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EP0684356B1 - Türschliessantrieb - Google Patents

Türschliessantrieb Download PDF

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Publication number
EP0684356B1
EP0684356B1 EP95902294A EP95902294A EP0684356B1 EP 0684356 B1 EP0684356 B1 EP 0684356B1 EP 95902294 A EP95902294 A EP 95902294A EP 95902294 A EP95902294 A EP 95902294A EP 0684356 B1 EP0684356 B1 EP 0684356B1
Authority
EP
European Patent Office
Prior art keywords
door
reduction gear
intermediate reduction
torque
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95902294A
Other languages
English (en)
French (fr)
Other versions
EP0684356A4 (de
EP0684356A1 (de
Inventor
Takashi Kobayashi
Hitoshi Amano
Hiroshi Takeyama
Kazuhiro Nakao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of EP0684356A1 publication Critical patent/EP0684356A1/de
Publication of EP0684356A4 publication Critical patent/EP0684356A4/de
Application granted granted Critical
Publication of EP0684356B1 publication Critical patent/EP0684356B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/25—Actuators mounted separately from the lock and controlling the lock functions through mechanical connections
    • 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
    • E05B15/0053—Other details of locks; Parts for engagement by bolts of fastening devices means providing a stable, i.e. indexed, position of lock parts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/36—Locks for passenger or like doors

Definitions

  • the present invention relates to a door-lock driving apparatus which locks or unlocks a door of an automobile according to the preamble of claims 1 and 6.
  • an electric motor has a motor shaft, a pinion secured thereto and an intermediate gear which has an engagement projection and is in engagement with the pinion.
  • a resilient member is disposed around a shaft of the intermediate gear and has an end fixed to an output shaft of a driven-lever of a door-lock unit and another end which has a rocking member having an engagement projection rocking between a first position (one stopper) and a second position (another stopper).
  • the engagement projections of the intermediate gear and the rocking member are respectively disposed to engage with or disengage from the resilient member so that the motor torque is transmitted from the intermediate gear through the resilient member to the rocking member.
  • the resilient member of the above described door-lock driving apparatus is made from a coil spring which has two end portions extending in an axial direction disposed at the opposite sides (at an arc angle 180° ). One of the portions engages with the engagement projection of the intermediate gear and the other engages with the engagement projection of the rocking member. Since the resilient member is disposed rotatably around the shaft of the intermediate gear, when the motor rotates, the intermediate gear is rotated through the pinion by the motor and the engagement projection of the intermediate gear engages with one of the end portions of the resilient member to bend the resilient member. The other end portion of the resilient member engages with the engagement projection of the rocking member to move until the rocking member abuts the above mentioned stoppers, thereby deenergizing the motor. Thereafter, the intermediate gear rotates in a 180° angle arc under the resilient force of the resilient member which is exerted thereon through the engagement projection of the intermediate gear, and a gear noise is generated at this moment.
  • a door-locking apparatus which comprises a gear driven by a motor, a further gear which is in engagement with the former gear and driven thereby. Furthermore, there is provided an actuating member having a torque receiving section at one end and a portion at the other end which is fixed to the torque receiving portion and connected to an output member for carrying out a door-locking and unlocking operation. Furthermore, there is disclosed a restricting member for restricting the motion of the actuating member. In addition, there is disclosed an elastic member which urges a pin being in engagement with another gear for performing a linear movement, when the motor does not drive the former gear any longer.
  • the present invention has been made in view of the above circumstances and it is an object to provide a door-lock driving apparatus which reduces the gear noise generated when the motor is deenergized after the door-locking or door-unlocking is completed and the intermediate gear is rotated backward by the resilient member.
  • said actuating member has a first member to be pushed by the torque transmitting member and a second member formed on an end portion of said actuating member which moves along an arc; a restricting member restricts motion of said actuating member against rotating torque exerted by said torque transmitting member; and an elastic member is disposed between said rotating member and said actuating member; therefore, when said motor is energized, said- torque transmitting member pushes said first member of said actuating member and drives said actuating member against said restricting member, separates from an arc-shaped motion orbit of said actuating member, subsequently pushes said second member while bending said elastic member to deenergize said motor, and separates again from said arc-shaped motion orbit of said actuating member due to spring force accumulated in said elastic member.
  • the present invention adopts the door-lock driving apparatus so that it further comprises a manually operated member connected to said door-lock unit or said actuating member, wherein when said manually operated member is held in a door-locking position, said elastic member bends as it receives rotating torque of said rotating member moving to said actuating member which is retained by said manually operated member and relieves shock applied to said rotating member, and when said motor is deenergized, said torque transmitting member stops after said torque transmitting member separates from said actuating member due to spring force accumulated in said elastic member.
  • said elastic member bends as it receives rotating torque of said rotating member moving to said actuating member which is retained by said manually operated member and relieves shock applied to said rotating member, and when said motor is deenergized, said torque transmitting member stops after said torque transmitting member separates from said actuating member due to spring force accumulated in said elastic member. Thereafter, only small power is necessary to operate the door-lock unit.
  • the present invention adopts a door-lock driving apparatus, wherein said rotating member comprises a pinion driven by said motor and an intermediate reduction gear; said torque transmitting member is disposed to be rotatable relative to said intermediate reduction gear around a central axis of said intermediate reduction gear; and said elastic member comprises a coil spring held by said intermediate reduction gear at its one end and held by said torque transmitting member at the other end.
  • the rotating torque of the motor is transmitted through the pinion to the intermediate reduction gear and through the coil spring as an elastic member to the torque transmitting member.
  • the actuating member is driven by the torque transmitting member to move to the door-locking direction or to the door-unlocking position thereby carrying out the door-locking or door-unlocking.
  • the coil spring having one end held by the intermediate reduction gear and the other end held by the torque transmitting member is rotated by the intermediate reduction gear with the other end being fixed.
  • the coil spring is bent in the rotating direction of the intermediate reduction gear while accumulating the spring force.
  • the torque transmitting member is separated from the actuating member due to the spring force accumulated in the coil spring and the operation power is reduced.
  • the present invention adopts a door-lock driving apparatus, wherein said rotating member comprises a pinion driven by said motor and an intermediate reduction gear; said torque transmitting member is disposed to be rotatable relative to said intermediate reduction gear around a central axis of said intermediate reduction gear; and said elastic member is made of highly polymerized compound such as elastomer or elastic material such as rubber and is disposed between said intermediate reduction gear and said torque transmitting member.
  • the rotating torque of the motor is transmitted through the pinion to the intermediate reduction gear and through the elastic member made of highly polymerized compound such as elastomer or elastic material such as rubber to the torque transmitting member.
  • the actuating member is driven by the torque transmitting member to move to the door-locking position or to the door-unlocking position thereby carrying out the door-locking or door-unlocking.
  • the elastic member having one portion being fixed is bent in the rotating direction of the intermediate reduction gear while accumulating the spring force.
  • the shock applied through the torque transmitting member and the intermediate reduction gear to the pinion is relieved.
  • the pinion and the intermediate reduction gear may be made of an inexpensive resinous material, thereby providing a cost-reduced apparatus as mentioned above.
  • the present invention adopts a door-lock driving apparatus, wherein said torque transmitting member comprises an integral elastic member made of highly polymerized compound such as elastomer or elastic material such as rubber.
  • the torque transmitting member may be an integral elastic member made of highly polymerized compound such as elastomer or elastic material such as rubber and further reduction of parts may be realized.
  • the present invention adopts a door-lock driving apparatus comprising: a pinion driven by a motor; an intermediate reduction gear which is in engagement with said pinion and is driven by said pinion; a projection rotating with said intermediate reduction gear; a torque transmitting member having a torque transmitting portion at one end and a portion at the other end which is fixed to said torque transmitting portion and connected to an output member for carrying out door-locking operation; a restricting member for restricting motion of said torque transmitting member against said transmitting torque; and an elastic member, disposed between said projection of said intermediate reduction gear and said torque transmitting portion of said torque transmitting member, for generating driving force to separate said projection from said torque transmitting means by bending.
  • the torque of the intermediate reduction gear is transmitted through the projection and the torque transmitting portion to the torque transmitting member.
  • the elastic member disposed between the projection and the torque transmitting member bends and generates driving force to separate the above two members.
  • the shock applied to the pinion and the intermediate reduction gear is relieved, thereby realizing a resinous pinion and a resinous intermediate reduction gear. Since the projection and the torque transmitting member is separated from each other due to driving force generated in the elastic member, the operation power for the door-locking is reduced.
  • Fig. 1 is a plan view illustrating an internal structure of a door-lock driving apparatus according to an embodiment of the present invention.
  • Fig. 2 is a cross-sectional side view of the door-lock driving apparatus (first embodiment).
  • Fig. 3 is a graph showing load characteristics of a door-lock unit (first embodiment).
  • Fig. 4 is an explanatory view of the door-lock driving apparatus in operation (first embodiment).
  • Fig. 5 is an explanatory view of the door-lock driving apparatus in operation (first embodiment).
  • Fig. 6 is an explanatory view of the door-lock driving apparatus in operation (first embodiment).
  • Fig. 7 is an explanatory view of the door-lock driving apparatus in operation (first embodiment).
  • Fig. 8 is an explanatory view of the door-lock driving apparatus in operation (first embodiment).
  • Fig. 9 is an explanatory view of the door-lock driving apparatus in operation (first embodiment).
  • Fig. 10 is an explanatory view of the door-lock driving apparatus when a knob is in a lock position (first embodiment).
  • Fig. 11 is an explanatory view of the door-lock driving apparatus when the knob is in the lock possition (first embodiment).
  • Fig. 12 is an explanatory view of the door-lock driving apparatus when the knob is in the lock position (first embodiment).
  • Fig. 13 is an explanatory view of the door-lock driving apparatus when the knob is in the lock position (first embodiment).
  • Fig. 14 is a plan view illustrating an internal structure of a door-lock driving apparatus according to a second embodiment of the present invention.
  • FIG. 15 is cross-sectional and plan views illustrating a intermediate reduction gear, a cam and a resilient member (second embodiment).
  • Fig. 16 is a perspective view illustrating the intermediate reduction gear, the cam and the resilient member (second embodiment).
  • Fig. 17 is a plan view illustrating an internal structure of a door-lock driving apparatus according to a third embodiment of the present invention.
  • Fig. 18 is cross-sectional and plan views illustrating a intermediate reduction gear, a cam and a resilient member (third embodiment).
  • Fig. 19 is a perspective view illustrating the intermediate reduction gear, the cam and the resilient member (third embodiment).
  • Fig. 20 is a plan view illustrating an internal structure of a door-lock driving apparatus according to a fourth embodiment of the present invention.
  • Fig. 20 is a plan view illustrating an internal structure of a door-lock driving apparatus according to a fourth embodiment of the present invention.
  • FIG. 21 is a cross-sectional view of the apparatus illustrated in Fig. 20 taken along a line II-II.
  • Fig. 22 is an explanatory view of the door-lock driving apparatus in operation (fourth embodiment).
  • Fig. 23 is an explanatory view of the door-lock driving apparatus in operation (fourth embodiment).
  • Fig. 24 is an explanatory view of the door-lock driving apparatus in operation (fourth embodiment).
  • Fig. 25 is an explanatory view of the door-lock driving apparatus in operation (fourth embodiment).
  • Fig. 26 is an explanatory view of the door-lock driving apparatus in operation (fourth embodiment).
  • Fig. 27 is an explanatory view of the door-lock driving apparatus in operation (fourth embodiment).
  • Fig. 28 is an explanatory view of the door-lock driving apparatus in operation (fourth embodiment).
  • Fig. 29 is an explanatory view of the door-lock driving apparatus in operation (fifth embodiment).
  • Fig. 30 is an explanatory view of the door-lock driving apparatus in operation (sixth embodiment).
  • a door-lock driving apparatus according to an embodiment of the present invention is described next with reference to the drawings.
  • Fig. 1 is a plan view illustrating an internal structure of a door-lock driving apparatus 1.
  • Fig. 2 is a cross-sectional side view of the door-lock driving apparatus 1.
  • Fig. 1 (b) and Fig. 4 (b) through Fig. 13 (b) are cross-sectional side views taken along line I - I in Fig. 2.
  • the door-lock driving apparatus 1 of the embodiment is an actuator which controls a door-lock unit DL for locking or unlocking a door, and is composed of a case 2 having a separate lower case 2a and an upper case 2b, a motor 3 which is rotatable in both direction, a pinion 4 driven by the motor 3, an intermediate reduction gear 5 which is rotatable in mesh with the pinion 4, a coil spring 6 ( hereinafter referred to as the spring 6) disposed on the intermediate reduction gear 5, a cam 7 to which the rotating torque of the intermediate reduction gear 5 is transmitted through the spring 6, and an actuating lever 8 driven by the rotating torque of the cam 7.
  • the door-lock unit DL is connected to the door-lock driving apparatus through a rocking lever 10 which carries the door-locking and door-unlocking.
  • the rocking lever 10 rocks between a door-lock position and a door-unlocking position around a pivot 11 disposed on the door-lock unit DL.
  • the door-lock unit DL is biased by a turn-over spring 12 disposed between the unit DL and the rocking lever 10 and drives the door-lock driving apparatus in the direction as shown in Fig. 3 when a load turns over during its operation.
  • the motor 3 is energized through a terminal 13 (see Fig. 2) which is taken out of the case 2 and changes the rotating direction when the door-locking changes to the door-unlocking and vice versa.
  • the pinion 4 has a D-cut opening therein and is fitted detachably to a rotary shaft 3a of the motor which has a corresponding D-cut portion so as to rotate together.
  • the intermediate reduction gear 5 has a boss portion 5a which receives a shaft 14 rotatably that is the center of rotation, gear teeth portion 5b and an arc-shaped engagement wall 5c formed in an axial direction (in parallel with the shaft 14) on the inner periphery of the teeth portion 5b.
  • the shaft 14 extends in a direction perpendicular to the rotary shaft 3a of the motor 3 and is press-fitted to the lower case 2a at its one end and to the upper case 2b at the other end thereof.
  • the spring 6 is, as shown in Fig. 1 (b), disposed between the teeth portion 5b and the engagement wall 5c on the inner periphery of the teeth portion 5b of the intermediate reduction gear 5.
  • the both end portions are bent inward (to the center) and hold the engagement wall 5c of the intermediate reduction gear 5 therebetween.
  • the cam 7, as shown in Fig. 2, is fitted rotatably to the shaft 14 to face the intermediate reduction gear 5 in the axial direction.
  • An arc-shaped engagement wall 7a is formed at a circumferential portion of the shaft 14 on the surface of the cam 7 facing the intermediate reduction gear 5.
  • the engagement wall 7a is disposed between the boss portion 5a and the engagement wall 5c of the intermediate reduction gear 5 in the radial direction of the shaft 14 and has the arc length shorter than the engagement wall 5c of the intermediate reduction gear 5.
  • the cam 7, as shown in Fig. 1 (b) is fitted to the shaft 14 so that the engagement wall 7a is disposed between the both end portions of the spring 6, in other words, disposed at a portion overlapping with the intermediate reduction gear 5 around the shaft 14.
  • the actuating lever 8 has an output shaft 15 insert-fitted thereto at its one end and rotates around the output shaft 15 between a couple of stoppers (restricting members) 16 and 17.
  • the output shaft 15 is rotatably supported by the lower case 2a and the upper case 2b.
  • the actuating lever 8 has torque receiving portions 8a and 8b at a fun-shaped portion radially extending from the output shaft 15.
  • the torque-receiving portions 8a and 8b slide on the cam surface as the cam 7 rotates, thereby to rotate the actuating lever 8 around the output shaft 15 between the door-locking position (the position shown in Fig. 1) and the door-unlocking position (the position shown in Fig. 6 through 9).
  • the torque-receiving portions 8a receives a rotating torque from the cam 7 when the door-lock unit DL locks the door, and 8b receives a rotating torque from the cam 7 when the door-lock unit DL unlocks the door.
  • a U-shaped recess is formed between the locking-side torque-receiving portion 8a and the unlocking-side torque-receiving portion 8b in order to prevent an interference of the cam 7.
  • An outer periphery formed continuously between the locking torque-receiving portion 8a and the unlocking torque-receiving portion 8b enters the orbit of the cam motion when the actuating lever 8 rotates to the locking position or to the unlocking position, and functions as stopper walls 8d and 8e to restrict the rotation of the cam 7 when the cam 7 abuts thereon.
  • the stopper walls 8d and 8e move in an arc around the output shaft 15.
  • Engagement grooves 8f and 8g are formed on the outer periphery formed continuously between the locking and unlocking torque-receiving portions 8a and 8b of the actuating lever 8 and engage one of the stoppers 16 and 17 when the lever 8 is driven by the cam 7 to rotate to the locking or unlocking position.
  • the stopper 16 and 17 are disposed at positions symmetrical with respect to an imaginary line between the output shaft 14 and the shaft 15.
  • the stoppers are made of an elastic material (e.g. rubber) so as to absorb a shock caused when the actuating lever 8 engages therewith.
  • An output lever 9 is formed into a L-shape and has a hole (not shown) at a bend portion thereof to engage with an insert portion 15a formed at an end portion of the output shaft 15, thereby to rotate as a unit with the output shaft 15 (or actuating lever 8).
  • An end of the output lever 9 is connected to a knob 18 which a driver handles when he intends to operate the door-lock unit DL and the other end is connected to the rocking lever 10 of the door-lock unit DL and the other end is connected to the rocking lever 10 of the door-lock unit DL (see Fig. 1 and Fig. 2).
  • the door-unlocking - side torque-receiving portion 8b slides on the surface of the cam 7 and moves along the cam profile as the cam 7 rotates, and the actuating lever 8 rotates around the output shaft 15 from the door-locking position to the door-unlocking position.
  • the actuating lever 8 does not reach the door-unlocking position ( as shown in Fig.
  • the intermediate reduction gear 5 rotates in the reverse direction (clockwise in Fig. 1) due to the elastic energy accumulated by the spring 6 (as shown in Fig. 8b).
  • the intermediate reduction gear 5 and the cam 7 continue to rotate to the state shown in Fig. 8 due to its inertia of the motion accumulated in the period from the state shown in Fig. 7 even after the elastic energy dissipates, and stop rotation when the cam 7 leaves the stopper wall 8d (as shown in Fig. 9).
  • the actuating lever 8 has the door-locking-side torque-receiving portion 8b on which the cam 7 abuts and the stopper wall 8d which is formed at the head portion moving in an arc around the shaft 15, the stopper 17 restricts further movement of the actuating lever 8 against the rotating torque exerted by the cam 7, and the coil spring 6 is disposed in the path of the torque transmission. Therefore, when the motor 3 is energized, the cam 7 presses on the door-unlocking-side torque-receiving-portion 8b to move the actuating lever 8 toward the stopper 17 and leaves the generally arc-shaped operation orbit of the actuating lever 8.
  • the cam 7 subsequently presses on the stopper wall 8d while compressing the coil spring 6 thereby to deenergize the motor 3.
  • the motor 3 is energized again to carry out the door-unlocking.
  • the intermediate reduction gear 5 is slightly moved due to the spring force of the spring 6, however, the gear noise is significantly reduced compared with the apparatus in which the intermediate reduction gear 5 is driven mainly by the coil spring 6.
  • the door-locking is also carried out by energizing the motor 3.
  • the intermediate reduction gear 5 is slightly moved due to the spring force of the coil spring 6 after the motor 3 is deenergized as in the door-unlocking operation, and the gear noise is reduced significantly compared with the apparatus in which the intermediate reduction gear 5 is driven mainly by the coil spring 6.
  • the intermediate reduction gear 5 further rotates while bending the coil spring 6 and stops gradually.
  • the shock caused when the cam 7 abuts the stopper wall 8d is absorbed by bending of the coil spring 6.
  • the shock which is applied to the intermediate reduction gear and the pinion 4 when the cam 7 is stopped, is relieved, so that the intermediate reduction gear 5 and the pinion may be made of resinous material, resulting in cost reduction.
  • the door-locking operation has the same effect as the door-unlocking operation described above.
  • the cam 7 When the motor 3 is energized while the knob 18 is held in the lock position, the cam 7 is driven by the motor 3 to rotate along with the intermediate reduction gear 5 in the door-unlocking direction (counterclockwise in Fig. 10) and abuts the door-unlocking-side torque-receiving-portion 8b.
  • the actuating lever 8 receives the driving torque of the cam 7, however it cannot move to the door-unlocking-side because the knob is held in the locking position. Consequently, the cam 7 stops while it is in abutment with the door-unlocking-side torque-receiving-portion 8b of the actuating lever 8 (as shown in Fig. 10).
  • the intermediate reduction gear 5 further rotates and bends the spring 6 for a while, and stops gradually (as shown in Fig. 11).
  • the intermediate reduction gear 5 rotates in the opposite direction (clockwise in Fig. 12) due to the accumulated elastic energy of the spring 6.
  • the intermediate reduction gear 5 further rotates after the elastic energy dissipates due to the motion inertia thereof along with the cam 7 which has been at rest so that the cam 7 leaves the door-unlocking-side torque-receiving-portion 8b and stops (as shown in Fig. 13).
  • Fig. 14 is a plan view illustrating an internal structure of a door-lock driving apparatus 1.
  • Fig. 15 is a cross-sectional view (a) and a plan view (b), and Fig. 16 is a perspective view of the gear 5, the cam 7 and the elastic member 19 and an allover perspective view thereof.
  • the intermediate reduction gear 5 has the same boss portion 5a and teeth portion 5b as the first embodiment has.
  • An engagement surfaces 5d are formed on the inner periphery of the teeth portion 5b to regulate the motion (rotation) of the elastic member 19.
  • the engagement surfaces 5d are formed on two portions respectively corresponding to opposite (normal or reverse) directions of the motor rotation.
  • a recess 5e is formed on a side of the intermediate reduction gear 5 over the entire circumference thereof.
  • the cam 7 has a disk member 7c formed integrally therewith.
  • the disk member 7c has a given radius from an opening 7b which receives the shaft 14 therein, and a projection bar 7d at an outer portion thereof.
  • the opening 7b of the cam 7 receives the shaft 14 rotatably and the disk member 7c of the cam 7 is fitted to the recess 5e of the intermediate reduction gear 5.
  • a small gap is formed between the outer periphery of the disk member 7c and the inner surface of the recess 5e so that they are not interfere each other (as shown in Fig. 16(d).
  • the elastic member 19 is fitted rotatably to the boss portion 5a of the intermediate reduction gear 5 and disposed inside the intermediate reduction gear 5.
  • a flat outer-wall-surface 19a is formed on the elastic member 19 as shown in Fig. 16(b) to receive the rotational torque of the intermediate reduction gear 5 when in contact therewith.
  • the elastic member 19 has an opening 19b which receives the bar projection 7d of the cam 7.
  • the pinion 4 is driven by the motor 3 and the intermediate reduction gear 5 in mesh with the pinion 4 is rotated.
  • the rotational torque of the intermediate reduction gear 5 is transmitted through the elastic member 19, and the cam 7 rotates in the door-unlocking direction along with the intermediate reduction gear 5 and the elastic member 19.
  • the door-unlocking-side torque-receiving-portion 8b moves along the cam profile and the actuating lever 8 rotates around the output shaft 15 from the door-locking position to the door-unlocking position.
  • the cam 7 leaves the door-unlocking-side torque-receiving-portion 8b as the actuating lever 8 rotates and further rotates until it abuts the the stopper wall 8d of the actuating lever 8.
  • the cam 7 stops when it abuts the stopper wall 8d, however the intermediate reduction gear 5 further rotates while bending the elastic member 19 and stops gradually.
  • the intermediate reduction gear 5 When the motor 3 is deenergized in this state, the intermediate reduction gear 5 is rotated by the spring energy accumulated in the elastic member 19 in the direction opposite the door-unlocking direction. After the energy dissipates from the elastic member, the intermediate reduction gear 5 continues to rotate due to the inertia thereof along with the elastic member 19 and the cam 7 until the cam 7 leaves the stopper wall 8d of the actuating lever 8.
  • the actuating lever 8 which is connected to the door-lock unit DL has the door-unlocking-side torque-receiving-portion 8b which is engaged with the cam 7 and the stopper wall 8d which is formed at the head thereof to move along an arc as described above, the stopper 17 restricts the motion of the actuating lever 8 which is driven by the cam 7, and the elastic member 19 is disposed in the torque transmitting path between the pinion 4 and the lever 8.
  • the cam 7 pushes the door-unlocking-side torque-receiving portion 8b thereby to move the actuating lever 8 toward the stopper 17.
  • the cam 7 leaves the arc-shaped motion orbit of the actuating lever 8, thereafter it is driven by the intermediate gear 5 which rotates to bend the elastic member 19 and presses the stopper wall 8d of the actuating lever 8 to deenergize the motor 3.
  • the cam 7 is driven by the spring force accumulated in the elastic member 19 to separate from the arc-shaped motion orbit of the actuating lever 8. Since the intermediate reduction gear 5 rotates slightly due to the spring force of the elastic member 19 after the motor 3 which is energized to unlock the door is deenergized, the gear noise generated while the intermediate gear is driven by the elastic member 19 can be reduced.
  • the intermediate reduction gear 5 can further rotate and stop gradually while bending the elastic member 19.
  • the shock applied to the intermediate reduction gear 5 and the pinion 4 generated when the cam stops is reduced so that resinous material may be used to the intermediate reduction gear 5 and pinion 4 as in the first embodiment.
  • Fig. 17 is a plan view illustrating an internal structure of a door-lock driving apparatus 1.
  • the cam 7 is made of a highly polymerized compound such as elastomer or elastic material such as rubber, and is formed integrally with the elastic member 19 described in regard to the second embodiment.
  • the cam 7 integrated with the elastic member 19 which is installed in the intermediate reduction gear 5 is illustrated in a cross-sectional view (a) and a plan view (b) of Fig. 18.
  • a perspective view illustrating the cam 7 integrated with the elastic member 19, a perspective view illustrating the intermediate reduction gear 5 and a perspective view illustrating the cam 7 installed in the intermediate reduction gear are respectively (a), (b) and (c) of Fig. 19.
  • Fig. 20 is a plan view illustrating a internal structure of a door-lock driving apparatus.
  • a reversible small motor 1 is a driving source.
  • a pinion 2 is fixed to a shaft 101 of the small motor 1 and rotates along with the shaft 101.
  • a helical gear (intermediate reduction gear) 3 is carried rotatably by the shaft 4 and engages with the pinion.
  • the helical gear 3 has a flat-plate projection 301 integrally formed therewith to extend in parallel with the shaft 4, and the shaft 4 penetrates the center of the projection 301.
  • the inner lever (torque transmitting member) 5 is is carried rotatably by an output shaft 6.
  • the inner lever 5 is secured solidly to an end of the output shaft 6 and rotates along with the output shaft.
  • Two projecting portions (torque receiving portions) 501 and 502 extending in the radial direction of the output shaft 6 and a spring retaining portion 503 are formed integrally at an end portion of the inner lever 5.
  • a U-shaped groove is formed at an end of the spring-retaining portion 503.
  • the inner lever 5 and the helical gear 3 are disposed so that the projecting portions 501 and 502 of the inner lever 5 face the projection 301 of the helical gear 3.
  • the projection 501 has a door-unlocking-side torque-receiving portion 501a and a stopper wall 501b to be pushed by the projection 301 of the intermediate reduction gear
  • the projection 502 has a door-locking-side torque-receiving-portion 502a and a stopper wall 502b pushed by the projection 301 of the intermediate reduction gear.
  • the stopper walls 501b and 502b move in an arc around the shaft 6.
  • a spring (elastic member) 7 has a U-shaped portion 701 in the center thereof and L-shaped portions 702 and 703 on the opposite sides thereof.
  • the U-shaped portion 701 is fitted into the U-shaped groove so that the spring 7 is fixed to the inner lever 5.
  • the spring 7 is fixed to the inner lever 5 in a manner that the L-shaped portions 702 and 703 extend from the projections 501 and 502 of the inner lever 5.
  • Cushions (regulating member) 801 and 802 are stoppers to restrict further rotation of the inner lever 5 and are made of elastic material so as to absorb the shock of the collision with the inner lever 5.
  • An end of the output lever (output portion) 9 is solidly fixed to the other end of the output shaft 6. Therefore, the output lever 9 rotates within the range restricted by the cushions 801 and 802 along with the inner lever 5.
  • the other end of the output lever 9 is connected to the door-lock unit DL.
  • the door-lock unit DL locks the door.
  • the door-lock unit DL unlocks the door.
  • the relationship between the rotating direction and the locking/unlocking condition may be reversed.
  • Fig. 22 through 28 illustrate the helical gear 3, the inner lever 5 the spring 7 and cushions 801 and 802 which are illustrated in Fig. 20.
  • Fig. 22 illustrates the same state as in Fig. 20 in which the inner lever 5 drives the door-lock unit DL to the door-locking state through the output lever 9.
  • the small motor 1 is energized and rotates the helical gear 3 in the direction indicated by an arrow C (door-unlocking direction) from the above state, an end portion 302 of the projection 301 abuts the projection 501 of the inner lever 5, thereby to transmit the rotating torque to the inner lever.
  • the rotating torque is transmitted to the projection 501. Thereafter, as shown in Fig. 25, the rotating torque is not transmitted any longer.
  • the inner lever 5 is driven by the door-lock unit DL, which is under operation of the door-unlocking and under motion of the inertia of the helical gear, to rotate in the direction to the cushion 802.
  • the inner lever 5 further rotates until it abuts the cushion 802 even after the projection 301 of the helical gear 3 leaves the inner lever 5 (as indicated by L).
  • the other end portion 303 of the projection 301 of the helical gear 3 abuts one of the L-shaped portion 703 and bends the spring 7 to the direction indicated by an arrow C as shown in Fig. 26 against the spring force.
  • the projection 301 abuts the other projection 502 of the inner lever 5
  • the rotation is restricted as shown in Fig. 27.
  • the spring 7 has accumulated energy to drive the helical gear by the other end portion 303 of the projection 301 in the direction opposite the arrow C until this state.
  • the inner lever 5 which is connected to the door-lock unit DL, has the door-locking-side torque-receiving portion 501 which the projecting portion 301 of the intermediate reduction gear 501a 7 abuts and the stopper wall 502b which is formed at the head portion moving in an arc, the cushion 802 restricts further movement of the inner lever 5 against the rotating torque exerted by the projecting portion 301, and the spring 7 is disposed in the path of the torque transmission.
  • the projecting portion 301 of the intermediate reduction gear presses on the door-unlocking-side torque-receiving-portion 501a to move the inner lever 5 toward the cushion 802 and leaves the generally arc-shaped operation orbit of the inner lever 5.
  • the projecting portion 301 subsequently pushes the cushion 802 while compressing the spring 703 thereby to deenergize the motor 1.
  • the motor 1 is energized to carry out the door-unlocking.
  • the intermediate reduction gear 3 When the motor 1 is deenergized thereafter, the intermediate reduction gear 3 is slightly moved due to the spring force of the L-shaped -portion 703 of the spring 7, accordingly the gear noise is significantly reduced.
  • the door-locking is also carried out by energizing the motor 1. In this case, since the intermediate reduction gear 3 is slightly moved due to the spring force of the L-shaped projecting portion 702 of the spring 7 after the motor 1 is deenergized as in the door-unlocking operation, the gear noise is reduced significantly.
  • the spring 7 has respective bends at the opposite ends of L-shaped portions 702 and 703, which abut the inner walls of the case 10 and function as the cushions 801 and 802, respectively.
  • the sixth embodiment has two rubber cushions 12 which are fixed to the inner lever 5 instead of the spring 7. They abut the inner walls of the case 10 and function as the cushion 801 and 802 in the same manner as shown in Fig. 29.
  • the cushions 12 illustrated in Fig. 30 may be combined together.
  • the cushions 801 and 802 may be left, naturally.
  • the elastic member can reduce the shock which is otherwise generated when the intermediate reduction gear operates.

Landscapes

  • Lock And Its Accessories (AREA)

Claims (7)

  1. Türverriegelungsantriebsgerät mit:
    einem Motor (3), der sich bei der Erregung dreht;
    einem Drehelement (5), das frei gedreht wird durch den Motor (3), und
    einem Drehmomentübertragungselement (7), das mit dem Drehelement (5) verbunden ist zum Übertragen der drehenden Kraft des Drehelements;
    einem Betätigungselement (8), das mit einer Türverriegelungseinheit (DL) verbunden ist zum Ausführen einer Türverriegelung und einer Türentriegelung und in Eingriff bringbar ist mit dem Drehmomentübertragungselement (7) zum Betätigen der Türverriegelungseinheit (DL), wenn es angetrieben wird durch das Drehmomentübertragungselement (7) zum Bewegen in einer bogenförmigen Bewegungsbahn zu einer Türverriegelungsrichtung oder einer Türentriegelungsrichtung,
    einem Begrenzungselement (16, 17), das angeordnet ist zum Begrenzen einer Bewegung des Betätigungselements (8) gegen das drehende Drehmoment, das ausgeübt wird durch das Drehmomentübertragungselement (7); und
    einem elastischen Element (6), das angeordnet ist zwischen dem Drehelement (5) und dem Drehmomentübertragungselement (7);
       dadurch gekennzeichnet, dass das Betätigungselement (8) ein erstes Element (8a, 8b) hat, um gedrückt zu werden durch das Drehmomentübertragungselement (7), und ein zweites Element (8d, 8e), das ausgebildet ist an einem Endabschnitt des Betätigungselements (8) zum Anhalten des Drehmomentübertragungselements bis der Motor entregt ist; und dass
       bei der Erregung des Motors (3) das Drehmomentübertragungselement (7) das erste Element (8a, 8b) des Betätigungselements (8) drückt und das Betätigungselement (8) antreibt gegen das Begrenzungselement (16, 17), dann die bogenförmige Bewegungsbahn des Betätigungselements (8) verlässt, anschließend das zweite Element (8d, 8e) drückt, während das elastische Element (6) gebogen wird, um den Motor (3) zu entregen, und sich wieder trennt von der bogenförmigen Bewegungsbahn des Betätigungselements (8) aufgrund der Federkraft, die in dem elastischen Element (6) gesammelt ist.
  2. Türverriegelungsgerät nach Anspruch 1, das des Weiteren ein manuell betätigtes Element (18) aufweist, das verbunden ist mit der Türverriegelungseinheit (DL) oder dem Betätigungselement (8), wobei
       beim Halten des manuell betätigten Elements (18) in einer Türverriegelungsposition das elastische Element (6) sich biegt, wenn es das drehende Drehmoment des Drehelements (5) aufnimmt, das sich bewegt zu dem Betätigungselement (8), das gehalten ist durch das manuell betätigte Element (18) und einen Stoß mildert, der aufgebracht wird auf das Drehelement (5), und wenn der Motor (3) entregt wird, hält das Drehmomentübertragungselement (7) an nachdem das Drehmomentübertragungselement (7) sich trennt von dem Betätigungselement (8) aufgrund einer Federkraft, die in dem elastischen Element (6) gesammelt ist.
  3. Türverriegelungsgerät nach Anspruch 1 oder 2,
    wobei
    das Drehelement ein Ritzel (4) aufweist, das angetrieben ist durch den Motor (3) und ein Zwischenreduktionsrad (5);
    wobei das Drehmomentübertragungselement (7) angeordnet ist, um relativ zu dem Zwischenreduktionsrad (5) drehbar zu sein um eine zentrale Achse (14) des Zwischenreduktionsrads (5) herum; und
    wobei das elastische Element eine Schraubenfeder (6) aufweist, die gehalten ist durch das Zwischenreduktionsrad (5) bei ihrem einen Ende und gehalten ist durch das Drehmomentübertragungselement (7) bei dem anderen Ende.
  4. Türverriegelungsgerät nach Anspruch 1 oder Anspruch 2, wobei
    das Drehelement (5) ein Ritzel aufweist, das angetrieben ist durch den Motor (3) und ein Zwischenreduktionsrad (5);
    wobei das Drehmomentübertragungselement (7) angeordnet ist, um drehbar zu sein relativ zu dem Zwischenreduktionsrad (5) um eine zentrale Achse (14) des Zwischenreduktionsrads (5) herum, und
    wobei das elastische Element (19) hergestellt ist aus einer hochpolymeren Verbindung, wie beispielsweise einem Elastomer oder einem elastischen Material, wie beispielsweise Gummi, und angeordnet ist zwischen dem Zwischenreduktionsrad (5) und dem Drehmomentübertragungselement (7).
  5. Türverriegelungsgerät nach Anspruch 4,
       wobei das Drehmomentübertragungselement (7) ein einstückiges elastisches Element (19) aufweist, das hergestellt ist aus einer hochpolymeren Verbindung, wie beispielsweise einem Elastomer oder einem elastischen Material, wie beispielsweise Gummi.
  6. Türverriegelungsantriebsgerät mit:
    einem Ritzel (2), das durch einen Motor (1) angetrieben ist;
    einem Zwischenreduktionsrad (3), das sich in Eingriff befindet mit dem Ritzel und durch das Ritzel angetrieben ist;
    einem Betätigungselement (5) mit einem Drehmomentaufnahmeabschnitt (501a, 502a) an einem Ende und einem Abschnitt bei dem anderen Ende, der fixiert ist an dem Drehmomentaufnahmeabschnitt (501a, 502a) und verbunden ist mit einem Ausgangselement (9) zum Ausführen des Türverriegelungsvorgangs;
    einem Begrenzungselement (801, 802) zum Begrenzen einer Bewegung des Betätigungselements (5) gegen das übertragene Drehmoment; gekennzeichnet durch einen Vorsprung (301), der sich mit dem Zwischenreduktionsrad dreht zum Übertragen eines drehenden Drehmoments des Zwischenreduktionsrads; und ein elastisches Element (7), das angeordnet ist zwischen dem Vorsprung (301) des Zwischenreduktionsrads und dem Drehmomentaufnahmeabschnitt (501a, 502) des Betätigungselements (5) zum Erzeugen einer Antriebskraft, um den Vorsprung (301) von dem Betätigungselement (5) durch Biegen zu trennen.
  7. Türverriegelungsantriebsgerät nach Anspruch 1, wobei die elastische Kraft gesammelt wird durch das elastische Element (6), wenn der Motor (3) erregt ist, während das Drehmomentübertragungselement (7) angehalten wird durch das zweite Element (8d, 8e) und das Drehmomentübertragungselement (7) angetrieben wird durch die gesammelte elastische Kraft, wenn der Motor (3) entregt ist.
EP95902294A 1993-12-10 1994-12-01 Türschliessantrieb Expired - Lifetime EP0684356B1 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP31045993 1993-12-10
JP31045993 1993-12-10
JP310459/93 1993-12-10
JP225319/94 1994-09-20
JP22531994 1994-09-20
JP22531994 1994-09-20
PCT/JP1994/002030 WO1995016093A1 (fr) 1993-12-10 1994-12-01 Mecanisme d'entrainement d'une serrure de porte

Publications (3)

Publication Number Publication Date
EP0684356A1 EP0684356A1 (de) 1995-11-29
EP0684356A4 EP0684356A4 (de) 1996-12-18
EP0684356B1 true EP0684356B1 (de) 2000-05-24

Family

ID=26526565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95902294A Expired - Lifetime EP0684356B1 (de) 1993-12-10 1994-12-01 Türschliessantrieb

Country Status (3)

Country Link
EP (1) EP0684356B1 (de)
DE (1) DE69424654T2 (de)
WO (1) WO1995016093A1 (de)

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DE4439479A1 (de) * 1994-11-08 1996-05-09 Bocklenberg & Motte Bomoro Kraftfahrzeug-Türverschluß mit Zentralverriegelungsantrieb
DE19747211C2 (de) * 1997-10-25 2000-02-17 Bosch Gmbh Robert Kleine motorische Antriebseinrichtung für ein bewegliches Funktionselement in einem Kraftfahrzeug
DE19913666B4 (de) * 1999-03-25 2010-08-05 Witte-Velbert Gmbh & Co. Kg Motorisch öffenbarer Drehfallenverschluß, insbesondere für Heckklappen von Kraftfahrzeugen
DE19927842A1 (de) * 1999-06-18 2001-01-04 Bosch Gmbh Robert Elektromotorischer Stellantrieb für ein Kraftfahrzeugschloß
GB0019017D0 (en) 2000-08-04 2000-09-27 Meritor Light Vehicle Sys Ltd Actuator
DE10125093A1 (de) 2001-05-23 2002-12-12 Siemens Ag Antriebseinrichtung
GB0324576D0 (en) * 2003-10-22 2003-11-26 Arvinmeritor Light Vehicle Sys Actuator assembly
DE102004049401A1 (de) * 2004-10-08 2006-04-13 Kiekert Ag Kraftfahrzeugtürverschluss
DE202004015779U1 (de) * 2004-10-11 2006-02-16 Brose Schließsysteme GmbH & Co.KG Stellantrieb in einem Kraftfahrzeug
FR2925564A1 (fr) * 2007-12-20 2009-06-26 Valeo Securite Habitacle Sas Dispositif de condamnation et de decondamnation d'une porte de vehicule automobile
KR101173465B1 (ko) * 2010-01-29 2012-08-13 (주)엔티텍 도어 안전 장치
JP5923789B2 (ja) 2012-04-05 2016-05-25 三井金属アクト株式会社 アクチュエータユニット
DE102013019938A1 (de) * 2013-10-14 2015-04-16 Kiekert Ag Verriegelungseinheit für ein Kraftfahrzeug
JP6471600B2 (ja) * 2015-04-23 2019-02-20 アイシン精機株式会社 車両用ドアロック装置
DE102018101074A1 (de) * 2018-01-18 2019-07-18 Kiekert Ag Schließsystem für eine Tür oder Klappe eines Kraftfahrzeugs

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JPS57172083A (en) * 1981-04-15 1982-10-22 Nissan Motor Door lock manipulating apparatus
FR2580716B1 (fr) * 1985-04-18 1987-05-29 Signal Vision Sa Actionneur electro-mecanique a commande par moteur electrique par demi-tour
KR930000850B1 (ko) * 1986-12-26 1993-02-06 가부시끼가이샤 안세이고오교오 자동차용 도어 로크장치
JP2606270B2 (ja) * 1988-03-31 1997-04-30 アイシン精機株式会社 ドアロック装置
US5079964A (en) * 1989-05-25 1992-01-14 Mitsui Kinzoku Kogyo Kabushiki Kaisha Actuator for door locking apparatus for vehicle

Also Published As

Publication number Publication date
EP0684356A4 (de) 1996-12-18
WO1995016093A1 (fr) 1995-06-15
DE69424654D1 (de) 2000-06-29
DE69424654T2 (de) 2001-01-25
EP0684356A1 (de) 1995-11-29

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