JP2014156748A - Lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock device, easy in installation, by reducing the number of part items, while securing strength.SOLUTION: In the lock device, a base member 70 of a fixing device 7 comprises a first base member 73 and a second base member 74. The first base member 73 is composed of first plate parts 73A and 73B mutually opposed by making a pair and a first connection part 73C for integrally connecting both the first plate parts 73A and 73B. The second base member 74 is composed of second plate parts 74A and 74B mutually opposed by making a pair and a second connection part 74C for integrally connecting both the second plate parts 74A and 74B. Both the first plate parts 73A and 73B and both the second plate parts 74A and 74B are formed as one side superposition part and the other side superposition part mutually opposed by making a pair by being superposed by including the movement direction D2. An access road 71 is formed in at least one of the one side superposition part and the other side superposition part.

Description

  The present invention relates to a locking device.

  Patent Document 1 discloses a lock device used in a vehicle having a double door. In this vehicle, locking devices are provided at both upper and lower ends opposite to the hinge portion that connects the vehicle main body and the door. In addition, an operating device that operates the lock device by opening the door handle or the like is provided at an intermediate position in the vertical direction of the door.

  The lock device includes a striker assembled to the vehicle body and a fixing device assembled to the door. The striker has a pin portion extending in the axial direction. The fixing device receives the pin portion from the moving direction orthogonal to the axial direction, and fixes the striker.

  Although the fixing device is not clear in Patent Document 1, in general, a base member in which an entrance path into which the pin portion enters is formed, and the base member can swing around a fork axis parallel to the axial direction. A fork that engages with the pin part in a state in which the pin part has entered the approach path, and a base member that can swing around a pole axis parallel to the axial direction, and can fix or release the fork It is equipped with a pole.

  As a base member of this fixing device, as shown in Patent Document 2, a first base member having a first plate portion, and a second base member having a second plate portion facing the first plate portion, Can be employed. A synthetic resin core can be held between the first and second base members. This core holds forks and poles. The core extends in the fork axis direction and passes through a fork pin that supports the fork so as to swing and a pole pin that extends in the pole axis direction and supports the pole so as to swing.

  When the base member includes a plurality of base members as described above, a plurality of fastening pins are generally used to ensure the strength of the fixing device. For example, the first and second base members house a fork, a pole, and a core as necessary. Then, both ends of the fork pin and the pole pin are caulked, and a plurality of fastening pins are inserted into the first and second base members, and both ends of each fastening pin are caulked. Thus, the locking device fixing device is assembled.

Japanese Patent No. 4209996 Japanese National Patent Publication No. 11-513864

  However, in the lock device as described above, a plurality of base members are fastened not only by fork pins and pole pins but also by a plurality of fastening pins to form a fixing device. For this reason, in this locking device, a certain number or more of fastening pins are necessary to ensure the strength of the fixing device, and the number of parts is large. In addition, this lock device requires a lot of man-hours for assembly. For this reason, the lock device is expensive.

  Further, since a large load can act on the approach path formed by the base member from the pin portion of the striker, it is necessary to sufficiently ensure the strength of the base member near the approach path. In this regard, if the number of base members is increased, not only the number of base members is increased, but a larger number of fastening pins are required, and the assembly is troublesome.

  The present invention has been made in view of the above-described conventional situation, and it is an object to be solved to provide a locking device that can reduce the number of components and can be easily assembled while ensuring strength. .

The locking device of the present invention comprises a striker having a pin portion extending in the axial direction, and a fixing device that receives the pin portion from a moving direction orthogonal to the axial direction and fixes the striker.
The fixing device is provided with a base member formed with an entry path through which the pin portion enters, and is swingably provided around the fork axis parallel to the axial direction in the base member, and the pin portion is provided in the entry path. In a locking device comprising a fork that engages with the pin portion in a state in which it has entered, and a fixing means provided on the base member and capable of fixing the fork,
The base member has a first base member and a second base member,
The first base member includes a first plate portion that faces each other in a pair, and a first connection portion that integrally connects both the first plate portions,
The second base member includes a second plate portion that faces each other in a pair, and a second connection portion that integrally connects both the second plate portions,
Both the first plate portion and both the second plate portions are overlapped including the moving direction to form a superimposed portion facing each other in a pair,
The approach path is formed in at least one of the overlapping portions (Claim 1).

  In the locking device of the present invention, the first base member and the second base member constituting the base member of the fixing device each have a U shape. For this reason, in this locking device, it is not necessary to fasten the first base member itself, and it is not necessary to fasten the second base member itself. It is sufficient to fasten the first base member and the second base member. For this reason, the fastening pin for ensuring the intensity | strength of a fixing device can be made unnecessary or can be reduced. In addition, this lock device can be easily assembled.

  Further, in this locking device, an approach path is formed in at least one of the overlapping portions where the first and second plate portions of the first and second base members are overlapped. For this reason, even if the number of base members is not increased more than necessary, it is easy to ensure the strength of the base member near the approach path.

  Therefore, the locking device of the present invention can reduce the number of parts while ensuring strength, and can be easily assembled.

  Further, in this locking device, if one of the first and second base members is provided with an attachment portion for attachment to the counterpart material, the other member can be changed by changing the shape of one of them according to the counterpart material. Can be shared. In this case, since parts can be shared for right and left doors, or parts can be shared between models with different mounting parts, cost reduction can be realized.

  In the locking device of the present invention, the base member can have a third base member, a fourth base member, etc. in addition to the first and second base members. In this case, the third and fourth base members may also have a configuration corresponding to the first and second base members. In the present invention, the term “parallel” does not mean geometrical parallelism but includes substantially parallel.

  In the locking device according to the present invention, the overlapping portion includes one side overlapping portion including one first plate portion and one second plate portion, and the other including the other first plate portion and the other second plate portion. It can consist of a side overlap part. The approach path may be formed in one of the one side overlapping portion and the other side overlapping portion. Desirably, the approach path is formed in the one side overlapping portion and the other side overlapping portion (Claim 2). If the approach path is formed in the one side overlapping portion and the other side overlapping portion, the locked state in which the fork is engaged with the pin portion of the striker can be reliably maintained.

  In the locking device of the present invention, one of the first connecting part and the second connecting part is located next to the approach path, and the other of the first connecting part and the second connecting part is located on the back side of the approach path. (Claim 3). In this case, the fixing device has a strong box shape in which the four surfaces adjacent to each other together with the overlapping portions are walls by crossing the first connecting portion and the second connecting portion. For this reason, this fixing device becomes difficult to deform | transform with respect to the impact force which acts from multiple directions, and exhibits the outstanding safety | security.

  In the locking device of the present invention, the second base member may be provided outside the first base member. In addition, the second connecting portion may extend in parallel with the approach path, and the first connecting portion may be located on the back side of the approach path. And it is desirable for the 1st connection part to form the support part which can support the back end of the 2nd connection part (Claim 4). In this case, in the locked state in which the fork is engaged with the pin portion of the striker, for example, when a force in the direction in which the door is separated from the vehicle body is applied due to a collision, a large load acts from the pin portion around the approach path, and the second connection If the portion is to be deformed in the back direction, the support portion of the first connecting portion supports the back end of the second connecting portion, and the deformation of the approach path can be prevented.

  Note that the first base member may be provided outside the second base member. In addition, the second connecting portion may extend in parallel with the approach path, and the first connecting portion may be located on the back side of the approach path. In this case, it is also preferable that a support portion capable of supporting the back end of the second connection portion is formed in the first connection portion.

  In the locking device of the present invention, it is desirable that the fork is provided so as to be swingable by a fork pin extending in the fork axis direction and inserted through both overlapping portions. In this case, the first base member and the second base member can be fastened with the fork pins.

  In the locking device of the present invention, the fixing device may further include a core inserted into the base member and capable of holding the fork. The core preferably has a fork pin inserted therethrough (claim 6). In this case, the fixing device can be easily assembled by holding the fork on the core and inserting them into the base member. Furthermore, the core can support the fork so as to be able to swing with respect to the base member by inserting the fork pin.

  In the locking device of the present invention, the fixing means may be provided on the base member so as to be swingable around a pole axis parallel to the axial direction, and may have a pole capable of fixing or opening the fork. The pole can be provided so as to be swingable by a pole pin extending in the axial direction of the pole and inserted through both overlapping portions. The core preferably holds the pole and penetrates the pole pin. In this case, the first base member and the second base member can be fastened with a pole pin. Further, the fixing device can be easily assembled by holding the pole on the core and inserting them into the base member. Furthermore, the core can support the pole so as to be swingable with respect to the base member by inserting the pole pin.

  In the locking device of the present invention, it is desirable that the pole is provided with an open cable for swinging the pole so that the fork is opened by the opening operation. In this case, a general switching lever that swings the pole can be eliminated, and the number of parts can be reduced.

  In the locking device of the present invention, the fixing means may include an inertia lever that is provided so as to be swingable around an inertial axis parallel to the axial direction and that can fix the pole by an inertial force exceeding a threshold value. The core desirably holds an inertia lever (claim 9).

  When an impact force is applied to the entire apparatus including the lock device of the present invention, for example, a vehicle, and the door is about to open, the pole can be fixed by the inertia force generated in the inertia lever by the impact. Thereby, it can prevent that a fork opens, and can maintain a door in a closed state. Further, this inertia lever is also held in the core together with the fork and the pole, so that the assembly becomes easy.

  The locking device of the present invention can reduce the number of parts while ensuring strength, and can be easily assembled.

It is a principal part perspective view of the vehicle to which the locking device of an Example is applied. It is AA arrow sectional drawing of FIG. It is the disassembled perspective view which looked at the fixing device in the locking device of an example from the car outside direction. It is the disassembled perspective view which looked at the fixing device in the locking device of an Example from the in-vehicle direction. FIG. 1A is a perspective view seen from the vehicle exterior direction, and FIG. 1B is a perspective view seen from the vehicle interior direction. FIG. 8 is a cross-sectional view taken along the line CC of FIG. 7 in relation to the fixing device in the locking device of the embodiment. FIG. 7 is a cross-sectional view taken along the line B-B of FIG. FIG. 8 is a cross-sectional view taken along the arrow D-D in FIG. 7 according to the fixing device in the locking device of the embodiment. It is an operation explanatory drawing of a fork and a pole concerning a fixing device in a locking device of an example. It is operation | movement explanatory drawing of an inertia lever in connection with the fixing device in the locking device of an Example. It is a perspective view explaining the assembly process of a base member, a core, a fork, and a pole in connection with the fixing device in the locking device of the embodiment.

  Hereinafter, an embodiment in which the locking device of the present invention is applied to a vehicle having a double door is described with reference to the drawings.

  As shown in FIG. 1, this vehicle has an opening 2 on the left side surface of a vehicle main body 1 that is substantially parallel to the traveling direction of the vehicle. Two doors 3 and 4 are provided in the opening 2 side by side. The front door 3 can swing in the horizontal direction by a hinge 31 on the front edge side of the opening 2. Further, the rear door 4 can swing in the horizontal direction by a hinge 41 on the rear edge side of the opening 2. Each door 3, 4 can be opened to the outside of the vehicle as indicated by an arrow from a closed position in which the free end sides opposite to the hinges 31, 41 are brought close to each other. That is, the doors 3 and 4 open the opening 2 by so-called double doors.

  In this vehicle, a pillar that partitions the opening 2 between the doors 3 and 4 is not provided. For this reason, the locking device 5 is installed on the upper and lower ends of the door 4 on the side opposite to the hinge 41.

  As shown in FIG. 2, the lock device 5 positioned at the upper end of the door 4 includes a striker 6 assembled to the vehicle main body 1 and a fixing device 7 assembled to the upper end of the door 4. The fixing device 7 fixes the striker 6 to maintain the door 4 in a closed state, and the door 4 can be opened by releasing the closed state. The same applies to the locking device 5 located at the lower end of the door 4.

  As shown in FIG. 1, an operating device 10 is provided at an intermediate position in the vertical direction of the door 4. The actuating device 10 displaces the open cable 11 by an opening operation of a door handle or the like to actuate both the locking devices 5 to release the closed state of the door 4. The rear door 4 is opened in an auxiliary manner after the front door 3 is opened. For this reason, when the door 3 is in the closed state, the actuation device 10 invalidates the opening operation on the door 4 and prevents the open cable 11 from being displaced. As a result, even if there is an opening operation on the door 4, both the locking devices 5 do not operate, and the closed state of the door 4 is maintained.

  As shown in FIGS. 3 to 5, the striker 6 includes a metal bar 61 formed by bending in a U-shape and a fixture 62 that fixes both ends thereof. An axial direction D1 of the pin portion 61A, which is an intermediate side of the metal bar 61, extends in the front-rear direction of the vehicle body 1 substantially parallel to the side surface of the vehicle body 1.

  The fixing device 7 includes a base member 70, a fork 72, a pole 76, an inertia lever 77, and a core 75. The fixing device 7 receives the pin portion 61A in the entry path 71 of the base member 70 from the moving direction D2 orthogonal to the axial direction D1, and keeps the door 4 closed by engaging the fork 72 with the pin portion 61A. To do. The moving direction D2 extends in the inner and outer directions of the vehicle. In the following description of the fixing device 7, the posture of the fixing device 7 in a state where the door 4 is closed is used as a reference.

  The base member 70 includes a first base member 73 and a second base member 74. The first base member 73 includes first plate portions 73A and 73B that face each other in a pair, and a first connection portion 73C that integrally connects the first plate portions 73A and 73B. The first base member 73 is formed by bending a plate-shaped metal material into a U shape. The second base member 74 includes second plate portions 74A and 74B that face each other in a pair, and a second connection portion 74C that integrally connects the second plate portions 74A and 74B. The second base member 74 is also formed by bending a plate-like metal material into a U shape.

  The second base member 74 is disposed so as to overlap the outside of the first base member 73. Specifically, the second base member 74 is arranged such that one second plate portion 74A overlaps the outside of the first plate portion 73A, and the other second plate portion 74B overlaps the outside of the first plate portion 73B. It covers the outside of the first base member 73. As shown in FIG. 7, one second plate portion 74A and one first plate portion 73A are overlapped to form one side overlapping portion 70A. Moreover, the other 2nd board part 74B and the other 1st board part 73B are overlapped, and it is set as the other side superimposition part 70B.

  As shown in FIGS. 3 and 4, the one-side overlapping portion 70A and the other-side overlapping portion 70B include a moving direction D2. The one side overlapping portion 70A and the other side overlapping portion 70B face each other. An approach path 71 is formed in the one side overlapping portion 70A and the other side overlapping portion 70B.

  The first connecting portion 73 </ b> C of the first base member 73 is positioned on the back side of the approach path 71, that is, on the vehicle outer side, and extends in the vertical direction. The second connecting portion 74 </ b> C of the second base member 74 is located above the approach path 71 and extends substantially parallel to the approach path 71, that is, inward and outward of the vehicle. That is, the first connecting portion 73C and the second connecting portion 74C are in a substantially orthogonal positional relationship. For this reason, the base member 70 forms a box shape in which the four adjacent surfaces together with the one-side overlapping portion 70A and the other-side overlapping portion 70B are substantially walls, and has a strong configuration. In other words, the first base member 73 and the second base member 74 are formed by bending a sheet metal into a simple substantially U-shape, and by superposing them by changing the direction by approximately 90 degrees, the four adjacent surfaces are overlapped. It forms a strong box that is almost a wall.

  The second plate portions 74A and 74B of the second base member 74 are formed with bending portions 74D that protrude outward. By fixing the mounting portion 74D to the inside of the door 4 with screws, rivets or the like, the fixing device 7 is installed inside the door 4 with the approach path 71 directed in the in-vehicle direction.

  A synthetic resin core 75 is inserted between the first plate portions 73A and 73B of the first base member 73. A fork 72 and a pole 76 are disposed between the core 75 and one first plate portion 73A. The pole 76 is an example of a fixing means that can fix the fork 72. Between the core 75 and the other first plate portion 73B, an inertia lever 77, a detector 78, and buffer bodies 79 and 80, which will be described later, are arranged.

  The core 75 has a notch 71 </ b> A at a position corresponding to the approach path 71. The notch 71A is slightly narrower than the entry path 71 so that the pin portion 61A does not interfere with the entry path 71 of the base member 70 and is guided to the notch 71A of the core 75. A portion of the core 75 closer to the second connecting portion 74C than the notch 71A is a guide portion 75C. 75 C of guide parts are located above the approach path 71 seeing from the open end side of the approach path 71, and bulge so that the 2nd connection part 74C and 2nd board part 74A, 74B adjacent to it may be covered. 75 C of guide parts are slidably contacted with the pin part 61A, when the pin part 61A has shifted | deviated from the approach path 71, and guides the pin part 61A so that it may approach into the approach path 71.

  As shown in FIGS. 3, 5 </ b> A, and 6, a positioning hole 73 </ b> K is formed in the first connecting portion 73 </ b> C of the first base member 73. On the other hand, a protrusion 75D is provided at a position corresponding to the positioning hole 73K of the core 75. The core 75 is positioned with respect to the first base member 73 by fitting the protrusion 75 </ b> D of the core 75 into the positioning hole 73 </ b> K of the first base member 73.

  A support portion 73J is formed on the first connecting portion 73C of the first base member 73. The support portion 73J extends upward from the upper end edge of the first connecting portion 73C. The front end of the support portion 73J is substantially the same height as the back end of the second connecting portion 74C. The front end of the support portion 73J is in contact with the back end of the second connecting portion 74C from the outside of the vehicle, or is opposed from the outside of the vehicle with a slight gap. In the locked state in which the fork 72 is engaged with the pin portion 61A of the striker 6, for example, when a force in a direction in which the door 3 is separated from the vehicle body is applied due to a collision, the second connection is made after the pin portion 61A collides with the approach path 71. Even if the portion 74C is deformed in the back direction (the direction of arrow F in FIG. 6), the support portion 73J supports the back end of the second connection portion 74C and reinforces the second connection portion 74C.

  As shown in FIGS. 6 and 7 and the like, the fork 72 is supported by a fork pin 81 so as to be swingable around the fork axis X72. The fork shaft center X72 extends in parallel with the shaft center direction D1 of the pin portion 61A when the door 4 is closed. The fork pin 81 passes through the core 75 in the middle.

  As shown in FIGS. 3 and 4, through holes 73F and 74F are formed in the one-side overlapping portion 70A. One end of the fork pin 81 is supported by the through holes 73F and 74F. In addition, through holes 73E and 74E are formed in the other side overlapping portion 70B. The other end of the fork pin 81 is supported by the through holes 73E and 74E. A hollow cylinder part 75A formed in a protruding state on the core 75 is interposed between the fork 72 and the fork pin 81, and the fork 72 swings along the outer periphery of the hollow cylinder part 75A. However, since the fork pin 81 receives an impact acting on the fork 72 by opening and closing the door 4, the fork 72 is substantially supported by the fork pin 81.

  As shown in FIG. 6 and the like, the pole 76 is located below the fork 72. The pole 76 is supported by a pole pin 82 so as to be swingable around the pole axis X76. Similarly to the fork axis X72, the pole axis X76 extends in parallel with the axis D1 of the pin portion 61A when the door 4 is closed. The pole pin 82 passes through the core 75 in the middle.

  As shown in FIGS. 3 and 4, through holes 73G and 74G are formed in the one-side overlapping portion 70A. One end of the pole pin 82 is supported by the through holes 73G and 74G. Further, through holes 73H and 74H are formed in the other side overlapping portion 70B. The other end of the pole pin 82 is supported by the through holes 73H and 74H. A hollow cylinder part 75B formed in a protruding state on the core 75 is interposed between the pole 76 and the pole pin 82, and the pole 76 swings along the outer periphery of the hollow cylinder part 75B. 76 is substantially supported by a pole pin 82.

  The fork pins 81 and the pole pins 82 are inserted into the core 75 and the base member 71, respectively, and then are secured to the base member 70 by caulking or the like at their ends. Thereby, the core 75, one first plate portion 73A and second plate portion 74A, and the other first plate portion 73B and second plate portion 74B are positioned and fixed to each other.

  As shown in FIGS. 6 to 9 and the like, the fork 72 has an outer periphery that swings across the entry path 71 and includes a notch 72A that is recessed radially inward from the outer periphery. That is, the fork 72 has a bifurcated shape with a notch 72A in between. On the outer periphery of the fork 72, locking step portions 72C and 72D are formed at intervals in the swinging direction. The fork 72 is urged by a spring 83 in a direction in which the cutout 72A moves from the back end of the entry path 71 to the open end, that is, in the clockwise direction toward the plane of FIG. 6 and FIG.

  As shown in FIG. 8, a protrusion 72 </ b> B is provided on the side surface of the fork 72. The protrusion 72B protrudes into an arc-shaped long hole 75M formed in the core 75. As the fork 72 swings, the protrusion 72B moves in the long hole 75M. When the protrusion 72B is positioned in the vicinity of the end of the long hole 75M on the vehicle outer side, the open end of the notch 72A of the fork 72 is at a position corresponding to the open end of the entry path 71.

  As shown in FIGS. 6 and 9, the pole 76 has a locking projection 76A that can be locked to the locking steps 72C and 72D. The pole 76 is urged by the spring 84 in the direction in which the locking projection 76A approaches the fork 72, that is, in the counterclockwise direction toward the plane of FIG. 6 and FIG.

  As shown in FIGS. 9A to 9C, the fork 72 is attached to the spring 83 by the notch 72 </ b> A being pushed toward the back end side of the entry path 71 by the pin portion 61 </ b> A entering the entry path 71. It swings counterclockwise toward the paper surface of FIG. 9 while resisting the force. As shown in FIG. 9B, the fork 72 is fixed at the half-latch position by the locking step 72C being locked by the locking protrusion 76A at a position located in the middle of the approach path 71. The Further, as shown in FIG. 9C, the fork 72 has a notch 72A positioned at the back end of the approach path 71, and the locking step 72D is locked by the locking protrusion 76A. Fixed to the full latch position.

  As shown in FIGS. 6 and 9, one end 11 </ b> A of the open cable 11 is connected to the tip of the pole 76. The other end of the open cable 11 is connected to the actuator 10 as shown in FIG. The actuating device 10 displaces the open cable 11 when the door 4 is opened after the front door 3 is opened. Thereby, the one end 11A of the open cable 11 is displaced downward, and the tip of the pole 76 is pulled down. For this reason, the pole 76 swings clockwise toward the paper surface of FIGS. 6 and 9 while resisting the biasing force of the spring 84. As a result, the locking protrusion 76A does not lock the locking step portion 72C or the locking step portion 72D, and the fixing of the fork 72 by the pole 76 is released. As a result, as shown in FIG. 9D, the fork 72 is urged by the spring 83 and swings clockwise toward the paper surface of FIG.

  As shown in FIGS. 3, 4, 8, and 10, the inertia lever 77 is supported by an inertia pin 85 attached to the core 75 so as to be swingable around the inertia axis X <b> 77. The inertial axis X77 extends parallel to the axial direction D1 of the pin portion 61A when the door 4 is closed.

  As shown in FIGS. 8 and 10, the pole 76 is provided with a protrusion 76B. The protrusion 76B protrudes from the arc-shaped long hole 75N formed in the core 75 to the side where the inertia lever 77 is located. The inertia lever 77 can be swung in a direction to enter the swing locus of the protrusion 76B. As shown in FIG. 10A, the inertia lever 77 is normally urged by a spring 86 to a position where it does not enter the swinging locus of the protrusion 76B. When the impact is applied to the vehicle and the fixing device 7 is shaken, the inertial force S1 is relatively applied to the inertial lever 77 as shown in FIG. When the inertial force S1 exceeds the threshold value, the inertial lever 77 enters the swing locus of the protrusion 76B against the bias of the spring 86, as shown in FIG. As a result, even if the pole 76 tries to swing due to an impact, the inertia lever 77 contacts the protrusion 76B and fixes the pole 76. Thus, the inertia lever 77 prevents the locking projection 76A of the pole 76 from being locked with the locking step 72D due to the impact force.

  The detector 78 is installed below the arc-shaped long hole 75M of the core 75. As shown in FIG. 9C, when the notch 72A of the fork 72 is positioned at the far end of the entry path 71, the detector 78 comes into contact with the protrusion 72B of the fork 72 as shown in FIG. It is detected that 72 is in the full latch position. That is, the detector 78 detects that the fork 72 has fixed the pin portion 61A, and transmits it to a control device (not shown) of the vehicle.

  As shown in FIGS. 8 and 10, a buffer body 79 is disposed at the back end of the approach path 71. As shown in FIG. 10, when the pin portion 61 </ b> A enters the back end of the approach path 71, the shock absorber 79 comes into contact with the pin section 61 </ b> A and a collision sound is generated between the pin portion 61 </ b> A and the approach path 71. Suppress. Moreover, the buffer body 79 also suppresses rattling while the door 3 is closed.

  As shown in FIGS. 8 and 10, a buffer body 80 is disposed at the upper end of the long hole 75 </ b> N of the core 75. When the pole 76 is biased by the spring 84 and approaches the fork 72, the shock absorber 80 abuts against the protrusion 76B of the pole 76 and suppresses the occurrence of a collision sound.

  In the fixing device 7 having such a configuration, when the door 4 is in the open state, the fork 72 has the open end of the notch 72 </ b> A opened by the bias of the spring 83 as shown in FIG. 9A. The pin portion 61A of the striker 6 can be received.

  In the process of closing the door 4, as shown in FIG. 9B, when the pin portion 61A enters the approach path 71, the pin portion 61A enters the notch 72A of the fork 72 and pushes the fork 72 counterclockwise in the figure. Swing in the direction. When the door 4 is closed at a position where the locking projection 76A of the pole 76 exceeds the first locking step 72C, the fork 72 pushes the locking step 72C by the bias of the spring 83. Stops at the half-latch position locked to the portion 76A. That is, a so-called half-lock state is reached in which the door 4 stops before it is completely closed.

  When the door 4 is pushed to the fully closed position, as shown in FIG. 9C, the pin portion 61A reaches almost the far end of the approach path 71, and the second locking step 72D is locked. The fork 72 is swung to a position where it is locked to the portion 76A. The fork 72 stops at the full latch position where the locking step 72D is locked to the locking protrusion 76A by the bias of the spring 83. That is, a so-called full lock state in which the door 4 is completely closed is obtained.

  In this state, normally, as shown in FIG. 10A, the inertia lever 77 is urged counterclockwise in the drawing by the spring 86 and is at a position deviated from the swing locus of the protrusion 76B of the pole 76. When the impact is applied to the vehicle and the fixing device 7 is shaken, and the inertial force S1 exceeding the threshold is applied to the inertial lever 77, the inertial lever 77 resists the bias of the spring 86, as shown in FIG. Thus, it swings in a direction toward the swing locus of the protrusion 76B. Then, as shown in FIG. 10 (C), when the inertia lever 77 enters the swing locus of the protrusion 76B, the pole 76 to be swung by the impact force is fixed. That is, even if the pole 76 tries to swing due to an impact applied to the vehicle, the inertia lever 77 prevents the door 4 from being opened unexpectedly.

  On the other hand, when the door 4 is opened after the front door 3 is opened, the tip of the pole 76 is pulled down by the actuating device 10 and the open cable 11, and the fixing of the fork 72 by the pole 76 is released. . As a result, as shown in FIG. 9D, the fork 72 is urged by the spring 83 and swings clockwise toward the plane of FIG. 9 to feed the pin portion 61A out of the entry path 71. That is, the door 4 can be opened.

  When assembling the fixing device 7, as shown in FIG. 11, the fork 72 and the pole 76 are fitted and held in the hollow cylinder portions 75A and 75B in the core 75. Although not shown in FIG. 11, one end 11 </ b> A of the open cable 11 is connected to the tip of the pole 76, and the guide tube of the open cable 11 is held by the core 75. In addition, the inertia lever 77, the detector 78, and the buffer bodies 79 and 80 are held on the other surface of the core 75. Then, as shown in FIG. 11, the core 75 holding each functional component is inserted between the first plate portions 73 </ b> A and 73 </ b> B of the first base member 73. Thereafter, the fork pins 81 and the pole pins 82 are inserted into the core 75 and the base member 71, and the fork pins 81 and the pole pins 82 are caulked. The fixing device 7 assembled in this way is attached to the door 4 by an attachment portion 74 </ b> D provided on the second base member 74.

  In the locking device 5 of the embodiment, the first and second base members 73 and 74 constituting the base member 70 of the fixing device 7 are formed in an integral structure having a U-shape. For this reason, in this locking device 5, it is not necessary to fasten the first base member 73 itself, and it is not necessary to fasten the second base member 74 itself. It is sufficient if the first base member 73 and the second base member 74 are fastened. For this reason, in this lock apparatus 5, the pin-shaped connection member which connects the conventional plate-shaped member can be abbreviate | omitted, a number of parts can be decreased and an assembly man-hour can be reduced.

  Further, since both the first and second base members 73 and 74 have an integral structure, the connecting portion between the plate portion and the pin-like connecting member is not deformed by an impact force as in the prior art. Further, in the integrated first and second base members 73 and 74, an approach path 71 is formed through which the pin portion 61A of the striker 6 enters the one side overlapping portion 70A and the other side overlapping portion 70B. Thereby, in this locking device 5, the intensity | strength of the approach path 71 vicinity in the base member 70 can be ensured high, the deformation | transformation of the approach path 71 by an impact force can be suppressed, and high safety | security can be exhibited.

  Therefore, the locking device 5 of the embodiment can reduce the number of parts while ensuring strength, and can be easily assembled.

  Further, in this locking device 5, the fixing device 7 is provided with a mounting portion 74 </ b> D corresponding to the door 4 on the second base member 74, with the first base member 73 holding the functional parts therein. Thereby, in this locking device 5, just changing the shape of the 2nd base member 74 (especially the shape of mounting part 74D) according to the site | part or vehicle model which attaches the locking device 5, it is left-right like a left door and a right door. It can be easily installed in different mounting locations, etc., or in vehicle types with different mounting parts. As a result, in the lock device 5, a plurality of types can be easily manufactured by using the first base member 73 and the functional parts in common, so that the manufacturing cost can be reduced.

  Furthermore, in this locking device 5, since the approach path 71 is formed in the one side overlapping portion 70A and the other side overlapping portion 70B of both the base members 73 and 74 and the strength of the approach path 71 is improved, the striker 6 In a state where the pin portion 61A has entered the approach path 71, the locked state in which the fork 72 is engaged with the pin portion 61A can be reliably maintained.

  Further, in this locking device 5, the first and second base members 73 and 74 have an integrated structure in which the sheet metal is bent into a simple substantially U-shape, and these are adjacent to each other by overlapping them by changing the direction by approximately 90 degrees. It constitutes a strong box shape with almost four walls. As a result, in this locking device 5, the base member 70 becomes difficult to be deformed by the impact force acting from multiple directions, and excellent safety can be exhibited.

  Furthermore, in this locking device 5, in a locked state in which the fork 72 is engaged with the pin portion 61A of the striker 6 by the support portion 73J formed in the first connecting portion 73C, for example, the direction in which the door 3 is separated from the vehicle body due to a collision. When the force acts, after the pin portion 61A collides with the approach path 71, the support portion 73J of the first connecting portion 73C supports the second connecting portion 74C even if it tries to deform the second connecting portion 74C in the back direction. The deformation of the approach path 71 can be prevented.

  Further, in this locking device 5, the fork pin 81 that supports the fork 72 so as to swing and the pole pin 82 that supports the pole 76 so as to swing can be configured such that the one side overlapping portion 70A of the base members 73, 74 and the other The first base member 73 and the second base member 74 are fastened by being inserted through the side overlapping portion 70 </ b> B and the core 75. Thereby, in this locking device 5, the fork 72 is held by the core 75, and the fixing device 7 is easily assembled by inserting them into the one side overlapping portion 70A and the other side overlapping portion 70B of both base members 73 and 74. be able to. Further, the core 75 can support the fork 72 and the pole 76 so as to be swingable with respect to the base member 70 by inserting the fork pin 81 and the pole pin 82. Further, since the first plate portions 73A and 73B and the second plate portions 74A and 74B of both the base members 73 and 74 are fastened with the core 75 in between, the fork pins 81 and the pole pins 82 even if an impact or the like acts. In addition, the first plate portions 73A and 73B and the second plate portions 74A and 74B of the base members 73 and 74 are reinforced by the core 75 and are not easily deformed.

  Further, in the lock device 5, in the double doors 3 and 4, the rear door 4 is auxiliary opened after the front door 3 is opened. When the door 3 is in the closed state, the actuating device 10 invalidates the opening operation on the door 4 and maintains the closed state of the door 4. The door opening type doors 3 and 4 are locked and unlocked by a fixing device and an operating device provided on the door 3. That is, when the actuator 10 displaces the open cable 11, the pole 76 is always operated. Therefore, there is no problem even if the end portion 11 </ b> A of the open cable 11 is connected to the tip of the pole 76. Thereby, in this lock device 5, the ratchet lever of patent documents 1 can be abolished about fixing device 7, and the number of parts can be reduced.

  Further, in this locking device 5, as shown in FIG. 10, when an impact force is applied to the vehicle and the door 4 is about to open, an inertia force S1 exceeding a threshold value generated in the inertia lever 77 due to the impact causes a pole 76. Can be fixed. As a result, the fork 72 can be prevented from being opened, and the door 4 can be kept closed. Further, since the inertia lever 77 is also held by the core 75 together with the fork 72 and the pole 76, the fixing device 7 can be easily assembled.

  While the present invention has been described with reference to the embodiments, it is needless to say that the present invention is not limited to the above-described embodiments and can be appropriately modified and applied without departing from the spirit thereof.

  In the embodiment, the present invention is applied to the double doors in which two doors 3 and 4 are disposed in one opening 2, but the present invention is also applied to one in which one door is disposed in one opening. it can. In this case, one locking device can be provided not in the upper and lower ends of the door but in the middle portion in the vertical direction.

  Further, the present invention can be applied not only to the door on the side of the vehicle, but also to locking the rear door, locking the bonnet, fixing the folding seat, and further locking the door of the building or storage box.

  In the embodiment, the inner first base member 73 is provided with a first connecting portion 73 </ b> C located on the inner side of the approach path 71, and the outer second base member 74 is extended second in parallel with the approach path 71. Although the portion 74 </ b> C is provided, a connecting portion that extends substantially parallel to the entry path 71 may be provided on the inner base member, and a connection portion positioned on the inner side of the entry path 71 may be provided on the outer base member.

  In the embodiment, the base member 70 overlaps two plate materials of the first base member 73 and the second base member 74, but can be configured by overlapping three or more plate materials.

  In the embodiment, the approach path 71 is formed in the one-side overlapping section 70A and the other-side overlapping section 70B, but an approach path can be formed only in one of the one-side overlapping section 70A and the other-side overlapping section 70B.

  Moreover, in the Example, although the intermediate side of the bar | burr bent in the U shape in the striker 6 is made into the pin part 61A, one of two opposing sides among U shapes can also be made into a pin part.

  In the embodiment, the striker 6 is provided on the vehicle body 1 side and the fixing device 7 is provided on the door side. However, the striker 6 may be provided on the door side and the fixing device 7 may be provided on the vehicle body 1 side.

  The locking device of the present invention can be used for vehicle doors, building doors, and the like.

DESCRIPTION OF SYMBOLS 5 ... Locking device 6 ... Striker 61A ... Pin part 7 ... Fixing device 11 ... Open cable 70 ... Base member 70A, 70B ... Overlapping part (70A ... One side overlapping part, 70B ... Other side overlapping part)
71 ... Access path 72 ... Fork 73 ... First base member 73A, 73B ... First plate part 73C ... First connection part 73J ... Support part 74 ... Second base member 74A, 74B ... Second plate part 74C ... Second connection Part 75 ... Core 76 ... Fixing means (pole)
77 ... Inertia lever 81 ... Fork pin 82 ... Pole pin X72 ... Fork shaft center X76 ... Pole shaft center X77 ... Inertia shaft center D1 ... Axial direction D2 ... Moving direction

Claims (9)

A striker having a pin portion extending in the axial direction, and a fixing device for receiving the pin portion from a moving direction orthogonal to the axial direction and fixing the striker,
The fixing device is provided with a base member formed with an entry path through which the pin portion enters, and is swingably provided around the fork axis parallel to the axial direction in the base member, and the pin portion is provided in the entry path. In a locking device comprising a fork that engages with the pin portion in a state in which it has entered, and a fixing means provided on the base member and capable of fixing the fork,
The base member has a first base member and a second base member,
The first base member includes a first plate portion that faces each other in a pair, and a first connection portion that integrally connects both the first plate portions,
The second base member includes a second plate portion that faces each other in a pair, and a second connection portion that integrally connects both the second plate portions,
Both the first plate portion and both the second plate portions are overlapped including the moving direction to form a superimposed portion facing each other in a pair,
The locking device, wherein the approach path is formed in at least one of the overlapping portions. The superimposing portion includes a one-side overlapping portion including one of the first plate portions and one of the second plate portions, and a second-side overlapping portion including the other first plate portion and the other second plate portion. And consists of
The locking device according to claim 1, wherein the approach path is formed in the one-side overlapping portion and the other-side overlapping portion.   One of the first connection part and the second connection part is located next to the approach path, and the other of the first connection part and the second connection part is located on the back side of the approach path. The locking device according to 1 or 2. The second base member is provided outside the first base member;
The second connecting part extends parallel to the approach path, the first connecting part is located on the back side of the approach path;
The lock device according to claim 3, wherein a support portion capable of supporting a back end of the second connection portion is formed in the first connection portion.   The lock device according to any one of claims 1 to 4, wherein the fork is provided so as to be swingable by a fork pin that extends in the axial direction of the fork and is inserted through both the overlapping portions. The fixing device further includes a core inserted into the base member and capable of holding the fork,
The locking device according to claim 5, wherein the core is inserted through the fork pin. The fixing means is provided on the base member so as to be swingable around a pole axis parallel to the axial direction, and has a pole capable of fixing or opening the fork,
The pole extends in the pole axis direction and is provided so as to be swingable by a pole pin inserted through both the overlapping portions.
The lock device according to claim 6, wherein the core holds the pole and passes the pole pin.   The lock device according to claim 7, wherein the pole is provided with an open cable that swings the pole so that the fork is opened by an opening operation. The fixing means is provided so as to be swingable around an inertial axis parallel to the axial direction, and has an inertial lever capable of fixing the pole by an inertial force exceeding a threshold value,
The lock device according to claim 8, wherein the core holds the inertia lever.

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