DE6609838U - LOCK FOR VEHICLE DOORS. - Google Patents

Description

Establishment Cousin Fröres

Le Bois de Piers

Piers (Orne, France)

Representative :
Patent attorney
Dipl.-Ing. Max Blinke
7 Stuttgart 1
Lessingstrasse 9

Stuttgart, 2b, P 2057 Hgm

Lock for motor vehicle door »?.

The invention relates to a lock for motor vehicle doors with a a closing cap and a buffer toilet housing and with an afenDary lock bolt that interacts with the locking cap.

The invention is based on the task of the sensitivity of the handling of the lock and the speed of its actuation to improve, in particular the design of the elements controlling the rotation of the lock bolt oi the use of a return spring, Aeren effect of the lock bolt in known 3auarten tends to be exposed.

The improvements of the invention also relate to elements to reduce the torsional forces as much as possible when the closing cap is inserted and when the actuating levers are transmitted and are continuously exerted by the return spring usually connected to the rotatable lock bolt.

These improvements also aim to be complete effective protection of the various bolt organs of the lock against blows and SiggeQgtg ^^ y ^^ which these organs at least can partially damage it.

The invention is characterized in that in a lock the type mentioned at the outset, the housing from one on a base plate attached independent part is shaped so that it also forms a semi-cylindrical bearing for the rotating lock bolt, which, on the one hand, has a cylindrical body extending transversely through the housing, and two, one substantially radial body Tooth delimited neighboring cavities, as well as to external kunvexes Profiles hilrif? Fc- the 2i_im ahuiechselnden 7usaramäniiiirkßn with the Artaeiis-. flanks of two teeth of the locking cap are agreed, and the other hand forms a ratchet wheel, which is arranged on the other side of the base plate opposite the housing and starting from an eccentric, an axial stop form an approach three teeth to alternate Cooperation with a horn one of the JlJj.rkung an elastic Organ subject to operating lever carries, the elastic Organ strives to attach the horn to a dsr three teeth designed to allow independent rotation of the Lock bolt in the direction in which the locking cap is disengaged goes with the case; lock =

Developments and details of the invention emerge from the following example description in connection with the claims.

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• - 3 - * · ·

One embodiment of the subject matter is given as an example shown without limiting meaning in the accompanying drawings.

Fig. 1 is a partially broken away side view of the

lock according to the invention.
Fig. 2 is a cross section essentially along the line II - II in O ^ _ Λ
K JL £ · J. «

FIG. 3 is a side view along line III - III in FIG. 2. Figures 4 to 6 are schematic partial views showing certain working phases of the lock.

A base plate 1, which has Aus ^ Rücküi ^ ea 2, belongs to the lock By means of which it can be fixed in the box of a motor vehicle door can. The base plate 1 carries a housing 3, which has three edge strips 5, 6 and 7, which have a U-shaped space in view with unequal

en long sidebands, which are constantly sin lax general

as "door wedge ¹¹ " TPuffer block - H accommodates. Of the

the latter can be counteracted by the action of an elastic organ Or the like. Slidable sliding shoe be formed, as shown in Fig.l is represented by an elastically deformable damper made of soft material. which covers most of the swish. des. marginal ridges 5-i £ and 7 occupies limited space "

The base plate 1 also carries a semi-cylindrical bearing 16 _t which extends essentially at the level of the edge strip 7 and opposite the edge strip 5. The bearing l6 contains a cylindrical lock bolt 17 which is freely rotatably mounted. The lock bolt 17 cooperates with a widened, delimited opening 2k opposite the edge strip 6 of the housing 3 in such a way that, during locking, a closing flap 25 arranged in the housing 3 can enter the opening 24 which is fastened to a part 26 which is normally is "fastened" by any suitable element on the frame of the motor vehicle door. Opposite a projection 27 intended to interact with the edge strip 5, the locking cap 25 forms two teeth 28 and 29, which are separated from one another by a gap 30 and with the lock bolt 17 cooperate.

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The housing 3 is made from a part 90 by deep drawing, which has essentially the same shape as the base plate 1, This part 90 also has expressions 91, the outlines of which indicate the expression 2 in such a way that those can enter the latter when the part 90 are closely adjacent in one of the plane of the base plate Level is located. The expressions. 91 and 2 are for the purpose of enabling the passage of connecting elements of the part 90 and the base plate 1 is provided on the narrow side 92 of a door, on both sides of which the part 90 and the base plate 1 are arranged are. The housing 3 is formed by deep-drawing the part 90, .that is completely closed by a wall 93, which the edge strips 5t 6 and 7 connects. The part 90 is also formed so that it in the form of the curved edge strip 9 ^ »which extends the edge strip 7, directly forms the camp l6. In this way, a housing 3 is obtained from one piece, which is entirely on its outer broad side

is closed and so the ferklotz Puf: 11 and the SchJoßriegel

17 protects very well. The wall 93 nevertheless has an opening 95, which is shown in phantom in FIG. 1, and from the opening 2k

it proceeds in such a way that a bar 25a is less thick than that

Closing flap 25, which connects the latter to the fastening part 26, can go through it.

The closure cap 25 is designed in such a way that its first tooth 20 in. View has essentially the shape of a right triangle with a truncated tip. The long cathetus of the triangle is formed by a portion of the projection 27, while the small cathetus ^w partially limits the gap 30 and the Hypot- ^ J enuse a rise 96 forms, which rises in the direction of insertion of the Schlisßkappe in the housing. The point that connects the small cathetus and the rise 96 is also truncated and, with respect to the edge strip 5, somewhat further away from the axis of rotation of the lock bolt 17 than the point 97 of the second tooth 29. The latter is designed so that it is in The view is essentially triangular in shape, has a convex end edge 98 delimiting the gap 30 and a concave end edge connecting the tip 97 to the shoulder 27.

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The lock bolt 17 consists of a cylindrical body 100 which is housed iji a mounted in the base plate 1 cylindrical bearing IQl and with an outer cylindrical ^! -cylindrical pin 102 extends into an opening provided in the wall 93 of the housing 3 \ bore 103rd 7. · ⁰ ^ r cylindrical body 100 of the lock bolt 17 is provided on its part located in the interior of the housing 3 with a substantially radially directed tooth 104, which is formed by a straight end edge 105 and a convex end edge

iod

106 is limited. The tooth / is based on the cylindrical one Body 100, enclosed by two cavities 107 and 108, both of which / cover an angular surface *

'corresponding to the straight-line distance ·, <ier is necessary to the full ^

continuous passage of teeth 28 and 29 when introducing the closing ^

cap 25 in the housing 3 ^to allow _ \

The spaces 107 and 1θ8, together with the cylindrical body 100, delimit two convex profiles 109 and HO _1, the radius of curvature of which essentially corresponds to that of the concave end edge 99 of the tooth 29 of the closing cap 25. The profiles 109 and 110 are connected to the front edges 105 and 1θ6 of the tooth 104 by tooth base surfaces, the radial depth of which is equal to the height of the teeth 28 and 29.

The part of the body 100 of the lock bolt 17 “that is beyond the The base plate 1 ″ is located on the side opposite the housing 3 and forms a ratchet wheel 1 <δ1 with an eccentric extension 112. The latter forms a certain to secure the axial seat of the lock bolt 17 stop in that it is on the inner surface the base plate 1 rests. Starting from the eccentric extension 112, there are three teeth 113 to 115 on the circumference of the ratchet wheel 111 arranged at equal angular intervals, each of which has a straight front edge and a convex, sloping edge.

The teeth of the ratchet wheel 111 are ^F determined ÜR the alternating cooperation with the Hern 116 of a pawl 117, which is an on one mounted on the base plate 1 axis 118 freely rotatably disposed inner actuating lever. The inner actuating lever 117 includes a sleeve 119 for connection to a connecting rod (not shown) which is assigned to an inner actuating member attached to the vehicle door. On the side opposite the socket 119, the inner actuating lever 117 forms a tab 120 for attaching the outermost end of an elastic member 121 which is otherwise suspended from a tab 122 formed by the base plate 1. In the present example, there is elastic

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'I.

Organ 121 from a luendezugfeder housed in a protective sleeve 123. The constant Ulirkung the spring 121 strives to the operating lever 11? _{3 in} such a way that the horn 116 is held in contact with the steep flank of one of the teeth of the ratchet wheel 111 in the direction of arrow F _1. Approximately in its middle part, the actuating lever 117 forms a finger 124 which continuously protrudes into an opening 125 in an outer actuating lever 126. The latter: is also arranged parallel to the inner operating lever 117 on the axis 118, from which it is separated by any suitable element, in particular by a resilient washer, not shown. The outer actuating lever 126 mostly at essentially the same height as the bushing 119 has an attachment 127 for attaching a return element 128 which is normally controlled by an outer actuating member such as a push button. The outer actuating lever 126 has, opposite the shoulder 127, an elongated hole 129 through which a pin 130 formed starting from the ratchet wheel 111 in the same axial direction u / ie the pin 1Q2 engages. The special designs of the opening 125 and the elongated hole 129, which are matched to one another, are chosen so that the constant action of the return spring 123, because the finger 124 rests against the base of the opening 125, keeps the lung hole 129 in contact with the pin 130, while the lever 126 remains at the same time is supported against a tongue 131 bent from the base plate 1.

The lock described above works as follows: When the door is closed, the locking cap 25 penetrates through the opening 24 into the housing 3; it is guided into the opening 95 by the engagement of the strip 25a. In the course of this penetration, the rising surface 96 of the tooth 28 meets the profile 109 of the lock bolt 17, which is thereby _{rotated in the direction of arrow f 2} , see FIG. Against this rotation, the tooth 113 of the ratchet wheel 111 moves increasingly away from the pawl 117, under which the rising surface connecting the tooth 113 with the tooth 114 passes. The inner actuating lever 117 is pivoted against the action of the return spring 121 in the direction of rotation opposite to the direction of rotation of _{the arrow F 1.}

The progressive penetration of the tooth 28 into the housing 3 causes one continuous rotation of the lock bolt 17, in the course of which the profile 109 rolls along the rising surface 96, ' until the tip of the tooth 28 <nit the tooth base of the cavity

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107 comes into contact (Fig. 5). In this position, the tooth 104 of the lock bolt 17 engages at least partially in the gap 30 of the locking cap 25, from which position it cannot be returned because the spring 121 then brings the horn 116 behind the steep flank of the tooth 114 of the ratchet wheel 111. The Schloßriegei 17 can then no longer be turned back against the direction of the arrow f, because the front edge 105 of the tooth 104 forms a stop preventing the return movement of the cap 25 relative to the housing 3, so that on this UJeise a first lock, the so-called "Security lock ^{11 is} created.

In order to obtain complete locking, one must increase the pressure exerted on the door, so that. the insertion movement of the closing cap 25 into the housing 3 continues. This further insertion movement has no effect on the position of the lock bolt 17 as long as the front edge 98 of the second tooth 29 does not yet touch the convex front edge 106 of the tooth 104 of the lock bolt 17. From the contact position shown in FIG. 6, the second tooth 29 of the locking cap 25 acts in the same way as described above on the tooth 104, so that it causes a second rotation of the lock bolt 17 in the direction of the arrow f ^. At the same time, the first tooth 28 of the locking cap 25 with its rising surface 96 hits the buffer block 11 and penetrates into it with elastic deformation of the material forming it, as far as the complete insertion of the locking cap 25 into the housing 3 corresponds. In this position, the further rotation of the lock bolt 17, which was caused at the end of the insertion movement by the interaction of the tip 97 of the tooth 29 with the tooth base of the cavity 108, the complete contact of the profile 110 on the matching concave front edge 99 of the tooth 29 secured (Fig. 1). The profile of the ratchet wheel 111 is selected so that the horn 116 is simultaneously guided back behind the tooth 115 by the spring 121. The lock bolt 1? is therefore blocked against rotation in the direction opposite to the direction of the arrow f ₂ , because the profile 110 forms a fixed stop which prevents the closing cap 25 from moving out of the housing 3.

The exerted by the buffer block 11 against its elastic deformation Counterforce causes as well as the presence of surrounding the door Sealing strip that the closing cap 25 at the same time with its approach 27 against the edge strip 5 and with the ■ concave front edge 99

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of the second tooth 29 is held in contact with the profile 110 of the lock bolt 17, while the buffer block 11 against the edge strips 6 and 7 of the housing 3 is pressed. iSan receives on this liieise a direct connection of the frame with the door and a Wedging at three points which lie on axes converging inside the housing 3.

To open the door, the user can either use the control lever 117 connected inner actuator directly

or indirectly on the horn via the external actuating member which controls the lever 126 and which in turn acts on the lever 117 116 act. Whichever actuator is selected, the inner operating lever 117 vaird in which the *. Direction of the Arrow f., Opposite sense swings, namely opposite

11 fi

the action of the return spring 121, so that the horn / in to release the Zahrtes 115 of the ratchet 111 is sufficient! ITIaOe lifted off and free rotation of the lock bolt 17 is made possible. The user can then pivot the door in the normal sense, which causes the closure cap 25 to move out of the housing 3. In the course of this process, which takes place with the assistance of the counterforce resulting from the elastic deformation of the buffer block 11, the tip / äes second tooth 29 of the locking cap 25 rotates the lock ridge? in which the direction of the arrow f _? opposite sense and moves the profile 110 out of the opening 24 of the housing 3. It is clear that the user must maintain his Krafteinuiirkung on the selected actuator so that after the engagement of the tooth 104 of the lock bolt 17 in the gap 30 of the locking cap 25, the horn 116 no in the path ties the second tooth 115 of the ratchet 111 lying obstacle forms. In this way, the tooth 28 can also follow the rotation of the lock bolt 17, its steep flank cooperating with the straight front edge 105 of the tooth 104. The complete disengagement of the tooth 28 of the locking cap 25 causes the lock bolt 17 to be returned to its initial position shown in FIG 116 behind the tooth 113 of the ratchet wheel 111 in the direction of rotation of the arrow f. The Schloßriegeil 17 is blocked again in the position that it must assume when he is at

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Of

a later introduction of the closing cap 25 into the housing 3 with the teeth 28 and 29 should work together in the correct way.

UJie from the foregoing and especially from the accompanying drawings is apparent, acts on the SchloQriegel 17 no own elastic A return organ, whereby it can be avoided at least * this lock bolt and certain essential parts of the lock, such as the teeth of the locking cap 25, when in the locking position To expose the lock to constant reverse torsional stress.

It should also be noted that the various work surfaces of the Closing cap 25 and the lock bolt 17 in their interacting parts form convex profiles which the surface contact reduce a minimum value so that the v. . · Frictional forces generated are reduced. It follows because of a smoother sliding on each other a smaller wear of the working parts and especially a greater sensitivity in the Operation of the lock.

These various advantages with regard to the improvement of the free rotatability inherent in the lock bolt 17 are also provided by the special design of the teeth 28 and 29 of the locking cap 25 and the hollow space IG? and IGS of the Schlaßrisgsls 1? As can be seen in detail from FIGS. 1, 4, 5, and 6, the truncated points of the teeth 28 and 29 interact with the tooth base surfaces of the cavities 107 and 08, which are tangential to imaginary circles around the axis of rotation of the lock bolt 17 which have very small diameters. Therefore do the lever arm lengths and thus the torsional forces that are exerted on the lock bolt 1? must exercise in order to turn it, in particular in the direction of arrow f., much smaller. For this reason, the tooth 29 has been made even higher than the tooth 28 so that the tooth base of the cavity 108 touches a circle around the axis of the lock bolt 17 of a much smaller diameter than is assigned to the tooth base of the cavity 107. The force to be exerted on the lock bolt 17 is therefore smaller in this ratio, even if one takes into account the resistance that the compression of the cushion forming the buffer block 11 creates by the tooth 28 when the tooth 29 passes over the axis of rotation of the lock bolt 17. The lock can thus be easily opened and closed by exerting a very small force on the inner or outer continuation members.

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Claims (7)

1. Lock for motor vehicle doors with a locking cap and a buffer block receiving housing and with one with the Closing cap cooperating rotatable lock straps, IL. . * characterized, that the housing (3) from a mounted on a base plate (1) independent part (90) is shaped so that it also oiltiet a semi-cylindrical BEARING (16) for the rotatable bolt (17), on the one hand a transversely through the housing (3) extending> having cylindrical body (100) and two essentially one radial tooth (104) adjacent cavities (107, 108J ^ bounded, C as well as two outer convex profiles (109,110), which for alternating Interaction with the working flanks of two teeth (28,29) the closing cap (25) are determined, and the other hand a ratchet wheel (111) forms, which is arranged on the other side of the base plate (1) opposite the housing (3) and starting from an eccentric, one Axial stop forming shoulder (112) three teeth (113 to 115) for alternating interaction with a horn (116) of one of the I. Action of an elastic member (121) subjected to actuating lever (117) carries, wherein the elastic member (121) strives to keep the horn (116) in contact with one of the three teeth, the so are designed to allow the independent rotation of the lock bolt in the direction in which the locking cap is disengaged from the ... Housing goes »lock. 2. Lock according to claim 1, characterized in that the one special part (90) drawn housing (3) three edge strips (5j to 7) which enclose a substantially U-shaped limited space with unequal length Ulands, which is defined by a side wall (93) is closed, the one opening (95) for the passage of a bar (25a), which connects the two-toothed cap (25) with its holding part (26) on the door frame, the dem small leg of the U corresponding housing edge strip (7) is extended by an arcuate edge strip (94), which is a semi-cylindrical Forms bearing (16) for the SchloGrieqelkörper, which means a circular traq part (100) and an outer pivot (102) is mounted in the base plate (1) and in the side wall (93) of the housing (3). 660983812.10.72 3 (2 .-: 11 - 3. Lock according to claim 1, characterized in that the locking cap (25) has ztuei teeth, the tips of which are so lueit withj possible to have a height approaching the radius of the lock bolt body. 4. Lock according to claim 1, characterized in that the closing cap (25) has a first tooth (28) which, in view, is an im essentially triangular shape and its frustoconical Tip from the axis of rotation of the lock bolt is further away than the frustoconical tip of the second tooth (29). 5. Lock according to claim 1, characterized in that the lock bolt (17) carries a radially directed tooth (104) in the essential, which is limited by two cavities (107 and 108) in the cylindrical Body of the lock bolt are designed so that they Zahngrursdflächen form whose depth is equal to the height of the frustoconical tips the teeth (28 or 29) of the locking cap (25) corresponds. 6. Lock according to claim 1, characterized in that the lock bolt on the other side of the cylindrical support body (100) for the rotation in the base plate (1) a ratchet wheel (111) forms, since three of one eccentric approach (112) has outgoing teeth (113 to 115) that have steep flanks connected to one another by inclined, rising end faces and are distributed over the circumference in such a way that they together with the horn of the inner operating lever, the locking of the Lock bolt in zuiei extreme, the open position and the closed position of the lock cause corresponding positions, while in a central position of the substantially radial tooth of the The lock bolt is located in the gap (3U) separating the two teeth of the locking cap. 7. Lock according to claim I _1, characterized in that the lock bolt on the other side of the ratchet wheel formed by it and in the direction of its axis of rotation carries a pin (130) which engages in an elongated hole (129) of an outer operating lever (126) which on ainer The axis (118) attached to the base plate is pivotably mounted, which also carries the inner actuating lever (117) which is connected to the base plate by a return spring (121) which tends to keep the horn of the inner actuating lever always behind one of the teeth of the ratchet wheel keep engaged. 6609838i2.io.72