JP4517914B2 - Vehicle door lock device - Google Patents

Description

  The present invention relates to a vehicle door lock device.

Known door lock devices are described in Patent Document 1 and Patent Document 2 described later. These door lock devices include a link member that rotates between a locked position and an unlocked position to lock and unlock a vehicle door, a motor that generates a driving force for rotating the link member, A housing for housing the link member and the motor is provided. The casing is provided with a terminal connected to the motor.
JP-A-10-196182 Japanese Utility Model Publication No. 7-32147

  In the door lock device described in Patent Literature 1, terminals connected to each other via a connecting portion are previously resin-molded (insert-molded) together with a housing. And the circuit which concerns on a motor is formed because a terminal is parted by the shear of a connection part. In this structure, the position of the terminal after molding may deviate from the normal position with respect to the housing due to the injection pressure of the resin at the time of insert molding.

  In the door lock device described in Patent Document 2, a plurality of independent terminals are respectively assembled to the housing. In this structure, the rigidity of the terminal itself tends to be low, so depending on the handling during assembly, partial deformation occurs in the assembled terminal, and the position of the connection part of the terminal with the motor is normal with respect to the housing. May be out of position.

  As described above, in the known door lock device, the positional accuracy of the terminal (conductive member) in the housing may be insufficient.

  Therefore, the present invention has been made in view of the above-described problems, and an object thereof is to ensure the positional accuracy of the conductive member in the housing.

  In order to solve the above-mentioned problem, the technical means taken in the present invention is, as described in claim 1, a housing, an electrical component accommodated in the housing, and an electrical component electrically connected to the electrical component. A conductive member provided with a connecting portion, and the conductive members connected to each other via the connecting portion are divided by shearing of the connecting portion to form a circuit relating to the electrical component. In the vehicle door lock device, an opposing support portion provided on the casing and connected to each other via the connecting portion when the conductive member is assembled to the casing, and the opposing support portion A space that is provided between the support portions and allows deformation of the connection portion due to the shear; and the connection portion that is provided in the housing and is laid on the opposing support portion is sheared. Supporting the movement with respect to the housing A regulating portion for regulating with respect to the opposing direction is that where the structure comprises a.

  Preferably, as described in claim 2, the connection portion includes one side provided with a notch and facing the space, and the other side into which a load is input to shear the notch. And good.

  According to the first aspect of the present invention, when the conductive members are assembled to the casing, the conductive members are connected to each other via the connecting portion, and therefore the conductive members are assembled to the casing one by one. Compared to the above, the conductive member is less likely to be deformed. Thereby, the conductive member is assembled at a regular position in the housing. Furthermore, when the connection part constructed in the opposing support part is sheared, the movement of the conductive member relative to the housing is restricted by the restriction part. In this structure, the divided conductive member is held in its original position before the connecting portion is sheared. Thereby, the positional accuracy of the conductive member in the housing is ensured.

  According to the second aspect of the present invention, since the stress related to shearing is concentrated on the notch provided on one side of the connecting part, the load required to shear the connecting part is reduced. Thereby, the load which acts on a housing | casing via an opposing support part at the time of the shearing of a connection part is reduced, and a housing | casing is protected.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is an exploded perspective view of a door lock device 1 according to the present invention, and FIG. 2 is a front view of the door lock device 1 (viewed in the direction of arrow II in FIG. 1). 3 and 4 are diagrams showing the structure of the main part of the door lock device 1. FIG.

  The door lock device 1 is disposed inside a door (not shown) of a vehicle and is closed (door) by engagement with a striker (not shown) fixed to a vehicle body (not shown). Latch mechanism 2 that holds the door in a closed state, a link mechanism 3 that operates the latch mechanism 2 to open the door in the closed state, and a housing 5 that houses the latch mechanism 2 and the link mechanism 3. And.

  The housing 5 (housing) is formed by a resin main case 51, a first cover 52, and a second cover 53. The main case 51 is integrally provided with a first case portion 51a and a second case portion 51b extending substantially at right angles to the first case portion 51a. The first cover 52 is fixed to the main case 51 so as to overlap with the first case portion 51a, and the first housing space A is defined by the first cover 52 and the first case portion 51a. The second cover 53 is attached to the main case 51 so as to overlap with the second case portion 51b, and the second housing space B is defined by the second cover 53 and the second case portion 51b. The second cover 53 is provided with a resin body 53a having a box shape, a metal base plate 53b, and a metal sub-base plate 53c. The base plate 53b is attached to the body 53a, and the third housing space C is defined by the body 53a and the base plate 53b. The body 53a is fixed to the main case 51 via the sub base plate 53c.

  The latch mechanism 2 is housed in the third housing space C of the housing 5. The latch mechanism 2 includes a latch 22 rotatably supported by a latch shaft 21 fixed to the base plate 53b, and is rotatably supported by the base plate 53b via a shaft portion 23 and extends in parallel with the latch shaft 21. And a pole 24. The shaft portion 23 of the pole 24 extends through the body 53a and the sub base plate 53c into the second accommodation space B. The latch 22 is formed with a fitting groove 22a into which a striker fixed to the vehicle body is inserted, and a pawl portion 22b that is detachable from the pole 24. The latch 22 is always urged by a spring 25 so as to rotate in one direction (the urging direction of the latch 22). The pole 24 is always urged by a spring 26 so as to rotate in a direction opposite to the urging direction of the latch 22 (one direction of the pole 24).

  When the door is held in the closed state, the fitting groove 22a of the latch 22 is fitted into the striker and the pawl 24 is engaged with the claw portion 22b of the latch 22, so that the latch 22 is biased by the urging force of the spring 25. Rotation in one direction is restricted (latched state). In this state, when the pole 24 is rotated in the other direction against the biasing force of the spring 26, the pole 24 is detached from the claw portion 22b of the latch 22, and the latch 22 is rotated in one direction by the biasing force of the spring 25. To do. Thereby, the fitting groove 22a of the latch 22 can be detached from the striker (unlatched state). In this state, the door can be opened.

  The link mechanism 3 mainly includes a lift lever 31, an outside open lever 32, an open link 33, an inside open lever 34, and a locking lever 36.

  The lift lever 31 and the outside open lever 32 are accommodated in the second accommodation space B of the housing 5. The lift lever 31 is fixed to the shaft portion 23 of the pole 24 located in the second accommodation space B, and rotates together with the pole 24. That is, the latch mechanism 2 is switched from the latched state to the unlatched state by the rotation operation of the lift lever 31. A flange wall 31 a is formed on the lift lever 31. The outside open lever 32 is rotatably supported by a pin 32a fixed to the sub base plate 53c. The outside open lever 32 is linked to an outside handle (not shown) provided outside the passenger compartment of the door by a pin 32b erected at one end thereof. A spring 32 c is locked to the outside open lever 32. The outside open lever 32 is held at the initial position shown in FIG. 2 by the urging force of the spring 32c.

  The open link 33 and the inside open lever 34 are accommodated in the first accommodation space A of the housing 5. The open link 33 is arranged so as to be orthogonal to the outside open lever 32, and swings between the unlock position shown in FIG. 3 and the lock position shown in FIG. 4 at the other end of the outside open lever 32. It is supported freely. The open link 33 is provided with a long hole 33a and a flange wall 33b. The flange wall 33b can come into contact with the flange wall 31a of the lift lever 31 and has an L shape. The inside open lever 34 is rotatably supported by the shaft 6 supported by the main case 51 and the first cover 52 of the housing 5. The inside open lever 34 is formed with an arm portion 34 a that can come into contact with the flange wall 33 b of the open link 33. The inside open lever 34 is linked to an inside handle (not shown) provided on the vehicle interior side of the door.

  In the closed state of the door, when the open link 33 is located at the unlock position, the movement of the outside open lever 32 and the open link 33 by the operation of the outside handle is transmitted to the lift lever 31. Thereby, the lift lever 31 rotates and the latch mechanism 2 is switched from the latched state to the unlatched state. Similarly, the movements of the inside open lever 34 and the open link 33 due to the operation of the inside handle are also transmitted to the lift lever 31.

  When the open link 33 is in the locked position in the closed state of the door, the movement of the outside open lever 32 and the open link 33 due to the operation of the outside handle is not transmitted to the lift lever 31. For this reason, the lift lever 31 does not rotate, and the latch mechanism 2 cannot be switched to the unlatched state. Similarly, the movement of the inside open lever 34 and the open link 33 due to the operation of the inside handle is not transmitted to the lift lever 31.

  The locking lever 36 is housed in the first housing space A of the housing 5. The locking lever 36 is rotatably supported between the unlock position shown in FIG. 3 and the lock position shown in FIG. 4 by the shaft 6 supported by the main case 51 and the first cover 52 of the housing 5. . The locking lever 36 is provided with a bush 36e and an engaging recess 36c. The bush 36 e is inserted through the long hole 33 a of the open link 33. Thereby, the locking lever 36 is linked to the open link 33. The engaging recess 36 c is linked to the drive mechanism 8 provided in the first accommodation space A of the housing 5.

  The drive mechanism 8 is a known mechanism formed by a motor 81 (electrical component), a worm gear 82 fixed to the output shaft 81 a of the motor 81, and a wheel gear 83 that meshes with the worm gear 82. The drive mechanism 8 is for rotating the locking lever 36 between the unlock position and the lock position.

  A terminal 9 (conductive member) is connected to the motor 81. The terminal 9 is assembled to the first case portion 51 a of the main case 51 in the housing 5 and led out of the housing 5 through the connector 11. An external power supply means (not shown) is connected to the connector 11, and power is supplied to the motor 81 via the terminal 9. The assembly of the terminal 9 to the housing 5 will be described later.

  The wheel gear 83 is rotatably supported by the main case 51 of the housing 5. The wheel gear 83 is formed with a pair of engaging protrusions 83a. The engagement protrusion 83 a engages with the engagement recess 36 c of the locking lever 36 as the wheel gear 83 rotates.

  When the output shaft 81a rotates in one direction by driving the motor 81 with the open link 33 in the unlocked position (shown in FIG. 3), the wheel gear 83 rotates in the clockwise direction in FIG. When the wheel gear 83 rotates, one of the engagement protrusions 83 a engages with the engagement recess 36 c of the locking lever 36. As the wheel gear 83 rotates, the locking lever 36 rotates in the locking direction (counterclockwise in FIG. 3) and reaches the locking position (shown in FIG. 4). At this time, the open link 33 linked to the locking lever 36 via the bush 36e is switched to the locked position (shown in FIG. 4).

  On the other hand, when the output shaft 81a rotates in the other direction by driving the motor 81 with the open link 33 in the locked position (shown in FIG. 4), the wheel gear 83 rotates counterclockwise as shown in FIG. To do. When the wheel gear 83 rotates, the other of the engagement protrusions 83 a engages with the engagement recess 36 c of the locking lever 36. Then, the locking lever 36 rotates in the unlocking direction (clockwise in FIG. 4) with the rotation of the wheel gear 83 and reaches the unlocking position (shown in FIG. 3). At this time, the open link 33 linked to the locking lever 36 is switched to the unlock position (shown in FIG. 3).

  The position of the locking lever 36 is detected by a micro switch 7 (electrical component) provided in the first accommodation space A of the housing 5. The micro switch 7 is a switch for detecting whether the locking lever 36 is in the lock position or the unlock position. A terminal 10 (conductive member) is connected to the microswitch 7. Similarly to the terminal 9 described above, the terminal 10 is assembled to the first case portion 51 a of the main case 51 of the housing 5 and led out of the housing 5 through the connector 11.

  Next, a mode in which the terminals 9 and 10 are assembled to the housing 5 will be described with reference to FIGS.

  FIG. 5 is a view showing the structure of the terminals 9 and 10 assembled to the main case 51 of the housing 5. The terminals 9 and 10 are provided with connecting portions 9a and 10a, respectively. In FIG. 5, the terminals 9 are connected to each other via a connecting portion 9a, and the terminals 10 are connected to each other via a connecting portion 10a. The main case 51 is assembled with the terminal 9 connected to each other via the connecting portion 9a and the terminal 10 connected to each other via the connecting portion 10a.

  6A and 6B are cross-sectional views taken along line AA in FIG. The terminal 9 is supported by support portions 511 and 512 (opposite support portions) provided in the main case 51. As shown in FIG. 6A, the support portions 511 and 512 are formed so as to protrude from the bottom surface 513 of the main case 51 and face each other. The connecting portion 9 a of the terminal 9 is installed between the support portion 511 and the support portion 512. A space 514 is provided between the support portion 511 and the support portion 512. A pair of notches 9c are provided on one side 9d facing the space 514 of the connecting portion 9a laid between the support portions 511 and 512. The notch 9c is V-shaped with respect to the thickness direction of the connecting portion 9a (the vertical direction in FIG. 6).

  In FIG. 6A, when a predetermined load is input to the other side 9b of the connecting portion 9a by a cutting punch or the like to shear any of the notches 9c, as shown in FIG. 6B. The connecting portion 9a is sheared. As a result, the terminals 9 connected to each other through the connecting portion 9a are divided, and a circuit related to the motor 81 is formed. In this structure, even when the site where the load related to shearing is input is slightly deviated from the normal position, the stress related to shearing is concentrated on the apex of the V-shaped notch 9c. Thereby, the connection part 9a is always sheared by the notch part 9c. In addition, about connection part 9a (refer FIG. 5, 2 places) other than the connection part 9a shown to FIG. 6 (a), (b), and connection part 10a (refer FIG. 5, 2 places) are also the same aspect. Sheared.

  7 is an enlarged view of a portion B shown in FIG. 5, and FIG. 8 is a cross-sectional view taken along the line CC in FIG. The main case 51 of the housing 5 is provided with a convex portion 515 (regulation portion). The convex portion 515 is formed so as to protrude from the bottom surface 513 and engages with a terminal 9 (hereinafter referred to as a shear side terminal) close to the notched portion 9c to be sheared. When the connecting portion 9a is sheared, a force acts on the peripheral portion of the shear side terminal 9 around the notch portion 9c in the direction indicated by the arrow F in FIG. 8 (the direction facing the support portion 511). This force can move the portion of the shear side terminal 9 in the same direction, but the above-described convex portion 515 restricts the movement of the shear side terminal 9 in the same direction with respect to the main case 51. Thereby, even after the connection part 9a is sheared, the terminal 9 is held in the initial position before the connection part 9a is sheared.

  As described above, according to the door lock device 1 of the present invention, when the terminal 9 is assembled to the housing 5, the terminal 9 is connected to each other via the connecting portion 9a. As compared with the case where the terminals 9 are assembled one by one, the terminal 9 is less likely to be deformed. As a result, the terminal 9 is assembled at a regular position in the housing 5. Further, when the connecting portion 9 a installed on the support portions 511 and 512 is sheared, the movement of the terminal 9 with respect to the housing 5 is restricted by the convex portion 515. In this structure, the divided terminal 9 is held in its original position before the connecting portion 9a is sheared. Thereby, the positional accuracy of the terminal 9 in the housing 5 is ensured.

  Further, according to the present invention, the stress related to shearing is concentrated on the notch 9c provided on the one side 9d of the connecting part 9a, so that the load required for shearing of the connecting part 9a is reduced. Thereby, the load which acts on the housing 5 via the support parts 511 and 512 at the time of the shearing of the connection part 9a is reduced, and the housing 5 is protected.

1 is an exploded perspective view of a door lock device 1 according to the present invention. The front view of the door lock apparatus 1 (II directional arrow line view in FIG. 1). The figure which shows the structure of the principal part in the door lock apparatus 1. FIG. The figure which shows the structure of the principal part in the door lock apparatus 1. FIG. The figure which shows the structure of the terminals 9 and 10 assembled | attached to the main case 51 of the housing 5. FIG. Sectional drawing in alignment with the AA in FIG. FIG. 6 is an enlarged view of a portion B shown in FIG. 5. Sectional drawing which follows the CC line | wire in FIG.

Explanation of symbols

1 Door lock device (Vehicle door lock device)
5 Housing (housing)
7 Micro switch (Electric parts)
9 Terminal (conductive member)
9a Connecting part 9b Other side 9c Notch part 9d One side 10 Terminal (conductive member)
10a Connecting part 81 Motor (electrical part)
511 Support (opposite support)
512 Supporting part (opposite supporting part)
514 Space 515 Convex part (regulation part)

Claims (2)

A housing,
Electrical components housed in the housing;
A conductive member electrically connected to the electrical component and provided with a coupling portion;
With
In the vehicle door lock device in which the conductive member connected to each other via the connecting portion is divided by shearing of the connecting portion to form a circuit related to the electrical component,
An opposing support portion provided on the housing and provided with the connecting portion when the conductive members connected to each other via the connecting portion are assembled to the housing;
A space provided between the opposing support portions and allowing deformation of the connecting portion due to the shear;
A restricting portion that is provided in the housing and restricts movement of the conductive member with respect to the housing in the facing direction of the facing support portion when the connecting portion laid on the facing support portion is sheared;
A vehicle door lock device comprising:   2. The vehicle according to claim 1, wherein the connecting portion includes one side provided with a notch and facing the space, and another side to which a load is input to shear the notch. Door lock device.

Images