JP2009264012A - Locking-unlocking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking-unlocking device which can reduce an operational load at unlocking by enabling the unlocking of a locking mechanism to be switched by a small rotational operation force. <P>SOLUTION: This locking-unlocking device includes: a cylinder lock 2 which has a key rotor 2B can be operated by a match key K, and a rotor case 2A can house the key rotor 2B inside; a rotary lever 3 which is rotated by the operation of the key rotor of the cylinder lock 2, and unlocks the locking mechanism of a trunk; and a moderation mechanism 4 which has a moderation portion 22A provided in the rotor case 2A, a moderation piece 4A interposed between the moderation portion 22A and the rotary lever 3 in such a manner as to be capable of advancing and receding, and a spring 4B can bring the moderation piece 4A into pressure-contact with the moderation portion 22A. In the moderation mechanism 4, a piece guiding surface 222A for guiding the moderation piece 4A in the direction of applying a resilient force of the spring 4B as an unlocking assisting force to the rotary lever 3 is provided in the moderation portion 22A. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a locking / unlocking device, and more particularly to a locking / unlocking device having a function of locking / unlocking a lock mechanism by a key plug operation of a cylinder lock.

  As is well known, a vehicle such as an automobile incorporates a locking / unlocking device for opening or closing the door panel by locking or unlocking the door lock mechanism of the door panel.

  In recent years, for the purpose of improving the operability of vehicles, this type of locking / unlocking device electronically unlocks the door lock mechanism when the owner (driver) approaches the vehicle and operates the vehicle. A device having a function (smart entry function) for electronically locking a door lock mechanism when a person leaves the vehicle has been proposed.

  Such a locking / unlocking device is also provided with a function of mechanically performing locking / unlocking, assuming that electronic locking / unlocking becomes impossible.

  As a conventional locking / unlocking device of this type, for example, there is a device provided with a door lock actuator that performs locking / unlocking by switching the connection of an actuator link mechanism housed inside (Patent Document 1).

  The locking / unlocking device includes a handle link mechanism that generates a rotational motion by rotating the door handle, a handle rod that generates a downward linear motion by the rotational motion of the handle link mechanism, and a linear motion of the handle rod. And a connecting lever mechanism for transmitting to the actuator link mechanism.

  The locking / unlocking device includes a cylinder lock housed in a door handle having a key rotor that is rotated by a rotation operation by inserting a regular key (match key) into a key insertion hole, and a key rotor of the cylinder lock. It has a cylinder locking rod that is rotated by a rotating motion, and a key lever mechanism that transmits the rotating motion of the cylinder locking rod to the actuator link mechanism described above.

  In such a locking / unlocking device, when the key rotor is rotated in one direction from the neutral position by the rotation operation of the match key into the cylinder lock, the rotation is transmitted to the key lever mechanism via the cylinder locking rod. Then, the operation of the key lever mechanism switches the on / off state of the actuator link mechanism in the door lock actuator, and the door lock mechanism is changed from the locked state to the unlocked state.

  Thereafter, when the door handle is operated in the direction to open the door panel, the rotation operation of the door handle is transmitted to the handle rod via the handle link mechanism. When the handle rod linearly moves downward by the turning operation of the door handle, the linear motion is transmitted to the actuator link mechanism via the connecting lever mechanism. When the actuator link mechanism operates, the door lock mechanism is unlocked, and the door panel is opened.

On the other hand, when the key rotor is rotated in the other direction from the neutral position by the operation of inserting and rotating the match key into the cylinder lock in the unlocked state of the door lock mechanism, this rotation is transmitted to the key lever mechanism via the cylinder locking rod. Then, the actuator link mechanism is operated by the operation of the key lever mechanism, and the door lock mechanism is changed from the unlocked state to the locked state.
JP 2002-129805 A

  However, the locking / unlocking device disclosed in Patent Document 1 requires a large rotational operation force when switching the door lock mechanism from the locked state to the unlocked state and from the unlocked state to the locked state. There was a problem that the operation load at the time of locking increased.

  Accordingly, an object of the present invention is to provide a locking / unlocking device that can switch between locking and unlocking with a locking mechanism with a small rotational operation force, and can reduce the operation load during locking and unlocking. It is to provide.

(1) In order to achieve the above object, the present invention provides a key lock that can be operated by a match key, a cylinder lock having a plug case that can accommodate the key plug therein, and a key plug operation of the cylinder lock. A rotation member that rotates and unlocks the locking mechanism of the opening and closing member; a moderation portion provided in the plug case; a moderation piece that is movably interposed between the moderation portion and the rotation member; and A moderation mechanism having a spring capable of pressing the moderation piece against the moderation portion, and the moderation mechanism is configured to apply the elastic force of the spring to the rotating member as an assisting force for unlocking. The unlocking device is characterized in that a piece guide surface for guiding the guide is provided in the moderation portion.

(2) In the unlocking device according to the above (1), the cylinder lock is formed by a key rotor in which the key plug is rotated by an operation of inserting a match key.

(3) In order to achieve the above object, the present invention provides a key lock that can be operated by a match key, a cylinder lock having a plug case that can accommodate the key plug therein, and a key plug operation of the cylinder lock. A rotation member that rotates and locks the locking mechanism of the opening and closing member, a moderation portion provided in the plug case, a moderation piece that is interposed between the moderation portion and the rotation member so as to advance and retreat, and the moderation A moderation mechanism having a spring capable of pressing the piece against the moderation portion, and the moderation mechanism guides the moderation piece in a direction in which the elastic force of the spring is applied to the rotating member as an assisting force for locking. A locking device is provided in which a piece guiding surface is provided on the moderation portion.

  According to the present invention, switching between locking and unlocking in the lock mechanism can be performed with a small rotational operation force, and the operation load during locking and unlocking can be reduced.

[First embodiment]
FIG. 1 is a perspective view showing a vehicle in which an unlocking device according to a first embodiment of the present invention is incorporated. FIG. 2 is a rear view for explaining the unlocking device according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line AA of FIG. 4 is a cross-sectional view taken along line BB in FIG. 5 is a cross-sectional view taken along the line CC of FIG. FIG. 6 is a cross-sectional view showing a state in which the match key is inserted into the cylinder lock of the unlocking device according to the first embodiment of the present invention.

[Overall configuration of unlocking device]
1 to 5, the unlocking device denoted by reference numeral 1 is a cylinder lock 2 for unlocking a trunk locking mechanism (not shown) of an automobile A, and the insertion time of the match key K to the cylinder lock 2. The rotation lever 3 is rotated by a moving operation, and the moderation mechanism 4 is configured to apply a moderation force to the rotation lever 3.

(Configuration of cylinder lock 2)
As shown in FIG. 6, the cylinder lock 2 includes a rotor case 2 </ b> A as an exterior member and a key rotor 2 </ b> B that can be turned by inserting and turning the match key K.

  The rotor case 2A is formed of a round box having an internal space 20A in which the key rotor 2B can be accommodated, and is fixed to the trunk a of the automobile A via a bracket 100. The rotor case 2A is provided with tumbler fitting holes 21A and 21A that open to the inner peripheral surface thereof and communicate with the internal space 20A. A moderation portion 22A constituting a part of the moderation mechanism 4 is provided on the inner peripheral surface of the rotor case 2A.

  The key rotor 2B has a key insertion / removal hole 20B through which the match key K can be inserted / removed. The key rotor 2B is rotatably accommodated in the internal space 20A of the rotor case 2A, and a return habit is imparted by a key rotor return spring (not shown). Has been. Then, in a state where the match key K is inserted into the key insertion / removal hole 20B, the match key K is rotated in the range of an angle (θ + α) from the initial position to a predetermined rotation position by unlocking the match key K, and the trunk locking mechanism is unlocked Is configured to do.

  The key rotor 2B is provided with a plurality of tumbler arrangement holes 21B, 21B,... Penetrating in a direction orthogonal to the axis thereof and communicating with the key insertion / removal hole 20B along the key insertion / removal direction. In the tumbler arrangement holes 21B, 21B,..., A plurality of tumblers 22B, 22B,... Are arranged so as to be able to advance and retreat in a direction orthogonal to the axis of the key rotor 2B.

  The tumblers 22B, 22B,... Are arranged at a predetermined interval in the axial direction of the key rotor 2B, and are given return habits by tumbler return springs (not shown). The tumblers 22B, 22B,... Are respectively provided with key fitting grooves 220B, 220B,.

(Configuration of rotating lever 3)
As shown in FIGS. 2 to 5, the rotating lever 3 includes a lever body 30 having a substantially circular cross section and a wire connecting portion 31 having a substantially plane I shape, and is opposite to the key insertion side end of the key rotor 2 </ b> B. Is connected to the end of the ring by a retaining ring 200 such as an E-ring. And it is comprised so that it may rotate in the direction which unlocks the trunk locking mechanism by rotation operation of the key rotor 2B, and it will return to rotation by cancellation | release of rotation operation of the key rotor 2B.

  The lever main body 30 has a rotor connecting portion 300 that is connected to the key rotor 2B, and is disposed in the rotor case 2A. The lever main body 30 is provided with a piece accommodating hole 301 that opens to the outer peripheral surface.

  The wire connecting portion 31 protrudes integrally from the outer peripheral surface of the lever main body 30 and is connected to the trunk locking mechanism via the wire 400.

(Configuration of moderation mechanism 4)
As shown in FIGS. 3 and 4, the moderation mechanism 4 includes a moderation piece 4A and a spring 4B in addition to the moderation portion 22A of the rotor case 2A, and is disposed between the rotor case 2A and the rotation lever 3. Yes.

  The moderation portion 22A includes a piece positioning concave hole 220A capable of positioning the moderating piece 4A in the circumferential direction of the rotor case 2A, a piece sliding surface 221A connected to the inner surface of the piece positioning concave hole 220A, and the piece sliding surface 221A. The piece guide surface 222A is connected to the inner surface of the piece positioning concave hole 220A via the inner surface of the rotor case 2A as described above. And it is comprised so that the elastic force of the spring 4B may be received via the moderation piece 4A.

  The piece positioning recess 220A is formed by a recess having a substantially V-shaped cross section. Then, the moderation piece 4A is positioned inside, and the key rotor 2B is positioned at the initial position together with the rotation lever 3. As a result, the moderation piece 4A moves from the inside of the piece positioning recess 220A to the outside of the piece positioning recess 220A against the elastic force of the spring 4B at the start of the turning operation of the match key K into the key insertion hole 20B. An operation feeling at the time of starting insertion rotation operation of the match key K into the key insertion / extraction hole 20B is obtained.

  The piece sliding surface 221A is disposed between the piece positioning recess 220A and the piece guiding surface 222A. The moderation piece 4A is configured to slide in the circumferential direction of the rotor case 2A.

  The piece guide surface 222A is an inner surface of a recess 223A formed by denting the inner peripheral surface of the rotor case 2A with respect to the piece sliding surface 221A, and is a direction gradually separating from the rotation center O of the rotation lever 3 It is formed by the inclined surface extended in the direction. And it is comprised so that the moderation piece 4A may be induced | guided | derived to the direction which provides to the rotation lever 3 by using the elastic force of the spring 4B as the assist force for unlocking. Thereby, the switching of unlocking in the trunk locking mechanism is performed with a small rotational operation force.

  The moderation piece 4A includes a curved surface portion 40A that fits the inner surface of the piece positioning concave hole 220A, and a base portion 41A that is connected to the curved surface portion 40A, and is disposed between the rotating lever 3 and the rotor case 2A. In addition, the curved portion 40A is exposed in the rotor case 2A in the piece receiving hole 301 so as to be able to advance and retreat.

  The spring 4B is elastically mounted between the base 41A of the moderation piece 4A and the bottom surface of the piece accommodating hole 301. The moderation piece 4A is configured to be pressed against the moderation portion 22A.

[Operation of the unlocking device 1]
Next, the operation of the unlocking device 1 shown in the present embodiment will be described with reference to FIGS. 7 (a) and 7 (b). FIGS. 7A and 7B are cross-sectional views illustrating the switching operation of the unlocking device according to the first embodiment of the present invention. FIG. 7A shows the locked state, and FIG. 7B shows the unlocked state.

  In the unlocking device 1 shown in the present embodiment, in order to switch the trunk locking mechanism from the locked state to the unlocked state, first, the match key K is inserted into the key insertion hole 20B of the cylinder lock 2.

  In this case, when the match key K is inserted into the key insertion hole 20B of the key rotor 2B, the key fitting grooves 220B, 220B,... Of the tumblers 22B, 22B,. And the tumblers 22B, 22B,... Are disengaged from the tumbler fitting holes 21A, 21A, and the key rotor 2B becomes rotatable.

  Next, the match key K is turned in the unlocking direction from the initial position shown in FIG. 7A to the predetermined turning position shown in FIG. 7B.

  In this case, when the match key K is rotated from the initial position toward the rotation position (θ + α), the key rotor 2B and the rotation lever 3 are rotated in the rotation operation direction of the match key K. When the key rotor 2B and the rotation lever 3 reach the rotation position θ, the turning force is transmitted to the trunk lock mechanism via the wire 400 as an unlocking force. For this reason, the trunk locking mechanism is switched from the locked state to the unlocked state.

  Further, the moderation piece 4A positioned in the piece positioning recess 220A by the rotation operation of the match key K moves out of the piece positioning recess 220A while retracting into the piece receiving hole 301 against the elastic force of the spring 4B. The curved surface portion 40A moves and is placed on the piece sliding surface 221A.

  When the moderation piece 4A slides on the piece sliding surface 221A and reaches the piece guiding surface 222A, the spring 4B receives the elastic force of the spring 4B in a direction away from the piece sliding surface 221A and moves out of the piece receiving hole 301. It slides on the piece guiding surface 222A while proceeding.

  For this reason, in the region from the vicinity of the part where the pivot lever 3 unlocks the trunk locking mechanism to the part to be unlocked, it receives the elastic force of the spring 4B as the assisting force for unlocking (rotational force in the unlocking direction). It will be. Thereby, the switching of unlocking in the trunk locking mechanism is performed with a small rotational operation force.

  Here, the effect of unlocking the trunk locking mechanism in the unlocking device 1 shown in the present embodiment will be considered with reference to FIG.

  FIG. 8 is a graph showing the results of considering the effect of unlocking the trunk locking mechanism in the unlocking device according to the first embodiment of the present invention.

(1) The graph shown by the one-dot chain line in FIG. 8 shows the relationship between the operating resistance acting on the turning lever in the conventional unlocking device and the turning angle. In this graph, when the match key is inserted into the key insertion / extraction hole and rotated, the operation resistance R1 acts on the rotation lever by the elastic force of the key rotor return spring at the operation start position, and the trunk locking mechanism. The operation resistance R2 (R2> R1) acts on the part where is unlocked.

(2) The graph shown by the two-dot chain line in FIG. 8 shows the relationship between the operation resistance / assist force acting on the rotation lever 3 by the moderation mechanism 4 in the unlocking device 1 shown in the present embodiment and the rotation angle. Show. In this graph, when the match key K is inserted into the key insertion / extraction hole 20B and rotated, the operation resistance R3 (R1 <R3) is generated by the elastic force of the spring 4B of the moderation mechanism 4 and the spring for returning the key rotor at the operation start position. <R2) acts on the rotating lever 3, while an assist force (A + R1) acts on the part where the trunk locking mechanism is unlocked by the elastic force of the spring 4B of the moderation mechanism 4.

(3) The graph shown by the solid line in FIG. 8 is obtained by combining the graphs shown in (1) and (2), and actually acts on the rotating lever 3 in the unlocking device 1 shown in the present embodiment. The relationship between operation resistance and its rotation angle is shown. In this graph, when the match key K is inserted into the key insertion / removal hole 20B and rotated, the operation resistance R4 = R1 + R3 (R4) is generated by the elastic force of the spring 4B of the moderation mechanism 4 and the spring for returning the key rotor at the operation start position. <R2) acts on the rotating lever 3, while at the portion where the trunk locking mechanism is unlocked, the operation resistance R5 (R5) is obtained by subtracting the assist force (A + R1) in (2) from the operation resistance R2 in (1). = R2-A-R1) acts.

  Thus, in the present embodiment, the unlocking in the trunk locking mechanism is switched by the amount of the assist force (A + R1) by the moderation mechanism 4 acting on the rotating lever 3 at the site where the trunk locking mechanism is unlocked. It was confirmed that the operation was performed with a small rotational operation force.

  In the present embodiment, the operation resistance R4 (R4 = R1 + R3) larger than the operation resistance R1 acts on the rotating lever 3 at the operation start position of the match key K, and the match key K is inserted into the key insertion / removal hole 20B. It was confirmed that the operational feeling at the start of the turning operation can be obtained more effectively.

[Effect of the first embodiment]
According to the first embodiment described above, the following effects can be obtained.

  Unlocking in the trunk locking mechanism can be performed with a small rotational operation force, and the operation load during unlocking can be reduced.

[Second Embodiment]
FIG. 9 is a cross-sectional view for explaining a locking / unlocking device according to a second embodiment of the present invention. 9, the same or equivalent members as those in FIG. 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 9, the present embodiment is characterized in that it is a locking / unlocking device 91 that locks / unlocks the door lock mechanism.

  For this reason, the rotation lever 3 has a function of locking and unlocking a door lock mechanism (not shown), and the rod 500 is attached to the key rotor 2B at one end and the door lock mechanism at the other end. Are connected to each other.

  The moderation mechanism 4 includes a piece positioning recess 220A in which the moderation portion 22A can position the moderation piece 4A in the circumferential direction of the rotor case 2A, piece sliding surfaces 221A, 221A connected to the inner surface of the piece positioning recess 220A, and The piece guide surfaces 222A and 222A are connected to the inner surface of the piece positioning concave hole 223A via the piece sliding surfaces 221A and 221A, and are arranged between the rotor case 2A and the rotating lever 3.

  In the locking / unlocking device 91 shown in the present embodiment, in order to switch the door lock mechanism from the locked state to the unlocked state, the trunk locking mechanism of the unlocking device 1 shown in the first embodiment is changed from the locked state. This is performed in the same manner as when switching to the unlocked state. Further, switching the door lock mechanism from the unlocked state to the locked state is substantially the same as switching the door lock mechanism from the locked state to the unlocked state (by inserting the match key K into the key insertion / removal hole 20B, (The difference is that it is rotated in the locking direction). For this reason, the description of the locking / unlocking operation of the door lock mechanism is omitted.

[Effect of the second embodiment]
According to the second embodiment described above, the following effects can be obtained.

  Locking / unlocking in the door lock mechanism can be performed with a small rotational operation force, and the operation load during locking / unlocking can be reduced.

  As mentioned above, although the locking / unlocking device of the present invention has been described based on the above-described embodiment, the present invention is not limited to the above-described embodiment, and in various aspects without departing from the gist thereof. For example, the following modifications are possible.

(1) In each embodiment, the case where the key plug is the key rotor 2B rotated by the insertion rotation operation of the match key K has been described. However, the present invention is not limited to this, and the match key insertion movement operation is performed. A sliding slider may be used. In this case, a card type key is used as a match key, and a rotating lever for locking / unlocking the lock mechanism is connected to the slider. The rotation lever is configured to rotate in conjunction with the rotation of the slider and transmit the locking / unlocking force to the lock mechanism.

(2) In each embodiment, when unlocking the locking mechanism in the automobile trunk (first embodiment), or when locking and unlocking the door locking mechanism in the automobile door panel (second embodiment) Although the present invention is not limited to this, the present invention is not limited to this. When locking or unlocking a lock mechanism other than an automobile lock mechanism, or when locking and unlocking a lock mechanism, that is, a lock mechanism. The present invention can be applied to the case of locking / unlocking in the same manner as in the present embodiment.

The perspective view which shows the vehicle incorporating the unlocking apparatus which concerns on the 1st Embodiment of this invention. The rear view shown in order to demonstrate the unlocking apparatus which concerns on the 1st Embodiment of this invention. AA sectional drawing of FIG. BB sectional drawing of FIG. CC sectional drawing of FIG. Sectional drawing which shows the insertion state of the match key with respect to the cylinder lock of the unlocking apparatus which concerns on the 1st Embodiment of this invention. (a) And (b) is sectional drawing shown in order to demonstrate the switching operation | movement of the unlocking apparatus based on the 1st Embodiment of this invention. The graph which shows the result of having considered the effect at the time of unlocking operation of the trunk locking mechanism in the unlocking apparatus which concerns on the 1st Embodiment of this invention. Sectional drawing shown in order to demonstrate the locking and unlocking apparatus which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Unlocking device 2 ... Cylinder lock 2A ... Rotor case, 20A ... Internal space, 21A ... Tumbler fitting hole, 22A ... Moderation part, 220A ... Piece positioning concave hole, 221A ... Piece sliding surface, 222A ... Piece guide surface 223A ... concave portion 2B ... key rotor, 20B ... key insertion / extraction hole, 21B ... tumbler arrangement hole, 22B ... tumbler, 220B ... key fitting groove 3 ... rotating lever, 30 ... lever main body part, 300 ... rotor connecting part, 301 ... Piece accommodation hole, 31 ... wire connecting part,
4 ... Moderation mechanism,
4A ... Moderation piece, 40A ... Curved portion, 41A ... Base 4B ... Spring 91 ... Locking / unlocking device 100 ... Bracket 200 ... Retaining ring 400 ... Wire 500 ... Rod A ... Automobile, a ... Trunk K ... Match key, k ... Convex

Claims (3)

A key plug operable by a match key, and a cylinder lock having a plug case capable of accommodating the key plug therein;
A rotating member that is rotated by a key plug operation of the cylinder lock and unlocks the locking mechanism of the opening and closing member;
A moderation portion provided in the plug case, a moderation piece interposed between the moderation portion and the rotating member so as to be able to advance and retreat, and a moderation mechanism having a spring capable of pressing the moderation piece against the moderation portion. ,
The moderation mechanism is characterized in that a piece guide surface for guiding the moderation piece in a direction in which the spring member's elastic force is applied to the rotating member as an unlocking assisting force is provided in the moderation portion. Unlocking device to do.   The unlocking device according to claim 1, wherein the cylinder lock is formed by a key rotor in which the key plug is rotated by an operation of inserting a match key. A key plug operable by a match key, and a cylinder lock having a plug case capable of accommodating the key plug therein;
A rotating member that is rotated by a key plug operation of the cylinder lock and locks the locking mechanism of the opening and closing member;
A moderation portion provided in the plug case, a moderation piece interposed between the moderation portion and the rotating member so as to be able to advance and retreat, and a moderation mechanism having a spring capable of pressing the moderation piece against the moderation portion. ,
The moderation mechanism is characterized in that a piece guide surface for guiding the moderation piece in a direction in which the repulsive force of the spring is applied to the rotating member as an assisting force for locking is provided in the moderation portion. Locking device.

Images