WO2011102057A1 - 自動車用ドアラッチ装置 - Google Patents
自動車用ドアラッチ装置 Download PDFInfo
- Publication number
- WO2011102057A1 WO2011102057A1 PCT/JP2010/073332 JP2010073332W WO2011102057A1 WO 2011102057 A1 WO2011102057 A1 WO 2011102057A1 JP 2010073332 W JP2010073332 W JP 2010073332W WO 2011102057 A1 WO2011102057 A1 WO 2011102057A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pole
- support shaft
- base plate
- latch device
- latch
- Prior art date
Links
- 230000037431 insertion Effects 0.000 claims description 25
- 238000003780 insertion Methods 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 10
- 238000007599 discharging Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 210000000078 claw Anatomy 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910000639 Spring steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/20—Bolts or detents
- E05B85/24—Bolts rotating about an axis
- E05B85/26—Cooperation between bolts and detents
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/04—Spring arrangements in locks
- E05B2015/0403—Wound springs
- E05B2015/0406—Wound springs wound in a cylindrical shape
- E05B2015/041—Wound springs wound in a cylindrical shape loaded perpendicular to cylinder axis
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/34—Protection against weather or dirt, e.g. against water ingress
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/02—Lock casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/23—Vehicle door latches
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1044—Multiple head
- Y10T292/1045—Operating means
- Y10T292/1047—Closure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1075—Operating means
- Y10T292/1082—Motor
Definitions
- the present invention relates to an automotive door latch device.
- a latch adapted to be rotated by being pushed by a striker on the vehicle body side is accommodated in an accommodating portion formed on one side of the body, and the accommodating portion of the body is integrated.
- a base plate that is arranged to cover the side and is adapted to be assembled to the door is rotatably supported via a first support shaft and is biased toward its return position by a latch return spring.
- a pole that engages with the latch and prevents rotation in the door opening direction is housed in the body housing portion below the latch and is rotatable on the base plate via a second support shaft.
- a door latch device for an automobile that is urged toward its return position by a pole return spring. It is shown in.
- the pole return spring is not disposed on the extension of the shaft of the pole, and the latch and the housing of the body that accommodates the pole below the pole are accommodated. It is arranged in the part (space). For this reason, it is possible to ensure the freedom degree of arrangement
- the pole return spring is disposed in the lower part of the vicinity of the pole in the body accommodating portion (space) for accommodating the latch and the pole. . For this reason, dust or the like that has entered the body housing (space) housing the latch and the pole may be prevented from being discharged out of the body by the pole return spring, and may accumulate in the housing (space) described above. There is.
- the present invention has been made to solve the above-described problems, and includes a base plate adapted to be assembled to a door, and a housing portion formed on one side, and the housing portion is located on one side by the base plate.
- a latch return spring that is housed in the housing portion of the body and biases the latch toward its return position, and is housed in the housing portion of the body below the latch and is secondly attached to the base plate.
- a pole that is rotatably supported via a support shaft and engages with the latch to prevent rotation in the door opening direction; and the pole is directed to its return position.
- a pole return spring that urges the body, and the housing portion of the body opens downward below the pole, and the pole return spring extends downward from the rotation support portion of the pole. It is assembled to a spring mounting part formed on the other side of the body at a distant position, and the pole side end part enters the housing part of the body through a through hole provided in the body and enters the pole.
- the pole return spring has a coil portion at an intermediate portion, a pole side end portion at one end portion, and a body side end portion at the other end portion, and is formed on the body.
- the spring mounting portion may be provided with a holding portion that holds the coil portion and a locking portion that engages with the body-side end portion.
- the through hole is formed when the pole rotates more than the range in which the pole side end of the pole return spring moves when the pole rotates to allow the latch to rotate. It is also possible to have a long hole shape that allows the pole-side end portion to further move in the moving direction in which the pole-side end portion moves.
- the second support shaft that rotatably supports the pole is made of metal, has an insertion hole that can be inserted into the second support shaft, and the second support shaft.
- the lift lever assembled to the pole so as to be rotatable integrally with the pole is made of metal, the body is made of resin, extends along the second support shaft, and the insertion hole of the lift lever It is also possible to have an extending part that is inserted between the lift lever and the second support shaft and that rotatably supports the lift lever.
- the extending portion may be formed in a cylindrical shape and surround the entire circumference of the support shaft.
- the base plate supports one end side of the second support shaft in a non-rotatable manner
- the sub base plate assembled to the other side of the body and positioned by the extending portion is the second base plate.
- the other end of the support shaft is supported in a non-rotatable manner
- the pole and the lift lever are rotatably supported by the second support shaft
- the body is circumferentially extended from the base plate side of the extending portion.
- the lift lever can be disposed between the support portion of the body and the sub-base plate.
- the lift lever has a convex portion that is bent toward the pole and penetrates the body, and the pole has a concave portion that can be fitted to the convex portion, and the body Has an opening that allows penetration and rotation of the protrusion, and the protrusion penetrates the opening and fits into the recess so that the lift lever and the pole can rotate integrally. It is also possible.
- the pole return spring is assembled to the spring mounting part formed on the other side of the body at a position away from the rotation support part of the pole, the pole return spring is attached to the rotation support part (shaft part) of the pole. ), The degree of freedom of arrangement of the pole return springs can be increased.
- the pole return spring has a coil portion at an intermediate portion, a body side end portion at one end portion, and a pole side end portion at the other end portion.
- the spring mounting portion formed on the base plate is provided with a holding portion for holding the coil portion and a locking portion for engaging with the body side end portion, the components excluding the pole return spring In the sub-assembly state combining (body, base plate, latch, pole, latch support shaft, pole support shaft, latch return spring, etc.), insert the pole side end of the pole return spring through the through hole in the body.
- the pole side end of the pole return spring can be easily assembled to the body. Assembling performance is improved.
- the second support shaft is made of metal
- the lift lever assembled so as to rotate integrally with the pole is made of metal
- the body is made of resin.
- the extended portion of the resin body can have the function of a bush (resin bearing), and without adding any parts, the lift lever and the second support shaft
- the metal contact can be eliminated. For this reason, generation
- operating can be prevented.
- the extending portion is formed in a cylindrical shape and surrounds the entire circumference of the support shaft, it is possible to more preferably prevent the generation of noise due to the metal contact.
- the base plate supports the one end side of the second support shaft in a non-rotatable manner
- the sub base plate assembled to the other side of the body and positioned by the extending portion serves as the second support.
- the other end of the shaft is supported in a non-rotatable manner
- the pole and the lift lever are rotatably supported by the second support shaft
- the body has a support portion that extends in the circumferential direction from the base plate side of the extension portion
- the pole and the lift lever so as to be integrally rotatable by fitting a part of the pole and a part of the lift lever in the axial direction. Therefore, for example, a pole and a second support shaft are integrated, a lift lever is fixed to the second support shaft by caulking or the like, and the second support shaft is rotatably connected to the base plate and the sub base plate. It is possible to improve the manufacturability as compared with the case of doing so.
- the lift lever is bent toward the pole and has a convex portion that penetrates the body, the pole has a concave portion that can be fitted to the convex portion, and the body has a convex portion.
- the lift lever and the pole can be rotated together by having an opening that allows penetration and rotation, and the protrusion penetrates the opening and fits into the recess, the lift It is possible to connect the pole and the lift lever so as to be integrally rotatable without providing a separate component such as a connecting pin on the lever, and it is possible to configure the lever simply and inexpensively.
- the pole has an engaging protrusion
- the stopper when the stopper is attached to the body so as to be disposed above the engaging protrusion, the engaging protrusion of the pole is
- the return position of the pole is defined by contacting the lower surface of the stopper. For this reason, dust or the like hardly accumulates between the engaging protrusion of the pole and the stopper, and it is possible to prevent the return position of the pole from being changed by dust or the like.
- the function of preventing the rotation of the door in the door opening direction) can be obtained stably over a long period of time.
- FIG. 1 is a perspective view showing an embodiment (first embodiment) of an automotive door latch device according to the present invention together with a door.
- FIG. 2 is a front view of the automobile door latch device shown in FIG. 1 when the latch is in the door closed state.
- FIG. 3 is a rear view of the automotive door latch device shown in FIG.
- FIG. 4 is a bottom view of the automotive door latch device shown in FIG.
- FIG. 5 is a front view of a state in which a base plate is removed from the automotive door latch device shown in FIG.
- FIG. 6 is a perspective view of a single body of the vehicle door latch device shown in FIGS.
- FIG. 7 is a rear view of the single body shown in FIG.
- FIG. 8 is a side view of the single body shown in FIG. 7 as viewed from the right side.
- FIG. 9 is a side view of the single body shown in FIG. 7 as viewed from the left side.
- FIG. 10 is a bottom view of the body shown in FIG. 7 as viewed from below.
- FIG. 11 is a front view when the latch in the automotive door latch device shown in FIG. 2 is in a half-door state.
- FIG. 12 is a front view of a state in which a base plate is removed from the automobile door latch device shown in FIG.
- FIG. 13 is a front view when the latch in the automotive door latch device shown in FIG. 2 is in the door open state.
- FIG. 14 is a front view of the automobile door latch device shown in FIG. 13 with the base plate removed.
- FIG. 15 is a rear view corresponding to FIG. 3 and showing another embodiment (second embodiment) of the automotive door latch device according to the present invention.
- 16 is a cut end view taken along line XX of FIG.
- FIGS. 1 to 5 show an embodiment (first embodiment) of an automotive door latch device according to the present invention.
- the automotive door latch device 10 of this embodiment is a door 20 ( 1 (see the phantom line in FIG. 1), which is mounted together with a door lock device (not shown), and includes a resin body 11, a steel plate base plate 12, a steel plate sub-base plate 13, and a metal latch. 14, a latch return spring S1 made of spring steel, a metal pole 15, a pole return spring S2 made of spring steel, a rubber stopper 16 and a lift lever 17 made of steel plate (metal).
- the body 11 accommodates the latch 14 and the pole 15 on one side of the vertical wall W interposed between the base plate 12 and the sub base plate 13 (the side on which the base plate 12 is assembled). Are formed, and a spring mounting portion 11b for assembling the pole return spring S2 is formed on the other side of the vertical wall W (the side on which the sub-base plate 13 is assembled).
- the body 11 has a striker insertion groove 11c, two support shaft insertion holes 11d and 11e, three bolt insertion holes 11f, 11g, and 11h, a stopper mounting portion 11i, a notch 11j, and a through hole.
- a hole 11k and a protrusion 11m are formed.
- the upper accommodating portion 11a1 accommodates the latch 14 so as to be rotatable by a predetermined amount, and a protrusion 11m that defines the return position (see FIG. 14) of the latch 14 faces inward. It protrudes.
- the lower accommodating portion 11 a 2 accommodates the pole 15 so as to be rotatable by a predetermined amount, and communicates with the upper accommodating portion 11 a 1 at a portion where the pole 15 engages with the latch 14. Yes. Note that one side of the accommodating portions 11 a 1 and 11 a 2 is partially covered by the base plate 12.
- the spring mounting portion 11b is formed on the other side of the body 11 at a position obliquely downward from the rotation support portion (support shaft 19) of the pole 15, as shown in FIGS.
- the locking portion 11b3 is formed so as to protrude from the end of the arcuate wall portion 11b2.
- the striker insertion groove 11c is a groove in which a known striker 30 (see phantom lines in FIGS. 5, 12, and 14) assembled on the vehicle body side relatively enters and retreats when the door 20 is opened and closed. Is formed horizontally.
- the upper support shaft insertion hole 11d is a through hole through which the support shaft 18 (first support shaft) that rotatably supports the latch 14 is inserted.
- the lower support shaft insertion hole 11 e is a through hole through which the support shaft 19 (second support shaft) that rotates integrally with the pole 15 is inserted.
- the three bolt insertion holes 11f, 11g, and 11h are respectively connected to the bolts 21, 22, when the door latch device 10 is assembled to the door 20 using the three bolts 21, 22, 23 (see FIG. 1).
- 23 is an insertion hole that is screwed into and inserted into bolt mounting holes (female screw portions) 12a, 12b, and 12c provided in the base plate 12.
- the stopper attaching portion 11 i is provided in a portion protruding like a bowl between the accommodating portions 11 a 1 and 11 a 2, and the stopper 16 is fitted and fixed.
- the notch 11 j is provided at one side lower part of the body 11, and the opening A is formed by the base plate 12 as shown in FIG. 4.
- the opening A opens the receiving portions 11a1 and 11a2 downward below the pole 15, and is formed in a rectangular shape as viewed from below as shown in FIG.
- the through hole 11k is formed in an arc shape on the vertical wall W between the housing portion 11a2 and the spring mounting portion 11b, and the pole side end portion S2c of the pole return spring S2 can be inserted therethrough.
- the base plate 12 has the bolt mounting hole portions (female screw portions) 12a, 12b, and 12c, the mounting holes 12d and 12e of the support shafts 18 and 19, and the striker insertion slit 12f.
- the sub base plate 13 has mounting holes 13 a and 13 b for the support shafts 18 and 19, and is arranged so as to sandwich the body 11 and the lift lever 17 between the base plates 12. .
- the latch 14 is rotatably supported by the base plate 12 and the sub base plate 13 via a support shaft 18, and has a mounting hole 14a, a striker holding groove 14b, a half latch claw 14c and a full latch claw 14d, and a spring locking hole. 14e and an engaging protrusion 14f.
- the latch 14 is rotated by being pushed by the striker 30 when the door 20 is closed.
- the latch return spring S1 causes the return position shown in FIGS. Is biased toward a position abutting the projection 11m.
- the latch return spring S1 is coaxially assembled to the support shaft 18 and is accommodated together with the latch 14 in the accommodating portion 11a1 of the body 11, and one end is locked to the body 11 and the other end is engaged with the spring of the latch 14. It is locked to the stop hole 14e.
- the mounting hole 14a is for assembling the latch 14 with respect to the support shaft 18 so as to be rotatable.
- the striker holding groove 14b is a groove in which the striker 30 relatively enters and retreats when the door 20 is opened and closed, and is slidably engaged. As shown in FIG. 12, the striker 30 can be held by the striker insertion slit 12 f of the base plate 12.
- the half latch claw 14c is slidably engaged with the engaging portion 15a of the pawl 15 from the door open state shown in FIGS. 13 and 14 to the half door state shown in FIGS. 11 and 12.
- the clockwise rotation of FIG. 12 (rotation of the latch 14 to the return position) is restricted by the engaging portion 15a of the pole 15 at the return position. It is configured to be.
- the full latch claw 14d is slidably engaged with the engaging portion 15a of the pole 15 from the door closed state to the door closed state shown in FIGS.
- the engaging portion 15a of the pole 15 at the return position is restricted from rotating in the clockwise direction in FIG. 5 (rotation of the latch 14 to the return position).
- the pole 15 is rotatably supported by the base plate 12 and the sub base plate 13 through the support shaft 19 together with the lift lever 17 and has the above-described engaging portion 15a, and the spring locking portion 15b and the engaging protrusion 15c. have. Further, the pawl 15 is urged by the pawl return spring S2 toward the return position shown in FIGS. 5, 12, and 14 (position where the engaging protrusion 15 c contacts the stopper 16 assembled to the body 11). In the state shown in FIGS. 5 and 12, the engaging portion 15a engages the latch 14 to prevent the latch 14 from rotating to the return position (door opening direction). As shown in FIG. 5, the engagement protrusion 15 c can be brought into contact with the lower surface of the stopper 16 while being inclined downward toward the tip.
- the pole 15 and the support shaft 19 are integrally formed, and the lift lever 17 is assembled to the support shaft 19 so as to be integrally rotatable. Therefore, the lift lever 17 rotates counterclockwise in FIG. 3 via a door lock device (not shown) in accordance with the door opening operation of the outside door handle and the inside door handle (both not shown) provided on the door 20.
- a door lock device not shown
- the pole 15 and the support shaft 19 are rotated in the clockwise direction shown in the figure from the return position shown in FIGS. 5, 12 and 14 against the urging force of the pole return spring S2.
- the pole return spring S2 is assembled to a spring mounting portion 11b formed on the other side of the body 11 at a position that is obliquely separated from the rotation support portion (support shaft 19) of the pole 15 by a predetermined amount.
- the pole side end portion S2c enters the housing portion 11a2 of the body 11 through the through hole 11k provided in the body 11, and engages with the spring locking portion 15b of the pole 15. Therefore, the pole return spring S2 is supported by the body 11 with the coil portion S2 a disposed outside the housing portions 11a1 and 11a2 (the other side of the body 11) partially covered by the base plate 12.
- the notch 11j of the body 11 that forms the opening A with the base plate 12 is provided at the lower part of one side of the body 11, and the body 11 that accommodates the latch 14 and the pole 15 is provided.
- the accommodating portions 11 a 1 and 11 a 2 are opened downward below the pole 15.
- the pole return spring S2 is assembled to a spring mounting portion 11b formed on the other side of the body 11 at a position away from the rotation support portion of the pole 15, and the pole side end portion S2c is the body side. 11 enters the housing portion 11 a 2 of the body 11 through the through hole 11 k provided in the body 11 and engages with the spring locking portion 15 b of the pole 15.
- the size of the opening (see opening A in FIG. 4) formed below the housing portions 11a1 and 11a2 of the body 11 is hindered by the pole return spring S2 and the spring mounting portion 11b of the body 11. Without opening, it is possible to form an opening of a necessary and sufficient size in the body 11. Therefore, it is possible to enhance the discharge property of the dust and the like that has entered the housing portions 11a1 and 11a2 of the body 11 to the outside of the body 11 and effectively suppress the problems associated with the accumulation of the dust and the like.
- pole return spring S2 is assembled to the spring mounting portion 11b formed on the other side of the body 11 at a position obliquely downward from the rotation support portion (support shaft 19) of the pole 15, Compared to the case where the pole return spring is coaxially assembled to the rotation support portion (support shaft 19) of the pole 15, the degree of freedom of arrangement of the pole return spring S2 can be increased.
- the pole return spring S2 has a coil part S2a at the intermediate part, a body side end part S2b at one end part, and a pole side end part S2c at the other end part.
- the spring mounting portion 11b formed on the body 11 includes a shaft portion 11b1 and an arcuate wall portion 11b2 (holding portion) that hold the coil portion S2a, and a locking portion 11b3 that engages with the body side end portion S2b. Is provided.
- pole return spring S2 body 11, base plate 12, sub base plate 13, latch 14, pole 15, stopper 16, lift lever 17, latch support shaft 18, pole support shaft 19, latch return
- the pole-side end S2c of the pole return spring S2 is inserted through the through-hole 11k of the body 11 into the housing portion 11a2 of the body 11 and is connected to the spring locking portion 15b of the pole 15
- the coil portion S2a of the pole return spring S2 is assembled to the holding portions (11b1, 11b2) of the spring mounting portion 11b formed on the body 11, and finally the body side end portion S2b of the pole return spring S2 is attached.
- the stopper 16 for defining the return position of the pole 15 is formed in a bowl shape between the stopper mounting portion 11i of the body 11 (between the accommodating portions 11a1 and 11a2). It is assembled to the overhanging part). Further, the stopper 16 is disposed above the engaging protrusion 15c of the pole 15 urged counterclockwise in FIG. 5 by the pole return spring S2, and the engaging protrusion 15c of the pole 15 is at the tip. It is possible to contact the lower surface of the stopper 16 in a state inclined downward.
- the spring mounting portion 11b of the body 11 is provided with the shaft portion 11b1 and the arcuate wall portion 11b2 (holding portion) for holding the coil portion S2a of the pole return spring S2, but the pole return spring S2
- the shape of the holding part for holding the coil part S2a can be changed as appropriate, and for example, it is possible to carry out without any one of the shaft part 11b1 and the arcuate wall part 11b2.
- FIGS. 15 and 16 show another embodiment (second embodiment) of an automobile door latch device according to the present invention.
- the automobile door latch device 110 of this embodiment is shown in FIGS. 1 to 5 described above. Like the door latch device 10 for an automobile, it is attached to a door (see a virtual line in FIG. 1) provided on the front right side of the automobile together with a door lock device (not shown).
- the base plate 112 of the steel plate and the sub-base plate 113 made of steel plate, the latch 114 made of metal and partially coated with resin, the latch return spring S11 made of spring steel, and the surface made of metal and partially resin Pole 115 coated with spring, pole return spring S12 made of spring steel, rubber stopper (in the above embodiment) Stopper 16 and likewise configured) and steel (with a lift lever 117 of the metal).
- the body 111 is formed with an accommodating portion 111a for accommodating the latch 114 and the pole 115 on one side of the vertical wall W interposed between the base plate 112 and the sub base plate 113 (the side on which the base plate 112 is assembled).
- a spring mounting portion 111b for assembling the pole return spring S12 is formed on the other side (the side on which the sub base plate 113 is assembled).
- the body 111 includes a striker insertion groove 111c, two support shaft insertion holes 111d and 111e, three bolt insertion holes 111f, 111g, and 111h, a stopper mounting portion (similar to the stopper mounting portion 11i in the above embodiment).
- a notch 111j see FIG. 16
- a through hole 111k and a protrusion (configured in the same manner as the protrusion 11m in the above embodiment) are formed.
- the accommodating portion 111 a accommodates the latch 114 and the pawl 115 so as to be rotatable by a predetermined amount, and one side (the left side in the drawing in FIG. Covered.
- the spring mounting portion 111b is formed on the other side of the body 111 at a position obliquely downward from the rotation support portion (support shaft 119) of the pole 115.
- the shaft portion 111b1 and the projection 111b2 (holding portion) that hold the coil portion S12a, and the locking portion 111b3 that engages with the body side end portion S12b of the pole return spring S12 are provided. Note that the locking portion 111b3 protrudes separately from the protrusion 111b2.
- the striker insertion groove 111c is a groove in which a well-known striker (not shown) assembled on the vehicle body side relatively enters and retreats when the door is opened and closed, and is formed horizontally at the center of the body 111.
- the upper support shaft insertion hole 111d is a through hole through which a metal support shaft 118 (first support shaft) that rotatably supports the latch 114 is inserted.
- the lower support shaft insertion hole 111e is a through hole through which a metal support shaft 119 (second support shaft) that rotatably supports the pole 115 is inserted.
- the three bolt insertion holes 111f, 111g, and 111h are provided when the door latch device 110 is assembled to the door (20) using three bolts (see bolts 21, 22, and 23 in FIG. 1).
- the front end of each is an insertion hole that is screwed into a bolt mounting hole (female thread) provided in the base plate 112.
- the stopper mounting portion is configured in the same manner as the stopper mounting portion 11i in the above embodiment, and the stopper (16) is fitted and fixed in the same manner as in the above embodiment.
- the notch 111 j is provided at one side lower part of the body 111, and an opening A is formed by the base plate 112.
- the opening A opens the accommodating portion 111a downward below the pole 115, and is formed in a rectangular shape as viewed from below.
- the through-hole 111k is formed in an arc shape on the vertical wall W between the housing portion 111a and the spring mounting portion 111b, and the pole-side end portion S12c of the pole return spring S12 can be inserted therethrough.
- the through-hole 111k rotates the pole 115 more than the range in which the pole-side end S12c of the pole return spring S12 moves when the pole 115 rotates to allow the latch 114 to rotate.
- the pole-side end S12c is moved in the moving direction, the pole-side end S12c is allowed to move further in the shape of a long hole (the longitudinal end of the long hole is shown by a broken line in FIG. ).
- the base plate 112 has the above-described bolt mounting hole portion (internal thread portion), mounting holes 112d and 112e that support one end side of the support shafts 118 and 119 (left end side in FIG. 16) in a non-rotatable manner, and a striker insertion slit 112f. And is connected to the sub-base plate 113 via support shafts 118 and 119.
- the sub base plate 113 has mounting holes 113a and 113b that support the other end sides (the right end side in FIG. 16) of the support shafts 118 and 119 in a non-rotatable manner.
- the body 111 is sandwiched between the base plates 112, and a lift lever 117 is arranged to hold.
- the latch 114 is rotatably supported by a support shaft 118 that is non-rotatably supported by the base plate 112 and the sub-base plate 113, and is attached to a mounting hole 114 a (the entire circumference is rotatably attached to the support shaft 118.
- the latch 114 is pushed and rotated by the striker when the door is closed, and is urged toward the return position by the latch return spring S11 as in the above embodiment.
- the latch return spring S11 is coaxially assembled to the support shaft 118 and is housed together with the latch 114 in the housing portion 111a of the body 111. One end of the latch return spring S11 is locked to the body 111 and the other end is engaged with the spring of the latch 114. It is locked in the hole.
- the pole 115 is rotatably supported by a support shaft 119 that is non-rotatably supported by the base plate 112 and the sub base plate 113, and the engaging portion 15a, the spring locking portion 15b, and the engaging protrusion 15c of the above embodiment. And the like, an engaging portion, a spring locking portion, an engaging protrusion, and the like.
- the pawl 15 is urged toward the return position by the pole return spring S12 and is engaged with the latch 114 by an engaging portion (not shown), so that the latch 114 is returned. Prevents rotation to the position (door opening direction). Similar to the above-described embodiment (see FIG. 5), the engaging protrusion (not shown) can contact the lower surface of the stopper assembled to the body 111 while being inclined downward toward the tip.
- the body 111 has the cylindrical extension 111n and the cylindrical support 111p shown in FIG. 16, and the rectangular opening shown in FIG. It has a part 111r.
- the lift lever 117 has an insertion hole 117a (see FIG. 16) that can be inserted into the support shaft 119 shown in FIG. 15, and a convex portion that is bent toward the pole 115 and penetrates the opening 111r of the body 111. 117b (see FIG. 15).
- the extending portion 111n of the body 111 supports the lift lever 117 rotatably, extends along the support shaft 119, and is inserted into the insertion hole 117a of the lift lever 117 so as to support the lift lever 117. It is interposed between the shaft 119 and surrounds the entire circumference of the support shaft 119.
- the support part 111p of the body 111 extends a predetermined amount from the base plate side of the extension part 111n in the radially outward direction and the axial direction, and extends in the circumferential direction. For this reason, the lift lever 117 rotatably supported on the extending portion 111n of the body 111 is disposed between the support portion 111p of the body 111 and the sub base plate 113. Further, the sub base plate 113 is positioned in the axial direction by the extending portion 111 n of the body 111.
- the convex part 117b of the lift lever 117 penetrates through the opening part 111r of the body 111 and has a concave part provided on the end surface of the pole 115 on the side of the sub base plate 113 (similar to the I-shaped concave part 15d provided on the pole 15 in FIG. Can be fitted). Further, the convex portion 117b of the lift lever 117 is fitted into the concave portion (15d) of the pole 115 described above, so that the lift lever 117 and the pole 115 can be rotated together and rotated at the opening 111r of the body 111 ( Rotation corresponding to the rotation away from the stopper of the pole 115 is permitted. Note that the concave portion (15d) of the pole 115 described above can also be implemented as a through hole.
- FIGS. 15 and FIG. 16 configured as described above provide the same operational effects as those of the above-described embodiment shown in FIGS. 1 to 14 and the following operational effects.
- this embodiment shown in FIGS. 15 and 16 since the through hole 111k provided in the body 111 has a long hole shape as described above, the pole-side end portion S12c of the pole return spring S12 is assembled to the body 111. It is easy to attach and the assembly of the pole return spring S12 is improved.
- the support shaft 119 is made of metal
- the lift lever 117 assembled so as to rotate integrally with the pole 115 is made of metal
- the body 111 is made of resin. Since the body 111 has the above-described extension part 111n, the extension part 111n of the resin body 111 can be provided with the function of a bush (resin bearing), and parts can be added. In addition, the metal contact between the lift lever 117 and the support shaft 119 can be eliminated. For this reason, generation
- operating can be prevented.
- the extending part 111n is formed in a cylindrical shape and surrounds the entire circumference of the support shaft 119, it is possible to more suitably prevent the generation of noise due to the metal contact.
- the base plate 112 supports one end side of the support shaft 119 in a non-rotatable manner, and is assembled to the other side of the body 111 and positioned by the extending portion 111n.
- the base plate 113 supports the other end of the support shaft 119 in a non-rotatable manner, and the pole 115 and the lift lever 117 are supported on the support shaft 119 in a rotatable manner.
- the body 111 has a support portion 111p extending in the circumferential direction from the base plate side of the extending portion 111n, and a lift lever 117 is disposed between the support portion 111p of the body 111 and the sub base plate 113. For this reason, the lift lever 117 can be prevented from being sandwiched between the support portion 111p of the body 111 and the sub base plate 113, and the smooth rotation of the lift lever 117 is ensured.
- a part (concave part) of the pole 115 and a part (convex part 117b) of the lift lever 117 are fitted in the axial direction so that the pole 115 and the lift lever 117 are connected so as to be integrally rotatable. It is possible. Therefore, for example, the pole (115) and the support shaft (119) are integrated, the lift lever (117) is fixed to the support shaft (119) by caulking or the like, and the support shaft is supported with respect to the base plate 112 and the sub base plate 113. Compared with the case where (119) is rotatably connected, it is possible to improve manufacturability.
- the lift lever 117 has a convex portion 117b that is bent toward the pole 115 and penetrates the body 111, and the pole 115 can be fitted to the convex portion 117b.
- the body 111 has an opening 111r that allows the protrusion 117b to penetrate and rotate, and the protrusion 117b passes through the opening 111r and fits into the recess (15d).
- the lift lever 117 and the pole 115 can rotate together. For this reason, it is possible to connect the pole 115 and the lift lever 117 so as to be integrally rotatable without providing a separate component such as a connecting pin on the lift lever 117, and it is possible to construct a simple and inexpensive structure.
- the lift lever 117 is integrally provided with the convex portion 117b.
- another member such as a pin (fixed to the lift lever 117) is used.
- a member that can be fitted into the recess (15d) of the pole 115 is also possible.
- the extending portion 111n is formed in a cylindrical shape (arranged around the entire circumference), but the extending portion (111n) is formed in a part of the circumferential direction. It is also possible to implement the configuration by arranging them (for example, a configuration in which a plurality of them are provided at equal intervals in the circumferential direction).
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- Lock And Its Accessories (AREA)
Abstract
Description
しかし、上記した特許文献1に記載されている自動車用ドアラッチ装置では、ポールリターンスプリングが、ラッチとポールを収容するボデーの収容部(空間)内にて、ポールの近傍下側に配置されている。このため、ラッチとポールを収容するボデーの収容部(空間)内に侵入した粉塵等が、ポールリターンスプリングによってボデー外への排出を妨げられて、上記した収容部(空間)内に堆積するおそれがある。
本発明は、上記した課題を解決すべくなされたものであり、ドアに組付けられるよう適合されるベースプレートと、一側に収容部が形成されていて同収容部が前記ベースプレートにより一側にて覆われているボデーと、前記ボデーの前記収容部内に収容されて前記ベースプレートに第1の支持軸を介して回転可能に支持され車体側のストライカによって押動されて回転するよう適合されるラッチと、前記ボデーの前記収容部内に収容されて前記ラッチをその復帰位置に向けて付勢するラッチリターンスプリングと、前記ラッチの下方にて前記ボデーの前記収容部内に収容されて前記ベースプレートに第2の支持軸を介して回転可能に支持され前記ラッチと係合してそのドア開方向への回動を阻止するポールと、このポールをその復帰位置に向けて付勢するポールリターンスプリングとを備えていて、前記ボデーの前記収容部は前記ポールの下方にて下方に向けて開口しており、前記ポールリターンスプリングは、前記ポールの回転支持部から下方に離れた位置にて前記ボデーの他側に形成されたスプリング取付部に組付けられていて、そのポール側端部が前記ボデーに設けた貫通孔を通して前記ボデーの前記収容部に入り込んで前記ポールに係合している自動車用ドアラッチ装置に特徴がある。
本発明による自動車用ドアラッチ装置においては、ボデーの収容部がポールの下方にて下方に向けて開口している。また、ポールリターンスプリングが、ポールの回転支持部から下方に離れた位置にてボデーの他側に形成されたスプリング取付部に組付けられていて、そのポール側端部がボデーに設けた貫通孔を通してボデーの収容部に入り込んでポールに係合している。このため、ボデーの収容部の下方に形成される開口の大きさが、ポールリターンスプリングやボデーのスプリング取付部によって阻害されることがなくて、必要十分な大きさの開口をボデーに形成することが可能である。したがって、ボデーの収容部内に侵入した粉塵等のボデー外への排出性を高めて、粉塵等の堆積に伴う不具合を効果的に抑制することが可能である。
Claims (8)
- ドアに組付けられるよう適合されるベースプレートと、一側に収容部が形成されていて同収容部が前記ベースプレートにより一側にて覆われているボデーと、前記ボデーの前記収容部内に収容されて前記ベースプレートに第1の支持軸を介して回転可能に支持され車体側のストライカによって押動されて回転するよう適合されるラッチと、前記ボデーの前記収容部内に収容されて前記ラッチをその復帰位置に向けて付勢するラッチリターンスプリングと、前記ラッチの下方にて前記ボデーの前記収容部内に収容されて前記ベースプレートに第2の支持軸を介して回転可能に支持され前記ラッチと係合してそのドア開方向への回動を阻止するポールと、このポールをその復帰位置に向けて付勢するポールリターンスプリングとを備えていて、
前記ボデーの前記収容部は前記ポールの下方にて下方に向けて開口しており、
前記ポールリターンスプリングは、前記ポールの回転支持部から下方に離れた位置にて前記ボデーの他側に形成されたスプリング取付部に組付けられていて、そのポール側端部が前記ボデーに設けた貫通孔を通して前記ボデーの前記収容部に入り込んで前記ポールに係合している自動車用ドアラッチ装置。 - 請求項1に記載の自動車用ドアラッチ装置において、
前記ポールリターンスプリングは、中間部にコイル部を有し、一端部にボデー側端部を有し、他端部にポール側端部を有していて、前記ボデーに形成された前記スプリング取付部には、前記コイル部を保持する保持部と、前記ボデー側端部と係合する係止部が設けられている自動車用ドアラッチ装置。 - 請求項1または2に記載の自動車用ドアラッチ装置において、
前記貫通孔は、前記ラッチの回動を許容するために前記ポールが回動する際に、前記ポールリターンスプリングの前記ポール側端部が移動する範囲よりも、前記ポールが回動する際に前記ポール側端部が移動する移動方向に前記ポール側端部が更に移動することを許容する長さの長孔形状を呈している自動車用ドアラッチ装置。 - 請求項1~3の何れか一項に記載の自動車用ドアラッチ装置において、
前記ポールを回転可能に支持する前記第2の支持軸は金属製であり、
前記第2の支持軸に挿通可能な挿通孔を有し、前記第2の支持軸に対して前記ポールと一体回転可能に組付けられるリフトレバーが金属製であり、
前記ボデーは、樹脂製であり、前記第2の支持軸に沿って延在するとともに前記リフトレバーの前記挿通孔に挿通されて前記リフトレバーと前記第2の支持軸との間に介在しかつ前記リフトレバーを回転可能に支持する延在部を有する自動車用ドアラッチ装置。 - 請求項4に記載の自動車用ドアラッチ装置において、
前記延在部は、円筒状に形成されていて、前記支持軸の全周を囲んでいる自動車用ドアラッチ装置。 - 請求項4または5に記載の自動車用ドアラッチ装置において、
前記ベースプレートは、前記第2の支持軸の一端側を回転不能に支持し、
前記ボデーの他側に組付けられて前記延在部によって位置決めされるサブベースプレートは、前記第2の支持軸の他端部を回転不能に支持し、
前記ポールおよび前記リフトレバーは、前記第2の支持軸に回転可能に支持され、
前記ボデーは、前記延在部の前記ベースプレート側から周方向に延在する支持部を有し、
前記リフトレバーは、前記ボデーの前記支持部と前記サブベースプレートとの間に配設されている自動車用ドアラッチ装置。 - 請求項4~6の何れか一項に記載の自動車用ドアラッチ装置において、
前記リフトレバーは、前記ポールに向けて折り曲げられて前記ボデーを貫通する凸部を有し、
前記ポールは、前記凸部と嵌合可能な凹部を有し、
前記ボデーは、前記凸部の貫通および回転を許容する開口部を有し、
前記凸部が前記開口部を貫通して前記凹部に嵌合することで、前記リフトレバーと前記ポールとが一体回転可能となっている自動車用ドアラッチ装置。 - 請求項1~7の何れか一項に記載の自動車用ドアラッチ装置において、
前記ポールは係合突部を有し、
前記係合突部の上方に配置されるよう前記ボデーに取付けられ、前記係合突部に当接して前記ポールの復帰位置を規定するストッパを備える自動車用ドアラッチ装置。
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CN201080064052.5A CN102762807B (zh) | 2010-02-19 | 2010-12-24 | 汽车用门锁装置 |
BR112012020794-6A BR112012020794B1 (pt) | 2010-02-19 | 2010-12-24 | Dispositivo de trinco de porta automotiva |
EP10846188.0A EP2538002B1 (en) | 2010-02-19 | 2010-12-24 | Automotive door latch device |
JP2012500473A JP5304945B2 (ja) | 2010-02-19 | 2010-12-24 | 自動車用ドアラッチ装置 |
US13/579,181 US8967683B2 (en) | 2010-02-19 | 2010-12-24 | Automotive door latch device |
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US (1) | US8967683B2 (ja) |
EP (1) | EP2538002B1 (ja) |
JP (1) | JP5304945B2 (ja) |
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Also Published As
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US20120313385A1 (en) | 2012-12-13 |
BR112012020794B1 (pt) | 2019-08-20 |
EP2538002A1 (en) | 2012-12-26 |
EP2538002B1 (en) | 2018-08-22 |
JPWO2011102057A1 (ja) | 2013-06-17 |
EP2538002A4 (en) | 2017-04-12 |
JP5304945B2 (ja) | 2013-10-02 |
CN102762807B (zh) | 2014-12-10 |
US8967683B2 (en) | 2015-03-03 |
BR112012020794A2 (pt) | 2016-05-03 |
CN102762807A (zh) | 2012-10-31 |
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