Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B81/00—Power-actuated vehicle locks
  • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
  • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B81/00—Power-actuated vehicle locks
  • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
  • E05B81/32—Details of the actuator transmission
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
  • E05B85/20—Bolts or detents
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B81/00—Power-actuated vehicle locks
  • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
  • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
  • E05B81/15—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt with means preventing the detent to return to its latching position before the bolt has moved to the unlatched position
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B81/00—Power-actuated vehicle locks
  • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
  • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
  • E05B81/21—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening with means preventing or detecting pinching of objects or body parts
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T70/00—Locks
  • Y10T70/50—Special application
  • Y10T70/5889—For automotive vehicles

Definitions

• Lock in particular for vehicle doors, flaps or the like.
• the invention is directed to a lock of the type specified in the preamble of claim 1.
• the combined motorized closing and opening aid provided increases the comfort when closing and opening the door.
• a control unit sets a transmission in motion in both the one running direction and in the opposite direction.
• This transmission has two output elements, one of which functions as a closing aid and the other as an opening aid and therefore is to be referred to below as the “closing element” or “opening element”. Both output elements are permanently connected to the gearbox and are therefore always set in motion at the same time.
• the invention has for its object to develop a reliable lock of the type mentioned in the preamble of claim 1, the space-saving design. This is achieved according to the invention by the measures mentioned in claim 1, which have the following special significance.
• a single driven wheel on which these elements sit together is sufficient to arrange the two output elements. This saves the previously required second driven wheel and saves space. If there is a rotation of the driven gear intersecting the movement paths of the two output elements does not interfere for the following reason.
• the closing element causing the closing process lies in a first rotary plane in the lock, which is to be called the “closing plane”, while the opening element causing the opening process is located in a second rotational plane, which is offset axially, and is to be called the “opening plane”.
• the catch has a driver arranged in the locking level.
• the driver is arranged in the open position of the rotary latch outside of the rotary path from the closing element, but it is located in the preliminary latching position and in the main latching position of the rotary latch in the rotary path from the closing element.
• the pawl has a release finger positioned in the opening plane for the opening element.
• the opening element is resiliently received in the driven wheel and is automatically adjusted with respect to the release finger due to its suspension.
• 1 a shows the front view of the lock when the catch is in its open position
• Fig. 6a + 6b the front and rear view of the lock in an operating phase, where the driven wheel has been transferred to its other closed end position and stopped there, the rotary latch having fallen into its main detent position, and
• Fig. 7a + 7b the front and rear view of the lock after turning the driven wheel back to the open end position, but in a so-called "snow load", where due icing of the rotary latch or a snow load acting on the tailgate, the rotary latch has not moved back to its open position due to its spring loading, but is released by a pawl.
• the lock according to the invention shown in the figures is intended to sit on a tailgate of a vehicle, not shown. Such a lock could of course also be attached to a door.
• the tailgate In Fig. La and l b, the tailgate is in the open state.
• a rotary latch 10 is mounted on an axis of rotation 18. The rotary latch 10 is under a spring load illustrated by the arrow 32. When the flap is open, the catch 10 is held by the spring load 32 in an open position illustrated by the auxiliary line 10.1.
• the rotary latch 10 has a receptacle 1 1 for a striker 30 which is fixed in place on a body 33 of the vehicle, indicated by dash-dotted lines.
• a striker 30 which is fixed in place on a body 33 of the vehicle, indicated by dash-dotted lines.
• one of the stirrup legs has been broken away, which is why the stirrup web 31 highlighted by hatching is visible.
• the bow bar 31 is at a distance from the lock. If the flap is closed in the direction of arrow 34 of FIG. 1 a, the strap web 31 moves into the receptacle 11 and rotates the latch 10 up to the pre-latching position shown in FIGS. 4a and 4b and illustrated by an auxiliary line 10.2, which of a pawl 20 is determined.
• the pawl 20 is rotatably supported at 29 in the housing 19 and is under the action of a spring, not shown.
• the spring exerts on the pawl 20 a spring load indicated by the force arrow 22.
• the pawl 20 also has a release finger 23 arranged in its extension, which is supported in the open position 10.1 of FIGS. 1 a and 1 b on an output element 50 of a uniform output gear 40 to be described in more detail. There is then a ready-to-lock position of the pawl 20, illustrated in FIGS. 1 a and 1 b by the auxiliary line 20. 1.
• the open position 10.1 of the rotary latch 10 is determined in that a driver 14 arranged on the rotary latch 10 is supported on a stepped shoulder 24 of the pawl 20.
• the pawl blocking point 21 is formed from the inner end of the pawl shoulder 24.
• the blocking point 21 engages behind a pre-locking means 12 provided in the catch 20. Then a claw delimiting the receptacle 1 1 of the catch 10 engages the strap web 31 of the retracted strap 30. Despite this intervention by the The bracket 30 in the rotary latch 10 still has a gap between the tailgate and the body 33. It is now important to close this gap as well, which is done using a combined closing and opening aid.
• the closing and opening aid is integrated in the driven wheel 40 and the driven wheel 40 is constructed from two disks 41, 42 to be described in more detail.
• the driven wheel 40 can, however, also be designed as a compact structure, where the two disks 41, 42 are always moved in conformity and could therefore also be of appropriate design without further notice.
• This exemplary embodiment which is not shown in more detail, is first to be described, this description also applying to the exemplary embodiment illustrated, with the two disks 41, 42 which are movable relative to one another in some cases. This case-by-case mobility will be described in detail later.
• the closing and opening aid comprises a motor, not shown, and a transmission, not shown, at the end of which the driven wheel 40 is seated.
• the driven wheel 40 In the open position 10.1 and in the pre-locking position 10.2 of the rotary latch, the driven wheel 40 is in its one end position, which is illustrated by the auxiliary line 40.1. Because this end position 40.1 according to FIGS. 1 a and 1 b is present with the door open, it should be referred to as the “open end position”.
• two driven elements 50, 60 are integrated, of which the first element 50 is effective during the closing process and therefore “ Opening element "should be called. If a sensor detects the pre-locking position of FIGS.
• the motor is rotated in one direction by a control unit (not shown in more detail), as a result of which the driven wheel rotates in one direction of rotation, which in FIGS Arrow 44 is marked.
• the first output element 50 which determines the closing process, is to be referred to as the “closing element”, while the second output element 60, which is used for the opening process, is to be called the “opening element”.
• the closing element 50 is associated with the already mentioned one disk 41 from the driven wheel 40 and consists of a cam which projects on the rear side of the disk and which is to be called “locking cam”. For the same reason, this disk 41 is referred to as “cam disk”.
• This locking cam 50 is located outside the actual plane of rotation of the two disks 41, 42 and lies in the same plane as the rotary latch 10 with its contour-side profile parts, to which, in addition to the pre-catch 12 already described, the driving tooth 14 and a main catch to be described 13 belong.
• the rotational path 51 of the locking cam 50 during the rotation 44 of the driven wheel 40 is shown by an arrow 51. While in the open position 10.1 of FIG. 1b the driving tooth 14 is still outside of the rotation path 15 from the closing cam 50, which is also shown in dash-dotted lines there, the driving tooth 14 in FIG. 4b projects into the rotation path 51. Therefore, during this rotation 44, as shown in FIG. 5b, the locking cam 50 abuts the driving tooth 14. As a result, the rotary latch 10 is taken along and pivoted in the direction of the movement arrow 15 of FIG. 5b against its spring load 32.
• the motor stops when the driven wheel 40 has reached its other end position, which is identified by the auxiliary line 40.2 in FIGS. 6a and 6b. This end position
• the second output element located on the driven wheel 40 namely the opening element 60
• the axial offset between the closing plane and the opening plane is best 2 on the basis of the pawl 20.
• the pawl blocking point 21 is arranged in the closing plane of the rotary latch 10
• its release finger 23 is axially offset and lies in the opening plane in which the opening element 60 is also located in the present case consists of a slide which is accommodated in a channel 35 which can best be seen in Fig. 2 and which is longitudinally guided therein
• the slide 60 is under the action of a spring 62 recognizable in FIG. 2, which tends to push the slide end 61 out over the outline 36 of the slide disk 42, as can be seen from FIG. 5a.
• the extended position of the slide end 61 marked by the auxiliary line 61.1 is present.
• the slide end 61 In the open end position 40.1 of the driven wheel of FIGS. 1 a and 4 b, the slide end 61 is in alignment with the release finger 23 of the pawl 20. The release finger 23 then exerts pressure on the slide 60, causing the slide 60 to move through it Auxiliary line 61.2 illustrated depressed position is pressed. During the above-described motor rotation 44 of the driven wheel 40, the slide end 61 leaves the release finger 23, which can then be supported on the aforementioned contour 36 of the slide disc 42, specifically at the support zone 37 designated in FIG. 2.
• the support zone 37 in FIG Recognizable spring 62 generates a spring force which is indicated by the force arrow 63 in FIG. 5a and pushes the slide 60 back into its extended position 61.1. Through end stops, not shown, the slide end 61 protrudes in its extended position 61 .1 by a defined distance.
• the slide end 61 abuts the release finger 23 laterally and thereby lifts the blocking point 21 of the pawl 20 out of the preliminary catch 12 of the rotary latch 10. Then the rotary latch 10 can automatically return to its open position of FIG. 1 a due to its spring loading force 32. In this way, the slide 60 acts as an opening aid for the tailgate.
• the rotary drive for the driven wheel 40 acts on the slide disk 42.
• a toothed segment 39 is provided in the peripheral region of the slide disc 42.
• the rotation of the slide disk 42 is transmitted to the cam disk 41 by a special clutch, the structure of which can best be described with reference to FIGS. 1 b and 2.
• the coupling is designed as a special rotary guide, consisting of a pin 17 and a ring-segment-like slot 47.
• the pin 17 sits as 2 shows, on the inner surface 16 of the slide disc 42, which faces an analogous inner surface 26 of the cam disc 26. As a result, the pin 17 engages in the ring slot 47.
• a torsion spring not shown in detail, which strives to maintain the pin 17 on the first rotary stop 48 shown in FIG. 1b, which is formed by the one slot end of the slot 47.
• the rotation 44 is also transmitted to the cam disk 41 via the pin 47 abutting the first rotary stop 48, as can be seen from FIG. 5b. This remains until the described closed end position 40.2 of the driven wheel 40 of FIGS. 6a and 6b.
• the two disks 41, 42 move in conformity with one another; they act as if they were in one piece.
• the limited rotational mobility of the two disks 41, 42 is significant for the following reason.
• the locking cam 50 has moved away from the driven gear 40 via the tooth tip 25 of the driving tooth 14. Not only the front end 52, but also the rear end 53 of the locking cam 50 lie beyond the tooth tip 25 of the driving tooth 14.
• the locking cam 50 has produced an “overstroke” designated by a distance 54 in FIG. 6b.
• the slide end 61 has already moved into its extended position 61.1 in Fig. 5a due to the spring load 63. Because of this overstroke 54, the reverse rotation also occurs in the normal case 45 of the driven gear 40 is already what can be seen in the snow load situation according to FIGS. 7a and 7b even in the open end position 40.1 of the driven gear 40. The following takes place in detail.
• the special feature is that in the case of snow load, according to FIG. 7 a, the slide end 61 remains in its extended position 61.1, although a restoring force 22 of the pawl 20 acts on it from the release finger 23.
• the slider 60 is namely not longitudinally displaceable in this snow load case, but is locked in its extended position 61.1.
• the following simple, space-saving resources are used in the invention.
• the slide end 61 is provided with an axial projection 64 pointing in the direction of the axis 27 arranged there in dash-dotted lines.
• the axial front end of this axial projection 64 is highlighted in FIGS. 2, 5b, 6b and 7b by dot hatching.
• the axial projection 64 protrudes beyond the inner slide surface 16 there in the direction of the adjacent cam disk 41.
• the inner surface 26 of the cam disk 41 is provided with a channel extension 28 into which the axial projection 64 from the slide end 61 can be impressed. This is always the case when the guide channel 35 of the slide disk 42 is aligned with the channel extension 28 of the cam disk 41. This is always the case in normal operation during the closing process, but only in the closing phase due to the overstroke 54 during the opening process.
• the axial projection 64 which is highlighted by hatching, has finally moved into the other open-end position 40.1 described because of its forced entrainment in the slide disc 42.
• Her inward-pointing support point 65 is moved onto the guide segment 55 in the circumferential area of the cam disk 41 and thus blocks the ability of the slide end 61 to be pressed in.
• the restoring force 22 of the pawl 20 can then push the slide end 61 back into the driven wheel 40 via the release finger 23.
• the slide moves inwardly in its guide channel 35, which is shown in dashed lines in FIG. 7a, and the axial projection 64 plunges into the channel extension 68 aligned therewith.
• the operating conditions shown in FIGS. 1 a and 1 b are again present.
• the lock is ready for use again.

Landscapes

• Lock And Its Accessories (AREA)
• Power-Operated Mechanisms For Wings (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=34961482

Family Applications (1)

Country Status (7)

Families Citing this family (26)

Family Cites Families (9)

• 2004
  • 2004-03-19 DE DE200410013671 patent/DE102004013671B4/de not_active Expired - Fee Related
• 2005
  • 2005-03-04 CN CN2005800087610A patent/CN1934328B/zh not_active Expired - Fee Related
  • 2005-03-04 AT AT05715717T patent/ATE371792T1/de not_active IP Right Cessation
  • 2005-03-04 US US10/593,056 patent/US20080271503A1/en not_active Abandoned
  • 2005-03-04 EP EP20050715717 patent/EP1727953B1/fr not_active Not-in-force
  • 2005-03-04 WO PCT/EP2005/002274 patent/WO2005093195A2/fr active IP Right Grant
  • 2005-03-04 DE DE200550001386 patent/DE502005001386D1/de active Active
  • 2005-03-04 KR KR1020067021415A patent/KR20060135886A/ko not_active Application Discontinuation

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events