EP2019893A1

EP2019893A1 - Control for the electrical actuation of a lock on a lid or on a door in a vehicle

Info

Publication number: EP2019893A1
Application number: EP07723483A
Authority: EP
Inventors: Peter Ulomek
Original assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Current assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Priority date: 2006-05-24
Filing date: 2007-03-22
Publication date: 2009-02-04
Anticipated expiration: 2027-03-22
Also published as: US7884293B2; DE102006024292A1; DE502007005008D1; CN101454529A; WO2007134663A1; EP2019893B1; CN101454529B; ATE480684T1; US20090090143A1

Abstract

Such a control (10) firstly has a control housing (11) with a control rocker switch (21) which is mounted on the control housing in such a way that it can be rocked and at least two electrical wires in the interior of the housing, which protrude from the control housing (11) and are attached to an electrical drive of one lock. An electrical switch which in turn has a switch housing with a ductile snap disc (40), which interacts with at least two rest contacts as articulated contact when a switch actuator deforms the snap disc, is normally a part of this control. The rest contacts are connected to the wires in the control housing (11). In order to manufacture an economical and space-saving device, it is proposed that the control housing (11) is also used as the switch housing and that the control rocker switch (21) is also utilized as the switch actuator. That way the rest contacts of the switch and the wires are formed from one part in the control housing (21) and make up a grill insert in the control housing (21). The control housing (21) has a support bearing (37) in the area of the grill insert, at which the snap disc (40) is supported with its bearing points.

Description

Handle for electrically actuating a closure on a flap or door in a vehicle

The invention is directed to a handle specified in the preamble of claim 1 Art., Which can be found in DE 102 02 371 B4.

In the known from DE 102 02 371 B4 removable handle of this type, the handle housing is provided with a manually operable handle rocker, which is pivotally mounted in the handle housing. There are at least two electrical lines in the handle housing, which lead to an electric drive of the closure. Inside the handle housing is a microswitch, which has a deformable snap disc in its switch housing, which generates a movable contact in the microswitch. In the switch housing then at least two normally closed contacts are provided, which are connected to the lines in the handle housing. The handle rocker acts on a switch actuator in the micro-switch, which leads to the deformation of the snap-action disc. In a rest position the snap disc takes a one-sided arched shape. By the Schalterbetätiger the snap disc is deformed and enters a flat or in a counter-curvature position having. As a result, the microswitch is transferred from a non-contact rest position to a contact-giving work position. This handle numerous items are provided, which are space consuming.

From DE 102 41 220 Cl a snap-action disc is known, which in addition to the digital signal according to the aforementioned rest position and working position also a can generate analog signal. For this purpose, a dome-shaped area with two surfaces on the snap-action disc is proposed.

The DE 198 23 894 Cl shows a curved snap disc with at least two contact points for a support bearing. At least the one support element is used as a fastener for the snap disk. For this purpose, the fastener is connected via webs with one of the contact points.

From DE 10 2004 040 395 Al an electrical pressure switch is known which has a curved snap-action disc in the switch housing under a pressure surface. The switch housing includes a socket on which the push button is supported via an elastomeric bellows. The bellows is surrounded by a perforated lid, from which protrudes the push button. The lid has lugs that engage under the base after assembly of the housing. A handle with a handle rocker is not provided here.

The invention has for its object to develop a space-saving, inexpensive handle mentioned in the preamble of claim 1. Art. This is achieved by the measures specified in claim 1, which have the following special significance.

In the invention, the handle housing directly has the function of a switch housing, because it has directly the support bearing for contact points of the snap-action disc. Then the handle rocker also acts as a switch operator. Then, the invention proposes integrally form the normally closed contacts of the switch and the lines in the handle housing and to be arranged as an insert grid inside the housing. For the insert grid sufficient linear strands, which are optionally cranked to act below the snap disc as normally closed contacts. The outer end pieces of these linear, current-conducting strands then serve as web contacts for electrical couplings to be connected to the grip housing. After production of the handle housing with integrated insert grid, it is then only necessary to arrange the snap-action disc on the support bearing and then place the handle rocker on the handle housing. These are few, easy to handle components that can be assembled quickly and space-saving.

Further measures and advantages of the invention will become apparent from the dependent claims, the following description and the drawings. In the drawings, the invention is shown in several embodiments. Show it:

1a is a cross section through the handle according to the invention, when the handle rocker is in its rest position,

Fig. I b the same cross-section through the handle, when the handle rocker has been transferred to their contact-making work position,

Fig. 2 is a perspective view of the cup-shaped

Handle housing with its internals, before connection with the acting as a lid handle rocker,

Fig. 3 a in injection molding of the handle housing in

Housing interior lying Combined insert of Fig. 2,

4 shows a first punched grid, which is located in the interior of the combination insert of FIG. 3, in order to be able to cooperate with an already recognizable from FIG. 2 snap disk in the case of actuation,

5 is a perspective rear view of the associated handle rocker for the handle housing of FIG. 2, wherein also the position of the stamped grid according to FIG. 4 is illustrated in the installed state, 6 is a perspective view similar to FIG. 2, a second embodiment of a handle housing,

7 shows the rear view of a handle rocker for the handle housing of FIG.

6

8a + 8b show two different embodiments for an insert grille in the handle housing, which is brought into the housing interior before injection molding or after injection molding and cooperates with a snap disk,

9a is a perspective view of another

Embodiment of an insert grid without snap-action disc,

Fig. 9b, the insert grid shown in Fig. 9a, after a

Snap disk has been launched and

Fig. 10, in an analogous to Fig. 9b representation, another

Embodiment of an insert grid with a cooperating snap disk.

The handle 10 shown in FIGS. 1a, 1b is mounted in the region of the tailgate of a vehicle and serves to open the tailgate. The handle 10 serves to electrically actuate a closure which is effective between the tailgate and the body of the vehicle. The handle 10 consists of a cup-shaped lower handle housing 11 and a handle rocker 21, which acts as a lid for the shell 11.

As shown in FIG. 5, the handle rocker 21 is produced in a so-called multi-component injection molding technique. It consists of a hard component 20, which both the central region 23 shown in Fig. Ia, serving as a manual handle produced as well as the removable from Fig. 5 pivot bearing parts 24 on the back of the handle rocker 21 forms. The pivot bearing parts 24 consist of two bearing blocks, which project on the underside. The other component of this injection molding technique is a soft component 22, which produces a circumferential elastomeric edge region 25 according to FIGS. 1 a and 5. This soft component 22 engages in a central strip 26 and the underside of the central region 23 and formed from this material also a particular, from Fig. Ia and 5 apparent actuating tappet 27 on the underside of the handle rocker 21st

The edge region 25 formed from the soft component 22 surrounds the central region 23 on the frame side. During assembly of the handle 10, the elastomeric frame is placed on a circumferential shell edge 15 of the grip housing 11 shown in FIG. 2 and welded thereto. The latter can be done in particular by laser welding. To have, as can be seen from Fig. Ia, the edge region 25 of the handle rocker 21 and the shell edge 15 from the handle housing 1 1 a complementary wave-shaped labyrinth profile.

The handle housing 1 1 has inside the housing 55 two pivot abutment members 14 which come in the aforementioned assembly with the pivot bearing parts 24 of the handle rocker 21 in engagement. These abutment members 14 consist in the present case of two bearing shells 24 receive a web pivotally on the aforementioned bearing block 24 of the pivot bearing parts.

As shown in FIG. 2, a combination insert 30 is integrated in the interior of the housing 12, one component of which is an insert grid 31.1 consisting of two linear metallic conductors 32.1, 33.1, which can be cranked in one another. The two conductors 32.1, 33.1 are pre-enveloped by an electrically insulating mass, which is done for example by encapsulation. The resulting structure 50 is shown in Fig. Ia thick / thin hatched. Namely, the prefabricated composite insert 30 is positioned correctly in an injection mold, where the handle housing 11 is then produced. In the finished product then protrude end pieces 34 from the insert grille 31.1 from the handle housing 1 first out, as can be seen Fig. I a. In the region of these end pieces 34, a sleeve 12 is formed from the housing material, which then has the function of an electrical connector in connection with the end pieces 34. At the opposite end are initial pieces 35.1, 36.1 of the two conductors 32.1, 33.1 which cooperate in a manner to be described in more detail with a snap-action disc 40.

The snap disk 40 is, seen in plan view, designed as a four-beam star whose four radiating ends create contact points 41. The snap disc is provided to its disc top 42 out with a dash-dotted lines in Fig. 4 illustrated curvature 43, which can also be seen in Fig. 1. In the center of curvature, there may be a dent 44, which contributes to the stability of the curvature 43. The contact points 41 located at the beam ends are connected to one another by an arcuate disk edge 45. This results in the beam structure at the four contact points 41.

At the inner end of the combination insert 30 is a flat support bearing 37 for the snap-action disc 40. There are two brackets 38 on opposite sides, each having two passages 39 for receiving the tapered contact points 41 of the snap-action disc 40. At the two other, opposite points from the support bearing 37 guide elements 48 may be provided, such as the recognizable from Fig. 3 webs 48. These webs 48 guide the snap disc when placed on the base surface of the support bearing 37. In the base surface of the support bearing 37 also open the two ends of the two conductor starting pieces 35.1, 36.1, as shown in FIG. 3; they lie flat against the concave curvature underside 46 of FIG. 4.

After completion of the assembly of the handle housing 11 and combination insert 30 is there, as I said, only the prefabricated snap-action disc 40 placed on the support bearing 37. Then, in the manner already described, the handle rocker 21 according to Fig. Ia associated with it. It is noteworthy that the actuating plunger 27 exerts no pressure on the curvature 43 of the snap-action disc 40 in the rest position shown in FIG. 1a. However, the actuating plunger 27 can have a profile piece 28 which can be seen from FIG. 1 a, which serves to secure the position of the unactuated snap-action disc 40 on the housing-side base surface 37. The profile piece 28 ensures that the snap disc can not fall off the support bearing 37. The elastomeric soft component 22 of the handle rocker 21 ensures that the unactuated handle 23 is normally held in an off position of the handle 10 illustrated by the auxiliary line 23.1 in FIG. 1a. Then the snap-action disc 40 is in its non-contact rest position relative to the insertion grid 31.1.

In Fig. Ia, the position of a pivot bearing 13 between the handle rocker 21 and the handle housing 1 1 is indicated, resulting from the described engagement position between the handle side pivot bearing part 24 and the housing side pivot abutment parts 14. If the handle 23 is actuated in the sense of the force arrow 29 of FIG. 1 b, then a deformation of the elastomeric material 22, which, as stated, normally strives to hold the handle 23 in its open position 23.1 of Fig. Ia. By the operation 29, the handle 23 comes into its by the auxiliary line 23.2 in Fig. Ib clarified another position where its actuating plunger 27 deforms the snap disk 40. The above-described, from Fig. Ia apparent disc curl 43 is flattened or even transferred to a Gegenwölbung. Referring to FIG. 4, this means that the snap disk 40, which consists of electrically conductive material, short-circuits the starting pieces 35.1, 36.1 from the insertion grid 31.1 in FIG. The mentioned position 23.2 of FIG. 1b thus proves to be a switched-on position, where a circuit is closed relative to the drive of the closure not shown in detail.

In Figs. 6, 7, an alternative embodiment of a handle housing 1 1 'and a handle rocker 21' are shown. In this case, a stamped grid not shown in detail is integrated in an electrical component carrier 16, which in the injection molding of the cup-shaped handle housing 1 1 'serves as an insert in the housing form. The electrical component carrier 16 has at its inner end a shell-like receptacle 17, which serves for inserting a snap-action disc 40. This receptacle 17 has latching means or positioning webs 18, which provide for a positionally correct position of the snap-action disc 40 after insertion.

In the housing 1 1 ', the pivot abutment members 14 are arranged substantially centrally to the width dimension of the handle housing 11', which serves to a central position of the pivot bearing 13 described in connection with Fig. Ia, Ib. This results because the associated handle rocker 21 'of Fig. 7 has a central arrangement of its pivot bearing parts 24. In this case, the hard component 20 occupies the underside of the entire central region of the handle rocker 21 'and then forms there also the actuating plunger 27' from. The handle housing 1 1 'is generated with the handle rocker 21' by laser welding between the frame-shaped rocker edge region 25 and the shell edge 15 of the handle housing 1 1 '.

In Fig. 8a, a second embodiment of an insert grid 32.2 is shown, which consists of two bars 32.2 and 33.2. These bars 32.2, 33.2 are introduced after the production of the handle housing not shown in detail at defined locations in the housing interior. This can be done by pushing through the housing wall, which can also be weakened at the defined locations. In this case, the associated starting pieces 35.2, 36.2 arrive in a housing region where the support bearing for the abutment points of the snap disk 40, which is only shown in FIG. 8a, are located. The two bars 32.2, 33.2 have, according to Fig. 8a, e.g. a circular cross section.

FIG. 8b shows, in an illustration analogous to FIG. 8a, an alternative embodiment of such an insert grid 31.3. It is sufficient here only to respond to the differences with respect to Fig. 8a. One difference is that the two grid bars 32.3, 33.3 have a flat cross section, for example a rectangular cross section. Another difference is that the associated starting pieces 35.3, 36.3 have profilings 19 at their bar ends. These profiles 19 are made in the present case of a cutting edge 49, which makes its way through the housing wall itself when the bars 32.3, 33.3 are pressed housing during their assembly in the associated handle. The bars 32.3, 33.3 are stretched, like the blade of a dagger. Instead of this subsequent insertion movement, of course, the bars 32.2 to 33.3 could be inserted as an insert into the mold, which is used for injection molding of the handle housing.

Fig. 9a shows another embodiment of an insert grid 31.4. The one grating bar 32.4 has an approximately U-shaped wound inner piece 47, which at the same time generates four support bearings 50.4 for the four abutment points of the snap-action disc 40 shown in FIG. 9b. The other grid bar 33.4 protrudes into the winding interior 51 from the inner piece 47 and engages under the snap disk 40 in its bulge area according to FIG. 5b. The winding inner piece 47 has in its turn corner areas upstanding tabs 52.4. When placing the snap-action disc 40, these tabs 52.4 initially serve to guide their tapered abutment points 41 according to FIG. 9b. Then, however, the tabs 52.4 also serve to secure the position of the snap-action disc 40 because, according to the bending arrow 53 of FIG. 9b, they can be crimped over the disc contact points 41. Then, the position of the flanging disk 40 is fixed on the insert grille 31.4 in the interior of the handle housing not shown in detail. The protruding from the housing end 34 of the two bars 32.4, 33.4 can be discontinued as shown in FIG. 9a, 9b.

FIG. 10 shows an insert grid 31.5 similar to FIGS. 9a, 9b, for which reason the description of the preceding exemplary embodiment applies insofar. All you have to do is address the differences. The one grating bar 32.5 from the insert grille 31.5 also has a flat profile, while the other grate bar 33.5 has a circular cross-section. The two end pieces 34 of the two bars 32.5, 33.5, which are part of a future electrical connector on the handle housing are offset from each other in the same shape and have a nearly square cross-section. The flat profile having grating bar 32.5 has a cranked flat inner piece 57 which is octagonally wound. On three octagonal sides of the inner piece 57 are again towering tabs 52.4. Four support bearings 50.5 for the tapered contact points 41 of a dot-dash line in Fig. 10 illustrated snap disk 40 are located in the spaces 54 between the tabs 52.4. Therefore, the tabs 52.4 do not engage the abutment sites 4, but in the arching area on three of the four arcuate disk edges 45 of the snap disk 40.

List of reference numbers:

10 handle according to the invention

11 handle housing, shell

11 'Handle housing, shell (Fig.6)

12 sleeve for 34 (Fig. Ia)

13 pivot bearing between 21, 11 (Fig. Ia, Ib)

14 Swivel counter bearing part at 11, bearing shell

15 shell edge of 11

16 electronic component carriers (Fig.6)

17 recording in 16 for 40 (Fig.6)

18 positioning bar in 17 for 40 (Fig.6)

19 profiling on 32.3, 33.3, cutting edge (Fig.8b)

20 hard component of 21

21 lid-like handle for 11 21 'alternative handle rocker (Fig.7)

22 soft component of 21

23 handle, central area of 20 of 21 (FIGS. 1a to 2)

23.1 un-actuated switching position of 23 (FIG. 1a)

23.2 operated switching position of 23 (Fig. Ib)

24 pivot bearing part from 20 of 21, bearing block (Fig.2)

25 circumferential edge region of 22, frame (Fig.2)

26 median strip (FIGS. 1a, 2)

27 actuating plunger from 22 in FIG. 26 (FIG. 2) 27 'actuating plunger from FIG. 20 (FIG.

28 profile piece on 27

29 force arrow of actuation of 21 (Fig. Ib)

30 combination insert (Fig.3)

31.1 Insert grille (Fig.2, 4)

31.2 insertion grid (Fig.8a) 31.3 Insert grille (Fig. 8b)

31.4 insertion grid (FIGS. 9a, 9b)

31.5 Insert grille (Fig. 10)

32.1 conductor (Fig. 4)

32.2 grid bar (FIG. 8a)

32.3 grid bar (Fig. 8b)

32.4 grid bar (Figs. 9a, 9b)

32.5 grid bar (Fig. 10)

33.1 conductor (Fig. 4)

33.2 grid bar (FIG. 8a)

33.3 Rod (Fig. 8b)

33.4 Grid Bar (Figures 9a, 9b)

33.5 Grid Bar (Fig. 10)

34 end pieces of 32.1; 32.2; 32.3; 33.3; 32.4; 33.4; 32.5; 33.5

35.1 Starting piece of 32.1 (Fig. 4)

35.2 Initial piece of 32.2 (Figure 8a)

35.3 Initial piece of 32.3 (Figure 8b)

36.1 Initial piece of 33.1 (Fig. 4)

36.2 Initial piece of 33.2 (Figure 8a)

36.3 Initial piece of 33.3 (Figure 8b)

37 Support Bearings for 40 in 30, Base for 40 (FIG. 3)

38 bracket at 37, resilient member (Fig. 3)

39 passage at 38 (FIG. 3)

40 snap disk in four-ray outline

41 constricted investment sites on 40

42 convex disc top of 40

43 vaulting of 40 (Fig. Ia, 4)

44 central dent in 40 (Figure 4)

45 arcuate disk edge of 40 between 41 (Figure 4)

46 concave camber base of 40 (Fig. 4)

47 U-wound inner piece of 32.4 (FIG. 9) 48 Guide element for 40, web (FIG. 3)

49 cutting edge at 19 (FIG. 8b)

50.4 Support bearing for 40 (Figure 9a)

50.5 Support Bearings for 40 (FIG. 10)

51 winding interior of 47 (Figure 9a)

52.4 Tab (Fig. 9 °)

52.5 tab (Fig. 10)

53 Bending arrow for 52.4 (FIG. 9b)

54 gap between 52.4 (FIG. 10)

55 housing interior of 1 1 (Fig. 2)

57 octagonally wound inner piece of 32.5 (Fig. 10)

Claims

Claims:

1.) handle (10) for electrically actuating a closure on a flap or door in a vehicle,

with a handle housing (11) on which a manually actuable handle rocker (21) is pivotally mounted (13),

with at least two electrical lines in the handle housing (11), which protrude from the handle housing (11) and are connected to an electric drive of the closure,

with an electrical switch having in its switch housing a deformable snap-action disc (40) as a movable contact via at least two normally closed contacts, which are connected to the lines in the handle housing (11)

and with a switch actuator for deforming the snap-action disc (40),

characterized ,

that the handle housing (11) at the same time forms the switch housing and the handle rocker (21) acts as a switch actuator,

that the normally closed contacts of the switch and the lines in the handle housing (11) are integrally formed and generate an insert grid in the handle housing (11)

and that the handle housing (11) in the region of the insertion grid (31.1) directly a support bearing (37) for contact points on the snap-action disc (40).

2.) Handle according to claim 1, characterized in that the pivot bearing (13) for the handle rocker (21) in the region of the support bearing (37) of the snap-action disc (40) are arranged and / or substantially in the longitudinal center of the handle housing (11). lie.

3.) Handle according to claim 2, characterized in that the handle rocker (21) has an actuating plunger (27), which is arranged eccentrically to its pivot bearing (13),

and that the actuating plunger (27) during manual pivoting (29) of the handle rocker (21) deforms the snap disc (40) from its non-contact rest position into a contact-making work position.

4.) Handle according to claim 3, characterized in that on the actuating plunger (27) a profile piece (28) is arranged, which positions the snap disc (40) in its rest position on its support bearing (37) secure against loss.

5.) Handle according to one of claims 1 to 4, characterized in that the insert grid (31.1) has a pre-wrapping and is thus part of a combination insert (30),

and that the combination insert (30) during the final injection positionally in the handle housing (11) is positioned.

6.) Handle according to claim 5, characterized in that the pre-wrapping of the combination insert (30) at the same time the support bearing (37) for the abutment points (41) of the snap-action disc (40).

7.) Handle according to claim 5 or 6, characterized in that the combination insert (30) has a receptacle (17) for inserting the snap disc (40), in which the snap disc (40) is positioned correctly.

8.) Handle according to claim 7, characterized in that the receptacle has a base surface (37) which is bounded at least in places by resilient elements (38)

and that these elements (38) engage around the applied snap disc (40) at the edge.

9.) Handle according to claim 8, characterized in that the base surface (37) in places bounded by guide elements (18),

which guide the snap disc (40) at the edge when placed on the base surface (17;

10.) Handle according to one of claims 1 to 4, characterized in that the insert grid (31.2) consists of two bars (32.2, 33.2), which introduced after the manufacture of the handle housing (1 1) at defined housing locations in the housing interior (55) become and that the inserted starting pieces (35.2, 36.2) of the grating bars (32.2, 33.2) reach into a housing area which produces support bearings (37) for the abutment points (41) of the snap-action disc (40).

1 1.) Handle according to claim 10, characterized in that the initial pieces (35.3, 36.3) of the grid bars (32.2, 33.2) profilings (19) which facilitate their introduction in the handle housing (1 1).

12.) Handle according to claim 10, characterized in that the profilings (19) consist of a cutting edge (49).

13.) Handle according to one of claims 1 to 4, characterized in that the grid bars (35.2, 36.2) of the insert grid (31.2) are a metallic insert, which is inserted before the injection molding of the handle housing (1 1) in the mold.

14.) Handle according to claim 13, characterized in that the one grating bar (32.4) has a coiled inner piece (47), which at the same time generates the support bearing (50.4) for at the snap-action disc (40) provided abutment points (41)

and that a further grid bar (33.4) protrudes into the winding interior (51) from the inner piece (47) of the wound grid bar (32.4) and engages under the snap disc (40) in the bulge area.

15.) Handle according to claim 14, characterized in that on the winding inner piece (47) of a grid bar tabs (52.4) are arranged, which serve to secure the position of the applied snap-action disc (40) in the handle housing (1 1).

16.) Handle according to claim 15, characterized in that after inserting the snap disc (40) the tabs (52.4) on the contact points (41) of the snap-action disc (40) are flanged (53).

17.) Handle according to claim 14, characterized in that the intermediate spaces (54) between the tabs (52.4) serve as a support bearing (50.5) for the abutment points (41) of the snap-action disc (40)

and that the tabs (52.5) in the bulge region (43) of the applied snap-action disc (40) attack.

18.) Handle according to one of claims 1 to 17, characterized in that the handle housing (1 1) is cup-shaped and the handle rocker (21) acts as a lid for this shell (11).

19.) Handle according to claim 18, characterized in that the handle rocker (21) has an elastomeric edge region (25) which is firmly connected to the shell edge (15) of the handle housing (1 1).

20.) Handle according to claim 19, characterized in that the elastomeric edge region (25) serving for manual actuation (29) serving central region (23) of the handle rocker (21) surrounds like a frame and that the elastomeric frame (25) on the shell edge (15) of the handle housing (11) by welding, in particular laser welding, is attached.

21.) Handle according to claim 19 or 20, characterized in that the handle rocker (21) with its elastomeric edge region (25) is produced by a so-called multi-component injection molding technique consisting of

an elastically yielding soft component (22) arranged at least in the edge region (25) and a hard component (20) which generates the central region (23) for manual actuation (29).

22.) Handle according to claim 21, characterized in that the on the handle rocker (21) seated pivot bearing parts (24) are part of the hard component (20).

23.) Handle according to claim 21 or 22, characterized in that the

Actuating plunger (27) on the underside of the handle rocker (21), the manual operation (29) the snap disc (40) deformed from the soft component (22) is formed.