CN1576501A

CN1576501A - Lock cylinder especially for vehicle

Info

Publication number: CN1576501A
Application number: CN 200410063226
Authority: CN
Inventors: G·巴伦伯格
Original assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Current assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Priority date: 2003-06-30
Filing date: 2004-06-30
Publication date: 2005-02-09
Anticipated expiration: 2024-06-30
Also published as: DE20312238U1; CN1576501B

Abstract

Said lock core has a column core (10) which contains, in longitudinal shift mode, sheet rotors (30) for bearing spring force (14). A key having a certain longitudinal cross-section is used for offsetting these sheet rotors (30) at their controlling sides (36) for a specified altitude. The column core (10) and the sheet rotors (30) ate received in a lock core case (20) which has a locking hole (21) and an opposing prevention hole (22). When the key is pulled out, the sheet rotors (30) insert an end-face (38) thereof into the locking hole (21). And in used situation, when a true or a fake key is inserted-in or pulled-out, the rotors (30) move the terminal edges (39) to the prevention hole (22) temporarily. In order to obtain a volume-saved structure in the lock core, it is proposed that the terminal edges (38, 39) of the rotors (30) is evenly constituted, relative to the radius (18) of the column core.

Description

Be particularly useful for the lock core of car

Technical field

The present invention relates to lock core as type as described in claim 1 preamble.Post core in lock core shell has a group cavity, and tumbler is single or be directed and bear spring force in couples in these cavitys with longitudinal movement.These tumbler slabbings.A keyhole passes the post core.On resting position, promptly when extracting key, one of them rotatable lamella stretches in the locking hole with one end head and prevents that the post core from rotating.This does not only carry out when having key, and carries out under the situation of false key.When inserting and/or extracting true key or false key, the dodging in the hole of facing that rotatable lamella inserts lock core shell with its another termination.

Background technology

In known lock core, tumbler has a curved shape on its ora terminalis, and its bending curvature equals the circumferential curvature of post core.For the consideration of making and saving material, locking hole and dodge the hole in hole at the bottom of be recessed curved and have a radial variations concentric with the outer peripheral face of lock core shell.This radial variations is greater than the post core radius.If attempt to steal and false key may be attached on the tumbler on the highest key bit limit with one, then at the ora terminalis and the locking hole of this tumbler or dodge appearance point contact between the hole with false key.Owing in lock core, must follow safety and intensity, so known physical dimension can't successfully be dwindled.Therefore, for example do not allow to reduce the lock core wall thickness, so that in known lock core, save the space by the locking hole or the intensification of dodging the hole.Therefore, known lock core can not be less than certain external diameter, otherwise can make troubles in quality and/or function aspects.

Summary of the invention

Task of the present invention is to improve the lock core of the described type of preamble as claimed in claim 1, and its feature is to have small and exquisite structure.This task is finished by measure as claimed in claim 1, and these measures have following Special Significance.

Because it is more smooth that the ora terminalis shape advantageously is configured to, so these tumblers deeper enter locking hole and/or dodge in the hole.The degree of depth that enters according to the present invention increases the external diameter that can be used to reduce housing.Realized the purpose of compact conformation thus.

The planarization of ora terminalis can form by variety of way, and this describes in detail from different angles in dependent claims, following explanation and accompanying drawing.In the accompanying drawings, show an embodiment of two embodiment of the present invention and prior art.

Description of drawings

Fig. 1 shows the cross section that is in static lock core according to of the present invention very enlargedly, does not insert key this moment.

Fig. 2 represents the same cross section of lock core of the present invention, and at this moment, false key may the highest profile of tooth be inserted into it.

Fig. 3 is according to the behavior in service corresponding to Fig. 2 of another kind of lock core of the present invention, shown on the position, false key also with its may be the highest profile of tooth insert.

Fig. 4 is the view similar to Fig. 2, and it shows according to the lock core of prior art and false key with correspondence of the highest key bit.

The specific embodiment

In the cross-sectional view that illustrates very enlargedly of Fig. 1, show the basic structure of a lock core.Rotating part is that to be rotatably supported in a motionless part of relative fixed be in the lock core shell 20 to post core 10.The shell hole limits the diameter of the post core 10 of lock core 10.Post core 10 comprises the just relative cavity of a group 12, and these cavitys are directed vertically and be respectively applied for and hold a sheet tumbler 30.Sheet

longitudinal edge

31,32 leads on the corresponding narrow side of cavity 12 and moves.These relative cavity 12 both ends opens.Each cavity has a widening portion 13, is provided with a stage clip 14 in widening portion.Stage clip 14 at one end is bearing on the end face of widening portion 13 and is bearing at the other end on the projection of tumbler 30, and this projection surpasses the sheet longitudinal edge 32 there and stretches into 13 li of cavity widening portions in the side.So, these tumblers 30 bear spring force on by the direction shown in the power arrow 15.Under static occasion, when promptly not having key to insert, tumbler is because power 15 enters its resting position as shown in Figure 1, and on this position, a corresponding sheet end 34 surpasses post core diameter 11.

Therefore, the latter can accomplish that because be provided with first hole 21 on this position, sheet end 34 stretches in this first hole.This hole 21 extends axially in 20 li of lock core shells, and the corresponding end of other tumbler also can enter in this hole according to similar mode and prevent that post core 10 from rotating.Therefore, this hole 21 is called as locking hole.That is, if people attempt to make post core 10 in 20 li rotations of lock core shell, then this does not accomplish, outstanding sheet end 34 withstands on the sidewall or another

sidewall

23,24 of locking hole 21.

Post core 10 is equipped with an axial keyhole 16, and this keyhole is suitable for having the insertion of the key of cross section taken in correspondence.True key has the longitudinal cross-section shape of a regulation, and its tendency is corresponding to the height and position of respectively controlling limit 36 of the relevant locational tumbler 30 that is arranged on lock core.That is, here, this tumbler has a breach 37, and a tongue piece 34 of tumbler 30 stretches into wherein.One sidewall of tongue piece 17 constitutes control limit 36.

Fully relatively be provided with another similar hole 22 with locking hole 21, this hole also extends axially and is that all tumblers are common.That is, if a key is inserted into keyhole 16 or therefrom extracts, then these tumblers are according to the trend at the control points on the key longitudinal cross-section and overcome power 15 ground that act on it and move.Thus one, the opposed 35 temporary transient motions of sheet end down surpass the outline of post core diameter 11 and may enter 22 li in this hole thus.Therefore, hole 22 should be called as and dodges the hole.In the insertion of key with extract in the motion, above-mentioned end 34 is in a similar manner in 21 li actions of opposed locking hole.

In the present invention, the

ora terminalis

38,39 that is positioned on two

sheet ends

34,35 under any circumstance all is configured to more smooth than the profile of post core diameter 11.In this embodiment, ora terminalis the 38, the 39th, the circular arc of radius unanimity, is so selected radius here, promptly it corresponding to the affiliated hole in these two

holes

21,22 at the bottom of 28,29 recessed curved round curvature.Can from situation shown in Figure 2, see consequent result.

In Fig. 2, a false key 40 is inserted into, and exactly, spring force 15 ground that so false key overcomes effect as far as possible farthest push back relevant rotatable lamella 30.That is, the false key 40 of insertion has the pressure of a maximum and touches face 43 on its key bit curve 41, and this pressure is touched face and pushed back tumbler 30 as far as possible farthest.False key 40 has just been given the game away certainly, touches face 43 because it has false pressure in the key bit curve 41 of its cutting.In this example, it can be one so-called " two-sided key " in addition, and it also can use under the state of turning round well.Therefore, people needn't notice key inserts 16 li of keyholes with which face.This means that true key all has consistent key bit curve 41,42 with false key on two broad side surface, described key bit curve has the pressure that is arranged on the equal height and

touches face

43,44.

Make according to the mode consistent although shown false key 40 is untitled people, press and touch the height and position that

face

43,44 has vacation with true key.Therefore, in illustrated embodiment, tumbler 30 1 its down sheet ends 35 charge into dodging in the hole there with stretching most.Before this, can in Fig. 1, see position at the lock core axis 19 of 16 li of keyholes.From this axis 19, Fig. 1 shows at the bottom of the above-mentioned radius 18 of lock core and the described hole 29 round radius of curvature 25.29 also figure 2 illustrates at the bottom of the hole.Because here, the trend of ora terminalis 39 is as described above corresponding to above-mentioned radius 25, so, under extreme occasion, the face contact has appearred under situation shown in Figure 2.But importantly, owing to be formed flatly the

ora terminalis

38,39 at two ends, so, compared with prior art, saved radial space.Although this has illustrated in manual preface part on the whole, should have been described in detail in conjunction with Fig. 4.

As see ground from above-mentioned description of drawings, Fig. 4 represents prior art, and exactly, it is according to view similar to Fig. 2 of the present invention and function prior art to be described.Therefore, can be referring to above description.Only need the explanation difference.Therefore, below, for the prior art of Fig. 4, adopted and Fig. 1,2 identical marks, but, added single apostrophe for to show differentiation.

Tumbler 30 ' be with the difference of tumbler 30 of the present invention, the control limit 38 at its two ends ', 39 ' have a radius 45, this radius and the lock core 10 there ' core radius 18 ' the same.In Fig. 4, also show the axis 19 of above-mentioned lock core ', as be used for two radiuses that draw there 45,18 ' mid point 46.Have the highest correspondence and press and touch the key 40 of face 43 vacations by above-mentioned, though at the bottom of the tumbler 30 ' under extreme case, also touch concave hole 29 ',, just the some contact with 26 represent dodge hole 22 ' longitudinal center.For the tumbler 30 that can make prior art ' play a role, known be lock core shell 20 ' must the bottom land 28 at two ends ', 29 ' between a clear span 27 is arranged, this clear span is greater than the similar clear span 27 of lock core shell of the present invention 20 shown in Figure 2.Under the less situation of the lock core size of Lock for automobile, this clear span can have only several millimeters at zero point, but this is very meaningful in practice.Corresponding lock core shell 20 ' or 20 the wall thickness shown in Fig. 4,2 47 ' or 47 should be less than predetermined minimum dimension, because otherwise, lock core intensity reduces.Therefore, in the prior art, can't obtain in the following manner clear span 27 shown in Figure 2, increase according to height of the present invention, promptly in the prior art of Fig. 4, dwindle wall thickness 47 '.This will irresponsiblely reduce lock core intensity.

As mentioned above, figure 3 illustrates the second embodiment of the present invention., adopted term and the mark the same here with first embodiment for similar parts are described, therefore, more than describe this be suitable for and can utilize same mark.Also only introduce difference here.Main difference is that the

ora terminalis

38,39 at two ends mainly is straight line 48,49, and they extend between two sheet

longitudinal edges

31,32 with meeting at right angles.In this case, lock core shell 20 also has the structure of saving the space, as among Fig. 1,2 the embodiment.Here, people have also obtained in the clear span of dwindling 27 between 28,29 at the bottom of two holes opposite each other.In this case, locking hole and

dodge hole

21,22 and in

bottom

28,29, such radius of curvature 25 is arranged, promptly it has guaranteed the enough big lock core wall thickness 47 20 li of lock core shells.

With Fig. 2 similarly, if the false key 40 shown in inserting and tumbler 30 is farthest moved into dodge 22 li in hole in Fig. 3, then owing to be in line 39, so 39 of the following ora terminalis of tumbler 30 are with at the bottom of two end points 51,52 contact concave hole 29.Therefore, here, straight ora terminalis 39 is compared darker with prior art as shown in Figure 4.This is an emphasis.

The Reference numeral list 10,10 '-the post core; The cylinder profile of 11-10; Cavity among the 12-10; The widening portion of 13-12; Stage clip among the 14-13 (Fig. 1); 15-is used for 30 14 power arrow (Fig. 1); 16-10 In keyhole (Fig. 1); The tongue piece of among the 17-37 30 (Fig. 1); 18,18 '-10 or 10 ' the post core radius; 19,19 '-10 or 10 ' axis; 20,20 '-10 or 10 ' lock The core shell; 21,21 '-20 or 20 ' first hole, locking hole; 22,22 '-20 or 20 ' The hole is dodged in two holes; The first side wall of 23-21 (Fig. 1); Second sidewall (Fig. 1) of 24-21; 25-28,29 radius of curvature (Fig. 1); Contact point between the 26-39 ', 39 ' (Fig. 4); 27,27 '-20 or 20 ' concave hole at the bottom of; 28,28 '-21 or 21 ' concave hole at the bottom of; 29, 29 '-22 or 22 ' concave hole at the bottom of; 30,30 '-the sheet tumbler; The first of 31-30 is vertical The limit; Second longitudinal edge of 32-30; The projection of 33-30 (Fig. 1); The first end of 34-30 (Fig. 1); Second end (Fig. 1) of 35-30; The control limit of 36-17; 38,38 '-30 Or 30 ' first ora terminalis; 39,39 '-30 or 30 ' second ora terminalis; 40,40 '-false key (Fig. 2,3 or 4); The first key bit curve (Fig. 2) of 41-40; Second spoon of 42-40 Tooth curve (Fig. 2); 43,43 '-40 or 40 ' pressure touch face; The opposed pressure of 44-42 is touched face (Fig. 2); The radius of 45-38 ', 39 ' (Fig. 4); The mid point of 46-30 ' (Fig. 4); 47, 47 '-20 or 20 ' wall thickness; The linearity of among 48-Fig. 3 38; Among 49-Fig. 3's 39 Linearity; The 51-contact point, first end points (Fig. 3) between 39 and 29; The 52-contact Point, second end points (Fig. 3) between 39 and 29;

Claims

1. be particularly useful for the lock core of car, it has a post core (10), this post core has just relative and is used to hold a plurality of cavitys (12) that can vertically move in sheet tumbler (30) wherein and that bear spring force (14), and this post core has an axial key hole (16) that is used to insert flat key (40), wherein, this key (40) has the longitudinal cross-section (41 of a regulation, 42), these tumblers (30) have some control limits (36) according to the key longitudinal cross-section on specified altitude, this lock core also has one to be used for rotating and to hold the lock core shell (20) of post core (10), this lock core shell has a locking hole and a just relative hole (22) of dodging, wherein, on resting position, promptly when extracting key, one of them tumbler (30) inserts this locking hole (21) lining with an one ora terminalis (38), and under use occasion, promptly when inserting or extracting true key or false key (40), other tumbler (30) also temporarily inserts this with their another ora terminalis (39) and dodges lining, hole (22), it is characterized in that, these ora terminalis (38,39) of these tumblers (30) are compared with the radius of this post core (10) flatly and are constituted.

2. lock core as claimed in claim 1, it is characterized in that, this locking hole and this are dodged hole (21,22) the end (28,29) be recessed bend (25), these ora terminalis (38,39) of these these tumblers (30) have such trend, promptly this trend roughly is adapted to this locking hole and this and dodges recessed curved (25) shape at the bottom of the hole of hole (21,22).

3. lock core as claimed in claim 1, it is characterized in that, this locking hole and this end (28,29) of dodging hole (21,22) are recessed curved (25), the bight (51 of these tumblers (30), 52) be used for these tumblers (30) are bearing at the bottom of this this locking hole and this is dodged at the bottom of the hole on (28,29), these bights are arranged on the longitudinal edge (31 that is used for longitudinal guide tumbler (30), 32) and between the ora terminalis (38,39) of these tumblers (30).

4. lock core as claimed in claim 1 or 2 is characterized in that, the ora terminalis (38,39) of these tumblers (30) is cut flat.

5. lock core as claimed in claim 4 is characterized in that, the ora terminalis (38,39) of these tumblers (30) (38, the 39) shape that roughly is in line.