JP5271626B2 - Static structure of door lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control structure of a door locking device capable of preventing the generation of disagreeable sound caused during vehicle running. <P>SOLUTION: This door locking device for holding a door being openable and closable for a vehicle body in the fully closed state is provided with a buffering member 23 provided in a striker entering groove in a base plate allowing a striker to enter a door locking position, colliding with the striker before the striker reaches the locking position, and being elastically compressed and a second plate for nipping and holding an intermediate frame 21 between the base plate and it. The buffering member 23 is held between the second plate and the intermediate frame 21 while it is elastically compressed. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a static earthquake structure of a door lock device that locks and unlocks a door provided on a vehicle.

There is a vehicle door lock device that locks a door at a closed position and releases the lock by an electric device including a drive source such as a motor (Patent Document 1). In this type of door lock device, when the door is closed, when the hook engaged with the striker on the vehicle body side is rotated to the striker holding position (strike retracting direction) by the electric drive mechanism, the ratchet lever (pole) is hooked. Engage with the (latch), and the rotation of the hook (latch) in the striker release direction is restricted and the locked state is established. When opening the door, if the ratchet lever is rotated in the disengagement (unlatching) direction from the hook by an electric drive mechanism or a manual operation system, the hook urged to rotate in the striker release direction rotates. The engagement with the striker is released and the door can be opened.
Japanese Unexamined Patent Publication No. 2006-200252

  In the conventional door lock device, when the door is closed, the striker comes into contact with the hook, the hook is rotated in the lock position direction, and the ratchet lever is engaged (engaged) with the hook when rotated to the lock position. The vibration at that time is transmitted to the pair of base plates that support both ends of the hook and ratchet lever shaft via the ratchet lever and the ratchet lever shaft, and the base plate vibrates, so that abnormal noise such as so-called chattering noise is generated. It has occurred.

  Conventionally, when the hook reaches the fully closed position by the striker, the cushion rubber that is pressed and elastically deformed by the striker presses the cover and the hook to prevent the cover from vibrating. However, when the hook is located at a position other than the fully closed position, the cushion rubber returns to its original shape, and the force for pressing the cover is reduced, so that vibration of the cover cannot be prevented.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a stationary structure for a door lock device that can prevent vibration of the door lock device.

According to another aspect of the present invention, there is provided a static lock structure for a door lock device in which a door that can be opened and closed with respect to a vehicle body is held in a fully closed state, and is fixed to a base plate fixed to one of the door and the vehicle body. A striker, a hook that is supported by the base plate so as to be pivotable to a striker holding position and a release position, and biased to the striker release position, and a pivot locus of an engagement portion provided on the hook on the base plate. A ratchet lever supported pivotally at a latch position that advances upward and an unlatching position retracted from the pivot locus of the engaging portion of the hook; and an entrance groove for the striker, the hook and the ratchet a frame for holding between the base plate of the lever, and a second plate for clamping the frame between the base plate, said first Comprising a cushioning member which is held between the plate and the frame, and the cushioning member includes a first cushion portion located between the second plate and the frame, located in the striker groove It has a 2nd cushion part, and the said 1st cushion part contact | abuts to said 2nd plate when assembled, It has the protrusion mainly elastically compressed, It is characterized by the above-mentioned.

  The ratchet lever is always urged to rotate from the unlatched position to the latch position by a spring member, and the buffer member is provided on the ratchet lever in the process of rotating the ratchet lever from the unlatched position to the latched position. It is preferable to provide a buffer protrusion that contacts the contact portion and holds the ratchet lever in the latch position. The impact when the ratchet lever is rotated to the latch position and engaged with the hook is alleviated, and the occurrence of abnormal noise can be prevented.

  According to the present invention described above, the buffer member that cushions the impact when the striker collides is the plate that holds the movable member such as the hook and the ratchet lever, and the buffer member and the frame that holds the movable member are the buffer member. Since the elastically compressed state is maintained, even if the vibration of the hook or ratchet lever is transmitted to the plate, the vibration of the plate is absorbed by the buffer member, so that the vibration is suppressed as a whole, and the generation of abnormal noise is also suppressed.

  The door lock device of the present invention will be described based on the illustrated embodiment. A door lock (door closure) device 10 shown in the figure is attached to the rear door 110 side (between the outer panel 111 and the inner panel 112), and supports the rear door 110 so that it can be opened and closed (frame 101). Is provided with a striker S (FIGS. 10 and 13) that engages with and disengages from the door lock device 10. It should be noted that the positional relationship between the door lock device 10 and the striker S can be reversed. In FIG. 13, reference numeral 102 is a bumper, reference numeral 113 is a switch for unlocking the door lock device 10 from outside the vehicle, and reference numeral 114 is a connection between the door lock device 10 and a control device mounted on the vehicle body 100 side. Cable.

  As shown in FIGS. 1, 2, and 3, the door lock device 10 is electrically operated as a latch mechanism 10 </ b> R that engages with the striker S, and a latch release mechanism that releases the engagement between the latch mechanism 10 </ b> R and the striker S. The latch mechanism 10R and the electric device 10P are connected to each other. 2 is an exploded perspective view of the electric device 10P, and FIG. 3 is an exploded perspective view of the latch mechanism 10R.

"Latch mechanism 10R"
The latch mechanism 10R has a base plate 11 fixedly attached to the rear door, and is fixed to the base plate 11 with the intermediate frame 21 sandwiched therebetween, and is connected to the electric device 10P as a second plate. A plate 31 is provided. In this embodiment, the base plate 11 and the upper plate 31 are made of metal, and the intermediate frame 21 is made of synthetic resin.

  In the base plate 11, a striker entry groove 11a into which the striker S can enter is formed, and the shaft pin 12 and the shaft pin 13 are inserted into the shaft holes 11b and 11c located across the striker entry groove 11a. The shaft pin 12 is inserted into a shaft hole 14 a formed in the hook 14, and the hook 14 is supported to be rotatable about the shaft pin 12. The shaft pin 13 is inserted into a shaft hole 15 a formed in the ratchet lever 15, and the ratchet lever 15 is supported to be rotatable about the shaft pin 13.

  As shown in FIGS. 3 and 4, the hook 14 includes a striker holding groove 14b formed in a substantially radial direction with the shaft hole 14a as a center. The striker holding groove 14b is formed between the pair of first leg 14c and second leg 14d. A ratchet lever engaging step (engaging portion) 14e is formed near the tip of the second leg portion 14d on the side facing the striker holding groove 14b. A buffer arch portion 14g that restricts the striker holding groove 14b of the first leg portion 14c and that is bent when the striker S collides with the surface where the striker S collides when the door is closed after being opened is provided to buffer the impact. Is formed.

  The hook 14 can be rotated between a lock position (striker holding position) shown in FIG. 10 and a lock release position (striker release position) shown in FIGS. 11 and 12, and is unlocked by the torsion spring 16. It is urged to rotate toward the release position (counterclockwise in FIGS. 10 to 12). The torsion spring 16 includes a pair of spring ends including a coil portion that surrounds the shaft pin 12 and end portions that engage (contact) the spring hooking protrusion 14 h of the hook 14 and the intermediate frame 21.

  As shown in FIG. 5, the ratchet lever 15 is formed to be swingable about a shaft hole 15a, and the tip end surface engages with the ratchet lever engaging step portion 14e to rotate the hook 14 in the striker release position direction. In a direction to release the engagement with the hook engaging projection 15b that is regulated and held at the striker holding position (locked state) and the side surface is pressed by the release protrusion 45d of the open lever 45 and the ratchet lever engagement step 14e. An open protrusion 15c that is urged to rotate is provided.

  The ratchet lever 15 has a shaft hole 15 a that is swingably fitted to the shaft pin 13, and the hook engagement protrusion 15 b is moved around the shaft center of the shaft hole 15 a to move the ratchet lever engagement step portion 14 e of the hook 14. The latch position (FIG. 10) that is positioned above (can be engaged with the ratchet lever engaging step 14e), and the hook engaging protrusion 15b is retracted from the movement locus of the ratchet lever engaging step 14e (the ratchet lever engagement). It is formed so as to be rotatable between unlatched positions (FIGS. 11 and 12) that do not engage with the stepped portion 14e, and is moved from the unlatched position to the latched position direction (FIGS. 10 to 10) by a torsion spring (latch urging means) 17. 12 in the clockwise direction). The torsion spring 17 includes a coil portion that surrounds the shaft pin 13, and a pair of spring end portions that engage (contact) the spring hooking protrusion 15 d of the ratchet lever 15 and the intermediate frame 21.

  The intermediate frame 21 is formed with a striker entry groove 21a corresponding to the striker entry groove 11a of the base plate 11 into which the striker S can enter, and shaft holes 21b and 21c are formed at positions facing the shaft holes 11b and 11c. (FIG. 6), the shaft pins 12 and 13 are inserted into the shaft holes 21b and 21c. The intermediate frame 21 is formed with a space for rotatably accommodating the hook 14 and the ratchet lever 15 between the base plate 11.

  Further, a spring hooking protrusion 14h of the ratchet lever 15 hook 14 is inserted into the intermediate frame 21, and an arc hole 21d that allows the hook 14 to swing and restricts the rotation range, and a spring hooking protrusion 15d of the ratchet lever 15 are provided. Is inserted, and an arcuate hole 21e that allows the ratchet lever 15 to swing and restricts the rotation range is formed.

  The torsion springs 16 and 17 are disposed in the space between the intermediate frame 21 and the upper plate 31 (FIG. 10). One end of the torsion spring 16 is engaged with the spring hooking protrusion 14h of the hook 14, and the other end abuts against the inner wall of the intermediate frame 21 to turn and bias the hook 14 in the unlocking direction. . One end portion of the torsion spring 17 engages with the spring hooking protrusion 15d of the ratchet lever 15, and the other end portion engages with the inner wall of the intermediate frame 21 to urge the ratchet lever 15 in the unlatching direction. ing.

  One side wall that regulates the striker entry groove 21a of the intermediate frame 21 is regulated by a leaf spring portion 21f that extends in the back direction from the striker advance side. The leaf spring portion 21f is bent in a direction that narrows the width of the striker entry groove 21a. When the striker S enters the striker entry groove 21a, the striker S is slidably contacted with the other side wall of the striker entry groove 21a. Pinch between.

  At the deepest portion of the striker entry groove 21a, a cushion housing recess 21g is formed that extends in the lateral direction perpendicular to the entry / detachment direction of the striker S. A cushion rubber 23 as a buffer member that absorbs an impact by coming into contact with the striker S that has entered the striker entry groove 21a is inserted into the cushion housing recess 21g.

  The cushion rubber 23 includes a first cushion portion 23a fitted into the cushion housing recess 21g, and a second cushion portion extending from the first cushion portion 23a into the striker entry groove 21a and having a tip portion serving as a contact surface of the striker S. 23b, a third cushion portion 23c extending from a first cushion portion 23a into a play space 21h provided on the opposite side of the striker entry groove 21a, allowing the leaf spring portion 21f to bend, and an intermediate frame 21 The hook portion 23d is engaged with the formed cushion rubber engagement hole 21i (FIGS. 7 and 8).

When the ratchet lever 15 rotates in the latch position direction by the rotational biasing force of the torsion spring 17, the hook portion 23d collides with the spring hooking projection 15d and absorbs the impact. By this shock absorption, the hook 14 rotates to the lock position (striker holding position) and the ratchet lever 15 rotates to the latch position when the door is closed. Here, the hook portion 23d constitutes a buffer protrusion ratchet lever 15 to alleviate the impact when stopping rotation in the latched position, spring hook 15d constitutes an abutment region against the slow collision portion .

  The ratchet lever 15 is once rotated in the opening direction when the door is opened. After the hook 14 is rotated in the unlock position direction, the ratchet lever 15 is rotated in the latch position direction by the urging force of the torsion spring 17. At this time, the spring hooking projection 15d collides with the hook portion 23d and stops. As described above, when the ratchet lever 15 rotates and stops in the direction of the latch position, the spring hooking projection 15d collides with the hook portion 23d and stops, so that the impact at the time of collision and stop is absorbed and noise is generated. There is nothing to do.

The cushion rubber 23 has a plurality (two rows) of protrusions 23e protruding on the upper surface. The protrusions 23e are formed so as to abut against the upper plate 31 and be compressed when assembled. That is, when the cushion rubber 23 is housed in the cushion housing recess 21 g of the intermediate frame 21 and is further disposed between the base plate 11 and the upper plate 31 and assembled, the first cushion portion 23 a and the ridge 23 e are placed on the upper plate 31. And are compressed by the intermediate frame 21 and elastically compressed. The upper plate 31 and the intermediate frame 21 are fixed without rattling by the elastic restoring force of the protrusions 23e and the first cushion portion 23a which are mainly elastically compressed.
The material of the cushion rubber 23 only needs to have elasticity, and a material having higher shock and vibration absorbability is preferable.

  An upper plate 31 is fixed to the upper part of the intermediate frame 21 so as to cover the cushion rubber 23 and the torsion springs 16 and 17. Ratchet lever 15 The upper plate 31 is also provided with striker entry grooves 31a similar to the striker entry grooves 11a and 21a of the base plate 11 and the intermediate frame 21, and further the shaft holes 11b and 11c of the base plate 11 and the intermediate frame 21. Shaft holes 31b and 31c are formed in which the tip portions of the shaft pins 12 and 13 inserted through the shaft holes 21b and 11c are fitted (FIGS. 1 and 3). The tips of the shaft pins 11 and 13 passing through the shaft holes 11b and 21b and the shaft holes 11c and 21c are inserted into these shaft holes 31b and 31c, and are crushed and fixed by caulking or the like.

  Further, the upper plate 31 is formed with a bending protrusion 31d for connecting to the electric device 10P and a screw insertion hole 31e in the bending protrusion 31d. The upper plate 31 is attached to the case 41 and the cover 51 by a screw 33 that passes through the screw insertion hole 31e and further passes through the insertion hole 51a of the cover 51 and is screwed into the screw hole formed in the boss 41a of the case 41. Fixed. The bent protrusion 31d is inserted and fixed in a connecting groove 51b formed in the cover 51. The case 41 and the cover 51 are usually made of synthetic resin.

"Electric device 10P"
In the electric device 10P, a motor 42 as an electric member is housed and fixed in a case 41 as a structure. A worm 42 a is attached to the shaft of the motor 42. The worm 42 a meshes with the worm wheel 43. In the worm wheel 43, a rotation shaft 43 a is rotatably inserted into a shaft hole 41 b formed in the case 41. The rotating shaft 43 a extends from both surfaces of the worm wheel 43. An eccentric cam 43 b is projected from the front side of the worm wheel 43. A cam sliding contact end 45b formed at the tip of the open lever 45 is in sliding contact with the outer peripheral surface of the eccentric cam 43b.

  In the case 41, a boss 41d projects from the worm wheel 43 near the center on the side of the connecting portion with the latch mechanism 10R. The boss 41d is fitted with the shaft hole 45a of the open lever 45, and the open lever 45 is pivotally supported. At one end portion of the open lever 45, a cam contact end portion 45b slidably contacting the eccentric cam 43b and a manually operated bending piece 45c for operating the open lever 45 from the inside of the vehicle are formed. The other end of the open lever 45 is formed with a release protrusion 45d that contacts the open protrusion 15c of the ratchet lever 15 and rotates the ratchet lever 15 in the striker release direction. The open lever 45 is urged by a torsion spring 46 so that the open protrusion 15c rotates the ratchet lever 15 in the striker release direction. The torsion spring 46 includes a coil portion surrounding the boss 41 c and a pair of spring end portions including end portions that engage with the open lever 45 and the case 41.

  Further, the case 41 is provided with first and second courtesy switch contact pieces 47 and 48 constituting a rear door courtesy switch. The first courtesy switch contact piece 47 extends to a position where the end portion 47a of the spring portion 47b can contact the detection portion 14f of the hook 14. The end portion 47 a of the first courtesy switch contact piece 47 is pressed by the detection portion 14 f when the hook 14 is in the striker holding position, the spring portion 47 b is bent, and the spring portion 47 b is the contact point of the second courtesy switch contact piece 48. It is formed so as to be separated from 48a. Then, when the hook 14 rotates from the striker holding position toward the striker release position, the spring 47b returns to the restoring direction according to the rotation of the hook 14 while the end 47a presses the detection unit 14f, and the spring 47b is moved to the second courtesy. It contacts the contact 48a of the switch contact piece 48 and maintains the contact state at the striker release position. On the other hand, when the hook 14 is rotated from the striker release position toward the striker holding position, the end portion 47a of the first courtesy switch contact piece 47 is pressed against the detection portion 14f, the spring portion 47b is bent, and the spring portion 47b is contacted in the middle. It is separated from 48a and completely separated at the striker holding position. The first and second courtesy switch contact pieces 47 and 48 are connected to a rear door opening detection circuit (not shown), and the first and second courtesy switch contact pieces 47 and 48 are connected to and separated from the rear door (hook). 14) Open is detected. 1, 2, and 9, reference numeral 41 i denotes a connector that connects the electric device 10 </ b> P and a control unit mounted on the vehicle.

  A cover 51 is fitted and fixed to the case 41. In the cover 51, a hole 51a for fixing the upper plate 31 and the case 41 with the screw 33, a connecting groove 51b in which the bent protrusion 31d of the upper plate 31 fits, and a manually operated bent piece 45c of the open lever 45 protrude. An arc-shaped elongated hole 51c that allows the open lever 45 to be latched and unlatched is formed. The hole 51a is formed at a position approximately in the center of the connecting groove 51b and coincides with the shaft hole 41b when the cover 51 is fitted into the case.

  Engagement holes 41h are formed at a plurality of locations on the outer peripheral wall 41e of the case 41, and fitting protrusions 51h are provided on the fitting wall 51g of the cover 51 at positions corresponding to the engagement holes 41h. The case 41 and the cover 51 are fitted in close contact by engagement with the engagement holes 41h and the fitting protrusions 51h.

  Further, the case 41 is formed with a bowl-like or bowl-shaped rib 51d so as to cover the upper side of the arc-shaped elongated hole 51c, and a bowl-like or bowl-like rib 51e so as to cover the upper side of the connecting groove 51b. ing. In a state where the rear door to which the door lock device 10 is mounted is completely closed, the rib 51d that covers the arc-shaped elongated hole 51c has water that does not flow through the rib 51d even if water flows along the surface of the cover 51. It gathers in the boundary part with the cover 51, flows downward along this boundary part, and is formed so that it may be dripped from the outer side rather than the edge part of the circular arc shaped long hole 51c. Further, the lower rib 51e receives water dropped by being guided to the upper rib 51d and water flowing from the outside of the rib 51d along the surface of the case 41 and guides it to the outside of the upper plate 31 to latch. It is formed so as to be dropped outside the mechanism 10R.

As described above, since the door lock device of the present embodiment is provided with the bowl-shaped or bowl-shaped ribs 51d and 51e on the surface of the cover 51, even if water enters the door and drops on the surface of the cover 51, Since the ribs 51d and 51e prevent the arc-shaped long hole 51c from entering the electric device 10P and the latch mechanism 10R, the occurrence of rust, electric leakage, and malfunction of the movable part can be prevented.
The protruding amount and shape of the ribs 51d and 51e from the cover 51 are set according to the shape of the cover 51, the position and shape of the arc-shaped elongated hole 51c, and the shape of the rear door to which the door lock device 10 is mounted. .

  Next, the operation of the door lock device 10 will be described with reference to FIGS. 9 is a front view showing the locked state with the electric device 10P removed, FIG. 10 to FIG. 12 are the latch mechanism 10R with the upper plate 31 removed, FIG. 10 is the locked state, and FIG. FIG. 12 is a plan view showing an unlocked state.

In the locked state shown in FIGS. 9 and 10, the striker S is moved between the second cushion portion 23b (and the second cushion portion 23b) between the side surface of the striker holding groove 14b of the hook 14 on the first leg portion 14c side and the second cushion portion 23b. The first cushion portion 23a) is held in a compressed state. In the hook 14, the hook engaging protrusion 15 b of the ratchet lever 15 is engaged with the ratchet lever engaging step portion 14 e, and the hook 14 is prevented from rotating in the striker releasing direction.
The first courtesy switch contact piece 47 is separated from the contact 48 a of the second courtesy switch contact piece 48 by the end portion 47 a being pushed by the detection portion 14 f and the spring portion 47 b being bent.

  When the motor 42 is rotated in the unlocking direction from this locked state, the worm wheel 43 is rotated clockwise in FIG. 9, and the cam contact end portion 45b of the open lever 45 is pushed by the eccentric cam 43b, and clockwise. To turn. Therefore, the release protrusion 45d of the open lever 45 presses the open protrusion 15c of the ratchet lever 15 in the open (unlatch, counterclockwise) direction, and rotates the ratchet lever 15 in the open direction. When the ratchet lever 15 is rotated in the open direction, the hook engaging projection 15b of the ratchet lever 15 is disengaged from the ratchet lever engaging step portion 14e of the hook 14 to make the hook 14 in a free state (unlatched). Then, the striker S is elastically biased in the open direction by the first and second cushion portions 23a and 23b, and the hook 14 is rotationally biased in the lock (latch) releasing direction by the torsion spring 16. Thus, the hook 14 rotates in the opening direction, and the striker S comes out of the striker holding groove 14b (see FIG. 11). As a result, the door lock device 10 is unlocked, and the rear door can be freely opened.

  The motor 42 further rotates in the unlocking direction and stops when the worm wheel 43 makes one rotation. When the worm wheel 43 rotates once, the open lever 45 returns to the same position as in the locked state (FIG. 12). However, since the hook 14 is rotated to the open position and stopped, the ratchet lever 15 is rotated in the locking direction by the rotation urging force of the torsion spring 17, and the hook engaging protrusion 15 b is the second leg of the hook 14. It is in an unlocked state where it abuts on the outer peripheral surface of the portion 14d and stops. Further, in this unlocked state, the hook 14 is separated from the end 47 a of the first courtesy switch contact piece 47, so that the spring portion 47 b is in contact with the contact 48 a of the second courtesy switch contact piece 48.

  When the rear door is closed in this unlocked state, the striker S first collides with the buffer arch portion 14g of the hook 14 and enters the striker holding groove 14b while rotating the hook 14 in the locking direction. Proceed along 21a. The hook 14 rotates in the locking direction while the outer peripheral surface of the second leg portion 14 d is in sliding contact with the hook engaging protrusion 15 b of the ratchet lever 15.

  When the striker S collides with the second cushion portion 23b and progresses until the second cushion portion 23b and the first cushion portion 23a are compressed, the hook engaging protrusion 15b of the ratchet lever 15 becomes the ratchet lever engaging step portion 14e of the hook 14. It rotates to the position where it engages. On the other hand, the striker S collides with the second cushion part 23b, and elastically compresses and stops the second cushion part 23b and the first cushion part 23b, and enters the striker by the elastic restoring force of the first and second cushion parts 23a and 23b. The hook 14 is pushed in the direction of exiting the groove 21a. However, since the ratchet lever engaging step 14e is engaged with the hook engaging projection 15b of the ratchet lever 15 and the rotation in the unlocking direction is prevented, the striker S is Held in that position. That is, the locked state shown in FIG. 10 is obtained.

  Further, in this locked state, the first courtesy switch contact piece 47 is separated from the contact 48 a of the second courtesy switch contact piece 48 by the end portion 47 a being pushed by the detection portion 14 f and the spring portion 47 b being bent.

  As described above, according to the illustrated embodiment, the vibration of the hook 14 that is a movable part is transmitted to the base plate 11 and the upper plate 31 via the ratchet lever 15 and the shaft pins 16 and 17, but the intermediate frame 21 and the upper plate 31. Since the cushion rubber 23 is fixed in a compressed state, the vibration with the ratchet lever 15 as the epicenter is absorbed by the cushion rubber 23 and attenuated and transmitted to the upper plate 31, so that the upper plate 31 hardly vibrates. In addition, it is possible to prevent the generation of abnormal noise such as a tingling sound from the door lock device 10. Further, according to the embodiment of the present invention, the cushion rubber 23 that cushions the impact of the striker S when the door is closed also serves as an abnormal noise prevention member, so that no new parts are required and the assembly process does not increase. Cost can be reduced.

  Although the present invention has been described based on the illustrated embodiments, the present invention is not limited to these embodiments. For example, although the illustrated embodiment is applied to a so-called minivan rear door lock device, the present invention can also be applied to vehicle types other than minivans and doors other than rear doors.

It is a perspective view of an embodiment of a door lock device to which the present invention is applied. It is a disassembled perspective view of the electric device of the door lock device. It is a disassembled perspective view of the latch mechanism of the door lock device. It is the top view which showed the hook of the door lock apparatus alone. It is the top view which showed the ratchet lever of the door lock device alone. (A) which showed the intermediate frame of the door lock device alone is a top view, and (B) is a top view which mounts cushion rubber. It is the top view which showed the cushion rubber of the door lock device alone. It is sectional drawing which shows the mounting state of the cushion rubber of the latch mechanism of the door lock apparatus along the cutting line VIII-VIII of FIG. It is the perspective view which removed the cover and showed the electric device of the door lock device. It is the perspective view which removed the upper plate and showed the locked state of the latch mechanism of the door lock device. It is the perspective view which removed the lock release operation state of the latch mechanism of the door lock device, and removed the upper plate. It is the perspective view which removed the upper plate of the unlocking state of the latch mechanism of the door lock apparatus. It is a side view which shows a mode that the door lock apparatus was mounted in the rear door of a motor vehicle.

Explanation of symbols

S striker 10 door lock device 10P electric device 10R latch mechanism 11 base plate 11a striker entry groove 11b 11c shaft hole 12 shaft pin 13 shaft pin 14 hook 14a shaft hole 14b striker holding groove 14c first leg portion 14d second leg portion 14e ratchet lever Engagement step portion 14f Detection portion 14g Buffer arch portion 14h Spring hook protrusion 15 Ratchet lever 15a Shaft hole 15b Hook engagement protrusion 15c Open protrusion 15d Spring hook protrusion (contact portion)
16 Torsion spring 17 Torsion spring 21 Intermediate frame (frame)
21a Strike entry groove 21b 21c Shaft hole 21d 21e Arc hole 21f Leaf spring part 21g Cushion storage recess 21h Play space 21i Cushion rubber engagement hole 23 Cushion rubber (buffer member)
23a First cushion portion 23b Second cushion portion 23c Third cushion portion 23d Hook portion (buffer projection)
23e ridge (protrusion)
31 Upper plate (second plate)
31a Strike entry groove 31b 31c Shaft hole 31d Bending protrusion 33 Screw 41 Case 41a Boss 41b Shaft hole 41c Boss 41d Boss 41e Outer peripheral wall 41h Engagement hole 42 Motor 42a Worm 43 Worm wheel 43a Rotating shaft 43b Eccentric cam 45 Open lever 45a Shaft hole 45b Cam slide contact end 45c Manual operation bent piece 45d Release protrusion 46 Torsion spring 47 First courtesy switch contact piece 47a End 47b Spring part 48 Second courtesy switch contact piece 48a Contact 51 Cover 51a Hole 51b Connection groove 51c Arc-shaped long hole 51d 51e rib 51g fitting wall 51h protrusion

Claims (2)

In a door lock device that holds a door that can be opened and closed with respect to a vehicle body in a fully closed state,
A base plate fixed to one of the door and the vehicle body and a striker fixed to the other;
A hook that is rotatably supported by the striker holding position and the release position and urged to the striker release position by the base plate,
A ratchet that is rotatably supported on the base plate at a latch position that advances on a rotation locus of an engagement portion provided on the hook and an unlatching position that retreats from the rotation locus of the engagement portion of the hook. Lever,
A frame having an entrance groove for the striker, and holding the hook and ratchet lever between the base plate ;
A second plate for sandwiching the frame with the base plate ;
A cushioning member which is held between the second plate and the frame,
With
The buffer member is
Having a first cushion portion located between the second plate and the frame; and a second cushion portion located in the striker entry groove; and
The first cushion portion has a protrusion that abuts against the second plate when assembled and is mainly elastically compressed, and has a static vibration structure for a door lock device.   2. The static seismic structure for a door lock device according to claim 1, wherein the ratchet lever is always urged to rotate from the unlatched position toward the latch position by a spring member, and the buffer member has the ratchet lever moved from the unlatched position. A static seismic structure of a door lock device including a buffer protrusion that contacts a contact portion provided on a ratchet lever in the process of rotating to a latch position and holds the ratchet lever at the latch position.

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