thereby affecting the lock members.

According to the invention, there are protective measures that, irrespective of the rest position of the button manipulator 20, it is not possible in principle to control the rotation of the carrier 50. For this purpose, a labyrinth guide 70 arranged immediately on one side between the cylindrical sleeve 10 and the carrier 50 on the other side serves. As best seen in FIG. 5 and 8, the carrier 50 has the shape of a housing. The interior 68 of the housing extends beyond the inner end portion 69 of the cylindrical housing 10. Two axial grooves 71, 72 are formed in the circumference region of the housing end piece 69, into which, now optionally, the slider 57 extends in the housing 68. A bridge 73 exists between the two axial grooves 71, 72. In the rest position of the button manipulator 20 of FIG. 1 and 2, the slide slide 57 is located at the outer end of the axial groove 71 or 72, where the passage 74 is located in the slide slide 57. The passage 74 is disposed in accordance with the slide slide 57.

In the secured rotational adjustment of the components according to FIG. 1 and 2, the slide slider 52 is in the first axial groove 71 and can perform an ineffective axial movement for the lock elements, also shown in FIG. 2 in the direction of the second arrow 23. In order to achieve an effective rotational adjustment of the working arm 51 'of FIG. 3 and 8, the closing cylinder 30 needs to be operated with a key as described. The slider of the slide 57 thereby swivels in the region of the labyrinth guide 70 to the rotary setting 67 shown in FIG. 3, which planar progression is also shown in FIGS. 2 and 9 and is brought through the passage 74 to the indicated position 57 'by dash-dotted line in the second axial groove 72. By pressing the button manipulator 20 in the direction of the second arrow 22, FIG. 8, the slide of the slide 52 'is then moved into a parallel second axial groove 22 in the direction of the second arrow seen in FIG. 9, wherein the operating arm 51 'of the carrier 50 hits the control arm 54 of the lock member 55 of FIG. 8. The deflection movement 56 of the lock base member is thereby completed.

The bridge 73 separates the two axial grooves 71, 22, which is particularly important if the carrier arm of the carrier is in the locked pivot position 51 ·

If a violent rotation towards the third arrow 21 takes place on the outer section 21 of the button manipulator 20 of FIG. 5, occurs as a result of the axial stroke 65 of FIG. 6, shown in the direction of rotation, between the bridge 71 on one side and the slide 57 on the other side to the lateral overlap 75. As shown in FIG. As a result, the cone of the link 57 is then prevented from shifting towards the fourth rotary arrow by an angle 67 to the unlocked position 57 '. This is naturally correct only when the push handle 20 is pressed in the locked position of the slide slide 57. In this case, the slide slide 57 is lifted from the axial groove 71 by extending longitudinal feed while the respective working arm 51 is idle relative to the locking starting member 53 and ineffective axial movements in the offset plane of the angle in FIG. 3.

Claims (2)

PATENT CLAIMS change 15. 08. 95 Closing device with a closing cylinder (630) and a button manipulator (20) for simultaneously operating the lock members (53), in particular to perfectly close the rear hood of a motor vehicle, the closing cylinder (30) being radially divided into two parts, namely a cylindrical guide (31). ) on the circumferential side and on the concentric cylindrical core (32), which is axially rigidly connected to the cylindrical guide (31), but in which it is mounted rotatably and is in the cylindrical guide (31) between the locked and unlocked position adjustable, but when the key (17) is pulled out, it is locked by means of stops (38) in the cylindrical guide (31). the adjusting movement of which is transmitted to the carrier (50) which cooperates with the locking members (53) in the unlocked position (51 ') but does not cooperate in the locked position (51). whereas the closing cylinder (30) is axially displaceable in the cylindrical housing (10) and forced out of the cylindrical housing (15) by the spring in the axial direction of the arrow (15), however its protruding end for actuating the lock members (12) in a cylindrical housing (10), characterized in that the closing cylinder (30) forms only an axial outer section (21) of the button manipulator (20). whose cylindrical guide (31) can rotate in the cylindrical housing (10) so that the outer section (21) axially continues in the inner section (22), which ^r itself divides into two parts, namely a coaxial steering pin (on one side) 42) pivotally and axially rigidly connected to the carrier (50) and on the other hand with a push-button insert (41), in which the control pin (42) is rotatably supported but rigidly connected to the axis (43, 46) by spring pressure (12) ), and in the cylindrical housing (10) sliding axially but non-rotatably (47, 48), the control pin (42) being connected via an axial coupling (40) to the cylindrical core (32), and between the push-button insert (41) under the pressure of the spring (12) and the cylindrical guide (31), a lifting profile (60) is formed which, when forcibly rotating towards the third arrow (28) of the outer section (21) of the pushbutton manipulator (20) overload while at the same time it lays out a labyrinth guide (70) between the gripper (50) and the cylindrical bushing (10), where the labyrinth guide (70) allows the position of the adjuster (67) of the gripper (50) to be retained (20), whose axial action in the direction of the second arrow (23), however, prevents. Device according to claim 1, characterized in that the labyrinth guide (70) is provided with a slide gate (57) on the carrier (50) or on a cylindrical bushing and two parallel slide blocks (57, 57 ') engaging optionally axial grooves (71, 72) on the cylindrical bushing (10) or on the carrier, the two axial grooves (71, 72) on one side in the position of adjustment (67) of the carrier (50) being spaced apart at a corresponding angular distance and on the other side the outer groove ends are provided with a passage (74) therebetween which allows the rotary slide (67) to be rotatably adjusted (57, 57 ').