CN100503320C

CN100503320C - Turning locking device

Info

Publication number: CN100503320C
Application number: CNB2007100050227A
Authority: CN
Inventors: 长江和明; 河合义广
Original assignee: Tokai Rika Co Ltd
Current assignee: Tokai Rika Co Ltd
Priority date: 2006-02-17
Filing date: 2007-02-09
Publication date: 2009-06-24
Anticipated expiration: 2027-02-09
Also published as: JP4694384B2; JP2007216891A; CN101024391A

Abstract

The invention provides a swerve locking apparatus, which may not break even the swerving axis is rotated by being applied over force in state that the column locking apparatus is in locking state and locks the swerving axis to be unable to rotate by combining with the swerving axis. The swerving locking apparatus comprises: lock body having a tabling section installed by tabling with installation hole section of the swerving column supporter of vehicle; a locking bar being contained inside of the lock body and moving between the locking position of the locking the swerving axis and start position of releasing the locking; and a reinforcing section arranged between the tabling section arranged on the lock body and above installation hole of the swerving column supporter.

Description

Lenkradschlossvorrichtung

Technical field

The present invention relates to a kind of Lenkradschlossvorrichtung that is applicable in the vehicles such as automobile.

Background technology

As Lenkradschlossvorrichtung in the past, for example, following device is arranged.The lock body of Lenkradschlossvorrichtung has integratedly: main part, and it is installed in the Steering gear part of automobile, and accommodates the cylinder lock machine of the rotating operation by key; Guide part, its from this main part towards the side-prominent setting of steering shaft.Rear at this cylinder lock machine, be provided with the cam part that is positioned at main part and rotates integratedly with the key rotor of lock core, in addition, be equipped with transportable Lock Part in above-mentioned guide part, this Lock Part is by being around the frame shape of cam part and utilizing spring and be pushed to the locking bar that the lock piece of steering shaft side and an end and this lock piece link and constitute.

And, being subjected to when the cylinder lock machine under the state of locking state (the key rotor is positioned at " LOCK " position), Lock Part utilizes the application force of spring to move to latched position, the top ends of locking bar and steering shaft side engagement and lock this steering shaft it can not be rotated.On the other hand, constitute: when the cylinder lock machine when locking state becomes opening (the key rotor is positioned at " ACC " or " ON "), utilize cam part to make Lock Part overcome the application force of spring, and move to the latch-release position of a side opposite with the steering shaft side, and releasing is with respect to the joint of the locking bar of steering shaft, allow the rotation (for example, referring to Patent Document 1) of steering shaft thus.

In addition, as other Lenkradschlossvorrichtung in the past, for example, the lock body utilization of Lenkradschlossvorrichtung is located at the fitting portion on this lock body and is installed on the Steering gear part, and lock body is by the metal of aluminium etc. and the parts (for example, referring to Patent Document 2) that form.

Patent documentation 1: Japanese patent laid-open 10-264770 communique

Patent documentation 2: the Japanese Patent spy opens the 2004-314745 communique

Yet, according to patent documentation 2, the cylinder lock machine is subjected to locking state and locks this steering shaft with the steering shaft side engagement and makes under its state that can not rotate, if wanting that steering shaft is imposed excessive power makes its rotation, then might the fitting portion that be located on the lock body be cut and damaged situation by locking bar.

In addition, above-mentioned by the state of locking and locking in, with regard to the torsional torque of regulation, also be necessary to satisfy the necessary condition on the decree, thus make do not take place in steering shaft or the Lenkradschlossvorrichtung unusual.

Summary of the invention

The object of the present invention is to provide a kind of Lenkradschlossvorrichtung, wherein, the cylinder lock machine is subjected to locking state, engages with steering shaft and lock this steering shaft to make under its state that can not rotate, even steering shaft is applied excessive power, also breakage etc. can not take place.

According to a mode of the present invention, a kind of Lenkradschlossvorrichtung is provided, it is characterized in that having: lock body, it has fitting portion chimeric with the mounting hole portion of the Steering gear pillar of vehicle and that be mounted; Locking bar, it is contained in the inside of aforementioned lock body, and in the latched position of locking steering shaft with remove between the open position of aforementioned locking and move; Strengthening part, it is configured between the aforementioned mounting hole portion of the aforementioned fitting portion be located on the aforementioned lock body and aforementioned Steering gear pillar.

According to the embodiment of the present invention, a kind of Lenkradschlossvorrichtung can be provided, and it is subjected to locking state at the cylinder lock machine, and locks its steering shaft with the steering shaft side engagement and make under its state that can not rotate, make its rotation even steering shaft is applied excessive power, also breakage etc. can not take place.

Description of drawings

Fig. 1 is the figure that is illustrated in the Lenkradschlossvorrichtung 20 that the relevant embodiments of the present invention of installing on the Steering gear pillar 10 of vehicle of automobile etc. relate to.

Fig. 2 is for representing to be installed in the figure of the Lenkradschlossvorrichtung 20 under the state on the Steering gear pillar 10, it represents Lenkradschlossvorrichtung 20 usefulness screws are installed in the section of the part on the Steering gear pillar 10, is the A-A cutaway view of the top of the Lenkradschlossvorrichtung 20 among Fig. 1.

Fig. 3 is the figure of the section of the expression inner structure that is used to illustrate Lenkradschlossvorrichtung 20, is the B-B cutaway view among Fig. 2.

Fig. 4 is the figure of expression as the shape of the gear 34 of finishing bevel gear cuter, (a) is birds-eye view, (b) is front view.

Fig. 5 is the figure of the installation portion 23 of expression lock body 21, is the figure that observes installation portion 23 among Fig. 2 from the C direction (a), (b) is D-D cutaway view among Fig. 5.

Fig. 6 represents the shape of brace panel 60, (a) is front view, (b) is lateral plan.

Fig. 7 represents the brace panel 61 of other shape, (a) is front view, (b) is lateral plan.

Fig. 8 is illustrated in the Lenkradschlossvorrichtung 20, the figure of the state that the joint of locking bar 49 and steering shaft 13 is disengaged.

Nomenclature is as follows:

1 bearing circle; 5 ignition locks; 10 Steering gear pillars;

11 installing components; 12 mounting screws; 13 steering shafts;

20 Lenkradschlossvorrichtungs; 21 lock bodies; 22 locking closures;

23 installation portions; 24 install tapped bore portion; 30 lock cores;

31 key rotors; 32 keys insert mouth; 33 keys;

34 gears; 40 main parts; 41 bolsters;

42 teeth; 43 junction surfaces; 44 dip plane;

45 maintenance faces; 46 gear mounting holes; 47 gears;

48 slide blocks; 49 locking bars; 50 circular holes;

51 coil springs; 60,61 brace panels.

The specific embodiment

Fig. 1 is installed in the figure of the Lenkradschlossvorrichtung 20 that the embodiments of the present invention on the Steering gear pillar 10 of vehicle of automobile etc. relate to for expression.

Shown in above figure, Lenkradschlossvorrichtung 20 possesses lock body 21.Lock body 21 is formed by the material of regulation, for example, is formed by magnesium alloy die casting or aluminum alloy die casting, and has integratedly: the locking closure 22 that the round-ended cylinder shape is arranged; From the part of the bottom side (Fig. 2, the left side) of locking closure 22, with the installation portion 23 of outstanding formation under the state of the inclined predetermined angular of relative locking closure 22.With this lock body 21, on the assigned position of Steering gear pillar 10, adopt installing component 11, the mounting screw 12 by in the installation tapped bore portion 24 that is formed at installation portion 23 is installed on the Steering gear pillar 10 of vehicle.During this was installed, fitting portion 23a was by chimeric and be installed among the embedded hole 10a of the summary elliptical shape that is formed on the Steering gear pillar 10.Between fitting portion 23a and embedded hole 10a as the mounting hole portion of Steering gear pillar 10, brace panel 60 is installed being formed on the brace panel mounting groove 23b of installation portion 23, but omits diagram among Fig. 2, specifically in Fig. 5, represent.

Under this lock body 21 is installed in state on the Steering gear pillar 10, can be in from the outstanding locking bar described later 49 of the summary central portion of installation portion 23, engage or disengaged state with the slot part 13a of steering shaft 13.

In Steering gear pillar 10 sides of lock body 21, and by on the vehicle front side, be fixed on the lock body 21 as the ignition lock 5 of rotor switch.This ignition lock 5 is connected with control circuit not shown in the figures on being located at vehicle by distribution not shown in the figures.

In addition, the inside at the locking closure 22 of lock body 21 is provided with lock core 30 cylindraceous.Though this lock core 30 does not show in the drawings, but not being fixed on the lock body 21 from the mode that easily dismantle the outside of lock body 21. the key rotor 31 of this lock core 30, be formed with key and insert mouth 32, by insert mouthful rotating operation of 32 keys 33 that insert from this key, key rotor 31 can rotate predetermined angular. and, gear 34 as finishing bevel gear cuter engages with the key rotor 31 of this lock core 30, and gear 34 and key rotor 31 rotate integratedly.

Fig. 4 is the figure of expression as the shape of the gear 34 of finishing bevel gear cuter, (a) is last birds-eye view, (b) is front view.Gear 34 is made of gear body 40 and bolster 41, and on the top ends of gear body 40, the only about half of position of outer peripheral edges portion is formed with tooth 42.In addition, in a side that does not form tooth 42 of gear body 40, be formed with from the outstanding junction surface 43 of the periphery of gear body 40.At the junction surface 43 one-sided, be formed with the dip plane 44 of the axis direction inclination predetermined angular of relative gear 34, an end of this dip plane 44 and the maintenance face 45 at junction surface 43 are continuous.The continuous part that this dip plane 44 and maintenance face are 45, the base end side (downside among Fig. 4 (b)) to gear 34 forms highlightedly a little.

In the gear body 40 of gear 34, the centre of top ends is given prominence to the cylindric bolster 41 that is formed with gear body 40 coaxial shapes.Gear 34 is by inserting logical bolster 41 in the gear mounting hole 46 that forms on the diapire 22a of the locking closure 22 of lock body 21, and be rotatably supported in lock body 21.

On the tooth 42 of gear 34,, be engaged with gear 47 as finishing bevel gear cuter in ignition lock 5 one sides.The center shaft of gear 47 is configured in the mode of the center shaft orthogonal of relative gear 34, and the axle of the contact of gear 47 and switching ignition lock 5 links.So gear 47 rotates by the rotation of gear 34, thereby ignition lock 5 is rotated, and the contact of ignition lock 5 is switched.

In addition, in the rear view of vehicle side of gear 34, forming slightly, the slide block 48 of L word shape contacts with the dip plane 44 at the junction surface 43 of gear 34.And, on the rear view of vehicle side of this slide block 48, be provided with locking bar 49.Locking bar 49 is slightly rectangular bar-shaped in cross section, and engages the protrusion 48a that slide block 48 is arranged among the slot part 49a that forms on the length direction pars intermedia.

Base end part (end on right side among Fig. 3) at locking bar 49 is formed with circular hole 50.And, between the inwall of this circular hole 50 and lock body 21, be equipped with coil spring 51, always push locking bar 49 to steering shaft 13 1 sides.In addition, the top ends of this locking bar 49 (among Fig. 1 left side end) forms with respect to the inclined predetermined angular of locking bar 49, and constitutes this top ends and can be in the slot part 13a of steering shaft 13 and engage or asynthetic state.

This locking bar 49 along the latch arm hole 21a that is provided with, can and remove between the open position of locking of steering shaft 13 being maintained at movably on the lock body 21 in the latched position (shown position of Fig. 3) of locking steering shaft on lock body 21.

Fig. 5 is the figure of the installation portion 23 of expression lock body 21, (a) for watch the figure of installation portion 23 among Fig. 2 from the C direction, (b) is D-D cutaway view among Fig. 5.

With lock body 21, on the assigned position of Steering gear pillar 10, adopt installing component 11, the mounting screw by in being formed at the installation tapped bore portion 24 of installation portion 23 is installed on the steering shaft pillar 10 of vehicle.

On Steering gear pillar 10, be through with the embedded hole 10a of the summary elliptical shape that is used to assemble lock body 21.

On installation portion 23, for being formed with peripheral projection, and be embedded in fitting portion 23a among the embedded hole 10a of above-mentioned Steering gear pillar 10 with respect to Steering gear pillar 10 location.At the both ends of the circumferencial direction of the Steering gear pillar 10 of fitting portion 23a, be formed with brace panel mounting groove 23b with the width W 2 of regulation.

Fig. 6 represents the shape of brace panel 60, (a) is front view, (b) is lateral plan.Brace panel 60 is formed by wide width part 60a, inclined plane part 60b, the 60c of curvature portion and narrow width part 60d, among the 60c of curvature portion, utilizes bending machining and forms slightly U word shape with regulation curvature.In addition, the width W shown in the figure 1 forms wideer than the wide W2 of brace panel mounting groove 23b.The material that brace panel 60 is preferably by excellent spring, high hardness forms, and is formed by the material harder than the material that forms lock body 21, is preferably bainitic steel, SK steel especially.In addition, also can be preferably under Vickers hardness (JIS Z 2244), have the material of the above hardness of Hv400.

Fig. 7 represents the brace panel of other shape, (a) is front view, (b) is lateral plan.This brace panel 61 by board 61a, and the 61b of spring portion forms, the 61b of spring portion is by the part of board 61a being carried out stamping-out processing, and carries out bending machining with the angle of stipulating and form.Width W 1 shown in the figure forms also wideer than the width W 2 of brace panel mounting groove 23b.The material that brace panel 61 is preferably by excellent spring, high hardness forms, and forms by understanding hard material than the material that forms lock body 21, is preferably bainitic steel, SK steel especially.In addition, also can be preferably under Vickers hardness (JIS Z 2244), have the material of the above hardness of Hv400.

Here, among Fig. 5, brace panel 60 with regulation in being embedded in brace panel mounting groove 23b, or be installed on wherein.Utilize method of press-fitting though install, but be not limited to this, also can adopt methods such as bonding, welding, in addition, if brace panel 60 is configured in fitting portion 23a and as the state between the embedded hole 10a of mounting hole portion, then can have given play to the function as brace panel.With regard to the installation of brace panel 61, the same with the installation of above-mentioned brace panel 60.

Then, the effect to present embodiment describes.Fwd Fig. 3 is illustrated in the Lenkradschlossvorrichtung 20, the state that locking bar 49 engages with steering shaft 13.

Fig. 8 is illustrated in the Lenkradschlossvorrichtung 20, the figure of the state that the joint of locking bar 49 and steering shaft 13 is disengaged.In the Lenkradschlossvorrichtung 20 of above-mentioned formation, under the state (shown position of Fig. 3) that locking bar 49 and steering shaft 13 engage, the key rotor 31 of lock core 30 is positioned on " LOCK " position.Then, if key 33 being inserted into the key of key rotor inserts in the mouth 32, and with key rotor 31 to operating position (" ACC ", " ON ", " START ") when carrying out rotating operation, utilize the gear 34 that rotates integratedly with key rotor 31, and ignition lock 5 is rotated by gear 47.

This moment in addition, by the rotation of gear 34, and the slide block 48 that contact with the dip plane 44 at the junction surface 43 of gear 34, slide with dip plane 44 and mobile to a side (right side among Fig. 8) opposite with steering shaft 13.Therefore, the locking bar 49 that the protrusion 48a of slide block 48 engages with slot part 49a, overcome coil spring 51 application force and to a side shifting opposite with steering shaft 13.Then, as shown in Figure 8, when slide block 48 arrives on the maintenance face 45 at junction surface 43 of gears 34, fully removed based on the locking of the steering shaft 13 of locking bar 49, and utilize slide block 48 that locking bar 48 is remained on the latch-release position.

In addition, in the junction surface 43 of gear 34, continuous part between dip plane 44 and the maintenance face 45 is to the base end side of gear 34 outstanding (with reference to figure 4 (b)), therefore can prevent when slide block 48 on the maintenance face that remains on 45 is unnecessary situation to dip plane 44 side shiftings.When thus, preventing that locking bar 49 is unnecessary to the side-prominent situation of steering shaft 13.

On the other hand, under the state that locking bar 49 is moved to the latch-release position (shown position of Fig. 8), insert key 33 in mouthfuls 32 when " LOCK " rotated position is operated if will be inserted into the key of key rotor 31, gear 34 and key rotor 31 rotate integratedly, and slide block 48 moves to the dip plane 44 at junction surface 43 from the maintenance face 45 at the junction surface 43 of gear 34.Therefore, locking bar 49 application force by coil spring 51 with slide block 48 to steering shaft 13 side shiftings.Thus, locking bar 49 engages with the slot part 13a of steering shaft 13, and locking steering shaft 13.

In Lenkradschlossvorrichtung 20, be positioned at when key rotor 31 under the occasion of " LOCK ", it is side-prominent to steering shaft 13 to be in locking bar 49, and engages the state that locks steering shaft 13 with the slot part 13a of steering shaft 13.Under this state,, also can stop the rotation of steering shaft 13 owing to the locking bar 49 that engages with slot part 13a, the gap of the idle running between slot part 13a and the locking bar 49 so bearing circle is except rotating even think hand of rotation dish 1.

Under this state, if hand of rotation dish 1 obstinately, the rotational force that then is applied on the bearing circle 1 is delivered on the steering shaft 13, and transmits excessive power from the slot part 13a of steering shaft 13 to locking bar 49.Thereby, be applied to the excessive power on the locking bar 49, be applied on the fitting portion 23a by brace panel 60.

Yet, in embodiments of the present invention, because brace panel 60 is formed by the material harder than the material that forms lock body 21, so can suppress the damage that fitting portion 23a is cut because of above-mentioned excessive power. particularly, when fitting portion 23a and lock body 21 integratedly by magnesium alloy die casting, when perhaps aluminum alloy die casting forms, intensity a little less than, more can bring into play the effect of brace panel 60.

In addition,,, have the material of the above hardness of Hv400, more can bring into play the effect of brace panel 60 effectively by using under the Vickers hardness (JIS Z 2244) as brace panel 60.Above-mentioned effect is suitable for too to brace panel 61.

Yet, be under the occasion of lock-out state at Lenkradschlossvorrichtung 20, with regard to the torsional torque of regulation, also be necessary to satisfy the necessary condition on the decree, thereby in steering shaft 13 or Lenkradschlossvorrichtung 20, do not take place unusual.For example, as a reference value, it is the strength condition of 300Nm that torsional torque is arranged. according to the embodiment of the present invention, by brace panel 60 is located at fitting portion 23a, the Lenkradschlossvorrichtung 20 that satisfies above-mentioned necessary condition becomes possibility.Above-mentioned effect is suitable for too to brace panel 61.

Claims

1. Lenkradschlossvorrichtung is characterized in that having: lock body, and it has fitting portion chimeric with the mounting hole portion of the Steering gear pillar of vehicle and that be mounted; Locking bar, it is contained in the inside of aforementioned lock body, and in the latched position of locking steering shaft with remove between the open position of aforementioned locking and move; Strengthening part, it is configured between the aforementioned fitting portion be located on the aforementioned lock body and the aforementioned mounting hole portion.

2. Lenkradschlossvorrichtung as claimed in claim 1 is characterized in that: aforementioned strengthening part is formed by the material harder than the material of aforementioned lock body.

3. Lenkradschlossvorrichtung as claimed in claim 2 is characterized in that: aforementioned strengthening part is formed by bainitic steel or SK steel.

4. Lenkradschlossvorrichtung as claimed in claim 2 is characterized in that: it is the above hardness of Hv400 under the JIS Z 2244 that aforementioned strengthening part has Vickers hardness.

5. Lenkradschlossvorrichtung as claimed in claim 1 is characterized in that: aforementioned strengthening part is embedded in the brace panel mounting groove that forms on aforementioned fitting portion.

6. Lenkradschlossvorrichtung as claimed in claim 1 is characterized in that: aforementioned strengthening part is by forming with the lower part: the wide width part of the Rack between the aforementioned mounting hole portion of aforementioned fitting portion and aforementioned Steering gear pillar; Be positioned at the also little narrow width part of the aforementioned Rack of ratio of the opposition side of aforementioned wide width part; Make the width of the aforementioned wide width part narrow and small inclined plane part that promptly becomes the width of aforementioned narrow width part that becomes; The curvature portion of the regulation curvature that between aforementioned inclined plane part and aforementioned narrow width part, forms.

7. Lenkradschlossvorrichtung as claimed in claim 6 is characterized in that: aforementioned strengthening part utilizes bending machining to form slightly U word shape with aforementioned regulation curvature in aforementioned curvature portion.

8. Lenkradschlossvorrichtung as claimed in claim 1 is characterized in that: aforementioned strengthening part forms by the board of the Rack between the aforementioned mounting hole portion of aforementioned fitting portion and aforementioned Steering gear pillar with by the part of aforementioned board being carried out stamping-out processing and carry out the spring portion that bending machining forms with the angle of regulation.

9. Lenkradschlossvorrichtung as claimed in claim 7 is characterized in that: in the aforementioned strengthening part, the width W 1 of aforementioned slightly U word shape or aforementioned bending machining forms bigger than the width W 2 of the brace panel mounting groove that forms on aforementioned fitting portion.