CN1075587C

CN1075587C - Rotative lock assembly of which is improved

Info

Publication number: CN1075587C
Application number: CN 95107660
Authority: CN
Inventors: 吉兰·戈迪奥; 菲力普·加辛
Original assignee: Valeo Securite Habitacle SAS
Current assignee: Valeo Comfort and Driving Assistance SAS
Priority date: 1994-06-24
Filing date: 1995-06-23
Publication date: 2001-11-28
Anticipated expiration: 2015-06-23
Also published as: FR2721647B1; FR2721647A1; EP0688925A1; CN1114998A; BR9502851A; EP0688925B1; DE69507546T2; DE69507546D1; ES2129706T3

Abstract

The lock consists of an outer stator barrel (14) and an inner rotor cylinder (12) with an eccentric head (42) projecting axially from its end face, e.g. to drive the locking mechanism. It also has a two-way spring (16) situated between the base of the barrel and the end face (34) of the rotor. The spring is in th form of a spiral with two parallel projecting end branches (40A,40B) to interact with the faces (50B) of the rotor drive head, and with lateral stop surfaces (64A,64B) on a barrel end projection. The body of the spring is wound around a concentric hub (36) on the rotor's end face, and the inner surface of the lock barrel has an axial recess for the passage of the eccentric head and the branches of the spring.

Description

The improved rotation lock of assembly method

The present invention relates to a kind of rotation lock.

Relate in particular to a kind of be used for driving be contained in the automotive openings place, such as the rotation lock of chamber door place latching device behind the truck body.

The present invention relates to use in order to drive the rotation lock of latching device, it has a stator, a rotor and an eccentric projection; Stator is the cover tubular, and cylindrical rotor rotates projection and deviates from the centre of gyration line of rotor and outstanding vertically from the radial end face of rotor one end in stator.

Example as this twist lock, in file FR-A-2642463, be illustrated and describe, but its illustrates and has described a kind of trip gear of operating snap close, there is a lock in this mechanism, lock has individual lock body, a rotating stator that is sleeve shaped is arranged in the lock body, can conceal elastic component and can change the angle of stator with respect to lock body; A rotating rotor is arranged in the stator, when not having key or wrong key to insert in the lock, rotor is motionless with respect to stator, when rotor rotation, can drive a finger of latching device, finger and rotor and cover for seat are rotated and simultaneously on same axis, elastic component is opposite with concealing, this mode does not drive latching device, finger links to each other with first lever that is hinged on first connecting axle of sleeve, this first lever is eccentric and drive it by the projection of rotor with respect to the axis of rotation of sleeve and rotor, the projection of rotor is eccentric with respect to axial line in the rotor revolution, the second lever collaborative work of transmission finger biconditional operation snap close, the relative lock body of this second lever is hinged on second axle, and second axle is eccentric with respect to axial line in the revolution of sleeve and rotor.

From the angle of function and reliability, to steal in the illegal unlatching of whole snap close preventing, such design is gratifying.

The present invention seeks to propose the assembling that a kind of perfect this lock of rotation lock can be realized simple and automatic different elements, especially the rotor relative stator is rotated the assembling automatically flexibly that resets.

In fact, this operation is complicated especially and by manually carrying out, because the sheet metal of other element of assembling such as assembling lock and sheet metal spring etc. have made this complicated operation.

For this reason, its characteristics of rotation lock that the present invention proposes a kind of aforementioned type are, it comprises the back-moving spring of a double action, rotor is rotated with respect to cover for seat and resets towards static intermediate angle position, and it is between the radial end face of the radially bottom surface of sleeve ends and rotor; This spring is a coil spring, both ends of the spring respectively has individual elbow, two elbows are parallel to each other, each elbow can with the driving side of projection body and with the lateral part surface collaborative work of the retaining head that on sleeve, forms, can two elbows of its end be fitted automatically with a retaining side by rotor and quill by rotor relative to the rotating of cover for seat to the spring of overhang bracket when also having characteristics to be these elements of assembling.

Of the present invention other are characterised in that:

The axial end portion of-retaining head has individual inclined-plane, a collaborative work in two elbows of this inclined-plane and spring end;

-helical spring is around the center pillar of a concentric, and this center pillar forms at the axial end portion place of rotor, and the sagittal plane of its end stretches to the sagittal plane of sleeve ends.

-drive lugs is in the axially-extending part of the axial end portion disalignment of rotor, and the inner cylinder face of sleeve has individual axial groove, so that two end bends of projection and spring can be passed through when rotor axially inserts in cover for seat.

An annular road junction is arranged at the bottom of-stator cover for seat, is convenient to axially passing through and rotation of projection.

-retaining head is arranged in the intermediate angle place at road junction, and two ends at road junction limit the limiting angle position of the relative sleeve of rotor;

One of them of approaching two ends, annular road junction of-axial groove;

-when resting position, drive lugs is inwardly with respect to the retaining head radially axially keeping off head and extend in relatively;

-drive lugs has that the thickness surplus is as radial flange outwardly, and the axial edge of its subtend cover for seat end is convenient to stop that the relative cover for seat of rotor moves axially.

Can be from following detailed description and with reference to the accompanying drawings, understand other feature and advantage of the present invention:

Fig. 1 is the phantom drawing that the critical element of twist lock of the present invention is taken apart;

Fig. 2 is the phantom drawing of the amplification of stator, back-moving spring and rotor before the assembling;

Fig. 3 view is similar to Fig. 2, is presented at rotor axial and inserts before the stator, and back-moving spring is located in the axial end portion of rotor;

Fig. 4 to Fig. 9 represents successively, and three elements shown in Fig. 2 and Fig. 3 are in the assembling process of determining and the relevant position when the use of lock.

Can see that from Fig. 1 and Fig. 2 the main composition of the lock 10-that the present invention relates to partly is a stator that is the cylindrical sleeves shape 14, a rotor 12 and a back-moving spring 16.

Stator 14 has cylindrical inner wall 18, and it defines a radially bottom surface 22 at axial end portion, and the open end 20 of sleeve so that rotor 12 from axial insertion.

The main composition of rotor 12 partly is a cylinder 24, and cylinder 24 axially inserts chamber 14 and rotates in its sleeve.

The cylinder 24 of rotor 12 has a head 26, be used for injecting the key (not shown) specially, the displacement of key control sheet metal group 28, sheet metal group 28 is contained in the line of rabbet joint 30 and the line of rabbet joint 32 by volume, the line of rabbet joint 30 is on rotor 12, and the line of rabbet joint 32 is on the annular post jamb of stator 14.

The radial end face 34 of rotor 12 1 ends will be accommodated in the inside of stator 14, and its central prolongation is circular center pillar 36, and the axis of center pillar 36 is on axis X-X that rotor 12 relative stator 14 are rotated.

This center pillar is used for admitting the main body 38 of back-moving spring 16, and back-moving spring 16 is coil springs.

Spring 16 has individual central disc around body 38 and two

end bends

40A, 40B, and two elbow radial outward are stretched out and are parallel to each other significantly.

Sagittal plane 34 places of rotor 12 ends have the drive lugs 42 of an off-centre equally.

From Fig. 1 and Fig. 2 as seen, the main composition of projection 42 partly is a projection body 44, and projection body 44 is with respect to the external cylindrical surface of the cylinder 24 of rotor 12 radial disbalance outwardly, and it axially stretches out from end sagittal plane 34.

Projection body 44 has individual thickness surplus 46, the latter is outstanding towards outer radial to surface 24, and it axially forwards the opposite of end sagittal plane 34 to, and the free end of projection body 44 has individual transmission leading edge 48, an element collaborative work of the latter and latching device drives latching device by rotor 12 and rotates.

Drive lugs body 44 limits two

drive side

50A and 50B (especially referring to Fig. 6 and Fig. 7), each side can with radially one of them collaborative work of

elbow

40A, 40B of end of spring 16.

When locating on center pillar 36, as shown in Figure 3, the setting of back-moving spring 16 is the drive side 50A and the 50B of the main body 44 that the radially elbow 40A of its end, 40B flexibly clamp drive lugs 42.

As can be seen from Fig. 3, rotor 12 and back-moving spring 16 are fitted together the formation composite member, and this composite member also comprises sheet metal 28, and composite member can be along the axis of orientation of arrow I among Fig. 3 in the cylindrical hole 18 that inserts stator 14.

For this reason, and in order to allow axially to insert elbow 40A, the 40B of drive lugs 42 and spring 16, individual axial groove 52 is arranged on the inwall of cylindrical hole 18, its inlet is positioned at the openend 20 in hole 18 and leads to radially bottom surface 22, end.

Especially can see that axial groove 52 leads to annular road junction 54 from Fig. 2, the latter forms on the cylindrical wall 56 of sleeve 14.

Extend on semicircle at annular road junction 54, and two

block face

58A and 58B limit its two ends.

Two

end face

58A and 58B also limit the angle stroke of rotor 12 with respect to stator 14, because the intervention of back-moving spring 16 respective end portions elbows, drive side 50A contacts with 58B with the end face 58A at annular road junction 54 in turn with 50B.

Especially can see from Fig. 2 that road junction 54 limits the annular radial edge of stators 14 cylindrical wall ends, it is divided into two

position

60A and 60B, axially staggers mutually, and is separated by retaining 62.

Position 60A leaves radially far away than position 60B of the distance of bottom surface 22 of end.

Retaining 62 centre position from

end ring edge

60A, 60B are that the intermediate angle position at road junction 54 is axially outstanding.

Retaining 62 axially stretches out, and radially meets at right angles bottom surface 22 with the end of stator 14.

Retaining 62 limits two lateral part surface 64A and a 64B, and each lateral part surface and spring 16 respective

end portions elbow

40A, 40B collaborative work will be described as the back.

The cross section 64A of retaining cephalic par is through inclined-plane 68, extends axially towards the free end edge 66 of retaining 62.

Be under the stroke situation of angle at rotor 12, the end ring edge 60A of

sleeve

14 and 46 collaborative works of thickness surplus, thickness surplus 46 also with position 70 collaborative works, position 70 is positioned at same plane with the position 60A of the cylinder annular wall of sleeve 14.

From location status shown in Fig. 3, the assembling of variant element is described now, spirality back-moving spring 16 has been contained on the center pillar 36 of rotor 12 ends among the figure.

Under this situation, the theta alignment axial groove 52 of drive lugs 42 makes rotor 12 and spring 16 can inject stator 14.Be inserted into the position shown in Fig. 4, sagittal plane 37 (see figure 3)s are radially blocked the bottom surface by the sleeve ends of stator 14 in the end of this position center pillar 36 always.

Drive lugs 42 and two

end bends

40A, 40B are axially outstanding at the end of stator 14 annular edge 60A, and are positioned at the top of the end face 58A at road junction 54.

Assembling subsequently is to order about rotor 12 relative stator 14 to rotate by direction shown in the arrow R among Fig. 4.

In this rotation process, the end bends 40B of back-moving spring (its axial location more approaches the radially end 22 than elbow 40A) contacts with the inclined-plane 68 on the retaining 62, as shown in Figure 5.

In this rotation process, drive lugs 42 also drives end bends 40A.

Rotor 12 relative stator 14 are when arrow R direction is rotated further among Fig. 5, end bends 40B and inclined-plane 68 collaborative works, elbow is by the end face 66 of retaining 62, and contacts with the lateral part surface 64B of retaining 62, and this moment, end bends 40A touched lateral part surface 64A face-to-face.

Fig. 6 and Fig. 7 represent this rigging position, and this moment, rotor 12 was in the static centre position of relative stator 14, and this position is coordinated mutually and determined with

drive side

50A, 50B and retaining side 64A, a 64B respectively by two

end bends

40A, 40B.

Thickness surplus 46 matches with the corresponding site of telescopic stator 14 end ring edges, makes rotor 12 with respect to stator 14 axial location.

Fig. 8 and Fig. 9 represent this lock working condition, rotor 12 and drive lugs 42 drive one of them of

end bends

40A, 40B together in turn, the elbow that is not driven by one among lateral part surface 64A, the 64B of retaining 62 stop, impel the elastic force accumulation of spring 16, this power causes immediately towards the elastic reset in the static centre position as shown in Fig. 6 and Fig. 7.

The maximum angle position of rotor 12 relative stator 14 is limited by the end face 58A and the 58B at road junction 54.

Equally, the rotor 12 that has spring 16 axially inserts by the easy of direction I, and subsequently towards the rotation of direction R, has guaranteed the automatic assembling of spring 16 in the operating position, and the axial restraint of rotor 12 relative stator 14.

Does not rotate at first even the time carry out rotor 12 relative stator 14 in assembling, during first use by lock, key drive rotor 12 also can make spring 16 in place by the step that illustrates previously.

As Fig. 8 and working condition shown in Figure 9, rotor 12 and drive lugs 42 drive one of them of

end bends

40A, 40B together in turn, this moment, elbow was not parked in towards the lateral part surface 64B of retaining 62 and the arbitrary block face among the 64A, impel power stack in spring 16, impelling thereupon again, generation elasticity arrives static centre position as shown in Fig. 6 and Fig. 7 again.

Claims

1. rotation lock that for example is used for driving a latching device, it comprises a telescopic stator (14), one is contained in the cylindrical rotor (12) that rotates in the stator (14), with a projection (42) eccentric with respect to rotor axis of rotation (X-X), projection is axially outstanding from the sagittal plane of rotor (12) end, it is characterized in that it comprises a double acting back-moving spring (16), rotor (12) relative to sleeve (14) when rotating spring (16) make it be returned to static intermediate angular positions.This intermediate angle position is in the radially bottom surface (22) of sleeve (14) end and rotor (12) end radially between bottom surface (34); Spring (16) is a coil spring, two end bends (40A, 40B) parallel significantly, each elbow can be respectively and the side (50A of drive lugs (42) body (44), one of 50B) and the lateral part surface (64A of the retaining head (62) on the sleeve (14), one of 64B) collaborative work, its feature also is, when these elements of assembling, be bearing in the back-moving spring (16) on the axial end portion (36) of rotor (12) and sleeve (14), relative to the rotating of sleeve (14), make the end bends (40A of spring (16) by rotor (12), 40B) (64A 64B) engages automatically with the side that keeps off head (62).

2. according to the described rotation lock of claim 1, it is characterized in that the axial end of retaining head (62) has individual inclined-plane (68), (40A) collaborative work of one of two end bends of it and back-moving spring (16).

3. according to claim 1 or 2 described rotation locks, it is characterized in that helical spring (16) body (38) centers on together post (36) in the heart, center pillar is positioned at the axial end portion of rotor, the radially bottom surface (22) of the sagittal plane of its end (37) subtend sleeve (14) end.

4. according to the described rotation lock of claim 1, it is characterized in that drive lugs (42) is positioned at rotor (12) axial end (34) and locates on the eccentric axially-extending part; And the inner cylinder (18) of sleeve (14) has individual axial groove (52), is convenient to that (40A 40B) can pass through when rotor (12) makes two end bends of projection (42) and spring (16) when inserting cover for seat (14).

5. according to the described rotation lock of claim 4, it is characterized in that individual ring-type road junction (54) is arranged at the bottom (22) of stator sleeve (14), be convenient to drive lugs (42) and axially pass through and rotation.

6. according to the described rotation lock of claim 5, it is characterized in that retaining head (62) is arranged in the intermediate angular positions of road junction (54), (58A 58B) limits rotor (12) the limiting angle position of sleeve (14) relatively in two ends of road junction (54).

7. according to claim 5 or 6 described rotation locks, it is characterized in that axial groove (52) leads to (54) two ends, annular road junction one of them (58A).

8. according to the described rotation lock of claim 1, it is characterized in that drive lugs (42) when resting position, relatively retaining head (62) stretches out in the axial direction, diametrically towards.

9. according to the described rotation lock of claim 1, it is individual towards the outstanding thickness surplus (46) of outer radial to it is characterized in that drive lugs (42) has, and it is facing to the axial edge of sleeve (14) end, so that the axial location of the relative sleeve (14) of rotor (12).