JP2006219942A - Disengaging mechanism of locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make operability better and improve quality and reliability of a locking device. <P>SOLUTION: The disengaging mechanism of the locking device 1 is applied when a lid 4 is rotatably switched to an open or closed state relative to a body 3, and a striker 5 on the lid side is engaged with a main latch on the main body side in a closed state of the lid, and the lid 4 is rotated in the opening direction by predetermined dimensions at the time of disengagement, and further rotation in the opening direction is prevented by an auxiliary latch 6 engaged with the striker 5 or the like, and a disengaging lever 2 is operated from a gap t formed between the body 3 and the lid 4 by the rotation, so that the lid 4 is switched to an opened state by disengagement of the auxiliary latch 6. The disengaging mechanism has an operation unit 7 attached to the disengaging lever 2 and enabling total dimension to be reduced against energizing force in the closed state of the lid and extending the total dimension by the energizing force in accordance with rotation of the lid in the opening direction and enabling easy disengaging operation from the gap between the body 3 and the lid 4 by the extension. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is used when, for example, a rotating lid (also referred to as a hood or a hood) of an automobile is locked, and assists together with a main latch provided on the main body side corresponding to a striker on the lid side. The present invention relates to a disengagement mechanism of a lock device having a latch.

  The lock device of the invention has a structure as exemplified in Patent Documents 1 and 2. FIGS. 6 to 8 show that of Patent Document 1 as an example. First, in FIG. 6, an automobile (vehicle) 10 includes a body frame 11, a driver's seat 12, a lid (bonnet) 13, and a front body 14. The lid 13 (22 is an outer plate, 23 is an inner plate, 24 is a filler), a main body 15 projecting a striker 27 (31 is a main body, 32 is a mounting plate member), and the main body 15 is a front body. 14 is provided with a lock device 16 that is locked via a striker 27, a remote operation opener lever 17 provided on the driver's seat 12 side, and a cable 18 that connects the opener lever 17 and the lock device 16. . 7 is a sectional view taken along line 2-2 of FIG. 6, and FIG. 8 shows the operation of the locking device. In the illustrated locking device 16, a base plate 33 is fixed to the radiator support 21 with bolts 34, catch means 35 is attached to the base plate 33, and the catch means 35 meshes with and engages with the striker 27. That is, the catch means 35 engages with the slide groove (not shown) that is formed on the base plate 33 and can receive the striker 27, the locking lever 43 that is swingably attached to the base plate 33, and the locking lever 43. Latch 44 (corresponding to a main latch in the present invention), a locking groove 61 formed in the latch 44, a locking lever latch 62 and a lift 63, and between the base plate 33 and the latch 44. The tension spring 46 is arranged, and a safety latch (corresponding to an auxiliary latch in the present invention) 45 that engages with the striker 27 when the latch 44 is unlocked. The locking lever 43 is provided with a latching portion 56. The safety latch 45 is formed with a release lever 37 (41 is a finger-hanging piece).

  In the above locking device 16, the striker 27 is locked by the latch 44 in a state where the striker 27 enters the slide groove of the base plate 33 in the closed state of the lid 13. When the opener lever 17 in the passenger compartment is pulled, the locking plate 43 is pulled through the cable 18 in the direction of the arrow indicated by the circled number 2 as shown in FIG. It leaves | separates from the latch part 62. As a result, the latch 44 starts to turn in the direction of the arrow of the round numeral 3 by the urging force of the tension spring 46, and the engagement groove 61 releases the engagement with the striker body 31 as shown in FIG. The striker main body 31 is pushed up by the lift part 63 (lift mechanism), and the stopper 63 of the base plate 33 is stopped. Even if the striker body 31 is unlocked from the latch 44, upward movement is prevented by the safety latch 45. In this structure, the lid 13 is raised to the position indicated by the two-dot chain line in FIG. 7, and a gap is formed between the vehicle body panel side and a finger. Next, the release lever 37 (finger holding piece 41) is operated with a finger inserted from the gap. When the release lever 37 is pushed in the horizontal direction against the urging force by a finger operation, the safety latch 45 is rotated in a direction away from the striker main body 31 to be in the disengaged state. For this reason, the lid 13 can be rotated to the fully opened state.

Japanese Patent Laid-Open No. 2004-1000026 JP-A-5-171849

  In the conventional locking device 16 described above, when switching to the lid open state, a finger is inserted into the gap formed between the lid 13 and the vehicle body panel side from the state where the lid 13 is raised to the position indicated by the two-dot chain line in FIG. Then, after confirming the release lever 37 by groping, the release lever 37 must be pushed and operated, which may cause not only poor operability but also dirty hands. This is because the release lever 37 is arranged slightly inward from the peripheral edge of the panel that partitions the storage portion so that it does not interfere with the lid 13 side. It is because it cannot visually check from the formed gap. Therefore, an object of the present invention is to solve the above problems and improve operability, thereby improving usability and reliability.

  In order to achieve the above object, the present invention is applied when the lid is pivotally switched between the open state and the closed state with respect to the main body, and the lid side striker is locked by the main body side main latch in the lid closed state. When the lock is released, the lid is rotated in the opening direction by a predetermined dimension, and further rotation in the opening direction is prevented by an auxiliary latch engaged with the striker or the like. An engagement release mechanism of a lock device that releases the engagement of the auxiliary latch by operating a release lever from a gap formed between the main body and the lid, and enables the lid to be switched to an open state. Attached to the release lever, and contracted against the urging force in the lid closed state, and the urging force is interlocked with the rotation of the lid in the opening direction by the urging force. Automatically extend the dimensions It is characterized in that it comprises an operation unit to facilitate the release operation of the gap between the body and the lid by the length.

  The above operation unit is attached to the release lever, and the operation part of the release lever is effective to automatically extend the entire size by the biasing force in conjunction with the lid rotating in the opening direction by a predetermined dimension. Long, so that the finger can be pushed well. Here, the auxiliary latch of the present invention may be referred to as a safety latch or a safety hook, for example, and is configured to engage with a striker as in Patent Document 1, or a striker provided on the lid side as in Patent Document 2. Any configuration that engages with a fixed portion (such as a locking plate) other than the above may be used. Moreover, as an application example, a main body is a storage part of an automobile, and a lid is a bonnet or a hood that opens and closes the storage part. However, the usage may be other than that.

The present invention as described above is more preferably embodied as follows.
First, the operation unit urges the movable body in a direction protruding from the holding body, a holding body provided on the release lever, a movable body slidably incorporated in the holding body, and the movable body. And the movable body is resisted against the biasing force of the spring member in the process of switching from the lid open state to the closed state via a cam provided on the lid side. It is the structure slid in the direction which reduces the protrusion amount from a holding body (Claim 2). Second, the movable body is disposed so as to be capable of appearing and retracting in the holding body, and has a pin provided in a direction intersecting the sliding direction, and the pin is provided in the holding body in a guide groove. It is the structure fitted so that sliding is possible (Claim 3).
Thirdly, the cam is configured to slide against the urging force of the spring member by pressing against the pin or a rotating member rotatably supported by the pin. ).

The disengagement mechanism of the lock device according to the present invention can have the following advantages.
In the invention of claim 1, for example, when applied to a locking device that disengages and disengages an automobile lid (bonnet or hood) described in Patent Documents 1 and 2, the main latch is unlocked, and the lid has a predetermined dimension. In conjunction with the rotation in the opening direction, the operating unit automatically extends all dimensions by the biasing force, so the operation part of the release lever is effectively lengthened, and the pushing operation with the finger can be performed well. Thereby, the operability when the lid is fully opened can be greatly improved, and the usability and reliability of the application device and the lid can be improved.
In the invention of claim 2, since the operation unit is constituted by the holding body, the movable body and the spring member, and since the movable body is slid through the cam provided on the lid side, It is easy to apply to the release lever and can be implemented relatively inexpensively.
In the invention of claim 3, for example, the sliding distance of the movable body is regulated by the length of the guide groove of the holding body, the stable sliding of the movable body is maintained by the guide action of the guide groove and the pin, The configuration of claim 4 is easily adopted.
In the invention of claim 4, the movable body can be slid satisfactorily, thereby enabling stable operation characteristics of the movable body.

  The best mode of the present invention will be described with reference to the drawings. 1 and 2 show the operation of the operation unit which is a main part of the invention, FIG. 3 is an exploded view of the operation unit, and FIG. 4 shows an assembled state of the operation unit. In the following description, after describing the overall structure and the main part, the operation and modifications will be referred to.

(Overall structure) Since the lock device 1 of the invention is the same as that of Patent Documents 1 and 2, in FIG. 1 and FIG. 2, it is shown as a block except for the release lever 2. Good. That is, the locking device 1 is used when the lid 4 is pivotally switched between the open state and the closed state with respect to the corresponding portion of the vehicle body panel 3, and the vehicle body corresponding to the substantially U-shaped striker 5 provided on the lid 4 side. Installed in the corresponding part on the panel 3 side. When the striker 5 on the lid 4 side is locked by the main latch in the lid closed state shown by the solid line in FIG. 1, and the lock is released by pulling the opener lever in the vehicle interior described in the prior art, the main latch The lid 4 is rotated in the opening direction by a predetermined dimension by the lift mechanism. This rotation prevents movement of the lid 4 in the opening direction by the auxiliary latch 6 engaged with the striker 5 or the like. The auxiliary latch 6 is integrated with the release lever 2 in the same manner as the safety latch of Patent Document 1 and the safety hook of Patent Document 2. The engagement of the auxiliary latch 6 is released by operating the release lever 2 from a gap t formed between the vehicle body panel 3 and the lid 4 by the rotation of the lid 4 as shown in FIG. With this disengagement, the lid 4 can be switched to the open state. In other words, the disengagement mechanism of the locking device 1 according to the present invention is a mechanism for releasing the engagement of the auxiliary latch 6 via the disengagement lever 2, and the following structure is different from the conventional structure. That is, in this disengagement mechanism, it is attached to the release lever 2 and contracts all the dimensions against the biasing force when the lid is closed, and the lid 4 rotates in the opening direction by the predetermined dimension. In conjunction with this, an operating unit 7 is provided that automatically extends all dimensions by the urging force and facilitates the releasing operation from the gap t between the vehicle body panel 3 and the lid 4 by the extension.

  In the drawing, the lid 4 and the vehicle body panel 3 are schematically shown. Usually, the lid 4 is shaped by an outer plate, an inner plate, or the like, and a striker 5 is projected from an inner surface on the free end side via an attachment member 8 or the like. The vehicle body panel 3 defines, for example, an engine room provided on the front side of the automobile, and is configured so as not to interfere with the lid 4 side in a state where the lock device 1 is fixed to the aggregate in the engine room. It protrudes upward from the uppermost edge of the forefront of the wall. These are the same as before.

(Main part structure) The operation unit 7 includes a holding body 10 attached to the end 2a of the release lever 2 by a stopper 9, a movable body 15 slidably incorporated in the holding body 10, and a movable body. And at least a spring member 19 that urges 15 in a direction protruding from the holding body 10. Then, in a process in which the movable body 15 is switched from the lid open state to the closed state via the cam 21 attached to the lid 4 side, the sliding is performed in a direction to reduce the protruding amount from the holding body 10 against the urging force of the spring member 19. It is a configuration that is moved. Details are as follows.

  The holding body 10 has a substantially case shape, and is divided into a front chamber 10a and a rear chamber 10b by a wall 11 (see FIG. 2) provided inside and approximately in the middle. The front chamber 10a has an opening at the front end, a guide convex portion 12 provided facing both inner surfaces, a guide groove 13 provided so as to penetrate both side walls, and a projection protruding from the wall 11 to the front side. And a support shaft 11a (see FIG. 2). The guide protrusion 12 is positioned below the front chamber 10a and extends in the front-rear direction. The guide groove 13 is located above the front chamber 10a and extends in the front-rear direction. The support shaft 11a supports a coil-shaped spring member 19 as shown in FIG. In addition, the guide convex part 12 and the guide groove 13 are substantially parallel. The rear chamber 10b is a hole opened downward from the upper surface, and has a plurality of mounting holes 14 provided so as to penetrate both side walls. Then, the end 2a of the release lever 2 is inserted into the rear chamber 10b from above. The end 2a is provided with a through hole 2b corresponding to each mounting hole 14. The holding body 10 is fixed to the release lever 2 by the stopper 9 inserted through the mounting hole 14 and the through hole 2b after the end 2a is inserted into the rear chamber 10b from above.

  The movable body 15 has a shape that can be substantially projected and retracted in the front chamber 10a of the holding body 10, and is provided on both sides of the front and rear grooves 16 that engage with the corresponding guide protrusions 12, and provided on the rear upper side. It has a mounting hole 17 penetrating both sides and a recess 15a (see FIG. 2) provided from the rear end surface toward the front side. The movable body 15 is disposed in a state where the guide convex portion 12 and the front and rear grooves 16 are fitted to the front chamber 10a, and then the pin 18 is provided with one guide groove 13, the mounting hole 17, and the other guide groove 13. It is possible to move back and forth along the guide groove 13 by being inserted into the guide groove 13. In this case, the spring member 19 is incorporated between the wall 11 and the movable body 15 with the rear portion supported by the support shaft 11a and the front portion being stored in the recess 15a. For this reason, in the assembled state, the movable body 15 is slid forward by the biasing force of the spring member 19, and the pin 18 protrudes from the front chamber 10 a until it is regulated by the front end of the guide groove 13. The pin 18 is fixed to the mounting hole 17 by press-fitting, and has a rotating member 20 such as a roller pivotally supported by a portion protruding outward from one guide groove 13.

  On the other hand, the cam 21 has a mounting portion 23 that protrudes from the side surface while the rear end surface 22 is set as an operation surface that contacts the rotating member 20. The cam 21 is attached to the corresponding portion of the lid 4 via a bracket 24 or the like. In this case, for example, the lower end side of the bracket 24 is fixed to the attachment portion 23 via the stopper 25 and the upper end side of the bracket 24 is fixed to the corresponding portion of the lid 4 by welding or the like. However, this mounting structure is arbitrarily designed.

(Main part operation) The operation of the operation unit 7 will be described. The solid line in FIG. 1 is engaged by a main latch (not shown) that constitutes the lock device 1, and the lid 4 is rotated in the direction of opening and closing of the one-dot chain line to completely cover the engine room of the vehicle body panel 3. The closed lid closed state is shown. In the process in which the lid 4 is switched from the open state to the closed state, the operation unit 7 presses the rotary member 20 backward with the operating surface of the rear end surface 22 after the cam 21 hits the rotary member 20 of the pin 18. Thus, the pin 18 is slid into the holding body 10 along the guide groove 13 together with the movable body 15 against the urging force of the spring member 19, so that the entire dimension becomes the minimum dimension. FIG. 2 shows a state in which the lock of the main latch is released by pulling the opener lever in the passenger compartment in order to switch the lid 4 to the open state. At this stage, when the main latch of the locking device 1 is released from the striker 5, the lid 4 is pushed up by a predetermined dimension via the striker 5 by a lift mechanism (not shown), and further upward movement is performed by the striker 5 or the like. (See paragraph 0003 for details). For this reason, in this structure, the lid 4 is pushed up to the position shown in FIG. 2, and a gap t is formed so that a finger can enter between the lid 4 and the vehicle body panel side. In the process of forming the gap t, the operation unit 7 is operated by the shape of the operating surface of the cam rear end surface 22 and the urging force of the spring member 19 in conjunction with the cam 21 being lifted by pushing up the lid 4. The movable body 15 is slid forward (to the left in FIG. 2) of the guide groove 13 via the pin 18 and the rotating member 20. As a result, the movable body 15 protrudes greatly to the front of the holding body 10, so that it can be easily operated by inserting a finger from the gap t.

(Modification) FIG. 5 shows an example in which the operation unit is changed in correspondence with FIG. In this description, the same reference numerals are given to the same members and parts that are functionally the same as in FIGS. In this example, the cam and pin described above are changed. In other words, in this structure, the cam body 26 is provided with two cams 21 provided parallel to the mounting plate 24, and the holding body 10 is set between the cam 21 and the cam 21. . On the other hand, both ends 18a and 18a of the pin 18 protrude from the corresponding guide grooves 13, and the cams 21 can come into contact with the corresponding ends 18a and 18a, respectively. For this reason, in this structure, the pin 18 on the movable body side is pressed from both sides by the cams 21 of the cam body 25, so that the load on the pin 18 is dispersed to prevent the deformation of the pin and the sliding of the movable body 15 is stabilized. it can. As described above, the present invention can be variously modified within a range that satisfies the requirements of claim 1.

It is a schematic cross section which shows the reduction operation | movement of the operation unit of invention principal part. It is a schematic cross section which shows the protrusion action | operation of the said operation unit. It is the schematic block diagram which decomposed | disassembled the said operation unit. It is a figure which shows the relationship between the said operation unit and a cam. It is a figure which shows the modification of the said operation unit and a cam corresponding to FIG. FIG. 10 is a layout diagram illustrating a configuration of Patent Document 1 as an example of use of a target lock device. It is a figure which shows the locking device of FIG. 6 in the 2-2 line cross section of FIG. It is an action | operation figure of the locking device shown in the 4-4 line cross section of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Locking device 2 ... Release lever (2a is an end, 2b is a mounting hole)
3. Body panel (equivalent to the main body of the invention)
DESCRIPTION OF SYMBOLS 4 ... Lid 5 ... Striker 6 ... Auxiliary latch 7 ... Operation unit 10 ... Holding body (10a and 10b are front and rear chambers, 12 is a convex part, 13 is a guide groove)
15 ... Movable body (16 is front and rear groove, 17 is mounting hole)
DESCRIPTION OF SYMBOLS 18 ... Pin 19 ... Spring member 20 ... Rotating member 21 ... Cam 26 ... Cam body

Claims (4)

This is applied when the lid is pivotally switched between the open state and the closed state with respect to the main body. When the lid is closed, the lid-side striker is locked by the main latch on the main body side, and the lock is released when the lock is released. The lid is rotated in the opening direction by a predetermined dimension, and further rotation in the opening direction is prevented by an auxiliary latch that engages with the striker or the like, and is formed between the main body and the lid by the rotation. An engagement release mechanism of the lock device that allows the lid to be switched to an open state by releasing the engagement of the auxiliary latch by operating a release lever from a gap that is formed;
It is attached to the release lever and contracts against the biasing force in the full size when the lid is closed, and the full size is adjusted by the biasing force in conjunction with the lid rotating in the opening direction by the predetermined dimension. An engagement release mechanism for a lock device, comprising an operation unit that automatically extends and facilitates a release operation from a gap between the main body and the lid by the extension.   The operation unit includes a holding body provided on the release lever, a movable body slidably incorporated in the holding body, and a spring member that urges the movable body in a direction protruding from the holding body. And the movable body from the holding body against the urging force of the spring member in the process of switching from the lid open state to the closed state via a cam provided on the lid side. The engagement disengagement mechanism of the lock device according to claim 1, wherein the disengagement mechanism is slid in a direction to reduce the protruding amount.   The movable body is disposed so as to be able to appear and retract in the holding body, and has a pin provided in a direction intersecting a sliding direction, and the pin is provided in the holding body and is slidable in a guide groove. The engagement release mechanism of the locking device according to claim 2, wherein the engagement is released. The engagement of the lock device according to claim 3, wherein the cam slides against the urging force of the spring member by pressing against the pin or a rotating member rotatably supported by the pin. Release mechanism.

Images