The present application claims priority to and incorporates by reference the entire contents of Japanese Patent Applications No. 2020-103328, No. 2020-103329 and No. 2020-103330 filed in Japan on Jun. 15, 2020.
The present disclosure relates to an actuator device.
An actuator device including a motor is provided on a vehicle. For example, an actuator device includes a door opening and closing device as disclosed in Japanese Patent Application Laid-open No. 2013-14929. The door opening and closing device in Japanese Patent Application Laid-open No. 2013-14929 is provided on a back door of a minivan and the like, and the back door is locked by causing a meshing mechanism to engage with a striker on the vehicle body side. Such a door opening and closing device includes an electric opening and closing mechanism, and for example, shifts the door from a half-latch state to a full-latch state.
In the door opening and closing device in Japanese Patent Application Laid-open No. 2013-14929, the weight of the back door to be driven is relatively heavy, and the back door is opened and closed in the direction of gravity. Thus, automatic close and open of the back door requires a large motor to be provided. Moreover, to endure a heavy load, the door opening and closing device is configured using a strong metal bracket as a base, and gears such as a deceleration mechanism is pivotally supported by the metal bracket.
A latch that engages with a striker is provided in the door opening and closing device, and the latch includes a latch lever. The rotation of the motor is decelerated by the deceleration mechanism, and a pin provided on a sector gear in the final stage operates the latch lever.
Moreover, a door opening and closing device is provided on a vehicle. For example, the door opening and closing device includes a latch that engages with a striker on the door. When the striker and the latch are in a half-latch state, the door opening and closing device can drive the latch to the full-latch state. On the door opening and closing device, a motor is mounted as an actuator for driving the latch. The door opening and closing device is connected to a body control module (BCM) via a harness. Various switches for detecting the state of the latch and the like are provided on the door opening and closing device, and signals of the switches are supplied to the BCM. The actuator is driven and controlled by the BCM on the basis of the switch signals and the like. A coupler that connects the harness is provided on the door opening and closing device. Examples of the door opening and closing device are disclosed in Japanese Patent Application Laid-open No. 2016-23460 and Japanese Patent Application Laid-open No. 2012-241418.
In the door opening and closing device disclosed in Japanese Patent Application Laid-open No. 2016-23460, the coupler, the motor, and the switches are connected by a plurality of terminals. The terminals are held by a terminal holding member made of resin. The terminal holding member is engaged with the housing by a predetermined engagement means.
In the door opening and closing device disclosed in Japanese Patent Application Laid-open No. 2012-241418, the coupler, the motor, and the switches are individually connected by wires.
Moreover, for example, an actuator device including a motor includes a power window device (Japanese Patent Application Laid-open No. 2017-225289) and a door opening and closing device (Japanese Patent Application Laid-open No. H10-146016).
In the devices disclosed in Japanese Patent Application Laid-open No. 2017-225289 and Japanese Patent Application Laid-open No. H10-146016, a plurality of rolling bearings and sliding bearings are additionally provided on a rotating shaft of a motor, to stabilize the rotation of the rotating shaft. In this manner, by additionally providing a plurality of bearings, it is possible to stabilize the rotation of the motor, and suppress vibration and noise.
To increase a vehicle interior space, downsizing of the door opening and closing device has been desired. In the door opening and closing device in Japanese Patent Application Laid-open No. 2013-14929, a sector gear is provided on a metal bracket, and a pin is protruded from the sector gear. Thus, the components are aligned in parallel in the front and rear direction, and at least the size in the front and rear direction is increased. Accordingly, further downsizing has been desired.
The present disclosure has been made in view of the above problem, and an object of the present disclosure is to provide an actuator device that can be further downsized.
In the door opening and closing device disclosed in Japanese Patent Application Laid-open No. 2016-23460, due to the structure, the motor and the terminal holding member are separate components, and are separately mounted in the housing. Moreover, the terminal and the power input unit of the motor need to be accurately positioned, and there remains a challenge in the assemblability. In the door opening and closing device disclosed in Japanese Patent Application Laid-open No. 2012-241418, the coupler, the motor, and the switches need to be separately wired, and there remains a challenge in the assemblability.
The present disclosure has been made in view of the above problems, and an object of the present disclosure is to provide an actuator device that can be easily assembled.
Bearings are relatively expensive components. Additionally providing bearings increases the number of components that may increase the number of assembly processes and the cost. In general, a plurality of bearings are required, and each of the bearings needs to be accurately mounted so as to be on the same axis as that of the rotating shaft, or the bearing support part needs to be formed with high accuracy.
In some embodiments, an actuator device according to the present disclosure includes: a meshing unit configured to mesh with and release a striker, the meshing unit including a latch; an actuator unit including a motor; an output lever configured to rotate to transmit driving force of the motor in the actuator unit to the meshing unit to drive the meshing unit; and a support member both ends of which are coupled to the meshing unit, the support member being configured to support the actuator unit, wherein the output lever is separated from the support member when viewed from an approaching/separating direction of the striker with respect to the meshing unit.
In some embodiments, an actuator device according to the present, disclosure includes: a housing; a motor stored in the housing; and a terminal holding member holding a plurality of terminals made of a metal plate, wherein the motor includes: a main body; a rotating shaft protruding from a tip end side of the main body; and a power input end provided on a base end side of the main body, and the terminal holding member includes: a motor connection part configured to hold the terminals such that a power supply end that is an end of each of the terminals is connected to the power input end; a coupler configured to hold the terminals such that another end of each of the terminals is protruded, the coupler being configured to connect to an external harness; and a peripheral surface support part configured to support a peripheral surface of the main body.
In some embodiments, an actuator device according to the present disclosure includes: a housing; a motor stored in the housing; and a shaft abutment projection provided in the housing, the shaft abutment projection being configured to protrude from the housing and come into contact with a rotating shaft of the motor from a side.
The above and other objects, features, advantages and technical and industrial significance of this disclosure will be better understood by reading the following detailed description of presently preferred embodiments of the disclosure, when considered in connection with the accompanying drawings.
Hereinafter, an embodiment, of an actuator device according to the present disclosure will be described in detail with reference to the accompanying drawings. However, the present disclosure is not limited to the embodiment.
As illustrated in
The meshing part 12 includes a body 20, the base bracket 21, a latch lever 24, a harness 25, and an open lever 26. Both right and left ends of the base bracket 21 are bent upward, and form a pair of the first brackets (first support members) 22. The base bracket 21 including the first brackets 22, the second bracket 16, and the output lever 18 are made of a metal material. The first brackets 22 form a support member 27 with the second bracket 16. The meshing part 12 and the actuator unit 14 can be disassembled, and are connected via the support member 27.
On the body 20, a striker entry groove 20a into which the striker S enters is formed. The body 20 includes a latch 30 (see
Attachment pieces 33, which are parts to be attached to the vehicle, are integrally formed on the right and left of the body 20. The outer shell part of the body 20 and the attachment pieces 33 are made of a metal material. One or two attachment holes 33a are formed on each of the attachment pieces 33. The support member 27 is fastened to the back door of the vehicle together with the meshing part 12, by a screw (not illustrated) inserted into the attachment hole 33a. Consequently, the door opening and closing device 10 is fixed to the back door.
The support member 27 formed of the pair of first brackets 22 and the second bracket 16 is a member supporting the actuator unit 14, and both ends of which are coupled to the attachment pieces 33 of the meshing part 12. Moreover, in other words, the second bracket 16 is coupled to the attachment pieces 33 via the first brackets 22.
In the support member 27, the first brackets 22 are connected to the attachment pieces 33 of the meshing part 12, and the second bracket 16 supports the actuator unit 14. The second bracket 16 is formed in a semicircular shape, and is arranged in the periphery of a circular projection part 53, which will be described below. A tapered throttle part 16a (see
The latch lever 24 rotates about a latch shaft 24a with the latch 30. An engagement pin 24b is provided on the tip end of the latch lever 24. The open lever 26 rotates about an open lever shaft 26a. The open lever 26 includes an engagement part 26b and an arm 26c. An output shaft 48 of the actuator unit 14 is fit into a shaft hole 18a of the output lever 18, and the output lever 18 rotates with the output shaft 48. The output lever 18 includes a pin 18b protruding toward the meshing part 12 side and a pressing part 18c. When the output lever 18 is rotated in the clockwise direction from the neutral position in
When the striker S enters the striker entry groove 20a, the latch 30 rotates in the clockwise direction, the claw 32a engages with the half-latch engagement part 30b, and the latch 30 is brought into the half-latch state. The BCM that has detected that the latch 30 is brought into the half-latch state further rotates the latch 30 in the clockwise direction via the actuator unit 14 and the output lever 18 (rotate in the clockwise direction from the neutral position illustrated in
To open the back door, the BCM rotates the actuator unit 14 and the output lever 18 in the counterclockwise direction from the neutral position illustrated in
The case 34 is formed of slightly harder PBT, and stores gears (a worm wheel 42, a relay gear 44, an output gear 46, the output shaft 48, and the like), which will be described below. The case 34 is strong enough to pivotally support the gears, and strong enough to be attached to the vehicle via the second bracket 16 and the first brackets 22. The cover 36 also supports the gears, but compared to the case 34, in view of the strength, the cover 36 auxiliary supports the gears. Because the cover 36 is made of POM, which is softer than the case 34, the cover 36 can absorb vibration and noise.
The housing formed by the case 34 and the cover 36 includes the motor 38, a terminal holding member 40, the worm wheel 42, the relay gear 44, the output gear 46, and the output shaft 48. A waterproof seal 50 is provided between the case 34 and the cover 36. The case 34 and the cover 36 are fastened by a plurality of screws B3. In
A positioning engagement concave part 58 recessed in the radial direction is formed on the utmost base end side on the peripheral surface of the main body 52. The positioning engagement concave part 58 is opened toward the base end side. More precisely, the positioning engagement concave part 58 is opened on the base end side in the axial direction with respect to the motor 38. A substantially elliptically shaped plane part 52a is formed on the base end part of the main body 52 excluding where the power input ends 56 are located and the vicinity thereof. A cylindrical part 52b protruding slightly toward the base end side is provided in the center of the plane part 52a. A part of the rotating shaft 54 is exposed from the center of the cylindrical part 52b. In the center of the tip end part of the main body 52, a cylindrical part 52c (see
As illustrated in
The main body storage chamber 62 and the arc-shaped projections 64 are also provided on the cover 36 (see
A pair of second support pieces (tip end support parts) 70 are formed on the case 34. The second support pieces 70 are provided on the tip end side of the main body storage chamber 62. The second support pieces 70 have base end surfaces 70a facing the base end side, and facing surfaces 70b facing each other.
The base end surfaces 70a support the motor 38 by coming into contact with the tip end surface of the motor 38, at symmetrical positions on both sides of the motor 38 with the rotating shaft 54 interposed therebetween. The base end surfaces 70a prevent the main body 52 from moving toward the tip end side, or vibrating. Moreover, as described above, because the base end side of the main body 52 is supported by the projection 66a, both sides of the main body 52 in the axial direction are supported. Consequently, the main body 52 is stabilized in the axial direction.
The facing surfaces 70b support both sides of the cylindrical part 52c of the motor 38. A pair of the facing surfaces 70b support three sides of the cylindrical part 52c with a bottom part 71a interposed therebetween. The pair of facing surfaces 70b and the bottom part 71a may be formed in an arc-shaped concaved part along the peripheral surface of the cylindrical part 52c. The facing surfaces 70b and the bottom part 71a are lightly in contact with the cylindrical part 52c or a minute gap is provided therebetween. A support projection 71b (see
The support projection 71b is formed in a plate shape elongated in a direction perpendicular to the shaft of the rotating shaft 54. The cross section of the tip end of the support projection 71b is formed in a triangular shape. The support projection 71b has a small contact area with respect to the cylindrical part 52c, can be slightly elastically compressed, and is suitable for supporting the cylindrical part 52c. In this manner, the four sides of the cylindrical part 52c are supported by the facing surfaces 70b, the bottom part 71a, and the support projection 71b, and the tip end part of the main body 52 is stabilized.
A pair of third support pieces 72 are integrally molded on the case 34. The pair of third support pieces 72 support the three sides of the tip end part of the rotating shaft 54 with a bottom part 74a interposed therebetween. The pair of third support pieces 72 and the bottom part 74a may also be formed in an arc-shaped concave part along the peripheral surface of the rotating shaft 54. The third support pieces 72 and the bottom part 74a are lightly in contact with the rotating shaft 54 or a minute gap is provided therebetween. A support surface 74b (see
A rectangular-shaped attachment hole 76 is formed on the base end side end part of the main body storage chamber 62 in the case 34, adjacent to the block 68. A small projection 76a is provided on both sides of the attachment hole 76. An attachment hole 78 and an attachment hole 80 are also provided on the bottom surface of the case 34. The attachment hole 78 is formed in the vicinity of the wall 60. The attachment hole 80 is formed on the base end side than the main body storage chamber 62. The attachment hole 80 is a long hole slightly elongated in a direction facing the attachment hole 78. The attachment holes 76, 78, and 80 are holes used for attaching the terminal holding member 40. The attachment holes 76, 78, and 80 may be bottomed holes or through holes. A coupler notch 82 from which the coupler 102, which will be described below, protrudes to the outside is formed on the case 34.
The shaft abutment projection 84 comes into contact with the rotating shaft 54 between the main body 52 and the third support pieces 72 at the tip end. More specifically, the shaft abutment projection 84 comes into contact with the rotating shaft 54 from the side between the main body 52 and the worm gear 38a. Such a shaft abutment projection 84 can stabilize the rotation of the rotating shaft 54. In particular, the shaft abutment projection 84 can prevent looseness in the radial direction, and reduce vibration and noise.
The shaft abutment projection 84 is formed in a slightly long shape, has bending elasticity in a direction of coining into contact with the rotating shaft, and is elastically deformable. The shaft abutment projection 84 also elastically comes into contact with the rotating shaft 54, and suppresses the vibration of the rotating shaft 54. To enable the shaft abutment projection 84 to generate a suitable elasticity with respect to the rotating shaft 54, the height H from the bottom surface of the cover 36 to the abutment part with respect to the rotating shaft 54 may be two times or more of the diameter D of the rotating shaft 54, or preferably about three times of the diameter D. To enable the shaft abutment projection 84 to come into contact with the rotating shaft 54 in a stable manner, the width W may set substantially equal to the diameter D. More specifically, the width W may be about 0.5 times to 1.5 times with respect to the diameter D. As described above, for example, the cover 36 is made of POM, and has excellent elasticity and abrasion resistance. Thus, the cover 36 can press the rotating shaft 54 with suitable elasticity and has high durability.
The shaft abutment projection 84 supports the rotating shaft 54 from the lower side in the vertical direction (vertical direction in a vehicle attachment state) (see FIG. 6). The shaft abutment projection 84 acts so as to support the gravity of the rotating shaft 54 and the main body 52, and improves the vibration suppression effect. The shaft abutment projection 84 can suitably suppress vibration and noise, as long as the shaft abutment projection 84 comes into contact with at least one side of the rotating shaft 54.
Returning to
In the door opening and closing device 10 configured in this manner, when viewed from the rear, the output lever 18 is separated from the support member 27. Thus, the output lever 18 can be protruded toward the rear without interfering the support member 27, and the flexibility of arranging the output lever 18 and the support member 27 in the front and rear direction is improved. Thus, when viewed from the above (in other words, a direction perpendicular to the approaching/separating direction of the striker S) (see
Moreover, the latch lever 24 and the open lever 26 of the meshing part 12 are driven via the output lever 18. Thus, for example, compared to when the latch lever 24 and the open lever 26 are driven directly by the output gear 46, there is flexibility in layout, and the motor 38 can be arranged at the lower part. As a result, the size of the door opening and closing device 10 can be suppressed in the up and down direction, and further downsizing is possible. Furthermore, the output lever 18 is protruded toward the rear without interfering the support member 27. Thus, the distance between the latch lever 24 and the open lever 26 is reduced, and the loss of transmission power is reduced. As a result, the output of the motor 38 can be reduced, and further downsizing is possible.
The door opening and closing device 10 is fixed to the back door by the attachment pieces 33 on the slightly lower side. During the door closing operation and during the acceleration and deceleration of a vehicle, the inertial force in the front and rear direction is applied to the actuator unit 14 on the upper side. However, because the actuator unit 14 is fixed to the second bracket 16 by the screw B2, the oscillation is prevented. Because the actuator unit 14 is fixed to the second bracket 16 with the two screws B2 suitably separated in the right and left direction, the stability is high.
When viewed from the rear, the support member 27 and the meshing part 12 surround the output lever 18, are well balanced, and have high strength.
When viewed from the rear, the support member 27 extends in an arc shape along the circular projection part 53, and the second bracket 16 of the support member 27 is fastened to the actuator unit 14. Thus, the layout properties of the meshing part 12 and the actuator unit 14 is further improved. Moreover, a fastening part (fastened by the screw B2) of the meshing part 12 and the actuator unit 14 can be arranged above the meshing part 12 to some degree within a limited space. As a result, further downsizing and increase in strength are possible.
Because the circular projection part 53 is arranged inside the region 85 (see
The meshing part 12 and the actuator unit 14 connected via the support member 27 can be disassembled. As a result, the meshing part 12 and the actuator unit 14 are suitable for manufacturing, assembling, and maintenance.
The deceleration mechanism 51 that decelerates the rotation of the motor 38 and that transmits the decelerated rotation to the output lever 18 is provided on the actuator unit 14 instead of the meshing part 12, and is covered by the housing with the motor 38. As a result, the deceleration mechanism 51 is protected from dust and the like.
The first brackets 22 and the second bracket 16 are connected by the joint screw B1 and can be disassembled. As a result, the first brackets 22 and the second bracket 16 are suitable for manufacturing, assembling, and maintenance. The first brackets 22 and the second bracket 16 may be integrally formed. The support member 27 formed by the first brackets 22 and the second bracket 16 may be integrally formed with the body 20 or the attachment piece 33.
The support member 27 is fastened to the door of a vehicle together with the meshing part 12 by the attachment piece 33. As a result, the support member 27 is stabilized.
In the door opening and closing device 10, the case 34 and the cover 36 of the actuator unit 14 are made of a resin material. As a result, the weight can be reduced. On the other hand, the support member 27 made of a metal material is used for connecting the actuator unit 14 and the meshing part 12, and the support member 27 is connected to the case 34 to ensure a predetermined strength.
A straight line L that joins a shaft center 42a of the worm wheel 42 and a shaft center 48a of the output shaft 48 is inclined at an angle θ2 with respect to the horizon so that the shaft center 48a at the right side in
The terminal holding member 40 holds two power source terminals 86 and 86, two switch terminals 88 and 88, and the switch 90. In
The two power source terminals 86 have symmetrical structures. A power supply end 86a is formed on one of the ends of the power source terminal 86, and a coupler pin 86b is formed on the other end. The power supply end 86a and the coupler pin 86b extend in the X direction.
The power supply end 86a is a portion fit and connected to the power input end 56 of the motor 38 in the X direction, and supplies power to the motor 38. The power supply end 86a and the power input end 56 may only be fit in the X direction, and the power supply end 86a may be formed in a convex shape and the power input end 56 may be formed in a concave shape. The power supply end 86a is formed by rounding a metal plate so that the power input end 56 can be inserted therein. The power supply end 86a is slightly swollen in the Z direction.
An X member 86c extends from the power supply end 86a in the X direction. An end part of the X member 86c is coupled to a Y member 86d that bends and extends in the Y direction. The other end of the Y member 86d is coupled to a Z member 86e extending in the Z direction. The Y member 86d and the Z member 86e form the same surface. The other end of the Z member 86e is bent and coupled to the coupler pin 86b. A barb 87 is formed on the coupler pin 86b.
A switch end 88a is formed on one of the ends of the switch terminal 88, and a coupler pin 88b is formed on the other end. The switch end 88a is connected to the switch 90. The switch end 88a and the coupler pin 88b are coupled via a plurality of bending parts. A barb 87 is formed on the coupler pin 88b.
The terminal holding member 40 includes a base plate 92, the coupler housing 94, two motor connection parts 96, an arc-shaped arm (peripheral surface support part) 98, and an extension part 100. The coupler housing 94 protrudes from the base plate 92 toward one side in the X direction. The two motor connection parts 96 protrude from both ends of the base plate 92 toward the other side in the X direction. The arc-shaped arm 98 extends from one tip end surface 96aa of the motor connection part 96. The extension part 100 extends from the other tip end of the motor connection part 96 to the location of the switch 90. The terminal holding member 40 is made of a resin material, and a switch holding part 100a for holding the switch 90 is provided on the tip end of the extension part 100.
The two motor connection parts 96 have symmetrical structures. A box 96a that surrounds the power supply end 86a is provided on the tip end of the motor connection part 96. A pair of upper and lower support surfaces 96b that come into contact with a portion of the power supply end 86a swollen in the Z direction is formed in the box 96a. A support surface 96c that cones into contact with the Y member 86d and the Z member 86e is formed on a portion where the motor connection part 96 is integrally formed with the base plate 92. The power source terminal 86 is fixed, when the coupler pin 86b is inserted into a pin hole 92a of the base plate 92 in the X direction, and when the barb 87 is engaged with a predetermined engagement part. Similarly, the switch terminal 88 is also fixed, when the coupler pin 88b is inserted into the pin hole 92a in the X direction.
In the terminal holding member 40, there is no particular obstacle on the insertion side of the power source terminals 86 and the switch terminals 88 on the base plate 92, and the terminals 86 and 88 can be easily inserted. More specifically, as will be described below, the arc-shaped arm 98 extends about 90 degrees along the peripheral surface of the main body 52, from one of the pair of motor connection parts 96 (right side in
Returning to
The arc-shaped arm 98 supports the motor 38 by coming into contact with the peripheral surface of the main body 52 along the circumferential direction. The arc-shaped arm 98 is an arc-shaped plate that comes into contact with the peripheral surface of the main body 52 over about 90 degrees. The thickness of the arc-shaped arm 98 is about the same as that of the arc-shaped projections 64 (see
The motor engagement projection 106 protrudes upward in
In the terminal holding member 40, a small plate 110 (see also
The attachment projections 108, 112, and 114 are members used for attaching the terminal holding member 40 to the case 34. The attachment projection 108 is fit into the attachment hole 76 (see
To the terminal holding member 40 configured in this manner, during the assembly of the door opening and closing device 10, the motor 38 is fixed first. That is, as illustrated in
What is called a D-cut surface to prevent rotation is not formed on the peripheral surface of the main body 52 of the motor 38, but the main body 52 is downsized accordingly. Although the D-cut surface is not formed on the main body 52, because the motor engagement projection 106 and the positioning engagement concave part 58 are fit to each other, actions of positioning and prevention of rotation are obtained.
Moreover, when viewed in the axial direction, the positioning engagement concave part 58 is arranged on the straight line that is perpendicular to the straight line that joins the pair of power input ends 56, and that passes through the center point (in brief, the position of the rotating shaft 54). Furthermore, in other words, when viewed in the axial direction, the motor engagement projection 106 is arranged on the straight line that is perpendicular to the straight line that joins the pair of power supply ends 86a, and that passes through the center point. With such an arrangement, the motor 38 is fixed to the terminal holding member 40 in a good balance.
The power input ends 56 and the power supply ends 86a are power energization means and are not necessarily strong mechanically. However, in the temporarily assembled state until the terminal holding member 40 and the motor 38 are mounted on the case 34, a large external force will not be applied except the own weight of the motor 38. The terminal holding member 40 and the motor 38 are also assembled to the case 34 at a relatively early stage. Thus, there is no problem in strength. Moreover, because the main body 52 is supported by the arc-shaped arm 93, a large force will not be applied to the power input ends 56 and the power supply ends 86a.
Consequently, the coupler housing 94 is fit into the coupler notch 82. The main body 52 is stored in the main body storage chamber 62. The main body 52 is stabilized in the circumferential direction, because about a half of the peripheral surface of the main body 52 is supported by the arc-shaped projections 64 on the case 34. Moreover, because the outer peripheral surface of the arc-shaped arm 98 comes into contact with the inner peripheral surface of the main body storage chamber 62, a range of about 90 degrees of the base end side on the peripheral surface of the main body 52 is stabilized with respect to the main body storage chamber 62. The main body 52 is stabilized in the axial direction, because the plane part 52a (see
In this manner, by simply lowering the temporarily assembled motor 38 and terminal holding member 40 on a predetermined position of the case 34 as they are, the portions of the motor 38 and the terminal holding member 40 are arranged at proper positions. As a result, it is possible to easily assemble the door opening and closing device 10.
The worm wheel 42, the output gear 46, and the like are mounted on the case 34 before or after the motor 38 and the terminal holding member 40 are mounted. Then, the cover 36 is mounted on the case 34. By mounting the cover 36 on the case 34, the main body 52 is stabilized in the circumferential direction, because about a half of the peripheral surface of the main body 52 is supported by the arc-shaped projections 64 on the cover 36. In brief, the main body 52 is stabilized because almost entire peripheral surface of the main body 52 is supported by the arc-shaped projections 64 on the case 34 and the cover 36.
Moreover, the cylindrical part 52c (see
In such a door opening and closing device 10, the motor connection part 96 of the terminal holding member 40 holds the terminals so that the power supply end 86a is connected to the power input end 56 of the motor 38, and the arc-shaped arm 98 for supporting the peripheral surface of the main body 52 is provided. Thus, the motor 38 and the terminal holding member 40 can be temporarily fixed with each other in a stable manner in advance before being mounted on the case 34. Needless to say, there is no need to position the motor 38 and the terminal holding member 40 after being mounted on the case 34.
The power source terminals 86 and the switch terminals 88 are held in advance in the terminal holding member 40, and there is no need to individually connect the terminals to the motor 38 and the switch 90 in an assembly stage to the case 34. Because the two power source terminals 86 are fixed by the terminal holding member 40, polarity wiring error between the motor 38 and the coupler 102 does not occur. Because the switch terminals 88 are fixed by the terminal holding member 40, even if there are a plurality of the switches 90, wiring error does not occur.
The motor 38 is a high output type required for opening and closing the back door, and the reaction force in the circumferential direction is large. Moreover, a D-cut surface to prevent rotation is not provided on the main body 52. Thus, the main body 52 tends to shift in the circumferential direction if nothing is done. However, because the motor engagement projection 106 is engaged with the positioning engagement concave part 58, the main body 52 is positioned in the circumferential direction and is stabilized. Moreover, because the motor engagement projection 106 and the attachment projection 108 (see
Furthermore, the main body 52 is further stabilized in the circumferential direction, because the peripheral surface and the cylindrical part 52c of the main body 52 are supported by parts of the case 34 and the cover 36. Still furthermore, because the main body 52 and the rotating shaft 54 are each supported at a plurality of locations, the vibration of the motor 38 is suppressed and noise is reduced.
Such a door opening and closing device 10 includes the shaft abutment projection 84 integrally molded with the cover 36, protruding from the bottom surface of the cover 36, and coming into contact with the rotating shaft 54 from the side. With such a shaft abutment projection 84, it is possible to suppress the vibration and noise of the rotating shaft 54. Moreover, because there is no need to provide a separate bearing or the like additionally, it is possible to easily assemble the door opening and closing device 10. Furthermore, because the number of components is not increased, it is possible to suppress the cost.
The shaft abutment projection 84 may also be formed separate from the cover 36, and attached to the cover 36. Even if the shaft abutment projection 84 is separately formed from the cover 36, the corresponding effects can be obtained as long as there is at least one shaft abutment projection 84. Thus, it is possible to suppress an increase in the number of components and an increase in cost. Moreover, because the shaft abutment projection 84 may only be provided on the rotating shaft 54 so as to have a reasonable elasticity, there is no need to accurately mount the shaft abutment projection 84. Thus, it is possible to easily assemble the door opening and closing device 10. In the door opening and closing device 10, a bearing for supporting the rotating shaft 54 may be provided according to the design conditions. When the bearing is provided, the rotation of the motor 38 is further stabilized.
There may be a plurality of the shaft abutment projections 84. The shaft abutment projections 84 may be provided separately from the cover 36 and the case 34. The shaft abutment projections B4 may be arranged along the axial direction of the rotating shaft 54. The actuator device according to the present disclosure is not limited to the door opening and closing device 10 described above, and may be applicable to other devices including an actuator such as the motor 38.
The present disclosure is not limited to the embodiment described above, and can be freely modified without departing from the spirit of the present disclosure.
In the actuator device according to the present disclosure, the output lever is separated from the support member when viewed from the approaching/separating direction of the striker with respect to the meshing part. Consequently, the output lever can be protruded in the approaching/separating direction of the striker without interfering the support member, and flexibility of arranging the output lever and the support member is improved. Thus, it is possible to sufficiently reduce the gap between the output lever and the support member on the plane, or overlap parts of the output lever and the support member. As a result, the size of the actuator device can be reduced, and further downsizing is possible.
In the actuator device according to the present disclosure, the motor connection part of the terminal holding member holds the terminals so that the power supply end is connected to the power input end of the motor. Moreover, the peripheral surface support part supporting the peripheral surface of the main body is provided. Thus, the motor and the terminal holding member can be temporarily fixed with each other in a stable manner in advance before being mounted on the case. Then, by simply lowering the temporarily assembled motor and terminal holding member on a predetermined position of the housing as they are, the portions of the motor and the terminal holding member are arranged at proper positions. As a result, it is possible to easily assemble the actuator device.
The actuator device according to the present disclosure includes the shaft abutment projection provided in the housing and that comes into contact with the rotating shaft from the side. With such a shaft abutment projection, it is possible to suppress the vibration and noise of the rotating shaft. The shaft abutment projection is inexpensive, and can reduce the cost.
Moreover, in the actuator device according to the present disclosure, the shaft abutment projection is integrally molded with the housing. With such a shaft abutment projection, it is possible to suppress the vibration and noise of the rotating shaft. Moreover, compared to the bearing, the shaft abutment projection is inexpensive, and can suppress the cost.
When the shaft abutment projection is integrally molded with the housing, it is possible to further suppress the number of components, and easily assemble the actuator device.
Although the disclosure has been described with respect to specific embodiments for a complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art that fairly fall within the basic teaching herein set forth.
Number | Date | Country | Kind |
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2020-103328 | Jun 2020 | JP | national |
2020-103329 | Jun 2020 | JP | national |
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