JPH0668991U - Mirror drive - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To simplify the connection between the mirror actuator section and the drive signal wire, and to reduce the assembly time and the cost by reducing the parts. [Structure] On a housing front 21 forming a part of a mirror actuator portion, a breaking portion 51 formed in a V shape for breaking a coating of an electric wire, and a U-shaped formed electric contact with a core wire of the electric wire are provided. The pressure contact terminal portions 39a, 39b, 39c composed of the contact portion 50 for performing are provided, and the protrusion portion 56 for pressing the electric wire and the pressure contact terminal portions 39a, 39b, 3 are provided.
An electric wire pressing portion 70 including a groove portion for preventing interference with 9c is also provided. The pressure contact terminal portions 39a, 39
The electric wire 54 is mounted between the wire b, 39c and the electric wire pressing portion 70, and a pressing force is applied between the electric wire 54 and the electric wire pressing portion 70, whereby the breaking portion 51 breaks the coating 52 of the electric wire and the contact portion 50.
By entering the broken coating and making electrical contact with the core wire 53 of the electric wire, the electric connection between the electric wire 54 and the mirror actuator portion is realized.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric mirror installed in an automobile or the like.

[0002]

[Prior art]

 In recent years, many of the side mirrors installed in automobiles are of the electric type, and in vehicles equipped with such side mirrors, the driver can switch from inside the vehicle according to his / her physique and preferred driving posture. The mirror position can be adjusted freely. Further, such an electric side mirror is provided with a drive source such as a motor for adjusting the position of the mirror portion. This motor operates by the drive signal sent from the vehicle body side. Conventionally, the connection between this motor and the electric wire to which the drive signal is sent contains the receptacle pin, the plug pin and these contacts. In many cases, a connector composed of a housing was used.

To this end, the coating on the tip of each lead wire of the motor is removed, the plug pin is crimped with a dedicated tool and inserted into the housing for this pin, while the wire is also stripped of its coating. The receptacle pin is crimped with a special tool and inserted into the housing for this pin, after which the two housings are fitted together. Then, the plug pin and the receptacle pin in these housings come into contact with each other to connect the lead wire and the electric wire of the motor.

[0004]

[Problems to be solved by the device]

 However, in the above method, the coating of both the motor lead wire and the electric wire is removed, the pins are crimped with a special tool, and then the pins are inserted into each housing. Since the electrical connection is completed only by inserting the two housings into each other, a lot of assembly time was required for assembling this part and many parts were required.

The present invention has been made to solve such a problem, and in the assembly of an electric mirror drive device, the assembly time and the number of parts are reduced as much as possible, so that the cost is further reduced. An object is to provide a mirror driving device.

[0006]

[Means for Solving the Problems]

 According to a first aspect of the present invention, in a mirror drive device for a vehicle including a mirror actuator section for changing a mirror position by an electric drive means such as a motor, a breaking portion for breaking a coating of an electric wire with respect to the electric drive means, In addition to providing the press contact terminal part, which consists of a contact part that goes into the inside of the broken coating and makes electrical contact with the core wire of the wire, to the above-mentioned mirror actuator part, and to connect the core wire of the wire and the press contact terminal part. A protrusion that presses the electric wire against the pressure contact terminal so that electrical contact is made between them, and a groove that prevents the pressure contact terminal and the protrusion from interfering with each other when pressing the wire. The electric wire pressing portion composed of the above is provided.

According to a second aspect of the invention, the wire pressing portion is rotatably provided on the mirror actuator portion.

According to a third aspect of the present invention, a guide wall for guiding the electric wire pressing portion is provided on the periphery of the press contact terminal portion of the mirror actuator portion, and a guided wall guided by the guide wall is provided in the electric wire pressing portion. It is configured to be provided.

According to a fourth aspect of the invention, a supporting member for supporting the mirror actuator portion is provided, and the wire pressing portion is provided on the supporting member.

According to a fifth aspect of the present invention, a hole is provided in the support member, and the wire pressing portion is provided with the engaging portion so as to be engageable with the hole.

[0011]

According to the first aspect of the present invention, the protrusion of the electric wire pressing portion only presses the electric wire against the press contact terminal portion provided on the mirror actuator portion, and the breaking portion breaks the coating of the electric wire and the contact portion. By making electrical contact with the core wire of the electric wire, the electric connection between the electric wire and the mirror actuator can be realized.

According to the second aspect of the invention, when the electric wire pressing portion rotatably provided on the mirror actuator portion presses the electric wire, the press contact terminal portion is connected to the electric wire.

According to the third aspect of the present invention, the guided wall of the electric wire pressing portion enters along the guide wall of the mirror actuator portion to press the electric wire, so that the electric connection between the electric wire and the pressure contact terminal portion is realized. To be done.

According to a fourth aspect of the present invention, by mounting the mirror actuator portion on the support member, the wire pressing portion provided on the support member presses the wire against the pressure contact terminal portion to realize electrical connection. It is what is done.

According to a fifth aspect of the present invention, the electric wire is pressed by pressing the electric wire pressing portion by fixing the electric wire pressing portion by engaging the locking portion with the hole of the supporting member. By being pressed by the portion, the electrical connection with the press contact terminal portion is realized.

[0016]

【Example】

 FIG. 1 is a schematic diagram showing the configuration of an electric mirror for implementing the present invention. An embodiment of the present invention will be described with reference to this drawing.

This electric mirror is composed of a base 1 for supporting the entire mirror on the vehicle body, and a mirror body 2 for enclosing the mechanism of the mirror. The mirror body 2 includes a gearbox 3 and a frame. A (support member) 4, a mirror actuator section 5, and a mirror section 6 are incorporated. The gear box 3 is a mechanism that supports the mirror body 2 with respect to the base 1 so as to be electrically swingable at a predetermined angle as indicated by an arrow r in FIG. Then, the gear box 3 is fixed to the frame 4, and the mirror actuator portion 5 supports the mirror portion 6 with respect to the frame 4 by a ball joint structure of three places (only two places are shown), and within a certain angle range. The angle of the mirror section 6 can be freely adjusted with.

The mirror actuator section 5 is actually configured as shown in FIGS. 2 and 3. Referring to FIG. 2, the structure of the mirror actuator section 5 will be described. The mirror actuator section 5 includes a housing front 21 and a housing gliding 22, and the motors 23a and 23b as electric drive means, the worm 24a, 24b, worm wheels 25a and 25b, pivot screws 26a and 26b, seal covers 27a and 27b, press fittings 30a, 30b and 30c, and the like.

The housing front 21 is provided with through holes 33a, 33b and 33c, and two cylindrical parts 28a and 28b, which are threaded, are integrally provided inside. On the other hand, the worm wheels 25a and 25b are hollow so that the cylindrical portions 28a and 28b can be inserted therein, and the upper surfaces thereof are provided with Y-shaped openings 36a and 36b, respectively. Gears 29a and 29b are provided on the outer circumferences of the worm wheels 25a and 25b, respectively.

Further, the pivot screws 26a and 26b respectively have top portions 34a and 34b for constructing a ball joint and three leg portions 37a and 37b, and the lower ends of these three leg portions 37a and 37b. The periphery is threaded so that it can be screwed into the threaded portions in the cylindrical portions 28a and 28b.

In order to combine the above-mentioned respective parts, first, the press-fitting metal fittings 30a, 30b, 30c are inserted into the through holes 33a, 33b, 33c, respectively. That is, the pressure contact fitting 30a is inserted into the through hole 33a, the pressure contact fitting 30b is inserted into the through hole 33b, and the pressure contact fitting 30c is inserted into the through hole 33c.

Then, the worm wheel 25a is mounted on the cylindrical portion 28a so that the three leg portions 37a of the rear pivot screw 26a are attached to the corners of the opening 36a provided on the upper surface of the worm wheel 25a. The threaded portion 20a of the pivot screw 26a and the threaded portion on the inner circumference of the cylindrical portion 28a are screwed together.

Then, the worm 24a is fitted into the shaft of the motor 23a, and then the motor 23a is installed at a position where the worm 24a meshes with the gear 29a of the worm wheel 25a already mounted.

Similarly to the above, the worm wheel 25b and the pivot screw 26b are mounted, and then the worm 24b and the motor 23b are mounted. Then, seal covers 27a, 27b for preventing dust, raindrops or moisture from entering the inside of the mirror actuator unit 5 are mounted so as to cover the cylindrical screws 28a, 28b from above the pivot screws 26a, 26b. , The tops 34a, 34b of the pivot screws 26a, 26b are seen through the small holes 31a, 31b of the seal covers 27a, 27b, respectively. Then, the housing rear 22 is mounted so as to cover the housing front 21 on which the respective components are already mounted.

The mirror actuator portion 5 assembled in this manner is provided with through holes 33a, 33b in order to prevent raindrops from entering through the through holes 33a, 33b, 33c of the housing front 21 as much as possible. , 33c are mounted in the mirror body 2 so that they are aligned in the vertical direction, the state shown in FIG. 1 is obtained.

The specific structure and operation of the mirror actuator unit 5 assembled as described above will be described with reference to FIG. FIG. 3 shows a vertical cross section at the center of the pivot screw 26a after being assembled. As described above, the worm 24a engaged with the shaft of the motor 23a meshes with the gear 29a provided on the outer periphery of the worm wheel 25a. Therefore, when the motor 23a rotates, the worm wheel 25a is rotationally driven via the worm 24a. Further, the opening 36a located near the center of the worm wheel 25a has a Y shape as shown in FIG. 2, and the pivot screw 26a located in the opening 36a has a threaded end. It also has three legs 37a, and each leg 37a is mounted so as to fit into each corner of the Y-shaped opening 36a. As a result, when the worm wheel 25a rotates, the pivot screw 26a also rotates.

When the pivot screw 26a rotates in this manner, the screw portion 20a of the leg portion 37a is screwed with the screw portion of the inner circumference of the cylindrical portion 28a fixed to the housing front 21 as described above. Therefore, the crown portion 34a of the pivot screw 26a moves in either direction of the arrow t shown in FIG. 3, and this movement is performed in an arcuate locus with the central ball joint portion 38b as the center. If the rotation direction of the motor 23a is reversed, the movement direction of the pivot screw 26a will be reversed. Therefore, the mirror portion 6 engaged with the crown portion 34a by the ball joint portion 38a is also changed in position with this movement, and as a result, the angle of the mirror portion 6 can be adjusted in the direction of arrow u in FIG. Becomes

Further, in the mirror actuator portion 5, a ball joint portion of another unit composed of a motor 23b, a worm 24b, a worm wheel 25b and a pivot screw 26b is provided with the central ball joint portion 38b as the center. Since the ball joint portion 38a is provided at a position rotated by about 90 degrees (the position of the cylinder 28b in FIG. 2), when this ball joint portion moves, the angle in the direction of arrow s shown in FIG. Adjustment is possible.

In the above embodiment, the case where the leg portions 37a and 37b of the pivot screws 26a and 26b are composed of three legs is shown, but the above-mentioned operation can be realized with other numbers. The number is not limited to three. Further, although the openings 36a and 36b of the worm wheels 25a and 25b are formed in a Y shape in this embodiment, the shapes of the openings 36a and 36b are adjusted according to the number and shape of the leg portions 37a and 37b. Should be determined, and the shape is not limited to the Y-shape.

As described above, if the motors 23a and 23b of the two units are controlled with respect to the rotation direction and the rotation amount, the angle of the mirror portion 6 can be freely adjusted within a certain range.

In order to perform this angle adjustment, it is necessary to send a drive signal from the vehicle body side to the motors 23a, 23b, and for this reason, the pressure fittings 30a, 30b, 30c function. How the pressure contact terminals 39a, 39b, 39c of the pressure contact metal fittings 30a, 30b, 30c are electrically connected to the electric wire to which the drive signal is sent will be described with reference to FIGS. 4 (a) and (b). explain.

The crimping metal fittings 30a, 30b, 30c made of a good electrical conductor are formed at their ends as shown by 39a, 39b, 39c in FIG. 4 (a), and these crimping terminals are formed. Function as a department. That is, each pressure contact terminal portion 39a, 39b, 39c is formed by notching a part of the tip of the pressure contact metal fitting 30a, 30b, 30c in a V-shape and further cutting the deepest portion in a U-shape. . Further, the housing front 21 formed of an electrical insulator is provided with a partition wall 61 that guides the electric wire and also serves as an insulator with the adjacent pressure contact terminal. On the other hand, the electric wire pressing portion 70 is provided with a protrusion 56 that presses the electric wire and a portion that interferes with the press contact terminal portion when the electric wire pressing portion 70 presses the electric wire and enters in the direction of the press contact terminal. The groove 55 (see FIG. 5).

A situation will be described in which the electric wire pressing portion 70 and the press contact terminal portions 39a, 39b, 39c formed in this manner press the electric wires. First, as shown in FIG. 4A, an electric wire is mounted between the partition walls 61, and then the electric wire pressing portion 70 is pressed in the direction of the pressure contact terminal (the direction of arrow v shown in FIG. 4A). Then, the breaking portion 51 breaks the coating 52 of the electric wire, and when the electric wire is further pressed thereafter, the contact portion 50 contacts the core wire 53.

When the tip of the partition wall 61 reaches the deepest part of the wire pressing portion 70, the state shown in FIG. 4B is obtained. As a result, the core wire 53 of the electric wire 54 is sufficiently contacted with the contact portion 50 of the press contact terminal portions 39a, 39b, 39c and is connected with almost no contact resistance, and the core wire 53 has the U-shaped notch portion. The electric wire 54 is surely fixed by being pressed to the deepest portion, and the contact failure is not easily caused by external force such as vibration.

Regarding the size and shape of the V-shaped or U-shaped notch, depending on the type of electric wire or the cross-sectional area of the core wire, etc., the core wire should not be broken during crimping. Moreover, the shape and size that can obtain sufficient electrical contact are appropriately selected and used, and the shape and size are not limited to a specific shape and size.

Although the electrical connection is completed as described above, the actual connection structure between the electric wire 54 and the mirror actuator section 5 is as shown in FIGS. 5, 6, 7, and 8, for example. There are various embodiments, and each of these embodiments will be described.

The embodiment shown in FIG. 5 has a structure in which the wire pressing portion 70 is provided on the mirror actuator portion 5 in a rotatable manner. When connecting to the electric wire at the connecting portion formed in this way, first, the electric wire is inserted into the harness insertion hole 74 provided in the wall surface 72 for positioning, and each electric wire is connected to the pressure contact terminal portions 39a and 39b. , 39c through the V-shaped notches, and then the wire is dropped into the groove-shaped guide portion 71 provided on the housing front 21.

Then, when the electric wire pressing portion 70 is rotated in the direction of the arrow w shown in FIG. 5, each protrusion 56 presses each electric wire, and as shown in FIGS. Each breaking portion 51 of the press contact terminal portions 39a, 39b, 39c breaks the coating 52 of the electric wire, and then each contact portion 50 contacts the core wire 53 of the electric wire. The connection is completed when the core wire 53 reaches the deepest part of the U-shaped notch.

According to this embodiment, since the housing front 21 and the electric wire pressing portion 70 are engaged with each other by the hinge portion 77, not only a component for defining the positional relationship between them is not required, but also a space between them is provided. There is no displacement. In addition, since the connection is completed only by rotating the wire pressing portion 70 about half after mounting the wire, the wiring time can be greatly shortened.

In addition, when the housing front 21 is formed of synthetic resin or the like, the wire pressing portion 70 can be formed at the same time as the housing front 21, which contributes to further cost reduction.

Further, the embodiment shown in FIG. 6 has a structure in which the wire pressing portion 70 is provided separately from the mirror actuator portion 5. In this structure, a guide wall 80 for guiding the electric wire pressing portion 70 is provided on the periphery of the pressure contact terminal portions 39a, 39b, 39c provided on the mirror actuator portion 5, while the electric wire pressing portion 70 is guided by the guide wall 80. The guided wall 81 is provided, and the two guide walls 80, 81 are configured to define the positional relationship between the mirror actuator portion 5 and the wire pressing portion 70.

In this structure, in order to actually connect to the electric wire, the electric wires 54 are respectively inserted into the through holes 82 of the electric wire pressing portion 70, and the electric wires 54 are inserted until reaching the positioning wall 83. Thereafter, as shown in FIG. 6B, the wire pressing portion 70 is covered from above the press contact terminal portions 39a, 39b, 39c, and the guide wall 80 of the mirror actuator portion 5 and the guided wall 81 of the wire pressing portion 70 are covered. After aligning the positions with and, when the wire pressing portion 70 is pressed with a predetermined pressing force in the direction of the pressure contact terminal portions 39a, 39b, 39c, pressure contact is performed and the connection is completed.

On the other hand, in the embodiment shown in FIG. 7, the wire pressing portion 70 is previously integrally provided on the frame 4 which is a supporting member, and the mirror actuator portion 5 is fixed to the frame 4 at the same time with screws or the like. It is configured so that the electric wire is pressure-welded. When connecting in this structure, an electric wire is previously attached to the mirror actuator portion 5 side as in the case shown in FIG. 5, and then the mirror actuator portion 5 is fixed to the frame 4 with a screw 86 or the like. At this time, the electric wire pressing portion 70 presses the electric wire by the fastening force of the screw 86 and presses the electric wire to make an electrical connection.

In the embodiment of FIG. 8, the wire pressing portion 70 is attached to the frame 4 by locking the locking portion 88 in the hole 87 provided in the frame 4, and then the mirror actuator portion 5 is attached to the frame 4. When they are fixed to 4 by screwing or the like, they are pressed together and electrically connected. When actually connecting with this structure, first, the electric wire is inserted into each through hole 82 and the electric wire is inserted until it reaches the positioning wall 83, and then the locking portion 88 of the electric wire pressing portion 70 is fixed to the frame 4. It is locked in the hole 87.

After that, when the mirror actuator portion 5 is screwed onto the frame 4 with the screw 86 or the like, the pressure contact terminal portion (not shown in FIG. 8) provided on the mirror actuator portion 5 naturally becomes the electric wire pressing portion 70. Direction, and as a result, the electric wire is pressed into contact with the press contact terminal portion by the fastening force of the screw 86 and electrically connected.

In the structure shown in FIGS. 7 and 8, the force for press-contacting between the press-contact terminal part of the mirror actuator part 5 and the wire pressing part 70 is the same as when the mirror actuator part 5 is fixed to the frame 4. Since the fastening force of the screws 86 etc. is used as it is, no additional work is required just for pressure contact, which is effective in shortening the assembly time.

[0047]

[Effect of device]

 As described above, according to the present invention, the mirror actuator portion is provided with the pressure contact terminal portion including the fracture portion and the contact portion, while the protrusion for pressing the electric wire and the electric wire pressing portion including the groove portion are provided. When a pressing force is applied between the pressure contact terminal and the wire pressing part, the breaking part breaks the wire coating, and the contact part then makes contact with the core wire to establish an electrical connection and to connect the wire. Pressing is completed. Therefore, it is not necessary to remove the wire coating and crimp the connector pins, and these work steps can be omitted, so that the assembly time can be shortened and the production cost can be reduced. In addition to this, there is also the effect that the number of parts can be reduced by eliminating the need for connector pins and housings, thus further reducing production costs.

Further, since the electric wire pressing portion is rotatably provided on the mirror actuator portion, the two parts are integrated with each other, so that the efficiency of the assembling work is promoted and the electric wire pressing portion is merely folded back about 180 degrees. Since the pressure welding is completed, it is possible to further improve workability.

In addition to this, in the structure in which the wire pressing portion is integrally provided with the support member and the pressure contact is completed at the same time when the mirror actuator portion is mounted on the support member, an external force is specially applied for the pressure contact. There is also an effect that the assembling process is simplified because the process for making it unnecessary.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of an electric mirror to which the present invention is applied.

FIG. 2 is an assembly diagram of a mirror actuator unit in the electric mirror.

FIG. 3 is a vertical cross-sectional view of a worm wheel portion of the mirror actuator portion.

FIG. 4A is an explanatory view showing a state before the pressure contact terminal and the electric wire are pressure-contacted with each other, and FIG. 4B is an explanatory view showing a state after the pressure contact.

FIG. 5 is an embodiment of the present invention in which the wire pressing portion and the mirror actuator portion are integrally formed.

FIG. 6 is an embodiment of the present invention in which an electric wire pressing portion and a mirror actuator portion are formed separately, FIG. 6A shows a state in which an electric wire is attached to the electric wire pressing portion, and FIG. It is explanatory drawing which shows the state which attaches the electric wire press part to the mirror actuator part.

FIG. 7 is another embodiment of the present invention in which the wire pressing portion and the mirror actuator portion are separately formed.

FIG. 8 is still another embodiment of the present invention in which the wire pressing portion and the mirror actuator portion are separately formed.

[Explanation of symbols]

 21 housing front 39a, 39b, 39c pressure contact terminal portion 50 contact portion 51 break portion 52 coating 53 core wire 54 electric wire 56 protrusion portion 61 partition wall 70 electric wire pressing portion

Claims (5)

[Scope of utility model registration request] 1. A mirror drive device for a vehicle, comprising a mirror actuator part for changing a mirror position by an electric drive means such as a motor, and a breaking portion for breaking a coating of an electric wire for the electric drive means, and a broken coating. The mirror actuator portion is provided with a pressure contact terminal portion that is made of a contact portion that enters into the inside of the wire and makes electrical contact with the core wire of the electric wire, and an electrical contact is made between the core wire of the electric wire and the pressure contact terminal portion. As is done, a wire pressing portion composed of a protruding portion for pressing the electric wire against the pressure contact terminal portion and a groove portion for preventing the pressure contact terminal portion and the protrusion portion from interfering with each other when pressing the electric wire. A mirror drive device characterized by being provided. 2. The mirror driving device according to claim 1, wherein the wire pressing portion is rotatably provided on the mirror actuator portion. 3. A guide wall for guiding the electric wire pressing portion is provided on the periphery of the pressure contact terminal portion provided on the mirror actuator portion, and a guided wall guided by the guide wall is provided on the electric wire pressing portion. The mirror driving device according to claim 1, wherein 4. The mirror driving device according to claim 1, further comprising a support member for supporting the mirror actuator portion, and the wire pressing portion being provided on the support member. 5. The mirror driving device according to claim 4, wherein the supporting member is provided with a hole, and the wire pressing portion is provided with a locking portion so as to be locked in the hole.