Definitions

• the present invention relates to a door lock drive device for performing a door lock drive operation for locking and unlocking a car door.
• a pinion fixed to the shaft is disposed, and an intermediate gear having an engagement projection is fitted to the pinion and the pin.
• An elastic body is rotatably arranged with respect to the intermediate gear around the rotational shaft of the intermediate gear, and one end of the elastic body is operated for operating the lever of the door lock body. It is fixed to the output shaft, has an engagement projection at the other end, and swings between the first position (one stop) and the second position (the other stop).
• a rocking member is provided, and the engagement projection of the intermediate gear and the engagement projection of the rocking member are disposed so as to be engageable with and disengageable from the elastic body, respectively.
• a door lock drive unit Japanese Patent Application Laid-Open No. 2-4 9 8 8 1
• Japanese Patent Application Laid-Open No. 2-4 9 8 8 1 has been proposed that can perform unlocking operation with a small operating force and does not make an operation sound. You are
• the elastic body is coil spring, and one of the two radially protruding tips is the engagement of the intermediate gear.
• the projection is engaged, the other is engaged with the engagement projection of the rocking member, and the angle between the tips is approximately 180 degrees, and the middle shaft is in the middle.
• An elastic body is rotatably disposed on the intermediate gear as a core, and the intermediate gear is rotationally driven via the pinion by the rotation of the motor, and the engagement protrusion portion of the intermediate gear By contact with one of the elastic bodies, the intermediate gear is rotated.
• the body begins to flex, and in addition, the other elastic body abuts against the engaging projection of the rocking member to rock the rocking member until it abuts on any stopper.
• the intermediate gear rotates approximately 180 degrees through the engagement projections of the intermediate gear by the inertia force of the elastic body, so the intermediate gear and pinion are rotated. There is a problem that gear noise is generated between the two ons.
• the present invention has been made based on the above-mentioned circumstances, and after activating the motor, locking or unlocking the motor, and stopping the energization of the motor.
• the purpose is to provide a door lock drive device that can reduce gear noise generated when rotating an intermediate gear with an elastic body. Disclosure of the invention
• a motor which rotates in response to electric current, a rotary member which freely rotates in response to the rotational force of the motor, and a rotary member of the rotary member It is connected to the torque transmission member that transmits the torque and the door lock body that locks or unlocks the door, and the torque transmission member receives the rotation torque from the torque transmission member and the lock side And a first pressing portion that is pressed by the torque transfer member when the door lock main body is operated by moving to the unlocking side;
• the movement of the actuating member is supported by the actuating member having the second pressing portion formed at the tip portion to be moved in a substantially arc shape, and the rotary torque received from the torque transmitting member.
• Control means for restricting the heat transfer between the rotating member and the actuating member And an elastic member disposed in a path, wherein when the motor is energized, the torque transfer member presses a first pressing portion of the actuating member, and the actuating member is directed toward the restricting means.
• the movement of the actuating member is restricted by the restricting member while being moved to the first position, and the torque transfer member temporarily separates from within the substantially arc-shaped movement locus of the actuating member, and then
• the elastic force stored in the inertia member after the energization of the motor is stopped by pressing the second pressing member while bending the torque transmitting member while bending the elastic member.
• Transmission of the torque according to A door opening and closing drive device is used, which is characterized in that the member is separated from the substantially circular movement path of the actuating member.
• the actuating member connected to the door lock body is moved in a substantially arc shape with the first pressing portion pressed by the torque transfer member.
• the restricting member restricts the movement of the actuating member against the rotating torque received from the torque transfer member, and the rotating member and the actuating.
• the torque transfer member is temporarily disengaged from the substantially arc-shaped moving track of the actuating member while being moved to the next, and then the second pressure is caused while the torque transfer member bends the elastic member.
• the elastic part Since the torque transfer member is disengaged from the substantially arc-shaped moving path of the actuating member by the stored elastic force, the motor is operated to lock or unlock the member.
• the elastic force of the elastic member causes the rotating member to rotate only slightly, so when rotating the rotating member with the elastic member You can reduce the gear noise that occurs in the
• the door lock main body or the manual operation means connected to the actuating member is provided, and the manual operation means is locked in a locked state.
• the elastic member receives the rotation torque of the rotating member against the actuating member whose movement is inhibited by the manual operation means, causing elastic deformation.
• the impact force applied to the rotating member is relieved by performing the torque transfer, and the torque transmitted by the elastic member is used to transmit the torque after the energization of the motor is stopped.
• a door lock drive unit is adopted which is characterized in that the member is stopped when the member is detached from the working member.
• the manual operation means is locked in a locked state, and even when the motor is energized, the manual operation means prohibits movement against the actuating member. Then, the elastic member receives the rotating torque of the rotating member and elastically deforms, thereby reducing the impact force applied to the rotating member via the torque transmitting member. Also, after energization of the motor is stopped, the torque transmitting member stops due to the elastic force stored in the elastic member from being released from the actuating member, and then, The manual operation reduces the operation force when operating the door lock body.
• the rotating member includes a pinion which is rotationally driven by the motor and an intermediate reduction gear which rotates together with the pinion, and the torque is
• the transmission member is provided so as to be rotatable relative to the intermediate reduction gear about the central axis of the intermediate reduction gear, one of the elastic members is engaged with the intermediate reduction gear, and the other end is
• a door opening drive device characterized in that the spring coiling is locked to the torque transfer member is adopted.
• the torque of the motor is transmitted to the intermediate reduction gear through the pinion, and the torque is torque through the elastic spring member. It is transmitted to the transmission member. Then, the torque transmitting member receives the rotational torque from the torque transmitting member, and the actuating member moves to the locking side or the unlocking side, so that the door to which the actuating member is connected is connected. The body of the mouth locks or unlocks the door.
• the spring stored in the coil spring may cause the torque to move. Since the Lk transmission member stops in the state of being separated from the actuating member, the operation force at the time of manual operation is reduced.
• the rotary member includes a pinion which is rotationally driven by the motor, and an intermediate reduction gear which rotates while being engaged with the pinion.
• the transmission member is provided so as to be rotatable relative to the intermediate reduction gear centering on the central axis of the intermediate reduction gear, and one end of the elastic member is engaged with the intermediate reduction gear, and the other end is
• a door lock drive unit is adopted, which is characterized in that it is a spring coiling that is locked to the torque transfer member.
• the rotational force of the motor is transmitted to the intermediate reduction gear through the pinion, and it is further composed of an elastic polymer material such as elastomer or an elastic material such as rubber.
• the torque is transmitted to the torque transmission member via the elastic member.
• the operating member is connected to the door by receiving the rotating torque from the torque transmitting member and moving the operating member to the locking side or the unlocking side.
• the body of the mouth locks or unlocks the door.
• the elastic member Since the movement of the actuating member moved to the locking side or the unlocking side is restricted by the restriction means, the elastic member receives the rotation torque of the intermediate reduction gear in a state of being fixed in part and is resilient. It is twisted in the direction of rotation of the intermediate reduction gear while storing torque. As a result, when movement of the actuating member is regulated by the regulation means, the impact force applied to the pinion through the torque transmission member and the intermediate reduction gear is alleviated. . As a result, the effect of cost down due to resinification of the pinion and the intermediate reduction gear is the same as the effect described above.
• the torque transfer member may be integrally formed with the elastic member by an elastic polymer material such as elastic rubber or an elastic material such as rubber.
• Adopt a door lock drive that is characterized by this configuration, the torque transfer member is formed of an elastic polymer material such as elastomer, or a flexible material such as rubber, so that the torque transfer member can be formed into an elastic member and a body.
• the pinon which is rotationally driven by the motor and the pinonon are combined with each other.
• the intermediate reduction gear to which torque is transmitted, a projection that rotates integrally with this intermediate reduction gear, and a torque transmission part that moves torque from the projection at one end to move.
• the other end is fixed to this torque transmission part, and the torque transmission member fixed to the output part which operates the door opening and the transmission from the projection part
• a control member which is mounted on a torque to control movement of the torque transfer member;
• the intermediate reduction gear is disposed so as to be sandwiched between the projection of the intermediate reduction gear and the torque transmission portion of the torque transmission member, and the projection and the interlayer are interposed between the projection and the flexure.
• Employing an elastic body that generates a biasing force in the direction that separates it from the torque transfer unit is adopted as a technical means.
• the torque of the intermediate reduction gear is transmitted to the torque transmission member through the projection and the torque transmission portion, but the movement of the torque transmission member is caused by the restriction portion.
• the elastic body located between the projection and the torque transfer part flexes to generate a biasing force that separates the two.
• the biasing force generated on the elastic body separates the projection from the torque transfer part, thereby reducing the operation force when manually operating the door opening.
• FIG. 1 is a plan view showing the internal structure of the door lock drive apparatus according to the first embodiment.
• Figure 2 is a side cross-sectional view of the door lock drive (see 1 Example).
• Fig. 3 is a graph showing the load characteristics of the door lock body (the first embodiment).
• Fig. 4 is an explanatory view of the operation of the door lock drive unit (first embodiment).
• Fig. 5 is an explanatory view of the operation of the door lock drive unit (first embodiment).
• Fig. 6 is an explanatory view of the operation of the door lock drive unit (first embodiment).
• Fig. 7 is an explanatory view of the operation of the door lock drive unit (first embodiment).
• Fig. 8 is an explanatory view of the operation of the door lock drive unit (first embodiment).
• Fig. 1 is a plan view showing the internal structure of the door lock drive apparatus according to the first embodiment.
• Figure 2 is a side cross-sectional view of the door lock drive (see 1 Example).
• Fig. 3 is
• FIG. 9 is an explanatory view of the operation of the door lock drive unit (first embodiment).
• Fig. 10 is an explanatory view of the operation of the door opening drive device in a state where the manual knob is restrained (first embodiment).
• Fig. 11 is an explanatory view of the operation of the door opening drive device with the manual knob restrained (first embodiment).
• Fig. 12 is an explanatory view of the operation of the door lock drive device in a state where the manual knob is restrained (the first embodiment).
• Fig. 13 is an explanatory view of the operation of the door lock drive unit with the manual knob restrained (first embodiment).
• FIG. 14 is a plan view showing the internal structure of the door lock drive apparatus according to the second embodiment.
• FIG. 15 is a sectional view and a plan view of an intermediate reduction gear, a cam, and an elastic body (a second embodiment).
• Fig. 16 is a perspective view of the intermediate reduction gear, cam, and elastic body (the second embodiment).
• FIG. 17 is a plan view showing the internal structure of the door lock drive apparatus according to the third embodiment.
• FIG. 18 is a sectional view and a plan view of an intermediate reduction gear, a cam, and an elastic body (third embodiment).
• FIG. 19 is a perspective view of an intermediate reduction gear, a cam and an elastic body (third embodiment).
• FIG. 20 is a plan view showing the internal structure of the door lock drive apparatus according to the fourth embodiment.
• FIG. 21 is a cross-sectional view taken along the line II-II in FIG. Fig.
• FIG. 22 is an explanatory diagram of the operation of the door lock drive unit (fourth embodiment).
• Fig. 2 3 is an illustration of the operation of the door lock drive unit (fourth embodiment).
• Figure 24 shows the operation of the door lock drive system (fourth embodiment).
• Fig. 25 shows the operation of the door lock drive system (fourth embodiment).
• Fig. 26 shows the operation of the door lock drive unit (fourth embodiment).
• Fig. 27 is an explanatory diagram of the operation of the door lock drive unit (the fourth actual Example).
• Fig. 28 shows the operation of the door lock drive unit (fourth embodiment).
• Figure 29 is a plan view showing the door lock drive unit (fifth embodiment).
• Figure 30 is a plan view showing the door lock drive unit (sixth embodiment).
• FIG. 1 is a plan view showing the internal structure of the block drive 1
• FIG. 2 is a door
• FIG. 6 is a side cross-sectional view of the D-ck drive device 1; Note that Figure 1 (b) and Figure 4
• the door lock drive device 1 of this embodiment is a door lock mechanism for operating the door main body DL for locking or unlocking the door, Case 2 which is divided into two parts: lower case 2 a and air package 2 b, motor 3 which can be rotated forward or reverse, pinion 3 which is rotationally driven by motor 3 4, an intermediate reduction gear 5 that rotates in unison with this pinion 4, and a screw coil 6 attached to the intermediate reduction gear 5 (hereinafter referred to as “spline”) (Abbreviated as “6”), a motor 7 to which the rotational force of the intermediate reduction gear 5 is transmitted via this spring 6, and a torque 7 operated by receiving the torque of the motor 7 It consists of an operating lever 8 and an output valve 9 linked with this operating lever 8.
• the lock body DL is connected to the lock driving device 1 through a lock lever 1 10 that controls locking and unlocking.
• the lock lever 1 0 is a lock position for locking the door centering on the fulcrum shaft 1 1 provided on the main body DL of the door lock and a door lock that unlocks the door It is provided so as to be pivotable between the chuck position and the door lock drive device 1.
• the door opening body DL is produced by the flip-flop f1 which is mounted between the lock lever 1 and the opening lever 2 1 In this way, the load reverses in the middle of operation and biases the drive locker 1 in that direction. Have a characteristic.
• Motor 3 is energized via terminal 1 3 (see Fig. 2) taken out of case 2 and the direction of rotation reverses between locking and unlocking. It will
• the pinon 4 has a D-cut hole formed at its center of rotation, and is detachably engaged with a D-force notch formed on the rotary shaft 3 a of the motor 3, It rotates in unison with the rotary shaft 3 a.
• the intermediate speed reduction gear 5 is rotatably engaged with the shaft 14 forming the rotation center.
• the boss 5a and the pinon 4 are engaged with each other 5b
• the inner wall of the joint portion 5b is composed of a locking wall 5c projecting in an arc along the axial direction (parallel to the shaft 14).
• the spring 6 passes between the joint portion 5b of the intermediate reduction gear 5 and the locking wall 5c, and is formed on the inner peripheral surface of the joint portion 5b. Both ends are bent inward (toward the center) when placed along the groove, and the locking wall 5 c of the intermediate reduction gear 5 is inserted between the ends. It is mounted on the intermediate reduction gear 5 in the normal state.
• Cam 7, as shown in Fig. 2 is rotatably fitted to shaft 14 by facing the intermediate reduction gear 5 in the axial direction. Further, on one end face side of the cam 7 facing the intermediate reduction gear 5, a locking wall 7 a having a circular arc shape around the shaft 14 is projected along the axial direction. ing. However, the locking wall 7 a is positioned between the boss portion 5 a of the intermediate reduction gear 5 and the locking wall 5 c in the radial direction centering on the shaft 14, and the middle reduction gear The arc length is set smaller than the 5 locking walls 5c. As shown in FIG. 1 (b), the cam 7 is inserted with the locking wall 7 a between the ends of the spring 6, that is, the shaft 1.
• the operation lever 8 has an output shaft 15 fixed at one end thereof and two stops with the output shaft 15 as a rotation center. It is provided so as to be pivotable within a predetermined range regulated by the connectors 16 and 17 (regulating means).
• Output shaft 1 5 is rotatably supported by locus 2 a and heat sink 2 b.
• the actuating levers 8 are provided with torque receiving portions 8 a and 8 b at their tips that extend substantially in a fan shape around the output shaft 15, and the torque receiving portions 8 a and 8 b are provided.
• output shaft 1 With 5 as the rotation center it rotates between the locked position (the position shown in Fig. 1) and the unlocked position (the position shown in Fig. 6 to Fig. 9).
• the lock receiving sections 8a and 8b are each provided with a lock side lock receiving section 8a for receiving the rotational lock of the cam 7 when the door lock is locked by the door lock main body DL, and the door It consists of an unlocking side torque receiving section 8b that receives the rotating torque of cam 7 when the door is unlocked by the lock body DL. Also, a curved recess 8 c is formed between the lock side torque receiving portion 8 a and the unlocking side torque receiving portion 8 b in order to prevent interference with the cam 7. .
• the outer wall of the lock side torque receiving section 8 a and the unlocking side torque receiving section 8 b is continuous with the cam when the operation lever 8 rotates to the lock position fi or unlock position. It enters into the 7 rotation path, and when the side wall surface of cam 7 abuts, it functions as a stopper wall 8 d, 8 e that restricts the rotation of force 7.
• the stopper walls 8 d and 8 e move in a substantially circular arc centering on the output shaft 1 5.
• the working lever 8 receives the turning torque of the cam 7 on the side wall surface of the working lever 8 connected from the respective stopper walls 8 d and 8 e, and the locking position or unlocking is performed.
• Locking grooves 8 f and 8 g are provided to engage and stop the studs when rotating to the position.
• the stalls, ° 16 and 17 are located at symmetrical positions with respect to the straight line connecting the output shaft 15 and the shaft 14.
• the straps 16 and 17 are formed of an elastic member (for example, made of rubber) so as to absorb the impact when the actuation lever 8 abuts.
• the output lever 9 is formed in an L shape, and a fitting portion (not shown) formed at the bent portion is formed at the end of the output shaft 1 5 1 5 Locks to a (see Fig. 2) and rotates together with output shaft 1 5 (operating lever 8).
• One end of the output lever 9 is connected to a manual knob 18 for manually operating the door lock main body DL, and the other end is connected to the lock main body DL It is linked to the check lever 1 0 (see Figure 1 and Figure 2).
• cam 7 detached from the unlocking side torque receiver 8b rotates until it abuts against the wall 8d of the working lever 8 (see Fig. 6). While the cam 7 stops rotating by coming into contact with the stopper wall 8d, the intermediate reduction gear 5 does not bend the spring 6 locked to the retaining wall 5c. Then, it rotates further and stops gently (see Fig. 7 (b)).
• the actuating lever 8 connected to the door lock main body DL is moved in a substantially arc shape with the unlocking side torque receiving portion 8 b to be pressed by the cam 7. It has a wall 8d formed on the tip to be inserted, and against the rotation torque received from the cam 7, the stopper 17 restricts the movement of the lever 8
• the cam 7 is activated when the motor 3 is energized, since the spring spring 6 is disposed in the torque transmission path between the pinion 4 and the operation lever 8. After pressing the unlocking side torque receiving part 8 b of No. 1 8 and moving the operating lever 8 in the direction of the slider 1 7, the cam 7 once temporarily forms the operating lever 8 as an approximate circle.
• the intermediate reduction gear 5 does not move the spring 6. While flexing, it can rotate and stop gently. That is, the spring 6 may absorb the impact force when the cam 7 abuts against the sliding wall 8d of the actuating lever 8 by the bending of the spring 6. It will come. As a result, since the impact force applied to the intermediate reduction gear 5 and the pinion 4 is alleviated when the rotation of the cam 7 is stopped, the intermediate reduction gear 5 and the pinion 4 can be made of resin. As a result, it is possible to achieve cost down.
• the cam 7 can be stopped in a state where it is detached from the stopper wall 8 d of the operation lever 8, and the manual knob
• the operating lever 8 can be operated without sliding it with the cam 7, so the operating force of the manual knob 1 8 is reduced.
• the cam 7 is unlocked in one direction with the intermediate reduction gear 5 under the rotational force of the motor 3. It turns (counterclockwise in Fig. 10) and abuts on the unlocking side notch 8 b of the operating lever 18.
• the operation lever 8 receives rotational torque from the cam 7 but moves to the unlocking side from the force that the manual knob 18 is restrained. Therefore, cam 7 stops in contact with the unlocking side torque receiver 8 b of the operating lever 8 (see Fig. 10).
• the intermediate reduction gear 5 does not bend the spring 6 but rotates further and stops gently (see Fig. 1 1).
• the cam 7 abuts on the unlocking side torque receiving portion 8 b of the operating lever 8.
• the intermediate reduction gear 5 can rotate slowly and stop with the bending force of the spring 6.
• the cam 7 is released from the unlocking side lock receiving portion 8 b of the operating lever 8 and then stops in the state of being released manually.
• the operation lever 18 can be operated without sliding the cam 7 with the cam 7 so that the operation of the manual knob 18 is possible. The power will be reduced.
• Figure 14 is a plan view showing the internal structure of the door opening drive 1.
• a substitute for the coil spring 6 disposed as an elastic member between the intermediate reduction gear 5 and the cam 7 in the first embodiment.
• an elastic body 19 made of an elastic polymer such as elastomer or an elastic material such as rubber (see FIGS. 15 and 16).
• the components other than the intermediate reduction gear 5, cam 7, and elastic body 19 are the same as those of the first embodiment, and thus the description thereof is omitted.
• FIG. 15 is a perspective view and an overall perspective view of a rubber 7 and an elastic body 1 9;
• the intermediate reduction gear 5 has a boss 5 a and a joint 5 b as in the first embodiment, and the movement (rotation) of the elastic body 1 9 is made on the inner peripheral surface of the joint 5 b.
• a restricted contact surface 5 d is formed.
• the abutment surface 5 d is formed in two planes corresponding to the rotation direction (forward and reverse) of the motor 3. Further, on one side surface of the intermediate reduction gear 5 (upper surface in FIG. 16 (c)), a step portion 5 e is formed which is recessed inward over the entire circumference.
• cam 7 has a disc portion 7 c formed with a predetermined radius centering on the fitting hole 7 b fitted to the shaft 14.
• a rod-like protrusion 7 d is provided on one side of the disk 7 c and is provided on the body.
• the cam 7 is rotatably fitted to the fitting hole 7 b by force and the disc portion 7 c is fitted to the step portion 5 e of the intermediate reduction gear 5.
• a slight gap f3 ⁇ 4 is formed between the two so that the outer peripheral surface of the disk portion 7 c does not interfere with the inner peripheral surface of the step portion 5 e (see FIG. 16 (d). ).
• the elastic body 1 9 is rotatably fitted to the boss portion 5 a of the intermediate reduction gear 5 and disposed on the inner peripheral portion of the intermediate reduction gear 5.
• the elastic body 19 is formed with a flat outer peripheral wall 19 a, and the outer peripheral wall 19 a is formed with the intermediate reduction gear 5.
• the rotational force of the intermediate reduction gear 5 is received while in contact with the contact surface 5 d.
• the elastic body 19 is provided with a fitting hole 19 b in which the projection 7 d provided on the cam 7 is fitted. 1 G
• the pinion 4 is rotationally driven by the motor 3, and the intermediate reduction gear 5 that is in mesh with the pinion 4 is rotated.
• the rotational torque of the intermediate reduction gear 5 is transmitted to the cam 7 through the elastic body 19, so that the cam 7 generates the intermediate reduction gear 5 and the elastic body 19. Rotate together in the unlocking direction.
• the unlocking side torque receiving portion 8 b is moved according to the cam shape.
• the operation lever 8 rotates from the locked position to the unlocked position centering on the output shaft 15.
• the cam 7 detached from the unlocking torque receiving section 8 b by the rotation of the operating lever 8 is rotated until it abuts against the flange 8 d of the operating lever 8. .
• the cam 7 stops rotating on contact with the stopper wall 8d, but the intermediate reduction gear 5 further rotates while gently rolling on the elastic body 1 9 and stops gently.
• the unlocking side torque receiving portion 8 b to be pressed by the cam 7 is transferred to a substantially arc shape. It has a sliding wall 8d formed at the tip to be moved, and the sliding shaft 1 7 operates to move the lever 8 against the rotating torque received from the cam 7
• the cam 7 unlocks the operating lever 8 when the motor 3 is energized. While pressing the side torque receiving portion 8 b and moving the operating lever 8 in the direction of the stopper 17, the cam 7 is temporarily moved within the substantially arcuate movement trajectory of the operating lever 8.
• the actuating lever 18 flexes the elastic body 1 9
• the cam 7 is operated by the elastic force stored in the elastic body 19. Since the motor 3 is released from the arc-shaped moving path, the motor 3 is operated and unlocked, and the motor 3 is de-energized. Then, the elastic force of the elastic body 19 causes an intermediate movement. Since the reduction gear 5 is only slightly rotated, the gear noise generated when the intermediate reduction gear 5 is rotated by the elastic body 19 can be reduced. At the time of locking, as in the case of unlocking, after the motor 3 is operated and locked, and energization of the motor 3 is stopped, the elasticity of the elastic body 19 causes the lock to occur. Since the intermediate reduction gear 5 is only slightly rotated, the gear noise generated when the intermediate reduction gear 5 is rotated by the elastic body 19 can be reduced.
• the operator stops the manual knob 1 8 from stopping when the cam 7 is disengaged from the top wall 8 d of the operation lever 8.
• the operating lever 18 can be operated without sliding it against the cam 7 so that the operating force of the manual knob 18 is reduced. The same effect as in the first embodiment can be obtained even when the motor 3 is energized with the manual knob 18 restrained in the lock position. Ru.
• FIG 17 is a plan view showing the internal structure of the door opening drive unit 1.
• the cam 7 is made of an elastic polymer material such as an elastic material or an elastic material such as rubber, and is described in the second embodiment. It is integrated with the elastic body 1 9 shown.
• FIG. 18 Cross sections and a plan view of the cam 7 integrated with the elastic body 19 assembled to the intermediate reduction gear 5 are shown in Figs. 18 (a) and (b).
• Fig. 1 is a perspective view of cam 7 integrated with elastic body 19, a perspective view of intermediate reduction gear 5, and a perspective view of a state where cam 7 is assembled to intermediate reduction gear 5, respectively. 9 (a), (b) and (c).
• this embodiment is the same as that of the second embodiment, but in addition to the effects obtained in the second embodiment, the cam 7 and the elastic body 19 are integrated to form an integrated circuit. It has the effect of reducing the number of parts.
• Figure 20 is a plan view showing the internal structure of the door opening drive.
• the small motor 1 capable of forward and reverse rotation is a drive source.
• a pinon 2 is fixed to the shaft 1 of this small motor 1 and this pinon 2 rotates integrally with the shaft 1.
• the helical gear (intermediate reduction gear) 3 is rotatably supported by the shaft 4 and is in mesh with the pinon 2.
• the helical gear 3 has a plate-like projection portion 301 projecting parallel to the shaft 4 from one side thereof. A shaft 4 penetrates to the center of this projection 301.
• the inner lever (torque transfer member) 5 is rotatably supported by the output shaft 6.
• the inner lever 5 is non-rotatably fixed to the output shaft 6 at one end of the output shaft 6 and rotates with the output shaft 6.
• Ru also, at one end of the inner lever 5, two projections (torque transmission parts) 50 1 and 50 2 protruding in the direction of the output shaft 6 in the suspicious direction, and an output shaft
• a spring pressing portion 5 0 3 projecting in parallel with 6 is integrally formed with.
• a U-shaped groove is provided at the end of the spring pressing part 5 0 3.
• the inner lever 1 and the helical gear 3 are arranged so that the protrusions 5 0 1 and 5 0 2 of the inner lever 5 and the protrusion 3 0 1 of the helical gear 3 are opposed to each other. Yes.
• the protrusion 5 0 1 has the unlocking side
• the stopper wall 5 0 1 b is pressed by the projection 5 0 1 a of the middle racket and the projection 3 0 1 of the intermediate speed reduction gear
• the projection 5 0 2 has a lock side It is a raised wall 5 0 2 b pressed by the torque receiving portion 5 0 2 a and the protrusion 3 0 1 of the intermediate reduction gear.
• the top walls 5 0 1 b and 5 0 2 b move in a substantially arc shape centering on the output shaft 6.
• the spring (elastic body) 7 has a U-shaped portion 7 0 1 at the central portion and L-shaped portions 7 0 2 and 7 0 3 at both end portions of the U-shaped portion 7 0 1 .
• the spring 7 is fixed to the inner lever 5 by the U-shaped portion 7 0 1 being fitted into the U-shaped groove of the spring pressing portion 5 0 3 It is being done.
• Spring 7 has the L-shaped portions 70 2 and 7 0 3 protruding from the ends of the projections 5 0 1 5 1 and 5 0 2 of the inner lever 5 inward. It is fixed to the library 5.
• the cushions (regulating members) 801 and 8002 are for defining the rotation range of the inner lever '5, and when contacting the inner lever 5 It is formed of an elastic member that can absorb the impact of
• One end of the output lever (output section) 9 is fixed to the other end of the output shaft 6 so as not to be rotatable relative to the output shaft 6. Therefore, this output carno one 9 rotates in the rotation range regulated by the cushions 80 1 and 80 2 together with the inner leno 1 and 1 5 .
• the other end of the output lever 9 is connected to the door opening main body DL, and is rotated in the direction of the arrow A so that the inner lever 5 is in contact with the cushions 80 1 and 80 2.
• the door lock body DL In the state of contact (the state shown in Fig. 20), the door lock body DL is locked, and it is turned in the direction of arrow B and the inner lever-5 force cushion is applied. In the state of contact, the door lock body DL is unlocked. The relationship between the direction of rotation and locking / unlocking may be reversed o
• the gist of the present invention is a helical gear 3, an inner lever 5 and a spring 7, focusing on their operation, as shown in FIGS. 2 to 8. It explains based on.
• Fig. 20 to Fig. 28 have the following structure: gear 3, inner lens 5, spring 7, and cushion 8. It is a figure shown by citing only 0 1 and 80 2.
• Fig. 22 shows the same state as Fig. 20, that is, the state in which the door lock main body D L is locked via the output lever 9 by the inner lever 5. From this state, when small size motor 1 is energized to rotate helical gear 3 in the direction of arrow C (locking direction), as shown in Fig. 23, 3 It is possible to transmit rotational force to the inner lever 5 by using the protrusion 5 0 1 with one end 3 0 2 2 abutting against one protrusion 5 0 1 of the inner lever 1 5 When the helical gear 3 is further rotated, the transmission of the rotational power by the contact with the protuberance portion 501 is completed through the state shown in FIG. 24. It reaches the state.
• the inner lever 1 is reversely operated by the unlocking operation (including the inertia etc.) of the door lock main body DL, so that the door lock main body DL is reversed. Even if the gear 3 and the inner gear 5 are separated in order to obtain the turning force in the direction of the gear, the inner lever 5 is not 0 Rotate until it abuts on 2 (L part) '.
• the other end 3 0 3 of the protrusion 3 0 1 abuts on one L-shaped portion 7 0 3 of the spring 7 as shown in FIG. Then, bend this spring 7 and turn it in the direction of arrow C while receiving a biasing force in the opposite direction to the direction of arrow C. Then, as shown in FIG. 27, when the projection part 301 abuts on the other projection part 502 of the inner lever 5, it becomes impossible to rotate. In this state, the spring 7 stores an urging force that causes the helical gear 3 to rotate in the direction opposite to the arrow C by using the other end 3 0 3 of the projection 3 0 1 It is being done.
• the small motor 1 is de-energized at this time
• the helical gear 3 is pivoted to the position not interfering with the inner lever 5 in the opposite direction of the arrow C due to the biasing force stored in the spring 7 and released.
• the operation is completed as a result. Therefore, since there is no member that interferes with the inner lever 5, when manually locking the output lever 9 from the outside, it can be locked with a small operating force.
• the inner lever 5 connected to the door lock main body DL is released on the unlocking side by the projection portion 301 of the intermediate reduction gear.
• a rotating wall that has a stopper wall 5 0 2 b formed at the tip to be moved in a substantially arc shape together with the gear receiving portion 5 0 1 a and that is received from the projection 3 0 1 of the intermediate reduction gear Control the movement of the inner lever 5 against pressure and restrict the movement of the inner lever 5 so that the spring can not travel during the torque transfer path between the pinion 2 and the inner lever 5.
• the projection 3 0 1 of the intermediate reduction gear presses the unlocking side torque receiving portion 5 0 1 a of the inner lever 5 when the motor 1 is energized.
• the projection part 301 of the intermediate slow speed gear temporarily moves in the substantially arc-shaped moving orbit of the inner lever 5. Then, the inner lever 5 bends the L-shaped portion 7 0 3 of the spring 7 while pressing the cushion 8 0 2. After the current flow to E1 is stopped, the elastic reduction stored in the L-shaped part 7 0 3 of spring 7 makes the protrusion 3 0 1 of the intermediate reduction gear an inner lever.
• the clutch mechanism can be achieved with only two components, inner lever 5 and spring 7, and can be achieved at low cost.
• the end of the L-shaped portion 70 2, 7 0 3 of spring 7 abuts against the inner wall of case 10 and the cushion is cut. It has a curved portion that substitutes the functions of 801 and 8002.
• a rubber cushion 1 2 having the same function is fixed to the inner lever 5 in place of the spring 7 and FIG. 2 9 Similar to the example shown in the figure, rubber cushion 1 2 is abutted against the inner wall of case 10 to substitute the functions of cushions 80 1 and 80 2. Ru.
• the rubber cushions 1 and 2 shown in FIG. 30 may be connected together and formed integrally. Also, instead of substituting the functions of the sessions 801 and 8002 in the rubber 12, the function of the spring 7 is merely substituted. It is also possible to have configurations that do not abolish Kussini 801, 802. Industrial applicability
• the door lock drive device operates after the motor is operated and locked or unlocked, and after the energization of the motor has been stopped, the door lock drive device is resilient. It is effective as a door lock drive that can reduce the gear noise generated when the middle gear is rotated by the body.

Family

ID=

Similar Documents