JP2019078104A - Door lock device for vehicle - Google Patents

Abstract

To provide a door lock device for vehicle that can achieve the reduction in manufacturing cost.SOLUTION: A door lock device 1 of the present invention includes a link lever C2C and a lock lever 40. The link lever C2C swings toward a first position 201 due to unlocking operation for a key cylinder H2 while swinging toward a second position 202 due to locking operation for the key cylinder H2. The lock lever 40 reciprocates between an unlocking position and a locking position. The lock lever 40 is provided with a first engagement part 40C and a second engagement part 40D facing each other with a virtual line L interposed therebetween. In the door lock device 1, one of a first O/S lock lever 30 that is connected to the link lever C2C in a first connection position where it is possible to engage with the first engagement part 40C, and a second O/S lock lever 31 that is connected to the link lever C2C in a second connection position where it is possible to engage with the second engagement part 40D, is selected.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a door lock device for a vehicle.

  Patent Document 1 discloses a conventional vehicle door lock device. The vehicle door lock device includes a housing, a latch portion, an operation portion, an external key lever, a lock lever, and an internal key lever.

  The housing is fixed to a door that can be opened and closed with respect to the vehicle body. In addition, the door is provided with a key cylinder. The latch portion is provided in the housing and can be held with the door closed relative to the vehicle body. The operating portion is provided in the housing, and is capable of operating the latch portion. The external key lever is provided outside the housing so as to be pivotable about a pivot axis. The external key lever pivots to the first position by the unlocking operation on the key cylinder, and pivots to the second position by the locking operation on the key cylinder. The lock lever is provided in the housing. The lock lever is reciprocally movable between an unlocking position enabling activation of the actuating part with respect to the latch part and a locking position disabling the actuating part operating with respect to the latch part. The inner key lever is connected to the outer key lever and is provided in the housing so as to be pivotable about a pivot axis.

  In this vehicle door lock device, the external key lever pivots to the first position if an unlocking operation is performed on the key cylinder in a state in which the latch portion holds the door closed to the vehicle body. At this time, the internal key lever pivots integrally with the external key lever to displace the lock lever to the unlocking position. Thus, in the vehicle door lock device, the operation of the actuating portion with respect to the latch portion is validated. As a result, it is possible to open the door through the operating part. Further, in this vehicle door lock device, the external key lever pivots to the second position if a locking operation is performed on the key cylinder in a state in which the latch portion holds the door closed to the vehicle body. . Thereby, the internal key lever displaces the lock lever to the lock position. Thus, in the vehicle door lock device, the operation of the actuating portion with respect to the latch portion is nullified, and the latch portion maintains the door closed.

Patent No. 5205679

  By the way, in this type of vehicle door lock device, the first position and the second position of the external key lever can be reversed depending on the position where the key cylinder is provided on the door and the difference in the operation rotational direction of the key cylinder. Hereinafter, specific description will be given based on the configuration example 1 shown in (A) of FIG. 20, the configuration example 2 shown in (B) of FIG. 20, and the configuration example 3 shown in (C) of FIG.

  In Configuration Examples 1 to 3, the external key lever 90 is provided on the housing 91, and can swing around the swing axis X90. The external key lever 90 is connected to the key cylinder 93 via the rod 92 in Structural Examples 1 and 2 shown in (A) and (B) of FIG. Further, in the configuration example 3 shown in FIG. 20C, the external key lever 90 is connected to the key cylinder 94 via the rod 92.

  The key cylinder 93 in the configuration examples 1 and 2 swings in the D1 direction by the unlocking operation, and swings in the D2 direction by the locking operation (see (A) and (B) in FIG. 20). Here, in the configuration example 1 of FIG. 20A, the key cylinder 93 provided in the door (not shown) is connected to the rod 92 at the front. Thus, in the configuration example 1, the key cylinder 93 swings in the direction D1 by the unlocking operation, whereby the external key lever 90 is pulled up by the rod 92. Therefore, the external key lever 90 pivots in the direction D3 around the pivot axis X90 to the first position. Further, when the key cylinder 93 swings in the direction D2 by the locking operation, the rod 92 pushes the external key lever 90 downward. Therefore, the external key lever 90 swings in the D4 direction around the swing axis X90 to be in the second position.

  On the other hand, in the configuration example 2 shown in (B) of FIG. 20, the key cylinder 93 is connected to the rod 92 at the rear as a result of the difference in the position where the key cylinder 93 is provided on the door. Thus, in Configuration Example 2, when the key cylinder 93 is displaced in the D1 direction by the unlocking operation, the external key lever 90 is pushed downward by the rod 92. Therefore, the external key lever 90 swings in the D4 direction around the swing axis X90 to be at the first position. On the other hand, when the key cylinder 93 swings in the D2 direction by the locking operation, the rod 92 pulls up the external key lever 90 upward. Therefore, the external key lever 90 swings in the direction D3 around the swing axis X90 to be in the second position. Thus, in the configuration example 1 and the configuration example 2, the first position and the second position of the external key lever 90 are reversed due to the difference in the position where the key cylinder 93 is provided on the door.

  Further, in the configuration example 3 shown in (C) of FIG. 20, the key cylinder 94 is different from the key cylinder 93 in the operation rotation direction. That is, the key cylinder 94 swings in the D1 direction by the unlocking operation and swings in the D2 direction by the locking operation. Thus, in Configuration Example 3, even if the key cylinder 94 is provided on the door in the same state as the key cylinder 93 of Configuration Example 1, if the key cylinder 94 swings in the D1 direction by the unlocking operation, the rod 92 , The external key lever 90 is pushed downward. In addition, when the key cylinder 94 swings in the D2 direction by the locking operation, the external key lever 90 is pulled up by the rod 92. For this reason, in Configuration Example 3, as in Configuration Example 2, the external key lever 90 swings in the D4 direction around the swing axis X90 to become the first position, and swings in the D3 direction around the swing axis X90. It moves to the second position. As described above, in the configuration example 1 and the configuration example 3, the first position and the second position of the external key lever 90 are reversed due to the difference in the operation rotational direction of the key cylinder 93 and the key cylinder 94.

  In the above-mentioned conventional vehicle door lock device, in order to cope with such inversion of the first position and the second position of the external key lever, the structure of the plurality of parts constituting the vehicle door lock device must be reconsidered. In addition, significant design changes are required. As a result, in this vehicle door lock device, it is necessary to prepare a plurality of types according to a plurality of vehicle types and the like, and it is difficult to realize a reduction in manufacturing cost.

  The present invention has been made in view of the above-described conventional circumstances, and an object of the present invention is to provide a vehicle door lock device capable of realizing reduction in manufacturing cost.

A vehicle door lock device according to the present invention comprises a housing fixed to a door that can be opened and closed with respect to a vehicle body;
A latch portion provided in the housing and capable of holding the door closed with respect to the vehicle body;
An operating portion provided in the housing and capable of operating the latch portion;
It is provided on the outside of the housing so as to be swingable around a swing axis, and swings to a first position by an unlocking operation on a key cylinder provided on the door, while being locked to a second position by a locking operation on the key cylinder Swinging external key lever,
A lock lever reciprocally movable between an unlocking position enabling activation of the actuating part with respect to the latch part, and a locking position disabling the actuating part actuating with respect to the latch part;
The outer key lever is coupled to the outer key lever and provided in the housing so as to be swingable around the swing axis, and integrally swings with the outer key lever swinging to the first position to unlock the lock lever. An internal key lever that is displaced to a position, and is integrally rocked with the external key lever that is swung to the second position to displace the lock lever to the locking position;
The lock lever is provided with a first engagement portion and a second engagement portion which are opposed to each other across an imaginary line extending in the reciprocation direction of the lock lever and passing the swing axis.
The internal key lever is coupled to the external key lever by selecting one of a first coupling position engageable to the first engagement portion and a second coupling position engageable to the second engagement portion. It is characterized in that it is configured as follows.

  In the door lock device for a vehicle according to the present invention, the first engaging portion and the second engaging portion extend in the reciprocation direction of the lock lever and are arranged to face each other across an imaginary line passing the pivot axis. ing. With such an arrangement, the internal key lever for which the first connection position is selected swings integrally with the external key lever that pivots to the first position to displace the lock lever, and the internal key lever for which the second connection position is selected is The direction in which the lock lever is displaced by pivoting integrally with the external key lever pivoted to the first position is opposite to the direction in which the lock lever is displaced. From this, when there is no reversal between the first position and the second position of the external key lever, the internal key lever is connected to the external key lever at the first connection position. On the other hand, when there is a reversal between the first position and the second position of the external key lever, the internal key lever is coupled to the external key lever at the second coupling position.

  Thereby, in this vehicle door lock device, even if the position where the key cylinder is provided on the door and the operation rotational direction of the key cylinder have various specifications, it is possible to cope with one type of vehicle door lock device. It becomes. As a result, in this vehicle door lock device, the number of parts can be reduced and the trouble of preparing a plurality of types can be suppressed.

  Therefore, according to the door lock device for a vehicle of the present invention, the manufacturing cost can be reduced.

  Further, in this door lock device for a vehicle, the position where the key cylinder is provided on the door and the operation rotational direction of the key cylinder can correspond to various specifications, so that the number of mountable vehicles and vehicle types can be increased.

  Preferably, the inner key lever includes a first inner key lever connected to the outer key lever in the first connection position, and a second inner key lever connected to the outer key lever in the second connection position. In this case, for example, it becomes easy to realize a configuration in which the internal key lever serves a function other than displacing the lock lever to the locking position or the locking position, such as operating the switch with the internal key lever.

  It is also desirable that one of the first connection position and the second connection position be selected and connected to the external key lever by changing the relative positional relationship of one internal key lever with the external key lever about the swing axis. . In this case, even if the position where the key cylinder is provided on the door and the operating rotation direction of the key cylinder have various specifications, the internal key lever can be made common, so the number of parts can be further reduced.

  The lock lever extends in the reciprocation direction, and is a first projection which is branched from the main body capable of acting on the actuating portion and the end on the swing axis center side of the main body so as to face each other across the virtual line. It is desirable to have a portion and a second protrusion. Preferably, the first engagement portion is formed on the first protrusion. And as for a 2nd engaging part, forming in the 2nd projection part is desirable.

  In this case, a recess is formed between the first engagement portion and the second engagement portion by the branch of the first projection and the second projection. Then, by arranging at least a part of the internal key lever in the recess, the internal key lever can be arranged at a position close to the lock lever. As a result, it is possible to suppress an increase in the size of the vehicle door lock device.

  Preferably, the lock lever is formed with a plurality of guides formed on the main body and at least one of the first protrusion and the second protrusion to restrict displacement of the lock lever in the reciprocating direction.

  In this case, the lock lever can be smoothly reciprocated by the plurality of guides separated from each other. Here, for example, in the case where the guides are respectively formed in the main body portion and the first projecting portion, the first projecting portion can support two of the first engaging portion and the guide. Further, in the case where the guides are respectively formed on the main body portion and the second projecting portion, the second projecting portion can support two of the second engaging portion and the guide. By these, the lock lever can be simplified.

  According to the door lock device for a vehicle of the present invention, the manufacturing cost can be reduced.

FIG. 1 is a perspective view showing a vehicle door lock device according to a first embodiment. FIG. 2 is a perspective view showing the vehicle door lock device of the first embodiment. FIG. 3 is an exploded perspective view of the base plate, the latch housing, and the latch portion in the vehicle door lock device of the first embodiment. FIG. 4 is a front view showing the first housing, the operating portion, the lock lever, the internal key lever and the like according to the vehicle door lock device of the first embodiment. FIG. 5 is an exploded perspective view of the first housing, the operating portion, the lock lever, the internal key lever and the like according to the vehicle door lock device of the first embodiment. FIG. 6 is an exploded perspective view of the worm wheel, the I / S lock lever, the lock lever, and the internal key lever according to the vehicle door lock device of the first embodiment. FIG. 7 is a front view showing the first housing, the operating portion, the lock lever, the internal key lever and the like according to the vehicle door lock device of the first embodiment. FIG. 8 is a schematic view illustrating the operation of the O / S open lever, the inertia lever, and the latch portion in the vehicle door lock device according to the first embodiment. FIG. 9 is a schematic view illustrating the operation of the O / S open lever, the inertia lever, and the latch portion according to the vehicle door lock device of the first embodiment. FIG. 10 is a schematic view illustrating the operation of the O / S open lever, the inertia lever, and the latch portion according to the vehicle door lock device of the first embodiment. FIG. 11 is a schematic view illustrating the operation of the O / S open lever, the inertia lever, and the latch portion according to the vehicle door lock device of the first embodiment. FIG. 12 is a rear view showing a state in which the internal key lever displaces the lock lever to the unlocking position according to the vehicle door lock device of the first embodiment. FIG. 13 is a rear view showing a state in which the internal key lever displaces the lock lever to the lock position according to the vehicle door lock device of the first embodiment. FIG. 14 is a rear view showing a state in which the internal key lever displaces the lock lever to the unlocking position in a state where the first position and the second position of the external key lever are reversed according to the vehicle door lock device of the first embodiment. It is. FIG. 15 is a rear view showing a state in which the internal key lever displaces the lock lever to the locking position in a state where the first position and the second position of the external key lever are reversed according to the vehicle door lock device of the first embodiment. is there. FIG. 16 is a rear view showing a state in which the internal key lever displaces the lock lever to the unlocking position according to the vehicle door lock device of the second embodiment. FIG. 17 is a rear view showing a state in which the internal key lever displaces the lock lever to the lock position according to the vehicle door lock device of the second embodiment. FIG. 18 is a rear view showing a state in which the internal key lever displaces the lock lever to the unlocking position when the first position and the second position of the external key lever are reversed according to the vehicle door lock device of the second embodiment. It is. FIG. 19 is a rear view showing a state in which the internal key lever displaces the lock lever to the locking position in a state where the first position and the second position of the external key lever are reversed according to the vehicle door lock device of the second embodiment. is there. FIG. 20 is a schematic view showing first to third configuration examples. FIG. 20A shows a configuration example 1. FIG. 20B shows a configuration example 2. (C) of FIG. 20 shows a configuration example 3.

  Hereinafter, first and second embodiments of the present invention will be described with reference to the drawings.

Example 1
As shown in FIGS. 1 and 2, the vehicle door lock device 1 of the first embodiment (hereinafter simply referred to as "door lock device 1") is an example of a specific embodiment of the vehicle door lock device of the present invention. It is. Although not shown, the door lock device 1 is fixed to a door that can be opened and closed with respect to the vehicle body of a vehicle such as a car, a bus, or an industrial vehicle. The door lock device 1 can hold the door closed with respect to the vehicle body by holding the striker S1 (see FIGS. 8 to 11) fixed to the vehicle body.

  1 and 2 illustrate the door lock device 1 disposed inside the rear end side of the door provided on the left side surface of the vehicle body. In addition, when the door lock device 1 is fixed to the rear end side of the door provided on the right side surface of the vehicle body, it is only a mistake. Furthermore, the door lock device 1 may be provided to a tailgate or the like.

  The longitudinal direction and the vertical direction shown in FIGS. 1 and 2 are based on the longitudinal direction and the vertical direction of the vehicle. Further, with respect to the vehicle inward and outward directions shown in FIGS. 1 and 2, the left side of the vehicle is the vehicle outer side, and the opposite side is the vehicle inner side, based on the person who gets into the vehicle cabin of the vehicle. The front-back direction, the up-down direction, and the vehicle inside-outside direction shown in FIGS. 3 to 19 are displayed in correspondence with FIGS. 1 and 2.

  As shown in FIG. 1, an outer door handle H1 and a key cylinder H2 are disposed on the outer surface of the door (not shown) to which the door lock device 1 is fixed. An indoor lock knob H3 and an inner door handle H4 are disposed on the inner surface of the door exposed to the vehicle interior.

  The upper end portion of the transmission rod C1 is connected to the outer door handle H1. The door lock device 1 is disposed below the outer door handle H1 inside the door. The lower end portion of the transmission rod C 1 is connected to the O / S open lever 20 of the door lock device 1. The O / S open lever 20 is an example of the “operation unit” in the present invention.

  The key cylinder H2 is integrally rotatably held by a key cylinder holding portion C2A rotatably provided at an upper end portion of the door lock device 1. Thereby, as shown in FIG. 1 and FIG. 2, the key cylinder holding portion C2A rotates about the first swing axis X1 if the rider etc. performs the unlocking operation to the key cylinder H2 using the key (not shown). Swing in the direction of D91. When the key cylinder H2 is locked, the key cylinder holding portion C2A swings in the D92 direction around the first swing axis X1.

  The key cylinder H2 is located rearward of the link rod C2B shown in FIG. Thus, the key cylinder holding portion C2A is connected to the upper end portion of the link rod C2B at the front. The lower end of the link rod C2B is connected to the front of the link lever C2C. The rear of the link lever C2C is connected to the first O / S lock lever 30 or the second O / S lock lever 31 described later with reference to FIG. Thus, as shown in FIG. 2, the link lever C2C is pivotable about the second pivot axis X2 in a state of being disposed outside the actuation housing 7 described later. The position of the link lever C2C indicated by a solid line in FIG. 2 is a neutral position. The link lever C2C is an example of the "external key lever" in the present invention. The second rocking axis X2 is an example of the "rocking axis" in the present invention.

  Here, the front of the key cylinder holding portion C2A is connected to the link rod C2B, so that the key cylinder holding portion C2A swings in the D91 direction around the first swing axis X1 by the unlocking operation of the key cylinder H2. Then, the link rod C2B pulls the front of the link lever C2C above the door lock device 1. Therefore, the link lever C2C pivots in the direction D93 around the second pivot axis X2, and becomes the first position 201 indicated by a two-dot chain line in FIG. 2 from the neutral position. Further, when the key cylinder holding portion C2A swings around the first swing axis X1 in the D92 direction by the locking operation of the key cylinder H2, the link rod C2B is located below the door lock device 1 in front of the link lever C2C. Push down. Therefore, the link lever C2C swings in the D94 direction around the second swing axis X2, and becomes the second position 202 shown by a two-dot chain line in FIG. 2 from the neutral position. Hereinafter, such swinging of the link lever C2C is referred to as a basic state. The link lever C2C is returned to the neutral position shown by the solid line in FIG. 2 by a return spring (not shown) incorporated in the key cylinder H2 when the key cylinder H2 is not operated for unlocking or locking. It is powered.

  As shown in FIG. 1, one end of a transmission cable C3 is connected to the indoor lock knob H3. One end of a transmission cable C4 is connected to the inner door handle H4. As shown in FIG. 2, the other end of the transmission cable C3 is drawn into the door lock device 1, and is connected to an I / S lock lever 35 described later with reference to FIG. As shown in FIG. 2, the other end of the transmission cable C4 is drawn into the door lock device 1 and connected to an I / S open lever 25 described later with reference to FIG. 4 and the like.

  The door lock device 1 includes a latch housing 9 shown in FIGS. 1 to 3 and an operation housing 7 shown in FIGS. 1, 2, 4, 5 and 7. As shown in FIGS. 1 and 2, the actuating housing 7 is assembled to the latch housing 9. The latch housing 9 and the operation housing 7 are examples of the "housing" of the present invention.

  The working housing 7 has a first housing 70 shown in FIG. 1 and a second housing 80 shown in FIG. The first and second housings 70 and 80 are made of resin. As shown in FIG. 1, the first housing 70 has a first base wall 71 and a first peripheral edge 73 surrounding the first base wall 71. As shown in FIG. 2, the second housing 80 has a second base wall 81 and a second peripheral edge 83 surrounding the second base wall 81. The second housing 80 is assembled to the first housing 70 by the first base wall 71 and the second base wall 81 facing each other and the first peripheral edge 73 and the second peripheral edge 83 being welded. ing. As a result, a storage chamber 7A shown in FIGS. 4 and 7 is formed in the inside of the operation housing 7. The operating mechanism 6 is accommodated in the accommodation room 7A.

  As shown in FIG. 3, the latch housing 9 has a third housing 90 made of resin, and a base plate 99 and a back plate 98 each made of steel plate. The fork rocking shaft 11S and the pole rocking shaft 12S are inserted into the third housing 90, the base plate 99 is arranged at the rear of the third housing 90, and the back plate 98 is arranged at the front of the third housing 90. Then, the rear ends of the fork rocking shaft 11S and the pole rocking shaft 12S are crimped and fixed to the base plate 99, and the front ends of the fork rocking shaft 11S and the pole rocking shaft 12S are added to the back plate 98. By tightening and fixing, a latch chamber 9A is formed inside the latch housing 9. The latch portion 8 is accommodated in the latch chamber 9A.

  As shown in FIGS. 4 and 7, the first housing 70 is formed with two support portions 76P and 76Q. The support portion 76 </ b> P is convexly provided on the first base wall portion 71 near the rear and upper end portions of the first peripheral edge portion 73 of the first housing 70. The support portion 76 </ b> Q is convexly provided on the first base wall portion 71 near the rear and lower end portions of the first peripheral edge portion 73 of the first housing 70. The support portions 76P and 76Q extend toward the second base wall portion 81 of the second housing 80.

  As shown in FIG. 3, two insertion holes 96P and 96Q are formed in the third housing 90. The insertion hole 96P is formed to penetrate in the vehicle inward and outward direction on the upper end side of the third housing 90. The insertion hole 96 </ b> Q is formed on the lower end side of the third housing 90 so as to penetrate in the vehicle inner and outer direction. Further, although not shown, in the second housing 80, two retaining portions that are respectively aligned with the tip end of the support portion 76P of the first housing 70 and the tip end of the support portion 76Q are recessed.

  Before the second housing 80 is assembled to the first housing 70, the third housing 90 is temporarily assembled to the first housing 70. Here, as shown in FIG. 4 and FIG. 7 and the like, a groove-shaped guide portion 71J is recessed in the rear end portion of the first base wall portion 71 in the first housing 70. Further, as shown in FIG. 3, a rib 90J is provided on the end surface of the third housing 90 on the vehicle outer side and the upper side so as to be convex. Then, the third housing 90 is provisionally assembled to the first housing 70 at an appropriate position by causing the third housing 90 to approach the first housing 70 while guiding the rib 90J with the guide portion 71J. As a result, the middle portion of the support portion 76P of the first housing 70 is inserted into the insertion hole 96P of the third housing 90. An intermediate portion of the support portion 76Q of the first housing 70 is inserted into the insertion hole 96Q of the third housing 90.

  Next, when the second housing 80 is assembled to the first housing 70, the tip end of the support portion 76P of the first housing 70 and the tip end of the support portion 76Q are fitted into the respective detachment preventing portions of the second housing 80. Then, the third housing 90 is joined to the first housing 70 and the second housing 80 by welding the first peripheral edge 73 of the first housing 70 and the second peripheral edge 83 of the second housing 80.

  As shown in FIGS. 2 and 3, the base plate 99 is formed with a plurality of fixing holes 99H and an entrance 99A. The door lock device 1 exposes the entrance 99A to the rear end surface of the door by inserting a plurality of setscrews (not shown) into the rear end surface of the door and further screwing them into the fixing holes 99H of the base plate 99. It is fixed to the door in the state. When the door lock device 1 moves with the opening and closing of the door, the striker S1 fixed to the vehicle body relatively enters or leaves the entrance 99A.

  As shown in FIG. 3, the latch portion 8 has a fork 11 and a pole 12. The fork 11 is swingably supported by a fork swing shaft 11S located above the entrance 99A. A torsion coil spring 11T is mounted on the fork rocking shaft 11S. The pole 12 is swingably supported by a pole swinging shaft 12S located below the entrance 99A. A torsion coil spring 12T is mounted on the pole swinging shaft 12S.

  As shown in FIGS. 8 to 11, the fork 11 is urged by the torsion coil spring 11T so as to rock in the D11 direction around the fork rocking shaft 11S. A portion of the fork 11 located on the entrance 99A side is branched into the inner convex portion 11A and the outer convex portion 11B. And striker S1 which entered into entrance 99A is settled in notch 11C formed between inner side convex part 11A and outer side convex part 11B. The fork 11 holds the striker S1 at the bottom of the entrance 99A in the state shown in FIG. 8, FIG. 10 and FIG. A latch surface 11D that can abut against a stopper surface 12A described later is formed on the tip side of the inner convex portion 11A facing the pole 12.

  The pole 12 is biased by the torsion coil spring 12T so as to swing in the D12 direction around the pole swinging axis 12S. Thereby, the pole 12 holds the posture shown in FIG. 8, FIG. 10 and FIG.

  A stopper surface 12A is formed in a portion of the pole 12 located on the bottom side of the entrance 99A. The stopper surface 12A is formed to face the above-described latch surface 11D. The arc forming the stopper surface 12A is interrupted on the fork 11 side, and a sliding surface 12C extending from the same to the pole swinging shaft 12S side is formed therefrom. On the other hand, on the side opposite to the stopper surface 12A across the pole swinging shaft 12S in the pole 12, a contact convex portion 12B is formed. As shown in FIG. 3, the contact convex portion 12 </ b> B protrudes in a columnar shape toward the front. The front end of the contact convex portion 12B protrudes forward from the latch chamber 9A through the third housing 90 and enters into the storage chamber 7A.

  As shown in FIGS. 8, 10 and 11, in the pole 12, the stopper surface 12A is in contact with the latch surface 11D of the inner convex portion 11A in a state where the fork 11 holds the striker S1 at the bottom of the entrance 99A. Thus, the fork 11 is fixed so as not to swing in the D11 direction. The position of the fork 11 shown in FIGS. 8, 10 and 11 is a latch position for holding the striker S1 in the entrance 99A.

  Further, as shown in FIG. 9, when an inertia lever 29 described later abuts on the contact convex portion 12B of the pole 12 and pushes it up, the pole 12 swings the pole while resisting the biasing force of the torsion coil spring 12T. It swings in the direction opposite to the D12 direction around the axis 12S. At this time, since the stopper surface 12A is separated from the latch surface 11D, the pole 12 releases the swing of the fork 11. As a result, the fork 11 swings in the D11 direction around the fork swing shaft 11S by the biasing force of the torsion coil spring 11T, and is displaced to the unlatched position that allows the striker S1 to separate from the inside of the entrance 99A.

  Conversely, when the striker S1 enters the entrance 99A, the striker S1 pushes the outer convex portion 11B, so the fork 11 swings in the direction opposite to the D11 direction, and from the unlatched position shown in FIG. , And returns to the latch position shown in FIGS. At this time, the tips of the outer convex portion 11B and the inner convex portion 11A sequentially slide on the sliding surface 12C. Then, when the inner convex portion 11A separates from the sliding surface 12C, the pole 12 swings in the D12 direction, and returns to the posture shown in FIG. 8, FIG. 10 and FIG. Therefore, the stopper surface 12A abuts on the latch surface 11D to fix the swing of the fork 11 in the latch position. As a result, the latch unit 8 holds the door closed with respect to the vehicle body.

  As shown in FIG. 3, a fork follow-up lever 59 is swingably supported at the upper part of the surface of the third housing 90 on the storage chamber 7A side. At one end of the fork following lever 59, a convex portion 59A is formed. As shown in FIGS. 8 to 11, the convex portion 59 </ b> A of the fork following lever 59 is in contact with the outer peripheral surface of the fork 11. Thereby, the fork following lever 59 follows the fork 11 and swings when the fork 11 is displaced between the latch position and the unlatched position. As shown in FIG. 3, a convex portion 59 </ b> B is formed at the other end of the fork follow-up lever 59. The convex portion 59B protrudes into the storage chamber 7A.

  As shown in FIGS. 4 to 7, the operating mechanism 6 includes an O / S open lever 20, an I / S open lever 25, an inertia lever 29, an I / S lock lever 35, a lock lever 40, an electric motor M1, and a worm wheel. A switch 39, a switch SW2, a first O / S lock lever 30, and a second O / S lock lever 31 are provided.

  The inertia lever 29 and the I / S open lever 25 are also examples of the “operation unit” in the present invention. The first and second O / S lock levers 30 and 31 are examples of the “inner key lever” in the present invention. More specifically, the first O / S lock lever 30 is an example of the “first internal key lever” in the present invention, and the second O / S lock lever 31 is an example of the “second internal key lever” in the present invention. In the door lock device 1, either the first O / S lock lever 30 or the second O / S lock lever 31 is selected. The selection of the first and second O / S lock levers 30 and 31 will be described later. 4 and 7 show the case where the second O / S lock lever 31 is selected.

  As shown in FIG. 5, an O / S open lever rocking shaft 20S is provided in a rearward convex shape at a rear and lower portion of the first base wall 71 in the first housing 70. The O / S open lever 20 is swingably supported by the O / S open lever swing shaft 20S. A torsion coil spring 20T is mounted on the O / S open lever pivot shaft 20S. As shown in FIGS. 8 to 11, the O / S open lever 20 is biased by the torsion coil spring 20T so as to swing in the D20 direction around the O / S open lever swing shaft 20S.

  As shown in FIG. 1 and FIG. 8 etc., one end of the O / S open lever 20 protrudes to the outside of the actuating housing 7, and the lower end of the transmission rod C1 is connected to the one end.

  As shown in FIGS. 4, 5 and 7, the inertia lever 29 is supported by the other end 20B of the O / S open lever 20 so as to be swingable around a third swing axis X29 extending in the front-rear direction. There is. The inertia lever 29 is biased by the torsion coil spring 29T so as to swing in the D29 direction around the swing axis X29 as shown in FIGS.

  When the outer door handle H1 shown in FIG. 1 is opened and the transmission rod C1 is lowered, one end of the O / S open lever 20 is pushed down as shown in FIG. 9, and the O / S open lever 20 moves in the D20 direction. Swinging in the opposite direction to raise the inertia lever 29.

  As shown in FIGS. 4, 5 and 7, the I / S open lever 25 is swingably supported by the first shaft portion 75P. The other end of the transmission cable C4 shown in FIG. 1 and FIG. 2 is connected to one end 25A of the I / S open lever 25 which is spaced downward from the first shaft 75P. That is, the I / S open lever 25 is connected to the inner door handle H4 via the transmission cable C4.

  As shown in FIG. 4, FIG. 5 and FIG. 7, an action portion 25 B is formed at a portion above the one end 25 A of the I / S open lever 25. The I / S open lever 25 pivots counterclockwise toward the paper surface of FIGS. 4 and 7 by the opening operation to the inner door handle H4. Thereby, the action part 25B pushes up the other end 20B of the O / S open lever 20, and raises the inertia lever 29.

  As shown in FIG. 5, the first O / S lock lever 30 and the second O / S lock lever 31 are supported by the O / S lock lever pivot shaft 30S. The first O / S lock lever 30 has a connecting shaft portion 30J projecting toward the inside of the vehicle. Further, the second O / S lock lever 31 has a connecting shaft portion 31J that protrudes toward the inside of the vehicle. As shown in FIG. 2, the connection shaft portions 30J and 31J protrude to the outside of the second housing 80. A link lever C2C is fixed to the tip end portions of the connecting shaft portions 30J and 31J so as to be integrally rotatable. Thus, the first O / S lock lever 30 and the second O / S lock lever 31 are connected to the link lever C2C. As a result, the first O / S lock lever 30 and the second O / S lock lever 31 interlock with the link lever C2C, and can rock around the second rocking axis X2 in the storage chamber 7A.

  As shown in FIG. 6, the first O / S lock lever 30 is formed with an insertion portion 30A into which the O / S lock lever pivot shaft 30S is inserted. Further, the first O / S lock lever 30 is formed with a first claw portion 30B and a second claw portion 30C which project rearward of the insertion portion 30A. Between the first claw portion 30B and the second claw portion 30C, an engagement concave portion 30D concaved from the rear toward the insertion portion 30A is provided. Further, in the first O / S lock lever 30, a switch operation portion 30E is formed in front of the insertion portion 30A.

  The second O / S lock lever 31 is formed with an insertion portion 31A through which the O / S lock lever pivot shaft 30S is inserted. Further, the second O / S lock lever 31 is formed with a first claw portion 31B and a second claw portion 31C which project forward than the insertion portion 31A. Between the first claw portion 31B and the second claw portion 31C, an engagement concave portion 31D which is concave from the front toward the insertion portion 31A is provided. Further, in the second O / S lock lever 31, a switch operation portion 31E is formed in front of the insertion portion 31A. As described above, in the second O / S lock lever 31, the first claw portion 31B, the second claw portion 31C, and the engagement recess 31D are provided in the opposite direction to the first O / S lock lever 30.

  As shown in FIGS. 12 to 15, the switch operating unit 30E and the switch operating unit 31E operate the switch SW1. That is, switch operating portions 30E and 31E turn on one contact in switch SW1 corresponding to the unlocking operation to key cylinder H2, and switch other contacts in switch SW1 to the locking operation to key cylinder H2. Set to ON. The ON / OFF signals of the two contacts of the switch SW1 are used to control the locking / unlocking of the door and to grasp the state of the door lock device 1. In FIG. 12 to FIG. 15, the illustration of the switch SW2 and the like is omitted in order to facilitate the description. The same applies to FIGS. 16 to 19 described later.

  In the door lock device 1, the first O / S lock lever 30 is selected when the swing of the link lever C2C due to the unlocking operation or the locking operation of the key cylinder H2 is in the basic state. Thus, the first O / S lock lever 30 and the link lever C2C are connected.

  As shown in FIGS. 4 to 7, the I / S lock lever 35 is swingably supported by the second shaft portion 75Q. The other end of the transmission cable C3 shown in FIGS. 1 and 2 is connected to one end 35A of the I / S lock lever 35. That is, the I / S lock lever 35 is connected to the indoor lock knob H3 via the transmission cable C3. The I / S lock lever 35 swings from the position shown in FIG. 4 to the position shown in FIG. 7 by the locking operation on the indoor lock knob H3. Further, the I / S lock lever 35 swings from the position shown in FIG. 7 to the position shown in FIG. 4 by the unlocking operation to the indoor lock knob H3.

  As shown in FIGS. 4 to 7, a cam 35 </ b> C is formed on the top of the I / S lock lever 35. As shown in FIG. 6, on the surface of the I / S lock lever 35 facing the outer side of the vehicle, the action portion 35B is provided so as to protrude toward the outer side of the vehicle.

  As shown in FIGS. 4 to 7, the worm wheel 39 is rotatably supported by the third shaft 75 </ b> R. As shown in FIG. 6, a cam portion 39C engageable with the cam 35C of the I / S lock lever 35 is formed on the surface of the worm wheel 39 facing the vehicle outer side. When the electric motor M1 is operated by the locking operation or the unlocking operation to the remote control key or the like, the worm wheel 39 is rotationally driven by the electric motor M1 and rotates clockwise or counterclockwise toward the sheet of FIG. 4 and FIG. Rotate. The worm wheel 39 swings the I / S lock lever 35 between the position shown in FIG. 4 and the position shown in FIG. 7 by the engagement of the cam portion 39C and the cam 35C.

  As shown in FIGS. 4, 6 and 7, an imaginary line L is defined in the lock lever 40. As shown in FIGS. 4 and 7, the virtual line L extends in the vertical direction of the door lock device 1 and passes through the second swing axis X2. The lock lever 40 has a main body 400, a first protrusion 401, and a second protrusion 402. The main body 400 extends substantially in the vertical direction along the imaginary line L. In the main body portion 400, an elongated hole 40H extending in a substantially vertical direction is formed. In the lower end portion of the main body 400, a recess 40B is provided. Furthermore, as shown in FIG. 6, in the main body 400, a switch operating portion 40F is formed above the long hole 40H.

  Further, as shown in FIGS. 6 and 8 to 11, a first surface 44A, a second surface 44B and a third surface 44C are formed between the elongated hole 40H and the recess 40B in the main body 400. . The first surface 44A, the second surface 44B and the third surface 44C are formed on the surface of the lock lever 40 facing the vehicle outer side. Each of the first surface 44A and the third surface 44C is a flat surface extending in the vertical direction, and the first surface 44A is shifted to the vehicle inner side relative to the third surface 44C. The second surface 44B is an inclined surface connected to the lower end of the first surface 44A and the upper end of the third surface 44C.

  As shown in FIGS. 4, 6 and 7, the first protrusion 401 and the second protrusion 402 are located above the main body 400. More specifically, the first protrusion 401 and the second protrusion 402 are branched from the end on the second swing axis X2 side of the main body 400, that is, the upper end of the main body 400, and the virtual line It protrudes so as to face each other across L. Thus, the first protrusion 401 is located rearward of the main body 400, and the second protrusion 402 is located forward of the main body 400. In addition, a recess 403 that is recessed toward the main body 400 is formed between the first protrusion 401 and the second protrusion 402. The lock lever 40 has a substantially "Y" shape that is bifurcated above the elongated hole 40H by the main body portion 400, the first protrusion portion 401, and the second protrusion portion 402.

  As shown in FIG. 6, a first engaging portion 40 </ b> C is provided on the first projecting portion 401 so as to protrude in a substantially cylindrical shape toward the vehicle outer side. In the second protrusion 402, a second engaging portion 40D is formed in a substantially cylindrical shape so as to protrude toward the vehicle outer side. The first engagement portion 40C and the second engagement portion 40D face each other with the virtual line L interposed therebetween. That is, the first engaging portion 40C is located rearward of the main body 400, and the second engaging portion 40D is located forward of the main body 400. The shapes of the first protrusion 40C and the second protrusion 40D can be designed as appropriate. Under the present circumstances, the 1st engaging part 40C and the 2nd engaging part 40D may be line symmetry which makes an imaginary line L a symmetry axis, and may not be line symmetry.

  Further, in the first projecting portion 401, a convex portion 40E is provided so as to be convex toward the vehicle outer side below the first engaging portion 40C. The long hole 40H and the protrusion 40E are examples of the "guide" in the present invention. The convex portion 40E may be convexly provided on the second projecting portion 402, and the convex portion 40E may be convexly provided on both the first projecting portion 401 and the second projecting portion 402.

  As shown in FIG. 5, the lock lever 40 is supported by the fourth shaft portion 75 </ b> S so as to be reciprocally movable by inserting the fourth shaft portion 75 </ b> S into the long hole 40 </ b> H. Moreover, the convex part 40E is arrange | positioned in the groove part 71E. As a result, as shown in FIGS. 4 and 7, the lock lever 40 can be reciprocated in the substantially vertical direction in the storage chamber 7A. Under the present circumstances, the long hole 40H guides the 4th axial part 75S, and the convex part 40E shown in FIG. 5 is guided by the groove part 71E. For these reasons, the lock lever 40 is capable of reciprocating in the substantially vertical direction. Further, as shown in FIGS. 4 and 7, the action portion 35B of the I / S lock lever 35 is engaged with the recess 40B of the lock lever 40.

  Here, as shown in FIGS. 12 and 13, when the first O / S lock lever 30 is selected, a part of the first O / S lock lever 30 is disposed in the recess 403 of the lock lever 40. Ru. In this state, in the engagement recess 30D of the first O / S lock lever 30, the first engagement portion 40C of the lock lever 40 is disposed. Thus, the first O / S lock lever 30 is engageable with the first engagement portion 40C via the first claw portion 30B and the second claw portion 30C. That is, the first O / S lock lever 30 is connected to the link lever C2C shown in FIG. 2 at a first connection position where it can be engaged with the first engagement portion 40C.

  When the I / S lock lever 35 swings from the position shown in FIG. 4 to the position shown in FIG. 7 by the locking operation to the indoor lock knob H3 or the locking operation to the remote control key etc., through the recess 40B and the action portion 35B The displacement is transmitted to the lock lever 40, and the lock lever 40 is pushed up from the position shown in FIG. 4 to the position shown in FIG.

  On the other hand, when the I / S lock lever 35 swings from the position shown in FIG. 7 to the position shown in FIG. 4 by the unlocking operation to the indoor lock knob H3 or the unlocking operation to the remote control key etc. The displacement is transmitted to the lock lever 40 via 35B, and the lock lever 40 is pulled down from the position shown in FIG. 7 to the position shown in FIG.

  Further, as shown in FIG. 4 and FIG. 7 to FIG. 11, on the front surface of the inertia lever 29, a projecting portion 29A is provided in a forwardly convex shape. The protrusion 29A is in sliding contact with the first surface 44A, the second surface 44B and the third surface 44C in response to the operation of the lock lever 40.

  As shown in FIGS. 8 to 11, an inertia lever guide surface 90 </ b> G is formed on the storage chamber 7 </ b> A side of the third housing 90. The inertia lever guide surface 90G is a downward flat surface located on the vehicle outer side than the abutted portion 12B of the pole 12. The inertia lever guide surface 90G extends outward of the vehicle so as to be separated from the abutted portion 12B. As shown in FIG. 8, when the O / S open lever 20 is not swinging, the inertia lever guide surface 90G is between the lower end of the abutted portion 12B and the upper end of the inertia lever 29 in the vertical direction. It is located in

  The position of the lock lever 40 shown in FIGS. 8 and 9 is the same as the position of the lock lever 40 shown in FIG. The position of the lock lever 40 shown in FIGS. 10 and 11 is the same as the position of the lock lever 40 shown in FIG.

  When the lock lever 40 is in the position shown in FIGS. 4, 8 and 9, the protrusion 29A of the inertia lever 29 abuts on the first surface 44A of the lock lever 40, whereby the inertia lever 29 is erected upward. It is held in the state. In this case, as shown in FIG. 9, when the inertia lever 29 ascends, it abuts on the abutted portion 12B and causes the pole 12 to open the fork 11.

  On the other hand, when the lock lever 40 is displaced to the position shown in FIG. 7, FIG. 10 and FIG. 11, the projection 29A of the inertia lever 29 slides on the second surface 44B of the lock lever 40, and contacts the third surface 44C. By the contact, the inertia lever 29 is held in a state of being inclined toward the outside of the vehicle. In this case, as shown in FIG. 11, when the inertia lever 29 ascends, it abuts on the inertia lever guide surface 90G, the inertia lever 29 separates from the abutted portion 12B, and the pole 12 fixes the fork 11. It will remain.

  The position of the inertia lever 29 shown in FIGS. 8 and 9 is an unlocking position that can act on the pole 12. The position of the inertia lever 29 shown in FIGS. 10 and 11 is a lock position incapable of acting on the pole 12. In the lock lever 40, at the positions shown in FIGS. 7, 10 and 11, the third surface 44C abuts on the projecting portion 29A to tilt the inertia lever 29. Thereby, the lock lever 40 holds the inertia lever 29 in the lock position. The position of the lock lever 40 shown in FIGS. 7, 10 and 11 is a lock position. Thus, the lock lever 40 is in the lock position and the inertia lever 29 is in the lock position, so that even if the O / S open lever 20 raises the inertia lever 29 by the opening operation of the outer door handle H1, the pole 12 keeps the fork 11 fixed. Similarly, even if the I / S open lever 25 raises the inertia lever 29 via the O / S open lever 20 by the opening operation to the inner door handle H4, the pole 12 keeps the fork 11 fixed. . That is, when the lock lever 40 is in the lock position, the operations of the O / S open lever 20, the I / S open lever 25 and the inertia lever 29 with respect to the latch portion 8 are invalidated.

  On the other hand, in the lock lever 40, the third surface 44C is separated from the protrusion 29A at the positions shown in FIGS. 4, 8 and 9, and the inertia lever 29 is not held at the lock position shown in FIGS. The inertia lever 29 brings the projection 29A into contact with the first surface 44A by the biasing force of the torsion coil spring 29T. Further, when an impact acts on the inertia lever 29, the inertia lever 29 moves the projection 29A away from the first surface 44A, and is displaced to the lock position. The position of the lock lever 40 shown in FIGS. 4, 8 and 9 is the unlocking position.

  In the unlocking position, the lock lever 40 raises the inertia lever 29 as shown in FIG. 8 and FIG. Thus, when the lock lever 40 is in the unlocking position, the fork 11 can be released to the pole 12 by the O / S open lever 20 and the I / S open lever 25 raising the inertia lever 29. Become. That is, when the lock lever 40 is in the unlocking position, the operation of the O / S open lever 20, the I / S open lever 25 and the inertia lever 29 with respect to the latch portion 8 is enabled.

  As shown in FIG. 4, when the lock lever 40 is displaced to the unlocking position, one of the contacts in the switch SW2 is turned ON by the switch operation unit 40F. On the other hand, as shown in FIG. 7, when the lock lever 40 is displaced to the lock position, the switch operating section 40F turns on another contact in the switch SW2. The ON / OFF signals of the two contacts in the switch SW2 are used to control the locking / unlocking of the door and to grasp the state of the door lock device 1.

  Further, in the door lock device 1, when the unlocking operation to the key cylinder H2 shown in FIG. 1 is performed, as shown in FIG. 12, the first O / S lock lever 30 displaces the lock lever 40 to the unlocking position. Further, when the locking operation is performed on the key cylinder H2 shown in FIG. 1, as shown in FIG. 13, the first O / S lock lever 30 displaces the lock lever 40 to the locking position.

  That is, when the link lever C2C swings in the D93 direction around the second swing axis X2 to the first position 201 by the unlocking operation to the key cylinder H2, as shown in FIG. The first O / S lock lever 30 pivots clockwise in the drawing about the second pivot axis X2. As a result, the first O / S lock lever 30 pushes the lock lever 40 downward while engaging with the first engagement portion 40C of the lock lever 40 via the first claw portion 30B. Thereby, the lock lever 40 is displaced to the unlocking position shown in FIG. 4 and FIG. At this time, as shown in FIG. 12, the switch operating portion 30E of the first O / S lock lever 30 turns on one contact in the switch SW1. When the lock lever 40 is displaced to the unlocking position, the I / S lock lever 35 is swung to the position shown in FIG. 4 or 12.

  On the other hand, when the link lever C2C swings around the second swing axis X2 in the D94 direction to the second position 202 by the locking operation on the key cylinder H2, as shown in FIG. The first O / S lock lever 30 pivots counterclockwise toward the paper surface around the second pivot axis X2. As a result, the first O / S lock lever 30 pulls up the lock lever 40 while engaging with the first engaging portion 40C of the lock lever 40 via the second claw portion 30C. Thereby, the lock lever 40 is displaced to the locking position shown in FIG. 7 and FIG. Further, at this time, as shown in FIG. 13, the switch operation unit 30E turns on another contact in the switch SW1. In addition, when the lock lever 40 is displaced to the locking position, the I / S lock lever 35 is swung to the position shown in FIG. 7 and FIG.

  Here, in the door lock device 1, depending on the position where the key cylinder H2 is provided on the door, the key cylinder holding portion C2A may be provided in the operation housing 7 at a position different from the position shown in FIGS. is there. Thereby, the key cylinder holding portion C2A may be connected to the link rod C2B at the rear. In addition, the operation rotational direction of the key cylinder H2 may be configured to be opposite to the state shown in FIGS. 1 and 2. In these cases, in the door lock device 1, the first position 201 and the second position 202 of the link lever C2C are reversed. That is, by the unlocking operation on the key cylinder H2, the link lever C2C swings in the D94 direction around the second swing axis X2, and becomes the first position 201. Then, by the locking operation on the key cylinder H2, the link lever C2C swings in the direction of D93 around the second swing axis X2, and becomes the second position 202. Hereinafter, such swinging of the link lever C2C is referred to as a reverse state.

  In this case, the door lock device 1 selects the second O / S lock lever 31 shown in FIG. 4 to FIG. 7, FIG. 14 and FIG. As shown in FIGS. 14 and 15, a part of the second O / S lock lever 31 is also disposed in the recess 403 of the lock lever 40. In this state, in the second O / S lock lever 31, the second engagement portion 40D of the lock lever 40 is disposed in the engagement recess 31D. Thus, the second O / S lock lever 31 can be engaged with the second engagement portion 40D via the first claw portion 31B and the second claw portion 31C. That is, the second O / S lock lever 31 is connected to the link lever C2C shown in FIG. 2 at the second connection position where it can be engaged with the second engagement portion 40D.

  Thereby, when the link lever C2C swings in the D94 direction around the second swing axis X2 by the unlocking operation to the key cylinder H2 and reaches the first position 201, as shown in FIG. The second O / S lock lever 31 pivots counterclockwise toward the paper surface around the second pivot axis X2. Therefore, the second O / S lock lever 31 pushes the lock lever 40 downward while engaging with the second engagement portion 40D of the lock lever 40 via the first claw portion 31B. For this reason, the lock lever 40 is displaced to the unlocking position shown in FIG. 4 and FIG. Further, at this time, as shown in FIG. 14, the switch operating portion 31E of the O / S lock lever 31 turns on one contact in the switch SW1.

  On the other hand, when the link lever C2C swings in the D93 direction around the second swing axis X2 to the second position 202 by the locking operation on the key cylinder H2, as shown in FIG. The second O / S lock lever 31 pivots clockwise toward the paper surface around the second pivot axis X2. As a result, the second O / S lock lever 31 pulls up the lock lever 40 while engaging with the second engagement portion 40D of the lock lever 40 via the second claw portion 31C. Thereby, the lock lever 40 is displaced to the locking position shown in FIG. 7 and FIG. At this time, as shown in FIG. 15, the switch operating unit 31E turns on another contact in the switch SW1. Thus, when the second O / S lock lever 31 displaces the lock lever 40 between the unlocking position and the locking position, the second O / S lock lever 31 pivots in the opposite direction to the first O / S lock lever 30.

  Thus, the door lock device 1 holds the door closed with respect to the vehicle body, opens the door, or locks or unlocks the door closed in accordance with various operations of the passenger of the vehicle. Can be

  Then, in the door lock device 1, the first O / S lock lever 30 or the second O / S lock lever 31 even if the position where the key cylinder H2 is provided on the door or the operation rotation direction of the key cylinder H2 has various specifications. It is possible to respond by selecting one of the two. As a result, in the door lock device 1, it is possible to reduce the number of parts and to suppress the trouble of preparing a plurality of types.

  Therefore, according to the door lock device 1 of the first embodiment, the manufacturing cost can be reduced.

  Further, in the door lock device 1, since the position where the key cylinder H2 is provided on the door and the operation rotation direction of the key cylinder H2 can correspond to various specifications, it is possible to increase the number of mountable vehicles and vehicle types. There is.

  Further, the first O / S lock lever 30 is formed to be connected to the link lever C2C at a first connection position that can be engaged with the first engagement portion 40C of the lock lever 40. On the other hand, the second O / S lock lever 31 is formed to be connected to the link lever C2C at a second connection position that can be engaged with the second engagement portion 40D of the lock lever 40. Further, switch operation portions 30E and 31E are formed on the first O / S lock lever 30 and the second O / S lock lever 31, respectively. Therefore, in the first O / S lock lever 30 and the second O / S lock lever 31, in addition to displacing the lock lever 40 to the locking position or the locking position, switching of the switch SW1, that is, ON / OFF operation of two contacts It is possible to do For this reason, in the door lock device 1, a dedicated part for switching the switch SW1 is unnecessary.

  Further, in the door lock device 1, since the first O / S lock lever 30 and the second O / S lock lever 31 are disposed in the recess 403 of the lock lever 40, the first O / S lock lever 30 and the second O The / S lock lever 31 can be disposed at a position close to the lock lever 40. As a result, in the door lock device 1, it is possible to suppress an increase in size.

  Further, the lock lever 40 can be smoothly reciprocated in the substantially vertical direction by the elongated hole 40H and the convex portion 40E. And the 1st projection part 401 can support the 1st engaging part 40C, and the 2nd projection part 402 can support the 2nd engaging part 40D. Here, in addition to the first engaging portion 40C, the first projecting portion 401 can also support the convex portion 40E. Thus, in the lock lever 40, a dedicated portion for supporting the convex portion 40E is not necessary, and the configuration can be simplified.

(Example 2)
In the door lock device 1 of the second embodiment, in place of the first and second O / S lock levers 30, 31, a third O / S lock lever 32 shown in FIGS. 16 to 19 is provided. The third O / S lock lever 32 is also an example of the “inner key lever” in the present invention. Further, in the door lock device 1 of the second embodiment, the switch SW1 is not provided.

  The third O / S lock lever 32 is formed with an insertion portion 32A through which the O / S lock lever pivot shaft 30S is inserted. Further, the third O / S lock lever 32 is formed with a first hook 32B and a second hook 32C. An engagement recess 32D is recessed between the first hook 32B and the second hook 32C.

  Although the detailed illustration is omitted, the third O / S lock lever 32 is also supported by the O / S lock lever pivot shaft 30S, similarly to the first and second O / S lock levers 30 and 31. The third O / S lock lever 32 is connected to the link lever C2C shown in FIG. 2 by a connecting shaft (not shown) projecting toward the inside of the vehicle. Also, as shown in FIGS. 16 to 19, a part of the third O / S lock lever 32 is disposed in the recess 403 of the lock lever 40. The other configuration of the door lock device 1 according to the second embodiment is the same as that of the door lock device 1 according to the first embodiment, and the same reference numerals are given to the same components and the detailed description of the configuration is omitted.

  In the door lock device 1 according to the second embodiment, as shown in FIGS. 16 and 17, when the swing of the link lever C2C by the unlocking operation or the locking operation of the key cylinder H2 is in the basic state, the third O / S lock lever In the state 32, the first claw 32 </ b> B and the second claw 32 </ b> C are directed rearward. Then, in this state, the third O / S lock lever 32 is connected to the link lever C2C while being supported by the O / S lock lever pivot shaft 30S.

  Thus, the first engagement portion 40C of the lock lever 40 is disposed in the engagement recess 32D of the third O / S lock lever 32. Thus, the third O / S lock lever 32 is engageable with the first engagement portion 40C via the first claw portion 32B and the second claw portion 32C. That is, the third O / S lock lever 32 is connected to the link lever C2C shown in FIG. 2 at the first connection position where it can be engaged with the first engagement portion 40C.

  Then, when the link lever C2C swings in the D93 direction around the second swing axis X2 to the first position 201 by the unlocking operation to the key cylinder H2, as shown in FIG. The third O / S lock lever 32 pivots clockwise in the drawing about the second pivot axis X2. Thereby, the third O / S lock lever 32 pushes the lock lever 40 downward while engaging with the first engaging portion 40C of the lock lever 40 via the first claw portion 32B. Thereby, the lock lever 40 is displaced to the unlocking position shown in FIG. 4 and FIG.

  On the other hand, when the link lever C2C swings in the D94 direction around the second swing axis X2 to the second position 202 by the locking operation to the key cylinder H2, as shown in FIG. The third O / S lock lever 32 pivots counterclockwise toward the paper surface around the second pivot axis X2. As a result, the third O / S lock lever 32 pulls up the lock lever 40 while engaging with the first engaging portion 40C of the lock lever 40 via the second claw portion 32C. Thereby, the lock lever 40 is displaced to the locking position shown in FIG. 7 and FIG.

  In the door lock device 1 of the second embodiment, when the swing of the link lever C2C by the unlocking operation or the locking operation of the key cylinder H2 is in the reverse state, the swing of the link lever C2C is in the basic state Then, the relative positional relationship around the second swing axis X2 with respect to the link lever C2C of the third O / S lock lever 32 is changed. That is, as shown in FIG. 18 and FIG. 19, in the third O / S lock lever 32, the first claw 32B and the second claw 32C are directed forward. Then, in this state, the third O / S lock lever 32 is connected to the link lever C2C while being supported by the O / S lock lever pivot shaft 30S.

  Thus, the second engagement portion 40D of the lock lever 40 is disposed in the engagement recess 32D of the third O / S lock lever 32. For this reason, the third O / S lock lever 32 is engageable with the second engagement portion 40D via the first claw portion 32B and the second claw portion 32C. That is, the third O / S lock lever 32 is connected to the link lever C2C shown in FIG. 2 at the second connection position where it can be engaged with the second engagement portion 40D.

  Then, when the link lever C2C swings in the D94 direction around the second swing axis X2 by the unlocking operation to the key cylinder H2 and reaches the first position 201, as shown in FIG. The third O / S lock lever 32 pivots counterclockwise toward the paper surface around the second pivot axis X2. Therefore, the third O / S lock lever 32 pushes the lock lever 40 downward while engaging with the second engaging portion 40D of the lock lever 40 via the second claw portion 32C. Therefore, the lock lever 40 is displaced to the unlocking position shown in FIG. 4 and FIG.

  On the other hand, when the link lever C2C swings in the D93 direction around the second swing axis X2 to the second position 202 by the locking operation to the key cylinder H2, as shown in FIG. The third O / S lock lever 32 pivots clockwise toward the paper surface around the second pivot axis X2. Thereby, the third O / S lock lever 32 pulls up the lock lever 40 while engaging with the second engaging portion 40D of the lock lever 40 via the first claw portion 32B. Thereby, the lock lever 40 is displaced to the locking position shown in FIG. 7 and FIG. Thus, the third O / S lock lever 32 changes the relative positional relationship around the second swing axis X2 with respect to the link lever C2C, so that the reverse of the case where the swing of the link lever C2C is in the basic state. The lock lever 40 is swung in a direction to displace the lock lever 40 between the unlocking position and the locking position.

  Thus, in the door lock device 1 of the second embodiment, the key cylinder H2 is a door only by changing the relative positional relationship around the second swing axis X2 with respect to the link lever C2C with respect to one third O / S lock lever 32. It is possible to correspond to the position of the key cylinder H2 and the operating rotation direction of the key cylinder H2. That is, in the door lock device 1 according to the second embodiment, the third O / S lock lever 32 is made common even when the position where the key cylinder H2 is provided on the door and the operation rotation direction of the key cylinder H2 have various specifications. It has become possible. Therefore, the door lock device 1 of the second embodiment can further reduce the number of parts as compared with the door lock device 1 of the first embodiment. The other actions in the door lock device 1 of the second embodiment are the same as those of the door lock device 1 of the first embodiment.

  Although the present invention has been described above in connection with the first and second embodiments, the present invention is not limited to the first and second embodiments described above, and can be appropriately modified and applied without departing from the scope of the present invention. Needless to say.

  For example, when the swing of the link lever C2C is in the basic state, the second engagement portion 40D of the lock lever 40 does not engage with the first O / S lock lever 30 or the third O / S lock lever 32. Therefore, in the second projection 402 of the lock lever 40, a portion including the second engagement portion 40D may be cut off.

  The present invention is applicable to vehicles such as cars, buses or industrial vehicles.

DESCRIPTION OF SYMBOLS 1 ... Door lock apparatus for vehicles 7, 9 ... Housing (7 ... operation housing, 9 ... latch housing)
8: Latch part 20, 25, 29: Operation part (20: O / S open lever, 25: I / S open lever, 29: inertia lever)
H2 ... Key cylinder X2 ... Swing axis (2nd swing axis)
201: First position 202: Second position C2C: External key lever (link lever)
40: Lock lever 30: Internal key lever, 1st internal key lever (1st O / S lock lever)
31 ... Internal key lever, 2nd internal key lever (2nd O / S lock lever)
32 ... Internal key lever (3rd O / S lock lever)
L: virtual line 40C: first engaging portion 40D: second engaging portion 400: main body portion 401: first projecting portion 402: second projecting portion 40E, 40H: guide (40E: convex portion, 40H: elongated hole)

Claims (5)

A housing fixed to a door that can be opened and closed with respect to the vehicle body;
A latch portion provided in the housing and capable of holding the door closed with respect to the vehicle body;
An operating portion provided in the housing and capable of operating the latch portion;
It is provided on the outside of the housing so as to be swingable around a swing axis, and swings to a first position by an unlocking operation on a key cylinder provided on the door, while being locked to a second position by a locking operation on the key cylinder Swinging external key lever,
A lock lever reciprocally movable between an unlocking position enabling activation of the actuating part with respect to the latch part, and a locking position disabling the actuating part actuating with respect to the latch part;
The outer key lever is coupled to the outer key lever and provided in the housing so as to be swingable around the swing axis, and integrally swings with the outer key lever swinging to the first position to unlock the lock lever. An internal key lever that is displaced to a position, and is integrally rocked with the external key lever that is swung to the second position to displace the lock lever to the locking position;
The lock lever is provided with a first engagement portion and a second engagement portion which are opposed to each other across an imaginary line extending in the reciprocation direction of the lock lever and passing the swing axis.
The internal key lever is coupled to the external key lever by selecting one of a first coupling position engageable to the first engagement portion and a second coupling position engageable to the second engagement portion. Vehicle door lock device characterized in that it is configured.   The internal key lever according to claim 1, further comprising: a first internal key lever coupled to the external key lever at the first coupling position; and a second internal key lever coupled to the external key lever at the second coupling position. Vehicle door lock device.   One of the first connection position and the second connection position is selected and connected to the external key lever by changing the relative positional relationship of the one inner key lever with the outer key lever about the swing axis. A vehicle door lock device according to claim 1. The lock lever extends in the reciprocating direction and is capable of acting on the actuating portion;
It has a first projecting portion and a second projecting portion which are branched from an end portion on the swing axis center side of the main body portion and project so as to face each other across the virtual line,
The first engaging portion is formed on the first projecting portion,
The door lock device for vehicles according to any one of claims 1 to 3 in which said 2nd engaging part is formed in said 2nd projection part.   The lock lever is formed with a plurality of guides formed on the main body and at least one of the first projection and the second projection to restrict displacement of the lock lever in the reciprocating direction. The vehicle door lock device according to claim 4.

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